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   1  <?php
   2  
   3  
   4  namespace dokuwiki\Subscriptions;
   5  
   6  
   7  use Diff;
   8  use InlineDiffFormatter;
   9  use UnifiedDiffFormatter;
  10  
  11  class PageSubscriptionSender extends SubscriptionSender
  12  {
  13  
  14      /**
  15       * Send the diff for some page change
  16       *
  17       * @param string   $subscriber_mail The target mail address
  18       * @param string   $template        Mail template ('subscr_digest', 'subscr_single', 'mailtext', ...)
  19       * @param string   $id              Page for which the notification is
  20       * @param int|null $rev             Old revision if any
  21       * @param string   $summary         Change summary if any
  22       * @param int|null $current_rev     New revision if any
  23       *
  24       * @return bool                     true if successfully sent
  25       */
  26      public function sendPageDiff($subscriber_mail, $template, $id, $rev = null, $summary = '', $current_rev = null)
  27      {
  28          global $DIFF_INLINESTYLES;
  29  
  30          // prepare replacements (keys not set in hrep will be taken from trep)
  31          $trep = [
  32              'PAGE' => $id,
  33              'NEWPAGE' => wl($id, $current_rev?('rev='.$current_rev):'', true, '&'),
  34              'SUMMARY' => $summary,
  35              'SUBSCRIBE' => wl($id, ['do' => 'subscribe'], true, '&'),
  36          ];
  37          $hrep = [];
  38  
  39          if ($rev) {
  40              $subject = 'changed';
  41              $trep['OLDPAGE'] = wl($id, "rev=$rev", true, '&');
  42  
  43              $old_content = rawWiki($id, $rev);
  44              $new_content = rawWiki($id);
  45  
  46              $df = new Diff(
  47                  explode("\n", $old_content),
  48                  explode("\n", $new_content)
  49              );
  50              $dformat = new UnifiedDiffFormatter();
  51              $tdiff = $dformat->format($df);
  52  
  53              $DIFF_INLINESTYLES = true;
  54              $df = new Diff(
  55                  explode("\n", $old_content),
  56                  explode("\n", $new_content)
  57              );
  58              $dformat = new InlineDiffFormatter();
  59              $hdiff = $dformat->format($df);
  60              $hdiff = '<table>' . $hdiff . '</table>';
  61              $DIFF_INLINESTYLES = false;
  62          } else {
  63              $subject = 'newpage';
  64              $trep['OLDPAGE'] = '---';
  65              $tdiff = rawWiki($id);
  66              $hdiff = nl2br(hsc($tdiff));
  67          }
  68  
  69          $trep['DIFF'] = $tdiff;
  70          $hrep['DIFF'] = $hdiff;
  71  
  72          $headers = ['Message-Id' => $this->getMessageID($id)];
  73          if ($rev) {
  74              $headers['In-Reply-To'] = $this->getMessageID($id, $rev);
  75          }
  76  
  77          return $this->send(
  78              $subscriber_mail,
  79              $subject,
  80              $id,
  81              $template,
  82              $trep,
  83              $hrep,
  84              $headers
  85          );
  86      }
  87  
  88  }