root / pithos / backends / simple.py @ 2f51ce47
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1 | 5635f9ef | Antony Chazapis | # Copyright 2011 GRNET S.A. All rights reserved.
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2 | 5635f9ef | Antony Chazapis | #
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3 | 5635f9ef | Antony Chazapis | # Redistribution and use in source and binary forms, with or
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4 | 5635f9ef | Antony Chazapis | # without modification, are permitted provided that the following
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5 | 5635f9ef | Antony Chazapis | # conditions are met:
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6 | 5635f9ef | Antony Chazapis | #
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7 | 5635f9ef | Antony Chazapis | # 1. Redistributions of source code must retain the above
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8 | 5635f9ef | Antony Chazapis | # copyright notice, this list of conditions and the following
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9 | 5635f9ef | Antony Chazapis | # disclaimer.
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10 | 5635f9ef | Antony Chazapis | #
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11 | 5635f9ef | Antony Chazapis | # 2. Redistributions in binary form must reproduce the above
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12 | 5635f9ef | Antony Chazapis | # copyright notice, this list of conditions and the following
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13 | 5635f9ef | Antony Chazapis | # disclaimer in the documentation and/or other materials
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14 | 5635f9ef | Antony Chazapis | # provided with the distribution.
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15 | 5635f9ef | Antony Chazapis | #
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16 | 5635f9ef | Antony Chazapis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | 5635f9ef | Antony Chazapis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | 5635f9ef | Antony Chazapis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | 5635f9ef | Antony Chazapis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | 5635f9ef | Antony Chazapis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | 5635f9ef | Antony Chazapis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | 5635f9ef | Antony Chazapis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | 5635f9ef | Antony Chazapis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | 5635f9ef | Antony Chazapis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | 5635f9ef | Antony Chazapis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | 5635f9ef | Antony Chazapis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | 5635f9ef | Antony Chazapis | # POSSIBILITY OF SUCH DAMAGE.
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28 | 5635f9ef | Antony Chazapis | #
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29 | 5635f9ef | Antony Chazapis | # The views and conclusions contained in the software and
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30 | 5635f9ef | Antony Chazapis | # documentation are those of the authors and should not be
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31 | 5635f9ef | Antony Chazapis | # interpreted as representing official policies, either expressed
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32 | 5635f9ef | Antony Chazapis | # or implied, of GRNET S.A.
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33 | 5635f9ef | Antony Chazapis | |
34 | b956618e | Antony Chazapis | import os |
35 | b956618e | Antony Chazapis | import time |
36 | b956618e | Antony Chazapis | import sqlite3 |
37 | b956618e | Antony Chazapis | import logging |
38 | b956618e | Antony Chazapis | import types |
39 | b956618e | Antony Chazapis | import hashlib |
40 | b956618e | Antony Chazapis | import shutil |
41 | 22dab079 | Antony Chazapis | import pickle |
42 | b956618e | Antony Chazapis | |
43 | cca6c617 | Antony Chazapis | from base import NotAllowedError, BaseBackend |
44 | b956618e | Antony Chazapis | |
45 | b956618e | Antony Chazapis | |
46 | b956618e | Antony Chazapis | logger = logging.getLogger(__name__) |
47 | b956618e | Antony Chazapis | |
48 | b956618e | Antony Chazapis | |
49 | b956618e | Antony Chazapis | class SimpleBackend(BaseBackend): |
50 | 22dab079 | Antony Chazapis | """A simple backend.
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51 | 22dab079 | Antony Chazapis |
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52 | 22dab079 | Antony Chazapis | Uses SQLite for storage.
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53 | 22dab079 | Antony Chazapis | """
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54 | 22dab079 | Antony Chazapis | |
55 | 58a6c894 | Antony Chazapis | # TODO: Automatic/manual clean-up after a time interval.
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56 | 58a6c894 | Antony Chazapis | |
57 | 22dab079 | Antony Chazapis | def __init__(self, db): |
58 | 22dab079 | Antony Chazapis | self.hash_algorithm = 'sha1' |
59 | 22dab079 | Antony Chazapis | self.block_size = 128 * 1024 # 128KB |
60 | b956618e | Antony Chazapis | |
61 | 3ab38c43 | Antony Chazapis | self.default_policy = {'quota': 0, 'versioning': 'auto'} |
62 | 3ab38c43 | Antony Chazapis | |
63 | 22dab079 | Antony Chazapis | basepath = os.path.split(db)[0]
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64 | 22dab079 | Antony Chazapis | if basepath and not os.path.exists(basepath): |
65 | b956618e | Antony Chazapis | os.makedirs(basepath) |
66 | 22dab079 | Antony Chazapis | |
67 | 49350be7 | Giorgos Verigakis | self.con = sqlite3.connect(db, check_same_thread=False) |
68 | 84846143 | Antony Chazapis | |
69 | 84846143 | Antony Chazapis | sql = '''pragma foreign_keys = on'''
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70 | 84846143 | Antony Chazapis | self.con.execute(sql)
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71 | 84846143 | Antony Chazapis | |
72 | 58a6c894 | Antony Chazapis | sql = '''create table if not exists versions (
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73 | 58a6c894 | Antony Chazapis | version_id integer primary key,
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74 | 58a6c894 | Antony Chazapis | name text,
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75 | 104626e3 | Antony Chazapis | user text,
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76 | 84846143 | Antony Chazapis | tstamp integer not null,
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77 | 58a6c894 | Antony Chazapis | size integer default 0,
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78 | 58a6c894 | Antony Chazapis | hide integer default 0)'''
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79 | b956618e | Antony Chazapis | self.con.execute(sql)
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80 | b956618e | Antony Chazapis | sql = '''create table if not exists metadata (
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81 | 84846143 | Antony Chazapis | version_id integer,
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82 | 84846143 | Antony Chazapis | key text,
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83 | 84846143 | Antony Chazapis | value text,
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84 | 84846143 | Antony Chazapis | primary key (version_id, key)
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85 | 84846143 | Antony Chazapis | foreign key (version_id) references versions(version_id)
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86 | 84846143 | Antony Chazapis | on delete cascade)'''
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87 | 84846143 | Antony Chazapis | self.con.execute(sql)
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88 | 84846143 | Antony Chazapis | sql = '''create table if not exists hashmaps (
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89 | 84846143 | Antony Chazapis | version_id integer,
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90 | 84846143 | Antony Chazapis | pos integer,
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91 | 84846143 | Antony Chazapis | block_id text,
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92 | 84846143 | Antony Chazapis | primary key (version_id, pos)
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93 | 84846143 | Antony Chazapis | foreign key (version_id) references versions(version_id)
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94 | 84846143 | Antony Chazapis | on delete cascade)'''
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95 | 22dab079 | Antony Chazapis | self.con.execute(sql)
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96 | 22dab079 | Antony Chazapis | sql = '''create table if not exists blocks (
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97 | 22dab079 | Antony Chazapis | block_id text, data blob, primary key (block_id))'''
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98 | 22dab079 | Antony Chazapis | self.con.execute(sql)
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99 | 84846143 | Antony Chazapis | |
100 | 84846143 | Antony Chazapis | sql = '''create table if not exists policy (
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101 | 84846143 | Antony Chazapis | name text, key text, value text, primary key (name, key))'''
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102 | b956618e | Antony Chazapis | self.con.execute(sql)
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103 | 84846143 | Antony Chazapis | |
104 | 02c0c3fa | Antony Chazapis | sql = '''create table if not exists groups (
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105 | 02c0c3fa | Antony Chazapis | account text, name text, users text, primary key (account, name))'''
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106 | 02c0c3fa | Antony Chazapis | self.con.execute(sql)
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107 | 3436eeb0 | Antony Chazapis | sql = '''create table if not exists permissions (
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108 | 3436eeb0 | Antony Chazapis | name text, read text, write text, primary key (name))'''
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109 | 3436eeb0 | Antony Chazapis | self.con.execute(sql)
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110 | e0f916bb | Antony Chazapis | sql = '''create table if not exists public (
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111 | e0f916bb | Antony Chazapis | name text, primary key (name))'''
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112 | 02c0c3fa | Antony Chazapis | self.con.execute(sql)
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113 | b956618e | Antony Chazapis | self.con.commit()
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114 | b956618e | Antony Chazapis | |
115 | 83dd59c5 | Antony Chazapis | def get_account_meta(self, user, account, until=None): |
116 | b956618e | Antony Chazapis | """Return a dictionary with the account metadata."""
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117 | b956618e | Antony Chazapis | |
118 | 58a6c894 | Antony Chazapis | logger.debug("get_account_meta: %s %s", account, until)
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119 | cca6c617 | Antony Chazapis | if user != account:
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120 | cca6c617 | Antony Chazapis | raise NotAllowedError
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121 | 58a6c894 | Antony Chazapis | try:
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122 | 58a6c894 | Antony Chazapis | version_id, mtime = self._get_accountinfo(account, until)
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123 | 58a6c894 | Antony Chazapis | except NameError: |
124 | 58a6c894 | Antony Chazapis | version_id = None
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125 | 60be837c | Antony Chazapis | mtime = 0
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126 | 58a6c894 | Antony Chazapis | count, bytes, tstamp = self._get_pathstats(account, until) |
127 | 31a1c80d | Antony Chazapis | if mtime > tstamp:
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128 | 31a1c80d | Antony Chazapis | tstamp = mtime |
129 | 58a6c894 | Antony Chazapis | if until is None: |
130 | 58a6c894 | Antony Chazapis | modified = tstamp |
131 | 58a6c894 | Antony Chazapis | else:
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132 | 58a6c894 | Antony Chazapis | modified = self._get_pathstats(account)[2] # Overall last modification |
133 | 31a1c80d | Antony Chazapis | if mtime > modified:
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134 | 31a1c80d | Antony Chazapis | modified = mtime |
135 | 22dab079 | Antony Chazapis | |
136 | 22dab079 | Antony Chazapis | # Proper count.
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137 | 58a6c894 | Antony Chazapis | sql = 'select count(name) from (%s) where name glob ? and not name glob ?'
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138 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
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139 | 22dab079 | Antony Chazapis | c = self.con.execute(sql, (account + '/*', account + '/*/*')) |
140 | 22dab079 | Antony Chazapis | row = c.fetchone() |
141 | 22dab079 | Antony Chazapis | count = row[0]
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142 | 22dab079 | Antony Chazapis | |
143 | 58a6c894 | Antony Chazapis | meta = self._get_metadata(account, version_id)
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144 | 22dab079 | Antony Chazapis | meta.update({'name': account, 'count': count, 'bytes': bytes}) |
145 | 58a6c894 | Antony Chazapis | if modified:
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146 | 58a6c894 | Antony Chazapis | meta.update({'modified': modified})
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147 | 58a6c894 | Antony Chazapis | if until is not None: |
148 | 58a6c894 | Antony Chazapis | meta.update({'until_timestamp': tstamp})
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149 | b956618e | Antony Chazapis | return meta
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150 | b956618e | Antony Chazapis | |
151 | 83dd59c5 | Antony Chazapis | def update_account_meta(self, user, account, meta, replace=False): |
152 | b956618e | Antony Chazapis | """Update the metadata associated with the account."""
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153 | b956618e | Antony Chazapis | |
154 | 22dab079 | Antony Chazapis | logger.debug("update_account_meta: %s %s %s", account, meta, replace)
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155 | cca6c617 | Antony Chazapis | if user != account:
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156 | cca6c617 | Antony Chazapis | raise NotAllowedError
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157 | 104626e3 | Antony Chazapis | self._put_metadata(user, account, meta, replace)
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158 | 58a6c894 | Antony Chazapis | |
159 | 02c0c3fa | Antony Chazapis | def get_account_groups(self, user, account): |
160 | 02c0c3fa | Antony Chazapis | """Return a dictionary with the user groups defined for this account."""
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161 | 58a6c894 | Antony Chazapis | |
162 | 02c0c3fa | Antony Chazapis | logger.debug("get_account_groups: %s", account)
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163 | cca6c617 | Antony Chazapis | if user != account:
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164 | cca6c617 | Antony Chazapis | raise NotAllowedError
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165 | 02c0c3fa | Antony Chazapis | return self._get_groups(account) |
166 | b956618e | Antony Chazapis | |
167 | 02c0c3fa | Antony Chazapis | def update_account_groups(self, user, account, groups, replace=False): |
168 | 02c0c3fa | Antony Chazapis | """Update the groups associated with the account."""
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169 | b956618e | Antony Chazapis | |
170 | 02c0c3fa | Antony Chazapis | logger.debug("update_account_groups: %s %s %s", account, groups, replace)
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171 | cca6c617 | Antony Chazapis | if user != account:
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172 | cca6c617 | Antony Chazapis | raise NotAllowedError
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173 | 02c0c3fa | Antony Chazapis | for k, v in groups.iteritems(): |
174 | 02c0c3fa | Antony Chazapis | if True in [False or ',' in x for x in v]: |
175 | 02c0c3fa | Antony Chazapis | raise ValueError('Bad characters in groups') |
176 | 02c0c3fa | Antony Chazapis | if replace:
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177 | 02c0c3fa | Antony Chazapis | sql = 'delete from groups where account = ?'
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178 | 02c0c3fa | Antony Chazapis | self.con.execute(sql, (account,))
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179 | 02c0c3fa | Antony Chazapis | for k, v in groups.iteritems(): |
180 | 02c0c3fa | Antony Chazapis | if len(v) == 0: |
181 | 02c0c3fa | Antony Chazapis | if not replace: |
182 | 02c0c3fa | Antony Chazapis | sql = 'delete from groups where account = ? and name = ?'
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183 | 02c0c3fa | Antony Chazapis | self.con.execute(sql, (account, k))
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184 | 02c0c3fa | Antony Chazapis | else:
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185 | 02c0c3fa | Antony Chazapis | sql = 'insert or replace into groups (account, name, users) values (?, ?, ?)'
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186 | 02c0c3fa | Antony Chazapis | self.con.execute(sql, (account, k, ','.join(v))) |
187 | 02c0c3fa | Antony Chazapis | self.con.commit()
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188 | b956618e | Antony Chazapis | |
189 | 84846143 | Antony Chazapis | def put_account(self, user, account): |
190 | 84846143 | Antony Chazapis | """Create a new account with the given name."""
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191 | 84846143 | Antony Chazapis | |
192 | 84846143 | Antony Chazapis | logger.debug("put_account: %s", account)
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193 | 84846143 | Antony Chazapis | if user != account:
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194 | 84846143 | Antony Chazapis | raise NotAllowedError
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195 | 84846143 | Antony Chazapis | try:
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196 | 84846143 | Antony Chazapis | version_id, mtime = self._get_accountinfo(account)
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197 | 84846143 | Antony Chazapis | except NameError: |
198 | 84846143 | Antony Chazapis | pass
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199 | 84846143 | Antony Chazapis | else:
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200 | 84846143 | Antony Chazapis | raise NameError('Account already exists') |
201 | 84846143 | Antony Chazapis | version_id = self._put_version(account, user)
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202 | 84846143 | Antony Chazapis | self.con.commit()
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203 | 84846143 | Antony Chazapis | |
204 | 02c0c3fa | Antony Chazapis | def delete_account(self, user, account): |
205 | 02c0c3fa | Antony Chazapis | """Delete the account with the given name."""
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206 | b956618e | Antony Chazapis | |
207 | 02c0c3fa | Antony Chazapis | logger.debug("delete_account: %s", account)
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208 | cca6c617 | Antony Chazapis | if user != account:
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209 | cca6c617 | Antony Chazapis | raise NotAllowedError
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210 | 84846143 | Antony Chazapis | count = self._get_pathstats(account)[0] |
211 | 22dab079 | Antony Chazapis | if count > 0: |
212 | 02c0c3fa | Antony Chazapis | raise IndexError('Account is not empty') |
213 | 84846143 | Antony Chazapis | sql = 'delete from versions where name = ?'
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214 | 84846143 | Antony Chazapis | self.con.execute(sql, (account,))
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215 | 84846143 | Antony Chazapis | sql = 'delete from groups where name = ?'
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216 | 84846143 | Antony Chazapis | self.con.execute(sql, (account,))
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217 | 84846143 | Antony Chazapis | self.con.commit()
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218 | 02c0c3fa | Antony Chazapis | |
219 | 02c0c3fa | Antony Chazapis | def list_containers(self, user, account, marker=None, limit=10000, until=None): |
220 | 02c0c3fa | Antony Chazapis | """Return a list of containers existing under an account."""
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221 | 02c0c3fa | Antony Chazapis | |
222 | 02c0c3fa | Antony Chazapis | logger.debug("list_containers: %s %s %s %s", account, marker, limit, until)
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223 | 02c0c3fa | Antony Chazapis | if user != account:
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224 | 02c0c3fa | Antony Chazapis | raise NotAllowedError
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225 | 02c0c3fa | Antony Chazapis | return self._list_objects(account, '', '/', marker, limit, False, [], until) |
226 | b956618e | Antony Chazapis | |
227 | 83dd59c5 | Antony Chazapis | def get_container_meta(self, user, account, container, until=None): |
228 | b956618e | Antony Chazapis | """Return a dictionary with the container metadata."""
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229 | b956618e | Antony Chazapis | |
230 | 58a6c894 | Antony Chazapis | logger.debug("get_container_meta: %s %s %s", account, container, until)
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231 | cca6c617 | Antony Chazapis | if user != account:
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232 | cca6c617 | Antony Chazapis | raise NotAllowedError
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233 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container, until)
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234 | 58a6c894 | Antony Chazapis | count, bytes, tstamp = self._get_pathstats(path, until) |
235 | 31a1c80d | Antony Chazapis | if mtime > tstamp:
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236 | 31a1c80d | Antony Chazapis | tstamp = mtime |
237 | 58a6c894 | Antony Chazapis | if until is None: |
238 | 58a6c894 | Antony Chazapis | modified = tstamp |
239 | 58a6c894 | Antony Chazapis | else:
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240 | 31a1c80d | Antony Chazapis | modified = self._get_pathstats(path)[2] # Overall last modification |
241 | 31a1c80d | Antony Chazapis | if mtime > modified:
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242 | 31a1c80d | Antony Chazapis | modified = mtime |
243 | 58a6c894 | Antony Chazapis | |
244 | 58a6c894 | Antony Chazapis | meta = self._get_metadata(path, version_id)
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245 | 58a6c894 | Antony Chazapis | meta.update({'name': container, 'count': count, 'bytes': bytes, 'modified': modified}) |
246 | 58a6c894 | Antony Chazapis | if until is not None: |
247 | 58a6c894 | Antony Chazapis | meta.update({'until_timestamp': tstamp})
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248 | b956618e | Antony Chazapis | return meta
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249 | b956618e | Antony Chazapis | |
250 | 83dd59c5 | Antony Chazapis | def update_container_meta(self, user, account, container, meta, replace=False): |
251 | b956618e | Antony Chazapis | """Update the metadata associated with the container."""
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252 | b956618e | Antony Chazapis | |
253 | 58a6c894 | Antony Chazapis | logger.debug("update_container_meta: %s %s %s %s", account, container, meta, replace)
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254 | cca6c617 | Antony Chazapis | if user != account:
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255 | cca6c617 | Antony Chazapis | raise NotAllowedError
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256 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container)
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257 | 104626e3 | Antony Chazapis | self._put_metadata(user, path, meta, replace)
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258 | b956618e | Antony Chazapis | |
259 | 02c0c3fa | Antony Chazapis | def get_container_policy(self, user, account, container): |
260 | 02c0c3fa | Antony Chazapis | """Return a dictionary with the container policy."""
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261 | 02c0c3fa | Antony Chazapis | |
262 | 02c0c3fa | Antony Chazapis | logger.debug("get_container_policy: %s %s", account, container)
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263 | 3ab38c43 | Antony Chazapis | if user != account:
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264 | 3ab38c43 | Antony Chazapis | raise NotAllowedError
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265 | 3ab38c43 | Antony Chazapis | path = self._get_containerinfo(account, container)[0] |
266 | 3ab38c43 | Antony Chazapis | return self._get_policy(path) |
267 | 02c0c3fa | Antony Chazapis | |
268 | 02c0c3fa | Antony Chazapis | def update_container_policy(self, user, account, container, policy, replace=False): |
269 | 02c0c3fa | Antony Chazapis | """Update the policy associated with the account."""
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270 | 02c0c3fa | Antony Chazapis | |
271 | 02c0c3fa | Antony Chazapis | logger.debug("update_container_policy: %s %s %s %s", account, container, policy, replace)
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272 | 3ab38c43 | Antony Chazapis | if user != account:
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273 | 3ab38c43 | Antony Chazapis | raise NotAllowedError
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274 | 3ab38c43 | Antony Chazapis | path = self._get_containerinfo(account, container)[0] |
275 | 3ab38c43 | Antony Chazapis | self._check_policy(policy)
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276 | 3ab38c43 | Antony Chazapis | if replace:
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277 | 3ab38c43 | Antony Chazapis | for k, v in self.default_policy.iteritems(): |
278 | 3ab38c43 | Antony Chazapis | if k not in policy: |
279 | 3ab38c43 | Antony Chazapis | policy[k] = v |
280 | 3ab38c43 | Antony Chazapis | for k, v in policy.iteritems(): |
281 | 3ab38c43 | Antony Chazapis | sql = 'insert or replace into policy (name, key, value) values (?, ?, ?)'
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282 | 3ab38c43 | Antony Chazapis | self.con.execute(sql, (path, k, v))
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283 | 3ab38c43 | Antony Chazapis | self.con.commit()
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284 | 02c0c3fa | Antony Chazapis | |
285 | 02c0c3fa | Antony Chazapis | def put_container(self, user, account, container, policy=None): |
286 | 02c0c3fa | Antony Chazapis | """Create a new container with the given name."""
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287 | 02c0c3fa | Antony Chazapis | |
288 | 02c0c3fa | Antony Chazapis | logger.debug("put_container: %s %s %s", account, container, policy)
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289 | 02c0c3fa | Antony Chazapis | if user != account:
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290 | 02c0c3fa | Antony Chazapis | raise NotAllowedError
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291 | 02c0c3fa | Antony Chazapis | try:
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292 | 02c0c3fa | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container)
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293 | 02c0c3fa | Antony Chazapis | except NameError: |
294 | 3ab38c43 | Antony Chazapis | pass
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295 | 02c0c3fa | Antony Chazapis | else:
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296 | 02c0c3fa | Antony Chazapis | raise NameError('Container already exists') |
297 | 3ab38c43 | Antony Chazapis | if policy:
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298 | 3ab38c43 | Antony Chazapis | self._check_policy(policy)
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299 | 3ab38c43 | Antony Chazapis | path = os.path.join(account, container) |
300 | 3ab38c43 | Antony Chazapis | version_id = self._put_version(path, user)
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301 | 3ab38c43 | Antony Chazapis | for k, v in self.default_policy.iteritems(): |
302 | 3ab38c43 | Antony Chazapis | if k not in policy: |
303 | 3ab38c43 | Antony Chazapis | policy[k] = v |
304 | 3ab38c43 | Antony Chazapis | for k, v in policy.iteritems(): |
305 | 3ab38c43 | Antony Chazapis | sql = 'insert or replace into policy (name, key, value) values (?, ?, ?)'
|
306 | 3ab38c43 | Antony Chazapis | self.con.execute(sql, (path, k, v))
|
307 | 3ab38c43 | Antony Chazapis | self.con.commit()
|
308 | 02c0c3fa | Antony Chazapis | |
309 | 84846143 | Antony Chazapis | def delete_container(self, user, account, container, until=None): |
310 | 84846143 | Antony Chazapis | """Delete/purge the container with the given name."""
|
311 | 02c0c3fa | Antony Chazapis | |
312 | 84846143 | Antony Chazapis | logger.debug("delete_container: %s %s %s", account, container, until)
|
313 | 02c0c3fa | Antony Chazapis | if user != account:
|
314 | 02c0c3fa | Antony Chazapis | raise NotAllowedError
|
315 | 02c0c3fa | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container)
|
316 | 84846143 | Antony Chazapis | |
317 | 84846143 | Antony Chazapis | if until is not None: |
318 | 84846143 | Antony Chazapis | sql = '''select version_id from versions where name like ? and tstamp <= ?'''
|
319 | 84846143 | Antony Chazapis | c = self.con.execute(sql, (path + '/%', until)) |
320 | 84846143 | Antony Chazapis | for v in [x[0] for x in c.fetchall()]: |
321 | 84846143 | Antony Chazapis | self._del_version(v)
|
322 | 84846143 | Antony Chazapis | self.con.commit()
|
323 | 84846143 | Antony Chazapis | return
|
324 | 84846143 | Antony Chazapis | |
325 | 84846143 | Antony Chazapis | count = self._get_pathstats(path)[0] |
326 | 02c0c3fa | Antony Chazapis | if count > 0: |
327 | 02c0c3fa | Antony Chazapis | raise IndexError('Container is not empty') |
328 | 2f51ce47 | Antony Chazapis | sql = 'delete from versions where name = ? or name like ?' # May contain hidden items. |
329 | 2f51ce47 | Antony Chazapis | self.con.execute(sql, (path, path + '/%',)) |
330 | 84846143 | Antony Chazapis | sql = 'delete from policy where name = ?'
|
331 | 84846143 | Antony Chazapis | self.con.execute(sql, (path,))
|
332 | b980169d | Antony Chazapis | self._copy_version(user, account, account, True, True) # New account version (for timestamp update). |
333 | 02c0c3fa | Antony Chazapis | |
334 | 83dd59c5 | Antony Chazapis | def list_objects(self, user, account, container, prefix='', delimiter=None, marker=None, limit=10000, virtual=True, keys=[], until=None): |
335 | b956618e | Antony Chazapis | """Return a list of objects existing under a container."""
|
336 | b956618e | Antony Chazapis | |
337 | 84846143 | Antony Chazapis | logger.debug("list_objects: %s %s %s %s %s %s %s %s %s", account, container, prefix, delimiter, marker, limit, virtual, keys, until)
|
338 | cca6c617 | Antony Chazapis | if user != account:
|
339 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
340 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container, until)
|
341 | 58a6c894 | Antony Chazapis | return self._list_objects(path, prefix, delimiter, marker, limit, virtual, keys, until) |
342 | 22dab079 | Antony Chazapis | |
343 | 83dd59c5 | Antony Chazapis | def list_object_meta(self, user, account, container, until=None): |
344 | 22dab079 | Antony Chazapis | """Return a list with all the container's object meta keys."""
|
345 | b956618e | Antony Chazapis | |
346 | 58a6c894 | Antony Chazapis | logger.debug("list_object_meta: %s %s %s", account, container, until)
|
347 | cca6c617 | Antony Chazapis | if user != account:
|
348 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
349 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container, until)
|
350 | 58a6c894 | Antony Chazapis | sql = '''select distinct m.key from (%s) o, metadata m
|
351 | 58a6c894 | Antony Chazapis | where m.version_id = o.version_id and o.name like ?'''
|
352 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
|
353 | 22dab079 | Antony Chazapis | c = self.con.execute(sql, (path + '/%',)) |
354 | 22dab079 | Antony Chazapis | return [x[0] for x in c.fetchall()] |
355 | b956618e | Antony Chazapis | |
356 | 83dd59c5 | Antony Chazapis | def get_object_meta(self, user, account, container, name, version=None): |
357 | b956618e | Antony Chazapis | """Return a dictionary with the object metadata."""
|
358 | b956618e | Antony Chazapis | |
359 | 58a6c894 | Antony Chazapis | logger.debug("get_object_meta: %s %s %s %s", account, container, name, version)
|
360 | cca6c617 | Antony Chazapis | self._can_read(user, account, container, name)
|
361 | 104626e3 | Antony Chazapis | path, version_id, muser, mtime, size = self._get_objectinfo(account, container, name, version)
|
362 | 58a6c894 | Antony Chazapis | if version is None: |
363 | 58a6c894 | Antony Chazapis | modified = mtime |
364 | 58a6c894 | Antony Chazapis | else:
|
365 | 104626e3 | Antony Chazapis | modified = self._get_version(path, version)[2] # Overall last modification |
366 | 58a6c894 | Antony Chazapis | |
367 | 58a6c894 | Antony Chazapis | meta = self._get_metadata(path, version_id)
|
368 | 104626e3 | Antony Chazapis | meta.update({'name': name, 'bytes': size}) |
369 | 104626e3 | Antony Chazapis | meta.update({'version': version_id, 'version_timestamp': mtime}) |
370 | 104626e3 | Antony Chazapis | meta.update({'modified': modified, 'modified_by': muser}) |
371 | b956618e | Antony Chazapis | return meta
|
372 | b956618e | Antony Chazapis | |
373 | 83dd59c5 | Antony Chazapis | def update_object_meta(self, user, account, container, name, meta, replace=False): |
374 | b956618e | Antony Chazapis | """Update the metadata associated with the object."""
|
375 | b956618e | Antony Chazapis | |
376 | 22dab079 | Antony Chazapis | logger.debug("update_object_meta: %s %s %s %s %s", account, container, name, meta, replace)
|
377 | cca6c617 | Antony Chazapis | self._can_write(user, account, container, name)
|
378 | 104626e3 | Antony Chazapis | path, version_id, muser, mtime, size = self._get_objectinfo(account, container, name)
|
379 | 104626e3 | Antony Chazapis | self._put_metadata(user, path, meta, replace)
|
380 | b956618e | Antony Chazapis | |
381 | 3436eeb0 | Antony Chazapis | def get_object_permissions(self, user, account, container, name): |
382 | cca6c617 | Antony Chazapis | """Return the path from which this object gets its permissions from,\
|
383 | cca6c617 | Antony Chazapis | along with a dictionary containing the permissions."""
|
384 | 3436eeb0 | Antony Chazapis | |
385 | 3436eeb0 | Antony Chazapis | logger.debug("get_object_permissions: %s %s %s", account, container, name)
|
386 | cca6c617 | Antony Chazapis | self._can_read(user, account, container, name)
|
387 | 3436eeb0 | Antony Chazapis | path = self._get_objectinfo(account, container, name)[0] |
388 | cca6c617 | Antony Chazapis | return self._get_permissions(path) |
389 | 3436eeb0 | Antony Chazapis | |
390 | 3436eeb0 | Antony Chazapis | def update_object_permissions(self, user, account, container, name, permissions): |
391 | 3436eeb0 | Antony Chazapis | """Update the permissions associated with the object."""
|
392 | 3436eeb0 | Antony Chazapis | |
393 | 3436eeb0 | Antony Chazapis | logger.debug("update_object_permissions: %s %s %s %s", account, container, name, permissions)
|
394 | cca6c617 | Antony Chazapis | if user != account:
|
395 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
396 | 3436eeb0 | Antony Chazapis | path = self._get_objectinfo(account, container, name)[0] |
397 | 3436eeb0 | Antony Chazapis | r, w = self._check_permissions(path, permissions)
|
398 | 3436eeb0 | Antony Chazapis | self._put_permissions(path, r, w)
|
399 | 3436eeb0 | Antony Chazapis | |
400 | 02c0c3fa | Antony Chazapis | def get_object_public(self, user, account, container, name): |
401 | 02c0c3fa | Antony Chazapis | """Return the public URL of the object if applicable."""
|
402 | 02c0c3fa | Antony Chazapis | |
403 | 02c0c3fa | Antony Chazapis | logger.debug("get_object_public: %s %s %s", account, container, name)
|
404 | e0f916bb | Antony Chazapis | self._can_read(user, account, container, name)
|
405 | e0f916bb | Antony Chazapis | path = self._get_objectinfo(account, container, name)[0] |
406 | e0f916bb | Antony Chazapis | if self._get_public(path): |
407 | e0f916bb | Antony Chazapis | return '/public/' + path |
408 | 02c0c3fa | Antony Chazapis | return None |
409 | 02c0c3fa | Antony Chazapis | |
410 | 02c0c3fa | Antony Chazapis | def update_object_public(self, user, account, container, name, public): |
411 | 02c0c3fa | Antony Chazapis | """Update the public status of the object."""
|
412 | 02c0c3fa | Antony Chazapis | |
413 | 02c0c3fa | Antony Chazapis | logger.debug("update_object_public: %s %s %s %s", account, container, name, public)
|
414 | e0f916bb | Antony Chazapis | self._can_write(user, account, container, name)
|
415 | e0f916bb | Antony Chazapis | path = self._get_objectinfo(account, container, name)[0] |
416 | e0f916bb | Antony Chazapis | self._put_public(path, public)
|
417 | 02c0c3fa | Antony Chazapis | |
418 | 83dd59c5 | Antony Chazapis | def get_object_hashmap(self, user, account, container, name, version=None): |
419 | 22dab079 | Antony Chazapis | """Return the object's size and a list with partial hashes."""
|
420 | b956618e | Antony Chazapis | |
421 | 22dab079 | Antony Chazapis | logger.debug("get_object_hashmap: %s %s %s %s", account, container, name, version)
|
422 | cca6c617 | Antony Chazapis | self._can_read(user, account, container, name)
|
423 | 104626e3 | Antony Chazapis | path, version_id, muser, mtime, size = self._get_objectinfo(account, container, name, version)
|
424 | 58a6c894 | Antony Chazapis | sql = 'select block_id from hashmaps where version_id = ? order by pos asc'
|
425 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (version_id,))
|
426 | 22dab079 | Antony Chazapis | hashmap = [x[0] for x in c.fetchall()] |
427 | 22dab079 | Antony Chazapis | return size, hashmap
|
428 | 22dab079 | Antony Chazapis | |
429 | cca6c617 | Antony Chazapis | def update_object_hashmap(self, user, account, container, name, size, hashmap, meta={}, replace_meta=False, permissions=None): |
430 | 22dab079 | Antony Chazapis | """Create/update an object with the specified size and partial hashes."""
|
431 | b956618e | Antony Chazapis | |
432 | cfe6939d | Antony Chazapis | logger.debug("update_object_hashmap: %s %s %s %s %s", account, container, name, size, hashmap)
|
433 | cca6c617 | Antony Chazapis | if permissions is not None and user != account: |
434 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
435 | cca6c617 | Antony Chazapis | self._can_write(user, account, container, name)
|
436 | 76985443 | Sofia Papagiannaki | missing = [] |
437 | 76985443 | Sofia Papagiannaki | for i in range(len(hashmap)): |
438 | 76985443 | Sofia Papagiannaki | sql = 'select count(*) from blocks where block_id = ?'
|
439 | 76985443 | Sofia Papagiannaki | c = self.con.execute(sql, (hashmap[i],))
|
440 | 76985443 | Sofia Papagiannaki | if c.fetchone()[0] == 0: |
441 | 76985443 | Sofia Papagiannaki | missing.append(hashmap[i]) |
442 | 76985443 | Sofia Papagiannaki | if missing:
|
443 | 76985443 | Sofia Papagiannaki | ie = IndexError()
|
444 | 76985443 | Sofia Papagiannaki | ie.data = missing |
445 | 76985443 | Sofia Papagiannaki | raise ie
|
446 | 58a6c894 | Antony Chazapis | path = self._get_containerinfo(account, container)[0] |
447 | 58a6c894 | Antony Chazapis | path = os.path.join(path, name) |
448 | cca6c617 | Antony Chazapis | if permissions is not None: |
449 | 3436eeb0 | Antony Chazapis | r, w = self._check_permissions(path, permissions)
|
450 | 104626e3 | Antony Chazapis | src_version_id, dest_version_id = self._copy_version(user, path, path, not replace_meta, False) |
451 | 58a6c894 | Antony Chazapis | sql = 'update versions set size = ? where version_id = ?'
|
452 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (size, dest_version_id))
|
453 | 58a6c894 | Antony Chazapis | # TODO: Check for block_id existence.
|
454 | 22dab079 | Antony Chazapis | for i in range(len(hashmap)): |
455 | 22dab079 | Antony Chazapis | sql = 'insert or replace into hashmaps (version_id, pos, block_id) values (?, ?, ?)'
|
456 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (dest_version_id, i, hashmap[i]))
|
457 | 83dd59c5 | Antony Chazapis | for k, v in meta.iteritems(): |
458 | 83dd59c5 | Antony Chazapis | sql = 'insert or replace into metadata (version_id, key, value) values (?, ?, ?)'
|
459 | 83dd59c5 | Antony Chazapis | self.con.execute(sql, (dest_version_id, k, v))
|
460 | cca6c617 | Antony Chazapis | if permissions is not None: |
461 | 3436eeb0 | Antony Chazapis | sql = 'insert or replace into permissions (name, read, write) values (?, ?, ?)'
|
462 | 3436eeb0 | Antony Chazapis | self.con.execute(sql, (path, r, w))
|
463 | 22dab079 | Antony Chazapis | self.con.commit()
|
464 | 22dab079 | Antony Chazapis | |
465 | cca6c617 | Antony Chazapis | def copy_object(self, user, account, src_container, src_name, dest_container, dest_name, dest_meta={}, replace_meta=False, permissions=None, src_version=None): |
466 | 22dab079 | Antony Chazapis | """Copy an object's data and metadata."""
|
467 | b956618e | Antony Chazapis | |
468 | 3436eeb0 | Antony Chazapis | logger.debug("copy_object: %s %s %s %s %s %s %s %s %s", account, src_container, src_name, dest_container, dest_name, dest_meta, replace_meta, permissions, src_version)
|
469 | cca6c617 | Antony Chazapis | if permissions is not None and user != account: |
470 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
471 | cca6c617 | Antony Chazapis | self._can_read(user, account, src_container, src_name)
|
472 | cca6c617 | Antony Chazapis | self._can_write(user, account, dest_container, dest_name)
|
473 | 6d817842 | Antony Chazapis | self._get_containerinfo(account, src_container)
|
474 | 58a6c894 | Antony Chazapis | if src_version is None: |
475 | 58a6c894 | Antony Chazapis | src_path = self._get_objectinfo(account, src_container, src_name)[0] |
476 | 22dab079 | Antony Chazapis | else:
|
477 | 58a6c894 | Antony Chazapis | src_path = os.path.join(account, src_container, src_name) |
478 | 58a6c894 | Antony Chazapis | dest_path = self._get_containerinfo(account, dest_container)[0] |
479 | 58a6c894 | Antony Chazapis | dest_path = os.path.join(dest_path, dest_name) |
480 | cca6c617 | Antony Chazapis | if permissions is not None: |
481 | 3436eeb0 | Antony Chazapis | r, w = self._check_permissions(dest_path, permissions)
|
482 | 104626e3 | Antony Chazapis | src_version_id, dest_version_id = self._copy_version(user, src_path, dest_path, not replace_meta, True, src_version) |
483 | 58a6c894 | Antony Chazapis | for k, v in dest_meta.iteritems(): |
484 | 58a6c894 | Antony Chazapis | sql = 'insert or replace into metadata (version_id, key, value) values (?, ?, ?)'
|
485 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (dest_version_id, k, v))
|
486 | cca6c617 | Antony Chazapis | if permissions is not None: |
487 | 3436eeb0 | Antony Chazapis | sql = 'insert or replace into permissions (name, read, write) values (?, ?, ?)'
|
488 | 3436eeb0 | Antony Chazapis | self.con.execute(sql, (dest_path, r, w))
|
489 | 58a6c894 | Antony Chazapis | self.con.commit()
|
490 | b956618e | Antony Chazapis | |
491 | cca6c617 | Antony Chazapis | def move_object(self, user, account, src_container, src_name, dest_container, dest_name, dest_meta={}, replace_meta=False, permissions=None): |
492 | b956618e | Antony Chazapis | """Move an object's data and metadata."""
|
493 | b956618e | Antony Chazapis | |
494 | 3436eeb0 | Antony Chazapis | logger.debug("move_object: %s %s %s %s %s %s %s %s", account, src_container, src_name, dest_container, dest_name, dest_meta, replace_meta, permissions)
|
495 | 3436eeb0 | Antony Chazapis | self.copy_object(user, account, src_container, src_name, dest_container, dest_name, dest_meta, replace_meta, permissions, None) |
496 | 83dd59c5 | Antony Chazapis | self.delete_object(user, account, src_container, src_name)
|
497 | b956618e | Antony Chazapis | |
498 | 84846143 | Antony Chazapis | def delete_object(self, user, account, container, name, until=None): |
499 | 84846143 | Antony Chazapis | """Delete/purge an object."""
|
500 | b956618e | Antony Chazapis | |
501 | 84846143 | Antony Chazapis | logger.debug("delete_object: %s %s %s %s", account, container, name, until)
|
502 | cca6c617 | Antony Chazapis | if user != account:
|
503 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
504 | 84846143 | Antony Chazapis | |
505 | 84846143 | Antony Chazapis | if until is not None: |
506 | 84846143 | Antony Chazapis | path = os.path.join(account, container, name) |
507 | 84846143 | Antony Chazapis | sql = '''select version_id from versions where name = ? and tstamp <= ?'''
|
508 | 84846143 | Antony Chazapis | c = self.con.execute(sql, (path, until))
|
509 | 84846143 | Antony Chazapis | for v in [x[0] in c.fetchall()]: |
510 | 84846143 | Antony Chazapis | self._del_version(v)
|
511 | 84846143 | Antony Chazapis | try:
|
512 | 84846143 | Antony Chazapis | version_id = self._get_version(path)[0] |
513 | 84846143 | Antony Chazapis | except NameError: |
514 | 84846143 | Antony Chazapis | pass
|
515 | 84846143 | Antony Chazapis | else:
|
516 | 84846143 | Antony Chazapis | self._del_sharing(path)
|
517 | 84846143 | Antony Chazapis | self.con.commit()
|
518 | 84846143 | Antony Chazapis | return
|
519 | 84846143 | Antony Chazapis | |
520 | 104626e3 | Antony Chazapis | path = self._get_objectinfo(account, container, name)[0] |
521 | 104626e3 | Antony Chazapis | self._put_version(path, user, 0, 1) |
522 | 84846143 | Antony Chazapis | self._del_sharing(path)
|
523 | 58a6c894 | Antony Chazapis | |
524 | 83dd59c5 | Antony Chazapis | def list_versions(self, user, account, container, name): |
525 | 83dd59c5 | Antony Chazapis | """Return a list of all (version, version_timestamp) tuples for an object."""
|
526 | 58a6c894 | Antony Chazapis | |
527 | 83dd59c5 | Antony Chazapis | logger.debug("list_versions: %s %s %s", account, container, name)
|
528 | cca6c617 | Antony Chazapis | self._can_read(user, account, container, name)
|
529 | 58a6c894 | Antony Chazapis | # This will even show deleted versions.
|
530 | 22dab079 | Antony Chazapis | path = os.path.join(account, container, name) |
531 | 84846143 | Antony Chazapis | sql = '''select distinct version_id, tstamp from versions where name = ? and hide = 0'''
|
532 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
533 | c9af0703 | Antony Chazapis | return [(int(x[0]), int(x[1])) for x in c.fetchall()] |
534 | b956618e | Antony Chazapis | |
535 | 22dab079 | Antony Chazapis | def get_block(self, hash): |
536 | 22dab079 | Antony Chazapis | """Return a block's data."""
|
537 | 22dab079 | Antony Chazapis | |
538 | cfe6939d | Antony Chazapis | logger.debug("get_block: %s", hash) |
539 | 22dab079 | Antony Chazapis | c = self.con.execute('select data from blocks where block_id = ?', (hash,)) |
540 | 22dab079 | Antony Chazapis | row = c.fetchone() |
541 | 22dab079 | Antony Chazapis | if row:
|
542 | 22dab079 | Antony Chazapis | return str(row[0]) |
543 | 22dab079 | Antony Chazapis | else:
|
544 | 22dab079 | Antony Chazapis | raise NameError('Block does not exist') |
545 | b956618e | Antony Chazapis | |
546 | 22dab079 | Antony Chazapis | def put_block(self, data): |
547 | 22dab079 | Antony Chazapis | """Create a block and return the hash."""
|
548 | 22dab079 | Antony Chazapis | |
549 | cfe6939d | Antony Chazapis | logger.debug("put_block: %s", len(data)) |
550 | 22dab079 | Antony Chazapis | h = hashlib.new(self.hash_algorithm)
|
551 | 22dab079 | Antony Chazapis | h.update(data.rstrip('\x00'))
|
552 | 22dab079 | Antony Chazapis | hash = h.hexdigest() |
553 | 22dab079 | Antony Chazapis | sql = 'insert or ignore into blocks (block_id, data) values (?, ?)'
|
554 | 22dab079 | Antony Chazapis | self.con.execute(sql, (hash, buffer(data))) |
555 | 22dab079 | Antony Chazapis | self.con.commit()
|
556 | 22dab079 | Antony Chazapis | return hash |
557 | 22dab079 | Antony Chazapis | |
558 | 22dab079 | Antony Chazapis | def update_block(self, hash, data, offset=0): |
559 | 22dab079 | Antony Chazapis | """Update a known block and return the hash."""
|
560 | 22dab079 | Antony Chazapis | |
561 | cfe6939d | Antony Chazapis | logger.debug("update_block: %s %s %s", hash, len(data), offset) |
562 | cfe6939d | Antony Chazapis | if offset == 0 and len(data) == self.block_size: |
563 | cfe6939d | Antony Chazapis | return self.put_block(data) |
564 | 22dab079 | Antony Chazapis | src_data = self.get_block(hash) |
565 | 22dab079 | Antony Chazapis | bs = self.block_size
|
566 | 22dab079 | Antony Chazapis | if offset < 0 or offset > bs or offset + len(data) > bs: |
567 | 22dab079 | Antony Chazapis | raise IndexError('Offset or data outside block limits') |
568 | 22dab079 | Antony Chazapis | dest_data = src_data[:offset] + data + src_data[offset + len(data):]
|
569 | 22dab079 | Antony Chazapis | return self.put_block(dest_data) |
570 | b956618e | Antony Chazapis | |
571 | 58a6c894 | Antony Chazapis | def _sql_until(self, until=None): |
572 | 58a6c894 | Antony Chazapis | """Return the sql to get the latest versions until the timestamp given."""
|
573 | 58a6c894 | Antony Chazapis | if until is None: |
574 | 58a6c894 | Antony Chazapis | until = int(time.time())
|
575 | 84846143 | Antony Chazapis | sql = '''select version_id, name, tstamp, size from versions v
|
576 | 58a6c894 | Antony Chazapis | where version_id = (select max(version_id) from versions
|
577 | 2f51ce47 | Antony Chazapis | where v.name = name and tstamp <= %s)
|
578 | 58a6c894 | Antony Chazapis | and hide = 0'''
|
579 | 84846143 | Antony Chazapis | return sql % (until,)
|
580 | 58a6c894 | Antony Chazapis | |
581 | 58a6c894 | Antony Chazapis | def _get_pathstats(self, path, until=None): |
582 | 58a6c894 | Antony Chazapis | """Return count and sum of size of everything under path and latest timestamp."""
|
583 | 58a6c894 | Antony Chazapis | |
584 | 58a6c894 | Antony Chazapis | sql = 'select count(version_id), total(size), max(tstamp) from (%s) where name like ?'
|
585 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
|
586 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path + '/%',)) |
587 | b956618e | Antony Chazapis | row = c.fetchone() |
588 | 58a6c894 | Antony Chazapis | tstamp = row[2] if row[2] is not None else 0 |
589 | 58a6c894 | Antony Chazapis | return int(row[0]), int(row[1]), int(tstamp) |
590 | 58a6c894 | Antony Chazapis | |
591 | 58a6c894 | Antony Chazapis | def _get_version(self, path, version=None): |
592 | cb146cf9 | Antony Chazapis | if version is None: |
593 | 84846143 | Antony Chazapis | sql = '''select version_id, user, tstamp, size, hide from versions where name = ?
|
594 | 58a6c894 | Antony Chazapis | order by version_id desc limit 1'''
|
595 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
596 | 58a6c894 | Antony Chazapis | row = c.fetchone() |
597 | 104626e3 | Antony Chazapis | if not row or int(row[4]): |
598 | 58a6c894 | Antony Chazapis | raise NameError('Object does not exist') |
599 | b956618e | Antony Chazapis | else:
|
600 | 104626e3 | Antony Chazapis | # The database (sqlite) will not complain if the version is not an integer.
|
601 | 84846143 | Antony Chazapis | sql = '''select version_id, user, tstamp, size from versions where name = ?
|
602 | 58a6c894 | Antony Chazapis | and version_id = ?'''
|
603 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path, version))
|
604 | 58a6c894 | Antony Chazapis | row = c.fetchone() |
605 | 58a6c894 | Antony Chazapis | if not row: |
606 | 58a6c894 | Antony Chazapis | raise IndexError('Version does not exist') |
607 | 104626e3 | Antony Chazapis | return str(row[0]), str(row[1]), int(row[2]), int(row[3]) |
608 | 58a6c894 | Antony Chazapis | |
609 | 104626e3 | Antony Chazapis | def _put_version(self, path, user, size=0, hide=0): |
610 | 84846143 | Antony Chazapis | tstamp = int(time.time())
|
611 | 84846143 | Antony Chazapis | sql = 'insert into versions (name, user, tstamp, size, hide) values (?, ?, ?, ?, ?)'
|
612 | 84846143 | Antony Chazapis | id = self.con.execute(sql, (path, user, tstamp, size, hide)).lastrowid
|
613 | b956618e | Antony Chazapis | self.con.commit()
|
614 | b956618e | Antony Chazapis | return str(id) |
615 | b956618e | Antony Chazapis | |
616 | 104626e3 | Antony Chazapis | def _copy_version(self, user, src_path, dest_path, copy_meta=True, copy_data=True, src_version=None): |
617 | 58a6c894 | Antony Chazapis | if src_version is not None: |
618 | 104626e3 | Antony Chazapis | src_version_id, muser, mtime, size = self._get_version(src_path, src_version)
|
619 | 58a6c894 | Antony Chazapis | else:
|
620 | 58a6c894 | Antony Chazapis | # Latest or create from scratch.
|
621 | 58a6c894 | Antony Chazapis | try:
|
622 | 104626e3 | Antony Chazapis | src_version_id, muser, mtime, size = self._get_version(src_path)
|
623 | 58a6c894 | Antony Chazapis | except NameError: |
624 | 58a6c894 | Antony Chazapis | src_version_id = None
|
625 | 58a6c894 | Antony Chazapis | size = 0
|
626 | 58a6c894 | Antony Chazapis | if not copy_data: |
627 | 58a6c894 | Antony Chazapis | size = 0
|
628 | 104626e3 | Antony Chazapis | dest_version_id = self._put_version(dest_path, user, size)
|
629 | 58a6c894 | Antony Chazapis | if copy_meta and src_version_id is not None: |
630 | 58a6c894 | Antony Chazapis | sql = 'insert into metadata select %s, key, value from metadata where version_id = ?'
|
631 | 58a6c894 | Antony Chazapis | sql = sql % dest_version_id |
632 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (src_version_id,))
|
633 | 58a6c894 | Antony Chazapis | if copy_data and src_version_id is not None: |
634 | 58a6c894 | Antony Chazapis | sql = 'insert into hashmaps select %s, pos, block_id from hashmaps where version_id = ?'
|
635 | 58a6c894 | Antony Chazapis | sql = sql % dest_version_id |
636 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (src_version_id,))
|
637 | 58a6c894 | Antony Chazapis | self.con.commit()
|
638 | 58a6c894 | Antony Chazapis | return src_version_id, dest_version_id
|
639 | 58a6c894 | Antony Chazapis | |
640 | 58a6c894 | Antony Chazapis | def _get_versioninfo(self, account, container, name, until=None): |
641 | 58a6c894 | Antony Chazapis | """Return path, latest version, associated timestamp and size until the timestamp given."""
|
642 | 58a6c894 | Antony Chazapis | |
643 | 58a6c894 | Antony Chazapis | p = (account, container, name) |
644 | 22dab079 | Antony Chazapis | try:
|
645 | 58a6c894 | Antony Chazapis | p = p[:p.index(None)]
|
646 | 58a6c894 | Antony Chazapis | except ValueError: |
647 | 58a6c894 | Antony Chazapis | pass
|
648 | 58a6c894 | Antony Chazapis | path = os.path.join(*p) |
649 | 58a6c894 | Antony Chazapis | sql = '''select version_id, tstamp, size from (%s) where name = ?'''
|
650 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
|
651 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
652 | 58a6c894 | Antony Chazapis | row = c.fetchone() |
653 | 58a6c894 | Antony Chazapis | if row is None: |
654 | 58a6c894 | Antony Chazapis | raise NameError('Path does not exist') |
655 | 58a6c894 | Antony Chazapis | return path, str(row[0]), int(row[1]), int(row[2]) |
656 | 58a6c894 | Antony Chazapis | |
657 | 58a6c894 | Antony Chazapis | def _get_accountinfo(self, account, until=None): |
658 | 58a6c894 | Antony Chazapis | try:
|
659 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_versioninfo(account, None, None, until) |
660 | 58a6c894 | Antony Chazapis | return version_id, mtime
|
661 | 58a6c894 | Antony Chazapis | except:
|
662 | 58a6c894 | Antony Chazapis | raise NameError('Account does not exist') |
663 | 58a6c894 | Antony Chazapis | |
664 | 58a6c894 | Antony Chazapis | def _get_containerinfo(self, account, container, until=None): |
665 | 58a6c894 | Antony Chazapis | try:
|
666 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_versioninfo(account, container, None, until) |
667 | 58a6c894 | Antony Chazapis | return path, version_id, mtime
|
668 | 58a6c894 | Antony Chazapis | except:
|
669 | 22dab079 | Antony Chazapis | raise NameError('Container does not exist') |
670 | 22dab079 | Antony Chazapis | |
671 | 22dab079 | Antony Chazapis | def _get_objectinfo(self, account, container, name, version=None): |
672 | 22dab079 | Antony Chazapis | path = os.path.join(account, container, name) |
673 | 104626e3 | Antony Chazapis | version_id, muser, mtime, size = self._get_version(path, version)
|
674 | 104626e3 | Antony Chazapis | return path, version_id, muser, mtime, size
|
675 | 22dab079 | Antony Chazapis | |
676 | 58a6c894 | Antony Chazapis | def _get_metadata(self, path, version): |
677 | 58a6c894 | Antony Chazapis | sql = 'select key, value from metadata where version_id = ?'
|
678 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (version,))
|
679 | 58a6c894 | Antony Chazapis | return dict(c.fetchall()) |
680 | 58a6c894 | Antony Chazapis | |
681 | 104626e3 | Antony Chazapis | def _put_metadata(self, user, path, meta, replace=False): |
682 | 58a6c894 | Antony Chazapis | """Create a new version and store metadata."""
|
683 | 58a6c894 | Antony Chazapis | |
684 | 104626e3 | Antony Chazapis | src_version_id, dest_version_id = self._copy_version(user, path, path, not replace, True) |
685 | 58a6c894 | Antony Chazapis | for k, v in meta.iteritems(): |
686 | a6eb13e9 | Antony Chazapis | if not replace and v == '': |
687 | a6eb13e9 | Antony Chazapis | sql = 'delete from metadata where version_id = ? and key = ?'
|
688 | a6eb13e9 | Antony Chazapis | self.con.execute(sql, (dest_version_id, k))
|
689 | a6eb13e9 | Antony Chazapis | else:
|
690 | a6eb13e9 | Antony Chazapis | sql = 'insert or replace into metadata (version_id, key, value) values (?, ?, ?)'
|
691 | a6eb13e9 | Antony Chazapis | self.con.execute(sql, (dest_version_id, k, v))
|
692 | 58a6c894 | Antony Chazapis | self.con.commit()
|
693 | 58a6c894 | Antony Chazapis | |
694 | 02c0c3fa | Antony Chazapis | def _get_groups(self, account): |
695 | 02c0c3fa | Antony Chazapis | sql = 'select name, users from groups where account = ?'
|
696 | 02c0c3fa | Antony Chazapis | c = self.con.execute(sql, (account,))
|
697 | 02c0c3fa | Antony Chazapis | return dict([(x[0], x[1].split(',')) for x in c.fetchall()]) |
698 | 02c0c3fa | Antony Chazapis | |
699 | 3ab38c43 | Antony Chazapis | def _check_policy(self, policy): |
700 | 3ab38c43 | Antony Chazapis | for k in policy.keys(): |
701 | 3ab38c43 | Antony Chazapis | if policy[k] == '': |
702 | 3ab38c43 | Antony Chazapis | policy[k] = self.default_policy.get(k)
|
703 | 3ab38c43 | Antony Chazapis | for k, v in policy.iteritems(): |
704 | 3ab38c43 | Antony Chazapis | if k == 'quota': |
705 | 3ab38c43 | Antony Chazapis | q = int(v) # May raise ValueError. |
706 | 3ab38c43 | Antony Chazapis | if q < 0: |
707 | 3ab38c43 | Antony Chazapis | raise ValueError |
708 | 3ab38c43 | Antony Chazapis | elif k == 'versioning': |
709 | 3ab38c43 | Antony Chazapis | if v not in ['auto', 'manual', 'none']: |
710 | 3ab38c43 | Antony Chazapis | raise ValueError |
711 | 3ab38c43 | Antony Chazapis | else:
|
712 | 3ab38c43 | Antony Chazapis | raise ValueError |
713 | 3ab38c43 | Antony Chazapis | |
714 | 3ab38c43 | Antony Chazapis | def _get_policy(self, path): |
715 | 3ab38c43 | Antony Chazapis | sql = 'select key, value from policy where name = ?'
|
716 | 3ab38c43 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
717 | 3ab38c43 | Antony Chazapis | return dict(c.fetchall()) |
718 | 3ab38c43 | Antony Chazapis | |
719 | cca6c617 | Antony Chazapis | def _is_allowed(self, user, account, container, name, op='read'): |
720 | cca6c617 | Antony Chazapis | if user == account:
|
721 | cca6c617 | Antony Chazapis | return True |
722 | cca6c617 | Antony Chazapis | path = os.path.join(account, container, name) |
723 | e0f916bb | Antony Chazapis | if op == 'read' and self._get_public(path): |
724 | e0f916bb | Antony Chazapis | return True |
725 | cca6c617 | Antony Chazapis | perm_path, perms = self._get_permissions(path)
|
726 | 02c0c3fa | Antony Chazapis | |
727 | 02c0c3fa | Antony Chazapis | # Expand groups.
|
728 | 02c0c3fa | Antony Chazapis | for x in ('read', 'write'): |
729 | 02c0c3fa | Antony Chazapis | g_perms = [] |
730 | 02c0c3fa | Antony Chazapis | for y in perms.get(x, []): |
731 | f1713999 | Sofia Papagiannaki | groups = self._get_groups(account)
|
732 | f1713999 | Sofia Papagiannaki | if y in groups: #it's a group |
733 | f1713999 | Sofia Papagiannaki | for g_name in groups[y]: |
734 | f1713999 | Sofia Papagiannaki | g_perms.append(g_name) |
735 | f1713999 | Sofia Papagiannaki | else: #it's a user |
736 | 02c0c3fa | Antony Chazapis | g_perms.append(y) |
737 | 02c0c3fa | Antony Chazapis | perms[x] = g_perms |
738 | 02c0c3fa | Antony Chazapis | |
739 | cca6c617 | Antony Chazapis | if op == 'read' and user in perms.get('read', []): |
740 | cca6c617 | Antony Chazapis | return True |
741 | cca6c617 | Antony Chazapis | if user in perms.get('write', []): |
742 | cca6c617 | Antony Chazapis | return True |
743 | cca6c617 | Antony Chazapis | return False |
744 | cca6c617 | Antony Chazapis | |
745 | cca6c617 | Antony Chazapis | def _can_read(self, user, account, container, name): |
746 | cca6c617 | Antony Chazapis | if not self._is_allowed(user, account, container, name, 'read'): |
747 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
748 | 3436eeb0 | Antony Chazapis | |
749 | cca6c617 | Antony Chazapis | def _can_write(self, user, account, container, name): |
750 | cca6c617 | Antony Chazapis | if not self._is_allowed(user, account, container, name, 'write'): |
751 | cca6c617 | Antony Chazapis | raise NotAllowedError
|
752 | 3436eeb0 | Antony Chazapis | |
753 | 3436eeb0 | Antony Chazapis | def _check_permissions(self, path, permissions): |
754 | 3436eeb0 | Antony Chazapis | # Check for existing permissions.
|
755 | 3436eeb0 | Antony Chazapis | sql = '''select name from permissions
|
756 | 3436eeb0 | Antony Chazapis | where name != ? and (name like ? or ? like name || ?)'''
|
757 | 3436eeb0 | Antony Chazapis | c = self.con.execute(sql, (path, path + '%', path, '%')) |
758 | 1993fea9 | Antony Chazapis | row = c.fetchone() |
759 | 1993fea9 | Antony Chazapis | if row:
|
760 | 1993fea9 | Antony Chazapis | ae = AttributeError()
|
761 | 1993fea9 | Antony Chazapis | ae.data = row[0]
|
762 | 1993fea9 | Antony Chazapis | raise ae
|
763 | 3436eeb0 | Antony Chazapis | |
764 | cca6c617 | Antony Chazapis | # Format given permissions.
|
765 | cca6c617 | Antony Chazapis | if len(permissions) == 0: |
766 | cca6c617 | Antony Chazapis | return '', '' |
767 | 3436eeb0 | Antony Chazapis | r = permissions.get('read', [])
|
768 | 3436eeb0 | Antony Chazapis | w = permissions.get('write', [])
|
769 | e8886082 | Antony Chazapis | if True in [False or ',' in x for x in r]: |
770 | 3436eeb0 | Antony Chazapis | raise ValueError('Bad characters in read permissions') |
771 | e8886082 | Antony Chazapis | if True in [False or ',' in x for x in w]: |
772 | 3436eeb0 | Antony Chazapis | raise ValueError('Bad characters in write permissions') |
773 | cca6c617 | Antony Chazapis | return ','.join(r), ','.join(w) |
774 | 3436eeb0 | Antony Chazapis | |
775 | 3436eeb0 | Antony Chazapis | def _get_permissions(self, path): |
776 | a6eb13e9 | Antony Chazapis | # Check for permissions at path or above.
|
777 | a6eb13e9 | Antony Chazapis | sql = 'select name, read, write from permissions where ? like name || ?'
|
778 | a6eb13e9 | Antony Chazapis | c = self.con.execute(sql, (path, '%')) |
779 | 3436eeb0 | Antony Chazapis | row = c.fetchone() |
780 | 3436eeb0 | Antony Chazapis | if not row: |
781 | a6eb13e9 | Antony Chazapis | return path, {}
|
782 | 3436eeb0 | Antony Chazapis | |
783 | a6eb13e9 | Antony Chazapis | name, r, w = row |
784 | 3436eeb0 | Antony Chazapis | ret = {} |
785 | 3436eeb0 | Antony Chazapis | if w != '': |
786 | 3436eeb0 | Antony Chazapis | ret['write'] = w.split(',') |
787 | 3436eeb0 | Antony Chazapis | if r != '': |
788 | cca6c617 | Antony Chazapis | ret['read'] = r.split(',') |
789 | a6eb13e9 | Antony Chazapis | return name, ret
|
790 | 3436eeb0 | Antony Chazapis | |
791 | 3436eeb0 | Antony Chazapis | def _put_permissions(self, path, r, w): |
792 | cca6c617 | Antony Chazapis | if r == '' and w == '': |
793 | cca6c617 | Antony Chazapis | sql = 'delete from permissions where name = ?'
|
794 | cca6c617 | Antony Chazapis | self.con.execute(sql, (path,))
|
795 | cca6c617 | Antony Chazapis | else:
|
796 | cca6c617 | Antony Chazapis | sql = 'insert or replace into permissions (name, read, write) values (?, ?, ?)'
|
797 | cca6c617 | Antony Chazapis | self.con.execute(sql, (path, r, w))
|
798 | 3436eeb0 | Antony Chazapis | self.con.commit()
|
799 | 3436eeb0 | Antony Chazapis | |
800 | e0f916bb | Antony Chazapis | def _get_public(self, path): |
801 | e0f916bb | Antony Chazapis | sql = 'select name from public where name = ?'
|
802 | e0f916bb | Antony Chazapis | c = self.con.execute(sql, (path,))
|
803 | e0f916bb | Antony Chazapis | row = c.fetchone() |
804 | e0f916bb | Antony Chazapis | if not row: |
805 | e0f916bb | Antony Chazapis | return False |
806 | e0f916bb | Antony Chazapis | return True |
807 | e0f916bb | Antony Chazapis | |
808 | e0f916bb | Antony Chazapis | def _put_public(self, path, public): |
809 | e0f916bb | Antony Chazapis | if not public: |
810 | e0f916bb | Antony Chazapis | sql = 'delete from public where name = ?'
|
811 | e0f916bb | Antony Chazapis | else:
|
812 | e0f916bb | Antony Chazapis | sql = 'insert or replace into public (name) values (?)'
|
813 | e0f916bb | Antony Chazapis | self.con.execute(sql, (path,))
|
814 | e0f916bb | Antony Chazapis | self.con.commit()
|
815 | e0f916bb | Antony Chazapis | |
816 | 84846143 | Antony Chazapis | def _del_sharing(self, path): |
817 | 84846143 | Antony Chazapis | sql = 'delete from permissions where name = ?'
|
818 | 84846143 | Antony Chazapis | self.con.execute(sql, (path,))
|
819 | 84846143 | Antony Chazapis | sql = 'delete from public where name = ?'
|
820 | 84846143 | Antony Chazapis | self.con.execute(sql, (path,))
|
821 | 84846143 | Antony Chazapis | self.con.commit()
|
822 | 84846143 | Antony Chazapis | |
823 | 58a6c894 | Antony Chazapis | def _list_objects(self, path, prefix='', delimiter=None, marker=None, limit=10000, virtual=True, keys=[], until=None): |
824 | 22dab079 | Antony Chazapis | cont_prefix = path + '/'
|
825 | 22dab079 | Antony Chazapis | if keys and len(keys) > 0: |
826 | 58a6c894 | Antony Chazapis | sql = '''select distinct o.name, o.version_id from (%s) o, metadata m where o.name like ? and
|
827 | 58a6c894 | Antony Chazapis | m.version_id = o.version_id and m.key in (%s) order by o.name'''
|
828 | 58a6c894 | Antony Chazapis | sql = sql % (self._sql_until(until), ', '.join('?' * len(keys))) |
829 | 22dab079 | Antony Chazapis | param = (cont_prefix + prefix + '%',) + tuple(keys) |
830 | 22dab079 | Antony Chazapis | else:
|
831 | 58a6c894 | Antony Chazapis | sql = 'select name, version_id from (%s) where name like ? order by name'
|
832 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
|
833 | 22dab079 | Antony Chazapis | param = (cont_prefix + prefix + '%',)
|
834 | 22dab079 | Antony Chazapis | c = self.con.execute(sql, param)
|
835 | 58a6c894 | Antony Chazapis | objects = [(x[0][len(cont_prefix):], x[1]) for x in c.fetchall()] |
836 | 22dab079 | Antony Chazapis | if delimiter:
|
837 | 22dab079 | Antony Chazapis | pseudo_objects = [] |
838 | 22dab079 | Antony Chazapis | for x in objects: |
839 | 58a6c894 | Antony Chazapis | pseudo_name = x[0]
|
840 | 22dab079 | Antony Chazapis | i = pseudo_name.find(delimiter, len(prefix))
|
841 | 22dab079 | Antony Chazapis | if not virtual: |
842 | 22dab079 | Antony Chazapis | # If the delimiter is not found, or the name ends
|
843 | 22dab079 | Antony Chazapis | # with the delimiter's first occurence.
|
844 | 22dab079 | Antony Chazapis | if i == -1 or len(pseudo_name) == i + len(delimiter): |
845 | 58a6c894 | Antony Chazapis | pseudo_objects.append(x) |
846 | 22dab079 | Antony Chazapis | else:
|
847 | 22dab079 | Antony Chazapis | # If the delimiter is found, keep up to (and including) the delimiter.
|
848 | 22dab079 | Antony Chazapis | if i != -1: |
849 | 22dab079 | Antony Chazapis | pseudo_name = pseudo_name[:i + len(delimiter)]
|
850 | 58a6c894 | Antony Chazapis | if pseudo_name not in [y[0] for y in pseudo_objects]: |
851 | 83dd59c5 | Antony Chazapis | if pseudo_name == x[0]: |
852 | 83dd59c5 | Antony Chazapis | pseudo_objects.append(x) |
853 | 83dd59c5 | Antony Chazapis | else:
|
854 | 83dd59c5 | Antony Chazapis | pseudo_objects.append((pseudo_name, None))
|
855 | 22dab079 | Antony Chazapis | objects = pseudo_objects |
856 | 22dab079 | Antony Chazapis | |
857 | 22dab079 | Antony Chazapis | start = 0
|
858 | 22dab079 | Antony Chazapis | if marker:
|
859 | 22dab079 | Antony Chazapis | try:
|
860 | 58a6c894 | Antony Chazapis | start = [x[0] for x in objects].index(marker) + 1 |
861 | 22dab079 | Antony Chazapis | except ValueError: |
862 | 22dab079 | Antony Chazapis | pass
|
863 | 22dab079 | Antony Chazapis | if not limit or limit > 10000: |
864 | 22dab079 | Antony Chazapis | limit = 10000
|
865 | 22dab079 | Antony Chazapis | return objects[start:start + limit]
|
866 | 22dab079 | Antony Chazapis | |
867 | 84846143 | Antony Chazapis | def _del_version(self, version): |
868 | 84846143 | Antony Chazapis | sql = 'delete from hashmaps where version_id = ?'
|
869 | 84846143 | Antony Chazapis | self.con.execute(sql, (version,))
|
870 | 84846143 | Antony Chazapis | sql = 'delete from versions where version_id = ?'
|
871 | 84846143 | Antony Chazapis | self.con.execute(sql, (version,)) |