Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 268
  • Last Modified:

Using Win32::Internet to access sites outside of a firewall

I'm using Win32::Internet to write a search engine that retrieves information on different sites.  The problem I'm having is that I'm behind a firewall and I don't know how to get around it.  I can get through using FTP requests, but I can't read files that way.  I want to be able to go to another site, read a file and compare the contents in that file to the search criteria entered. I've tried doing that via ftp, but I have to download the file first.  Is there any other way I can do it?
0
mclennan
Asked:
mclennan
1 Solution
 
icdCommented:
What are these documents you want to retrieve, are they html documents? If so then if a browser can access them then so should a perl script.

I wrote a Win32:Internet program to read html documents that I could find for you, if that is what you need.


0
 
mclennanAuthor Commented:
That's about what I need.  Does it read multiple files in multiple directories or does it only read the files you specify?
0
 
dmethvinCommented:
Most likely the firewall is blocking access through port 80, the one used by default for HTTP (web) access. If the firewall has an HTTP proxy set up, you could get to the outside Internet through the proxy.  You set that up in the Internet applet of Control Panel.

I haven't used the Internet APIs through a proxy, but it appears to be possible according to the docs. In Win32::InternetOpen, set dwAccessType to INTERNET_OPEN_TYPE_PROXY. There's a proxy name that you can pass in as well through lpszProxyName, or leave it empty and it should use the control panel info. If you don't have the docs handy, take a look <A HREF="http://www.graphcomp.com/info/specs/ms/inetr002.htm#wininet_0001000103000c00">http://www.graphcomp.com/info/specs/ms/inetr002.htm#wininet_0001000103000c00</A> for them.

If what you're trying to do is get around the firewall despite the lack of an HTTP proxy, then just about any solution you use will compromise the security of your local network. You should discuss any solution like that with the local network administrators.
0

Featured Post

Free Tool: SSL Checker

Scans your site and returns information about your SSL implementation and certificate. Helpful for debugging and validating your SSL configuration.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now