424 lines
12 KiB
PHP
424 lines
12 KiB
PHP
<?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"] = $url;
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$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 = $matches[1];
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//$title = htmlentities($title, ENT_QUOTES, 'UTF-8', false);
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$title = bbcode(html_entity_decode($title, ENT_QUOTES, 'UTF-8'), false, false, true);
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$title = str_replace(array("[", "]"), array("[", "]"), $title);
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if ($title != "")
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$data["title"] = $title;
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$image = "";
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if ($type != "video") {
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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 = $matches[1];
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}
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if ($image != "")
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$data["image"] = $image;
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$preview = "";
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if ($type != "video") {
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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 = $matches[1];
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}
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if ($preview != "")
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$data["preview"] = $preview;
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$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"], 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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