Cleanup
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Marcel Kapfer (mmk2410)
parent
cb491341df
commit
9947a5f033
391 changed files with 0 additions and 15712 deletions
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@ -1,209 +0,0 @@
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<?php
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namespace PicoFeed\Reader;
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use DOMXPath;
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use PicoFeed\Config\Config;
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use PicoFeed\Client\Client;
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use PicoFeed\Client\Url;
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use PicoFeed\Logging\Logger;
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use PicoFeed\Parser\XmlParser;
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/**
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* Reader class.
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*
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* @author Frederic Guillot
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*/
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class Reader
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{
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/**
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* Feed formats for detection.
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*
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* @var array
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*/
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private $formats = array(
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'Atom' => '//feed',
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'Rss20' => '//rss[@version="2.0"]',
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'Rss92' => '//rss[@version="0.92"]',
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'Rss91' => '//rss[@version="0.91"]',
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'Rss10' => '//rdf',
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);
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/**
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* Config class instance.
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*
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* @var \PicoFeed\Config\Config
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*/
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private $config;
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/**
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* Constructor.
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*
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* @param \PicoFeed\Config\Config $config Config class instance
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*/
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public function __construct(Config $config = null)
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{
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$this->config = $config ?: new Config();
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Logger::setTimezone($this->config->getTimezone());
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}
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/**
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* Download a feed (no discovery).
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*
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* @param string $url Feed url
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* @param string $last_modified Last modified HTTP header
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* @param string $etag Etag HTTP header
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* @param string $username HTTP basic auth username
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* @param string $password HTTP basic auth password
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*
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* @return \PicoFeed\Client\Client
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*/
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public function download($url, $last_modified = '', $etag = '', $username = '', $password = '')
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{
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$url = $this->prependScheme($url);
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return Client::getInstance()
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->setConfig($this->config)
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->setLastModified($last_modified)
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->setEtag($etag)
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->setUsername($username)
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->setPassword($password)
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->execute($url);
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}
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/**
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* Discover and download a feed.
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*
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* @param string $url Feed or website url
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* @param string $last_modified Last modified HTTP header
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* @param string $etag Etag HTTP header
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* @param string $username HTTP basic auth username
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* @param string $password HTTP basic auth password
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*
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* @return \PicoFeed\Client\Client
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*/
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public function discover($url, $last_modified = '', $etag = '', $username = '', $password = '')
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{
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$client = $this->download($url, $last_modified, $etag, $username, $password);
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// It's already a feed or the feed was not modified
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if (!$client->isModified() || $this->detectFormat($client->getContent())) {
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return $client;
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}
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// Try to find a subscription
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$links = $this->find($client->getUrl(), $client->getContent());
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if (empty($links)) {
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throw new SubscriptionNotFoundException('Unable to find a subscription');
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}
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return $this->download($links[0], $last_modified, $etag, $username, $password);
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}
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/**
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* Find feed urls inside a HTML document.
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*
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* @param string $url Website url
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* @param string $html HTML content
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*
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* @return array List of feed links
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*/
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public function find($url, $html)
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{
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Logger::setMessage(get_called_class().': Try to discover subscriptions');
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$dom = XmlParser::getHtmlDocument($html);
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$xpath = new DOMXPath($dom);
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$links = array();
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$queries = array(
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'//link[@type="application/rss+xml"]',
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'//link[@type="application/atom+xml"]',
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);
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foreach ($queries as $query) {
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$nodes = $xpath->query($query);
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foreach ($nodes as $node) {
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$link = $node->getAttribute('href');
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if (!empty($link)) {
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$feedUrl = new Url($link);
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$siteUrl = new Url($url);
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$links[] = $feedUrl->getAbsoluteUrl($feedUrl->isRelativeUrl() ? $siteUrl->getBaseUrl() : '');
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}
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}
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}
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Logger::setMessage(get_called_class().': '.implode(', ', $links));
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return $links;
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}
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/**
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* Get a parser instance.
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*
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* @param string $url Site url
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* @param string $content Feed content
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* @param string $encoding HTTP encoding
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*
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* @return \PicoFeed\Parser\Parser
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*/
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public function getParser($url, $content, $encoding)
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{
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$format = $this->detectFormat($content);
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if (empty($format)) {
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throw new UnsupportedFeedFormatException('Unable to detect feed format');
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}
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$className = '\PicoFeed\Parser\\'.$format;
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$parser = new $className($content, $encoding, $url);
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$parser->setHashAlgo($this->config->getParserHashAlgo());
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$parser->setTimezone($this->config->getTimezone());
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$parser->setConfig($this->config);
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return $parser;
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}
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/**
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* Detect the feed format.
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*
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* @param string $content Feed content
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*
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* @return string
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*/
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public function detectFormat($content)
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{
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$dom = XmlParser::getHtmlDocument($content);
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$xpath = new DOMXPath($dom);
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foreach ($this->formats as $parser_name => $query) {
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$nodes = $xpath->query($query);
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if ($nodes->length === 1) {
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return $parser_name;
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}
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}
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return '';
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}
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/**
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* Add the prefix "http://" if the end-user just enter a domain name.
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*
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* @param string $url Url
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* @retunr string
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*/
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public function prependScheme($url)
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{
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if (!preg_match('%^https?://%', $url)) {
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$url = 'http://'.$url;
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}
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return $url;
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}
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}
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