X-Git-Url: https://code.grnet.gr/git/pithos/blobdiff_plain/16526868592493bd90a43605aed6d1ec9d14a4a7..e809b989fbf8f357b9bf44045ee8e33418b48489:/pithos/api/functions.py diff --git a/pithos/api/functions.py b/pithos/api/functions.py index e852459..3a3baf4 100644 --- a/pithos/api/functions.py +++ b/pithos/api/functions.py @@ -1,546 +1,1231 @@ -# -# Copyright (c) 2011 Greek Research and Technology Network -# - -from django.http import HttpResponse -from django.template.loader import render_to_string -from django.utils import simplejson as json -from django.utils.http import http_date, parse_etags - -try: - from django.utils.http import parse_http_date_safe -except: - from pithos.api.compat import parse_http_date_safe - -from pithos.api.faults import Fault, NotModified, BadRequest, Unauthorized, ItemNotFound, Conflict, LengthRequired, PreconditionFailed, RangeNotSatisfiable, UnprocessableEntity -from pithos.api.util import get_meta, get_range, api_method -from pithos.backends.dummy import BackEnd - -import os -import datetime -import logging - -from settings import PROJECT_PATH -STORAGE_PATH = os.path.join(PROJECT_PATH, 'data') - -logger = logging.getLogger(__name__) - -@api_method('GET') -def authenticate(request): - # Normal Response Codes: 204 - # Error Response Codes: serviceUnavailable (503), - # unauthorized (401), - # badRequest (400) - - x_auth_user = request.META.get('HTTP_X_AUTH_USER') - x_auth_key = request.META.get('HTTP_X_AUTH_KEY') - - if not x_auth_user or not x_auth_key: - raise BadRequest('Missing auth user or key.') - - response = HttpResponse(status = 204) - response['X-Auth-Token'] = '0000' - response['X-Storage-Url'] = os.path.join(request.build_absolute_uri(), 'demo') - return response - -def account_demux(request, v_account): - if request.method == 'HEAD': - return account_meta(request, v_account) - elif request.method == 'GET': - return container_list(request, v_account) - elif request.method == 'POST': - return account_update(request, v_account) - else: - return method_not_allowed(request) - -def container_demux(request, v_account, v_container): - if request.method == 'HEAD': - return container_meta(request, v_account, v_container) - elif request.method == 'GET': - return object_list(request, v_account, v_container) - elif request.method == 'PUT': - return container_create(request, v_account, v_container) - elif request.method == 'POST': - return container_update(request, v_account, v_container) - elif request.method == 'DELETE': - return container_delete(request, v_account, v_container) - else: - return method_not_allowed(request) - -def object_demux(request, v_account, v_container, v_object): - if request.method == 'HEAD': - return object_meta(request, v_account, v_container, v_object) - elif request.method == 'GET': - return object_read(request, v_account, v_container, v_object) - elif request.method == 'PUT': - return object_write(request, v_account, v_container, v_object) - elif request.method == 'COPY': - return object_copy(request, v_account, v_container, v_object) - elif request.method == 'POST': - return object_update(request, v_account, v_container, v_object) - elif request.method == 'DELETE': - return object_delete(request, v_account, v_container, v_object) - else: - return method_not_allowed(request) - -@api_method('HEAD') -def account_meta(request, v_account): - # Normal Response Codes: 204 - # Error Response Codes: serviceUnavailable (503), - # unauthorized (401), - # badRequest (400) - - be = BackEnd(STORAGE_PATH) - try: - info = be.get_account_meta(request.user) - except NameError: - info = {'count': 0, 'bytes': 0} - - response = HttpResponse(status = 204) - response['X-Account-Container-Count'] = info['count'] - response['X-Account-Bytes-Used'] = info['bytes'] - for k in [x for x in info.keys() if x.startswith('X-Account-Meta-')]: - response[k.encode('utf-8')] = info[k].encode('utf-8') - - return response - -@api_method('POST') -def account_update(request, v_account): - # Normal Response Codes: 202 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - meta = get_meta(request, 'X-Account-Meta-') - - be = BackEnd(STORAGE_PATH) - be.update_account_meta(request.user, meta) - - return HttpResponse(status = 202) - -@api_method('GET', format_allowed = True) -def container_list(request, v_account): - # Normal Response Codes: 200, 204 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - marker = request.GET.get('marker') - limit = request.GET.get('limit') - if limit: - try: - limit = int(limit) - except ValueError: - limit = 10000 - - be = BackEnd(STORAGE_PATH) - try: - containers = be.list_containers(request.user, marker, limit) - except NameError: - containers = [] - - if request.serialization == 'text': - if len(containers) == 0: - # The cloudfiles python bindings expect 200 if json/xml. - return HttpResponse(status = 204) - return HttpResponse('\n'.join(containers), status = 200) - - # TODO: Do this with a backend parameter? - try: - containers = [be.get_container_meta(request.user, x) for x in containers] - except NameError: - raise ItemNotFound() - if request.serialization == 'xml': - data = render_to_string('containers.xml', {'account': request.user, 'containers': containers}) - elif request.serialization == 'json': - data = json.dumps(containers) - return HttpResponse(data, status = 200) - -@api_method('HEAD') -def container_meta(request, v_account, v_container): - # Normal Response Codes: 204 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - be = BackEnd(STORAGE_PATH) - try: - info = be.get_container_meta(request.user, v_container) - except NameError: - raise ItemNotFound() - - response = HttpResponse(status = 204) - response['X-Container-Object-Count'] = info['count'] - response['X-Container-Bytes-Used'] = info['bytes'] - for k in [x for x in info.keys() if x.startswith('X-Container-Meta-')]: - response[k.encode('utf-8')] = info[k].encode('utf-8') - - return response - -@api_method('PUT') -def container_create(request, v_account, v_container): - # Normal Response Codes: 201, 202 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - meta = get_meta(request, 'X-Container-Meta-') - - be = BackEnd(STORAGE_PATH) - try: - be.create_container(request.user, v_container) - ret = 201 - except NameError: - ret = 202 - - if len(meta) > 0: - be.update_container_meta(request.user, v_container, meta) - - return HttpResponse(status = ret) - -@api_method('POST') -def container_update(request, v_account, v_container): - # Normal Response Codes: 202 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - meta = get_meta(request, 'X-Container-Meta-') - - be = BackEnd(STORAGE_PATH) - try: - be.update_container_meta(request.user, v_container, meta) - except NameError: - raise ItemNotFound() - - return HttpResponse(status = 202) - -@api_method('DELETE') -def container_delete(request, v_account, v_container): - # Normal Response Codes: 204 - # Error Response Codes: serviceUnavailable (503), - # conflict (409), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - be = BackEnd(STORAGE_PATH) - try: - be.delete_container(request.user, v_container) - except NameError: - raise ItemNotFound() - except IndexError: - raise Conflict() - return HttpResponse(status = 204) - -@api_method('GET', format_allowed = True) -def object_list(request, v_account, v_container): - # Normal Response Codes: 200, 204 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - path = request.GET.get('path') - prefix = request.GET.get('prefix') - delimiter = request.GET.get('delimiter') - - # TODO: Check if the cloudfiles python bindings expect the results with the prefix. - # Path overrides prefix and delimiter. - if path: - prefix = path - delimiter = '/' - # Naming policy. - if prefix and delimiter: - prefix = prefix + delimiter - if not prefix: - prefix = '' - - marker = request.GET.get('marker') - limit = request.GET.get('limit') - if limit: - try: - limit = int(limit) - except ValueError: - limit = 10000 - - be = BackEnd(STORAGE_PATH) - try: - objects = be.list_objects(request.user, v_container, prefix, delimiter, marker, limit) - except NameError: - raise ItemNotFound() - - if request.serialization == 'text': - if len(objects) == 0: - # The cloudfiles python bindings expect 200 if json/xml. - return HttpResponse(status = 204) - return HttpResponse('\n'.join(objects), status = 200) - - # TODO: Do this with a backend parameter? - try: - objects = [be.get_object_meta(request.user, v_container, x) for x in objects] - except NameError: - raise ItemNotFound() - # Format dates. - for x in objects: - if x.has_key('last_modified'): - x['last_modified'] = datetime.datetime.fromtimestamp(x['last_modified']).isoformat() - if request.serialization == 'xml': - data = render_to_string('objects.xml', {'container': v_container, 'objects': objects}) - elif request.serialization == 'json': - data = json.dumps(objects) - return HttpResponse(data, status = 200) - -@api_method('HEAD') -def object_meta(request, v_account, v_container, v_object): - # Normal Response Codes: 204 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - be = BackEnd(STORAGE_PATH) - try: - info = be.get_object_meta(request.user, v_container, v_object) - except NameError: - raise ItemNotFound() - - response = HttpResponse(status = 204) - response['ETag'] = info['hash'] - response['Content-Length'] = info['bytes'] - response['Content-Type'] = info['content_type'] - response['Last-Modified'] = http_date(info['last_modified']) - for k in [x for x in info.keys() if x.startswith('X-Object-Meta-')]: - response[k.encode('utf-8')] = info[k].encode('utf-8') - - return response - -@api_method('GET') -def object_read(request, v_account, v_container, v_object): - # Normal Response Codes: 200, 206 - # Error Response Codes: serviceUnavailable (503), - # rangeNotSatisfiable (416), - # preconditionFailed (412), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400), - # notModified (304) - - be = BackEnd(STORAGE_PATH) - try: - info = be.get_object_meta(request.user, v_container, v_object) - except NameError: - raise ItemNotFound() - - # TODO: Check if the cloudfiles python bindings expect hash/content_type/last_modified on range requests. - response = HttpResponse() - response['ETag'] = info['hash'] - response['Content-Type'] = info['content_type'] - response['Last-Modified'] = http_date(info['last_modified']) - - # Range handling. - range = get_range(request) - if range is not None: - offset, length = range - if length: - if offset + length > info['bytes']: - raise RangeNotSatisfiable() - else: - if offset > info['bytes']: - raise RangeNotSatisfiable() - if not length: - length = -1 - - response['Content-Length'] = length - response.status_code = 206 - else: - offset = 0 - length = -1 - - response['Content-Length'] = info['bytes'] - response.status_code = 200 - - # Conditions (according to RFC2616 must be evaluated at the end). - # TODO: Check etag/date conditions. - if_match = request.META.get('HTTP_IF_MATCH') - if if_match is not None and if_match != '*': - if info['hash'] not in parse_etags(if_match): - raise PreconditionFailed() - - if_none_match = request.META.get('HTTP_IF_NONE_MATCH') - if if_none_match is not None: - if if_none_match == '*' or info['hash'] in parse_etags(if_none_match): - raise NotModified() - - if_modified_since = request.META.get('HTTP_IF_MODIFIED_SINCE') - if if_modified_since is not None: - if_modified_since = parse_http_date_safe(if_modified_since) - if if_modified_since is not None and info['last_modified'] <= if_modified_since: - raise NotModified() - - if_unmodified_since = request.META.get('HTTP_IF_UNMODIFIED_SINCE') - if if_unmodified_since is not None: - if_unmodified_since = parse_http_date_safe(if_unmodified_since) - if if_unmodified_since is not None and info['last_modified'] > if_unmodified_since: - raise PreconditionFailed() - - try: - response.content = be.get_object(request.user, v_container, v_object, offset, length) - except NameError: - raise ItemNotFound() - - return response - -@api_method('PUT') -def object_write(request, v_account, v_container, v_object): - # Normal Response Codes: 201 - # Error Response Codes: serviceUnavailable (503), - # unprocessableEntity (422), - # lengthRequired (411), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - be = BackEnd(STORAGE_PATH) - - copy_from = request.META.get('HTTP_X_COPY_FROM') - if copy_from: - parts = copy_from.split('/') - if len(parts) < 3 or parts[0] != '': - raise BadRequest('Bad X-Copy-From path.') - copy_container = parts[1] - copy_name = '/'.join(parts[2:]) - - try: - info = be.get_object_meta(request.user, copy_container, copy_name) - except NameError: - raise ItemNotFound() - - content_length = request.META.get('CONTENT_LENGTH') - content_type = request.META.get('CONTENT_TYPE') - # TODO: Why is this required? Copy this ammount? - if not content_length: - raise LengthRequired() - if content_type: - info['content_type'] = content_type - - meta = get_meta(request, 'X-Object-Meta-') - info.update(meta) - - try: - be.copy_object(request.user, copy_container, copy_name, v_container, v_object) - be.update_object_meta(request.user, v_container, v_object, info) - except NameError: - raise ItemNotFound() - - response = HttpResponse(status = 201) - else: - content_length = request.META.get('CONTENT_LENGTH') - content_type = request.META.get('CONTENT_TYPE') - if not content_length or not content_type: - raise LengthRequired() - - info = {'content_type': content_type} - meta = get_meta(request, 'X-Object-Meta-') - info.update(meta) - - data = request.raw_post_data - try: - be.update_object(request.user, v_container, v_object, data) - be.update_object_meta(request.user, v_container, v_object, info) - except NameError: - raise ItemNotFound() - - # TODO: Check before update? - info = be.get_object_meta(request.user, v_container, v_object) - etag = request.META.get('HTTP_ETAG') - if etag: - etag = parse_etags(etag)[0] # TODO: Unescape properly. - if etag != info['hash']: - be.delete_object(request.user, v_container, v_object) - raise UnprocessableEntity() - - response = HttpResponse(status = 201) - response['ETag'] = info['hash'] - - return response - -@api_method('COPY') -def object_copy(request, v_account, v_container, v_object): - # Normal Response Codes: 201 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - destination = request.META.get('HTTP_DESTINATION') - if not destination: - raise BadRequest('Missing Destination.'); - - parts = destination.split('/') - if len(parts) < 3 or parts[0] != '': - raise BadRequest('Bad Destination path.') - dest_container = parts[1] - dest_name = '/'.join(parts[2:]) - - be = BackEnd(STORAGE_PATH) - try: - info = be.get_object_meta(request.user, v_container, v_object) - except NameError: - raise ItemNotFound() - - content_type = request.META.get('CONTENT_TYPE') - if content_type: - info['content_type'] = content_type - meta = get_meta(request, 'X-Object-Meta-') - info.update(meta) - - try: - be.copy_object(request.user, v_container, v_object, dest_container, dest_name) - be.update_object_meta(request.user, dest_container, dest_name, info) - except NameError: - raise ItemNotFound() - - response = HttpResponse(status = 201) - -@api_method('POST') -def object_update(request, v_account, v_container, v_object): - # Normal Response Codes: 202 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - meta = get_meta(request, 'X-Object-Meta-') - - be = BackEnd(STORAGE_PATH) - try: - be.update_object_meta(request.user, v_container, v_object, meta) - except NameError: - raise ItemNotFound() - - return HttpResponse(status = 202) - -@api_method('DELETE') -def object_delete(request, v_account, v_container, v_object): - # Normal Response Codes: 204 - # Error Response Codes: serviceUnavailable (503), - # itemNotFound (404), - # unauthorized (401), - # badRequest (400) - - be = BackEnd(STORAGE_PATH) - try: - be.delete_object(request.user, v_container, v_object) - except NameError: - raise ItemNotFound() - return HttpResponse(status = 204) - -@api_method() -def method_not_allowed(request): - raise BadRequest('Method not allowed.') +# Copyright 2011-2012 GRNET S.A. All rights reserved. +# +# Redistribution and use in source and binary forms, with or +# without modification, are permitted provided that the following +# conditions are met: +# +# 1. Redistributions of source code must retain the above +# copyright notice, this list of conditions and the following +# disclaimer. +# +# 2. Redistributions in binary form must reproduce the above +# copyright notice, this list of conditions and the following +# disclaimer in the documentation and/or other materials +# provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS +# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR +# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR +# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF +# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED +# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN +# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +# POSSIBILITY OF SUCH DAMAGE. +# +# The views and conclusions contained in the software and +# documentation are those of the authors and should not be +# interpreted as representing official policies, either expressed +# or implied, of GRNET S.A. + +from xml.dom import minidom + +from django.conf import settings +from django.http import HttpResponse +from django.template.loader import render_to_string +from django.utils import simplejson as json +from django.utils.http import parse_etags +from django.utils.encoding import smart_str +from django.views.decorators.csrf import csrf_exempt + +from pithos.lib.filter import parse_filters + +from pithos.api.faults import (Fault, NotModified, BadRequest, Unauthorized, Forbidden, ItemNotFound, Conflict, + LengthRequired, PreconditionFailed, RequestEntityTooLarge, RangeNotSatisfiable, UnprocessableEntity) +from pithos.api.util import (json_encode_decimal, rename_meta_key, format_header_key, printable_header_dict, + get_account_headers, put_account_headers, get_container_headers, put_container_headers, get_object_headers, + put_object_headers, update_manifest_meta, update_sharing_meta, update_public_meta, + validate_modification_preconditions, validate_matching_preconditions, split_container_object_string, + copy_or_move_object, get_int_parameter, get_content_length, get_content_range, socket_read_iterator, + SaveToBackendHandler, object_data_response, put_object_block, hashmap_md5, simple_list_response, api_method) +from pithos.backends.base import NotAllowedError, QuotaError + +import logging +import hashlib + + +logger = logging.getLogger(__name__) + + +@csrf_exempt +def top_demux(request): + if request.method == 'GET': + if getattr(request, 'user', None) is not None: + return account_list(request) + return authenticate(request) + else: + return method_not_allowed(request) + +@csrf_exempt +def account_demux(request, v_account): + if request.method == 'HEAD': + return account_meta(request, v_account) + elif request.method == 'POST': + return account_update(request, v_account) + elif request.method == 'GET': + return container_list(request, v_account) + else: + return method_not_allowed(request) + +@csrf_exempt +def container_demux(request, v_account, v_container): + if request.method == 'HEAD': + return container_meta(request, v_account, v_container) + elif request.method == 'PUT': + return container_create(request, v_account, v_container) + elif request.method == 'POST': + return container_update(request, v_account, v_container) + elif request.method == 'DELETE': + return container_delete(request, v_account, v_container) + elif request.method == 'GET': + return object_list(request, v_account, v_container) + else: + return method_not_allowed(request) + +@csrf_exempt +def object_demux(request, v_account, v_container, v_object): + if request.method == 'HEAD': + return object_meta(request, v_account, v_container, v_object) + elif request.method == 'GET': + return object_read(request, v_account, v_container, v_object) + elif request.method == 'PUT': + return object_write(request, v_account, v_container, v_object) + elif request.method == 'COPY': + return object_copy(request, v_account, v_container, v_object) + elif request.method == 'MOVE': + return object_move(request, v_account, v_container, v_object) + elif request.method == 'POST': + if request.META.get('CONTENT_TYPE', '').startswith('multipart/form-data'): + return object_write_form(request, v_account, v_container, v_object) + return object_update(request, v_account, v_container, v_object) + elif request.method == 'DELETE': + return object_delete(request, v_account, v_container, v_object) + else: + return method_not_allowed(request) + +@api_method('GET', user_required=False) +def authenticate(request): + # Normal Response Codes: 204 + # Error Response Codes: internalServerError (500), + # forbidden (403), + # badRequest (400) + + x_auth_user = request.META.get('HTTP_X_AUTH_USER') + x_auth_key = request.META.get('HTTP_X_AUTH_KEY') + if not x_auth_user or not x_auth_key: + raise BadRequest('Missing X-Auth-User or X-Auth-Key header') + response = HttpResponse(status=204) + + uri = request.build_absolute_uri() + if '?' in uri: + uri = uri[:uri.find('?')] + + response['X-Auth-Token'] = x_auth_key + response['X-Storage-Url'] = uri + ('' if uri.endswith('/') else '/') + x_auth_user + return response + +@api_method('GET', format_allowed=True) +def account_list(request): + # Normal Response Codes: 200, 204 + # Error Response Codes: internalServerError (500), + # badRequest (400) + + response = HttpResponse() + + marker = request.GET.get('marker') + limit = get_int_parameter(request.GET.get('limit')) + if not limit: + limit = 10000 + + accounts = request.backend.list_accounts(request.user_uniq, marker, limit) + + if request.serialization == 'text': + if len(accounts) == 0: + # The cloudfiles python bindings expect 200 if json/xml. + response.status_code = 204 + return response + response.status_code = 200 + response.content = '\n'.join(accounts) + '\n' + return response + + account_meta = [] + for x in accounts: + if x == request.user_uniq: + continue + try: + meta = request.backend.get_account_meta(request.user_uniq, x, 'pithos') + groups = request.backend.get_account_groups(request.user_uniq, x) + except NotAllowedError: + raise Forbidden('Not allowed') + else: + rename_meta_key(meta, 'modified', 'last_modified') + rename_meta_key(meta, 'until_timestamp', 'x_account_until_timestamp') + m = dict([(k[15:], v) for k, v in meta.iteritems() if k.startswith('X-Account-Meta-')]) + for k in m: + del(meta['X-Account-Meta-' + k]) + if m: + meta['X-Account-Meta'] = printable_header_dict(m) + if groups: + meta['X-Account-Group'] = printable_header_dict(dict([(k, ','.join(v)) for k, v in groups.iteritems()])) + account_meta.append(printable_header_dict(meta)) + if request.serialization == 'xml': + data = render_to_string('accounts.xml', {'accounts': account_meta}) + elif request.serialization == 'json': + data = json.dumps(account_meta) + response.status_code = 200 + response.content = data + return response + +@api_method('HEAD') +def account_meta(request, v_account): + # Normal Response Codes: 204 + # Error Response Codes: internalServerError (500), + # forbidden (403), + # badRequest (400) + + until = get_int_parameter(request.GET.get('until')) + try: + meta = request.backend.get_account_meta(request.user_uniq, v_account, 'pithos', until) + groups = request.backend.get_account_groups(request.user_uniq, v_account) + policy = request.backend.get_account_policy(request.user_uniq, v_account) + except NotAllowedError: + raise Forbidden('Not allowed') + + validate_modification_preconditions(request, meta) + + response = HttpResponse(status=204) + put_account_headers(response, meta, groups, policy) + return response + +@api_method('POST') +def account_update(request, v_account): + # Normal Response Codes: 202 + # Error Response Codes: internalServerError (500), + # forbidden (403), + # badRequest (400) + + meta, groups = get_account_headers(request) + replace = True + if 'update' in request.GET: + replace = False + if groups: + try: + request.backend.update_account_groups(request.user_uniq, v_account, + groups, replace) + except NotAllowedError: + raise Forbidden('Not allowed') + except ValueError: + raise BadRequest('Invalid groups header') + if meta or replace: + try: + request.backend.update_account_meta(request.user_uniq, v_account, + 'pithos', meta, replace) + except NotAllowedError: + raise Forbidden('Not allowed') + return HttpResponse(status=202) + +@api_method('GET', format_allowed=True) +def container_list(request, v_account): + # Normal Response Codes: 200, 204 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + until = get_int_parameter(request.GET.get('until')) + try: + meta = request.backend.get_account_meta(request.user_uniq, v_account, 'pithos', until) + groups = request.backend.get_account_groups(request.user_uniq, v_account) + policy = request.backend.get_account_policy(request.user_uniq, v_account) + except NotAllowedError: + raise Forbidden('Not allowed') + + validate_modification_preconditions(request, meta) + + response = HttpResponse() + put_account_headers(response, meta, groups, policy) + + marker = request.GET.get('marker') + limit = get_int_parameter(request.GET.get('limit')) + if not limit: + limit = 10000 + + shared = False + if 'shared' in request.GET: + shared = True + + try: + containers = request.backend.list_containers(request.user_uniq, v_account, + marker, limit, shared, until) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + containers = [] + + if request.serialization == 'text': + if len(containers) == 0: + # The cloudfiles python bindings expect 200 if json/xml. + response.status_code = 204 + return response + response.status_code = 200 + response.content = '\n'.join(containers) + '\n' + return response + + container_meta = [] + for x in containers: + try: + meta = request.backend.get_container_meta(request.user_uniq, v_account, + x, 'pithos', until) + policy = request.backend.get_container_policy(request.user_uniq, + v_account, x) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + pass + else: + rename_meta_key(meta, 'modified', 'last_modified') + rename_meta_key(meta, 'until_timestamp', 'x_container_until_timestamp') + m = dict([(k[17:], v) for k, v in meta.iteritems() if k.startswith('X-Container-Meta-')]) + for k in m: + del(meta['X-Container-Meta-' + k]) + if m: + meta['X-Container-Meta'] = printable_header_dict(m) + if policy: + meta['X-Container-Policy'] = printable_header_dict(dict([(k, v) for k, v in policy.iteritems()])) + container_meta.append(printable_header_dict(meta)) + if request.serialization == 'xml': + data = render_to_string('containers.xml', {'account': v_account, 'containers': container_meta}) + elif request.serialization == 'json': + data = json.dumps(container_meta) + response.status_code = 200 + response.content = data + return response + +@api_method('HEAD') +def container_meta(request, v_account, v_container): + # Normal Response Codes: 204 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + until = get_int_parameter(request.GET.get('until')) + try: + meta = request.backend.get_container_meta(request.user_uniq, v_account, + v_container, 'pithos', until) + meta['object_meta'] = request.backend.list_object_meta(request.user_uniq, + v_account, v_container, 'pithos', until) + policy = request.backend.get_container_policy(request.user_uniq, v_account, + v_container) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + + validate_modification_preconditions(request, meta) + + response = HttpResponse(status=204) + put_container_headers(request, response, meta, policy) + return response + +@api_method('PUT') +def container_create(request, v_account, v_container): + # Normal Response Codes: 201, 202 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + meta, policy = get_container_headers(request) + + try: + request.backend.put_container(request.user_uniq, v_account, v_container, policy) + ret = 201 + except NotAllowedError: + raise Forbidden('Not allowed') + except ValueError: + raise BadRequest('Invalid policy header') + except NameError: + ret = 202 + + if ret == 202 and policy: + try: + request.backend.update_container_policy(request.user_uniq, v_account, + v_container, policy, replace=False) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + except ValueError: + raise BadRequest('Invalid policy header') + if meta: + try: + request.backend.update_container_meta(request.user_uniq, v_account, + v_container, 'pithos', meta, replace=False) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + + return HttpResponse(status=ret) + +@api_method('POST', format_allowed=True) +def container_update(request, v_account, v_container): + # Normal Response Codes: 202 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + meta, policy = get_container_headers(request) + replace = True + if 'update' in request.GET: + replace = False + if policy: + try: + request.backend.update_container_policy(request.user_uniq, v_account, + v_container, policy, replace) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + except ValueError: + raise BadRequest('Invalid policy header') + if meta or replace: + try: + request.backend.update_container_meta(request.user_uniq, v_account, + v_container, 'pithos', meta, replace) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + + content_length = -1 + if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked': + content_length = get_int_parameter(request.META.get('CONTENT_LENGTH', 0)) + content_type = request.META.get('CONTENT_TYPE') + hashmap = [] + if content_type and content_type == 'application/octet-stream' and content_length != 0: + for data in socket_read_iterator(request, content_length, + request.backend.block_size): + # TODO: Raise 408 (Request Timeout) if this takes too long. + # TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data. + hashmap.append(request.backend.put_block(data)) + + response = HttpResponse(status=202) + if hashmap: + response.content = simple_list_response(request, hashmap) + return response + +@api_method('DELETE') +def container_delete(request, v_account, v_container): + # Normal Response Codes: 204 + # Error Response Codes: internalServerError (500), + # conflict (409), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + until = get_int_parameter(request.GET.get('until')) + try: + request.backend.delete_container(request.user_uniq, v_account, v_container, + until) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + except IndexError: + raise Conflict('Container is not empty') + return HttpResponse(status=204) + +@api_method('GET', format_allowed=True) +def object_list(request, v_account, v_container): + # Normal Response Codes: 200, 204 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + until = get_int_parameter(request.GET.get('until')) + try: + meta = request.backend.get_container_meta(request.user_uniq, v_account, + v_container, 'pithos', until) + meta['object_meta'] = request.backend.list_object_meta(request.user_uniq, + v_account, v_container, 'pithos', until) + policy = request.backend.get_container_policy(request.user_uniq, v_account, + v_container) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + + validate_modification_preconditions(request, meta) + + response = HttpResponse() + put_container_headers(request, response, meta, policy) + + path = request.GET.get('path') + prefix = request.GET.get('prefix') + delimiter = request.GET.get('delimiter') + + # Path overrides prefix and delimiter. + virtual = True + if path: + prefix = path + delimiter = '/' + virtual = False + + # Naming policy. + if prefix and delimiter: + prefix = prefix + delimiter + if not prefix: + prefix = '' + prefix = prefix.lstrip('/') + + marker = request.GET.get('marker') + limit = get_int_parameter(request.GET.get('limit')) + if not limit: + limit = 10000 + + keys = request.GET.get('meta') + if keys: + keys = [smart_str(x.strip()) for x in keys.split(',') if x.strip() != ''] + included, excluded, opers = parse_filters(keys) + keys = [] + keys += [format_header_key('X-Object-Meta-' + x) for x in included] + keys += ['!'+format_header_key('X-Object-Meta-' + x) for x in excluded] + keys += ['%s%s%s' % (format_header_key('X-Object-Meta-' + k), o, v) for k, o, v in opers] + else: + keys = [] + + shared = False + if 'shared' in request.GET: + shared = True + + try: + objects = request.backend.list_objects(request.user_uniq, v_account, + v_container, prefix, delimiter, marker, + limit, virtual, 'pithos', keys, shared, until) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + + if request.serialization == 'text': + if len(objects) == 0: + # The cloudfiles python bindings expect 200 if json/xml. + response.status_code = 204 + return response + response.status_code = 200 + response.content = '\n'.join([x[0] for x in objects]) + '\n' + return response + + object_meta = [] + for x in objects: + if x[1] is None: + # Virtual objects/directories. + object_meta.append({'subdir': x[0]}) + else: + try: + meta = request.backend.get_object_meta(request.user_uniq, v_account, + v_container, x[0], 'pithos', x[1]) + if until is None: + permissions = request.backend.get_object_permissions( + request.user_uniq, v_account, v_container, x[0]) + public = request.backend.get_object_public(request.user_uniq, + v_account, v_container, x[0]) + else: + permissions = None + public = None + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + pass + else: + rename_meta_key(meta, 'hash', 'x_object_hash') # Will be replaced by ETag. + rename_meta_key(meta, 'ETag', 'hash') + rename_meta_key(meta, 'uuid', 'x_object_uuid') + rename_meta_key(meta, 'modified', 'last_modified') + rename_meta_key(meta, 'modified_by', 'x_object_modified_by') + rename_meta_key(meta, 'version', 'x_object_version') + rename_meta_key(meta, 'version_timestamp', 'x_object_version_timestamp') + m = dict([(k[14:], v) for k, v in meta.iteritems() if k.startswith('X-Object-Meta-')]) + for k in m: + del(meta['X-Object-Meta-' + k]) + if m: + meta['X-Object-Meta'] = printable_header_dict(m) + update_sharing_meta(request, permissions, v_account, v_container, x[0], meta) + update_public_meta(public, meta) + object_meta.append(printable_header_dict(meta)) + if request.serialization == 'xml': + data = render_to_string('objects.xml', {'container': v_container, 'objects': object_meta}) + elif request.serialization == 'json': + data = json.dumps(object_meta, default=json_encode_decimal) + response.status_code = 200 + response.content = data + return response + +@api_method('HEAD') +def object_meta(request, v_account, v_container, v_object): + # Normal Response Codes: 204 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + version = request.GET.get('version') + try: + meta = request.backend.get_object_meta(request.user_uniq, v_account, + v_container, v_object, 'pithos', version) + if version is None: + permissions = request.backend.get_object_permissions(request.user_uniq, + v_account, v_container, v_object) + public = request.backend.get_object_public(request.user_uniq, v_account, + v_container, v_object) + else: + permissions = None + public = None + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + except IndexError: + raise ItemNotFound('Version does not exist') + + update_manifest_meta(request, v_account, meta) + update_sharing_meta(request, permissions, v_account, v_container, v_object, meta) + update_public_meta(public, meta) + + # Evaluate conditions. + validate_modification_preconditions(request, meta) + try: + validate_matching_preconditions(request, meta) + except NotModified: + response = HttpResponse(status=304) + response['ETag'] = meta['ETag'] + return response + + response = HttpResponse(status=200) + put_object_headers(response, meta) + return response + +@api_method('GET', format_allowed=True) +def object_read(request, v_account, v_container, v_object): + # Normal Response Codes: 200, 206 + # Error Response Codes: internalServerError (500), + # rangeNotSatisfiable (416), + # preconditionFailed (412), + # itemNotFound (404), + # forbidden (403), + # badRequest (400), + # notModified (304) + + version = request.GET.get('version') + + # Reply with the version list. Do this first, as the object may be deleted. + if version == 'list': + if request.serialization == 'text': + raise BadRequest('No format specified for version list.') + + try: + v = request.backend.list_versions(request.user_uniq, v_account, + v_container, v_object) + except NotAllowedError: + raise Forbidden('Not allowed') + d = {'versions': v} + if request.serialization == 'xml': + d['object'] = v_object + data = render_to_string('versions.xml', d) + elif request.serialization == 'json': + data = json.dumps(d, default=json_encode_decimal) + + response = HttpResponse(data, status=200) + response['Content-Length'] = len(data) + return response + + try: + meta = request.backend.get_object_meta(request.user_uniq, v_account, + v_container, v_object, 'pithos', version) + if version is None: + permissions = request.backend.get_object_permissions(request.user_uniq, + v_account, v_container, v_object) + public = request.backend.get_object_public(request.user_uniq, v_account, + v_container, v_object) + else: + permissions = None + public = None + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + except IndexError: + raise ItemNotFound('Version does not exist') + + update_manifest_meta(request, v_account, meta) + update_sharing_meta(request, permissions, v_account, v_container, v_object, meta) + update_public_meta(public, meta) + + # Evaluate conditions. + validate_modification_preconditions(request, meta) + try: + validate_matching_preconditions(request, meta) + except NotModified: + response = HttpResponse(status=304) + response['ETag'] = meta['ETag'] + return response + + sizes = [] + hashmaps = [] + if 'X-Object-Manifest' in meta: + try: + src_container, src_name = split_container_object_string('/' + meta['X-Object-Manifest']) + objects = request.backend.list_objects(request.user_uniq, v_account, + src_container, prefix=src_name, virtual=False) + except NotAllowedError: + raise Forbidden('Not allowed') + except ValueError: + raise BadRequest('Invalid X-Object-Manifest header') + except NameError: + raise ItemNotFound('Container does not exist') + + try: + for x in objects: + s, h = request.backend.get_object_hashmap(request.user_uniq, + v_account, src_container, x[0], x[1]) + sizes.append(s) + hashmaps.append(h) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + except IndexError: + raise ItemNotFound('Version does not exist') + else: + try: + s, h = request.backend.get_object_hashmap(request.user_uniq, v_account, + v_container, v_object, version) + sizes.append(s) + hashmaps.append(h) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + except IndexError: + raise ItemNotFound('Version does not exist') + + # Reply with the hashmap. + if 'hashmap' in request.GET and request.serialization != 'text': + size = sum(sizes) + hashmap = sum(hashmaps, []) + d = { + 'block_size': request.backend.block_size, + 'block_hash': request.backend.hash_algorithm, + 'bytes': size, + 'hashes': hashmap} + if request.serialization == 'xml': + d['object'] = v_object + data = render_to_string('hashes.xml', d) + elif request.serialization == 'json': + data = json.dumps(d) + + response = HttpResponse(data, status=200) + put_object_headers(response, meta) + response['Content-Length'] = len(data) + return response + + request.serialization = 'text' # Unset. + return object_data_response(request, sizes, hashmaps, meta) + +@api_method('PUT', format_allowed=True) +def object_write(request, v_account, v_container, v_object): + # Normal Response Codes: 201 + # Error Response Codes: internalServerError (500), + # unprocessableEntity (422), + # lengthRequired (411), + # conflict (409), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + # Evaluate conditions. + if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'): + try: + meta = request.backend.get_object_meta(request.user_uniq, v_account, + v_container, v_object, 'pithos') + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + meta = {} + validate_matching_preconditions(request, meta) + + copy_from = request.META.get('HTTP_X_COPY_FROM') + move_from = request.META.get('HTTP_X_MOVE_FROM') + if copy_from or move_from: + content_length = get_content_length(request) # Required by the API. + + src_account = request.META.get('HTTP_X_SOURCE_ACCOUNT') + if not src_account: + src_account = request.user_uniq + if move_from: + try: + src_container, src_name = split_container_object_string(move_from) + except ValueError: + raise BadRequest('Invalid X-Move-From header') + version_id = copy_or_move_object(request, src_account, src_container, src_name, + v_account, v_container, v_object, move=True) + else: + try: + src_container, src_name = split_container_object_string(copy_from) + except ValueError: + raise BadRequest('Invalid X-Copy-From header') + version_id = copy_or_move_object(request, src_account, src_container, src_name, + v_account, v_container, v_object, move=False) + response = HttpResponse(status=201) + response['X-Object-Version'] = version_id + return response + + meta, permissions, public = get_object_headers(request) + content_length = -1 + if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked': + content_length = get_content_length(request) + # Should be BadRequest, but API says otherwise. + if 'Content-Type' not in meta: + raise LengthRequired('Missing Content-Type header') + + if 'hashmap' in request.GET: + if request.serialization not in ('json', 'xml'): + raise BadRequest('Invalid hashmap format') + + data = '' + for block in socket_read_iterator(request, content_length, + request.backend.block_size): + data = '%s%s' % (data, block) + + if request.serialization == 'json': + d = json.loads(data) + if not hasattr(d, '__getitem__'): + raise BadRequest('Invalid data formating') + try: + hashmap = d['hashes'] + size = int(d['bytes']) + except: + raise BadRequest('Invalid data formatting') + elif request.serialization == 'xml': + try: + xml = minidom.parseString(data) + obj = xml.getElementsByTagName('object')[0] + size = int(obj.attributes['bytes'].value) + + hashes = xml.getElementsByTagName('hash') + hashmap = [] + for hash in hashes: + hashmap.append(hash.firstChild.data) + except: + raise BadRequest('Invalid data formatting') + else: + md5 = hashlib.md5() + size = 0 + hashmap = [] + for data in socket_read_iterator(request, content_length, + request.backend.block_size): + # TODO: Raise 408 (Request Timeout) if this takes too long. + # TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data. + size += len(data) + hashmap.append(request.backend.put_block(data)) + md5.update(data) + + meta['ETag'] = md5.hexdigest().lower() + etag = request.META.get('HTTP_ETAG') + if etag and parse_etags(etag)[0].lower() != meta['ETag']: + raise UnprocessableEntity('Object ETag does not match') + + try: + version_id = request.backend.update_object_hashmap(request.user_uniq, + v_account, v_container, v_object, size, hashmap, + 'pithos', meta, True, permissions) + except NotAllowedError: + raise Forbidden('Not allowed') + except IndexError, e: + raise Conflict(simple_list_response(request, e.data)) + except NameError: + raise ItemNotFound('Container does not exist') + except ValueError: + raise BadRequest('Invalid sharing header') + except QuotaError: + raise RequestEntityTooLarge('Quota exceeded') + if 'ETag' not in meta: + # Update the MD5 after the hashmap, as there may be missing hashes. + # TODO: This will create a new version, even if done synchronously... + etag = hashmap_md5(request, hashmap, size) + meta.update({'ETag': etag}) # Update ETag. + try: + version_id = request.backend.update_object_meta(request.user_uniq, + v_account, v_container, v_object, 'pithos', {'ETag': etag}, False) + except NotAllowedError: + raise Forbidden('Not allowed') + if public is not None: + try: + request.backend.update_object_public(request.user_uniq, v_account, + v_container, v_object, public) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + + response = HttpResponse(status=201) + response['ETag'] = meta['ETag'] + response['X-Object-Version'] = version_id + return response + +@api_method('POST') +def object_write_form(request, v_account, v_container, v_object): + # Normal Response Codes: 201 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + request.upload_handlers = [SaveToBackendHandler(request)] + if not request.FILES.has_key('X-Object-Data'): + raise BadRequest('Missing X-Object-Data field') + file = request.FILES['X-Object-Data'] + + meta = {} + meta['Content-Type'] = file.content_type + meta['ETag'] = file.etag + + try: + version_id = request.backend.update_object_hashmap(request.user_uniq, + v_account, v_container, v_object, file.size, file.hashmap, + 'pithos', meta, True) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + except QuotaError: + raise RequestEntityTooLarge('Quota exceeded') + + response = HttpResponse(status=201) + response['ETag'] = meta['ETag'] + response['X-Object-Version'] = version_id + response.content = meta['ETag'] + return response + +@api_method('COPY', format_allowed=True) +def object_copy(request, v_account, v_container, v_object): + # Normal Response Codes: 201 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + dest_account = request.META.get('HTTP_DESTINATION_ACCOUNT') + if not dest_account: + dest_account = request.user_uniq + dest_path = request.META.get('HTTP_DESTINATION') + if not dest_path: + raise BadRequest('Missing Destination header') + try: + dest_container, dest_name = split_container_object_string(dest_path) + except ValueError: + raise BadRequest('Invalid Destination header') + + # Evaluate conditions. + if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'): + src_version = request.META.get('HTTP_X_SOURCE_VERSION') + try: + meta = request.backend.get_object_meta(request.user_uniq, v_account, + v_container, v_object, 'pithos', src_version) + except NotAllowedError: + raise Forbidden('Not allowed') + except (NameError, IndexError): + raise ItemNotFound('Container or object does not exist') + validate_matching_preconditions(request, meta) + + version_id = copy_or_move_object(request, v_account, v_container, v_object, + dest_account, dest_container, dest_name, move=False) + response = HttpResponse(status=201) + response['X-Object-Version'] = version_id + return response + +@api_method('MOVE', format_allowed=True) +def object_move(request, v_account, v_container, v_object): + # Normal Response Codes: 201 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + dest_account = request.META.get('HTTP_DESTINATION_ACCOUNT') + if not dest_account: + dest_account = request.user_uniq + dest_path = request.META.get('HTTP_DESTINATION') + if not dest_path: + raise BadRequest('Missing Destination header') + try: + dest_container, dest_name = split_container_object_string(dest_path) + except ValueError: + raise BadRequest('Invalid Destination header') + + # Evaluate conditions. + if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'): + try: + meta = request.backend.get_object_meta(request.user_uniq, v_account, + v_container, v_object, 'pithos') + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container or object does not exist') + validate_matching_preconditions(request, meta) + + version_id = copy_or_move_object(request, v_account, v_container, v_object, + dest_account, dest_container, dest_name, move=True) + response = HttpResponse(status=201) + response['X-Object-Version'] = version_id + return response + +@api_method('POST', format_allowed=True) +def object_update(request, v_account, v_container, v_object): + # Normal Response Codes: 202, 204 + # Error Response Codes: internalServerError (500), + # conflict (409), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + meta, permissions, public = get_object_headers(request) + content_type = meta.get('Content-Type') + if content_type: + del(meta['Content-Type']) # Do not allow changing the Content-Type. + + try: + prev_meta = request.backend.get_object_meta(request.user_uniq, v_account, + v_container, v_object, 'pithos') + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + + # Evaluate conditions. + if request.META.get('HTTP_IF_MATCH') or request.META.get('HTTP_IF_NONE_MATCH'): + validate_matching_preconditions(request, prev_meta) + + # If replacing, keep previous values of 'Content-Type' and 'ETag'. + replace = True + if 'update' in request.GET: + replace = False + if replace: + for k in ('Content-Type', 'ETag'): + if k in prev_meta: + meta[k] = prev_meta[k] + + # A Content-Type or X-Source-Object header indicates data updates. + src_object = request.META.get('HTTP_X_SOURCE_OBJECT') + if (not content_type or content_type != 'application/octet-stream') and not src_object: + response = HttpResponse(status=202) + + # Do permissions first, as it may fail easier. + if permissions is not None: + try: + request.backend.update_object_permissions(request.user_uniq, + v_account, v_container, v_object, permissions) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + except ValueError: + raise BadRequest('Invalid sharing header') + if public is not None: + try: + request.backend.update_object_public(request.user_uniq, v_account, + v_container, v_object, public) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + if meta or replace: + try: + version_id = request.backend.update_object_meta(request.user_uniq, + v_account, v_container, v_object, 'pithos', meta, replace) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + response['X-Object-Version'] = version_id + + return response + + # Single range update. Range must be in Content-Range. + # Based on: http://code.google.com/p/gears/wiki/ContentRangePostProposal + # (with the addition that '*' is allowed for the range - will append). + content_range = request.META.get('HTTP_CONTENT_RANGE') + if not content_range: + raise BadRequest('Missing Content-Range header') + ranges = get_content_range(request) + if not ranges: + raise RangeNotSatisfiable('Invalid Content-Range header') + + try: + size, hashmap = request.backend.get_object_hashmap(request.user_uniq, + v_account, v_container, v_object) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + + offset, length, total = ranges + if offset is None: + offset = size + elif offset > size: + raise RangeNotSatisfiable('Supplied offset is beyond object limits') + if src_object: + src_account = request.META.get('HTTP_X_SOURCE_ACCOUNT') + if not src_account: + src_account = request.user_uniq + src_container, src_name = split_container_object_string(src_object) + src_version = request.META.get('HTTP_X_SOURCE_VERSION') + try: + src_size, src_hashmap = request.backend.get_object_hashmap(request.user_uniq, + src_account, src_container, src_name, src_version) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Source object does not exist') + + if length is None: + length = src_size + elif length > src_size: + raise BadRequest('Object length is smaller than range length') + else: + # Require either a Content-Length, or 'chunked' Transfer-Encoding. + content_length = -1 + if request.META.get('HTTP_TRANSFER_ENCODING') != 'chunked': + content_length = get_content_length(request) + + if length is None: + length = content_length + else: + if content_length == -1: + # TODO: Get up to length bytes in chunks. + length = content_length + elif length != content_length: + raise BadRequest('Content length does not match range length') + if total is not None and (total != size or offset >= size or (length > 0 and offset + length >= size)): + raise RangeNotSatisfiable('Supplied range will change provided object limits') + + dest_bytes = request.META.get('HTTP_X_OBJECT_BYTES') + if dest_bytes is not None: + dest_bytes = get_int_parameter(dest_bytes) + if dest_bytes is None: + raise BadRequest('Invalid X-Object-Bytes header') + + if src_object: + if offset % request.backend.block_size == 0: + # Update the hashes only. + sbi = 0 + while length > 0: + bi = int(offset / request.backend.block_size) + bl = min(length, request.backend.block_size) + if bi < len(hashmap): + if bl == request.backend.block_size: + hashmap[bi] = src_hashmap[sbi] + else: + data = request.backend.get_block(src_hashmap[sbi]) + hashmap[bi] = request.backend.update_block(hashmap[bi], + data[:bl], 0) + else: + hashmap.append(src_hashmap[sbi]) + offset += bl + length -= bl + sbi += 1 + else: + data = '' + sbi = 0 + while length > 0: + data += request.backend.get_block(src_hashmap[sbi]) + if length < request.backend.block_size: + data = data[:length] + bytes = put_object_block(request, hashmap, data, offset) + offset += bytes + data = data[bytes:] + length -= bytes + sbi += 1 + else: + data = '' + for d in socket_read_iterator(request, length, + request.backend.block_size): + # TODO: Raise 408 (Request Timeout) if this takes too long. + # TODO: Raise 499 (Client Disconnect) if a length is defined and we stop before getting this much data. + data += d + bytes = put_object_block(request, hashmap, data, offset) + offset += bytes + data = data[bytes:] + if len(data) > 0: + put_object_block(request, hashmap, data, offset) + + if offset > size: + size = offset + if dest_bytes is not None and dest_bytes < size: + size = dest_bytes + hashmap = hashmap[:(int((size - 1) / request.backend.block_size) + 1)] + meta.update({'ETag': hashmap_md5(request, hashmap, size)}) # Update ETag. + try: + version_id = request.backend.update_object_hashmap(request.user_uniq, + v_account, v_container, v_object, size, hashmap, + 'pithos', meta, replace, permissions) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Container does not exist') + except ValueError: + raise BadRequest('Invalid sharing header') + except QuotaError: + raise RequestEntityTooLarge('Quota exceeded') + if public is not None: + try: + request.backend.update_object_public(request.user_uniq, v_account, + v_container, v_object, public) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + + response = HttpResponse(status=204) + response['ETag'] = meta['ETag'] + response['X-Object-Version'] = version_id + return response + +@api_method('DELETE') +def object_delete(request, v_account, v_container, v_object): + # Normal Response Codes: 204 + # Error Response Codes: internalServerError (500), + # itemNotFound (404), + # forbidden (403), + # badRequest (400) + + until = get_int_parameter(request.GET.get('until')) + try: + request.backend.delete_object(request.user_uniq, v_account, v_container, + v_object, until) + except NotAllowedError: + raise Forbidden('Not allowed') + except NameError: + raise ItemNotFound('Object does not exist') + return HttpResponse(status=204) + +@api_method() +def method_not_allowed(request): + raise BadRequest('Method not allowed')