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BUG-1769: Added OAuth 2 for Picasa

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Robin 2015-04-14 17:11:33 +02:00
parent 29c7f466ec
commit ea4631af3d
7 changed files with 660 additions and 139 deletions
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90
GreenshotPlugin/Core/EncryptionHelper.cs
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@ -1,90 +0,0 @@
/*
* Greenshot - a free and open source screenshot tool
* Copyright (C) 2007-2015 Thomas Braun, Jens Klingen, Robin Krom
*
* For more information see: http://getgreenshot.org/
* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
using log4net;
namespace GreenshotPlugin.Core {
public static class EncryptionHelper {
private static readonly ILog LOG = LogManager.GetLogger(typeof(EncryptionHelper));
private const string RGBIV = "dlgjowejgogkklwj";
private const string KEY = "lsjvkwhvwujkagfauguwcsjgu2wueuff";
/// <summary>
/// A simply rijndael aes encryption, can be used to store passwords
/// </summary>
/// <param name="ClearText">the string to call upon</param>
/// <returns>an encryped string in base64 form</returns>
public static string Encrypt(this string ClearText) {
string returnValue = ClearText;
try {
byte[] clearTextBytes = Encoding.ASCII.GetBytes(ClearText);
SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
using (MemoryStream ms = new MemoryStream()) {
byte[] rgbIV = Encoding.ASCII.GetBytes(RGBIV);
byte[] key = Encoding.ASCII.GetBytes(KEY);
using (CryptoStream cs = new CryptoStream(ms, rijn.CreateEncryptor(key, rgbIV), CryptoStreamMode.Write)) {
cs.Write(clearTextBytes, 0, clearTextBytes.Length);
cs.FlushFinalBlock();
returnValue = Convert.ToBase64String(ms.ToArray());
}
}
} catch (Exception ex) {
LOG.ErrorFormat("Error encrypting, error: ", ex.Message);
}
return returnValue;
}
/// <summary>
/// A simply rijndael aes decryption, can be used to store passwords
/// </summary>
/// <param name="EncryptedText">a base64 encoded rijndael encrypted string</param>
/// <returns>Decrypeted text</returns>
public static string Decrypt(this string EncryptedText) {
string returnValue = EncryptedText;
try {
byte[] encryptedTextBytes = Convert.FromBase64String(EncryptedText);
using (MemoryStream ms = new MemoryStream()) {
SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
byte[] rgbIV = Encoding.ASCII.GetBytes(RGBIV);
byte[] key = Encoding.ASCII.GetBytes(KEY);
using (CryptoStream cs = new CryptoStream(ms, rijn.CreateDecryptor(key, rgbIV), CryptoStreamMode.Write)) {
cs.Write(encryptedTextBytes, 0, encryptedTextBytes.Length);
cs.FlushFinalBlock();
returnValue = Encoding.ASCII.GetString(ms.ToArray());
}
}
} catch (Exception ex) {
LOG.ErrorFormat("Error decrypting {0}, error: ", EncryptedText, ex.Message);
}
return returnValue;
}
}
}