I'm new to php and I need to receive data from a socket in order to parse the song title from a given IP. In order to learn and test sockets I first tried to connect and receive data from the given IP.
Here's my code:
#!/usr/bin/php -q
<?php
//$sock = fsockopen('205.164.35.5:80');
$sock = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
$result = socket_connect($sock, "205.164.35.5", 80);
$request = "GET / HTTP/1.1\r\n";
$request .= "Icy-MetaData: 1\r\n";
socket_write($sock,$request,strlen($request));
echo "OK";
$out = " ";
while($out = socket_read($sock,2048)){
echo $out;
}
socket_close($sock);
?>
When I run it from the terminal it does not generate any errors, however it displays nothing. I tried to connect to that ip with "telnet" command and sent the same request and on the terminal I had a response. Any kind of help would be really appreciated.
Thank you...
You should terminate the request with two CRLFs:
- $request .= "Icy-MetaData: 1\r\n";
+ $request .= "Icy-MetaData: 1\r\n\r\n";
Hope it helps.
Related
I am trying to make a simple PHP, javascript websocket test project and I ran into the issue where PHP would not continue the while(true) loop once I call the socket accept function. It waits for an actual connection before continuing the loop. Is there a way to call this asynchronously so the while loop can continue? Or is there a way to immediately accept more incoming connections after one is accepted?
Here is my code
<?php
error_reporting(E_ALL);
/* Allow the script to hang around waiting for connections.
set_time_limit(0);
/* Turn on implicit output flushing so we see what we're getting
as it comes in.
ob_implicit_flush();*/
$address = 'localhost';
$port = 8080;
$clients = [];
$server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);
socket_bind($server, $address, $port);
socket_listen($server);
/*$client = acceptConn($server);
$clients[0] = $client;*/
// Send WebSocket handshake headers.
$newclient = socket_accept($server);
handshake($server, $newclient);
$clients[count($clients)] = $newclient;
function handshake($server, $client){
$request = socket_read($client, 5000);
preg_match('#Sec-WebSocket-Key: (.*)\r\n#', $request, $matches);
$key = base64_encode(pack(
'H*',
sha1($matches[1] . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')
));
$headers = "HTTP/1.1 101 Switching Protocols\r\n";
$headers .= "Upgrade: websocket\r\n";
$headers .= "Connection: Upgrade\r\n";
$headers .= "Sec-WebSocket-Version: 13\r\n";
$headers .= "Sec-WebSocket-Accept: $key\r\n\r\n";
socket_write($client, $headers, strlen($headers));
}
// Send messages into WebSocket in a loop.
do {
sleep(1);
//echo "next";
$content = 'Now: ' . time();
$response = chr(129) . chr(strlen($content)) . $content;
foreach($clients as $key => $item){
if(socket_write($item, $response) != 17){
socket_close($item);
unset($clients[$key]);
continue;
//echo json_encode($clients);
}
continue;
}
/*echo count($clients);
$newclient = socket_accept($server);
echo gettype($newclient);
$clients[count($clients)] = $client;*/
}while (true);
?>
I found the solution.
To anyone who was wondering what it was, use:
socket_set_nonblock($socketservervariable);
to make the server not wait for a client to connect before proceeding. That creates a new error though. When doing the client handshake the socket_read wanted a socket but it got the boolean value of false when the socket_accept function didn't detect a client connecting. So this was my solution to that:
$newclient = socket_accept($server);
if($newclient != false){
handshake($server, $newclient);
$clients[count($clients)] = $newclient;
echo "\n\nNew client connected!\n\n";
}
and that solved all of my problems.
I am trying to send data from a winsock application to a PHP script. I have already tried various header types without any success and I can't seem to find enough information.
Data is sent, but the PHP script is not printing any results, so I think the error is headers types.
C Winsock code
int main()
{
SOCKADDR_IN sock;
SOCKET s;
WSADATA wsa;
int lengthofrequest = 0;
char httprequest[180] =
"POST /test.php?name=alex&password=secret HTTP/1.1\r\n"
"Host: 127.0.0.1\r\n"
"Pragma: no-cache\r\n"
"Content-type: text/html\r\n"
"Connection: close\r\n"
"Content-Length: 25\r\n"
"\r\n";
lengthofrequest = strlen(httprequest);
// init winsock
if (WSAStartup(MAKEWORD(2, 2), &wsa) != 0)
return WSASYSNOTREADY;
sock.sin_addr.s_addr = inet_addr("127.0.0.1");
sock.sin_family = AF_INET;
sock.sin_port = htons(80);
// create socket
s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (s == INVALID_SOCKET)
return 1;
// connect to the http panel
int conn = connect(s, (SOCKADDR*)&sock, sizeof(sock));
if (conn < 0)
return 1;
// send http header
send(s, httprequest, lengthofrequest, 0);
// close socket
closesocket(s);
WSACleanup();
return 0;
}
PHP script
<?php
if(isset($_POST['name'], $_POST['password']))
{
echo $_POST['name'];
echo $_POST['password'];
}
?>
I would appreciate any help or guidance. Thanks.
You are mixing post and get
Use $_GET to access your data because your data is appended to the url
Try this:
<?php
if(isset($_GET['name'], $_GET['password']))
{
echo $_GET['name'];
echo $_GET['password'];
}
this should work but you should consider changing your request type to GET in the C code as well to make your code clear and simple
What you are doin here is ambiguous:
"POST /test.php?name=alex&password=secret HTTP/1.1\r\n"
Because you are sending get parameters using post and the post body is actually empty.
Also you should omit ?> at the end of your php script.
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I have a php script that creates an xml sitemap. At the end, I use
shell_exec('ping -c1 www.google.com/webmasters/tools/ping?sitemap=sitemapurl');
to submit the updated sitemap to Google Webmaster tools.
Having read the Google documentation, I'm unsure whether I need to do this each time or not. Entering the link in the code manually, results in a success page from google, but using the ping command I receive no confirmation. I would also like to know if there is any way of checking if the command has actually worked.
Here is a script to automatically submit your site map to google, bing/msn and ask:
/*
* Sitemap Submitter
* Use this script to submit your site maps automatically to Google, Bing.MSN and Ask
* Trigger this script on a schedule of your choosing or after your site map gets updated.
*/
//Set this to be your site map URL
$sitemapUrl = "http://www.example.com/sitemap.xml";
// cUrl handler to ping the Sitemap submission URLs for Search Engines…
function myCurl($url){
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
return $httpCode;
}
//Google
$url = "http://www.google.com/webmasters/sitemaps/ping?sitemap=".$sitemapUrl;
$returnCode = myCurl($url);
echo "<p>Google Sitemaps has been pinged (return code: $returnCode).</p>";
//Bing / MSN
$url = " https://www.bing.com/webmaster/ping.aspx?siteMap=".$sitemapUrl;
$returnCode = myCurl($url);
echo "<p>Bing / MSN Sitemaps has been pinged (return code: $returnCode).</p>";
//ASK
$url = "http://submissions.ask.com/ping?sitemap=".$sitemapUrl;
$returnCode = myCurl($url);
echo "<p>ASK.com Sitemaps has been pinged (return code: $returnCode).</p>";
you can also send yourself an email if the submission fails:
function return_code_check($pingedURL, $returnedCode) {
$to = "webmaster#yoursite.com";
$subject = "Sitemap ping fail: ".$pingedURL;
$message = "Error code ".$returnedCode.". Go check it out!";
$headers = "From: hello#yoursite.com";
if($returnedCode != "200") {
mail($to, $subject, $message, $headers);
}
}
Hope that helps
Since commands like shell_exec(), exec(), passthru() etc. are blocked by many hosters, you should use curl and check for a response code of 200.
You could also use fsockopen if curl is not available. I'm going to check for the code snippet and update the answer when I found it.
UPDATE:
Found it. I knew I used it somewhere. The funny coincedence: It was in my Sitemap class xD
You can find it here on github: https://github.com/func0der/Sitemap. It is in the Sitemap\SitemapOrg class.
There is a also an example for the curl call implemented.
Either way, here is the code for stand alone implementation.
/**
* Call url with fsockopen and return the response status.
*
* #param string $url
* The url to call.
*
* #return mixed(boolean|int)
* The http status code of the response. FALSE if something went wrong.
*/
function _callWithFSockOpen($url) {
$result = FALSE;
// Parse url.
$url = parse_url($url);
// Append query to path.
$url['path'] .= '?'.$url['query'];
// Setup fsockopen.
$port = 80;
$timeout = 10;
$fso = fsockopen($url['host'], $port, $errno, $errstr, $timeout);
// Proceed if connection was successfully opened.
if ($fso) {
// Create headers.
$headers = 'GET ' . $url['path'] . 'HTTP/1.0' . "\r\n";
$headers .= 'Host: ' . $url['host'] . "\r\n";
$headers .= 'Connection: closed' . "\r\n";
$headers .= "\r\n";
// Write headers to socket.
fwrite($fso, $headers);
// Set timeout for stream read/write.
stream_set_timeout($fso, $timeout);
// Use a loop in case something unexpected happens.
// I do not know what, but that why it is unexpected.
while (!feof($fso)){
// 128 bytes is getting the header with the http response code in it.
$buffer = fread($fso, 128);
// Filter only the http status line (first line) and break loop on success.
if(!empty($buffer) && ($buffer = substr($buffer, 0, strpos($buffer, "\r\n")))){
break;
}
}
// Match status.
preg_match('/^HTTP.+\s(\d{3})/', $buffer, $match);
// Extract status.
list(, $status) = $match;
$result = $status;
}
else {
// #XXX: Throw exception here??
}
return (int) $result;
}
If you guys find any harm or improvement in this code, do not hesitate to open up a ticket/pull request on GitHub, please. ;)
Simplest solution: file_get_contents("https://www.google.com/webmasters/tools/ping?sitemap={$sitemap}");
That will work on every major hosting provider. If you want optional error reporting, here's a start:
$data = file_get_contents("https://www.google.com/webmasters/tools/ping?sitemap={$sitemap}");
$status = ( strpos($data,"Sitemap Notification Received") !== false ) ? "OK" : "ERROR";
echo "Submitting Google Sitemap: {$status}\n";
As for how often you should do it, as long as your site can handle the extra traffic from Google's bots without slowing down, you should do this every time a change has been made.
I have a working websocket Server (python + Tornado) which accepts Connections on port 8973. I can connect by a easy JavaScript / jquery instruction like:
ws = new WebSocket("ws://192.168.41.170:8973/rt");
But I need my php script to connect to this websocket server and send a message. I tried all most available solutions like
https://github.com/lemmingzshadow/php-websocket/
$host = '192.168.41.170'; //where is the websocket server
$port = 8973;
$local = "http://192.168.41.2/"; //url where this script run
$data = 'hello world!'; //data to be send
$head = "GET / HTTP/1.1"."\r\n".
"Upgrade: WebSocket"."\r\n".
"Connection: Upgrade"."\r\n".
"Origin: $local"."\r\n".
"Host: $host"."\r\n".
"Content-Length: ".strlen($data)."\r\n"."\r\n";
//WebSocket handshake
$sock = fsockopen($host, $port, $errno, $errstr, 2);
fwrite($sock, $head ) or die('error:'.$errno.':'.$errstr);
$headers = fread($sock, 2000);
fwrite($sock, "\x00$data\xff" ) or die('error:'.$errno.':'.$errstr);
$wsdata = fread($sock, 2000); //receives the data included in the websocket package "\x00DATA\xff"
fclose($sock);
But this all dont work. Has anybody a working code snippet? I dont need a php-websocket server! Thanks
I think your problem is in how you are packing the data. Without knowing which protocol you are trying to use, I can't tell you how to pack it! But, there is a working code snippet in one answer to this question.
I would like to create a batch script, to go through 20,000 links in a DB, and weed out all the 404s and such. How would I get the HTTP status code for a remote url?
Preferably not using curl, since I dont have it installed.
CURL would be perfect but since you don't have it, you'll have to get down and dirty with sockets. The technique is:
Open a socket to the server.
Send an HTTP HEAD request.
Parse the response.
Here is a quick example:
<?php
$url = parse_url('http://www.example.com/index.html');
$host = $url['host'];
$port = $url['port'];
$path = $url['path'];
$query = $url['query'];
if(!$port)
$port = 80;
$request = "HEAD $path?$query HTTP/1.1\r\n"
."Host: $host\r\n"
."Connection: close\r\n"
."\r\n";
$address = gethostbyname($host);
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_connect($socket, $address, $port);
socket_write($socket, $request, strlen($request));
$response = split(' ', socket_read($socket, 1024));
print "<p>Response: ". $response[1] ."</p>\r\n";
socket_close($socket);
?>
UPDATE: I've added a few lines to parse the URL
If im not mistaken none of the php built-in functions return the http status of a remote url, so the best option would be to use sockets to open a connection to the server, send a request and parse the response status:
pseudo code:
parse url => $host, $port, $path
$http_request = "GET $path HTTP/1.0\nHhost: $host\n\n";
$fp = fsockopen($host, $port, $errno, $errstr, $timeout), check for any errors
fwrite($fp, $request)
while (!feof($fp)) {
$headers .= fgets($fp, 4096);
$status = <parse $headers >
if (<status read>)
break;
}
fclose($fp)
Another option is to use an already build http client class in php that can return the headers without fetching the full page content, there should be a few open source classes available on the net...
This page looks like it has a pretty good setup to download a page using either curl or fsockopen, and can get the HTTP headers using either method (which is what you want, really).
After using that method, you'd want to check $output['info']['http_code'] to get the data you want.
Hope that helps.
You can use PEAR's HTTP::head function.
http://pear.php.net/manual/en/package.http.http.head.php