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[Threads] add bridge (#3805)

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* initial working Threads bridge

* properly specify a default limit

* phpcs formatted
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Matt DeMoss 2023-11-21 11:00:02 -05:00 • committed by GitHub
parent 2b741b1c1b
commit b037d1b4d1
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bridges/ThreadsBridge.php Normal file
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<?php
class ThreadsBridge extends BridgeAbstract
{
const NAME = 'Threads';
const URI = 'https://www.threads.net/';
const DESCRIPTION = 'Say more with Threads &#x2014; Instagram&#039;s new text app.';
const MAINTAINER = 'mdemoss';
const CACHE_TIMEOUT = 3600;
const PARAMETERS = [
'By username' => [
'u' => [
'name' => 'username',
'required' => true,
'exampleValue' => 'zuck',
'title' => 'Insert a user name'
],
'limit' => [
'name' => 'Limit',
'type' => 'number',
'required' => false,
'title' => 'Specify number of posts to fetch',
'defaultValue' => 5
]
]
];
protected $feedName = self::NAME;
public function getName()
{
return $this->feedName;
}
public function detectParameters($url)
{
// By username
$regex = '/^(https?:\/\/)?(www\.)?threads\.net\/(@)?([^\/?\n]+)/';
if (preg_match($regex, $url, $matches) > 0) {
$params['context'] = 'By username';
$params['u'] = urldecode($matches[3]);
return $params;
}
return null;
}
public function getURI()
{
return self::URI . '@' . $this->getInput('u');
}
// https://stackoverflow.com/a/3975706/421140
// Found this in FlaschenpostBridge, modified to return an array and take an object.
private function recursiveFind($haystack, $needle)
{
$found = [];
$iterator = new \RecursiveArrayIterator($haystack);
$recursive = new \RecursiveIteratorIterator(
$iterator,
\RecursiveIteratorIterator::SELF_FIRST
);
foreach ($recursive as $key => $value) {
if ($key === $needle) {
$found[] = $value;
}
}
return $found;
}
public function collectData()
{
$html = getSimpleHTMLDOMCached($this->getURI(), static::CACHE_TIMEOUT);
Debug::log(sprintf('Fetched: %s', $this->getURI()));
$jsonBlobs = $html->find('script[type="application/json"]');
Debug::log(sprintf('%d JSON blobs found.', count($jsonBlobs)));
$gatheredCodes = [];
$limit = $this->getInput('limit');
foreach ($jsonBlobs as $jsonBlob) {
// The structure of the JSON document is likely to change, but we're looking for a "code" inside a "post"
foreach ($this->recursiveFind($this->recursiveFind(json_decode($jsonBlob->innertext), 'post'), 'code') as $candidateCode) {
// code should be like CzZk4-USq1O or Cy3m1VnRiwP or Cywjyrdv9T6 or CzZk4-USq1O
if (grapheme_strlen($candidateCode) == 11 and !in_array($candidateCode, $gatheredCodes)) {
$gatheredCodes[] = $candidateCode;
if (count($gatheredCodes) >= $limit) {
break 2;
}
}
}
}
Debug::log(sprintf('Candidate codes found in JSON in script tags: %s', print_r($gatheredCodes, true)));
$this->feedName = html_entity_decode($html->find('meta[property=og:title]', 0)->content);
// todo: meta[property=og:description] could populate the feed description
foreach ($gatheredCodes as $postCode) {
$item = [];
// post URL is like: https://www.threads.net/@zuck/post/Czrr520PZfh
$item['uri'] = $this->getURI() . '/post/' . $postCode;
$articleHtml = getSimpleHTMLDOMCached($item['uri'], 15778800); // cache time: six months
// Relying on meta tags ought to be more reliable.
if ($articleHtml->find('meta[property=og:type]', 0)->content != 'article') {
continue;
}
$item['title'] = $articleHtml->find('meta[property=og:description]', 0)->content;
$item['content'] = $articleHtml->find('meta[property=og:description]', 0)->content;
$item['author'] = html_entity_decode($articleHtml->find('meta[property=og:title]', 0)->content);
$imageUrl = $articleHtml->find('meta[property=og:image]', 0);
if ($imageUrl) {
$item['enclosures'][] = html_entity_decode($imageUrl->content);
}
// todo: parse hashtags out of content for $item['categories']
// todo: try to scrape out a timestamp for $item['timestamp'], it's not in the meta tags
$this->items[] = $item;
}
}
}