private void AddCommonParams <T>(IAliyunRequest <T> request, TopDictionary parameters) where T : AliyunResponse
{
String[] strArray = request.GetApiName().Split('.');
if (strArray.Length < 5)
{
throw new TopException("Wrong api name.");
}
String action = strArray[3];
parameters.Add("Action", action);
String version = strArray[4];
parameters.Add("Version", version);
parameters.Add("AccessKeyId", accessKeyId);
parameters.Add("Timestamp", FormatIso8601Date(DateTime.Now));
parameters.Add("SignatureMethod", "HMAC-SHA1");
parameters.Add("SignatureVersion", "1.0");
parameters.Add("SignatureNonce", Guid.NewGuid().ToString()); // 可以使用GUID作为SignatureNonce
parameters.Add("Format", format);
// 计算签名，并将签名结果加入请求参数中
parameters.Add("Signature", ComputeSignature(parameters));
}
public T Execute <T>(IAliyunRequest <T> request, string session, DateTime timestamp) where T : AliyunResponse
{
return(DoExecute <T>(request, session, timestamp));
}
public T Execute <T>(IAliyunRequest <T> request, string session) where T : AliyunResponse
{
return(Execute <T>(request, session, DateTime.Now));
}
public T Execute <T>(IAliyunRequest <T> request) where T : AliyunResponse
{
return(Execute <T>(request, null));
}
private T DoExecute <T>(IAliyunRequest <T> request, string session, DateTime timestamp) where T : AliyunResponse
{
// 提前检查业务参数
try
{
request.Validate();
}
catch (TopException e)
{
return(CreateErrorResponse <T>(e.ErrorCode, e.ErrorMsg));
}
// 添加协议级请求参数
TopDictionary txtParams = new TopDictionary(request.GetParameters());
txtParams.AddAll(this.systemParameters);
AddCommonParams(request, txtParams);
string reqUrl = webUtils.BuildGetUrl(this.serverUrl, txtParams);
try
{
string body;
if (request is IAliyunUploadRequest <T> ) // 是否需要上传文件
{
IAliyunUploadRequest <T> uRequest = (IAliyunUploadRequest <T>)request;
IDictionary <string, FileItem> fileParams = TopUtils.CleanupDictionary(uRequest.GetFileParameters());
body = webUtils.DoPost(this.serverUrl.TrimEnd('/'), txtParams, fileParams);
}
else
{
body = webUtils.DoPost(this.serverUrl.TrimEnd('/'), txtParams);
}
// 解释响应结果
T rsp;
if (disableParser)
{
rsp = Activator.CreateInstance <T>();
rsp.Body = body;
}
else
{
if (FORMAT_XML.Equals(format))
{
IAliyunParser tp = new AliyunXmlParser();
rsp = tp.Parse <T>(body);
}
else
{
IAliyunParser tp = new AliyunJsonParser();
rsp = tp.Parse <T>(body);
}
}
// 追踪错误的请求
if (!disableTrace && rsp.IsError)
{
StringBuilder sb = new StringBuilder(reqUrl).Append(" response error!\r\n").Append(rsp.Body);
topLogger.Warn(sb.ToString());
}
return(rsp);
}
catch (Exception e)
{
if (!disableTrace)
{
StringBuilder sb = new StringBuilder(reqUrl).Append(" request error!\r\n").Append(e.StackTrace);
topLogger.Error(sb.ToString());
}
throw e;
}
}
