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-rw-r--r-- | OpenSim/Framework/Communications/Cache/CryptoGridAssetClient.cs | 559 |
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diff --git a/OpenSim/Framework/Communications/Cache/CryptoGridAssetClient.cs b/OpenSim/Framework/Communications/Cache/CryptoGridAssetClient.cs deleted file mode 100644 index 4e35f5b..0000000 --- a/OpenSim/Framework/Communications/Cache/CryptoGridAssetClient.cs +++ /dev/null | |||
@@ -1,559 +0,0 @@ | |||
1 | /* | ||
2 | * Copyright (c) Contributors, http://www.openmetaverse.org/ | ||
3 | * See CONTRIBUTORS.TXT for a full list of copyright holders. | ||
4 | * | ||
5 | * Redistribution and use in source and binary forms, with or without | ||
6 | * modification, are permitted provided that the following conditions are met: | ||
7 | * * Redistributions of source code must retain the above copyright | ||
8 | * notice, this list of conditions and the following disclaimer. | ||
9 | * * Redistributions in binary form must reproduce the above copyright | ||
10 | * notice, this list of conditions and the following disclaimer in the | ||
11 | * documentation and/or other materials provided with the distribution. | ||
12 | * * Neither the name of the OpenSimulator Project nor the | ||
13 | * names of its contributors may be used to endorse or promote products | ||
14 | * derived from this software without specific prior written permission. | ||
15 | * | ||
16 | * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY | ||
17 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
18 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
19 | * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY | ||
20 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
21 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
22 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND | ||
23 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
24 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
25 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
26 | */ | ||
27 | /* | ||
28 | * This file includes content derived from Obviex. | ||
29 | * Copyright (C) 2002 Obviex(TM). All rights reserved. | ||
30 | * http://www.obviex.com/samples/Encryption.aspx | ||
31 | */ | ||
32 | |||
33 | using System; | ||
34 | using System.Collections.Generic; | ||
35 | using System.IO; | ||
36 | using System.Reflection; | ||
37 | using System.Security.Cryptography; | ||
38 | using System.Text; | ||
39 | using System.Xml.Serialization; | ||
40 | using log4net; | ||
41 | using OpenSim.Framework.Servers.HttpServer; | ||
42 | |||
43 | namespace OpenSim.Framework.Communications.Cache | ||
44 | { | ||
45 | public class CryptoGridAssetClient : AssetServerBase | ||
46 | { | ||
47 | |||
48 | private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); | ||
49 | |||
50 | private string _assetServerUrl; | ||
51 | private bool m_encryptOnUpload; | ||
52 | private RjinKeyfile m_encryptKey; | ||
53 | private readonly Dictionary<string,RjinKeyfile> m_keyfiles = new Dictionary<string, RjinKeyfile>(); | ||
54 | |||
55 | #region IPlugin | ||
56 | |||
57 | public override string Name | ||
58 | { | ||
59 | get { return "Crypto"; } | ||
60 | } | ||
61 | |||
62 | public override string Version | ||
63 | { | ||
64 | get { return "1.0"; } | ||
65 | } | ||
66 | |||
67 | public override void Initialise(ConfigSettings p_set, string p_url, string p_dir, bool p_t) | ||
68 | { | ||
69 | m_log.Debug("[CRYPTOGRID] Plugin configured initialisation"); | ||
70 | Initialise(p_url, p_dir, p_t); | ||
71 | } | ||
72 | |||
73 | #endregion | ||
74 | |||
75 | #region Keyfile Classes | ||
76 | [Serializable] | ||
77 | public class RjinKeyfile | ||
78 | { | ||
79 | public string Secret; | ||
80 | public string AlsoKnownAs; | ||
81 | public int Keysize; | ||
82 | public string IVBytes; | ||
83 | public string Description = "OpenSim Key"; | ||
84 | |||
85 | private static string SHA1Hash(byte[] bytes) | ||
86 | { | ||
87 | SHA1 sha1 = SHA1CryptoServiceProvider.Create(); | ||
88 | byte[] dataMd5 = sha1.ComputeHash(bytes); | ||
89 | StringBuilder sb = new StringBuilder(); | ||
90 | for (int i = 0; i < dataMd5.Length; i++) | ||
91 | sb.AppendFormat("{0:x2}", dataMd5[i]); | ||
92 | return sb.ToString(); | ||
93 | } | ||
94 | |||
95 | public void GenerateRandom() | ||
96 | { | ||
97 | RNGCryptoServiceProvider Gen = new RNGCryptoServiceProvider(); | ||
98 | |||
99 | byte[] genSec = new byte[32]; | ||
100 | byte[] genAKA = new byte[32]; | ||
101 | byte[] genIV = new byte[32]; | ||
102 | |||
103 | Gen.GetBytes(genSec); | ||
104 | Gen.GetBytes(genAKA); | ||
105 | Gen.GetBytes(genIV); | ||
106 | |||
107 | Secret = SHA1Hash(genSec); | ||
108 | AlsoKnownAs = SHA1Hash(genAKA); | ||
109 | IVBytes = SHA1Hash(genIV).Substring(0, 16); | ||
110 | Keysize = 256; | ||
111 | } | ||
112 | } | ||
113 | #endregion | ||
114 | |||
115 | #region Rjindael | ||
116 | /// <summary> | ||
117 | /// This class uses a symmetric key algorithm (Rijndael/AES) to encrypt and | ||
118 | /// decrypt data. As long as encryption and decryption routines use the same | ||
119 | /// parameters to generate the keys, the keys are guaranteed to be the same. | ||
120 | /// The class uses static functions with duplicate code to make it easier to | ||
121 | /// demonstrate encryption and decryption logic. In a real-life application, | ||
122 | /// this may not be the most efficient way of handling encryption, so - as | ||
123 | /// soon as you feel comfortable with it - you may want to redesign this class. | ||
124 | /// </summary> | ||
125 | public class UtilRijndael | ||
126 | { | ||
127 | /// <summary> | ||
128 | /// Encrypts specified plaintext using Rijndael symmetric key algorithm | ||
129 | /// and returns a base64-encoded result. | ||
130 | /// </summary> | ||
131 | /// <param name="plainText"> | ||
132 | /// Plaintext value to be encrypted. | ||
133 | /// </param> | ||
134 | /// <param name="passPhrase"> | ||
135 | /// Passphrase from which a pseudo-random password will be derived. The | ||
136 | /// derived password will be used to generate the encryption key. | ||
137 | /// Passphrase can be any string. In this example we assume that this | ||
138 | /// passphrase is an ASCII string. | ||
139 | /// </param> | ||
140 | /// <param name="saltValue"> | ||
141 | /// Salt value used along with passphrase to generate password. Salt can | ||
142 | /// be any string. In this example we assume that salt is an ASCII string. | ||
143 | /// </param> | ||
144 | /// <param name="hashAlgorithm"> | ||
145 | /// Hash algorithm used to generate password. Allowed values are: "MD5" and | ||
146 | /// "SHA1". SHA1 hashes are a bit slower, but more secure than MD5 hashes. | ||
147 | /// </param> | ||
148 | /// <param name="passwordIterations"> | ||
149 | /// Number of iterations used to generate password. One or two iterations | ||
150 | /// should be enough. | ||
151 | /// </param> | ||
152 | /// <param name="initVector"> | ||
153 | /// Initialization vector (or IV). This value is required to encrypt the | ||
154 | /// first block of plaintext data. For RijndaelManaged class IV must be | ||
155 | /// exactly 16 ASCII characters long. | ||
156 | /// </param> | ||
157 | /// <param name="keySize"> | ||
158 | /// Size of encryption key in bits. Allowed values are: 128, 192, and 256. | ||
159 | /// Longer keys are more secure than shorter keys. | ||
160 | /// </param> | ||
161 | /// <returns> | ||
162 | /// Encrypted value formatted as a base64-encoded string. | ||
163 | /// </returns> | ||
164 | public static byte[] Encrypt(byte[] plainText, | ||
165 | string passPhrase, | ||
166 | string saltValue, | ||
167 | string hashAlgorithm, | ||
168 | int passwordIterations, | ||
169 | string initVector, | ||
170 | int keySize) | ||
171 | { | ||
172 | // Convert strings into byte arrays. | ||
173 | // Let us assume that strings only contain ASCII codes. | ||
174 | // If strings include Unicode characters, use Unicode, UTF7, or UTF8 | ||
175 | // encoding. | ||
176 | byte[] initVectorBytes = Encoding.ASCII.GetBytes(initVector); | ||
177 | byte[] saltValueBytes = Encoding.ASCII.GetBytes(saltValue); | ||
178 | |||
179 | // Convert our plaintext into a byte array. | ||
180 | // Let us assume that plaintext contains UTF8-encoded characters. | ||
181 | byte[] plainTextBytes = plainText; | ||
182 | |||
183 | // First, we must create a password, from which the key will be derived. | ||
184 | // This password will be generated from the specified passphrase and | ||
185 | // salt value. The password will be created using the specified hash | ||
186 | // algorithm. Password creation can be done in several iterations. | ||
187 | PasswordDeriveBytes password = new PasswordDeriveBytes( | ||
188 | passPhrase, | ||
189 | saltValueBytes, | ||
190 | hashAlgorithm, | ||
191 | passwordIterations); | ||
192 | |||
193 | // Use the password to generate pseudo-random bytes for the encryption | ||
194 | // key. Specify the size of the key in bytes (instead | ||
195 | // of bits). | ||
196 | #pragma warning disable 0618 | ||
197 | byte[] keyBytes = password.GetBytes(keySize / 8); | ||
198 | #pragma warning restore 0618 | ||
199 | |||
200 | // Create uninitialized Rijndael encryption object. | ||
201 | RijndaelManaged symmetricKey = new RijndaelManaged(); | ||
202 | |||
203 | // It is reasonable to set encryption mode to Cipher Block Chaining | ||
204 | // (CBC). Use default options for other symmetric key parameters. | ||
205 | symmetricKey.Mode = CipherMode.CBC; | ||
206 | |||
207 | // Generate encryptor from the existing key bytes and initialization | ||
208 | // vector. Key size will be defined based on the number of the key | ||
209 | // bytes. | ||
210 | ICryptoTransform encryptor = symmetricKey.CreateEncryptor( | ||
211 | keyBytes, | ||
212 | initVectorBytes); | ||
213 | |||
214 | // Define memory stream which will be used to hold encrypted data. | ||
215 | MemoryStream memoryStream = new MemoryStream(); | ||
216 | |||
217 | // Define cryptographic stream (always use Write mode for encryption). | ||
218 | CryptoStream cryptoStream = new CryptoStream(memoryStream, | ||
219 | encryptor, | ||
220 | CryptoStreamMode.Write); | ||
221 | // Start encrypting. | ||
222 | cryptoStream.Write(plainTextBytes, 0, plainTextBytes.Length); | ||
223 | |||
224 | // Finish encrypting. | ||
225 | cryptoStream.FlushFinalBlock(); | ||
226 | |||
227 | // Convert our encrypted data from a memory stream into a byte array. | ||
228 | byte[] cipherTextBytes = memoryStream.ToArray(); | ||
229 | |||
230 | // Close both streams. | ||
231 | memoryStream.Close(); | ||
232 | cryptoStream.Close(); | ||
233 | |||
234 | // Return encrypted string. | ||
235 | return cipherTextBytes; | ||
236 | } | ||
237 | |||
238 | /// <summary> | ||
239 | /// Decrypts specified ciphertext using Rijndael symmetric key algorithm. | ||
240 | /// </summary> | ||
241 | /// <param name="cipherText"> | ||
242 | /// Base64-formatted ciphertext value. | ||
243 | /// </param> | ||
244 | /// <param name="passPhrase"> | ||
245 | /// Passphrase from which a pseudo-random password will be derived. The | ||
246 | /// derived password will be used to generate the encryption key. | ||
247 | /// Passphrase can be any string. In this example we assume that this | ||
248 | /// passphrase is an ASCII string. | ||
249 | /// </param> | ||
250 | /// <param name="saltValue"> | ||
251 | /// Salt value used along with passphrase to generate password. Salt can | ||
252 | /// be any string. In this example we assume that salt is an ASCII string. | ||
253 | /// </param> | ||
254 | /// <param name="hashAlgorithm"> | ||
255 | /// Hash algorithm used to generate password. Allowed values are: "MD5" and | ||
256 | /// "SHA1". SHA1 hashes are a bit slower, but more secure than MD5 hashes. | ||
257 | /// </param> | ||
258 | /// <param name="passwordIterations"> | ||
259 | /// Number of iterations used to generate password. One or two iterations | ||
260 | /// should be enough. | ||
261 | /// </param> | ||
262 | /// <param name="initVector"> | ||
263 | /// Initialization vector (or IV). This value is required to encrypt the | ||
264 | /// first block of plaintext data. For RijndaelManaged class IV must be | ||
265 | /// exactly 16 ASCII characters long. | ||
266 | /// </param> | ||
267 | /// <param name="keySize"> | ||
268 | /// Size of encryption key in bits. Allowed values are: 128, 192, and 256. | ||
269 | /// Longer keys are more secure than shorter keys. | ||
270 | /// </param> | ||
271 | /// <returns> | ||
272 | /// Decrypted string value. | ||
273 | /// </returns> | ||
274 | /// <remarks> | ||
275 | /// Most of the logic in this function is similar to the Encrypt | ||
276 | /// logic. In order for decryption to work, all parameters of this function | ||
277 | /// - except cipherText value - must match the corresponding parameters of | ||
278 | /// the Encrypt function which was called to generate the | ||
279 | /// ciphertext. | ||
280 | /// </remarks> | ||
281 | public static byte[] Decrypt(byte[] cipherText, | ||
282 | string passPhrase, | ||
283 | string saltValue, | ||
284 | string hashAlgorithm, | ||
285 | int passwordIterations, | ||
286 | string initVector, | ||
287 | int keySize) | ||
288 | { | ||
289 | // Convert strings defining encryption key characteristics into byte | ||
290 | // arrays. Let us assume that strings only contain ASCII codes. | ||
291 | // If strings include Unicode characters, use Unicode, UTF7, or UTF8 | ||
292 | // encoding. | ||
293 | byte[] initVectorBytes = Encoding.ASCII.GetBytes(initVector); | ||
294 | byte[] saltValueBytes = Encoding.ASCII.GetBytes(saltValue); | ||
295 | |||
296 | // Convert our ciphertext into a byte array. | ||
297 | byte[] cipherTextBytes = cipherText; | ||
298 | |||
299 | // First, we must create a password, from which the key will be | ||
300 | // derived. This password will be generated from the specified | ||
301 | // passphrase and salt value. The password will be created using | ||
302 | // the specified hash algorithm. Password creation can be done in | ||
303 | // several iterations. | ||
304 | PasswordDeriveBytes password = new PasswordDeriveBytes(passPhrase, | ||
305 | saltValueBytes, | ||
306 | hashAlgorithm, | ||
307 | passwordIterations); | ||
308 | |||
309 | // Use the password to generate pseudo-random bytes for the encryption | ||
310 | // key. Specify the size of the key in bytes (instead | ||
311 | // of bits). | ||
312 | #pragma warning disable 0618 | ||
313 | byte[] keyBytes = password.GetBytes(keySize / 8); | ||
314 | #pragma warning restore 0618 | ||
315 | |||
316 | // Create uninitialized Rijndael encryption object. | ||
317 | RijndaelManaged symmetricKey = new RijndaelManaged(); | ||
318 | |||
319 | // It is reasonable to set encryption mode to Cipher Block Chaining | ||
320 | // (CBC). Use default options for other symmetric key parameters. | ||
321 | symmetricKey.Mode = CipherMode.CBC; | ||
322 | |||
323 | // Generate decryptor from the existing key bytes and initialization | ||
324 | // vector. Key size will be defined based on the number of the key | ||
325 | // bytes. | ||
326 | ICryptoTransform decryptor = symmetricKey.CreateDecryptor( | ||
327 | keyBytes, | ||
328 | initVectorBytes); | ||
329 | |||
330 | // Define memory stream which will be used to hold encrypted data. | ||
331 | MemoryStream memoryStream = new MemoryStream(cipherTextBytes); | ||
332 | |||
333 | // Define cryptographic stream (always use Read mode for encryption). | ||
334 | CryptoStream cryptoStream = new CryptoStream(memoryStream, | ||
335 | decryptor, | ||
336 | CryptoStreamMode.Read); | ||
337 | |||
338 | // Since at this point we don't know what the size of decrypted data | ||
339 | // will be, allocate the buffer long enough to hold ciphertext; | ||
340 | // plaintext is never longer than ciphertext. | ||
341 | byte[] plainTextBytes = new byte[cipherTextBytes.Length]; | ||
342 | |||
343 | // Start decrypting. | ||
344 | int decryptedByteCount = cryptoStream.Read(plainTextBytes, | ||
345 | 0, | ||
346 | plainTextBytes.Length); | ||
347 | |||
348 | // Close both streams. | ||
349 | memoryStream.Close(); | ||
350 | cryptoStream.Close(); | ||
351 | |||
352 | byte[] plainText = new byte[decryptedByteCount]; | ||
353 | int i; | ||
354 | for (i = 0; i < decryptedByteCount; i++) | ||
355 | plainText[i] = plainTextBytes[i]; | ||
356 | |||
357 | // Return decrypted string. | ||
358 | return plainText; | ||
359 | } | ||
360 | } | ||
361 | #endregion | ||
362 | |||
363 | public CryptoGridAssetClient() {} | ||
364 | |||
365 | public CryptoGridAssetClient(string serverUrl, string keydir, bool decOnly) | ||
366 | { | ||
367 | m_log.Debug("[CRYPTOGRID] Direct constructor"); | ||
368 | Initialise(serverUrl, keydir, decOnly); | ||
369 | } | ||
370 | |||
371 | public void Initialise(string serverUrl, string keydir, bool decOnly) | ||
372 | { | ||
373 | |||
374 | m_log.Debug("[CRYPTOGRID] Common constructor"); | ||
375 | |||
376 | _assetServerUrl = serverUrl; | ||
377 | |||
378 | string[] keys = Directory.GetFiles(keydir, "*.deckey"); | ||
379 | foreach (string key in keys) | ||
380 | { | ||
381 | XmlSerializer xs = new XmlSerializer(typeof (RjinKeyfile)); | ||
382 | FileStream file = new FileStream(key, FileMode.Open, FileAccess.Read); | ||
383 | |||
384 | RjinKeyfile rjkey = (RjinKeyfile) xs.Deserialize(file); | ||
385 | |||
386 | file.Close(); | ||
387 | |||
388 | m_keyfiles.Add(rjkey.AlsoKnownAs, rjkey); | ||
389 | } | ||
390 | |||
391 | |||
392 | keys = Directory.GetFiles(keydir, "*.enckey"); | ||
393 | if (keys.Length == 1) | ||
394 | { | ||
395 | string Ekey = keys[0]; | ||
396 | XmlSerializer Exs = new XmlSerializer(typeof (RjinKeyfile)); | ||
397 | FileStream Efile = new FileStream(Ekey, FileMode.Open, FileAccess.Read); | ||
398 | |||
399 | RjinKeyfile Erjkey = (RjinKeyfile) Exs.Deserialize(Efile); | ||
400 | |||
401 | Efile.Close(); | ||
402 | |||
403 | m_keyfiles.Add(Erjkey.AlsoKnownAs, Erjkey); | ||
404 | |||
405 | m_encryptKey = Erjkey; | ||
406 | } else | ||
407 | { | ||
408 | if (keys.Length > 1) | ||
409 | throw new Exception( | ||
410 | "You have more than one asset *encryption* key. (You should never have more than one)," + | ||
411 | "If you downloaded this key from someone, rename it to <filename>.deckey to convert it to" + | ||
412 | "a decryption-only key."); | ||
413 | |||
414 | m_log.Warn("No encryption key found, generating a new one for you..."); | ||
415 | RjinKeyfile encKey = new RjinKeyfile(); | ||
416 | encKey.GenerateRandom(); | ||
417 | |||
418 | m_encryptKey = encKey; | ||
419 | |||
420 | FileStream encExportFile = new FileStream("mysecretkey_rename_me.enckey",FileMode.CreateNew); | ||
421 | XmlSerializer xs = new XmlSerializer(typeof(RjinKeyfile)); | ||
422 | xs.Serialize(encExportFile, encKey); | ||
423 | encExportFile.Flush(); | ||
424 | encExportFile.Close(); | ||
425 | |||
426 | m_log.Info( | ||
427 | "Encryption file generated, please rename 'mysecretkey_rename_me.enckey' to something more appropriate (however preserve the file extension)."); | ||
428 | } | ||
429 | |||
430 | // If Decrypt-Only, dont encrypt on upload | ||
431 | m_encryptOnUpload = !decOnly; | ||
432 | } | ||
433 | |||
434 | private static void EncryptAssetBase(AssetBase x, RjinKeyfile file) | ||
435 | { | ||
436 | // Make a salt | ||
437 | RNGCryptoServiceProvider RandomGen = new RNGCryptoServiceProvider(); | ||
438 | byte[] rand = new byte[32]; | ||
439 | RandomGen.GetBytes(rand); | ||
440 | |||
441 | string salt = Convert.ToBase64String(rand); | ||
442 | |||
443 | x.Data = UtilRijndael.Encrypt(x.Data, file.Secret, salt, "SHA1", 2, file.IVBytes, file.Keysize); | ||
444 | x.Description = String.Format("ENCASS#:~:#{0}#:~:#{1}#:~:#{2}#:~:#{3}", | ||
445 | "OPENSIM_AES_AF1", | ||
446 | file.AlsoKnownAs, | ||
447 | salt, | ||
448 | x.Description); | ||
449 | } | ||
450 | |||
451 | private bool DecryptAssetBase(AssetBase x) | ||
452 | { | ||
453 | // Check it's encrypted first. | ||
454 | if (!x.Description.Contains("ENCASS")) | ||
455 | return true; | ||
456 | |||
457 | // ENCASS:ALG:AKA:SALT:Description | ||
458 | // 0 1 2 3 4 | ||
459 | string[] splitchars = new string[1]; | ||
460 | splitchars[0] = "#:~:#"; | ||
461 | |||
462 | string[] meta = x.Description.Split(splitchars, StringSplitOptions.None); | ||
463 | if (meta.Length < 5) | ||
464 | { | ||
465 | m_log.Warn("[ENCASSETS] Recieved Encrypted Asset, but header is corrupt"); | ||
466 | return false; | ||
467 | } | ||
468 | |||
469 | // Check if we have a matching key | ||
470 | if (m_keyfiles.ContainsKey(meta[2])) | ||
471 | { | ||
472 | RjinKeyfile deckey = m_keyfiles[meta[2]]; | ||
473 | x.Description = meta[4]; | ||
474 | switch (meta[1]) | ||
475 | { | ||
476 | case "OPENSIM_AES_AF1": | ||
477 | x.Data = UtilRijndael.Decrypt(x.Data, | ||
478 | deckey.Secret, | ||
479 | meta[3], | ||
480 | "SHA1", | ||
481 | 2, | ||
482 | deckey.IVBytes, | ||
483 | deckey.Keysize); | ||
484 | // Decrypted Successfully | ||
485 | return true; | ||
486 | default: | ||
487 | m_log.Warn( | ||
488 | "[ENCASSETS] Recieved Encrypted Asset, but we dont know how to decrypt '" + meta[1] + "'."); | ||
489 | // We dont understand this encryption scheme | ||
490 | return false; | ||
491 | } | ||
492 | } | ||
493 | |||
494 | m_log.Warn("[ENCASSETS] Recieved Encrypted Asset, but we do not have the decryption key."); | ||
495 | return false; | ||
496 | } | ||
497 | |||
498 | #region IAssetServer Members | ||
499 | |||
500 | protected override AssetBase GetAsset(AssetRequest req) | ||
501 | { | ||
502 | #if DEBUG | ||
503 | //m_log.DebugFormat("[GRID ASSET CLIENT]: Querying for {0}", req.AssetID.ToString()); | ||
504 | #endif | ||
505 | |||
506 | RestClient rc = new RestClient(_assetServerUrl); | ||
507 | rc.AddResourcePath("assets"); | ||
508 | rc.AddResourcePath(req.AssetID.ToString()); | ||
509 | if (req.IsTexture) | ||
510 | rc.AddQueryParameter("texture"); | ||
511 | |||
512 | rc.RequestMethod = "GET"; | ||
513 | |||
514 | Stream s = rc.Request(); | ||
515 | |||
516 | if (s == null) | ||
517 | return null; | ||
518 | |||
519 | if (s.Length > 0) | ||
520 | { | ||
521 | XmlSerializer xs = new XmlSerializer(typeof(AssetBase)); | ||
522 | |||
523 | AssetBase encAsset = (AssetBase)xs.Deserialize(s); | ||
524 | |||
525 | // Try decrypt it | ||
526 | if (DecryptAssetBase(encAsset)) | ||
527 | return encAsset; | ||
528 | } | ||
529 | |||
530 | return null; | ||
531 | } | ||
532 | |||
533 | public override void UpdateAsset(AssetBase asset) | ||
534 | { | ||
535 | throw new Exception("The method or operation is not implemented."); | ||
536 | } | ||
537 | |||
538 | public override void StoreAsset(AssetBase asset) | ||
539 | { | ||
540 | if (m_encryptOnUpload) | ||
541 | EncryptAssetBase(asset, m_encryptKey); | ||
542 | |||
543 | try | ||
544 | { | ||
545 | string assetUrl = _assetServerUrl + "/assets/"; | ||
546 | |||
547 | m_log.InfoFormat("[CRYPTO GRID ASSET CLIENT]: Sending store request for asset {0}", asset.FullID); | ||
548 | |||
549 | RestObjectPoster.BeginPostObject<AssetBase>(assetUrl, asset); | ||
550 | } | ||
551 | catch (Exception e) | ||
552 | { | ||
553 | m_log.ErrorFormat("[CRYPTO GRID ASSET CLIENT]: {0}", e); | ||
554 | } | ||
555 | } | ||
556 | |||
557 | #endregion | ||
558 | } | ||
559 | } | ||