setup.py 6.9 KB
Newer Older
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
# Copyright (C) 2015 GRNET S.A.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

16
17
18
19
import os
import threading
import logging

20
from agkyra.syncer.utils import join_path, ThreadSafeDict
21
from agkyra.syncer.database import SqliteFileStateDB
22
from agkyra.syncer.messaging import Messager
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
23
from agkyra.syncer import utils
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

from kamaki.clients import ClientError

from kamaki.clients.astakos import AstakosClient
from kamaki.clients.pithos import PithosClient
from kamaki.clients.utils import https

logger = logging.getLogger(__name__)


DEFAULT_CACHE_NAME = '.agkyra_cache'
DEFAULT_CACHE_HIDE_NAME = 'hidden'
DEFAULT_CACHE_STAGE_NAME = 'staged'
DEFAULT_CACHE_FETCH_NAME = 'fetched'
GLOBAL_SETTINGS_NAME = '.agkyra'
DEFAULT_DBNAME = "syncer.db"
DEFAULT_ACTION_MAX_WAIT = 10
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
41
42
DEFAULT_PITHOS_LIST_INTERVAL = 5
DEFAULT_CONNECTION_RETRY_LIMIT = 3
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
43
INSTANCES_NAME = 'instances'
44
45
46
47

thread_local_data = threading.local()


Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
48
49
50
51
52
def get_instance(elems):
    data = "".join(elems)
    return utils.hash_string(data)


53
class SyncerSettings():
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
54
    def __init__(self, auth_url, auth_token, container, local_root_path,
55
                 *args, **kwargs):
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
56
        self.auth_url = utils.normalize_standard_suffix(auth_url)
57
        self.auth_token = auth_token
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
58
        self.container = utils.normalize_standard_suffix(container)
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
59
60
61
62

        self.ignore_ssl = kwargs.get("ignore_ssl", False)
        if self.ignore_ssl:
            https.patch_ignore_ssl()
63
64
65
        elif kwargs.get('ca_certs', None):
            https.patch_with_certs(kwargs['ca_certs'])

66
67
68
        self.endpoint = self._get_pithos_client(
            auth_url, auth_token, container)

69
70
71
        home_dir = os.path.expanduser('~')
        default_settings_path = join_path(home_dir, GLOBAL_SETTINGS_NAME)
        self.settings_path = kwargs.get("agkyra_path", default_settings_path)
72
        self.create_dir(self.settings_path)
73

Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
74
75
76
77
78
79
80
81
82
83
84
        self.instances_path = join_path(self.settings_path, INSTANCES_NAME)
        self.create_dir(self.instances_path)

        self.local_root_path = utils.normalize_local_suffix(local_root_path)
        self.create_dir(self.local_root_path)

        self.user_id = self.endpoint.account
        self.instance = get_instance(
            [self.auth_url, self.user_id,
             self.container, self.local_root_path])
        self.instance_path = join_path(self.instances_path, self.instance)
85
86
87
88
89
90
        self.create_dir(self.instance_path)

        self.dbname = kwargs.get("dbname", DEFAULT_DBNAME)
        self.full_dbname = join_path(self.instance_path, self.dbname)
        self.get_db(initialize=True)

91
        self.cache_name = kwargs.get("cache_name", DEFAULT_CACHE_NAME)
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
        self.cache_path = join_path(self.local_root_path, self.cache_name)
        self.create_dir(self.cache_path)

        self.cache_hide_name = kwargs.get("cache_hide_name",
                                          DEFAULT_CACHE_HIDE_NAME)
        self.cache_hide_path = join_path(self.cache_path, self.cache_hide_name)
        self.create_dir(self.cache_hide_path)

        self.cache_stage_name = kwargs.get("cache_stage_name",
                                           DEFAULT_CACHE_STAGE_NAME)
        self.cache_stage_path = join_path(self.cache_path,
                                          self.cache_stage_name)
        self.create_dir(self.cache_stage_path)

        self.cache_fetch_name = kwargs.get("cache_fetch_name",
                                           DEFAULT_CACHE_FETCH_NAME)
        self.cache_fetch_path = join_path(self.cache_path,
                                          self.cache_fetch_name)
        self.create_dir(self.cache_fetch_path)

112
        self.heartbeat = ThreadSafeDict()
113
114
        self.action_max_wait = kwargs.get("action_max_wait",
                                          DEFAULT_ACTION_MAX_WAIT)
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
115
116
117
118
119
120
121
        self.pithos_list_interval = kwargs.get("pithos_list_interval",
                                               DEFAULT_PITHOS_LIST_INTERVAL)

        self.connection_retry_limit = kwargs.get(
            "connection_retry_limit", DEFAULT_CONNECTION_RETRY_LIMIT)
        self.endpoint.CONNECTION_RETRY_LIMIT = self.connection_retry_limit

122
        self.messager = Messager()
123

124
125
126
127
128
129
130
131
132
        self.mtime_lag = self.determine_mtime_lag()

    def determine_mtime_lag(self):
        st = os.stat(self.cache_path)
        mtime = st.st_mtime
        if mtime.is_integer():
            return 1.1
        return 0

133
134
135
136
137
138
139
140
    def get_db(self, initialize=False):
        dbs = getattr(thread_local_data, "dbs", None)
        if dbs is not None:
            db = dbs.get(self.full_dbname)
        else:
            db = None

        if db is None:
Giorgos Korfiatis's avatar
Giorgos Korfiatis committed
141
142
            logger.debug("Connecting db: '%s', thread: %s" %
                         (self.full_dbname, threading.current_thread().ident))
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
            db = SqliteFileStateDB(self.full_dbname, initialize=initialize)
            if dbs is None:
                thread_local_data.dbs = {}
            thread_local_data.dbs[self.full_dbname] = db
        return db

    def create_dir(self, path):
        if os.path.exists(path):
            if os.path.isdir(path):
                return
            raise Exception("Cannot create dir '%s'; file exists" % path)
        logger.warning("Creating dir: '%s'" % path)
        os.mkdir(path)
        return path

    def _get_pithos_client(self, auth_url, token, container):
        try:
            astakos = AstakosClient(auth_url, token)
        except ClientError:
            logger.error("Failed to authenticate user token")
            raise
        try:
            PITHOS_URL = astakos.get_endpoint_url(PithosClient.service_type)
        except ClientError:
            logger.error("Failed to get endpoints for Pithos")
            raise
        try:
            account = astakos.user_info['id']
171
            client = PithosClient(PITHOS_URL, token, account, container)
172
173
174
        except ClientError:
            logger.error("Failed to initialize Pithos client")
            raise
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
        try:
            client.get_container_info(container)
        except ClientError as e:
            if e.status == 404:
                logger.warning("Container '%s' does not exist, creating..."
                               % container)
                try:
                    client.create_container(container)
                except ClientError:
                    logger.error("Failed to create container '%s'" % container)
                    raise
            else:
                raise

        return client