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| <?php
<?php
// proxy http
// auteur: Marc Gauthier
// 02/09/2009
// les erreurs dans les log du serveur
// http://www.papygeek.com/download/53/
// Transfer-Encoding: chunked
//
// Didier Richard - IGN - dérivation pour publication
// (c) IGN 2010
// License : http://creativecommons.org/licenses/by-nc-sa/2.0/fr/
// ----------------------------------------------------------
// global variables :
$debug= 1;
$debug_html= 0;
$sUrl= '';
$sReponse= '';
$chunked= -1;
// via un proxy d'entreprise/IP
$proxy_host= '';
$proxy_port= 80;
$content_types= array(
'application/vnd.google-earth.kml+xml',
'application/vnd.google-earth.kml',
//'application/vnd.google-earth.kmz', # TODO needs to unzip response ...
'application/vnd.ogc.se_xml',
'application/vnd.ogc.wms_xml',
'application/vnd.ogc.wfs_xml',
'application/vnd.ogc.gml',
'application/soap+xml',
'application/xml',
'text/xml',
'text/plain',
'text/html');
// ----------------------------------------------------------
//
// écriture d'un message de log
function carp($msg) {
global $debug;
global $debug_html;
if ($debug) {
if ($debug_html) {
print "__FILE__.:$msg.<br>\n";
}
error_log(__FILE__.": $msg", 0);
}
}
//
// écriture d'un message de log et erreur http
function confess($msg) {
carp($msg);
header("HTTP/1.0 500 $msg");
exit;
}
//
// mode chunk
function unchunk($result) {
return preg_replace_callback(
'/(?:(?:\r\n|\n)|^)([0-9A-F]+)(?:\r\n|\n){1,2}(.*?)'.
'((?:\r\n|\n)(?:[0-9A-F]+(?:\r\n|\n))|$)/si',
create_function(
'$matches',
'return hexdec($matches[1]) == strlen($matches[2]) ? $matches[2] : $matches[0];'
),
$result
);
}
//
// la fonction proxy
// 2 grandes étapes:
// - émission de la requête
// - réception de la réponse
function proxy($sUrl) {
global $proxy_host, $proxy_port, $chunked, $content_types;
//
// analyse de l'url et construction de la requête
$sUrl= urldecode($sUrl);
$referrer= $_SERVER["HTTP_REFERER"];
$userAgent= $_SERVER["HTTP_USER_AGENT"];
$aUrl= @parse_url($sUrl);
if (!isset($aUrl['scheme'])) {
//try absolute and relative path:
confess("proxy scheme missing");
}
// construction de la requete
$acceptH= $_SERVER['HTTP_ACCEPT'];
$pragmaH= $_SERVER['HTTP_PRAGMA'];
$cacheControlH= $_SERVER['HTTP_CACHE_CONTROL'];
$acceptLanguageH= $_SERVER['HTTP_ACCEPT_CHARSET'];
$keepAliveH= $_SERVER['HTTP_KEEP_ALIVE'];
$acceptEncodingH= $_SERVER['HTTP_ACCEPT_ENCODING'];
$connectionH= $_SERVER['HTTP_CONNECTION'];
$SOAPActionH= $_SERVER['HTTP_SOAPACTION'];
$acceptCharsetH= $_SERVER['HTTP_ACCEPT_CHARSET'];
$gppKeyH= $_SERVER['HTTP_GPPKEY'];#if gppKey in HTTP Header
$Hs= "Host: ".$aUrl['host'].($aUrl['port']? ":".$aUrl['port'] : "")."\r\n"
. (strlen($acceptH)>0? "Accept: ".$acceptH : join(",", $content_types))."\r\n"
. (strlen($pragmaH)>0? "Pragma: ".$pragmaH."\r\n" : "")
. (strlen($cacheControlH)>0? "Cache-Control: ".$cacheControlH."\r\n" : "")
. (strlen($acceptLanguageH)>0? "Accept-Language: ".$acceptLanguageH."\r\n" : "")
. (strlen($keepAliveH)>0? "Keep-Alive: ".$keepAliveH."\r\n" : "")
. (strlen($acceptEncodingH)>0? "Accept-Encoding: ".$acceptEncodingH."\r\n" : "")
. (strlen($connectionH)>0? "Connection: ".$connectionH."\r\n" : "")
. (strlen($SOAPActionH)>0? "SOAPAction: ".$SOAPActionH."\r\n" : "")
. (strlen($acceptCharsetH)>0? "Accept-Charset: ".$acceptCharsetH."\r\n" : "")
. (strlen($gppKeyH)>0? "gppkey: ".$gppKeyH."\r\n" : "")
. (strlen($referrer)>0? "Referer: ".$referrer."\r\n" : "")
. (strlen($userAgent)>0? "User-Agent: ".$userAgent."\r\n" : "")
;
carp($Hs);
if ($_SERVER["REQUEST_METHOD"]==='GET') {
$sReq= "GET $sUrl HTTP/1.0\r\n"
. $Hs
;
} else {
if ($_SERVER["REQUEST_METHOD"]==='POST') {
$data= '';
if (count($_POST)){
while (list($key, $val)= each($_POST)){
$data.="$key : $val\n";
}
} else {
$data= trim(file_get_contents('php://input'));
}
$sReq= "POST $sUrl HTTP/1.0\r\n"
. $Hs
. "Content-Type: text/xml\r\n"
. "Content-length: ".strlen($data)."\r\n"
. "\r\n"
. $data
;
}
}
$sReq.= "\r\n";
if (empty($proxy_host)) {
$host= $aUrl["host"];
$port= $aUrl["port"] ? $aUrl["port"] : 80;
} else {
$host= $proxy_host;
$port= $proxy_port;
}
// envoi de la requête
carp("host:$host port:$port url:$sUrl");
$fp= @fsockopen($host, $port, $errno, $errstr, 5);
if (!$fp) {
confess("fsockopen failed: $errstr ($errno)");
}
carp("sReq:$sReq");
fwrite($fp, $sReq);
// attente de la réponse
$headers= '';
$sReponse= '';
ob_start();
while (!feof($fp)) {
$sReponse.= fread($fp, 4096);
}
fclose ($fp);
$eoh= strpos($sReponse, "\r\n\r\n");
$headers= substr($sReponse, 0, $eoh);
$sReponse= substr($sReponse, $eoh+4);
$Hs= preg_split('/(?:\r\n|\n)/', $headers);
carp("Hs=[".count($hs)."]");
for ($i= 0, $l= count($hs); $i<$l; $i++) {
if (preg_match('/^Content-Length/i', $hs[$i])) {
continue;
}
if (preg_match('/^Transfer-Encoding: chunked/i', $hs[$i])) {
// Transfer-Encoding: chunked
carp("chunked response");
$sReponse= unchunck($sReponse);
continue;
}
#carp("header=[$hs[$i]]");
header($hs[$i]);
}
header("Content-Length: ".strlen($sReponse));
print $sReponse;
}
// ----------------------------------------------------------
// programme principal:
// on accept que GET/POST (pour l'instant)
if (($_SERVER["REQUEST_METHOD"]==='GET' or $_SERVER["REQUEST_METHOD"]==='POST') &&
(isset($_REQUEST["url"]) && strlen($_REQUEST["url"])>0)) {
$sUrl= substr($_SERVER["QUERY_STRING"],4);
carp("GET url:$sUrl");
proxy($sUrl);
exit;
}
// on ne traite pas la demande :
carp("REQUEST_METHOD:".$_SERVER["REQUEST_METHOD"]." QUERY_STRING:".$_SERVER["QUERY_STRING"] );
if ($debug) {
phpinfo(INFO_VARIABLES);
}
exit;
// ----------------------------------------------------------
?> |
Comment faire pour incorporer l'outil de recherche
Répondre avec citation
). Et j'ai trouvé l'histoire de proxy dans le code, mais je ne savais pas quoi faire avec, merci donc beaucoup du tuyau.
Envoyé par martink
)
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