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README.md

AsyncOAuth

Portable Client Library and HttpClient based OAuth library, including all platform(for PCL as .NET 4.0, .NET 4.5, Silverlight4, Silverlight5, Windows Phone 7.5, Windows Phone 8.0, Windows Store Apps).

Install

using with NuGet, AsyncOAuth

PM> Install-Package AsyncOAuth

Usage

at first, you must initialize hash function(ApplicationStart etc...)

// Silverlight, Windows Phone, Console, Web, etc...
OAuthUtility.ComputeHash = (key, buffer) => { using (var hmac = new HMACSHA1(key)) { return hmac.ComputeHash(buffer); } };
 
// Windows Store Apps
AsyncOAuth.OAuthUtility.ComputeHash = (key, buffer) =>
{
    var crypt = Windows.Security.Cryptography.Core.MacAlgorithmProvider.OpenAlgorithm("HMAC_SHA1");
    var keyBuffer = Windows.Security.Cryptography.CryptographicBuffer.CreateFromByteArray(key);
    var cryptKey = crypt.CreateKey(keyBuffer);
 
    var dataBuffer = Windows.Security.Cryptography.CryptographicBuffer.CreateFromByteArray(buffer);
    var signBuffer = Windows.Security.Cryptography.Core.CryptographicEngine.Sign(cryptKey, dataBuffer);
 
    byte[] value;
    Windows.Security.Cryptography.CryptographicBuffer.CopyToByteArray(signBuffer, out value);
    return value;
};

Create HttpClient with OAuthMessageHandler

var client = new HttpClient(new OAuthMessageHandler("consumerKey", "consumerSecret", new AccessToken("accessToken", "accessTokenSecret")));
 
// shorthand(result is same above)
var client = OAuthUtility.CreateOAuthClient("consumerKey", "consumerSecret", new AccessToken("accessToken", "accessTokenSecret"));

operation same as HttpClient

// Get
var json = await client.GetStringAsync("http://api.twitter.com/1.1/statuses/home_timeline.json?count=" + count + "&page=" + page);
 
// Post
var content = new FormUrlEncodedContent(new[] { new KeyValuePair<string, string>("status", status) });
var response = await client.PostAsync("http://api.twitter.com/1.1/statuses/update.json", content);
var json = await response.Content.ReadAsStringAsync();
 
// Multi Post
var content = new MultipartFormDataContent();
content.Add(new StringContent(status), "\"status\"");
content.Add(new ByteArrayContent(media), "media[]", "\"" + fileName + "\"");
 
var response = await client.PostAsync("https://upload.twitter.com/1/statuses/update_with_media.json", content);
var json = await response.Content.ReadAsStringAsync();

Sample

more sample, please see AsyncOAuth.ConsoleApp(Twitter.cs, Hatena.cs), AsyncOAuth.WindowsStoreApp
sample contains authorize flow

// sample flow for Twitter authroize
public async static Task<AccessToken> AuthorizeSample(string consumerKey, string consumerSecret)
{
    // create authorizer
    var authorizer = new OAuthAuthorizer(consumerKey, consumerSecret);

    // get request token
    var tokenResponse = await authorizer.GetRequestToken("https://api.twitter.com/oauth/request_token");
    var requestToken = tokenResponse.Token;

    var pinRequestUrl = authorizer.BuildAuthorizeUrl("https://api.twitter.com/oauth/authorize", requestToken);

    // open browser and get PIN Code
    Process.Start(pinRequestUrl);

    // enter pin
    Console.WriteLine("ENTER PIN");
    var pinCode = Console.ReadLine();

    // get access token
    var accessTokenResponse = await authorizer.GetAccessToken("https://api.twitter.com/oauth/access_token", requestToken, pinCode);

    // save access token.
    var accessToken = accessTokenResponse.Token;
    Console.WriteLine("Key:" + accessToken.Key);
    Console.WriteLine("Secret:" + accessToken.Secret);

    return accessToken;
}

History

ver 0.7.0 - 2013-06-24

  • fixed, generate wrong OAuth signature when parameter-name mixed lower and upper.
  • fixed, generate wrong OAuth signature when get and querystring needs UrlEncode

ver.0.6.4 - 2013-05-27

  • update external library version.
  • improved:Token is serializable.

License

under MIT License

About

Portable Client Library and HttpClient based OAuth library, including all platform(for PCL).

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