+-- Prosody IM v0.4
+-- Copyright (C) 2008-2009 Matthew Wild
+-- Copyright (C) 2008-2009 Waqas Hussain
+--
+-- This project is MIT/X11 licensed. Please see the
+-- COPYING file in the source package for more information.
+--
+
+
local format = string.format;
local setmetatable, type = setmetatable, type;
-local pairs = pairs;
+local pairs, ipairs = pairs, ipairs;
local char = string.char;
local loadfile, setfenv, pcall = loadfile, setfenv, pcall;
-local log = log;
+local log = require "util.logger".init("datamanager");
local io_open = io.open;
local os_remove = os.remove;
-local tostring = tostring;
+local io_popen = io.popen;
+local tostring, tonumber = tostring, tonumber;
local error = error;
local next = next;
-
-local indent = function(f, i)
- for n = 1, i do
- f:write("\t");
- end
-end
+local t_insert = table.insert;
+local append = require "util.serialization".append;
+local path_separator = "/"; if os.getenv("WINDIR") then path_separator = "\\" end
module "datamanager"
-
---- utils -----
local encode, decode;
-
-local log = function (type, msg) return log(type, "datamanager", msg); end
-
do
local urlcodes = setmetatable({}, { __index = function (t, k) t[k] = char(tonumber("0x"..k)); return t[k]; end });
end
encode = function (s)
- return s and (s:gsub("%W", function (c) return format("%%%x", c:byte()); end));
+ return s and (s:gsub("%W", function (c) return format("%%%02x", c:byte()); end));
end
end
-local function basicSerialize (o)
- if type(o) == "number" or type(o) == "boolean" then
- return tostring(o);
- else -- assume it is a string -- FIXME make sure it's a string. throw an error otherwise.
- return (format("%q", tostring(o)):gsub("\\\n", "\\n"));
+local _mkdir = {};
+local function mkdir(path)
+ path = path:gsub("/", path_separator); -- TODO as an optimization, do this during path creation rather than here
+ if not _mkdir[path] then
+ local x = io_popen("mkdir \""..path.."\" 2>&1"):read("*a");
+ _mkdir[path] = true;
end
+ return path;
end
-
-local function simplesave (f, o, ind)
- if type(o) == "number" then
- f:write(o)
- elseif type(o) == "string" then
- f:write((format("%q", o):gsub("\\\n", "\\n")))
- elseif type(o) == "table" then
- f:write("{\n")
- for k,v in pairs(o) do
- indent(f, ind);
- f:write("[", basicSerialize(k), "] = ")
- simplesave(f, v, ind+1)
- f:write(",\n")
- end
- indent(f, ind-1);
- f:write("}")
- elseif type(o) == "boolean" then
- f:write(o and "true" or "false");
- else
- error("cannot serialize a " .. type(o))
- end
-end
+local data_path = "data";
+local callback;
------- API -------------
-function getpath(username, host, datastore)
+function set_data_path(path)
+ log("info", "Setting data path to: %s", path);
+ data_path = path;
+end
+function set_callback(func)
+ callback = func;
+end
+
+function getpath(username, host, datastore, ext, create)
+ ext = ext or "dat";
+ host = host and encode(host);
+ username = username and encode(username);
if username then
- return format("data/%s/%s/%s.dat", encode(host), datastore, encode(username));
+ if create then mkdir(mkdir(mkdir(data_path).."/"..host).."/"..datastore); end
+ return format("%s/%s/%s/%s.%s", data_path, host, datastore, username, ext);
elseif host then
- return format("data/%s/%s.dat", encode(host), datastore);
+ if create then mkdir(mkdir(data_path).."/"..host); end
+ return format("%s/%s/%s.%s", data_path, host, datastore, ext);
else
- return format("data/%s.dat", datastore);
+ if create then mkdir(data_path); end
+ return format("%s/%s.%s", data_path, datastore, ext);
end
end
function load(username, host, datastore)
local data, ret = loadfile(getpath(username, host, datastore));
if not data then
- log("warn", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
+ log("debug", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
return nil;
end
setfenv(data, {});
if not data then
data = {};
end
+ if callback and callback(username, host, datastore) then return true; end
-- save the datastore
- local f, msg = io_open(getpath(username, host, datastore), "w+");
+ local f, msg = io_open(getpath(username, host, datastore, nil, true), "w+");
if not f then
log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil"));
return;
end
f:write("return ");
- simplesave(f, data, 1);
+ append(f, data);
f:close();
- if not next(data) then -- try to delete empty datastore
+ if next(data) == nil then -- try to delete empty datastore
+ log("debug", "Removing empty %s datastore for user %s@%s", datastore, username, host);
os_remove(getpath(username, host, datastore));
end
-- we write data even when we are deleting because lua doesn't have a
return true;
end
-return _M;
\ No newline at end of file
+function list_append(username, host, datastore, data)
+ if not data then return; end
+ if callback and callback(username, host, datastore) then return true; end
+ -- save the datastore
+ local f, msg = io_open(getpath(username, host, datastore, "list", true), "a+");
+ if not f then
+ log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil"));
+ return;
+ end
+ f:write("item(");
+ append(f, data);
+ f:write(");\n");
+ f:close();
+ return true;
+end
+
+function list_store(username, host, datastore, data)
+ if not data then
+ data = {};
+ end
+ if callback and callback(username, host, datastore) then return true; end
+ -- save the datastore
+ local f, msg = io_open(getpath(username, host, datastore, "list", true), "w+");
+ if not f then
+ log("error", "Unable to write to "..datastore.." storage ('"..msg.."') for user: "..(username or "nil").."@"..(host or "nil"));
+ return;
+ end
+ for _, d in ipairs(data) do
+ f:write("item(");
+ append(f, d);
+ f:write(");\n");
+ end
+ f:close();
+ if next(data) == nil then -- try to delete empty datastore
+ log("debug", "Removing empty %s datastore for user %s@%s", datastore, username, host);
+ os_remove(getpath(username, host, datastore, "list"));
+ end
+ -- we write data even when we are deleting because lua doesn't have a
+ -- platform independent way of checking for non-exisitng files
+ return true;
+end
+
+function list_load(username, host, datastore)
+ local data, ret = loadfile(getpath(username, host, datastore, "list"));
+ if not data then
+ log("debug", "Failed to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
+ return nil;
+ end
+ local items = {};
+ setfenv(data, {item = function(i) t_insert(items, i); end});
+ local success, ret = pcall(data);
+ if not success then
+ log("error", "Unable to load "..datastore.." storage ('"..ret.."') for user: "..(username or "nil").."@"..(host or "nil"));
+ return nil;
+ end
+ return items;
+end
+
+return _M;
projects / prosody.git / blobdiff