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| 1 # -*- coding: utf-8 -*- | |
| 2 # Copyright 2013 Google Inc. All Rights Reserved. | |
| 3 # | |
| 4 # Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 # you may not use this file except in compliance with the License. | |
| 6 # You may obtain a copy of the License at | |
| 7 # | |
| 8 # http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 # | |
| 10 # Unless required by applicable law or agreed to in writing, software | |
| 11 # distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 # See the License for the specific language governing permissions and | |
| 14 # limitations under the License. | |
| 15 """Gsutil API for interacting with cloud storage providers.""" | |
| 16 | |
| 17 from __future__ import absolute_import | |
| 18 | |
| 19 | |
| 20 class CloudApi(object): | |
| 21 """Abstract base class for interacting with cloud storage providers. | |
| 22 | |
| 23 Implementations of the gsutil Cloud API are not guaranteed to be thread-safe. | |
| 24 Behavior when calling a gsutil Cloud API instance simultaneously across | |
| 25 threads is undefined and doing so will likely cause errors. Therefore, | |
| 26 a separate instance of the gsutil Cloud API should be instantiated per-thread. | |
| 27 """ | |
| 28 | |
| 29 def __init__(self, bucket_storage_uri_class, logger, provider=None, debug=0): | |
| 30 """Performs necessary setup for interacting with the cloud storage provider. | |
| 31 | |
| 32 Args: | |
| 33 bucket_storage_uri_class: boto storage_uri class, used by APIs that | |
| 34 provide boto translation or mocking. | |
| 35 logger: logging.logger for outputting log messages. | |
| 36 provider: Default provider prefix describing cloud storage provider to | |
| 37 connect to. | |
| 38 debug: Debug level for the API implementation (0..3). | |
| 39 """ | |
| 40 self.bucket_storage_uri_class = bucket_storage_uri_class | |
| 41 self.logger = logger | |
| 42 self.provider = provider | |
| 43 self.debug = debug | |
| 44 | |
| 45 def GetBucket(self, bucket_name, provider=None, fields=None): | |
| 46 """Gets Bucket metadata. | |
| 47 | |
| 48 Args: | |
| 49 bucket_name: Name of the bucket. | |
| 50 provider: Cloud storage provider to connect to. If not present, | |
| 51 class-wide default is used. | |
| 52 fields: If present, return only these Bucket metadata fields, for | |
| 53 example, ['logging', 'defaultObjectAcl'] | |
| 54 | |
| 55 Raises: | |
| 56 ArgumentException for errors during input validation. | |
| 57 ServiceException for errors interacting with cloud storage providers. | |
| 58 | |
| 59 Returns: | |
| 60 Bucket object. | |
| 61 """ | |
| 62 raise NotImplementedError('GetBucket must be overloaded') | |
| 63 | |
| 64 def ListBuckets(self, project_id=None, provider=None, fields=None): | |
| 65 """Lists bucket metadata for the given project. | |
| 66 | |
| 67 Args: | |
| 68 project_id: Project owning the buckets, default from config if None. | |
| 69 provider: Cloud storage provider to connect to. If not present, | |
| 70 class-wide default is used. | |
| 71 fields: If present, return only these metadata fields for the listing, | |
| 72 for example: | |
| 73 ['items/logging', 'items/defaultObjectAcl']. | |
| 74 Note that the WildcardIterator class should be used to list | |
| 75 buckets instead of calling this function directly. It amends | |
| 76 the fields definition from get-like syntax such as | |
| 77 ['logging', 'defaultObjectAcl'] so that the caller does not | |
| 78 need to prepend 'items/' or specify fields necessary for listing | |
| 79 (like nextPageToken). | |
| 80 | |
| 81 Raises: | |
| 82 ArgumentException for errors during input validation. | |
| 83 ServiceException for errors interacting with cloud storage providers. | |
| 84 | |
| 85 Returns: | |
| 86 Iterator over Bucket objects. | |
| 87 """ | |
| 88 raise NotImplementedError('ListBuckets must be overloaded') | |
| 89 | |
| 90 def PatchBucket(self, bucket_name, metadata, canned_acl=None, | |
| 91 canned_def_acl=None, preconditions=None, provider=None, | |
| 92 fields=None): | |
| 93 """Updates bucket metadata for the bucket with patch semantics. | |
| 94 | |
| 95 Args: | |
| 96 bucket_name: Name of bucket to update. | |
| 97 metadata: Bucket object defining metadata to be updated. | |
| 98 canned_acl: Canned ACL to apply to the bucket. | |
| 99 canned_def_acl: Canned default object ACL to apply to the bucket. | |
| 100 preconditions: Preconditions for the request. | |
| 101 provider: Cloud storage provider to connect to. If not present, | |
| 102 class-wide default is used. | |
| 103 fields: If present, return only these Bucket metadata fields. | |
| 104 | |
| 105 Raises: | |
| 106 ArgumentException for errors during input validation. | |
| 107 ServiceException for errors interacting with cloud storage providers. | |
| 108 | |
| 109 Returns: | |
| 110 Bucket object describing new bucket metadata. | |
| 111 """ | |
| 112 raise NotImplementedError('PatchBucket must be overloaded') | |
| 113 | |
| 114 def CreateBucket(self, bucket_name, project_id=None, metadata=None, | |
| 115 provider=None, fields=None): | |
| 116 """Creates a new bucket with the specified metadata. | |
| 117 | |
| 118 Args: | |
| 119 bucket_name: Name of the new bucket. | |
| 120 project_id: Project owner of the new bucket, default from config if None. | |
| 121 metadata: Bucket object defining new bucket metadata. | |
| 122 provider: Cloud storage provider to connect to. If not present, | |
| 123 class-wide default is used. | |
| 124 fields: If present, return only these Bucket metadata fields. | |
| 125 | |
| 126 Raises: | |
| 127 ArgumentException for errors during input validation. | |
| 128 ServiceException for errors interacting with cloud storage providers. | |
| 129 | |
| 130 Returns: | |
| 131 Bucket object describing new bucket metadata. | |
| 132 """ | |
| 133 raise NotImplementedError('CreateBucket must be overloaded') | |
| 134 | |
| 135 def DeleteBucket(self, bucket_name, preconditions=None, provider=None): | |
| 136 """Deletes a bucket. | |
| 137 | |
| 138 Args: | |
| 139 bucket_name: Name of the bucket to delete. | |
| 140 preconditions: Preconditions for the request. | |
| 141 provider: Cloud storage provider to connect to. If not present, | |
| 142 class-wide default is used. | |
| 143 | |
| 144 Raises: | |
| 145 ArgumentException for errors during input validation. | |
| 146 ServiceException for errors interacting with cloud storage providers. | |
| 147 | |
| 148 Returns: | |
| 149 None. | |
| 150 """ | |
| 151 raise NotImplementedError('DeleteBucket must be overloaded') | |
| 152 | |
| 153 class CsObjectOrPrefixType(object): | |
| 154 """Enum class for describing CsObjectOrPrefix types.""" | |
| 155 OBJECT = 'object' # Cloud object | |
| 156 PREFIX = 'prefix' # Cloud bucket subdirectory | |
| 157 | |
| 158 class CsObjectOrPrefix(object): | |
| 159 """Container class for ListObjects results.""" | |
| 160 | |
| 161 def __init__(self, data, datatype): | |
| 162 """Stores a ListObjects result. | |
| 163 | |
| 164 Args: | |
| 165 data: Root object, either an apitools Object or a string Prefix. | |
| 166 datatype: CsObjectOrPrefixType of data. | |
| 167 """ | |
| 168 self.data = data | |
| 169 self.datatype = datatype | |
| 170 | |
| 171 def ListObjects(self, bucket_name, prefix=None, delimiter=None, | |
| 172 all_versions=None, provider=None, fields=None): | |
| 173 """Lists objects (with metadata) and prefixes in a bucket. | |
| 174 | |
| 175 Args: | |
| 176 bucket_name: Bucket containing the objects. | |
| 177 prefix: Prefix for directory-like behavior. | |
| 178 delimiter: Delimiter for directory-like behavior. | |
| 179 all_versions: If true, list all object versions. | |
| 180 provider: Cloud storage provider to connect to. If not present, | |
| 181 class-wide default is used. | |
| 182 fields: If present, return only these metadata fields for the listing, | |
| 183 for example: | |
| 184 ['items/acl', 'items/updated', 'prefixes']. | |
| 185 Note that the WildcardIterator class should be used to list | |
| 186 objects instead of calling this function directly. It amends | |
| 187 the fields definition from get-like syntax such as | |
| 188 ['acl', 'updated'] so that the caller does not need to | |
| 189 prepend 'items/' or specify any fields necessary for listing | |
| 190 (such as prefixes or nextPageToken). | |
| 191 | |
| 192 Raises: | |
| 193 ArgumentException for errors during input validation. | |
| 194 ServiceException for errors interacting with cloud storage providers. | |
| 195 | |
| 196 Returns: | |
| 197 Iterator over CsObjectOrPrefix wrapper class. | |
| 198 """ | |
| 199 raise NotImplementedError('ListObjects must be overloaded') | |
| 200 | |
| 201 def GetObjectMetadata(self, bucket_name, object_name, generation=None, | |
| 202 provider=None, fields=None): | |
| 203 """Gets object metadata. | |
| 204 | |
| 205 Args: | |
| 206 bucket_name: Bucket containing the object. | |
| 207 object_name: Object name. | |
| 208 generation: Generation of the object to retrieve. | |
| 209 provider: Cloud storage provider to connect to. If not present, | |
| 210 class-wide default is used. | |
| 211 fields: If present, return only these Object metadata fields, for | |
| 212 example, ['acl', 'updated']. | |
| 213 | |
| 214 Raises: | |
| 215 ArgumentException for errors during input validation. | |
| 216 ServiceException for errors interacting with cloud storage providers. | |
| 217 | |
| 218 Returns: | |
| 219 Object object. | |
| 220 """ | |
| 221 raise NotImplementedError('GetObjectMetadata must be overloaded') | |
| 222 | |
| 223 def PatchObjectMetadata(self, bucket_name, object_name, metadata, | |
| 224 canned_acl=None, generation=None, preconditions=None, | |
| 225 provider=None, fields=None): | |
| 226 """Updates object metadata with patch semantics. | |
| 227 | |
| 228 Args: | |
| 229 bucket_name: Bucket containing the object. | |
| 230 object_name: Object name for object. | |
| 231 metadata: Object object defining metadata to be updated. | |
| 232 canned_acl: Canned ACL to be set on the object. | |
| 233 generation: Generation (or version) of the object to update. | |
| 234 preconditions: Preconditions for the request. | |
| 235 provider: Cloud storage provider to connect to. If not present, | |
| 236 class-wide default is used. | |
| 237 fields: If present, return only these Object metadata fields. | |
| 238 | |
| 239 Raises: | |
| 240 ArgumentException for errors during input validation. | |
| 241 ServiceException for errors interacting with cloud storage providers. | |
| 242 | |
| 243 Returns: | |
| 244 Updated object metadata. | |
| 245 """ | |
| 246 raise NotImplementedError('PatchObjectMetadata must be overloaded') | |
| 247 | |
| 248 class DownloadStrategy(object): | |
| 249 """Enum class for specifying download strategy.""" | |
| 250 ONE_SHOT = 'oneshot' | |
| 251 RESUMABLE = 'resumable' | |
| 252 | |
| 253 def GetObjectMedia(self, bucket_name, object_name, download_stream, | |
| 254 provider=None, generation=None, object_size=None, | |
| 255 download_strategy=DownloadStrategy.ONE_SHOT, start_byte=0, | |
| 256 end_byte=None, progress_callback=None, | |
| 257 serialization_data=None, digesters=None): | |
| 258 """Gets object data. | |
| 259 | |
| 260 Args: | |
| 261 bucket_name: Bucket containing the object. | |
| 262 object_name: Object name. | |
| 263 download_stream: Stream to send the object data to. | |
| 264 provider: Cloud storage provider to connect to. If not present, | |
| 265 class-wide default is used. | |
| 266 generation: Generation of the object to retrieve. | |
| 267 object_size: Total size of the object being downloaded. | |
| 268 download_strategy: Cloud API download strategy to use for download. | |
| 269 start_byte: Starting point for download (for resumable downloads and | |
| 270 range requests). Can be set to negative to request a range | |
| 271 of bytes (python equivalent of [:-3]) | |
| 272 end_byte: Ending point for download (for range requests). | |
| 273 progress_callback: Optional callback function for progress notifications. | |
| 274 Receives calls with arguments | |
| 275 (bytes_transferred, total_size). | |
| 276 serialization_data: Implementation-specific dict containing serialization | |
| 277 information for the download. | |
| 278 digesters: Dict of {string : digester}, where string is a name of a hash | |
| 279 algorithm, and digester is a validation digester that supports | |
| 280 update(bytes) and digest() using that algorithm. | |
| 281 Implementation can set the digester value to None to indicate | |
| 282 bytes were not successfully digested on-the-fly. | |
| 283 | |
| 284 Raises: | |
| 285 ArgumentException for errors during input validation. | |
| 286 ServiceException for errors interacting with cloud storage providers. | |
| 287 | |
| 288 Returns: | |
| 289 Content-encoding string if it was detected that the server sent an encoded | |
| 290 object during transfer, None otherwise. | |
| 291 """ | |
| 292 raise NotImplementedError('GetObjectMedia must be overloaded') | |
| 293 | |
| 294 def UploadObject(self, upload_stream, object_metadata, canned_acl=None, | |
| 295 size=None, preconditions=None, progress_callback=None, | |
| 296 provider=None, fields=None): | |
| 297 """Uploads object data and metadata. | |
| 298 | |
| 299 Args: | |
| 300 upload_stream: Seekable stream of object data. | |
| 301 object_metadata: Object metadata for new object. Must include bucket | |
| 302 and object name. | |
| 303 canned_acl: Optional canned ACL to apply to object. Overrides ACL set | |
| 304 in object_metadata. | |
| 305 size: Optional object size. | |
| 306 preconditions: Preconditions for the request. | |
| 307 progress_callback: Optional callback function for progress notifications. | |
| 308 Receives calls with arguments | |
| 309 (bytes_transferred, total_size). | |
| 310 provider: Cloud storage provider to connect to. If not present, | |
| 311 class-wide default is used. | |
| 312 fields: If present, return only these Object metadata fields. | |
| 313 | |
| 314 Raises: | |
| 315 ArgumentException for errors during input validation. | |
| 316 ServiceException for errors interacting with cloud storage providers. | |
| 317 | |
| 318 Returns: | |
| 319 Object object for newly created destination object. | |
| 320 """ | |
| 321 raise NotImplementedError('UploadObject must be overloaded') | |
| 322 | |
| 323 def UploadObjectStreaming(self, upload_stream, object_metadata, | |
| 324 canned_acl=None, preconditions=None, | |
| 325 progress_callback=None, provider=None, | |
| 326 fields=None): | |
| 327 """Uploads object data and metadata. | |
| 328 | |
| 329 Args: | |
| 330 upload_stream: Stream of object data. May not be seekable. | |
| 331 object_metadata: Object metadata for new object. Must include bucket | |
| 332 and object name. | |
| 333 canned_acl: Optional canned ACL to apply to object. Overrides ACL set | |
| 334 in object_metadata. | |
| 335 preconditions: Preconditions for the request. | |
| 336 progress_callback: Optional callback function for progress notifications. | |
| 337 Receives calls with arguments | |
| 338 (bytes_transferred, total_size), but fills in only | |
| 339 bytes_transferred. | |
| 340 provider: Cloud storage provider to connect to. If not present, | |
| 341 class-wide default is used. | |
| 342 fields: If present, return only these Object metadata fields. | |
| 343 | |
| 344 Raises: | |
| 345 ArgumentException for errors during input validation. | |
| 346 ServiceException for errors interacting with cloud storage providers. | |
| 347 | |
| 348 Returns: | |
| 349 Object object for newly created destination object. | |
| 350 """ | |
| 351 raise NotImplementedError('UploadObjectStreaming must be overloaded') | |
| 352 | |
| 353 def UploadObjectResumable( | |
| 354 self, upload_stream, object_metadata, canned_acl=None, | |
| 355 size=None, preconditions=None, serialization_data=None, | |
| 356 tracker_callback=None, progress_callback=None, provider=None, | |
| 357 fields=None): | |
| 358 """Uploads object data and metadata using a resumable upload strategy. | |
| 359 | |
| 360 Args: | |
| 361 upload_stream: Seekable stream of object data. | |
| 362 object_metadata: Object metadata for new object. Must include bucket | |
| 363 and object name. | |
| 364 canned_acl: Optional canned ACL to apply to object. Overrides ACL set | |
| 365 in object_metadata. | |
| 366 size: Total size of the object. | |
| 367 preconditions: Preconditions for the request. | |
| 368 serialization_data: Dict of {'url' : UploadURL} allowing for uploads to | |
| 369 be resumed. | |
| 370 tracker_callback: Callback function taking a upload URL string. | |
| 371 Guaranteed to be called when the implementation gets an | |
| 372 upload URL, allowing the caller to resume the upload | |
| 373 across process breaks by saving the upload URL in | |
| 374 a tracker file. | |
| 375 progress_callback: Optional callback function for progress notifications. | |
| 376 Receives calls with arguments | |
| 377 (bytes_transferred, total_size). | |
| 378 provider: Cloud storage provider to connect to. If not present, | |
| 379 class-wide default is used. | |
| 380 fields: If present, return only these Object metadata fields when the | |
| 381 upload is complete. | |
| 382 | |
| 383 Raises: | |
| 384 ArgumentException for errors during input validation. | |
| 385 ServiceException for errors interacting with cloud storage providers. | |
| 386 | |
| 387 Returns: | |
| 388 Object object for newly created destination object. | |
| 389 """ | |
| 390 raise NotImplementedError('UploadObjectResumable must be overloaded') | |
| 391 | |
| 392 def CopyObject(self, src_obj_metadata, dst_obj_metadata, src_generation=None, | |
| 393 canned_acl=None, preconditions=None, progress_callback=None, | |
| 394 max_bytes_per_call=None, provider=None, fields=None): | |
| 395 """Copies an object in the cloud. | |
| 396 | |
| 397 Args: | |
| 398 src_obj_metadata: Object metadata for source object. Must include | |
| 399 bucket name, object name, and etag. | |
| 400 dst_obj_metadata: Object metadata for new object. Must include bucket | |
| 401 and object name. | |
| 402 src_generation: Generation of the source object to copy. | |
| 403 canned_acl: Optional canned ACL to apply to destination object. Overrides | |
| 404 ACL set in dst_obj_metadata. | |
| 405 preconditions: Destination object preconditions for the request. | |
| 406 progress_callback: Optional callback function for progress notifications. | |
| 407 Receives calls with arguments | |
| 408 (bytes_transferred, total_size). | |
| 409 max_bytes_per_call: Integer describing maximum number of bytes | |
| 410 to rewrite per service call. | |
| 411 provider: Cloud storage provider to connect to. If not present, | |
| 412 class-wide default is used. | |
| 413 fields: If present, return only these Object metadata fields. | |
| 414 | |
| 415 Raises: | |
| 416 ArgumentException for errors during input validation. | |
| 417 ServiceException for errors interacting with cloud storage providers. | |
| 418 | |
| 419 Returns: | |
| 420 Object object for newly created destination object. | |
| 421 """ | |
| 422 raise NotImplementedError('CopyObject must be overloaded') | |
| 423 | |
| 424 def ComposeObject(self, src_objs_metadata, dst_obj_metadata, | |
| 425 preconditions=None, provider=None, fields=None): | |
| 426 """Composes an object in the cloud. | |
| 427 | |
| 428 Args: | |
| 429 src_objs_metadata: List of ComposeRequest.SourceObjectsValueListEntries | |
| 430 specifying the objects to compose. | |
| 431 dst_obj_metadata: Metadata for the destination object including bucket | |
| 432 and object name. | |
| 433 preconditions: Destination object preconditions for the request. | |
| 434 provider: Cloud storage provider to connect to. If not present, | |
| 435 class-wide default is used. | |
| 436 fields: If present, return only these Object metadata fields. | |
| 437 | |
| 438 Raises: | |
| 439 ArgumentException for errors during input validation. | |
| 440 ServiceException for errors interacting with cloud storage providers. | |
| 441 | |
| 442 Returns: | |
| 443 Composed object metadata. | |
| 444 """ | |
| 445 raise NotImplementedError('ComposeObject must be overloaded') | |
| 446 | |
| 447 def DeleteObject(self, bucket_name, object_name, preconditions=None, | |
| 448 generation=None, provider=None): | |
| 449 """Deletes an object. | |
| 450 | |
| 451 Args: | |
| 452 bucket_name: Name of the containing bucket. | |
| 453 object_name: Name of the object to delete. | |
| 454 preconditions: Preconditions for the request. | |
| 455 generation: Generation (or version) of the object to delete; if None, | |
| 456 deletes the live object. | |
| 457 provider: Cloud storage provider to connect to. If not present, | |
| 458 class-wide default is used. | |
| 459 | |
| 460 Raises: | |
| 461 ArgumentException for errors during input validation. | |
| 462 ServiceException for errors interacting with cloud storage providers. | |
| 463 | |
| 464 Returns: | |
| 465 None. | |
| 466 """ | |
| 467 raise NotImplementedError('DeleteObject must be overloaded') | |
| 468 | |
| 469 def WatchBucket(self, bucket_name, address, channel_id, token=None, | |
| 470 provider=None, fields=None): | |
| 471 """Creates a notification subscription for changes to objects in a bucket. | |
| 472 | |
| 473 Args: | |
| 474 bucket_name: Bucket containing the objects. | |
| 475 address: Address to which to send notifications. | |
| 476 channel_id: Unique ID string for the channel. | |
| 477 token: If present, token string is delivered with each notification. | |
| 478 provider: Cloud storage provider to connect to. If not present, | |
| 479 class-wide default is used. | |
| 480 fields: If present, return only these Channel metadata fields. | |
| 481 | |
| 482 Raises: | |
| 483 ArgumentException for errors during input validation. | |
| 484 ServiceException for errors interacting with cloud storage providers. | |
| 485 | |
| 486 Returns: | |
| 487 Channel object describing the notification subscription. | |
| 488 """ | |
| 489 raise NotImplementedError('WatchBucket must be overloaded') | |
| 490 | |
| 491 def StopChannel(self, channel_id, resource_id, provider=None): | |
| 492 """Stops a notification channel. | |
| 493 | |
| 494 Args: | |
| 495 channel_id: Unique ID string for the channel. | |
| 496 resource_id: Version-agnostic ID string for the channel. | |
| 497 provider: Cloud storage provider to connect to. If not present, | |
| 498 class-wide default is used. | |
| 499 | |
| 500 Raises: | |
| 501 ArgumentException for errors during input validation. | |
| 502 ServiceException for errors interacting with cloud storage providers. | |
| 503 | |
| 504 Returns: | |
| 505 None. | |
| 506 """ | |
| 507 raise NotImplementedError('StopChannel must be overloaded') | |
| 508 | |
| 509 | |
| 510 class Preconditions(object): | |
| 511 """Preconditions class for specifying preconditions to cloud API requests.""" | |
| 512 | |
| 513 def __init__(self, gen_match=None, meta_gen_match=None): | |
| 514 """Instantiates a Preconditions object. | |
| 515 | |
| 516 Args: | |
| 517 gen_match: Perform request only if generation of target object | |
| 518 matches the given integer. Ignored for bucket requests. | |
| 519 meta_gen_match: Perform request only if metageneration of target | |
| 520 object/bucket matches the given integer. | |
| 521 """ | |
| 522 self.gen_match = gen_match | |
| 523 self.meta_gen_match = meta_gen_match | |
| 524 | |
| 525 | |
| 526 class ArgumentException(Exception): | |
| 527 """Exception raised when arguments to a Cloud API method are invalid. | |
| 528 | |
| 529 This exception is never raised as a result of a failed call to a cloud | |
| 530 storage provider. | |
| 531 """ | |
| 532 | |
| 533 def __init__(self, reason): | |
| 534 Exception.__init__(self) | |
| 535 self.reason = reason | |
| 536 | |
| 537 def __repr__(self): | |
| 538 return str(self) | |
| 539 | |
| 540 def __str__(self): | |
| 541 return '%s: %s' % (self.__class__.__name__, self.reason) | |
| 542 | |
| 543 | |
| 544 class ProjectIdException(ArgumentException): | |
| 545 """Exception raised when a Project ID argument is required but not present.""" | |
| 546 | |
| 547 | |
| 548 class ServiceException(Exception): | |
| 549 """Exception raised when a cloud storage provider request fails. | |
| 550 | |
| 551 This exception is raised only as a result of a failed remote call. | |
| 552 """ | |
| 553 | |
| 554 def __init__(self, reason, status=None, body=None): | |
| 555 Exception.__init__(self) | |
| 556 self.reason = reason | |
| 557 self.status = status | |
| 558 self.body = body | |
| 559 | |
| 560 def __repr__(self): | |
| 561 return str(self) | |
| 562 | |
| 563 def __str__(self): | |
| 564 message = '%s:' % self.__class__.__name__ | |
| 565 if self.status: | |
| 566 message += ' %s' % self.status | |
| 567 message += ' %s' % self.reason | |
| 568 if self.body: | |
| 569 message += '\n%s' % self.body | |
| 570 return message | |
| 571 | |
| 572 | |
| 573 class RetryableServiceException(ServiceException): | |
| 574 """Exception class for retryable exceptions.""" | |
| 575 | |
| 576 | |
| 577 class ResumableDownloadException(RetryableServiceException): | |
| 578 """Exception raised for res. downloads that can be retried later.""" | |
| 579 | |
| 580 | |
| 581 class ResumableUploadException(RetryableServiceException): | |
| 582 """Exception raised for res. uploads that can be retried w/ same upload ID.""" | |
| 583 | |
| 584 | |
| 585 class ResumableUploadStartOverException(RetryableServiceException): | |
| 586 """Exception raised for res. uploads that can be retried w/ new upload ID.""" | |
| 587 | |
| 588 | |
| 589 class ResumableUploadAbortException(ServiceException): | |
| 590 """Exception raised for resumable uploads that cannot be retried later.""" | |
| 591 | |
| 592 | |
| 593 class AuthenticationException(ServiceException): | |
| 594 """Exception raised for errors during the authentication process.""" | |
| 595 | |
| 596 | |
| 597 class PreconditionException(ServiceException): | |
| 598 """Exception raised for precondition failures.""" | |
| 599 | |
| 600 | |
| 601 class NotFoundException(ServiceException): | |
| 602 """Exception raised when a resource is not found (404).""" | |
| 603 | |
| 604 | |
| 605 class NotEmptyException(ServiceException): | |
| 606 """Exception raised when trying to delete a bucket is not empty.""" | |
| 607 | |
| 608 | |
| 609 class BadRequestException(ServiceException): | |
| 610 """Exception raised for malformed requests. | |
| 611 | |
| 612 Where it is possible to detect invalid arguments prior to sending them | |
| 613 to the server, an ArgumentException should be raised instead. | |
| 614 """ | |
| 615 | |
| 616 | |
| 617 class AccessDeniedException(ServiceException): | |
| 618 """Exception raised when authenticated user has insufficient access rights. | |
| 619 | |
| 620 This is raised when the authentication process succeeded but the | |
| 621 authenticated user does not have access rights to the requested resource. | |
| 622 """ | |
| 623 | |
| 624 | |
| OLD | NEW |