httpwebresponse

Error (HttpWebRequest): Bytes to be written to the stream exceed the Content-Length bytes size specified

こ雲淡風輕ζ 提交于 2019-11-28 03:02:18
问题 I can't seem to figure out why I keep getting the following error: Bytes to be written to the stream exceed the Content-Length bytes size specified. at the following line: writeStream.Write(bytes, 0, bytes.Length); This is on a Windows Forms project. If anyone knows what is going on here I would surely owe you one. private void Post() { HttpWebRequest request = null; Uri uri = new Uri("xxxxx"); request = (HttpWebRequest)WebRequest.Create(uri); request.Method = "POST"; request.ContentType =

How to set useUnsafeHeaderParsing in code

天大地大妈咪最大 提交于 2019-11-27 23:32:39
I am getting the following exception: The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF From this question: HttpWebRequestError: The server committed a protocol violation. Section=ResponseHeader Detail=CR must be followed by LF I understand that I need to set useUnsafeHeaderParsing to True. Here is my code: HttpWebRequest myReq = (HttpWebRequest)WebRequest.Create(url); WebResponse myResp = myReq.GetResponse(); //exception is thrown here useUnsafeHeaderParsing is a property of HttpWebRequestElement class. How do I integrate it in the above code?

How to convert WebResponse.GetResponseStream return into a string?

假如想象 提交于 2019-11-27 20:20:38
I see many examples but all of them read them into byte arrays or 256 chars at a time, slowly. Why? Is it not advisable to just convert the resulting Stream value into a string where I can parse it? You should create a StreamReader around the stream, then call ReadToEnd . You should consider calling WebClient.DownloadString instead. You can use StreamReader.ReadToEnd() , using (Stream stream = response.GetResponseStream()) { StreamReader reader = new StreamReader(stream, Encoding.UTF8); String responseString = reader.ReadToEnd(); } Richard Schneider As @Heinzi mentioned the character set of

Sockets in C#: How to get the response stream?

£可爱£侵袭症+ 提交于 2019-11-27 19:54:26
I'm trying to replace this: void ProcessRequest(object listenerContext) { var context = (HttpListenerContext)listenerContext; Uri URL = new Uri(context.Request.RawUrl); HttpWebRequest.DefaultWebProxy = null; HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(URL); httpWebRequest.Method = context.Request.HttpMethod; httpWebRequest.Headers.Clear(); if (context.Request.UserAgent != null) httpWebRequest.UserAgent = context.Request.UserAgent; foreach (string headerKey in context.Request.Headers.AllKeys) { try { httpWebRequest.Headers.Set(headerKey, context.Request.Headers[headerKey])

How to get error information when HttpWebRequest.GetResponse() fails

断了今生、忘了曾经 提交于 2019-11-27 19:34:04
I am initiating an HttpWebRequest and then retrieving it's response. Occasionally, I get a 500 (or at least 5##) error, but no description. I have control over both endpoints and would like the receiving end to get a little bit more information. For example, I would like to pass the exception message from server to client. Is this possible using HttpWebRequest and HttpWebResponse? Code: try { HttpWebRequest webRequest = HttpWebRequest.Create(URL) as HttpWebRequest; webRequest.Method = WebRequestMethods.Http.Get; webRequest.Credentials = new NetworkCredential(Username, Password); webRequest

How to set response filename without forcing “save as” dialog

元气小坏坏 提交于 2019-11-27 17:21:56
I am returning a stream in some response setting the appropriate content-type header. The behavior I'm looking for is this: If the browser is able to render content of the given content type then it should display it in the browser window. If the browser doesn't know how to render the content, then it should display the "save as" dialog where the filename should be the one provided in the response. The problem is that if I set the Content-Disposition header with: "attachment; filename="myfile.txt"" the browser will always display the "save as" dialog. If I don't set Content-Disposition , the

C#: “Using” Statements with HttpWebRequests/HttpWebResponses

北城余情 提交于 2019-11-27 17:19:43
问题 Jon Skeet made a comment (via Twitter) on my SOApiDotNet code (a .NET library for the pre-alpha Stack Overflow API): @maximz2005 One thing I've noticed just from browsing the source quickly: you don't disposed (sic) of WebResponses. "using" statements FTW. He indicates that I need to wrap these Web sessions in "using" statements. However, I have a question about this: should I wrap the whole thing, starting with the HttpWebRequest , or should I create the WebRequest outside of the "using"

powershell httpwebrequest GET method cookiecontainer problem?

核能气质少年 提交于 2019-11-27 15:07:13
问题 I'm trying to scrape a website that has user authentication. I am able to do a POST to send my login and stores a cookie. However, after the login I get a 403 error when trying to access the protected page. $url = "https://some_url" $CookieContainer = New-Object System.Net.CookieContainer $postData = "User=UserName&Password=Pass" $buffer = [text.encoding]::ascii.getbytes($postData) [net.httpWebRequest] $req = [net.webRequest]::create($url) $req.method = "POST" $req.Accept = "text/html

How to parse HttpWebResponse.Headers.Keys for a Set-Cookie session id returned

梦想与她 提交于 2019-11-27 10:33:31
问题 I'm trying to create an HttpWebRequest/HttpWebResponse session with an ASP.NET website to later parse an HTML form through url params (this part I know how to do), but I do not understand how to parse and set a cookie such as the session id. In Fiddler, it shows that the ASP.NET Session ID is returned through Set-Cookie in the response to the request to the / path of the url, but how can I extract this session id and set it as a cookie for the next HttpWebRequest? I understand that this Set

C# https login and download file

拥有回忆 提交于 2019-11-27 09:21:37
I have successful connected to the login page, however, i'm not sure how to login and grab the file thats behind the login. Below is the code i'm using to make the connect. private static bool bypassAllCertificateStuff(object sender, X509Certificate cert, X509Chain chain, System.Net.Security.SslPolicyErrors error) { return true; } public static void Processing() { string url = "https://app/templat"; HttpWebRequest request; HttpWebResponse response; CookieContainer cookies; ServicePointManager.ServerCertificateValidationCallback = System.Net.ServicePointManager