I'm using this to check for the availability of a URL:
$fp = fsockopen($url, 443, $errno, $errstr);
and I get this error back...
Warning: fsockopen() [function.fsockopen]: unable to connect to https://example.com/soapserver.php:443 (Unable to find the socket transport "https" - did you forget to enable it when you configured PHP?) in C:\Home etc etc....
I'm using an IIS server btw,( no its not my doing! ) so I think its something to do with not having open-ssl, but I'm not sure. Can anyone help please?
I did a phpinfo() and I do have ssl, but on IMAP and cURL, thats all.
Any ideas?
Uncomment the line: extension=php_openssl.dll in php.ini
You should be using just the hostname, not the URL in the fsockopen call. You'll need to provide the uri, minus the host/port in the actual HTTP headers. As #Martijin noted, and as listed in the manual page, you'll need to preface your host name with ssl:// for SSL or tls:// if using transport layer security.
Manual page for fsockopen. Look at Example #1.
also for ssl you need to prefix the host with ssl://
Let's say you wanted to grab NY Times, which enforces HTTPS:
Incorrect:
$client = stream_socket_client('https://www.nytimes.com', $errno, $errstr, 30);
Correct:
$client = stream_socket_client('tcp://www.nytimes.com:443', $errno, $errstr, 30);
Note I've replaced https:// with tcp:// and appended the 443 port to the hostname.
I guess we can say that stream_socket_client() does not speak URLs.
Switching to ssl:// worked for me but I kept getting a BAD REQUEST response. I found that I needed to add one more line to declare explicitly my Host Header as described here and ensure that I've updated my HTTP from HTTP/1.0 to HTTP/1.1:
$header .= "POST /cgi-bin/webscr HTTP/1.1\r\n";
$header .= "Host: www.sandbox.paypal.com\r\n";
Check curl installed or not for php.
if it is not installed install the curl.
for windows Uncomment the line: extension=php_openssl.dll in php.ini,
for ubuntu sudo apt-get install php-curl
Related
My code should check email boxes via proxy with PHP using SSL.
Zend\Mail package provides implementation of both protocols without php extention and fits fine.
I partially override connect() method by code:
$this->socket = fsockopen($proxy, $proxy_port, $errno, $errstr, self::TIMEOUT_CONNECTION);
$this->sendRequest("CONNECT {$host}:{$port} HTTP/1.1");
$this->sendRequest("Host: {$host}:{$port}");
$this->sendRequest($userAgent);
$this->sendRequest("Proxy-Authorization: basic " . base64_encode("$user:$pass") . "\r\n");
// Remove 2 lines with proxy response
fgets($this->socket);
fgets($this->socket);
With unsecure connection everything works fine, but not works for secured port.
Connections on 110 port rejected by server with "please use SSL/TLS", when script tries to connect on secure port 995, nothing happend, no any response from mail server.
Probably, I missed one more HTTP header or so.
Anybody knows which command need send to end server through HTTP tunnel to start SSL connection?
I wrote a small SIP client for a special purpose.
Basically it connects to port 5060 using function fsockopen()
$fp = fsockopen("10.0.0.1", 5060, $errno, $errstr, 30);
and then basically reads and writes SIP commands using fread() and fwrite().
Now my SIP service operator wants us clients to use SIPS which is
basically SIP over TLS. I've spent hours looking for information
on how to connect to a port with TLS using PHP but without any
success. Apparently the fsockopen() supports TLS to an extent but
when I replaced the above with:
$fp = fsockopen("tls://10.0.0.1", 5061, $errno, $errstr, 10);
I get nothing. I can connect to the server from my shell with with OpenSSL client:
$ openssl s_client -connect 10.0.0.1:5061
And I can communicate with the SIP server through that connection without problems. OpenSSL support is compiled in the PHP.
My problem is that I can't set up the TLS connection with the server in PHP. I noticed in some forums that in older versions of PHP it was possible to build and use the SSL context with fsockopen() but apparently not anymore, since I get an error about too many parameters.
I also tried using stream_context_create() with stream_context_set_option() but I get no replies from the server:
$context = stream_context_create();
$result=stream_context_set_option($context, 'ssl', 'verify_peer', 'TRUE');
$result=stream_context_set_option($context, 'ssl', 'cafile', 'cert.cer');
$result=stream_context_set_option($context, 'ssl', 'verify_depth', '5');
$fp = stream_socket_client('tls://'.$host.':'.$port, $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $context);
but I still can't get any replies or errors from the server. What is the recommended and working way of using TLS in PHP?
This is enough to open a TLS connection:
$context = stream_context_create();
$fp = stream_socket_client('tls://'.$host.':'.$port, $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $context)
if the certificates are in their place. If they are not, follow the instructions linked by Filippos.
I think some of your options are wrong for validating self signed certificates; the following should be enough to make it work:
$context = stream_context_create([
'ssl' => [
'verify_peer' => true,
'allow_self_signed' => true,
'local_cert' => 'cert.cer',
],
]);
I just recently encountered this error, debugging here and there for connection problem or proxy problem, finally found the culprit ... and the solution was to install php-pecl-crypto extension.
My machine is centos 7 using remi-repo for PHP
You will also need to install the appropriate certificates to get TLS working. Check this SO question for an example of how to use your key files with regular TLS connections.
Also, check the specs of SIPS itself in RFC 5630.
I have a php script using sockets and my code works well when I test it on localhost (XAMPP).
But after I uploaded the same code to my web hosting, it doesn't work properly. In details, It loads a few minutes and finally gives out these error messages.
Warning: socket_connect() [function.socket-connect]: unable to connect [110]: Connection timed out in /home/....
Warning: socket_send() [function.socket-send]: unable to write to socket [32]: Broken pipe in /home/....
Warning: socket_read() [function.socket-read]: unable to read from socket [107]: Transport endpoint is not connected in /home/....
I think it is probably because the server blocks the socket connections. And my questions are:
Can I execute some code to check whether the server blocks it or not? ( e.g. phpinfo() )
What server configurations should I focus on so that I can try to make it connect? (I can access .htaccess file but not php.ini)
Is SSL necessary for socket connections?
If I finally cannot fix this problem because of the server settings, I need to have another web hosting. What features/keywords on the 'plan list' should I notice?
I know there are quite many questions but I hope someone can help me.
Thanks very very much if anyone can give me some advice.
This is weird... As far as I know, there's actually no specific INI directive to enable/disable socket connections. There's a directive to set the timeout (default_socket_timeout), but I doubt it could change anything.
SSL has nothing to do with the sockets. Unless you are using a protocol that may rely on SSL (eg. HTTP).
It is more likely that the server TCP configuration is preventing access to some TCP ports on remote hosts. It is usually the case on shared hosting plans where security and resource usage are tighter.
If you perhaps find a way to connect to a standard port (say 80), you'll find if you have to deal with your hosting provider or go elsewhere :)
Try to execute the following code on your host. It may help finding if this issue is related to the network configuration
//just in case
if (!extension_loaded('sockets')) {
die('The sockets extension is not loaded.');
}
echo '<p><strong>Establishing connection...</strong></p>';
$socket = socket_create(AF_INET,SOCK_STREAM,0);
if (!socket_connect($socket, "stackoverflow.com", 80))
{
die('Socket error : '.socket_strerror(socket_last_error()));
}
echo '<p><strong>Connection successful!</strong></p>';
$request = join("\n",array(
"GET / HTTP/1.1",
"Connection: close",
"Host: stackoverflow.com",
"User-Agent: Mozilla/5.0 (Windows NT 6.1)",
"Accept: text/html,*/*;q=0.8",
""));
socket_write($socket,$request,strlen($request));
$response = socket_read($socket,2048);
echo "<p><strong>This is the received data : </strong></p>";
echo '<pre>'.htmlentities($response).'</pre>';
socket_close($socket);
$options = array( 'http' => array(
'user_agent' => 'toixen', // who am i
'max_redirects' => 10, // stop after 10 redirects
'timeout' => 2, // timeout on response
) );
$context = stream_context_create( $options );
$url = "http://toixen_1:123#btcguild.com:8332";
$dh = fopen( "$url",'r',false,$context);
fwrite($dh, "post");
$result = fread($dh,8192);
echo $result
I have a small script which uses curl and retrives specific contents from a defined url. I had this tested on my localhost and it worked.
Now I have to retrive data from a HTTPS-only website (plus, the certificate is invalid, but I know the owners) from my free hosting, but the myserver neither supports CURL nor file_get_contents("https://other-server.com") function. By the way, http://other-server.com isn't accesible.
Is there any method to fetch a file from this server using the HTTPS port, but with HTTP protocol? Or is there some method to use HTTPS, altough my server doesn't support it? (It isn't my server, I haven't access to its configuration)
Try this:
<?php
$fp = fsockopen("ssl://other-server.com", 443, $errno, $errstr);
if(!$fp) die($errno. " : " . $errstr);
$send =
"GET / HTTP/1.0\r\n".
"Host:other-server.com\r\n".
"Accept:text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8\r\n".
"\r\n";
fwrite($fp, $send);
while(!feof($fp)) {
echo fread($fp, 512);
}
?>
Should you run into 'ssl transport not available error message', see Socket transport "ssl" in PHP not enabled
If your host is external and perhaps a free webhosting service, you are fresh out of luck.. Best option would be to figure out which webhosts has the SSL transport enabled - otherwise the working with HTTPS protocol simply will not comply.
Your last 'out' is to try to load extension into PHP language dynamically. You will need the excact extension (dll/so) which matches
the PHP version on host (see phpinfo).
the CPU architechture of host (unix, see passthru("cat /proc/cpuinfo");), e.g. amd64,i386..
the OS 'layout', .dll is for a windows host (IIS etc) and .so for UNIX.
Funcition to use is dl aka dynamic-link to load the library. For windows host, you will need php_openssl.dll and php_sockets.dll - and in turn for UNIX, OOops - you would need to recompile php core..
Happy hacking :)
php-man-pages
First off, I'm a complete novice as a web developer. I have a PHP function that handles a post request for HTTP, and it works great. I read a few places online that all I have to do to make that same function post to HTTPS is change the port I'm hitting from port 80 to port 443. So instead of looking like this:
$fp = fsockopen($host, 80, $errno, $errstr, 30);
It would look like this:
$fp = fsockopen($host, 443, $errno, $errstr, 30);
Unfortunately, this change doesn't seem to be working. So my questions are these:
Is it true that all I have to change is the port number?
If there is more to do, than what is it I still need to do?
Please try to keep things in as simple terms as possible, since I am the first to admit I'm very new to this kind of stuff.
Thanks a ton everyone.
Is it true that all I have to change is the port number?
No
If there is more to do, than what is it I still need to do?
You have to negotiate an SSL connection and tunnel the HTTP request through it.
Don't try to do this with sockets. Use a library designed for it, such as cURL.
From php.net:
If OpenSSL support is installed, 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.
Try prepending ssl:// to your $host (but also keeping port 443;