1<?php 2 3// This file is part of Moodle - http://moodle.org/ 4// 5// Moodle is free software: you can redistribute it and/or modify 6// it under the terms of the GNU General Public License as published by 7// the Free Software Foundation, either version 3 of the License, or 8// (at your option) any later version. 9// 10// Moodle is distributed in the hope that it will be useful, 11// but WITHOUT ANY WARRANTY; without even the implied warranty of 12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13// GNU General Public License for more details. 14// 15// You should have received a copy of the GNU General Public License 16// along with Moodle. If not, see <http://www.gnu.org/licenses/>. 17 18 19/** 20 * This file is used to manage repositories 21 * 22 * @since Moodle 2.0 23 * @package core 24 * @subpackage repository 25 * @copyright 2009 Dongsheng Cai <dongsheng@moodle.com> 26 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later 27 */ 28 29require_once(__DIR__ . '/../config.php'); 30require_once($CFG->dirroot . '/repository/lib.php'); 31 32$edit = optional_param('edit', 0, PARAM_INT); 33$new = optional_param('new', '', PARAM_ALPHANUMEXT); 34$delete = optional_param('delete', 0, PARAM_INT); 35$sure = optional_param('sure', '', PARAM_ALPHA); 36$contextid = optional_param('contextid', 0, PARAM_INT); 37$usercourseid = optional_param('usercourseid', SITEID, PARAM_INT); // Extra: used for user context only 38 39$url = new moodle_url('/repository/manage_instances.php'); 40 41$baseurl = new moodle_url('/repository/manage_instances.php'); 42$baseurl->param('sesskey', sesskey()); 43 44if ($edit){ 45 $url->param('edit', $edit); 46 $pagename = 'repositoryinstanceedit'; 47} else if ($delete) { 48 $url->param('delete', $delete); 49 $pagename = 'repositorydelete'; 50} else if ($new) { 51 $url->param('new', $new); 52 $pagename = 'repositoryinstancenew'; 53} else { 54 $pagename = 'repositorylist'; 55} 56 57if ($sure !== '') { 58 $url->param('sure', $sure); 59} 60if ($contextid !== 0) { 61 $url->param('contextid', $contextid); 62 $baseurl->param('contextid', $contextid); 63} 64if ($usercourseid != SITEID) { 65 $url->param('usercourseid', $usercourseid); 66} 67 68$context = context::instance_by_id($contextid); 69 70$PAGE->set_url($url); 71$PAGE->set_context($context); 72$PAGE->set_pagelayout('standard'); 73 74/// Security: make sure we're allowed to do this operation 75if ($context->contextlevel == CONTEXT_COURSE) { 76 $pagename = get_string("repositorycourse",'repository'); 77 78 if ( !$course = $DB->get_record('course', array('id'=>$context->instanceid))) { 79 print_error('invalidcourseid'); 80 } 81 require_login($course, false); 82 // If the user is allowed to edit this course, he's allowed to edit list of repository instances 83 require_capability('moodle/course:update', $context); 84 85 86} else if ($context->contextlevel == CONTEXT_USER) { 87 require_login(); 88 $pagename = get_string('manageinstances', 'repository'); 89 //is the user looking at its own repository instances 90 if ($USER->id != $context->instanceid){ 91 print_error('notyourinstances', 'repository'); 92 } 93 $user = $USER; 94} else { 95 print_error('invalidcontext'); 96} 97 98/// Security: we cannot perform any action if the type is not visible or if the context has been disabled 99if (!empty($new) && empty($edit)){ 100 $type = repository::get_type_by_typename($new); 101} else if (!empty($edit)){ 102 $instance = repository::get_repository_by_id($edit, $context->id); 103 $type = repository::get_type_by_id($instance->options['typeid']); 104} else if (!empty($delete)){ 105 $instance = repository::get_repository_by_id($delete, $context->id); 106 $type = repository::get_type_by_id($instance->options['typeid']); 107} 108 109if (isset($type)) { 110 if (!$type->get_visible()) { 111 print_error('typenotvisible', 'repository', $baseurl); 112 } 113 // Prevents the user from creating/editing an instance if the repository is not visible in 114 // this context OR if the user does not have the capability to view this repository in this context. 115 $canviewrepository = has_capability('repository/'.$type->get_typename().':view', $context); 116 if (!$type->get_contextvisibility($context) || !$canviewrepository) { 117 print_error('usercontextrepositorydisabled', 'repository', $baseurl); 118 } 119} 120 121// We have an instance when we are going to edit, or delete. Several checks need to be done! 122if (!empty($instance)) { 123 // The context passed MUST match the context of the repository. And as both have to be 124 // similar, this also ensures that the context is either a user one, or a course one. 125 if ($instance->instance->contextid != $context->id) { 126 print_error('invalidcontext'); 127 } 128 if ($instance->readonly) { 129 // Cannot edit, or delete a readonly instance. 130 throw new repository_exception('readonlyinstance', 'repository'); 131 } else if (!$instance->can_be_edited_by_user()) { 132 // The user has to have the right to edit the instance. 133 throw new repository_exception('nopermissiontoaccess', 'repository'); 134 } 135} 136 137// Create navigation links. 138if (!empty($course)) { 139 $pageheading = $course->fullname; 140} else { 141 $pageheading = $pagename; 142} 143 144// Display page header. 145$PAGE->set_title($pagename); 146$PAGE->set_heading($pageheading); 147 148$return = true; 149if (!empty($edit) || !empty($new)) { 150 if (!empty($edit)) { 151 $instancetype = repository::get_type_by_id($instance->options['typeid']); 152 $classname = 'repository_' . $instancetype->get_typename(); 153 $configs = $instance->get_instance_option_names(); 154 $plugin = $instancetype->get_typename(); 155 $typeid = $instance->options['typeid']; 156 } else { 157 $plugin = $new; 158 $typeid = $new; 159 $instance = null; 160 } 161 162/// Create edit form for this instance 163 $mform = new repository_instance_form('', array('plugin' => $plugin, 'typeid' => $typeid,'instance' => $instance, 'contextid' => $contextid)); 164 165/// Process the form data if any, or display 166 if ($mform->is_cancelled()){ 167 redirect($baseurl); 168 exit; 169 170 } else if ($fromform = $mform->get_data()){ 171 if (!confirm_sesskey()) { 172 print_error('confirmsesskeybad', '', $baseurl); 173 } 174 if ($edit) { 175 $settings = array(); 176 $settings['name'] = $fromform->name; 177 foreach($configs as $config) { 178 $settings[$config] = isset($fromform->$config) ? $fromform->$config : null; 179 } 180 $success = $instance->set_option($settings); 181 } else { 182 $success = repository::static_function($plugin, 'create', $plugin, 0, context::instance_by_id($contextid), $fromform); 183 $data = data_submitted(); 184 } 185 if ($success) { 186 $savedstr = get_string('configsaved', 'repository'); 187 redirect($baseurl); 188 } else { 189 print_error('instancenotsaved', 'repository', $baseurl); 190 } 191 exit; 192 } else { // Display the form 193 echo $OUTPUT->header(); 194 echo $OUTPUT->heading(get_string('configplugin', 'repository_'.$plugin)); 195 $OUTPUT->box_start(); 196 $mform->display(); 197 $OUTPUT->box_end(); 198 $return = false; 199 } 200} else if (!empty($delete)) { 201 if ($sure) { 202 if (!confirm_sesskey()) { 203 print_error('confirmsesskeybad', '', $baseurl); 204 } 205 if ($instance->delete()) { 206 $deletedstr = get_string('instancedeleted', 'repository'); 207 redirect($baseurl, $deletedstr, 3); 208 } else { 209 print_error('instancenotdeleted', 'repository', $baseurl); 210 } 211 exit; 212 } 213 echo $OUTPUT->header(); 214 $formcontinue = new single_button(new moodle_url($baseurl, array('delete' => $delete, 'sure' => 'yes')), get_string('yes')); 215 $formcancel = new single_button($baseurl, get_string('no')); 216 echo $OUTPUT->confirm(get_string('confirmdelete', 'repository', $instance->name), $formcontinue, $formcancel); 217 $return = false; 218} else { 219 echo $OUTPUT->header(); 220 repository::display_instances_list($context); 221 $return = false; 222} 223 224if (!empty($return)) { 225 redirect($baseurl); 226} 227 228echo $OUTPUT->footer(); 229