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|
# frozen_string_literal: true
#-------------------------------------------------------------------------
# # Copyright (c) Microsoft and contributors. All rights reserved.
#
# The MIT License(MIT)
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files(the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions :
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#--------------------------------------------------------------------------
require "base64"
module Azure::Storage
module Blob
# Represents a Block as part of a BlockList
# The type should be one of :uncommitted, :committed or :latest
class Block
def initialize
@type = :latest
yield self if block_given?
end
attr_accessor :name
attr_accessor :size
attr_accessor :type
end
# Public: Creates a new block blob or updates the content of an existing block blob.
#
# Updating an existing block blob overwrites any existing metadata on the blob
# Partial updates are not supported with create_block_blob the content of the
# existing blob is overwritten with the content of the new blob. To perform a
# partial update of the content of a block blob, use the create_block_list
# method.
#
# Note that the default content type is application/octet-stream.
#
# ==== Attributes
#
# * +container+ - String. The container name.
# * +blob+ - String. The blob name.
# * +content+ - IO or String. The content of the blob.
# * +options+ - Hash. Optional parameters.
#
# ==== Options
#
# Accepted key/value pairs in options parameter are:
# * +:transactional_md5+ - String. An MD5 hash of the blob content. This hash is used to verify the integrity of the blob during transport.
# When this header is specified, the storage service checks the hash that has arrived with the one that was sent.
# If the two hashes do not match, the operation will fail with error code 400 (Bad Request).
# * +:single_upload_threshold+ - Integer. Threshold in bytes for single upload, must be lower than 256MB or 256MB will be used.
# * +:content_length+ - Integer. Length of the content to upload, must be specified if 'content' does not implement 'size'.
# * +:content_type+ - String. Content type for the blob. Will be saved with blob.
# * +:content_encoding+ - String. Content encoding for the blob. Will be saved with blob.
# * +:content_language+ - String. Content language for the blob. Will be saved with blob.
# * +:content_md5+ - String. Content MD5 for the blob. Will be saved with blob.
# * +:cache_control+ - String. Cache control for the blob. Will be saved with blob.
# * +:content_disposition+ - String. Conveys additional information about how to process the response payload,
# and also can be used to attach additional metadata
# * +:metadata+ - Hash. Custom metadata values to store with the blob.
# * +:timeout+ - Integer. A timeout in seconds.
# * +:request_id+ - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded
# in the analytics logs when storage analytics logging is enabled.
# * +:if_modified_since+ - String. A DateTime value. Specify this conditional header to create a new blob
# only if the blob has been modified since the specified date/time. If the blob has not been modified,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_unmodified_since+ - String. A DateTime value. Specify this conditional header to create a new blob
# only if the blob has not been modified since the specified date/time. If the blob has been modified,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_match+ - String. An ETag value. Specify an ETag value for this conditional header to create a new blob
# only if the blob's ETag value matches the value specified. If the values do not match,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_none_match+ - String. An ETag value. Specify an ETag value for this conditional header to create a new blob
# only if the blob's ETag value does not match the value specified. If the values are identical,
# the Blob service returns status code 412 (Precondition Failed).
# * +:lease_id+ - String. Required if the blob has an active lease. To perform this operation on a blob with an active lease,
# specify the valid lease ID for this header.
#
# See http://msdn.microsoft.com/en-us/library/azure/dd179451.aspx
#
# Returns a Blob
def create_block_blob(container, blob, content, options = {})
size = if content.respond_to? :size
content.size
elsif options[:content_length]
options[:content_length]
else
raise ArgumentError, "Either optional parameter 'content_length' should be set or 'content' should implement 'size' method to get payload's size."
end
threshold = get_single_upload_threshold(options[:single_upload_threshold])
if size > threshold
create_block_blob_multiple_put(container, blob, content, size, options)
else
create_block_blob_single_put(container, blob, content, options)
end
end
# Public: Creates a new block to be committed as part of a block blob.
#
# ==== Attributes
#
# * +container+ - String. The container name.
# * +blob+ - String. The blob name.
# * +block_id+ - String. The block id. Note: this should be the raw block id, not Base64 encoded.
# * +content+ - IO or String. The content of the blob.
# * +options+ - Hash. Optional parameters.
#
# ==== Options
#
# Accepted key/value pairs in options parameter are:
# * +:content_md5+ - String. Content MD5 for the request contents.
# * +:timeout+ - Integer. A timeout in seconds.
# * +:request_id+ - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded
# in the analytics logs when storage analytics logging is enabled.
# * +:lease_id+ - String. Required if the blob has an active lease. To perform this operation on a blob with an
# active lease, specify the valid lease ID for this header.
#
# See http://msdn.microsoft.com/en-us/library/azure/dd135726.aspx
#
# Returns response of the operation
def put_blob_block(container, blob, block_id, content, options = {})
query = { "comp" => "block" }
StorageService.with_query query, "blockid", Base64.strict_encode64(block_id)
StorageService.with_query query, "timeout", options[:timeout].to_s if options[:timeout]
uri = blob_uri(container, blob, query)
headers = {}
StorageService.with_header headers, "Content-MD5", options[:content_md5]
headers["x-ms-lease-id"] = options[:lease_id] if options[:lease_id]
response = call(:put, uri, content, headers, options)
response.headers["Content-MD5"]
end
# Public: Commits existing blob blocks to a blob.
#
# This method writes a blob by specifying the list of block IDs that make up the
# blob. In order to be written as part of a blob, a block must have been
# successfully written to the server in a prior put_blob_block method.
#
# You can call Put Block List to update a blob by uploading only those blocks
# that have changed, then committing the new and existing blocks together.
# You can do this by specifying whether to commit a block from the committed
# block list or from the uncommitted block list, or to commit the most recently
# uploaded version of the block, whichever list it may belong to.
#
# ==== Attributes
#
# * +container+ - String. The container name.
# * +blob+ - String. The blob name.
# * +block_list+ - Array. A ordered list of lists in the following format:
# [ ["block_id1", :committed], ["block_id2", :uncommitted], ["block_id3"], ["block_id4", :committed]... ]
# The first element of the inner list is the block_id, the second is optional
# and can be either :committed or :uncommitted to indicate in which group of blocks
# the id should be looked for. If it is omitted, the latest of either group will be used.
# * +options+ - Hash. Optional parameters.
#
# ==== Options
#
# Accepted key/value pairs in options parameter are:
# * +:transactional_md5+ - String. Content MD5 for the request contents (not the blob contents!)
# * +:content_type+ - String. Content type for the blob. Will be saved with blob.
# * +:content_encoding+ - String. Content encoding for the blob. Will be saved with blob.
# * +:content_language+ - String. Content language for the blob. Will be saved with blob.
# * +:content_md5+ - String. Content MD5 for the blob. Will be saved with blob.
# * +:cache_control+ - String. Cache control for the blob. Will be saved with blob.
# * +:content_disposition+ - String. Conveys additional information about how to process the response payload,
# and also can be used to attach additional metadata
# * +:metadata+ - Hash. Custom metadata values to store with the blob.
# * +:timeout+ - Integer. A timeout in seconds.
# * +:request_id+ - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded
# in the analytics logs when storage analytics logging is enabled.
# * +:lease_id+ - String. Required if the blob has an active lease. To perform this operation on a blob with an
# active lease, specify the valid lease ID for this header.
#
# This operation also supports the use of conditional headers to commit the block list if a specified condition is met.
# For more information, see https://msdn.microsoft.com/en-us/library/azure/dd179371.aspx
#
# See http://msdn.microsoft.com/en-us/library/azure/dd179467.aspx
#
# Returns nil on success
def commit_blob_blocks(container, blob, block_list, options = {})
query = { "comp" => "blocklist" }
StorageService.with_query query, "timeout", options[:timeout].to_s if options[:timeout]
uri = blob_uri(container, blob, query)
headers = {}
unless options.empty?
StorageService.with_header headers, "Content-MD5", options[:transactional_md5]
StorageService.with_header headers, "x-ms-blob-content-type", options[:content_type]
StorageService.with_header headers, "x-ms-blob-content-encoding", options[:content_encoding]
StorageService.with_header headers, "x-ms-blob-content-language", options[:content_language]
StorageService.with_header headers, "x-ms-blob-content-md5", options[:content_md5]
StorageService.with_header headers, "x-ms-blob-cache-control", options[:cache_control]
StorageService.with_header headers, "x-ms-blob-content-disposition", options[:content_disposition]
StorageService.add_metadata_to_headers(options[:metadata], headers)
add_blob_conditional_headers(options, headers)
headers["x-ms-lease-id"] = options[:lease_id] if options[:lease_id]
end
headers["x-ms-blob-content-type"] = Default::CONTENT_TYPE_VALUE unless headers["x-ms-blob-content-type"]
body = Serialization.block_list_to_xml(block_list)
call(:put, uri, body, headers, options)
nil
end
# Public: Retrieves the list of blocks that have been uploaded as part of a block blob.
#
# There are two block lists maintained for a blob:
# 1) Committed Block List: The list of blocks that have been successfully
# committed to a given blob with commitBlobBlocks.
# 2) Uncommitted Block List: The list of blocks that have been uploaded for a
# blob using Put Block (REST API), but that have not yet been committed.
# These blocks are stored in Microsoft Azure in association with a blob, but do
# not yet form part of the blob.
#
# ==== Attributes
#
# * +container+ - String. The container name.
# * +blob+ - String. The blob name.
# * +options+ - Hash. Optional parameters.
#
# ==== Options
#
# Accepted key/value pairs in options parameter are:
# * +:blocklist_type+ - Symbol. One of :all, :committed, :uncommitted. Defaults to :all (optional)
# * +:snapshot+ - String. An opaque DateTime value that specifies the blob snapshot to
# retrieve information from. (optional)
# * +:timeout+ - Integer. A timeout in seconds.
# * +:request_id+ - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded
# in the analytics logs when storage analytics logging is enabled.
# * +:location_mode+ - LocationMode. Specifies the location mode used to decide
# which location the request should be sent to.
# * +:lease_id+ - String. If this header is specified, the operation will be performed only if both of the
# following conditions are met:
# - The blob's lease is currently active.
# - The lease ID specified in the request matches that of the blob.
# If this header is specified and both of these conditions are not met, the request will fail
# and the operation will fail with status code 412 (Precondition Failed).
#
# See http://msdn.microsoft.com/en-us/library/azure/dd179400.aspx
#
# Returns a list of Azure::Storage::Entity::Blob::Block instances
def list_blob_blocks(container, blob, options = {})
options[:blocklist_type] = options[:blocklist_type] || :all
query = { "comp" => "blocklist" }
StorageService.with_query query, "snapshot", options[:snapshot]
StorageService.with_query query, "blocklisttype", options[:blocklist_type].to_s if options[:blocklist_type]
StorageService.with_query query, "timeout", options[:timeout].to_s if options[:timeout]
headers = options[:lease_id] ? { "x-ms-lease-id" => options[:lease_id] } : {}
options[:request_location_mode] = Azure::Storage::Common::RequestLocationMode::PRIMARY_OR_SECONDARY
uri = blob_uri(container, blob, query, options)
response = call(:get, uri, nil, headers, options)
Serialization.block_list_from_xml(response.body)
end
# Public: Creates a new block blob or updates the content of an existing block blob.
#
# Updating an existing block blob overwrites any existing metadata on the blob
# Partial updates are not supported with create_block_blob the content of the
# existing blob is overwritten with the content of the new blob. To perform a
# partial update of the content of a block blob, use the create_block_list
# method.
#
# Note that the default content type is application/octet-stream.
#
# ==== Attributes
#
# * +container+ - String. The container name.
# * +blob+ - String. The blob name.
# * +content+ - IO or String. The content of the blob.
# * +options+ - Hash. Optional parameters.
#
# ==== Options
#
# Accepted key/value pairs in options parameter are:
# * +:transactional_md5+ - String. An MD5 hash of the blob content. This hash is used to verify the integrity of the blob during transport.
# When this header is specified, the storage service checks the hash that has arrived with the one that was sent.
# If the two hashes do not match, the operation will fail with error code 400 (Bad Request).
# * +:single_upload_threshold+ - Integer. Threshold in bytes for single upload, must be lower than 256MB or 256MB will be used.
# * +:content_length+ - Integer. Length of the content to upload, must be specified if 'content' does not implement 'size'.
# * +:content_type+ - String. Content type for the blob. Will be saved with blob.
# * +:content_encoding+ - String. Content encoding for the blob. Will be saved with blob.
# * +:content_language+ - String. Content language for the blob. Will be saved with blob.
# * +:content_md5+ - String. Content MD5 for the blob. Will be saved with blob.
# * +:cache_control+ - String. Cache control for the blob. Will be saved with blob.
# * +:content_disposition+ - String. Conveys additional information about how to process the response payload,
# and also can be used to attach additional metadata
# * +:metadata+ - Hash. Custom metadata values to store with the blob.
# * +:timeout+ - Integer. A timeout in seconds.
# * +:request_id+ - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded
# in the analytics logs when storage analytics logging is enabled.
# * +:if_modified_since+ - String. A DateTime value. Specify this conditional header to create a new blob
# only if the blob has been modified since the specified date/time. If the blob has not been modified,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_unmodified_since+ - String. A DateTime value. Specify this conditional header to create a new blob
# only if the blob has not been modified since the specified date/time. If the blob has been modified,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_match+ - String. An ETag value. Specify an ETag value for this conditional header to create a new blob
# only if the blob's ETag value matches the value specified. If the values do not match,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_none_match+ - String. An ETag value. Specify an ETag value for this conditional header to create a new blob
# only if the blob's ETag value does not match the value specified. If the values are identical,
# the Blob service returns status code 412 (Precondition Failed).
# * +:lease_id+ - String. Required if the blob has an active lease. To perform this operation on a blob with an active lease,
# specify the valid lease ID for this header.
#
# See http://msdn.microsoft.com/en-us/library/azure/dd179451.aspx
#
# Returns a Blob
alias create_block_blob_from_content create_block_blob
# Protected: Creates a new block blob or updates the content of an existing block blob with single API call
#
# Updating an existing block blob overwrites any existing metadata on the blob
# Partial updates are not supported with create_block_blob the content of the
# existing blob is overwritten with the content of the new blob. To perform a
# partial update of the content of a block blob, use the create_block_list
# method.
#
# Note that the default content type is application/octet-stream.
#
# ==== Attributes
#
# * +container+ - String. The container name.
# * +blob+ - String. The blob name.
# * +content+ - IO or String. The content of the blob.
# * +options+ - Hash. Optional parameters.
#
# ==== Options
#
# Accepted key/value pairs in options parameter are:
# * +:transactional_md5+ - String. An MD5 hash of the blob content. This hash is used to verify the integrity of the blob during transport.
# When this header is specified, the storage service checks the hash that has arrived with the one that was sent.
# If the two hashes do not match, the operation will fail with error code 400 (Bad Request).
# * +:content_length+ - Integer. Length of the content to upload, must be specified if 'content' does not implement 'size'.
# * +:content_type+ - String. Content type for the blob. Will be saved with blob.
# * +:content_encoding+ - String. Content encoding for the blob. Will be saved with blob.
# * +:content_language+ - String. Content language for the blob. Will be saved with blob.
# * +:content_md5+ - String. Content MD5 for the blob. Will be saved with blob.
# * +:cache_control+ - String. Cache control for the blob. Will be saved with blob.
# * +:content_disposition+ - String. Conveys additional information about how to process the response payload,
# and also can be used to attach additional metadata
# * +:metadata+ - Hash. Custom metadata values to store with the blob.
# * +:timeout+ - Integer. A timeout in seconds.
# * +:request_id+ - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded
# in the analytics logs when storage analytics logging is enabled.
# * +:if_modified_since+ - String. A DateTime value. Specify this conditional header to create a new blob
# only if the blob has been modified since the specified date/time. If the blob has not been modified,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_unmodified_since+ - String. A DateTime value. Specify this conditional header to create a new blob
# only if the blob has not been modified since the specified date/time. If the blob has been modified,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_match+ - String. An ETag value. Specify an ETag value for this conditional header to create a new blob
# only if the blob's ETag value matches the value specified. If the values do not match,
# the Blob service returns status code 412 (Precondition Failed).
# * +:if_none_match+ - String. An ETag value. Specify an ETag value for this conditional header to create a new blob
# only if the blob's ETag value does not match the value specified. If the values are identical,
# the Blob service returns status code 412 (Precondition Failed).
# * +:lease_id+ - String. Required if the blob has an active lease. To perform this operation on a blob with an active lease,
# specify the valid lease ID for this header.
#
# See http://msdn.microsoft.com/en-us/library/azure/dd179451.aspx
#
# Returns a Blob
protected
def create_block_blob_single_put(container, blob, content, options = {})
query = {}
StorageService.with_query query, "timeout", options[:timeout].to_s if options[:timeout]
uri = blob_uri(container, blob, query)
headers = {}
# set x-ms-blob-type to BlockBlob
StorageService.with_header headers, "x-ms-blob-type", "BlockBlob"
# set the rest of the optional headers
StorageService.with_header headers, "Content-MD5", options[:transactional_md5]
StorageService.with_header headers, "Content-Length", options[:content_length]
StorageService.with_header headers, "x-ms-blob-content-encoding", options[:content_encoding]
StorageService.with_header headers, "x-ms-blob-content-language", options[:content_language]
StorageService.with_header headers, "x-ms-blob-content-md5", options[:content_md5]
StorageService.with_header headers, "x-ms-blob-cache-control", options[:cache_control]
StorageService.with_header headers, "x-ms-blob-content-disposition", options[:content_disposition]
StorageService.with_header headers, "x-ms-lease-id", options[:lease_id]
StorageService.add_metadata_to_headers options[:metadata], headers
add_blob_conditional_headers options, headers
headers["x-ms-blob-content-type"] = get_or_apply_content_type(content, options[:content_type])
# call PutBlob
response = call(:put, uri, content, headers, options)
result = Serialization.blob_from_headers(response.headers)
result.name = blob
result.metadata = options[:metadata] if options[:metadata]
result
end
# Protected: Creates a new block blob or updates the content of an existing block blob with multiple upload
#
# Updating an existing block blob overwrites any existing metadata on the blob
# Partial updates are not supported with create_block_blob the content of the
# existing blob is overwritten with the content of the new blob. To perform a
# partial update of the content of a block blob, use the create_block_list
# method.
#
# Note that the default content type is application/octet-stream.
#
# ==== Attributes
#
# * +container+ - String. The container name.
# * +blob+ - String. The blob name.
# * +content+ - IO or String. The content of the blob.
# * +size+ - Integer. The size of the content.
# * +options+ - Hash. Optional parameters.
#
# ==== Options
#
# Accepted key/value pairs in options parameter are:
# * +:content_type+ - String. Content type for the blob. Will be saved with blob.
# * +:content_encoding+ - String. Content encoding for the blob. Will be saved with blob.
# * +:content_language+ - String. Content language for the blob. Will be saved with blob.
# * +:content_md5+ - String. Content MD5 for the blob. Will be saved with blob.
# * +:cache_control+ - String. Cache control for the blob. Will be saved with blob.
# * +:content_disposition+ - String. Conveys additional information about how to process the response payload,
# and also can be used to attach additional metadata
# * +:metadata+ - Hash. Custom metadata values to store with the blob.
# * +:timeout+ - Integer. A timeout in seconds.
# * +:request_id+ - String. Provides a client-generated, opaque value with a 1 KB character limit that is recorded
# in the analytics logs when storage analytics logging is enabled.
# * +:lease_id+ - String. Required if the blob has an active lease. To perform this operation on a blob with an active lease,
# specify the valid lease ID for this header.
#
# See http://msdn.microsoft.com/en-us/library/azure/dd179451.aspx
#
# Returns a Blob
protected
def create_block_blob_multiple_put(container, blob, content, size, options = {})
content_type = get_or_apply_content_type(content, options[:content_type])
content = StringIO.new(content) if content.is_a? String
block_size = get_block_size(size)
# Get the number of blocks
block_count = (Float(size) / Float(block_size)).ceil
block_list = []
for block_id in 0...block_count
id = block_id.to_s.rjust(6, "0")
put_blob_block(container, blob, id, content.read(block_size), timeout: options[:timeout], lease_id: options[:lease_id])
block_list.push([id])
end
# Commit the blocks put
commit_options = {}
commit_options[:content_type] = content_type
commit_options[:content_encoding] = options[:content_encoding] if options[:content_encoding]
commit_options[:content_language] = options[:content_language] if options[:content_language]
commit_options[:content_md5] = options[:content_md5] if options[:content_md5]
commit_options[:cache_control] = options[:cache_control] if options[:cache_control]
commit_options[:content_disposition] = options[:content_disposition] if options[:content_disposition]
commit_options[:metadata] = options[:metadata] if options[:metadata]
commit_options[:timeout] = options[:timeout] if options[:timeout]
commit_options[:request_id] = options[:request_id] if options[:request_id]
commit_options[:lease_id] = options[:lease_id] if options[:lease_id]
commit_blob_blocks(container, blob, block_list, commit_options)
get_properties_options = {}
get_properties_options[:lease_id] = options[:lease_id] if options[:lease_id]
# Get the blob properties
get_blob_properties(container, blob, get_properties_options)
end
# Protected: Gets the single upload threshold according to user's preference
#
# ==== Attributes
#
# * +container+ - String. The container name.
#
# Returns an Integer
protected
def get_single_upload_threshold(userThreshold)
if userThreshold.nil?
BlobConstants::DEFAULT_SINGLE_BLOB_PUT_THRESHOLD_IN_BYTES
elsif userThreshold <= 0
raise ArgumentError, "Single Upload Threshold should be positive number"
elsif userThreshold < BlobConstants::MAX_SINGLE_UPLOAD_BLOB_SIZE_IN_BYTES
userThreshold
else
BlobConstants::MAX_SINGLE_UPLOAD_BLOB_SIZE_IN_BYTES
end
end
protected
def get_block_size(size)
if size > BlobConstants::MAX_BLOCK_BLOB_SIZE
raise ArgumentError, "Block blob size should be less than #{BlobConstants::MAX_BLOCK_BLOB_SIZE} bytes in size"
elsif (size / BlobConstants::MAX_BLOCK_COUNT) < BlobConstants::DEFAULT_WRITE_BLOCK_SIZE_IN_BYTES
BlobConstants::DEFAULT_WRITE_BLOCK_SIZE_IN_BYTES
else
BlobConstants::MAX_BLOCK_SIZE
end
end
end
end
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