I'm trying to use proxies with HTTPWebRequets and it works just fine until I try and post data. It keeps timing out for some reason. Attached is the class I use for webrequests.
Imports System.IO
Imports System.Net
Public Class EasyHttp
Public Enum HTTPMethod As Short
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Im programming something with httpwebrequest/response. I'd like to incorporate proxies with that program. I was just wondering whats a good way to verify if proxies are working or not?
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View 3 Repliesi have a site that i would like to login using httpwebrequest.I have this code and added the correct part to post
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim postData As String = "u_name=" & TextBox1.Text & "&p_word=" & TextBox2.Text & "&login=Login"
Dim tempCookies As New CookieContainer
Dim encoding As New UTF8Encoding
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If i enter the wrong login info it says bad login, but if i add the correct login info, it does not login, all it does is displays the login page again?
I'm trying to send some data onto a server. The data is an XML in form of string and and image encoded to base64.The problem is that the server says '404 Not Found', just as if I had an incorrect URL, but my URL is 100% correct. I can get data from the server using GET, but when I try to POST it doesn't work.I checked it in Fiddler and it first gets z 401 error (not logged in) and then the 404 error, which results in an exception.Can anybody please have a look at the below code and tell me if there is something I'm doing wrong?
vb
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
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How to create an POST with the HttpWebRequest Class in VB.net (2008)? I can find exemples with text only but not with text and files.
View 1 RepliesI'm creating an app that edit a post in a ipforum with httpwebrequest and httpwebresponse in vb.net.I use fiddler2 to get the post forms.I successfully create the code to connect to the site the authentication works well and i don't found problems. But to edit a post i don't find how to do it this is the request of the site taken from fiddler:
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I have a web form on a web page like this:
<form
method="post"
action="http://poston.domain.com/"
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I can grab info from a website uing httpwebrequest but i don't know how to post to a form :/Ive always used a webbrowser for this but its a tad slow.Here is what i use with a webbrowser:
Dim DBSplit() As String = Split(TextBox5.Text, "/")
WebBrowser1.Document.GetElementById("email").SetAttribute("value", TextBox1.Text)
WebBrowser1.Document.GetElementById("Pwd").SetAttribute("value", TextBox6.Text)
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How would i post this data to a form using httpwebrequest?
vbnet
Public Class zWrapper
#Region " Variable Declaration "
Private _AllowRedirects = True, _UseGZIP As Boolean = True
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It works fine for GET requests, but when I try a POST, it errors: Quote:
A first chance exception of type 'System.NullReferenceException' occurred in WindowsApplication1.exe
Request Error: Object reference not set to an instance of an object.
I have the following HTML Form That I'm trying to automate:
<html>
<body>
<!-- The data encoding type, enctype, MUST be specified as below -->
<form enctype="multipart/form-data"
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I have a bit of strange behaviour in an asp.net web application that involves the session state being lost.
Process A user logs into the application and the session is set. They then fill out 1 field, and the application then does an AJAX POST to a .asmx web service. Within the web service, I am using a HttpWebRequest to grab data from another server.
This data is then output to the browser.A few more fields are then filled in, and the data is then again Post to the same web service via an AJAX POST.
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The form I want to post to has a dynamic boundary.Is there a to detect the boundary pre-POSTing?Also, do I need to send the data in the format of:
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Or can I set it up in pairs like: "var1=value1&var2=value2"...for all required form fields? What is the difference between the 2?
[code] I'm trying to post data on these two TextBoxes using HttpWebRequest method , Blow is the post data string [code] So when i send this request to the website , It only post the password but not the name , There's something causing conflict with the word name either 'name="name"' this line or something else.
View 26 Repliesi have just started learning about httpwebrequest and response to open webpages and get/post info. Anyways i have a working project that connects to a webbrowsewr useing a proxy but this does not workj for httpwebrequest. Im guessing its totally different for httpwebrequest but i have no idea how to work this :/
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i have problem on use HttpWebRequest with "POST" method.First, I access this link [URL] and go to the cart page.Then when I change the quantity to 2, I had see the live http header to use "POST" and submit the content to the server.I follow the header and write with vb2008, but I get the server return 503 error on the code that getting response,?
Here is my
Dim logincookie As CookieContainer
Dim response As HttpWebResponse
Dim tempCookies As New Cookie
Dim req As HttpWebRequest
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What I would like to know is how to obtain form input elements during an httpwebrequest?
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Is it possible to obtain these input elements during an httpwebrequest without having to view the html code?
I am making a web browser and I was wondering how I could create connections through proxies. Right now the browser only uses UDP packets, so any info specifically on that would be great.
View 8 RepliesProxies are HTTP and socks. How can I use them to surf internet? I know "iwebproxy " of .net but do not understand how to use them for this perpose.
View 1 RepliesWhat's the RegEx for IP : Port?
View 3 RepliesHow to set timeout time for Proxies.
i am using
dim w as new webclient
w.proxy= new system.net.webproxy("xxx.xxx.xxx.xxx.:xxx")
most of the time it says unable to connect or it throws any error msgs... when i check those proxy in internet, they seem to work well. only few proxies are working.
I have an application that has 4 WebBrowser control to monitor a commercial website. I would like each WebBrowser to be using its own proxy however it looks like the proxy setting affects all the browsers and cannot be set on an individual basis.
Is there a way to have individual proxies for each WebBrowser control?
Well I decided to try make a proxy checker, like Charion or Elite proxy checker. These programs accept large lists of proxies in the IP:PORT format, ping them tell you the response time see the screenshot of Elite Proxy Checker, im trying to make a simplified version of this program. [URL]I investigated and made my checker using Ping.SendAsync(ip, timeout, ip) method. It was only afterwards that I discovered that you can only Ping IP's using this method, not the ports as well. Ive spent a few hours trying to find the correct class/methods in order to be able to ping ports, reading different forum posts from experts they say its impossible to ping ports only IPS, can only use sockets to try open a connection with the port.
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This has been a huge issue for me for a long period of time. Endless searching on google and through the visual studio documentation has yielded no results. Here is the code I'm using to change my webbrowser proxy:[code]
View 4 RepliesI'm trying to implement proxy rotation within my vb 2008 ap & I wasn't very sure with where to start. I would like to have an empty message box where people can drag and drop their proxies or import their proxies into. Then the program will enable the user to surf via a web browser control.
View 2 RepliesI'm trying to run a specific test on my server using a program that can run multiple requests (using Webbrowser control) at the same time but with different proxy settings.What I am using now is working but only for one webbrowser control, im seeking advice for how to run multiple side-by-side.
<Runtime.InteropServices.DllImport("wininet.dll", SetLastError:=True)> _
Private Shared Function InternetSetOption(ByVal hInternet As IntPtr, ByVal dwOption As Integer, ByVal lpBuffer As IntPtr, ByVal lpdwBufferLength As Integer) As Boolean
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I was wondering if somone one could point me in the right direction on this.Basically I am making a proxy testing program. A user can supply a list of proxies to test. What i want to be able to do is have them be able to specify how many threads they want to run. Then have the program go through the list testing each one using the amount of threads supplied. Really not sure even where to start on this. Threadpooling?
View 2 RepliesI have been trying to implement proxies in a webbrowser control...
View 1 RepliesI have 5 proxies, 2 of them are standard and 3 of them requires a username and password.
Im using a webbrowser control. Can anyone point me to the right direction as to what codes i need to implement for both standard proxies and the ones that have user names and passwords?
How would I go about using a webbrowser to increase website hits and has the option of enabling proxies. I'm more concerned with the proxy part
View 10 Replies
