prosody
72cfbe377326
util/datamanager.lua

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util/datamanager.lua @ 8013:72cfbe377326

util.datamanager: Rearrange locals
author Kim Alvefur <zash@zash.se>
date Tue, 28 Mar 2017 17:31:24 +0200
parent 8011:f8ba814fe029
child 8014:ff3787033abb
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1 -- Prosody IM
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2 -- Copyright (C) 2008-2010 Matthew Wild
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3 -- Copyright (C) 2008-2010 Waqas Hussain
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4 --
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b1885732e979 GPL->MIT!
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5 -- This project is MIT/X11 licensed. Please see the
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6 -- COPYING file in the source package for more information.
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7 --
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8
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9
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10 local format = string.format;
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11 local setmetatable = setmetatable;
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12 local ipairs = ipairs;
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13 local char = string.char;
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14 local pcall = pcall;
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15 local log = require "util.logger".init("datamanager");
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16 local io_open = io.open;
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17 local os_remove = os.remove;
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18 local os_rename = os.rename;
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19 local tonumber = tonumber;
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20 local next = next;
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21 local type = type;
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22 local t_insert = table.insert;
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23 local t_concat = table.concat;
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24 local envloadfile = require"util.envload".envloadfile;
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25 local serialize = require "util.serialization".serialize;
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26 local lfs = require "lfs";
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27 -- Extract directory seperator from package.config (an undocumented string that comes with lua)
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28 local path_separator = assert ( package.config:match ( "^([^\n]+)" ) , "package.config not in standard form" )
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29
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30 local prosody = prosody;
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31
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32 local raw_mkdir = lfs.mkdir;
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33 local atomic_append;
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34 local ENOENT = 2;
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35 pcall(function()
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36 local pposix = require "util.pposix";
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37 raw_mkdir = pposix.mkdir or raw_mkdir; -- Doesn't trample on umask
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38 atomic_append = pposix.atomic_append;
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39 ENOENT = pposix.ENOENT or ENOENT;
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40 end);
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41
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42 local _ENV = nil;
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43
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44 ---- utils -----
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45 local encode, decode;
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46 do
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47 local urlcodes = setmetatable({}, { __index = function (t, k) t[k] = char(tonumber(k, 16)); return t[k]; end });
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48
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49 decode = function (s)
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50 return s and (s:gsub("%%(%x%x)", urlcodes));
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51 end
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52
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53 encode = function (s)
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54 return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end));
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55 end
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56 end
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57
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58 if not atomic_append then
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59 function atomic_append(f, data)
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60 local pos = f:seek();
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61 if not f:write(data) or not f:flush() then
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62 f:seek("set", pos);
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63 f:write((" "):rep(#data));
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64 f:flush();
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65 return nil, "write-failed";
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66 end
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67 return true;
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68 end
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69 end
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70
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71 local _mkdir = {};
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72 local function mkdir(path)
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73 path = path:gsub("/", path_separator); -- TODO as an optimization, do this during path creation rather than here
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74 if not _mkdir[path] then
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75 raw_mkdir(path);
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76 _mkdir[path] = true;
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77 end
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78 return path;
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79 end
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80
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81 local data_path = (prosody and prosody.paths and prosody.paths.data) or ".";
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82 local callbacks = {};
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83
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84 ------- API -------------
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85
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86 local function set_data_path(path)
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87 log("debug", "Setting data path to: %s", path);
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88 data_path = path;
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89 end
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90
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91 local function callback(username, host, datastore, data)
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92 for _, f in ipairs(callbacks) do
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93 username, host, datastore, data = f(username, host, datastore, data);
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94 if username == false then break; end
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95 end
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96
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97 return username, host, datastore, data;
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98 end
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99 local function add_callback(func)
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100 if not callbacks[func] then -- Would you really want to set the same callback more than once?
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101 callbacks[func] = true;
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102 callbacks[#callbacks+1] = func;
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103 return true;
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104 end
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105 end
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106 local function remove_callback(func)
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107 if callbacks[func] then
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108 for i, f in ipairs(callbacks) do
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109 if f == func then
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110 callbacks[i] = nil;
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111 callbacks[f] = nil;
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112 return true;
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113 end
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114 end
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115 end
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116 end
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117
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118 local function getpath(username, host, datastore, ext, create)
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119 ext = ext or "dat";
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120 host = (host and encode(host)) or "_global";
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121 username = username and encode(username);
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122 if username then
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123 if create then mkdir(mkdir(mkdir(data_path).."/"..host).."/"..datastore); end
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124 return format("%s/%s/%s/%s.%s", data_path, host, datastore, username, ext);
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125 else
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126 if create then mkdir(mkdir(data_path).."/"..host); end
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127 return format("%s/%s/%s.%s", data_path, host, datastore, ext);
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128 end
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129 end
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130
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131 local function load(username, host, datastore)
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132 local data, err, errno = envloadfile(getpath(username, host, datastore), {});
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
133 if not data then
7925
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
134 if errno == ENOENT then
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
135 -- No such file, ok to ignore
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
136 return nil;
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
137 end
7996
f4c0fb54e16c util.datamanager: Remove check for file non-existence since ENOENT tells us that already
Kim Alvefur <zash@zash.se>
parents: 7995
diff changeset
138 log("error", "Failed to load %s storage ('%s') for user: %s@%s", datastore, err, username or "nil", host or "nil");
f4c0fb54e16c util.datamanager: Remove check for file non-existence since ENOENT tells us that already
Kim Alvefur <zash@zash.se>
parents: 7995
diff changeset
139 return nil, "Error reading storage";
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
140 end
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4452
diff changeset
141
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
142 local success, ret = pcall(data);
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
143 if not success then
4993
5243b74a4cbb Hopefully inert commit to clean up logging across a number of modules, removing all cases of concatenation when building log messages
Matthew Wild <mwild1@gmail.com>
parents: 4452
diff changeset
144 log("error", "Unable to load %s storage ('%s') for user: %s@%s", datastore, ret, username or "nil", host or "nil");
3086
931acb1188b1 util.datamanager: When failing to load a file, and the file exists, return nil, error.
Waqas Hussain <waqas20@gmail.com>
parents: 2925
diff changeset
145 return nil, "Error reading storage";
117
8e5c5e6a3240 Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
Waqas Hussain <waqas20@gmail.com>
parents: 88
diff changeset
146 end
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
147 return ret;
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
148 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
149
5049
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
150 local function atomic_store(filename, data)
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
151 local scratch = filename.."~";
7925
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
152 local f, ok, msg, errno;
5049
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
153
7925
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
154 f, msg, errno = io_open(scratch, "w");
7202
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
155 if not f then
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
156 return nil, msg;
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
157 end
5049
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
158
7202
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
159 ok, msg = f:write(data);
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
160 if not ok then
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
161 f:close();
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
162 os_remove(scratch);
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
163 return nil, msg;
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
164 end
5049
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
165
7202
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
166 ok, msg = f:close();
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
167 if not ok then
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
168 os_remove(scratch);
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
169 return nil, msg;
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
170 end
5049
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
171
7202
5bf0ff3882aa util.datamanager: Explicit handling of each error condition (see #632)
Kim Alvefur <zash@zash.se>
parents: 7201
diff changeset
172 return os_rename(scratch, filename);
5049
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
173 end
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
174
6575
bdaadf70a48f util.datamanager: Check that the global 'prosody' exists before using it (fixes nil indexing in use outside of prosody)
Kim Alvefur <zash@zash.se>
parents: 5441
diff changeset
175 if prosody and prosody.platform ~= "posix" then
5065
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
176 -- os.rename does not overwrite existing files on Windows
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
177 -- TODO We could use Transactional NTFS on Vista and above
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
178 function atomic_store(filename, data)
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
179 local f, err = io_open(filename, "w");
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
180 if not f then return f, err; end
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
181 local ok, msg = f:write(data);
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
182 if not ok then f:close(); return ok, msg; end
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
183 return f:close();
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
184 end
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
185 end
acfaf771f10e util.datamanager: Don't use os.rename on non-POSIX. It doesn't overwrite exisitng files on Windows.
Waqas Hussain <waqas20@gmail.com>
parents: 5057
diff changeset
186
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
187 local function store(username, host, datastore, data)
206
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
188 if not data then
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
189 data = {};
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
190 end
1381
46a58df8557d util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
Matthew Wild <mwild1@gmail.com>
parents: 1097
diff changeset
191
46a58df8557d util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
Matthew Wild <mwild1@gmail.com>
parents: 1097
diff changeset
192 username, host, datastore, data = callback(username, host, datastore, data);
1462
44780b856ce7 datamanager: Fixed incorrect callback result checking
Waqas Hussain <waqas20@gmail.com>
parents: 1381
diff changeset
193 if username == false then
1381
46a58df8557d util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
Matthew Wild <mwild1@gmail.com>
parents: 1097
diff changeset
194 return true; -- Don't save this data at all
46a58df8557d util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
Matthew Wild <mwild1@gmail.com>
parents: 1097
diff changeset
195 end
46a58df8557d util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
Matthew Wild <mwild1@gmail.com>
parents: 1097
diff changeset
196
206
e30d0e30a0ff Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents: 182
diff changeset
197 -- save the datastore
5049
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Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
198 local d = "return " .. serialize(data) .. ";\n";
5441
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
199 local mkdir_cache_cleared;
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
200 repeat
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
201 local ok, msg = atomic_store(getpath(username, host, datastore, nil, true), d);
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
202 if not ok then
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
203 if not mkdir_cache_cleared then -- We may need to recreate a removed directory
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
204 _mkdir = {};
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
205 mkdir_cache_cleared = true;
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
206 else
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
207 log("error", "Unable to write to %s storage ('%s') for user: %s@%s", datastore, msg, username or "nil", host or "nil");
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
208 return nil, "Error saving to storage";
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
209 end
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
210 end
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
211 if next(data) == nil then -- try to delete empty datastore
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
212 log("debug", "Removing empty %s datastore for user %s@%s", datastore, username or "nil", host or "nil");
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
213 os_remove(getpath(username, host, datastore));
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
214 end
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
215 -- we write data even when we are deleting because lua doesn't have a
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
216 -- platform independent way of checking for non-exisitng files
6a5c622cc6d4 util.datamanager: Clear the cache of created directories on storage failure, and retry
Matthew Wild <mwild1@gmail.com>
parents: 5440
diff changeset
217 until ok;
0
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
218 return true;
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
219 end
3e3171b59028 First commit, where do you want to go tomorrow?
matthew
parents:
diff changeset
220
6999
0ad66d12113a util.datamanager: Add some comments about the append function
Kim Alvefur <zash@zash.se>
parents: 6998
diff changeset
221 -- Append a blob of data to a file
6992
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
222 local function append(username, host, datastore, ext, data)
7000
2b57f77985a3 util.datamanager: Make sure only strings are passed as data to append()
Kim Alvefur <zash@zash.se>
parents: 6999
diff changeset
223 if type(data) ~= "string" then return; end
6994
507301531cf5 util.datamanager: In append() collect status when closing file handle as it may fail (eg the implied flush)
Kim Alvefur <zash@zash.se>
parents: 6993
diff changeset
224 local filename = getpath(username, host, datastore, ext, true);
6996
644b1bddc676 util.datamanager: No shadowing of variable [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6995
diff changeset
225
8013
72cfbe377326 util.datamanager: Rearrange locals
Kim Alvefur <zash@zash.se>
parents: 8011
diff changeset
226 local f = io_open(filename, "r+");
5066
4be7093edde9 util.datamanager: Try to open in read+write mode, then retry with write mode if that fails (usually because it doesn't exist)
Kim Alvefur <zash@zash.se>
parents: 5057
diff changeset
227 if not f then
7928
9d014aca766f util.datamanager: Use atomic store function when writing the first entry of a list
Kim Alvefur <zash@zash.se>
parents: 7927
diff changeset
228 return atomic_store(filename, data);
6999
0ad66d12113a util.datamanager: Add some comments about the append function
Kim Alvefur <zash@zash.se>
parents: 6998
diff changeset
229 -- File did probably not exist, let's create it
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
230 end
6999
0ad66d12113a util.datamanager: Add some comments about the append function
Kim Alvefur <zash@zash.se>
parents: 6998
diff changeset
231
5045
4ba6940deed0 util.datamanager: Use pposix.fallocate() to make sure appends succeed. Also add a fallback fallocate()
Kim Alvefur <zash@zash.se>
parents: 5038
diff changeset
232 local pos = f:seek("end");
6997
0ab228bc21c6 util.datamanager: Handle potential issues from fallocate
Kim Alvefur <zash@zash.se>
parents: 6996
diff changeset
233
8013
72cfbe377326 util.datamanager: Rearrange locals
Kim Alvefur <zash@zash.se>
parents: 8011
diff changeset
234 local ok, msg = atomic_append(f, data);
6997
0ab228bc21c6 util.datamanager: Handle potential issues from fallocate
Kim Alvefur <zash@zash.se>
parents: 6996
diff changeset
235
6998
86607fe755b6 util.datamanager: Handle potential error from :write() call
Kim Alvefur <zash@zash.se>
parents: 6997
diff changeset
236 if not ok then
86607fe755b6 util.datamanager: Handle potential error from :write() call
Kim Alvefur <zash@zash.se>
parents: 6997
diff changeset
237 f:close();
7001
2743759ca1b5 util.datamanager: Return extra location info
Kim Alvefur <zash@zash.se>
parents: 7000
diff changeset
238 return ok, msg, "write";
6992
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
239 end
6994
507301531cf5 util.datamanager: In append() collect status when closing file handle as it may fail (eg the implied flush)
Kim Alvefur <zash@zash.se>
parents: 6993
diff changeset
240
507301531cf5 util.datamanager: In append() collect status when closing file handle as it may fail (eg the implied flush)
Kim Alvefur <zash@zash.se>
parents: 6993
diff changeset
241 ok, msg = f:close();
507301531cf5 util.datamanager: In append() collect status when closing file handle as it may fail (eg the implied flush)
Kim Alvefur <zash@zash.se>
parents: 6993
diff changeset
242 if not ok then
507301531cf5 util.datamanager: In append() collect status when closing file handle as it may fail (eg the implied flush)
Kim Alvefur <zash@zash.se>
parents: 6993
diff changeset
243 return ok, msg;
507301531cf5 util.datamanager: In append() collect status when closing file handle as it may fail (eg the implied flush)
Kim Alvefur <zash@zash.se>
parents: 6993
diff changeset
244 end
507301531cf5 util.datamanager: In append() collect status when closing file handle as it may fail (eg the implied flush)
Kim Alvefur <zash@zash.se>
parents: 6993
diff changeset
245
7001
2743759ca1b5 util.datamanager: Return extra location info
Kim Alvefur <zash@zash.se>
parents: 7000
diff changeset
246 return true, pos;
6992
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
247 end
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
248
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
249 local function list_append(username, host, datastore, data)
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
250 if not data then return; end
1462
44780b856ce7 datamanager: Fixed incorrect callback result checking
Waqas Hussain <waqas20@gmail.com>
parents: 1381
diff changeset
251 if callback(username, host, datastore) == false then return true; end
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
252 -- save the datastore
6992
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
253
6993
dc0c6b8dc638 util.datamanager: Overwrite 'data' variable instead of shadownig it [luacheck]
Kim Alvefur <zash@zash.se>
parents: 6992
diff changeset
254 data = "item(" .. serialize(data) .. ");\n";
6992
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
255 local ok, msg = append(username, host, datastore, "list", data);
0622f2820d1d util.datamanager: Factor out code for appending bytes to a file
Kim Alvefur <zash@zash.se>
parents: 6777
diff changeset
256 if not ok then
5045
4ba6940deed0 util.datamanager: Use pposix.fallocate() to make sure appends succeed. Also add a fallback fallocate()
Kim Alvefur <zash@zash.se>
parents: 5038
diff changeset
257 log("error", "Unable to write to %s storage ('%s') for user: %s@%s", datastore, msg, username or "nil", host or "nil");
4ba6940deed0 util.datamanager: Use pposix.fallocate() to make sure appends succeed. Also add a fallback fallocate()
Kim Alvefur <zash@zash.se>
parents: 5038
diff changeset
258 return ok, msg;
4ba6940deed0 util.datamanager: Use pposix.fallocate() to make sure appends succeed. Also add a fallback fallocate()
Kim Alvefur <zash@zash.se>
parents: 5038
diff changeset
259 end
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
260 return true;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
261 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
262
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
263 local function list_store(username, host, datastore, data)
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
264 if not data then
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
265 data = {};
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
266 end
1462
44780b856ce7 datamanager: Fixed incorrect callback result checking
Waqas Hussain <waqas20@gmail.com>
parents: 1381
diff changeset
267 if callback(username, host, datastore) == false then return true; end
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
268 -- save the datastore
5049
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
269 local d = {};
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
270 for _, item in ipairs(data) do
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
271 d[#d+1] = "item(" .. serialize(item) .. ");\n";
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
272 end
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
273 local ok, msg = atomic_store(getpath(username, host, datastore, "list", true), t_concat(d));
5d685f123332 util.datamanager: Write to a temporary file and atomically move it into place
Kim Alvefur <zash@zash.se>
parents: 5045
diff changeset
274 if not ok then
4993
5243b74a4cbb Hopefully inert commit to clean up logging across a number of modules, removing all cases of concatenation when building log messages
Matthew Wild <mwild1@gmail.com>
parents: 4452
diff changeset
275 log("error", "Unable to write to %s storage ('%s') for user: %s@%s", datastore, msg, username or "nil", host or "nil");
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
276 return;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
277 end
915
0fe5bf7ab81d util.datamanager: Don't delete data when first entry in table is 'false'. My favourite bug so far.
Matthew Wild <mwild1@gmail.com>
parents: 896
diff changeset
278 if next(data) == nil then -- try to delete empty datastore
1732
f1282fad2f99 datamanager: Fixed logging errors on deletion of datastores not owned by a user@host
Waqas Hussain <waqas20@gmail.com>
parents: 1523
diff changeset
279 log("debug", "Removing empty %s datastore for user %s@%s", datastore, username or "nil", host or "nil");
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
280 os_remove(getpath(username, host, datastore, "list"));
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
281 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
282 -- we write data even when we are deleting because lua doesn't have a
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
283 -- platform independent way of checking for non-exisitng files
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
284 return true;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
285 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
286
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
287 local function list_load(username, host, datastore)
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4452
diff changeset
288 local items = {};
7925
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
289 local data, err, errno = envloadfile(getpath(username, host, datastore, "list"), {item = function(i) t_insert(items, i); end});
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
290 if not data then
7925
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
291 if errno == ENOENT then
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
292 -- No such file, ok to ignore
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
293 return nil;
209503ee3aaa util.datamanager: Ignore ENOENT (no such file) when loading data
Kim Alvefur <zash@zash.se>
parents: 7734
diff changeset
294 end
7996
f4c0fb54e16c util.datamanager: Remove check for file non-existence since ENOENT tells us that already
Kim Alvefur <zash@zash.se>
parents: 7995
diff changeset
295 log("error", "Failed to load %s storage ('%s') for user: %s@%s", datastore, err, username or "nil", host or "nil");
f4c0fb54e16c util.datamanager: Remove check for file non-existence since ENOENT tells us that already
Kim Alvefur <zash@zash.se>
parents: 7995
diff changeset
296 return nil, "Error reading storage";
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
297 end
5021
85b2689dbcfe Eliminate direct setfenv usage
Florian Zeitz <florob@babelmonkeys.de>
parents: 4452
diff changeset
298
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
299 local success, ret = pcall(data);
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
300 if not success then
4993
5243b74a4cbb Hopefully inert commit to clean up logging across a number of modules, removing all cases of concatenation when building log messages
Matthew Wild <mwild1@gmail.com>
parents: 4452
diff changeset
301 log("error", "Unable to load %s storage ('%s') for user: %s@%s", datastore, ret, username or "nil", host or "nil");
3723
72a917d910a4 util.datamanager: Return an error string when pcall fails on a loaded list file.
Waqas Hussain <waqas20@gmail.com>
parents: 3722
diff changeset
302 return nil, "Error reading storage";
247
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
303 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
304 return items;
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
305 end
681b29aa134f Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
Waqas Hussain <waqas20@gmail.com>
parents: 206
diff changeset
306
5130
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
307 local type_map = {
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
308 keyval = "dat";
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
309 list = "list";
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
310 }
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
311
7674
8027eecc750f util.datamanager: Add annotations to ignore name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7673
diff changeset
312 local function users(host, store, typ) -- luacheck: ignore 431/store
5153
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
313 typ = type_map[typ or "keyval"];
5250
6d8ec8c90240 util.datamanager: Don't escape the name of a store
Kim Alvefur <zash@zash.se>
parents: 5244
diff changeset
314 local store_dir = format("%s/%s/%s", data_path, encode(host), store);
5153
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
315
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
316 local mode, err = lfs.attributes(store_dir, "mode");
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
317 if not mode then
6644
6cb6855f60df util.datamanager: Fix traceback due to %s in log message
Kim Alvefur <zash@zash.se>
parents: 6575
diff changeset
318 return function() log("debug", "%s", err or (store_dir .. " does not exist")) end
5153
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
319 end
7674
8027eecc750f util.datamanager: Add annotations to ignore name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7673
diff changeset
320 local next, state = lfs.dir(store_dir); -- luacheck: ignore 431/next 431/state
8027eecc750f util.datamanager: Add annotations to ignore name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7673
diff changeset
321 return function(state) -- luacheck: ignore 431/state
5153
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
322 for node in next, state do
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
323 local file, ext = node:match("^(.*)%.([dalist]+)$");
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
324 if file and ext == typ then
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
325 return decode(file);
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
326 end
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
327 end
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
328 end, state;
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
329 end
688aeac0012a mod_storage_internal, datamanager: Add support for iterating over users with data in a store
Kim Alvefur <zash@zash.se>
parents: 5130
diff changeset
330
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
331 local function stores(username, host, typ)
5130
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
332 typ = type_map[typ or "keyval"];
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
333 local store_dir = format("%s/%s/", data_path, encode(host));
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
334
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
335 local mode, err = lfs.attributes(store_dir, "mode");
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
336 if not mode then
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
337 return function() log("debug", err or (store_dir .. " does not exist")) end
5032
c40ea227f8af util.datamanager: Add function for listing stores
Kim Alvefur <zash@zash.se>
parents: 5024
diff changeset
338 end
7674
8027eecc750f util.datamanager: Add annotations to ignore name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7673
diff changeset
339 local next, state = lfs.dir(store_dir); -- luacheck: ignore 431/next 431/state
8027eecc750f util.datamanager: Add annotations to ignore name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7673
diff changeset
340 return function(state) -- luacheck: ignore 431/state
5130
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
341 for node in next, state do
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
342 if not node:match"^%." then
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
343 if username == true then
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
344 if lfs.attributes(store_dir..node, "mode") == "directory" then
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
345 return decode(node);
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
346 end
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
347 elseif username then
7673
177d569307fd util.datamanager: Rename variables to avoid name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7432
diff changeset
348 local store_name = decode(node);
177d569307fd util.datamanager: Rename variables to avoid name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7432
diff changeset
349 if lfs.attributes(getpath(username, host, store_name, typ), "mode") then
177d569307fd util.datamanager: Rename variables to avoid name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7432
diff changeset
350 return store_name;
5130
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
351 end
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
352 elseif lfs.attributes(node, "mode") == "file" then
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
353 local file, ext = node:match("^(.*)%.([dalist]+)$");
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
354 if ext == typ then
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
355 return decode(file)
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
356 end
5032
c40ea227f8af util.datamanager: Add function for listing stores
Kim Alvefur <zash@zash.se>
parents: 5024
diff changeset
357 end
c40ea227f8af util.datamanager: Add function for listing stores
Kim Alvefur <zash@zash.se>
parents: 5024
diff changeset
358 end
c40ea227f8af util.datamanager: Add function for listing stores
Kim Alvefur <zash@zash.se>
parents: 5024
diff changeset
359 end
5130
051d352ed03c storagemanager, datamanager, mod_storage_{internal,sql}: Replace list_stores() with an iterator version
Kim Alvefur <zash@zash.se>
parents: 5118
diff changeset
360 end, state;
5032
c40ea227f8af util.datamanager: Add function for listing stores
Kim Alvefur <zash@zash.se>
parents: 5024
diff changeset
361 end
c40ea227f8af util.datamanager: Add function for listing stores
Kim Alvefur <zash@zash.se>
parents: 5024
diff changeset
362
5103
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
363 local function do_remove(path)
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
364 local ok, err = os_remove(path);
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
365 if not ok and lfs.attributes(path, "mode") then
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
366 return ok, err;
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
367 end
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
368 return true
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
369 end
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
370
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
371 local function purge(username, host)
5038
242c62ff8e77 util.datamanager: Add function for removing all data belonging to a user
Kim Alvefur <zash@zash.se>
parents: 5032
diff changeset
372 local host_dir = format("%s/%s/", data_path, encode(host));
6681
0217a04722c7 util.datamanager: Fix traceback from trying to purge when storage is empty or otherwise unaccessible (fixes #496)
Kim Alvefur <zash@zash.se>
parents: 6644
diff changeset
373 local ok, iter, state, var = pcall(lfs.dir, host_dir);
0217a04722c7 util.datamanager: Fix traceback from trying to purge when storage is empty or otherwise unaccessible (fixes #496)
Kim Alvefur <zash@zash.se>
parents: 6644
diff changeset
374 if not ok then
0217a04722c7 util.datamanager: Fix traceback from trying to purge when storage is empty or otherwise unaccessible (fixes #496)
Kim Alvefur <zash@zash.se>
parents: 6644
diff changeset
375 return ok, iter;
0217a04722c7 util.datamanager: Fix traceback from trying to purge when storage is empty or otherwise unaccessible (fixes #496)
Kim Alvefur <zash@zash.se>
parents: 6644
diff changeset
376 end
5095
dddbcd62183a util.datamanager: Collect errors when deleting all stores of a user, but ignore "no such file"
Kim Alvefur <zash@zash.se>
parents: 5069
diff changeset
377 local errs = {};
6681
0217a04722c7 util.datamanager: Fix traceback from trying to purge when storage is empty or otherwise unaccessible (fixes #496)
Kim Alvefur <zash@zash.se>
parents: 6644
diff changeset
378 for file in iter, state, var do
5038
242c62ff8e77 util.datamanager: Add function for removing all data belonging to a user
Kim Alvefur <zash@zash.se>
parents: 5032
diff changeset
379 if lfs.attributes(host_dir..file, "mode") == "directory" then
7673
177d569307fd util.datamanager: Rename variables to avoid name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7432
diff changeset
380 local store_name = decode(file);
177d569307fd util.datamanager: Rename variables to avoid name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7432
diff changeset
381 local ok, err = do_remove(getpath(username, host, store_name));
5103
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
382 if not ok then errs[#errs+1] = err; end
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
383
7673
177d569307fd util.datamanager: Rename variables to avoid name clashes [luacheck]
Kim Alvefur <zash@zash.se>
parents: 7432
diff changeset
384 local ok, err = do_remove(getpath(username, host, store_name, "list"));
5103
5a1488369c35 util.datamanager: Ignore errors if the file is gone after removing it
Kim Alvefur <zash@zash.se>
parents: 5095
diff changeset
385 if not ok then errs[#errs+1] = err; end
5038
242c62ff8e77 util.datamanager: Add function for removing all data belonging to a user
Kim Alvefur <zash@zash.se>
parents: 5032
diff changeset
386 end
242c62ff8e77 util.datamanager: Add function for removing all data belonging to a user
Kim Alvefur <zash@zash.se>
parents: 5032
diff changeset
387 end
5095
dddbcd62183a util.datamanager: Collect errors when deleting all stores of a user, but ignore "no such file"
Kim Alvefur <zash@zash.se>
parents: 5069
diff changeset
388 return #errs == 0, t_concat(errs, ", ");
5038
242c62ff8e77 util.datamanager: Add function for removing all data belonging to a user
Kim Alvefur <zash@zash.se>
parents: 5032
diff changeset
389 end
242c62ff8e77 util.datamanager: Add function for removing all data belonging to a user
Kim Alvefur <zash@zash.se>
parents: 5032
diff changeset
390
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
391 return {
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
392 set_data_path = set_data_path;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
393 add_callback = add_callback;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
394 remove_callback = remove_callback;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
395 getpath = getpath;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
396 load = load;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
397 store = store;
7002
9ab0d5e69c41 util.datamanager: Add append to public api
Kim Alvefur <zash@zash.se>
parents: 7001
diff changeset
398 append_raw = append;
7929
4017ea6d2599 util.datamanager: Expose atomic_store as store_raw
Kim Alvefur <zash@zash.se>
parents: 7928
diff changeset
399 store_raw = atomic_store;
6777
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
400 list_append = list_append;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
401 list_store = list_store;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
402 list_load = list_load;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
403 users = users;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
404 stores = stores;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
405 purge = purge;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
406 path_decode = decode;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
407 path_encode = encode;
5de6b93d0190 util.*: Remove use of module() function, make all module functions local and return them in a table at the end
Kim Alvefur <zash@zash.se>
parents: 6681
diff changeset
408 };