����JFIF�����%%��� }!1AQa"q2���#B��R��$3br� %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz������������������������������������������������������������������������� w!1AQaq"2�B���� #3R�br� $4�%�&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�������������������������������������������������������������������������� ?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y| �� O�������h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@��o�E��/�?��ߵE_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ ?�z�����������goڢ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?� �=[�Qg� ����o����Q@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���V��Y�����[����TP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,���|-��v��(���� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�������;~��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@�������?�_�� ���j������ (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@��o�E��/�?��ߵE_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ ?�z�����������goڢ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?� �=[�Qg� ����o����Q@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���V��Y�����[����TP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,���|-��v��(���� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�������;~��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@�������?�_�� ���j������ (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@��o�E��/�?��ߵE_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ ?�z�����������goڢ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?� �=[�Qg� ����o����Q@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���V��Y�����[����TP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,��������ο�O�P��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ �� ��(���g���Y������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �V��Y|����Y����UP��@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P����,�����,��u������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j���h�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� �@���o�E��?�?����ο�U_�P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ _�z����� ������g_ڪ�?��(�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (��?�/�=[�Qe�����g����U@ ��P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@ ��� ��� k� w���~���v��������� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (�� (���տ�_�����:��T�~�@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@P@������/��� ?��j�?�5o�%��?��� g����U@�� ���&O3���� �a�;�^=�wH���D��/��*� �fX�I���,������k?g_���?�5o�%��?��� g����U@�F�����������*�� ����?�o�}��Τ~g�� ʀ�#V��Y������~ο�T�j��K/� ������������z��������#;�~���A �;�� � w�F�����������*���տ��_�@�o��5����EU ������ ������u�誠��W��[�����������O��?jW ���@��տ���@�o��5����EM ������������v�訠�#V��Y�������������V��Zv��~����v w�~���c�Q@ ���,��~���kgo���?�5o�%��/��� o����Q@��o�%�>�ߤ�� �߳����S������?��o�%�~�ߠ�d�߳����S����g�P��j��K?� _������������[� g�D ����[�;�TP7� ��������'Ѿ���=� �;/�P��j��K?� _������������[� g�D ����[�;�TP���,��~���kgo���a������۔� ��B{ � ��ea�`T �+ �n%Ц �����j��K?� _������������[� g�D ����[�;�TP���,��~���kgo����?���%�/�~�����#����x��c �~�q�v�t`ȫ��_'h�� ����� ��'�]�;{s� Pp=N= 5���%���� �ڜs�����=���J� � A@�����Kp�b��}��X�����4g v+:�Բ�+60�ʩ,� @�����������I �uO� ����ToUv��bgUl�cP�T?�#V��Y������������j��K?� _����������!��X��]���������TK�|4��`� ��#��P\y��aa >NgL��j��K?� _������������[� g�D ����[�;�TP���,��~���kgo���o�F�����$��ہ�� ��vݞr6��S�q''*02���[� g�D ����[�;�TP���,��~���kgo���?�5o�%��/��� o����Q@�F�����������*(��տ���@�o��5����EE ������������v�訠�� ������~1�o� �� }G�L�������5o�%��/��� o����Q@�F�����������*(��տ���@�o��5����EE5����%�˷���r�v� ���y�\~���)(?0���=[� i����>� �gc��N=����5o�%��/��� o����Q@�F�����������*(��W��Z�l����m#���X�wn_�j`0C6윅����5o�%��/��� o����Q@��տ��y9��� gbO�G�5@�n�>���#V��Y������~ο�T��V��Y����9� gc��s�T.�?Z_��[� e�D����Y�:��UP���,������k?g_����_�=_� n�~~�rI������w�,"~ԓ�!72���)( u��#V��Y������~ο�T�j��K/� ��������������K
�����Kr_���}�De>~��Z=��pjX�n[p(�"� �a,Ub�/�×�<����;��<�����K>��o���[�:����V���,��$ ��ϧ�*��� ��5O����տ��_�@�o��5����EU5��o�%����?�ꜜm�_�;>Gbs�S�����@��տ��_�@�o��5����EU ��տ��}�~�����v?�������-��o�l ��~�ȥ�v����r��B1���@��տ���A�?��� �ggP��c�S�`@%�*����տ��_�@�o��5����EU ������ ������u�誠7� ��� O� ��!c�|0��ёv��4 �+�X�Vx�RX3��8����K>��o���[�:���u#�x��#V��Y������~ο�T�j��K/� ������������[� e�D����Y�:��UP���,������k?g_���O��[� g�D ����[�:��T��=_� k����~��k����c�;����.8� ���c� �z��Ͽ�/��zc�o����F?Z_��[� e�D����Y�:��UP���,������k?g_���C���,�v����v�o���H������( �z���w�/�� ���v ��T.G��Ϡ���տ��_�@�o��5����EU ������ ������u�誠��W��[��'����%��o� ��:�Cڕ�R̀���j����� ����?�o���[�;������g 0q�?��o�%�>o�_��>� gf ����~4������� ������u�誠 �z��� 7�/�� o������� ��_��[� e�D����Y�:��UP���,������k?g_���C���,�|�����o��;�Ԟ��9�l�z��ؠ3|��O�X�~���;~�q����Z�F�����������*���տ��_�@�o��5����EU!��տ��}�~����-��G��I�T������� ������u�誠�#V��Y������~ο�T�j��K/� ����������#�=_� n|���KbB� gtdM��"�ڒA#n�63�6�m�P�����,���/��� gS�u����#�9��5o�%��?��� g����U@��o�%�o�_�����u ��'���� ���?��o��� ���3��?go� ��|m�ڇ���-S�O��x��>���^�����7����x�]_�>�qke>���m��4��7P�Yހ��
0byt3m1n1
0byt3m1n1
Path:
/
hermes
/
bosweb
/
web
/
web
/
web
/
web
/
b1720
/
just4yourhealth.com
/
moodle3
/
lib
/
[
Home
]
File: weblib.php
<?php // $Id$ /////////////////////////////////////////////////////////////////////////// // // // NOTICE OF COPYRIGHT // // // // Moodle - Modular Object-Oriented Dynamic Learning Environment // // http://moodle.com // // // // Copyright (C) 1999 onwards Martin Dougiamas http://dougiamas.com // // // // This program is free software; you can redistribute it and/or modify // // it under the terms of the GNU General Public License as published by // // the Free Software Foundation; either version 2 of the License, or // // (at your option) any later version. // // // // This program is distributed in the hope that it will be useful, // // but WITHOUT ANY WARRANTY; without even the implied warranty of // // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // // GNU General Public License for more details: // // // // http://www.gnu.org/copyleft/gpl.html // // // /////////////////////////////////////////////////////////////////////////// /** * Library of functions for web output * * Library of all general-purpose Moodle PHP functions and constants * that produce HTML output * * Other main libraries: * - datalib.php - functions that access the database. * - moodlelib.php - general-purpose Moodle functions. * @author Martin Dougiamas * @version $Id$ * @license http://www.gnu.org/copyleft/gpl.html GNU Public License * @package moodlecore */ /// We are going to uses filterlib functions here require_once("$CFG->libdir/filterlib.php"); require_once("$CFG->libdir/ajax/ajaxlib.php"); /// Constants /// Define text formatting types ... eventually we can add Wiki, BBcode etc /** * Does all sorts of transformations and filtering */ define('FORMAT_MOODLE', '0'); // Does all sorts of transformations and filtering /** * Plain HTML (with some tags stripped) */ define('FORMAT_HTML', '1'); // Plain HTML (with some tags stripped) /** * Plain text (even tags are printed in full) */ define('FORMAT_PLAIN', '2'); // Plain text (even tags are printed in full) /** * Wiki-formatted text * Deprecated: left here just to note that '3' is not used (at the moment) * and to catch any latent wiki-like text (which generates an error) */ define('FORMAT_WIKI', '3'); // Wiki-formatted text /** * Markdown-formatted text http://daringfireball.net/projects/markdown/ */ define('FORMAT_MARKDOWN', '4'); // Markdown-formatted text http://daringfireball.net/projects/markdown/ /** * TRUSTTEXT marker - if present in text, text cleaning should be bypassed */ define('TRUSTTEXT', '#####TRUSTTEXT#####'); /** * Javascript related defines */ define('REQUIREJS_BEFOREHEADER', 0); define('REQUIREJS_INHEADER', 1); define('REQUIREJS_AFTERHEADER', 2); /** * Allowed tags - string of html tags that can be tested against for safe html tags * @global string $ALLOWED_TAGS */ global $ALLOWED_TAGS; $ALLOWED_TAGS = '<p><br><b><i><u><font><table><tbody><thead><tfoot><span><div><tr><td><th><ol><ul><dl><li><dt><dd><h1><h2><h3><h4><h5><h6><hr><img><a><strong><emphasis><em><sup><sub><address><cite><blockquote><pre><strike><param><acronym><nolink><lang><tex><algebra><math><mi><mn><mo><mtext><mspace><ms><mrow><mfrac><msqrt><mroot><mstyle><merror><mpadded><mphantom><mfenced><msub><msup><msubsup><munder><mover><munderover><mmultiscripts><mtable><mtr><mtd><maligngroup><malignmark><maction><cn><ci><apply><reln><fn><interval><inverse><sep><condition><declare><lambda><compose><ident><quotient><exp><factorial><divide><max><min><minus><plus><power><rem><times><root><gcd><and><or><xor><not><implies><forall><exists><abs><conjugate><eq><neq><gt><lt><geq><leq><ln><log><int><diff><partialdiff><lowlimit><uplimit><bvar><degree><set><list><union><intersect><in><notin><subset><prsubset><notsubset><notprsubset><setdiff><sum><product><limit><tendsto><mean><sdev><variance><median><mode><moment><vector><matrix><matrixrow><determinant><transpose><selector><annotation><semantics><annotation-xml><tt><code>'; /** * Allowed protocols - array of protocols that are safe to use in links and so on * @global string $ALLOWED_PROTOCOLS */ $ALLOWED_PROTOCOLS = array('http', 'https', 'ftp', 'news', 'mailto', 'rtsp', 'teamspeak', 'gopher', 'mms', 'color', 'callto', 'cursor', 'text-align', 'font-size', 'font-weight', 'font-style', 'font-family', 'border', 'border-bottom', 'border-left', 'border-top', 'border-right', 'margin', 'margin-bottom', 'margin-left', 'margin-top', 'margin-right', 'padding', 'padding-bottom', 'padding-left', 'padding-top', 'padding-right', 'vertical-align', 'background', 'background-color', 'text-decoration'); // CSS as well to get through kses /// Functions /** * Add quotes to HTML characters * * Returns $var with HTML characters (like "<", ">", etc.) properly quoted. * This function is very similar to {@link p()} * * @param string $var the string potentially containing HTML characters * @param boolean $strip to decide if we want to strip slashes or no. Default to false. * true should be used to print data from forms and false for data from DB. * @return string */ function s($var, $strip=false) { if ($var === '0' or $var === false or $var === 0) { return '0'; } if ($strip) { return preg_replace("/&(#\d+);/i", "&$1;", htmlspecialchars(stripslashes_safe($var))); } else { return preg_replace("/&(#\d+);/i", "&$1;", htmlspecialchars($var)); } } /** * Add quotes to HTML characters * * Prints $var with HTML characters (like "<", ">", etc.) properly quoted. * This function is very similar to {@link s()} * * @param string $var the string potentially containing HTML characters * @param boolean $strip to decide if we want to strip slashes or no. Default to false. * true should be used to print data from forms and false for data from DB. * @return string */ function p($var, $strip=false) { echo s($var, $strip); } /** * Does proper javascript quoting. * Do not use addslashes anymore, because it does not work when magic_quotes_sybase is enabled. * * @since 1.8 - 22/02/2007 * @param mixed value * @return mixed quoted result */ function addslashes_js($var) { if (is_string($var)) { $var = str_replace('\\', '\\\\', $var); $var = str_replace(array('\'', '"', "\n", "\r", "\0"), array('\\\'', '\\"', '\\n', '\\r', '\\0'), $var); $var = str_replace('</', '<\/', $var); // XHTML compliance } else if (is_array($var)) { $var = array_map('addslashes_js', $var); } else if (is_object($var)) { $a = get_object_vars($var); foreach ($a as $key=>$value) { $a[$key] = addslashes_js($value); } $var = (object)$a; } return $var; } /** * Remove query string from url * * Takes in a URL and returns it without the querystring portion * * @param string $url the url which may have a query string attached * @return string */ function strip_querystring($url) { if ($commapos = strpos($url, '?')) { return substr($url, 0, $commapos); } else { return $url; } } /** * Returns the URL of the HTTP_REFERER, less the querystring portion if required * @param boolean $stripquery if true, also removes the query part of the url. * @return string */ function get_referer($stripquery=true) { if (isset($_SERVER['HTTP_REFERER'])) { if ($stripquery) { return strip_querystring($_SERVER['HTTP_REFERER']); } else { return $_SERVER['HTTP_REFERER']; } } else { return ''; } } /** * Returns the name of the current script, WITH the querystring portion. * this function is necessary because PHP_SELF and REQUEST_URI and SCRIPT_NAME * return different things depending on a lot of things like your OS, Web * server, and the way PHP is compiled (ie. as a CGI, module, ISAPI, etc.) * <b>NOTE:</b> This function returns false if the global variables needed are not set. * * @return string */ function me() { if (!empty($_SERVER['REQUEST_URI'])) { return $_SERVER['REQUEST_URI']; } else if (!empty($_SERVER['PHP_SELF'])) { if (!empty($_SERVER['QUERY_STRING'])) { return $_SERVER['PHP_SELF'] .'?'. $_SERVER['QUERY_STRING']; } return $_SERVER['PHP_SELF']; } else if (!empty($_SERVER['SCRIPT_NAME'])) { if (!empty($_SERVER['QUERY_STRING'])) { return $_SERVER['SCRIPT_NAME'] .'?'. $_SERVER['QUERY_STRING']; } return $_SERVER['SCRIPT_NAME']; } else if (!empty($_SERVER['URL'])) { // May help IIS (not well tested) if (!empty($_SERVER['QUERY_STRING'])) { return $_SERVER['URL'] .'?'. $_SERVER['QUERY_STRING']; } return $_SERVER['URL']; } else { notify('Warning: Could not find any of these web server variables: $REQUEST_URI, $PHP_SELF, $SCRIPT_NAME or $URL'); return false; } } /** * Like {@link me()} but returns a full URL * @see me() * @return string */ function qualified_me() { global $CFG; if (!empty($CFG->wwwroot)) { $url = parse_url($CFG->wwwroot); } if (!empty($url['host'])) { $hostname = $url['host']; } else if (!empty($_SERVER['SERVER_NAME'])) { $hostname = $_SERVER['SERVER_NAME']; } else if (!empty($_ENV['SERVER_NAME'])) { $hostname = $_ENV['SERVER_NAME']; } else if (!empty($_SERVER['HTTP_HOST'])) { $hostname = $_SERVER['HTTP_HOST']; } else if (!empty($_ENV['HTTP_HOST'])) { $hostname = $_ENV['HTTP_HOST']; } else { notify('Warning: could not find the name of this server!'); return false; } if (!empty($url['port'])) { $hostname .= ':'.$url['port']; } else if (!empty($_SERVER['SERVER_PORT'])) { if ($_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) { $hostname .= ':'.$_SERVER['SERVER_PORT']; } } // TODO, this does not work in the situation described in MDL-11061, but // I don't know how to fix it. Possibly believe $CFG->wwwroot ahead of what // the server reports. if (isset($_SERVER['HTTPS'])) { $protocol = ($_SERVER['HTTPS'] == 'on') ? 'https://' : 'http://'; } else if (isset($_SERVER['SERVER_PORT'])) { # Apache2 does not export $_SERVER['HTTPS'] $protocol = ($_SERVER['SERVER_PORT'] == '443') ? 'https://' : 'http://'; } else { $protocol = 'http://'; } $url_prefix = $protocol.$hostname; return $url_prefix . me(); } /** * Class for creating and manipulating urls. * * See short write up here http://docs.moodle.org/en/Development:lib/weblib.php_moodle_url */ class moodle_url { var $scheme = '';// e.g. http var $host = ''; var $port = ''; var $user = ''; var $pass = ''; var $path = ''; var $fragment = ''; var $params = array(); //associative array of query string params /** * Pass no arguments to create a url that refers to this page. Use empty string to create empty url. * * @param string $url url default null means use this page url with no query string * empty string means empty url. * if you pass any other type of url it will be parsed into it's bits, including query string * @param array $params these params override anything in the query string where params have the same name. */ function moodle_url($url = null, $params = array()){ global $FULLME; if ($url !== ''){ if ($url === null){ $url = strip_querystring($FULLME); } $parts = parse_url($url); if ($parts === FALSE){ error('invalidurl'); } if (isset($parts['query'])){ parse_str(str_replace('&', '&', $parts['query']), $this->params); } unset($parts['query']); foreach ($parts as $key => $value){ $this->$key = $value; } $this->params($params); } } /** * Add an array of params to the params for this page. * * The added params override existing ones if they have the same name. * * @param array $params Defaults to null. If null then return value of param 'name'. * @return array Array of Params for url. */ function params($params = null) { if (!is_null($params)) { return $this->params = $params + $this->params; } else { return $this->params; } } /** * Remove all params if no arguments passed. Or else remove param $arg1, $arg2, etc. * * @param string $arg1 * @param string $arg2 * @param string $arg3 */ function remove_params(){ if ($thisargs = func_get_args()){ foreach ($thisargs as $arg){ if (isset($this->params[$arg])){ unset($this->params[$arg]); } } } else { // no args $this->params = array(); } } /** * Add a param to the params for this page. The added param overrides existing one if they * have the same name. * * @param string $paramname name * @param string $param value */ function param($paramname, $param){ $this->params = array($paramname => $param) + $this->params; } function get_query_string($overrideparams = array()){ $arr = array(); $params = $overrideparams + $this->params; foreach ($params as $key => $val){ $arr[] = urlencode($key)."=".urlencode($val); } return implode($arr, "&"); } /** * Outputs params as hidden form elements. * * @param array $exclude params to ignore * @param integer $indent indentation * @param array $overrideparams params to add to the output params, these * override existing ones with the same name. * @return string html for form elements. */ function hidden_params_out($exclude = array(), $indent = 0, $overrideparams=array()){ $tabindent = str_repeat("\t", $indent); $str = ''; $params = $overrideparams + $this->params; foreach ($params as $key => $val){ if (FALSE === array_search($key, $exclude)) { $val = s($val); $str.= "$tabindent<input type=\"hidden\" name=\"$key\" value=\"$val\" />\n"; } } return $str; } /** * Output url * * @param boolean $noquerystring whether to output page params as a query string in the url. * @param array $overrideparams params to add to the output url, these override existing ones with the same name. * @return string url */ function out($noquerystring = false, $overrideparams = array()) { $uri = $this->scheme ? $this->scheme.':'.((strtolower($this->scheme) == 'mailto') ? '':'//'): ''; $uri .= $this->user ? $this->user.($this->pass? ':'.$this->pass:'').'@':''; $uri .= $this->host ? $this->host : ''; $uri .= $this->port ? ':'.$this->port : ''; $uri .= $this->path ? $this->path : ''; if (!$noquerystring){ $uri .= (count($this->params)||count($overrideparams)) ? '?'.$this->get_query_string($overrideparams) : ''; } $uri .= $this->fragment ? '#'.$this->fragment : ''; return $uri; } /** * Output action url with sesskey * * @param boolean $noquerystring whether to output page params as a query string in the url. * @return string url */ function out_action($overrideparams = array()) { $overrideparams = array('sesskey'=> sesskey()) + $overrideparams; return $this->out(false, $overrideparams); } } /** * Determine if there is data waiting to be processed from a form * * Used on most forms in Moodle to check for data * Returns the data as an object, if it's found. * This object can be used in foreach loops without * casting because it's cast to (array) automatically * * Checks that submitted POST data exists and returns it as object. * * @param string $url not used anymore * @return mixed false or object */ function data_submitted($url='') { if (empty($_POST)) { return false; } else { return (object)$_POST; } } /** * Moodle replacement for php stripslashes() function, * works also for objects and arrays. * * The standard php stripslashes() removes ALL backslashes * even from strings - so C:\temp becomes C:temp - this isn't good. * This function should work as a fairly safe replacement * to be called on quoted AND unquoted strings (to be sure) * * @param mixed something to remove unsafe slashes from * @return mixed */ function stripslashes_safe($mixed) { // there is no need to remove slashes from int, float and bool types if (empty($mixed)) { //nothing to do... } else if (is_string($mixed)) { if (ini_get_bool('magic_quotes_sybase')) { //only unescape single quotes $mixed = str_replace("''", "'", $mixed); } else { //the rest, simple and double quotes and backslashes $mixed = str_replace("\\'", "'", $mixed); $mixed = str_replace('\\"', '"', $mixed); $mixed = str_replace('\\\\', '\\', $mixed); } } else if (is_array($mixed)) { foreach ($mixed as $key => $value) { $mixed[$key] = stripslashes_safe($value); } } else if (is_object($mixed)) { $vars = get_object_vars($mixed); foreach ($vars as $key => $value) { $mixed->$key = stripslashes_safe($value); } } return $mixed; } /** * Recursive implementation of stripslashes() * * This function will allow you to strip the slashes from a variable. * If the variable is an array or object, slashes will be stripped * from the items (or properties) it contains, even if they are arrays * or objects themselves. * * @param mixed the variable to remove slashes from * @return mixed */ function stripslashes_recursive($var) { if (is_object($var)) { $new_var = new object(); $properties = get_object_vars($var); foreach($properties as $property => $value) { $new_var->$property = stripslashes_recursive($value); } } else if(is_array($var)) { $new_var = array(); foreach($var as $property => $value) { $new_var[$property] = stripslashes_recursive($value); } } else if(is_string($var)) { $new_var = stripslashes($var); } else { $new_var = $var; } return $new_var; } /** * Recursive implementation of addslashes() * * This function will allow you to add the slashes from a variable. * If the variable is an array or object, slashes will be added * to the items (or properties) it contains, even if they are arrays * or objects themselves. * * @param mixed the variable to add slashes from * @return mixed */ function addslashes_recursive($var) { if (is_object($var)) { $new_var = new object(); $properties = get_object_vars($var); foreach($properties as $property => $value) { $new_var->$property = addslashes_recursive($value); } } else if (is_array($var)) { $new_var = array(); foreach($var as $property => $value) { $new_var[$property] = addslashes_recursive($value); } } else if (is_string($var)) { $new_var = addslashes($var); } else { // nulls, integers, etc. $new_var = $var; } return $new_var; } /** * Given some normal text this function will break up any * long words to a given size by inserting the given character * * It's multibyte savvy and doesn't change anything inside html tags. * * @param string $string the string to be modified * @param int $maxsize maximum length of the string to be returned * @param string $cutchar the string used to represent word breaks * @return string */ function break_up_long_words($string, $maxsize=20, $cutchar=' ') { /// Loading the textlib singleton instance. We are going to need it. $textlib = textlib_get_instance(); /// First of all, save all the tags inside the text to skip them $tags = array(); filter_save_tags($string,$tags); /// Process the string adding the cut when necessary $output = ''; $length = $textlib->strlen($string); $wordlength = 0; for ($i=0; $i<$length; $i++) { $char = $textlib->substr($string, $i, 1); if ($char == ' ' or $char == "\t" or $char == "\n" or $char == "\r" or $char == "<" or $char == ">") { $wordlength = 0; } else { $wordlength++; if ($wordlength > $maxsize) { $output .= $cutchar; $wordlength = 0; } } $output .= $char; } /// Finally load the tags back again if (!empty($tags)) { $output = str_replace(array_keys($tags), $tags, $output); } return $output; } /** * This does a search and replace, ignoring case * This function is only used for versions of PHP older than version 5 * which do not have a native version of this function. * Taken from the PHP manual, by bradhuizenga @ softhome.net * * @param string $find the string to search for * @param string $replace the string to replace $find with * @param string $string the string to search through * return string */ if (!function_exists('str_ireplace')) { /// Only exists in PHP 5 function str_ireplace($find, $replace, $string) { if (!is_array($find)) { $find = array($find); } if(!is_array($replace)) { if (!is_array($find)) { $replace = array($replace); } else { // this will duplicate the string into an array the size of $find $c = count($find); $rString = $replace; unset($replace); for ($i = 0; $i < $c; $i++) { $replace[$i] = $rString; } } } foreach ($find as $fKey => $fItem) { $between = explode(strtolower($fItem),strtolower($string)); $pos = 0; foreach($between as $bKey => $bItem) { $between[$bKey] = substr($string,$pos,strlen($bItem)); $pos += strlen($bItem) + strlen($fItem); } $string = implode($replace[$fKey],$between); } return ($string); } } /** * Locate the position of a string in another string * * This function is only used for versions of PHP older than version 5 * which do not have a native version of this function. * Taken from the PHP manual, by dmarsh @ spscc.ctc.edu * * @param string $haystack The string to be searched * @param string $needle The string to search for * @param int $offset The position in $haystack where the search should begin. */ if (!function_exists('stripos')) { /// Only exists in PHP 5 function stripos($haystack, $needle, $offset=0) { return strpos(strtoupper($haystack), strtoupper($needle), $offset); } } /** * This function will print a button/link/etc. form element * that will work on both Javascript and non-javascript browsers. * Relies on the Javascript function openpopup in javascript.php * * All parameters default to null, only $type and $url are mandatory. * * $url must be relative to home page eg /mod/survey/stuff.php * @param string $url Web link relative to home page * @param string $name Name to be assigned to the popup window (this is used by * client-side scripts to "talk" to the popup window) * @param string $linkname Text to be displayed as web link * @param int $height Height to assign to popup window * @param int $width Height to assign to popup window * @param string $title Text to be displayed as popup page title * @param string $options List of additional options for popup window * @param string $return If true, return as a string, otherwise print * @param string $id id added to the element * @param string $class class added to the element * @return string * @uses $CFG */ function element_to_popup_window ($type=null, $url=null, $name=null, $linkname=null, $height=400, $width=500, $title=null, $options=null, $return=false, $id=null, $class=null) { if (is_null($url)) { debugging('You must give the url to display in the popup. URL is missing - can\'t create popup window.', DEBUG_DEVELOPER); } global $CFG; if ($options == 'none') { // 'none' is legacy, should be removed in v2.0 $options = null; } // add some sane default options for popup windows if (!$options) { $options = 'menubar=0,location=0,scrollbars,resizable'; } if ($width) { $options .= ',width='. $width; } if ($height) { $options .= ',height='. $height; } if ($id) { $id = ' id="'.$id.'" '; } if ($class) { $class = ' class="'.$class.'" '; } if ($name) { $_name = $name; if (($name = preg_replace("/\s/", '_', $name)) != $_name) { debugging('The $name of a popup window shouldn\'t contain spaces - string modified. '. $_name .' changed to '. $name, DEBUG_DEVELOPER); } } else { $name = 'popup'; } // get some default string, using the localized version of legacy defaults if (is_null($linkname) || $linkname === '') { $linkname = get_string('clickhere'); } if (!$title) { $title = get_string('popupwindowname'); } $fullscreen = 0; // must be passed to openpopup $element = ''; switch ($type) { case 'button' : $element = '<input type="button" name="'. $name .'" title="'. $title .'" value="'. $linkname .'" '. $id . $class . "onclick=\"return openpopup('$url', '$name', '$options', $fullscreen);\" />\n"; break; case 'link' : // some log url entries contain _SERVER[HTTP_REFERRER] in which case wwwroot is already there. if (!(strpos($url,$CFG->wwwroot) === false)) { $url = substr($url, strlen($CFG->wwwroot)); } $element = '<a title="'. s(strip_tags($title)) .'" href="'. $CFG->wwwroot . $url .'" '. "$CFG->frametarget onclick=\"this.target='$name'; return openpopup('$url', '$name', '$options', $fullscreen);\">$linkname</a>"; break; default : error('Undefined element - can\'t create popup window.'); break; } if ($return) { return $element; } else { echo $element; } } /** * Creates and displays (or returns) a link to a popup window, using element_to_popup_window function. * * @return string html code to display a link to a popup window. * @see element_to_popup_window() */ function link_to_popup_window ($url, $name=null, $linkname=null, $height=400, $width=500, $title=null, $options=null, $return=false) { return element_to_popup_window('link', $url, $name, $linkname, $height, $width, $title, $options, $return, null, null); } /** * Creates and displays (or returns) a buttons to a popup window, using element_to_popup_window function. * * @return string html code to display a button to a popup window. * @see element_to_popup_window() */ function button_to_popup_window ($url, $name=null, $linkname=null, $height=400, $width=500, $title=null, $options=null, $return=false, $id=null, $class=null) { return element_to_popup_window('button', $url, $name, $linkname, $height, $width, $title, $options, $return, $id, $class); } /** * Prints a simple button to close a window * @param string $name name of the window to close * @param boolean $return whether this function should return a string or output it * @return string if $return is true, nothing otherwise */ function close_window_button($name='closewindow', $return=false) { global $CFG; $output = ''; $output .= '<div class="closewindow">' . "\n"; $output .= '<form action="#"><div>'; $output .= '<input type="button" onclick="self.close();" value="'.get_string($name).'" />'; $output .= '</div></form>'; $output .= '</div>' . "\n"; if ($return) { return $output; } else { echo $output; } } /* * Try and close the current window immediately using Javascript * @param int $delay the delay in seconds before closing the window */ function close_window($delay=0) { ?> <script type="text/javascript"> //<![CDATA[ function close_this_window() { self.close(); } setTimeout("close_this_window()", <?php echo $delay * 1000 ?>); //]]> </script> <noscript><center> <?php print_string('pleaseclose') ?> </center></noscript> <?php die; } /** * Given an array of values, output the HTML for a select element with those options. * Normally, you only need to use the first few parameters. * * @param array $options The options to offer. An array of the form * $options[{value}] = {text displayed for that option}; * @param string $name the name of this form control, as in <select name="..." ... * @param string $selected the option to select initially, default none. * @param string $nothing The label for the 'nothing is selected' option. Defaults to get_string('choose'). * Set this to '' if you don't want a 'nothing is selected' option. * @param string $script in not '', then this is added to the <select> element as an onchange handler. * @param string $nothingvalue The value corresponding to the $nothing option. Defaults to 0. * @param boolean $return if false (the default) the the output is printed directly, If true, the * generated HTML is returned as a string. * @param boolean $disabled if true, the select is generated in a disabled state. Default, false. * @param int $tabindex if give, sets the tabindex attribute on the <select> element. Default none. * @param string $id value to use for the id attribute of the <select> element. If none is given, * then a suitable one is constructed. * @param mixed $listbox if false, display as a dropdown menu. If true, display as a list box. * By default, the list box will have a number of rows equal to min(10, count($options)), but if * $listbox is an integer, that number is used for size instead. * @param boolean $multiple if true, enable multiple selections, else only 1 item can be selected. Used * when $listbox display is enabled * @param string $class value to use for the class attribute of the <select> element. If none is given, * then a suitable one is constructed. */ function choose_from_menu ($options, $name, $selected='', $nothing='choose', $script='', $nothingvalue='0', $return=false, $disabled=false, $tabindex=0, $id='', $listbox=false, $multiple=false, $class='') { if ($nothing == 'choose') { $nothing = get_string('choose') .'...'; } $attributes = ($script) ? 'onchange="'. $script .'"' : ''; if ($disabled) { $attributes .= ' disabled="disabled"'; } if ($tabindex) { $attributes .= ' tabindex="'.$tabindex.'"'; } if ($id ==='') { $id = 'menu'.$name; // name may contaion [], which would make an invalid id. e.g. numeric question type editing form, assignment quickgrading $id = str_replace('[', '', $id); $id = str_replace(']', '', $id); } if ($class ==='') { $class = 'menu'.$name; // name may contaion [], which would make an invalid class. e.g. numeric question type editing form, assignment quickgrading $class = str_replace('[', '', $class); $class = str_replace(']', '', $class); } $class = 'select ' . $class; /// Add 'select' selector always if ($listbox) { if (is_integer($listbox)) { $size = $listbox; } else { $numchoices = count($options); if ($nothing) { $numchoices += 1; } $size = min(10, $numchoices); } $attributes .= ' size="' . $size . '"'; if ($multiple) { $attributes .= ' multiple="multiple"'; } } $output = '<select id="'. $id .'" class="'. $class .'" name="'. $name .'" '. $attributes .'>' . "\n"; if ($nothing) { $output .= ' <option value="'. s($nothingvalue) .'"'. "\n"; if ($nothingvalue === $selected) { $output .= ' selected="selected"'; } $output .= '>'. $nothing .'</option>' . "\n"; } if (!empty($options)) { foreach ($options as $value => $label) { $output .= ' <option value="'. s($value) .'"'; if ((string)$value == (string)$selected || (is_array($selected) && in_array($value, $selected))) { $output .= ' selected="selected"'; } if ($label === '') { $output .= '>'. $value .'</option>' . "\n"; } else { $output .= '>'. $label .'</option>' . "\n"; } } } $output .= '</select>' . "\n"; if ($return) { return $output; } else { echo $output; } } /** * Choose value 0 or 1 from a menu with options 'No' and 'Yes'. * Other options like choose_from_menu. * @param string $name * @param string $selected * @param string $string (defaults to '') * @param boolean $return whether this function should return a string or output it (defaults to false) * @param boolean $disabled (defaults to false) * @param int $tabindex */ function choose_from_menu_yesno($name, $selected, $script = '', $return = false, $disabled = false, $tabindex = 0) { return choose_from_menu(array(get_string('no'), get_string('yes')), $name, $selected, '', $script, '0', $return, $disabled, $tabindex); } /** * Just like choose_from_menu, but takes a nested array (2 levels) and makes a dropdown menu * including option headings with the first level. */ function choose_from_menu_nested($options,$name,$selected='',$nothing='choose',$script = '', $nothingvalue=0,$return=false,$disabled=false,$tabindex=0) { if ($nothing == 'choose') { $nothing = get_string('choose') .'...'; } $attributes = ($script) ? 'onchange="'. $script .'"' : ''; if ($disabled) { $attributes .= ' disabled="disabled"'; } if ($tabindex) { $attributes .= ' tabindex="'.$tabindex.'"'; } $output = '<select id="menu'.$name.'" name="'. $name .'" '. $attributes .'>' . "\n"; if ($nothing) { $output .= ' <option value="'. $nothingvalue .'"'. "\n"; if ($nothingvalue === $selected) { $output .= ' selected="selected"'; } $output .= '>'. $nothing .'</option>' . "\n"; } if (!empty($options)) { foreach ($options as $section => $values) { $output .= ' <optgroup label="'. s(strip_tags(format_string($section))) .'">'."\n"; foreach ($values as $value => $label) { $output .= ' <option value="'. format_string($value) .'"'; if ((string)$value == (string)$selected) { $output .= ' selected="selected"'; } if ($label === '') { $output .= '>'. $value .'</option>' . "\n"; } else { $output .= '>'. $label .'</option>' . "\n"; } } $output .= ' </optgroup>'."\n"; } } $output .= '</select>' . "\n"; if ($return) { return $output; } else { echo $output; } } /** * Given an array of values, creates a group of radio buttons to be part of a form * * @param array $options An array of value-label pairs for the radio group (values as keys) * @param string $name Name of the radiogroup (unique in the form) * @param string $checked The value that is already checked */ function choose_from_radio ($options, $name, $checked='', $return=false) { static $idcounter = 0; if (!$name) { $name = 'unnamed'; } $output = '<span class="radiogroup '.$name."\">\n"; if (!empty($options)) { $currentradio = 0; foreach ($options as $value => $label) { $htmlid = 'auto-rb'.sprintf('%04d', ++$idcounter); $output .= ' <span class="radioelement '.$name.' rb'.$currentradio."\">"; $output .= '<input name="'.$name.'" id="'.$htmlid.'" type="radio" value="'.$value.'"'; if ($value == $checked) { $output .= ' checked="checked"'; } if ($label === '') { $output .= ' /> <label for="'.$htmlid.'">'. $value .'</label></span>' . "\n"; } else { $output .= ' /> <label for="'.$htmlid.'">'. $label .'</label></span>' . "\n"; } $currentradio = ($currentradio + 1) % 2; } } $output .= '</span>' . "\n"; if ($return) { return $output; } else { echo $output; } } /** Display an standard html checkbox with an optional label * * @param string $name The name of the checkbox * @param string $value The valus that the checkbox will pass when checked * @param boolean $checked The flag to tell the checkbox initial state * @param string $label The label to be showed near the checkbox * @param string $alt The info to be inserted in the alt tag */ function print_checkbox ($name, $value, $checked = true, $label = '', $alt = '', $script='',$return=false) { static $idcounter = 0; if (!$name) { $name = 'unnamed'; } if ($alt) { $alt = strip_tags($alt); } else { $alt = 'checkbox'; } if ($checked) { $strchecked = ' checked="checked"'; } else { $strchecked = ''; } $htmlid = 'auto-cb'.sprintf('%04d', ++$idcounter); $output = '<span class="checkbox '.$name."\">"; $output .= '<input name="'.$name.'" id="'.$htmlid.'" type="checkbox" value="'.$value.'" alt="'.$alt.'"'.$strchecked.' '.((!empty($script)) ? ' onclick="'.$script.'" ' : '').' />'; if(!empty($label)) { $output .= ' <label for="'.$htmlid.'">'.$label.'</label>'; } $output .= '</span>'."\n"; if (empty($return)) { echo $output; } else { return $output; } } /** Display an standard html text field with an optional label * * @param string $name The name of the text field * @param string $value The value of the text field * @param string $label The label to be showed near the text field * @param string $alt The info to be inserted in the alt tag */ function print_textfield ($name, $value, $alt = '',$size=50,$maxlength=0, $return=false) { static $idcounter = 0; if (empty($name)) { $name = 'unnamed'; } if (empty($alt)) { $alt = 'textfield'; } if (!empty($maxlength)) { $maxlength = ' maxlength="'.$maxlength.'" '; } $htmlid = 'auto-tf'.sprintf('%04d', ++$idcounter); $output = '<span class="textfield '.$name."\">"; $output .= '<input name="'.$name.'" id="'.$htmlid.'" type="text" value="'.$value.'" size="'.$size.'" '.$maxlength.' alt="'.$alt.'" />'; $output .= '</span>'."\n"; if (empty($return)) { echo $output; } else { return $output; } } /** * Implements a complete little popup form * * @uses $CFG * @param string $common The URL up to the point of the variable that changes * @param array $options Alist of value-label pairs for the popup list * @param string $formid Id must be unique on the page (originaly $formname) * @param string $selected The option that is already selected * @param string $nothing The label for the "no choice" option * @param string $help The name of a help page if help is required * @param string $helptext The name of the label for the help button * @param boolean $return Indicates whether the function should return the text * as a string or echo it directly to the page being rendered * @param string $targetwindow The name of the target page to open the linked page in. * @param string $selectlabel Text to place in a [label] element - preferred for accessibility. * @param array $optionsextra TODO, an array? * @param mixed $gobutton If set, this turns off the JavaScript and uses a 'go' * button instead (as is always included for JS-disabled users). Set to true * for a literal 'Go' button, or to a string to change the name of the button. * @return string If $return is true then the entire form is returned as a string. * @todo Finish documenting this function<br> */ function popup_form($common, $options, $formid, $selected='', $nothing='choose', $help='', $helptext='', $return=false, $targetwindow='self', $selectlabel='', $optionsextra=NULL, $gobutton=NULL) { global $CFG; static $go, $choose; /// Locally cached, in case there's lots on a page if (empty($options)) { return ''; } if (!isset($go)) { $go = get_string('go'); } if ($nothing == 'choose') { if (!isset($choose)) { $choose = get_string('choose'); } $nothing = $choose.'...'; } // changed reference to document.getElementById('id_abc') instead of document.abc // MDL-7861 $output = '<form action="'.$CFG->wwwroot.'/course/jumpto.php"'. ' method="get" '. $CFG->frametarget. ' id="'.$formid.'"'. ' class="popupform">'; if ($help) { $button = helpbutton($help, $helptext, 'moodle', true, false, '', true); } else { $button = ''; } if ($selectlabel) { $selectlabel = '<label for="'.$formid.'_jump">'.$selectlabel.'</label>'; } if ($gobutton) { // Using the no-JavaScript version $javascript = ''; } else if (check_browser_version('MSIE') || (check_browser_version('Opera') && !check_browser_operating_system("Linux"))) { //IE and Opera fire the onchange when ever you move into a dropdown list with the keyboard. //onfocus will call a function inside dropdown.js. It fixes this IE/Opera behavior. //Note: There is a bug on Opera+Linux with the javascript code (first mouse selection is inactive), //so we do not fix the Opera behavior on Linux $javascript = ' onfocus="initSelect(\''.$formid.'\','.$targetwindow.')"'; } else { //Other browser $javascript = ' onchange="'.$targetwindow. '.location=document.getElementById(\''.$formid. '\').jump.options[document.getElementById(\''. $formid.'\').jump.selectedIndex].value;"'; } $output .= '<div>'.$selectlabel.$button.'<select id="'.$formid.'_jump" name="jump"'.$javascript.'>'."\n"; if ($nothing != '') { $output .= " <option value=\"javascript:void(0)\">$nothing</option>\n"; } $inoptgroup = false; foreach ($options as $value => $label) { if ($label == '--') { /// we are ending previous optgroup /// Check to see if we already have a valid open optgroup /// XHTML demands that there be at least 1 option within an optgroup if ($inoptgroup and (count($optgr) > 1) ) { $output .= implode('', $optgr); $output .= ' </optgroup>'; } $optgr = array(); $inoptgroup = false; continue; } else if (substr($label,0,2) == '--') { /// we are starting a new optgroup /// Check to see if we already have a valid open optgroup /// XHTML demands that there be at least 1 option within an optgroup if ($inoptgroup and (count($optgr) > 1) ) { $output .= implode('', $optgr); $output .= ' </optgroup>'; } unset($optgr); $optgr = array(); $optgr[] = ' <optgroup label="'. s(format_string(substr($label,2))) .'">'; // Plain labels $inoptgroup = true; /// everything following will be in an optgroup continue; } else { if (!empty($CFG->usesid) && !isset($_COOKIE[session_name()])) { $url=sid_process_url( $common . $value ); } else { $url=$common . $value; } $optstr = ' <option value="' . $url . '"'; if ($value == $selected) { $optstr .= ' selected="selected"'; } if (!empty($optionsextra[$value])) { $optstr .= ' '.$optionsextra[$value]; } if ($label) { $optstr .= '>'. $label .'</option>' . "\n"; } else { $optstr .= '>'. $value .'</option>' . "\n"; } if ($inoptgroup) { $optgr[] = $optstr; } else { $output .= $optstr; } } } /// catch the final group if not closed if ($inoptgroup and count($optgr) > 1) { $output .= implode('', $optgr); $output .= ' </optgroup>'; } $output .= '</select>'; $output .= '<input type="hidden" name="sesskey" value="'.sesskey().'" />'; if ($gobutton) { $output .= '<input type="submit" value="'. ($gobutton===true ? $go : $gobutton).'" />'; } else { $output .= '<div id="noscript'.$formid.'" style="display: inline;">'; $output .= '<input type="submit" value="'.$go.'" /></div>'; $output .= '<script type="text/javascript">'. "\n//<![CDATA[\n". 'document.getElementById("noscript'.$formid.'").style.display = "none";'. "\n//]]>\n".'</script>'; } $output .= '</div></form>'; if ($return) { return $output; } else { echo $output; } } /** * Prints some red text * * @param string $error The text to be displayed in red */ function formerr($error) { if (!empty($error)) { echo '<span class="error">'. $error .'</span>'; } } /** * Validates an email to make sure it makes sense. * * @param string $address The email address to validate. * @return boolean */ function validate_email($address) { return (ereg('^[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+'. '(\.[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+)*'. '@'. '[-!#$%&\'*+\\/0-9=?A-Z^_`a-z{|}~]+\.'. '[-!#$%&\'*+\\./0-9=?A-Z^_`a-z{|}~]+$', $address)); } /** * Extracts file argument either from file parameter or PATH_INFO * * @param string $scriptname name of the calling script * @return string file path (only safe characters) */ function get_file_argument($scriptname) { global $_SERVER; $relativepath = FALSE; // first try normal parameter (compatible method == no relative links!) $relativepath = optional_param('file', FALSE, PARAM_PATH); if ($relativepath === '/testslasharguments') { echo 'test -1 : Incorrect use - try "file.php/testslasharguments" instead'; //indicate fopen/fread works for health center die; } // then try extract file from PATH_INFO (slasharguments method) if (!$relativepath and !empty($_SERVER['PATH_INFO'])) { $path_info = $_SERVER['PATH_INFO']; // check that PATH_INFO works == must not contain the script name if (!strpos($path_info, $scriptname)) { $relativepath = clean_param(rawurldecode($path_info), PARAM_PATH); if ($relativepath === '/testslasharguments') { echo 'test 1 : Slasharguments test passed. Server confguration is compatible with file.php/1/pic.jpg slashargument setting.'; //indicate ok for health center die; } } } // now if both fail try the old way // (for compatibility with misconfigured or older buggy php implementations) if (!$relativepath) { $arr = explode($scriptname, me()); if (!empty($arr[1])) { $path_info = strip_querystring($arr[1]); $relativepath = clean_param(rawurldecode($path_info), PARAM_PATH); if ($relativepath === '/testslasharguments') { echo 'test 2 : Slasharguments test passed (compatibility hack). Server confguration may be compatible with file.php/1/pic.jpg slashargument setting'; //indicate ok for health center die; } } } return $relativepath; } /** * Searches the current environment variables for some slash arguments * * @param string $file ? * @todo Finish documenting this function */ function get_slash_arguments($file='file.php') { if (!$string = me()) { return false; } $pathinfo = explode($file, $string); if (!empty($pathinfo[1])) { return addslashes($pathinfo[1]); } else { return false; } } /** * Extracts arguments from "/foo/bar/something" * eg http://mysite.com/script.php/foo/bar/something * * @param string $string ? * @param int $i ? * @return array|string * @todo Finish documenting this function */ function parse_slash_arguments($string, $i=0) { if (detect_munged_arguments($string)) { return false; } $args = explode('/', $string); if ($i) { // return just the required argument return $args[$i]; } else { // return the whole array array_shift($args); // get rid of the empty first one return $args; } } /** * Just returns an array of text formats suitable for a popup menu * * @uses FORMAT_MOODLE * @uses FORMAT_HTML * @uses FORMAT_PLAIN * @uses FORMAT_MARKDOWN * @return array */ function format_text_menu() { return array (FORMAT_MOODLE => get_string('formattext'), FORMAT_HTML => get_string('formathtml'), FORMAT_PLAIN => get_string('formatplain'), FORMAT_MARKDOWN => get_string('formatmarkdown')); } /** * Given text in a variety of format codings, this function returns * the text as safe HTML. * * This function should mainly be used for long strings like posts, * answers, glossary items etc. For short strings @see format_string(). * * @uses $CFG * @uses FORMAT_MOODLE * @uses FORMAT_HTML * @uses FORMAT_PLAIN * @uses FORMAT_WIKI * @uses FORMAT_MARKDOWN * @param string $text The text to be formatted. This is raw text originally from user input. * @param int $format Identifier of the text format to be used * (FORMAT_MOODLE, FORMAT_HTML, FORMAT_PLAIN, FORMAT_WIKI, FORMAT_MARKDOWN) * @param array $options ? * @param int $courseid ? * @return string * @todo Finish documenting this function */ function format_text($text, $format=FORMAT_MOODLE, $options=NULL, $courseid=NULL) { global $CFG, $COURSE; static $croncache = array(); if ($text === '') { return ''; // no need to do any filters and cleaning } if (!isset($options->trusttext)) { $options->trusttext = false; } if (!isset($options->noclean)) { $options->noclean=false; } if (!isset($options->nocache)) { $options->nocache=false; } if (!isset($options->smiley)) { $options->smiley=true; } if (!isset($options->filter)) { $options->filter=true; } if (!isset($options->para)) { $options->para=true; } if (!isset($options->newlines)) { $options->newlines=true; } if (empty($courseid)) { $courseid = $COURSE->id; } if (!empty($CFG->cachetext) and empty($options->nocache)) { $time = time() - $CFG->cachetext; $md5key = md5($text.'-'.(int)$courseid.'-'.current_language().'-'.(int)$format.(int)$options->trusttext.(int)$options->noclean.(int)$options->smiley.(int)$options->filter.(int)$options->para.(int)$options->newlines); if (defined('FULLME') and FULLME == 'cron') { if (isset($croncache[$md5key])) { return $croncache[$md5key]; } } if ($oldcacheitem = get_record_sql('SELECT * FROM '.$CFG->prefix.'cache_text WHERE md5key = \''.$md5key.'\'', true)) { if ($oldcacheitem->timemodified >= $time) { if (defined('FULLME') and FULLME == 'cron') { if (count($croncache) > 150) { reset($croncache); $key = key($croncache); unset($croncache[$key]); } $croncache[$md5key] = $oldcacheitem->formattedtext; } return $oldcacheitem->formattedtext; } } } // trusttext overrides the noclean option! if ($options->trusttext) { if (trusttext_present($text)) { $text = trusttext_strip($text); if (!empty($CFG->enabletrusttext)) { $options->noclean = true; } else { $options->noclean = false; } } else { $options->noclean = false; } } else if (!debugging('', DEBUG_DEVELOPER)) { // strip any forgotten trusttext in non-developer mode // do not forget to disable text cache when debugging trusttext!! $text = trusttext_strip($text); } $CFG->currenttextiscacheable = true; // Default status - can be changed by any filter switch ($format) { case FORMAT_HTML: if ($options->smiley) { replace_smilies($text); } if (!$options->noclean) { $text = clean_text($text, FORMAT_HTML); } if ($options->filter) { $text = filter_text($text, $courseid); } break; case FORMAT_PLAIN: $text = s($text); // cleans dangerous JS $text = rebuildnolinktag($text); $text = str_replace(' ', ' ', $text); $text = nl2br($text); break; case FORMAT_WIKI: // this format is deprecated $text = '<p>NOTICE: Wiki-like formatting has been removed from Moodle. You should not be seeing this message as all texts should have been converted to Markdown format instead. Please post a bug report to http://moodle.org/bugs with information about where you saw this message.</p>'.s($text); break; case FORMAT_MARKDOWN: $text = markdown_to_html($text); if ($options->smiley) { replace_smilies($text); } if (!$options->noclean) { $text = clean_text($text, FORMAT_HTML); } if ($options->filter) { $text = filter_text($text, $courseid); } break; default: // FORMAT_MOODLE or anything else $text = text_to_html($text, $options->smiley, $options->para, $options->newlines); if (!$options->noclean) { $text = clean_text($text, FORMAT_HTML); } if ($options->filter) { $text = filter_text($text, $courseid); } break; } if (empty($options->nocache) and !empty($CFG->cachetext) and $CFG->currenttextiscacheable) { if (defined('FULLME') and FULLME == 'cron') { // special static cron cache - no need to store it in db if its not already there if (count($croncache) > 150) { reset($croncache); $key = key($croncache); unset($croncache[$key]); } $croncache[$md5key] = $text; return $text; } $newcacheitem = new object(); $newcacheitem->md5key = $md5key; $newcacheitem->formattedtext = addslashes($text); $newcacheitem->timemodified = time(); if ($oldcacheitem) { // See bug 4677 for discussion $newcacheitem->id = $oldcacheitem->id; @update_record('cache_text', $newcacheitem); // Update existing record in the cache table // It's unlikely that the cron cache cleaner could have // deleted this entry in the meantime, as it allows // some extra time to cover these cases. } else { @insert_record('cache_text', $newcacheitem); // Insert a new record in the cache table // Again, it's possible that another user has caused this // record to be created already in the time that it took // to traverse this function. That's OK too, as the // call above handles duplicate entries, and eventually // the cron cleaner will delete them. } } return $text; } /** Converts the text format from the value to the 'internal' * name or vice versa. $key can either be the value or the name * and you get the other back. * * @param mixed int 0-4 or string one of 'moodle','html','plain','markdown' * @return mixed as above but the other way around! */ function text_format_name( $key ) { $lookup = array(); $lookup[FORMAT_MOODLE] = 'moodle'; $lookup[FORMAT_HTML] = 'html'; $lookup[FORMAT_PLAIN] = 'plain'; $lookup[FORMAT_MARKDOWN] = 'markdown'; $value = "error"; if (!is_numeric($key)) { $key = strtolower( $key ); $value = array_search( $key, $lookup ); } else { if (isset( $lookup[$key] )) { $value = $lookup[ $key ]; } } return $value; } /** * Resets all data related to filters, called during upgrade or when filter settings change. * @return void */ function reset_text_filters_cache() { global $CFG; delete_records('cache_text'); $purifdir = $CFG->dataroot.'/cache/htmlpurifier'; remove_dir($purifdir, true); } /** Given a simple string, this function returns the string * processed by enabled string filters if $CFG->filterall is enabled * * This function should be used to print short strings (non html) that * need filter processing e.g. activity titles, post subjects, * glossary concepts. * * @param string $string The string to be filtered. * @param boolean $striplinks To strip any link in the result text (Moodle 1.8 default changed from false to true! MDL-8713) * @param int $courseid Current course as filters can, potentially, use it * @return string */ function format_string ($string, $striplinks=true, $courseid=NULL ) { global $CFG, $COURSE; //We'll use a in-memory cache here to speed up repeated strings static $strcache = false; if ($strcache === false or count($strcache) > 2000 ) { // this number might need some tuning to limit memory usage in cron $strcache = array(); } //init course id if (empty($courseid)) { $courseid = $COURSE->id; } //Calculate md5 $md5 = md5($string.'<+>'.$striplinks.'<+>'.$courseid.'<+>'.current_language()); //Fetch from cache if possible if (isset($strcache[$md5])) { return $strcache[$md5]; } // First replace all ampersands not followed by html entity code $string = preg_replace("/\&(?![a-zA-Z0-9#]{1,8};)/", "&", $string); if (!empty($CFG->filterall)) { $string = filter_string($string, $courseid); } // If the site requires it, strip ALL tags from this string if (!empty($CFG->formatstringstriptags)) { $string = strip_tags($string); } else { // Otherwise strip just links if that is required (default) if ($striplinks) { //strip links in string $string = preg_replace('/(<a\s[^>]+?>)(.+?)(<\/a>)/is','$2',$string); } $string = clean_text($string); } //Store to cache $strcache[$md5] = $string; return $string; } /** * Given text in a variety of format codings, this function returns * the text as plain text suitable for plain email. * * @uses FORMAT_MOODLE * @uses FORMAT_HTML * @uses FORMAT_PLAIN * @uses FORMAT_WIKI * @uses FORMAT_MARKDOWN * @param string $text The text to be formatted. This is raw text originally from user input. * @param int $format Identifier of the text format to be used * (FORMAT_MOODLE, FORMAT_HTML, FORMAT_PLAIN, FORMAT_WIKI, FORMAT_MARKDOWN) * @return string */ function format_text_email($text, $format) { switch ($format) { case FORMAT_PLAIN: return $text; break; case FORMAT_WIKI: // there should not be any of these any more! /// This expression turns links into something nice in a text format. (Russell Jungwirth) /// From: http://php.net/manual/en/function.eregi-replace.php and simplified $text = eregi_replace('(<a [^<]*href=["|\']?([^ "\']*)["|\']?[^>]*>([^<]*)</a>)','\\3 [ \\2 ]', $text); return strtr(strip_tags($text), array_flip(get_html_translation_table(HTML_ENTITIES))); break; case FORMAT_HTML: return html_to_text($text); break; case FORMAT_MOODLE: case FORMAT_MARKDOWN: default: $text = eregi_replace('(<a [^<]*href=["|\']?([^ "\']*)["|\']?[^>]*>([^<]*)</a>)','\\3 [ \\2 ]', $text); return strtr(strip_tags($text), array_flip(get_html_translation_table(HTML_ENTITIES))); break; } } /** * Given some text in HTML format, this function will pass it * through any filters that have been defined in $CFG->textfilterx * The variable defines a filepath to a file containing the * filter function. The file must contain a variable called * $textfilter_function which contains the name of the function * with $courseid and $text parameters * * @param string $text The text to be passed through format filters * @param int $courseid ? * @return string * @todo Finish documenting this function */ function filter_text($text, $courseid=NULL) { global $CFG, $COURSE; if (empty($courseid)) { $courseid = $COURSE->id; // (copied from format_text) } if (!empty($CFG->textfilters)) { require_once($CFG->libdir.'/filterlib.php'); $textfilters = explode(',', $CFG->textfilters); foreach ($textfilters as $textfilter) { if (is_readable($CFG->dirroot .'/'. $textfilter .'/filter.php')) { include_once($CFG->dirroot .'/'. $textfilter .'/filter.php'); $functionname = basename($textfilter).'_filter'; if (function_exists($functionname)) { $text = $functionname($courseid, $text); } } } } /// <nolink> tags removed for XHTML compatibility $text = str_replace('<nolink>', '', $text); $text = str_replace('</nolink>', '', $text); return $text; } /** * Given a string (short text) in HTML format, this function will pass it * through any filters that have been defined in $CFG->stringfilters * The variable defines a filepath to a file containing the * filter function. The file must contain a variable called * $textfilter_function which contains the name of the function * with $courseid and $text parameters * * @param string $string The text to be passed through format filters * @param int $courseid The id of a course * @return string */ function filter_string($string, $courseid=NULL) { global $CFG, $COURSE; if (empty($CFG->textfilters)) { // All filters are disabled anyway so quit return $string; } if (empty($courseid)) { $courseid = $COURSE->id; } require_once($CFG->libdir.'/filterlib.php'); if (isset($CFG->stringfilters)) { // We have a predefined list to use, great! if (empty($CFG->stringfilters)) { // but it's blank, so finish now return $string; } $stringfilters = explode(',', $CFG->stringfilters); // ..use the list we have } else { // Otherwise try to derive a list from textfilters if (strpos($CFG->textfilters, 'filter/multilang') !== false) { // Multilang is here $stringfilters = array('filter/multilang'); // Let's use just that $CFG->stringfilters = 'filter/multilang'; // Save it for next time through } else { $CFG->stringfilters = ''; // Save the result and return return $string; } } foreach ($stringfilters as $stringfilter) { if (is_readable($CFG->dirroot .'/'. $stringfilter .'/filter.php')) { include_once($CFG->dirroot .'/'. $stringfilter .'/filter.php'); $functionname = basename($stringfilter).'_filter'; if (function_exists($functionname)) { $string = $functionname($courseid, $string); } } } /// <nolink> tags removed for XHTML compatibility $string = str_replace('<nolink>', '', $string); $string = str_replace('</nolink>', '', $string); return $string; } /** * Is the text marked as trusted? * * @param string $text text to be searched for TRUSTTEXT marker * @return boolean */ function trusttext_present($text) { if (strpos($text, TRUSTTEXT) !== FALSE) { return true; } else { return false; } } /** * This funtion MUST be called before the cleaning or any other * function that modifies the data! We do not know the origin of trusttext * in database, if it gets there in tweaked form we must not convert it * to supported form!!! * * Please be carefull not to use stripslashes on data from database * or twice stripslashes when processing data recieved from user. * * @param string $text text that may contain TRUSTTEXT marker * @return text without any TRUSTTEXT marker */ function trusttext_strip($text) { global $CFG; while (true) { //removing nested TRUSTTEXT $orig = $text; $text = str_replace(TRUSTTEXT, '', $text); if (strcmp($orig, $text) === 0) { return $text; } } } /** * Mark text as trusted, such text may contain any HTML tags because the * normal text cleaning will be bypassed. * Please make sure that the text comes from trusted user before storing * it into database! */ function trusttext_mark($text) { global $CFG; if (!empty($CFG->enabletrusttext) and (strpos($text, TRUSTTEXT) === FALSE)) { return TRUSTTEXT.$text; } else { return $text; } } function trusttext_after_edit(&$text, $context) { if (has_capability('moodle/site:trustcontent', $context)) { $text = trusttext_strip($text); $text = trusttext_mark($text); } else { $text = trusttext_strip($text); } } function trusttext_prepare_edit(&$text, &$format, $usehtmleditor, $context) { global $CFG; $options = new object(); $options->smiley = false; $options->filter = false; if (!empty($CFG->enabletrusttext) and has_capability('moodle/site:trustcontent', $context) and trusttext_present($text)) { $options->noclean = true; } else { $options->noclean = false; } $text = trusttext_strip($text); if ($usehtmleditor) { $text = format_text($text, $format, $options); $format = FORMAT_HTML; } else if (!$options->noclean){ $text = clean_text($text, $format); } } /** * Given raw text (eg typed in by a user), this function cleans it up * and removes any nasty tags that could mess up Moodle pages. * * @uses FORMAT_MOODLE * @uses FORMAT_PLAIN * @uses ALLOWED_TAGS * @param string $text The text to be cleaned * @param int $format Identifier of the text format to be used * (FORMAT_MOODLE, FORMAT_HTML, FORMAT_PLAIN, FORMAT_WIKI, FORMAT_MARKDOWN) * @return string The cleaned up text */ function clean_text($text, $format=FORMAT_MOODLE) { global $ALLOWED_TAGS, $CFG; if (empty($text) or is_numeric($text)) { return (string)$text; } switch ($format) { case FORMAT_PLAIN: return $text; default: if (!empty($CFG->enablehtmlpurifier)) { //this is PHP5 only, the lib/setup.php contains a disabler for PHP4 $text = purify_html($text); } else { /// Fix non standard entity notations $text = preg_replace('/�*([0-9]+);?/', "&#\\1;", $text); $text = preg_replace('/�*([0-9a-fA-F]+);?/', "&#x\\1;", $text); $text = preg_replace('[\x00-\x08\x0b-\x0c\x0e-\x1f]', '', $text); /// Remove tags that are not allowed $text = strip_tags($text, $ALLOWED_TAGS); /// Clean up embedded scripts and , using kses $text = cleanAttributes($text); /// Again remove tags that are not allowed $text = strip_tags($text, $ALLOWED_TAGS); } /// Remove potential script events - some extra protection for undiscovered bugs in our code $text = eregi_replace("([^a-z])language([[:space:]]*)=", "\\1Xlanguage=", $text); $text = eregi_replace("([^a-z])on([a-z]+)([[:space:]]*)=", "\\1Xon\\2=", $text); return $text; } } /** * KSES replacement cleaning function - uses HTML Purifier. * * @global object * @param string $text The (X)HTML string to purify */ function purify_html($text) { global $CFG; // this can not be done only once because we sometimes need to reset the cache $cachedir = $CFG->dataroot.'/cache/htmlpurifier'; check_dir_exists($cachedir); static $purifier = false; if ($purifier === false) { require_once $CFG->libdir.'/htmlpurifier/HTMLPurifier.safe-includes.php'; $config = HTMLPurifier_Config::createDefault(); $config->set('HTML.DefinitionID', 'moodlehtml'); $config->set('HTML.DefinitionRev', 1); $config->set('Cache.SerializerPath', $cachedir); //$config->set('Cache.SerializerPermission', $CFG->directorypermissions); // it would be nice to get this upstream $config->set('Core.NormalizeNewlines', false); $config->set('Core.ConvertDocumentToFragment', true); $config->set('Core.Encoding', 'UTF-8'); $config->set('HTML.Doctype', 'XHTML 1.0 Transitional'); $config->set('URI.AllowedSchemes', array('http'=>true, 'https'=>true, 'ftp'=>true, 'irc'=>true, 'nntp'=>true, 'news'=>true, 'rtsp'=>true, 'teamspeak'=>true, 'gopher'=>true, 'mms'=>true)); $config->set('Attr.AllowedFrameTargets', array('_blank')); if (!empty($CFG->allowobjectembed)) { $config->set('HTML.SafeObject', true); $config->set('Output.FlashCompat', true); $config->set('HTML.SafeEmbed', true); } $def = $config->getHTMLDefinition(true); $def->addElement('nolink', 'Block', 'Flow', array()); // skip our filters inside $def->addElement('tex', 'Inline', 'Inline', array()); // tex syntax, equivalent to $$xx$$ $def->addElement('algebra', 'Inline', 'Inline', array()); // algebra syntax, equivalent to @@xx@@ $def->addElement('lang', 'Block', 'Flow', array(), array('lang'=>'CDATA')); // old anf future style multilang - only our hacked lang attribute $def->addAttribute('span', 'xxxlang', 'CDATA'); // current problematic multilang $purifier = new HTMLPurifier($config); } $multilang = (strpos($text, 'class="multilang"') !== false); if ($multilang) { $text = preg_replace('/<span(\s+lang="([a-zA-Z0-9_-]+)"|\s+class="multilang"){2}\s*>/', '<span xxxlang="${2}">', $text); } $text = $purifier->purify($text); if ($multilang) { $text = preg_replace('/<span xxxlang="([a-zA-Z0-9_-]+)">/', '<span lang="${1}" class="multilang">', $text); } return $text; } /** * This function takes a string and examines it for HTML tags. * If tags are detected it passes the string to a helper function {@link cleanAttributes2()} * which checks for attributes and filters them for malicious content * 17/08/2004 :: Eamon DOT Costello AT dcu DOT ie * * @param string $str The string to be examined for html tags * @return string */ function cleanAttributes($str){ $result = preg_replace_callback( '%(<[^>]*(>|$)|>)%m', #search for html tags "cleanAttributes2", $str ); return $result; } /** * This function takes a string with an html tag and strips out any unallowed * protocols e.g. javascript: * It calls ancillary functions in kses which are prefixed by kses * 17/08/2004 :: Eamon DOT Costello AT dcu DOT ie * * @param array $htmlArray An array from {@link cleanAttributes()}, containing in its 1st * element the html to be cleared * @return string */ function cleanAttributes2($htmlArray){ global $CFG, $ALLOWED_PROTOCOLS; require_once($CFG->libdir .'/kses.php'); $htmlTag = $htmlArray[1]; if (substr($htmlTag, 0, 1) != '<') { return '>'; //a single character ">" detected } if (!preg_match('%^<\s*(/\s*)?([a-zA-Z0-9]+)([^>]*)>?$%', $htmlTag, $matches)) { return ''; // It's seriously malformed } $slash = trim($matches[1]); //trailing xhtml slash $elem = $matches[2]; //the element name $attrlist = $matches[3]; // the list of attributes as a string $attrArray = kses_hair($attrlist, $ALLOWED_PROTOCOLS); $attStr = ''; foreach ($attrArray as $arreach) { $arreach['name'] = strtolower($arreach['name']); if ($arreach['name'] == 'style') { $value = $arreach['value']; while (true) { $prevvalue = $value; $value = kses_no_null($value); $value = preg_replace("/\/\*.*\*\//Us", '', $value); $value = kses_decode_entities($value); $value = preg_replace('/(&#[0-9]+)(;?)/', "\\1;", $value); $value = preg_replace('/(&#x[0-9a-fA-F]+)(;?)/', "\\1;", $value); if ($value === $prevvalue) { $arreach['value'] = $value; break; } } $arreach['value'] = preg_replace("/j\s*a\s*v\s*a\s*s\s*c\s*r\s*i\s*p\s*t/i", "Xjavascript", $arreach['value']); $arreach['value'] = preg_replace("/v\s*b\s*s\s*c\s*r\s*i\s*p\s*t/i", "Xvbscript", $arreach['value']); $arreach['value'] = preg_replace("/e\s*x\s*p\s*r\s*e\s*s\s*s\s*i\s*o\s*n/i", "Xexpression", $arreach['value']); $arreach['value'] = preg_replace("/b\s*i\s*n\s*d\s*i\s*n\s*g/i", "Xbinding", $arreach['value']); } else if ($arreach['name'] == 'href') { //Adobe Acrobat Reader XSS protection $arreach['value'] = preg_replace('/(\.(pdf|fdf|xfdf|xdp|xfd)[^#]*)#.*$/i', '$1', $arreach['value']); } $attStr .= ' '.$arreach['name'].'="'.$arreach['value'].'"'; } $xhtml_slash = ''; if (preg_match('%/\s*$%', $attrlist)) { $xhtml_slash = ' /'; } return '<'. $slash . $elem . $attStr . $xhtml_slash .'>'; } /** * Replaces all known smileys in the text with image equivalents * * @uses $CFG * @param string $text Passed by reference. The string to search for smily strings. * @return string */ function replace_smilies(&$text) { global $CFG; if (empty($CFG->emoticons)) { /// No emoticons defined, nothing to process here return; } $lang = current_language(); $emoticonstring = $CFG->emoticons; static $e = array(); static $img = array(); static $emoticons = null; if (is_null($emoticons)) { $emoticons = array(); if ($emoticonstring) { $items = explode('{;}', $CFG->emoticons); foreach ($items as $item) { $item = explode('{:}', $item); $emoticons[$item[0]] = $item[1]; } } } if (empty($img[$lang])) { /// After the first time this is not run again $e[$lang] = array(); $img[$lang] = array(); foreach ($emoticons as $emoticon => $image){ $alttext = get_string($image, 'pix'); $alttext = preg_replace('/^\[\[(.*)\]\]$/', '$1', $alttext); /// Clean alttext in case there isn't lang string for it. $e[$lang][] = $emoticon; $img[$lang][] = '<img alt="'. $alttext .'" width="15" height="15" src="'. $CFG->pixpath .'/s/'. $image .'.gif" />'; } } // Exclude from transformations all the code inside <script> tags // Needed to solve Bug 1185. Thanks to jouse 2001 detecting it. :-) // Based on code from glossary fiter by Williams Castillo. // - Eloy // Detect all the <script> zones to take out $excludes = array(); preg_match_all('/<script language(.+?)<\/script>/is',$text,$list_of_excludes); // Take out all the <script> zones from text foreach (array_unique($list_of_excludes[0]) as $key=>$value) { $excludes['<+'.$key.'+>'] = $value; } if ($excludes) { $text = str_replace($excludes,array_keys($excludes),$text); } /// this is the meat of the code - this is run every time $text = str_replace($e[$lang], $img[$lang], $text); // Recover all the <script> zones to text if ($excludes) { $text = str_replace(array_keys($excludes),$excludes,$text); } } /** * Given plain text, makes it into HTML as nicely as possible. * May contain HTML tags already * * @uses $CFG * @param string $text The string to convert. * @param boolean $smiley Convert any smiley characters to smiley images? * @param boolean $para If true then the returned string will be wrapped in paragraph tags * @param boolean $newlines If true then lines newline breaks will be converted to HTML newline breaks. * @return string */ function text_to_html($text, $smiley=true, $para=true, $newlines=true) { /// global $CFG; /// Remove any whitespace that may be between HTML tags $text = eregi_replace(">([[:space:]]+)<", "><", $text); /// Remove any returns that precede or follow HTML tags $text = eregi_replace("([\n\r])<", " <", $text); $text = eregi_replace(">([\n\r])", "> ", $text); convert_urls_into_links($text); /// Make returns into HTML newlines. if ($newlines) { $text = nl2br($text); } /// Turn smileys into images. if ($smiley) { replace_smilies($text); } /// Wrap the whole thing in a paragraph tag if required if ($para) { return '<p>'.$text.'</p>'; } else { return $text; } } /** * Given Markdown formatted text, make it into XHTML using external function * * @uses $CFG * @param string $text The markdown formatted text to be converted. * @return string Converted text */ function markdown_to_html($text) { global $CFG; require_once($CFG->libdir .'/markdown.php'); return Markdown($text); } /** * Given HTML text, make it into plain text using external function * * @param string $html The text to be converted. * @param integer $width Width to wrap the text at. (optional, default 75 which * is a good value for email. 0 means do not limit line length.) * @return string plain text equivalent of the HTML. */ function html_to_text($html, $width = 75) { global $CFG; require_once($CFG->libdir .'/html2text.php'); $h2t = new html2text($html, false, true, $width); $result = $h2t->get_text(); return $result; } /** * Given some text this function converts any URLs it finds into HTML links * * @param string $text Passed in by reference. The string to be searched for urls. */ function convert_urls_into_links(&$text) { //I've added img tags to this list of tags to ignore. //See MDL-21168 for more info. A better way to ignore tags whether or not //they are escaped partially or completely would be desirable. For example: //<a href="blah"> //<a href="blah"> //<a href="blah"> $filterignoretagsopen = array('<a\s[^>]+?>'); $filterignoretagsclose = array('</a>'); filter_save_ignore_tags($text,$filterignoretagsopen,$filterignoretagsclose,$ignoretags); // Check if we support unicode modifiers in regular expressions. Cache it. // TODO: this check should be a environment requirement in Moodle 2.0, as far as unicode // chars are going to arrive to URLs officially really soon (2010?) // Original RFC regex from: http://www.bytemycode.com/snippets/snippet/796/ // Various ideas from: http://alanstorm.com/url_regex_explained // Unicode check, negative assertion and other bits from Moodle. static $unicoderegexp; if (!isset($unicoderegexp)) { $unicoderegexp = @preg_match('/\pL/u', 'a'); // This will fail silenty, returning false, } $unicoderegexp = false;//force non use of unicode modifiers. MDL-21296 if ($unicoderegexp) { //We can use unicode modifiers $text = preg_replace('#(?<!=["\'])(((http(s?))://)(((([\pLl0-9]([\pLl0-9]|-)*[\pLl0-9]|[\pLl0-9])\.)+([\pLl]([\pLl0-9]|-)*[\pLl0-9]|[\pLl]))|(([0-9]{1,3}\.){3}[0-9]{1,3}))(:[\pL0-9]*)?(/([\pLl0-9\.!$&\'\(\)*+,;=_~:@-]|%[a-fA-F0-9]{2})*)*(\?([\pLl0-9\.!$&\'\(\)*+,;=_~:@/?-]|%[a-fA-F0-9]{2})*)?(\#[\pLl0-9\.!$&\'\(\)*+,;=_~:@/?-]*)?)(?<![,\.;])#iu', '<a href="\\1" target="_blank">\\1</a>', $text); $text = preg_replace('#(?<!=["\']|//)((www\.([\pLl0-9]([\pLl0-9]|-)*[\pLl0-9]|[\pLl0-9])\.)+([\pLl]([\pLl0-9]|-)*[\pLl0-9]|[\pLl])(:[\pL0-9]*)?(/([\pLl0-9\.!$&\'\(\)*+,;=_~:@-]|%[a-fA-F0-9]{2})*)*(\?([\pLl0-9\.!$&\'\(\)*+,;=_~:@/?-]|%[a-fA-F0-9]{2})*)?(\#[\pLl0-9\.!$&\'\(\)*+,;=_~:@/?-]*)?)(?<![,\.;])#iu', '<a href="http://\\1" target="_blank">\\1</a>', $text); } else { //We cannot use unicode modifiers $text = preg_replace('#(?<!=["\'])(((http(s?))://)(((([a-z0-9]([a-z0-9]|-)*[a-z0-9]|[a-z0-9])\.)+([a-z]([a-z0-9]|-)*[a-z0-9]|[a-z]))|(([0-9]{1,3}\.){3}[0-9]{1,3}))(:[a-zA-Z0-9]*)?(/([a-z0-9\.!$&\'\(\)*+,;=_~:@-]|%[a-f0-9]{2})*)*(\?([a-z0-9\.!$&\'\(\)*+,;=_~:@/?-]|%[a-fA-F0-9]{2})*)?(\#[a-z0-9\.!$&\'\(\)*+,;=_~:@/?-]*)?)(?<![,\.;])#i', '<a href="\\1" target="_blank">\\1</a>', $text); $text = preg_replace('#(?<!=["\']|//)((www\.([a-z0-9]([a-z0-9]|-)*[a-z0-9]|[a-z0-9])\.)+([a-z]([a-z0-9]|-)*[a-z0-9]|[a-z])(:[a-zA-Z0-9]*)?(/([a-z0-9\.!$&\'\(\)*+,;=_~:@-]|%[a-f0-9]{2})*)*(\?([a-z0-9\.!$&\'\(\)*+,;=_~:@/?-]|%[a-fA-F0-9]{2})*)?(\#[a-z0-9\.!$&\'\(\)*+,;=_~:@/?-]*)?)(?<![,\.;])#i', '<a href="http://\\1" target="_blank">\\1</a>', $text); } if (!empty($ignoretags)) { $ignoretags = array_reverse($ignoretags); /// Reversed so "progressive" str_replace() will solve some nesting problems. $text = str_replace(array_keys($ignoretags),$ignoretags,$text); } } /** * This function will highlight search words in a given string * It cares about HTML and will not ruin links. It's best to use * this function after performing any conversions to HTML. * * @param string $needle The search string. Syntax like "word1 +word2 -word3" is dealt with correctly. * @param string $haystack The string (HTML) within which to highlight the search terms. * @param boolean $matchcase whether to do case-sensitive. Default case-insensitive. * @param string $prefix the string to put before each search term found. * @param string $suffix the string to put after each search term found. * @return string The highlighted HTML. */ function highlight($needle, $haystack, $matchcase = false, $prefix = '<span class="highlight">', $suffix = '</span>') { /// Quick bail-out in trivial cases. if (empty($needle) or empty($haystack)) { return $haystack; } /// Break up the search term into words, discard any -words and build a regexp. $words = preg_split('/ +/', trim($needle)); foreach ($words as $index => $word) { if (strpos($word, '-') === 0) { unset($words[$index]); } else if (strpos($word, '+') === 0) { $words[$index] = '\b' . preg_quote(ltrim($word, '+'), '/') . '\b'; // Match only as a complete word. } else { $words[$index] = preg_quote($word, '/'); } } $regexp = '/(' . implode('|', $words) . ')/u'; // u is do UTF-8 matching. if (!$matchcase) { $regexp .= 'i'; } /// Another chance to bail-out if $search was only -words if (empty($words)) { return $haystack; } /// Find all the HTML tags in the input, and store them in a placeholders array. $placeholders = array(); $matches = array(); preg_match_all('/<[^>]*>/', $haystack, $matches); foreach (array_unique($matches[0]) as $key => $htmltag) { $placeholders['<|' . $key . '|>'] = $htmltag; } /// In $hastack, replace each HTML tag with the corresponding placeholder. $haystack = str_replace($placeholders, array_keys($placeholders), $haystack); /// In the resulting string, Do the highlighting. $haystack = preg_replace($regexp, $prefix . '$1' . $suffix, $haystack); /// Turn the placeholders back into HTML tags. $haystack = str_replace(array_keys($placeholders), $placeholders, $haystack); return $haystack; } /** * This function will highlight instances of $needle in $haystack * It's faster that the above function and doesn't care about * HTML or anything. * * @param string $needle The string to search for * @param string $haystack The string to search for $needle in * @return string */ function highlightfast($needle, $haystack) { if (empty($needle) or empty($haystack)) { return $haystack; } $parts = explode(moodle_strtolower($needle), moodle_strtolower($haystack)); if (count($parts) === 1) { return $haystack; } $pos = 0; foreach ($parts as $key => $part) { $parts[$key] = substr($haystack, $pos, strlen($part)); $pos += strlen($part); $parts[$key] .= '<span class="highlight">'.substr($haystack, $pos, strlen($needle)).'</span>'; $pos += strlen($needle); } return str_replace('<span class="highlight"></span>', '', join('', $parts)); } /** * Return a string containing 'lang', xml:lang and optionally 'dir' HTML attributes. * Internationalisation, for print_header and backup/restorelib. * @param $dir Default false. * @return string Attributes. */ function get_html_lang($dir = false) { $direction = ''; if ($dir) { if (get_string('thisdirection') == 'rtl') { $direction = ' dir="rtl"'; } else { $direction = ' dir="ltr"'; } } //Accessibility: added the 'lang' attribute to $direction, used in theme <html> tag. $language = str_replace('_', '-', str_replace('_utf8', '', current_language())); @header('Content-Language: '.$language); return ($direction.' lang="'.$language.'" xml:lang="'.$language.'"'); } /** * Return the markup for the destination of the 'Skip to main content' links. * Accessibility improvement for keyboard-only users. * Used in course formats, /index.php and /course/index.php * @return string HTML element. */ function skip_main_destination() { return '<span id="maincontent"></span>'; } /// STANDARD WEB PAGE PARTS /////////////////////////////////////////////////// /** * Print a standard header * * @uses $USER * @uses $CFG * @uses $SESSION * @param string $title Appears at the top of the window * @param string $heading Appears at the top of the page * @param array $navigation Array of $navlinks arrays (keys: name, link, type) for use as breadcrumbs links * @param string $focus Indicates form element to get cursor focus on load eg inputform.password * @param string $meta Meta tags to be added to the header * @param boolean $cache Should this page be cacheable? * @param string $button HTML code for a button (usually for module editing) * @param string $menu HTML code for a popup menu * @param boolean $usexml use XML for this page * @param string $bodytags This text will be included verbatim in the <body> tag (useful for onload() etc) * @param bool $return If true, return the visible elements of the header instead of echoing them. */ function print_header ($title='', $heading='', $navigation='', $focus='', $meta='', $cache=true, $button=' ', $menu='', $usexml=false, $bodytags='', $return=false) { global $USER, $CFG, $THEME, $SESSION, $ME, $SITE, $COURSE; if (gettype($navigation) == 'string' && strlen($navigation) != 0 && $navigation != 'home') { debugging("print_header() was sent a string as 3rd ($navigation) parameter. " . "This is deprecated in favour of an array built by build_navigation(). Please upgrade your code.", DEBUG_DEVELOPER); } $heading = format_string($heading); // Fix for MDL-8582 /// This makes sure that the header is never repeated twice on a page if (defined('HEADER_PRINTED')) { debugging('print_header() was called more than once - this should not happen. Please check the code for this page closely. Note: error() and redirect() are now safe to call after print_header().'); return; } define('HEADER_PRINTED', 'true'); /// Perform a browser environment check for the flash version. Should only run once per login session. if (isloggedin() && !empty($CFG->excludeoldflashclients) && empty($SESSION->flashversion)) { // Unfortunately we can't use require_js here and keep it all clean in 1.9 ... // require_js(array('yui_yahoo', 'yui_event', 'yui_connection', $CFG->httpswwwroot."/lib/swfobject/swfobject.js")); $meta .= '<script type="text/javascript" src="'.$CFG->httpswwwroot.'/lib/yui/yahoo/yahoo-min.js"></script>'; $meta .= '<script type="text/javascript" src="'.$CFG->httpswwwroot.'/lib/yui/event/event-min.js"></script>'; $meta .= '<script type="text/javascript" src="'.$CFG->httpswwwroot.'/lib/yui/connection/connection-min.js"></script>'; $meta .= '<script type="text/javascript" src="'.$CFG->httpswwwroot.'/lib/swfobject/swfobject.js"></script>'; $meta .= "<script type=\"text/javascript\">\n". "//<![CDATA[\n". " var flashversion = swfobject.getFlashPlayerVersion();\n". " YAHOO.util.Connect.asyncRequest('GET','".$CFG->httpswwwroot."/login/environment.php?sesskey=".sesskey()."&flashversion='+flashversion.major+'.'+flashversion.minor+'.'+flashversion.release);\n". "//]]>\n". "</script>"; } /// Add the required stylesheets $stylesheetshtml = ''; foreach ($CFG->stylesheets as $stylesheet) { $stylesheetshtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />'."\n"; } $meta = $stylesheetshtml.$meta; /// Add the meta page from the themes if any were requested $metapage = ''; if (!isset($THEME->standardmetainclude) || $THEME->standardmetainclude) { ob_start(); include_once($CFG->dirroot.'/theme/standard/meta.php'); $metapage .= ob_get_contents(); ob_end_clean(); } if ($THEME->parent && (!isset($THEME->parentmetainclude) || $THEME->parentmetainclude)) { if (file_exists($CFG->dirroot.'/theme/'.$THEME->parent.'/meta.php')) { ob_start(); include_once($CFG->dirroot.'/theme/'.$THEME->parent.'/meta.php'); $metapage .= ob_get_contents(); ob_end_clean(); } } if (!isset($THEME->metainclude) || $THEME->metainclude) { if (file_exists($CFG->dirroot.'/theme/'.current_theme().'/meta.php')) { ob_start(); include_once($CFG->dirroot.'/theme/'.current_theme().'/meta.php'); $metapage .= ob_get_contents(); ob_end_clean(); } } $meta = $meta."\n".$metapage; $meta .= "\n".require_js('',1); /// Set up some navigation variables if (is_newnav($navigation)){ $home = false; } else { if ($navigation == 'home') { $home = true; $navigation = ''; } else { $home = false; } } /// This is another ugly hack to make navigation elements available to print_footer later $THEME->title = $title; $THEME->heading = $heading; $THEME->navigation = $navigation; $THEME->button = $button; $THEME->menu = $menu; $navmenulist = isset($THEME->navmenulist) ? $THEME->navmenulist : ''; if ($button == '') { $button = ' '; } if (file_exists($CFG->dataroot.'/'.SITEID.'/maintenance.html')) { $button = '<a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/maintenance.php">'.get_string('maintenancemode', 'admin').'</a> '.$button; if(!empty($title)) { $title .= ' - '; } $title .= get_string('maintenancemode', 'admin'); } if (!$menu and $navigation) { if (empty($CFG->loginhttps)) { $wwwroot = $CFG->wwwroot; } else { $wwwroot = str_replace('http:','https:',$CFG->wwwroot); } $menu = user_login_string($COURSE); } if (isset($SESSION->justloggedin)) { unset($SESSION->justloggedin); if (!empty($CFG->displayloginfailures)) { if (!empty($USER->username) and $USER->username != 'guest') { if ($count = count_login_failures($CFG->displayloginfailures, $USER->username, $USER->lastlogin)) { $menu .= ' <font size="1">'; if (empty($count->accounts)) { $menu .= get_string('failedloginattempts', '', $count); } else { $menu .= get_string('failedloginattemptsall', '', $count); } if (has_capability('coursereport/log:view', get_context_instance(CONTEXT_SYSTEM))) { $menu .= ' (<a href="'.$CFG->wwwroot.'/course/report/log/index.php'. '?chooselog=1&id=1&modid=site_errors">'.get_string('logs').'</a>)'; } $menu .= '</font>'; } } } } $meta = '<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />' . "\n" . $meta . "\n"; if (!$usexml) { @header('Content-Type: text/html; charset=utf-8'); } @header('Content-Script-Type: text/javascript'); @header('Content-Style-Type: text/css'); //Accessibility: added the 'lang' attribute to $direction, used in theme <html> tag. $direction = get_html_lang($dir=true); if ($cache) { // Allow caching on "back" (but not on normal clicks) @header('Cache-Control: private, pre-check=0, post-check=0, max-age=0'); @header('Pragma: no-cache'); @header('Expires: '); } else { // Do everything we can to always prevent clients and proxies caching @header('Cache-Control: no-store, no-cache, must-revalidate'); @header('Cache-Control: post-check=0, pre-check=0', false); @header('Pragma: no-cache'); @header('Expires: Mon, 20 Aug 1969 09:23:00 GMT'); @header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); $meta .= "\n<meta http-equiv=\"pragma\" content=\"no-cache\" />"; $meta .= "\n<meta http-equiv=\"expires\" content=\"0\" />"; } @header('Accept-Ranges: none'); $currentlanguage = current_language(); if (empty($usexml)) { $direction = ' xmlns="http://www.w3.org/1999/xhtml"'. $direction; // See debug_header } else { $mathplayer = preg_match("/MathPlayer/i", $_SERVER['HTTP_USER_AGENT']); if(!$mathplayer) { header('Content-Type: application/xhtml+xml'); } echo '<?xml version="1.0" ?>'."\n"; if (!empty($CFG->xml_stylesheets)) { $stylesheets = explode(';', $CFG->xml_stylesheets); foreach ($stylesheets as $stylesheet) { echo '<?xml-stylesheet type="text/xsl" href="'. $CFG->wwwroot .'/'. $stylesheet .'" ?>' . "\n"; } } echo '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1'; if (!empty($CFG->xml_doctype_extra)) { echo ' plus '. $CFG->xml_doctype_extra; } echo '//' . strtoupper($currentlanguage) . '" "'. $CFG->xml_dtd .'">'."\n"; $direction = " xmlns=\"http://www.w3.org/1999/xhtml\" xmlns:math=\"http://www.w3.org/1998/Math/MathML\" xmlns:xlink=\"http://www.w3.org/1999/xlink\" $direction"; if($mathplayer) { $meta .= '<object id="mathplayer" classid="clsid:32F66A20-7614-11D4-BD11-00104BD3F987">' . "\n"; $meta .= '<!--comment required to prevent this becoming an empty tag-->'."\n"; $meta .= '</object>'."\n"; $meta .= '<?import namespace="math" implementation="#mathplayer" ?>' . "\n"; } } // Clean up the title $title = format_string($title); // fix for MDL-8582 $title = str_replace('"', '"', $title); // Create class and id for this page page_id_and_class($pageid, $pageclass); $pageclass .= ' course-'.$COURSE->id; if (!isloggedin()) { $pageclass .= ' notloggedin'; } if (!empty($USER->editing)) { $pageclass .= ' editing'; } if (!empty($CFG->blocksdrag)) { $pageclass .= ' drag'; } $pageclass .= ' dir-'.get_string('thisdirection'); $pageclass .= ' lang-'.$currentlanguage; $bodytags .= ' class="'.$pageclass.'" id="'.$pageid.'"'; ob_start(); include($CFG->header); $output = ob_get_contents(); ob_end_clean(); // container debugging info $THEME->open_header_containers = open_containers(); // Skip to main content, see skip_main_destination(). if ($pageid=='course-view' or $pageid=='site-index' or $pageid=='course-index') { $skiplink = '<a class="skip" href="#maincontent">'.get_string('tocontent', 'access').'</a>'; if (! preg_match('/(.*<div[^>]+id="page"[^>]*>)(.*)/s', $output, $matches)) { preg_match('/(.*<body.*?>)(.*)/s', $output, $matches); } $output = $matches[1]."\n". $skiplink .$matches[2]; } $output = force_strict_header($output); if (!empty($CFG->messaging)) { $output .= message_popup_window(); } // Add in any extra JavaScript libraries that occurred during the header $output .= require_js('', 2); if ($return) { return $output; } else { echo $output; } } /** * Used to include JavaScript libraries. * * When the $lib parameter is given, the function will ensure that the * named library is loaded onto the page - either in the HTML <head>, * just after the header, or at an arbitrary later point in the page, * depending on where this function is called. * * Libraries will not be included more than once, so this works like * require_once in PHP. * * There are two special-case calls to this function which are both used only * by weblib print_header: * $extracthtml = 1: this is used before printing the header. * It returns the script tag code that should go inside the <head>. * $extracthtml = 2: this is used after printing the header and handles any * require_js calls that occurred within the header itself. * * @param mixed $lib - string or array of strings * string(s) should be the shortname for the library or the * full path to the library file. * @param int $extracthtml Do not set this parameter usually (leave 0), only * weblib should set this to 1 or 2 in print_header function. * @return mixed No return value, except when using $extracthtml it returns the html code. */ function require_js($lib,$extracthtml=0) { global $CFG; static $loadlibs = array(); static $state = REQUIREJS_BEFOREHEADER; static $latecode = ''; if (!empty($lib)) { // Add the lib to the list of libs to be loaded, if it isn't already // in the list. if (is_array($lib)) { foreach($lib as $singlelib) { require_js($singlelib); } } else { $libpath = ajax_get_lib($lib); if (array_search($libpath, $loadlibs) === false) { $loadlibs[] = $libpath; // For state other than 0 we need to take action as well as just // adding it to loadlibs if($state != REQUIREJS_BEFOREHEADER) { // Get the script statement for this library $scriptstatement=get_require_js_code(array($libpath)); if($state == REQUIREJS_AFTERHEADER) { // After the header, print it immediately print $scriptstatement; } else { // Haven't finished the header yet. Add it after the // header $latecode .= $scriptstatement; } } } } } else if($extracthtml==1) { if($state !== REQUIREJS_BEFOREHEADER) { debugging('Incorrect state in require_js (expected BEFOREHEADER): be careful not to call with empty $lib (except in print_header)'); } else { $state = REQUIREJS_INHEADER; } return get_require_js_code($loadlibs); } else if($extracthtml==2) { if($state !== REQUIREJS_INHEADER) { debugging('Incorrect state in require_js (expected INHEADER): be careful not to call with empty $lib (except in print_header)'); return ''; } else { $state = REQUIREJS_AFTERHEADER; return $latecode; } } else { debugging('Unexpected value for $extracthtml'); } } /** * Should not be called directly - use require_js. This function obtains the code * (script tags) needed to include JavaScript libraries. * @param array $loadlibs Array of library files to include * @return string HTML code to include them */ function get_require_js_code($loadlibs) { global $CFG; // Return the html needed to load the JavaScript files defined in // our list of libs to be loaded. $output = ''; foreach ($loadlibs as $loadlib) { $output .= '<script type="text/javascript" '; $output .= " src=\"$loadlib\"></script>\n"; if ($loadlib == $CFG->wwwroot.'/lib/yui/logger/logger-min.js') { // Special case, we need the CSS too. $output .= '<link type="text/css" rel="stylesheet" '; $output .= " href=\"{$CFG->wwwroot}/lib/yui/logger/assets/logger.css\" />\n"; } } return $output; } /** * Debugging aid: serve page as 'application/xhtml+xml' where possible, * and substitute the XHTML strict document type. * Note, requires the 'xmlns' fix in function print_header above. * See: http://tracker.moodle.org/browse/MDL-7883 * TODO: */ function force_strict_header($output) { global $CFG; $strict = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">'; $xsl = '/lib/xhtml.xsl'; if (!headers_sent() && !empty($CFG->xmlstrictheaders)) { // With xml strict headers, the browser will barf $ctype = 'Content-Type: '; $prolog= "<?xml version='1.0' encoding='utf-8'?>\n"; if (isset($_SERVER['HTTP_ACCEPT']) && false !== strpos($_SERVER['HTTP_ACCEPT'], 'application/xhtml+xml')) { //|| false !== strpos($_SERVER['HTTP_USER_AGENT'], 'Safari') //Safari "Entity 'copy' not defined". // Firefox et al. $ctype .= 'application/xhtml+xml'; $prolog .= "<!--\n DEBUG: $ctype \n-->\n"; } else if (file_exists($CFG->dirroot.$xsl) && preg_match('/MSIE.*Windows NT/', $_SERVER['HTTP_USER_AGENT'])) { // XSL hack for IE 5+ on Windows. //$www_xsl = preg_replace('/(http:\/\/.+?\/).*/', '', $CFG->wwwroot) .$xsl; $www_xsl = $CFG->wwwroot .$xsl; $ctype .= 'application/xml'; $prolog .= "<?xml-stylesheet type='text/xsl' href='$www_xsl'?>\n"; $prolog .= "<!--\n DEBUG: $ctype \n-->\n"; } else { //ELSE: Mac/IE, old/non-XML browsers. $ctype .= 'text/html'; $prolog = ''; } @header($ctype.'; charset=utf-8'); $output = $prolog . $output; // Test parser error-handling. if (isset($_GET['error'])) { $output .= "__ TEST: XML well-formed error < __\n"; } } $output = preg_replace('/(<!DOCTYPE.+?>)/s', $strict, $output); // Always change the DOCTYPE to Strict 1.0 return $output; } /** * This version of print_header is simpler because the course name does not have to be * provided explicitly in the strings. It can be used on the site page as in courses * Eventually all print_header could be replaced by print_header_simple * * @param string $title Appears at the top of the window * @param string $heading Appears at the top of the page * @param string $navigation Premade navigation string (for use as breadcrumbs links) * @param string $focus Indicates form element to get cursor focus on load eg inputform.password * @param string $meta Meta tags to be added to the header * @param boolean $cache Should this page be cacheable? * @param string $button HTML code for a button (usually for module editing) * @param string $menu HTML code for a popup menu * @param boolean $usexml use XML for this page * @param string $bodytags This text will be included verbatim in the <body> tag (useful for onload() etc) * @param bool $return If true, return the visible elements of the header instead of echoing them. */ function print_header_simple($title='', $heading='', $navigation='', $focus='', $meta='', $cache=true, $button=' ', $menu='', $usexml=false, $bodytags='', $return=false) { global $COURSE, $CFG; // if we have no navigation specified, build it if( empty($navigation) ){ $navigation = build_navigation(''); } // If old style nav prepend course short name otherwise leave $navigation object alone if (!is_newnav($navigation)) { if ($COURSE->id != SITEID) { $shortname = '<a href="'.$CFG->wwwroot.'/course/view.php?id='. $COURSE->id .'">'. $COURSE->shortname .'</a> ->'; $navigation = $shortname.' '.$navigation; } } $output = print_header($COURSE->shortname .': '. $title, $COURSE->fullname .' '. $heading, $navigation, $focus, $meta, $cache, $button, $menu, $usexml, $bodytags, true); if ($return) { return $output; } else { echo $output; } } /** * Can provide a course object to make the footer contain a link to * to the course home page, otherwise the link will go to the site home * @uses $USER * @param mixed $course course object, used for course link button or * 'none' means no user link, only docs link * 'empty' means nothing printed in footer * 'home' special frontpage footer * @param object $usercourse course used in user link * @param boolean $return output as string * @return mixed string or void */ function print_footer($course=NULL, $usercourse=NULL, $return=false) { global $USER, $CFG, $THEME, $COURSE; if (defined('ADMIN_EXT_HEADER_PRINTED') and !defined('ADMIN_EXT_FOOTER_PRINTED')) { admin_externalpage_print_footer(); return; } /// Course links or special footer if ($course) { if ($course === 'empty') { // special hack - sometimes we do not want even the docs link in footer $output = ''; if (!empty($THEME->open_header_containers)) { for ($i=0; $i<$THEME->open_header_containers; $i++) { $output .= print_container_end_all(); // containers opened from header } } else { //1.8 theme compatibility $output .= "\n</div>"; // content div } $output .= "\n</div>\n</body>\n</html>"; // close page div started in header if ($return) { return $output; } else { echo $output; return; } } else if ($course === 'none') { // Don't print any links etc $homelink = ''; $loggedinas = ''; $home = false; } else if ($course === 'home') { // special case for site home page - please do not remove $course = get_site(); $homelink = '<div class="sitelink">'. '<a title="Moodle" href="http://moodle.org/">'. '<img style="width:100px;height:30px" src="pix/moodlelogo.gif" alt="moodlelogo" /></a><br /> </div>'; $home = true; } else { $homelink = '<div class="homelink"><a '.$CFG->frametarget.' href="'.$CFG->wwwroot. '/course/view.php?id='.$course->id.'">'.format_string($course->shortname).'</a></div>'; $home = false; } } else { $course = get_site(); // Set course as site course by default $homelink = '<div class="homelink"><a '.$CFG->frametarget.' href="'.$CFG->wwwroot.'/">'.get_string('home').'</a></div>'; $home = false; } /// Set up some other navigation links (passed from print_header by ugly hack) $menu = isset($THEME->menu) ? str_replace('navmenu', 'navmenufooter', $THEME->menu) : ''; $title = isset($THEME->title) ? $THEME->title : ''; $button = isset($THEME->button) ? $THEME->button : ''; $heading = isset($THEME->heading) ? $THEME->heading : ''; $navigation = isset($THEME->navigation) ? $THEME->navigation : ''; $navmenulist = isset($THEME->navmenulist) ? $THEME->navmenulist : ''; /// Set the user link if necessary if (!$usercourse and is_object($course)) { $usercourse = $course; } if (!isset($loggedinas)) { $loggedinas = user_login_string($usercourse, $USER); } if ($loggedinas == $menu) { $menu = ''; } /// there should be exactly the same number of open containers as after the header if ($THEME->open_header_containers != open_containers()) { debugging('Unexpected number of open containers: '.open_containers().', expecting '.$THEME->open_header_containers, DEBUG_DEVELOPER); } /// Provide some performance info if required $performanceinfo = ''; if (defined('MDL_PERF') || (!empty($CFG->perfdebug) and $CFG->perfdebug > 7)) { $perf = get_performance_info(); if (defined('MDL_PERFTOLOG') && !function_exists('register_shutdown_function')) { error_log("PERF: " . $perf['txt']); } if (defined('MDL_PERFTOFOOT') || debugging() || $CFG->perfdebug > 7) { $performanceinfo = $perf['html']; } } /// Include the actual footer file ob_start(); include($CFG->footer); $output = ob_get_contents(); ob_end_clean(); if ($return) { return $output; } else { echo $output; } } /** * Returns the name of the current theme * * @uses $CFG * @uses $USER * @uses $SESSION * @uses $COURSE * @uses $FULLME * @return string */ function current_theme() { global $CFG, $USER, $SESSION, $COURSE, $FULLME; if (empty($CFG->themeorder)) { $themeorder = array('page', 'course', 'category', 'session', 'user', 'site'); } else { $themeorder = $CFG->themeorder; } if (isloggedin() and isset($CFG->mnet_localhost_id) and $USER->mnethostid != $CFG->mnet_localhost_id) { require_once($CFG->dirroot.'/mnet/peer.php'); $mnet_peer = new mnet_peer(); $mnet_peer->set_id($USER->mnethostid); } $theme = ''; foreach ($themeorder as $themetype) { if (!empty($theme)) continue; switch ($themetype) { case 'page': // Page theme is for special page-only themes set by code if (!empty($CFG->pagetheme)) { $theme = $CFG->pagetheme; } break; case 'course': if (!empty($CFG->allowcoursethemes) and !empty($COURSE->theme)) { $theme = $COURSE->theme; } break; case 'category': if (!empty($CFG->allowcategorythemes)) { /// Nasty hack to check if we're in a category page if (stripos($FULLME, 'course/category.php') !== false) { global $id; if (!empty($id)) { $theme = current_category_theme($id); } /// Otherwise check if we're in a course that has a category theme set } else if (!empty($COURSE->category)) { $theme = current_category_theme($COURSE->category); } } break; case 'session': if (!empty($SESSION->theme)) { $theme = $SESSION->theme; } break; case 'user': if (!empty($CFG->allowuserthemes) and !empty($USER->theme)) { if (isloggedin() and $USER->mnethostid != $CFG->mnet_localhost_id && $mnet_peer->force_theme == 1 && $mnet_peer->theme != '') { $theme = $mnet_peer->theme; } else { $theme = $USER->theme; } } break; case 'site': if (isloggedin() and isset($CFG->mnet_localhost_id) and $USER->mnethostid != $CFG->mnet_localhost_id && $mnet_peer->force_theme == 1 && $mnet_peer->theme != '') { $theme = $mnet_peer->theme; } else { $theme = $CFG->theme; } break; default: /// do nothing } } /// A final check in case 'site' was not included in $CFG->themeorder if (empty($theme)) { $theme = $CFG->theme; } return $theme; } /** * Retrieves the category theme if one exists, otherwise checks the parent categories. * Recursive function. * * @uses $COURSE * @param integer $categoryid id of the category to check * @return string theme name */ function current_category_theme($categoryid=0) { global $COURSE; /// Use the COURSE global if the categoryid not set if (empty($categoryid)) { if (!empty($COURSE->category)) { $categoryid = $COURSE->category; } else { return false; } } /// Retrieve the current category if ($category = get_record('course_categories', 'id', $categoryid)) { /// Return the category theme if it exists if (!empty($category->theme)) { return $category->theme; /// Otherwise try the parent category if one exists } else if (!empty($category->parent)) { return current_category_theme($category->parent); } /// Return false if we can't find the category record } else { return false; } } /** * This function is called by stylesheets to set up the header * approriately as well as the current path * * @uses $CFG * @param int $lastmodified ? * @param int $lifetime ? * @param string $thename ? */ function style_sheet_setup($lastmodified=0, $lifetime=300, $themename='', $forceconfig='', $lang='') { global $CFG, $THEME; // Fix for IE6 caching - we don't want the filemtime('styles.php'), instead use now. $lastmodified = time(); header('Last-Modified: ' . gmdate("D, d M Y H:i:s", $lastmodified) . ' GMT'); header('Expires: ' . gmdate("D, d M Y H:i:s", time() + $lifetime) . ' GMT'); header('Cache-Control: max-age='. $lifetime); header('Pragma: '); header('Content-type: text/css'); // Correct MIME type $DEFAULT_SHEET_LIST = array('styles_layout', 'styles_fonts', 'styles_color'); if (empty($themename)) { $themename = current_theme(); // So we have something. Normally not needed. } else { $themename = clean_param($themename, PARAM_SAFEDIR); } if (!empty($forceconfig)) { // Page wants to use the config from this theme instead unset($THEME); include($CFG->themedir.'/'.$forceconfig.'/'.'config.php'); } /// If this is the standard theme calling us, then find out what sheets we need if ($themename == 'standard') { if (!isset($THEME->standardsheets) or $THEME->standardsheets === true) { // Use all the sheets we have $THEME->sheets = $DEFAULT_SHEET_LIST; } else if (empty($THEME->standardsheets)) { // We can stop right now! echo "/***** Nothing required from this stylesheet by main theme *****/\n\n"; exit; } else { // Use the provided subset only $THEME->sheets = $THEME->standardsheets; } /// If we are a parent theme, then check for parent definitions } else if (!empty($THEME->parent) && $themename == $THEME->parent) { if (!isset($THEME->parentsheets) or $THEME->parentsheets === true) { // Use all the sheets we have $THEME->sheets = $DEFAULT_SHEET_LIST; } else if (empty($THEME->parentsheets)) { // We can stop right now! echo "/***** Nothing required from this stylesheet by main theme *****/\n\n"; exit; } else { // Use the provided subset only $THEME->sheets = $THEME->parentsheets; } } /// Work out the last modified date for this theme foreach ($THEME->sheets as $sheet) { if (file_exists($CFG->themedir.'/'.$themename.'/'.$sheet.'.css')) { $sheetmodified = filemtime($CFG->themedir.'/'.$themename.'/'.$sheet.'.css'); if ($sheetmodified > $lastmodified) { $lastmodified = $sheetmodified; } } } /// Get a list of all the files we want to include $files = array(); foreach ($THEME->sheets as $sheet) { $files[] = array($CFG->themedir, $themename.'/'.$sheet.'.css'); } if ($themename == 'standard') { // Add any standard styles included in any modules if (!empty($THEME->modsheets)) { // Search for styles.php within activity modules if ($mods = get_list_of_plugins('mod')) { foreach ($mods as $mod) { if (file_exists($CFG->dirroot.'/mod/'.$mod.'/styles.php')) { $files[] = array($CFG->dirroot, '/mod/'.$mod.'/styles.php'); } } } } if (!empty($THEME->blocksheets)) { // Search for styles.php within block modules if ($mods = get_list_of_plugins('blocks')) { foreach ($mods as $mod) { if (file_exists($CFG->dirroot.'/blocks/'.$mod.'/styles.php')) { $files[] = array($CFG->dirroot, '/blocks/'.$mod.'/styles.php'); } } } } if (!isset($THEME->courseformatsheets) || $THEME->courseformatsheets) { // Search for styles.php in course formats if ($mods = get_list_of_plugins('format','',$CFG->dirroot.'/course')) { foreach ($mods as $mod) { if (file_exists($CFG->dirroot.'/course/format/'.$mod.'/styles.php')) { $files[] = array($CFG->dirroot, '/course/format/'.$mod.'/styles.php'); } } } } if (!isset($THEME->gradereportsheets) || $THEME->gradereportsheets) { // Search for styles.php in grade reports if ($reports = get_list_of_plugins('grade/report')) { foreach ($reports as $report) { if (file_exists($CFG->dirroot.'/grade/report/'.$report.'/styles.php')) { $files[] = array($CFG->dirroot, '/grade/report/'.$report.'/styles.php'); } } } } if (!empty($THEME->langsheets)) { // Search for styles.php within the current language if (file_exists($CFG->dirroot.'/lang/'.$lang.'/styles.php')) { $files[] = array($CFG->dirroot, '/lang/'.$lang.'/styles.php'); } } } if ($files) { /// Produce a list of all the files first echo '/**************************************'."\n"; echo ' * THEME NAME: '.$themename."\n *\n"; echo ' * Files included in this sheet:'."\n *\n"; foreach ($files as $file) { echo ' * '.$file[1]."\n"; } echo ' **************************************/'."\n\n"; /// check if csscobstants is set if (!empty($THEME->cssconstants)) { require_once("$CFG->libdir/cssconstants.php"); /// Actually collect all the files in order. $css = ''; foreach ($files as $file) { $css .= '/***** '.$file[1].' start *****/'."\n\n"; $css .= file_get_contents($file[0].'/'.$file[1]); $ccs .= '/***** '.$file[1].' end *****/'."\n\n"; } /// replace css_constants with their values echo replace_cssconstants($css); } else { /// Actually output all the files in order. if (empty($CFG->CSSEdit) && empty($THEME->CSSEdit)) { foreach ($files as $file) { echo '/***** '.$file[1].' start *****/'."\n\n"; @include_once($file[0].'/'.$file[1]); echo '/***** '.$file[1].' end *****/'."\n\n"; } } else { foreach ($files as $file) { echo '/* @group '.$file[1].' */'."\n\n"; if (strstr($file[1], '.css') !== FALSE) { echo '@import url("'.$CFG->themewww.'/'.$file[1].'");'."\n\n"; } else { @include_once($file[0].'/'.$file[1]); } echo '/* @end */'."\n\n"; } } } } return $CFG->themewww.'/'.$themename; // Only to help old themes (1.4 and earlier) } function theme_setup($theme = '', $params=NULL) { /// Sets up global variables related to themes global $CFG, $THEME, $SESSION, $USER, $HTTPSPAGEREQUIRED; /// Do not mess with THEME if header already printed - this would break all the extra stuff in global $THEME from print_header()!! if (defined('HEADER_PRINTED')) { return; } if (empty($theme)) { $theme = current_theme(); } /// If the theme doesn't exist for some reason then revert to standardwhite if (!file_exists($CFG->themedir .'/'. $theme .'/config.php')) { $CFG->theme = $theme = 'standardwhite'; } /// Load up the theme config $THEME = NULL; // Just to be sure include($CFG->themedir .'/'. $theme .'/config.php'); // Main config for current theme /// Put together the parameters if (!$params) { $params = array(); } if ($theme != $CFG->theme) { $params[] = 'forceconfig='.$theme; } /// Force language too if required if (!empty($THEME->langsheets)) { $params[] = 'lang='.current_language(); } /// Convert params to string if ($params) { $paramstring = '?'.implode('&', $params); } else { $paramstring = ''; } /// Set up image paths if(isset($CFG->smartpix) && $CFG->smartpix==1) { if($CFG->slasharguments) { // Use this method if possible for better caching $extra=''; } else { $extra='?file='; } $CFG->pixpath = $CFG->wwwroot. '/pix/smartpix.php'.$extra.'/'.$theme; $CFG->modpixpath = $CFG->wwwroot .'/pix/smartpix.php'.$extra.'/'.$theme.'/mod'; } else if (empty($THEME->custompix)) { // Could be set in the above file $CFG->pixpath = $CFG->wwwroot .'/pix'; $CFG->modpixpath = $CFG->wwwroot .'/mod'; } else { $CFG->pixpath = $CFG->themewww .'/'. $theme .'/pix'; $CFG->modpixpath = $CFG->themewww .'/'. $theme .'/pix/mod'; } /// Header and footer paths $CFG->header = $CFG->themedir .'/'. $theme .'/header.html'; $CFG->footer = $CFG->themedir .'/'. $theme .'/footer.html'; /// Define stylesheet loading order $CFG->stylesheets = array(); if ($theme != 'standard') { /// The standard sheet is always loaded first $CFG->stylesheets[] = $CFG->themewww.'/standard/styles.php'.$paramstring; } if (!empty($THEME->parent)) { /// Parent stylesheets are loaded next $CFG->stylesheets[] = $CFG->themewww.'/'.$THEME->parent.'/styles.php'.$paramstring; } $CFG->stylesheets[] = $CFG->themewww.'/'.$theme.'/styles.php'.$paramstring; /// We have to change some URLs in styles if we are in a $HTTPSPAGEREQUIRED page if (!empty($HTTPSPAGEREQUIRED)) { $CFG->themewww = str_replace('http:', 'https:', $CFG->themewww); $CFG->pixpath = str_replace('http:', 'https:', $CFG->pixpath); $CFG->modpixpath = str_replace('http:', 'https:', $CFG->modpixpath); foreach ($CFG->stylesheets as $key => $stylesheet) { $CFG->stylesheets[$key] = str_replace('http:', 'https:', $stylesheet); } } // RTL support - only for RTL languages, add RTL CSS if (get_string('thisdirection') == 'rtl') { $CFG->stylesheets[] = $CFG->themewww.'/standard/rtl.css'.$paramstring; $CFG->stylesheets[] = $CFG->themewww.'/'.$theme.'/rtl.css'.$paramstring; } } /** * Returns text to be displayed to the user which reflects their login status * * @uses $CFG * @uses $USER * @param course $course {@link $COURSE} object containing course information * @param user $user {@link $USER} object containing user information * @return string */ function user_login_string($course=NULL, $user=NULL) { global $USER, $CFG, $SITE; if (empty($user) and !empty($USER->id)) { $user = $USER; } if (empty($course)) { $course = $SITE; } if (!empty($user->realuser)) { if ($realuser = get_record('user', 'id', $user->realuser)) { $fullname = fullname($realuser, true); $realuserinfo = " [<a $CFG->frametarget href=\"$CFG->wwwroot/course/loginas.php?id=$course->id&return=1&sesskey=".sesskey()."\">$fullname</a>] "; } } else { $realuserinfo = ''; } if (empty($CFG->loginhttps)) { $wwwroot = $CFG->wwwroot; } else { $wwwroot = str_replace('http:','https:',$CFG->wwwroot); } if (empty($course->id)) { // $course->id is not defined during installation return ''; } else if (!empty($user->id)) { $context = get_context_instance(CONTEXT_COURSE, $course->id); $fullname = fullname($user, true); $username = "<a $CFG->frametarget href=\"$CFG->wwwroot/user/view.php?id=$user->id&course=$course->id\">$fullname</a>"; if (is_mnet_remote_user($user) and $idprovider = get_record('mnet_host', 'id', $user->mnethostid)) { $username .= " from <a $CFG->frametarget href=\"{$idprovider->wwwroot}\">{$idprovider->name}</a>"; } if (isset($user->username) && $user->username == 'guest') { $loggedinas = $realuserinfo.get_string('loggedinasguest'). " (<a $CFG->frametarget href=\"$wwwroot/login/index.php\">".get_string('login').'</a>)'; } else if (!empty($user->access['rsw'][$context->path])) { $rolename = ''; if ($role = get_record('role', 'id', $user->access['rsw'][$context->path])) { $rolename = join("", role_fix_names(array($role->id=>$role->name), $context)); $rolename = ': '.format_string($rolename); } $loggedinas = get_string('loggedinas', 'moodle', $username).$rolename. " (<a $CFG->frametarget href=\"$CFG->wwwroot/course/view.php?id=$course->id&switchrole=0&sesskey=".sesskey()."\">".get_string('switchrolereturn').'</a>)'; } else { $loggedinas = $realuserinfo.get_string('loggedinas', 'moodle', $username).' '. " (<a $CFG->frametarget href=\"$CFG->wwwroot/login/logout.php?sesskey=".sesskey()."\">".get_string('logout').'</a>)'; } } else { $loggedinas = get_string('loggedinnot', 'moodle'). " (<a $CFG->frametarget href=\"$wwwroot/login/index.php\">".get_string('login').'</a>)'; } return '<div class="logininfo">'.$loggedinas.'</div>'; } /** * Tests whether $THEME->rarrow, $THEME->larrow have been set (theme/-/config.php). * If not it applies sensible defaults. * * Accessibility: right and left arrow Unicode characters for breadcrumb, calendar, * search forum block, etc. Important: these are 'silent' in a screen-reader * (unlike > »), and must be accompanied by text. * @uses $THEME */ function check_theme_arrows() { global $THEME; if (!isset($THEME->rarrow) and !isset($THEME->larrow)) { // Default, looks good in Win XP/IE 6, Win/Firefox 1.5, Win/Netscape 8... // Also OK in Win 9x/2K/IE 5.x $THEME->rarrow = '►'; $THEME->larrow = '◄'; if (empty($_SERVER['HTTP_USER_AGENT'])) { $uagent = ''; } else { $uagent = $_SERVER['HTTP_USER_AGENT']; } if (false !== strpos($uagent, 'Opera') || false !== strpos($uagent, 'Mac')) { // Looks good in Win XP/Mac/Opera 8/9, Mac/Firefox 2, Camino, Safari. // Not broken in Mac/IE 5, Mac/Netscape 7 (?). $THEME->rarrow = '▶'; $THEME->larrow = '◀'; } elseif (false !== strpos($uagent, 'Konqueror')) { $THEME->rarrow = '→'; $THEME->larrow = '←'; } elseif (isset($_SERVER['HTTP_ACCEPT_CHARSET']) && false === stripos($_SERVER['HTTP_ACCEPT_CHARSET'], 'utf-8')) { // (Win/IE 5 doesn't set ACCEPT_CHARSET, but handles Unicode.) // To be safe, non-Unicode browsers! $THEME->rarrow = '>'; $THEME->larrow = '<'; } /// RTL support - in RTL languages, swap r and l arrows if (right_to_left()) { $t = $THEME->rarrow; $THEME->rarrow = $THEME->larrow; $THEME->larrow = $t; } } } /** * Return the right arrow with text ('next'), and optionally embedded in a link. * See function above, check_theme_arrows. * @param string $text HTML/plain text label (set to blank only for breadcrumb separator cases). * @param string $url An optional link to use in a surrounding HTML anchor. * @param bool $accesshide True if text should be hidden (for screen readers only). * @param string $addclass Additional class names for the link, or the arrow character. * @return string HTML string. */ function link_arrow_right($text, $url='', $accesshide=false, $addclass='') { global $THEME; check_theme_arrows(); $arrowclass = 'arrow '; if (! $url) { $arrowclass .= $addclass; } $arrow = '<span class="'.$arrowclass.'">'.$THEME->rarrow.'</span>'; $htmltext = ''; if ($text) { $htmltext = $text.' '; if ($accesshide) { $htmltext = get_accesshide($htmltext); } } if ($url) { $class = ''; if ($addclass) { $class =" class=\"$addclass\""; } return '<a'.$class.' href="'.$url.'" title="'.preg_replace('/<.*?>/','',$text).'">'.$htmltext.$arrow.'</a>'; } return $htmltext.$arrow; } /** * Return the left arrow with text ('previous'), and optionally embedded in a link. * See function above, check_theme_arrows. * @param string $text HTML/plain text label (set to blank only for breadcrumb separator cases). * @param string $url An optional link to use in a surrounding HTML anchor. * @param bool $accesshide True if text should be hidden (for screen readers only). * @param string $addclass Additional class names for the link, or the arrow character. * @return string HTML string. */ function link_arrow_left($text, $url='', $accesshide=false, $addclass='') { global $THEME; check_theme_arrows(); $arrowclass = 'arrow '; if (! $url) { $arrowclass .= $addclass; } $arrow = '<span class="'.$arrowclass.'">'.$THEME->larrow.'</span>'; $htmltext = ''; if ($text) { $htmltext = ' '.$text; if ($accesshide) { $htmltext = get_accesshide($htmltext); } } if ($url) { $class = ''; if ($addclass) { $class =" class=\"$addclass\""; } return '<a'.$class.' href="'.$url.'" title="'.preg_replace('/<.*?>/','',$text).'">'.$arrow.$htmltext.'</a>'; } return $arrow.$htmltext; } /** * Return a HTML element with the class "accesshide", for accessibility. * Please use cautiously - where possible, text should be visible! * @param string $text Plain text. * @param string $elem Lowercase element name, default "span". * @param string $class Additional classes for the element. * @param string $attrs Additional attributes string in the form, "name='value' name2='value2'" * @return string HTML string. */ function get_accesshide($text, $elem='span', $class='', $attrs='') { return "<$elem class=\"accesshide $class\" $attrs>$text</$elem>"; } /** * Return the breadcrumb trail navigation separator. * @return string HTML string. */ function get_separator() { //Accessibility: the 'hidden' slash is preferred for screen readers. return ' '.link_arrow_right($text='/', $url='', $accesshide=true, 'sep').' '; } /** * Prints breadcrumb trail of links, called in theme/-/header.html * * @uses $CFG * @param mixed $navigation The breadcrumb navigation string to be printed * @param string $separator OBSOLETE, mostly not used any more. See build_navigation instead. * @param boolean $return False to echo the breadcrumb string (default), true to return it. * @return string or null, depending on $return. */ function print_navigation ($navigation, $separator=0, $return=false) { global $CFG, $THEME; $output = ''; if (0 === $separator) { $separator = get_separator(); } else { $separator = '<span class="sep">'. $separator .'</span>'; } if ($navigation) { if (is_newnav($navigation)) { if ($return) { return($navigation['navlinks']); } else { echo $navigation['navlinks']; return; } } else { debugging('Navigation needs to be updated to use build_navigation()', DEBUG_DEVELOPER); } if (!is_array($navigation)) { $ar = explode('->', $navigation); $navigation = array(); foreach ($ar as $a) { if (strpos($a, '</a>') === false) { $navigation[] = array('title' => $a, 'url' => ''); } else { if (preg_match('/<a.*href="([^"]*)">(.*)<\/a>/', $a, $matches)) { $navigation[] = array('title' => $matches[2], 'url' => $matches[1]); } } } } if (! $site = get_site()) { $site = new object(); $site->shortname = get_string('home'); } //Accessibility: breadcrumb links now in a list, » replaced with a 'silent' character. $output .= get_accesshide(get_string('youarehere','access'), 'h2')."<ul>\n"; $output .= '<li class="first">'."\n".'<a '.$CFG->frametarget.' onclick="this.target=\''.$CFG->framename.'\'" href="' .$CFG->wwwroot.((!has_capability('moodle/site:config', get_context_instance(CONTEXT_SYSTEM)) && !empty($USER->id) && !empty($CFG->mymoodleredirect) && !isguest()) ? '/my' : '') .'/">'. format_string($site->shortname) ."</a>\n</li>\n"; foreach ($navigation as $navitem) { $title = trim(strip_tags(format_string($navitem['title'], false))); $url = $navitem['url']; if (empty($url)) { $output .= '<li>'."$separator $title</li>\n"; } else { $output .= '<li>'."$separator\n<a ".$CFG->frametarget.' onclick="this.target=\''.$CFG->framename.'\'" href="' .$url.'">'."$title</a>\n</li>\n"; } } $output .= "</ul>\n"; } if ($return) { return $output; } else { echo $output; } } /** * This function will build the navigation string to be used by print_header * and others. * * It automatically generates the site and course level (if appropriate) links. * * If you pass in a $cm object, the method will also generate the activity (e.g. 'Forums') * and activityinstances (e.g. 'General Developer Forum') navigation levels. * * If you want to add any further navigation links after the ones this function generates, * the pass an array of extra link arrays like this: * array( * array('name' => $linktext1, 'link' => $url1, 'type' => $linktype1), * array('name' => $linktext2, 'link' => $url2, 'type' => $linktype2) * ) * The normal case is to just add one further link, for example 'Editing forum' after * 'General Developer Forum', with no link. * To do that, you need to pass * array(array('name' => $linktext, 'link' => '', 'type' => 'title')) * However, becuase this is a very common case, you can use a shortcut syntax, and just * pass the string 'Editing forum', instead of an array as $extranavlinks. * * At the moment, the link types only have limited significance. Type 'activity' is * recognised in order to implement the $CFG->hideactivitytypenavlink feature. Types * that are known to appear are 'home', 'course', 'activity', 'activityinstance' and 'title'. * This really needs to be documented better. In the mean time, try to be consistent, it will * enable people to customise the navigation more in future. * * When passing a $cm object, the fields used are $cm->modname, $cm->name and $cm->course. * If you get the $cm object using the function get_coursemodule_from_instance or * get_coursemodule_from_id (as recommended) then this will be done for you automatically. * If you don't have $cm->modname or $cm->name, this fuction will attempt to find them using * the $cm->module and $cm->instance fields, but this takes extra database queries, so a * warning is printed in developer debug mode. * * @uses $CFG * @uses $THEME * * @param mixed $extranavlinks - Normally an array of arrays, keys: name, link, type. If you * only want one extra item with no link, you can pass a string instead. If you don't want * any extra links, pass an empty string. * @param mixed $cm - optionally the $cm object, if you want this function to generate the * activity and activityinstance levels of navigation too. * * @return $navigation as an object so it can be differentiated from old style * navigation strings. */ function build_navigation($extranavlinks, $cm = null) { global $CFG, $COURSE; if (is_string($extranavlinks)) { if ($extranavlinks == '') { $extranavlinks = array(); } else { $extranavlinks = array(array('name' => $extranavlinks, 'link' => '', 'type' => 'title')); } } $navlinks = array(); //Site name if ($site = get_site()) { $navlinks[] = array( 'name' => format_string($site->shortname), 'link' => "$CFG->wwwroot/", 'type' => 'home'); } // Course name, if appropriate. if (isset($COURSE) && $COURSE->id != SITEID) { $navlinks[] = array( 'name' => format_string($COURSE->shortname), 'link' => "$CFG->wwwroot/course/view.php?id=$COURSE->id", 'type' => 'course'); } // Activity type and instance, if appropriate. if (is_object($cm)) { if (!isset($cm->modname)) { debugging('The field $cm->modname should be set if you call build_navigation with '. 'a $cm parameter. If you get $cm using get_coursemodule_from_instance or '. 'get_coursemodule_from_id, this will be done automatically.', DEBUG_DEVELOPER); if (!$cm->modname = get_field('modules', 'name', 'id', $cm->module)) { error('Cannot get the module type in build navigation.'); } } if (!isset($cm->name)) { debugging('The field $cm->name should be set if you call build_navigation with '. 'a $cm parameter. If you get $cm using get_coursemodule_from_instance or '. 'get_coursemodule_from_id, this will be done automatically.', DEBUG_DEVELOPER); if (!$cm->name = get_field($cm->modname, 'name', 'id', $cm->instance)) { error('Cannot get the module name in build navigation.'); } } $navlinks[] = array( 'name' => get_string('modulenameplural', $cm->modname), 'link' => $CFG->wwwroot . '/mod/' . $cm->modname . '/index.php?id=' . $cm->course, 'type' => 'activity'); $navlinks[] = array( 'name' => format_string($cm->name), 'link' => $CFG->wwwroot . '/mod/' . $cm->modname . '/view.php?id=' . $cm->id, 'type' => 'activityinstance'); } //Merge in extra navigation links $navlinks = array_merge($navlinks, $extranavlinks); // Work out whether we should be showing the activity (e.g. Forums) link. // Note: build_navigation() is called from many places -- // install & upgrade for example -- where we cannot count on the // roles infrastructure to be defined. Hence the $CFG->rolesactive check. if (!isset($CFG->hideactivitytypenavlink)) { $CFG->hideactivitytypenavlink = 0; } if ($CFG->hideactivitytypenavlink == 2) { $hideactivitylink = true; } else if ($CFG->hideactivitytypenavlink == 1 && $CFG->rolesactive && !empty($COURSE->id) && $COURSE->id != SITEID) { if (!isset($COURSE->context)) { $COURSE->context = get_context_instance(CONTEXT_COURSE, $COURSE->id); } $hideactivitylink = !has_capability('moodle/course:manageactivities', $COURSE->context); } else { $hideactivitylink = false; } //Construct an unordered list from $navlinks //Accessibility: heading hidden from visual browsers by default. $navigation = get_accesshide(get_string('youarehere','access'), 'h2')." <ul>\n"; $lastindex = count($navlinks) - 1; $i = -1; // Used to count the times, so we know when we get to the last item. $first = true; foreach ($navlinks as $navlink) { $i++; $last = ($i == $lastindex); if (!is_array($navlink)) { continue; } if (!empty($navlink['type']) && $navlink['type'] == 'activity' && !$last && $hideactivitylink) { continue; } if ($first) { $navigation .= '<li class="first">'; } else { $navigation .= '<li>'; } if (!$first) { $navigation .= get_separator(); } if ((!empty($navlink['link'])) && !$last) { $navigation .= "<a $CFG->frametarget onclick=\"this.target='$CFG->framename'\" href=\"{$navlink['link']}\">"; } $navigation .= "{$navlink['name']}"; if ((!empty($navlink['link'])) && !$last) { $navigation .= "</a>"; } $navigation .= "</li>"; $first = false; } $navigation .= "</ul>"; return(array('newnav' => true, 'navlinks' => $navigation)); } /** * Prints a string in a specified size (retained for backward compatibility) * * @param string $text The text to be displayed * @param int $size The size to set the font for text display. */ function print_headline($text, $size=2, $return=false) { $output = print_heading($text, '', $size, true); if ($return) { return $output; } else { echo $output; } } /** * Prints text in a format for use in headings. * * @param string $text The text to be displayed * @param string $align The alignment of the printed paragraph of text * @param int $size The size to set the font for text display. */ function print_heading($text, $align='', $size=2, $class='main', $return=false) { if ($align) { $align = ' style="text-align:'.$align.';"'; } if ($class) { $class = ' class="'.$class.'"'; } $output = "<h$size $align $class>".stripslashes_safe($text)."</h$size>"; if ($return) { return $output; } else { echo $output; } } /** * Centered heading with attached help button (same title text) * and optional icon attached * * @param string $text The text to be displayed * @param string $helppage The help page to link to * @param string $module The module whose help should be linked to * @param string $icon Image to display if needed */ function print_heading_with_help($text, $helppage, $module='moodle', $icon='', $return=false) { $output = ''; $output .= '<h2 class="main help">'.$icon.stripslashes_safe($text); $output .= helpbutton($helppage, $text, $module, true, false, '', true); $output .= '</h2>'; if ($return) { return $output; } else { echo $output; } } function print_heading_block($heading, $class='', $return=false) { //Accessibility: 'headingblock' is now H1, see theme/standard/styles_*.css: ?? $output = '<h2 class="headingblock header '.$class.'">'.stripslashes($heading).'</h2>'; if ($return) { return $output; } else { echo $output; } } /** * Print a link to continue on to another page. * * @uses $CFG * @param string $link The url to create a link to. */ function print_continue($link, $return=false) { global $CFG; // in case we are logging upgrade in admin/index.php stop it if (function_exists('upgrade_log_finish')) { upgrade_log_finish(); } $output = ''; if ($link == '') { if (!empty($_SERVER['HTTP_REFERER'])) { $link = $_SERVER['HTTP_REFERER']; $link = str_replace('&', '&', $link); // make it valid XHTML } else { $link = $CFG->wwwroot .'/'; } } $options = array(); $linkparts = parse_url(str_replace('&', '&', $link)); if (isset($linkparts['query'])) { parse_str($linkparts['query'], $options); } $output .= '<div class="continuebutton">'; $output .= print_single_button($link, $options, get_string('continue'), 'get', $CFG->framename, true); $output .= '</div>'."\n"; if ($return) { return $output; } else { echo $output; } } /** * Print a message in a standard themed box. * Replaces print_simple_box (see deprecatedlib.php) * * @param string $message, the content of the box * @param string $classes, space-separated class names. * @param string $idbase * @param boolean $return, return as string or just print it * @return mixed string or void */ function print_box($message, $classes='generalbox', $ids='', $return=false) { $output = print_box_start($classes, $ids, true); $output .= stripslashes_safe($message); $output .= print_box_end(true); if ($return) { return $output; } else { echo $output; } } /** * Starts a box using divs * Replaces print_simple_box_start (see deprecatedlib.php) * * @param string $classes, space-separated class names. * @param string $idbase * @param boolean $return, return as string or just print it * @return mixed string or void */ function print_box_start($classes='generalbox', $ids='', $return=false) { global $THEME; if (strpos($classes, 'clearfix') !== false) { $clearfix = true; $classes = trim(str_replace('clearfix', '', $classes)); } else { $clearfix = false; } if (!empty($THEME->customcorners)) { $classes .= ' ccbox box'; } else { $classes .= ' box'; } return print_container_start($clearfix, $classes, $ids, $return); } /** * Simple function to end a box (see above) * Replaces print_simple_box_end (see deprecatedlib.php) * * @param boolean $return, return as string or just print it */ function print_box_end($return=false) { return print_container_end($return); } /** * Print a message in a standard themed container. * * @param string $message, the content of the container * @param boolean $clearfix clear both sides * @param string $classes, space-separated class names. * @param string $idbase * @param boolean $return, return as string or just print it * @return string or void */ function print_container($message, $clearfix=false, $classes='', $idbase='', $return=false) { $output = print_container_start($clearfix, $classes, $idbase, true); $output .= stripslashes_safe($message); $output .= print_container_end(true); if ($return) { return $output; } else { echo $output; } } /** * Starts a container using divs * * @param boolean $clearfix clear both sides * @param string $classes, space-separated class names. * @param string $idbase * @param boolean $return, return as string or just print it * @return mixed string or void */ function print_container_start($clearfix=false, $classes='', $idbase='', $return=false) { global $THEME; if (!isset($THEME->open_containers)) { $THEME->open_containers = array(); } $THEME->open_containers[] = $idbase; if (!empty($THEME->customcorners)) { $output = _print_custom_corners_start($clearfix, $classes, $idbase); } else { if ($idbase) { $id = ' id="'.$idbase.'"'; } else { $id = ''; } if ($clearfix) { $clearfix = ' clearfix'; } else { $clearfix = ''; } if ($classes or $clearfix) { $class = ' class="'.$classes.$clearfix.'"'; } else { $class = ''; } $output = '<div'.$id.$class.'>'; } if ($return) { return $output; } else { echo $output; } } /** * Simple function to end a container (see above) * @param boolean $return, return as string or just print it * @return mixed string or void */ function print_container_end($return=false) { global $THEME; if (empty($THEME->open_containers)) { debugging('Incorrect request to end container - no more open containers.', DEBUG_DEVELOPER); $idbase = ''; } else { $idbase = array_pop($THEME->open_containers); } if (!empty($THEME->customcorners)) { $output = _print_custom_corners_end($idbase); } else { $output = '</div>'; } if ($return) { return $output; } else { echo $output; } } /** * Returns number of currently open containers * @return int number of open containers */ function open_containers() { global $THEME; if (!isset($THEME->open_containers)) { $THEME->open_containers = array(); } return count($THEME->open_containers); } /** * Force closing of open containers * @param boolean $return, return as string or just print it * @param int $keep number of containers to be kept open - usually theme or page containers * @return mixed string or void */ function print_container_end_all($return=false, $keep=0) { $output = ''; while (open_containers() > $keep) { $output .= print_container_end($return); } if ($return) { return $output; } else { echo $output; } } /** * Internal function - do not use directly! * Starting part of the surrounding divs for custom corners * * @param boolean $clearfix, add CLASS "clearfix" to the inner div against collapsing * @param string $classes * @param mixed $idbase, optionally, define one idbase to be added to all the elements in the corners * @return string */ function _print_custom_corners_start($clearfix=false, $classes='', $idbase='') { /// Analise if we want ids for the custom corner elements $id = ''; $idbt = ''; $idi1 = ''; $idi2 = ''; $idi3 = ''; if ($idbase) { $id = 'id="'.$idbase.'" '; $idbt = 'id="'.$idbase.'-bt" '; $idi1 = 'id="'.$idbase.'-i1" '; $idi2 = 'id="'.$idbase.'-i2" '; $idi3 = 'id="'.$idbase.'-i3" '; } /// Calculate current level $level = open_containers(); /// Output begins $output = '<div '.$id.'class="wrap wraplevel'.$level.' '.$classes.'">'."\n"; $output .= '<div '.$idbt.'class="bt"><div> </div></div>'; $output .= "\n"; $output .= '<div '.$idi1.'class="i1"><div '.$idi2.'class="i2">'; $output .= (!empty($clearfix)) ? '<div '.$idi3.'class="i3 clearfix">' : '<div '.$idi3.'class="i3">'; return $output; } /** * Internal function - do not use directly! * Ending part of the surrounding divs for custom corners * @param string $idbase * @return string */ function _print_custom_corners_end($idbase) { /// Analise if we want ids for the custom corner elements $idbb = ''; if ($idbase) { $idbb = 'id="' . $idbase . '-bb" '; } /// Output begins $output = '</div></div></div>'; $output .= "\n"; $output .= '<div '.$idbb.'class="bb"><div> </div></div>'."\n"; $output .= '</div>'; return $output; } /** * Print a self contained form with a single submit button. * * @param string $link used as the action attribute on the form, so the URL that will be hit if the button is clicked. * @param array $options these become hidden form fields, so these options get passed to the script at $link. * @param string $label the caption that appears on the button. * @param string $method HTTP method used on the request of the button is clicked. 'get' or 'post'. * @param string $target no longer used. * @param boolean $return if false, output the form directly, otherwise return the HTML as a string. * @param string $tooltip a tooltip to add to the button as a title attribute. * @param boolean $disabled if true, the button will be disabled. * @param string $jsconfirmmessage if not empty then display a confirm dialogue with this string as the question. * @return string / nothing depending on the $return paramter. */ function print_single_button($link, $options, $label='OK', $method='get', $target='_self', $return=false, $tooltip='', $disabled = false, $jsconfirmmessage='') { $output = ''; $link = str_replace('"', '"', $link); //basic XSS protection $output .= '<div class="singlebutton">'; // taking target out, will need to add later target="'.$target.'" $output .= '<form action="'. $link .'" method="'. $method .'">'; $output .= '<div>'; if ($options) { foreach ($options as $name => $value) { $output .= '<input type="hidden" name="'. $name .'" value="'. s($value) .'" />'; } } if ($tooltip) { $tooltip = 'title="' . s($tooltip) . '"'; } else { $tooltip = ''; } if ($disabled) { $disabled = 'disabled="disabled"'; } else { $disabled = ''; } if ($jsconfirmmessage){ $jsconfirmmessage = addslashes_js($jsconfirmmessage); $jsconfirmmessage = 'onclick="return confirm(\''. $jsconfirmmessage .'\');" '; } $output .= '<input type="submit" value="'. s($label) ."\" $tooltip $disabled $jsconfirmmessage/></div></form></div>"; if ($return) { return $output; } else { echo $output; } } /** * Print a spacer image with the option of including a line break. * * @param int $height ? * @param int $width ? * @param boolean $br ? * @todo Finish documenting this function */ function print_spacer($height=1, $width=1, $br=true, $return=false) { global $CFG; $output = ''; $output .= '<img class="spacer" height="'. $height .'" width="'. $width .'" src="'. $CFG->wwwroot .'/pix/spacer.gif" alt="" />'; if ($br) { $output .= '<br />'."\n"; } if ($return) { return $output; } else { echo $output; } } /** * Given the path to a picture file in a course, or a URL, * this function includes the picture in the page. * * @param string $path ? * @param int $courseid ? * @param int $height ? * @param int $width ? * @param string $link ? * @todo Finish documenting this function */ function print_file_picture($path, $courseid=0, $height='', $width='', $link='', $return=false) { global $CFG; $output = ''; if ($height) { $height = 'height="'. $height .'"'; } if ($width) { $width = 'width="'. $width .'"'; } if ($link) { $output .= '<a href="'. $link .'">'; } if (substr(strtolower($path), 0, 7) == 'http://') { $output .= '<img style="height:'.$height.'px;width:'.$width.'px;" src="'. $path .'" />'; } else if ($courseid) { $output .= '<img style="height:'.$height.'px;width:'.$width.'px;" src="'; require_once($CFG->libdir.'/filelib.php'); $output .= get_file_url("$courseid/$path"); $output .= '" />'; } else { $output .= 'Error: must pass URL or course'; } if ($link) { $output .= '</a>'; } if ($return) { return $output; } else { echo $output; } } /** * Print the specified user's avatar. * * @param mixed $user Should be a $user object with at least fields id, picture, imagealt, firstname, lastname * If any of these are missing, or if a userid is passed, the the database is queried. Avoid this * if at all possible, particularly for reports. It is very bad for performance. * @param int $courseid The course id. Used when constructing the link to the user's profile. * @param boolean $picture The picture to print. By default (or if NULL is passed) $user->picture is used. * @param int $size Size in pixels. Special values are (true/1 = 100px) and (false/0 = 35px) for backward compatability * @param boolean $return If false print picture to current page, otherwise return the output as string * @param boolean $link enclose printed image in a link the user's profile (default true). * @param string $target link target attribute. Makes the profile open in a popup window. * @param boolean $alttext add non-blank alt-text to the image. (Default true, set to false for purely * decorative images, or where the username will be printed anyway.) * @return string or nothing, depending on $return. */ function print_user_picture($user, $courseid, $picture=NULL, $size=0, $return=false, $link=true, $target='', $alttext=true) { global $CFG; $needrec = false; // only touch the DB if we are missing data... if (is_object($user)) { // Note - both picture and imagealt _can_ be empty // what we are trying to see here is if they have been fetched // from the DB. We should use isset() _except_ that some installs // have those fields as nullable, and isset() will return false // on null. The only safe thing is to ask array_key_exists() // which works on objects. property_exists() isn't quite // what we want here... if (! (array_key_exists('picture', $user) && ($alttext && array_key_exists('imagealt', $user) || (isset($user->firstname) && isset($user->lastname)))) ) { $needrec = true; $user = $user->id; } } else { if ($alttext) { // we need firstname, lastname, imagealt, can't escape... $needrec = true; } else { $userobj = new StdClass; // fake it to save DB traffic $userobj->id = $user; $userobj->picture = $picture; $user = clone($userobj); unset($userobj); } } if ($needrec) { $user = get_record('user','id',$user, '', '', '', '', 'id,firstname,lastname,imagealt'); } if ($link) { $url = '/user/view.php?id='. $user->id .'&course='. $courseid ; if ($target) { $target='onclick="return openpopup(\''.$url.'\');"'; } $output = '<a '.$target.' href="'. $CFG->wwwroot . $url .'">'; } else { $output = ''; } if (empty($size)) { $file = 'f2'; $size = 35; } else if ($size === true or $size == 1) { $file = 'f1'; $size = 100; } else if ($size >= 50) { $file = 'f1'; } else { $file = 'f2'; } $class = "userpicture"; if (is_null($picture) and !empty($user->picture)) { $picture = $user->picture; } if ($picture) { // Print custom user picture require_once($CFG->libdir.'/filelib.php'); $src = get_file_url($user->id.'/'.$file.'.jpg', null, 'user'); } else { // Print default user pictures (use theme version if available) $class .= " defaultuserpic"; $src = "$CFG->pixpath/u/$file.png"; } $imagealt = ''; if ($alttext) { if (!empty($user->imagealt)) { $imagealt = $user->imagealt; } else { $imagealt = get_string('pictureof','',fullname($user)); } } $output .= "<img class=\"$class\" src=\"$src\" height=\"$size\" width=\"$size\" title=\"".s($imagealt)."\" alt=\"".s($imagealt).'" />'; if ($link) { $output .= '</a>'; } if ($return) { return $output; } else { echo $output; } } /** * Prints a summary of a user in a nice little box. * * @uses $CFG * @uses $USER * @param user $user A {@link $USER} object representing a user * @param course $course A {@link $COURSE} object representing a course */ function print_user($user, $course, $messageselect=false, $return=false) { global $CFG, $USER; $output = ''; static $string; static $datestring; static $countries; $context = get_context_instance(CONTEXT_COURSE, $course->id); if (isset($user->context->id)) { $usercontext = $user->context; } else { $usercontext = get_context_instance(CONTEXT_USER, $user->id); } if (empty($string)) { // Cache all the strings for the rest of the page $string->email = get_string('email'); $string->city = get_string('city'); $string->lastaccess = get_string('lastaccess'); $string->activity = get_string('activity'); $string->unenrol = get_string('unenrol'); $string->loginas = get_string('loginas'); $string->fullprofile = get_string('fullprofile'); $string->role = get_string('role'); $string->name = get_string('name'); $string->never = get_string('never'); $datestring->day = get_string('day'); $datestring->days = get_string('days'); $datestring->hour = get_string('hour'); $datestring->hours = get_string('hours'); $datestring->min = get_string('min'); $datestring->mins = get_string('mins'); $datestring->sec = get_string('sec'); $datestring->secs = get_string('secs'); $datestring->year = get_string('year'); $datestring->years = get_string('years'); $countries = get_list_of_countries(); } /// Get the hidden field list if (has_capability('moodle/course:viewhiddenuserfields', $context)) { $hiddenfields = array(); } else { $hiddenfields = array_flip(explode(',', $CFG->hiddenuserfields)); } $output .= '<table class="userinfobox">'; $output .= '<tr>'; $output .= '<td class="left side">'; $output .= print_user_picture($user, $course->id, $user->picture, true, true); $output .= '</td>'; $output .= '<td class="content">'; $output .= '<div class="username">'.fullname($user, has_capability('moodle/site:viewfullnames', $context)).'</div>'; $output .= '<div class="info">'; if (!empty($user->role) and ($user->role <> $course->teacher)) { $output .= $string->role .': '. $user->role .'<br />'; } if ($user->maildisplay == 1 or ($user->maildisplay == 2 and ($course->id != SITEID) and !isguest()) or has_capability('moodle/course:viewhiddenuserfields', $context)) { $output .= $string->email .': <a href="mailto:'. $user->email .'">'. $user->email .'</a><br />'; } if (($user->city or $user->country) and (!isset($hiddenfields['city']) or !isset($hiddenfields['country']))) { $output .= $string->city .': '; if ($user->city && !isset($hiddenfields['city'])) { $output .= $user->city; } if (!empty($countries[$user->country]) && !isset($hiddenfields['country'])) { if ($user->city && !isset($hiddenfields['city'])) { $output .= ', '; } $output .= $countries[$user->country]; } $output .= '<br />'; } if (!isset($hiddenfields['lastaccess'])) { if ($user->lastaccess) { $output .= $string->lastaccess .': '. userdate($user->lastaccess); $output .= ' ('. format_time(time() - $user->lastaccess, $datestring) .')'; } else { $output .= $string->lastaccess .': '. $string->never; } } $output .= '</div></td><td class="links">'; //link to blogs if ($CFG->bloglevel > 0) { $output .= '<a href="'.$CFG->wwwroot.'/blog/index.php?userid='.$user->id.'">'.get_string('blogs','blog').'</a><br />'; } //link to notes if (!empty($CFG->enablenotes) and (has_capability('moodle/notes:manage', $context) || has_capability('moodle/notes:view', $context))) { $output .= '<a href="'.$CFG->wwwroot.'/notes/index.php?course=' . $course->id. '&user='.$user->id.'">'.get_string('notes','notes').'</a><br />'; } if (has_capability('moodle/site:viewreports', $context) or has_capability('moodle/user:viewuseractivitiesreport', $usercontext)) { $output .= '<a href="'. $CFG->wwwroot .'/course/user.php?id='. $course->id .'&user='. $user->id .'">'. $string->activity .'</a><br />'; } if (has_capability('moodle/role:assign', $context) and get_user_roles($context, $user->id, false)) { // I can unassing and user has some role $output .= '<a href="'. $CFG->wwwroot .'/course/unenrol.php?id='. $course->id .'&user='. $user->id .'">'. $string->unenrol .'</a><br />'; } if ($USER->id != $user->id && empty($USER->realuser) && has_capability('moodle/user:loginas', $context) && ! has_capability('moodle/site:doanything', $context, $user->id, false)) { $output .= '<a href="'. $CFG->wwwroot .'/course/loginas.php?id='. $course->id .'&user='. $user->id .'&sesskey='. sesskey() .'">'. $string->loginas .'</a><br />'; } $output .= '<a href="'. $CFG->wwwroot .'/user/view.php?id='. $user->id .'&course='. $course->id .'">'. $string->fullprofile .'...</a>'; if (!empty($messageselect)) { $output .= '<br /><input type="checkbox" name="user'.$user->id.'" /> '; } $output .= '</td></tr></table>'; if ($return) { return $output; } else { echo $output; } } /** * Print a specified group's avatar. * * @param group $group A single {@link group} object OR array of groups. * @param int $courseid The course ID. * @param boolean $large Default small picture, or large. * @param boolean $return If false print picture, otherwise return the output as string * @param boolean $link Enclose image in a link to view specified course? * @return string * @todo Finish documenting this function */ function print_group_picture($group, $courseid, $large=false, $return=false, $link=true) { global $CFG; if (is_array($group)) { $output = ''; foreach($group as $g) { $output .= print_group_picture($g, $courseid, $large, true, $link); } if ($return) { return $output; } else { echo $output; return; } } $context = get_context_instance(CONTEXT_COURSE, $courseid); // If there is no picture, do nothing if (!$group->picture) { return ''; } // If picture is hidden, only show to those with course:managegroups if ($group->hidepicture and !has_capability('moodle/course:managegroups', $context)) { return ''; } if ($link or has_capability('moodle/site:accessallgroups', $context)) { $output = '<a href="'. $CFG->wwwroot .'/user/index.php?id='. $courseid .'&group='. $group->id .'">'; } else { $output = ''; } if ($large) { $file = 'f1'; } else { $file = 'f2'; } // Print custom group picture require_once($CFG->libdir.'/filelib.php'); $grouppictureurl = get_file_url($group->id.'/'.$file.'.jpg', null, 'usergroup'); $output .= '<img class="grouppicture" src="'.$grouppictureurl.'"'. ' alt="'.s(get_string('group').' '.$group->name).'" title="'.s($group->name).'"/>'; if ($link or has_capability('moodle/site:accessallgroups', $context)) { $output .= '</a>'; } if ($return) { return $output; } else { echo $output; } } /** * Print a png image. * * @param string $url ? * @param int $sizex ? * @param int $sizey ? * @param boolean $return ? * @param string $parameters ? * @todo Finish documenting this function */ function print_png($url, $sizex, $sizey, $return, $parameters='alt=""') { global $CFG; static $recentIE; if (!isset($recentIE)) { $recentIE = check_browser_version('MSIE', '5.0'); } if ($recentIE) { // work around the HORRIBLE bug IE has with alpha transparencies $output .= '<img src="'. $CFG->pixpath .'/spacer.gif" width="'. $sizex .'" height="'. $sizey .'"'. ' class="png" style="width: '. $sizex .'px; height: '. $sizey .'px; '. ' filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src='. "'$url', sizingMethod='scale') ". ' '. $parameters .' />'; } else { $output .= '<img src="'. $url .'" style="width: '. $sizex .'px; height: '. $sizey .'px; '. $parameters .' />'; } if ($return) { return $output; } else { echo $output; } } /** * Print a nicely formatted table. * * @param array $table is an object with several properties. * <ul> * <li>$table->head - An array of heading names. * <li>$table->align - An array of column alignments * <li>$table->size - An array of column sizes * <li>$table->wrap - An array of "nowrap"s or nothing * <li>$table->data[] - An array of arrays containing the data. * <li>$table->width - A percentage of the page * <li>$table->tablealign - Align the whole table * <li>$table->cellpadding - Padding on each cell * <li>$table->cellspacing - Spacing between cells * <li>$table->class - class attribute to put on the table * <li>$table->id - id attribute to put on the table. * <li>$table->rowclass[] - classes to add to particular rows. * <li>$table->summary - Description of the contents for screen readers. * </ul> * @param bool $return whether to return an output string or echo now * @return boolean or $string * @todo Finish documenting this function */ function print_table($table, $return=false) { $output = ''; if (isset($table->align)) { foreach ($table->align as $key => $aa) { if ($aa) { $align[$key] = ' text-align:'. fix_align_rtl($aa) .';'; // Fix for RTL languages } else { $align[$key] = ''; } } } if (isset($table->size)) { foreach ($table->size as $key => $ss) { if ($ss) { $size[$key] = ' width:'. $ss .';'; } else { $size[$key] = ''; } } } if (isset($table->wrap)) { foreach ($table->wrap as $key => $ww) { if ($ww) { $wrap[$key] = ' white-space:nowrap;'; } else { $wrap[$key] = ''; } } } if (empty($table->width)) { $table->width = '80%'; } if (empty($table->tablealign)) { $table->tablealign = 'center'; } if (!isset($table->cellpadding)) { $table->cellpadding = '5'; } if (!isset($table->cellspacing)) { $table->cellspacing = '1'; } if (empty($table->class)) { $table->class = 'generaltable'; } $tableid = empty($table->id) ? '' : 'id="'.$table->id.'"'; $output .= '<table width="'.$table->width.'" '; if (!empty($table->summary)) { $output .= " summary=\"$table->summary\""; } $output .= " cellpadding=\"$table->cellpadding\" cellspacing=\"$table->cellspacing\" class=\"$table->class boxalign$table->tablealign\" $tableid>\n"; $countcols = 0; if (!empty($table->head)) { $countcols = count($table->head); $output .= '<tr>'; $keys=array_keys($table->head); $lastkey = end($keys); foreach ($table->head as $key => $heading) { if (!isset($size[$key])) { $size[$key] = ''; } if (!isset($align[$key])) { $align[$key] = ''; } if ($key == $lastkey) { $extraclass = ' lastcol'; } else { $extraclass = ''; } $output .= '<th style="vertical-align:top;'. $align[$key].$size[$key] .';white-space:nowrap;" class="header c'.$key.$extraclass.'" scope="col">'. $heading .'</th>'; } $output .= '</tr>'."\n"; } if (!empty($table->data)) { $oddeven = 1; $keys=array_keys($table->data); $lastrowkey = end($keys); foreach ($table->data as $key => $row) { $oddeven = $oddeven ? 0 : 1; if (!isset($table->rowclass[$key])) { $table->rowclass[$key] = ''; } if ($key == $lastrowkey) { $table->rowclass[$key] .= ' lastrow'; } $output .= '<tr class="r'.$oddeven.' '.$table->rowclass[$key].'">'."\n"; if ($row == 'hr' and $countcols) { $output .= '<td colspan="'. $countcols .'"><div class="tabledivider"></div></td>'; } else { /// it's a normal row of data $keys2=array_keys($row); $lastkey = end($keys2); foreach ($row as $key => $item) { if (!isset($size[$key])) { $size[$key] = ''; } if (!isset($align[$key])) { $align[$key] = ''; } if (!isset($wrap[$key])) { $wrap[$key] = ''; } if ($key == $lastkey) { $extraclass = ' lastcol'; } else { $extraclass = ''; } $output .= '<td style="'. $align[$key].$size[$key].$wrap[$key] .'" class="cell c'.$key.$extraclass.'">'. $item .'</td>'; } } $output .= '</tr>'."\n"; } } $output .= '</table>'."\n"; if ($return) { return $output; } echo $output; return true; } function print_recent_activity_note($time, $user, $text, $link, $return=false, $viewfullnames=null) { static $strftimerecent = null; $output = ''; if (is_null($viewfullnames)) { $context = get_context_instance(CONTEXT_SYSTEM); $viewfullnames = has_capability('moodle/site:viewfullnames', $context); } if (is_null($strftimerecent)) { $strftimerecent = get_string('strftimerecent'); } $output .= '<div class="head">'; $output .= '<div class="date">'.userdate($time, $strftimerecent).'</div>'; $output .= '<div class="name">'.fullname($user, $viewfullnames).'</div>'; $output .= '</div>'; $output .= '<div class="info"><a href="'.$link.'">'.format_string($text,true).'</a></div>'; if ($return) { return $output; } else { echo $output; } } /** * Prints a basic textarea field. * * @uses $CFG * @param boolean $usehtmleditor ? * @param int $rows ? * @param int $cols ? * @param null $width <b>Legacy field no longer used!</b> Set to zero to get control over mincols * @param null $height <b>Legacy field no longer used!</b> Set to zero to get control over minrows * @param string $name ? * @param string $value ? * @param int $courseid ? * @todo Finish documenting this function */ function print_textarea($usehtmleditor, $rows, $cols, $width, $height, $name, $value='', $courseid=0, $return=false, $id='') { /// $width and height are legacy fields and no longer used as pixels like they used to be. /// However, you can set them to zero to override the mincols and minrows values below. global $CFG, $COURSE, $HTTPSPAGEREQUIRED; static $scriptcount = 0; // For loading the htmlarea script only once. $mincols = 65; $minrows = 10; $str = ''; if ($id === '') { $id = 'edit-'.$name; } if ( empty($CFG->editorsrc) ) { // for backward compatibility. if (empty($courseid)) { $courseid = $COURSE->id; } if ($usehtmleditor) { if (!empty($courseid) and has_capability('moodle/course:managefiles', get_context_instance(CONTEXT_COURSE, $courseid))) { $httpsrequired = empty($HTTPSPAGEREQUIRED) ? '' : '&httpsrequired=1'; // needed for course file area browsing in image insert plugin $str .= ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->httpswwwroot .'/lib/editor/htmlarea/htmlarea.php?id='.$courseid.$httpsrequired.'"></script>'."\n" : ''; } else { $httpsrequired = empty($HTTPSPAGEREQUIRED) ? '' : '?httpsrequired=1'; $str .= ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->httpswwwroot .'/lib/editor/htmlarea/htmlarea.php'.$httpsrequired.'"></script>'."\n" : ''; } $str .= ($scriptcount < 1) ? '<script type="text/javascript" src="'. $CFG->httpswwwroot .'/lib/editor/htmlarea/lang/en.php?id='.$courseid.'"></script>'."\n" : ''; $scriptcount++; if ($height) { // Usually with legacy calls if ($rows < $minrows) { $rows = $minrows; } } if ($width) { // Usually with legacy calls if ($cols < $mincols) { $cols = $mincols; } } } } $str .= '<textarea class="form-textarea" id="'. $id .'" name="'. $name .'" rows="'. $rows .'" cols="'. $cols .'">'; if ($usehtmleditor) { $str .= htmlspecialchars($value); // needed for editing of cleaned text! } else { $str .= s($value); } $str .= '</textarea>'."\n"; if ($usehtmleditor) { // Show shortcuts button if HTML editor is in use, but only if JavaScript is enabled (MDL-9556) $str .= '<script type="text/javascript"> //<![CDATA[ document.write(\''.addslashes_js(editorshortcutshelpbutton()).'\'); //]]> </script>'; } if ($return) { return $str; } echo $str; } /** * Sets up the HTML editor on textareas in the current page. * If a field name is provided, then it will only be * applied to that field - otherwise it will be used * on every textarea in the page. * * In most cases no arguments need to be supplied * * @param string $name Form element to replace with HTMl editor by name */ function use_html_editor($name='', $editorhidebuttons='', $id='') { global $THEME; $editor = 'editor_'.md5($name); //name might contain illegal characters if ($id === '') { $id = 'edit-'.$name; } echo "\n".'<script type="text/javascript" defer="defer">'."\n"; echo '//<![CDATA['."\n\n"; // Extra \n is to fix odd wiki problem, MDL-8185 echo "$editor = new HTMLArea('$id');\n"; echo "var config = $editor.config;\n"; echo print_editor_config($editorhidebuttons); if (empty($THEME->htmleditorpostprocess)) { if (empty($name)) { echo "\nHTMLArea.replaceAll($editor.config);\n"; } else { echo "\n$editor.generate();\n"; } } else { if (empty($name)) { echo "\nvar HTML_name = '';"; } else { echo "\nvar HTML_name = \"$name;\""; } echo "\nvar HTML_editor = $editor;"; } echo '//]]>'."\n"; echo '</script>'."\n"; } function print_editor_config($editorhidebuttons='', $return=false) { global $CFG; $str = "config.pageStyle = \"body {"; if (!(empty($CFG->editorbackgroundcolor))) { $str .= " background-color: $CFG->editorbackgroundcolor;"; } if (!(empty($CFG->editorfontfamily))) { $str .= " font-family: $CFG->editorfontfamily;"; } if (!(empty($CFG->editorfontsize))) { $str .= " font-size: $CFG->editorfontsize;"; } $str .= " }\";\n"; $str .= "config.killWordOnPaste = "; $str .= (empty($CFG->editorkillword)) ? "false":"true"; $str .= ';'."\n"; $str .= 'config.fontname = {'."\n"; $fontlist = isset($CFG->editorfontlist) ? explode(';', $CFG->editorfontlist) : array(); $i = 1; // Counter is used to get rid of the last comma. foreach ($fontlist as $fontline) { if (!empty($fontline)) { if ($i > 1) { $str .= ','."\n"; } list($fontkey, $fontvalue) = split(':', $fontline); $str .= '"'. $fontkey ."\":\t'". $fontvalue ."'"; $i++; } } $str .= '};'; if (!empty($editorhidebuttons)) { $str .= "\nconfig.hideSomeButtons(\" ". $editorhidebuttons ." \");\n"; } else if (!empty($CFG->editorhidebuttons)) { $str .= "\nconfig.hideSomeButtons(\" ". $CFG->editorhidebuttons ." \");\n"; } if (!empty($CFG->editorspelling) && !empty($CFG->aspellpath)) { $str .= print_speller_code($CFG->htmleditor, true); } if ($return) { return $str; } echo $str; } /** * Returns a turn edit on/off button for course in a self contained form. * Used to be an icon, but it's now a simple form button * * Note that the caller is responsible for capchecks. * * @uses $CFG * @uses $USER * @param int $courseid The course to update by id as found in 'course' table * @return string */ function update_course_icon($courseid) { global $CFG, $USER; if (!empty($USER->editing)) { $string = get_string('turneditingoff'); $edit = '0'; } else { $string = get_string('turneditingon'); $edit = '1'; } return '<form '.$CFG->frametarget.' method="get" action="'.$CFG->wwwroot.'/course/view.php">'. '<div>'. '<input type="hidden" name="id" value="'.$courseid.'" />'. '<input type="hidden" name="edit" value="'.$edit.'" />'. '<input type="hidden" name="sesskey" value="'.sesskey().'" />'. '<input type="submit" value="'.$string.'" />'. '</div></form>'; } /** * Returns a little popup menu for switching roles * * @uses $CFG * @uses $USER * @param int $courseid The course to update by id as found in 'course' table * @return string */ function switchroles_form($courseid) { global $CFG, $USER; if (!$context = get_context_instance(CONTEXT_COURSE, $courseid)) { return ''; } if (!empty($USER->access['rsw'][$context->path])){ // Just a button to return to normal $options = array(); $options['id'] = $courseid; $options['sesskey'] = sesskey(); $options['switchrole'] = 0; return print_single_button($CFG->wwwroot.'/course/view.php', $options, get_string('switchrolereturn'), 'post', '_self', true); } if (has_capability('moodle/role:switchroles', $context)) { if (!$roles = get_assignable_roles_for_switchrole($context)) { return ''; // Nothing to show! } // unset default user role - it would not work unset($roles[$CFG->guestroleid]); return popup_form($CFG->wwwroot.'/course/view.php?id='.$courseid.'&sesskey='.sesskey().'&switchrole=', $roles, 'switchrole', '', get_string('switchroleto'), 'switchrole', get_string('switchroleto'), true); } return ''; } /** * Returns a turn edit on/off button for course in a self contained form. * Used to be an icon, but it's now a simple form button * * @uses $CFG * @uses $USER * @param int $courseid The course to update by id as found in 'course' table * @return string */ function update_mymoodle_icon() { global $CFG, $USER; if (!empty($USER->editing)) { $string = get_string('updatemymoodleoff'); $edit = '0'; } else { $string = get_string('updatemymoodleon'); $edit = '1'; } return "<form $CFG->frametarget method=\"get\" action=\"$CFG->wwwroot/my/index.php\">". "<div>". "<input type=\"hidden\" name=\"edit\" value=\"$edit\" />". "<input type=\"submit\" value=\"$string\" /></div></form>"; } /** * Returns a turn edit on/off button for tag in a self contained form. * * @uses $CFG * @uses $USER * @return string */ function update_tag_button($tagid) { global $CFG, $USER; if (!empty($USER->editing)) { $string = get_string('turneditingoff'); $edit = '0'; } else { $string = get_string('turneditingon'); $edit = '1'; } return "<form $CFG->frametarget method=\"get\" action=\"$CFG->wwwroot/tag/index.php\">". "<div>". "<input type=\"hidden\" name=\"edit\" value=\"$edit\" />". "<input type=\"hidden\" name=\"id\" value=\"$tagid\" />". "<input type=\"submit\" value=\"$string\" /></div></form>"; } /** * Prints the editing button on a module "view" page * * @uses $CFG * @param type description * @todo Finish documenting this function */ function update_module_button($moduleid, $courseid, $string) { global $CFG, $USER; if (has_capability('moodle/course:manageactivities', get_context_instance(CONTEXT_MODULE, $moduleid))) { $string = get_string('updatethis', '', $string); return "<form $CFG->frametarget method=\"get\" action=\"$CFG->wwwroot/course/mod.php\" onsubmit=\"this.target='{$CFG->framename}'; return true\">".//hack to allow edit on framed resources "<div>". "<input type=\"hidden\" name=\"update\" value=\"$moduleid\" />". "<input type=\"hidden\" name=\"return\" value=\"true\" />". "<input type=\"hidden\" name=\"sesskey\" value=\"".sesskey()."\" />". "<input type=\"submit\" value=\"$string\" /></div></form>"; } else { return ''; } } /** * Prints the editing button on search results listing * For bulk move courses to another category */ function update_categories_search_button($search,$page,$perpage) { global $CFG, $USER; // not sure if this capability is the best here if (has_capability('moodle/category:manage', get_context_instance(CONTEXT_SYSTEM))) { if (!empty($USER->categoryediting)) { $string = get_string("turneditingoff"); $edit = "off"; $perpage = 30; } else { $string = get_string("turneditingon"); $edit = "on"; } return "<form $CFG->frametarget method=\"get\" action=\"$CFG->wwwroot/course/search.php\">". '<div>'. "<input type=\"hidden\" name=\"edit\" value=\"$edit\" />". "<input type=\"hidden\" name=\"sesskey\" value=\"$USER->sesskey\" />". "<input type=\"hidden\" name=\"search\" value=\"".s($search, true)."\" />". "<input type=\"hidden\" name=\"page\" value=\"$page\" />". "<input type=\"hidden\" name=\"perpage\" value=\"$perpage\" />". "<input type=\"submit\" value=\"".s($string)."\" /></div></form>"; } } /** * Given a course and a (current) coursemodule * This function returns a small popup menu with all the * course activity modules in it, as a navigation menu * The data is taken from the serialised array stored in * the course record * * @param course $course A {@link $COURSE} object. * @param course $cm A {@link $COURSE} object. * @param string $targetwindow ? * @return string * @todo Finish documenting this function */ function navmenu($course, $cm=NULL, $targetwindow='self') { global $CFG, $THEME, $USER; if (empty($THEME->navmenuwidth)) { $width = 50; } else { $width = $THEME->navmenuwidth; } if ($cm) { $cm = $cm->id; } if ($course->format == 'weeks') { $strsection = get_string('week'); } else { $strsection = get_string('topic'); } $strjumpto = get_string('jumpto'); $modinfo = get_fast_modinfo($course); $context = get_context_instance(CONTEXT_COURSE, $course->id); $section = -1; $selected = ''; $url = ''; $previousmod = NULL; $backmod = NULL; $nextmod = NULL; $selectmod = NULL; $logslink = NULL; $flag = false; $menu = array(); $menustyle = array(); $sections = get_records('course_sections','course',$course->id,'section','section,visible,summary'); if (!empty($THEME->makenavmenulist)) { /// A hack to produce an XHTML navmenu list for use in themes $THEME->navmenulist = navmenulist($course, $sections, $modinfo, $strsection, $strjumpto, $width, $cm); } foreach ($modinfo->cms as $mod) { if ($mod->modname == 'label') { continue; } if ($mod->sectionnum > $course->numsections) { /// Don't show excess hidden sections break; } if (!$mod->uservisible) { // do not icnlude empty sections at all continue; } if ($mod->sectionnum > 0 and $section != $mod->sectionnum) { $thissection = $sections[$mod->sectionnum]; if ($thissection->visible or !$course->hiddensections or has_capability('moodle/course:viewhiddensections', $context)) { $thissection->summary = strip_tags(format_string($thissection->summary,true)); if ($course->format == 'weeks' or empty($thissection->summary)) { $menu[] = '--'.$strsection ." ". $mod->sectionnum; } else { if (strlen($thissection->summary) < ($width-3)) { $menu[] = '--'.$thissection->summary; } else { $menu[] = '--'.substr($thissection->summary, 0, $width).'...'; } } $section = $mod->sectionnum; } else { // no activities from this hidden section shown continue; } } $url = $mod->modname.'/view.php?id='. $mod->id; if ($flag) { // the current mod is the "next" mod $nextmod = $mod; $flag = false; } $localname = $mod->name; if ($cm == $mod->id) { $selected = $url; $selectmod = $mod; $backmod = $previousmod; $flag = true; // set flag so we know to use next mod for "next" $localname = $strjumpto; $strjumpto = ''; } else { $localname = strip_tags(format_string($localname,true)); $tl=textlib_get_instance(); if ($tl->strlen($localname) > ($width+5)) { $localname = $tl->substr($localname, 0, $width).'...'; } if (!$mod->visible) { $localname = '('.$localname.')'; } } $menu[$url] = $localname; if (empty($THEME->navmenuiconshide)) { $menustyle[$url] = 'style="background-image: url('.$CFG->modpixpath.'/'.$mod->modname.'/icon.gif);"'; // Unfortunately necessary to do this here } $previousmod = $mod; } //Accessibility: added Alt text, replaced > < with 'silent' character and 'accesshide' text. if ($selectmod and has_capability('coursereport/log:view', $context)) { $logstext = get_string('alllogs'); $logslink = '<li>'."\n".'<a title="'.$logstext.'" '. $CFG->frametarget.' onclick="this.target=\''.$CFG->framename.'\';"'.' href="'. $CFG->wwwroot.'/course/report/log/index.php?chooselog=1&user=0&date=0&id='. $course->id.'&modid='.$selectmod->id.'">'. '<img class="icon log" src="'.$CFG->pixpath.'/i/log.gif" alt="'.$logstext.'" /></a>'."\n".'</li>'; } if ($backmod) { $backtext= get_string('activityprev', 'access'); $backmod = '<li><form action="'.$CFG->wwwroot.'/mod/'.$backmod->modname.'/view.php" '.$CFG->frametarget.' '. 'onclick="this.target=\''.$CFG->framename.'\';"'.'><fieldset class="invisiblefieldset">'. '<input type="hidden" name="id" value="'.$backmod->id.'" />'. '<button type="submit" title="'.$backtext.'">'.link_arrow_left($backtext, $url='', $accesshide=true). '</button></fieldset></form></li>'; } if ($nextmod) { $nexttext= get_string('activitynext', 'access'); $nextmod = '<li><form action="'.$CFG->wwwroot.'/mod/'.$nextmod->modname.'/view.php" '.$CFG->frametarget.' '. 'onclick="this.target=\''.$CFG->framename.'\';"'.'><fieldset class="invisiblefieldset">'. '<input type="hidden" name="id" value="'.$nextmod->id.'" />'. '<button type="submit" title="'.$nexttext.'">'.link_arrow_right($nexttext, $url='', $accesshide=true). '</button></fieldset></form></li>'; } return '<div class="navigation">'."\n".'<ul>'.$logslink . $backmod . '<li>'.popup_form($CFG->wwwroot .'/mod/', $menu, 'navmenupopup', $selected, $strjumpto, '', '', true, $targetwindow, '', $menustyle).'</li>'. $nextmod . '</ul>'."\n".'</div>'; } /** * Given a course * This function returns a small popup menu with all the * course activity modules in it, as a navigation menu * outputs a simple list structure in XHTML * The data is taken from the serialised array stored in * the course record * * @param course $course A {@link $COURSE} object. * @return string * @todo Finish documenting this function */ function navmenulist($course, $sections, $modinfo, $strsection, $strjumpto, $width=50, $cmid=0) { global $CFG; $section = -1; $url = ''; $menu = array(); $doneheading = false; $coursecontext = get_context_instance(CONTEXT_COURSE, $course->id); $menu[] = '<ul class="navmenulist"><li class="jumpto section"><span>'.$strjumpto.'</span><ul>'; foreach ($modinfo->cms as $mod) { if ($mod->modname == 'label') { continue; } if ($mod->sectionnum > $course->numsections) { /// Don't show excess hidden sections break; } if (!$mod->uservisible) { // do not icnlude empty sections at all continue; } if ($mod->sectionnum >= 0 and $section != $mod->sectionnum) { $thissection = $sections[$mod->sectionnum]; if ($thissection->visible or !$course->hiddensections or has_capability('moodle/course:viewhiddensections', $coursecontext)) { $thissection->summary = strip_tags(format_string($thissection->summary,true)); if (!$doneheading) { $menu[] = '</ul></li>'; } if ($course->format == 'weeks' or empty($thissection->summary)) { $item = $strsection ." ". $mod->sectionnum; } else { if (strlen($thissection->summary) < ($width-3)) { $item = $thissection->summary; } else { $item = substr($thissection->summary, 0, $width).'...'; } } $menu[] = '<li class="section"><span>'.$item.'</span>'; $menu[] = '<ul>'; $doneheading = true; $section = $mod->sectionnum; } else { // no activities from this hidden section shown continue; } } $url = $mod->modname .'/view.php?id='. $mod->id; $mod->name = strip_tags(format_string(urldecode($mod->name),true)); if (strlen($mod->name) > ($width+5)) { $mod->name = substr($mod->name, 0, $width).'...'; } if (!$mod->visible) { $mod->name = '('.$mod->name.')'; } $class = 'activity '.$mod->modname; $class .= ($cmid == $mod->id) ? ' selected' : ''; $menu[] = '<li class="'.$class.'">'. '<img src="'.$CFG->modpixpath.'/'.$mod->modname.'/icon.gif" alt="" />'. '<a href="'.$CFG->wwwroot.'/mod/'.$url.'">'.$mod->name.'</a></li>'; } if ($doneheading) { $menu[] = '</ul></li>'; } $menu[] = '</ul></li></ul>'; return implode("\n", $menu); } /** * Prints form items with the names $day, $month and $year * * @param string $day fieldname * @param string $month fieldname * @param string $year fieldname * @param int $currenttime A default timestamp in GMT * @param boolean $return */ function print_date_selector($day, $month, $year, $currenttime=0, $return=false) { if (!$currenttime) { $currenttime = time(); } $currentdate = usergetdate($currenttime); for ($i=1; $i<=31; $i++) { $days[$i] = $i; } for ($i=1; $i<=12; $i++) { $months[$i] = userdate(gmmktime(12,0,0,$i,15,2000), "%B"); } for ($i=1970; $i<=2020; $i++) { $years[$i] = $i; } // Build or print result $result=''; // Note: There should probably be a fieldset around these fields as they are // clearly grouped. However this causes problems with display. See Mozilla // bug 474415 $result.='<label class="accesshide" for="menu'.$day.'">'.get_string('day','form').'</label>'; $result.=choose_from_menu($days, $day, $currentdate['mday'], '', '', '0', true); $result.='<label class="accesshide" for="menu'.$month.'">'.get_string('month','form').'</label>'; $result.=choose_from_menu($months, $month, $currentdate['mon'], '', '', '0', true); $result.='<label class="accesshide" for="menu'.$year.'">'.get_string('year','form').'</label>'; $result.=choose_from_menu($years, $year, $currentdate['year'], '', '', '0', true); if ($return) { return $result; } else { echo $result; } } /** *Prints form items with the names $hour and $minute * * @param string $hour fieldname * @param string ? $minute fieldname * @param $currenttime A default timestamp in GMT * @param int $step minute spacing * @param boolean $return */ function print_time_selector($hour, $minute, $currenttime=0, $step=5, $return=false) { if (!$currenttime) { $currenttime = time(); } $currentdate = usergetdate($currenttime); if ($step != 1) { $currentdate['minutes'] = ceil($currentdate['minutes']/$step)*$step; } for ($i=0; $i<=23; $i++) { $hours[$i] = sprintf("%02d",$i); } for ($i=0; $i<=59; $i+=$step) { $minutes[$i] = sprintf("%02d",$i); } // Build or print result $result=''; // Note: There should probably be a fieldset around these fields as they are // clearly grouped. However this causes problems with display. See Mozilla // bug 474415 $result.='<label class="accesshide" for="menu'.$hour.'">'.get_string('hour','form').'</label>'; $result.=choose_from_menu($hours, $hour, $currentdate['hours'], '','','0',true); $result.='<label class="accesshide" for="menu'.$minute.'">'.get_string('minute','form').'</label>'; $result.=choose_from_menu($minutes, $minute, $currentdate['minutes'], '','','0',true); if ($return) { return $result; } else { echo $result; } } /** * Prints time limit value selector * * @uses $CFG * @param int $timelimit default * @param string $unit * @param string $name * @param boolean $return */ function print_timer_selector($timelimit = 0, $unit = '', $name = 'timelimit', $return=false) { global $CFG; if ($unit) { $unit = ' '.$unit; } // Max timelimit is sessiontimeout - 10 minutes. $maxvalue = ($CFG->sessiontimeout / 60) - 10; for ($i=1; $i<=$maxvalue; $i++) { $minutes[$i] = $i.$unit; } return choose_from_menu($minutes, $name, $timelimit, get_string('none'), '','','0',$return); } /** * Prints a grade menu (as part of an existing form) with help * Showing all possible numerical grades and scales * * @uses $CFG * @param int $courseid ? * @param string $name ? * @param string $current ? * @param boolean $includenograde ? * @todo Finish documenting this function */ function print_grade_menu($courseid, $name, $current, $includenograde=true, $return=false) { global $CFG; $output = ''; $strscale = get_string('scale'); $strscales = get_string('scales'); $scales = get_scales_menu($courseid); foreach ($scales as $i => $scalename) { $grades[-$i] = $strscale .': '. $scalename; } if ($includenograde) { $grades[0] = get_string('nograde'); } for ($i=100; $i>=1; $i--) { $grades[$i] = $i; } $output .= choose_from_menu($grades, $name, $current, '', '', 0, true); $linkobject = '<span class="helplink"><img class="iconhelp" alt="'.$strscales.'" src="'.$CFG->pixpath .'/help.gif" /></span>'; $output .= link_to_popup_window ('/course/scales.php?id='. $courseid .'&list=true', 'ratingscales', $linkobject, 400, 500, $strscales, 'none', true); if ($return) { return $output; } else { echo $output; } } /** * Prints a scale menu (as part of an existing form) including help button * Just like {@link print_grade_menu()} but without the numeric grades * * @param int $courseid ? * @param string $name ? * @param string $current ? * @todo Finish documenting this function */ function print_scale_menu($courseid, $name, $current, $return=false) { global $CFG; $output = ''; $strscales = get_string('scales'); $output .= choose_from_menu(get_scales_menu($courseid), $name, $current, '', '', 0, true); $linkobject = '<span class="helplink"><img class="iconhelp" alt="'.$strscales.'" src="'.$CFG->pixpath .'/help.gif" /></span>'; $output .= link_to_popup_window ('/course/scales.php?id='. $courseid .'&list=true', 'ratingscales', $linkobject, 400, 500, $strscales, 'none', true); if ($return) { return $output; } else { echo $output; } } /** * Prints a help button about a scale * * @uses $CFG * @param id $courseid ? * @param object $scale ? * @todo Finish documenting this function */ function print_scale_menu_helpbutton($courseid, $scale, $return=false) { global $CFG; $output = ''; $strscales = get_string('scales'); $linkobject = '<span class="helplink"><img class="iconhelp" alt="'.$scale->name.'" src="'.$CFG->pixpath .'/help.gif" /></span>'; $output .= link_to_popup_window ('/course/scales.php?id='. $courseid .'&list=true&scaleid='. $scale->id, 'ratingscale', $linkobject, 400, 500, $scale->name, 'none', true); if ($return) { return $output; } else { echo $output; } } /** * Print an error page displaying an error message. New method - use this for new code. * * @uses $SESSION * @uses $CFG * @param string $errorcode The name of the string from error.php (or other specified file) to print * @param string $link The url where the user will be prompted to continue. If no url is provided the user will be directed to the site index page. * @param object $a Extra words and phrases that might be required in the error string * @param array $extralocations An array of strings with other locations to look for string files * @return does not return, terminates script */ function print_error($errorcode, $module='error', $link='', $a=NULL, $extralocations=NULL) { global $CFG, $SESSION, $THEME; if (empty($module) || $module === 'moodle' || $module === 'core') { $module = 'error'; } $message = get_string($errorcode, $module, $a, $extralocations); if ($module === 'error' and strpos($message, '[[') === 0) { //search in moodle file if error specified - needed for backwards compatibility $message = get_string($errorcode, 'moodle', $a, $extralocations); } if (empty($link) and !defined('ADMIN_EXT_HEADER_PRINTED')) { if ( !empty($SESSION->fromurl) ) { $link = $SESSION->fromurl; unset($SESSION->fromurl); } else { $link = $CFG->wwwroot .'/'; } } if (!empty($CFG->errordocroot)) { $errordocroot = $CFG->errordocroot; } else if (!empty($CFG->docroot)) { $errordocroot = $CFG->docroot; } else { $errordocroot = 'http://docs.moodle.org'; } if (defined('FULLME') && FULLME == 'cron') { // Errors in cron should be mtrace'd. mtrace($message); die; } if ($module === 'error') { $modulelink = 'moodle'; } else { $modulelink = $module; } $message = clean_text('<p class="errormessage">'.$message.'</p>'. '<p class="errorcode">'. '<a href="'.$errordocroot.'/en/error/'.$modulelink.'/'.$errorcode.'">'. get_string('moreinformation').'</a></p>'); if (! defined('HEADER_PRINTED')) { //header not yet printed @header('HTTP/1.0 404 Not Found'); print_header(get_string('error')); } else { print_container_end_all(false, $THEME->open_header_containers); } echo '<br />'; print_simple_box($message, '', '', '', '', 'errorbox'); debugging('Stack trace:', DEBUG_DEVELOPER); // in case we are logging upgrade in admin/index.php stop it if (function_exists('upgrade_log_finish')) { upgrade_log_finish(); } if (!empty($link)) { print_continue($link); } print_footer(); for ($i=0;$i<512;$i++) { // Padding to help IE work with 404 echo ' '; } die; } /** * Print an error to STDOUT and exit with a non-zero code. For commandline scripts. * Default errorcode is 1. * * Very useful for perl-like error-handling: * * do_somethting() or mdie("Something went wrong"); * * @param string $msg Error message * @param integer $errorcode Error code to emit */ function mdie($msg='', $errorcode=1) { trigger_error($msg); exit($errorcode); } /** * Returns a string of html with an image of a help icon linked to a help page on a number of help topics. * Should be used only with htmleditor or textarea. * @param mixed $helptopics variable amount of params accepted. Each param may be a string or an array of arguments for * helpbutton. * @return string */ function editorhelpbutton(){ global $CFG, $SESSION; $items = func_get_args(); $i = 1; $urlparams = array(); $titles = array(); foreach ($items as $item){ if (is_array($item)){ $urlparams[] = "keyword$i=".urlencode($item[0]); $urlparams[] = "title$i=".urlencode($item[1]); if (isset($item[2])){ $urlparams[] = "module$i=".urlencode($item[2]); } $titles[] = trim($item[1], ". \t"); }elseif (is_string($item)){ $urlparams[] = "button$i=".urlencode($item); switch ($item){ case 'reading' : $titles[] = get_string("helpreading"); break; case 'writing' : $titles[] = get_string("helpwriting"); break; case 'questions' : $titles[] = get_string("helpquestions"); break; case 'emoticons' : $titles[] = get_string("helpemoticons"); break; case 'richtext' : $titles[] = get_string('helprichtext'); break; case 'text' : $titles[] = get_string('helptext'); break; default : error('Unknown help topic '.$item); } } $i++; } if (count($titles)>1){ //join last two items with an 'and' $a = new object(); $a->one = $titles[count($titles) - 2]; $a->two = $titles[count($titles) - 1]; $titles[count($titles) - 2] = get_string('and', '', $a); unset($titles[count($titles) - 1]); } $alttag = join (', ', $titles); $paramstring = join('&', $urlparams); $linkobject = '<img alt="'.$alttag.'" class="iconhelp" src="'.$CFG->pixpath .'/help.gif" />'; return link_to_popup_window(s('/lib/form/editorhelp.php?'.$paramstring), 'popup', $linkobject, 400, 500, $alttag, 'none', true); } /** * Print a help button. * * @uses $CFG * @param string $page The keyword that defines a help page * @param string $title The title of links, rollover tips, alt tags etc * 'Help with' (or the language equivalent) will be prefixed and '...' will be stripped. * @param string $module Which module is the page defined in * @param mixed $image Use a help image for the link? (true/false/"both") * @param boolean $linktext If true, display the title next to the help icon. * @param string $text If defined then this text is used in the page, and * the $page variable is ignored. * @param boolean $return If true then the output is returned as a string, if false it is printed to the current page. * @param string $imagetext The full text for the helpbutton icon. If empty use default help.gif * @return string * @todo Finish documenting this function */ function helpbutton ($page, $title, $module='moodle', $image=true, $linktext=false, $text='', $return=false, $imagetext='') { global $CFG, $COURSE; //warning if ever $text parameter is used //$text option won't work properly because the text needs to be always cleaned and, // when cleaned... html tags always break, so it's unusable. if ( isset($text) && $text!='') { debugging('Warning: it\'s not recommended to use $text parameter in helpbutton ($page=' . $page . ', $module=' . $module . ') function', DEBUG_DEVELOPER); } // fix for MDL-7734 if (!empty($COURSE->lang)) { $forcelang = $COURSE->lang; } else { $forcelang = ''; } if ($module == '') { $module = 'moodle'; } if ($title == '' && $linktext == '') { debugging('Error in call to helpbutton function: at least one of $title and $linktext is required'); } // Warn users about new window for Accessibility $tooltip = get_string('helpprefix2', '', trim($title, ". \t")) .' ('.get_string('newwindow').')'; $linkobject = ''; if ($image) { if ($linktext) { // MDL-7469 If text link is displayed with help icon, change to alt to "help with this". $linkobject .= $title.' '; $tooltip = get_string('helpwiththis'); } if ($imagetext) { $linkobject .= $imagetext; } else { $linkobject .= '<img class="iconhelp" alt="'.s(strip_tags($tooltip)).'" src="'. $CFG->pixpath .'/help.gif" />'; } } else { $linkobject .= $tooltip; } // fix for MDL-7734 if ($text) { $url = '/help.php?module='. $module .'&text='. s(urlencode($text).'&forcelang='.$forcelang); } else { $url = '/help.php?module='. $module .'&file='. $page .'.html&forcelang='.$forcelang; } $link = '<span class="helplink">'. link_to_popup_window ($url, 'popup', $linkobject, 400, 500, $tooltip, 'none', true). '</span>'; if ($return) { return $link; } else { echo $link; } } /** * Print a help button. * * Prints a special help button that is a link to the "live" emoticon popup * @uses $CFG * @uses $SESSION * @param string $form ? * @param string $field ? * @todo Finish documenting this function */ function emoticonhelpbutton($form, $field, $return = false) { global $CFG, $SESSION; $SESSION->inserttextform = $form; $SESSION->inserttextfield = $field; $imagetext = '<img src="' . $CFG->pixpath . '/s/smiley.gif" alt="" class="emoticon" style="margin-left:3px; padding-right:1px;width:15px;height:15px;" />'; $help = helpbutton('emoticons', get_string('helpemoticons'), 'moodle', true, true, '', true, $imagetext); if (!$return){ echo $help; } else { return $help; } } /** * Print a help button. * * Prints a special help button for html editors (htmlarea in this case) * @uses $CFG */ function editorshortcutshelpbutton() { global $CFG; $imagetext = '<img src="' . $CFG->httpswwwroot . '/lib/editor/htmlarea/images/kbhelp.gif" alt="'. get_string('editorshortcutkeys').'" class="iconkbhelp" />'; return helpbutton('editorshortcuts', get_string('editorshortcutkeys'), 'moodle', true, false, '', true, $imagetext); } /** * Print a message and exit. * * @uses $CFG * @param string $message ? * @param string $link ? * @todo Finish documenting this function */ function notice ($message, $link='', $course=NULL) { global $CFG, $SITE, $THEME, $COURSE; $message = clean_text($message); // In case nasties are in here if (defined('FULLME') && FULLME == 'cron') { // notices in cron should be mtrace'd. mtrace($message); die; } if (! defined('HEADER_PRINTED')) { //header not yet printed print_header(get_string('notice')); } else { print_container_end_all(false, $THEME->open_header_containers); } print_box($message, 'generalbox', 'notice'); print_continue($link); if (empty($course)) { print_footer($COURSE); } else { print_footer($course); } exit; } /** * Print a message along with "Yes" and "No" links for the user to continue. * * @param string $message The text to display * @param string $linkyes The link to take the user to if they choose "Yes" * @param string $linkno The link to take the user to if they choose "No" * TODO Document remaining arguments */ function notice_yesno ($message, $linkyes, $linkno, $optionsyes=NULL, $optionsno=NULL, $methodyes='post', $methodno='post') { global $CFG; $message = clean_text($message); $linkyes = clean_text($linkyes); $linkno = clean_text($linkno); print_box_start('generalbox', 'notice'); echo '<p>'. $message .'</p>'; echo '<div class="buttons">'; print_single_button($linkyes, $optionsyes, get_string('yes'), $methodyes, $CFG->framename); print_single_button($linkno, $optionsno, get_string('no'), $methodno, $CFG->framename); echo '</div>'; print_box_end(); } /** * Provide an definition of error_get_last for PHP before 5.2.0. This simply * returns NULL, since there is not way to get the right answer. */ if (!function_exists('error_get_last')) { // the eval is needed to prevent PHP 5.2+ from getting a parse error! eval(' function error_get_last() { return NULL; } '); } /** * Redirects the user to another page, after printing a notice * * @param string $url The url to take the user to * @param string $message The text message to display to the user about the redirect, if any * @param string $delay How long before refreshing to the new page at $url? * @todo '&' needs to be encoded into '&' for XHTML compliance, * however, this is not true for javascript. Therefore we * first decode all entities in $url (since we cannot rely on) * the correct input) and then encode for where it's needed * echo "<script type='text/javascript'>alert('Redirect $url');</script>"; */ function redirect($url, $message='', $delay=-1) { global $CFG, $THEME; if (!empty($CFG->usesid) && !isset($_COOKIE[session_name()])) { $url = sid_process_url($url); } $message = clean_text($message); $encodedurl = preg_replace("/\&(?![a-zA-Z0-9#]{1,8};)/", "&", $url); $encodedurl = preg_replace('/^.*href="([^"]*)".*$/', "\\1", clean_text('<a href="'.$encodedurl.'" />')); $url = str_replace('&', '&', $encodedurl); /// At developer debug level. Don't redirect if errors have been printed on screen. /// Currenly only works in PHP 5.2+; we do not want strict PHP5 errors $lasterror = error_get_last(); $error = defined('DEBUGGING_PRINTED') or (!empty($lasterror) && ($lasterror['type'] & DEBUG_DEVELOPER)); $errorprinted = debugging('', DEBUG_ALL) && $CFG->debugdisplay && $error; if ($errorprinted) { $message = "<strong>Error output, so disabling automatic redirect.</strong></p><p>" . $message; } $performanceinfo = ''; if (defined('MDL_PERF') || (!empty($CFG->perfdebug) and $CFG->perfdebug > 7)) { if (defined('MDL_PERFTOLOG') && !function_exists('register_shutdown_function')) { $perf = get_performance_info(); error_log("PERF: " . $perf['txt']); } } /// when no message and header printed yet, try to redirect if (empty($message) and !defined('HEADER_PRINTED')) { // Technically, HTTP/1.1 requires Location: header to contain // the absolute path. (In practice browsers accept relative // paths - but still, might as well do it properly.) // This code turns relative into absolute. if (!preg_match('|^[a-z]+:|', $url)) { // Get host name http://www.wherever.com $hostpart = preg_replace('|^(.*?[^:/])/.*$|', '$1', $CFG->wwwroot); if (preg_match('|^/|', $url)) { // URLs beginning with / are relative to web server root so we just add them in $url = $hostpart.$url; } else { // URLs not beginning with / are relative to path of current script, so add that on. $url = $hostpart.preg_replace('|\?.*$|','',me()).'/../'.$url; } // Replace all ..s while (true) { $newurl = preg_replace('|/(?!\.\.)[^/]*/\.\./|', '/', $url); if ($newurl == $url) { break; } $url = $newurl; } } $delay = 0; //try header redirection first @header($_SERVER['SERVER_PROTOCOL'] . ' 303 See Other'); //302 might not work for POST requests, 303 is ignored by obsolete clients @header('Location: '.$url); //another way for older browsers and already sent headers (eg trailing whitespace in config.php) echo '<meta http-equiv="refresh" content="'. $delay .'; url='. $encodedurl .'" />'; echo '<script type="text/javascript">'. "\n" .'//<![CDATA['. "\n". "location.replace('".addslashes_js($url)."');". "\n". '//]]>'. "\n". '</script>'; // To cope with Mozilla bug die; } if ($delay == -1) { $delay = 3; // if no delay specified wait 3 seconds } if (! defined('HEADER_PRINTED')) { // this type of redirect might not be working in some browsers - such as lynx :-( print_header('', '', '', '', $errorprinted ? '' : ('<meta http-equiv="refresh" content="'. $delay .'; url='. $encodedurl .'" />')); $delay += 3; // double redirect prevention, it was sometimes breaking upgrades before 1.7 } else { print_container_end_all(false, $THEME->open_header_containers); } echo '<div id="redirect">'; echo '<div id="message">' . $message . '</div>'; echo '<div id="continue">( <a href="'. $encodedurl .'">'. get_string('continue') .'</a> )</div>'; echo '</div>'; if (!$errorprinted) { ?> <script type="text/javascript"> //<![CDATA[ function redirect() { document.location.replace('<?php echo addslashes_js($url) ?>'); } setTimeout("redirect()", <?php echo ($delay * 1000) ?>); //]]> </script> <?php } $CFG->docroot = false; // to prevent the link to moodle docs from being displayed on redirect page. print_footer('none'); die; } /** * Print a bold message in an optional color. * * @param string $message The message to print out * @param string $style Optional style to display message text in * @param string $align Alignment option * @param bool $return whether to return an output string or echo now */ function notify($message, $style='notifyproblem', $align='center', $return=false) { if ($style == 'green') { $style = 'notifysuccess'; // backward compatible with old color system } $message = clean_text($message); $output = '<div class="'.$style.'" style="text-align:'. $align .'">'. $message .'</div>'."\n"; if ($return) { return $output; } echo $output; } /** * Given an email address, this function will return an obfuscated version of it * * @param string $email The email address to obfuscate * @return string */ function obfuscate_email($email) { $i = 0; $length = strlen($email); $obfuscated = ''; while ($i < $length) { if (rand(0,2) && $email{$i}!='@') { //MDL-20619 some browsers have problems unobfuscating @ $obfuscated.='%'.dechex(ord($email{$i})); } else { $obfuscated.=$email{$i}; } $i++; } return $obfuscated; } /** * This function takes some text and replaces about half of the characters * with HTML entity equivalents. Return string is obviously longer. * * @param string $plaintext The text to be obfuscated * @return string */ function obfuscate_text($plaintext) { $i=0; $length = strlen($plaintext); $obfuscated=''; $prev_obfuscated = false; while ($i < $length) { $c = ord($plaintext{$i}); $numerical = ($c >= ord('0')) && ($c <= ord('9')); if ($prev_obfuscated and $numerical ) { $obfuscated.='&#'.ord($plaintext{$i}).';'; } else if (rand(0,2)) { $obfuscated.='&#'.ord($plaintext{$i}).';'; $prev_obfuscated = true; } else { $obfuscated.=$plaintext{$i}; $prev_obfuscated = false; } $i++; } return $obfuscated; } /** * This function uses the {@link obfuscate_email()} and {@link obfuscate_text()} * to generate a fully obfuscated email link, ready to use. * * @param string $email The email address to display * @param string $label The text to dispalyed as hyperlink to $email * @param boolean $dimmed If true then use css class 'dimmed' for hyperlink * @return string */ function obfuscate_mailto($email, $label='', $dimmed=false) { if (empty($label)) { $label = $email; } if ($dimmed) { $title = get_string('emaildisable'); $dimmed = ' class="dimmed"'; } else { $title = ''; $dimmed = ''; } return sprintf("<a href=\"%s:%s\" $dimmed title=\"$title\">%s</a>", obfuscate_text('mailto'), obfuscate_email($email), obfuscate_text($label)); } /** * Prints a single paging bar to provide access to other pages (usually in a search) * * @param int $totalcount Thetotal number of entries available to be paged through * @param int $page The page you are currently viewing * @param int $perpage The number of entries that should be shown per page * @param mixed $baseurl If this is a string then it is the url which will be appended with $pagevar, an equals sign and the page number. * If this is a moodle_url object then the pagevar param will be replaced by the page no, for each page. * @param string $pagevar This is the variable name that you use for the page number in your code (ie. 'tablepage', 'blogpage', etc) * @param bool $nocurr do not display the current page as a link * @param bool $return whether to return an output string or echo now * @return bool or string */ function print_paging_bar($totalcount, $page, $perpage, $baseurl, $pagevar='page',$nocurr=false, $return=false) { $maxdisplay = 18; $output = ''; if ($totalcount > $perpage) { $output .= '<div class="paging">'; $output .= get_string('page') .':'; if ($page > 0) { $pagenum = $page - 1; if (!is_a($baseurl, 'moodle_url')){ $output .= ' (<a class="previous" href="'. $baseurl . $pagevar .'='. $pagenum .'">'. get_string('previous') .'</a>) '; } else { $output .= ' (<a class="previous" href="'. $baseurl->out(false, array($pagevar => $pagenum)).'">'. get_string('previous') .'</a>) '; } } if ($perpage > 0) { $lastpage = ceil($totalcount / $perpage); } else { $lastpage = 1; } if ($page > 15) { $startpage = $page - 10; if (!is_a($baseurl, 'moodle_url')){ $output .= ' <a href="'. $baseurl . $pagevar .'=0">1</a> ...'; } else { $output .= ' <a href="'. $baseurl->out(false, array($pagevar => 0)).'">1</a> ...'; } } else { $startpage = 0; } $currpage = $startpage; $displaycount = $displaypage = 0; while ($displaycount < $maxdisplay and $currpage < $lastpage) { $displaypage = $currpage+1; if ($page == $currpage && empty($nocurr)) { $output .= ' '. $displaypage; } else { if (!is_a($baseurl, 'moodle_url')){ $output .= ' <a href="'. $baseurl . $pagevar .'='. $currpage .'">'. $displaypage .'</a>'; } else { $output .= ' <a href="'. $baseurl->out(false, array($pagevar => $currpage)).'">'. $displaypage .'</a>'; } } $displaycount++; $currpage++; } if ($currpage < $lastpage) { $lastpageactual = $lastpage - 1; if (!is_a($baseurl, 'moodle_url')){ $output .= ' ...<a href="'. $baseurl . $pagevar .'='. $lastpageactual .'">'. $lastpage .'</a> '; } else { $output .= ' ...<a href="'. $baseurl->out(false, array($pagevar => $lastpageactual)).'">'. $lastpage .'</a> '; } } $pagenum = $page + 1; if ($pagenum != $displaypage) { if (!is_a($baseurl, 'moodle_url')){ $output .= ' (<a class="next" href="'. $baseurl . $pagevar .'='. $pagenum .'">'. get_string('next') .'</a>)'; } else { $output .= ' (<a class="next" href="'. $baseurl->out(false, array($pagevar => $pagenum)) .'">'. get_string('next') .'</a>)'; } } $output .= '</div>'; } if ($return) { return $output; } echo $output; return true; } /** * This function is used to rebuild the <nolink> tag because some formats (PLAIN and WIKI) * will transform it to html entities * * @param string $text Text to search for nolink tag in * @return string */ function rebuildnolinktag($text) { $text = preg_replace('/<(\/*nolink)>/i','<$1>',$text); return $text; } /** * Prints a nice side block with an optional header. The content can either * be a block of HTML or a list of text with optional icons. * * @param string $heading Block $title embedded in HTML tags, for example <h2>. * @param string $content ? * @param array $list ? * @param array $icons ? * @param string $footer ? * @param array $attributes ? * @param string $title Plain text title, as embedded in the $heading. * @todo Finish documenting this function. Show example of various attributes, etc. */ function print_side_block($heading='', $content='', $list=NULL, $icons=NULL, $footer='', $attributes = array(), $title='') { //Accessibility: skip block link, with title-text (or $block_id) to differentiate links. static $block_id = 0; $block_id++; $skip_text = get_string('skipa', 'access', strip_tags($title)); $skip_link = '<a href="#sb-'.$block_id.'" class="skip-block">'.$skip_text.'</a>'; $skip_dest = '<span id="sb-'.$block_id.'" class="skip-block-to"></span>'; $strip_title = strip_tags($title); if (! empty($strip_title)) { echo $skip_link; } //ELSE: a single link on a page "Skip block 4" is too confusing - ignore. print_side_block_start($heading, $attributes); if ($content) { echo $content; if ($footer) { echo '<div class="footer">'. $footer .'</div>'; } } else { if ($list) { $row = 0; //Accessibility: replaced unnecessary table with list, see themes/standard/styles_layout.css echo "\n<ul class='list'>\n"; foreach ($list as $key => $string) { echo '<li class="r'. $row .'">'; if ($icons) { echo '<div class="icon column c0">'. $icons[$key] .'</div>'; } echo '<div class="column c1">' . $string . '</div>'; echo "</li>\n"; $row = $row ? 0:1; } echo "</ul>\n"; } if ($footer) { echo '<div class="footer">'. $footer .'</div>'; } } print_side_block_end($attributes, $title); echo $skip_dest; } /** * Starts a nice side block with an optional header. * * @param string $heading ? * @param array $attributes ? * @todo Finish documenting this function */ function print_side_block_start($heading='', $attributes = array()) { global $CFG, $THEME; // If there are no special attributes, give a default CSS class if (empty($attributes) || !is_array($attributes)) { $attributes = array('class' => 'sideblock'); } else if(!isset($attributes['class'])) { $attributes['class'] = 'sideblock'; } else if(!strpos($attributes['class'], 'sideblock')) { $attributes['class'] .= ' sideblock'; } // OK, the class is surely there and in addition to anything // else, it's tagged as a sideblock /* // IE misery: if I do it this way, blocks which start hidden cannot be "unhidden" // If there is a cookie to hide this thing, start it hidden if (!empty($attributes['id']) && isset($_COOKIE['hide:'.$attributes['id']])) { $attributes['class'] = 'hidden '.$attributes['class']; } */ $attrtext = ''; foreach ($attributes as $attr => $val) { $attrtext .= ' '.$attr.'="'.$val.'"'; } echo '<div '.$attrtext.'>'; if (!empty($THEME->customcorners)) { echo '<div class="wrap">'."\n"; } if ($heading) { //Accessibility: H2 more appropriate in moodleblock.class.php: _title_html. echo '<div class="header">'; if (!empty($THEME->customcorners)) { echo '<div class="bt"><div> </div></div>'; echo '<div class="i1"><div class="i2">'; echo '<div class="i3">'; } echo $heading; if (!empty($THEME->customcorners)) { echo '</div></div></div>'; } echo '</div>'; } else { if (!empty($THEME->customcorners)) { echo '<div class="bt"><div> </div></div>'; } } if (!empty($THEME->customcorners)) { echo '<div class="i1"><div class="i2">'; echo '<div class="i3">'; } echo '<div class="content">'; } /** * Print table ending tags for a side block box. */ function print_side_block_end($attributes = array(), $title='') { global $CFG, $THEME; echo '</div>'; if (!empty($THEME->customcorners)) { echo '</div></div></div><div class="bb"><div> </div></div></div>'; } echo '</div>'; $strshow = addslashes_js(get_string('showblocka', 'access', strip_tags($title))); $strhide = addslashes_js(get_string('hideblocka', 'access', strip_tags($title))); // IE workaround: if I do it THIS way, it works! WTF? if (!empty($CFG->allowuserblockhiding) && isset($attributes['id'])) { echo '<script type="text/javascript">'."\n//<![CDATA[\n".'elementCookieHide("'.$attributes['id']. '","'.$strshow.'","'.$strhide."\");\n//]]>\n".'</script>'; } } /** * Prints out code needed for spellchecking. * Original idea by Ludo (Marc Alier). * * Opening CDATA and <script> are output by weblib::use_html_editor() * @uses $CFG * @param boolean $usehtmleditor Normally set by $CFG->htmleditor, can be overriden here * @param boolean $return If false, echos the code instead of returning it * @todo Find out if lib/editor/htmlarea/htmlarea.class.php::print_speller_code() is still used, and delete if not */ function print_speller_code ($usehtmleditor=false, $return=false) { global $CFG; $str = ''; if(!$usehtmleditor) { $str .= 'function openSpellChecker() {'."\n"; $str .= "\tvar speller = new spellChecker();\n"; $str .= "\tspeller.popUpUrl = \"" . $CFG->httpswwwroot ."/lib/speller/spellchecker.html\";\n"; $str .= "\tspeller.spellCheckScript = \"". $CFG->httpswwwroot ."/lib/speller/server-scripts/spellchecker.php\";\n"; $str .= "\tspeller.spellCheckAll();\n"; $str .= '}'."\n"; } else { $str .= "function spellClickHandler(editor, buttonId) {\n"; $str .= "\teditor._textArea.value = editor.getHTML();\n"; $str .= "\tvar speller = new spellChecker( editor._textArea );\n"; $str .= "\tspeller.popUpUrl = \"" . $CFG->httpswwwroot ."/lib/speller/spellchecker.html\";\n"; $str .= "\tspeller.spellCheckScript = \"". $CFG->httpswwwroot ."/lib/speller/server-scripts/spellchecker.php\";\n"; $str .= "\tspeller._moogle_edit=1;\n"; $str .= "\tspeller._editor=editor;\n"; $str .= "\tspeller.openChecker();\n"; $str .= '}'."\n"; } if ($return) { return $str; } echo $str; } /** * Print button for spellchecking when editor is disabled */ function print_speller_button () { echo '<input type="button" value="Check spelling" onclick="openSpellChecker();" />'."\n"; } function page_id_and_class(&$getid, &$getclass) { // Create class and id for this page global $CFG, $ME; static $class = NULL; static $id = NULL; if (empty($CFG->pagepath)) { $CFG->pagepath = $ME; } if (empty($class) || empty($id)) { $path = str_replace($CFG->httpswwwroot.'/', '', $CFG->pagepath); //Because the page could be HTTPSPAGEREQUIRED $path = str_replace('.php', '', $path); if (substr($path, -1) == '/') { $path .= 'index'; } if (empty($path) || $path == 'index') { $id = 'site-index'; $class = 'course'; } else if (substr($path, 0, 5) == 'admin') { $id = str_replace('/', '-', $path); $class = 'admin'; } else { $id = str_replace('/', '-', $path); $class = explode('-', $id); array_pop($class); $class = implode('-', $class); } } $getid = $id; $getclass = $class; } /** * Prints a maintenance message from /maintenance.html */ function print_maintenance_message () { global $CFG, $SITE; $CFG->pagepath = "index.php"; print_header(strip_tags($SITE->fullname), $SITE->fullname, 'home'); print_box_start(); print_heading(get_string('sitemaintenance', 'admin')); @include($CFG->dataroot.'/'.SITEID.'/maintenance.html'); print_box_end(); print_footer(); } /** * Adjust the list of allowed tags based on $CFG->allowobjectembed and user roles (admin) */ function adjust_allowed_tags() { global $CFG, $ALLOWED_TAGS; if (!empty($CFG->allowobjectembed)) { $ALLOWED_TAGS .= '<embed><object>'; } } /// Some code to print tabs /// A class for tabs class tabobject { var $id; var $link; var $text; var $linkedwhenselected; /// A constructor just because I like constructors function tabobject ($id, $link='', $text='', $title='', $linkedwhenselected=false) { $this->id = $id; $this->link = $link; $this->text = $text; $this->title = $title ? $title : $text; $this->linkedwhenselected = $linkedwhenselected; } } /** * Returns a string containing a nested list, suitable for formatting into tabs with CSS. * * @param array $tabrows An array of rows where each row is an array of tab objects * @param string $selected The id of the selected tab (whatever row it's on) * @param array $inactive An array of ids of inactive tabs that are not selectable. * @param array $activated An array of ids of other tabs that are currently activated **/ function print_tabs($tabrows, $selected=NULL, $inactive=NULL, $activated=NULL, $return=false) { global $CFG; /// $inactive must be an array if (!is_array($inactive)) { $inactive = array(); } /// $activated must be an array if (!is_array($activated)) { $activated = array(); } /// Convert the tab rows into a tree that's easier to process if (!$tree = convert_tabrows_to_tree($tabrows, $selected, $inactive, $activated)) { return false; } /// Print out the current tree of tabs (this function is recursive) $output = convert_tree_to_html($tree); $output = "\n\n".'<div class="tabtree">'.$output.'</div><div class="clearer"> </div>'."\n\n"; /// We're done! if ($return) { return $output; } echo $output; } function convert_tree_to_html($tree, $row=0) { $str = "\n".'<ul class="tabrow'.$row.'">'."\n"; $first = true; $count = count($tree); foreach ($tree as $tab) { $count--; // countdown to zero $liclass = ''; if ($first && ($count == 0)) { // Just one in the row $liclass = 'first last'; $first = false; } else if ($first) { $liclass = 'first'; $first = false; } else if ($count == 0) { $liclass = 'last'; } if ((empty($tab->subtree)) && (!empty($tab->selected))) { $liclass .= (empty($liclass)) ? 'onerow' : ' onerow'; } if ($tab->inactive || $tab->active || $tab->selected) { if ($tab->selected) { $liclass .= (empty($liclass)) ? 'here selected' : ' here selected'; } else if ($tab->active) { $liclass .= (empty($liclass)) ? 'here active' : ' here active'; } } $str .= (!empty($liclass)) ? '<li class="'.$liclass.'">' : '<li>'; if ($tab->inactive || $tab->active || ($tab->selected && !$tab->linkedwhenselected)) { // The a tag is used for styling $str .= '<a class="nolink"><span>'.$tab->text.'</span></a>'; } else { $str .= '<a href="'.$tab->link.'" title="'.$tab->title.'"><span>'.$tab->text.'</span></a>'; } if (!empty($tab->subtree)) { $str .= convert_tree_to_html($tab->subtree, $row+1); } else if ($tab->selected) { $str .= '<div class="tabrow'.($row+1).' empty"> </div>'."\n"; } $str .= ' </li>'."\n"; } $str .= '</ul>'."\n"; return $str; } function convert_tabrows_to_tree($tabrows, $selected, $inactive, $activated) { /// Work backwards through the rows (bottom to top) collecting the tree as we go. $tabrows = array_reverse($tabrows); $subtree = array(); foreach ($tabrows as $row) { $tree = array(); foreach ($row as $tab) { $tab->inactive = in_array((string)$tab->id, $inactive); $tab->active = in_array((string)$tab->id, $activated); $tab->selected = (string)$tab->id == $selected; if ($tab->active || $tab->selected) { if ($subtree) { $tab->subtree = $subtree; } } $tree[] = $tab; } $subtree = $tree; } return $subtree; } /** * Returns a string containing a link to the user documentation for the current * page. Also contains an icon by default. Shown to teachers and admin only. * * @param string $text The text to be displayed for the link * @param string $iconpath The path to the icon to be displayed */ function page_doc_link($text='', $iconpath='') { global $ME, $COURSE, $CFG; if (empty($CFG->docroot) or empty($CFG->rolesactive)) { return ''; } if (empty($COURSE->id)) { $context = get_context_instance(CONTEXT_SYSTEM); } else { $context = get_context_instance(CONTEXT_COURSE, $COURSE->id); } if (!has_capability('moodle/site:doclinks', $context)) { return ''; } if (empty($CFG->pagepath)) { $CFG->pagepath = $ME; } $path = str_replace($CFG->httpswwwroot.'/','', $CFG->pagepath); // Because the page could be HTTPSPAGEREQUIRED $path = str_replace('.php', '', $path); if (empty($path)) { // Not for home page return ''; } return doc_link($path, $text, $iconpath); } /** * Returns a string containing a link to the user documentation. * Also contains an icon by default. Shown to teachers and admin only. * * @param string $path The page link after doc root and language, no * leading slash. * @param string $text The text to be displayed for the link * @param string $iconpath The path to the icon to be displayed */ function doc_link($path='', $text='', $iconpath='') { global $CFG; if (empty($CFG->docroot)) { return ''; } $target = ''; if (!empty($CFG->doctonewwindow)) { $target = ' target="_blank"'; } $lang = str_replace('_utf8', '', current_language()); $str = '<a href="' .$CFG->docroot. '/' .$lang. '/' .$path. '"' .$target. '>'; if (empty($iconpath)) { $iconpath = $CFG->httpswwwroot . '/pix/docs.gif'; } // alt left blank intentionally to prevent repetition in screenreaders $str .= '<img class="iconhelp" src="' .$iconpath. '" alt="" />' .$text. '</a>'; return $str; } /** * Returns true if the current site debugging settings are equal or above specified level. * If passed a parameter it will emit a debugging notice similar to trigger_error(). The * routing of notices is controlled by $CFG->debugdisplay * eg use like this: * * 1) debugging('a normal debug notice'); * 2) debugging('something really picky', DEBUG_ALL); * 3) debugging('annoying debug message only for develpers', DEBUG_DEVELOPER); * 4) if (debugging()) { perform extra debugging operations (do not use print or echo) } * * In code blocks controlled by debugging() (such as example 4) * any output should be routed via debugging() itself, or the lower-level * trigger_error() or error_log(). Using echo or print will break XHTML * JS and HTTP headers. * * * @param string $message a message to print * @param int $level the level at which this debugging statement should show * @return bool */ function debugging($message='', $level=DEBUG_NORMAL) { global $CFG; if (empty($CFG->debug)) { return false; } if ($CFG->debug >= $level) { if ($message) { $callers = debug_backtrace(); $from = '<ul style="text-align: left">'; foreach ($callers as $caller) { if (!isset($caller['line'])) { $caller['line'] = '?'; // probably call_user_func() } if (!isset($caller['file'])) { $caller['file'] = $CFG->dirroot.'/unknownfile'; // probably call_user_func() } $from .= '<li>line ' . $caller['line'] . ' of ' . substr($caller['file'], strlen($CFG->dirroot) + 1); if (isset($caller['function'])) { $from .= ': call to '; if (isset($caller['class'])) { $from .= $caller['class'] . $caller['type']; } $from .= $caller['function'] . '()'; } $from .= '</li>'; } $from .= '</ul>'; if (!isset($CFG->debugdisplay)) { $CFG->debugdisplay = ini_get_bool('display_errors'); } if ($CFG->debugdisplay) { if (!defined('DEBUGGING_PRINTED')) { define('DEBUGGING_PRINTED', 1); // indicates we have printed something } notify($message . $from, 'notifytiny'); } else { trigger_error($message . $from, E_USER_NOTICE); } } return true; } return false; } /** * Disable debug messages from debugging(), while keeping PHP error reporting level as is. */ function disable_debugging() { global $CFG; $CFG->debug = $CFG->debug | 0x80000000; // switch the sign bit in integer number ;-) } /** * Returns string to add a frame attribute, if required */ function frametarget() { global $CFG; if (empty($CFG->framename) or ($CFG->framename == '_top')) { return ''; } else { return ' target="'.$CFG->framename.'" '; } } /** * Outputs a HTML comment to the browser. This is used for those hard-to-debug * pages that use bits from many different files in very confusing ways (e.g. blocks). * @usage print_location_comment(__FILE__, __LINE__); * @param string $file * @param integer $line * @param boolean $return Whether to return or print the comment * @return mixed Void unless true given as third parameter */ function print_location_comment($file, $line, $return = false) { if ($return) { return "<!-- $file at line $line -->\n"; } else { echo "<!-- $file at line $line -->\n"; } } /** * Returns an image of an up or down arrow, used for column sorting. To avoid unnecessary DB accesses, please * provide this function with the language strings for sortasc and sortdesc. * If no sort string is associated with the direction, an arrow with no alt text will be printed/returned. * @param string $direction 'up' or 'down' * @param string $strsort The language string used for the alt attribute of this image * @param bool $return Whether to print directly or return the html string * @return string HTML for the image * * TODO See if this isn't already defined somewhere. If not, move this to weblib */ function print_arrow($direction='up', $strsort=null, $return=false) { global $CFG; if (!in_array($direction, array('up', 'down', 'right', 'left', 'move'))) { return null; } $return = null; switch ($direction) { case 'up': $sortdir = 'asc'; break; case 'down': $sortdir = 'desc'; break; case 'move': $sortdir = 'asc'; break; default: $sortdir = null; break; } // Prepare language string $strsort = ''; if (empty($strsort) && !empty($sortdir)) { $strsort = get_string('sort' . $sortdir, 'grades'); } $return = ' <img src="'.$CFG->pixpath.'/t/' . $direction . '.gif" alt="'.$strsort.'" /> '; if ($return) { return $return; } else { echo $return; } } /** * Returns boolean true if the current language is right-to-left (Hebrew, Arabic etc) * */ function right_to_left() { static $result; if (isset($result)) { return $result; } return $result = (get_string('thisdirection') == 'rtl'); } /** * Returns swapped left<=>right if in RTL environment. * part of RTL support * * @param string $align align to check * @return string */ function fix_align_rtl($align) { if (!right_to_left()) { return $align; } if ($align=='left') { return 'right'; } if ($align=='right') { return 'left'; } return $align; } /** * Returns true if the page is displayed in a popup window. * Gets the information from the URL parameter inpopup. * * @return boolean * * TODO Use a central function to create the popup calls allover Moodle and * TODO In the moment only works with resources and probably questions. */ function is_in_popup() { $inpopup = optional_param('inpopup', '', PARAM_BOOL); return ($inpopup); } /** * Return the authentication plugin title * @param string $authtype plugin type * @return string */ function auth_get_plugin_title ($authtype) { $authtitle = get_string("auth_{$authtype}title", "auth"); if ($authtitle == "[[auth_{$authtype}title]]") { $authtitle = get_string("auth_{$authtype}title", "auth_{$authtype}"); } return $authtitle; } /** * Returns a localized sentence in the current language summarizing the current password policy * * @uses $CFG * @return string */ function print_password_policy() { global $CFG; $message = ''; if (!empty($CFG->passwordpolicy)) { $messages = array(); $messages[] = get_string('informminpasswordlength', 'auth', $CFG->minpasswordlength); if (!empty($CFG->minpassworddigits)) { $messages[] = get_string('informminpassworddigits', 'auth', $CFG->minpassworddigits); } if (!empty($CFG->minpasswordlower)) { $messages[] = get_string('informminpasswordlower', 'auth', $CFG->minpasswordlower); } if (!empty($CFG->minpasswordupper)) { $messages[] = get_string('informminpasswordupper', 'auth', $CFG->minpasswordupper); } if (!empty($CFG->minpasswordnonalphanum)) { $messages[] = get_string('informminpasswordnonalphanum', 'auth', $CFG->minpasswordnonalphanum); } $messages = join(', ', $messages); // this is ugly but we do not have anything better yet... $message = get_string('informpasswordpolicy', 'auth', $messages); } return $message; } // vim:autoindent:expandtab:shiftwidth=4:tabstop=4:tw=140: ?>
© 2017 -
ZeroByte.ID
.