def _gen_head_range_resp(self, req_range, resp):
"""
Swift doesn't handle Range header for HEAD requests.
So, this method generates HEAD range response from HEAD response.
S3 return HEAD range response, if the value of range satisfies the
conditions which are described in the following document.
- http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35
"""
length = int(resp.headers.get('Content-Length'))
try:
content_range = Range(req_range)
except ValueError:
return resp
ranges = content_range.ranges_for_length(length)
if ranges == []:
raise InvalidRange()
elif ranges:
if len(ranges) == 1:
start, end = ranges[0]
resp.headers['Content-Range'] = \
content_range_header_value(start, end, length)
resp.headers['Content-Length'] = (end - start)
resp.status = HTTP_PARTIAL_CONTENT
return resp
else:
# TODO: It is necessary to confirm whether need to respond to
# multi-part response.(e.g. bytes=0-10,20-30)
pass
return resp
def _gen_head_range_resp(self, req_range, resp):
"""
Swift doesn't handle Range header for HEAD requests.
So, this mothod generates HEAD range response from HEAD response.
S3 return HEAD range response, if the value of range satisfies the
conditions which are described in the following document.
- http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35
"""
length = long(resp.headers.get('Content-Length'))
try:
content_range = Range(req_range)
except ValueError:
return resp
ranges = content_range.ranges_for_length(length)
if ranges == []:
raise InvalidRange()
elif ranges:
if len(ranges) == 1:
start, end = ranges[0]
resp.headers['Content-Range'] = \
content_range_header_value(start, end, length)
resp.headers['Content-Length'] = (end - start)
resp.status = HTTP_PARTIAL_CONTENT
return resp
else:
# TODO: It is necessary to confirm whether need to respond to
# multi-part response.(e.g. bytes=0-10,20-30)
pass
return resp
def PUT(self, req):
"""
Handles Upload Part and Upload Part Copy.
"""
if 'uploadId' not in req.params:
raise InvalidArgument('ResourceType', 'partNumber',
'Unexpected query string parameter')
part_number = self.parse_part_number(req)
upload_id = req.params['uploadId']
_check_upload_info(req, self.app, upload_id)
req.container_name += MULTIUPLOAD_SUFFIX
req.object_name = '%s/%s/%d' % (req.object_name, upload_id,
part_number)
req_timestamp = S3Timestamp.now()
req.headers['X-Timestamp'] = req_timestamp.internal
source_resp = req.check_copy_source(self.app)
if 'X-Amz-Copy-Source' in req.headers and \
'X-Amz-Copy-Source-Range' in req.headers:
rng = req.headers['X-Amz-Copy-Source-Range']
header_valid = True
try:
rng_obj = Range(rng)
if len(rng_obj.ranges) != 1:
header_valid = False
except ValueError:
header_valid = False
if not header_valid:
err_msg = ('The x-amz-copy-source-range value must be of the '
'form bytes=first-last where first and last are '
'the zero-based offsets of the first and last '
'bytes to copy')
raise InvalidArgument('x-amz-source-range', rng, err_msg)
source_size = int(source_resp.headers['Content-Length'])
if not rng_obj.ranges_for_length(source_size):
err_msg = ('Range specified is not valid for source object '
'of size: %s' % source_size)
raise InvalidArgument('x-amz-source-range', rng, err_msg)
req.headers['Range'] = rng
del req.headers['X-Amz-Copy-Source-Range']
resp = req.get_response(self.app)
if 'X-Amz-Copy-Source' in req.headers:
resp.append_copy_resp_body(req.controller_name,
req_timestamp.s3xmlformat)
resp.status = 200
return resp
def PUT(self, req):
"""
Handles Upload Part and Upload Part Copy.
"""
if 'uploadId' not in req.params:
raise InvalidArgument('ResourceType', 'partNumber',
'Unexpected query string parameter')
try:
part_number = int(req.params['partNumber'])
if part_number < 1 or self.conf.max_upload_part_num < part_number:
raise Exception()
except Exception:
err_msg = 'Part number must be an integer between 1 and %d,' \
' inclusive' % self.conf.max_upload_part_num
raise InvalidArgument('partNumber', req.params['partNumber'],
err_msg)
upload_id = req.params['uploadId']
_get_upload_info(req, self.app, upload_id)
req.container_name += MULTIUPLOAD_SUFFIX
req.object_name = '%s/%s/%d' % (req.object_name, upload_id,
part_number)
req_timestamp = S3Timestamp.now()
req.headers['X-Timestamp'] = req_timestamp.internal
source_resp = req.check_copy_source(self.app)
if 'X-Amz-Copy-Source' in req.headers and \
'X-Amz-Copy-Source-Range' in req.headers:
rng = req.headers['X-Amz-Copy-Source-Range']
header_valid = True
try:
rng_obj = Range(rng)
if len(rng_obj.ranges) != 1:
header_valid = False
except ValueError:
header_valid = False
if not header_valid:
err_msg = ('The x-amz-copy-source-range value must be of the '
'form bytes=first-last where first and last are '
'the zero-based offsets of the first and last '
'bytes to copy')
raise InvalidArgument('x-amz-source-range', rng, err_msg)
source_size = int(source_resp.headers['Content-Length'])
if not rng_obj.ranges_for_length(source_size):
err_msg = ('Range specified is not valid for source object '
'of size: %s' % source_size)
raise InvalidArgument('x-amz-source-range', rng, err_msg)
req.headers['Range'] = rng
del req.headers['X-Amz-Copy-Source-Range']
if 'X-Amz-Copy-Source' in req.headers:
# Clear some problematic headers that might be on the source
req.headers.update({
sysmeta_header('object', 'etag'): '',
'X-Object-Sysmeta-Swift3-Etag': '', # for legacy data
'X-Object-Sysmeta-Slo-Etag': '',
'X-Object-Sysmeta-Slo-Size': '',
get_container_update_override_key('etag'): '',
})
resp = req.get_response(self.app)
if 'X-Amz-Copy-Source' in req.headers:
resp.append_copy_resp_body(req.controller_name,
req_timestamp.s3xmlformat)
resp.status = 200
return resp
def PUT(self, req):
"""
Handles Upload Part and Upload Part Copy.
"""
if 'uploadId' not in req.params:
raise InvalidArgument('ResourceType', 'partNumber',
'Unexpected query string parameter')
try:
part_number = int(req.params['partNumber'])
if part_number < 1 or CONF.max_upload_part_num < part_number:
raise Exception()
except Exception:
err_msg = 'Part number must be an integer between 1 and %d,' \
' inclusive' % CONF.max_upload_part_num
raise InvalidArgument('partNumber', req.params['partNumber'],
err_msg)
data = req.body
upload_id = req.params['uploadId']
_check_upload_info(req, self.app, upload_id)
req.container_name += MULTIUPLOAD_SUFFIX
req.object_name = '%s/%s/%d' % (req.object_name, upload_id,
part_number)
req_timestamp = OssTimestamp.now()
req.headers['X-Timestamp'] = req_timestamp.internal
source_resp = req.check_copy_source(self.app)
if 'x-oss-copy-source' in req.headers and \
'x-oss-copy-source-range' in req.headers:
rng = req.headers['x-oss-copy-source-range']
header_valid = True
try:
rng_obj = Range(rng)
if len(rng_obj.ranges) != 1:
header_valid = False
except ValueError:
header_valid = False
if not header_valid:
err_msg = ('The x-oss-copy-source-range value must be of the '
'form bytes=first-last where first and last are '
'the zero-based offsets of the first and last '
'bytes to copy')
raise InvalidArgument('x-oss-source-range', rng, err_msg)
source_size = int(source_resp.headers['Content-Length'])
if not rng_obj.ranges_for_length(source_size):
err_msg = ('Range specified is not valid for source object '
'of size: %s' % source_size)
raise InvalidArgument('x-oss-source-range', rng, err_msg)
req.headers['range'] = rng
del req.headers['x-oss-copy-source-range']
resp = req.get_response(self.app)
do_crc64 = crcmod.mkCrcFun(0x142F0E1EBA9EA3693L, initCrc=0L, xorOut=0xffffffffffffffffL, rev=True)
if 'x-oss-copy-source' in req.headers:
resp.append_copy_resp_body(req.controller_name,
req_timestamp.ossxmlformat)
resp.status = 200
resp.headers['x-oss-hash-crc64ecma']=do_crc64(data)
return resp
def PUT(self, req):
"""
Handles Upload Part and Upload Part Copy.
"""
if 'uploadId' not in req.params:
raise InvalidArgument('ResourceType', 'partNumber',
'Unexpected query string parameter')
try:
part_number = int(req.params['partNumber'])
if part_number < 1 or CONF.max_upload_part_num < part_number:
raise Exception()
except Exception:
err_msg = 'Part number must be an integer between 1 and %d,' \
' inclusive' % CONF.max_upload_part_num
raise InvalidArgument('partNumber', req.params['partNumber'],
err_msg)
upload_id = req.params['uploadId']
_check_upload_info(req, self.app, upload_id)
req.container_name += MULTIUPLOAD_SUFFIX
req.object_name = '%s/%s/%d' % (req.object_name, upload_id,
part_number)
req_timestamp = S3Timestamp.now()
req.headers['X-Timestamp'] = req_timestamp.internal
source_resp = req.check_copy_source(self.app)
if 'X-Amz-Copy-Source' in req.headers and \
'X-Amz-Copy-Source-Range' in req.headers:
rng = req.headers['X-Amz-Copy-Source-Range']
header_valid = True
try:
rng_obj = Range(rng)
if len(rng_obj.ranges) != 1:
header_valid = False
except ValueError:
header_valid = False
if not header_valid:
err_msg = ('The x-amz-copy-source-range value must be of the '
'form bytes=first-last where first and last are '
'the zero-based offsets of the first and last '
'bytes to copy')
raise InvalidArgument('x-amz-source-range', rng, err_msg)
source_size = int(source_resp.headers['Content-Length'])
if not rng_obj.ranges_for_length(source_size):
err_msg = ('Range specified is not valid for source object '
'of size: %s' % source_size)
raise InvalidArgument('x-amz-source-range', rng, err_msg)
req.headers['Range'] = rng
del req.headers['X-Amz-Copy-Source-Range']
resp = req.get_response(self.app)
if 'X-Amz-Copy-Source' in req.headers:
resp.append_copy_resp_body(req.controller_name,
req_timestamp.s3xmlformat)
resp.status = 200
return resp
