+++ /dev/null
-
-local json = require "util.json";
-local resolve_relative_path = require "core.configmanager".resolve_relative_path;
-
-local mod_sql = module:require("sql");
-local params = module:get_option("sql");
-
-local engine; -- TODO create engine
-
-local function create_table()
- --[[local Table,Column,Index = mod_sql.Table,mod_sql.Column,mod_sql.Index;
- local ProsodyTable = Table {
- name="prosody";
- Column { name="host", type="TEXT", nullable=false };
- Column { name="user", type="TEXT", nullable=false };
- Column { name="store", type="TEXT", nullable=false };
- Column { name="key", type="TEXT", nullable=false };
- Column { name="type", type="TEXT", nullable=false };
- Column { name="value", type="TEXT", nullable=false };
- Index { name="prosody_index", "host", "user", "store", "key" };
- };
- engine:transaction(function()
- ProsodyTable:create(engine);
- end);]]
- if not module:get_option("sql_manage_tables", true) then
- return;
- end
-
- local create_sql = "CREATE TABLE `prosody` (`host` TEXT, `user` TEXT, `store` TEXT, `key` TEXT, `type` TEXT, `value` TEXT);";
- if params.driver == "PostgreSQL" then
- create_sql = create_sql:gsub("`", "\"");
- elseif params.driver == "MySQL" then
- create_sql = create_sql:gsub("`value` TEXT", "`value` MEDIUMTEXT")
- :gsub(";$", " CHARACTER SET 'utf8' COLLATE 'utf8_bin';");
- end
-
- local index_sql = "CREATE INDEX `prosody_index` ON `prosody` (`host`, `user`, `store`, `key`)";
- if params.driver == "PostgreSQL" then
- index_sql = index_sql:gsub("`", "\"");
- elseif params.driver == "MySQL" then
- index_sql = index_sql:gsub("`([,)])", "`(20)%1");
- end
-
- local success,err = engine:transaction(function()
- engine:execute(create_sql);
- engine:execute(index_sql);
- end);
- if not success then -- so we failed to create
- if params.driver == "MySQL" then
- success,err = engine:transaction(function()
- local result = engine:execute("SHOW COLUMNS FROM prosody WHERE Field='value' and Type='text'");
- if result:rowcount() > 0 then
- module:log("info", "Upgrading database schema...");
- engine:execute("ALTER TABLE prosody MODIFY COLUMN `value` MEDIUMTEXT");
- module:log("info", "Database table automatically upgraded");
- end
- return true;
- end);
- if not success then
- module:log("error", "Failed to check/upgrade database schema (%s), please see "
- .."http://prosody.im/doc/mysql for help",
- err or "unknown error");
- end
- end
- end
-end
-local function set_encoding()
- if params.driver ~= "SQLite3" then
- local set_names_query = "SET NAMES 'utf8';";
- if params.driver == "MySQL" then
- set_names_query = set_names_query:gsub(";$", " COLLATE 'utf8_bin';");
- end
- local success,err = engine:transaction(function() return engine:execute(set_names_query); end);
- if not success then
- module:log("error", "Failed to set database connection encoding to UTF8: %s", err);
- return;
- end
- if params.driver == "MySQL" then
- -- COMPAT w/pre-0.9: Upgrade tables to UTF-8 if not already
- local check_encoding_query = "SELECT `COLUMN_NAME`,`COLUMN_TYPE` FROM `information_schema`.`columns` WHERE `TABLE_NAME`='prosody' AND ( `CHARACTER_SET_NAME`!='utf8' OR `COLLATION_NAME`!='utf8_bin' );";
- local success,err = engine:transaction(function()
- local result = engine:execute(check_encoding_query);
- local n_bad_columns = result:rowcount();
- if n_bad_columns > 0 then
- module:log("warn", "Found %d columns in prosody table requiring encoding change, updating now...", n_bad_columns);
- local fix_column_query1 = "ALTER TABLE `prosody` CHANGE `%s` `%s` BLOB;";
- local fix_column_query2 = "ALTER TABLE `prosody` CHANGE `%s` `%s` %s CHARACTER SET 'utf8' COLLATE 'utf8_bin';";
- for row in result:rows() do
- local column_name, column_type = unpack(row);
- engine:execute(fix_column_query1:format(column_name, column_name));
- engine:execute(fix_column_query2:format(column_name, column_name, column_type));
- end
- module:log("info", "Database encoding upgrade complete!");
- end
- end);
- local success,err = engine:transaction(function() return engine:execute(check_encoding_query); end);
- if not success then
- module:log("error", "Failed to check/upgrade database encoding: %s", err or "unknown error");
- end
- end
- end
-end
-
-do -- process options to get a db connection
- params = params or { driver = "SQLite3" };
-
- if params.driver == "SQLite3" then
- params.database = resolve_relative_path(prosody.paths.data or ".", params.database or "prosody.sqlite");
- end
-
- assert(params.driver and params.database, "Both the SQL driver and the database need to be specified");
-
- --local dburi = db2uri(params);
- engine = mod_sql:create_engine(params);
-
- -- Encoding mess
- set_encoding();
-
- -- Automatically create table, ignore failure (table probably already exists)
- create_table();
-end
-
-local function serialize(value)
- local t = type(value);
- if t == "string" or t == "boolean" or t == "number" then
- return t, tostring(value);
- elseif t == "table" then
- local value,err = json.encode(value);
- if value then return "json", value; end
- return nil, err;
- end
- return nil, "Unhandled value type: "..t;
-end
-local function deserialize(t, value)
- if t == "string" then return value;
- elseif t == "boolean" then
- if value == "true" then return true;
- elseif value == "false" then return false; end
- elseif t == "number" then return tonumber(value);
- elseif t == "json" then
- return json.decode(value);
- end
-end
-
-local host = module.host;
-local user, store;
-
-local function keyval_store_get()
- local haveany;
- local result = {};
- for row in engine:select("SELECT `key`,`type`,`value` FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?", host, user, store) do
- haveany = true;
- local k = row[1];
- local v = deserialize(row[2], row[3]);
- if k and v then
- if k ~= "" then result[k] = v; elseif type(v) == "table" then
- for a,b in pairs(v) do
- result[a] = b;
- end
- end
- end
- end
- if haveany then
- return result;
- end
-end
-local function keyval_store_set(data)
- engine:delete("DELETE FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?", host, user, store);
-
- if data and next(data) ~= nil then
- local extradata = {};
- for key, value in pairs(data) do
- if type(key) == "string" and key ~= "" then
- local t, value = serialize(value);
- assert(t, value);
- engine:insert("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", host, user, store, key, t, value);
- else
- extradata[key] = value;
- end
- end
- if next(extradata) ~= nil then
- local t, extradata = serialize(extradata);
- assert(t, extradata);
- engine:insert("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", host, user, store, "", t, extradata);
- end
- end
- return true;
-end
-
-local keyval_store = {};
-keyval_store.__index = keyval_store;
-function keyval_store:get(username)
- user,store = username,self.store;
- return select(2, engine:transaction(keyval_store_get));
-end
-function keyval_store:set(username, data)
- user,store = username,self.store;
- return engine:transaction(function()
- return keyval_store_set(data);
- end);
-end
-function keyval_store:users()
- return engine:transaction(function()
- return engine:select("SELECT DISTINCT `user` FROM `prosody` WHERE `host`=? AND `store`=?", host, self.store);
- end);
-end
-
-local driver = {};
-
-function driver:open(store, typ)
- if not typ then -- default key-value store
- return setmetatable({ store = store }, keyval_store);
- end
- return nil, "unsupported-store";
-end
-
-function driver:stores(username)
- local sql = "SELECT DISTINCT `store` FROM `prosody` WHERE `host`=? AND `user`" ..
- (username == true and "!=?" or "=?");
- if username == true or not username then
- username = "";
- end
- return engine:transaction(function()
- return engine:select(sql, host, username);
- end);
-end
-
-function driver:purge(username)
- return engine:transaction(function()
- local stmt,err = engine:delete("DELETE FROM `prosody` WHERE `host`=? AND `user`=?", host, username);
- return true,err;
- end);
-end
-
-module:provides("storage", driver);
-
-
projects / prosody.git / commitdiff