545 lines
21 KiB
PHP
545 lines
21 KiB
PHP
<?php
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class VkBridge extends BridgeAbstract
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{
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const MAINTAINER = 'em92';
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// const MAINTAINER = 'pmaziere';
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// const MAINTAINER = 'ahiles3005';
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const NAME = 'VK.com';
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const URI = 'https://vk.com/';
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const CACHE_TIMEOUT = 300; // 5min
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const DESCRIPTION = 'Working with open pages';
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const PARAMETERS = [
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[
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'u' => [
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'name' => 'Group or user name',
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'exampleValue' => 'elonmusk_tech',
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'required' => true
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],
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'hide_reposts' => [
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'name' => 'Hide reposts',
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'type' => 'checkbox',
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]
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]
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];
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const TEST_DETECT_PARAMETERS = [
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'https://vk.com/id1' => ['u' => 'id1'],
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'https://vk.com/groupname' => ['u' => 'groupname'],
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'https://m.vk.com/groupname' => ['u' => 'groupname'],
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'https://vk.com/groupname/anythingelse' => ['u' => 'groupname'],
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'https://vk.com/groupname?w=somethingelse' => ['u' => 'groupname'],
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'https://vk.com/with_underscore' => ['u' => 'with_underscore'],
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'https://vk.com/vk.cats' => ['u' => 'vk.cats'],
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];
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protected $pageName;
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protected $tz = 0;
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private $urlRegex = '/vk\.com\/([\w.]+)/';
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public function getURI()
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{
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if (!is_null($this->getInput('u'))) {
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return static::URI . urlencode($this->getInput('u'));
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}
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return parent::getURI();
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}
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public function getName()
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{
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if ($this->pageName) {
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return $this->pageName;
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}
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return parent::getName();
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}
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public function detectParameters($url)
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{
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if (preg_match($this->urlRegex, $url, $matches)) {
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return ['u' => $matches[1]];
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}
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return null;
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}
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public function collectData()
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{
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$text_html = $this->getContents();
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$text_html = iconv('windows-1251', 'utf-8//ignore', $text_html);
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$html = str_get_html($text_html);
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foreach ($html->find('script') as $script) {
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preg_match('/tz: ([0-9]+)/', $script->outertext, $matches);
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if (count($matches) > 0) {
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$this->tz = intval($matches[1]);
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break;
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}
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}
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$pageName = $html->find('meta[property="og:title"]', 0);
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if (is_object($pageName)) {
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$pageName = $pageName->getAttribute('content');
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$this->pageName = $pageName;
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}
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foreach ($html->find('div.replies') as $comment_block) {
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$comment_block->outertext = '';
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}
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// expensive operation
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$save = $html->save();
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$html->load($save);
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$pinned_post_item = null;
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$last_post_id = 0;
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foreach ($html->find('.post') as $post) {
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if ($post->find('.wall_post_text_deleted')) {
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// repost of deleted post
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continue;
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}
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defaultLinkTo($post, self::URI);
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$is_pinned_post = false;
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if (strpos($post->getAttribute('class'), 'post_fixed') !== false) {
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$is_pinned_post = true;
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}
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// Remove 'Show more' button
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foreach ($post->find('button.PostTextMore') as $junk) {
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$junk->outertext = '';
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}
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$content_suffix = '';
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// looking for external links
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$external_link_selectors = [
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'a.page_media_link_title',
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'div.page_media_link_title > a',
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'div.media_desc > a.lnk',
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];
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foreach ($external_link_selectors as $sel) {
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if (is_object($post->find($sel, 0))) {
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$a = $post->find($sel, 0);
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$innertext = $a->innertext;
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$parsed_url = parse_url($a->getAttribute('href'));
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if (strpos($parsed_url['path'], '/away.php') !== 0) {
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continue;
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}
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parse_str($parsed_url['query'], $parsed_query);
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$content_suffix .= "<br>External link: <a href='" . $parsed_query['to'] . "'>$innertext</a>";
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}
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}
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// remove external link from content
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$external_link_selectors_to_remove = [
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'div.page_media_thumbed_link',
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'div.page_media_link_desc_wrap',
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'div.media_desc > a.lnk',
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];
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foreach ($external_link_selectors_to_remove as $sel) {
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if (is_object($post->find($sel, 0))) {
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$post->find($sel, 0)->outertext = '';
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}
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}
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// looking for article
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$article = $post->find('a.article_snippet', 0);
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if (is_object($article)) {
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if (strpos($article->getAttribute('class'), 'article_snippet_mini') !== false) {
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$article_title_selector = 'div.article_snippet_mini_title';
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$article_author_selector = 'div.article_snippet_mini_info > .mem_link,
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div.article_snippet_mini_info > .group_link';
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$article_thumb_selector = 'div.article_snippet_mini_thumb';
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} else {
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$article_title_selector = 'div.article_snippet__title';
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$article_author_selector = 'div.article_snippet__author';
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$article_thumb_selector = 'div.article_snippet__image';
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}
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$article_title = $article->find($article_title_selector, 0)->innertext ?? '';
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$article_author = $article->find($article_author_selector, 0)->innertext ?? '';
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$article_link = $article->getAttribute('href');
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$article_img_element_style = $article->find($article_thumb_selector, 0)->getAttribute('style');
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preg_match('/background-image: url\((.*)\)/', $article_img_element_style, $matches);
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if (count($matches) > 0) {
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$content_suffix .= "<br><img src='" . $matches[1] . "'>";
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}
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$content_suffix .= "<br>Article: <a href='$article_link'>$article_title ($article_author)</a>";
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$article->outertext = '';
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}
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// get all videos
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foreach ($post->find('a.page_post_thumb_video') as $a) {
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$video_title = htmlspecialchars_decode($a->getAttribute('aria-label'));
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$video_title_split_pos = strrpos($video_title, ' is ');
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if ($video_title_split_pos !== false) {
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$video_title = substr($video_title, 0, $video_title_split_pos);
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}
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$video_link = $a->getAttribute('href');
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$this->appendVideo($video_title, $video_link, backgroundToImg($a), $content_suffix);
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$a->outertext = '';
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}
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// get all photos
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foreach ($post->find('div.wall_text a.page_post_thumb_wrap') as $a) {
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$result = $this->getPhoto($a);
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if ($result == null) {
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continue;
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}
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$a->outertext = '';
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$content_suffix .= "<br>$result";
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}
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// get albums
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foreach ($post->find('.page_album_wrap') as $el) {
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$a = $el->find('.page_album_link', 0);
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$album_title = $a->find('.page_album_title_text', 0)->getAttribute('title');
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$album_link = $a->getAttribute('href');
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$el->outertext = '';
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$content_suffix .= "<br>Album: <a href='$album_link'>$album_title</a>";
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}
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// get photo documents
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foreach ($post->find('a.page_doc_photo_href') as $a) {
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$doc_link = $a->getAttribute('href');
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$doc_gif_label_element = $a->find('.page_gif_label', 0);
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$doc_title_element = $a->find('.doc_label', 0);
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if (is_object($doc_gif_label_element)) {
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$gif_preview_img = backgroundToImg($a->find('.page_doc_photo', 0));
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$content_suffix .= "<br>Gif: <a href='$doc_link'>$gif_preview_img</a>";
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} elseif (is_object($doc_title_element)) {
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$doc_title = $doc_title_element->innertext;
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$content_suffix .= "<br>Doc: <a href='$doc_link'>$doc_title</a>";
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} else {
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continue;
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}
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$a->outertext = '';
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}
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// get other documents
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foreach ($post->find('div.page_doc_row') as $div) {
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$doc_title_element = $div->find('a.page_doc_title', 0);
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if (is_object($doc_title_element)) {
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$doc_title = $doc_title_element->innertext;
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$doc_link = $doc_title_element->getAttribute('href');
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$content_suffix .= "<br>Doc: <a href='$doc_link'>$doc_title</a>";
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} else {
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continue;
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}
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$div->outertext = '';
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}
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// get polls
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foreach ($post->find('div.page_media_poll_wrap') as $div) {
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$poll_title = $div->find('.page_media_poll_title', 0)->innertext;
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$content_suffix .= "<br>Poll: $poll_title";
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foreach ($div->find('div.page_poll_text') as $poll_stat_title) {
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$content_suffix .= '<br>- ' . $poll_stat_title->innertext;
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}
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$div->outertext = '';
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}
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// get sign / post author
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$post_author = $pageName;
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$author_selectors = ['a.wall_signed_by', 'a.author'];
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foreach ($author_selectors as $author_selector) {
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$a = $post->find($author_selector, 0);
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if (is_object($a)) {
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$post_author = $a->innertext;
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$a->outertext = '';
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break;
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}
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}
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// fix links and get post hashtags
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$hashtags = [];
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foreach ($post->find('a') as $a) {
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$href = $a->getAttribute('href');
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$innertext = $a->innertext;
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$hashtag_prefix = '/feed?section=search&q=%23';
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$hashtag = null;
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if ($href && substr($href, 0, strlen($hashtag_prefix)) === $hashtag_prefix) {
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$hashtag = urldecode(substr($href, strlen($hashtag_prefix)));
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} elseif (substr($innertext, 0, 1) == '#') {
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$hashtag = $innertext;
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}
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if ($hashtag) {
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$a->outertext = $innertext;
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$hashtags[] = $hashtag;
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continue;
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}
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$parsed_url = parse_url($href);
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if (array_key_exists('path', $parsed_url) === false) {
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continue;
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}
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if (strpos($parsed_url['path'], '/away.php') === 0) {
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parse_str($parsed_url['query'], $parsed_query);
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$a->setAttribute('href', iconv(
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'windows-1251',
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'utf-8//ignore',
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$parsed_query['to']
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));
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}
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}
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$copy_quote = $post->find('div.copy_quote', 0);
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if (is_object($copy_quote)) {
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if ($this->getInput('hide_reposts') === true) {
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continue;
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}
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if ($copy_post_header = $copy_quote->find('div.copy_post_header', 0)) {
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$copy_post_header->outertext = '';
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}
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$second_copy_quote = $copy_quote->find('div.published_sec_quote', 0);
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if (is_object($second_copy_quote)) {
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$second_copy_quote_author = $second_copy_quote->find('a.copy_author', 0)->outertext;
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$second_copy_quote_content = $second_copy_quote->find('div.copy_post_date', 0)->outertext;
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$second_copy_quote->outertext = "<br>Reposted ($second_copy_quote_author): $second_copy_quote_content";
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}
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$copy_quote_author = $copy_quote->find('a.copy_author', 0)->outertext;
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$copy_quote_content = $copy_quote->innertext;
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$copy_quote->outertext = "<br>Reposted ($copy_quote_author): <br>$copy_quote_content";
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}
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foreach ($post->find('.PrimaryAttachment .PhotoPrimaryAttachment') as $pa) {
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$img = $pa->find('.PhotoPrimaryAttachment__imageElement', 0);
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if (is_object($img)) {
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$pa->outertext = $img->outertext;
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}
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}
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foreach ($post->find('.SecondaryAttachment') as $sa) {
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$sa_href = $sa->getAttribute('href');
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if (!$sa_href) {
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$sa_href = '';
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}
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$sa_task_click = $sa->getAttribute('data-task-click');
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if (str_starts_with($sa_href, 'https://vk.com/doc')) {
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// document
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$doc_title = $sa->find('.SecondaryAttachment__childrenText', 0)->innertext;
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$doc_size = $sa->find('.SecondaryAttachmentSubhead', 0)->innertext;
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$doc_link = $sa_href;
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$content_suffix .= "<br>Doc: <a href='$doc_link'>$doc_title</a> ($doc_size)";
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$sa->outertext = '';
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} else if (str_starts_with($sa_href, 'https://vk.com/@')) {
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// article
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$article_title = $sa->find('.SecondaryAttachment__childrenText', 0)->innertext;
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$article_author = explode('Article · from ', $sa->find('.SecondaryAttachmentSubhead', 0)->innertext)[1];
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$article_link = $sa_href;
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$content_suffix .= "<br>Article: <a href='$article_link'>$article_title ($article_author)</a>";
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$sa->outertext = '';
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} else if ($sa_task_click == 'SecondaryAttachment/playAudio') {
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// audio
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$audio_json = json_decode(html_entity_decode($sa->getAttribute('data-audio')));
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$audio_link = $audio_json->url;
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$audio_title = $sa->find('.SecondaryAttachment__childrenText', 0)->innertext;
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$audio_author = $sa->find('.SecondaryAttachmentSubhead', 0)->innertext;
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$content_suffix .= "<br>Audio: <a href='$audio_link'>$audio_title ($audio_author)</a>";
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$sa->outertext = '';
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} else if ($sa_task_click == 'SecondaryAttachment/playPlaylist') {
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// playlist link
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$playlist_title = $sa->find('.SecondaryAttachment__childrenText', 0)->innertext;
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$playlist_link = $sa->find('.SecondaryAttachment__link', 0)->getAttribute('href');
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$content_suffix .= "<br>Playlist: <a href='$playlist_link'>$playlist_title</a>";
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$sa->outertext = '';
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}
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}
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$item = [];
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$content = strip_tags(backgroundToImg($post->find('div.wall_text', 0)->innertext), '<a><br><img>');
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$content .= $content_suffix;
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if (!$content) {
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$content = '(empty post)';
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}
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$content = str_get_html($content);
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foreach ($content->find('img') as $img) {
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$parsed_src = parse_url($img->getAttribute('src'));
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// unblur images (case of impf)
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// get original images instead of thumbnails (case of impg)
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$imgPrefix = array_reduce(['/impf/', '/impg/'], function ($a, $c) use ($parsed_src) {
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if ($a) {
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return $a;
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}
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if (str_starts_with($parsed_src['path'], $c)) {
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return $c;
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}
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return $a;
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}, '');
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if ($imgPrefix) {
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$new_src = $parsed_src['scheme'] . '://' . $parsed_src['host'];
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$new_src .= substr($parsed_src['path'], strlen($imgPrefix) - 1);
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$img->setAttribute('src', $new_src);
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}
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}
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$item['content'] = $content->outertext;
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$item['categories'] = $hashtags;
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// get post link
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$post_link = $post->find('a.PostHeaderSubtitle__link', 0)->getAttribute('href');
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preg_match('/wall-?\d+_(\d+)/', $post_link, $preg_match_result);
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$item['post_id'] = intval($preg_match_result[1]);
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$item['uri'] = $post_link;
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$item['timestamp'] = $this->getTime($post);
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$item['title'] = $this->getTitle($item['content']);
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$item['author'] = $post_author;
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if ($is_pinned_post) {
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// do not append it now
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$pinned_post_item = $item;
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} else {
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$last_post_id = $item['post_id'];
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$this->items[] = $item;
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}
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}
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if (!is_null($pinned_post_item)) {
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if (count($this->items) == 0) {
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$this->items[] = $pinned_post_item;
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} elseif ($last_post_id < $pinned_post_item['post_id']) {
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$this->items[] = $pinned_post_item;
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usort($this->items, function ($item1, $item2) {
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return $item2['post_id'] - $item1['post_id'];
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});
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}
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}
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}
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private function getPhoto($a)
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{
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$onclick = $a->getAttribute('onclick');
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preg_match('/return showPhoto\(.+?({.*})/', $onclick, $preg_match_result);
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if (count($preg_match_result) == 0) {
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return;
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}
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$arg = htmlspecialchars_decode(str_replace('queue:1', '"queue":1', $preg_match_result[1]));
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$data = json_decode($arg, true);
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if ($data == null) {
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return;
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}
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$thumb = $data['temp']['base'] . $data['temp']['x_'][0];
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$original = '';
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foreach (['y_', 'z_', 'w_'] as $key) {
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if (!isset($data['temp'][$key])) {
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continue;
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}
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if (!isset($data['temp'][$key][0])) {
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continue;
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}
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if (substr($data['temp'][$key][0], 0, 4) == 'http') {
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$base = '';
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} else {
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$base = $data['temp']['base'];
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}
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$original = $base . $data['temp'][$key][0];
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}
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if ($original) {
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return "<a href='$original'><img src='$thumb'></a>";
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} else {
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return backgroundToImg($a);
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}
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}
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private function getTitle($content)
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{
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$content = explode('<br>', $content)[0];
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$content = strip_tags($content);
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preg_match('/^[:\,"\w\ \p{L}\(\)\?#«»\-\–\—||&\.%\\₽\/+\;\!]+/mu', htmlspecialchars_decode($content), $result);
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if (count($result) == 0) {
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return 'untitled';
|
||
}
|
||
return $result[0];
|
||
}
|
||
|
||
private function getTime($post)
|
||
{
|
||
$accurateDateElement = $post->find('span.rel_date', 0);
|
||
if ($accurateDateElement) {
|
||
return $accurateDateElement->getAttribute('time');
|
||
} else {
|
||
$strdate = $post->find('time.PostHeaderSubtitle__item', 0)->plaintext;
|
||
$strdate = preg_replace('/[\x00-\x1F\x7F-\xFF]/', ' ', $strdate);
|
||
|
||
$date = date_parse($strdate);
|
||
if (!$date['year']) {
|
||
if (strstr($strdate, 'today') !== false) {
|
||
$strdate = date('d-m-Y') . ' ' . $strdate;
|
||
} elseif (strstr($strdate, 'yesterday ') !== false) {
|
||
$time = time() - 60 * 60 * 24;
|
||
$strdate = date('d-m-Y', $time) . ' ' . $strdate;
|
||
} elseif ($date['month'] && intval(date('m')) < $date['month']) {
|
||
$strdate = $strdate . ' ' . (date('Y') - 1);
|
||
} else {
|
||
$strdate = $strdate . ' ' . date('Y');
|
||
}
|
||
|
||
$date = date_parse($strdate);
|
||
} elseif ($date['hour'] === false) {
|
||
$date['hour'] = $date['minute'] = '00';
|
||
}
|
||
return strtotime($date['day'] . '-' . $date['month'] . '-' . $date['year'] . ' ' .
|
||
$date['hour'] . ':' . $date['minute']) - $this->tz;
|
||
}
|
||
}
|
||
|
||
private function getContents()
|
||
{
|
||
$httpHeaders = [
|
||
'Accept-language: en',
|
||
'Cookie: remixlang=3',
|
||
];
|
||
$redirects = 0;
|
||
$uri = $this->getURI();
|
||
|
||
while ($redirects < 2) {
|
||
$response = getContents($uri, $httpHeaders, [CURLOPT_FOLLOWLOCATION => false], true);
|
||
|
||
if (in_array($response['code'], [200, 304])) {
|
||
return $response['content'];
|
||
}
|
||
|
||
$headers = $response['headers'];
|
||
$uri = urljoin(self::URI, $headers['location'][0]);
|
||
|
||
if (str_contains($uri, '/429.html')) {
|
||
returnServerError('VK responded "Too many requests"');
|
||
}
|
||
|
||
if (!preg_match('#^https?://vk.com/#', $uri)) {
|
||
returnServerError('Unexpected redirect location: ' . $uri);
|
||
}
|
||
|
||
$redirects++;
|
||
}
|
||
|
||
returnServerError('Too many redirects, while retreving content from VK');
|
||
}
|
||
|
||
protected function appendVideo($video_title, $video_link, $previewImg, &$content_suffix)
|
||
{
|
||
if (!$video_title) {
|
||
$video_title = '(empty)';
|
||
}
|
||
|
||
$content_suffix .= '<br><a href="' . htmlspecialchars($video_link) . '">' . $previewImg;
|
||
$content_suffix .= 'Video: ' . $video_title . '</a>';
|
||
}
|
||
}
|