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# -*- coding: utf-8 -*-
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# Copyright (C) 2010-2018 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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"""
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SimpleHG middleware for handling mercurial protocol request
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(push/clone etc.). It's implemented with basic auth function
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"""
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import logging
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import urlparse
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import urllib
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from rhodecode.lib import utils
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from rhodecode.lib.ext_json import json
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from rhodecode.lib.middleware import simplevcs
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log = logging.getLogger(__name__)
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class SimpleHg(simplevcs.SimpleVCS):
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SCM = 'hg'
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def _get_repository_name(self, environ):
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"""
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Gets repository name out of PATH_INFO header
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:param environ: environ where PATH_INFO is stored
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"""
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return environ['PATH_INFO'].strip('/')
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_ACTION_MAPPING = {
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'changegroup': 'pull',
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'changegroupsubset': 'pull',
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'getbundle': 'pull',
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'stream_out': 'pull',
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'listkeys': 'pull',
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'between': 'pull',
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'branchmap': 'pull',
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'branches': 'pull',
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'clonebundles': 'pull',
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'capabilities': 'pull',
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'debugwireargs': 'pull',
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'heads': 'pull',
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'lookup': 'pull',
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'hello': 'pull',
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'known': 'pull',
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# largefiles
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'putlfile': 'push',
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'getlfile': 'pull',
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'statlfile': 'pull',
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'lheads': 'pull',
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'unbundle': 'push',
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'pushkey': 'push',
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}
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@classmethod
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def _get_xarg_headers(cls, environ):
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i = 1
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chunks = [] # gather chunks stored in multiple 'hgarg_N'
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while True:
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head = environ.get('HTTP_X_HGARG_{}'.format(i))
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if not head:
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break
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i += 1
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chunks.append(urllib.unquote_plus(head))
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full_arg = ''.join(chunks)
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pref = 'cmds='
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if full_arg.startswith(pref):
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# strip the cmds= header defining our batch commands
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full_arg = full_arg[len(pref):]
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cmds = full_arg.split(';')
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return cmds
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@classmethod
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def _get_batch_cmd(cls, environ):
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"""
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Handle batch command send commands. Those are ';' separated commands
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sent by batch command that server needs to execute. We need to extract
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those, and map them to our ACTION_MAPPING to get all push/pull commands
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specified in the batch
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"""
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default = 'push'
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batch_cmds = []
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try:
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cmds = cls._get_xarg_headers(environ)
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for pair in cmds:
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parts = pair.split(' ', 1)
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if len(parts) != 2:
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continue
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# entry should be in a format `key ARGS`
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cmd, args = parts
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action = cls._ACTION_MAPPING.get(cmd, default)
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batch_cmds.append(action)
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except Exception:
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log.exception('Failed to extract batch commands operations')
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# in case we failed, (e.g malformed data) assume it's PUSH sub-command
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# for safety
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return batch_cmds or [default]
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def _get_action(self, environ):
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"""
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Maps mercurial request commands into a pull or push command.
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In case of unknown/unexpected data, it returns 'push' to be safe.
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:param environ:
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"""
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default = 'push'
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query = urlparse.parse_qs(environ['QUERY_STRING'],
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keep_blank_values=True)
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if 'cmd' in query:
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cmd = query['cmd'][0]
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if cmd == 'batch':
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cmds = self._get_batch_cmd(environ)
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if 'push' in cmds:
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return 'push'
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else:
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return 'pull'
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return self._ACTION_MAPPING.get(cmd, default)
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return default
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def _create_wsgi_app(self, repo_path, repo_name, config):
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return self.scm_app.create_hg_wsgi_app(
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repo_path, repo_name, config)
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def _create_config(self, extras, repo_name):
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config = utils.make_db_config(repo=repo_name)
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config.set('rhodecode', 'RC_SCM_DATA', json.dumps(extras))
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return config.serialize()
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