85 lines
3.5 KiB
C#
85 lines
3.5 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Web;
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using AppLimit.CloudComputing.SharpBox.Common.Net.oAuth.Context;
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using AppLimit.CloudComputing.SharpBox.Common.Net.oAuth.Token;
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using AppLimit.CloudComputing.SharpBox.Common.Net.Web;
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namespace AppLimit.CloudComputing.SharpBox.Common.Net.oAuth.Impl
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{
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internal class OAuthUrlGenerator
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{
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public static string GenerateRequestTokenUrl(string baseRequestTokenUrl, OAuthConsumerContext context)
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{
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return GenerateSignedUrl(baseRequestTokenUrl, WebRequestMethodsEx.Http.Get, context, null);
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}
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public static string GenerateAuthorizationUrl(string baseAuthorizeUrl, string callbackUrl, OAuthToken requestToken)
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{
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var sb = new StringBuilder(baseAuthorizeUrl);
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sb.AppendFormat("?oauth_token={0}", requestToken.TokenKey);
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sb.AppendFormat("&oauth_callback={0}", OAuthBase.UrlEncode(callbackUrl, '.'));
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return sb.ToString();
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}
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public static string GenerateAccessTokenUrl(string baseAccessTokenUrl, OAuthConsumerContext context, OAuthToken requestToken)
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{
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return GenerateSignedUrl(baseAccessTokenUrl, WebRequestMethodsEx.Http.Get, context, requestToken);
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}
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private static string GenerateSignedUrl(string baseRequestTokenUrl, string method, OAuthConsumerContext context, OAuthToken token)
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{
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string normalizedUrl;
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string normalizedRequestParameters;
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var oAuth = new OAuthBase();
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var nonce = oAuth.GenerateNonce();
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var timeStamp = oAuth.GenerateTimeStamp();
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var sig = oAuth.GenerateSignature(new Uri(baseRequestTokenUrl),
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context.ConsumerKey, context.ConsumerSecret,
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token == null ? string.Empty : token.TokenKey, token == null ? string.Empty : token.TokenSecret,
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method, timeStamp, nonce,
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context.SignatureMethod,
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out normalizedUrl, out normalizedRequestParameters);
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//
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// The signature as self has to be encoded to be ensure that no not url compatibale characters
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// will be used. The SHA1 hash can contain a bunch of this characters
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//
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sig = HttpUtility.UrlEncode(sig);
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var sb = new StringBuilder(normalizedUrl);
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sb.AppendFormat("?");
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sb.AppendFormat(normalizedRequestParameters);
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sb.AppendFormat("&oauth_signature={0}", sig);
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return sb.ToString();
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}
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public static string GenerateSignedUrl(string baseResourceUrl, string method, OAuthConsumerContext context, OAuthToken token, Dictionary<string, string> urlParameter)
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{
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var sb = new StringBuilder(baseResourceUrl);
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if (urlParameter != null)
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{
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sb.Append('?');
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foreach (var kvp in urlParameter)
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{
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if (sb[sb.Length - 1] == '?')
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sb.AppendFormat("{0}={1}", kvp.Key, OAuthBase.UrlEncode(kvp.Value));
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else
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sb.AppendFormat("&{0}={1}", kvp.Key, OAuthBase.UrlEncode(kvp.Value));
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}
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}
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return GenerateSignedUrl(sb.ToString(), method, context, token);
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}
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}
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}
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