mirror of
https://github.com/ShareX/ShareX.git
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681 lines
No EOL
24 KiB
C#
681 lines
No EOL
24 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2018 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using ShareX.HelpersLib;
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using System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.IO;
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using System.Net;
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using System.Net.Cache;
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using System.Text;
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namespace ShareX.UploadersLib
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{
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public class Uploader
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{
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protected const string ContentTypeMultipartFormData = "multipart/form-data";
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protected const string ContentTypeJSON = "application/json";
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protected const string ContentTypeURLEncoded = "application/x-www-form-urlencoded";
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protected const string ContentTypeOctetStream = "application/octet-stream";
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public delegate void ProgressEventHandler(ProgressManager progress);
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public event ProgressEventHandler ProgressChanged;
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public event Action<string> EarlyURLCopyRequested;
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public bool IsUploading { get; protected set; }
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public List<string> Errors { get; private set; } = new List<string>();
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public bool IsError => !StopUploadRequested && Errors != null && Errors.Count > 0;
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public int BufferSize { get; set; } = 8192;
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public bool VerboseLogs { get; set; }
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public string VerboseLogsPath { get; set; }
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protected bool StopUploadRequested { get; set; }
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protected bool AllowReportProgress { get; set; } = true;
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protected bool ReturnResponseOnError { get; set; }
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private HttpWebRequest currentRequest;
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private Logger verboseLogger;
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public static void UpdateServicePointManager()
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{
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ServicePointManager.DefaultConnectionLimit = 25;
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ServicePointManager.Expect100Continue = false;
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ServicePointManager.UseNagleAlgorithm = false;
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}
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protected void OnProgressChanged(ProgressManager progress)
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{
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if (ProgressChanged != null)
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{
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ProgressChanged(progress);
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}
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}
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protected void OnEarlyURLCopyRequested(string url)
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{
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if (EarlyURLCopyRequested != null && !string.IsNullOrEmpty(url))
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{
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EarlyURLCopyRequested(url);
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}
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}
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public string ToErrorString()
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{
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if (IsError)
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{
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return string.Join(Environment.NewLine, Errors);
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}
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return "";
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}
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public virtual void StopUpload()
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{
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if (IsUploading)
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{
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StopUploadRequested = true;
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if (currentRequest != null)
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{
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try
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{
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currentRequest.Abort();
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}
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catch (Exception e)
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{
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DebugHelper.WriteException(e);
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}
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}
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}
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}
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protected string SendRequest(HttpMethod method, string url, Dictionary<string, string> args = null, NameValueCollection headers = null,
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CookieCollection cookies = null, ResponseType responseType = ResponseType.Text)
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{
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return SendRequest(method, url, (Stream)null, null, args, headers, cookies, responseType);
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}
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protected string SendRequest(HttpMethod method, string url, Stream data, string contentType = null, Dictionary<string, string> args = null, NameValueCollection headers = null,
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CookieCollection cookies = null, ResponseType responseType = ResponseType.Text)
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{
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using (HttpWebResponse webResponse = GetResponse(method, url, data, contentType, args, headers, cookies))
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{
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string response = ResponseToString(webResponse, responseType);
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if (VerboseLogs && !string.IsNullOrEmpty(VerboseLogsPath))
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{
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WriteVerboseLog(url, args, headers, response);
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}
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return response;
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}
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}
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protected string SendRequest(HttpMethod method, string url, string content, string contentType = null, Dictionary<string, string> args = null, NameValueCollection headers = null,
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CookieCollection cookies = null, ResponseType responseType = ResponseType.Text)
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{
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byte[] data = Encoding.UTF8.GetBytes(content);
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using (MemoryStream ms = new MemoryStream())
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{
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ms.Write(data, 0, data.Length);
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return SendRequest(method, url, ms, contentType, args, headers, cookies, responseType);
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}
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}
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protected string SendRequestURLEncoded(HttpMethod method, string url, Dictionary<string, string> args, NameValueCollection headers = null, CookieCollection cookies = null,
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ResponseType responseType = ResponseType.Text)
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{
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string query = URLHelpers.CreateQuery(args);
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return SendRequest(method, url, query, ContentTypeURLEncoded, args, headers, cookies, responseType);
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}
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protected NameValueCollection SendRequestGetHeaders(HttpMethod method, string url, Stream data, string contentType, Dictionary<string, string> args,
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NameValueCollection headers = null, CookieCollection cookies = null)
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{
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using (HttpWebResponse response = GetResponse(method, url, data, contentType, null, headers, cookies))
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{
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if (response != null)
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{
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return response.Headers;
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}
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return null;
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}
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}
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protected bool SendRequestDownload(HttpMethod method, string url, Stream downloadStream, Dictionary<string, string> args = null,
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NameValueCollection headers = null, CookieCollection cookies = null, string contentType = null)
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{
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using (HttpWebResponse response = GetResponse(method, url, null, contentType, args, headers, cookies))
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{
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if (response != null)
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{
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using (Stream responseStream = response.GetResponseStream())
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{
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responseStream.CopyStreamTo(downloadStream, BufferSize);
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}
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return true;
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}
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}
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return false;
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}
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protected string SendRequestMultiPart(string url, Dictionary<string, string> args, NameValueCollection headers = null, CookieCollection cookies = null,
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ResponseType responseType = ResponseType.Text)
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{
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string boundary = CreateBoundary();
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string contentType = ContentTypeMultipartFormData + "; boundary=" + boundary;
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byte[] data = MakeInputContent(boundary, args);
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using (MemoryStream stream = new MemoryStream())
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{
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stream.Write(data, 0, data.Length);
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using (HttpWebResponse webResponse = GetResponse(HttpMethod.POST, url, stream, contentType, null, headers, cookies))
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{
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string response = ResponseToString(webResponse, responseType);
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if (VerboseLogs && !string.IsNullOrEmpty(VerboseLogsPath))
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{
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WriteVerboseLog(url, args, headers, response);
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}
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return response;
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}
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}
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}
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protected UploadResult SendRequestFile(string url, Stream data, string fileName, string fileFormName = "file", Dictionary<string, string> args = null,
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NameValueCollection headers = null, CookieCollection cookies = null, ResponseType responseType = ResponseType.Text, HttpMethod method = HttpMethod.POST,
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string contentType = ContentTypeMultipartFormData, string metadata = null)
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{
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UploadResult result = new UploadResult();
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IsUploading = true;
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StopUploadRequested = false;
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try
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{
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string boundary = CreateBoundary();
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contentType += "; boundary=" + boundary;
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byte[] bytesArguments = MakeInputContent(boundary, args, false);
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byte[] bytesDataOpen;
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byte[] bytesDataDatafile = { };
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if (metadata != null)
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{
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bytesDataOpen = MakeFileInputContentOpen(boundary, fileFormName, fileName, metadata);
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bytesDataDatafile = MakeFileInputContentOpen(boundary, fileFormName, fileName, null);
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}
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else
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{
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bytesDataOpen = MakeFileInputContentOpen(boundary, fileFormName, fileName);
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}
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byte[] bytesDataClose = MakeFileInputContentClose(boundary);
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long contentLength = bytesArguments.Length + bytesDataOpen.Length + bytesDataDatafile.Length + data.Length + bytesDataClose.Length;
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HttpWebRequest request = PrepareWebRequest(method, url, headers, cookies, contentType, contentLength);
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using (Stream requestStream = request.GetRequestStream())
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{
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requestStream.Write(bytesArguments, 0, bytesArguments.Length);
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requestStream.Write(bytesDataOpen, 0, bytesDataOpen.Length);
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requestStream.Write(bytesDataDatafile, 0, bytesDataDatafile.Length);
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if (!TransferData(data, requestStream)) return null;
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requestStream.Write(bytesDataClose, 0, bytesDataClose.Length);
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}
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using (WebResponse response = request.GetResponse())
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{
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result.Response = ResponseToString(response, responseType);
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}
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result.IsSuccess = true;
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}
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catch (Exception e)
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{
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if (!StopUploadRequested)
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{
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string response = AddWebError(e, url);
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if (ReturnResponseOnError && e is WebException)
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{
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result.Response = response;
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}
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}
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}
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finally
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{
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currentRequest = null;
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IsUploading = false;
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if (VerboseLogs && !string.IsNullOrEmpty(VerboseLogsPath))
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{
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WriteVerboseLog(url, args, headers, result.Response);
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}
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}
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return result;
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}
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private HttpWebResponse GetResponse(HttpMethod method, string url, Stream data = null, string contentType = null, Dictionary<string, string> args = null,
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NameValueCollection headers = null, CookieCollection cookies = null)
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{
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IsUploading = true;
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StopUploadRequested = false;
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try
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{
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url = URLHelpers.CreateQuery(url, args);
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long length = 0;
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if (data != null)
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{
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length = data.Length;
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}
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HttpWebRequest request = PrepareWebRequest(method, url, headers, cookies, contentType, length);
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if (length > 0)
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{
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using (Stream requestStream = request.GetRequestStream())
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{
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if (!TransferData(data, requestStream))
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{
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return null;
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}
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}
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}
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return (HttpWebResponse)request.GetResponse();
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}
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catch (Exception e)
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{
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if (!StopUploadRequested)
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{
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AddWebError(e, url);
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}
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}
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finally
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{
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currentRequest = null;
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IsUploading = false;
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}
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return null;
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}
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#region Helper methods
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private HttpWebRequest PrepareWebRequest(HttpMethod method, string url, NameValueCollection headers = null, CookieCollection cookies = null, string contentType = null, long contentLength = 0)
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{
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HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
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request.Method = method.ToString();
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if (headers != null)
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{
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if (headers["Accept"] != null)
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{
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request.Accept = headers["Accept"];
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headers.Remove("Accept");
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}
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if (headers["Content-Length"] != null)
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{
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if (long.TryParse(headers["Content-Length"], out contentLength))
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{
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request.ContentLength = contentLength;
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}
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headers.Remove("Content-Length");
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}
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request.Headers.Add(headers);
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}
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request.CookieContainer = new CookieContainer();
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if (cookies != null) request.CookieContainer.Add(cookies);
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IWebProxy proxy = HelpersOptions.CurrentProxy.GetWebProxy();
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if (proxy != null) request.Proxy = proxy;
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request.UserAgent = ShareXResources.UserAgent;
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request.ContentType = contentType;
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if (contentLength > 0)
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{
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request.AllowWriteStreamBuffering = HelpersOptions.CurrentProxy.IsValidProxy();
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if (method == HttpMethod.GET)
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{
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request.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
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}
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request.ContentLength = contentLength;
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request.Pipelined = false;
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request.Timeout = -1;
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}
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else
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{
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request.KeepAlive = false;
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}
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currentRequest = request;
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return request;
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}
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protected bool TransferData(Stream dataStream, Stream requestStream)
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{
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if (dataStream.CanSeek)
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{
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dataStream.Position = 0;
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}
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ProgressManager progress = new ProgressManager(dataStream.Length);
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int length = (int)Math.Min(BufferSize, dataStream.Length);
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byte[] buffer = new byte[length];
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int bytesRead;
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while (!StopUploadRequested && (bytesRead = dataStream.Read(buffer, 0, length)) > 0)
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{
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requestStream.Write(buffer, 0, bytesRead);
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if (AllowReportProgress && progress.UpdateProgress(bytesRead))
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{
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OnProgressChanged(progress);
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}
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}
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return !StopUploadRequested;
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}
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private string CreateBoundary()
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{
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return new string('-', 20) + DateTime.Now.Ticks.ToString("x");
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}
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private byte[] MakeInputContent(string boundary, string name, string value)
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{
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string format = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"\r\n\r\n{2}\r\n", boundary, name, value);
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return Encoding.UTF8.GetBytes(format);
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}
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private byte[] MakeInputContent(string boundary, Dictionary<string, string> contents, bool isFinal = true)
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{
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using (MemoryStream stream = new MemoryStream())
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{
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if (string.IsNullOrEmpty(boundary)) boundary = CreateBoundary();
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byte[] bytes;
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if (contents != null)
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{
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foreach (KeyValuePair<string, string> content in contents)
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{
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if (!string.IsNullOrEmpty(content.Key) && !string.IsNullOrEmpty(content.Value))
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{
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bytes = MakeInputContent(boundary, content.Key, content.Value);
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stream.Write(bytes, 0, bytes.Length);
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}
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}
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if (isFinal)
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{
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bytes = MakeFinalBoundary(boundary);
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stream.Write(bytes, 0, bytes.Length);
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}
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}
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return stream.ToArray();
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}
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}
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private byte[] MakeFileInputContentOpen(string boundary, string fileFormName, string fileName)
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{
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string format = string.Format("--{0}\r\nContent-Disposition: form-data; name=\"{1}\"; filename=\"{2}\"\r\nContent-Type: {3}\r\n\r\n",
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boundary, fileFormName, fileName, Helpers.GetMimeType(fileName));
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return Encoding.UTF8.GetBytes(format);
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}
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private byte[] MakeFileInputContentOpen(string boundary, string fileFormName, string fileName, string metadata)
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{
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string format = "";
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if (metadata != null)
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{
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format = string.Format("--{0}\r\nContent-Type: {1}; charset=UTF-8\r\n\r\n{2}\r\n\r\n", boundary, ContentTypeJSON, metadata);
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}
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else
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{
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format = string.Format("--{0}\r\nContent-Type: {1}\r\n\r\n", boundary, Helpers.GetMimeType(fileName));
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}
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return Encoding.UTF8.GetBytes(format);
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}
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private byte[] MakeFileInputContentClose(string boundary)
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{
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return Encoding.UTF8.GetBytes(string.Format("\r\n--{0}--\r\n", boundary));
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}
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private byte[] MakeFinalBoundary(string boundary)
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{
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return Encoding.UTF8.GetBytes(string.Format("--{0}--\r\n", boundary));
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}
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private string ResponseToString(WebResponse response, ResponseType responseType = ResponseType.Text)
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{
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if (response != null)
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{
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using (response)
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{
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switch (responseType)
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{
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case ResponseType.Text:
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using (Stream responseStream = response.GetResponseStream())
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using (StreamReader reader = new StreamReader(responseStream, Encoding.UTF8))
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{
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return reader.ReadToEnd();
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}
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case ResponseType.RedirectionURL:
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return response.ResponseUri.OriginalString;
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case ResponseType.Headers:
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StringBuilder sbHeaders = new StringBuilder();
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foreach (string key in response.Headers.AllKeys)
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{
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string value = response.Headers[key];
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sbHeaders.AppendFormat("{0}: \"{1}\"{2}", key, value, Environment.NewLine);
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}
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return sbHeaders.ToString().Trim();
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case ResponseType.LocationHeader:
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return response.Headers["Location"];
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}
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}
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}
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return null;
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}
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protected NameValueCollection CreateAuthenticationHeader(string username, string password)
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{
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string authInfo = username + ":" + password;
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authInfo = Convert.ToBase64String(Encoding.UTF8.GetBytes(authInfo));
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NameValueCollection headers = new NameValueCollection();
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headers["Authorization"] = "Basic " + authInfo;
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return headers;
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}
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private string AddWebError(Exception e, string url)
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{
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string response = null;
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if (Errors != null && e != null)
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{
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StringBuilder sb = new StringBuilder();
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sb.AppendLine("Message:");
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sb.AppendLine(e.Message);
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if (!string.IsNullOrEmpty(url))
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{
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sb.AppendLine();
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sb.AppendLine("Request URL:");
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sb.AppendLine(URLHelpers.RemoveQuery(url));
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}
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if (e is WebException)
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{
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try
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{
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response = ResponseToString(((WebException)e).Response);
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if (!string.IsNullOrEmpty(response))
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{
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sb.AppendLine();
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sb.AppendLine("Response:");
|
|
sb.AppendLine(response);
|
|
}
|
|
}
|
|
catch
|
|
{
|
|
}
|
|
}
|
|
|
|
sb.AppendLine();
|
|
sb.AppendLine("Stack trace:");
|
|
sb.AppendLine(e.StackTrace);
|
|
|
|
string errorText = sb.ToString().Trim();
|
|
Errors.Add(errorText);
|
|
DebugHelper.WriteLine("Error:\r\n" + errorText);
|
|
}
|
|
|
|
return response;
|
|
}
|
|
|
|
private void WriteVerboseLog(string url, Dictionary<string, string> args, NameValueCollection headers, string response)
|
|
{
|
|
if (verboseLogger == null)
|
|
{
|
|
verboseLogger = new Logger(VerboseLogsPath)
|
|
{
|
|
MessageFormat = "Date: {0:yyyy-MM-dd HH:mm:ss.fff}\r\n{1}",
|
|
StringWrite = false
|
|
};
|
|
}
|
|
|
|
StringBuilder sb = new StringBuilder();
|
|
|
|
sb.AppendLine("URL: " + (url ?? ""));
|
|
|
|
if (args != null && args.Count > 0)
|
|
{
|
|
sb.AppendLine("Arguments:");
|
|
|
|
foreach (KeyValuePair<string, string> arg in args)
|
|
{
|
|
sb.AppendLine($" Name: {arg.Key}, Value: {arg.Value}");
|
|
}
|
|
}
|
|
|
|
if (headers != null && headers.Count > 0)
|
|
{
|
|
sb.AppendLine("Headers:");
|
|
|
|
foreach (string key in headers)
|
|
{
|
|
string value = headers[key];
|
|
sb.AppendLine($" Name: {key}, Value: {value}");
|
|
}
|
|
}
|
|
|
|
sb.AppendLine("Response:");
|
|
|
|
if (!string.IsNullOrEmpty(response))
|
|
{
|
|
sb.AppendLine(response);
|
|
}
|
|
|
|
sb.Append(new string('-', 30));
|
|
|
|
verboseLogger.WriteLine(sb.ToString());
|
|
}
|
|
|
|
#endregion Helper methods
|
|
|
|
#region OAuth methods
|
|
|
|
protected string GetAuthorizationURL(string requestTokenURL, string authorizeURL, OAuthInfo authInfo,
|
|
Dictionary<string, string> customParameters = null, HttpMethod httpMethod = HttpMethod.GET)
|
|
{
|
|
string url = OAuthManager.GenerateQuery(requestTokenURL, customParameters, httpMethod, authInfo);
|
|
|
|
string response = SendRequest(httpMethod, url);
|
|
|
|
if (!string.IsNullOrEmpty(response))
|
|
{
|
|
return OAuthManager.GetAuthorizationURL(response, authInfo, authorizeURL);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
protected bool GetAccessToken(string accessTokenURL, OAuthInfo authInfo, HttpMethod httpMethod = HttpMethod.GET)
|
|
{
|
|
return GetAccessTokenEx(accessTokenURL, authInfo, httpMethod) != null;
|
|
}
|
|
|
|
protected NameValueCollection GetAccessTokenEx(string accessTokenURL, OAuthInfo authInfo, HttpMethod httpMethod = HttpMethod.GET)
|
|
{
|
|
if (string.IsNullOrEmpty(authInfo.AuthToken) || string.IsNullOrEmpty(authInfo.AuthSecret))
|
|
{
|
|
throw new Exception("Auth infos missing. Open Authorization URL first.");
|
|
}
|
|
|
|
string url = OAuthManager.GenerateQuery(accessTokenURL, null, httpMethod, authInfo);
|
|
|
|
string response = SendRequest(httpMethod, url);
|
|
|
|
if (!string.IsNullOrEmpty(response))
|
|
{
|
|
return OAuthManager.ParseAccessTokenResponse(response, authInfo);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
#endregion OAuth methods
|
|
}
|
|
} |