public override bool Process(HttpServer.IHttpRequest request, HttpServer.IHttpResponse response, HttpServer.Sessions.IHttpSession session)
{
var path = this.GetPath(request.Uri);
var html = System.IO.Path.Combine(path, "index.html");
var htm = System.IO.Path.Combine(path, "index.htm");
if (System.IO.Directory.Exists(path) && (System.IO.File.Exists(html) || System.IO.File.Exists(htm)))
{
if (!request.Uri.AbsolutePath.EndsWith("/", StringComparison.Ordinal))
{
response.Redirect(request.Uri.AbsolutePath + "/");
return(true);
}
response.Status = System.Net.HttpStatusCode.OK;
response.Reason = "OK";
response.ContentType = "text/html; charset=utf-8";
response.AddHeader("Cache-Control", "no-cache, no-store, must-revalidate, max-age=0");
using (var fs = System.IO.File.OpenRead(System.IO.File.Exists(html) ? html : htm))
{
response.ContentLength = fs.Length;
response.Body = fs;
response.Send();
}
return(true);
}
return(false);
}
public override bool Process(HttpServer.IHttpRequest request, HttpServer.IHttpResponse response, HttpServer.Sessions.IHttpSession session)
{
HttpServer.HttpInput input = request.Method.ToUpper() == "POST" ? request.Form : request.QueryString;
var auth_token = FindAuthCookie(request);
var xsrf_token = FindXSRFToken(request);
if (!HasXSRFCookie(request))
{
var cookieAdded = AddXSRFTokenToRespone(response);
if (!cookieAdded)
{
response.Status = System.Net.HttpStatusCode.ServiceUnavailable;
response.Reason = "Too Many Concurrent Request, try again later";
return(true);
}
}
Tuple <DateTime, string> tmpTuple;
DateTime tmpDateTime;
if (LOGOUT_SCRIPT_URI.Equals(request.Uri.AbsolutePath, StringComparison.OrdinalIgnoreCase))
{
if (!string.IsNullOrWhiteSpace(auth_token))
{
// Remove the active auth token
m_activeTokens.TryRemove(auth_token, out tmpDateTime);
}
response.Status = System.Net.HttpStatusCode.NoContent;
response.Reason = "OK";
return(true);
}
else if (LOGIN_SCRIPT_URI.Equals(request.Uri.AbsolutePath, StringComparison.OrdinalIgnoreCase))
{
// Remove expired nonces
foreach (var k in (from n in m_activeNonces where DateTime.UtcNow > n.Value.Item1 select n.Key))
{
m_activeNonces.TryRemove(k, out tmpTuple);
}
if (input["get-nonce"] != null && !string.IsNullOrWhiteSpace(input["get-nonce"].Value))
{
if (m_activeNonces.Count > 50)
{
response.Status = System.Net.HttpStatusCode.ServiceUnavailable;
response.Reason = "Too many active login attempts";
return(true);
}
var password = Program.DataConnection.ApplicationSettings.WebserverPassword;
if (request.Headers[TRAYICONPASSWORDSOURCE_HEADER] == "database")
{
password = Program.DataConnection.ApplicationSettings.WebserverPasswordTrayIconHash;
}
var buf = new byte[32];
var expires = DateTime.UtcNow.AddMinutes(AUTH_TIMEOUT_MINUTES);
m_prng.GetBytes(buf);
var nonce = Convert.ToBase64String(buf);
var sha256 = System.Security.Cryptography.SHA256.Create();
sha256.TransformBlock(buf, 0, buf.Length, buf, 0);
buf = Convert.FromBase64String(password);
sha256.TransformFinalBlock(buf, 0, buf.Length);
var pwd = Convert.ToBase64String(sha256.Hash);
m_activeNonces.AddOrUpdate(nonce, key => new Tuple <DateTime, string>(expires, pwd), (key, existingValue) =>
{
// Simulate the original behavior => if the nonce, against all odds, is already used
// we throw an ArgumentException
throw new ArgumentException("An element with the same key already exists in the dictionary.");
});
response.Cookies.Add(new HttpServer.ResponseCookie(NONCE_COOKIE_NAME, nonce, expires));
using (var bw = new BodyWriter(response, request))
{
bw.OutputOK(new {
Status = "OK",
Nonce = nonce,
Salt = Program.DataConnection.ApplicationSettings.WebserverPasswordSalt
});
}
return(true);
}
else
{
if (input["password"] != null && !string.IsNullOrWhiteSpace(input["password"].Value))
{
var nonce_el = request.Cookies[NONCE_COOKIE_NAME] ?? request.Cookies[Library.Utility.Uri.UrlEncode(NONCE_COOKIE_NAME)];
var nonce = nonce_el == null || string.IsNullOrWhiteSpace(nonce_el.Value) ? "" : nonce_el.Value;
var urldecoded = nonce == null ? "" : Duplicati.Library.Utility.Uri.UrlDecode(nonce);
if (m_activeNonces.ContainsKey(urldecoded))
{
nonce = urldecoded;
}
if (!m_activeNonces.ContainsKey(nonce))
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Unauthorized";
response.ContentType = "application/json";
return(true);
}
var pwd = m_activeNonces[nonce].Item2;
// Remove the nonce
m_activeNonces.TryRemove(nonce, out tmpTuple);
if (pwd != input["password"].Value)
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Unauthorized";
response.ContentType = "application/json";
return(true);
}
var buf = new byte[32];
var expires = DateTime.UtcNow.AddHours(1);
m_prng.GetBytes(buf);
var token = Duplicati.Library.Utility.Utility.Base64UrlEncode(buf);
while (token.Length > 0 && token.EndsWith("=", StringComparison.Ordinal))
{
token = token.Substring(0, token.Length - 1);
}
m_activeTokens.AddOrUpdate(token, key => expires, (key, existingValue) =>
{
// Simulate the original behavior => if the token, against all odds, is already used
// we throw an ArgumentException
throw new ArgumentException("An element with the same key already exists in the dictionary.");
});
response.Cookies.Add(new HttpServer.ResponseCookie(AUTH_COOKIE_NAME, token, expires));
using (var bw = new BodyWriter(response, request))
bw.OutputOK();
return(true);
}
}
}
var limitedAccess =
request.Uri.AbsolutePath.StartsWith(RESTHandler.API_URI_PATH, StringComparison.OrdinalIgnoreCase)
;
// Override to allow the CAPTCHA call to go through
if (request.Uri.AbsolutePath.StartsWith(CAPTCHA_IMAGE_URI, StringComparison.OrdinalIgnoreCase) && request.Method == "GET")
{
limitedAccess = false;
}
if (limitedAccess)
{
if (xsrf_token != null && m_activexsrf.ContainsKey(xsrf_token))
{
var expires = DateTime.UtcNow.AddMinutes(XSRF_TIMEOUT_MINUTES);
m_activexsrf[xsrf_token] = expires;
response.Cookies.Add(new ResponseCookie(XSRF_COOKIE_NAME, xsrf_token, expires));
}
else
{
response.Status = System.Net.HttpStatusCode.BadRequest;
response.Reason = "Missing XSRF Token. Please reload the page";
return(true);
}
}
if (string.IsNullOrWhiteSpace(Program.DataConnection.ApplicationSettings.WebserverPassword))
{
return(false);
}
foreach (var k in (from n in m_activeTokens where DateTime.UtcNow > n.Value select n.Key))
{
m_activeTokens.TryRemove(k, out tmpDateTime);
}
// If we have a valid token, proceed
if (!string.IsNullOrWhiteSpace(auth_token))
{
DateTime expires;
var found = m_activeTokens.TryGetValue(auth_token, out expires);
if (!found)
{
auth_token = Duplicati.Library.Utility.Uri.UrlDecode(auth_token);
found = m_activeTokens.TryGetValue(auth_token, out expires);
}
if (found && DateTime.UtcNow < expires)
{
expires = DateTime.UtcNow.AddHours(1);
m_activeTokens[auth_token] = expires;
response.Cookies.Add(new ResponseCookie(AUTH_COOKIE_NAME, auth_token, expires));
return(false);
}
}
if ("/".Equals(request.Uri.AbsolutePath, StringComparison.OrdinalIgnoreCase) || "/index.html".Equals(request.Uri.AbsolutePath, StringComparison.OrdinalIgnoreCase))
{
response.Redirect("/login.html");
return(true);
}
if (limitedAccess)
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Not logged in";
response.AddHeader("Location", "login.html");
return(true);
}
return(false);
}
public override bool Process(HttpServer.IHttpRequest request, HttpServer.IHttpResponse response, HttpServer.Sessions.IHttpSession session)
{
HttpServer.HttpInput input = request.Method.ToUpper() == "POST" ? request.Form : request.QueryString;
var authcookie = request.Cookies[AUTH_COOKIE_NAME] ?? request.Cookies[Library.Utility.Uri.UrlEncode(AUTH_COOKIE_NAME)];
var authinput = input["auth-token"] ?? input[Library.Utility.Uri.UrlEncode("auth-token")];
var auth_token = authcookie == null || string.IsNullOrWhiteSpace(authcookie.Value) ? null : authcookie.Value;
if (authinput != null && !string.IsNullOrWhiteSpace(authinput.Value))
{
auth_token = input["auth-token"].Value;
}
if (request.Uri.AbsolutePath == "/logout.cgi")
{
if (!string.IsNullOrWhiteSpace(auth_token))
{
if (m_activeTokens.ContainsKey(auth_token))
{
m_activeTokens.Remove(auth_token);
}
}
response.Status = System.Net.HttpStatusCode.NoContent;
response.Reason = "OK";
return(true);
}
else if (request.Uri.AbsolutePath == "/login.cgi")
{
foreach (var k in (from n in m_activeNonces where DateTime.UtcNow > n.Value.Item1 select n.Key).ToList())
{
m_activeNonces.Remove(k);
}
if (input["get-nonce"] != null && !string.IsNullOrWhiteSpace(input["get-nonce"].Value))
{
if (m_activeNonces.Count > 50)
{
response.Status = System.Net.HttpStatusCode.ServiceUnavailable;
response.Reason = "Too many active login attempts";
return(true);
}
var buf = new byte[32];
var expires = DateTime.UtcNow.AddMinutes(10);
m_prng.GetBytes(buf);
var nonce = Convert.ToBase64String(buf);
var sha256 = System.Security.Cryptography.SHA256.Create();
sha256.TransformBlock(buf, 0, buf.Length, buf, 0);
buf = Convert.FromBase64String(Program.DataConnection.ApplicationSettings.WebserverPassword);
sha256.TransformFinalBlock(buf, 0, buf.Length);
var pwd = Convert.ToBase64String(sha256.Hash);
m_activeNonces.Add(nonce, new Tuple <DateTime, string>(expires, pwd));
response.Cookies.Add(new HttpServer.ResponseCookie(NONCE_COOKIE_NAME, nonce, expires));
using (var bw = new BodyWriter(response))
{
bw.OutputOK(new {
Status = "OK",
Nonce = nonce,
Salt = Program.DataConnection.ApplicationSettings.WebserverPasswordSalt
});
}
return(true);
}
else
{
if (input["password"] != null && !string.IsNullOrWhiteSpace(input["password"].Value))
{
var nonce_el = request.Cookies[NONCE_COOKIE_NAME] ?? request.Cookies[Library.Utility.Uri.UrlEncode(NONCE_COOKIE_NAME)];
var nonce = nonce_el == null || string.IsNullOrWhiteSpace(nonce_el.Value) ? "" : nonce_el.Value;
var urldecoded = nonce == null ? "" : Duplicati.Library.Utility.Uri.UrlDecode(nonce);
if (m_activeNonces.ContainsKey(urldecoded))
{
nonce = urldecoded;
}
if (!m_activeNonces.ContainsKey(nonce))
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Unauthorized";
response.ContentType = "application/json";
return(true);
}
var pwd = m_activeNonces[nonce].Item2;
m_activeNonces.Remove(nonce);
if (pwd != input["password"].Value)
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Unauthorized";
response.ContentType = "application/json";
return(true);
}
var buf = new byte[32];
var expires = DateTime.UtcNow.AddHours(1);
m_prng.GetBytes(buf);
var token = Duplicati.Library.Utility.Utility.Base64UrlEncode(buf);
while (token.Length > 0 && token.EndsWith("="))
{
token = token.Substring(0, token.Length - 1);
}
m_activeTokens.Add(token, expires);
response.Cookies.Add(new HttpServer.ResponseCookie(AUTH_COOKIE_NAME, token, expires));
using (var bw = new BodyWriter(response))
bw.OutputOK();
return(true);
}
}
}
if (string.IsNullOrWhiteSpace(Program.DataConnection.ApplicationSettings.WebserverPassword))
{
return(false);
}
foreach (var k in (from n in m_activeTokens where DateTime.UtcNow > n.Value select n.Key).ToList())
{
m_activeTokens.Remove(k);
}
// If we have a valid token, proceeed
if (!string.IsNullOrWhiteSpace(auth_token))
{
DateTime expires;
var found = m_activeTokens.TryGetValue(auth_token, out expires);
if (!found)
{
auth_token = Duplicati.Library.Utility.Uri.UrlDecode(auth_token);
found = m_activeTokens.TryGetValue(auth_token, out expires);
}
if (found && DateTime.UtcNow < expires)
{
expires = DateTime.UtcNow.AddHours(1);
m_activeTokens[auth_token] = expires;
response.Cookies.Add(new ResponseCookie(AUTH_COOKIE_NAME, auth_token, expires));
return(false);
}
}
if (request.Uri.AbsolutePath == "/" || request.Uri.AbsolutePath == "/index.html")
{
response.Redirect("/login.html");
return(true);
}
if (request.Uri.AbsolutePath == "/control.cgi")
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Not logged in";
response.AddHeader("Location", "login.html");
return(true);
}
return(false);
}
public override bool Process(HttpServer.IHttpRequest request, HttpServer.IHttpResponse response, HttpServer.Sessions.IHttpSession session)
{
HttpServer.HttpInput input = request.Method.ToUpper() == "POST" ? request.Form : request.QueryString;
var auth_token = FindAuthCookie(request);
var xsrf_token = FindXSRFToken(request);
if (!HasXSRFCookie(request))
{
var cookieAdded = AddXSRFTokenToRespone(response);
if (!cookieAdded)
{
response.Status = System.Net.HttpStatusCode.ServiceUnavailable;
response.Reason = "Too Many Concurrent Request, try again later";
return(true);
}
}
if (LOGOUT_SCRIPT_URI.Equals(request.Uri.AbsolutePath, StringComparison.InvariantCultureIgnoreCase))
{
if (!string.IsNullOrWhiteSpace(auth_token))
{
if (m_activeTokens.ContainsKey(auth_token))
{
m_activeTokens.Remove(auth_token);
}
}
response.Status = System.Net.HttpStatusCode.NoContent;
response.Reason = "OK";
return(true);
}
else if (LOGIN_SCRIPT_URI.Equals(request.Uri.AbsolutePath, StringComparison.InvariantCultureIgnoreCase))
{
foreach (var k in (from n in m_activeNonces where DateTime.UtcNow > n.Value.Item1 select n.Key).ToList())
{
m_activeNonces.Remove(k);
}
if (input["get-nonce"] != null && !string.IsNullOrWhiteSpace(input["get-nonce"].Value))
{
if (m_activeNonces.Count > 50)
{
response.Status = System.Net.HttpStatusCode.ServiceUnavailable;
response.Reason = "Too many active login attempts";
return(true);
}
var buf = new byte[32];
var expires = DateTime.UtcNow.AddMinutes(AUTH_TIMEOUT_MINUTES);
m_prng.GetBytes(buf);
var nonce = Convert.ToBase64String(buf);
var sha256 = System.Security.Cryptography.SHA256.Create();
sha256.TransformBlock(buf, 0, buf.Length, buf, 0);
buf = Convert.FromBase64String(Program.DataConnection.ApplicationSettings.WebserverPassword);
sha256.TransformFinalBlock(buf, 0, buf.Length);
var pwd = Convert.ToBase64String(sha256.Hash);
m_activeNonces.Add(nonce, new Tuple <DateTime, string>(expires, pwd));
response.Cookies.Add(new HttpServer.ResponseCookie(NONCE_COOKIE_NAME, nonce, expires));
using (var bw = new BodyWriter(response, request))
{
bw.OutputOK(new {
Status = "OK",
Nonce = nonce,
Salt = Program.DataConnection.ApplicationSettings.WebserverPasswordSalt
});
}
return(true);
}
else
{
if (input["password"] != null && !string.IsNullOrWhiteSpace(input["password"].Value))
{
var nonce_el = request.Cookies[NONCE_COOKIE_NAME] ?? request.Cookies[Library.Utility.Uri.UrlEncode(NONCE_COOKIE_NAME)];
var nonce = nonce_el == null || string.IsNullOrWhiteSpace(nonce_el.Value) ? "" : nonce_el.Value;
var urldecoded = nonce == null ? "" : Duplicati.Library.Utility.Uri.UrlDecode(nonce);
if (m_activeNonces.ContainsKey(urldecoded))
{
nonce = urldecoded;
}
if (!m_activeNonces.ContainsKey(nonce))
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Unauthorized";
response.ContentType = "application/json";
return(true);
}
var pwd = m_activeNonces[nonce].Item2;
m_activeNonces.Remove(nonce);
if (pwd != input["password"].Value)
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Unauthorized";
response.ContentType = "application/json";
return(true);
}
var buf = new byte[32];
var expires = DateTime.UtcNow.AddHours(1);
m_prng.GetBytes(buf);
var token = Duplicati.Library.Utility.Utility.Base64UrlEncode(buf);
while (token.Length > 0 && token.EndsWith("="))
{
token = token.Substring(0, token.Length - 1);
}
m_activeTokens.Add(token, expires);
response.Cookies.Add(new HttpServer.ResponseCookie(AUTH_COOKIE_NAME, token, expires));
using (var bw = new BodyWriter(response, request))
bw.OutputOK();
return(true);
}
}
}
var limitedAccess =
ControlHandler.CONTROL_HANDLER_URI.Equals(request.Uri.AbsolutePath, StringComparison.InvariantCultureIgnoreCase)
||
request.Uri.AbsolutePath.StartsWith(RESTHandler.API_URI_PATH, StringComparison.InvariantCultureIgnoreCase)
;
if (limitedAccess)
{
if (xsrf_token != null && m_activexsrf.ContainsKey(xsrf_token))
{
var expires = DateTime.UtcNow.AddMinutes(XSRF_TIMEOUT_MINUTES);
m_activexsrf[xsrf_token] = expires;
response.Cookies.Add(new ResponseCookie(XSRF_COOKIE_NAME, xsrf_token, expires));
}
else
{
response.Status = System.Net.HttpStatusCode.BadRequest;
response.Reason = "Missing XSRF Token";
return(true);
}
}
if (string.IsNullOrWhiteSpace(Program.DataConnection.ApplicationSettings.WebserverPassword))
{
return(false);
}
foreach (var k in (from n in m_activeTokens where DateTime.UtcNow > n.Value select n.Key).ToList())
{
m_activeTokens.Remove(k);
}
// If we have a valid token, proceeed
if (!string.IsNullOrWhiteSpace(auth_token))
{
DateTime expires;
var found = m_activeTokens.TryGetValue(auth_token, out expires);
if (!found)
{
auth_token = Duplicati.Library.Utility.Uri.UrlDecode(auth_token);
found = m_activeTokens.TryGetValue(auth_token, out expires);
}
if (found && DateTime.UtcNow < expires)
{
expires = DateTime.UtcNow.AddHours(1);
m_activeTokens[auth_token] = expires;
response.Cookies.Add(new ResponseCookie(AUTH_COOKIE_NAME, auth_token, expires));
return(false);
}
}
if ("/".Equals(request.Uri.AbsolutePath, StringComparison.InvariantCultureIgnoreCase) || "/index.html".Equals(request.Uri.AbsolutePath, StringComparison.InvariantCultureIgnoreCase))
{
response.Redirect("/login.html");
return(true);
}
if (ControlHandler.CONTROL_HANDLER_URI.Equals(request.Uri.AbsolutePath, StringComparison.InvariantCultureIgnoreCase))
{
response.Status = System.Net.HttpStatusCode.Unauthorized;
response.Reason = "Not logged in";
response.AddHeader("Location", "login.html");
return(true);
}
return(false);
}