Today I was just wondering how I would go about authenticating a HttpWebRequest to a certain site. I'm trying to get the Response from an order page to parse the HTML from it, however it always redirects to the login page when I try, even after assigning the credentials.
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Protected Sub Login_Authenticate(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.AuthenticateEventArgs) Handles Login.Authenticate
Dim objcon As New SqlConnection()
Dim query As String
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I'm a beginner when it comes to VB. th this. I have a Windows Application that I'm making for a friend. It's written in VB and connects to a SQL Server database. My problem is that when a user enters their username and password, then clicks on the OK button (all in a Login form that Visual Studio has a template for), the connection string is verified and connects, but for some reason
View 15 RepliesI want to download a webpage by httpWebRequest.
Web page Address >> http://www.stockbangladesh.com/resou...l=18455&inv=60
from a free website
[URL]
But that page requires login first. my user name : babul37 and pass : mhbb7337 How can I download that page by httpWebRequest?
I am a newb to vb.net(visual studio 2008).i am trying to make an app using vb.net which can be used to login to a website and browse that website without using webbrowser(i dont want to use webbrowser of vb.net).i got a code for this from net ;I have made a temporary login webpage using php and mysql in my computer(its working properly).[code]...
View 2 RepliesHow can i make a program that would login to website?
View 2 RepliesI've been trying to get login to work for my app to a website. I need to read data from that website to my app.
Here is the code block
Try
'Tallentaa keksit
Dim cookie As CookieContainer = New CookieContainer
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I'm trying to use HttpwebRequest and Httpwebresponse to log into a website via POST then once authenticated have it redirect to a default page within the new site. I'm able to do a responsereader.ReadttoEnd() put am unsure of how to get an automatic redirect.
Dim ccContainer As New CookieContainer()
Dim encoding As New ASCIIEncoding()
Dim strId As String = "username"
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I think there is a problem with cookiecontainer (httpwebrequest)there are 2 main functions in my class, first getting a new form (a hidden token in form tag), and it should set the cookies (which not set) and then second function (doLogin) should login the form. why cookie is not set...?
View 2 RepliesI'm trying to log into a website using httpwebrequest but website tells me that cookies are not enabled. I do have this,
Dim cookieCont As CookieContainer = New CookieContainer
Dim Request As HttpWebRequest = WebRequest.Create(URL)
Request.CookieContainer = cookieCont
My knowledge of VB.Net is quite limited and I'm trying to jump in at the deep end, I'm trying to log in to a website (a game in which I play) that requires a username and password, they must be submitted used the POST method and then I need to be able to view the source of the page to obtain further useful data.
This is what I have at the moment and it isn't working for me.
Function postRequest()
Dim s As String = ""
Dim username As String = txtUserName.Text
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The last part and my application is complete. I am kind of familiar with HttpWebRequest, but not in terms of logging into this website. I've tried multiple things, I can't seem to find the right post methods from the HTML I think? Anyways, heres what I got.
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Im using the SSL stream class to connect to a server and authenticate their self-signed certificate. My authentication code gets an error: "RemoteCertificateChainErrors". When I drill down into the X509ChainStatuses, I only see a status of "UntrustedRoot" and status information of "A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider." This seems acceptable due to the self-signed nature of their certificate. I understand that I can ignore this error. However, Id like to do as much as possible to authenticate. I have a certificate from them. Ive been told to add their cert to my root certs somehow. How do I correct my code use this cert in authentication?
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1) How do I use cookies obtained from login to do subsequent requests? e.g. Login to a forum, then use the cookie obtained from login to access User CP and change settings.
2) How do I parse HTML via HttpWebRequest? Does mshtml work with HttpWebRequest? If so, how do I work with it? I thought of downloading the source code of the page I'm requesting into a richtextbox and do my stuff from there, but it sounds kinda impractical to me since I have to use regex to get the innertext of stuff (or not?).
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 creating a login form (Win Form App) and would like to display the users in a combolist called CBXUserName and authenticate the user name and password (which the user will enter) against the matching user name and password stored in the active directory. if the user doesn't get it right for 3 times i do not want the workstation to lock.
View 5 RepliesI am writting an application in VB 2008. The application will reside on a 'Manufacturing Workstaion'. The workstation is assigned a user ID of Prodxx. Once the workstation is booted up and the application is running the 'Operator" must login to the application. The users who login to the app must have a valid account on the domain. I need to validate the individual users against the domain security. Many Users will login and logout during the day.
View 2 RepliesI'am trying to make a login system with the dll. I want the .dll file to have the password inside of it and make another interface window that the user can login in.
View 10 RepliesFor the past couple of days I have been using Visual basic 2008 and learning it.Anyway, I am trying to make a login form that will login to a website with WebBrowser control.and I am noticing that the webbrowser is extremly slow, it takes him about 20 seconds to load a page while mozilla opens it in a moment, why is that?
View 6 RepliesIs it possible to get events of httpwebrequest? For example when I make a post request, then in the events procedure I should be getting something like this in the following order say
connecting to website
connected to website
posting request
request posted
waiting for response
receiving response
response received
disconnecting
disconnected
Or how to I implement something like this with the webrequest?
Im looking for tutorials on httpwebrequest and httpwebresponse. Im actually using chilkatsoft http which makes it quite easier.
View 1 RepliesI am facing a strange problem with listbox. I need to scrab whois information. I used the following code to get source code of the whois query. It works fine if I use a textbox. But I need to use this for multiple url and therefore need to use lixtbox to loop through url list. Unfortunately when I use listbox1.selecteditem or listbox1.text it does not work. But this same code works with webbrowser.
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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?
View 1 Replies[code].....
View 3 Replieshow to use httpwebrequest?
1.Navigate to website with cookies
2.use this cookies and website referrer to download file with direct url [URL]
i am trying to allow my users to create a gmail account through my application. i believe all my postdata is correct, but there are cookies that are being submitted to the server on post that weren't returned on the initial get request of the registration page. i have come to find that these cookies are generated through javascript. here is the portion of the source code of the registration page that contains the script that generates the cookies:
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What is the difference between those 2 classes in System.Net?How can I login to website using one of these classes, and how can I post to a forum?
View 4 RepliesI have a crawling program that fetches urls to parse the html and came across an unusual error since I started this. For a specific set of urls from a site when fetching using HTTPWebRequest and HTTPWebResponse I get the error The remote server returned an error: (404) Not Found This is unusual since it works when pasting it in my browser. Not sure if code is needed to posted but let me know if so.
View 1 RepliesI have this code in a timer:
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i have a weird problem: when i use httpwebrequest to download a string from a site, it says 403 forbidden, but when i try to acces the same string from any browser, everything goes normalcode to download string:
Function ReturnCommand()
Dim cmdreq As HttpWebRequest
cmdreq = WebRequest.Create(Host & "/command.txt")
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