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# Copyright (C) 2016-2020 RhodeCode GmbH
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License, version 3
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# (only), as published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# This program is dual-licensed. If you wish to learn more about the
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# RhodeCode Enterprise Edition, including its added features, Support services,
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# and proprietary license terms, please see https://rhodecode.com/licenses/
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import logging
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from pyramid.response import FileResponse
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from pyramid.httpexceptions import HTTPFound, HTTPNotFound
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from rhodecode.apps._base import BaseAppView
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from rhodecode.apps.file_store import utils
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from rhodecode.apps.file_store.exceptions import (
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FileNotAllowedException, FileOverSizeException)
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from rhodecode.lib import helpers as h
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from rhodecode.lib import audit_logger
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from rhodecode.lib.auth import (
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CSRFRequired, NotAnonymous, HasRepoPermissionAny, HasRepoGroupPermissionAny,
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LoginRequired)
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from rhodecode.lib.vcs.conf.mtypes import get_mimetypes_db
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from rhodecode.model.db import Session, FileStore, UserApiKeys
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log = logging.getLogger(__name__)
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class FileStoreView(BaseAppView):
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upload_key = 'store_file'
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def load_default_context(self):
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c = self._get_local_tmpl_context()
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self.storage = utils.get_file_storage(self.request.registry.settings)
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return c
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def _guess_type(self, file_name):
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"""
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Our own type guesser for mimetypes using the rich DB
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"""
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if not hasattr(self, 'db'):
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self.db = get_mimetypes_db()
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_content_type, _encoding = self.db.guess_type(file_name, strict=False)
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return _content_type, _encoding
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def _serve_file(self, file_uid):
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if not self.storage.exists(file_uid):
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store_path = self.storage.store_path(file_uid)
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log.debug('File with FID:%s not found in the store under `%s`',
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file_uid, store_path)
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raise HTTPNotFound()
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db_obj = FileStore.get_by_store_uid(file_uid, safe=True)
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if not db_obj:
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raise HTTPNotFound()
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# private upload for user
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if db_obj.check_acl and db_obj.scope_user_id:
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log.debug('Artifact: checking scope access for bound artifact user: `%s`',
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db_obj.scope_user_id)
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user = db_obj.user
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if self._rhodecode_db_user.user_id != user.user_id:
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log.warning('Access to file store object forbidden')
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raise HTTPNotFound()
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# scoped to repository permissions
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if db_obj.check_acl and db_obj.scope_repo_id:
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log.debug('Artifact: checking scope access for bound artifact repo: `%s`',
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db_obj.scope_repo_id)
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repo = db_obj.repo
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perm_set = ['repository.read', 'repository.write', 'repository.admin']
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has_perm = HasRepoPermissionAny(*perm_set)(repo.repo_name, 'FileStore check')
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if not has_perm:
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log.warning('Access to file store object `%s` forbidden', file_uid)
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raise HTTPNotFound()
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# scoped to repository group permissions
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if db_obj.check_acl and db_obj.scope_repo_group_id:
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log.debug('Artifact: checking scope access for bound artifact repo group: `%s`',
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db_obj.scope_repo_group_id)
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repo_group = db_obj.repo_group
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perm_set = ['group.read', 'group.write', 'group.admin']
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has_perm = HasRepoGroupPermissionAny(*perm_set)(repo_group.group_name, 'FileStore check')
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if not has_perm:
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log.warning('Access to file store object `%s` forbidden', file_uid)
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raise HTTPNotFound()
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FileStore.bump_access_counter(file_uid)
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file_path = self.storage.store_path(file_uid)
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content_type = 'application/octet-stream'
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content_encoding = None
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_content_type, _encoding = self._guess_type(file_path)
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if _content_type:
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content_type = _content_type
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# For file store we don't submit any session data, this logic tells the
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# Session lib to skip it
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setattr(self.request, '_file_response', True)
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response = FileResponse(
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file_path, request=self.request,
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content_type=content_type, content_encoding=content_encoding)
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file_name = db_obj.file_display_name
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response.headers["Content-Disposition"] = (
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'attachment; filename="{}"'.format(str(file_name))
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)
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response.headers["X-RC-Artifact-Id"] = str(db_obj.file_store_id)
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response.headers["X-RC-Artifact-Desc"] = str(db_obj.file_description)
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response.headers["X-RC-Artifact-Sha256"] = str(db_obj.file_hash)
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return response
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@LoginRequired()
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@NotAnonymous()
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@CSRFRequired()
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def upload_file(self):
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self.load_default_context()
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file_obj = self.request.POST.get(self.upload_key)
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if file_obj is None:
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return {'store_fid': None,
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'access_path': None,
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'error': '{} data field is missing'.format(self.upload_key)}
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if not hasattr(file_obj, 'filename'):
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return {'store_fid': None,
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'access_path': None,
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'error': 'filename cannot be read from the data field'}
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filename = file_obj.filename
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metadata = {
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'user_uploaded': {'username': self._rhodecode_user.username,
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'user_id': self._rhodecode_user.user_id,
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'ip': self._rhodecode_user.ip_addr}}
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try:
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store_uid, metadata = self.storage.save_file(
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file_obj.file, filename, extra_metadata=metadata)
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except FileNotAllowedException:
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return {'store_fid': None,
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'access_path': None,
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'error': 'File {} is not allowed.'.format(filename)}
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except FileOverSizeException:
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return {'store_fid': None,
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'access_path': None,
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'error': 'File {} is exceeding allowed limit.'.format(filename)}
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try:
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entry = FileStore.create(
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file_uid=store_uid, filename=metadata["filename"],
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file_hash=metadata["sha256"], file_size=metadata["size"],
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file_description=u'upload attachment',
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check_acl=False, user_id=self._rhodecode_user.user_id
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)
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Session().add(entry)
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Session().commit()
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log.debug('Stored upload in DB as %s', entry)
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except Exception:
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log.exception('Failed to store file %s', filename)
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return {'store_fid': None,
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'access_path': None,
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'error': 'File {} failed to store in DB.'.format(filename)}
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return {'store_fid': store_uid,
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'access_path': h.route_path('download_file', fid=store_uid)}
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# ACL is checked by scopes, if no scope the file is accessible to all
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def download_file(self):
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self.load_default_context()
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file_uid = self.request.matchdict['fid']
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log.debug('Requesting FID:%s from store %s', file_uid, self.storage)
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return self._serve_file(file_uid)
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# in addition to @LoginRequired ACL is checked by scopes
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@LoginRequired(auth_token_access=[UserApiKeys.ROLE_ARTIFACT_DOWNLOAD])
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@NotAnonymous()
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def download_file_by_token(self):
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"""
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Special view that allows to access the download file by special URL that
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is stored inside the URL.
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http://example.com/_file_store/token-download/TOKEN/FILE_UID
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"""
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self.load_default_context()
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file_uid = self.request.matchdict['fid']
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return self._serve_file(file_uid)
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