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<?php
/*
* FedoraClient is a PHP classe to interact with web services
*
* Copyright (C) 2010 Remi Collet
* http://github.com/remicollet/rpmphp.
*
* Inspired from python-fedora
*
* FedoraClient is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* python-fedora is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* See <http://www.gnu.org/licenses/>
*
*/
define ('FEDORACLIENT_VERSION','0.1');
if (!function_exists('curl_version')) {
die("curl extension required\n");
}
require_once('Cache/Lite.php');
abstract class FedoraClient {
private $url;
private $agent;
private $debug = 0;
protected $cache;
function __construct ($url, array $options) {
$this->cache = new Cache_Lite(array('memoryCaching'=>true, 'automaticSerialization'=>true));
$this->url = $url;
if (isset($options['agent']) && !empty($options['agent'])) {
$this->agent = $options['agent'];
} else {
$this->agent = 'Fedora PHPClient/'.FEDORACLIENT_VERSION;
}
if (isset($options['debug']) && intval($options['debug'])>0) {
$this->debug = intval($options['debug']);
}
$this->logDebug(3,__CLASS__."::".__FUNCTION__.": url='$url', agent='".$this->agent."'");
}
function logDebug($level, $msg) {
if ($this->debug>=$level) {
echo "[debug][$level] $msg\n";
}
}
function sendRequest($method, array $options=array()) {
$curl = curl_init();
# And join to make our url.
$url = $this->url.$method;
curl_setopt($curl, CURLOPT_URL, $url);
# Boilerplate so pycurl processes cookies
curl_setopt($curl, CURLOPT_COOKIEFILE, '/dev/null');
# Associate with the response to accumulate data
$this->data='';
curl_setopt($curl, CURLOPT_WRITEFUNCTION, array($this, 'receive'));
# Follow redirect
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($curl, CURLOPT_MAXREDIRS, 5);
# Set standard headers
curl_setopt($curl, CURLOPT_HTTPHEADER, array('User-agent: '.$this->agent, 'Accept: application/json'));
# run the request
$this->logDebug(2,__CLASS__."::".__FUNCTION__.": call '$url'");
curl_exec($curl);
# Check for auth failures
# Note: old TG apps returned 403 Forbidden on authentication failures.
# Updated apps return 401 Unauthorized
# We need to accept both until all apps are updated to return 401.
$http_status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ($http_status==401 || $http_status==403) {
$this->logDebug(1,__CLASS__."::".__FUNCTION__.": http_status '$http_status' Authentication failed logging in");
return array();
} else if ($http_status>=400) {
$this->logDebug(1,__CLASS__."::".__FUNCTION__.": http_status '$http_status' Unknown HTTP Server Response");
return array();
} else {
$this->logDebug(2,__CLASS__."::".__FUNCTION__.": http_status '$http_status'");
}
$this->logDebug(2,__CLASS__."::".__FUNCTION__.": close connexion");
curl_close($curl);
return json_decode($this->data, true);
}
function receive($curl, $data) {
$this->logDebug(9,__CLASS__."::".__FUNCTION__.": $data");
$this->data .= $data;
return strlen($data);
}
}
class FedoraPkgdb extends FedoraClient {
function __construct (array $options=array()) {
parent::__construct('https://admin.fedoraproject.org/pkgdb/', $options);
$this->logDebug(3,__CLASS__."::".__FUNCTION__);
}
function getBranches($refresh=false) {
$rep = ($refresh ? false : $this->cache->get(__FUNCTION__,__CLASS__));
if ($rep) {
$this->logDebug(2,__CLASS__."::".__FUNCTION__."() get from cache");
} else {
$rep =$this->sendRequest('collections');
$this->cache->save($rep,__FUNCTION__,__CLASS__);
$this->logDebug(2,__CLASS__."::".__FUNCTION__."() save to cache");
}
$branches = array();
if (isset($rep['collections'])) {
foreach ($rep['collections'] as $coll) if (isset($coll[0]['branchname'])) {
$branches[$coll[0]['branchname']] = $coll[0];
}
}
return $branches;
}
function getPackageInfo($name, $refresh=false) {
$url="acls/name/$name";
$rep = ($refresh ? false : $this->cache->get($url,__CLASS__));
if ($rep) {
$this->logDebug(2,__CLASS__."::".__FUNCTION__."($name) get from cache");
} else {
$rep =$this->sendRequest($url);
$this->cache->save($rep,$url,__CLASS__);
$this->logDebug(2,__CLASS__."::".__FUNCTION__."($name) save to cache");
}
if (isset($rep['status']) && !$rep['status']) {
$this->logDebug(1,__CLASS__."::".__FUNCTION__."($name) ".$rep['message']);
return false;
}
$branches = array();
foreach ($rep['packageListings'] as $pack) {
$branches[$pack['collection']['branchname']] = $pack;
}
return $branches;
}
function getBranch($name, $refresh=false) {
$branches = $this->getBranches($refresh);
if (isset($branches[$name])) {
return $branches[$name];
}
return false;
}
function getCritPath($refresh=false) {
$url="lists/critpath";
$rep = ($refresh ? false : $this->cache->get($url,__CLASS__));
if ($rep) {
$this->logDebug(2,__CLASS__."::".__FUNCTION__." get from cache");
} else {
$rep =$this->sendRequest($url);
$this->cache->save($rep,$url,__CLASS__);
$this->logDebug(2,__CLASS__."::".__FUNCTION__." save to cache");
}
return $rep['pkgs'];
}
}
?>
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