From 7af782ea9c6f1818e2e445b0695398ed7df42480 Mon Sep 17 00:00:00 2001
From: Waqas Hussain <waqas20@gmail.com>
Date: Fri, 19 Feb 2010 22:32:28 +0500
Subject: mod_storage, plus a bit of SQL and XML.

---
 plugins/storage/mod_storage.lua | 83 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)
 create mode 100644 plugins/storage/mod_storage.lua

(limited to 'plugins/storage/mod_storage.lua')

diff --git a/plugins/storage/mod_storage.lua b/plugins/storage/mod_storage.lua
new file mode 100644
index 00000000..e22de82c
--- /dev/null
+++ b/plugins/storage/mod_storage.lua
@@ -0,0 +1,83 @@
+
+module:set_global();
+
+local cache = { data = {} };
+function cache:get(key) return self.data[key]; end
+function cache:set(key, val) self.data[key] = val; return val; end
+
+local DBI = require "DBI";
+function get_database(driver, db, ...)
+	local uri = "dbi:"..driver..":"..db;
+	return cache:get(uri) or cache:set(uri, (function(...)
+		module:log("debug", "Opening database: %s", uri);
+		prosody.unlock_globals();
+		local dbh = assert(DBI.Connect(...));
+		prosody.lock_globals();
+		dbh:autocommit(true)
+		return dbh;
+	end)(driver, db, ...));
+end
+
+local st = require "util.stanza";
+local _parse_xml = module:require("xmlparse");
+parse_xml_real = _parse_xml;
+function parse_xml(str)
+	local s = _parse_xml(str);
+	if s and not s.gsub then
+		return st.preserialize(s);
+	end
+end
+function unparse_xml(s)
+	return tostring(st.deserialize(s));
+end
+
+local drivers = {};
+
+--local driver = module:require("sqlbasic").new("SQLite3", "hello.sqlite");
+local option_datastore = module:get_option("datastore");
+local option_datastore_params = module:get_option("datastore_params") or {};
+if option_datastore then
+	local driver = module:require(option_datastore).new(unpack(option_datastore_params));
+	table.insert(drivers, driver);
+end
+
+local datamanager = require "util.datamanager";
+local olddm = {};
+local dm = {};
+for key,val in pairs(datamanager) do olddm[key] = val; end
+
+do -- driver based on old datamanager
+	local dmd = {};
+	dmd.__index = dmd;
+	function dmd:open(host, datastore)
+		return setmetatable({ host = host, datastore = datastore }, dmd);
+	end
+	function dmd:get(user) return olddm.load(user, self.host, self.datastore); end
+	function dmd:set(user, data) return olddm.store(user, self.host, self.datastore, data); end
+	table.insert(drivers, dmd);
+end
+
+local function open(...)
+	for _,driver in pairs(drivers) do
+		local ds = driver:open(...);
+		if ds then return ds; end
+	end
+end
+
+local _data_path;
+--function dm.set_data_path(path) _data_path = path; end
+--function dm.add_callback(...) end
+--function dm.remove_callback(...) end
+--function dm.getpath(...) end
+function dm.load(username, host, datastore)
+	local x = open(host, datastore);
+	return x:get(username);
+end
+function dm.store(username, host, datastore, data)
+	return open(host, datastore):set(username, data);
+end
+--function dm.list_append(...) return driver:list_append(...); end
+--function dm.list_store(...) return driver:list_store(...); end
+--function dm.list_load(...) return driver:list_load(...); end
+
+for key,val in pairs(dm) do datamanager[key] = val; end
-- 
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