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https://github.com/friendica/friendica
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Merge pull request #4881 from MrPetovan/task/4867-guess-language-from-plaintext
Guess language from plaintext
This commit is contained in:
Michael Vogel
GitHub
commit
37e5272f92
4 changed files with 203 additions and 159 deletions
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@ -23,6 +23,12 @@ function babel_content()
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'content' => visible_lf($bbcode)
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];
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$plain = Text\BBCode::toPlaintext($bbcode, false);
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$results[] = [
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'title' => L10n::t('BBCode::toPlaintext'),
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'content' => visible_lf($plain)
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];
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$html = Text\BBCode::convert($bbcode);
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$results[] = [
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'title' => L10n::t("BBCode::convert \x28raw HTML\x29"),
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@ -343,159 +343,20 @@ class BBCode extends BaseObject
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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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* @brief Converts a BBCode text into plaintext
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*
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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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* @param bool $keep_urls Whether to keep URLs in the resulting plaintext
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*
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* @return string The converted message
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* @return string
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*/
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public static function toPlaintext($b, $limit = 0, $includedlinks = false, $htmlmode = 2, $target_network = "")
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public static function toPlaintext($text, $keep_urls = true)
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{
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// Remove the hash tags
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$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 = self::stripAbstract($body);
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// At first look at data that is attached via "type-..." stuff
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// This will hopefully replaced with a dedicated bbcode later
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//$post = self::getAttachedData($b["body"]);
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$post = self::getAttachedData($body, $b);
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if (($b["title"] != "") && ($post["text"] != "")) {
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$post["text"] = trim($b["title"]."\n\n".$post["text"]);
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} elseif ($b["title"] != "") {
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$post["text"] = trim($b["title"]);
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$naked_text = preg_replace('/\[(.+?)\]/','', $text);
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if (!$keep_urls) {
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$naked_text = preg_replace('#https?\://[^\s<]+[^\s\.\)]#i', '', $naked_text);
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}
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$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 = self::getAbstract($b["body"]);
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$abstract = self::getAbstract($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) && ($abstract == $default_abstract)) {
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$abstract = "";
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}
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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 = self::getAbstract($b["body"], NETWORK_TWITTER);
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break;
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case 7:
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$abstract = self::getAbstract($b["body"], NETWORK_STATUSNET);
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break;
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case 6:
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$abstract = self::getAbstract($b["body"], NETWORK_APPNET);
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break;
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default: // We don't know the exact target.
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// We fetch an abstract since there is a posting limit.
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if ($limit > 0) {
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$abstract = self::getAbstract($b["body"]);
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}
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}
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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 = self::convert($post["text"].$post["after"], false, $htmlmode);
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$msg = HTML::toPlaintext($html, 0, true);
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$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 = $post["image"];
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}
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if (($msg == "") && isset($post["title"])) {
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$msg = trim($post["title"]);
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}
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if (($msg == "") && isset($post["description"])) {
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$msg = trim($post["description"]);
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}
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// If the link is already contained in the post, then it neeedn't to be added again
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// But: if the link is beyond the limit, then it has to be added.
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if (($link != "") && 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) && ($pos < $limit) && (($pos + 23 > $limit) || ($pos + strlen($link) == strlen($msg)))) {
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$msg = trim(str_replace($link, "", $msg));
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} elseif (($limit == 0) || ($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) && (strlen($link) > 23) && ($htmlmode == 8)) {
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$limit = $limit - 23 + strlen($link);
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}
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$link = "";
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if ($post["type"] == "text") {
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unset($post["url"]);
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}
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}
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}
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}
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if ($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(" ", " ", $msg);
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}
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// Twitter is using its own limiter, so we always assume that shortened links will have this length
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if (iconv_strlen($link, "UTF-8") > 0) {
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$limit = $limit - 23;
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}
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if (iconv_strlen($msg, "UTF-8") > $limit) {
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if (($post["type"] == "text") && 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"] = $b["plink"];
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// Which purpose has this line? It is now uncommented, but left as a reminder
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//} elseif (strpos($b["body"], "[share") !== false) {
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// $post["url"] = $b["plink"];
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} elseif (PConfig::get($b["uid"], "system", "no_intelligent_shortening")) {
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$post["url"] = $b["plink"];
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}
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$msg = Plaintext::shorten($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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return $naked_text;
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}
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public static function scaleExternalImages($srctext, $include_link = true, $scale_replace = false)
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@ -1947,7 +1808,7 @@ class BBCode extends BaseObject
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* @param string $addon The addon for which the abstract is meant for
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* @return string The abstract
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*/
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private static function getAbstract($text, $addon = "")
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public static function getAbstract($text, $addon = "")
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{
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$abstract = "";
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$abstracts = [];
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@ -7,6 +7,7 @@
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namespace Friendica\Model;
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use Friendica\BaseObject;
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use Friendica\Content\Text;
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use Friendica\Core\Addon;
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use Friendica\Core\Config;
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use Friendica\Core\L10n;
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@ -977,35 +978,35 @@ class Item extends BaseObject
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* if possible and not already present.
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* Expects "body" element to exist in $arr.
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*/
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private static function addLanguageInPostopts(&$arr)
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private static function addLanguageInPostopts(&$item)
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{
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if (x($arr, 'postopts')) {
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if (strstr($arr['postopts'], 'lang=')) {
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if (!empty($item['postopts'])) {
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if (strstr($item['postopts'], 'lang=')) {
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// do not override
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return;
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}
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$postopts = $arr['postopts'];
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$postopts = $item['postopts'];
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} else {
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$postopts = "";
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}
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$naked_body = preg_replace('/\[(.+?)\]/','', $arr['body']);
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$l = new Text_LanguageDetect();
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$lng = $l->detect($naked_body, 3);
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$naked_body = Text\BBCode::toPlaintext($item['body'], false);
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if (sizeof($lng) > 0) {
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if ($postopts != "") {
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$languages = (new Text_LanguageDetect())->detect($naked_body, 3);
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if (sizeof($languages) > 0) {
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if ($postopts != '') {
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$postopts .= '&'; // arbitrary separator, to be reviewed
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}
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$postopts .= 'lang=';
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$sep = "";
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foreach ($lng as $language => $score) {
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foreach ($languages as $language => $score) {
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$postopts .= $sep . $language . ";" . $score;
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$sep = ':';
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}
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$arr['postopts'] = $postopts;
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$item['postopts'] = $postopts;
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}
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}
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176
src/Model/ItemContent.php
Normal file
176
src/Model/ItemContent.php
Normal file
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@ -0,0 +1,176 @@
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<?php
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/**
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* @file src/Model/ItemContent.php
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*/
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namespace Friendica\Model;
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use Friendica\BaseObject;
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use Friendica\Content\Text;
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use Friendica\Core\PConfig;
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require_once 'boot.php';
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require_once 'include/items.php';
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require_once 'include/text.php';
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class ItemContent extends BaseObject
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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 array $item 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 controls the behavior of the BBCode conversion
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* @param string $target_network Name of the network where the post should go to.
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*
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* @see \Friendica\Content\Text\BBCode::getAttachedData
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*
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* @return array Same array structure than \Friendica\Content\Text\BBCode::getAttachedData
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*/
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public static function getPlaintextPost($item, $limit = 0, $includedlinks = false, $htmlmode = 2, $target_network = '')
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{
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// Remove hashtags
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$URLSearchString = '^\[\]';
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$body = preg_replace("/([#@])\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", '$1$3', $item['body']);
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// Add an URL element if the text contains a raw link
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$body = preg_replace('/([^\]\=\'"]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism',
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'$1[url]$2[/url]', $body);
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// Remove the abstract
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$body = Text\BBCode::stripAbstract($body);
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// At first look at data that is attached via "type-..." stuff
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// This will hopefully replaced with a dedicated bbcode later
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//$post = self::getAttachedData($b['body']);
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$post = Text\BBCode::getAttachedData($body, $item);
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if (($item['title'] != '') && ($post['text'] != '')) {
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$post['text'] = trim($item['title'] . "\n\n" . $post['text']);
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} elseif ($item['title'] != '') {
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$post['text'] = trim($item['title']);
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}
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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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$default_abstract = Text\BBCode::getAbstract($item['body']);
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$abstract = Text\BBCode::getAbstract($item['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) && ($abstract == $default_abstract)) {
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$abstract = '';
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}
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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 = Text\BBCode::getAbstract($item['body'], NETWORK_TWITTER);
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break;
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case 7:
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$abstract = Text\BBCode::getAbstract($item['body'], NETWORK_STATUSNET);
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break;
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case 6:
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$abstract = Text\BBCode::getAbstract($item['body'], NETWORK_APPNET);
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break;
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default: // We don't know the exact target.
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// We fetch an abstract since there is a posting limit.
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if ($limit > 0) {
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$abstract = Text\BBCode::getAbstract($item['body']);
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}
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}
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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'] = $item['plink'];
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}
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}
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$html = Text\BBCode::convert($post['text'] . $post['after'], false, $htmlmode);
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$msg = Text\HTML::toPlaintext($html, 0, true);
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$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 = $post['image'];
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}
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if (($msg == '') && isset($post['title'])) {
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$msg = trim($post['title']);
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}
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if (($msg == '') && isset($post['description'])) {
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$msg = trim($post['description']);
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}
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// If the link is already contained in the post, then it neeedn't to be added again
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// But: if the link is beyond the limit, then it has to be added.
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if (($link != '') && 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) && ($pos < $limit) && (($pos + 23 > $limit) || ($pos + strlen($link) == strlen($msg)))) {
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$msg = trim(str_replace($link, '', $msg));
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} elseif (($limit == 0) || ($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) && (strlen($link) > 23) && ($htmlmode == 8)) {
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$limit = $limit - 23 + strlen($link);
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}
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$link = '';
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if ($post['type'] == 'text') {
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unset($post['url']);
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}
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}
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}
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}
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if ($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(' ', ' ', $msg);
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}
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// Twitter is using its own limiter, so we always assume that shortened links will have this length
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if (iconv_strlen($link, 'UTF-8') > 0) {
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$limit = $limit - 23;
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}
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if (iconv_strlen($msg, 'UTF-8') > $limit) {
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if (($post['type'] == 'text') && isset($post['url'])) {
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$post['url'] = $item['plink'];
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} elseif (!isset($post['url'])) {
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$limit = $limit - 23;
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$post['url'] = $item['plink'];
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} elseif (strpos($item['body'], '[share') !== false) {
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$post['url'] = $item['plink'];
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} elseif (PConfig::get($item['uid'], 'system', 'no_intelligent_shortening')) {
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$post['url'] = $item['plink'];
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}
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$msg = Text\Plaintext::shorten($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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