Rss-Bridge/bridges/RedditBridge.php

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<?php
class RedditBridge extends BridgeAbstract {
const MAINTAINER = 'dawidsowa';
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const NAME = 'Reddit Bridge';
const URI = 'https://www.reddit.com';
const DESCRIPTION = 'Return hot submissions from Reddit';
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const PARAMETERS = array(
'single' => array(
'r' => array(
'name' => 'SubReddit',
'required' => true,
'exampleValue' => 'selfhosted',
'title' => 'SubReddit name'
)
),
'multi' => array(
'rs' => array(
'name' => 'SubReddits',
'required' => true,
'exampleValue' => 'selfhosted, php',
'title' => 'SubReddit names, separated by commas'
)
)
);
public function getIcon() {
return 'https://www.redditstatic.com/desktop2x/img/favicon/favicon-96x96.png';
}
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public function getName() {
if ($this->queriedContext == 'single') {
return 'Reddit r/' . $this->getInput('r');
} else {
return self::NAME;
}
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}
public function collectData() {
switch ($this->queriedContext) {
case 'single':
$subreddits[] = $this->getInput('r');
break;
case 'multi':
$subreddits = explode(',', $this->getInput('rs'));
break;
}
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foreach ($subreddits as $subreddit) {
$name = trim($subreddit);
$values = getContents(self::URI . '/r/' . $name . '.json')
or returnServerError('Unable to fetch posts!');
$decodedValues = json_decode($values);
foreach ($decodedValues->data->children as $post) {
$data = $post->data;
$item = array();
$item['author'] = $data->author;
$item['title'] = $data->title;
$item['uid'] = $data->id;
$item['timestamp'] = $data->created_utc;
$item['uri'] = $this->encodePermalink($data->permalink);
$item['categories'] = array();
$item['categories'][] = $data->link_flair_text;
$item['categories'][] = $data->pinned ? 'Pinned' : null;
$item['categories'][] = $data->over_18 ? 'NSFW' : null;
$item['categories'][] = $data->spoiler ? 'Spoiler' : null;
$item['categories'] = array_filter($item['categories']);
if ($data->is_self) {
// Text post
$item['content']
= htmlspecialchars_decode($data->selftext_html);
} elseif (isset($data->post_hint) ? $data->post_hint == 'link' : false) {
// Link with preview
if (isset($data->media)) {
// Reddit embeds content for some sites (e.g. Twitter)
$embed = htmlspecialchars_decode(
$data->media->oembed->html
);
} else {
$embed = '';
}
$item['content'] = $this->template(
$data->url,
$data->thumbnail,
$data->domain
) . $embed;
} elseif (isset($data->post_hint) ? $data->post_hint == 'image' : false) {
// Single image
$item['content'] = $this->link(
$this->encodePermalink($data->permalink),
'<img src="' . $data->url . '" />'
);
} elseif (isset($data->is_gallery) ? $data->is_gallery : false) {
// Multiple images
$images = array();
foreach ($data->gallery_data->items as $media) {
$id = $media->media_id;
$type = $data->media_metadata->$id->m == 'image/gif' ? 'gif' : 'u';
$src = $data->media_metadata->$id->s->$type;
$images[] = '<img src="' . $src . '"/>';
}
$item['content'] = implode('', $images);
} elseif ($data->is_video) {
// Video
// Higher index -> Higher resolution
end($data->preview->images[0]->resolutions);
$index = key($data->preview->images[0]->resolutions);
$item['content'] = $this->template(
$data->url,
$data->preview->images[0]->resolutions[$index]->url,
'Video'
);
} elseif (isset($data->media) ? $data->media->type == 'youtube.com' : false) {
// Youtube link
$item['content'] = $this->template(
$data->url,
$data->media->oembed->thumbnail_url,
'YouTube');
} elseif (explode('.', $data->domain)[0] == 'self') {
// Crossposted text post
// TODO (optionally?) Fetch content of the original post.
$item['content'] = $this->link(
$this->encodePermalink($data->permalink),
'Crossposted from r/'
. explode('.', $data->domain)[1]
);
} else {
// Link WITHOUT preview
$item['content'] = $this->link($data->url, $data->domain);
}
$this->items[] = $item;
}
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}
}
private function encodePermalink($link) {
return self::URI . implode(
'/',
array_map('urlencode', explode('/', $link))
);
}
private function template($href, $src, $caption) {
return '<a href="' . $href . '"><figure><figcaption>'
. $caption . '</figcaption><img src="'
. $src . '"/></figure></a>';
}
private function link($href, $text) {
return '<a href="' . $href . '">' . $text . '</a>';
}
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}