miniflux-legacy/vendor/PicoFeed/Client.php

139 lines
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PHP
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2013-07-17 01:54:44 +02:00
<?php
namespace PicoFeed;
require_once __DIR__.'/Logging.php';
abstract class Client
{
public $etag = '';
public $last_modified = '';
public $is_modified = true;
public $content = '';
public $url = '';
public $timeout = 10;
public $max_redirects = 5;
public $max_body_size = 2097152; // 2MB
public $user_agent = 'PicoFeed (https://github.com/fguillot/picoFeed)';
public static function create($adapter = null)
{
return $adapter ?: self::chooseAdapter();
}
public static function chooseAdapter()
{
if (function_exists('curl_init')) {
require_once __DIR__.'/Clients/Curl.php';
return new Clients\Curl;
} else if (ini_get('allow_url_fopen')) {
require_once __DIR__.'/Clients/Stream.php';
return new Clients\Stream;
}
throw new \LogicException('You must have "allow_url_fopen=1" or curl extension installed');
}
public function execute()
{
if ($this->url === '') {
throw new \LogicException('The URL is missing');
}
Logging::log('Fetch URL: '.$this->url);
Logging::log('Etag: '.$this->etag);
Logging::log('Last-Modified: '.$this->last_modified);
$response = $this->doRequest();
if (is_array($response)) {
if ($response['status'] == 304) {
$this->is_modified = false;
}
else {
$this->etag = isset($response['headers']['ETag']) ? $response['headers']['ETag'] : '';
$this->last_modified = isset($response['headers']['Last-Modified']) ? $response['headers']['Last-Modified'] : '';
$this->content = $response['body'];
}
}
}
public function parseHeaders(array $lines)
{
$status = 200;
$headers = array();
foreach ($lines as $line) {
if (strpos($line, 'HTTP') === 0 && strpos($line, '301') === false && strpos($line, '302') === false) {
$status = (int) substr($line, 9, 3);
}
else if (strpos($line, ':') !== false) {
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@list($name, $value) = explode(': ', $line);
if ($value) $headers[trim($name)] = trim($value);
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}
}
Logging::log('HTTP status code: '.$status);
foreach ($headers as $name => $value) {
Logging::log('HTTP headers: '.$name.' => '.$value);
}
return array($status, $headers);
}
public function setLastModified($last_modified)
{
$this->last_modified = $last_modified;
return $this;
}
public function getLastModified()
{
return $this->last_modified;
}
public function setEtag($etag)
{
$this->etag = $etag;
return $this;
}
public function getEtag()
{
return $this->etag;
}
public function getUrl()
{
return $this->url;
}
public function getContent()
{
return $this->content;
}
public function isModified()
{
return $this->is_modified;
}
}