Beispiel #1
0
 function post()
 {
     parse_str(trim(file_get_contents("php://input")), $vars);
     // Check that both source and target are non-empty
     if (!empty($vars['source']) && !empty($vars['target']) && $vars['source'] != $vars['target']) {
         $source = $vars['source'];
         $target = $vars['target'];
         // Remove anchors from target URL, but save them to '#' input so we can still reference them later
         if (strpos($target, '#')) {
             list($target, $fragment) = explode('#', $target, 2);
             if (!empty($fragment)) {
                 $this->setInput('#', $fragment);
             }
         }
         // Get the page handler for target
         if ($page = \Idno\Core\Idno::site()->getPageHandler($target)) {
             // First of all, make sure the target page isn't the source page. Let's not webmention ourselves!
             $webmention_ok = true;
             if (\Idno\Common\Entity::isLocalUUID($source)) {
                 if ($source_page = \Idno\Core\Idno::site()->getPageHandler($source)) {
                     if ($source_page == $page) {
                         $webmention_ok = false;
                     }
                 }
             }
             // Check that source exists, parse it for mf2 content,
             // and ensure that it genuinely mentions this page
             if ($webmention_ok) {
                 if ($source_content = \Idno\Core\Webservice::get($source)) {
                     if (substr_count($source_content['content'], $target) || $source_content['response'] == 410) {
                         $source_mf2 = \Idno\Core\Webmention::parseContent($source_content['content'], $source);
                         // Set source and target information as input variables
                         $page->setPermalink();
                         if ($page->webmentionContent($source, $target, $source_content, $source_mf2)) {
                             $this->setResponse(202);
                             // Webmention received a-ok.
                             exit;
                         } else {
                             $error = 'target_not_supported';
                             $error_text = 'This is not webmentionable.';
                         }
                     } else {
                         $error = 'no_link_found';
                         $error_text = 'The source URI does not contain a link to the target URI.';
                         \Idno\Core\Idno::site()->logging->warning('No link from ' . $source . ' to ' . $target);
                     }
                 } else {
                     $error = 'source_not_found';
                     $error_text = 'The source content for ' . $source . ' could not be obtained.';
                     \Idno\Core\Idno::site()->logging->warning('No content from ' . $source);
                 }
             } else {
                 $error = 'target_not_supported';
                 $error_text = 'A page can\'t webmention itself.';
             }
         } else {
             $error = 'target_not_found';
             $error_text = 'The target page ' . $target . ' does not exist.';
             \Idno\Core\Idno::site()->logging()->error('Could not find handler for ' . $target);
         }
     }
     $this->setResponse(400);
     // Webmention failed.
     if (empty($error)) {
         $error = 'unknown_error';
         $error_text = 'Not all the required webmention variables were set.';
     }
     echo json_encode(array('error' => $error, 'error_text' => $error_text));
 }