Friendica Communications Platform
(please note that this is a clone of the repository at github, issues are handled there)
https://friendi.ca
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420 lines
12 KiB
420 lines
12 KiB
<?php |
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require_once("include/Photo.php"); |
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/** |
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* @brief Fetches attachment data that were generated the old way |
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* |
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* @param string $body Message body |
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* @return array |
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* 'type' -> Message type ("link", "video", "photo") |
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* 'text' -> Text before the shared message |
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* 'after' -> Text after the shared message |
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* 'image' -> Preview image of the message |
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* 'url' -> Url to the attached message |
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* 'title' -> Title of the attachment |
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* 'description' -> Description of the attachment |
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*/ |
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function get_old_attachment_data($body) { |
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$post = array(); |
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// Simplify image codes |
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$body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body); |
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if (preg_match_all("(\[class=(.*?)\](.*?)\[\/class\])ism",$body, $attached, PREG_SET_ORDER)) { |
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foreach ($attached AS $data) { |
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if (!in_array($data[1], array("type-link", "type-video", "type-photo"))) |
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continue; |
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$post["type"] = substr($data[1], 5); |
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$pos = strpos($body, $data[0]); |
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if ($pos > 0) { |
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$post["text"] = trim(substr($body, 0, $pos)); |
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$post["after"] = trim(substr($body, $pos + strlen($data[0]))); |
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} else |
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$post["text"] = trim(str_replace($data[0], "", $body)); |
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$attacheddata = $data[2]; |
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$URLSearchString = "^\[\]"; |
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if (preg_match("/\[img\]([$URLSearchString]*)\[\/img\]/ism", $attacheddata, $matches)) { |
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$picturedata = get_photo_info($matches[1]); |
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if (($picturedata[0] >= 500) AND ($picturedata[0] >= $picturedata[1])) |
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$post["image"] = $matches[1]; |
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else |
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$post["preview"] = $matches[1]; |
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} |
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if (preg_match("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism", $attacheddata, $matches)) { |
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$post["url"] = $matches[1]; |
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$post["title"] = $matches[2]; |
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} |
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// Search for description |
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if (preg_match("/\[quote\](.*?)\[\/quote\]/ism", $attacheddata, $matches)) |
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$post["description"] = $matches[1]; |
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} |
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} |
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return $post; |
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} |
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/** |
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* @brief Fetches attachment data that were generated with the "attachment" element |
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* |
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* @param string $body Message body |
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* @return array |
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* 'type' -> Message type ("link", "video", "photo") |
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* 'text' -> Text before the shared message |
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* 'after' -> Text after the shared message |
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* 'image' -> Preview image of the message |
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* 'url' -> Url to the attached message |
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* 'title' -> Title of the attachment |
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* 'description' -> Description of the attachment |
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*/ |
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function get_attachment_data($body) { |
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$data = array(); |
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if (!preg_match("/(.*)\[attachment(.*)\](.*?)\[\/attachment\](.*)/ism", $body, $match)) |
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return get_old_attachment_data($body); |
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$attributes = $match[2]; |
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$data["text"] = trim($match[1]); |
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$type = ""; |
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preg_match("/type='(.*?)'/ism", $attributes, $matches); |
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if ($matches[1] != "") |
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$type = strtolower($matches[1]); |
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preg_match('/type="(.*?)"/ism', $attributes, $matches); |
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if ($matches[1] != "") |
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$type = strtolower($matches[1]); |
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if ($type == "") |
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return(array()); |
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if (!in_array($type, array("link", "audio", "photo", "video"))) |
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return(array()); |
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if ($type != "") |
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$data["type"] = $type; |
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$url = ""; |
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preg_match("/url='(.*?)'/ism", $attributes, $matches); |
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if ($matches[1] != "") |
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$url = $matches[1]; |
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preg_match('/url="(.*?)"/ism', $attributes, $matches); |
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if ($matches[1] != "") |
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$url = $matches[1]; |
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if ($url != "") |
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$data["url"] = html_entity_decode($url, ENT_QUOTES, 'UTF-8'); |
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$title = ""; |
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preg_match("/title='(.*?)'/ism", $attributes, $matches); |
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if ($matches[1] != "") |
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$title = $matches[1]; |
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preg_match('/title="(.*?)"/ism', $attributes, $matches); |
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if ($matches[1] != "") |
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$title = $matches[1]; |
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if ($title != "") { |
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$title = bbcode(html_entity_decode($title, ENT_QUOTES, 'UTF-8'), false, false, true); |
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$title = html_entity_decode($title, ENT_QUOTES, 'UTF-8'); |
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$title = str_replace(array("[", "]"), array("[", "]"), $title); |
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$data["title"] = $title; |
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} |
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$image = ""; |
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preg_match("/image='(.*?)'/ism", $attributes, $matches); |
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if ($matches[1] != "") |
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$image = $matches[1]; |
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preg_match('/image="(.*?)"/ism', $attributes, $matches); |
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if ($matches[1] != "") |
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$image = $matches[1]; |
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if ($image != "") |
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$data["image"] = html_entity_decode($image, ENT_QUOTES, 'UTF-8'); |
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$preview = ""; |
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preg_match("/preview='(.*?)'/ism", $attributes, $matches); |
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if ($matches[1] != "") |
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$preview = $matches[1]; |
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preg_match('/preview="(.*?)"/ism', $attributes, $matches); |
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if ($matches[1] != "") |
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$preview = $matches[1]; |
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if ($preview != "") |
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$data["preview"] = html_entity_decode($preview, ENT_QUOTES, 'UTF-8'); |
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$data["description"] = trim($match[3]); |
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$data["after"] = trim($match[4]); |
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return($data); |
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} |
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function get_attached_data($body) { |
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/* |
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- text: |
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- type: link, video, photo |
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- title: |
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- url: |
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- image: |
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- description: |
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- (thumbnail) |
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*/ |
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$post = get_attachment_data($body); |
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// if nothing is found, it maybe having an image. |
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if (!isset($post["type"])) { |
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require_once("mod/parse_url.php"); |
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require_once("include/Photo.php"); |
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$URLSearchString = "^\[\]"; |
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if (preg_match_all("(\[url=([$URLSearchString]*)\]\s*\[img\]([$URLSearchString]*)\[\/img\]\s*\[\/url\])ism", $body, $pictures, PREG_SET_ORDER)) { |
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if (count($pictures) == 1) { |
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// Checking, if the link goes to a picture |
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$data = parseurl_getsiteinfo_cached($pictures[0][1], true); |
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if ($data["type"] == "photo") { |
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$post["type"] = "photo"; |
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if (isset($data["images"][0])) { |
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$post["image"] = $data["images"][0]["src"]; |
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$post["url"] = $data["url"]; |
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} else |
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$post["image"] = $data["url"]; |
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$post["preview"] = $pictures[0][2]; |
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$post["text"] = str_replace($pictures[0][0], "", $body); |
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} else { |
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$imgdata = get_photo_info($pictures[0][1]); |
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if (substr($imgdata["mime"], 0, 6) == "image/") { |
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$post["type"] = "photo"; |
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$post["image"] = $pictures[0][1]; |
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$post["preview"] = $pictures[0][2]; |
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$post["text"] = str_replace($pictures[0][0], "", $body); |
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} |
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} |
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} elseif (count($pictures) > 1) { |
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$post["type"] = "link"; |
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$post["url"] = $b["plink"]; |
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$post["image"] = $pictures[0][2]; |
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$post["text"] = $body; |
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} |
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} elseif (preg_match_all("(\[img\]([$URLSearchString]*)\[\/img\])ism", $body, $pictures, PREG_SET_ORDER)) { |
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if (count($pictures) == 1) { |
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$post["type"] = "photo"; |
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$post["image"] = $pictures[0][1]; |
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$post["text"] = str_replace($pictures[0][0], "", $body); |
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} elseif (count($pictures) > 1) { |
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$post["type"] = "link"; |
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$post["url"] = $b["plink"]; |
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$post["image"] = $pictures[0][1]; |
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$post["text"] = $body; |
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} |
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} |
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if (preg_match_all("(\[url\]([$URLSearchString]*)\[\/url\])ism", $body, $links, PREG_SET_ORDER)) { |
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if (count($links) == 1) { |
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$post["type"] = "text"; |
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$post["url"] = $links[0][1]; |
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$post["text"] = $body; |
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} |
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} |
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if (!isset($post["type"])) { |
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$post["type"] = "text"; |
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$post["text"] = trim($body); |
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} |
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} elseif (isset($post["url"]) AND ($post["type"] == "video")) { |
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require_once("mod/parse_url.php"); |
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$data = parseurl_getsiteinfo_cached($post["url"], true); |
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if (isset($data["images"][0])) |
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$post["image"] = $data["images"][0]["src"]; |
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} |
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return($post); |
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} |
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function shortenmsg($msg, $limit, $twitter = false) { |
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/// @TODO |
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/// For Twitter URLs aren't shortened, but they have to be calculated as if. |
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$lines = explode("\n", $msg); |
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$msg = ""; |
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$recycle = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8'); |
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foreach ($lines AS $row=>$line) { |
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if (iconv_strlen(trim($msg."\n".$line), "UTF-8") <= $limit) |
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$msg = trim($msg."\n".$line); |
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// Is the new message empty by now or is it a reshared message? |
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elseif (($msg == "") OR (($row == 1) AND (substr($msg, 0, 4) == $recycle))) |
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$msg = iconv_substr(iconv_substr(trim($msg."\n".$line), 0, $limit, "UTF-8"), 0, -3, "UTF-8")."..."; |
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else |
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break; |
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} |
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return($msg); |
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} |
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/** |
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* @brief Convert a message into plaintext for connectors to other networks |
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* |
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* @param App $a The application class |
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* @param array $b The message array that is about to be posted |
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* @param int $limit The maximum number of characters when posting to that network |
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* @param bool $includedlinks Has an attached link to be included into the message? |
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* @param int $htmlmode This triggers the behaviour of the bbcode conversion |
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* @param string $target_network Name of the network where the post should go to. |
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* |
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* @return string The converted message |
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*/ |
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function plaintext($a, $b, $limit = 0, $includedlinks = false, $htmlmode = 2, $target_network = "") { |
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require_once("include/bbcode.php"); |
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require_once("include/html2plain.php"); |
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require_once("include/network.php"); |
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// Remove the hash tags |
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$URLSearchString = "^\[\]"; |
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$body = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $b["body"]); |
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// Add an URL element if the text contains a raw link |
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$body = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2[/url]', $body); |
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// Remove the abstract |
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$body = remove_abstract($body); |
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// At first look at data that is attached via "type-..." stuff |
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// This will hopefully replaced with a dedicated bbcode later |
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//$post = get_attached_data($b["body"]); |
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$post = get_attached_data($body); |
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if (($b["title"] != "") AND ($post["text"] != "")) |
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$post["text"] = trim($b["title"]."\n\n".$post["text"]); |
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elseif ($b["title"] != "") |
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$post["text"] = trim($b["title"]); |
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$abstract = ""; |
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// Fetch the abstract from the given target network |
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if ($target_network != "") { |
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$default_abstract = fetch_abstract($b["body"]); |
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$abstract = fetch_abstract($b["body"], $target_network); |
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// If we post to a network with no limit we only fetch |
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// an abstract exactly for this network |
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if (($limit == 0) AND ($abstract == $default_abstract)) |
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$abstract = ""; |
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} else // Try to guess the correct target network |
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switch ($htmlmode) { |
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case 8: |
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$abstract = fetch_abstract($b["body"], NETWORK_TWITTER); |
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break; |
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case 7: |
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$abstract = fetch_abstract($b["body"], NETWORK_STATUSNET); |
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break; |
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case 6: |
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$abstract = fetch_abstract($b["body"], NETWORK_APPNET); |
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break; |
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default: // We don't know the exact target. |
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// We fetch an abstract since there is a posting limit. |
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if ($limit > 0) |
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$abstract = fetch_abstract($b["body"]); |
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} |
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if ($abstract != "") { |
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$post["text"] = $abstract; |
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if ($post["type"] == "text") { |
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$post["type"] = "link"; |
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$post["url"] = $b["plink"]; |
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} |
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} |
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$html = bbcode($post["text"].$post["after"], false, false, $htmlmode); |
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$msg = html2plain($html, 0, true); |
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$msg = trim(html_entity_decode($msg,ENT_QUOTES,'UTF-8')); |
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$link = ""; |
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if ($includedlinks) { |
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if ($post["type"] == "link") |
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$link = $post["url"]; |
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elseif ($post["type"] == "text") |
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$link = $post["url"]; |
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elseif ($post["type"] == "video") |
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$link = $post["url"]; |
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elseif ($post["type"] == "photo") |
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$link = $post["image"]; |
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if (($msg == "") AND isset($post["title"])) |
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$msg = trim($post["title"]); |
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if (($msg == "") AND isset($post["description"])) |
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$msg = trim($post["description"]); |
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// If the link is already contained in the post, then it neeedn't to be added again |
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// But: if the link is beyond the limit, then it has to be added. |
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if (($link != "") AND strstr($msg, $link)) { |
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$pos = strpos($msg, $link); |
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// Will the text be shortened in the link? |
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// Or is the link the last item in the post? |
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if (($limit > 0) AND ($pos < $limit) AND (($pos + 23 > $limit) OR ($pos + strlen($link) == strlen($msg)))) |
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$msg = trim(str_replace($link, "", $msg)); |
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elseif (($limit == 0) OR ($pos < $limit)) { |
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// The limit has to be increased since it will be shortened - but not now |
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// Only do it with Twitter (htmlmode = 8) |
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if (($limit > 0) AND (strlen($link) > 23) AND ($htmlmode == 8)) |
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$limit = $limit - 23 + strlen($link); |
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$link = ""; |
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if ($post["type"] == "text") |
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unset($post["url"]); |
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} |
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} |
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} |
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if ($limit > 0) { |
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// Reduce multiple spaces |
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// When posted to a network with limited space, we try to gain space where possible |
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while (strpos($msg, " ") !== false) |
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$msg = str_replace(" ", " ", $msg); |
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// Twitter is using its own limiter, so we always assume that shortened links will have this length |
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if (iconv_strlen($link, "UTF-8") > 0) |
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$limit = $limit - 23; |
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if (iconv_strlen($msg, "UTF-8") > $limit) { |
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if (($post["type"] == "text") AND isset($post["url"])) |
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$post["url"] = $b["plink"]; |
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elseif (!isset($post["url"])) { |
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$limit = $limit - 23; |
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$post["url"] = $b["plink"]; |
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} elseif (strpos($b["body"], "[share") !== false) |
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$post["url"] = $b["plink"]; |
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elseif (get_pconfig($b["uid"], "system", "no_intelligent_shortening")) |
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$post["url"] = $b["plink"]; |
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$msg = shortenmsg($msg, $limit); |
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} |
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} |
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$post["text"] = trim($msg); |
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return($post); |
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} |
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?>
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