author | Waqas Hussain <waqas20@gmail.com> |
Thu, 12 Nov 2009 13:42:44 +0500 | |
changeset 2077 | e33658f6052c |
parent 1732 | f1282fad2f99 |
child 2159 | 2ef4458b23d9 |
permissions | -rw-r--r-- |
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-- Prosody IM |
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Update copyright notices for 2009
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-- Copyright (C) 2008-2009 Matthew Wild |
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-- Copyright (C) 2008-2009 Waqas Hussain |
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-- |
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-- This project is MIT/X11 licensed. Please see the |
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-- COPYING file in the source package for more information. |
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-- |
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local format = string.format; |
11 |
local setmetatable, type = setmetatable, type; |
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local pairs, ipairs = pairs, ipairs; |
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local char = string.char; |
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local loadfile, setfenv, pcall = loadfile, setfenv, pcall; |
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Fixed logging in datamanager
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local log = require "util.logger".init("datamanager"); |
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local io_open = io.open; |
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local os_remove = os.remove; |
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local io_popen = io.popen; |
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local tostring, tonumber = tostring, tonumber; |
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Bug fixes and checks for presence subscriptions, etc
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local error = error; |
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local next = next; |
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local t_insert = table.insert; |
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Changed util.datamanager to use util.serialization
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local append = require "util.serialization".append; |
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local path_separator = "/"; if os.getenv("WINDIR") then path_separator = "\\" end |
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Added option core.data_path
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module "datamanager" |
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||
28 |
---- utils ----- |
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29 |
local encode, decode; |
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30 |
do |
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local urlcodes = setmetatable({}, { __index = function (t, k) t[k] = char(tonumber("0x"..k)); return t[k]; end }); |
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33 |
decode = function (s) |
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34 |
return s and (s:gsub("+", " "):gsub("%%([a-fA-F0-9][a-fA-F0-9])", urlcodes)); |
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35 |
end |
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encode = function (s) |
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Fixed URL encoding to generate %0x instead of %x
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return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end)); |
0 | 39 |
end |
40 |
end |
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41 |
||
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local _mkdir = {}; |
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local function mkdir(path) |
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path = path:gsub("/", path_separator); -- TODO as an optimization, do this during path creation rather than here |
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if not _mkdir[path] then |
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local x = io_popen("mkdir \""..path.."\" 2>&1"):read("*a"); |
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_mkdir[path] = true; |
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48 |
end |
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return path; |
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50 |
end |
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local data_path = "data"; |
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util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
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local callbacks = {}; |
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0 | 55 |
------- API ------------- |
56 |
||
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function set_data_path(path) |
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util.datamanager: Lower log level of 'Setting data path' to 'debug'
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log("debug", "Setting data path to: %s", path); |
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data_path = path; |
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end |
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local function callback(username, host, datastore, data) |
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for _, f in ipairs(callbacks) do |
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username, host, datastore, data = f(username, host, datastore, data); |
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datamanager: Fixed incorrect callback result checking
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if username == false then break; end |
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66 |
end |
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return username, host, datastore, data; |
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69 |
end |
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function add_callback(func) |
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71 |
if not callbacks[func] then -- Would you really want to set the same callback more than once? |
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callbacks[func] = true; |
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callbacks[#callbacks+1] = func; |
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74 |
return true; |
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75 |
end |
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76 |
end |
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parents:
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77 |
function remove_callback(func) |
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parents:
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78 |
if callbacks[func] then |
46a58df8557d
util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
Matthew Wild <mwild1@gmail.com>
parents:
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changeset
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79 |
for i, f in ipairs(callbacks) do |
46a58df8557d
util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
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parents:
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80 |
if f == func then |
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util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
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81 |
callbacks[i] = nil; |
46a58df8557d
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82 |
callbacks[f] = nil; |
46a58df8557d
util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
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parents:
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83 |
return true; |
46a58df8557d
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84 |
end |
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85 |
end |
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86 |
end |
932
1ed3e5fe165a
Added: datamanager: Allow a callback to be installed which selectively prevents disk writes
Waqas Hussain <waqas20@gmail.com>
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87 |
end |
452
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Added option core.data_path
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88 |
|
643
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Moved directory auto-creation to datamanager
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89 |
function getpath(username, host, datastore, ext, create) |
247
681b29aa134f
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parents:
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90 |
ext = ext or "dat"; |
643
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parents:
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91 |
host = host and encode(host); |
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92 |
username = username and encode(username); |
84
d0a0bac6815e
Added: Datastore support for hosts and global data in addition to users
Waqas Hussain <waqas20@gmail.com>
parents:
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93 |
if username then |
643
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94 |
if create then mkdir(mkdir(mkdir(data_path).."/"..host).."/"..datastore); end |
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Moved directory auto-creation to datamanager
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95 |
return format("%s/%s/%s/%s.%s", data_path, host, datastore, username, ext); |
84
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Added: Datastore support for hosts and global data in addition to users
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parents:
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96 |
elseif host then |
643
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97 |
if create then mkdir(mkdir(data_path).."/"..host); end |
8ff454831f7d
Moved directory auto-creation to datamanager
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|
98 |
return format("%s/%s/%s.%s", data_path, host, datastore, ext); |
84
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Added: Datastore support for hosts and global data in addition to users
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parents:
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99 |
else |
643
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Moved directory auto-creation to datamanager
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parents:
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100 |
if create then mkdir(data_path); end |
452
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Added option core.data_path
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101 |
return format("%s/%s.%s", data_path, datastore, ext); |
84
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Added: Datastore support for hosts and global data in addition to users
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parents:
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|
102 |
end |
0 | 103 |
end |
104 |
||
105 |
function load(username, host, datastore) |
|
106 |
local data, ret = loadfile(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:
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diff
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107 |
if not data then |
706
ce772e283992
datamanager: Change log message from type "warn" to "debug" when loading a file fails
Waqas Hussain <waqas20@gmail.com>
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|
108 |
log("debug", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil")); |
117
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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
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109 |
return nil; |
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:
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changeset
|
110 |
end |
0 | 111 |
setfenv(data, {}); |
112 |
local success, ret = pcall(data); |
|
117
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Fixed: datamanager.store and datamanager.load could crash when username or host arguments were nil. (useful for server specific and global data).
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parents:
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113 |
if not success then |
182
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|
114 |
log("error", "Unable to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil")); |
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
|
115 |
return nil; |
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:
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diff
changeset
|
116 |
end |
0 | 117 |
return ret; |
118 |
end |
|
119 |
||
120 |
function store(username, host, datastore, data) |
|
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121 |
if not data then |
e30d0e30a0ff
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122 |
data = {}; |
e30d0e30a0ff
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|
123 |
end |
1381
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util.datamanager: Allow multiple data storage callbacks, and allow them to modify parameters
Matthew Wild <mwild1@gmail.com>
parents:
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124 |
|
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parents:
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changeset
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125 |
username, host, datastore, data = callback(username, host, datastore, data); |
1462
44780b856ce7
datamanager: Fixed incorrect callback result checking
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parents:
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126 |
if username == false then |
1381
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127 |
return true; -- Don't save this data at all |
46a58df8557d
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parents:
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|
128 |
end |
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parents:
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129 |
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130 |
-- save the datastore |
643
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changeset
|
131 |
local f, msg = io_open(getpath(username, host, datastore, nil, true), "w+"); |
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
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|
132 |
if not f then |
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|
133 |
log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil")); |
206
e30d0e30a0ff
Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
134 |
return; |
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
|
135 |
end |
0 | 136 |
f:write("return "); |
550
56bdfae9e4ea
Changed util.datamanager to use util.serialization
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
137 |
append(f, data); |
0 | 138 |
f:close(); |
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
|
139 |
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
|
140 |
log("debug", "Removing empty %s datastore for user %s@%s", datastore, username or "nil", host or "nil"); |
206
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Datamanager now deletes files with no data
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parents:
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diff
changeset
|
141 |
os_remove(getpath(username, host, datastore)); |
e30d0e30a0ff
Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
142 |
end |
e30d0e30a0ff
Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents:
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diff
changeset
|
143 |
-- we write data even when we are deleting because lua doesn't have a |
e30d0e30a0ff
Datamanager now deletes files with no data
Waqas Hussain <waqas20@gmail.com>
parents:
182
diff
changeset
|
144 |
-- platform independent way of checking for non-exisitng files |
0 | 145 |
return true; |
146 |
end |
|
147 |
||
247
681b29aa134f
Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
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diff
changeset
|
148 |
function list_append(username, host, datastore, data) |
681b29aa134f
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parents:
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diff
changeset
|
149 |
if not data then return; end |
1462
44780b856ce7
datamanager: Fixed incorrect callback result checking
Waqas Hussain <waqas20@gmail.com>
parents:
1381
diff
changeset
|
150 |
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
|
151 |
-- save the datastore |
643
8ff454831f7d
Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents:
628
diff
changeset
|
152 |
local f, msg = io_open(getpath(username, host, datastore, "list", true), "a+"); |
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
|
153 |
if not f then |
681b29aa134f
Added support for storing (and removing), loading and appending to lists of data to datamanager (for supporting offline messages)
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parents:
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diff
changeset
|
154 |
log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil")); |
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:
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diff
changeset
|
155 |
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
|
156 |
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
|
157 |
f:write("item("); |
550
56bdfae9e4ea
Changed util.datamanager to use util.serialization
Waqas Hussain <waqas20@gmail.com>
parents:
519
diff
changeset
|
158 |
append(f, 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:
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diff
changeset
|
159 |
f:write(");\n"); |
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
|
160 |
f:close(); |
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:
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diff
changeset
|
161 |
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
|
162 |
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
|
163 |
|
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
|
164 |
function list_store(username, host, datastore, 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
|
165 |
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
|
166 |
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
|
167 |
end |
1462
44780b856ce7
datamanager: Fixed incorrect callback result checking
Waqas Hussain <waqas20@gmail.com>
parents:
1381
diff
changeset
|
168 |
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
|
169 |
-- save the datastore |
643
8ff454831f7d
Moved directory auto-creation to datamanager
Waqas Hussain <waqas20@gmail.com>
parents:
628
diff
changeset
|
170 |
local f, msg = io_open(getpath(username, host, datastore, "list", true), "w+"); |
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
|
171 |
if not f 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
|
172 |
log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil")); |
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
|
173 |
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
|
174 |
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
|
175 |
for _, d in ipairs(data) do |
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
|
176 |
f:write("item("); |
550
56bdfae9e4ea
Changed util.datamanager to use util.serialization
Waqas Hussain <waqas20@gmail.com>
parents:
519
diff
changeset
|
177 |
append(f, d); |
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
|
178 |
f:write(");\n"); |
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
|
179 |
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
|
180 |
f:close(); |
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
|
181 |
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
|
182 |
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
|
183 |
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
|
184 |
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
|
185 |
-- 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
|
186 |
-- 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
|
187 |
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
|
188 |
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
|
189 |
|
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
|
190 |
function list_load(username, host, datastore) |
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
|
191 |
local data, ret = loadfile(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
|
192 |
if not data then |
706
ce772e283992
datamanager: Change log message from type "warn" to "debug" when loading a file fails
Waqas Hussain <waqas20@gmail.com>
parents:
643
diff
changeset
|
193 |
log("debug", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(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
|
194 |
return nil; |
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
|
195 |
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
|
196 |
local 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
|
197 |
setfenv(data, {item = function(i) t_insert(items, i); 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
|
198 |
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
|
199 |
if not success 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
|
200 |
log("error", "Unable to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil")); |
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
|
201 |
return nil; |
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
|
202 |
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
|
203 |
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
|
204 |
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
|
205 |
|
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
|
206 |
return _M; |