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06.05.2008 at 12:19AM PDT, ID: 23459319
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8.2

fsock_open / fwrite using NON ssl proxy, and ssl screen scrape.

Asked by thummper in Secure Socket Layer (SSL) & HTTPS, CGI Scripting, PHP Scripting Language

Tags: , , ,

OK. Im using snoopy (http://snoopy.sourceforge.net), php 5 and fedora 9.

Sorry to be a bit long, I find that when Im not detailed I spend days being asked for them anyway.


I want to go get a https html page with it, through a proxy. I had problems here because for ssl snoopy uses CURL, but not the php extension, and I couldnt get it to like my curl path. So I found a thread on the snoopy forum which says bypass the curl functions in snoopy by making a copy of the fsock_open based ones used for NON ssl connections, all you have to do is tag "ssl://" in front of $host and make sure port = 443 on the SSL version of the function.

    Main script snips look like:
              1    $fp = fsockopen($host, $port, $errno,  $errstr,  $this->_fp_timeout)
              2    fwrite($fp,$headers.$body,strlen($headers.$body))


This works perfect. almost.

Basically, theres four possible scenarios I need it to work in here, and I have 3 working.

1. connect direct to webserver and get http page ($host, $port in line 1 refer to webserver, and are also in line 2 $headers)    WORKS:      

2. connect direct to webserver and get HTTPS page (Same as above, but "ssl://" before $host in line 1)    WORKS:      

3. connect via proxy to webserver and get http page ($host, $port in line 1 refer to PROXY host and port, webserver host / port are in line 2 $headers)     WORKS:      


4. connect via proxy to webserver and get HTTPS page ($host, $port in line 1 refer to PROXY host and port, webserver host / port are in line 2 $headers)    NO GOOD.

The problem with scenario 4. is that theres no good place to put "ssl://". If you put it in front of $host in fsock_open like when you go direct, it doesnt work because the PROXY isnt ssl, which is what fsock_open connects to. You cant put it in the headers of the fwrite because, well, request headers dont have that.

So, I need a way to use fsock_open to connect to HTTPS via proxy that isnt ssl. Ideas?Start Free Trial
 
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[+][-]06.05.2008 at 12:47AM PDT, ID: 21717085

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[+][-]06.05.2008 at 03:38AM PDT, ID: 21717852

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[+][-]06.05.2008 at 04:16AM PDT, ID: 21718035

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[+][-]06.07.2008 at 04:00PM PDT, ID: 21737002

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About this solution

Zones: Secure Socket Layer (SSL) & HTTPS, CGI Scripting, PHP Scripting Language
Tags: PHP, PHP, Fsock_open / snoopy, 5, Question on fsock_open / fwrite functionality with https and non-ssl proxy
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Solution Provided By: thummper
Participating Experts: 1
Solution Grade: A
 
 
 
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