Need help with winhttp request to an httpS server

[Balex]

Hi

This is a question for people who know and use the winhttp DLL from MS.

I need to be able to simulate the entry by users of data into a web-based application. So I started with using winhttp to "dialogue" with web servers from a VB.Net app. It works fine as long as the server is a straightforward http server. I am able to retrieve pages from such a server and to send "answers" to the server to get the next page, and so on. No problems.

I now tried to do the same with an httpS (secure) server URL (because the real app I have to feed with data resides on such a secure server), and I just can't connect to it.

I have tried accessing one page like this:

' This page exists and I can connect interactively to it over IE
URL ="https://myroot/mypage/script.do"

' Open an HTTP connection
HttpReq.Open("GET", URL, False)

' Set credentials for server.
HttpReq.SetCredentials("myuser", "mypassword", HTTPREQUEST_SETCREDENTIALS_FOR_SERVER)

' Send the HTTP Request.
HttpReq.Send()

That does not work at all, I get no response whatsoever from the server.

I don't know if I should set any proxy settings (and where do I find the values then?), which is one the HttpReq methods available.

I have looked at the SetClientCertificate method, but I have no idea where certificates would be on my machine. The certificate examples from MS are hinting at the registry and HKEY_LOCAL_MACHINE, but I can't see anthing there in my registry that relates to certificates.

I am working as an external contractor in a large company, and I don't know what is preventing me from accessing the https-based page mentioned above, as I can access it interactively from the Internet Explorer (on the Intranet) without any problems. However, accessing it programatically just doesn't work, whereas it's a breeze with http servers.

Can somebody point me in the right direction ? What shall I look for ? What could be in the way of me accessing a secure http server on the Intranet of the company ?

Thanks for any help you can provide.

Balex

[Balex]

Hi

I have solved my problem. I needed to define the proxy settings, now it works, but I have a new problem... that will be a new post...:-)

Balex

Hi

This is a question for people who know and use the winhttp DLL from MS.

I need to be able to simulate the entry by users of data into a web-based application. So I started with using winhttp to "dialogue" with web servers from a VB.Net app. It works fine as long as the server is a straightforward http server. I am able to retrieve pages from such a server and to send "answers" to the server to get the next page, and so on. No problems.

I now tried to do the same with an httpS (secure) server URL (because the real app I have to feed with data resides on such a secure server), and I just can't connect to it.

I have tried accessing one page like this:

' This page exists and I can connect interactively to it over IE
URL ="https://myroot/mypage/script.do"

' Open an HTTP connection
HttpReq.Open("GET", URL, False)

' Set credentials for server.
HttpReq.SetCredentials("myuser", "mypassword", HTTPREQUEST_SETCREDENTIALS_FOR_SERVER)

' Send the HTTP Request.
HttpReq.Send()

That does not work at all, I get no response whatsoever from the server.

I don't know if I should set any proxy settings (and where do I find the values then?), which is one the HttpReq methods available.

I have looked at the SetClientCertificate method, but I have no idea where certificates would be on my machine. The certificate examples from MS are hinting at the registry and HKEY_LOCAL_MACHINE, but I can't see anthing there in my registry that relates to certificates.

I am working as an external contractor in a large company, and I don't know what is preventing me from accessing the https-based page mentioned above, as I can access it interactively from the Internet Explorer (on the Intranet) without any problems. However, accessing it programatically just doesn't work, whereas it's a breeze with http servers.

Can somebody point me in the right direction ? What shall I look for ? What could be in the way of me accessing a secure http server on the Intranet of the company ?

Thanks for any help you can provide.

Balex