Merge pull request #972 from MrPetovan/bug/8470-twitter-expand-entities
[twitter] Rework twitter_expand_entities
This commit is contained in:
Michael Vogel
GitHub
commit
ec335be182
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@ -1202,163 +1202,141 @@ function twitter_fetchuser(App $a, $uid, $screen_name = "", $user_id = "")
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return $contact_id;
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}
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function twitter_expand_entities(App $a, $body, $item, $picture)
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/**
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* Replaces Twitter entities with Friendica-friendly links.
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*
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* The Twitter API gives indices for each entity, which allows for fine-grained replacement.
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*
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* First, we need to collect everything that needs to be replaced, what we will replace it with, and the start index.
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* Then we sort the indices decreasingly, and we replace from the end of the body to the start in order for the next
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* index to be correct even after the last replacement.
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*
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* @param string $body
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* @param stdClass $status
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* @param string $picture
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* @return array
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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function twitter_expand_entities($body, stdClass $status, $picture)
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{
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$plain = $body;
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$tags_arr = [];
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$tags = [];
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foreach ($item->entities->hashtags AS $hashtag) {
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$url = '#[url=' . DI::baseUrl()->get() . '/search?tag=' . $hashtag->text . ']' . $hashtag->text . '[/url]';
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$tags_arr['#' . $hashtag->text] = $url;
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$body = str_replace('#' . $hashtag->text, $url, $body);
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$replacementList = [];
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foreach ($status->entities->hashtags AS $hashtag) {
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$replace = '#[url=' . DI::baseUrl()->get() . '/search?tag=' . $hashtag->text . ']' . $hashtag->text . '[/url]';
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$tags['#' . $hashtag->text] = $replace;
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$replacementList[$hashtag->indices[0]] = [
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'replace' => $replace,
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'length' => $hashtag->indices[1] - $hashtag->indices[0],
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];
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}
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foreach ($item->entities->user_mentions AS $mention) {
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$url = '@[url=https://twitter.com/' . rawurlencode($mention->screen_name) . ']' . $mention->screen_name . '[/url]';
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$tags_arr['@' . $mention->screen_name] = $url;
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$body = str_replace('@' . $mention->screen_name, $url, $body);
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foreach ($status->entities->user_mentions AS $mention) {
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$replace = '@[url=https://twitter.com/' . rawurlencode($mention->screen_name) . ']' . $mention->screen_name . '[/url]';
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$tags['@' . $mention->screen_name] = $replace;
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$replacementList[$mention->indices[0]] = [
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'replace' => $replace,
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'length' => $mention->indices[1] - $mention->indices[0],
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];
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}
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if (isset($item->entities->urls)) {
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$type = '';
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$footerurl = '';
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$footerlink = '';
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$footer = '';
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// This URL if set will be used to add an attachment at the bottom of the post
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$attachmentUrl = '';
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foreach ($item->entities->urls as $url) {
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$plain = str_replace($url->url, '', $plain);
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foreach ($status->entities->urls ?? [] as $url) {
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$plain = str_replace($url->url, '', $plain);
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if ($url->url && $url->expanded_url && $url->display_url) {
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// Quote tweet, we just remove the quoted tweet URL from the body, the share block will be added later.
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if (!empty($item->quoted_status) && isset($item->quoted_status_id_str)
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&& substr($url->expanded_url, -strlen($item->quoted_status_id_str)) == $item->quoted_status_id_str ) {
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$body = str_replace($url->url, '', $body);
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continue;
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}
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if ($url->url && $url->expanded_url && $url->display_url) {
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$expanded_url = $url->expanded_url;
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$final_url = Network::finalUrl($url->expanded_url);
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$oembed_data = OEmbed::fetchURL($final_url);
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if (empty($oembed_data) || empty($oembed_data->type)) {
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continue;
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}
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// Quickfix: Workaround for URL with '[' and ']' in it
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if (strpos($expanded_url, '[') || strpos($expanded_url, ']')) {
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$expanded_url = $url->url;
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}
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if ($type == '') {
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$type = $oembed_data->type;
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}
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if ($oembed_data->type == 'video') {
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$type = $oembed_data->type;
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$footerurl = $expanded_url;
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$footerlink = '[url=' . $expanded_url . ']' . $url->display_url . '[/url]';
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$body = str_replace($url->url, $footerlink, $body);
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} elseif (($oembed_data->type == 'photo') && isset($oembed_data->url)) {
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$body = str_replace($url->url, '[url=' . $expanded_url . '][img]' . $oembed_data->url . '[/img][/url]', $body);
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} elseif ($oembed_data->type != 'link') {
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$body = str_replace($url->url, '[url=' . $expanded_url . ']' . $url->display_url . '[/url]', $body);
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} else {
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$img_str = Network::fetchUrl($final_url, true, 4);
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$tempfile = tempnam(get_temppath(), 'cache');
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file_put_contents($tempfile, $img_str);
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// See http://php.net/manual/en/function.exif-imagetype.php#79283
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if (filesize($tempfile) > 11) {
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$mime = image_type_to_mime_type(exif_imagetype($tempfile));
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} else {
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$mime = false;
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}
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unlink($tempfile);
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if (substr($mime, 0, 6) == 'image/') {
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$type = 'photo';
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$body = str_replace($url->url, '[img]' . $final_url . '[/img]', $body);
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} else {
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$type = $oembed_data->type;
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$footerurl = $expanded_url;
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$footerlink = '[url=' . $expanded_url . ']' . $url->display_url . '[/url]';
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$body = str_replace($url->url, $footerlink, $body);
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}
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}
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}
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}
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// Footer will be taken care of with a share block in the case of a quote
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if (empty($item->quoted_status)) {
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if ($footerurl != '') {
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$footer = add_page_info($footerurl, false, $picture);
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}
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if (($footerlink != '') && (trim($footer) != '')) {
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$removedlink = trim(str_replace($footerlink, '', $body));
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if (($removedlink == '') || strstr($body, $removedlink)) {
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$body = $removedlink;
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}
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$body .= $footer;
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}
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if ($footer == '' && $picture != '') {
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$body .= "\n\n[img]" . $picture . "[/img]\n";
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} elseif ($footer == '' && $picture == '') {
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$body = add_page_info_to_body($body);
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}
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}
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}
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// it seems as if the entities aren't always covering all mentions. So the rest will be checked here
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$tags = BBCode::getTags($body);
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if (count($tags)) {
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foreach ($tags as $tag) {
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if (strstr(trim($tag), ' ')) {
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// Quote tweet, we just remove the quoted tweet URL from the body, the share block will be added later.
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if (!empty($status->quoted_status) && isset($status->quoted_status_id_str)
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&& substr($url->expanded_url, -strlen($status->quoted_status_id_str)) == $status->quoted_status_id_str
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) {
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$replacementList[$url->indices[0]] = [
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'replace' => '',
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'length' => $url->indices[1] - $url->indices[0],
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];
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continue;
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}
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if (strpos($tag, '#') === 0) {
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if (strpos($tag, '[url=')) {
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continue;
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}
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$expanded_url = $url->expanded_url;
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// don't link tags that are already embedded in links
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if (preg_match('/\[(.*?)' . preg_quote($tag, '/') . '(.*?)\]/', $body)) {
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continue;
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}
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if (preg_match('/\[(.*?)\]\((.*?)' . preg_quote($tag, '/') . '(.*?)\)/', $body)) {
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continue;
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}
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$final_url = Network::finalUrl($url->expanded_url);
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$basetag = str_replace('_', ' ', substr($tag, 1));
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$url = '#[url=' . DI::baseUrl()->get() . '/search?tag=' . $basetag . ']' . $basetag . '[/url]';
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$body = str_replace($tag, $url, $body);
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$tags_arr['#' . $basetag] = $url;
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} elseif (strpos($tag, '@') === 0) {
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if (strpos($tag, '[url=')) {
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continue;
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}
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$oembed_data = OEmbed::fetchURL($final_url);
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$basetag = substr($tag, 1);
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$url = '@[url=https://twitter.com/' . rawurlencode($basetag) . ']' . $basetag . '[/url]';
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$body = str_replace($tag, $url, $body);
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$tags_arr['@' . $basetag] = $url;
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if (empty($oembed_data) || empty($oembed_data->type)) {
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continue;
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}
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// Quickfix: Workaround for URL with '[' and ']' in it
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if (strpos($expanded_url, '[') || strpos($expanded_url, ']')) {
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$expanded_url = $url->url;
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}
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if ($oembed_data->type == 'video') {
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$attachmentUrl = $expanded_url;
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$replace = '';
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} elseif (($oembed_data->type == 'photo') && isset($oembed_data->url)) {
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$replace = '[url=' . $expanded_url . '][img]' . $oembed_data->url . '[/img][/url]';
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} elseif ($oembed_data->type != 'link') {
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$replace = '[url=' . $expanded_url . ']' . $url->display_url . '[/url]';
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} else {
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$img_str = Network::fetchUrl($final_url, true, 4);
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$tempfile = tempnam(get_temppath(), 'cache');
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file_put_contents($tempfile, $img_str);
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// See http://php.net/manual/en/function.exif-imagetype.php#79283
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if (filesize($tempfile) > 11) {
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$mime = image_type_to_mime_type(exif_imagetype($tempfile));
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} else {
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$mime = false;
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}
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unlink($tempfile);
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if (substr($mime, 0, 6) == 'image/') {
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$replace = '[img]' . $final_url . '[/img]';
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} else {
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$attachmentUrl = $expanded_url;
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$replace = '';
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}
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}
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$replacementList[$url->indices[0]] = [
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'replace' => $replace,
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'length' => $url->indices[1] - $url->indices[0],
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];
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}
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}
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$tags = implode($tags_arr, ',');
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krsort($replacementList);
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foreach ($replacementList as $startIndex => $parameters) {
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$body = Strings::substringReplace($body, $parameters['replace'], $startIndex, $parameters['length']);
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}
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// Footer will be taken care of with a share block in the case of a quote
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if (empty($status->quoted_status)) {
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$footer = '';
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if ($attachmentUrl) {
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$footer = add_page_info($attachmentUrl, false, $picture);
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}
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if (trim($footer)) {
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$body .= $footer;
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} elseif ($picture) {
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$body .= "\n\n[img]" . $picture . "[/img]\n";
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} else {
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$body = add_page_info_to_body($body);
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}
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}
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return ['body' => $body, 'tags' => $tags, 'plain' => $plain];
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}
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@ -1554,9 +1532,9 @@ function twitter_createpost(App $a, $uid, $post, array $self, $create_user, $onl
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// Search for media links
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$picture = twitter_media_entities($post, $postarray);
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$converted = twitter_expand_entities($a, $postarray['body'], $post, $picture);
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$postarray['body'] = $converted["body"];
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$postarray['tag'] = $converted["tags"];
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$converted = twitter_expand_entities($postarray['body'], $post, $picture);
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$postarray['body'] = $converted['body'];
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$postarray['tag'] = implode($converted['tags'], ',');
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$postarray['created'] = DateTimeFormat::utc($post->created_at);
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$postarray['edited'] = DateTimeFormat::utc($post->created_at);
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