[DerpibooruBridge] Add new bridge (RSS-Bridge#949)

New bridge for the derpibooru.org image board.

bridges/DerpibooruBridge.php

@@ -0,0 +1,113 @@
+<?php
+class DerpibooruBridge extends BridgeAbstract {
+	const NAME = 'Derpibooru Bridge';
+	const URI = 'https://derpibooru.org/';
+	const DESCRIPTION = 'Returns newest posts from a Derpibooru search';
+	const CACHE_TIMEOUT = 300; // 5min
+	const MAINTAINER = 'Roliga';
+
+	const PARAMETERS = array(
+		array(
+			'f' => array(
+				'name' => 'Filter',
+				'type' => 'list',
+				'values' => array(
+					'Everything' => 56027,
+					'18+ R34' => 37432,
+					'Legacy Default' => 37431,
+					'18+ Dark' => 37429,
+					'Maximum Spoilers' => 37430,
+					'Default' => 100073
+				),
+				'defaultValue' => 56027
+
+			),
+			'q' => array(
+				'name' => 'Query',
+				'required' => true
+			)
+		)
+	);
+
+	public function detectParameters($url){
+		$params = array();
+
+		// Search page e.g. https://derpibooru.org/search?q=cute
+		$regex = '/^(https?:\/\/)?(www\.)?derpibooru.org\/search.+q=([^\/&?\n]+)/';
+		if(preg_match($regex, $url, $matches) > 0) {
+			$params['q'] = urldecode($matches[3]);
+			return $params;
+		}
+
+		// Tag page, e.g. https://derpibooru.org/tags/artist-colon-devinian
+		$regex = '/^(https?:\/\/)?(www\.)?derpibooru.org\/tags\/([^\/&?\n]+)/';
+		if(preg_match($regex, $url, $matches) > 0) {
+			$params['q'] = str_replace('-colon-', ':', urldecode($matches[3]));
+			return $params;
+		}
+
+		return null;
+	}
+
+	public function getName(){
+		if(!is_null($this->getInput('q'))) {
+			return 'Derpibooru search for: '
+				. $this->getInput('q');
+		} else {
+			return parent::getName();
+		}
+	}
+
+	public function getURI(){
+		if(!is_null($this->getInput('f')) && !is_null($this->getInput('q'))) {
+		return self::URI
+			. 'search?filter_id='
+			. urlencode($this->getInput('f'))
+			. '&q='
+			. urlencode($this->getInput('q'));
+		} else {
+			return parent::getURI();
+		}
+	}
+
+	public function collectData(){
+		$queryJson = json_decode(getContents(
+			self::URI
+			. 'search.json?filter_id='
+			. urlencode($this->getInput('f'))
+			. '&q='
+			. urlencode($this->getInput('q'))
+		)) or returnServerError('Failed to query Derpibooru');
+
+		foreach($queryJson->search as $post) {
+			$item = array();
+
+			$postUri = self::URI . $post->id;
+
+			$item['uri'] = $postUri;
+			$item['title'] = $post->id;
+			$item['timestamp'] = strtotime($post->created_at);
+			$item['author'] = $post->uploader;
+			$item['enclosures'] = array('https:' . $post->image);
+			$item['categories'] = explode(', ', $post->tags);
+
+			$item['content'] = '<p><a href="' // image preview
+				. $postUri
+				. '"><img src="https:'
+				. $post->representations->medium
+				. '"></a></p><p>' // description
+				. $post->description
+				. '</p><p><b>Size:</b> ' // image size
+				. $post->width
+				. 'x'
+				. $post->height
+				. '<br><b>Source:</b> <a href="' // source link
+				. $post->source_url
+				. '">'
+				. $post->source_url
+				. '</a></p>';
+
+			$this->items[] = $item;
+		}
+	}
+}