Automatically retrieve description for new bookmarks

If the option is enabled, it will try to find a meta tag containing
the page description and keywords, just like we do for the page title.
It will either look for regular meta tag or OpenGraph ones.

The option is disabled by default.

Note that keywords meta tags is mostly not used.

In `configure` template, the variable associated with this setting
is `$retrieve_description`.

Fixes #1302

1 files changed, 4 insertions, 1 deletions

diff --git a/index.php b/index.php
index a14616ed..957d8d9a 100644
--- a/index.php
+++ b/index.php
@@ -1015,6 +1015,7 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
             $conf->set('general.timezone', $tz);
             $conf->set('general.title', escape($_POST['title']));
             $conf->set('general.header_link', escape($_POST['titleLink']));
+            $conf->set('general.retrieve_description', !empty($_POST['retrieveDescription']));
             $conf->set('resource.theme', escape($_POST['theme']));
             $conf->set('security.session_protection_disabled', !empty($_POST['disablesessionprotection']));
             $conf->set('privacy.default_private_links', !empty($_POST['privateLinkByDefault']));
@@ -1063,6 +1064,7 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
             );
             $PAGE->assign('continents', $continents);
             $PAGE->assign('cities', $cities);
+            $PAGE->assign('retrieve_description', $conf->get('general.retrieve_description'));
             $PAGE->assign('private_links_default', $conf->get('privacy.default_private_links', false));
             $PAGE->assign('session_protection_disabled', $conf->get('security.session_protection_disabled', false));
             $PAGE->assign('enable_rss_permalinks', $conf->get('feed.rss_permalinks', false));
@@ -1364,13 +1366,14 @@ function renderPage($conf, $pluginManager, $LINKSDB, $history, $sessionManager,
             // If this is an HTTP(S) link, we try go get the page to extract
             // the title (otherwise we will to straight to the edit form.)
             if (empty($title) && strpos(get_url_scheme($url), 'http') !== false) {
+                $retrieveDescription = $conf->get('general.retrieve_description');
                 // Short timeout to keep the application responsive
                 // The callback will fill $charset and $title with data from the downloaded page.
                 get_http_response(
                     $url,
                     $conf->get('general.download_timeout', 30),
                     $conf->get('general.download_max_size', 4194304),
-                    get_curl_download_callback($charset, $title)
+                    get_curl_download_callback($charset, $title, $description, $tags, $retrieveDescription)
                 );
                 if (! empty($title) && strtolower($charset) != 'utf-8') {
                     $title = mb_convert_encoding($title, 'utf-8', $charset);