304 lines
8.7 KiB
PHP
304 lines
8.7 KiB
PHP
<?php
|
|
|
|
define('WIKIPEDIA_SUBJECT_TFA', 0); // Today's featured LoadFullArticle
|
|
define('WIKIPEDIA_SUBJECT_DYK', 1); // Did you know...
|
|
|
|
class WikipediaBridge extends BridgeAbstract{
|
|
public function loadMetadatas(){
|
|
$this->maintainer = 'logmanoriginal';
|
|
$this->name = 'Wikipedia bridge for many languages';
|
|
$this->uri = 'https://www.wikipedia.org/';
|
|
$this->description = 'Returns articles for a language of your choice';
|
|
$this->update = '2016-08-07';
|
|
|
|
$this->parameters[] =
|
|
'[
|
|
{
|
|
"name": "Language",
|
|
"identifier": "language",
|
|
"type": "list",
|
|
"required": "true",
|
|
"title": "Select your language",
|
|
"exampleValue": "English",
|
|
"values": [
|
|
{
|
|
"name": "English",
|
|
"value": "en"
|
|
},
|
|
{
|
|
"name": "German",
|
|
"value": "de"
|
|
},
|
|
{
|
|
"name": "French",
|
|
"value": "fr"
|
|
},
|
|
{
|
|
"name": "Esperanto",
|
|
"value": "eo"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"name": "Subject",
|
|
"identifier": "subject",
|
|
"type": "list",
|
|
"required": "true",
|
|
"title": "What subject are you interested in?",
|
|
"exampleValue": "Today\'s featured article",
|
|
"values": [
|
|
{
|
|
"name": "Today\'s featured article",
|
|
"value": "tfa"
|
|
},
|
|
{
|
|
"name": "Did you know...",
|
|
"value": "dyk"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"name": "Load full article",
|
|
"identifier": "fullarticle",
|
|
"type": "checkbox",
|
|
"required": "false",
|
|
"title": "Activate to always load the full article",
|
|
"exampleValue": "false"
|
|
}
|
|
]';
|
|
}
|
|
|
|
public function collectData(array $params){
|
|
if(!isset($params['language']))
|
|
$this->returnError('You must specify a valid language via \'&language=\'!', 400);
|
|
|
|
if(!$this->CheckLanguageCode(strtolower($params['language'])))
|
|
$this->returnError('The language code you provided (\'' . $params['language'] . '\') is not supported!', 400);
|
|
|
|
if(!isset($params['subject']))
|
|
$this->returnError('You must specify a valid subject via \'&subject=\'!', 400);
|
|
|
|
$subject = WIKIPEDIA_SUBJECT_TFA;
|
|
switch($params['subject']){
|
|
case 'tfa':
|
|
$subject = WIKIPEDIA_SUBJECT_TFA;
|
|
break;
|
|
case 'dyk':
|
|
$subject = WIKIPEDIA_SUBJECT_DYK;
|
|
break;
|
|
default:
|
|
$subject = WIKIPEDIA_SUBJECT_TFA;
|
|
break;
|
|
}
|
|
|
|
$fullArticle = false;
|
|
if(isset($params['fullarticle']))
|
|
$fullArticle = $params['fullarticle'] === 'on' ? true : false;
|
|
|
|
// We store the correct URI as URI of this bridge (so it can be used later!)
|
|
$this->uri = 'https://' . strtolower($params['language']) . '.wikipedia.org';
|
|
|
|
// While we at it let's also update the name for the feed
|
|
switch($subject){
|
|
case WIKIPEDIA_SUBJECT_TFA:
|
|
$this->name = 'Today\'s featured article from ' . strtolower($params['language']) . '.wikipedia.org';
|
|
break;
|
|
case WIKIPEDIA_SUBJECT_DYK:
|
|
$this->name = 'Did you know? - articles from ' . strtolower($params['language']) . '.wikipedia.org';
|
|
break;
|
|
default:
|
|
$this->name = 'Articles from ' . strtolower($params['language']) . '.wikipedia.org';
|
|
break;
|
|
}
|
|
|
|
// This will automatically send us to the correct main page in any language (try it!)
|
|
$html = $this->file_get_html($this->uri . '/wiki');
|
|
|
|
if(!$html)
|
|
$this->returnError('Could not load site: ' . $this->uri . '!', 404);
|
|
|
|
/*
|
|
* Now read content depending on the language (make sure to create one function per language!)
|
|
* We build the function name automatically, just make sure you create a private function ending
|
|
* with your desired language code, where the language code is upper case! (en -> GetContentsEN).
|
|
*/
|
|
$function = 'GetContents' . strtoupper($params['language']);
|
|
|
|
if(!method_exists($this, $function))
|
|
$this->returnError('A function to get the contents for your langauage is missing (\'' . $function . '\')!', 501);
|
|
|
|
/*
|
|
* The method takes care of creating all items.
|
|
*/
|
|
$this->$function($html, $subject, $fullArticle);
|
|
}
|
|
|
|
/**
|
|
* Returns true if the language code is part of the parameters list
|
|
*/
|
|
private function CheckLanguageCode($languageCode){
|
|
$parameter = json_decode($this->parameters[0], true);
|
|
$languages = $parameter[0]['values'];
|
|
|
|
$language_names = array();
|
|
|
|
foreach($languages as $language)
|
|
$language_names[] = $language['value'];
|
|
|
|
return in_array($languageCode, $language_names);
|
|
}
|
|
|
|
/**
|
|
* Replaces all relative URIs with absolute ones
|
|
* @param $element A simplehtmldom element
|
|
* @return The $element->innertext with all URIs replaced
|
|
*/
|
|
private function ReplaceURIInHTMLElement($element){
|
|
return str_replace('href="/', 'href="' . $this->uri . '/', $element->innertext);
|
|
}
|
|
|
|
/*
|
|
* Adds a new item to $items using a generic operation (should work for most (all?) wikis)
|
|
*/
|
|
private function AddTodaysFeaturedArticleGeneric($element, $fullArticle){
|
|
// Clean the bottom of the featured article
|
|
$element->find('div', -1)->outertext = '';
|
|
|
|
// The title and URI of the article is best defined in an anchor containint the string '...' ('full article ...')
|
|
$target = $element->find('p/a', 0); // We'll use the first anchor as fallback
|
|
foreach($element->find('//a') as $anchor){
|
|
if(strpos($anchor->innertext, '...') !== false){
|
|
$target = $anchor;
|
|
break;
|
|
}
|
|
}
|
|
|
|
$item = new \Item();
|
|
$item->uri = $this->uri . $target->href;
|
|
$item->title = $target->title;
|
|
|
|
if(!$fullArticle)
|
|
$item->content = strip_tags($this->ReplaceURIInHTMLElement($element), '<a><p><br><img>');
|
|
else
|
|
$item->content = $this->LoadFullArticle($item->uri);
|
|
|
|
$this->items[] = $item;
|
|
}
|
|
|
|
/*
|
|
* Adds a new item to $items using a generic operation (should work for most (all?) wikis)
|
|
*/
|
|
private function AddDidYouKnowGeneric($element, $fullArticle){
|
|
foreach($element->find('ul', 0)->find('li') as $entry){
|
|
$item = new \Item();
|
|
|
|
// We can only use the first anchor, there is no way of finding the 'correct' one if there are multiple
|
|
$item->uri = $this->uri . $entry->find('a', 0)->href;
|
|
$item->title = strip_tags($entry->innertext);
|
|
|
|
if(!$fullArticle)
|
|
$item->content = $this->ReplaceURIInHTMLElement($entry);
|
|
else
|
|
$item->content = $this->LoadFullArticle($item->uri);
|
|
|
|
$this->items[] = $item;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Loads the full article from a given URI
|
|
*/
|
|
private function LoadFullArticle($uri){
|
|
$content_html = $this->file_get_html($uri);
|
|
|
|
if(!$content_html)
|
|
$this->returnError('Could not load site: ' . $uri . '!', 404);
|
|
|
|
$content = $content_html->find('#mw-content-text', 0);
|
|
|
|
if(!$content)
|
|
$this->returnError('Could not find content in page: ' . $uri . '!', 404);
|
|
|
|
// Let's remove a couple of things from the article
|
|
$table = $content->find('#toc', 0); // Table of contents
|
|
if(!$table === false)
|
|
$table->outertext = '';
|
|
|
|
foreach($content->find('ol.references') as $reference) // References
|
|
$reference->outertext = '';
|
|
|
|
return str_replace('href="/', 'href="' . $this->uri . '/', $content->innertext);
|
|
}
|
|
|
|
/**
|
|
* Implementation for de.wikipedia.org
|
|
*/
|
|
private function GetContentsDE($html, $subject, $fullArticle){
|
|
switch($subject){
|
|
case WIKIPEDIA_SUBJECT_TFA:
|
|
$element = $html->find('div[id=mf-tfa]', 0);
|
|
$this->AddTodaysFeaturedArticleGeneric($element, $fullArticle);
|
|
break;
|
|
case WIKIPEDIA_SUBJECT_DYK:
|
|
$element = $html->find('div[id=mf-dyk]', 0);
|
|
$this->AddDidYouKnowGeneric($element, $fullArticle);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation for fr.wikipedia.org
|
|
*/
|
|
private function GetContentsFR($html, $subject, $fullArticle){
|
|
switch($subject){
|
|
case WIKIPEDIA_SUBJECT_TFA:
|
|
$element = $html->find('div[id=accueil-lumieresur]', 0);
|
|
$this->AddTodaysFeaturedArticleGeneric($element, $fullArticle);
|
|
break;
|
|
case WIKIPEDIA_SUBJECT_DYK:
|
|
$element = $html->find('div[id=SaviezVous]', 0);
|
|
$this->AddDidYouKnowGeneric($element, $fullArticle);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation for en.wikipedia.org
|
|
*/
|
|
private function GetContentsEN($html, $subject, $fullArticle){
|
|
switch($subject){
|
|
case WIKIPEDIA_SUBJECT_TFA:
|
|
$element = $html->find('div[id=mp-tfa]', 0);
|
|
$this->AddTodaysFeaturedArticleGeneric($element, $fullArticle);
|
|
break;
|
|
case WIKIPEDIA_SUBJECT_DYK:
|
|
$element = $html->find('div[id=mp-dyk]', 0);
|
|
$this->AddDidYouKnowGeneric($element, $fullArticle);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implementation for eo.wikipedia.org
|
|
*/
|
|
private function GetContentsEO($html, $subject, $fullArticle){
|
|
switch($subject){
|
|
case WIKIPEDIA_SUBJECT_TFA:
|
|
$element = $html->find('div[id=mf-artikolo-de-la-semajno]', 0);
|
|
$this->AddTodaysFeaturedArticleGeneric($element, $fullArticle);
|
|
break;
|
|
case WIKIPEDIA_SUBJECT_DYK:
|
|
$element = $html->find('div[id=mw-content-text]', 0)->find('table', 4)->find('td', 4);
|
|
$this->AddDidYouKnowGeneric($element, $fullArticle);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|