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Add support of authentication in the download operation (#194)

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Issue #126 - Add support of authentication in the download settings
This commit is contained in:
Torsten
2017-04-11 22:37:44 +02:00
committed by Oleg Nenashev
parent 1b93f81752
commit 5803d3ce15
3 changed files with 109 additions and 2 deletions
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76
src/Core/WinSWCore/Download.cs Executable file → Normal file
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@@ -1,6 +1,7 @@
using System;
using System;
using System.IO;
using System.Net;
using System.Text;
using System.Xml;
namespace winsw
@@ -11,18 +12,91 @@ namespace winsw
/// </summary>
public class Download
{
public enum AuthType { none = 0, sspi, basic }
public readonly string From;
public readonly string To;
public readonly AuthType Auth = AuthType.none;
public readonly string Username;
public readonly string Password;
public readonly bool UnsecureAuth = false;
internal Download(XmlNode n)
{
From = Environment.ExpandEnvironmentVariables(n.Attributes["from"].Value);
To = Environment.ExpandEnvironmentVariables(n.Attributes["to"].Value);
string tmpStr = "";
try
{
tmpStr = Environment.ExpandEnvironmentVariables(n.Attributes["auth"].Value);
}
catch (Exception)
{
}
Auth = tmpStr != "" ? (AuthType)Enum.Parse(typeof(AuthType), tmpStr) : AuthType.none;
try
{
tmpStr = Environment.ExpandEnvironmentVariables(n.Attributes["username"].Value);
}
catch (Exception)
{
}
Username = tmpStr;
try
{
tmpStr = Environment.ExpandEnvironmentVariables(n.Attributes["password"].Value);
}
catch (Exception)
{
}
Password = tmpStr;
try
{
tmpStr = Environment.ExpandEnvironmentVariables(n.Attributes["unsecureAuth"].Value);
}
catch (Exception)
{
}
UnsecureAuth = tmpStr == "enabled" ? true : false;
if (Auth == AuthType.basic)
{
if (From.StartsWith("http:") && UnsecureAuth == false)
{
throw new Exception("Warning: you're sending your credentials in clear text to the server. If you really want this you must enable this in the configuration!");
}
}
}
// Source: http://stackoverflow.com/questions/2764577/forcing-basic-authentication-in-webrequest
public void SetBasicAuthHeader(WebRequest request, String username, String password)
{
string authInfo = username + ":" + password;
authInfo = Convert.ToBase64String(Encoding.GetEncoding("ISO-8859-1").GetBytes(authInfo));
request.Headers["Authorization"] = "Basic " + authInfo;
}
public void Perform()
{
WebRequest req = WebRequest.Create(From);
switch (Auth)
{
case AuthType.sspi:
req.UseDefaultCredentials = true;
req.PreAuthenticate = true;
req.Credentials = CredentialCache.DefaultCredentials;
break;
case AuthType.basic:
SetBasicAuthHeader(req, Username, Password);
break;
}
WebResponse rsp = req.GetResponse();
FileStream tmpstream = new FileStream(To + ".tmp", FileMode.Create);
CopyStream(rsp.GetResponseStream(), tmpstream);