private string GenerateSignature(string resourceUrl, TKMethod method, string oauthNonce, string oauthTimestamp, SortedDictionary <string, string> requestParameters)
{
// パラメータ集合にoauth用の値を加える。
requestParameters.Add("oauth_consumer_key", consumerKey);
requestParameters.Add("oauth_nonce", oauthNonce);
requestParameters.Add("oauth_signature_method", OauthSignatureMethod);
requestParameters.Add("oauth_timestamp", oauthTimestamp);
requestParameters.Add("oauth_token", accessToken);
requestParameters.Add("oauth_version", OauthVersion);
var sigBaseString = ToWebString(requestParameters);
/*
* method と url と パラメータ列を&で結合
*/
var signatureBaseString = string.Concat(
method.ToString(),
"&",
Uri.EscapeDataString(resourceUrl),
"&",
Uri.EscapeDataString(sigBaseString)
);
// consumer secret と access secret を結合、
var compositeKey = string.Concat(Uri.EscapeDataString(consumerKeySecret), "&", Uri.EscapeDataString(accessTokenSecret));
var oauthSignature = string.Empty;
using (var hasher = new HMACSHA1(Encoding.ASCII.GetBytes(compositeKey)))
{
oauthSignature = Convert.ToBase64String(
hasher.ComputeHash(Encoding.ASCII.GetBytes(signatureBaseString)));
}
return(oauthSignature);
}
/*
* 与えられたTwitter API urlに対し、指定したHTTPメソッドでアクセスを行う。
*/
public IEnumerator GenerateAccessCoroutine(
string resourceUrl,
TKMethod method,
SortedDictionary <string, string> urlQueryParameters,
SortedDictionary <string, string> bodyParameters,
Action <string, int, Dictionary <string, string>, string> succeeded,
Action <string, int, TwitterAPI.APIError, Dictionary <string, string> > failed
)
{
if (urlQueryParameters == null)
{
urlQueryParameters = new SortedDictionary <string, string>();
}
if (bodyParameters == null)
{
bodyParameters = new SortedDictionary <string, string>();
}
/*
* collect all parameters.
*/
var allParameters = new SortedDictionary <string, string>();
foreach (var item in urlQueryParameters)
{
allParameters[item.Key] = item.Value;
}
foreach (var item in bodyParameters)
{
allParameters[item.Key] = item.Value;
}
var oauthNonce = GenerateNonce();
var oauthTimestamp = GenerateTimestamp();
var oauthSignature = GenerateSignature(resourceUrl, method, oauthNonce, oauthTimestamp, allParameters);
/*
* generate authorization header.
*/
const string headerFormat = "OAuth oauth_consumer_key=\"{0}\", oauth_nonce=\"{1}\", " + "oauth_signature=\"{2}\", oauth_signature_method=\"{3}\", " + "oauth_timestamp=\"{4}\", oauth_token=\"{5}\", " + "oauth_version=\"{6}\"";
var authHeader = string.Format(headerFormat,
Uri.EscapeDataString(consumerKey),
Uri.EscapeDataString(oauthNonce),
Uri.EscapeDataString(oauthSignature),
Uri.EscapeDataString(OauthSignatureMethod),
Uri.EscapeDataString(oauthTimestamp),
Uri.EscapeDataString(accessToken),
Uri.EscapeDataString(OauthVersion)
);
// Debug.Log("authHeader:" + authHeader);
var reqCon = new TKHTTPConnection();
IEnumerator requestCor = null;
switch (method)
{
case TKMethod.GET:
{
requestCor = reqCon.Get(
"twitterCon_Get_" + Guid.NewGuid().ToString(),
new Dictionary <string, string>
{
{ "Authorization", authHeader }
},
resourceUrl + GenerateQueryParameters(urlQueryParameters),
succeeded,
(conId, code, reason, response) =>
{
TwitterAPI.APIError error = null;
try
{
error = JsonUtility.FromJson <TwitterAPI.APIError>(reason);
}
catch
{
error = new TwitterAPI.APIError()
{
errors = new TwitterAPI.APIError.Error[1]
{
new TwitterAPI.APIError.Error()
{
code = code,
message = reason
}
}
};
}
failed(conId, code, error, response);
}
);
break;
}
case TKMethod.POST:
{
var pairArray = new List <string>();
foreach (var pair in bodyParameters)
{
var kv = "\"" + pair.Key + "\":\"" + pair.Value + "\"";
pairArray.Add(kv);
}
var data = "{" + string.Join(",", pairArray.ToArray()) + "}";
requestCor = reqCon.Post(
"twitterCon_Post_" + Guid.NewGuid().ToString(),
new Dictionary <string, string>
{
{ "Authorization", authHeader },
},
resourceUrl + GenerateQueryParameters(bodyParameters),
data,
succeeded,
(conId, code, reason, response) =>
{
TwitterAPI.APIError error = null;
try
{
error = JsonUtility.FromJson <TwitterAPI.APIError>(reason);
}
catch
{
error = new TwitterAPI.APIError()
{
errors = new TwitterAPI.APIError.Error[1]
{
new TwitterAPI.APIError.Error()
{
code = code,
message = reason
}
}
};
}
failed(conId, code, error, response);
}
);
break;
}
}
while (requestCor.MoveNext())
{
yield return(null);
}
}
