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[Bluesky] New bridge (#4341)
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* Create BlueskyProfileBridge.php

Bridge for Bluesky

* Update BlueskyProfileBridge.php

Attempt to fix test error

* Rename BlueskyProfileBridge.php to BlueskyBridge.php and add list of select data source

* Update BlueskyBridge.php to pass lint checks
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@thomas-333
thomas-333 authored Nov 25, 2024
1 parent ec6f98e commit b42a993
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230 changes: 230 additions & 0 deletions bridges/BlueskyBridge.php
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<?php

class BlueskyBridge extends BridgeAbstract
{
const NAME = 'Bluesky';
const URI = 'https://bsky.app';
const DESCRIPTION = 'Fetches posts from Bluesky';
const MAINTAINER = 'Code modified from rsshub (TonyRL https://github.com/TonyRL) and expanded';
const PARAMETERS = [
[
'data_source' => [
'name' => 'Bluesky Data Source',
'type' => 'list',
'defaultValue' => 'Profile',
'values' => [
'Profile' => 'getAuthorFeed',
],
'title' => 'Select the type of data source to fetch from Bluesky.'
],
'handle' => [
'name' => 'User Handle',
'type' => 'text',
'required' => true,
'exampleValue' => 'jackdodo.bsky.social',
'title' => 'Handle found in URL'
],
'filter' => [
'name' => 'Filter',
'type' => 'list',
'defaultValue' => 'posts_and_author_threads',
'values' => [
'posts_and_author_threads' => 'posts_and_author_threads',
'posts_with_replies' => 'posts_with_replies',
'posts_no_replies' => 'posts_no_replies',
'posts_with_media' => 'posts_with_media',
],
'title' => 'Combinations of post/repost types to include in response.'
]
]
];

private $profile;

public function getName()
{
if (isset($this->profile)) {
return sprintf('%s (@%s) - Bluesky', $this->profile['displayName'], $this->profile['handle']);
}
return parent::getName();
}

public function getURI()
{
if (isset($this->profile)) {
return self::URI . '/profile/' . $this->profile['handle'];
}
return parent::getURI();
}

public function getIcon()
{
if (isset($this->profile)) {
return $this->profile['avatar'];
}
return parent::getIcon();
}

public function getDescription()
{
if (isset($this->profile)) {
return $this->profile['description'];
}
return parent::getDescription();
}

private function parseExternal($external, $did)
{
$description = '';
$externalUri = $external['uri'];
$externalTitle = htmlspecialchars($external['title'], ENT_QUOTES, 'UTF-8');
$externalDescription = htmlspecialchars($external['description'], ENT_QUOTES, 'UTF-8');
$thumb = $external['thumb'] ?? null;

if (preg_match('/youtube\.com\/watch\?v=([^\&\?\/]+)/', $externalUri, $id) || preg_match('/youtu\.be\/([^\&\?\/]+)/', $externalUri, $id)) {
$videoId = $id[1];
$description .= "<p>External Link: <a href=\"$externalUri\">$externalTitle</a></p>";
$description .= "<iframe width=\"560\" height=\"315\" src=\"https://www.youtube.com/embed/$videoId\" frameborder=\"0\" allowfullscreen></iframe>";
} else {
$description .= "<p>External Link: <a href=\"$externalUri\">$externalTitle</a></p>";
$description .= "<p>$externalDescription</p>";

if ($thumb) {
$thumbUrl = 'https://cdn.bsky.app/img/feed_thumbnail/plain/' . $did . '/' . $thumb['ref']['$link'] . '@jpeg';
$description .= "<p><a href=\"$externalUri\"><img src=\"$thumbUrl\" alt=\"External Thumbnail\" /></a></p>";
}
}
return $description;
}

private function textToDescription($text)
{
$text = nl2br(htmlspecialchars($text, ENT_QUOTES, 'UTF-8'));
$text = preg_replace('/(https?:\/\/[^\s]+)/i', '<a href="$1">$1</a>', $text);

return $text;
}

public function collectData()
{
$handle = $this->getInput('handle');
$filter = $this->getInput('filter') ?: 'posts_and_author_threads';

$did = $this->resolveHandle($handle);
$this->profile = $this->getProfile($did);
$authorFeed = $this->getAuthorFeed($did, $filter);

foreach ($authorFeed['feed'] as $post) {
$item = [];
$item['uri'] = self::URI . '/profile/' . $post['post']['author']['handle'] . '/post/' . explode('app.bsky.feed.post/', $post['post']['uri'])[1];
$item['title'] = strtok($post['post']['record']['text'], "\n");
$item['timestamp'] = strtotime($post['post']['record']['createdAt']);
$item['author'] = $this->profile['displayName'];

$description = $this->textToDescription($post['post']['record']['text']);

// Retrieve DID for constructing image URLs
$authorDid = $post['post']['author']['did'];

if (isset($post['post']['record']['embed']['$type']) && $post['post']['record']['embed']['$type'] === 'app.bsky.embed.external') {
$description .= $this->parseExternal($post['post']['record']['embed']['external'], $authorDid);
}

if (isset($post['post']['record']['embed']['$type']) && $post['post']['record']['embed']['$type'] === 'app.bsky.embed.video') {
$thumbnail = $post['post']['embed']['thumbnail'] ?? null;
if ($thumbnail) {
$itemUri = self::URI . '/profile/' . $post['post']['author']['handle'] . '/post/' . explode('app.bsky.feed.post/', $post['post']['uri'])[1];
$description .= "<p><a href=\"$itemUri\"><img src=\"$thumbnail\" alt=\"Video Thumbnail\" /></a></p>";
}
}

if (isset($post['post']['record']['embed']['$type']) && $post['post']['record']['embed']['$type'] === 'app.bsky.embed.recordWithMedia#view') {
$thumbnail = $post['post']['embed']['media']['thumbnail'] ?? null;
$playlist = $post['post']['embed']['media']['playlist'] ?? null;
if ($thumbnail) {
$description .= "<p><video controls poster=\"$thumbnail\">";
$description .= "<source src=\"$playlist\" type=\"application/x-mpegURL\">";
$description .= 'Video source not supported</video></p>';
}
}

if (!empty($post['post']['record']['embed']['images'])) {
foreach ($post['post']['record']['embed']['images'] as $image) {
$linkRef = $image['image']['ref']['$link'];
$thumbnailUrl = $this->resolveThumbnailUrl($authorDid, $linkRef);
$fullsizeUrl = $this->resolveFullsizeUrl($authorDid, $linkRef);
$description .= "<br /><br /><a href=\"$fullsizeUrl\"><img src=\"$thumbnailUrl\" alt=\"Image\"></a>";
}
}

// Enhanced handling for quote posts with images
if (isset($post['post']['record']['embed']) && $post['post']['record']['embed']['$type'] === 'app.bsky.embed.record') {
$quotedRecord = $post['post']['record']['embed']['record'];
$quotedAuthor = $post['post']['embed']['record']['author']['handle'] ?? null;
$quotedDisplayName = $post['post']['embed']['record']['author']['displayName'] ?? null;
$quotedText = $post['post']['embed']['record']['value']['text'] ?? null;

if ($quotedAuthor && isset($quotedRecord['uri'])) {
$parts = explode('/', $quotedRecord['uri']);
$quotedPostId = end($parts);
$quotedPostUri = self::URI . '/profile/' . $quotedAuthor . '/post/' . $quotedPostId;
}

if ($quotedText) {
$description .= '<hr /><strong>Quote from ' . htmlspecialchars($quotedDisplayName) . ' (@ ' . htmlspecialchars($quotedAuthor) . '):</strong><br />';
$description .= $this->textToDescription($quotedText);
if (isset($quotedPostUri)) {
$description .= "<p><a href=\"$quotedPostUri\">View original quote post</a></p>";
}
}
}

if (isset($post['post']['embed']['record']['value']['embed']['images'])) {
$quotedImages = $post['post']['embed']['record']['value']['embed']['images'];
foreach ($quotedImages as $image) {
$linkRef = $image['image']['ref']['$link'] ?? null;
if ($linkRef) {
$quotedAuthorDid = $post['post']['embed']['record']['author']['did'] ?? null;
$thumbnailUrl = $this->resolveThumbnailUrl($quotedAuthorDid, $linkRef);
$fullsizeUrl = $this->resolveFullsizeUrl($quotedAuthorDid, $linkRef);
$description .= "<br /><br /><a href=\"$fullsizeUrl\"><img src=\"$thumbnailUrl\" alt=\"Quoted Image\"></a>";
}
}
}

$item['content'] = $description;
$this->items[] = $item;
}
}

private function resolveHandle($handle)
{
$uri = 'https://public.api.bsky.app/xrpc/com.atproto.identity.resolveHandle?handle=' . urlencode($handle);
$response = json_decode(getContents($uri), true);
return $response['did'];
}

private function getProfile($did)
{
$uri = 'https://public.api.bsky.app/xrpc/app.bsky.actor.getProfile?actor=' . urlencode($did);
$response = json_decode(getContents($uri), true);
return $response;
}

private function getAuthorFeed($did, $filter)
{
$uri = 'https://public.api.bsky.app/xrpc/app.bsky.feed.getAuthorFeed?actor=' . urlencode($did) . '&filter=' . urlencode($filter) . '&limit=30';
$response = json_decode(getContents($uri), true);
return $response;
}

private function resolveThumbnailUrl($authorDid, $linkRef)
{
return 'https://cdn.bsky.app/img/feed_thumbnail/plain/' . $authorDid . '/' . $linkRef . '@jpeg';
}

private function resolveFullsizeUrl($authorDid, $linkRef)
{
return 'https://cdn.bsky.app/img/feed_fullsize/plain/' . $authorDid . '/' . $linkRef . '@jpeg';
}
}

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