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Hello Monks,

I've developed some WWW::Mechanize scripts that work without any problems, but now I am trying to route these scripts through a proxy (Privoxy v3.0.5 Beta running on my local Linux machine) and I'm finding that for all HTTPS requests, I always get 500 response codes. If I remove the Privoxy proxy from my Perl script, everything works. If I keep the proxy and just go to HTTP sites, everything works. If I configure my browser to go through the proxy and load an HTTPS page, everything works.

So to summarize so far...
HTTP request from WWW::Mechanize -> Privoxy => works!
HTTPS request from browser -> Privoxy => works!
HTTPS request from WWW::Mechanize -> direct connection to internet => works!
HTTPS request from WWW::Mechanize -> Privoxy => does NOT work!

Looking at Privoxy's detailed log file, the first sign of things going wrong appears to be that WWW::Mechanize passes a GET request to the proxy. The browsers do not do this, they use CONNECT I really don't know for sure if this is correct since CONNECT isn't really specified in the W3 HTTP 1.1 spec that I Googled.

My hypothesis is that Firefox has got it right and that WWW::Mechanize is not smart enough to use CONNECT instead of GET when requesting HTTPS pages throught a proxy.

My questions to the group are...
1) Does all of this sound right?
2) How would I force a CONNECT from either WWW::Mechanize or LWP in this cirumstance? Nothing is mentioned in any of the docs I've seen. Grepping the code didn't reveal anything to me either.

Here's my code....

#!/usr/bin/perl -w use strict; use WWW::Mechanize; use HTTP::Cookies; use LWP; use LWP::DebugFile; require HTTP::Request; sub main { my $cookie_jar = HTTP::Cookies->new( file => 'cookies.dat', autosave => 1, hide_cookie2 => 1 ); my $bot = WWW::Mechanize->new; $bot->max_redirect(100); $bot->cookie_jar($cookie_jar); $bot->proxy(['http', 'https'], 'http://192.168.250.11:8118/'); $bot->agent('Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1. +8.0.3) Gecko/20060426 Firefox/1.5.0.3'); my $url = "https://login.yahoo.com"; #my $url = "https://us.etrade.com"; my $response = $bot->get($url); my $content = $bot->content; } &main


Here is the Privoxy log looks like when I use my perl script...
Dec 09 22:53:30 Privoxy(b7f856c0) Info: Privoxy version 3.0.5 Dec 09 22:53:30 Privoxy(b7f856c0) Info: Program name: ./privoxy Dec 09 22:53:30 Privoxy(b7f856c0) Info: Listening on port 8118 on IP a +ddress 192.168.250.11 Dec 09 22:53:44 Privoxy(b7f84bb0) Header: New HTTP Request-Line: GET / + HTTP/1.0 Dec 09 22:53:44 Privoxy(b7f84bb0) Header: scan: GET / HTTP/1.0 Dec 09 22:53:44 Privoxy(b7f84bb0) Header: scan: Accept-Encoding: ident +ity Dec 09 22:53:44 Privoxy(b7f84bb0) Header: scan: Host: login.yahoo.com Dec 09 22:53:44 Privoxy(b7f84bb0) Header: scan: User-Agent: Mozilla/5. +0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3) Gecko/20060426 Fire +fox/1.5.0.3 Dec 09 22:53:44 Privoxy(b7f84bb0) Header: addh-unique: Host: login.yah +oo.com Dec 09 22:53:44 Privoxy(b7f84bb0) Header: Adding: Connection: close Dec 09 22:53:44 Privoxy(b7f84bb0) Request: login.yahoo.com/ Dec 09 22:53:44 Privoxy(b7f84bb0) Writing: �Dec 09 22:53:45 Pri +voxy(b7f84bb0) Writing: GET / HTTP/1.0 Accept-Encoding: identity Host: login.yahoo.com User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.3 +) Gecko/20060426 Firefox/1.5.0.3 Connection: close Dec 09 22:53:47 Privoxy(b7f84bb0) Header: Adding: Connection: close Dec 09 22:53:47 Privoxy(b7f84bb0) Writing: Connection: close
Here is the LWP debug information generated...
# LWP::DebugFile logging to lwp_457baef8_5876.log # Time now: {1165733624} = Sat Dec 9 22:53:44 2006 LWP::UserAgent::new: () LWP::UserAgent::proxy: ARRAY(0x8ce0c98) http://192.168.250.11:8118/ LWP::UserAgent::proxy: http http://192.168.250.11:8118/ LWP::UserAgent::proxy: https http://192.168.250.11:8118/ LWP::UserAgent::request: () HTTP::Cookies::add_cookie_header: Checking login.yahoo.com for cookies HTTP::Cookies::add_cookie_header: Checking .yahoo.com for cookies HTTP::Cookies::add_cookie_header: Checking yahoo.com for cookies HTTP::Cookies::add_cookie_header: Checking .com for cookies LWP::UserAgent::send_request: GET https://login.yahoo.com LWP::UserAgent::_need_proxy: Proxied to http://192.168.250.11:8118/ LWP::Protocol::http10::request: () LWP::Protocol::http10::request: S>0 "GET https://login.yahoo.com HTTP/ +1.0\x0D\x0A" LWP::Protocol::http10::request: S>+ "Accept-Encoding: identity\x0D\x0A +" LWP::Protocol::http10::request: S>+ "Host: login.yahoo.com\x0D\x0A" LWP::Protocol::http10::request: S>+ "User-Agent: Mozilla/5.0 (Windows; + U; Windows NT 5.1; en-US; rv:1. 8.0.3) Gecko/20060426 Firefox/1.5.0.3\x0D\x0A\x0D\x0A" LWP::Protocol::http10::request: reading response # Time now: {1165733627} = Sat Dec 9 22:53:47 2006 LWP::Protocol::http10::request: S>0 "Connection: close\x0D\x0A\x0D\x0A +" LWP::Protocol::http10::request: HTTP/0.9 assume OK LWP::Protocol::collect: read 21 bytes LWP::UserAgent::request: Simple response: OK

Here is what the Privoxy log file looks like when a browser (Firefox in this case) requests Yahoo's login page through the proxy...
Dec 09 22:56:06 Privoxy(b7f84bb0) Header: scan: CONNECT login.yahoo.co +m:443 HTTP/1.1 Dec 09 22:56:06 Privoxy(b7f84bb0) Header: scan: User-Agent: Mozilla/5. +0 (X11; U; Linux i686; en-US; rv:1.8.0.8) Gecko/20061109 CentOS/1.5.0 +.8-0.1.el4.centos4 Firefox/1.5.0.8 pango-text Dec 09 22:56:06 Privoxy(b7f84bb0) Header: scan: Proxy-Connection: keep +-alive Dec 09 22:56:06 Privoxy(b7f84bb0) Header: scan: Host: login.yahoo.com Dec 09 22:56:06 Privoxy(b7f84bb0) Header: crumble crunched: Proxy-Conn +ection: keep-alive! Dec 09 22:56:06 Privoxy(b7f84bb0) Header: addh-unique: Host: login.yah +oo.com:443 Dec 09 22:56:06 Privoxy(b7f84bb0) Header: Adding: Connection: close Dec 09 22:56:06 Privoxy(b7f84bb0) Request: login.yahoo.com:443/ Dec 09 22:56:06 Privoxy(b7f84bb0) Writing: �Dec 09 22:56:09 Pri +voxy(b7f84bb0) Writing: HTTP/1.0 200 Connection established Proxy-Agent: Privoxy/3.0.5 (...encrypted traffic follws.)

I am a real loss for what to do next, any help would greatly be appreciated. So many sites have enctypted login pages that this impact almost all of the sites that I want to automate.

In reply to WWW::Mechanize (and LWP) should use CONNECT for HTTPS request when a proxy is used? by spunk

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