From 792f069c6e328b20ff198a68ad699befc04972a9 Mon Sep 17 00:00:00 2001 From: Adam Magness Date: Fri, 26 Jan 2018 19:04:04 -0500 Subject: [PATCH] Create Plaintext class create Plaintext class with functions from include/plaintext --- src/Content/Text/Plaintext.php | 507 +++++++++++++++++++++++++++++++++ 1 file changed, 507 insertions(+) create mode 100644 src/Content/Text/Plaintext.php diff --git a/src/Content/Text/Plaintext.php b/src/Content/Text/Plaintext.php new file mode 100644 index 0000000000..1463e9f349 --- /dev/null +++ b/src/Content/Text/Plaintext.php @@ -0,0 +1,507 @@ + Message type ("link", "video", "photo") + * 'text' -> Text before the shared message + * 'after' -> Text after the shared message + * 'image' -> Preview image of the message + * 'url' -> Url to the attached message + * 'title' -> Title of the attachment + * 'description' -> Description of the attachment + */ + function getOldAttachmentData($body) + { + $post = []; + + // Simplify image codes + $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body); + + if (preg_match_all("(\[class=(.*?)\](.*?)\[\/class\])ism", $body, $attached, PREG_SET_ORDER)) { + foreach ($attached as $data) { + if (!in_array($data[1], ["type-link", "type-video", "type-photo"])) { + continue; + } + + $post["type"] = substr($data[1], 5); + + $pos = strpos($body, $data[0]); + if ($pos > 0) { + $post["text"] = trim(substr($body, 0, $pos)); + $post["after"] = trim(substr($body, $pos + strlen($data[0]))); + } else { + $post["text"] = trim(str_replace($data[0], "", $body)); + } + + $attacheddata = $data[2]; + + $URLSearchString = "^\[\]"; + + if (preg_match("/\[img\]([$URLSearchString]*)\[\/img\]/ism", $attacheddata, $matches)) { + + $picturedata = Image::getInfoFromURL($matches[1]); + + if (($picturedata[0] >= 500) && ($picturedata[0] >= $picturedata[1])) { + $post["image"] = $matches[1]; + } else { + $post["preview"] = $matches[1]; + } + } + + if (preg_match("/\[bookmark\=([$URLSearchString]*)\](.*?)\[\/bookmark\]/ism", $attacheddata, $matches)) { + $post["url"] = $matches[1]; + $post["title"] = $matches[2]; + } + if (($post["url"] == "") && (in_array($post["type"], ["link", "video"])) + && preg_match("/\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", $attacheddata, $matches)) { + $post["url"] = $matches[1]; + } + + // Search for description + if (preg_match("/\[quote\](.*?)\[\/quote\]/ism", $attacheddata, $matches)) { + $post["description"] = $matches[1]; + } + } + } + return $post; + } + + /** + * @brief Fetches attachment data that were generated with the "attachment" element + * + * @param string $body Message body + * @return array + * 'type' -> Message type ("link", "video", "photo") + * 'text' -> Text before the shared message + * 'after' -> Text after the shared message + * 'image' -> Preview image of the message + * 'url' -> Url to the attached message + * 'title' -> Title of the attachment + * 'description' -> Description of the attachment + */ + function getAttachmentData($body) + { + $data = []; + + if (!preg_match("/(.*)\[attachment(.*?)\](.*?)\[\/attachment\](.*)/ism", $body, $match)) { + return get_old_attachment_data($body); + } + + $attributes = $match[2]; + + $data["text"] = trim($match[1]); + + $type = ""; + preg_match("/type='(.*?)'/ism", $attributes, $matches); + if (x($matches, 1)) { + $type = strtolower($matches[1]); + } + + preg_match('/type="(.*?)"/ism', $attributes, $matches); + if (x($matches, 1)) { + $type = strtolower($matches[1]); + } + + if ($type == "") { + return []; + } + + if (!in_array($type, ["link", "audio", "photo", "video"])) { + return []; + } + + if ($type != "") { + $data["type"] = $type; + } + + $url = ""; + preg_match("/url='(.*?)'/ism", $attributes, $matches); + if (x($matches, 1)) { + $url = $matches[1]; + } + + preg_match('/url="(.*?)"/ism', $attributes, $matches); + if (x($matches, 1)) { + $url = $matches[1]; + } + + if ($url != "") { + $data["url"] = html_entity_decode($url, ENT_QUOTES, 'UTF-8'); + } + + $title = ""; + preg_match("/title='(.*?)'/ism", $attributes, $matches); + if (x($matches, 1)) { + $title = $matches[1]; + } + + preg_match('/title="(.*?)"/ism', $attributes, $matches); + if (x($matches, 1)) { + $title = $matches[1]; + } + + if ($title != "") { + $title = bbcode(html_entity_decode($title, ENT_QUOTES, 'UTF-8'), false, false, true); + $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8'); + $title = str_replace(["[", "]"], ["[", "]"], $title); + $data["title"] = $title; + } + + $image = ""; + preg_match("/image='(.*?)'/ism", $attributes, $matches); + if (x($matches, 1)) { + $image = $matches[1]; + } + + preg_match('/image="(.*?)"/ism', $attributes, $matches); + if (x($matches, 1)) { + $image = $matches[1]; + } + + if ($image != "") { + $data["image"] = html_entity_decode($image, ENT_QUOTES, 'UTF-8'); + } + + $preview = ""; + preg_match("/preview='(.*?)'/ism", $attributes, $matches); + if (x($matches, 1)) { + $preview = $matches[1]; + } + + preg_match('/preview="(.*?)"/ism', $attributes, $matches); + if (x($matches, 1)) { + $preview = $matches[1]; + } + + if ($preview != "") { + $data["preview"] = html_entity_decode($preview, ENT_QUOTES, 'UTF-8'); + } + + $data["description"] = trim($match[3]); + + $data["after"] = trim($match[4]); + + return $data; + } + + function getAttachedData($body, $item = []) + { + /* + - text: + - type: link, video, photo + - title: + - url: + - image: + - description: + - (thumbnail) + */ + + $has_title = !empty($item['title']); + $plink = (!empty($item['plink']) ? $item['plink'] : ''); + $post = get_attachment_data($body); + + // if nothing is found, it maybe having an image. + if (!isset($post["type"])) { + // Simplify image codes + $body = preg_replace("/\[img\=([0-9]*)x([0-9]*)\](.*?)\[\/img\]/ism", '[img]$3[/img]', $body); + + $URLSearchString = "^\[\]"; + if (preg_match_all("(\[url=([$URLSearchString]*)\]\s*\[img\]([$URLSearchString]*)\[\/img\]\s*\[\/url\])ism", $body, $pictures, PREG_SET_ORDER)) { + if ((count($pictures) == 1) && !$has_title) { + // Checking, if the link goes to a picture + $data = ParseUrl::getSiteinfoCached($pictures[0][1], true); + + // Workaround: + // Sometimes photo posts to the own album are not detected at the start. + // So we seem to cannot use the cache for these cases. That's strange. + if (($data["type"] != "photo") && strstr($pictures[0][1], "/photos/")) { + $data = ParseUrl::getSiteinfo($pictures[0][1], true); + } + + if ($data["type"] == "photo") { + $post["type"] = "photo"; + if (isset($data["images"][0])) { + $post["image"] = $data["images"][0]["src"]; + $post["url"] = $data["url"]; + } else { + $post["image"] = $data["url"]; + } + + $post["preview"] = $pictures[0][2]; + $post["text"] = str_replace($pictures[0][0], "", $body); + } else { + $imgdata = Image::getInfoFromURL($pictures[0][1]); + if (substr($imgdata["mime"], 0, 6) == "image/") { + $post["type"] = "photo"; + $post["image"] = $pictures[0][1]; + $post["preview"] = $pictures[0][2]; + $post["text"] = str_replace($pictures[0][0], "", $body); + } + } + } elseif (count($pictures) > 0) { + $post["type"] = "link"; + $post["url"] = $plink; + $post["image"] = $pictures[0][2]; + $post["text"] = $body; + } + } elseif (preg_match_all("(\[img\]([$URLSearchString]*)\[\/img\])ism", $body, $pictures, PREG_SET_ORDER)) { + if ((count($pictures) == 1) && !$has_title) { + $post["type"] = "photo"; + $post["image"] = $pictures[0][1]; + $post["text"] = str_replace($pictures[0][0], "", $body); + } elseif (count($pictures) > 0) { + $post["type"] = "link"; + $post["url"] = $plink; + $post["image"] = $pictures[0][1]; + $post["text"] = $body; + } + } + + // Test for the external links + preg_match_all("(\[url\]([$URLSearchString]*)\[\/url\])ism", $body, $links1, PREG_SET_ORDER); + preg_match_all("(\[url\=([$URLSearchString]*)\].*?\[\/url\])ism", $body, $links2, PREG_SET_ORDER); + + $links = array_merge($links1, $links2); + + // If there is only a single one, then use it. + // This should cover link posts via API. + if ((count($links) == 1) && !isset($post["preview"]) && !$has_title) { + $post["type"] = "link"; + $post["text"] = trim($body); + $post["url"] = $links[0][1]; + } + + // Now count the number of external media links + preg_match_all("(\[vimeo\](.*?)\[\/vimeo\])ism", $body, $links1, PREG_SET_ORDER); + preg_match_all("(\[youtube\\](.*?)\[\/youtube\\])ism", $body, $links2, PREG_SET_ORDER); + preg_match_all("(\[video\\](.*?)\[\/video\\])ism", $body, $links3, PREG_SET_ORDER); + preg_match_all("(\[audio\\](.*?)\[\/audio\\])ism", $body, $links4, PREG_SET_ORDER); + + // Add them to the other external links + $links = array_merge($links, $links1, $links2, $links3, $links4); + + // Are there more than one? + if (count($links) > 1) { + // The post will be the type "text", which means a blog post + unset($post["type"]); + $post["url"] = $plink; + } + + if (!isset($post["type"])) { + $post["type"] = "text"; + $post["text"] = trim($body); + } + } elseif (isset($post["url"]) && ($post["type"] == "video")) { + $data = ParseUrl::getSiteinfoCached($post["url"], true); + + if (isset($data["images"][0])) { + $post["image"] = $data["images"][0]["src"]; + } + } + + return $post; + } + + /** + * Shortens message + * + * @param type $msg + * @param type $limit + * @return type + * + * @todo For Twitter URLs aren't shortened, but they have to be calculated as if. + */ + function shortenMsg($msg, $limit) + { + $lines = explode("\n", $msg); + $msg = ""; + $recycle = html_entity_decode("♲ ", ENT_QUOTES, 'UTF-8'); + $ellipsis = html_entity_decode("…", ENT_QUOTES, 'UTF-8'); + foreach ($lines as $row => $line) { + if (iconv_strlen(trim($msg . "\n" . $line), "UTF-8") <= $limit) { + $msg = trim($msg . "\n" . $line); + } elseif (($msg == "") || (($row == 1) && (substr($msg, 0, 4) == $recycle))) { + // Is the new message empty by now or is it a reshared message? + $msg = iconv_substr(iconv_substr(trim($msg . "\n" . $line), 0, $limit, "UTF-8"), 0, -3, "UTF-8") . $ellipsis; + } else { + break; + } + } + + return $msg; + } + + /** + * @brief Convert a message into plaintext for connectors to other networks + * + * @param array $b The message array that is about to be posted + * @param int $limit The maximum number of characters when posting to that network + * @param bool $includedlinks Has an attached link to be included into the message? + * @param int $htmlmode This triggers the behaviour of the bbcode conversion + * @param string $target_network Name of the network where the post should go to. + * + * @return string The converted message + */ + function toPlaintext($b, $limit = 0, $includedlinks = false, $htmlmode = 2, $target_network = "") + { + // Remove the hash tags + $URLSearchString = "^\[\]"; + $body = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $b["body"]); + + // Add an URL element if the text contains a raw link + $body = preg_replace("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", '$1[url]$2[/url]', $body); + + // Remove the abstract + $body = remove_abstract($body); + + // At first look at data that is attached via "type-..." stuff + // This will hopefully replaced with a dedicated bbcode later + //$post = get_attached_data($b["body"]); + $post = get_attached_data($body, $b); + + if (($b["title"] != "") && ($post["text"] != "")) { + $post["text"] = trim($b["title"]."\n\n".$post["text"]); + } elseif ($b["title"] != "") { + $post["text"] = trim($b["title"]); + } + + $abstract = ""; + + // Fetch the abstract from the given target network + if ($target_network != "") { + $default_abstract = fetch_abstract($b["body"]); + $abstract = fetch_abstract($b["body"], $target_network); + + // If we post to a network with no limit we only fetch + // an abstract exactly for this network + if (($limit == 0) && ($abstract == $default_abstract)) { + $abstract = ""; + } + } else {// Try to guess the correct target network + switch ($htmlmode) { + case 8: + $abstract = fetch_abstract($b["body"], NETWORK_TWITTER); + break; + case 7: + $abstract = fetch_abstract($b["body"], NETWORK_STATUSNET); + break; + case 6: + $abstract = fetch_abstract($b["body"], NETWORK_APPNET); + break; + default: // We don't know the exact target. + // We fetch an abstract since there is a posting limit. + if ($limit > 0) { + $abstract = fetch_abstract($b["body"]); + } + } + } + + if ($abstract != "") { + $post["text"] = $abstract; + + if ($post["type"] == "text") { + $post["type"] = "link"; + $post["url"] = $b["plink"]; + } + } + + $html = bbcode($post["text"].$post["after"], false, false, $htmlmode); + $msg = html2plain($html, 0, true); + $msg = trim(html_entity_decode($msg, ENT_QUOTES, 'UTF-8')); + + $link = ""; + if ($includedlinks) { + if ($post["type"] == "link") { + $link = $post["url"]; + } elseif ($post["type"] == "text") { + $link = $post["url"]; + } elseif ($post["type"] == "video") { + $link = $post["url"]; + } elseif ($post["type"] == "photo") { + $link = $post["image"]; + } + + if (($msg == "") && isset($post["title"])) { + $msg = trim($post["title"]); + } + + if (($msg == "") && isset($post["description"])) { + $msg = trim($post["description"]); + } + + // If the link is already contained in the post, then it neeedn't to be added again + // But: if the link is beyond the limit, then it has to be added. + if (($link != "") && strstr($msg, $link)) { + $pos = strpos($msg, $link); + + // Will the text be shortened in the link? + // Or is the link the last item in the post? + if (($limit > 0) && ($pos < $limit) && (($pos + 23 > $limit) || ($pos + strlen($link) == strlen($msg)))) { + $msg = trim(str_replace($link, "", $msg)); + } elseif (($limit == 0) || ($pos < $limit)) { + // The limit has to be increased since it will be shortened - but not now + // Only do it with Twitter (htmlmode = 8) + if (($limit > 0) && (strlen($link) > 23) && ($htmlmode == 8)) { + $limit = $limit - 23 + strlen($link); + } + + $link = ""; + + if ($post["type"] == "text") { + unset($post["url"]); + } + } + } + } + + if ($limit > 0) { + // Reduce multiple spaces + // When posted to a network with limited space, we try to gain space where possible + while (strpos($msg, " ") !== false) { + $msg = str_replace(" ", " ", $msg); + } + + // Twitter is using its own limiter, so we always assume that shortened links will have this length + if (iconv_strlen($link, "UTF-8") > 0) { + $limit = $limit - 23; + } + + if (iconv_strlen($msg, "UTF-8") > $limit) { + if (($post["type"] == "text") && isset($post["url"])) { + $post["url"] = $b["plink"]; + } elseif (!isset($post["url"])) { + $limit = $limit - 23; + $post["url"] = $b["plink"]; + // Which purpose has this line? It is now uncommented, but left as a reminder + //} elseif (strpos($b["body"], "[share") !== false) { + // $post["url"] = $b["plink"]; + } elseif (PConfig::get($b["uid"], "system", "no_intelligent_shortening")) { + $post["url"] = $b["plink"]; + } + $msg = shortenmsg($msg, $limit); + } + } + + $post["text"] = trim($msg); + + return($post); + } +}