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fsockopen (PHP 3, PHP 4, PHP 5) fsockopen --
Open Internet or Unix domain socket connection
Descriptionresource fsockopen ( string target [, int port [, int &errno [, string &errstr [, float timeout]]]] )
Initiates a socket connection to the resource specified by
target. PHP supports
targets in the Internet and Unix domains as described in
Прил. O. A list of supported transports
can also be retrieved using stream_get_transports().
Замечание:
If you need to set a timeout for reading/writing data over the socket,
use stream_set_timeout(), as the timeout
parameter to fsockopen() only applies while
connecting the socket.
As of PHP 4.3.0, if you have compiled in OpenSSL support, you may
prefix the hostname with either
'ssl://' or 'tls://' to
use an SSL or TLS client connection over TCP/IP to connect
to the remote host.
fsockopen() returns a file pointer which may
be used together with the other file functions (such as
fgets(), fgetss(),
fwrite(), fclose(), and
feof()).
If the call fails, it will return FALSE and if the optional
errno and errstr
arguments are present they will be set to indicate the actual
system level error that occurred in the system-level
connect() call. If the value returned in
errno is 0 and the
function returned FALSE, it is an indication that the error
occurred before the connect() call. This is
most likely due to a problem initializing the socket. Note that
the errno and
errstr arguments will always be passed by
reference.
Depending on the environment, the Unix domain or the optional
connect timeout may not be available.
The socket will by default be opened in blocking mode. You can
switch it to non-blocking mode by using
stream_set_blocking().
Пример 1. fsockopen() Example |
<?php
$fp = fsockopen("www.example.com", 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)<br />\n";
} else {
$out = "GET / HTTP/1.1\r\n";
$out .= "Host: www.example.com\r\n";
$out .= "Connection: Close\r\n\r\n";
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
?>
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The example below shows how to retrieve the day and time
from the UDP service "daytime" (port 13) in your own machine.
Пример 2. Using UDP connection |
<?php
$fp = fsockopen("udp://127.0.0.1", 13, $errno, $errstr);
if (!$fp) {
echo "ERROR: $errno - $errstr<br />\n";
} else {
fwrite($fp, "\n");
echo fread($fp, 26);
fclose($fp);
}
?>
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| Внимание |
UDP sockets will sometimes appear to have opened without an error,
even if the remote host is unreachable. The error will only
become apparent when you read or write data to/from the socket.
The reason for this is because UDP is a "connectionless" protocol,
which means that the operating system does not try to establish
a link for the socket until it actually needs to send or receive data.
|
Замечание: При указании числового адреса IPv6
(например, fe80::1) вы должны заключать его в квадратные скобки. Например,
tcp://[fe80::1]:80.
Замечание: The timeout parameter was introduced in PHP 3.0.9 and
UDP support was added in PHP 4.
See also pfsockopen(),
stream_set_blocking(),
stream_set_timeout(), fgets(),
fgetss(), fwrite(),
fclose(), feof(), and
the Curl extension.
fsockopen
bimal dot das at maxartists dot com
07-Jun-2006 11:22
Here is how to POST a form action to a SSL server's cgi and retrieve output with pfsockopen
<?php
$host = gethostbyaddr($_SERVER['REMOTE_ADDR']);
$host = 'www.example.com';
$service_uri = '/cgi-bin/processACT';
$vars ='code=22&act=TEST';
$header = "Host: $host\r\n";
$header .= "User-Agent: PHP Script\r\n";
$header .= "Content-Type: application/x-www-form-urlencoded\r\n";
$header .= "Content-Length: ".strlen($vars)."\r\n";
$header .= "Connection: close\r\n\r\n";
$fp = pfsockopen("ssl://".$host, 443, $errno, $errstr);
if (!$fp) {
echo "$errstr ($errno)<br/>\n";
echo $fp;
} else {
fputs($fp, "POST $service_uri HTTP/1.1\r\n");
fputs($fp, $header.$vars);
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
}
?>
dmitry dot polushkin at gmail dot com
22-May-2006 05:45
If you want to GET/POST some page through the HTTP protocol and if you want to keep-alive your connection, you may have a problem with a loop-stuck. Here is hint how to solve it:
<?php
$fp = fsockopen ("www.php.net", 80, $errno, $errstr, 30);
if(!$fp) {
echo $errstr;
} else {
fwrite($fp, "GET / HTTP/1.1\r\nHost: www.php.net\r\nConnection: Keep-Alive\r\n\r\n");
$data = '';
while(!feof($fp)) {
$data .= fread($fp, 4096);
if(substr($data, -9)=="\r\n\r\n0\r\n\r\n") {
exit;
}
}
}
echo $data;
?>
leibwaechter at web dot de
05-May-2006 03:15
If you want to connect to a SSL server by HTTPS, you have to write
fsockopen('ssl://www.example.com', 443, $errno, $errstr, 30);
instead of
fsockopen('www.example.com', 443, $errno, $errstr, 30);
If have needed days to find that out.
yourpicture at hotpop dot com
04-May-2006 11:30
When your connection times out the server may issue Fatal error: Maximum execution time of 30 seconds exceeded in ...
To get around this try this method used with error handling and copied method for ping operation.
<?php
function Ping(){
$ProxyServer = "116.155.95.163";
$ProxyPort = 8080;
$timeout=10;
echo "Opening ProxyServer $ProxyServer<br>";
Set_Time_Limit(0); Ignore_User_Abort(True); $handle = fsockopen($ProxyServer, $ProxyPort,$errno,$errstr,$timeout);
if (!$handle){
echo "Failed to open ProxyServer $ProxyServer errno=$errno,errstr=$errstr<br>";
return 0;
}
else {
$status = socket_get_status($handle);
echo "Opened ProxyServer $ProxyServer<br>";
list($usec, $sec) = explode(" ", microtime(true));
$start=(float)$usec + (float)$sec;
$timeout=120;
stream_set_timeout($handle,$timeout);
ini_set('display_errors','0');
$write=fwrite($handle,"echo this\n");
if(!$write){
return 0;
}
echo "Try To Read<br>";
stream_set_blocking($handle,0);
fread($handle,1024);
fclose($handle);
echo "Read<br>";
ini_set('display_errors','1');
list($usec, $sec) = explode(" ", microtime(true));
$laptime=((float)$usec + (float)$sec)-$start;
if($laptime>$timeout)
return 0;
return $laptime;
}
}
function userErrorHandler($errno, $errmsg, $filename, $linenum, $vars)
{
echo "In Error Handler<br>";
return 0;
}
$old_error_handler = set_error_handler("userErrorHandler");
$time = Ping();
echo "Time=$time<br>";
echo "Done Checking<br>";
?>
Response Will be:
Opening ProxyServer 116.155.95.163
In Error Handler
Failed to open ProxyServer 116.155.95.163 errno=10060,errstr=A connection attempt failed
because the connected party did not properly respond after a period of time, or
established connection failed because connected host has failed to respond.
Time=0
Done Checking
Thanks to everyone for your source code examples.
AndE
Duukkis
27-Feb-2006 05:13
Lots of tries and lots of reading http-headers...
If you want to post $_POST vars and (in this case) one file named userfile to $remote_server and $remote_url.
<?php
$file_name = $_FILES['userfile']['name']; $tmp_name = $_FILES['userfile']['tmp_name']; $content_type = $_FILES['userfile']['type']; srand((double)microtime()*1000000);
$boundary = "---------------------".substr(md5(rand(0,32000)),0,10);
$header = "POST $remote_url HTTP/1.0\r\n";
$header .= "Host: $remote_server\r\n";
$header .= "Content-type: multipart/form-data, boundary=$boundary\r\n";
foreach($_POST AS $index => $value){
$data .="--$boundary\r\n";
$data .= "Content-Disposition: form-data; name=\"".$index."\"\r\n";
$data .= "\r\n".$value."\r\n";
$data .="--$boundary\r\n";
}
$data .= "--$boundary\r\n";
$content_file = join("", file($tmp_name));
$data .="Content-Disposition: form-data; name=\"userfile\"; filename=\"$file_name\"\r\n";
$data .= "Content-Type: $content_type\r\n\r\n";
$data .= "".$content_file."\r\n";
$data .="--$boundary--\r\n";
$header .= "Content-length: " . strlen($data) . "\r\n\r\n";
$fp = fsockopen($remote_server, 80);
fputs($fp, $header.$data);
fclose($fp);
?>
18-Feb-2006 12:49
Dante
28-Dec-2005 06:42
If you're using code like the manual's example, it is a good idea to keep using HTTP/1.0 instead of changing it to HTTP/1.1. Using HTTP/1.1 with fsockopen sometimes results in junk before and after the body content (but not in the headers).
This is not actually true, if you are using HTTP/1.1, you will most likely be receiving chunked data. The 'junk' that you are seeing is probably the size of the chunks in hex.
ittasks at gmail dot com
15-Feb-2006 04:02
login to the site prior to downloading page:
In some wierd situations site security is based on
ASPSESSION ID and where could be a
login asp script in one place, and the actual page with
information in another place.
for such cases you have to submit ( POST ) you login and
password first, when grab ASP session (and also some
cookies from response, and when use that ASP SESSION in
second request to the actual page: (i took some parts of
codes from other ppl)
<?php
$mycookies = GetCookies("www.yourdomain.com/login.login.asp",
"password=12345&username=your_username&submit=LOGIN&set=Y","");
$opts = array('http'=>array('method'=>"GET",
'header'=>"Accept-language: en\r\nCookie: ".$mycookies."\r\n" ));
$context = stream_context_create($opts);
$fp = fopen('http://www.yourdomain.com/coolpage.asp?p1=1&p2=23', 'r', false, $context);
fpassthru($fp);
$html = fread($fp, 1000000);
fclose($fp);
echo $html;
function PostPage($host,$query,$others=''){
$path=explode('/',$host);
$host=$path[0];
unset($path[0]);
$path='/'.(implode('/',$path));
$post="POST $path HTTP/1.1\r\nHost: $host\r\n";
$post.="Content-type: application/x-www-form-";
$post.="urlencoded\r\n${others}";
$post.="User-Agent: Mozilla 4.0\r\nContent-length: ";
$post.=strlen($query)."\r\nConnection: close\r\n\r\n$query";
$h=fsockopen($host,80);
fwrite($h,$post);
for($a=0,$r='';!$a;){
$b=fread($h,8192);
$r.=$b;
$a=(($b=='')?1:0);
}
fclose($h);
return $r;
}
function GetCookies($host,$query,$others=''){
$path=explode('/',$host);
$host=$path[0];
unset($path[0]);
$crlf = "\r\n";
$path='/'.(implode('/',$path));
$post="POST $path HTTP/1.1\r\nHost: $host\r\n";
$post.="Content-type: application/x-www-form-urlencoded\r\n${others}";
$post.="User-Agent: Mozilla 4.0\r\nContent-length: ";
$post.=strlen($query)."\r\nConnection: close\r\n\r\n$query";
$h=fsockopen($host,80);
fwrite($h,$post);
$r="";
for($a=0;!$a;){
$b=fread($h,512);
echo $b;
$r.=$b;
$gotSession=strpos($r,"ASPSESSION");
if($gotSession)
if(strpos($r, $crlf . $crlf,$gotSession)>0) break;
$a=(($b=='')?1:0);
}
fclose($h);
$arr = split("Set-Cookie:",$r);
$AllCookies="";$count=1;
while ($count < count($arr)) {
$AllCookies.=substr($arr[$count].";",
0,strpos($arr[$count].";",";")+1);
$count++;}
return $AllCookies;
}
?>
It's not optimized , but i hope someone might find it usefull.
Best Regards
DRY_GIN
na8ur
15-Jan-2006 04:41
if you send some header information to any server eg. sending cookie data, don't forget to have \r\n\r\n (double new line) at the end of your header data.
davem
05-Jan-2006 09:25
For data returned as "chunked" you cannot simply loop through the file with fgets and return a correct response.
This function has worked for me, any improvements welcome:
//parse response text out of chunked response
function ParseChunked($response)
{
$response = explode("\r\n",$response);
for($i=0; $i<count($response); $i++)
if(hexdec($response[$i])==strlen($response[$i+1]))
$return.=$response[++$i];
return $return;
}
Dante
27-Dec-2005 12:42
If you're using code like the manual's example, it is a good idea to keep using HTTP/1.0 instead of changing it to HTTP/1.1. Using HTTP/1.1 with fsockopen sometimes results in junk before and after the body content (but not in the headers).
SysCo/al - developer [at] sysco[dot] ch
24-Dec-2005 05:41
We have implemented a Syslog class in PHP following the RFC 3164 rules. Using this class, it is possible to send syslog messages to external servers.
We use this class for example to log information, to synchronize some processes or to launch external "threads".
Class abstract, full class implementation can be found at http://developer.sysco.ch/php/
<?php
class Syslog
{
var $_facility; var $_severity; var $_hostname; var $_fqdn;
var $_ip_from;
var $_process;
var $_content;
var $_msg;
var $_server; var $_port; var $_timeout; function Send($server = "", $content = "", $timeout = 0)
{
$actualtime = time();
$month = date("M", $actualtime);
$day = substr(" ".date("j", $actualtime), -2);
$hhmmss = date("H:i:s", $actualtime);
$timestamp = $month." ".$day." ".$hhmmss;
$pri = "<".($this->_facility*8 + $this->_severity).">";
$header = $timestamp." ".$this->_hostname;
$msg = $this->_process.": ".$this->_fqdn." ".$this->_ip_from." ".$this->_content;
$message = substr($pri.$header." ".$msg, 0, 1024);
$fp = fsockopen("udp://".$this->_server, $this->_port, $errno, $errstr, $this->_timeout);
if ($fp)
{
fwrite($fp, $message);
fclose($fp);
$result = $message;
}
else
{
$result = "ERROR: $errno - $errstr";
}
return $result;
}
?>
Example
<?php
require_once('syslog.php');
$syslog = new Syslog();
$syslog->Send('192.168.0.12', 'My first PHP syslog message');
?>
sivann at cs dot ntua dot gr
09-Dec-2005 07:40
This is an ident request example. If your client is running identd your real username will be known by the server.
It is also usefull to identify people bypassing IP ACLs by using SOCKS proxy and dynamic IP forwarding. If the socks proxy server uses ident (most unices do) you will know his real username.
For more information see RFC1413
Timeout of 2 seconds in the example may not be enough.
<?
error_reporting(E_ALL);
$remip = $HTTP_SERVER_VARS['REMOTE_ADDR'];
$remport = $HTTP_SERVER_VARS['REMOTE_PORT'];
ob_implicit_flush();
$fp = fsockopen($remip, 113, $errno, $errstr, 2);
if (!$fp) {
echo "$errstr ($errno)<br>\n";
exit;
}
else {
$out = "$remport, 80\r\n";
fwrite($fp, $out);
$answer=fgets($fp, 128);
}
fclose($fp);
$ansparts=explode(":",$answer);
$user=chop($ansparts[3]);
echo "You are $user@$remip:$remport";
?>
Kiki_EF
27-Oct-2005 12:20
Additional ICQ status request over proxy
<?php
function icq_uin($uin)
{
if (! is_numeric($uin))
return false;
$proxy_name = 'proxy.mydomain.de';
$proxy_port = 8080;
$proxy_user = "";
$proxy_pass = "";
$proxy_cont = '';
$request_url = "http://status.icq.com/online.gif?icq=$uin";
$proxy_fp = fsockopen($proxy_name, $proxy_port);
if (!$proxy_fp)
return false;
fputs($proxy_fp, "GET $request_url HTTP/1.0\r\nHost: $proxy_name\r\n");
fputs($proxy_fp, "Proxy-Authorization: Basic ". base64_encode ("$proxy_user:$proxy_pass")."\r\n\r\n");
while(!feof($proxy_fp)){
$proxy_cont .= fread($proxy_fp,4096);
}
fclose($proxy_fp);
$proxy_cont = substr($proxy_cont, strpos($proxy_cont,"\r\n\r\n")+4);
if (strstr($proxy_cont, 'online1'))
return 'online';
if (strstr($proxy_cont, 'online0'))
return 'offline';
if (strstr($proxy_cont, 'online2'))
return 'disabled';
}
echo "User is ".icq_uin(123456789012345);
?>
Based on http://de2.php.net/manual/de/function.fopen.php#53090
Thanx
alex at renesource dot lv
29-Sep-2005 12:52
Setting up SSL connection to server that requires client certificate (https).
Function fsockopen() has 5 arguments only in PHP5. There is sixth undocumented argument in PHP4 fsockopen() function . Therefore code in note 'alex at renesource dot lv 16-Mar-2004 09:07' will work with PHP4 only.
You can use the following code to post request to HTTPS server that requires client certificate to establish SSL connection:
<?php
$host = 'ssl.host.com';
$service_uri = '/some/service/address';
$local_cert_path = '/path/to/keys.pem';
$local_cert_passphrase = 'pass_to_access_keys';
$request_data = '<some><xml>data</xml></some>';
$opts = Array();
$header = "Host: $host\\r\\n";
$header .= "User-Agent: PHP Script\\r\\n";
$header .= "Content-Type: text/xml\\r\\n";
$header .= "Content-Length: ".strlen($request_data)."\\r\\n";
$header .= "Connection: close";
$opts['http']['method'] = 'POST';
$opts['http']['header'] = $header;
$opts['http']['content'] = $request_data;
$opts['ssl']['local_cert'] = $local_cert_path;
$opts['ssl']['passphrase'] = $local_cert_passphrase;
$context = stream_context_create($opts);
$filename = 'https://'.$host.$service_uri;
$content = file($filename, false, $context);
$response_data = implode('', $content);
?>
robin at pozytron dot com
21-Aug-2005 03:38
I have found, when using fsockopen() and the POST method, that using HTTP/1.1 is VERY significantly slower than HTTP/1.0 (at least for the server I'm querying, an Orion-based server). Also, using cURL tended to be faster than fsockopen(), though only slightly. For example, here was a recent set of data (for the same exact request in each case):
cURL: 4.2sec
fsockopen() HTTP/1.0: 4.9sec
fsockopen() HTTP/1.1: 19.9sec (!)
I'm not sure why this was occurring. Perhaps it has something to do with the Orion server, which I have little experience with. However, it was not a fluke, and I double-checked the code to make sure there were no errors.
EDITORS NOTE: HTTP/1.1 uses persistent connection causing this delay. Use "Connection: close" header to disable it.
l0gic at l0gic dot net
12-Aug-2005 11:54
After a little experimenting, I worked out how to reliably handle chunked HTTP/1.1 data. The following code assumes a connection has already been opened as $fp, and the response header has been read into the array $header. A loop is used to read data until the entire chunk length has been read, due to fsockopen()'s tendency to stop reading when a new packet is received. Please note that I have not put this code through thorough testing; this is merely to demonstrate the methodology.
if (isset($header['Transfer-Encoding'])) {
// Read the length of the current chunk
while ($chunk_length = hexdec(fgets($fp))) {
// Initialize counter and buffer
$read_length = 0;
$data = NULL;
// Read $chunk_length bytes of data
while ($read_length < $chunk_length) {
$data .= fread($fp, $chunk_length - $read_length);
$read_length = strlen($data);
}
// Output the data read
echo $data;
}
}
dna at revold-design dot de
10-Aug-2005 05:04
Something useful for ICQ:
<?php
$icquin = "197829943";
function GetICQ($uin) {
if (!is_numeric($uin)) return FALSE;
$fp = fsockopen('status.icq.com', 80, &$errno, &$errstr, 8);
if (!$fp) {
return "N/A";
}
else {
$request = "HEAD /online.gif?icq=$uin HTTP/1.0\r\n"
."Host: web.icq.com\r\n"
."Connection: close\r\n\r\n";
fputs($fp, $request);
do {
$response = fgets($fp, 1024);
}
while (!feof($fp) && !stristr($response, 'Location'));
fclose($fp);
if (strstr($response, 'online1')) return 'Online';
if (strstr($response, 'online0')) return 'Offline';
if (strstr($response, 'online2')) return 'N/A';
return FALSE;
}
}
echo GetICQ($icquin);
?>
Jeremy
05-Jul-2005 11:52
The only think wrong with richard burton's code as regarding apache is that
$byte != "\\r" should be
$byte == "\r"
suma at fairrank dot noadsplease dot de
31-May-2005 01:51
To retrieve a page from a HTTP server over a SSL connection (HTTPS), execute this script with an SSL enabled build of PHP, and enter your data.
$fp = pfsockopen("ssl://yourwebsite.com", 443, $errno, $errstr);
if (!$fp) {
echo "$errstr ($errno)<br/>\n";
echo $fp;
} else {
fputs($fp, "GET /path/page.php HTTP/1.1\r\n");
fputs($fp, "Host: yourwebsite.com\r\n");
fputs($fp, "Authorization: Basic ".base64_encode("username:password")."\r\n");
fputs($fp, "Connection: close\r\n\r\n");
fwrite($fp, $out);
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
mzvarik at gmail dot com
23-May-2005 01:09
If you just want to get the page content it's better to use fopen instead of fsockopen... I did a benchmark and it's faster... depends on how big is the content, getting it using fopen can be sometimes even 2x faster.
richard dot lajaunie at cote-azur dot cci dot fr
19-May-2005 12:10
<?
if ( array_key_exists(1, $argv) ){
$cfgServer = $argv[1];
}else{
echo "ex: 'php test.php 10.0.0.0' \n";
exit;
}
$cfgPort = 23; $cfgTimeOut = 10;
$usenet = fsockopen($cfgServer, $cfgPort, $errno, $errstr), $cfgTimeOut);
if(!$usenet){
echo "Connexion failed\n";
exit();
}else{
echo "Connected\n";
fputs ($usenet, "password\r\n");
fputs ($usenet, "en\r\n");
fputs ($usenet, "password\r\n");
fputs ($usenet, "sh mac-address-table\r\n");
fputs ($usenet, " "); $j = 0;
while ($j<16){
fgets($usenet, 128);
$j++;
}
stream_set_timeout($usenet, 2); $j = 0;
while (!feof($usenet)){
$ret = fgets($usenet, 128);
$ret = str_replace("\r", '', $ret);
$ret = str_replace("\n", "", $ret);
if (ereg("FastEthernet", $ret)){
echo "$ret \n";
}
if (ereg('--More--', $ret) ){
fputs ($usenet, " "); }
$info = stream_get_meta_data($usenet);
if ($info['timed_out']) {
$j++;
}
if ($j >2){
fputs ($usenet, "lo");
break;
}
}
}
echo "End.\r\n";
?>
saul dot dobney at dobney dot com
19-Apr-2005 08:40
If you are using fsockopen to access webpage, but come across a redirect (Location: ) in the header and want to find and follow the redirect as in this snippet:
while (!feof($fp)) {
$line=fgets($fp, 1024);
if (stristr($line,"location:")!="") {
$redirect=preg_replace("/location:/i","",$line);
}
}
Then don't forget to trim($redirect) before trying to follow this new link as $redirect actually has a \r\n on the end of it and won't give you a valid path in the next iteration otherwise. A six hour bug.
Saul Dobney
nospam at cronjob dot de
17-Apr-2005 05:06
Be careful if you open a lot of sockets in one php-file!
I had a script which checked a lot of domains and opened sockets to the whois-server. Even that I closed the connections after I checked a domain (fclose), the sockets seemed to stay open. After a while (about 1000 connections) the php-script couldn't open any more sockets.
It took a while to fix this problem. I did this by writing a script which started the check-scripts with wget (or lynx). I started 5 scripts parallel and just checked 20 domains. After that new 5 scripts where opened. That helped me not to open too many sockets in one php-file because when a php-script ends, all open sockets are closed.
Example:
start.php:
<?php
ignore_user_abort(true);
for($i=0; $i<100; $i++) {
echo $i."- "; flush();
$exec_string = 'lynx http://domain.tld/whois.php &';
$output = `$exec_string`;
sleep(10);
$exec_string = 'killall lynx';
$output = `$exec_string`;
}
?>
whois.php:
<?php
ignore_user_abort(true);
for($i=0; $i<50; $i++) {
fsockopen(whois.server...);
}
?>
Hope this'll help some people!
ahauk at NO-SPAM dot synergynt dot net
28-Mar-2005 02:38
The following script will login to a POP3 account using the username, password and server name provided via a standard form; determine the amount of messages using a binary search; then purge all messages.
<?php
$server = $_POST["server"];
$user = $_POST["user"];
$pass = $_POST["pass"];
$count = 1;
$low = 0;
$mid = 0;
$high = 100000;
$connection = fsockopen($server, 110, $errno, $errstr, 30);
if(!$connection) {
print "Connect Failed: $errstr ($errno)";
} else {
$output = fgets($connection, 128);
fputs($connection, "user $user\n");
$output = fgets($connection, 128);
fputs($connection, "pass $pass\n");
$output = fgets($connection, 128);
while($low < $high - 1) {
$mid = floor(($low + $high) / 2);
fputs($connection, "list $mid\n");
$output = fgets($connection, 128);
$subout = substr($output, 0, 4);
if($subout == "+OK ") {
$low = $mid;
continue;
}
elseif($subout == "-ERR") {
$high = $mid;
continue;
} else {
break;
print "An error has occurred. Please try again.";
}
}
$limit = $mid - 1;
while($count <= $limit) {
fputs($connection, "dele $count\n");
fgets($connection, 128);
$count = $count + 1;
}
fputs($connection, "quit\n");
}
fclose($connection);
print "Successfully removed $limit messages.";
?>
JMPZ
28-Feb-2005 09:04
I had a similar problem to a previous poster with terrible performance. I tried changing to HTTP 1.0 but that didn't fix it. I then removed the line:
connection: keep-alive
This fixed it. What took 13 seconds now takes 1.
redvader at yandex dot ru
25-Feb-2005 07:34
here are some fixes to code by
edwin at bitstorm dot org
they might seem silly, but still useful in some cases
<?php
function fetchURL( $url ) {
$url_parsed = parse_url($url);
$host = $url_parsed["host"];
$port = $url_parsed["port"];
if ($port==0)
$port = 80;
$path = $url_parsed["path"];
if (empty($path))
$path="/";
if (empty($host)):
$host="www.somesite.com";
$path="/404.shtml";
endif;
if ($url_parsed["query"] != "")
$path .= "?".$url_parsed["query"];
$out = "GET $path HTTP/1.0\r\nHost: $host\r\n\r\n";
$fp = fsockopen($host, $port, $errno, $errstr, 30);
fwrite($fp, $out);
$body = false;
while (!feof($fp)) {
echo fgets($fp, 128);
}
fclose($fp);
return $in;
}
fetchURL($address);
?>
dante at dantecubed dot com
23-Feb-2005 04:00
You may be able to speed this function up by using an IP address instead of a domain. PHP uses getHostByAddr internally in this function anyway, so you can save a step in the function process.
konrad dot meyer at gmail dot com
12-Feb-2005 01:34
The documentation example is of a GET request. I have found POST documentation to be lacking, and here's a function to easily simulate submitting form data:
<?php
function post($host,$query,$others=''){
$path=explode('/',$host);
$host=$path[0];
unset($path[0]);
$path='/'.(implode('/',$path));
$post="POST $path HTTP/1.1\r\nHost: $host\r\nContent-type: application/x-www-form-urlencoded\r\n${others}User-Agent: Mozilla 4.0\r\nContent-length: ".strlen($query)."\r\nConnection: close\r\n\r\n$query";
$h=fsockopen($host,80);
fwrite($h,$post);
for($a=0,$r='';!$a;){
$b=fread($h,8192);
$r.=$b;
$a=(($b=='')?1:0);
}
fclose($h);
return $r;
}
?>
edwin at bitstorm dot org
02-Dec-2004 05:50
Here's a function to just fetch the contents behind an URL.
<?php
function fetchURL( $url ) {
$url_parsed = parse_url($url);
$host = $url_parsed["host"];
$port = $url_parsed["port"];
if ($port==0)
$port = 80;
$path = $url_parsed["path"];
if ($url_parsed["query"] != "")
$path .= "?".$url_parsed["query"];
$out = "GET $path HTTP/1.0\r\nHost: $host\r\n\r\n";
$fp = fsockopen($host, $port, $errno, $errstr, 30);
fwrite($fp, $out);
$body = false;
while (!feof($fp)) {
$s = fgets($fp, 1024);
if ( $body )
$in .= $s;
if ( $s == "\r\n" )
$body = true;
}
fclose($fp);
return $in;
}
?>
Simon Riget at paragi.com
17-Nov-2004 08:25
Ping from PHP script. (Without system call)
This is of cause not a real ping since there is no support for ICMP. So it can't send a packet and get it back. But the important thing is to get a response from the server, even if it is only a ICMP error message. That way it verifies the servers existens and calculate the round trip time, which is the essential function of ping. It work well on all servers I have tried, with the echo service running.
<?
$host='www.php.com';
$timeout=2;
$handle=fsockopen('ddp://'.$host, 7, $errno, $errstr, $timeout);
if (!$handle)
echo "$errstr ($errno)<br>\r\n";
else {
stream_set_timeout($handle, $timeout);
for($i=0;$i<3;$i++){
list($usec, $sec) = explode(" ", microtime(true));
$start=(float)$usec + (float)$sec;
$write=fwrite($handle,"echo this\n");
if(!$write){
echo "Error in writing to socked<br>\r\n";
break;
}
echo 'Send packet to '.$host;
fread($handle,1024);
list($usec, $sec) = explode(" ", microtime(true));
$laptime=((float)$usec + (float)$sec)-$start;
if($laptime>$timeout)
echo " : No reply<br>\r\n";
else
echo " : Round trip = ".round($laptime,3)." s<br>\r\n";
}
fclose($handle);
}
?>
michiel at parse dot nl
25-Oct-2004 04:42
The following snippet allows you to retrieve the title oa page.
Great for rewriting auto-url detectors to display the actual title rather then http://...
<?
echo get_url_title("cal.php?id=409");
function get_url_title($url, $timeout = 2)
{
$url = parse_url($url);
if(!in_array($url['scheme'],array('','http')))
return;
$fp = fsockopen ($url['host'], ($url['port'] > 0 ? $url['port'] : 80), $errno, $errstr, $timeout);
if (!$fp)
{
return;
}
else
{
fputs ($fp, "GET /".$url['path'].($url['query'] ? '?'.$url['query'] : '')." HTTP/1.0\r\nHost: ".$url['host']."\r\n\r\n");
$d = '';
while (!feof($fp))
{
$d .= fgets ($fp,2048);
if(preg_match('~(</head>|<body>|(<title>\s*(.*?)\s*</title>))~i', $d, $m))
break;
}
fclose ($fp);
return $m[3];
}
}
?>
elemental21 at hotmail dot com
08-Oct-2004 07:23
Found this php class to use telnet from here:
http://cvs.adfinis.ch/cvs.php/phpStreamcast/telnet.class.php
There's no docs and a lot of it's in french though so maybe it will help
someone to have my working code. This code is used to telnet into a
pix and execute the "shun" command.
//-------telnet.class.php usage example---------
$telnet = new telnet;
// Next line is for logging.
//By default you need to create a folder called /log and give it the
//rights your webserver is running.
$telnet->setLog(1,"mylog");
$telnet->set_host("myhost.myplace.com");
//You need to set the prompt to what you know its going to be,
//then call wait_prompt...which waits for what you just set
$telnet->set_prompt("Password: ");
$telnet->connect();
$telnet->wait_prompt();
$telnet->write("mypassword");
//Have to change the prompt...in my example this is the
//prompt that a pix will change to after loggin in.
$telnet->set_prompt("pix> ");
$telnet->wait_prompt();
$telnet->write("en");
$telnet->set_prompt("Password: ");
$telnet->wait_prompt();
$telnet->write("enable_password");
//When you go into enable mode in a pix the prompt changes
$telnet->set_prompt("pix# ");
$telnet->wait_prompt();
$telnet->write("shun " . $shun_address);
$telnet->wait_prompt();
$telnet->write("clear xlate");
$telnet->wait_prompt();
$telnet->write("write mem");
$telnet->wait_prompt();
$telnet->write("exit");
$telnet->disconnect();
mikebNOSPAM at xamo dot com
29-Sep-2004 04:17
Hey, why were my comments regarding fsockopen connection timeouts taken out? I'm sure they would have been very useful to other users.
fsockopen (on FreeBSD and probably OpenBSD) will ignore the connection timeout parameter, and hang for several minutes if it can't connect for a variety of reasons (no DNS resolve, host down, extreme firewall setups). Use curl instead until a solution is found (i spent days on this issue)
bjorn (at) ahusonline dot com
21-May-2004 04:50
Modified code for telnet to work with not-so-fast connections.
The old version garbles the output and/or cuts the output before
it is finished when output is above about 100 lines.
<?php
$header1=chr(0xFF).chr(0xFB).chr(0x1F).chr(0xFF).chr(0xFB).
chr(0x20).chr(0xFF).chr(0xFB).chr(0x18).chr(0xFF).chr(0xFB).
chr(0x27).chr(0xFF).chr(0xFD).chr(0x01).chr(0xFF).chr(0xFB).
chr(0x03).chr(0xFF).chr(0xFD).chr(0x03).chr(0xFF).chr(0xFC).
chr(0x23).chr(0xFF).chr(0xFC).chr(0x24).chr(0xFF).chr(0xFA).
chr(0x1F).chr(0x00).chr(0x50).chr(0x00).chr(0x18).chr(0xFF).
chr(0xF0).chr(0xFF).chr(0xFA).chr(0x20).chr(0x00).chr(0x33).
chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0x2C).chr(0x33).
chr(0x38).chr(0x34).chr(0x30).chr(0x30).chr(0xFF).chr(0xF0).
chr(0xFF).chr(0xFA).chr(0x27).chr(0x00).chr(0xFF).chr(0xF0).
chr(0xFF).chr(0xFA).chr(0x18).chr(0x00).chr(0x58).chr(0x54).
chr(0x45).chr(0x52).chr(0x4D).chr(0xFF).chr(0xF0);
$header2=chr(0xFF).chr(0xFC).chr(0x01).chr(0xFF).chr(0xFC).
chr(0x22).chr(0xFF).chr(0xFE).chr(0x05).chr(0xFF).chr(0xFC).chr(0x21);
$fp=fsockopen("127.0.0.1",23);
fputs($fp,$header1);
usleep(125000);
fputs($fp,$header2);
usleep(125000);
fputs($fp,"user\r");
usleep(125000);
fputs($fp,"users.pass\r");
usleep(125000);
fputs($fp,"su\r");
usleep(125000); fputs($fp,"root.pass\r");
fputs($fp,"ifconfig\r");
fputs($fp,"echo year telnet php connect works|wall\r");
usleep(125000);
do
{
$output.=fread($fp, 80); $stat=socket_get_status($fp);
}
while($stat["unread_bytes"]);
$output = str_replace("\n", "<br>", $output);
echo $output;
fclose($fp);
?>
alex at renesource dot lv
16-Mar-2004 11:07
Set up SSL connection to server that requires client certificate:
Convert client certificate from *.pfx (pkcs12) into*.pem with openssl (if needed):
> openssl pkcs12 -in keys.pfx -out keys.pem
PHP:
<?php
$context = stream_context_create();
$result = stream_context_set_option($context, 'ssl', 'local_cert', '/path/to/keys.pem');
$result = stream_context_set_option($context, 'ssl', 'passphrase', 'pass_to_access_keys');
$socket = fsockopen('ssl://'.$host, 443, $errno, $errstr, 30, $context);
?>
jack at jtr dot de
16-Feb-2004 02:05
Here is a function for testing a website/URI for availability:
<?php
function url_validate( $link )
{
$url_parts = @parse_url( $link );
if ( empty( $url_parts["host"] ) ) return( false );
if ( !empty( $url_parts["path"] ) )
{
$documentpath = $url_parts["path"];
}
else
{
$documentpath = "/";
}
if ( !empty( $url_parts["query"] ) )
{
$documentpath .= "?" . $url_parts["query"];
}
$host = $url_parts["host"];
$port = $url_parts["port"];
if (empty( $port ) ) $port = "80";
$socket = @fsockopen( $host, $port, $errno, $errstr, 30 );
if (!$socket)
{
return(false);
}
else
{
fwrite ($socket, "HEAD ".$documentpath." HTTP/1.0\r\nHost: $host\r\n\r\n");
$http_response = fgets( $socket, 22 );
if ( ereg("200 OK", $http_response, $regs ) )
{
return(true);
fclose( $socket );
} else
{
return(false);
}
}
}
?>
sir_reality2001 at yahoo dot com
13-Feb-2004 09:45
<?
$host='targethost';
$port=80;
$path='/test/socket/file_upload/receive_files.php';
$file_array[0] = "dingoboy.gif"; $file_array[1] = "dingoboy2.gif"; $file_array[2] = "dingoboy3.gif"; $content_type = "image/gif"; srand((double)microtime()*1000000);
$boundary = "---------------------------".substr(md5(rand(0,32000)),0,10);
$data = "--$boundary";
for($i=0;$i<count($file_array);$i++){
$content_file = join("", file($file_array[$i]));
$data.="
Content-Disposition: form-data; name=\"file".($i+1)."\"; filename=\"$file_array[$i]\"
Content-Type: $content_type
$content_file
--$boundary";
}
$data.="--\r\n\r\n";
$msg =
"POST $path HTTP/1.0
Content-Type: multipart/form-data; boundary=$boundary
Content-Length: ".strlen($data)."\r\n\r\n";
$result="";
$f = fsockopen($host, $port);
fputs($f,$msg.$data);
while (!feof($f)) $result .= fread($f,32000);
fclose($f);
?>
xbiron at citenet dot net
24-Jan-2004 11:42
Header to declare cookie :
<?php
$header.= "Cookie: name_cookie1=value_cookie1; name_cookie2=value_cookie2\r\n";
?>
Header to create cookie :
<?php
$header.= "Set-Cookie: name_cookie=value_cookie; path=\; Friday, 13-Jan-03 12:00:00 GMT\r\n";
?>
rob at robhulme dot com
23-Jan-2004 09:17
Just a note to everyone who is using fsockopen and fread / fgets for a HTTP connection.
Unless you specify "Connection: Close" in your headers you will need to wait for the socket to time out before feof($streamPointer) to return true.
This has wasted 2 days of my time, grr!
-Rob
asalamanca at redcetus dot com
18-Nov-2003 11:27
This is a very fast program for test a form or link (many times).
<?php
$repeat = 100; $timeout = 100; $size = 16; $server = '64.246.30.37'; $host = 'www.foo.com'; $target = '/poll/answer.asp'; $referer = 'http://www.test.com/'; $port = 80;
$gets = array ( 'get_field_1' => 'somevalue',
'get_field_2' => 'somevalue' );
$posts = array ( 'post_field_1' => 'somevalue',
'post_field_2' => 'somevalue' );
$method = "GET";
if ( is_array( $gets ) ) {
$getValues = '?';
foreach( $gets AS $name => $value ){
$getValues .= urlencode( $name ) . "=" . urlencode( $value ) . '&';
}
$getValues = substr( $getValues, 0, -1 );
} else {
$getValues = '';
}
if ( is_array( $posts ) ) {
foreach( $posts AS $name => $value ){
$postValues .= urlencode( $name ) . "=" . urlencode( $value ) . '&';
}
$postValues = substr( $postValues, 0, -1 );
$method = "POST";
} else {
$postValues = '';
}
$request = "$method $target$getValues HTTP/1.1\r\n";
$request .= "Host: $host\r\n";
$request .= 'User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) ';
$request .= "Gecko/20021204\r\n";
$request .= 'Accept: text/xml,application/xml,application/xhtml+xml,';
$request .= 'text/html;q=0.9,text/plain;q=0.8,video/x-mng,image/png,';
$request .= "image/jpeg,image/gif;q=0.2,text/css,*/*;q=0.1\r\n";
$request .= "Accept-Language: en-us, en;q=0.50\r\n";
$request .= "Accept-Encoding: gzip, deflate, compress;q=0.9\r\n";
$request .= "Accept-Charset: ISO-8859-1, utf-8;q=0.66, *;q=0.66\r\n";
$request .= "Keep-Alive: 300\r\n";
$request .= "Connection: keep-alive\r\n";
$request .= "Referer: $referer\r\n";
$request .= "Cache-Control: max-age=0\r\n";
if ( $method == "POST" ) {
$lenght = strlen( $postValues );
$request .= "Content-Type: application/x-www-form-urlencoded\r\n";
$request .= "Content-Length: $lenght\r\n";
$request .= "\r\n";
$request .= $postValues;
}
for ( $i = 0; $i < $repeat; $i++ ) {
$socket = fsockopen( $server, $port, $errno, $errstr, $timeout );
fputs( $socket, $request );
if ( $size > 0 ) {
$ret = fgets( $socket, $size );
} else {
$ret = '';
while ( !feof( $socket ) ) {
$ret .= fgets( $socket, 4096 );
}
}
fclose( $socket );
echo "<hr> $i -- $content $ret";
}
?>
Alejandro Salamanca
RedCetus.com
terminal
23-Oct-2003 12:30
Try this.
Use AUTH when necessary.
Read RFC 821 when having problems.
<?php
$handle = smtp_connect($smtp_server, 25, 30, 1, 1, 1);
echo smtp_command($handle, "EHLO $domain\r\n", 1, 1);
echo smtp_command($handle, "MAIL FROM:<$from_mail>\r\n", 1, 1);
echo smtp_command($handle, "RCPT TO:<$to_mail>\r\n", 1, 1);
echo smtp_command($handle, "DATA\r\n", 1, 1);
echo smtp_command($handle, "$message\r\n.\r\n", 1, 1);
echo smtp_command($handle, "QUIT\r\n", 1, 1);
smtp_close($handle);
function smtp_connect($host, $port, $timeout=30, $echo_command=False, $echo_response=False, $nl2br=False)
{
$errno = 0;
$errstr = 0;
if($echo_command)
{
if($nl2br) { echo nl2br("CONNECTING TO $host\r\n"); }
else { echo "CONNECTING TO $host\r\n"; }
}
$handle = fsockopen($host, $port, $errno, $errstr, $timeout);
if(!$handle)
{
if($echo_command)
{
if($nl2br) { echo nl2br("CONNECTION FAILED\r\n"); }
else { echo "CONNECTION FAILED\r\n"; }
}
return False;
}
if($echo_command)
{
if($nl2br) { echo nl2br("SUCCESS\r\n"); }
else { echo "SUCCESS\r\n"; }
}
$response = fgets($handle,1);
$bytes_left = socket_get_status($handle);
if ($bytes_left > 0) { $response .= fread($handle, $bytes_left["unread_bytes"]); }
if($echo_response)
{
if($nl2br) { echo nl2br($response); }
else { echo $response; }
}
return $handle;
}
function smtp_command($handle, $command, $echo_command=False, $nl2br=False)
{
if($echo_command)
{
if($nl2br) { echo nl2br($command); }
else { echo $command; }
}
fputs($handle, $command);
$response = fgets($handle,1);
$bytes_left = socket_get_status($handle);
if ($bytes_left > 0) { $response .= fread($handle, $bytes_left["unread_bytes"]); }
if($nl2br) { return nl2br($response); }
else { return $response; }
}
function smtp_close($handle)
{
fclose($handle);
}
?>
richardaburton at hotmail dot com
19-Oct-2003 08:29
Improved HTTP/1.1 chunked transfer-encoding example.
The sample code given below by Jack does not function correctly when run against a recent version of Apache (I'm assuming that this did once work, but from the HTTP/1.1 spec I can only assume if it did work it was based mostly on luck).
<?php
$header = "";
$response = "";
if (!($request=fsockopen('whatever.com',80,$errno,$errstr))) exit($errstr);
else {
socket_set_timeout($request,10);
fwrite($request,$post);
do $header.=fread($request,1); while (!preg_match('/\\r\\n\\r\\n$/',$header));
if (preg_match('/Transfer\\-Encoding:\\s+chunked\\r\\n/',$header))
do {
$byte = "";
$chunk_size="";
do {
$chunk_size.=$byte;
$byte=fread($request,1);
} while ($byte!="\\r"); fread($request, 1); $chunk_size=hexdec($chunk_size); $response.=fread($request,$chunk_size);
fread($request,2); } while ($chunk_size); else {
if (preg_match('/Content\\-Length:\\s+([0-9]*)\\r\\n/',$header,$matches)) {
$response=fread($request,$matches[1]);
} else {
while (!feof($request)) $response .= fread($request, 4096);
}
}
fclose($request);
}
print($header);
print($response);
?>
Richard.
pulstar at ig dot com dot br
23-Sep-2003 11:24
To emulate a web browser with PHP using socket functions, there is a very good class to do this:
http://sourceforge.net/projects/snoopy/
Some of its features:
* easily fetch the contents of a web page
* easily fetch the text from a web page (strip html tags)
* easily fetch the the links from a web page (add a filter for "mailto:" links and you can easily fetch e-mail addresses).
* supports proxy hosts
* supports basic user/pass authentication
* supports setting user_agent, referer, cookies and header content
* supports browser redirects, and controlled depth of redirects
* expands fetched links to fully qualified URLs (default)
* easily submit form data and retrieve the results
* supports SSL and frames
joe at edwardsconsultants dot com
10-Aug-2003 02:56
just a quick note for users attempting https and thinking they must resort to curl or alternate methods -
you can use fsockopen, just read the docs closely. basically they are saying to use 'ssl://' for a HTTPS (SSL) web request.
so this would work for authorize.net, and others; even for that paypal IPN - however I think it would be best to leave the site and deal with paypal's form:
$host = "somehost.somedomain.com";
$port = 443;
$path = "/the/url/path/file.php"; //or .dll, etc. for authnet, etc.
//you will need to setup an array of fields to post with
//then create the post string
$formdata = array ( "x_field" => "somevalue");
//build the post string
foreach($formdata AS $key => $val){
$poststring .= urlencode($key) . "=" . urlencode($val) . "&";
}
// strip off trailing ampersand
$poststring = substr($poststring, 0, -1);
$fp = fsockopen("ssl://".$host, $port, $errno, $errstr, $timeout = 30);
if(!$fp){
//error tell us
echo "$errstr ($errno)\n";
}else{
//send the server request
fputs($fp, "POST $path HTTP/1.1\r\n");
fputs($fp, "Host: $host\r\n");
fputs($fp, "Content-type: application/x-www-form-urlencoded\r\n");
fputs($fp, "Content-length: ".strlen($poststring)."\r\n");
fputs($fp, "Connection: close\r\n\r\n");
fputs($fp, $poststring . "\r\n\r\n");
//loop through the response from the server
while(!feof($fp)) {
echo fgets($fp, 4096);
}
//close fp - we are done with it
fclose($fp);
}
sergiopaternoster at tiscali dot it
30-Jul-2003 10:49
If you want to connect via Telnet, it could be useful to set also the Terminal Type (some OS requires it)
$IAC = chr(255); /* interpret as command: */
$SB = chr(250); /* interpret as subnegotiation */
$SE = chr(240); /* end sub negotiation */
$TELOPT_TTYPE = chr(24); /* terminal type */
$TELQUAL_IS = chr(0); /* Option is... */
//sending Terminal Type
fwrite($sock,$IAC.$SB.$TELOPT_TTYPE.$TELQUAL_IS.'vt100'.$IAC.$SE);
ciao
Sergio Paternoster
johnyu at revolutionhosting dot net
23-Jul-2003 02:45
It appears with PHP 4.3.2, on windows machines. fsockopen isn't able to use the ssl:// prefix even if you have the OpenSSL dll loaded in php.ini
On the otherhand, with PHP 4.5 CVS, it looks like SSL support for fsockopen is already compiled in... but it's missing the zip lib which I also need =(
brage (a t) jeffnappi (d.o.t) commie
10-Jul-2003 02:16
thought you guys may appreciate this function, allows you to pass an array of urls to download and does so simultaneously using non-blocking sockets, then returns the data in an array.
// function connects to an array of URLS at the same time
// and returns an array of results.
function multiHTTP ($urlArr) {
$sockets = Array(); // socket array!
$urlInfo = Array(); // info arr
$retDone = Array();
$retData = Array();
$errno = Array();
$errstr = Array();
for ($x=0;$x<count($urlArr);$x++) {
$urlInfo[$x] = parse_url($urlArr[$x]);
$urlInfo[$x][port] = ($urlInfo[$x][port]) ? $urlInfo[$x][port] : 80;
$urlInfo[$x][path] = ($urlInfo[$x][path]) ? $urlInfo[$x][path] : "/";
$sockets[$x] = fsockopen($urlInfo[$x][host], $urlInfo[$x][port],
$errno[$x], $errstr[$x], 30);
socket_set_blocking($sockets[$x],FALSE);
$query = ($urlInfo[$x][query]) ? "?" . $urlInfo[$x][query] : "";
fputs($sockets[$x],"GET " . $urlInfo[$x][path] . "$query HTTP/1.0\r\nHost: " .
$urlInfo[$x][host] . "\r\n\r\n");
}
// ok read the data from each one
$done = false;
while (!$done) {
for ($x=0; $x < count($urlArr);$x++) {
if (!feof($sockets[$x])) {
if ($retData[$x]) {
$retData[$x] .= fgets($sockets[$x],128);
} else {
$retData[$x] = fgets($sockets[$x],128);
}
} else {
$retDone[$x] = 1;
}
}
$done = (array_sum($retDone) == count($urlArr));
}
return $retData;
}
# also if anyone has idea to improve this that would be wonderful
chris at music-server dot com
03-Jul-2003 06:53
I also needed a file upload via fsockopen and tried to work with Chris Snyders posting above:
========================
POST /path/to/script.php HTTP/1.0
Host: example.com
Content-type: multipart/form-data, boundary=AaB03x
Content-Length: $requestlen
--AaB03x
content-disposition: form-data; name="field1"
$field1
--AaB03x
content-disposition: form-data; name="field2"
$field2
--AaB03x
content-disposition: form-data; name="userfile"; filename="$filename"
Content-Type: $mimetype
Content-Transfer-Encoding: binary
$binarydata
--AaB03x--
==========================
I discovered some weird behaviour on my Linux server with PHP 4.0 and wanted to let you know :)
1) Lines needed to end with \r\n (else the last character of the value was cropped)
2) I needed to remove Content-Type and Content-Transfer-Encoding from the binary "userfile" - else the uploaded file contained these strings and was invalid!
3) The receiving script couldn't reference to the variables $field1 although register_globals was switched on! Needed to work with $HTTP_POST_VARS['field1'] and $HTTP_POST_FILES['userfile'] to get the values.
o.k., here's the script sending the header:
$f=fsockopen($server,80,$errno,$errstr,30);
fwrite($f,$header);
fclose($f);
The receiving script is as easy :) The file was uploaded to $HTTP_POST_FILES['userfile']['tmp_name'] and the variables were named as mentioned above.
Hope, it prevents spending another afternoon to figure out a file-upload this way :-)
xbensemhoun at t-systems dot fr
25-Jun-2003 02:48
To make a telnet connection with a Cisco router:
$cfgServer = "192.168.0.10"; //IP of your router
$cfgPort = 23; //port, 22 if SSH
$cfgTimeOut = 10;
$usenet = fsockopen($cfgServer, $cfgPort, &$errno, &$errstr, $cfgTimeOut);
if(!$usenet)
{
echo "Connexion failed\n";
exit();
}
else
{
echo "Connected\n<BR>";
fputs ($usenet, "toto\r\n");
fputs ($usenet, "en\r\n");
fputs ($usenet, "tutu\r\n");
fputs ($usenet, "exit\r\n");
while (!feof($usenet))
{
echo ". ".fgets($usenet, 128)."<BR>\n";
}
}
Then you will have:
Connected
.
.
. User Access Verification
.
. Password:
. testXB>en
. Password:
. testXB#exit
.
blazely at removetoemail netspace net au
08-Jun-2003 09:55
Here's a quick function to establish a connection to a web server that will time out if the connection is lost after a user definable amount of time or if the server can't be reached.
Also supports Basic authentication if a username/password is specified. Any improvements or criticisms, please email me! :-)
Returns either a resource ID, an error code or 0 if the server can't be reached at all. Returns -1 in the event that something really wierd happens like a non-standard http response or something. Hope it helps someone.
Cheers,
Ben Blazely
function connectToURL($addr, $port, $path, $user="", $pass="", $timeout="30")
{
$urlHandle = fsockopen($addr, $port, $errno, $errstr, $timeout);
if ($urlHandle)
{
socket_set_timeout($urlHandle, $timeout);
if ($path)
{
$urlString = "GET $path HTTP/1.0\r\nHost: $addr\r\nConnection: Keep-Alive\r\nUser-Agent: MyURLGrabber\r\n";
if ($user)
$urlString .= "Authorization: Basic ".base64_encode("$user:$pass")."\r\n";
$urlString .= "\r\n";
fputs($urlHandle, $urlString);
$response = fgets($urlHandle);
if (substr_count($response, "200 OK") > 0) // Check the status of the link
{
$endHeader = false; // Strip initial header information
while ( !$endHeader)
{
if (fgets($urlHandle) == "\r\n")
$endHeader = true;
}
return $urlHandle; // All OK, return the file handle
}
else if (strlen($response) < 15) // Cope with wierd non standard responses
{
fclose($urlHandle);
return -1;
}
else // Cope with a standard error response
{
fclose($urlHandle);
return substr($response,9,3);
}
}
return $urlHandle;
}
else
return 0;
}
annettetruong at yahoo dot com
27-May-2003 04:23
I need to use Paypal IPN and can't use fsockopen() or cURL. I'm trying the following as a workaround to using fsockopen() which creates a hidden form that is automatically submitted upon page load, with the final verification step from Paypal caught in the iframe. I would appreciate comments on the pitfalls to this method.
About Paypal IPN:
http://www.paypal.com/cgi-bin/webscr?cmd=p/xcl/rec/ipn-intro-outside
Thanks, Annette.
<?php
$hiddenForm = "<input type='hidden' name='cmd' value='_notify-validate'>\n";
$pageBody = "<body onLoad='document.all.myForm.submit();'>";
$pageBody .= "<h2>IPN Results</h2>";
foreach ($_POST as $key => $value) {
$hiddenForm .= "<input type='hidden' name='".$key."' value='".$value."'>\n";
echo $key.": ".$value."<br>\n";
}
$hiddenForm = "<form name='myForm' method='POST' action='https://www.paypal.com/cgi-bin/webscr' target='myFrame'>\n".$hiddenForm."</form>\n<br>";
$pageBody .= "The frame below will contain the IPN response: VERIFIED or INVALID.<br>\n";
$iFrame = "<iframe name='myFrame'></iframe><br>\n";
$pageBody .= $hiddenForm;
$pageBody .= $iFrame;
$pageBody .= "</body></html>\n";
echo $pageBody;
?>
Ignacio Sbampato
04-May-2003 10:49
You can know from which country are your visitors sending a query to ip-to-country online tool using code below:
****************************************
$ip = $REMOTE_ADDR;
$doc = "/get-country/?ip=" . $ip . "&user=guest&pass=guest";
$url = "ip-to-country.com";
$fp = fsockopen ($url, 80, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)<br/>\n";
} else {
fputs ($fp, "GET $doc HTTP/1.0\r\nHost: " . $url. "\r\n\r\n");
while (!feof($fp)) {
$httpresult = fgets ($fp,1024);
}
fclose ($fp);
}
if (isset($httpresult))
{
echo "Ud. est accediendo desde: <b>$httpresult</b>";
}
****************************************
NOTE: I had to modify the code provided by ip-to-country in its own Tools section because is buggy.
csnyder at chxo dot com
28-Mar-2003 07:04
Need to create a POST request that uploads a file?
I spent this afternoon trying to figure out what one looks like, and here is a template that has been successful for me:
========================
POST /path/to/script.php HTTP/1.0
Host: example.com
Content-type: multipart/form-data, boundary=AaB03x
Content-Length: $requestlen
--AaB03x
content-disposition: form-data; name="field1"
$field1
--AaB03x
content-disposition: form-data; name="field2"
$field2
--AaB03x
content-disposition: form-data; name="userfile"; filename="$filename"
Content-Type: $mimetype
Content-Transfer-Encoding: binary
$binarydata
--AaB03x--
==========================
Note that you have to generate the Content-Length header after you generate the body of the request (from the first --AaB03x down, including the file data), so the thing to do in practice is to build the body first, get the strlen(), and then build the headers onto the front of the body.
See RFC1867 - Form-based File Upload in HTML (http://www.faqs.org/rfcs/rfc1867.html) for more info on the format of "multipart/form-data" posts.
Good luck!
admin at php dot kz
27-Mar-2003 05:19
[quote]have seen in lot of places ppl asking on how to post data to another server using a php script...so here is what is required to do that...
//create a string with all the posted data...
foreach ($HTTP_POST_VARS as $key => $value) {
$value = urlencode(stripslashes($value));
$req .= "&$key=$value";
}
.....
[/quote]
it is better to move '&' sign to the end of string
$req .= "$key=$value&";
matthijs at rohs dot nl
18-Feb-2003 02:38
Here's a function that finds the Server Software of a server and returns it. The timeout is at 1 second, but I would prefer, if you use this function many times on a page, to set it lower.
<?php
function get_server_software($domain) {
$fp = fsockopen($domain, 80, $errno, $errstr, 1);
if (!$fp) {
return("");
}
else {
fputs($fp, "HEAD / HTTP/1.1\r\nHost: " . $domain . "\r\n\r\n");
while (!feof($fp)) {
if (preg_match("/\bServer:/", $server = fgets($fp, 256))) {
fclose($fp);
return(substr($server, 8, -2));
}
}
fclose($fp);
}
}
?>
Sherif Gayed
29-Jan-2003 10:00
Here is how to connect to the web from behind a proxy server:
/*************start code**************/
/*your proxy server address*/
$proxy = "192.168.10.1";
/*your proxy server port*/
$port = 8080;
/*the url you want to connect to*/
$url = "";
$fp = fsockopen($proxy, $port);
fputs($fp, "GET $url HTTP/1.0\r\nHost: $proxy\r\n\r\n");
while(!feof($fp)){
$line = fgets($fp, 4000);
print($line);
}
fclose($fp);
/*************end code**************/
g dot bashi at ntlworld dot com
03-Jan-2003 09:55
The timeout parameter was not supported under windows until PHP 4.3.0, previously it was fixed at 30sec.
dan at lovepond dot com
17-Dec-2002 01:38
<?
$port=4000;
$host="localhost";
$message="test";
$status=senddata($host,$port,$message);
print "$status";
function senddata($host,$port,$message) {
$linenumber="2"; $lineamount="1"; $fp = fsockopen("$host", $port, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)";
}
else {
for ($i = 1; $i < $linenumber+1; $i++) {
fread ($fp,1);
$bytes_left = socket_get_status($fp);
if ($bytes_left > 0) { fread($fp, $bytes_left[unread_bytes]); }
}
fputs($fp, "$message\r\n");
for ($i = 1; $i < $lineamount+1; $i++) {
$status.=fread($fp,1);
$bytes_left = socket_get_status($fp);
if ($bytes_left > 0) { $status.=fread($fp, $bytes_left[unread_bytes]); }
}
fclose ($fp);
}
return $status;
}
?>
Here is some code to help out abit more with the EOF problem.
I had a problem where I needed to strip out so many lines of server input to get back right data i wanted. UPDATE
verran at descent-rangers dot com
16-Oct-2002 07:28
I was tearing my hair out for a week trying to figure out how to do this.
If you use fsockopen with a service that doesn't have an EOF, or you try to read beyond EOF or line break, PHP can hang completely.
In my case, I was trying to write a class that talks to Kali servers (www.kali.net) to get a list of people on the chat server. To keep PHP from hanging due to the above, I discovered this:
class kali_utils {
function games_list($kali_server_ip, $kali_server_port) {
$result = array();
$fp = fsockopen($kali_server_ip, $kali_server_port, $errno, $error, 30);
if (!$fp) {
$result["errno"] = $errno;
$result["error"] = $error;
}
else {
fputs($fp, "KALIQ");
$header = fread($fp, 5);
$bytes_left = socket_get_status($fp);
if ($bytes_left > 0) {
$result["results"] = fread($fp, $bytes_left["unread_bytes"]);
}
else {
$result["results"] = "";
}
fclose($fp);
}
return $result;
}
}
When I send the request packet, I get a response packet of length 5. Then I call socket_get_status() and use the unread_bytes key from it to know how far to fread from the socket. Works very good.
I've only used this on PHP 4.2.1 so far.
iain at monitormedia dot co dot uk
19-Jul-2002 05:48
Here's how to send an email using SMTP. This includes rudimentary checking on server responses during the process of sending an email. Could be improved by more comprehensive processing of the result codes...or going on to the next mail exchanger when you fail after connecting to the first.
<?
function another_mail($to,$subject,$headers,$message)
{
$from="me@here.com";
list($me,$mydomain) = split("@",$from);
list($user,$domain) = split("@",$to,2);
if(getmxrr($domain,$mx,$weight) == 0) return FALSE;
array_multisort($mx,$weight);
$success=0;
foreach($mx as $host) {
$connection = fsockopen ($host, 25, &$errno, &$errstr, 1);
if (!$connection)
continue;
$res=fgets($connection,256);
if(substr($res,0,3) != "220") break;
fputs($connection, "HELO $mydomain\n");
$res=fgets($connection,256);
if(substr($res,0,3) != "250") break;
fputs($connection, "MAIL FROM: $from\n");
$res=fgets($connection,256);
if(substr($res,0,3) != "250") break;
fputs($connection, "RCPT TO: $to\n");
$res=fgets($connection,256);
if(substr($res,0,3) != "250") break;
fputs($connection, "DATA\n");
$res=fgets($connection,256);
if(substr($res,0,3) != "354") break;
fputs($connection, "To: $to\nFrom: $from\nSubject: $subject\n$headers\n\n$message\n.\n");
$res=fgets($connection,256);
if(substr($res,0,3) != "250") break;
fputs($connection,"QUIT\n");
$res=fgets($connection,256);
if(substr($res,0,3) != "221") break;
$success=1;
break;
}
if($connection) {
if($success==0) fputs($connection, "QUIT\n");
fclose ($connection);
}
return $success?TRUE:FALSE;
}
another_mail("recipient@some.domain","My Subject","X-mailer: PHP Script\nX-another-header: Whatever","Test email body.\n\nNote if you actually put a period on a line\nby itself, the function will terminate prematurely.\n\nYou will get a partial email sent though.\n");
?>
t dot hodder at globalgold dot co dot uk
26-Jun-2002 08:52
You can post to a script that uses basic authentication if you create the
header like this and insert it into the relevant script above;
// Build the header
$header = "POST /path/to/script.cgi HTTP/1.0\r\nAuthorization: Basic ";
$header .= base64_encode("$username:$password") . "\r\n";
$header .= "Content-type: application/x-www-form-urlencoded\r\n";
$header .= "Content-length: " . strlen($request) . "\r\n";
$header .= "Connection: close\r\n\r\n";
Arif dot Budiman at no dot spam dot please
16-Jan-2002 08:43
This example queries Network Solutions whois database:
<?
$domain = "arifbudiman.net";
if (trim($domain) <> "") {
$domain = trim($domain);
$fp = fsockopen("whois.networksolutions.com", 43, $errno, $errstr, 30);
if (!$fp) {
echo "$errstr ($errno)";
} else {
fputs($fp, "$domain\r\n");
print "<pre>\r\n";
while (!feof($fp)) {
echo fread($fp,128);
}
print "</pre>";
fclose ($fp);
}
}
?>
info at TAKETHISOUT dot ski-info-online dot com
08-Jan-2002 06:30
This is a "gotcha" that "got me" and discusses the careful use of HTTP/1.1 over HTTP/1.0
I had a script that suffered dreadful performance and return Hex values amongst the correct data. This was eventually traced to my inclusion of HTTP/1.1 in the line which read:
-- CODE (watch wrap) --
$request = "GET $document" . "?" . "$query" . " HTTP/1.1\r\n";
$request .= "Host: $myServer\r\n\r\n";
-- CODE --
By sending a HTTP/1.1 request it declares that it is willing to 'speak' HTTP/1.1, of course, but there are some aspects of HTTP/1.1 that make it necessary to handle the socket differently from HTTP/1.0.
In the RFC 2616, Section 3.6 defines:
[...]
All HTTP/1.1 applications MUST be able to receive and decode the "chunked" transfer-coding,
[...]
This was the cause of the extraneous HEX values being displayed.
Regards the loss of performance, this is also due to using HTTP/1.1, which defaults to having keepalive on until you tell it to close the connection, or it times out. Therefore the socket was being kept open by the script.
Simply changing the line in the script to HTTP/1.0 completely fixed the problem.
Speaking with one of the members in PHP-dev his words were:
[Comment from Hartmut Holzgraefe]
"I stumbled over the same 'chunked' problem not to long ago as a rule of thumb: never use HTTP/1.1 unless you really know that you have to, claiming to be a HTTP/1.0 client is no problem."
I have posted this as it was something I found very difficult to debug as there is actually nothing wrong with the script. This sort of problem often requires an in depth knowledge of an area that most developers would not have or consider. I would doubt that many, in any, who are reading this have ever read the HTTP RFC 2616 (I doubt also that it is a rivetting read :)) I hope this helps any future developers who are considering the use of high level socket connections with HTTP/1.1.
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dns_get_record