# Path: invenio_files_rest/errors.py
# class BucketLockedError(InvalidOperationError):
#     """Exception raised when a bucket is locked."""
# 
#     code = 403
#     description = "Bucket is locked for modifications."
# 
# class FileInstanceAlreadySetError(InvalidOperationError):
#     """Exception raised when file instance already set on object."""
# 
# class FileInstanceUnreadableError(InvalidOperationError):
#     """Exception raised when trying to get an unreadable file."""
# 
#     code = 503
#     description = "File storage is offline."
# 
# class FileSizeError(StorageError):
#     """Exception raised when a file larger than allowed."""
# 
#     code = 400
# 
# class InvalidKeyError(InvalidOperationError):
#     """Invalid key."""
# 
#     code = 400
#     description = "Filename is too long."
# 
# class InvalidOperationError(FilesException):
#     """Exception raised when an invalid operation is performed."""
# 
#     code = 403
# 
# class MultipartAlreadyCompleted(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 403
#     description = "Multipart upload is already completed."
# 
# class MultipartInvalidChunkSize(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Invalid part size."
# 
# class MultipartInvalidPartNumber(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Invalid part number."
# 
# class MultipartInvalidSize(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Invalid file size."
# 
# class MultipartMissingParts(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Not all parts have been uploaded."
# 
# class MultipartNotCompleted(MultipartException):
#     """Exception raised when multipart object is not already completed."""
# 
#     code = 400
#     description = "Multipart upload is already completed."
# 
# Path: invenio_files_rest/proxies.py

# 
# Path: invenio_files_rest/utils.py
# def guess_mimetype(filename):
#     """Map extra mimetype with the encoding provided.
# 
#     :returns: The extra mimetype.
#     """
#     m, encoding = mimetypes.guess_type(filename)
#     if encoding:
#         m = ENCODING_MIMETYPES.get(encoding, None)
#     return m or 'application/octet-stream'


import re
import sys
import uuid
from datetime import datetime
from flask import current_app
from functools import wraps
from invenio_db import db
from os.path import basename
from sqlalchemy.dialects import mysql
from sqlalchemy.ext.hybrid import hybrid_property
from sqlalchemy.orm import validates
from sqlalchemy.orm.exc import MultipleResultsFound
from sqlalchemy_utils.types import UUIDType
from .errors import BucketLockedError, FileInstanceAlreadySetError, \
    FileInstanceUnreadableError, FileSizeError, InvalidKeyError, \
    InvalidOperationError, MultipartAlreadyCompleted, \
    MultipartInvalidChunkSize, MultipartInvalidPartNumber, \
    MultipartInvalidSize, MultipartMissingParts, MultipartNotCompleted
from .proxies import current_files_rest
from .utils import guess_mimetype
   many object versions.
 * **Locations** - A bucket belongs to a specific location. Locations can be
   used to represent e.g. different storage systems.
 * **Multipart Objects** - Identified by UUIDs and belongs to a specific bucket
   and key.
 * **Part object** - Identified by their multipart object and a part number.

The actual file access is handled by a storage interface. Also, objects do not
have their own model, but are represented via the :py:data:`ObjectVersion`
model.
"""



slug_pattern = re.compile('^[a-z][a-z0-9-]+$')


#
# Helpers
#
def validate_key(key):
    """Validate key.

    :param key: The key to validate.
    :raises invenio_files_rest.errors.InvalidKeyError: If the key is longer
        than the maximum length defined in
        :data:`invenio_files_rest.config.FILES_REST_FILE_URI_MAX_LEN`.
    :returns: The key.
    """
    if len(key) > current_app.config['FILES_REST_OBJECT_KEY_MAX_LEN']:

# Path: invenio_files_rest/errors.py
# class BucketLockedError(InvalidOperationError):
#     """Exception raised when a bucket is locked."""
# 
#     code = 403
#     description = "Bucket is locked for modifications."
# 
# class FileInstanceAlreadySetError(InvalidOperationError):
#     """Exception raised when file instance already set on object."""
# 
# class FileInstanceUnreadableError(InvalidOperationError):
#     """Exception raised when trying to get an unreadable file."""
# 
#     code = 503
#     description = "File storage is offline."
# 
# class FileSizeError(StorageError):
#     """Exception raised when a file larger than allowed."""
# 
#     code = 400
# 
# class InvalidKeyError(InvalidOperationError):
#     """Invalid key."""
# 
#     code = 400
#     description = "Filename is too long."
# 
# class InvalidOperationError(FilesException):
#     """Exception raised when an invalid operation is performed."""
# 
#     code = 403
# 
# class MultipartAlreadyCompleted(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 403
#     description = "Multipart upload is already completed."
# 
# class MultipartInvalidChunkSize(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Invalid part size."
# 
# class MultipartInvalidPartNumber(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Invalid part number."
# 
# class MultipartInvalidSize(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Invalid file size."
# 
# class MultipartMissingParts(MultipartException):
#     """Exception raised when multipart object is already completed."""
# 
#     code = 400
#     description = "Not all parts have been uploaded."
# 
# class MultipartNotCompleted(MultipartException):
#     """Exception raised when multipart object is not already completed."""
# 
#     code = 400
#     description = "Multipart upload is already completed."
# 
# Path: invenio_files_rest/proxies.py

# 
# Path: invenio_files_rest/utils.py
# def guess_mimetype(filename):
#     """Map extra mimetype with the encoding provided.
# 
#     :returns: The extra mimetype.
#     """
#     m, encoding = mimetypes.guess_type(filename)
#     if encoding:
#         m = ENCODING_MIMETYPES.get(encoding, None)
#     return m or 'application/octet-stream'


# Path: invenio_files_rest/models.py
import re
import sys
import uuid
from datetime import datetime
from flask import current_app
from functools import wraps
from invenio_db import db
from os.path import basename
from sqlalchemy.dialects import mysql
from sqlalchemy.ext.hybrid import hybrid_property
from sqlalchemy.orm import validates
from sqlalchemy.orm.exc import MultipleResultsFound
from sqlalchemy_utils.types import UUIDType
from .errors import BucketLockedError, FileInstanceAlreadySetError, \
    FileInstanceUnreadableError, FileSizeError, InvalidKeyError, \
    InvalidOperationError, MultipartAlreadyCompleted, \
    MultipartInvalidChunkSize, MultipartInvalidPartNumber, \
    MultipartInvalidSize, MultipartMissingParts, MultipartNotCompleted
from .proxies import current_files_rest
from .utils import guess_mimetype

   many object versions.
 * **Locations** - A bucket belongs to a specific location. Locations can be
   used to represent e.g. different storage systems.
 * **Multipart Objects** - Identified by UUIDs and belongs to a specific bucket
   and key.
 * **Part object** - Identified by their multipart object and a part number.

The actual file access is handled by a storage interface. Also, objects do not
have their own model, but are represented via the :py:data:`ObjectVersion`
model.
"""



slug_pattern = re.compile('^[a-z][a-z0-9-]+$')


#
# Helpers
#
def validate_key(key):
    """Validate key.

    :param key: The key to validate.
    :raises invenio_files_rest.errors.InvalidKeyError: If the key is longer
        than the maximum length defined in
        :data:`invenio_files_rest.config.FILES_REST_FILE_URI_MAX_LEN`.
    :returns: The key.
    """
    if len(key) > current_app.config['FILES_REST_OBJECT_KEY_MAX_LEN']:

        raise InvalidKeyError()