276 lines
6.6 KiB
PHP
276 lines
6.6 KiB
PHP
<?php
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/* This is a mashup of FlickrExploreBridge by sebsauvage and FlickrTagBridge
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* by erwang, providing the functionality of both in one.
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*/
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class FlickrBridge extends BridgeAbstract {
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const MAINTAINER = 'logmanoriginal';
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const NAME = 'Flickr Bridge';
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const URI = 'https://www.flickr.com/';
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const CACHE_TIMEOUT = 21600; // 6 hours
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const DESCRIPTION = 'Returns images from Flickr';
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const PARAMETERS = array(
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'Explore' => array(),
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'By keyword' => array(
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'q' => array(
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'name' => 'Keyword',
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'type' => 'text',
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'required' => true,
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'title' => 'Insert keyword',
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'exampleValue' => 'bird'
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),
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'media' => array(
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'name' => 'Media',
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'type' => 'list',
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'values' => array(
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'All (Photos & videos)' => 'all',
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'Photos' => 'photos',
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'Videos' => 'videos',
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),
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'defaultValue' => 'all',
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),
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'sort' => array(
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'name' => 'Sort By',
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'type' => 'list',
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'values' => array(
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'Relevance' => 'relevance',
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'Date uploaded' => 'date-posted-desc',
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'Date taken' => 'date-taken-desc',
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'Interesting' => 'interestingness-desc',
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),
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'defaultValue' => 'relevance',
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)
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),
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'By username' => array(
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'u' => array(
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'name' => 'Username',
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'type' => 'text',
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'required' => true,
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'title' => 'Insert username (as shown in the address bar)',
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'exampleValue' => 'flickr'
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),
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'media' => array(
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'name' => 'Media',
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'type' => 'list',
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'values' => array(
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'All (Photos & videos)' => 'all',
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'Photos' => 'photos',
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'Videos' => 'videos',
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),
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'defaultValue' => 'all',
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),
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'sort' => array(
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'name' => 'Sort By',
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'type' => 'list',
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'values' => array(
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'Relevance' => 'relevance',
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'Date uploaded' => 'date-posted-desc',
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'Date taken' => 'date-taken-desc',
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'Interesting' => 'interestingness-desc',
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),
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'defaultValue' => 'date-posted-desc',
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)
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)
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);
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private $username = '';
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public function collectData() {
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switch($this->queriedContext) {
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case 'Explore':
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$filter = 'photo-lite-models';
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$html = getSimpleHTMLDOM($this->getURI())
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or returnServerError('Could not request Flickr.');
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break;
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case 'By keyword':
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$filter = 'photo-lite-models';
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$html = getSimpleHTMLDOM($this->getURI())
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or returnServerError('No results for this query.');
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break;
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case 'By username':
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//$filter = 'photo-models';
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$filter = 'photo-lite-models';
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$html = getSimpleHTMLDOM($this->getURI())
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or returnServerError('Requested username can\'t be found.');
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$this->username = $this->getInput('u');
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if ($html->find('span.search-pill-name', 0)) {
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$this->username = $html->find('span.search-pill-name', 0)->plaintext;
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}
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break;
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default:
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returnClientError('Invalid context: ' . $this->queriedContext);
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}
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$model_json = $this->extractJsonModel($html);
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$photo_models = $this->getPhotoModels($model_json, $filter);
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foreach($photo_models as $model) {
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$item = array();
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/* Author name depends on scope. On a keyword search the
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* author is part of the picture data. On a username search
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* the author is part of the owner data.
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*/
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if(array_key_exists('username', $model)) {
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$item['author'] = urldecode($model['username']);
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} elseif (array_key_exists('owner', reset($model_json)[0])) {
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$item['author'] = urldecode(reset($model_json)[0]['owner']['username']);
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}
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$item['title'] = urldecode((array_key_exists('title', $model) ? $model['title'] : 'Untitled'));
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$item['uri'] = self::URI . 'photo.gne?id=' . $model['id'];
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$description = (array_key_exists('description', $model) ? $model['description'] : '');
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$item['content'] = '<a href="'
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. $item['uri']
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. '"><img src="'
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. $this->extractContentImage($model)
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. '" style="max-width: 640px; max-height: 480px;"/></a><br><p>'
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. urldecode($description)
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. '</p>';
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$item['enclosures'] = $this->extractEnclosures($model);
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$this->items[] = $item;
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}
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}
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public function getURI() {
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switch($this->queriedContext) {
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case 'Explore':
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return self::URI . 'explore';
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break;
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case 'By keyword':
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return self::URI . 'search/?q=' . urlencode($this->getInput('q'))
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. '&sort=' . $this->getInput('sort') . '&media=' . $this->getInput('media');
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break;
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case 'By username':
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return self::URI . 'search/?user_id=' . urlencode($this->getInput('u'))
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. '&sort=' . $this->getInput('sort') . '&media=' . $this->getInput('media');
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break;
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default:
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return parent::getURI();
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}
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}
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public function getName() {
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switch($this->queriedContext) {
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case 'Explore':
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return 'Explore - ' . self::NAME;
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break;
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case 'By keyword':
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return $this->getInput('q') . ' - keyword - ' . self::NAME;
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break;
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case 'By username':
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return $this->username . ' - ' . self::NAME;
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break;
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default:
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return parent::getName();
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}
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return parent::getName();
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}
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private function extractJsonModel($html) {
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// Find SCRIPT containing JSON data
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$model = $html->find('.modelExport', 0);
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$model_text = $model->innertext;
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// Find start and end of JSON data
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$start = strpos($model_text, 'modelExport:') + strlen('modelExport:');
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$end = strpos($model_text, 'auth:') - strlen('auth:');
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// Extract JSON data, remove trailing comma
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$model_text = trim(substr($model_text, $start, $end - $start));
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$model_text = substr($model_text, 0, strlen($model_text) - 1);
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return json_decode($model_text, true);
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}
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private function getPhotoModels($json, $filter) {
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// The JSON model contains a "legend" array, where each element contains
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// the path to an element in the "main" object
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$photo_models = array();
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foreach($json['legend'] as $legend) {
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$photo_model = $json['main'];
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foreach($legend as $element) { // Traverse tree
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$photo_model = $photo_model[$element];
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}
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// We are only interested in content
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if($photo_model['_flickrModelRegistry'] === $filter) {
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$photo_models[] = $photo_model;
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}
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}
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return $photo_models;
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}
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private function extractEnclosures($model) {
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$areas = array();
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foreach($model['sizes'] as $size) {
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$areas[$size['width'] * $size['height']] = $size['url'];
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}
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return array($this->fixURL(max($areas)));
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}
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private function extractContentImage($model) {
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$areas = array();
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$limit = 320 * 240;
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foreach($model['sizes'] as $size) {
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$image_area = $size['width'] * $size['height'];
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if($image_area >= $limit) {
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$areas[$image_area] = $size['url'];
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}
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}
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return $this->fixURL(min($areas));
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}
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private function fixURL($url) {
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// For some reason the image URLs don't include the protocol (https)
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if(strpos($url, '//') === 0) {
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$url = 'https:' . $url;
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}
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return $url;
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}
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}
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