root / kamaki / clients / pithos / __init__.py @ 70b5b9dd
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# Copyright 2011-2014 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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# 1. Redistributions of source code must retain the above
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# copyright notice, this list of conditions and the following
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# disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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from threading import enumerate as activethreads |
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from os import fstat |
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from hashlib import new as newhashlib |
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from time import time |
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from StringIO import StringIO |
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from binascii import hexlify |
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from kamaki.clients import SilentEvent, sendlog |
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from kamaki.clients.pithos.rest_api import PithosRestClient |
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from kamaki.clients.storage import ClientError |
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from kamaki.clients.utils import path4url, filter_in, readall |
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def _pithos_hash(block, blockhash): |
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h = newhashlib(blockhash) |
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h.update(block.rstrip('\x00'))
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return h.hexdigest()
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def _range_up(start, end, max_value, a_range): |
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"""
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:param start: (int) the window bottom
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:param end: (int) the window top
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:param max_value: (int) maximum accepted value
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:param a_range: (str) a range string in the form X[,X'[,X''[...]]]
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where X: x|x-y|-x where x < y and x, y natural numbers
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:returns: (str) a range string cut-off for the start-end range
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an empty response means this window is out of range
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"""
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assert start >= 0, '_range_up called w. start(%s) < 0' % start |
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assert end >= start, '_range_up called w. end(%s) < start(%s)' % ( |
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end, start) |
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assert end <= max_value, '_range_up called w. max_value(%s) < end(%s)' % ( |
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max_value, end) |
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if not a_range: |
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return '%s-%s' % (start, end) |
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selected = [] |
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for some_range in a_range.split(','): |
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v0, sep, v1 = some_range.partition('-')
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if v0:
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v0 = int(v0)
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if sep:
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v1 = int(v1)
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if v1 < start or v0 > end or v1 < v0: |
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continue
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v0 = v0 if v0 > start else start |
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v1 = v1 if v1 < end else end |
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selected.append('%s-%s' % (v0, v1))
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elif v0 < start:
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continue
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else:
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v1 = v0 if v0 <= end else end |
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selected.append('%s-%s' % (start, v1))
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else:
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v1 = int(v1)
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if max_value - v1 > end:
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continue
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v0 = (max_value - v1) if max_value - v1 > start else start |
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selected.append('%s-%s' % (v0, end))
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return ','.join(selected) |
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class PithosClient(PithosRestClient): |
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"""Synnefo Pithos+ API client"""
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def __init__(self, base_url, token, account=None, container=None): |
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super(PithosClient, self).__init__(base_url, token, account, container) |
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def create_container( |
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self,
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container=None, sizelimit=None, versioning=None, metadata=None, |
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project=None, **kwargs):
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"""
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:param container: (str) if not given, self.container is used instead
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:param sizelimit: (int) container total size limit in bytes
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:param versioning: (str) can be auto or whatever supported by server
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:param metadata: (dict) Custom user-defined metadata of the form
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{ 'name1': 'value1', 'name2': 'value2', ... }
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:returns: (dict) response headers
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"""
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cnt_back_up = self.container
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try:
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self.container = container or cnt_back_up |
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r = self.container_put(
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quota=sizelimit, versioning=versioning, metadata=metadata, |
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project=project, **kwargs) |
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return r.headers
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finally:
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self.container = cnt_back_up
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def purge_container(self, container=None): |
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"""Delete an empty container and destroy associated blocks"""
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cnt_back_up = self.container
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try:
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self.container = container or cnt_back_up |
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r = self.container_delete(until=unicode(time())) |
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finally:
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self.container = cnt_back_up
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return r.headers
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def upload_object_unchunked( |
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self, obj, f,
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withHashFile=False,
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size=None,
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etag=None,
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content_encoding=None,
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content_disposition=None,
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content_type=None,
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sharing=None,
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public=None):
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"""
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:param obj: (str) remote object path
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:param f: open file descriptor
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:param withHashFile: (bool)
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:param size: (int) size of data to upload
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:param etag: (str)
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:param content_encoding: (str)
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:param content_disposition: (str)
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:param content_type: (str)
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:param sharing: {'read':[user and/or grp names],
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'write':[usr and/or grp names]}
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:param public: (bool)
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:returns: (dict) created object metadata
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"""
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self._assert_container()
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if withHashFile:
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data = f.read() |
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try:
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import json |
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data = json.dumps(json.loads(data)) |
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except ValueError: |
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raise ClientError('"%s" is not json-formated' % f.name, 1) |
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except SyntaxError: |
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msg = '"%s" is not a valid hashmap file' % f.name
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raise ClientError(msg, 1) |
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f = StringIO(data) |
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else:
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data = readall(f, size) if size else f.read() |
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r = self.object_put(
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obj, |
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data=data, |
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etag=etag, |
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content_encoding=content_encoding, |
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content_disposition=content_disposition, |
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content_type=content_type, |
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permissions=sharing, |
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public=public, |
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success=201)
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return r.headers
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def create_object_by_manifestation( |
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self, obj,
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etag=None,
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content_encoding=None,
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content_disposition=None,
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content_type=None,
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sharing=None,
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public=None):
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"""
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:param obj: (str) remote object path
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:param etag: (str)
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:param content_encoding: (str)
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:param content_disposition: (str)
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:param content_type: (str)
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:param sharing: {'read':[user and/or grp names],
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'write':[usr and/or grp names]}
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:param public: (bool)
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:returns: (dict) created object metadata
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"""
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self._assert_container()
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r = self.object_put(
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obj, |
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content_length=0,
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etag=etag, |
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content_encoding=content_encoding, |
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content_disposition=content_disposition, |
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content_type=content_type, |
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permissions=sharing, |
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public=public, |
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manifest='%s/%s' % (self.container, obj)) |
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return r.headers
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# upload_* auxiliary methods
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def _put_block_async(self, data, hash): |
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event = SilentEvent(method=self._put_block, data=data, hash=hash) |
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event.start() |
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return event
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def _put_block(self, data, hash): |
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r = self.container_post(
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update=True,
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content_type='application/octet-stream',
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content_length=len(data),
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data=data, |
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format='json')
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assert r.json[0] == hash, 'Local hash does not match server' |
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def _get_file_block_info(self, fileobj, size=None, cache=None): |
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"""
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:param fileobj: (file descriptor) source
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:param size: (int) size of data to upload from source
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:param cache: (dict) if provided, cache container info response to
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avoid redundant calls
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"""
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if isinstance(cache, dict): |
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try:
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meta = cache[self.container]
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except KeyError: |
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meta = self.get_container_info()
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cache[self.container] = meta
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else:
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meta = self.get_container_info()
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blocksize = int(meta['x-container-block-size']) |
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blockhash = meta['x-container-block-hash']
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size = size if size is not None else fstat(fileobj.fileno()).st_size |
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nblocks = 1 + (size - 1) // blocksize |
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return (blocksize, blockhash, size, nblocks)
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def _create_object_or_get_missing_hashes( |
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self, obj, json,
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size=None,
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format='json',
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hashmap=True,
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content_type=None,
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if_etag_match=None,
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if_etag_not_match=None,
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content_encoding=None,
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content_disposition=None,
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permissions=None,
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public=None,
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success=(201, 409)): |
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r = self.object_put(
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obj, |
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format='json',
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hashmap=True,
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content_type=content_type, |
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json=json, |
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if_etag_match=if_etag_match, |
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if_etag_not_match=if_etag_not_match, |
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content_encoding=content_encoding, |
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content_disposition=content_disposition, |
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permissions=permissions, |
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public=public, |
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success=success) |
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return (None if r.status_code == 201 else r.json), r.headers |
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def _calculate_blocks_for_upload( |
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self, blocksize, blockhash, size, nblocks, hashes, hmap, fileobj,
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hash_cb=None):
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offset = 0
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if hash_cb:
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hash_gen = hash_cb(nblocks) |
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hash_gen.next() |
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for i in xrange(nblocks): |
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block = readall(fileobj, min(blocksize, size - offset))
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bytes = len(block)
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if bytes <= 0: |
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break
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hash = _pithos_hash(block, blockhash) |
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hashes.append(hash)
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hmap[hash] = (offset, bytes) |
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offset += bytes
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if hash_cb:
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hash_gen.next() |
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msg = ('Failed to calculate uploading blocks: '
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'read bytes(%s) != requested size (%s)' % (offset, size))
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assert offset == size, msg
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def _upload_missing_blocks(self, missing, hmap, fileobj, upload_gen=None): |
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"""upload missing blocks asynchronously"""
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self._init_thread_limit()
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flying = [] |
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failures = [] |
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for hash in missing: |
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offset, bytes = hmap[hash]
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fileobj.seek(offset) |
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data = readall(fileobj, bytes)
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r = self._put_block_async(data, hash) |
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flying.append(r) |
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unfinished = self._watch_thread_limit(flying)
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for thread in set(flying).difference(unfinished): |
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if thread.exception:
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failures.append(thread) |
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if isinstance( |
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thread.exception, |
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ClientError) and thread.exception.status == 502: |
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self.POOLSIZE = self._thread_limit |
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elif thread.isAlive():
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flying.append(thread) |
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elif upload_gen:
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try:
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upload_gen.next() |
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except:
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pass
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flying = unfinished |
362 |
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for thread in flying: |
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thread.join() |
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if thread.exception:
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failures.append(thread) |
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elif upload_gen:
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try:
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upload_gen.next() |
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except:
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pass
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return [failure.kwargs['hash'] for failure in failures] |
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|
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def upload_object( |
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self, obj, f,
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size=None,
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hash_cb=None,
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upload_cb=None,
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etag=None,
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if_etag_match=None,
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if_not_exist=None,
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content_encoding=None,
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content_disposition=None,
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content_type=None,
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sharing=None,
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public=None,
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container_info_cache=None):
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"""Upload an object using multiple connections (threads)
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|
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:param obj: (str) remote object path
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392 |
|
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:param f: open file descriptor (rb)
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394 |
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:param hash_cb: optional progress.bar object for calculating hashes
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396 |
|
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:param upload_cb: optional progress.bar object for uploading
|
398 |
|
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:param etag: (str)
|
400 |
|
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:param if_etag_match: (str) Push that value to if-match header at file
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creation
|
403 |
|
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:param if_not_exist: (bool) If true, the file will be uploaded ONLY if
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it does not exist remotely, otherwise the operation will fail.
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Involves the case of an object with the same path is created while
|
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the object is being uploaded.
|
408 |
|
409 |
:param content_encoding: (str)
|
410 |
|
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:param content_disposition: (str)
|
412 |
|
413 |
:param content_type: (str)
|
414 |
|
415 |
:param sharing: {'read':[user and/or grp names],
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'write':[usr and/or grp names]}
|
417 |
|
418 |
:param public: (bool)
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419 |
|
420 |
:param container_info_cache: (dict) if given, avoid redundant calls to
|
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server for container info (block size and hash information)
|
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"""
|
423 |
self._assert_container()
|
424 |
|
425 |
block_info = ( |
426 |
blocksize, blockhash, size, nblocks) = self._get_file_block_info(
|
427 |
f, size, container_info_cache) |
428 |
(hashes, hmap, offset) = ([], {}, 0)
|
429 |
content_type = content_type or 'application/octet-stream' |
430 |
|
431 |
self._calculate_blocks_for_upload(
|
432 |
*block_info, |
433 |
hashes=hashes, |
434 |
hmap=hmap, |
435 |
fileobj=f, |
436 |
hash_cb=hash_cb) |
437 |
|
438 |
hashmap = dict(bytes=size, hashes=hashes)
|
439 |
missing, obj_headers = self._create_object_or_get_missing_hashes(
|
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obj, hashmap, |
441 |
content_type=content_type, |
442 |
size=size, |
443 |
if_etag_match=if_etag_match, |
444 |
if_etag_not_match='*' if if_not_exist else None, |
445 |
content_encoding=content_encoding, |
446 |
content_disposition=content_disposition, |
447 |
permissions=sharing, |
448 |
public=public) |
449 |
|
450 |
if missing is None: |
451 |
return obj_headers
|
452 |
|
453 |
if upload_cb:
|
454 |
upload_gen = upload_cb(len(missing))
|
455 |
for i in range(len(missing), len(hashmap['hashes']) + 1): |
456 |
try:
|
457 |
upload_gen.next() |
458 |
except:
|
459 |
upload_gen = None
|
460 |
else:
|
461 |
upload_gen = None
|
462 |
|
463 |
retries = 7
|
464 |
try:
|
465 |
while retries:
|
466 |
sendlog.info('%s blocks missing' % len(missing)) |
467 |
num_of_blocks = len(missing)
|
468 |
missing = self._upload_missing_blocks(
|
469 |
missing, |
470 |
hmap, |
471 |
f, |
472 |
upload_gen) |
473 |
if missing:
|
474 |
if num_of_blocks == len(missing): |
475 |
retries -= 1
|
476 |
else:
|
477 |
num_of_blocks = len(missing)
|
478 |
else:
|
479 |
break
|
480 |
if missing:
|
481 |
try:
|
482 |
details = ['%s' % thread.exception for thread in missing] |
483 |
except Exception: |
484 |
details = ['Also, failed to read thread exceptions']
|
485 |
raise ClientError(
|
486 |
'%s blocks failed to upload' % len(missing), |
487 |
details=details) |
488 |
except KeyboardInterrupt: |
489 |
sendlog.info('- - - wait for threads to finish')
|
490 |
for thread in activethreads(): |
491 |
thread.join() |
492 |
raise
|
493 |
|
494 |
r = self.object_put(
|
495 |
obj, |
496 |
format='json',
|
497 |
hashmap=True,
|
498 |
content_type=content_type, |
499 |
content_encoding=content_encoding, |
500 |
if_etag_match=if_etag_match, |
501 |
if_etag_not_match='*' if if_not_exist else None, |
502 |
etag=etag, |
503 |
json=hashmap, |
504 |
permissions=sharing, |
505 |
public=public, |
506 |
success=201)
|
507 |
return r.headers
|
508 |
|
509 |
def upload_from_string( |
510 |
self, obj, input_str,
|
511 |
hash_cb=None,
|
512 |
upload_cb=None,
|
513 |
etag=None,
|
514 |
if_etag_match=None,
|
515 |
if_not_exist=None,
|
516 |
content_encoding=None,
|
517 |
content_disposition=None,
|
518 |
content_type=None,
|
519 |
sharing=None,
|
520 |
public=None,
|
521 |
container_info_cache=None):
|
522 |
"""Upload an object using multiple connections (threads)
|
523 |
|
524 |
:param obj: (str) remote object path
|
525 |
|
526 |
:param input_str: (str) upload content
|
527 |
|
528 |
:param hash_cb: optional progress.bar object for calculating hashes
|
529 |
|
530 |
:param upload_cb: optional progress.bar object for uploading
|
531 |
|
532 |
:param etag: (str)
|
533 |
|
534 |
:param if_etag_match: (str) Push that value to if-match header at file
|
535 |
creation
|
536 |
|
537 |
:param if_not_exist: (bool) If true, the file will be uploaded ONLY if
|
538 |
it does not exist remotely, otherwise the operation will fail.
|
539 |
Involves the case of an object with the same path is created while
|
540 |
the object is being uploaded.
|
541 |
|
542 |
:param content_encoding: (str)
|
543 |
|
544 |
:param content_disposition: (str)
|
545 |
|
546 |
:param content_type: (str)
|
547 |
|
548 |
:param sharing: {'read':[user and/or grp names],
|
549 |
'write':[usr and/or grp names]}
|
550 |
|
551 |
:param public: (bool)
|
552 |
|
553 |
:param container_info_cache: (dict) if given, avoid redundant calls to
|
554 |
server for container info (block size and hash information)
|
555 |
"""
|
556 |
self._assert_container()
|
557 |
|
558 |
blocksize, blockhash, size, nblocks = self._get_file_block_info(
|
559 |
fileobj=None, size=len(input_str), cache=container_info_cache) |
560 |
(hashes, hmap, offset) = ([], {}, 0)
|
561 |
if not content_type: |
562 |
content_type = 'application/octet-stream'
|
563 |
|
564 |
hashes = [] |
565 |
hmap = {} |
566 |
for blockid in range(nblocks): |
567 |
start = blockid * blocksize |
568 |
block = input_str[start: (start + blocksize)] |
569 |
hashes.append(_pithos_hash(block, blockhash)) |
570 |
hmap[hashes[blockid]] = (start, block) |
571 |
|
572 |
hashmap = dict(bytes=size, hashes=hashes)
|
573 |
missing, obj_headers = self._create_object_or_get_missing_hashes(
|
574 |
obj, hashmap, |
575 |
content_type=content_type, |
576 |
size=size, |
577 |
if_etag_match=if_etag_match, |
578 |
if_etag_not_match='*' if if_not_exist else None, |
579 |
content_encoding=content_encoding, |
580 |
content_disposition=content_disposition, |
581 |
permissions=sharing, |
582 |
public=public) |
583 |
if missing is None: |
584 |
return obj_headers
|
585 |
num_of_missing = len(missing)
|
586 |
|
587 |
if upload_cb:
|
588 |
self.progress_bar_gen = upload_cb(nblocks)
|
589 |
for i in range(nblocks + 1 - num_of_missing): |
590 |
self._cb_next()
|
591 |
|
592 |
tries = 7
|
593 |
old_failures = 0
|
594 |
try:
|
595 |
while tries and missing: |
596 |
flying = [] |
597 |
failures = [] |
598 |
for hash in missing: |
599 |
offset, block = hmap[hash]
|
600 |
bird = self._put_block_async(block, hash) |
601 |
flying.append(bird) |
602 |
unfinished = self._watch_thread_limit(flying)
|
603 |
for thread in set(flying).difference(unfinished): |
604 |
if thread.exception:
|
605 |
failures.append(thread.kwargs['hash'])
|
606 |
if thread.isAlive():
|
607 |
flying.append(thread) |
608 |
else:
|
609 |
self._cb_next()
|
610 |
flying = unfinished |
611 |
for thread in flying: |
612 |
thread.join() |
613 |
if thread.exception:
|
614 |
failures.append(thread.kwargs['hash'])
|
615 |
self._cb_next()
|
616 |
missing = failures |
617 |
if missing and len(missing) == old_failures: |
618 |
tries -= 1
|
619 |
old_failures = len(missing)
|
620 |
if missing:
|
621 |
raise ClientError('%s blocks failed to upload' % len(missing)) |
622 |
except KeyboardInterrupt: |
623 |
sendlog.info('- - - wait for threads to finish')
|
624 |
for thread in activethreads(): |
625 |
thread.join() |
626 |
raise
|
627 |
self._cb_next()
|
628 |
|
629 |
r = self.object_put(
|
630 |
obj, |
631 |
format='json',
|
632 |
hashmap=True,
|
633 |
content_type=content_type, |
634 |
content_encoding=content_encoding, |
635 |
if_etag_match=if_etag_match, |
636 |
if_etag_not_match='*' if if_not_exist else None, |
637 |
etag=etag, |
638 |
json=hashmap, |
639 |
permissions=sharing, |
640 |
public=public, |
641 |
success=201)
|
642 |
return r.headers
|
643 |
|
644 |
# download_* auxiliary methods
|
645 |
def _get_remote_blocks_info(self, obj, **restargs): |
646 |
#retrieve object hashmap
|
647 |
myrange = restargs.pop('data_range', None) |
648 |
hashmap = self.get_object_hashmap(obj, **restargs)
|
649 |
restargs['data_range'] = myrange
|
650 |
blocksize = int(hashmap['block_size']) |
651 |
blockhash = hashmap['block_hash']
|
652 |
total_size = hashmap['bytes']
|
653 |
#assert total_size/blocksize + 1 == len(hashmap['hashes'])
|
654 |
map_dict = {} |
655 |
for i, h in enumerate(hashmap['hashes']): |
656 |
# map_dict[h] = i CHAGE
|
657 |
if h in map_dict: |
658 |
map_dict[h].append(i) |
659 |
else:
|
660 |
map_dict[h] = [i] |
661 |
return (blocksize, blockhash, total_size, hashmap['hashes'], map_dict) |
662 |
|
663 |
def _dump_blocks_sync( |
664 |
self, obj, remote_hashes, blocksize, total_size, dst, crange,
|
665 |
**args): |
666 |
if not total_size: |
667 |
return
|
668 |
for blockid, blockhash in enumerate(remote_hashes): |
669 |
if blockhash:
|
670 |
start = blocksize * blockid |
671 |
is_last = start + blocksize > total_size |
672 |
end = (total_size - 1) if is_last else (start + blocksize - 1) |
673 |
data_range = _range_up(start, end, total_size, crange) |
674 |
if not data_range: |
675 |
self._cb_next()
|
676 |
continue
|
677 |
args['data_range'] = 'bytes=%s' % data_range |
678 |
r = self.object_get(obj, success=(200, 206), **args) |
679 |
self._cb_next()
|
680 |
dst.write(r.content) |
681 |
dst.flush() |
682 |
|
683 |
def _get_block_async(self, obj, **args): |
684 |
event = SilentEvent(self.object_get, obj, success=(200, 206), **args) |
685 |
event.start() |
686 |
return event
|
687 |
|
688 |
def _hash_from_file(self, fp, start, size, blockhash): |
689 |
fp.seek(start) |
690 |
block = readall(fp, size) |
691 |
h = newhashlib(blockhash) |
692 |
h.update(block.strip('\x00'))
|
693 |
return hexlify(h.digest())
|
694 |
|
695 |
def _thread2file(self, flying, blockids, local_file, offset=0, **restargs): |
696 |
"""write the results of a greenleted rest call to a file
|
697 |
|
698 |
:param offset: the offset of the file up to blocksize
|
699 |
- e.g. if the range is 10-100, all blocks will be written to
|
700 |
normal_position - 10
|
701 |
"""
|
702 |
for key, g in flying.items(): |
703 |
if g.isAlive():
|
704 |
continue
|
705 |
if g.exception:
|
706 |
raise g.exception
|
707 |
block = g.value.content |
708 |
for block_start in blockids[key]: |
709 |
local_file.seek(block_start + offset) |
710 |
local_file.write(block) |
711 |
self._cb_next()
|
712 |
flying.pop(key) |
713 |
blockids.pop(key) |
714 |
local_file.flush() |
715 |
|
716 |
def _dump_blocks_async( |
717 |
self, obj, remote_hashes, blocksize, total_size, local_file,
|
718 |
blockhash=None, resume=False, filerange=None, **restargs): |
719 |
file_size = fstat(local_file.fileno()).st_size if resume else 0 |
720 |
flying = dict()
|
721 |
blockid_dict = dict()
|
722 |
offset = 0
|
723 |
|
724 |
self._init_thread_limit()
|
725 |
for block_hash, blockids in remote_hashes.items(): |
726 |
blockids = [blk * blocksize for blk in blockids] |
727 |
unsaved = [blk for blk in blockids if not ( |
728 |
blk < file_size and block_hash == self._hash_from_file( |
729 |
local_file, blk, blocksize, blockhash))] |
730 |
self._cb_next(len(blockids) - len(unsaved)) |
731 |
if unsaved:
|
732 |
key = unsaved[0]
|
733 |
self._watch_thread_limit(flying.values())
|
734 |
self._thread2file(
|
735 |
flying, blockid_dict, local_file, offset, |
736 |
**restargs) |
737 |
end = total_size - 1 if ( |
738 |
key + blocksize > total_size) else key + blocksize - 1 |
739 |
if end < key:
|
740 |
self._cb_next()
|
741 |
continue
|
742 |
data_range = _range_up(key, end, total_size, filerange) |
743 |
if not data_range: |
744 |
self._cb_next()
|
745 |
continue
|
746 |
restargs[ |
747 |
'async_headers'] = {'Range': 'bytes=%s' % data_range} |
748 |
flying[key] = self._get_block_async(obj, **restargs)
|
749 |
blockid_dict[key] = unsaved |
750 |
|
751 |
for thread in flying.values(): |
752 |
thread.join() |
753 |
self._thread2file(flying, blockid_dict, local_file, offset, **restargs)
|
754 |
|
755 |
def download_object( |
756 |
self, obj, dst,
|
757 |
download_cb=None,
|
758 |
version=None,
|
759 |
resume=False,
|
760 |
range_str=None,
|
761 |
if_match=None,
|
762 |
if_none_match=None,
|
763 |
if_modified_since=None,
|
764 |
if_unmodified_since=None):
|
765 |
"""Download an object (multiple connections, random blocks)
|
766 |
|
767 |
:param obj: (str) remote object path
|
768 |
|
769 |
:param dst: open file descriptor (wb+)
|
770 |
|
771 |
:param download_cb: optional progress.bar object for downloading
|
772 |
|
773 |
:param version: (str) file version
|
774 |
|
775 |
:param resume: (bool) if set, preserve already downloaded file parts
|
776 |
|
777 |
:param range_str: (str) from, to are file positions (int) in bytes
|
778 |
|
779 |
:param if_match: (str)
|
780 |
|
781 |
:param if_none_match: (str)
|
782 |
|
783 |
:param if_modified_since: (str) formated date
|
784 |
|
785 |
:param if_unmodified_since: (str) formated date"""
|
786 |
restargs = dict(
|
787 |
version=version, |
788 |
data_range=None if range_str is None else 'bytes=%s' % range_str, |
789 |
if_match=if_match, |
790 |
if_none_match=if_none_match, |
791 |
if_modified_since=if_modified_since, |
792 |
if_unmodified_since=if_unmodified_since) |
793 |
|
794 |
( |
795 |
blocksize, |
796 |
blockhash, |
797 |
total_size, |
798 |
hash_list, |
799 |
remote_hashes) = self._get_remote_blocks_info(obj, **restargs)
|
800 |
assert total_size >= 0 |
801 |
|
802 |
if download_cb:
|
803 |
self.progress_bar_gen = download_cb(len(hash_list)) |
804 |
self._cb_next()
|
805 |
|
806 |
if dst.isatty():
|
807 |
self._dump_blocks_sync(
|
808 |
obj, |
809 |
hash_list, |
810 |
blocksize, |
811 |
total_size, |
812 |
dst, |
813 |
range_str, |
814 |
**restargs) |
815 |
else:
|
816 |
self._dump_blocks_async(
|
817 |
obj, |
818 |
remote_hashes, |
819 |
blocksize, |
820 |
total_size, |
821 |
dst, |
822 |
blockhash, |
823 |
resume, |
824 |
range_str, |
825 |
**restargs) |
826 |
if not range_str: |
827 |
dst.truncate(total_size) |
828 |
|
829 |
self._complete_cb()
|
830 |
|
831 |
def download_to_string( |
832 |
self, obj,
|
833 |
download_cb=None,
|
834 |
version=None,
|
835 |
range_str=None,
|
836 |
if_match=None,
|
837 |
if_none_match=None,
|
838 |
if_modified_since=None,
|
839 |
if_unmodified_since=None):
|
840 |
"""Download an object to a string (multiple connections). This method
|
841 |
uses threads for http requests, but stores all content in memory.
|
842 |
|
843 |
:param obj: (str) remote object path
|
844 |
|
845 |
:param download_cb: optional progress.bar object for downloading
|
846 |
|
847 |
:param version: (str) file version
|
848 |
|
849 |
:param range_str: (str) from, to are file positions (int) in bytes
|
850 |
|
851 |
:param if_match: (str)
|
852 |
|
853 |
:param if_none_match: (str)
|
854 |
|
855 |
:param if_modified_since: (str) formated date
|
856 |
|
857 |
:param if_unmodified_since: (str) formated date
|
858 |
|
859 |
:returns: (str) the whole object contents
|
860 |
"""
|
861 |
restargs = dict(
|
862 |
version=version, |
863 |
data_range=None if range_str is None else 'bytes=%s' % range_str, |
864 |
if_match=if_match, |
865 |
if_none_match=if_none_match, |
866 |
if_modified_since=if_modified_since, |
867 |
if_unmodified_since=if_unmodified_since) |
868 |
|
869 |
( |
870 |
blocksize, |
871 |
blockhash, |
872 |
total_size, |
873 |
hash_list, |
874 |
remote_hashes) = self._get_remote_blocks_info(obj, **restargs)
|
875 |
assert total_size >= 0 |
876 |
|
877 |
if download_cb:
|
878 |
self.progress_bar_gen = download_cb(len(hash_list)) |
879 |
self._cb_next()
|
880 |
|
881 |
num_of_blocks = len(remote_hashes)
|
882 |
ret = [''] * num_of_blocks
|
883 |
self._init_thread_limit()
|
884 |
flying = dict()
|
885 |
try:
|
886 |
for blockid, blockhash in enumerate(remote_hashes): |
887 |
start = blocksize * blockid |
888 |
is_last = start + blocksize > total_size |
889 |
end = (total_size - 1) if is_last else (start + blocksize - 1) |
890 |
data_range_str = _range_up(start, end, end, range_str) |
891 |
if data_range_str:
|
892 |
self._watch_thread_limit(flying.values())
|
893 |
restargs['data_range'] = 'bytes=%s' % data_range_str |
894 |
flying[blockid] = self._get_block_async(obj, **restargs)
|
895 |
for runid, thread in flying.items(): |
896 |
if (blockid + 1) == num_of_blocks: |
897 |
thread.join() |
898 |
elif thread.isAlive():
|
899 |
continue
|
900 |
if thread.exception:
|
901 |
raise thread.exception
|
902 |
ret[runid] = thread.value.content |
903 |
self._cb_next()
|
904 |
flying.pop(runid) |
905 |
return ''.join(ret) |
906 |
except KeyboardInterrupt: |
907 |
sendlog.info('- - - wait for threads to finish')
|
908 |
for thread in activethreads(): |
909 |
thread.join() |
910 |
|
911 |
#Command Progress Bar method
|
912 |
def _cb_next(self, step=1): |
913 |
if hasattr(self, 'progress_bar_gen'): |
914 |
try:
|
915 |
for i in xrange(step): |
916 |
self.progress_bar_gen.next()
|
917 |
except:
|
918 |
pass
|
919 |
|
920 |
def _complete_cb(self): |
921 |
while True: |
922 |
try:
|
923 |
self.progress_bar_gen.next()
|
924 |
except:
|
925 |
break
|
926 |
|
927 |
def get_object_hashmap( |
928 |
self, obj,
|
929 |
version=None,
|
930 |
if_match=None,
|
931 |
if_none_match=None,
|
932 |
if_modified_since=None,
|
933 |
if_unmodified_since=None):
|
934 |
"""
|
935 |
:param obj: (str) remote object path
|
936 |
|
937 |
:param if_match: (str)
|
938 |
|
939 |
:param if_none_match: (str)
|
940 |
|
941 |
:param if_modified_since: (str) formated date
|
942 |
|
943 |
:param if_unmodified_since: (str) formated date
|
944 |
|
945 |
:returns: (list)
|
946 |
"""
|
947 |
try:
|
948 |
r = self.object_get(
|
949 |
obj, |
950 |
hashmap=True,
|
951 |
version=version, |
952 |
if_etag_match=if_match, |
953 |
if_etag_not_match=if_none_match, |
954 |
if_modified_since=if_modified_since, |
955 |
if_unmodified_since=if_unmodified_since) |
956 |
except ClientError as err: |
957 |
if err.status == 304 or err.status == 412: |
958 |
return {}
|
959 |
raise
|
960 |
return r.json
|
961 |
|
962 |
def set_account_group(self, group, usernames): |
963 |
"""
|
964 |
:param group: (str)
|
965 |
|
966 |
:param usernames: (list)
|
967 |
"""
|
968 |
r = self.account_post(update=True, groups={group: usernames}) |
969 |
return r
|
970 |
|
971 |
def del_account_group(self, group): |
972 |
"""
|
973 |
:param group: (str)
|
974 |
"""
|
975 |
self.account_post(update=True, groups={group: []}) |
976 |
|
977 |
def get_account_info(self, until=None): |
978 |
"""
|
979 |
:param until: (str) formated date
|
980 |
|
981 |
:returns: (dict)
|
982 |
"""
|
983 |
r = self.account_head(until=until)
|
984 |
if r.status_code == 401: |
985 |
raise ClientError("No authorization", status=401) |
986 |
return r.headers
|
987 |
|
988 |
def get_account_quota(self): |
989 |
"""
|
990 |
:returns: (dict)
|
991 |
"""
|
992 |
return filter_in(
|
993 |
self.get_account_info(),
|
994 |
'X-Account-Policy-Quota',
|
995 |
exactMatch=True)
|
996 |
|
997 |
#def get_account_versioning(self):
|
998 |
# """
|
999 |
# :returns: (dict)
|
1000 |
# """
|
1001 |
# return filter_in(
|
1002 |
# self.get_account_info(),
|
1003 |
# 'X-Account-Policy-Versioning',
|
1004 |
# exactMatch=True)
|
1005 |
|
1006 |
def get_account_meta(self, until=None): |
1007 |
"""
|
1008 |
:param until: (str) formated date
|
1009 |
|
1010 |
:returns: (dict)
|
1011 |
"""
|
1012 |
return filter_in(self.get_account_info(until=until), 'X-Account-Meta-') |
1013 |
|
1014 |
def get_account_group(self): |
1015 |
"""
|
1016 |
:returns: (dict)
|
1017 |
"""
|
1018 |
return filter_in(self.get_account_info(), 'X-Account-Group-') |
1019 |
|
1020 |
def set_account_meta(self, metapairs): |
1021 |
"""
|
1022 |
:param metapairs: (dict) {key1:val1, key2:val2, ...}
|
1023 |
"""
|
1024 |
assert(type(metapairs) is dict) |
1025 |
r = self.account_post(update=True, metadata=metapairs) |
1026 |
return r.headers
|
1027 |
|
1028 |
def del_account_meta(self, metakey): |
1029 |
"""
|
1030 |
:param metakey: (str) metadatum key
|
1031 |
"""
|
1032 |
r = self.account_post(update=True, metadata={metakey: ''}) |
1033 |
return r.headers
|
1034 |
|
1035 |
#def set_account_quota(self, quota):
|
1036 |
# """
|
1037 |
# :param quota: (int)
|
1038 |
# """
|
1039 |
# self.account_post(update=True, quota=quota)
|
1040 |
|
1041 |
#def set_account_versioning(self, versioning):
|
1042 |
# """
|
1043 |
# :param versioning: (str)
|
1044 |
# """
|
1045 |
# r = self.account_post(update=True, versioning=versioning)
|
1046 |
# return r.headers
|
1047 |
|
1048 |
def list_containers(self): |
1049 |
"""
|
1050 |
:returns: (dict)
|
1051 |
"""
|
1052 |
r = self.account_get()
|
1053 |
return r.json
|
1054 |
|
1055 |
def del_container(self, until=None, delimiter=None): |
1056 |
"""
|
1057 |
:param until: (str) formated date
|
1058 |
|
1059 |
:param delimiter: (str) with / empty container
|
1060 |
|
1061 |
:raises ClientError: 404 Container does not exist
|
1062 |
|
1063 |
:raises ClientError: 409 Container is not empty
|
1064 |
"""
|
1065 |
self._assert_container()
|
1066 |
r = self.container_delete(
|
1067 |
until=until, |
1068 |
delimiter=delimiter, |
1069 |
success=(204, 404, 409)) |
1070 |
if r.status_code == 404: |
1071 |
raise ClientError(
|
1072 |
'Container "%s" does not exist' % self.container, |
1073 |
r.status_code) |
1074 |
elif r.status_code == 409: |
1075 |
raise ClientError(
|
1076 |
'Container "%s" is not empty' % self.container, |
1077 |
r.status_code) |
1078 |
return r.headers
|
1079 |
|
1080 |
def get_container_versioning(self, container=None): |
1081 |
"""
|
1082 |
:param container: (str)
|
1083 |
|
1084 |
:returns: (dict)
|
1085 |
"""
|
1086 |
cnt_back_up = self.container
|
1087 |
try:
|
1088 |
self.container = container or cnt_back_up |
1089 |
return filter_in(
|
1090 |
self.get_container_info(),
|
1091 |
'X-Container-Policy-Versioning')
|
1092 |
finally:
|
1093 |
self.container = cnt_back_up
|
1094 |
|
1095 |
def get_container_limit(self, container=None): |
1096 |
"""
|
1097 |
:param container: (str)
|
1098 |
|
1099 |
:returns: (dict)
|
1100 |
"""
|
1101 |
cnt_back_up = self.container
|
1102 |
try:
|
1103 |
self.container = container or cnt_back_up |
1104 |
return filter_in(
|
1105 |
self.get_container_info(),
|
1106 |
'X-Container-Policy-Quota')
|
1107 |
finally:
|
1108 |
self.container = cnt_back_up
|
1109 |
|
1110 |
def get_container_info(self, container=None, until=None): |
1111 |
"""
|
1112 |
:param until: (str) formated date
|
1113 |
|
1114 |
:returns: (dict)
|
1115 |
|
1116 |
:raises ClientError: 404 Container not found
|
1117 |
"""
|
1118 |
bck_cont = self.container
|
1119 |
try:
|
1120 |
self.container = container or bck_cont |
1121 |
self._assert_container()
|
1122 |
r = self.container_head(until=until)
|
1123 |
except ClientError as err: |
1124 |
err.details.append('for container %s' % self.container) |
1125 |
raise err
|
1126 |
finally:
|
1127 |
self.container = bck_cont
|
1128 |
return r.headers
|
1129 |
|
1130 |
def get_container_meta(self, until=None): |
1131 |
"""
|
1132 |
:param until: (str) formated date
|
1133 |
|
1134 |
:returns: (dict)
|
1135 |
"""
|
1136 |
return filter_in(
|
1137 |
self.get_container_info(until=until), 'X-Container-Meta') |
1138 |
|
1139 |
def get_container_object_meta(self, until=None): |
1140 |
"""
|
1141 |
:param until: (str) formated date
|
1142 |
|
1143 |
:returns: (dict)
|
1144 |
"""
|
1145 |
return filter_in(
|
1146 |
self.get_container_info(until=until), 'X-Container-Object-Meta') |
1147 |
|
1148 |
def set_container_meta(self, metapairs): |
1149 |
"""
|
1150 |
:param metapairs: (dict) {key1:val1, key2:val2, ...}
|
1151 |
"""
|
1152 |
assert(type(metapairs) is dict) |
1153 |
r = self.container_post(update=True, metadata=metapairs) |
1154 |
return r.headers
|
1155 |
|
1156 |
def del_container_meta(self, metakey): |
1157 |
"""
|
1158 |
:param metakey: (str) metadatum key
|
1159 |
|
1160 |
:returns: (dict) response headers
|
1161 |
"""
|
1162 |
r = self.container_post(update=True, metadata={metakey: ''}) |
1163 |
return r.headers
|
1164 |
|
1165 |
def set_container_limit(self, limit): |
1166 |
"""
|
1167 |
:param limit: (int)
|
1168 |
"""
|
1169 |
r = self.container_post(update=True, quota=limit) |
1170 |
return r.headers
|
1171 |
|
1172 |
def set_container_versioning(self, versioning): |
1173 |
"""
|
1174 |
:param versioning: (str)
|
1175 |
"""
|
1176 |
r = self.container_post(update=True, versioning=versioning) |
1177 |
return r.headers
|
1178 |
|
1179 |
def del_object(self, obj, until=None, delimiter=None): |
1180 |
"""
|
1181 |
:param obj: (str) remote object path
|
1182 |
|
1183 |
:param until: (str) formated date
|
1184 |
|
1185 |
:param delimiter: (str)
|
1186 |
"""
|
1187 |
self._assert_container()
|
1188 |
r = self.object_delete(obj, until=until, delimiter=delimiter)
|
1189 |
return r.headers
|
1190 |
|
1191 |
def set_object_meta(self, obj, metapairs): |
1192 |
"""
|
1193 |
:param obj: (str) remote object path
|
1194 |
|
1195 |
:param metapairs: (dict) {key1:val1, key2:val2, ...}
|
1196 |
"""
|
1197 |
assert(type(metapairs) is dict) |
1198 |
r = self.object_post(obj, update=True, metadata=metapairs) |
1199 |
return r.headers
|
1200 |
|
1201 |
def del_object_meta(self, obj, metakey): |
1202 |
"""
|
1203 |
:param obj: (str) remote object path
|
1204 |
|
1205 |
:param metakey: (str) metadatum key
|
1206 |
"""
|
1207 |
r = self.object_post(obj, update=True, metadata={metakey: ''}) |
1208 |
return r.headers
|
1209 |
|
1210 |
def publish_object(self, obj): |
1211 |
"""
|
1212 |
:param obj: (str) remote object path
|
1213 |
|
1214 |
:returns: (str) access url
|
1215 |
"""
|
1216 |
self.object_post(obj, update=True, public=True) |
1217 |
info = self.get_object_info(obj)
|
1218 |
return info['x-object-public'] |
1219 |
pref, sep, rest = self.base_url.partition('//') |
1220 |
base = rest.split('/')[0] |
1221 |
return '%s%s%s/%s' % (pref, sep, base, info['x-object-public']) |
1222 |
|
1223 |
def unpublish_object(self, obj): |
1224 |
"""
|
1225 |
:param obj: (str) remote object path
|
1226 |
"""
|
1227 |
r = self.object_post(obj, update=True, public=False) |
1228 |
return r.headers
|
1229 |
|
1230 |
def get_object_info(self, obj, version=None): |
1231 |
"""
|
1232 |
:param obj: (str) remote object path
|
1233 |
|
1234 |
:param version: (str)
|
1235 |
|
1236 |
:returns: (dict)
|
1237 |
"""
|
1238 |
try:
|
1239 |
r = self.object_head(obj, version=version)
|
1240 |
return r.headers
|
1241 |
except ClientError as ce: |
1242 |
if ce.status == 404: |
1243 |
raise ClientError('Object %s not found' % obj, status=404) |
1244 |
raise
|
1245 |
|
1246 |
def get_object_meta(self, obj, version=None): |
1247 |
"""
|
1248 |
:param obj: (str) remote object path
|
1249 |
|
1250 |
:param version: (str)
|
1251 |
|
1252 |
:returns: (dict)
|
1253 |
"""
|
1254 |
return filter_in(
|
1255 |
self.get_object_info(obj, version=version),
|
1256 |
'X-Object-Meta')
|
1257 |
|
1258 |
def get_object_sharing(self, obj): |
1259 |
"""
|
1260 |
:param obj: (str) remote object path
|
1261 |
|
1262 |
:returns: (dict)
|
1263 |
"""
|
1264 |
r = filter_in( |
1265 |
self.get_object_info(obj),
|
1266 |
'X-Object-Sharing',
|
1267 |
exactMatch=True)
|
1268 |
reply = {} |
1269 |
if len(r) > 0: |
1270 |
perms = r['x-object-sharing'].split(';') |
1271 |
for perm in perms: |
1272 |
try:
|
1273 |
perm.index('=')
|
1274 |
except ValueError: |
1275 |
raise ClientError('Incorrect reply format') |
1276 |
(key, val) = perm.strip().split('=')
|
1277 |
reply[key] = val |
1278 |
return reply
|
1279 |
|
1280 |
def set_object_sharing( |
1281 |
self, obj,
|
1282 |
read_permission=False, write_permission=False): |
1283 |
"""Give read/write permisions to an object.
|
1284 |
|
1285 |
:param obj: (str) remote object path
|
1286 |
|
1287 |
:param read_permission: (list - bool) users and user groups that get
|
1288 |
read permission for this object - False means all previous read
|
1289 |
permissions will be removed
|
1290 |
|
1291 |
:param write_permission: (list - bool) of users and user groups to get
|
1292 |
write permission for this object - False means all previous write
|
1293 |
permissions will be removed
|
1294 |
|
1295 |
:returns: (dict) response headers
|
1296 |
"""
|
1297 |
|
1298 |
perms = dict(read=read_permission or '', write=write_permission or '') |
1299 |
r = self.object_post(obj, update=True, permissions=perms) |
1300 |
return r.headers
|
1301 |
|
1302 |
def del_object_sharing(self, obj): |
1303 |
"""
|
1304 |
:param obj: (str) remote object path
|
1305 |
"""
|
1306 |
return self.set_object_sharing(obj) |
1307 |
|
1308 |
def append_object(self, obj, source_file, upload_cb=None): |
1309 |
"""
|
1310 |
:param obj: (str) remote object path
|
1311 |
|
1312 |
:param source_file: open file descriptor
|
1313 |
|
1314 |
:param upload_db: progress.bar for uploading
|
1315 |
"""
|
1316 |
self._assert_container()
|
1317 |
meta = self.get_container_info()
|
1318 |
blocksize = int(meta['x-container-block-size']) |
1319 |
filesize = fstat(source_file.fileno()).st_size |
1320 |
nblocks = 1 + (filesize - 1) // blocksize |
1321 |
offset = 0
|
1322 |
headers = {} |
1323 |
if upload_cb:
|
1324 |
self.progress_bar_gen = upload_cb(nblocks)
|
1325 |
self._cb_next()
|
1326 |
flying = {} |
1327 |
self._init_thread_limit()
|
1328 |
try:
|
1329 |
for i in range(nblocks): |
1330 |
block = source_file.read(min(blocksize, filesize - offset))
|
1331 |
offset += len(block)
|
1332 |
|
1333 |
self._watch_thread_limit(flying.values())
|
1334 |
unfinished = {} |
1335 |
flying[i] = SilentEvent( |
1336 |
method=self.object_post,
|
1337 |
obj=obj, |
1338 |
update=True,
|
1339 |
content_range='bytes */*',
|
1340 |
content_type='application/octet-stream',
|
1341 |
content_length=len(block),
|
1342 |
data=block) |
1343 |
flying[i].start() |
1344 |
|
1345 |
for key, thread in flying.items(): |
1346 |
if thread.isAlive():
|
1347 |
if i < nblocks:
|
1348 |
unfinished[key] = thread |
1349 |
continue
|
1350 |
thread.join() |
1351 |
if thread.exception:
|
1352 |
raise thread.exception
|
1353 |
headers[key] = thread.value.headers |
1354 |
self._cb_next()
|
1355 |
flying = unfinished |
1356 |
except KeyboardInterrupt: |
1357 |
sendlog.info('- - - wait for threads to finish')
|
1358 |
for thread in activethreads(): |
1359 |
thread.join() |
1360 |
finally:
|
1361 |
from time import sleep |
1362 |
sleep(2 * len(activethreads())) |
1363 |
self._cb_next()
|
1364 |
return headers.values()
|
1365 |
|
1366 |
def truncate_object(self, obj, upto_bytes): |
1367 |
"""
|
1368 |
:param obj: (str) remote object path
|
1369 |
|
1370 |
:param upto_bytes: max number of bytes to leave on file
|
1371 |
|
1372 |
:returns: (dict) response headers
|
1373 |
"""
|
1374 |
ctype = self.get_object_info(obj)['content-type'] |
1375 |
r = self.object_post(
|
1376 |
obj, |
1377 |
update=True,
|
1378 |
content_range='bytes 0-%s/*' % upto_bytes,
|
1379 |
content_type=ctype, |
1380 |
object_bytes=upto_bytes, |
1381 |
source_object=path4url(self.container, obj))
|
1382 |
return r.headers
|
1383 |
|
1384 |
def overwrite_object( |
1385 |
self, obj, start, end, source_file,
|
1386 |
source_version=None, upload_cb=None): |
1387 |
"""Overwrite a part of an object from local source file
|
1388 |
ATTENTION: content_type must always be application/octet-stream
|
1389 |
|
1390 |
:param obj: (str) remote object path
|
1391 |
|
1392 |
:param start: (int) position in bytes to start overwriting from
|
1393 |
|
1394 |
:param end: (int) position in bytes to stop overwriting at
|
1395 |
|
1396 |
:param source_file: open file descriptor
|
1397 |
|
1398 |
:param upload_db: progress.bar for uploading
|
1399 |
"""
|
1400 |
|
1401 |
self._assert_container()
|
1402 |
r = self.get_object_info(obj, version=source_version)
|
1403 |
rf_size = int(r['content-length']) |
1404 |
start, end = int(start), int(end) |
1405 |
assert rf_size >= start, 'Range start %s exceeds file size %s' % ( |
1406 |
start, rf_size) |
1407 |
meta = self.get_container_info()
|
1408 |
blocksize = int(meta['x-container-block-size']) |
1409 |
filesize = fstat(source_file.fileno()).st_size |
1410 |
datasize = end - start + 1
|
1411 |
nblocks = 1 + (datasize - 1) // blocksize |
1412 |
offset = 0
|
1413 |
if upload_cb:
|
1414 |
self.progress_bar_gen = upload_cb(nblocks)
|
1415 |
self._cb_next()
|
1416 |
headers = [] |
1417 |
for i in range(nblocks): |
1418 |
read_size = min(blocksize, filesize - offset, datasize - offset)
|
1419 |
block = source_file.read(read_size) |
1420 |
r = self.object_post(
|
1421 |
obj, |
1422 |
update=True,
|
1423 |
content_type='application/octet-stream',
|
1424 |
content_length=len(block),
|
1425 |
content_range='bytes %s-%s/*' % (
|
1426 |
start + offset, |
1427 |
start + offset + len(block) - 1), |
1428 |
source_version=source_version, |
1429 |
data=block) |
1430 |
headers.append(dict(r.headers))
|
1431 |
offset += len(block)
|
1432 |
self._cb_next()
|
1433 |
self._cb_next()
|
1434 |
return headers
|
1435 |
|
1436 |
def copy_object( |
1437 |
self, src_container, src_object, dst_container,
|
1438 |
dst_object=None,
|
1439 |
source_version=None,
|
1440 |
source_account=None,
|
1441 |
public=False,
|
1442 |
content_type=None,
|
1443 |
delimiter=None):
|
1444 |
"""
|
1445 |
:param src_container: (str) source container
|
1446 |
|
1447 |
:param src_object: (str) source object path
|
1448 |
|
1449 |
:param dst_container: (str) destination container
|
1450 |
|
1451 |
:param dst_object: (str) destination object path
|
1452 |
|
1453 |
:param source_version: (str) source object version
|
1454 |
|
1455 |
:param source_account: (str) account to copy from
|
1456 |
|
1457 |
:param public: (bool)
|
1458 |
|
1459 |
:param content_type: (str)
|
1460 |
|
1461 |
:param delimiter: (str)
|
1462 |
|
1463 |
:returns: (dict) response headers
|
1464 |
"""
|
1465 |
self._assert_account()
|
1466 |
self.container = dst_container
|
1467 |
src_path = path4url(src_container, src_object) |
1468 |
r = self.object_put(
|
1469 |
dst_object or src_object,
|
1470 |
success=201,
|
1471 |
copy_from=src_path, |
1472 |
content_length=0,
|
1473 |
source_version=source_version, |
1474 |
source_account=source_account, |
1475 |
public=public, |
1476 |
content_type=content_type, |
1477 |
delimiter=delimiter) |
1478 |
return r.headers
|
1479 |
|
1480 |
def move_object( |
1481 |
self, src_container, src_object, dst_container,
|
1482 |
dst_object=False,
|
1483 |
source_account=None,
|
1484 |
source_version=None,
|
1485 |
public=False,
|
1486 |
content_type=None,
|
1487 |
delimiter=None):
|
1488 |
"""
|
1489 |
:param src_container: (str) source container
|
1490 |
|
1491 |
:param src_object: (str) source object path
|
1492 |
|
1493 |
:param dst_container: (str) destination container
|
1494 |
|
1495 |
:param dst_object: (str) destination object path
|
1496 |
|
1497 |
:param source_account: (str) account to move from
|
1498 |
|
1499 |
:param source_version: (str) source object version
|
1500 |
|
1501 |
:param public: (bool)
|
1502 |
|
1503 |
:param content_type: (str)
|
1504 |
|
1505 |
:param delimiter: (str)
|
1506 |
|
1507 |
:returns: (dict) response headers
|
1508 |
"""
|
1509 |
self._assert_account()
|
1510 |
self.container = dst_container
|
1511 |
dst_object = dst_object or src_object
|
1512 |
src_path = path4url(src_container, src_object) |
1513 |
r = self.object_put(
|
1514 |
dst_object, |
1515 |
success=201,
|
1516 |
move_from=src_path, |
1517 |
content_length=0,
|
1518 |
source_account=source_account, |
1519 |
source_version=source_version, |
1520 |
public=public, |
1521 |
content_type=content_type, |
1522 |
delimiter=delimiter) |
1523 |
return r.headers
|
1524 |
|
1525 |
def get_sharing_accounts(self, limit=None, marker=None, *args, **kwargs): |
1526 |
"""Get accounts that share with self.account
|
1527 |
|
1528 |
:param limit: (str)
|
1529 |
|
1530 |
:param marker: (str)
|
1531 |
|
1532 |
:returns: (dict)
|
1533 |
"""
|
1534 |
self._assert_account()
|
1535 |
|
1536 |
self.set_param('format', 'json') |
1537 |
self.set_param('limit', limit, iff=limit is not None) |
1538 |
self.set_param('marker', marker, iff=marker is not None) |
1539 |
|
1540 |
path = ''
|
1541 |
success = kwargs.pop('success', (200, 204)) |
1542 |
r = self.get(path, *args, success=success, **kwargs)
|
1543 |
return r.json
|
1544 |
|
1545 |
def get_object_versionlist(self, obj): |
1546 |
"""
|
1547 |
:param obj: (str) remote object path
|
1548 |
|
1549 |
:returns: (list)
|
1550 |
"""
|
1551 |
self._assert_container()
|
1552 |
r = self.object_get(obj, format='json', version='list') |
1553 |
return r.json['versions'] |
1554 |
|
1555 |
def reassign_container(self, project): |
1556 |
r = self.container_post(project=project)
|
1557 |
return r.headers
|