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<?php
class NationalGeographicBridge extends BridgeAbstract {
const CONTEXT_BY_TOPIC = 'By Topic';
const PARAMETER_TOPIC = 'topic';
const PARAMETER_FULL_ARTICLE = 'full';
const TOPIC_MAGAZINE = 'Magazine';
const TOPIC_LATEST_STORIES = 'Latest Stories';
const NAME = 'National Geographic';
const URI = 'https://www.nationalgeographic.com/';
const DESCRIPTION = 'Fetches the latest articles from the National Geographic Magazine';
const MAINTAINER = 'logmanoriginal';
const PARAMETERS = array(
self::CONTEXT_BY_TOPIC => array(
self::PARAMETER_TOPIC => array(
'name' => 'Topic',
'type' => 'list',
'values' => array(
self::TOPIC_MAGAZINE => 'magazine',
self::TOPIC_LATEST_STORIES => 'latest-stories'
),
'title' => 'Select your topic',
'defaultValue' => 'Magazine'
)
),
'global' => array(
self::PARAMETER_FULL_ARTICLE => array(
'name' => 'Full Article',
'type' => 'checkbox',
'title' => 'Enable to load full articles (takes longer)'
)
)
);
private $topicName = '';
public function getURI() {
switch ($this->queriedContext) {
case self::CONTEXT_BY_TOPIC: {
return self::URI . $this->getInput(self::PARAMETER_TOPIC);
} break;
default: {
return parent::getURI();
}
}
}
public function collectData() {
$this->topicName = $this->getTopicName($this->getInput(self::PARAMETER_TOPIC));
switch($this->topicName) {
case self::TOPIC_MAGAZINE: {
return $this->collectMagazine();
} break;
case self::TOPIC_LATEST_STORIES: {
return $this->collectLatestStories();
} break;
default: {
returnServerError('Unknown topic: "' . $this->topicName . '"');
}
}
}
public function getName() {
switch ($this->queriedContext) {
case self::CONTEXT_BY_TOPIC: {
return static::NAME . ': ' . $this->topicName;
} break;
default: {
return parent::getName();
}
}
}
private function getTopicName($topic) {
return array_search($topic, static::PARAMETERS[self::CONTEXT_BY_TOPIC][self::PARAMETER_TOPIC]['values']);
}
private function collectMagazine() {
$uri = $this->getURI();
$html = getSimpleHTMLDOM($uri)
or returnServerError('Could not request ' . $uri);
$script = $html->find('#lead-component script')[0];
$json = json_decode($script->innertext, true);
// This is probably going to break in the future, fix it then :)
foreach($json['body']['0']['multilayout_promo_beta']['stories'] as $story) {
$this->addStory($story);
}
}
private function collectLatestStories() {
$uri = self::URI . 'latest-stories/_jcr_content/content/hubfeed.promo-hub-feed-all-stories.json';
$json_raw = getContents($uri)
or returnServerError('Could not request ' . $uri);
foreach(json_decode($json_raw, true) as $story) {
$this->addStory($story);
}
}
private function addStory($story) {
$title = 'Unknown title';
$content = '';
foreach($story['components'] as $component) {
switch($component['content_type']) {
case 'title': {
$title = $component['title']['text'];
} break;
case 'dek': {
$content = $component['dek']['text'];
} break;
}
}
$item = array();
$item['uri'] = $story['uri'];
$item['title'] = $title;
// if full article is requested!
if ($this->getInput(self::PARAMETER_FULL_ARTICLE))
$item['content'] = $this->getFullArticle($item['uri']);
else
$item['content'] = $content;
if (isset($story['promo_image'])) {
switch($story['promo_image']['content_type']) {
case 'image': {
$item['enclosures'][] = $story['promo_image']['image']['uri'];
} break;
}
}
if (isset($story['lead_media'])) {
$media = $story['lead_media'];
switch($media['content_type']) {
case 'image': {
// Don't add if promo_image was added
if (empty($item['enclosures']))
$item['enclosures'][] = $media['image']['uri'];
} break;
case 'image_gallery': {
foreach($media['image_gallery']['images'] as $image) {
$item['enclosures'][] = $image['uri'];
}
} break;
}
}
$this->items[] = $item;
}
private function getFullArticle($uri) {
$html = getSimpleHTMLDOMCached($uri)
or returnServerError('Could not load ' . $uri);
$html = defaultLinkTo($html, $uri);
$content = '';
foreach($html->find('
.content > .smartbody.text,
.content > .section.image script[type="text/json"],
.content > .section.image span[itemprop="caption"],
.content > .section.inline script[type="text/json"]
') as $element) {
if ($element->tag === 'script') {
$json = json_decode($element->innertext, true);
if (isset($json['src'])) {
$content .= '<img src="' . $json['src'] . '" width="100%" alt="' . $json['alt'] . '">';
} elseif (isset($json['galleryType']) && isset($json['endpoint'])) {
$doc = getContents($json['endpoint'])
or returnServerError('Could not load ' . $json['endpoint']);
$json = json_decode($doc, true);
foreach($json['items'] as $item) {
$content .= '<p>' . $item['caption'] . '</p>';
$content .= '<img src="' . $item['url'] . '" width="100%" alt="' . $item['caption'] . '">';
}
}
} else {
$content .= $element->outertext;
}
}
return $content;
}
}
|
