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<?php
/* This is a mashup of FlickrExploreBridge by sebsauvage and FlickrTagBridge
* by erwang, providing the functionality of both in one.
*/
class FlickrBridge extends BridgeAbstract {
const MAINTAINER = 'logmanoriginal';
const NAME = 'Flickr Bridge';
const URI = 'https://www.flickr.com/';
const CACHE_TIMEOUT = 21600; // 6 hours
const DESCRIPTION = 'Returns images from Flickr';
const PARAMETERS = array(
'Explore' => array(),
'By keyword' => array(
'q' => array(
'name' => 'Keyword',
'type' => 'text',
'required' => true,
'title' => 'Insert keyword',
'exampleValue' => 'bird'
),
'media' => array(
'name' => 'Media',
'type' => 'list',
'values' => array(
'All (Photos & videos)' => 'all',
'Photos' => 'photos',
'Videos' => 'videos',
),
'defaultValue' => 'all',
),
'sort' => array(
'name' => 'Sort By',
'type' => 'list',
'values' => array(
'Relevance' => 'relevance',
'Date uploaded' => 'date-posted-desc',
'Date taken' => 'date-taken-desc',
'Interesting' => 'interestingness-desc',
),
'defaultValue' => 'relevance',
)
),
'By username' => array(
'u' => array(
'name' => 'Username',
'type' => 'text',
'required' => true,
'title' => 'Insert username (as shown in the address bar)',
'exampleValue' => 'flickr'
),
'media' => array(
'name' => 'Media',
'type' => 'list',
'values' => array(
'All (Photos & videos)' => 'all',
'Photos' => 'photos',
'Videos' => 'videos',
),
'defaultValue' => 'all',
),
'sort' => array(
'name' => 'Sort By',
'type' => 'list',
'values' => array(
'Relevance' => 'relevance',
'Date uploaded' => 'date-posted-desc',
'Date taken' => 'date-taken-desc',
'Interesting' => 'interestingness-desc',
),
'defaultValue' => 'date-posted-desc',
)
)
);
private $username = '';
public function collectData() {
switch($this->queriedContext) {
case 'Explore':
$filter = 'photo-lite-models';
$html = getSimpleHTMLDOM($this->getURI());
break;
case 'By keyword':
$filter = 'photo-lite-models';
$html = getSimpleHTMLDOM($this->getURI());
break;
case 'By username':
//$filter = 'photo-models';
$filter = 'photo-lite-models';
$html = getSimpleHTMLDOM($this->getURI());
$this->username = $this->getInput('u');
if ($html->find('span.search-pill-name', 0)) {
$this->username = $html->find('span.search-pill-name', 0)->plaintext;
}
break;
default:
returnClientError('Invalid context: ' . $this->queriedContext);
}
$model_json = $this->extractJsonModel($html);
$photo_models = $this->getPhotoModels($model_json, $filter);
foreach($photo_models as $model) {
$item = array();
/* Author name depends on scope. On a keyword search the
* author is part of the picture data. On a username search
* the author is part of the owner data.
*/
if(array_key_exists('username', $model)) {
$item['author'] = urldecode($model['username']);
} elseif (array_key_exists('owner', reset($model_json)[0])) {
$item['author'] = urldecode(reset($model_json)[0]['owner']['username']);
}
$item['title'] = urldecode((array_key_exists('title', $model) ? $model['title'] : 'Untitled'));
$item['uri'] = self::URI . 'photo.gne?id=' . $model['id'];
$description = (array_key_exists('description', $model) ? $model['description'] : '');
$item['content'] = '<a href="'
. $item['uri']
. '"><img src="'
. $this->extractContentImage($model)
. '" style="max-width: 640px; max-height: 480px;"/></a><br><p>'
. urldecode($description)
. '</p>';
$item['enclosures'] = $this->extractEnclosures($model);
$this->items[] = $item;
}
}
public function getURI() {
switch($this->queriedContext) {
case 'Explore':
return self::URI . 'explore';
break;
case 'By keyword':
return self::URI . 'search/?q=' . urlencode($this->getInput('q'))
. '&sort=' . $this->getInput('sort') . '&media=' . $this->getInput('media');
break;
case 'By username':
return self::URI . 'search/?user_id=' . urlencode($this->getInput('u'))
. '&sort=' . $this->getInput('sort') . '&media=' . $this->getInput('media');
break;
default:
return parent::getURI();
}
}
public function getName() {
switch($this->queriedContext) {
case 'Explore':
return 'Explore - ' . self::NAME;
break;
case 'By keyword':
return $this->getInput('q') . ' - keyword - ' . self::NAME;
break;
case 'By username':
return $this->username . ' - ' . self::NAME;
break;
default:
return parent::getName();
}
return parent::getName();
}
private function extractJsonModel($html) {
// Find SCRIPT containing JSON data
$model = $html->find('.modelExport', 0);
$model_text = $model->innertext;
// Find start and end of JSON data
$start = strpos($model_text, 'modelExport:') + strlen('modelExport:');
$end = strpos($model_text, 'auth:') - strlen('auth:');
// Extract JSON data, remove trailing comma
$model_text = trim(substr($model_text, $start, $end - $start));
$model_text = substr($model_text, 0, strlen($model_text) - 1);
return json_decode($model_text, true);
}
private function getPhotoModels($json, $filter) {
// The JSON model contains a "legend" array, where each element contains
// the path to an element in the "main" object
$photo_models = array();
foreach($json['legend'] as $legend) {
$photo_model = $json['main'];
foreach($legend as $element) { // Traverse tree
$photo_model = $photo_model[$element];
}
// We are only interested in content
if($photo_model['_flickrModelRegistry'] === $filter) {
$photo_models[] = $photo_model;
}
}
return $photo_models;
}
private function extractEnclosures($model) {
$areas = array();
foreach($model['sizes'] as $size) {
$areas[$size['width'] * $size['height']] = $size['url'];
}
return array($this->fixURL(max($areas)));
}
private function extractContentImage($model) {
$areas = array();
$limit = 320 * 240;
foreach($model['sizes'] as $size) {
$image_area = $size['width'] * $size['height'];
if($image_area >= $limit) {
$areas[$image_area] = $size['url'];
}
}
return $this->fixURL(min($areas));
}
private function fixURL($url) {
// For some reason the image URLs don't include the protocol (https)
if(strpos($url, '//') === 0) {
$url = 'https:' . $url;
}
return $url;
}
}
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