]> git.mxchange.org Git - friendica.git/blobdiff - include/bbcode.php
Move fetch_url
[friendica.git] / include / bbcode.php
index 196c3ca3c1578e76bf3954ecf542aa53b6ec24b5..0544c4c61665e1f285ee2122bfb56d7e582e5ec7 100644 (file)
@@ -1,17 +1,22 @@
 <?php
-
+/**
+ * @file include/bbcode.php
+ */
 use Friendica\App;
 use Friendica\Content\Smilies;
+use Friendica\Content\OEmbed;
+use Friendica\Content\Text\BBCode;
+use Friendica\Core\Addon;
 use Friendica\Core\Cache;
+use Friendica\Core\L10n;
 use Friendica\Core\System;
 use Friendica\Core\Config;
-use Friendica\Object\Contact;
+use Friendica\Model\Contact;
+use Friendica\Util\Map;
+use Friendica\Util\Network;
 
-require_once 'include/oembed.php';
 require_once 'include/event.php';
-require_once 'include/map.php';
 require_once 'mod/proxy.php';
-require_once 'include/plaintext.php';
 
 function bb_PictureCacheExt($matches) {
        if (strpos($matches[3], "data:image/") === 0) {
@@ -33,81 +38,90 @@ function bb_PictureCache($matches) {
 
 function bb_map_coords($match) {
        // the extra space in the following line is intentional
-       return str_replace($match[0], '<div class="map"  >' . generate_map(str_replace('/', ' ', $match[1])) . '</div>', $match[0]);
+       return str_replace($match[0], '<div class="map"  >' . Map::byCoordinates(str_replace('/', ' ', $match[1])) . '</div>', $match[0]);
 }
 function bb_map_location($match) {
        // the extra space in the following line is intentional
-       return str_replace($match[0], '<div class="map"  >' . generate_named_map($match[1]) . '</div>', $match[0]);
+       return str_replace($match[0], '<div class="map"  >' . Map::byLocation($match[1]) . '</div>', $match[0]);
 }
 
-function bb_attachment($Text, $simplehtml = false, $tryoembed = true) {
-
-       $data = get_attachment_data($Text);
+/**
+ * Processes [attachment] tags
+ *
+ * Note: Can produce a [bookmark] tag in the returned string
+ *
+ * @brief Processes [attachment] tags
+ * @param string $return
+ * @param bool|int $simplehtml
+ * @param bool $tryoembed
+ * @return string
+ */
+function bb_attachment($return, $simplehtml = false, $tryoembed = true)
+{
+       $data = BBCode::getAttachmentData($return);
        if (!$data) {
-               return $Text;
+               return $return;
        }
 
        if (isset($data["title"])) {
                $data["title"] = strip_tags($data["title"]);
-               $data["title"] = str_replace(array("http://", "https://"), "", $data["title"]);
+               $data["title"] = str_replace(["http://", "https://"], "", $data["title"]);
        }
 
-       if (((strpos($data["text"], "[img=") !== false)
-               || (strpos($data["text"], "[img]") !== false)
-               || Config::get('system', 'always_show_preview'))
-               && ($data["image"] != "")) {
+       if (((strpos($data["text"], "[img=") !== false) || (strpos($data["text"], "[img]") !== false) || Config::get('system', 'always_show_preview')) && ($data["image"] != "")) {
                $data["preview"] = $data["image"];
                $data["image"] = "";
        }
 
+       $return = '';
        if ($simplehtml == 7) {
-               $text = style_url_for_mastodon($data["url"]);
+               $return = style_url_for_mastodon($data["url"]);
        } elseif (($simplehtml != 4) && ($simplehtml != 0)) {
-               $text = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
+               $return = sprintf('<a href="%s" target="_blank">%s</a><br>', $data["url"], $data["title"]);
        } else {
-               if ($simplehtml != 4) {
-                       $text = sprintf('<span class="type-%s">', $data["type"]);
-               } else {
-                       $span_end = '';
-               }
-
-               $bookmark = array(sprintf('[bookmark=%s]%s[/bookmark]', $data["url"], $data["title"]), $data["url"], $data["title"]);
-               if ($tryoembed) {
-                       $oembed = tryoembed($bookmark);
-               } else {
-                       $oembed = $bookmark[0];
-               }
+               try {
+                       if ($tryoembed && OEmbed::isAllowedURL($data['url'])) {
+                               $return = OEmbed::getHTML($data['url'], $data['title']);
+                       } else {
+                               throw new Exception('OEmbed is disabled for this attachment.');
+                       }
+               } catch (Exception $e) {
+                       if ($simplehtml != 4) {
+                               $return = sprintf('<div class="type-%s">', $data["type"]);
+                       }
 
-               if (strstr(strtolower($oembed), "<iframe ")) {
-                       $text = $oembed;
-               } else {
-                       if (($data["image"] != "") && !strstr(strtolower($oembed), "<img ")) {
-                               $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
-                       } elseif (($data["preview"] != "") && !strstr(strtolower($oembed), "<img ")) {
-                               $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
+                       if ($data["image"] != "") {
+                               $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a><br />', $data["url"], proxy_url($data["image"]), $data["title"]);
+                       } elseif ($data["preview"] != "") {
+                               $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-preview" /></a><br />', $data["url"], proxy_url($data["preview"]), $data["title"]);
                        }
 
                        if (($data["type"] == "photo") && ($data["url"] != "") && ($data["image"] != "")) {
-                               $text .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a>', $data["url"], proxy_url($data["image"]), $data["title"]);
+                               $return .= sprintf('<a href="%s" target="_blank"><img src="%s" alt="" title="%s" class="attachment-image" /></a>', $data["url"], proxy_url($data["image"]), $data["title"]);
                        } else {
-                               $text .= $oembed;
+                               $return .= sprintf('<h4><a href="%s">%s</a></h4>', $data['url'], $data['title']);
                        }
 
-                       if (trim($data["description"]) != "") {
-                               $text .= sprintf('<blockquote>%s</blockquote>', trim(bbcode($data["description"])));
+                       if ($data["description"] != "" && $data["description"] != $data["title"]) {
+                               $return .= sprintf('<blockquote>%s</blockquote>', trim(bbcode($data["description"])));
                        }
-               }
 
-               if ($simplehtml != 4) {
-                       $text .= '</span>';
+                       if ($data["type"] == "link") {
+                               $return .= sprintf('<sup><a href="%s">%s</a></sup>', $data['url'], parse_url($data['url'], PHP_URL_HOST));
+                       }
+
+                       if ($simplehtml != 4) {
+                               $return .= '</div>';
+                       }
                }
        }
-       return trim($data["text"].' '.$text.' '.$data["after"]);
+
+       return trim($data["text"] . ' ' . $return . ' ' . $data["after"]);
 }
 
 function bb_remove_share_information($Text, $plaintext = false, $nolink = false) {
 
-       $data = get_attachment_data($Text);
+       $data = BBCode::getAttachmentData($Text);
 
        if (!$data) {
                return $Text;
@@ -225,32 +239,6 @@ function stripcode_br_cb($s) {
        return '[code]' . str_replace('<br />', '', $s[1]) . '[/code]';
 }
 
-function tryoembed($match) {
-       $url = $match[1];
-
-       // Always embed the SSL version
-       $url = str_replace(array("http://www.youtube.com/", "http://player.vimeo.com/"),
-                               array("https://www.youtube.com/", "https://player.vimeo.com/"), $url);
-
-       $o = oembed_fetch_url($url);
-
-       if (!is_object($o)) {
-               return $match[0];
-       }
-
-       if (isset($match[2])) {
-               $o->title = $match[2];
-       }
-
-       if ($o->type == "error") {
-               return $match[0];
-       }
-
-       $html = oembed_format_object($o);
-
-       return $html;
-}
-
 /*
  * [noparse][i]italic[/i][/noparse] turns into
  * [noparse][ i ]italic[ /i ][/noparse],
@@ -270,7 +258,6 @@ function bb_spacefy($st) {
  * returning [i]italic[/i]
  */
 function bb_unspacefy_and_trim($st) {
-       $whole_match = $st[0];
        $captured = $st[1];
        $unspacefied = preg_replace("/\[ (.*?)\ ]/", "[$1]", $captured);
        return $unspacefied;
@@ -298,7 +285,7 @@ function bb_find_open_close($s, $open, $close, $occurence = 1) {
                return false;
        }
 
-       $res = array( 'start' => $start_pos, 'end' => $end_pos );
+       $res = [ 'start' => $start_pos, 'end' => $end_pos ];
 
        return $res;
 }
@@ -334,16 +321,16 @@ function get_bb_tag_pos($s, $name, $occurence = 1) {
                return false;
        }
 
-       $res = array(
-               'start' => array(
+       $res = [
+               'start' => [
                        'open'  => $start_open,
                        'close' => $start_close
-               ),
-               'end'   => array(
+               ],
+               'end'   => [
                        'open'  => $end_open,
                        'close' => $end_open + strlen('[/' . $name . ']')
-               ),
-       );
+               ],
+       ];
 
        if ($start_equal !== false) {
                $res['start']['equal'] = $start_equal + 1;
@@ -376,10 +363,9 @@ function bb_tag_preg_replace($pattern, $replace, $name, $s) {
        return $string;
 }
 
-if (! function_exists('bb_extract_images')) {
 function bb_extract_images($body) {
 
-       $saved_image = array();
+       $saved_image = [];
        $orig_body = $body;
        $new_body = '';
 
@@ -417,10 +403,9 @@ function bb_extract_images($body) {
 
        $new_body = $new_body . $orig_body;
 
-       return array('body' => $new_body, 'images' => $saved_image);
-}}
+       return ['body' => $new_body, 'images' => $saved_image];
+}
 
-if (! function_exists('bb_replace_images')) {
 function bb_replace_images($body, $images) {
 
        $newbody = $body;
@@ -430,67 +415,82 @@ function bb_replace_images($body, $images) {
                // We're depending on the property of 'foreach' (specified on the PHP website) that
                // it loops over the array starting from the first element and going sequentially
                // to the last element
-               $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . t('Image/photo') . '" />', $newbody);
+               $newbody = str_replace('[$#saved_image' . $cnt . '#$]', '<img src="' . proxy_url($image) .'" alt="' . L10n::t('Image/photo') . '" />', $newbody);
                $cnt++;
        }
 
        return $newbody;
-}}
+}
 
-function bb_ShareAttributes($share, $simplehtml) {
+/**
+ * Processes [share] tags
+ *
+ * Note: Can produce a [bookmark] tag in the output
+ *
+ * @brief Processes [share] tags
+ * @param array    $share      preg_match_callback result array
+ * @param bool|int $simplehtml
+ * @return string
+ */
+function bb_ShareAttributes($share, $simplehtml)
+{
        $attributes = $share[2];
 
        $author = "";
        preg_match("/author='(.*?)'/ism", $attributes, $matches);
-       if ($matches[1] != "")
-               $author = html_entity_decode($matches[1],ENT_QUOTES,'UTF-8');
+       if (x($matches, 1)) {
+               $author = html_entity_decode($matches[1], ENT_QUOTES, 'UTF-8');
+       }
 
        preg_match('/author="(.*?)"/ism', $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $author = $matches[1];
+       }
 
        $profile = "";
        preg_match("/profile='(.*?)'/ism", $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $profile = $matches[1];
+       }
 
        preg_match('/profile="(.*?)"/ism', $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $profile = $matches[1];
+       }
 
        $avatar = "";
        preg_match("/avatar='(.*?)'/ism", $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $avatar = $matches[1];
+       }
 
        preg_match('/avatar="(.*?)"/ism', $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $avatar = $matches[1];
+       }
 
        $link = "";
        preg_match("/link='(.*?)'/ism", $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $link = $matches[1];
+       }
 
        preg_match('/link="(.*?)"/ism', $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $link = $matches[1];
+       }
 
        $posted = "";
 
-       $itemcache = get_itemcachepath();
-
        preg_match("/posted='(.*?)'/ism", $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $posted = $matches[1];
+       }
 
        preg_match('/posted="(.*?)"/ism', $attributes, $matches);
-       if ($matches[1] != "")
+       if (x($matches, 1)) {
                $posted = $matches[1];
-
-       // relative dates only make sense when they aren't cached
-       if ($itemcache == "")
-               $reldate = (($posted) ? " " . relative_date($posted) : '');
+       }
 
        // We only call this so that a previously unknown contact can be added.
        // This is important for the function "get_contact_details_by_url".
@@ -499,99 +499,116 @@ function bb_ShareAttributes($share, $simplehtml) {
 
        $data = Contact::getDetailsByURL($profile);
 
-       if (isset($data["name"]) && ($data["name"] != "") && isset($data["addr"]) && ($data["addr"] != ""))
-               $userid_compact = $data["name"]." (".$data["addr"].")";
-       else
-               $userid_compact = GetProfileUsername($profile,$author, true);
+       if (x($data, "name") && x($data, "addr")) {
+               $userid_compact = $data["name"] . " (" . $data["addr"] . ")";
+       } else {
+               $userid_compact = GetProfileUsername($profile, $author, true);
+       }
 
-       if (isset($data["addr"]) && ($data["addr"] != ""))
+       if (x($data, "addr")) {
                $userid = $data["addr"];
-       else
-               $userid = GetProfileUsername($profile,$author, false);
+       } else {
+               $userid = GetProfileUsername($profile, $author, false);
+       }
 
-       if (isset($data["name"]) && ($data["name"] != ""))
+       if (x($data, "name")) {
                $author = $data["name"];
+       }
 
-       if (isset($data["micro"]) && ($data["micro"] != ""))
+       if (x($data, "micro")) {
                $avatar = $data["micro"];
+       }
 
        $preshare = trim($share[1]);
-
-       if ($preshare != "")
-               $preshare .= "<br /><br />";
+       if ($preshare != "") {
+               $preshare .= "<br />";
+       }
 
        switch ($simplehtml) {
                case 1:
-                       $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' <a href="'.$profile.'">'.$userid."</a>: <br />»".$share[3]."«";
+                       $text = $preshare . html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8') . ' <a href="' . $profile . '">' . $userid . "</a>: <br />»" . $share[3] . "«";
                        break;
                case 2:
-                       $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
+                       $text = $preshare . html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
                        break;
                case 3: // Diaspora
-                       $headline .= '<b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').$userid.':</b><br />';
+                       $headline .= '<b>' . html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8') . $userid . ':</b><br />';
 
                        $text = trim($share[1]);
 
-                       if ($text != "")
+                       if ($text != "") {
                                $text .= "<hr />";
+                       }
 
-                       if (substr(normalise_link($link), 0, 19) != "http://twitter.com/") {
-                               $text .= $headline.'<blockquote>'.trim($share[3])."</blockquote><br />";
+                       if (stripos(normalise_link($link), 'http://twitter.com/') === 0) {
+                               $text .= $headline . '<blockquote>' . trim($share[3]) . "</blockquote><br />";
 
-                               if ($link != "")
-                                       $text .= '<br /><a href="'.$link.'">[l]</a>';
-                       } else
-                               $text .= '<br /><a href="'.$link.'">'.$link.'</a>';
+                               if ($link != "") {
+                                       $text .= '<br /><a href="' . $link . '">[l]</a>';
+                               }
+                       } else {
+                               $text .= '<br /><a href="' . $link . '">' . $link . '</a>';
+                       }
 
                        break;
                case 4:
-                       $headline .= '<br /><b>'.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
-                       $headline .= sprintf(t('<a href="%1$s" target="_blank">%2$s</a> %3$s'), $link, $userid, $posted);
+                       $headline .= '<br /><b>' . html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8');
+                       $headline .= L10n::t('<a href="%1$s" target="_blank">%2$s</a> %3$s', $link, $userid, $posted);
                        $headline .= ":</b><br />";
 
                        $text = trim($share[1]);
 
-                       if ($text != "")
+                       if ($text != "") {
                                $text .= "<hr />";
+                       }
 
-                       $text .= $headline.'<blockquote class="shared_content">'.trim($share[3])."</blockquote><br />";
+                       $text .= $headline . '<blockquote class="shared_content">' . trim($share[3]) . "</blockquote><br />";
 
                        break;
                case 5:
-                       $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
+                       $text = $preshare . html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
                        break;
                case 6: // app.net
-                       $text = $preshare."&gt;&gt; @".$userid_compact.": <br />".$share[3];
+                       $text = $preshare . "&gt;&gt; @" . $userid_compact . ": <br />" . $share[3];
                        break;
                case 7: // statusnet/GNU Social
-                       $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8')." @".$userid_compact.": ".$share[3];
+                       $text = $preshare . html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8') . " @" . $userid_compact . ": " . $share[3];
                        break;
                case 8: // twitter
-                       $text = $preshare."RT @".$userid_compact.": ".$share[3];
+                       $text = $preshare . "RT @" . $userid_compact . ": " . $share[3];
                        break;
                case 9: // Google+/Facebook
-                       $text = $preshare.html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8').' '.$userid_compact.": <br />".$share[3];
+                       $text = $preshare . html_entity_decode("&#x2672; ", ENT_QUOTES, 'UTF-8') . ' ' . $userid_compact . ": <br />" . $share[3];
 
-                       if ($link != "")
-                               $text .= "<br /><br />".$link;
+                       if ($link != "") {
+                               $text .= "<br /><br />" . $link;
+                       }
                        break;
                default:
-                       $text = trim($share[1])."\n";
-
-                       $avatar = proxy_url($avatar, false, PROXY_SIZE_THUMB);
-
-                       $tpl = get_markup_template('shared_content.tpl');
-                       $text .= replace_macros($tpl,
-                                       array(
-                                               '$profile' => $profile,
-                                               '$avatar' => $avatar,
-                                               '$author' => $author,
-                                               '$link' => $link,
-                                               '$posted' => $posted,
-                                               '$reldate' => $reldate,
-                                               '$content' => trim($share[3])
-                                       )
-                               );
+                       // Transforms quoted tweets in rich attachments to avoid nested tweets
+                       if (stripos(normalise_link($link), 'http://twitter.com/') === 0 && OEmbed::isAllowedURL($link)) {
+                               try {
+                                       $oembed = OEmbed::getHTML($link, $preshare);
+                               } catch (Exception $e) {
+                                       $oembed = sprintf('[bookmark=%s]%s[/bookmark]', $link, $preshare);
+                               }
+
+                               $text = $preshare . $oembed;
+                       } else {
+                               $text = trim($share[1]) . "\n";
+
+                               $avatar = proxy_url($avatar, false, PROXY_SIZE_THUMB);
+
+                               $tpl = get_markup_template('shared_content.tpl');
+                               $text .= replace_macros($tpl, [
+                                       '$profile' => $profile,
+                                       '$avatar' => $avatar,
+                                       '$author' => $author,
+                                       '$link' => $link,
+                                       '$posted' => $posted,
+                                       '$content' => trim($share[3])
+                               ]);
+                       }
                        break;
        }
 
@@ -672,7 +689,7 @@ function GetProfileUsername($profile, $username, $compact = false, $getnetwork =
                $StatusnetUser = preg_replace("=https?://(.*)/user/(.*)=ism", "$2", $profile);
                if ($StatusnetUser != $profile) {
                        /// @TODO Some hosts run on https, not just http and sometimes http is disabled, let's support both here
-                       $UserData = fetch_url("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
+                       $UserData = Network::fetchURL("http://".$StatusnetHost."/api/users/show.json?user_id=".$StatusnetUser);
                        $user = json_decode($UserData);
                        if ($user) {
                                if ($getnetwork) {
@@ -733,14 +750,14 @@ function bb_RemovePictureLinks($match) {
                        // if its not a picture then look if its a page that contains a picture link
                        require_once("include/network.php");
 
-                       $body = fetch_url($match[1]);
+                       $body = Network::fetchURL($match[1]);
 
                        $doc = new DOMDocument();
                        @$doc->loadHTML($body);
                        $xpath = new DomXPath($doc);
                        $list = $xpath->query("//meta[@name]");
                        foreach ($list as $node) {
-                               $attr = array();
+                               $attr = [];
 
                                if ($node->attributes->length)
                                        foreach ($node->attributes as $attribute)
@@ -790,14 +807,14 @@ function bb_CleanPictureLinksSub($match) {
                        // if its not a picture then look if its a page that contains a picture link
                        require_once("include/network.php");
 
-                       $body = fetch_url($match[1]);
+                       $body = Network::fetchURL($match[1]);
 
                        $doc = new DOMDocument();
                        @$doc->loadHTML($body);
                        $xpath = new DomXPath($doc);
                        $list = $xpath->query("//meta[@name]");
                        foreach ($list as $node) {
-                               $attr = array();
+                               $attr = [];
 
                                if ($node->attributes->length)
                                        foreach ($node->attributes as $attribute)
@@ -851,10 +868,31 @@ function bb_highlight($match) {
  * @param bool $forplaintext
  * @return string
  */
-function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false) {
-
+function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = false, $forplaintext = false)
+{
        $a = get_app();
 
+       /*
+        * preg_match_callback function to replace potential Oembed tags with Oembed content
+        *
+        * $match[0] = [tag]$url[/tag] or [tag=$url]$title[/tag]
+        * $match[1] = $url
+        * $match[2] = $title or absent
+        */
+       $tryoembed_callback = function ($match)
+       {
+               $url = $match[1];
+               $title = defaults($match, 2, null);
+
+               try {
+                       $return = OEmbed::getHTML($url, $title);
+               } catch (Exception $ex) {
+                       $return = $match[0];
+               }
+
+               return $return;
+       };
+
        // Hide all [noparse] contained bbtags by spacefying them
        // POSSIBLE BUG --> Will the 'preg' functions crash if there's an embedded image?
 
@@ -918,32 +956,49 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
 
        // removing multiplicated newlines
        if (Config::get("system", "remove_multiplicated_lines")) {
-               $search = array("\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ", "[/attachment]\n",
-                               "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n");
-               $replace = array("\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
-                               "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]");
+               $search = ["\n\n\n", "\n ", " \n", "[/quote]\n\n", "\n[/quote]", "[/li]\n", "\n[li]", "\n[ul]", "[/ul]\n", "\n\n[share ", "[/attachment]\n",
+                               "\n[h1]", "[/h1]\n", "\n[h2]", "[/h2]\n", "\n[h3]", "[/h3]\n", "\n[h4]", "[/h4]\n", "\n[h5]", "[/h5]\n", "\n[h6]", "[/h6]\n"];
+               $replace = ["\n\n", "\n", "\n", "[/quote]\n", "[/quote]", "[/li]", "[li]", "[ul]", "[/ul]", "\n[share ", "[/attachment]",
+                               "[h1]", "[/h1]", "[h2]", "[/h2]", "[h3]", "[/h3]", "[h4]", "[/h4]", "[h5]", "[/h5]", "[h6]", "[/h6]"];
                do {
                        $oldtext = $Text;
                        $Text = str_replace($search, $replace, $Text);
                } while ($oldtext != $Text);
        }
 
+       // Set up the parameters for a URL search string
+       $URLSearchString = "^\[\]";
+       // Set up the parameters for a MAIL search string
+       $MAILSearchString = $URLSearchString;
+
+       // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
+       if (!$forplaintext) {
+               // Autolink feature (thanks to http://code.seebz.net/p/autolink-php/)
+               // Currently disabled, since the function is too greedy
+               // $autolink_regex = "`([^\]\=\"']|^)(https?\://[^\s<]+[^\s<\.\)])`ism";
+               $autolink_regex = "/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism";
+               $Text = preg_replace($autolink_regex, '$1[url]$2[/url]', $Text);
+               if ($simplehtml == 7) {
+                       $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism", 'bb_style_url', $Text);
+                       $Text = preg_replace_callback("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", 'bb_style_url', $Text);
+               }
+       } else {
+               $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism", " $1 ", $Text);
+               $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
+       }
+
+
        // Handle attached links or videos
        $Text = bb_attachment($Text, $simplehtml, $tryoembed);
 
-       $Text = str_replace(array("\r","\n"), array('<br />', '<br />'), $Text);
+       $Text = str_replace(["\r","\n"], ['<br />', '<br />'], $Text);
 
        if ($preserve_nl) {
-               $Text = str_replace(array("\n", "\r"), array('', ''), $Text);
+               $Text = str_replace(["\n", "\r"], ['', ''], $Text);
        }
 
-       // Set up the parameters for a URL search string
-       $URLSearchString = "^\[\]";
-       // Set up the parameters for a MAIL search string
-       $MAILSearchString = $URLSearchString;
-
        // Remove all hashtag addresses
-       if ((!$tryoembed || $simplehtml) && !in_array($simplehtml, array(3, 7))) {
+       if ((!$tryoembed || $simplehtml) && !in_array($simplehtml, [3, 7])) {
                $Text = preg_replace("/([#@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $Text);
        } elseif ($simplehtml == 3) {
                $Text = preg_replace("/([@!])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
@@ -965,7 +1020,7 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
        $Text = preg_replace("/#\[url\=[$URLSearchString]*\]\^\[\/url\]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/i",
                                "[bookmark=$1]$2[/bookmark]", $Text);
 
-       if (in_array($simplehtml, array(2, 6, 7, 8, 9))) {
+       if (in_array($simplehtml, [2, 6, 7, 8, 9])) {
                $Text = preg_replace_callback("/([^#@!])\[url\=([^\]]*)\](.*?)\[\/url\]/ism", "bb_expand_links", $Text);
                //$Text = preg_replace("/[^#@!]\[url\=([^\]]*)\](.*?)\[\/url\]/ism", ' $2 [url]$1[/url]', $Text);
                $Text = preg_replace("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", ' $2 [url]$1[/url]',$Text);
@@ -977,7 +1032,7 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
 
        // Perform URL Search
        if ($tryoembed) {
-               $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", 'tryoembed', $Text);
+               $Text = preg_replace_callback("/\[bookmark\=([^\]]*)\](.*?)\[\/bookmark\]/ism", $tryoembed_callback, $Text);
        }
 
        if ($simplehtml == 5) {
@@ -994,29 +1049,11 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
        $expression = "=diaspora://.*?/post/([0-9A-Za-z\-_@.:]{15,254}[0-9A-Za-z])=ism";
        $Text = preg_replace($expression, System::baseUrl()."/display/$1", $Text);
 
-       // if the HTML is used to generate plain text, then don't do this search, but replace all URL of that kind to text
-//     if ($simplehtml != 7) {
-               if (!$forplaintext) {
-                       if ($simplehtml != 7) {
-                               $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1<a href="$2" target="_blank">$2</a>', $Text);
-                       } else {
-                               $Text = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2[/url]', $Text);
-
-                               $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism", 'bb_style_url', $Text);
-                               $Text = preg_replace_callback("/\[url\=([$URLSearchString]*)\]([$URLSearchString]*)\[\/url\]/ism", 'bb_style_url', $Text);
-                       }
-               } else {
-                       $Text = preg_replace("(\[url\]([$URLSearchString]*)\[\/url\])ism", " $1 ", $Text);
-                       $Text = preg_replace_callback("&\[url=([^\[\]]*)\]\[img\](.*)\[\/img\]\[\/url\]&Usi", 'bb_RemovePictureLinks', $Text);
-               }
-//     }
-
-       if ($tryoembed) {
-               $Text = preg_replace_callback("/\[url\]([$URLSearchString]*)\[\/url\]/ism", 'tryoembed', $Text);
-       }
-
        $Text = preg_replace("/([#])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism",
-                               '$1<a href="$2" class="tag" title="$3">$3</a>', $Text);
+                               '$1<a href="' . System::baseUrl() . '/search?tag=$3" class="tag" title="$3">$3</a>', $Text);
+
+       $Text = preg_replace("/\[url\=([$URLSearchString]*)\]#(.*?)\[\/url\]/ism",
+                               '#<a href="' . System::baseUrl() . '/search?tag=$2" class="tag" title="$2">$2</a>', $Text);
 
        $Text = preg_replace("/\[url\]([$URLSearchString]*)\[\/url\]/ism", '<a href="$1" target="_blank">$1</a>', $Text);
        $Text = preg_replace("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '<a href="$1" target="_blank">$2</a>', $Text);
@@ -1150,7 +1187,7 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
 
        // Check for [spoiler=Author] text
 
-       $t_wrote = t('$1 wrote:');
+       $t_wrote = L10n::t('$1 wrote:');
 
        // handle nested quotes
        $endlessloop = 0;
@@ -1172,7 +1209,7 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
 
        // Check for [quote=Author] text
 
-       $t_wrote = t('$1 wrote:');
+       $t_wrote = L10n::t('$1 wrote:');
 
        // handle nested quotes
        $endlessloop = 0;
@@ -1193,8 +1230,8 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
        // [img]pathtoimage[/img]
        $Text = preg_replace_callback("/\[img\](.*?)\[\/img\]/ism", 'bb_PictureCache', $Text);
 
-       $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
-       $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . t('Image/photo') . '" />', $Text);
+       $Text = preg_replace("/\[img\](.*?)\[\/img\]/ism", '<img src="$1" alt="' . L10n::t('Image/photo') . '" />', $Text);
+       $Text = preg_replace("/\[zmg\](.*?)\[\/zmg\]/ism", '<img src="$1" alt="' . L10n::t('Image/photo') . '" />', $Text);
 
        // Shared content
        $Text = preg_replace_callback("/(.*?)\[share(.*?)\](.*?)\[\/share\]/ism",
@@ -1202,17 +1239,17 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
                        return bb_ShareAttributes($match, $simplehtml);
                }, $Text);
 
-       $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . t('Encrypted content') . '" /><br />', $Text);
-       $Text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
-       //$Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . t('Encrypted content') . '" title="' . '$1' . ' ' . t('Encrypted content') . '" /><br />', $Text);
+       $Text = preg_replace("/\[crypt\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . L10n::t('Encrypted content') . '" title="' . L10n::t('Encrypted content') . '" /><br />', $Text);
+       $Text = preg_replace("/\[crypt(.*?)\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . L10n::t('Encrypted content') . '" title="' . '$1' . ' ' . L10n::t('Encrypted content') . '" /><br />', $Text);
+       //$Text = preg_replace("/\[crypt=(.*?)\](.*?)\[\/crypt\]/ism", '<br/><img src="' .System::baseUrl() . '/images/lock_icon.gif" alt="' . L10n::t('Encrypted content') . '" title="' . '$1' . ' ' . L10n::t('Encrypted content') . '" /><br />', $Text);
 
        // Try to Oembed
        if ($tryoembed) {
-               $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="' . $a->videowidth . '" height="' . $a->videoheight . '"><a href="$1">$1</a></video>', $Text);
+               $Text = preg_replace("/\[video\](.*?\.(ogg|ogv|oga|ogm|webm|mp4))\[\/video\]/ism", '<video src="$1" controls="controls" width="' . $a->videowidth . '" height="' . $a->videoheight . '" loop="true"><a href="$1">$1</a></video>', $Text);
                $Text = preg_replace("/\[audio\](.*?\.(ogg|ogv|oga|ogm|webm|mp4|mp3))\[\/audio\]/ism", '<audio src="$1" controls="controls"><a href="$1">$1</a></audio>', $Text);
 
-               $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", 'tryoembed', $Text);
-               $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", 'tryoembed', $Text);
+               $Text = preg_replace_callback("/\[video\](.*?)\[\/video\]/ism", $tryoembed_callback, $Text);
+               $Text = preg_replace_callback("/\[audio\](.*?)\[\/audio\]/ism", $tryoembed_callback, $Text);
        } else {
                $Text = preg_replace("/\[video\](.*?)\[\/video\]/",
                                        '<a href="$1" target="_blank">$1</a>', $Text);
@@ -1231,9 +1268,9 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
 
        // Youtube extensions
        if ($tryoembed) {
-               $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
-               $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
-               $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism", 'tryoembed', $Text);
+               $Text = preg_replace_callback("/\[youtube\](https?:\/\/www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $tryoembed_callback, $Text);
+               $Text = preg_replace_callback("/\[youtube\](www.youtube.com\/watch\?v\=.*?)\[\/youtube\]/ism", $tryoembed_callback, $Text);
+               $Text = preg_replace_callback("/\[youtube\](https?:\/\/youtu.be\/.*?)\[\/youtube\]/ism", $tryoembed_callback, $Text);
        }
 
        $Text = preg_replace("/\[youtube\]https?:\/\/www.youtube.com\/watch\?v\=(.*?)\[\/youtube\]/ism", '[youtube]$1[/youtube]', $Text);
@@ -1248,8 +1285,8 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
        }
 
        if ($tryoembed) {
-               $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism", 'tryoembed', $Text);
-               $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism", 'tryoembed', $Text);
+               $Text = preg_replace_callback("/\[vimeo\](https?:\/\/player.vimeo.com\/video\/[0-9]+).*?\[\/vimeo\]/ism", $tryoembed_callback, $Text);
+               $Text = preg_replace_callback("/\[vimeo\](https?:\/\/vimeo.com\/[0-9]+).*?\[\/vimeo\]/ism", $tryoembed_callback, $Text);
        }
 
        $Text = preg_replace("/\[vimeo\]https?:\/\/player.vimeo.com\/video\/([0-9]+)(.*?)\[\/vimeo\]/ism", '[vimeo]$1[/vimeo]', $Text);
@@ -1265,7 +1302,7 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
 //     $Text = preg_replace("/\[youtube\](.*?)\[\/youtube\]/", '<object width="425" height="350" type="application/x-shockwave-flash" data="http://www.youtube.com/v/$1" ><param name="movie" value="http://www.youtube.com/v/$1"></param><!--[if IE]><embed src="http://www.youtube.com/v/$1" type="application/x-shockwave-flash" width="425" height="350" /><![endif]--></object>', $Text);
 
        // oembed tag
-       $Text = oembed_bbcode2html($Text);
+       $Text = OEmbed::BBCode2HTML($Text);
 
        // Avoid triple linefeeds through oembed
        $Text = str_replace("<br style='clear:left'></span><br /><br />", "<br style='clear:left'></span><br />", $Text);
@@ -1320,20 +1357,20 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
        $Text = preg_replace('/\<([^>]*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism', '<$1$2=$3&$4>', $Text);
 
        // sanitizes src attributes (http and redir URLs for displaying in a web page, cid used for inline images in emails)
-       static $allowed_src_protocols = array('http', 'redir', 'cid');
+       static $allowed_src_protocols = ['http', 'redir', 'cid'];
        $Text = preg_replace('#<([^>]*?)(src)="(?!' . implode('|', $allowed_src_protocols) . ')(.*?)"(.*?)>#ism',
-                            '<$1$2=""$4 class="invalid-src" title="' . t('Invalid source protocol') . '">', $Text);
+                            '<$1$2=""$4 data-original-src="$3" class="invalid-src" title="' . L10n::t('Invalid source protocol') . '">', $Text);
 
        // sanitize href attributes (only whitelisted protocols URLs)
        // default value for backward compatibility
-       $allowed_link_protocols = Config::get('system', 'allowed_link_protocols', array('ftp', 'mailto', 'gopher', 'cid'));
+       $allowed_link_protocols = Config::get('system', 'allowed_link_protocols', ['ftp', 'mailto', 'gopher', 'cid']);
 
        // Always allowed protocol even if config isn't set or not including it
        $allowed_link_protocols[] = 'http';
        $allowed_link_protocols[] = 'redir/';
 
        $regex = '#<([^>]*?)(href)="(?!' . implode('|', $allowed_link_protocols) . ')(.*?)"(.*?)>#ism';
-       $Text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 class="invalid-href" title="' . t('Invalid link protocol') . '">', $Text);
+       $Text = preg_replace($regex, '<$1$2="javascript:void(0)"$4 data-original-href="$3" class="invalid-href" title="' . L10n::t('Invalid link protocol') . '">', $Text);
 
        if ($saved_image) {
                $Text = bb_replace_images($Text, $saved_image);
@@ -1353,7 +1390,7 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
                @$doc->loadHTML($encoding.$doctype."<html><body>".$Text."</body></html>");
                $doc->encoding = 'UTF-8';
                $Text = $doc->saveHTML();
-               $Text = str_replace(array("<html><body>", "</body></html>", $doctype, $encoding), array("", "", "", ""), $Text);
+               $Text = str_replace(["<html><body>", "</body></html>", $doctype, $encoding], ["", "", "", ""], $Text);
 
                $Text = str_replace('<br></li>', '</li>', $Text);
 
@@ -1367,7 +1404,7 @@ function bbcode($Text, $preserve_nl = false, $tryoembed = true, $simplehtml = fa
        //$Text = str_replace('<br /><li>', '<li>', $Text);
        //$Text = str_replace('<br /><ul', '<ul ', $Text);
 
-       call_hooks('bbcode', $Text);
+       Addon::callHooks('bbcode', $Text);
 
        return trim($Text);
 }
@@ -1394,7 +1431,7 @@ function remove_abstract($text) {
  */
 function fetch_abstract($text, $addon = "") {
        $abstract = "";
-       $abstracts = array();
+       $abstracts = [];
        $addon = strtolower($addon);
 
        if (preg_match_all("/\[abstract=(.*?)\](.*?)\[\/abstract\]/ism",$text, $results, PREG_SET_ORDER))