Python botocore.exceptions.UnsupportedSignatureVersionError() Examples

The following are 2 code examples of botocore.exceptions.UnsupportedSignatureVersionError(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module botocore.exceptions , or try the search function .
Example #1
Source File: signers.py    From faces with GNU General Public License v2.0 4 votes vote down vote up 
def sign(self, operation_name, request, region_name=None,
             signing_type='standard', expires_in=None):
        """Sign a request before it goes out over the wire.

        :type operation_name: string
        :param operation_name: The name of the current operation, e.g.
                               ``ListBuckets``.
        :type request: AWSRequest
        :param request: The request object to be sent over the wire.

        :type region_name: str
        :param region_name: The region to sign the request for.

        :type signing_type: str
        :param signing_type: The type of signing to perform. This can be one of
            three possible values:

            * 'standard'     - This should be used for most requests.
            * 'presign-url'  - This should be used when pre-signing a request.
            * 'presign-post' - This should be used when pre-signing an S3 post.

        :type expires_in: int
        :param expires_in: The number of seconds the presigned url is valid
            for. This parameter is only valid for signing type 'presign-url'.
        """
        if region_name is None:
            region_name = self._region_name

        signature_version = self._choose_signer(operation_name, signing_type)

        # Allow mutating request before signing
        self._event_emitter.emit(
            'before-sign.{0}.{1}'.format(self._service_name, operation_name),
            request=request, signing_name=self._signing_name,
            region_name=self._region_name,
            signature_version=signature_version, request_signer=self)

        if signature_version != botocore.UNSIGNED:
            kwargs = {
                'signing_name': self._signing_name,
                'region_name': region_name,
                'signature_version': signature_version
            }
            if expires_in is not None:
                kwargs['expires'] = expires_in

            try:
                auth = self.get_auth_instance(**kwargs)
            except UnknownSignatureVersionError as e:
                if signing_type != 'standard':
                    raise UnsupportedSignatureVersionError(
                        signature_version=signature_version)
                else:
                    raise e

            auth.add_auth(request)
Example #2
Source File: signers.py    From faces with GNU General Public License v2.0 4 votes vote down vote up 
def sign(self, operation_name, request, region_name=None,
             signing_type='standard', expires_in=None):
        """Sign a request before it goes out over the wire.

        :type operation_name: string
        :param operation_name: The name of the current operation, e.g.
                               ``ListBuckets``.
        :type request: AWSRequest
        :param request: The request object to be sent over the wire.

        :type region_name: str
        :param region_name: The region to sign the request for.

        :type signing_type: str
        :param signing_type: The type of signing to perform. This can be one of
            three possible values:

            * 'standard'     - This should be used for most requests.
            * 'presign-url'  - This should be used when pre-signing a request.
            * 'presign-post' - This should be used when pre-signing an S3 post.

        :type expires_in: int
        :param expires_in: The number of seconds the presigned url is valid
            for. This parameter is only valid for signing type 'presign-url'.
        """
        if region_name is None:
            region_name = self._region_name

        signature_version = self._choose_signer(operation_name, signing_type)

        # Allow mutating request before signing
        self._event_emitter.emit(
            'before-sign.{0}.{1}'.format(self._service_name, operation_name),
            request=request, signing_name=self._signing_name,
            region_name=self._region_name,
            signature_version=signature_version, request_signer=self)

        if signature_version != botocore.UNSIGNED:
            kwargs = {
                'signing_name': self._signing_name,
                'region_name': region_name,
                'signature_version': signature_version
            }
            if expires_in is not None:
                kwargs['expires'] = expires_in

            try:
                auth = self.get_auth_instance(**kwargs)
            except UnknownSignatureVersionError as e:
                if signing_type != 'standard':
                    raise UnsupportedSignatureVersionError(
                        signature_version=signature_version)
                else:
                    raise e

            auth.add_auth(request)