root / pithos / backends / simple.py @ 3436eeb0
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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 | b956618e | Antony Chazapis | from base import 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 | 22dab079 | Antony Chazapis | basepath = os.path.split(db)[0]
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62 | 22dab079 | Antony Chazapis | if basepath and not os.path.exists(basepath): |
63 | b956618e | Antony Chazapis | os.makedirs(basepath) |
64 | 22dab079 | Antony Chazapis | |
65 | 49350be7 | Giorgos Verigakis | self.con = sqlite3.connect(db, check_same_thread=False) |
66 | 58a6c894 | Antony Chazapis | sql = '''create table if not exists versions (
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67 | 58a6c894 | Antony Chazapis | version_id integer primary key,
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68 | 58a6c894 | Antony Chazapis | name text,
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69 | 58a6c894 | Antony Chazapis | tstamp datetime default current_timestamp,
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70 | 58a6c894 | Antony Chazapis | size integer default 0,
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71 | 58a6c894 | Antony Chazapis | hide integer default 0)'''
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72 | b956618e | Antony Chazapis | self.con.execute(sql)
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73 | b956618e | Antony Chazapis | sql = '''create table if not exists metadata (
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74 | 58a6c894 | Antony Chazapis | version_id integer, key text, value text, primary key (version_id, key))'''
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75 | 22dab079 | Antony Chazapis | self.con.execute(sql)
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76 | 22dab079 | Antony Chazapis | sql = '''create table if not exists blocks (
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77 | 22dab079 | Antony Chazapis | block_id text, data blob, primary key (block_id))'''
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78 | 22dab079 | Antony Chazapis | self.con.execute(sql)
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79 | 22dab079 | Antony Chazapis | sql = '''create table if not exists hashmaps (
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80 | 58a6c894 | Antony Chazapis | version_id integer, pos integer, block_id text, primary key (version_id, pos))'''
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81 | b956618e | Antony Chazapis | self.con.execute(sql)
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82 | 3436eeb0 | Antony Chazapis | sql = '''create table if not exists permissions (
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83 | 3436eeb0 | Antony Chazapis | name text, read text, write text, primary key (name))'''
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84 | 3436eeb0 | Antony Chazapis | self.con.execute(sql)
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85 | b956618e | Antony Chazapis | self.con.commit()
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86 | b956618e | Antony Chazapis | |
87 | 83dd59c5 | Antony Chazapis | def delete_account(self, user, account): |
88 | 58a6c894 | Antony Chazapis | """Delete the account with the given name."""
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89 | 58a6c894 | Antony Chazapis | |
90 | 58a6c894 | Antony Chazapis | logger.debug("delete_account: %s", account)
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91 | 58a6c894 | Antony Chazapis | count, bytes, tstamp = self._get_pathstats(account) |
92 | 58a6c894 | Antony Chazapis | if count > 0: |
93 | 58a6c894 | Antony Chazapis | raise IndexError('Account is not empty') |
94 | 58a6c894 | Antony Chazapis | self._del_path(account) # Point of no return. |
95 | 58a6c894 | Antony Chazapis | |
96 | 83dd59c5 | Antony Chazapis | def get_account_meta(self, user, account, until=None): |
97 | b956618e | Antony Chazapis | """Return a dictionary with the account metadata."""
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98 | b956618e | Antony Chazapis | |
99 | 58a6c894 | Antony Chazapis | logger.debug("get_account_meta: %s %s", account, until)
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100 | 58a6c894 | Antony Chazapis | try:
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101 | 58a6c894 | Antony Chazapis | version_id, mtime = self._get_accountinfo(account, until)
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102 | 58a6c894 | Antony Chazapis | except NameError: |
103 | 58a6c894 | Antony Chazapis | version_id = None
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104 | 60be837c | Antony Chazapis | mtime = 0
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105 | 58a6c894 | Antony Chazapis | count, bytes, tstamp = self._get_pathstats(account, until) |
106 | 31a1c80d | Antony Chazapis | if mtime > tstamp:
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107 | 31a1c80d | Antony Chazapis | tstamp = mtime |
108 | 58a6c894 | Antony Chazapis | if until is None: |
109 | 58a6c894 | Antony Chazapis | modified = tstamp |
110 | 58a6c894 | Antony Chazapis | else:
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111 | 58a6c894 | Antony Chazapis | modified = self._get_pathstats(account)[2] # Overall last modification |
112 | 31a1c80d | Antony Chazapis | if mtime > modified:
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113 | 31a1c80d | Antony Chazapis | modified = mtime |
114 | 22dab079 | Antony Chazapis | |
115 | 22dab079 | Antony Chazapis | # Proper count.
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116 | 58a6c894 | Antony Chazapis | sql = 'select count(name) from (%s) where name glob ? and not name glob ?'
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117 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
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118 | 22dab079 | Antony Chazapis | c = self.con.execute(sql, (account + '/*', account + '/*/*')) |
119 | 22dab079 | Antony Chazapis | row = c.fetchone() |
120 | 22dab079 | Antony Chazapis | count = row[0]
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121 | 22dab079 | Antony Chazapis | |
122 | 58a6c894 | Antony Chazapis | meta = self._get_metadata(account, version_id)
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123 | 22dab079 | Antony Chazapis | meta.update({'name': account, 'count': count, 'bytes': bytes}) |
124 | 58a6c894 | Antony Chazapis | if modified:
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125 | 58a6c894 | Antony Chazapis | meta.update({'modified': modified})
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126 | 58a6c894 | Antony Chazapis | if until is not None: |
127 | 58a6c894 | Antony Chazapis | meta.update({'until_timestamp': tstamp})
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128 | b956618e | Antony Chazapis | return meta
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129 | b956618e | Antony Chazapis | |
130 | 83dd59c5 | Antony Chazapis | def update_account_meta(self, user, account, meta, replace=False): |
131 | b956618e | Antony Chazapis | """Update the metadata associated with the account."""
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132 | b956618e | Antony Chazapis | |
133 | 22dab079 | Antony Chazapis | logger.debug("update_account_meta: %s %s %s", account, meta, replace)
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134 | 58a6c894 | Antony Chazapis | self._put_metadata(account, meta, replace)
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135 | 58a6c894 | Antony Chazapis | |
136 | 83dd59c5 | Antony Chazapis | def list_containers(self, user, account, marker=None, limit=10000, until=None): |
137 | 58a6c894 | Antony Chazapis | """Return a list of containers existing under an account."""
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138 | 58a6c894 | Antony Chazapis | |
139 | 58a6c894 | Antony Chazapis | logger.debug("list_containers: %s %s %s %s", account, marker, limit, until)
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140 | 58a6c894 | Antony Chazapis | return self._list_objects(account, '', '/', marker, limit, False, [], until) |
141 | b956618e | Antony Chazapis | |
142 | 83dd59c5 | Antony Chazapis | def put_container(self, user, account, container): |
143 | b956618e | Antony Chazapis | """Create a new container with the given name."""
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144 | b956618e | Antony Chazapis | |
145 | 58a6c894 | Antony Chazapis | logger.debug("put_container: %s %s", account, container)
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146 | 22dab079 | Antony Chazapis | try:
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147 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container)
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148 | 22dab079 | Antony Chazapis | except NameError: |
149 | 58a6c894 | Antony Chazapis | path = os.path.join(account, container) |
150 | 58a6c894 | Antony Chazapis | version_id = self._put_version(path)
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151 | b956618e | Antony Chazapis | else:
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152 | b956618e | Antony Chazapis | raise NameError('Container already exists') |
153 | b956618e | Antony Chazapis | |
154 | 83dd59c5 | Antony Chazapis | def delete_container(self, user, account, container): |
155 | b956618e | Antony Chazapis | """Delete the container with the given name."""
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156 | b956618e | Antony Chazapis | |
157 | 58a6c894 | Antony Chazapis | logger.debug("delete_container: %s %s", account, container)
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158 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container)
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159 | 58a6c894 | Antony Chazapis | count, bytes, tstamp = self._get_pathstats(path) |
160 | 22dab079 | Antony Chazapis | if count > 0: |
161 | b956618e | Antony Chazapis | raise IndexError('Container is not empty') |
162 | 58a6c894 | Antony Chazapis | self._del_path(path) # Point of no return. |
163 | 58a6c894 | Antony Chazapis | self._copy_version(account, account, True, True) # New account version. |
164 | b956618e | Antony Chazapis | |
165 | 83dd59c5 | Antony Chazapis | def get_container_meta(self, user, account, container, until=None): |
166 | b956618e | Antony Chazapis | """Return a dictionary with the container metadata."""
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167 | b956618e | Antony Chazapis | |
168 | 58a6c894 | Antony Chazapis | logger.debug("get_container_meta: %s %s %s", account, container, until)
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169 | 58a6c894 | Antony Chazapis | |
170 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container, until)
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171 | 58a6c894 | Antony Chazapis | count, bytes, tstamp = self._get_pathstats(path, until) |
172 | 31a1c80d | Antony Chazapis | if mtime > tstamp:
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173 | 31a1c80d | Antony Chazapis | tstamp = mtime |
174 | 58a6c894 | Antony Chazapis | if until is None: |
175 | 58a6c894 | Antony Chazapis | modified = tstamp |
176 | 58a6c894 | Antony Chazapis | else:
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177 | 31a1c80d | Antony Chazapis | modified = self._get_pathstats(path)[2] # Overall last modification |
178 | 31a1c80d | Antony Chazapis | if mtime > modified:
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179 | 31a1c80d | Antony Chazapis | modified = mtime |
180 | 58a6c894 | Antony Chazapis | |
181 | 58a6c894 | Antony Chazapis | meta = self._get_metadata(path, version_id)
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182 | 58a6c894 | Antony Chazapis | meta.update({'name': container, 'count': count, 'bytes': bytes, 'modified': modified}) |
183 | 58a6c894 | Antony Chazapis | if until is not None: |
184 | 58a6c894 | Antony Chazapis | meta.update({'until_timestamp': tstamp})
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185 | b956618e | Antony Chazapis | return meta
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186 | b956618e | Antony Chazapis | |
187 | 83dd59c5 | Antony Chazapis | def update_container_meta(self, user, account, container, meta, replace=False): |
188 | b956618e | Antony Chazapis | """Update the metadata associated with the container."""
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189 | b956618e | Antony Chazapis | |
190 | 58a6c894 | Antony Chazapis | logger.debug("update_container_meta: %s %s %s %s", account, container, meta, replace)
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191 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container)
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192 | 58a6c894 | Antony Chazapis | self._put_metadata(path, meta, replace)
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193 | b956618e | Antony Chazapis | |
194 | 83dd59c5 | Antony Chazapis | def list_objects(self, user, account, container, prefix='', delimiter=None, marker=None, limit=10000, virtual=True, keys=[], until=None): |
195 | b956618e | Antony Chazapis | """Return a list of objects existing under a container."""
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196 | b956618e | Antony Chazapis | |
197 | 58a6c894 | Antony Chazapis | logger.debug("list_objects: %s %s %s %s %s %s %s", account, container, prefix, delimiter, marker, limit, until)
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198 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container, until)
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199 | 58a6c894 | Antony Chazapis | return self._list_objects(path, prefix, delimiter, marker, limit, virtual, keys, until) |
200 | 22dab079 | Antony Chazapis | |
201 | 83dd59c5 | Antony Chazapis | def list_object_meta(self, user, account, container, until=None): |
202 | 22dab079 | Antony Chazapis | """Return a list with all the container's object meta keys."""
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203 | b956618e | Antony Chazapis | |
204 | 58a6c894 | Antony Chazapis | logger.debug("list_object_meta: %s %s %s", account, container, until)
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205 | 58a6c894 | Antony Chazapis | path, version_id, mtime = self._get_containerinfo(account, container, until)
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206 | 58a6c894 | Antony Chazapis | sql = '''select distinct m.key from (%s) o, metadata m
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207 | 58a6c894 | Antony Chazapis | where m.version_id = o.version_id and o.name like ?'''
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208 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
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209 | 22dab079 | Antony Chazapis | c = self.con.execute(sql, (path + '/%',)) |
210 | 22dab079 | Antony Chazapis | return [x[0] for x in c.fetchall()] |
211 | b956618e | Antony Chazapis | |
212 | 83dd59c5 | Antony Chazapis | def get_object_meta(self, user, account, container, name, version=None): |
213 | b956618e | Antony Chazapis | """Return a dictionary with the object metadata."""
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214 | b956618e | Antony Chazapis | |
215 | 58a6c894 | Antony Chazapis | logger.debug("get_object_meta: %s %s %s %s", account, container, name, version)
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216 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_objectinfo(account, container, name, version)
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217 | 58a6c894 | Antony Chazapis | if version is None: |
218 | 58a6c894 | Antony Chazapis | modified = mtime |
219 | 58a6c894 | Antony Chazapis | else:
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220 | 58a6c894 | Antony Chazapis | modified = self._get_version(path)[1] # Overall last modification |
221 | 58a6c894 | Antony Chazapis | |
222 | 58a6c894 | Antony Chazapis | meta = self._get_metadata(path, version_id)
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223 | 58a6c894 | Antony Chazapis | meta.update({'name': name, 'bytes': size, 'version': version_id, 'version_timestamp': mtime, 'modified': modified}) |
224 | b956618e | Antony Chazapis | return meta
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225 | b956618e | Antony Chazapis | |
226 | 83dd59c5 | Antony Chazapis | def update_object_meta(self, user, account, container, name, meta, replace=False): |
227 | b956618e | Antony Chazapis | """Update the metadata associated with the object."""
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228 | b956618e | Antony Chazapis | |
229 | 22dab079 | Antony Chazapis | logger.debug("update_object_meta: %s %s %s %s %s", account, container, name, meta, replace)
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230 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_objectinfo(account, container, name)
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231 | 58a6c894 | Antony Chazapis | self._put_metadata(path, meta, replace)
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232 | b956618e | Antony Chazapis | |
233 | 3436eeb0 | Antony Chazapis | def get_object_permissions(self, user, account, container, name): |
234 | 3436eeb0 | Antony Chazapis | """Return a dictionary with the object permissions."""
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235 | 3436eeb0 | Antony Chazapis | |
236 | 3436eeb0 | Antony Chazapis | logger.debug("get_object_permissions: %s %s %s", account, container, name)
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237 | 3436eeb0 | Antony Chazapis | path = self._get_objectinfo(account, container, name)[0] |
238 | 3436eeb0 | Antony Chazapis | return self._get_permissions(path) |
239 | 3436eeb0 | Antony Chazapis | |
240 | 3436eeb0 | Antony Chazapis | def update_object_permissions(self, user, account, container, name, permissions): |
241 | 3436eeb0 | Antony Chazapis | """Update the permissions associated with the object."""
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242 | 3436eeb0 | Antony Chazapis | |
243 | 3436eeb0 | Antony Chazapis | logger.debug("update_object_permissions: %s %s %s %s", account, container, name, permissions)
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244 | 3436eeb0 | Antony Chazapis | path = self._get_objectinfo(account, container, name)[0] |
245 | 3436eeb0 | Antony Chazapis | r, w = self._check_permissions(path, permissions)
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246 | 3436eeb0 | Antony Chazapis | self._put_permissions(path, r, w)
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247 | 3436eeb0 | Antony Chazapis | |
248 | 83dd59c5 | Antony Chazapis | def get_object_hashmap(self, user, account, container, name, version=None): |
249 | 22dab079 | Antony Chazapis | """Return the object's size and a list with partial hashes."""
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250 | b956618e | Antony Chazapis | |
251 | 22dab079 | Antony Chazapis | logger.debug("get_object_hashmap: %s %s %s %s", account, container, name, version)
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252 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_objectinfo(account, container, name, version)
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253 | 58a6c894 | Antony Chazapis | sql = 'select block_id from hashmaps where version_id = ? order by pos asc'
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254 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (version_id,))
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255 | 22dab079 | Antony Chazapis | hashmap = [x[0] for x in c.fetchall()] |
256 | 22dab079 | Antony Chazapis | return size, hashmap
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257 | 22dab079 | Antony Chazapis | |
258 | 3436eeb0 | Antony Chazapis | def update_object_hashmap(self, user, account, container, name, size, hashmap, meta={}, replace_meta=False, permissions={}): |
259 | 22dab079 | Antony Chazapis | """Create/update an object with the specified size and partial hashes."""
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260 | b956618e | Antony Chazapis | |
261 | cfe6939d | Antony Chazapis | logger.debug("update_object_hashmap: %s %s %s %s %s", account, container, name, size, hashmap)
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262 | 58a6c894 | Antony Chazapis | path = self._get_containerinfo(account, container)[0] |
263 | 58a6c894 | Antony Chazapis | path = os.path.join(path, name) |
264 | 3436eeb0 | Antony Chazapis | if permissions:
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265 | 3436eeb0 | Antony Chazapis | r, w = self._check_permissions(path, permissions)
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266 | 83dd59c5 | Antony Chazapis | src_version_id, dest_version_id = self._copy_version(path, path, not replace_meta, False) |
267 | 58a6c894 | Antony Chazapis | sql = 'update versions set size = ? where version_id = ?'
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268 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (size, dest_version_id))
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269 | 58a6c894 | Antony Chazapis | # TODO: Check for block_id existence.
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270 | 22dab079 | Antony Chazapis | for i in range(len(hashmap)): |
271 | 22dab079 | Antony Chazapis | sql = 'insert or replace into hashmaps (version_id, pos, block_id) values (?, ?, ?)'
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272 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (dest_version_id, i, hashmap[i]))
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273 | 83dd59c5 | Antony Chazapis | for k, v in meta.iteritems(): |
274 | 83dd59c5 | Antony Chazapis | sql = 'insert or replace into metadata (version_id, key, value) values (?, ?, ?)'
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275 | 83dd59c5 | Antony Chazapis | self.con.execute(sql, (dest_version_id, k, v))
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276 | 3436eeb0 | Antony Chazapis | if permissions:
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277 | 3436eeb0 | Antony Chazapis | sql = 'insert or replace into permissions (name, read, write) values (?, ?, ?)'
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278 | 3436eeb0 | Antony Chazapis | self.con.execute(sql, (path, r, w))
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279 | 22dab079 | Antony Chazapis | self.con.commit()
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280 | 22dab079 | Antony Chazapis | |
281 | 3436eeb0 | Antony Chazapis | def copy_object(self, user, account, src_container, src_name, dest_container, dest_name, dest_meta={}, replace_meta=False, permissions={}, src_version=None): |
282 | 22dab079 | Antony Chazapis | """Copy an object's data and metadata."""
|
283 | b956618e | Antony Chazapis | |
284 | 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)
|
285 | 6d817842 | Antony Chazapis | self._get_containerinfo(account, src_container)
|
286 | 58a6c894 | Antony Chazapis | if src_version is None: |
287 | 58a6c894 | Antony Chazapis | src_path = self._get_objectinfo(account, src_container, src_name)[0] |
288 | 22dab079 | Antony Chazapis | else:
|
289 | 58a6c894 | Antony Chazapis | src_path = os.path.join(account, src_container, src_name) |
290 | 58a6c894 | Antony Chazapis | dest_path = self._get_containerinfo(account, dest_container)[0] |
291 | 58a6c894 | Antony Chazapis | dest_path = os.path.join(dest_path, dest_name) |
292 | 3436eeb0 | Antony Chazapis | if permissions:
|
293 | 3436eeb0 | Antony Chazapis | r, w = self._check_permissions(dest_path, permissions)
|
294 | 58a6c894 | Antony Chazapis | src_version_id, dest_version_id = self._copy_version(src_path, dest_path, not replace_meta, True, src_version) |
295 | 58a6c894 | Antony Chazapis | for k, v in dest_meta.iteritems(): |
296 | 58a6c894 | Antony Chazapis | sql = 'insert or replace into metadata (version_id, key, value) values (?, ?, ?)'
|
297 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (dest_version_id, k, v))
|
298 | 3436eeb0 | Antony Chazapis | if permissions:
|
299 | 3436eeb0 | Antony Chazapis | sql = 'insert or replace into permissions (name, read, write) values (?, ?, ?)'
|
300 | 3436eeb0 | Antony Chazapis | self.con.execute(sql, (dest_path, r, w))
|
301 | 58a6c894 | Antony Chazapis | self.con.commit()
|
302 | b956618e | Antony Chazapis | |
303 | 3436eeb0 | Antony Chazapis | def move_object(self, user, account, src_container, src_name, dest_container, dest_name, dest_meta={}, replace_meta=False, permissions={}): |
304 | b956618e | Antony Chazapis | """Move an object's data and metadata."""
|
305 | b956618e | Antony Chazapis | |
306 | 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)
|
307 | 3436eeb0 | Antony Chazapis | self.copy_object(user, account, src_container, src_name, dest_container, dest_name, dest_meta, replace_meta, permissions, None) |
308 | 83dd59c5 | Antony Chazapis | self.delete_object(user, account, src_container, src_name)
|
309 | b956618e | Antony Chazapis | |
310 | 83dd59c5 | Antony Chazapis | def delete_object(self, user, account, container, name): |
311 | b956618e | Antony Chazapis | """Delete an object."""
|
312 | b956618e | Antony Chazapis | |
313 | b956618e | Antony Chazapis | logger.debug("delete_object: %s %s %s", account, container, name)
|
314 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_objectinfo(account, container, name)
|
315 | 58a6c894 | Antony Chazapis | self._put_version(path, 0, 1) |
316 | 3436eeb0 | Antony Chazapis | sql = 'delete from permissions where name = ?'
|
317 | 3436eeb0 | Antony Chazapis | self.con.execute(sql, (path,))
|
318 | 3436eeb0 | Antony Chazapis | self.con.commit()
|
319 | 58a6c894 | Antony Chazapis | |
320 | 83dd59c5 | Antony Chazapis | def list_versions(self, user, account, container, name): |
321 | 83dd59c5 | Antony Chazapis | """Return a list of all (version, version_timestamp) tuples for an object."""
|
322 | 58a6c894 | Antony Chazapis | |
323 | 83dd59c5 | Antony Chazapis | logger.debug("list_versions: %s %s %s", account, container, name)
|
324 | 58a6c894 | Antony Chazapis | # This will even show deleted versions.
|
325 | 22dab079 | Antony Chazapis | path = os.path.join(account, container, name) |
326 | 58a6c894 | Antony Chazapis | sql = '''select distinct version_id, strftime('%s', tstamp) from versions where name = ?'''
|
327 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
328 | c9af0703 | Antony Chazapis | return [(int(x[0]), int(x[1])) for x in c.fetchall()] |
329 | b956618e | Antony Chazapis | |
330 | 22dab079 | Antony Chazapis | def get_block(self, hash): |
331 | 22dab079 | Antony Chazapis | """Return a block's data."""
|
332 | 22dab079 | Antony Chazapis | |
333 | cfe6939d | Antony Chazapis | logger.debug("get_block: %s", hash) |
334 | 22dab079 | Antony Chazapis | c = self.con.execute('select data from blocks where block_id = ?', (hash,)) |
335 | 22dab079 | Antony Chazapis | row = c.fetchone() |
336 | 22dab079 | Antony Chazapis | if row:
|
337 | 22dab079 | Antony Chazapis | return str(row[0]) |
338 | 22dab079 | Antony Chazapis | else:
|
339 | 22dab079 | Antony Chazapis | raise NameError('Block does not exist') |
340 | b956618e | Antony Chazapis | |
341 | 22dab079 | Antony Chazapis | def put_block(self, data): |
342 | 22dab079 | Antony Chazapis | """Create a block and return the hash."""
|
343 | 22dab079 | Antony Chazapis | |
344 | cfe6939d | Antony Chazapis | logger.debug("put_block: %s", len(data)) |
345 | 22dab079 | Antony Chazapis | h = hashlib.new(self.hash_algorithm)
|
346 | 22dab079 | Antony Chazapis | h.update(data.rstrip('\x00'))
|
347 | 22dab079 | Antony Chazapis | hash = h.hexdigest() |
348 | 22dab079 | Antony Chazapis | sql = 'insert or ignore into blocks (block_id, data) values (?, ?)'
|
349 | 22dab079 | Antony Chazapis | self.con.execute(sql, (hash, buffer(data))) |
350 | 22dab079 | Antony Chazapis | self.con.commit()
|
351 | 22dab079 | Antony Chazapis | return hash |
352 | 22dab079 | Antony Chazapis | |
353 | 22dab079 | Antony Chazapis | def update_block(self, hash, data, offset=0): |
354 | 22dab079 | Antony Chazapis | """Update a known block and return the hash."""
|
355 | 22dab079 | Antony Chazapis | |
356 | cfe6939d | Antony Chazapis | logger.debug("update_block: %s %s %s", hash, len(data), offset) |
357 | cfe6939d | Antony Chazapis | if offset == 0 and len(data) == self.block_size: |
358 | cfe6939d | Antony Chazapis | return self.put_block(data) |
359 | 22dab079 | Antony Chazapis | src_data = self.get_block(hash) |
360 | 22dab079 | Antony Chazapis | bs = self.block_size
|
361 | 22dab079 | Antony Chazapis | if offset < 0 or offset > bs or offset + len(data) > bs: |
362 | 22dab079 | Antony Chazapis | raise IndexError('Offset or data outside block limits') |
363 | 22dab079 | Antony Chazapis | dest_data = src_data[:offset] + data + src_data[offset + len(data):]
|
364 | 22dab079 | Antony Chazapis | return self.put_block(dest_data) |
365 | b956618e | Antony Chazapis | |
366 | 58a6c894 | Antony Chazapis | def _sql_until(self, until=None): |
367 | 58a6c894 | Antony Chazapis | """Return the sql to get the latest versions until the timestamp given."""
|
368 | 58a6c894 | Antony Chazapis | if until is None: |
369 | 58a6c894 | Antony Chazapis | until = int(time.time())
|
370 | 58a6c894 | Antony Chazapis | sql = '''select version_id, name, strftime('%s', tstamp) as tstamp, size from versions v
|
371 | 58a6c894 | Antony Chazapis | where version_id = (select max(version_id) from versions
|
372 | 58a6c894 | Antony Chazapis | where v.name = name and tstamp <= datetime(%s, 'unixepoch'))
|
373 | 58a6c894 | Antony Chazapis | and hide = 0'''
|
374 | 58a6c894 | Antony Chazapis | return sql % ('%s', until) |
375 | 58a6c894 | Antony Chazapis | |
376 | 58a6c894 | Antony Chazapis | def _get_pathstats(self, path, until=None): |
377 | 58a6c894 | Antony Chazapis | """Return count and sum of size of everything under path and latest timestamp."""
|
378 | 58a6c894 | Antony Chazapis | |
379 | 58a6c894 | Antony Chazapis | sql = 'select count(version_id), total(size), max(tstamp) from (%s) where name like ?'
|
380 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
|
381 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path + '/%',)) |
382 | b956618e | Antony Chazapis | row = c.fetchone() |
383 | 58a6c894 | Antony Chazapis | tstamp = row[2] if row[2] is not None else 0 |
384 | 58a6c894 | Antony Chazapis | return int(row[0]), int(row[1]), int(tstamp) |
385 | 58a6c894 | Antony Chazapis | |
386 | 58a6c894 | Antony Chazapis | def _get_version(self, path, version=None): |
387 | cb146cf9 | Antony Chazapis | if version is None: |
388 | 58a6c894 | Antony Chazapis | sql = '''select version_id, strftime('%s', tstamp), size, hide from versions where name = ?
|
389 | 58a6c894 | Antony Chazapis | order by version_id desc limit 1'''
|
390 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
391 | 58a6c894 | Antony Chazapis | row = c.fetchone() |
392 | 58a6c894 | Antony Chazapis | if not row or int(row[3]): |
393 | 58a6c894 | Antony Chazapis | raise NameError('Object does not exist') |
394 | b956618e | Antony Chazapis | else:
|
395 | 58a6c894 | Antony Chazapis | sql = '''select version_id, strftime('%s', tstamp), size from versions where name = ?
|
396 | 58a6c894 | Antony Chazapis | and version_id = ?'''
|
397 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path, version))
|
398 | 58a6c894 | Antony Chazapis | row = c.fetchone() |
399 | 58a6c894 | Antony Chazapis | if not row: |
400 | 58a6c894 | Antony Chazapis | raise IndexError('Version does not exist') |
401 | 58a6c894 | Antony Chazapis | return str(row[0]), int(row[1]), int(row[2]) |
402 | 58a6c894 | Antony Chazapis | |
403 | 58a6c894 | Antony Chazapis | def _put_version(self, path, size=0, hide=0): |
404 | 58a6c894 | Antony Chazapis | sql = 'insert into versions (name, size, hide) values (?, ?, ?)'
|
405 | 58a6c894 | Antony Chazapis | id = self.con.execute(sql, (path, size, hide)).lastrowid
|
406 | b956618e | Antony Chazapis | self.con.commit()
|
407 | b956618e | Antony Chazapis | return str(id) |
408 | b956618e | Antony Chazapis | |
409 | 58a6c894 | Antony Chazapis | def _copy_version(self, src_path, dest_path, copy_meta=True, copy_data=True, src_version=None): |
410 | 58a6c894 | Antony Chazapis | if src_version is not None: |
411 | 58a6c894 | Antony Chazapis | src_version_id, mtime, size = self._get_version(src_path, src_version)
|
412 | 58a6c894 | Antony Chazapis | else:
|
413 | 58a6c894 | Antony Chazapis | # Latest or create from scratch.
|
414 | 58a6c894 | Antony Chazapis | try:
|
415 | 58a6c894 | Antony Chazapis | src_version_id, mtime, size = self._get_version(src_path)
|
416 | 58a6c894 | Antony Chazapis | except NameError: |
417 | 58a6c894 | Antony Chazapis | src_version_id = None
|
418 | 58a6c894 | Antony Chazapis | size = 0
|
419 | 58a6c894 | Antony Chazapis | if not copy_data: |
420 | 58a6c894 | Antony Chazapis | size = 0
|
421 | 58a6c894 | Antony Chazapis | dest_version_id = self._put_version(dest_path, size)
|
422 | 58a6c894 | Antony Chazapis | if copy_meta and src_version_id is not None: |
423 | 58a6c894 | Antony Chazapis | sql = 'insert into metadata select %s, key, value from metadata where version_id = ?'
|
424 | 58a6c894 | Antony Chazapis | sql = sql % dest_version_id |
425 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (src_version_id,))
|
426 | 58a6c894 | Antony Chazapis | if copy_data and src_version_id is not None: |
427 | 58a6c894 | Antony Chazapis | sql = 'insert into hashmaps select %s, pos, block_id from hashmaps where version_id = ?'
|
428 | 58a6c894 | Antony Chazapis | sql = sql % dest_version_id |
429 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (src_version_id,))
|
430 | 58a6c894 | Antony Chazapis | self.con.commit()
|
431 | 58a6c894 | Antony Chazapis | return src_version_id, dest_version_id
|
432 | 58a6c894 | Antony Chazapis | |
433 | 58a6c894 | Antony Chazapis | def _get_versioninfo(self, account, container, name, until=None): |
434 | 58a6c894 | Antony Chazapis | """Return path, latest version, associated timestamp and size until the timestamp given."""
|
435 | 58a6c894 | Antony Chazapis | |
436 | 58a6c894 | Antony Chazapis | p = (account, container, name) |
437 | 22dab079 | Antony Chazapis | try:
|
438 | 58a6c894 | Antony Chazapis | p = p[:p.index(None)]
|
439 | 58a6c894 | Antony Chazapis | except ValueError: |
440 | 58a6c894 | Antony Chazapis | pass
|
441 | 58a6c894 | Antony Chazapis | path = os.path.join(*p) |
442 | 58a6c894 | Antony Chazapis | sql = '''select version_id, tstamp, size from (%s) where name = ?'''
|
443 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
|
444 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
445 | 58a6c894 | Antony Chazapis | row = c.fetchone() |
446 | 58a6c894 | Antony Chazapis | if row is None: |
447 | 58a6c894 | Antony Chazapis | raise NameError('Path does not exist') |
448 | 58a6c894 | Antony Chazapis | return path, str(row[0]), int(row[1]), int(row[2]) |
449 | 58a6c894 | Antony Chazapis | |
450 | 58a6c894 | Antony Chazapis | def _get_accountinfo(self, account, until=None): |
451 | 58a6c894 | Antony Chazapis | try:
|
452 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_versioninfo(account, None, None, until) |
453 | 58a6c894 | Antony Chazapis | return version_id, mtime
|
454 | 58a6c894 | Antony Chazapis | except:
|
455 | 58a6c894 | Antony Chazapis | raise NameError('Account does not exist') |
456 | 58a6c894 | Antony Chazapis | |
457 | 58a6c894 | Antony Chazapis | def _get_containerinfo(self, account, container, until=None): |
458 | 58a6c894 | Antony Chazapis | try:
|
459 | 58a6c894 | Antony Chazapis | path, version_id, mtime, size = self._get_versioninfo(account, container, None, until) |
460 | 58a6c894 | Antony Chazapis | return path, version_id, mtime
|
461 | 58a6c894 | Antony Chazapis | except:
|
462 | 22dab079 | Antony Chazapis | raise NameError('Container does not exist') |
463 | 22dab079 | Antony Chazapis | |
464 | 22dab079 | Antony Chazapis | def _get_objectinfo(self, account, container, name, version=None): |
465 | 22dab079 | Antony Chazapis | path = os.path.join(account, container, name) |
466 | 58a6c894 | Antony Chazapis | version_id, mtime, size = self._get_version(path, version)
|
467 | 58a6c894 | Antony Chazapis | return path, version_id, mtime, size
|
468 | 22dab079 | Antony Chazapis | |
469 | 58a6c894 | Antony Chazapis | def _get_metadata(self, path, version): |
470 | 58a6c894 | Antony Chazapis | sql = 'select key, value from metadata where version_id = ?'
|
471 | 58a6c894 | Antony Chazapis | c = self.con.execute(sql, (version,))
|
472 | 58a6c894 | Antony Chazapis | return dict(c.fetchall()) |
473 | 58a6c894 | Antony Chazapis | |
474 | 58a6c894 | Antony Chazapis | def _put_metadata(self, path, meta, replace=False): |
475 | 58a6c894 | Antony Chazapis | """Create a new version and store metadata."""
|
476 | 58a6c894 | Antony Chazapis | |
477 | 58a6c894 | Antony Chazapis | src_version_id, dest_version_id = self._copy_version(path, path, not replace, True) |
478 | 58a6c894 | Antony Chazapis | for k, v in meta.iteritems(): |
479 | 58a6c894 | Antony Chazapis | sql = 'insert or replace into metadata (version_id, key, value) values (?, ?, ?)'
|
480 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (dest_version_id, k, v))
|
481 | 58a6c894 | Antony Chazapis | self.con.commit()
|
482 | 58a6c894 | Antony Chazapis | |
483 | 3436eeb0 | Antony Chazapis | def _can_read(self, user, path): |
484 | 3436eeb0 | Antony Chazapis | return True |
485 | 3436eeb0 | Antony Chazapis | |
486 | 3436eeb0 | Antony Chazapis | def _can_write(self, user, path): |
487 | 3436eeb0 | Antony Chazapis | return True |
488 | 3436eeb0 | Antony Chazapis | |
489 | 3436eeb0 | Antony Chazapis | def _check_permissions(self, path, permissions): |
490 | 3436eeb0 | Antony Chazapis | # Check for existing permissions.
|
491 | 3436eeb0 | Antony Chazapis | sql = '''select name from permissions
|
492 | 3436eeb0 | Antony Chazapis | where name != ? and (name like ? or ? like name || ?)'''
|
493 | 3436eeb0 | Antony Chazapis | c = self.con.execute(sql, (path, path + '%', path, '%')) |
494 | 3436eeb0 | Antony Chazapis | if c.fetchall() is not None: |
495 | 3436eeb0 | Antony Chazapis | raise AttributeError('Permissions already set') |
496 | 3436eeb0 | Antony Chazapis | |
497 | 3436eeb0 | Antony Chazapis | # Format given permissions set.
|
498 | 3436eeb0 | Antony Chazapis | r = permissions.get('read', [])
|
499 | 3436eeb0 | Antony Chazapis | w = permissions.get('write', [])
|
500 | 3436eeb0 | Antony Chazapis | if True in [False or '*' in x or ',' in x for x in r]: |
501 | 3436eeb0 | Antony Chazapis | raise ValueError('Bad characters in read permissions') |
502 | 3436eeb0 | Antony Chazapis | if True in [False or '*' in x or ',' in x for x in w]: |
503 | 3436eeb0 | Antony Chazapis | raise ValueError('Bad characters in write permissions') |
504 | 3436eeb0 | Antony Chazapis | r = ','.join(r)
|
505 | 3436eeb0 | Antony Chazapis | w = ','.join(w)
|
506 | 3436eeb0 | Antony Chazapis | if 'public' in permissions: |
507 | 3436eeb0 | Antony Chazapis | r = '*'
|
508 | 3436eeb0 | Antony Chazapis | if 'private' in permissions: |
509 | 3436eeb0 | Antony Chazapis | r = ''
|
510 | 3436eeb0 | Antony Chazapis | w = ''
|
511 | 3436eeb0 | Antony Chazapis | return r, w
|
512 | 3436eeb0 | Antony Chazapis | |
513 | 3436eeb0 | Antony Chazapis | def _get_permissions(self, path): |
514 | 3436eeb0 | Antony Chazapis | sql = 'select read, write from permissions where name = ?'
|
515 | 3436eeb0 | Antony Chazapis | c = self.con.execute(sql, (path,))
|
516 | 3436eeb0 | Antony Chazapis | row = c.fetchone() |
517 | 3436eeb0 | Antony Chazapis | if not row: |
518 | 3436eeb0 | Antony Chazapis | return {}
|
519 | 3436eeb0 | Antony Chazapis | |
520 | 3436eeb0 | Antony Chazapis | r, w = row |
521 | 3436eeb0 | Antony Chazapis | if r == '' and w == '': |
522 | 3436eeb0 | Antony Chazapis | return {'private': True} |
523 | 3436eeb0 | Antony Chazapis | ret = {} |
524 | 3436eeb0 | Antony Chazapis | if w != '': |
525 | 3436eeb0 | Antony Chazapis | ret['write'] = w.split(',') |
526 | 3436eeb0 | Antony Chazapis | if r != '': |
527 | 3436eeb0 | Antony Chazapis | if r == '*': |
528 | 3436eeb0 | Antony Chazapis | ret['public'] = True |
529 | 3436eeb0 | Antony Chazapis | else:
|
530 | 3436eeb0 | Antony Chazapis | ret['read'] = r.split(',') |
531 | 3436eeb0 | Antony Chazapis | return ret
|
532 | 3436eeb0 | Antony Chazapis | |
533 | 3436eeb0 | Antony Chazapis | def _put_permissions(self, path, r, w): |
534 | 3436eeb0 | Antony Chazapis | sql = 'insert or replace into permissions (name, read, write) values (?, ?, ?)'
|
535 | 3436eeb0 | Antony Chazapis | self.con.execute(sql, (path, r, w))
|
536 | 3436eeb0 | Antony Chazapis | self.con.commit()
|
537 | 3436eeb0 | Antony Chazapis | |
538 | 58a6c894 | Antony Chazapis | def _list_objects(self, path, prefix='', delimiter=None, marker=None, limit=10000, virtual=True, keys=[], until=None): |
539 | 22dab079 | Antony Chazapis | cont_prefix = path + '/'
|
540 | 22dab079 | Antony Chazapis | if keys and len(keys) > 0: |
541 | 58a6c894 | Antony Chazapis | sql = '''select distinct o.name, o.version_id from (%s) o, metadata m where o.name like ? and
|
542 | 58a6c894 | Antony Chazapis | m.version_id = o.version_id and m.key in (%s) order by o.name'''
|
543 | 58a6c894 | Antony Chazapis | sql = sql % (self._sql_until(until), ', '.join('?' * len(keys))) |
544 | 22dab079 | Antony Chazapis | param = (cont_prefix + prefix + '%',) + tuple(keys) |
545 | 22dab079 | Antony Chazapis | else:
|
546 | 58a6c894 | Antony Chazapis | sql = 'select name, version_id from (%s) where name like ? order by name'
|
547 | 58a6c894 | Antony Chazapis | sql = sql % self._sql_until(until)
|
548 | 22dab079 | Antony Chazapis | param = (cont_prefix + prefix + '%',)
|
549 | 22dab079 | Antony Chazapis | c = self.con.execute(sql, param)
|
550 | 58a6c894 | Antony Chazapis | objects = [(x[0][len(cont_prefix):], x[1]) for x in c.fetchall()] |
551 | 22dab079 | Antony Chazapis | if delimiter:
|
552 | 22dab079 | Antony Chazapis | pseudo_objects = [] |
553 | 22dab079 | Antony Chazapis | for x in objects: |
554 | 58a6c894 | Antony Chazapis | pseudo_name = x[0]
|
555 | 22dab079 | Antony Chazapis | i = pseudo_name.find(delimiter, len(prefix))
|
556 | 22dab079 | Antony Chazapis | if not virtual: |
557 | 22dab079 | Antony Chazapis | # If the delimiter is not found, or the name ends
|
558 | 22dab079 | Antony Chazapis | # with the delimiter's first occurence.
|
559 | 22dab079 | Antony Chazapis | if i == -1 or len(pseudo_name) == i + len(delimiter): |
560 | 58a6c894 | Antony Chazapis | pseudo_objects.append(x) |
561 | 22dab079 | Antony Chazapis | else:
|
562 | 22dab079 | Antony Chazapis | # If the delimiter is found, keep up to (and including) the delimiter.
|
563 | 22dab079 | Antony Chazapis | if i != -1: |
564 | 22dab079 | Antony Chazapis | pseudo_name = pseudo_name[:i + len(delimiter)]
|
565 | 58a6c894 | Antony Chazapis | if pseudo_name not in [y[0] for y in pseudo_objects]: |
566 | 83dd59c5 | Antony Chazapis | if pseudo_name == x[0]: |
567 | 83dd59c5 | Antony Chazapis | pseudo_objects.append(x) |
568 | 83dd59c5 | Antony Chazapis | else:
|
569 | 83dd59c5 | Antony Chazapis | pseudo_objects.append((pseudo_name, None))
|
570 | 22dab079 | Antony Chazapis | objects = pseudo_objects |
571 | 22dab079 | Antony Chazapis | |
572 | 22dab079 | Antony Chazapis | start = 0
|
573 | 22dab079 | Antony Chazapis | if marker:
|
574 | 22dab079 | Antony Chazapis | try:
|
575 | 58a6c894 | Antony Chazapis | start = [x[0] for x in objects].index(marker) + 1 |
576 | 22dab079 | Antony Chazapis | except ValueError: |
577 | 22dab079 | Antony Chazapis | pass
|
578 | 22dab079 | Antony Chazapis | if not limit or limit > 10000: |
579 | 22dab079 | Antony Chazapis | limit = 10000
|
580 | 22dab079 | Antony Chazapis | return objects[start:start + limit]
|
581 | 22dab079 | Antony Chazapis | |
582 | 58a6c894 | Antony Chazapis | def _del_path(self, path): |
583 | 22dab079 | Antony Chazapis | sql = '''delete from hashmaps where version_id in
|
584 | 58a6c894 | Antony Chazapis | (select version_id from versions where name = ?)'''
|
585 | 58a6c894 | Antony Chazapis | self.con.execute(sql, (path,))
|
586 | 58a6c894 | Antony Chazapis | sql = '''delete from metadata where version_id in
|
587 | 58a6c894 | Antony Chazapis | (select version_id from versions where name = ?)'''
|
588 | 22dab079 | Antony Chazapis | self.con.execute(sql, (path,))
|
589 | 58a6c894 | Antony Chazapis | sql = '''delete from versions where name = ?'''
|
590 | b956618e | Antony Chazapis | self.con.execute(sql, (path,))
|
591 | 3436eeb0 | Antony Chazapis | sql = '''delete from permissions where name like ?'''
|
592 | 3436eeb0 | Antony Chazapis | self.con.execute(sql, (path + '%',)) # Redundant. |
593 | b956618e | Antony Chazapis | self.con.commit() |