HTTP

HTTP Status Codes explained for web servers

As a web administrator I encounter quite a few instances where a weird HTTP status is returned to a browser.Even using them often it’s hard to remember the codes 100% and what they all mean. Sure, a 404 means the file doesn’t exist and a 200 is a good response… but what about the harder more obscure ones? Generally the toughest to resolve revolve around permissions and the HTTP 401.x status, here is a good article explaining the HTTP 401 sub status codes for IIS (The general idea will flow over to other web servers like apache as well).

As a  added bonus here is a great article that explains a vast variety of other HTTP Status codes.

How to retrieve HTML web pages with VBScript via the Microsoft.XmlHttp object

Recently, I had a situation where I had to pull down a HTML page to compare it to a known copy of the page. Certainly, IE or FireFox– or Google’s Chrome would have done the trick and I could have viewed the source. But that would require me to do work every time we needed to check the page against the known good source.

 Instead I wrote a script to pull the HTML source and echo the response to the console (or a messag box if you are not using cscript to execute the script). While not a full blown HTTP QA script it does do the job of getting the HTTP responses from the server and is certainly a core part of any QA script anyone would write.

Basically the script uses the Microsoft.XMLHTTP object to preform all the HTTP calls and retrieve the HTML page. It sounds scary, but if you look at the script below I think you’ll find that it really is quite easy to accomplish.  So, here is the script’s code:

URL=”http://www.gamersigs.net/“
Set WshShell = WScript.CreateObject(”WScript.Shell”)
Set http = CreateObject(”Microsoft.XmlHttp”)

On Error Resume Next
http.open “GET”, URL, False
http.send “”
if err.Number = 0 Then
     WScript.Echo http.responseText
Else
     Wscript.Echo “error ” & Err.Number & “: ” & Err.Description
End If
set WshShell = Nothing
Set http = Nothing

Enjoy!