public ProgressContent(HttpContent innerContent, ProgressMessageHandler handler, HttpRequestMessage request)
{
Contract.Assert(innerContent != null);
Contract.Assert(handler != null);
Contract.Assert(request != null);
_innerContent = innerContent;
_handler = handler;
_request = request;
//innerContent.Headers.CopyTo(Headers);
}
public ProgressStream(Stream innerStream, ProgressMessageHandler handler, HttpRequestMessage request, HttpResponseMessage response)
: base(innerStream)
{
Contract.Assert(handler != null);
Contract.Assert(request != null);
if (request.Content != null)
{
_totalBytesToSend = request.Content.Headers.ContentLength;
}
if (response != null && response.Content != null)
{
_totalBytesToReceive = response.Content.Headers.ContentLength;
}
_handler = handler;
_request = request;
}
public static async Task <APIResult> UploadImageAsync(string filename,
HttpProgressDelegate onHttpRequestProgress,
HttpProgressDelegate onHttpResponseProgress)
{
APIResult fooAPIResult;
using (HttpClientHandler handler = new HttpClientHandler())
{
// System.Net.Http.Formatting.Extension
ProgressMessageHandler progressMessageHandler = new ProgressMessageHandler();
progressMessageHandler.InnerHandler = handler;
progressMessageHandler.HttpReceiveProgress += new EventHandler <HttpProgressEventArgs>(onHttpResponseProgress);
progressMessageHandler.HttpSendProgress += new EventHandler <HttpProgressEventArgs>(onHttpRequestProgress);
//progressMessageHandler.HttpReceiveProgress += (s, e) =>
//{
// Console.WriteLine($"Receive : {e.ProgressPercentage}");
//};
//progressMessageHandler.HttpSendProgress += (s, e) =>
//{
// Console.WriteLine($"Send : {e.ProgressPercentage}");
//};
//progressMessageHandler.HttpReceiveProgress += HttpReceiveProgress;
//progressMessageHandler.HttpSendProgress += HttpSendProgress;
using (HttpClient client = new HttpClient(progressMessageHandler))
{
try
{
#region 呼叫遠端 Web API
string FooUrl = $"http://vulcanwebapi.azurewebsites.net/api/Upload";
HttpResponseMessage response = null;
#region 設定相關網址內容
var fooFullUrl = $"{FooUrl}";
// Accept 用於宣告客戶端要求服務端回應的文件型態 (底下兩種方法皆可任選其一來使用)
//client.DefaultRequestHeaders.Accept.TryParseAdd("application/json");
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
// Content-Type 用於宣告遞送給對方的文件型態
//client.DefaultRequestHeaders.TryAddWithoutValidation("Content-Type", "application/json");
#region 將檔案上傳到網路伺服器上(使用 Multipart 的規範)
// 規格說明請參考 https://www.w3.org/Protocols/rfc1341/7_2_Multipart.html
using (var content = new MultipartFormDataContent())
{
var rootPath = Path.GetDirectoryName(Assembly.GetEntryAssembly().Location);
// 取得這個圖片檔案的完整路徑
var path = Path.Combine(rootPath, filename);
// 開啟這個圖片檔案，並且讀取其內容
using (var fs = File.Open(path, FileMode.Open))
{
var fooSt = $"My{filename}";
var streamContent = new StreamContent(fs);
streamContent.Headers.Add("Content-Type", "application/octet-stream");
streamContent.Headers.Add("Content-Disposition", "form-data; name=\"files\"; filename=\"" + fooSt + "\"");
content.Add(streamContent, "file", filename);
// 上傳到遠端伺服器上
response = await client.PostAsync(fooFullUrl, content);
}
}
#endregion
#endregion
#endregion
#region 處理呼叫完成 Web API 之後的回報結果
if (response != null)
{
if (response.IsSuccessStatusCode == true)
{
// 取得呼叫完成 API 後的回報內容
String strResult = await response.Content.ReadAsStringAsync();
fooAPIResult = JsonConvert.DeserializeObject <APIResult>(strResult, new JsonSerializerSettings {
MetadataPropertyHandling = MetadataPropertyHandling.Ignore
});
}
else
{
fooAPIResult = new APIResult
{
Success = false,
Message = string.Format("Error Code:{0}, Error Message:{1}", response.StatusCode, response.RequestMessage),
Payload = null,
};
}
}
else
{
fooAPIResult = new APIResult
{
Success = false,
Message = "應用程式呼叫 API 發生異常",
Payload = null,
};
}
#endregion
}
catch (Exception ex)
{
fooAPIResult = new APIResult
{
Success = false,
Message = ex.Message,
Payload = ex,
};
}
}
}
return(fooAPIResult);
}
private static async Task <APIResult> DownloadImageAsync(string filename,
HttpProgressDelegate onHttpRequestProgress,
HttpProgressDelegate onHttpResponseProgress)
{
string ImgFilePath = $"My_{filename}";
ImgFilePath = Path.Combine(Path.GetDirectoryName(Assembly.GetEntryAssembly().Location), ImgFilePath);
APIResult fooAPIResult;
using (HttpClientHandler handler = new HttpClientHandler())
{
ProgressMessageHandler progressMessageHandler = new ProgressMessageHandler();
progressMessageHandler.InnerHandler = handler;
progressMessageHandler.HttpReceiveProgress += new EventHandler <HttpProgressEventArgs>(onHttpResponseProgress);
progressMessageHandler.HttpSendProgress += new EventHandler <HttpProgressEventArgs>(onHttpRequestProgress);
//progressMessageHandler.HttpReceiveProgress += (s, e) =>
//{
// Console.WriteLine($"Receive : {e.ProgressPercentage}");
//};
//progressMessageHandler.HttpSendProgress += (s, e) =>
//{
// Console.WriteLine($"Send : {e.ProgressPercentage}");
//};
using (HttpClient client = new HttpClient(progressMessageHandler))
{
try
{
#region 呼叫遠端 Web API
string FooUrl = $"http://vulcanwebapi.azurewebsites.net/Datas/";
HttpResponseMessage response = null;
#region 設定相關網址內容
var fooFullUrl = $"{FooUrl}{filename}";
response = await client.GetAsync(fooFullUrl);
#endregion
#endregion
#region 處理呼叫完成 Web API 之後的回報結果
if (response != null)
{
if (response.IsSuccessStatusCode == true)
{
//byte[] foo = await response.Content.ReadAsByteArrayAsync();
using (var filestream = File.Open(ImgFilePath, FileMode.OpenOrCreate, FileAccess.ReadWrite))
{
using (var stream = await response.Content.ReadAsStreamAsync())
{
stream.CopyTo(filestream);
}
}
fooAPIResult = new APIResult
{
Success = true,
Message = string.Format("Error Code:{0}, Error Message:{1}", response.StatusCode, response.Content),
Payload = ImgFilePath,
};
}
else
{
fooAPIResult = new APIResult
{
Success = false,
Message = string.Format("Error Code:{0}, Error Message:{1}", response.StatusCode, response.RequestMessage),
Payload = null,
};
}
}
else
{
fooAPIResult = new APIResult
{
Success = false,
Message = "應用程式呼叫 API 發生異常",
Payload = null,
};
}
#endregion
}
catch (Exception ex)
{
fooAPIResult = new APIResult
{
Success = false,
Message = ex.Message,
Payload = ex,
};
}
}
}
return(fooAPIResult);
}