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[AnthropicBridge] Add Anthropic Bridge (#4398)

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* [AnthropicBridge] Add Anthropic Bridge

* [AnthropicBridge] Fix lint
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Pavel Korytov 2025-01-06 21:10:12 +03:00 • committed by GitHub
parent e355276378
commit 0e2655fc8a
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1 changed files with 147 additions and 0 deletions
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bridges/AnthropicBridge.php Normal file
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<?php
class AnthropicBridge extends BridgeAbstract
{
const MAINTAINER = 'sqrtminusone';
const NAME = 'Anthropic Research Bridge';
const URI = 'https://www.anthropic.com';
const CACHE_TIMEOUT = 3600; // 1 hour
const DESCRIPTION = 'Returns research publications from Anthropic';
const PARAMETERS = [
'' => [
'limit' => [
'name' => 'Limit',
'type' => 'number',
'required' => true,
'defaultValue' => 10
],
]
];
public function collectData()
{
// Anthropic sometimes returns 500 for no reason. The contents are still there.
$html = $this->getHTMLIgnoreError(self::URI . '/research');
$limit = $this->getInput('limit');
$page_data = $this->extractPageData($html);
$pages = $this->parsePageData($page_data);
for ($i = 0; $i < min(count($pages), $limit); $i++) {
$page = $pages[$i];
$page['content'] = $this->parsePage($page['uri']);
$this->items[] = $page;
}
}
private function getHTMLIgnoreError($url, $ttl = null)
{
if ($ttl != null) {
$cacheKey = 'pages_' . $url;
$content = $this->cache->get($cacheKey);
if ($content) {
return str_get_html($content);
}
}
try {
$content = getContents($url);
} catch (HttpException $e) {
$content = $e->response->getBody();
}
if ($ttl != null) {
$this->cache->set($cacheKey, $content, $ttl);
}
return str_get_html($content);
}
private function extractPageData($html)
{
foreach ($html->find('script') as $script) {
$js_code = $script->innertext;
if (!str_starts_with($js_code, 'self.__next_f.push(')) {
continue;
}
$push_data = (string)json_decode(mb_substr($js_code, 22, mb_strlen($js_code) - 2 - 22));
$square_bracket = mb_strpos($push_data, '[');
$push_array = json_decode(mb_substr($push_data, $square_bracket), true);
if ($push_array == null || count($push_array) < 4) {
continue;
}
$page_data = $push_array[3];
if ($page_data != null && array_key_exists('page', $page_data)) {
return $page_data;
}
}
}
private function parsePageData($page_data)
{
$result = [];
foreach ($page_data['page']['sections'] as $section) {
if (
!array_key_exists('internalName', $section) ||
$section['internalName'] != 'Research Teams'
) {
continue;
}
foreach ($section['tabPages'] as $tabPage) {
if ($tabPage['label'] != 'Overview') {
continue;
}
foreach ($tabPage['sections'] as $section1) {
if (
!array_key_exists('title', $section1)
|| $section1['title'] != 'Publications'
) {
continue;
}
foreach ($section1['posts'] as $post) {
$enc = [];
if ($post['cta'] != null && array_key_exists('url', $post['cta'])) {
$enc = [$post['cta']['url']];
}
$result[] = [
'title' => $post['title'],
'timestamp' => $post['publishedOn'],
'uri' => self::URI . '/research/' . $post['slug']['current'],
'categories' => array_map(
fn($s) => $s['label'],
$post['subjects'],
),
'enclosures' => $enc,
];
}
break;
}
break;
}
break;
}
return $result;
}
private function parsePage($url)
{
// Again, 500 for no reason.
$html = $this->getHTMLIgnoreError($url, 7 * 24 * 60 * 60);
$content = '';
// Main content
$main = $html->find('div[class*="PostDetail_post-detail"] > article', 0);
// Mostly YouTube videos
$iframes = $main->find('iframe');
foreach ($iframes as $iframe) {
$iframe->parent->removeAttribute('style');
$iframe->outertext = '<a href="' . $iframe->src . '">' . $iframe->src . '</a>';
}
$main = convertLazyLoading($main);
$main = defaultLinkTo($main, self::URI);
$content .= $main;
return $content;
}
}