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Differences Between: [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 and 403]

   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   * Page to allow the administrator to configure networked hosts, and add new ones
  21   *
  22   * @package    core
  23   * @subpackage mnet
  24   * @copyright  2007 Donal McMullan
  25   * @copyright  2007 Martin Langhoff
  26   * @copyright  2010 Penny Leach
  27   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  28   */
  29  
  30  require(__DIR__.'/../../config.php');
  31  require_once($CFG->libdir.'/adminlib.php');
  32  require_once($CFG->dirroot.'/mnet/lib.php');
  33  require_once($CFG->dirroot.'/'.$CFG->admin.'/mnet/peer_forms.php');
  34  
  35  
  36  /// Initialize variables.
  37  $hostid = optional_param('hostid', 0, PARAM_INT);
  38  $updra = optional_param('updateregisterall', 0, PARAM_INT);
  39  
  40  // first process the register all hosts setting if required
  41  if (!empty($updra)) {
  42      set_config('mnet_register_allhosts', optional_param('registerallhosts', 0, PARAM_INT));
  43      redirect(new moodle_url('/admin/mnet/peers.php'), get_string('changessaved'));
  44  }
  45  
  46  $adminsection = 'mnetpeers';
  47  if ($hostid && $DB->get_field('mnet_host', 'deleted', array('id' => $hostid)) != 1) {
  48      $adminsection = 'mnetpeer' . $hostid;
  49  }
  50  
  51  $PAGE->set_url('/admin/mnet/peers.php');
  52  admin_externalpage_setup($adminsection);
  53  
  54  if (!extension_loaded('openssl')) {
  55      print_error('requiresopenssl', 'mnet');
  56  }
  57  
  58  if (!function_exists('curl_init') ) {
  59      print_error('nocurl', 'mnet');
  60  }
  61  
  62  if (!function_exists('xmlrpc_encode_request')) {
  63      print_error('xmlrpc-missing', 'mnet');
  64  }
  65  
  66  if (!isset($CFG->mnet_dispatcher_mode)) {
  67      set_config('mnet_dispatcher_mode', 'off');
  68  }
  69  
  70  $mnet_peer = new mnet_peer();
  71  $simpleform = new mnet_simple_host_form(); // the one that goes on the bottom of the main page
  72  $reviewform = null; // set up later in different code branches, so mnet_peer can be passed to the constructor
  73  
  74  // if the first form has been submitted, bootstrap the peer and load up the review form
  75  if ($formdata = $simpleform->get_data()) {
  76      // ensure we remove trailing slashes
  77      $formdata->wwwroot = trim($formdata->wwwroot);
  78      $formdata->wwwroot = rtrim($formdata->wwwroot, '/');
  79  
  80      // ensure the wwwroot starts with a http or https prefix
  81      if (strtolower(substr($formdata->wwwroot, 0, 4)) != 'http') {
  82          $formdata->wwwroot = 'http://'.$formdata->wwwroot;
  83      }
  84  
  85      $mnet_peer->set_applicationid($formdata->applicationid);
  86      $application = $DB->get_field('mnet_application', 'name', array('id'=>$formdata->applicationid));
  87      $mnet_peer->bootstrap($formdata->wwwroot, null, $application);
  88      // bootstrap the second form straight with the data from the first form
  89      $reviewform = new mnet_review_host_form(null, array('peer' => $mnet_peer)); // the second step (also the edit host form)
  90      $formdata->oldpublickey = $mnet_peer->public_key; // set this so we can confirm on form post without having to recreate the mnet_peer object
  91      $reviewform->set_data($mnet_peer);
  92      echo $OUTPUT->header();
  93      echo $OUTPUT->box_start();
  94      $reviewform->display();
  95      echo $OUTPUT->box_end();
  96      echo $OUTPUT->footer();
  97      exit;
  98  } else if ($simpleform->is_submitted()) { // validation failed
  99      $noreviewform = true;
 100  }
 101  
 102  // editing a host - load up the review form
 103  if (!empty($hostid)) {
 104      // TODO print a nice little heading
 105      $mnet_peer->set_id($hostid);
 106      echo $OUTPUT->header();
 107      $currenttab = 'mnetdetails';
 108      require_once($CFG->dirroot . '/' . $CFG->admin . '/mnet/tabs.php');
 109  
 110      if ($hostid != $CFG->mnet_all_hosts_id) {
 111          $mnet_peer->currentkey = mnet_get_public_key($mnet_peer->wwwroot, $mnet_peer->application);
 112          if ($mnet_peer->currentkey == $mnet_peer->public_key) {
 113              unset($mnet_peer->currentkey);
 114          } else {
 115              error_log($mnet_peer->currentkey);
 116              error_log($mnet_peer->public_key);
 117              error_log(md5($mnet_peer->currentkey));
 118              error_log(md5($mnet_peer->public_key));
 119          }
 120          $credentials = $mnet_peer->check_credentials($mnet_peer->public_key);
 121          $reviewform = new mnet_review_host_form(null, array('peer' => $mnet_peer)); // the second step (also the edit host form)
 122          $mnet_peer->oldpublickey = $mnet_peer->public_key; // set this so we can confirm on form post without having to recreate the mnet_peer object
 123          $reviewform->set_data((object)$mnet_peer);
 124          echo $OUTPUT->box_start();
 125          $reviewform->display();
 126          echo $OUTPUT->box_end();
 127      } else {
 128          // no options for allhosts host - just let the tabs display and print a notification
 129          echo $OUTPUT->notification(get_string('allhosts_no_options', 'mnet'));
 130      }
 131      echo $OUTPUT->footer();
 132      exit;
 133  }
 134  
 135  // either we're in the second step of setting up a new host
 136  // or editing an existing host
 137  // try our best to set up the mnet_peer object to pass to the form definition
 138  // unless validation on simpleform failed, in which case fall through.
 139  if (empty($noreviewform) && $id = optional_param('id', 0, PARAM_INT)) {
 140      // we're editing an existing one, so set up the tabs
 141      $currenttab = 'mnetdetails';
 142      $mnet_peer->set_id($id);
 143      require_once($CFG->dirroot . '/' . $CFG->admin . '/mnet/tabs.php');
 144  } else if (empty($noreviewform) && ($wwwroot = optional_param('wwwroot', '', PARAM_URL)) && ($applicationid = optional_param('applicationid', 0, PARAM_INT))) {
 145      $application = $DB->get_field('mnet_application', 'name', array('id'=>$applicationid));
 146      $mnet_peer->bootstrap($wwwroot, null, $application);
 147  }
 148  $reviewform = new mnet_review_host_form(null, array('peer' => $mnet_peer));
 149  if ($formdata = $reviewform->get_data()) {
 150  
 151      $mnet_peer->set_applicationid($formdata->applicationid);
 152      $application = $DB->get_field('mnet_application', 'name', array('id'=>$formdata->applicationid));
 153      $mnet_peer->bootstrap($formdata->wwwroot, null, $application);
 154  
 155      if (!empty($formdata->name) && $formdata->name != $mnet_peer->name) {
 156          $mnet_peer->set_name($formdata->name);
 157      }
 158  
 159      if (empty($formdata->theme)) {
 160          $mnet_peer->force_theme = 0;
 161          $mnet_peer->theme = null;
 162      } else {
 163          $mnet_peer->force_theme = 1;
 164          $mnet_peer->theme = $formdata->theme;
 165      }
 166  
 167      $mnet_peer->deleted             = $formdata->deleted;
 168      $mnet_peer->public_key          = $formdata->public_key;
 169      $credentials                    = $mnet_peer->check_credentials($mnet_peer->public_key);
 170      $mnet_peer->public_key_expires  = $credentials['validTo_time_t'];
 171      $mnet_peer->sslverification     = $formdata->sslverification;
 172  
 173      if ($mnet_peer->commit()) {
 174          redirect(new moodle_url('/admin/mnet/peers.php', array('hostid' => $mnet_peer->id)), get_string('changessaved'));
 175      } else {
 176          print_error('invalidaction', 'error', 'index.php');
 177      }
 178  } else if ($reviewform->is_submitted()) { // submitted, but errors
 179      echo $OUTPUT->header();
 180      echo $OUTPUT->box_start();
 181      $reviewform->display();
 182      echo $OUTPUT->box_end();
 183      echo $OUTPUT->footer();
 184      exit;
 185  }
 186  
 187  
 188  // normal flow - just display all hosts with links
 189  echo $OUTPUT->header();
 190  $hosts = mnet_get_hosts(true);
 191  
 192  // print the table to display the register all hosts setting
 193  $table = new html_table();
 194  $table->head = array(get_string('registerallhosts', 'mnet'));
 195  
 196  $registerrow = '';
 197  $registerstr = '';
 198  $registerurl = new moodle_url('/admin/mnet/peers.php', array('updateregisterall' => 1));
 199  if (!empty($CFG->mnet_register_allhosts)) {
 200      $registerrow = get_string('registerhostson', 'mnet');
 201      $registerurl->param('registerallhosts', 0);
 202      $registerstr = get_string('turnitoff', 'mnet');
 203  } else {
 204      $registerrow = get_string('registerhostsoff', 'mnet');
 205      $registerurl->param('registerallhosts', 1);
 206      $registerstr = get_string('turniton', 'mnet');
 207  }
 208  $registerrow .= $OUTPUT->single_button($registerurl, $registerstr);
 209  
 210  // simple table with two rows of a single cell
 211  $table->data = array(
 212      array(
 213          get_string('registerallhostsexplain', 'mnet'),
 214      ),
 215      array(
 216          $registerrow
 217      ),
 218  );
 219  echo html_writer::table($table);
 220  
 221  // print the list of all hosts, with little action links and buttons
 222  $table = new html_table();
 223  $table->head = array(
 224      get_string('site'),
 225      get_string('system', 'mnet'),
 226      get_string('last_connect_time', 'mnet'),
 227      '',
 228  );
 229  $table->wrap = array('nowrap', 'nowrap', 'nowrap', 'nowrap');
 230  $baseurl = new moodle_url('/admin/mnet/peers.php');
 231  $deleted = array();
 232  foreach($hosts as $host) {
 233      $hosturl = new moodle_url($baseurl, array('hostid' => $host->id));
 234      if (trim($host->name) === '') {
 235          // should not happen but...
 236          $host->name = '???';
 237      }
 238      // process all hosts first since it's the easiest
 239      if ($host->id == $CFG->mnet_all_hosts_id) {
 240          $table->data[] = array(html_writer::link($hosturl, get_string('allhosts', 'core_mnet')), '*', '', '');
 241          continue;
 242      }
 243  
 244      // populate the list of deleted hosts
 245      if ($host->deleted) {
 246          $deleted[] = html_writer::link($hosturl, $host->name);
 247          continue;
 248      }
 249  
 250      if ($host->last_connect_time == 0) {
 251          $last_connect = get_string('never');
 252      } else {
 253          $last_connect = userdate($host->last_connect_time, get_string('strftimedatetime', 'core_langconfig'));
 254      }
 255      $table->data[] = array(
 256          html_writer::link($hosturl, $host->name),
 257          html_writer::link($host->wwwroot, $host->wwwroot),
 258          $last_connect,
 259          $OUTPUT->single_button(new moodle_url('/admin/mnet/delete.php', array('hostid' => $host->id)), get_string('delete'))
 260      );
 261  }
 262  echo html_writer::table($table);
 263  
 264  if ($deleted) {
 265      echo $OUTPUT->box(get_string('deletedhosts', 'core_mnet', join(', ', $deleted)), 'deletedhosts');
 266  }
 267  
 268  // finally, print the initial form to add a new host
 269  echo $OUTPUT->box_start();
 270  echo $OUTPUT->heading(get_string('addnewhost', 'mnet'), 3);
 271  $simpleform->display();
 272  echo $OUTPUT->box_end();
 273  
 274  // done
 275  echo $OUTPUT->footer();
 276  exit;
 277