Router Web Page Authentication

Sorry to be bringing this up again, it looks like it's been addressed a few times in the last couple years, but I've read these multiple times and attempted to apply the lessons they teach and have not had success.
http://forums.ni.com/t5/LabVIEW/HTTP-Connection-with-Password/m-p/1146346#M504441
http://forums.ni.com/t5/LabVIEW/Read-data-of-embedded-web-page/m-p/1243792#M525335
http://forums.ni.com/t5/LabVIEW/Use-LabVIEW-to-login-username-and-password-into-device-IP/m-p/651832...
and of course http://en.wikipedia.org/wiki/Basic_access_authentication
What I'm trying to achieve here is use LabVIEW 2010 to rip text from multiple pages of a local router via WiFi, parse the text, and make decisions based on the values retrieved. Unfortunately some of the information I need requires a password be entered (just a password, "admin") before being granted access to to the pages I want. Pretty typical for routers though I think.
Ripping the text and parsing the strings is not a problem (though it can be a drag), I'm having difficulty with logging in to the router with LabVIEW. As I said the password is "admin" and unfortunately I have to assume that the username is also "admin".
This is the page I'm trying to get to after logging in: http://192.168.0.1/user/advanset.html?sid=824643 (I'm not trying to post a link for anyone to click on, just showing the URL)
So using MikeS81's WebPageAuthentication_LV85.vi (found here: http://forums.ni.com/t5/LabVIEW/Read-data-of-embedded-web-page/m-p/1251826#M527035) I can get the source html, but not the info from the page.
Therefore I'm trying to use MikeS81's WebPageAuthentication_LV85.vi in conjunction with the Rip Web Text.vi (sorry, can't seem to find a link to it right now, but I did get it form the NI LabVIEW forums). When Rip Web Text is incorporated the browser returns
"The website declined to show this webpage
HTTP 403
Most likely causes:
This website requires you to log in."
I don't know a whole lot about web pages or TCPIP or HTML but I'm assuming that "sid=" in the URL means I'm being granted temporary access via some kind unique ID that expires, a cookie or something. The VI is attached to this post, please let me know if you have any thoughts on it. I've changed the indicators to use the output I received as the default values (so you should be able to see what I've gotten back in the VI). It seems to me that I should be trying to rip the text before closing the TCP connection opened for authentication, if this is incorrect please let me know.
I know it may seem that I'm Frankensteining some serious crap together here, hope this doesn't end up in the Rube Goldberg thread... but I'll understand if it does.
Thanks, and have a great weekend.
Attachments:
WPAuth_RipWT_2010.vi ‏74 KB

Christopher:
A couple of thoughts regarding your POST VI:
The 501 error makes it sound like (and I'm just guessing here) we have a header parameter off. LabVIEW is probably just assuming a set of defaults or not even specifying the header, whereas your browser is probably turning around and re-using the headers it got from the GET requests.
I think it might be worth manually inserting the header data (you can get it from the tamperdata capture) line by line into the request (see screen shot).
Here's what looks like an/the important POST:
POST http://192.168.0.1/ajax_request?Endpassword=admin Load Flags[LOAD_BYPASS_CACHE LOAD_BACKGROUND ] Content Size[-1] Mime Type[text/html]
Request Headers:
Host[192.168.0.1]
User-Agent[Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.13) Gecko/20101203 Firefox/3.6.13]
Accept[*/*]
Accept-Language[en-us,en;q=0.5]
Accept-Encoding[gzip,deflate]
Accept-Charset[ISO-8859-1,utf-8;q=0.7,*;q=0.7]
Keep-Alive[115]
Connection[keep-alive]
X-Requested-With[XMLHttpRequest]
Referer[http://192.168.0.1/]
Cookie[ddddd=; dddddddd=; lct_remember_me=; mac_remember=; lct_psw=; checked=]
Pragma[no-cache]
Cache-Control[no-cache]
Content-Length[0]
Response Headers:
Content-Type[text/html]
Date[Tue, 17 Mar 2009 15:38:22 GMT]
Connection[close]
Here's the beginning of how we'd put in the header data:
Also, in your VI, it looks like there's a space in the request data: /ajax_request ?Endpassword=admin.
Try changing it to /ajax_request?Endpassword=admin.
The issue may just be that space, so try that first...
Caleb Harris
National Instruments | Mechanical Engineer | http://www.ni.com/support

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