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   1  <?php
   2  
   3  ///////////////////////////////////////////////////////////////////////////
   4  //                                                                       //
   5  // This file is part of Moodle - http://moodle.org/                      //
   6  // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   7  //                                                                       //
   8  // Moodle is free software: you can redistribute it and/or modify        //
   9  // it under the terms of the GNU General Public License as published by  //
  10  // the Free Software Foundation, either version 3 of the License, or     //
  11  // (at your option) any later version.                                   //
  12  //                                                                       //
  13  // Moodle is distributed in the hope that it will be useful,             //
  14  // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  15  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  16  // GNU General Public License for more details.                          //
  17  //                                                                       //
  18  // You should have received a copy of the GNU General Public License     //
  19  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.       //
  20  //                                                                       //
  21  ///////////////////////////////////////////////////////////////////////////
  22  
  23  /*
  24   * @package    course
  25   * @subpackage publish
  26   * @author     Jerome Mouneyrac <jerome@mouneyrac.com>
  27   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
  28   * @copyright  (C) 1999 onwards Martin Dougiamas  http://dougiamas.com
  29   *
  30   * This page display the publication metadata form
  31   */
  32  
  33  require_once('../../config.php');
  34  require_once($CFG->dirroot . '/course/publish/forms.php');
  35  require_once($CFG->dirroot . '/' . $CFG->admin . '/registration/lib.php');
  36  require_once($CFG->dirroot . '/course/publish/lib.php');
  37  require_once($CFG->libdir . '/filelib.php');
  38  
  39  
  40  //check user access capability to this page
  41  $id = required_param('id', PARAM_INT);
  42  
  43  $course = $DB->get_record('course', array('id' => $id), '*', MUST_EXIST);
  44  require_login($course);
  45  
  46  //page settings
  47  $PAGE->set_url('/course/publish/metadata.php', array('id' => $course->id));
  48  $PAGE->set_pagelayout('incourse');
  49  $PAGE->set_title(get_string('course') . ': ' . $course->fullname);
  50  $PAGE->set_heading($course->fullname);
  51  
  52  //check that the PHP xmlrpc extension is enabled
  53  if (!extension_loaded('xmlrpc')) {
  54      $errornotification = $OUTPUT->doc_link('admin/environment/php_extension/xmlrpc', '');
  55      $errornotification .= get_string('xmlrpcdisabledpublish', 'hub');
  56      $context = context_course::instance($course->id);
  57      $shortname = format_string($course->shortname, true, array('context' => $context));
  58      echo $OUTPUT->header();
  59      echo $OUTPUT->heading(get_string('publishcourse', 'hub', $shortname), 3, 'main');
  60      echo $OUTPUT->notification($errornotification);
  61      echo $OUTPUT->footer();
  62      die();
  63  }
  64  
  65  if (has_capability('moodle/course:publish', context_course::instance($id))) {
  66  
  67      //retrieve hub name and hub url
  68      $huburl = optional_param('huburl', '', PARAM_URL);
  69      $hubname = optional_param('hubname', '', PARAM_TEXT);
  70      if (empty($huburl) or !confirm_sesskey()) {
  71          throw new moodle_exception('missingparameter');
  72      }
  73  
  74      //set the publication form
  75      $advertise = optional_param('advertise', false, PARAM_BOOL);
  76      $share = optional_param('share', false, PARAM_BOOL);
  77      $coursepublicationform = new course_publication_form('',
  78                      array('huburl' => $huburl, 'hubname' => $hubname, 'sesskey' => sesskey(),
  79                          'course' => $course, 'advertise' => $advertise, 'share' => $share,
  80                          'id' => $id, 'page' => $PAGE));
  81      $fromform = $coursepublicationform->get_data();
  82  
  83      //retrieve the token to call the hub
  84      $registrationmanager = new registration_manager();
  85      $registeredhub = $registrationmanager->get_registeredhub($huburl);
  86  
  87      //setup web service xml-rpc client
  88      $serverurl = $huburl . "/local/hub/webservice/webservices.php";
  89      require_once($CFG->dirroot . "/webservice/xmlrpc/lib.php");
  90      $xmlrpcclient = new webservice_xmlrpc_client($serverurl, $registeredhub->token);
  91  
  92      if (!empty($fromform)) {
  93  
  94          $publicationmanager = new course_publish_manager();
  95  
  96          //retrieve the course information
  97          $courseinfo = new stdClass();
  98          $courseinfo->fullname = $fromform->name;
  99          $courseinfo->shortname = $fromform->courseshortname;
 100          $courseinfo->description = $fromform->description;
 101          $courseinfo->language = $fromform->language;
 102          $courseinfo->publishername = $fromform->publishername;
 103          $courseinfo->publisheremail = $fromform->publisheremail;
 104          $courseinfo->contributornames = $fromform->contributornames;
 105          $courseinfo->coverage = $fromform->coverage;
 106          $courseinfo->creatorname = $fromform->creatorname;
 107          $courseinfo->licenceshortname = $fromform->licence;
 108          $courseinfo->subject = $fromform->subject;
 109          $courseinfo->audience = $fromform->audience;
 110          $courseinfo->educationallevel = $fromform->educationallevel;
 111          $creatornotes = $fromform->creatornotes;
 112          $courseinfo->creatornotes = $creatornotes['text'];
 113          $courseinfo->creatornotesformat = $creatornotes['format'];
 114          $courseinfo->sitecourseid = $id;
 115          if (!empty($fromform->deletescreenshots)) {
 116              $courseinfo->deletescreenshots = $fromform->deletescreenshots;
 117          }
 118          if ($share) {
 119              $courseinfo->demourl = $fromform->demourl;
 120              $courseinfo->enrollable = false;
 121          } else {
 122              $courseinfo->courseurl = $fromform->courseurl;
 123              $courseinfo->enrollable = true;
 124          }
 125  
 126          //retrieve the outcomes of this course
 127          require_once($CFG->libdir . '/grade/grade_outcome.php');
 128          $outcomes = grade_outcome::fetch_all_available($id);
 129          if (!empty($outcomes)) {
 130              foreach ($outcomes as $outcome) {
 131                  $sentoutcome = new stdClass();
 132                  $sentoutcome->fullname = $outcome->fullname;
 133                  $courseinfo->outcomes[] = $sentoutcome;
 134              }
 135          }
 136  
 137          //retrieve the content information from the course
 138          $coursecontext = context_course::instance($course->id);
 139          $courseblocks = $publicationmanager->get_block_instances_by_context($coursecontext->id, 'blockname');
 140  
 141          if (!empty($courseblocks)) {
 142              $blockname = '';
 143              foreach ($courseblocks as $courseblock) {
 144                  if ($courseblock->blockname != $blockname) {
 145                      if (!empty($blockname)) {
 146                          $courseinfo->contents[] = $content;
 147                      }
 148  
 149                      $blockname = $courseblock->blockname;
 150                      $content = new stdClass();
 151                      $content->moduletype = 'block';
 152                      $content->modulename = $courseblock->blockname;
 153                      $content->contentcount = 1;
 154                  } else {
 155                      $content->contentcount = $content->contentcount + 1;
 156                  }
 157              }
 158              $courseinfo->contents[] = $content;
 159          }
 160  
 161          $activities = get_fast_modinfo($course, $USER->id);
 162          foreach ($activities->instances as $activityname => $activitydetails) {
 163              $content = new stdClass();
 164              $content->moduletype = 'activity';
 165              $content->modulename = $activityname;
 166              $content->contentcount = count($activities->instances[$activityname]);
 167              $courseinfo->contents[] = $content;
 168          }
 169  
 170          //save into screenshots field the references to the screenshot content hash
 171          //(it will be like a unique id from the hub perspective)
 172          if (!empty($fromform->deletescreenshots) or $share) {
 173              $courseinfo->screenshots = 0;
 174          } else {
 175              $courseinfo->screenshots = $fromform->existingscreenshotnumber;
 176          }
 177          if (!empty($fromform->screenshots)) {
 178              $screenshots = $fromform->screenshots;
 179              $fs = get_file_storage();
 180              $files = $fs->get_area_files(context_user::instance($USER->id)->id, 'user', 'draft', $screenshots);
 181              if (!empty($files)) {
 182                  $courseinfo->screenshots = $courseinfo->screenshots + count($files) - 1; //minus the ./ directory
 183              }
 184          }
 185  
 186          // PUBLISH ACTION
 187  
 188          //publish the course information
 189          $function = 'hub_register_courses';
 190          $params = array('courses' => array($courseinfo));
 191          try {
 192              $courseids = $xmlrpcclient->call($function, $params);
 193          } catch (Exception $e) {
 194              throw new moodle_exception('errorcoursepublish', 'hub',
 195                      new moodle_url('/course/view.php', array('id' => $id)), $e->getMessage());
 196          }
 197  
 198          if (count($courseids) != 1) {
 199              throw new moodle_exception('errorcoursewronglypublished', 'hub');
 200          }
 201  
 202          //save the record into the published course table
 203          $publication = $publicationmanager->get_publication($courseids[0], $huburl);
 204          if (empty($publication)) {
 205              //if never been published or if we share, we need to save this new publication record
 206              $publicationmanager->add_course_publication($registeredhub->huburl, $course->id, !$share, $courseids[0]);
 207          } else {
 208              //if we update the enrollable course publication we update the publication record
 209              $publicationmanager->update_enrollable_course_publication($publication->id);
 210          }
 211  
 212          // SEND FILES
 213          $curl = new curl();
 214  
 215          // send screenshots
 216          if (!empty($fromform->screenshots)) {
 217  
 218              if (!empty($fromform->deletescreenshots) or $share) {
 219                  $screenshotnumber = 0;
 220              } else {
 221                  $screenshotnumber = $fromform->existingscreenshotnumber;
 222              }
 223              foreach ($files as $file) {
 224                  if ($file->is_valid_image()) {
 225                      $screenshotnumber = $screenshotnumber + 1;
 226                      $params = array();
 227                      $params['filetype'] = HUB_SCREENSHOT_FILE_TYPE;
 228                      $params['file'] = $file;
 229                      $params['courseid'] = $courseids[0];
 230                      $params['filename'] = $file->get_filename();
 231                      $params['screenshotnumber'] = $screenshotnumber;
 232                      $params['token'] = $registeredhub->token;
 233                      $curl->post($huburl . "/local/hub/webservice/upload.php", $params);
 234                  }
 235              }
 236          }
 237  
 238          //redirect to the backup process page
 239          if ($share) {
 240              $params = array('sesskey' => sesskey(), 'id' => $id, 'hubcourseid' => $courseids[0],
 241                  'huburl' => $huburl, 'hubname' => $hubname);
 242              $backupprocessurl = new moodle_url("/course/publish/backup.php", $params);
 243              redirect($backupprocessurl);
 244          } else {
 245              //redirect to the index publis page
 246              redirect(new moodle_url('/course/publish/index.php',
 247                              array('sesskey' => sesskey(), 'id' => $id, 'published' => true,
 248                                  'hubname' => $hubname, 'huburl' => $huburl)));
 249          }
 250      }
 251  
 252      /////// OUTPUT SECTION /////////////
 253  
 254      echo $OUTPUT->header();
 255      echo $OUTPUT->heading(get_string('publishcourseon', 'hub', !empty($hubname) ? $hubname : $huburl), 3, 'main');
 256  
 257      //display hub information (logo, name, description)
 258      $function = 'hub_get_info';
 259      $params = array();
 260      try {
 261          $hubinfo = $xmlrpcclient->call($function, $params);
 262      } catch (Exception $e) {
 263          //only print error log in apache (for backward compatibility)
 264          error_log(print_r($e->getMessage(), true));
 265      }
 266      $renderer = $PAGE->get_renderer('core', 'publish');
 267      if (!empty($hubinfo)) {
 268          echo $renderer->hubinfo($hubinfo);
 269      }
 270  
 271      //display metadata form
 272      $coursepublicationform->display();
 273      echo $OUTPUT->footer();
 274  }