Develop Reference

Vimeo uploading. Cannot get complete_uri field in response

I've been fiddling quite a bit with my uploading to vimeo.
I've made a ticket request.
I've uploaded the file.
I've checked the file if its uploaded.
I need to run the method DELETE with the complete_uri response i should get from my ticket.
However, im not receiving any complete_URI from the ticket response.
Here is my code:
public static dynamic GenerateTicket()
{
const string apiUrl = "https://api.vimeo.com/me/videos?type=streaming";
var req = (HttpWebRequest)WebRequest.Create(apiUrl);
req.Accept = "application/vnd.vimeo.*+json;version=3.0";
req.Headers.Add(HttpRequestHeader.Authorization, "bearer " + AccessToken);
req.Method = "POST";
var res = (HttpWebResponse)req.GetResponse();
var dataStream = res.GetResponseStream();
var reader = new StreamReader(dataStream);
var result = Json.Decode(reader.ReadToEnd());
return result;
}
This response gives me:
form
ticket_id
upload_link
upload_link_secure
uri
user
In order to finish my upload i need to run step 4 in this guide: https://developer.vimeo.com/api/upload
Sending parameter type=streaming as body:
ASCIIEncoding encoding = new ASCIIEncoding();
string stringData = "type=streaming"; //place body here
byte[] data = encoding.GetBytes(stringData);
req.Method = "PUT";
req.ContentLength = data.Length;
Stream newStream = req.GetRequestStream();
newStream.Write(data, 0, data.Length);
newStream.Close();

At the moment, type=streaming must be sent in the body of the request, not as a url parameter.
This will probably change to allow either option.

the important point is :
"The first thing you need to do is request upload access for your application. You can do so from your My Apps page."
If you get all values without complete_uri, it means: you dont have an upload access token. So go to your apps and make an upload request

Login and download image with C#

I need some images from a portal and they are only accessible if I login to the portal.
I need to do it with a C# program. I don't know what username field and password field are, because they use POST method. After loging in I want to enter some URLs that contain the images I want.
What should I do?
For logging in I'm using:
HttpWebRequest httpWReq = (HttpWebRequest)WebRequest.Create(#"http://mysite.com");
ASCIIEncoding encoding = new ASCIIEncoding();
string postData = "UsernameFieldName=Something";
postData += "&PasswordFieldName=SomethingElse";
byte[] data = encoding.GetBytes(postData);
httpWReq.Method = "POST";
httpWReq.ContentType = "application/x-www-form-urlencoded";
httpWReq.ContentLength = data.Length;
using (Stream stream = httpWReq.GetRequestStream())
{
stream.Write(data, 0, data.Length);
}
HttpWebResponse response = (HttpWebResponse)httpWReq.GetResponse();
string responseString = new StreamReader(response.GetResponseStream()).ReadToEnd();
Then for downloading image which is in another page I use:
using (var client = new WebClient())
{
string FileName = #"image.jpg";
client.DownloadFile("http://mysite.com/Image?imgCode=12345", FileName);
}

I don’t have a complete solution but here are some details to get you started.
Figure out what are post field simply by looking at page source
Once you send request for login you’ll also need to find a way to accept authentication cookie and then send it in all subsequent requests because their application most probably uses cookies.
After you are logged in you can download images like this
string imageFile = #"c:\image.jpg";
using (System.Net.WebClient client = new System.Net.WebClient())
{
client.DownloadFile("http://www.somewebsite.com/someimage.jpg", imageFile);
}
Here are couple examples to get you started with http posts in C#
HTTP request with post

Copy a PDF Stream to File

I'm calling a routine in PHP (TCPDF) from C# via WebRequest using StreamReader. The PDF file is returned as a stream and stored in a string (obv). I know the data being returned to the string is actually a PDF file, as I've tested it in PHP. I'm having a hard time writing the string to a file and actually getting a valid PDF in C#. I know it has something to do with the way I'm trying to encode the file, but the several things I've tried have resulted in 'Not today, Padre' (i.e. they didn't work)
Here's the class I'm using to perform the request (thanks to user 'Paramiliar' for the example I'm using/borrowed/stole):
public class httpPostData
{
WebRequest request;
WebResponse response;
public string senddata(string url, string postdata)
{
// create the request to the url passed in the paramaters
request = (WebRequest)WebRequest.Create(url);
// set the method to POST
request.Method = "POST";
// set the content type and the content length
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postdata.Length;
// convert the post data into a byte array
byte[] byteData = Encoding.UTF8.GetBytes(postdata);
// get the request stream and write the data to it
Stream dataStream = request.GetRequestStream();
dataStream.Write(byteData, 0, byteData.Length);
dataStream.Close();
// get the response
response = request.GetResponse();
dataStream = response.GetResponseStream();
StreamReader reader = new StreamReader(dataStream);
// read the response
string serverresponse = reader.ReadToEnd();
//Console.WriteLine(serverresponse);
reader.Close();
dataStream.Close();
response.Close();
return serverresponse;
}
} // end class httpPostData
...and my call to it
httpPostData myPost = new httpPostData();
// postData defined (not shown)
string response = myPost.senddata("http://www.example.com/pdf.php", postData);
In case it isn't clear, I'm stuck writing string response to a valid .pdf file. I've tried this (Thanks to user Adrian):
static public void SaveStreamToFile(string fileFullPath, Stream stream)
{
if (stream.Length == 0) return;
// Create a FileStream object to write a stream to a file
using (FileStream fileStream = System.IO.File.Create(fileFullPath, (int)stream.Length))
{
// Fill the bytes[] array with the stream data
byte[] bytesInStream = new byte[stream.Length];
stream.Read(bytesInStream, 0, (int)bytesInStream.Length);
// Use FileStream object to write to the specified file
fileStream.Write(bytesInStream, 0, bytesInStream.Length);
}
}
..and the call to it:
string location = "C:\\myLocation\\";
SaveStreamToFile(location, response); // <<-- this throws an error b/c 'response' is a string, not a stream. New to C# and having some basic issues with things like this
I think I'm close...a nudge in the right direction would be greatly appreciated.

You can use WebClient. Use the method DownloadFile, or the async ones.
Have fun!
Fernando.-
Sorry, I haven't read your comments till now.
I guess you have already done this...
But this may help you (just replace urls and paths) (from: http://msdn.microsoft.com/en-us/library/ez801hhe.aspx )
string remoteUri = "http://www.contoso.com/library/homepage/images/";
string fileName = "ms-banner.gif", myStringWebResource = null;
// Create a new WebClient instance.
WebClient myWebClient = new WebClient();
// Concatenate the domain with the Web resource filename.
myStringWebResource = remoteUri + fileName;
Console.WriteLine("Downloading File \"{0}\" from \"{1}\" .......\n\n", fileName, myStringWebResource);
// Download the Web resource and save it into the current filesystem folder.
myWebClient.DownloadFile(myStringWebResource,fileName);
Console.WriteLine("Successfully Downloaded File \"{0}\" from \"{1}\"", fileName, myStringWebResource);
Console.WriteLine("\nDownloaded file saved in the following file system folder:\n\t" + Application.StartupPath);

.NET equivalent of curl to upload a file to REST API?

I need to upload an ics file to a REST API. The only example given is a curl command.
The command used to upload the file using curl looks like this:
curl --user {username}:{password} --upload-file /tmp/myappointments.ics http://localhost:7070/home/john.doe/calendar?fmt=ics
How can I do this using a HttpWebRequest in C# ?
Also note that I may only have the ics as a string (not the actual file).

I managed to get a working solution. The quirk was to set the method on the request to PUT instead of POST. Here is an example of the code I used:
var strICS = "text file content";
byte[] data = Encoding.UTF8.GetBytes (strICS);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create ("http://someurl.com");
request.PreAuthenticate = true;
request.Credentials = new NetworkCredential ("username", "password");;
request.Method = "PUT";
request.ContentType = "text/calendar";
request.ContentLength = data.Length;
using (Stream stream = request.GetRequestStream ()) {
stream.Write (data, 0, data.Length);
}
var response = (HttpWebResponse)request.GetResponse ();
response.Close ();

Error when sending HttpWebRequest from .NET to php site

Despite trying lots of things (see below), I can't get rid of the "Bytes to be written to the stream exceed the Content-Length bytes size specified." error that's thrown in
writer.Close();
This is the code that tries to post data from an ASP.NET to a php site. The script works fine as long as there are no special characters in the code - note the German Umlaut in 'Wörld'.
Uri uri = new Uri("http://mydomain/test.php");
string data = #"data=Hello Wörld";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
request.Method = WebRequestMethods.Http.Post;
request.ContentLength = data.Length;
request.ContentType = "application/x-www-form-urlencoded";
StreamWriter writer = new StreamWriter(request.GetRequestStream());
writer.Write(data);
writer.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
string tmp = reader.ReadToEnd();
response.Close();
Response.Write(tmp);
I have tried different variations using UTF-8 encodings, like:
request.ContentLength = System.Text.Encoding.UTF8.GetByteCount(data);
and/or
StreamWriter writer = new StreamWriter(request.GetRequestStream(), Encoding.UTF8);
I have also tried to convert the data to UTF-8 before sending it (somewhat ugly):
data = System.Text.Encoding.UTF8.GetString(System.Text.Encoding.Convert(System.Text.Encoding.UTF8, System.Text.Encoding.UTF8, System.Text.Encoding.UTF8.GetBytes(data)));
Yet the error remains. My feeling is that I just don't get the UTF-8 handling right. Any help is greatly appreciated, also any hint where I can find a perfectly working script that posts to php from ASP.NET (server side).

use
byte[] bdata = Encoding.UTF8.GetBytes(data);
and
request.ContentLength = bdata.Length;
and
Stream writer = request.GetRequestStream();
writer.Write(bdata, 0, bdata.Length);
writer.Close();