Esempio n. 1
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def _update_entity(entity, if_match, encryption_required=False,
                   key_encryption_key=None, encryption_resolver=None):
    '''
    Constructs an update entity request.
    :param entity:
        The entity to insert. Could be a dict or an entity object.
    :param object key_encryption_key:
        The user-provided key-encryption-key. Must implement the following methods:
        wrap_key(key)--wraps the specified key using an algorithm of the user's choice.
        get_key_wrap_algorithm()--returns the algorithm used to wrap the specified symmetric key.
        get_kid()--returns a string key id for this key-encryption-key.
    :param function(partition_key, row_key, property_name) encryption_resolver:
        A function that takes in an entities partition key, row key, and property name and returns
        a boolean that indicates whether that property should be encrypted.
    '''
    _validate_not_none('if_match', if_match)
    _validate_entity(entity, key_encryption_key is not None)
    _validate_encryption_required(encryption_required, key_encryption_key)

    request = HTTPRequest()
    request.method = 'PUT'
    request.headers = {
        _DEFAULT_CONTENT_TYPE_HEADER[0]: _DEFAULT_CONTENT_TYPE_HEADER[1],
        _DEFAULT_ACCEPT_HEADER[0]: _DEFAULT_ACCEPT_HEADER[1],
        'If-Match': _to_str(if_match),
    }
    if key_encryption_key:
        entity = _encrypt_entity(entity, key_encryption_key, encryption_resolver)
    request.body = _get_request_body(_convert_entity_to_json(entity))

    return request
Esempio n. 2
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def _get_entity(partition_key, row_key, select, accept):
    '''
    Constructs a get entity request.
    '''
    _validate_not_none('partition_key', partition_key)
    _validate_not_none('row_key', row_key)
    _validate_not_none('accept', accept)
    request = HTTPRequest()
    request.method = 'GET'
    request.headers = {'Accept': _to_str(accept)}
    request.query = {'$select': _to_str(select)}

    return request
Esempio n. 3
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def _delete_entity(partition_key, row_key, if_match):
    '''
     Constructs a delete entity request.
    '''
    _validate_not_none('if_match', if_match)
    _validate_not_none('partition_key', partition_key)
    _validate_not_none('row_key', row_key)
    request = HTTPRequest()
    request.method = 'DELETE'
    request.headers = {
        _DEFAULT_ACCEPT_HEADER[0]: _DEFAULT_ACCEPT_HEADER[1],
        'If-Match': _to_str(if_match)
    }

    return request
Esempio n. 4
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def _merge_entity(entity, if_match, require_encryption=False, key_encryption_key=None):
    '''
    Constructs a merge entity request.
    '''
    _validate_not_none('if_match', if_match)
    _validate_entity(entity)
    _validate_encryption_unsupported(require_encryption, key_encryption_key)

    request = HTTPRequest()
    request.method = 'MERGE'
    request.headers = {
        _DEFAULT_CONTENT_TYPE_HEADER[0]: _DEFAULT_CONTENT_TYPE_HEADER[1],
        _DEFAULT_ACCEPT_HEADER[0]: _DEFAULT_ACCEPT_HEADER[1],
        'If-Match': _to_str(if_match)
    }
    request.body = _get_request_body(_convert_entity_to_json(entity))

    return request
Esempio n. 5
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def _insert_or_replace_entity(entity, require_encryption=False,
                              key_encryption_key=None, encryption_resolver=None):
    '''
    Constructs an insert or replace entity request.
    '''
    _validate_entity(entity, key_encryption_key is not None)
    _validate_encryption_required(require_encryption, key_encryption_key)

    request = HTTPRequest()
    request.method = 'PUT'
    request.headers = {
        _DEFAULT_CONTENT_TYPE_HEADER[0]: _DEFAULT_CONTENT_TYPE_HEADER[1],
        _DEFAULT_ACCEPT_HEADER[0]: _DEFAULT_ACCEPT_HEADER[1],
    }

    if key_encryption_key:
        entity = _encrypt_entity(entity, key_encryption_key, encryption_resolver)
    request.body = _get_request_body(_convert_entity_to_json(entity))

    return request
Esempio n. 6
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def _insert_or_merge_entity(entity, require_encryption=False, key_encryption_key=None):
    '''
    Constructs an insert or merge entity request.
    :param entity:
        The entity to insert. Could be a dict or an entity object.
    :param object key_encryption_key:
        The user-provided key-encryption-key. Must implement the following methods:
        wrap_key(key)--wraps the specified key using an algorithm of the user's choice.
        get_key_wrap_algorithm()--returns the algorithm used to wrap the specified symmetric key.
        get_kid()--returns a string key id for this key-encryption-key.
    '''
    _validate_entity(entity)
    _validate_encryption_unsupported(require_encryption, key_encryption_key)

    request = HTTPRequest()
    request.method = 'MERGE'
    request.headers = {
        _DEFAULT_CONTENT_TYPE_HEADER[0]: _DEFAULT_CONTENT_TYPE_HEADER[1],
        _DEFAULT_ACCEPT_HEADER[0]: _DEFAULT_ACCEPT_HEADER[1],
    }
    request.body = _get_request_body(_convert_entity_to_json(entity))

    return request
    async def append_block(self,
                           container_name,
                           blob_name,
                           block,
                           validate_content=False,
                           maxsize_condition=None,
                           appendpos_condition=None,
                           lease_id=None,
                           if_modified_since=None,
                           if_unmodified_since=None,
                           if_match=None,
                           if_none_match=None,
                           timeout=None):
        '''
        Commits a new block of data to the end of an existing append blob.
        
        :param str container_name:
            Name of existing container.
        :param str blob_name:
            Name of existing blob.
        :param bytes block:
            Content of the block in bytes.
        :param bool validate_content:
            If true, calculates an MD5 hash of the block content. The azure_async
            service checks the hash of the content that has arrived
            with the hash that was sent. This is primarily valuable for detecting 
            bitflips on the wire if using http instead of https as https (the default) 
            will already validate. Note that this MD5 hash is not stored with the 
            blob.
        :param int maxsize_condition:
            Optional conditional header. The max length in bytes permitted for
            the append blob. If the Append Block operation would cause the blob
            to exceed that limit or if the blob size is already greater than the
            value specified in this header, the request will fail with
            MaxBlobSizeConditionNotMet error (HTTP status code 412 - Precondition Failed).
        :param int appendpos_condition:
            Optional conditional header, used only for the Append Block operation.
            A number indicating the byte offset to compare. Append Block will
            succeed only if the append position is equal to this number. If it
            is not, the request will fail with the
            AppendPositionConditionNotMet error
            (HTTP status code 412 - Precondition Failed).
        :param str lease_id:
            Required if the blob has an active lease.
        :param datetime if_modified_since:
            A DateTime value. Azure expects the date value passed in to be UTC.
            If timezone is included, any non-UTC datetimes will be converted to UTC.
            If a date is passed in without timezone info, it is assumed to be UTC. 
            Specify this header to perform the operation only
            if the resource has been modified since the specified time.
        :param datetime if_unmodified_since:
            A DateTime value. Azure expects the date value passed in to be UTC.
            If timezone is included, any non-UTC datetimes will be converted to UTC.
            If a date is passed in without timezone info, it is assumed to be UTC.
            Specify this header to perform the operation only if
            the resource has not been modified since the specified date/time.
        :param str if_match:
            An ETag value, or the wildcard character (*). Specify this header to perform
            the operation only if the resource's ETag matches the value specified.
        :param str if_none_match:
            An ETag value, or the wildcard character (*). Specify this header
            to perform the operation only if the resource's ETag does not match
            the value specified. Specify the wildcard character (*) to perform
            the operation only if the resource does not exist, and fail the
            operation if it does exist.
        :param int timeout:
            The timeout parameter is expressed in seconds.
        :return:
            ETag, last modified, append offset, and committed block count 
            properties for the updated Append Blob
        :rtype: :class:`~azure.azure_async.blob.models.AppendBlockProperties`
        '''
        _validate_not_none('container_name', container_name)
        _validate_not_none('blob_name', blob_name)
        _validate_not_none('block', block)
        _validate_encryption_unsupported(self.require_encryption,
                                         self.key_encryption_key)

        request = HTTPRequest()
        request.method = 'PUT'
        request.host_locations = self._get_host_locations()
        request.path = _get_path(container_name, blob_name)
        request.query = {
            'comp': 'appendblock',
            'timeout': _int_to_str(timeout),
        }
        request.headers = {
            'Accept': '*/*',
            'Accept-Encoding': 'gzip, deflate',
            'Host': f'{self.account_name}.blob.core.windows.net',
            'Content-Type': 'application/octet-stream',
            'x-ms-blob-condition-maxsize': _to_str(maxsize_condition),
            'x-ms-blob-condition-appendpos': _to_str(appendpos_condition),
            'x-ms-lease-id': _to_str(lease_id),
            'If-Modified-Since': _datetime_to_utc_string(if_modified_since),
            'If-Unmodified-Since':
            _datetime_to_utc_string(if_unmodified_since),
            'If-Match': _to_str(if_match),
            'If-None-Match': _to_str(if_none_match)
        }
        request.body = _get_data_bytes_only('block', block)

        if validate_content:
            computed_md5 = _get_content_md5(request.body)
            request.headers['Content-MD5'] = _to_str(computed_md5)

        return await self._perform_request(request, _parse_append_block)
    async def create_blob(self,
                          container_name,
                          blob_name,
                          content_settings=None,
                          metadata=None,
                          lease_id=None,
                          if_modified_since=None,
                          if_unmodified_since=None,
                          if_match=None,
                          if_none_match=None,
                          timeout=None):
        '''
        Creates a blob or overrides an existing blob. Use if_match=* to
        prevent overriding an existing blob. 

        See create_blob_from_* for high level
        functions that handle the creation and upload of large blobs with
        automatic chunking and progress notifications.

        :param str container_name:
            Name of existing container.
        :param str blob_name:
            Name of blob to create or update.
        :param ~azure.azure_async.blob.models.ContentSettings content_settings:
            ContentSettings object used to set blob properties.
        :param metadata:
            Name-value pairs associated with the blob as metadata.
        :type metadata: dict(str, str)
        :param str lease_id:
            Required if the blob has an active lease.
        :param datetime if_modified_since:
            A DateTime value. Azure expects the date value passed in to be UTC.
            If timezone is included, any non-UTC datetimes will be converted to UTC.
            If a date is passed in without timezone info, it is assumed to be UTC. 
            Specify this header to perform the operation only
            if the resource has been modified since the specified time.
        :param datetime if_unmodified_since:
            A DateTime value. Azure expects the date value passed in to be UTC.
            If timezone is included, any non-UTC datetimes will be converted to UTC.
            If a date is passed in without timezone info, it is assumed to be UTC.
            Specify this header to perform the operation only if
            the resource has not been modified since the specified date/time.
        :param str if_match:
            An ETag value, or the wildcard character (*). Specify this header to
            perform the operation only if the resource's ETag matches the value specified.
        :param str if_none_match:
            An ETag value, or the wildcard character (*). Specify this header
            to perform the operation only if the resource's ETag does not match
            the value specified. Specify the wildcard character (*) to perform
            the operation only if the resource does not exist, and fail the
            operation if it does exist.
        :param int timeout:
            The timeout parameter is expressed in seconds.
        :return: ETag and last modified properties for the updated Append Blob
        :rtype: :class:`~azure.azure_async.blob.models.ResourceProperties`
        '''
        _validate_not_none('container_name', container_name)
        _validate_not_none('blob_name', blob_name)
        _validate_encryption_unsupported(self.require_encryption,
                                         self.key_encryption_key)

        request = HTTPRequest()
        request.method = 'PUT'
        request.host_locations = self._get_host_locations()
        request.path = _get_path(container_name, blob_name)
        request.query = {'timeout': _int_to_str(timeout)}
        request.headers = {
            'Accept': '*/*',
            'Accept-Encoding': 'gzip, deflate',
            'Host': f'{self.account_name}.blob.core.windows.net',
            'Content-Type': 'application/octet-stream',
            'x-ms-blob-type': _to_str(self.blob_type),
            'x-ms-lease-id': _to_str(lease_id),
            'If-Modified-Since': _datetime_to_utc_string(if_modified_since),
            'If-Unmodified-Since':
            _datetime_to_utc_string(if_unmodified_since),
            'If-Match': _to_str(if_match),
            'If-None-Match': _to_str(if_none_match)
        }
        _add_metadata_headers(metadata, request)
        if content_settings is not None:
            request.headers.update(content_settings._to_headers())

        return await self._perform_request(request, _parse_base_properties)