I am trying to create a new calendar in my principal's home folder using SabreDav.
I couldn't find how to achieve this - is it even possible ?
UPDATE:
I found out about MKCALENDAR method, but the following returns an "abandoned" request error:
<C:mkcalendar xmlns:D="DAV:" xmlns:C="urn:ietf:params:xml:ns:caldav" xmlns:ical="http://apple.com/ns/ical/" >"
<D:set>
<D:prop>
<D:displayname>cal Display Name</D:displayname>
<ical:calendar-color>cal Color</ical:calendar-color>
</D:prop>
</D:set>
</C:mkcalendar>
Sending it with a HttpWebRequest fails with a canceled request messgage...
Thanks in advance!
UPDATE 2:
Some more details:
HttpWebRequest Request = (HttpWebRequest)HttpWebRequest.Create("http://my.sabredavcalendar.srv/calendarserver.php/calendars/admin/my_new_calendar/");
Request.Method = "MKCALENDAR";
Request..Credentials = new NetworkCredentials("usr", "pwd");
Request.ContentType = "application/xml";
string body = "<C:mkcalendar [.....] </C:mkcalendar>";
Request.ContentLength = body.Length;
// ---
// The using block throws an error...
using (Stream reqStream = Request.GetRequestStream()) {
byte[] encodedBody = Encoding.UTF8.GetBytes(body);
reqStream.Write(encodedBody, 0, encodedBody.Length);
reqStream.Close();
}
Response = (HttpWebResponse)Request.GetResponse();
The error message I get is
The request was aborted: The request was canceled
On the server side, here is the access log:
192.168.1.200 - - [06/Jul/2015:09:51:48 +0200] "MKCALENDAR /calendarserver.php/calendars/admin/my_new_calendar/ HTTP/1.1" 400 25 "-" "-"
The error log is empty... so it seems I get a "bad request" response which is not caught when preparing the request?!
UPDATE 3: the body contains special characters as "éàê..." which is why the contentlength part was wrong !
I take hnh's comment as an answer: the problem was indeed the Request.ContentLength = body.Length.
Corrected code is:
Request.ContentLength = Encoding.UTF8.GetByteCount(body);
Related
I've made an experimental email and password system using post requests to my Wix site API and I've verified it works through curl and postman. When trying to use it in my VB.NET app however I get the error: "The underlying connection was closed: An unexpected error occurred on a receive." I already previously ran into a "Could not create SSL/TLS secure channel" error but that was resolved when I moved the .NET framework for the project to 4.7.1 and made sure SecurityProtocol was set to SystemDefault as Wix seems to use TLS 1.3. Now however I'm getting this error on receive that I have no idea how to resolve as everything in the request seems to look ok:
ServicePointManager.SecurityProtocol = SecurityProtocolType.SystemDefault
Dim req As HttpWebRequest = DirectCast(WebRequest.Create(New Uri("https://xxxxx.com/mysite/_functions/check?email=" & email & "&pass=" & LCase(passHash))), HttpWebRequest)
req.Method = "POST"
req.ContentType = "none"
req.ContentLength = 0
req.Host = "test"
req.KeepAlive = True
Dim result As HttpWebResponse = req.GetResponse()
The error is thrown when running 'req.GetReponse()'.
After looking at countless versions of sample code for .NET POST requests and questions about this error but everyone seems to suggest setting the security prococol type, which I have done and setting it as the system default is the only way I don't get an internal server error status. Another was setting KeepAlive to false, which I have also tried but didn't make any difference.
What could be the problem here? Here is what's included in the postman header if this is of help:
Ok so eventually I ended up changing my code to use GetResponseAsync() instead of GetResponse() (not that it made any difference to the problem) and set the protocol type back to Tls12 on .NET 4.8. In the end it seemed that having req.Host set was what was causing the issue with the response, Wix doesn't seem to like it. I also added some extra settings to the request but ultimately they make no difference to the response. Here is the final working code:
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12
Dim req As HttpWebRequest = WebRequest.CreateHttp("https://example.com/check?email=" & email & "&pass=" & LCase(passHash))
req.Method = "POST"
req.ContentType = "none"
req.ContentLength = 0
req.KeepAlive = True
req.CookieContainer = New CookieContainer()
req.UserAgent = "Test"
req.Accept = "ext/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
req.Headers.Add(HttpRequestHeader.AcceptLanguage, "en-US;q=0.9,en;q=0.5")
req.Headers.Add(HttpRequestHeader.AcceptEncoding, "gzip, deflate;q=0.8")
req.Headers.Add(HttpRequestHeader.CacheControl, "no-cache")
Dim statusCode As HttpStatusCode = Nothing
Try
Using result As HttpWebResponse = CType(Await req.GetResponseAsync(), HttpWebResponse)
statusCode = result.StatusCode
End Using
If statusCode = HttpStatusCode.OK Then
MsgBox("Valid")
Else
Dim response As String = New StreamReader(req.GetResponse().GetResponseStream()).ReadToEnd()
MsgBox(response)
End If
Catch webEx As WebException
MsgBox(New StreamReader(webEx.Response.GetResponseStream()).ReadToEnd())
End Try
I'm a totally beginner with webrequest, so I have no idea about what cause the error I get.
I try to login on a form following the microsoft tutorial for webrequest, but when I want to get the server response, I have the following error :
"the remote server returned an error (404) not found"
So I know that the URL I use actually exist and then wonder which part of the code is bad. Maybe it's because I'm doing an HTTPS request unlike the tutorial and it changes something ?
Also, I'm a little confused by getting directly the answer from the server : shouldn't there be kind of a trigger to know when the server answered ?
Dim request = WebRequest.Create("https://ssl.vocabell.com/mytica2/login")
request.Credentials = CredentialCache.DefaultCredentials
request.Method = "POST"
Dim byteArray = Encoding.UTF8.GetBytes("_username=x&_password=x")
request.ContentType = "application/x-www-form-urlencoded"
request.ContentLength = byteArray.Length
Dim dataStream = request.GetRequestStream()
dataStream.Write(byteArray, 0, byteArray.Length)
dataStream.Close()
Dim reponse = request.GetResponse() 'ERROR
MsgBox(CType(reponse, HttpWebResponse).StatusDescription)
Using ds = reponse.GetResponseStream
Dim reader = New StreamReader(ds)
MsgBox(reader.ReadToEnd)
End Using
reponse.Close()
Thank you for your time, and if you have any relevant tutorial on the topic I would be glad to read it !
The page you've mentioned does exist and uses HTTPS, but if you look at the form tag within it, it's like this:
<form class="login-form form-horizontal" action="/mytica2/login_check" method="POST">
This means it doesn't post the form back to the same URL as the page, instead it sends it to the URL contained within that "action" attribute. If you're trying to use your code to simulate the submission of the login form then it looks like you need to send your POST request to https://ssl.vocabell.com/mytica2/login_check instead.
I am creating a console application in C# to check if URL is up and running using HttpWebRequest.
Note that the URL is generated by IBM's ICN (IBM Content Navigator). It is NOT hosted using IIS.
I am receiving the below error while trying to get HttpWebResponse from my C# console application.
Message: "The remote server returned an error: (500) Internal Server Error."
Status: ProtocolError
Below code is not working:
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(myurl);
request.Credentials = CredentialCache.DefaultCredentials;
request.Method = "GET";
request.Accept = "text/plain";
request.ContentType = "text/plain;charset=UTF-8";
request.Headers.Add("Accept-Language", "en-US");
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
if (response != null && response.StatusCode == HttpStatusCode.OK)
{
//Do some operations
}
else
{
//Do some operations
}
}
Please let me know if additional info. is required.
Any help or suggestions to solve this issue are appreciated.
Thanks in advance.
When attempting to add a value to the header of an HTTP request, I get the following error:
Specified value does not have a ':' separator. Parameter name: header
To add the header I am using the following code:
Dim request As HttpWebRequest = WebRequest.Create(url)
Dim soapXML As New XmlDocument()
soapXML.LoadXml(soapEnvelope)
request.Headers.Add("SOAPAction", action)
request.Method = "POST"
request.ContentType = "text/xml;charset=""utf-8"""
request.Accept = "text/xml"
Using stream As Stream = request.GetRequestStream()
soapXML.Save(stream)
End Using
I have been looking all over the place and haven't found anybody who has had any similar errors, outside of this SO question: using httpRequest headers?
Which didn't help much.
Does anybody know what I might be doing wrong here?
EDIT 1: Added all the code that I currently have that creates my web request.
I'm trying to send a findItemsAdvanced request to the eBay API from VB 2012 .NET - however each time I get an "internal server error" with errorcode "500" upon request.GetResponse() where request = System.Net.WebRequest.Create("http://svcs.ebay.com/services/search/FindingService/v1"). I do the request via POST and in XML format with the lines
Dim Xml_bytes() As Byte = System.Text.Encoding.UTF8.GetBytes(xmlstr)
request = System.Net.WebRequest.Create("http://svcs.ebay.com/services/search/FindingService/v1")
'... code setting HEADERS, see below
request.Method = "POST"
request.ContentLength = Xml_bytes.Length
request.ContentType = "text/xml"
Dim requestStream As System.IO.Stream = request.GetRequestStream()
requestStream.Write(Xml_bytes, 0, Xml_bytes.Length)
requestStream.Close()
The code setting the headers I left out, instead here the actual finished headers I supply:
X-EBAY-SOA-SERVICE-NAME: FindingService
X-EBAY-SOA-OPERATION-NAME: findItemsAdvanced
X-EBAY-SOA-SERVICE-VERSION: 1.0.0
X-EBAY-SOA-GLOBAL-ID: EBAY-DE
X-EBAY-SOA-SECURITY-APPNAME: ****
X-EBAY-SOA-REQUEST-DATA-FORMAT: XML
Content-Type: text/xml
And finally the actual XML code which is supplied (through xmlstr var above):
<?xml version='1.0' encoding='utf-8'?>
<findItemsAdancedRequest xmlns='http://www.ebay.com/marketplace/search/v1/services'>
<keywords>caddy</keywords>
<categoryId>77994</categoryId>
<Version>779</Version>
<paginationInput><entriesPerPage>10</entriesPerPage>
</paginationInput>
</findItemsAdvancedRequest>
My main problem is: it does work perfectly with findItemsByKeywords! With the exact same code, only changing the find method and leaving out the <categoryId>77994</categoryId>.
What I tried to do:
different sites (US, german,..)
different categories and keywords.
live AND sandbox APIs with the correct appIDs
including or excluding X-EBAY-SOA-RESPONSE-DATA-FORMAT and/or
X-EBAY-SOA-REQUEST-DATA-FORMAT from the header
It's always the same: it works fine with findItemsByKeyword but I get the "internal server error" with findItemsAdvanced
I have run out of ideas - any suggestions?
Thanks!