--- a/plugins/mod_storage_sql1.lua Sun Oct 28 16:12:30 2018 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,414 +0,0 @@
-
---[[
-
-DB Tables:
- Prosody - key-value, map
- | host | user | store | key | type | value |
- ProsodyArchive - list
- | host | user | store | key | time | stanzatype | jsonvalue |
-
-Mapping:
- Roster - Prosody
- | host | user | "roster" | "contactjid" | type | value |
- | host | user | "roster" | NULL | "json" | roster[false] data |
- Account - Prosody
- | host | user | "accounts" | "username" | type | value |
-
- Offline - ProsodyArchive
- | host | user | "offline" | "contactjid" | time | "message" | json|XML |
-
-]]
-
-local type = type;
-local tostring = tostring;
-local tonumber = tonumber;
-local pairs = pairs;
-local next = next;
-local setmetatable = setmetatable;
-local xpcall = xpcall;
-local json = require "util.json";
-local build_url = require"socket.url".build;
-
-local DBI;
-local connection;
-local host,user,store = module.host;
-local params = module:get_option("sql");
-
-local dburi;
-local connections = module:shared "/*/sql/connection-cache";
-
-local function db2uri(params)
- return build_url{
- scheme = params.driver,
- user = params.username,
- password = params.password,
- host = params.host,
- port = params.port,
- path = params.database,
- };
-end
-
-
-local resolve_relative_path = require "util.paths".resolve_relative_path;
-
-local function test_connection()
- if not connection then return nil; end
- if connection:ping() then
- return true;
- else
- module:log("debug", "Database connection closed");
- connection = nil;
- connections[dburi] = nil;
- end
-end
-local function connect()
- if not test_connection() then
- prosody.unlock_globals();
- local dbh, err = DBI.Connect(
- params.driver, params.database,
- params.username, params.password,
- params.host, params.port
- );
- prosody.lock_globals();
- if not dbh then
- module:log("debug", "Database connection failed: %s", tostring(err));
- return nil, err;
- end
- module:log("debug", "Successfully connected to database");
- dbh:autocommit(false); -- don't commit automatically
- connection = dbh;
-
- connections[dburi] = dbh;
- end
- return connection;
-end
-
-local function create_table()
- 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");
- end
-
- local stmt, err = connection:prepare(create_sql);
- if stmt then
- local ok = stmt:execute();
- local commit_ok = connection:commit();
- if ok and commit_ok then
- module:log("info", "Initialized new %s database with prosody table", params.driver);
- 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 stmt, err = connection:prepare(index_sql);
- local ok, commit_ok, commit_err;
- if stmt then
- ok, err = stmt:execute();
- commit_ok, commit_err = connection:commit();
- end
- if not(ok and commit_ok) then
- module:log("warn", "Failed to create index (%s), lookups may not be optimised", err or commit_err);
- end
- elseif params.driver == "MySQL" then -- COMPAT: Upgrade tables from 0.8.0
- -- Failed to create, but check existing MySQL table here
- local stmt = connection:prepare("SHOW COLUMNS FROM prosody WHERE Field='value' and Type='text'");
- local ok = stmt:execute();
- local commit_ok = connection:commit();
- if ok and commit_ok then
- if stmt:rowcount() > 0 then
- module:log("info", "Upgrading database schema...");
- local stmt = connection:prepare("ALTER TABLE prosody MODIFY COLUMN `value` MEDIUMTEXT");
- local ok, err = stmt:execute();
- local commit_ok = connection:commit();
- if ok and commit_ok then
- module:log("info", "Database table automatically upgraded");
- else
- module:log("error", "Failed to upgrade database schema (%s), please see "
- .."https://prosody.im/doc/mysql for help",
- err or "unknown error");
- end
- end
- repeat until not stmt:fetch();
- end
- end
- elseif params.driver ~= "SQLite3" then -- SQLite normally fails to prepare for existing table
- module:log("warn", "Prosody was not able to automatically check/create the database table (%s), "
- .."see https://prosody.im/doc/modules/mod_storage_sql#table_management for help.",
- err or "unknown error");
- end
-end
-
-do -- process options to get a db connection
- local ok;
- prosody.unlock_globals();
- ok, DBI = pcall(require, "DBI");
- if not ok then
- package.loaded["DBI"] = {};
- module:log("error", "Failed to load the LuaDBI library for accessing SQL databases: %s", DBI);
- module:log("error", "More information on installing LuaDBI can be found at https://prosody.im/doc/depends#luadbi");
- end
- prosody.lock_globals();
- if not ok or not DBI.Connect then
- return; -- Halt loading of this module
- end
-
- 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");
-
- dburi = db2uri(params);
- connection = connections[dburi];
-
- assert(connect());
-
- -- 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 function dosql(sql, ...)
- if params.driver == "PostgreSQL" then
- sql = sql:gsub("`", "\"");
- end
- -- do prepared statement stuff
- local stmt, err = connection:prepare(sql);
- if not stmt and not test_connection() then error("connection failed"); end
- if not stmt then module:log("error", "QUERY FAILED: %s %s", err, debug.traceback()); return nil, err; end
- -- run query
- local ok, err = stmt:execute(...);
- if not ok and not test_connection() then error("connection failed"); end
- if not ok then return nil, err; end
-
- return stmt;
-end
-local function getsql(sql, ...)
- return dosql(sql, host or "", user or "", store or "", ...);
-end
-local function setsql(sql, ...)
- local stmt, err = getsql(sql, ...);
- if not stmt then return stmt, err; end
- return stmt:affected();
-end
-local function transact(...)
- -- ...
-end
-local function rollback(...)
- if connection then connection:rollback(); end -- FIXME check for rollback error?
- return ...;
-end
-local function commit(...)
- local success,err = connection:commit();
- if not success then return nil, "SQL commit failed: "..tostring(err); end
- return ...;
-end
-
-local function keyval_store_get()
- local stmt, err = getsql("SELECT * FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?");
- if not stmt then return rollback(nil, err); end
-
- local haveany;
- local result = {};
- for row in stmt:rows(true) do
- haveany = true;
- local k = row.key;
- local v = deserialize(row.type, row.value);
- 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
- return commit(haveany and result or nil);
-end
-local function keyval_store_set(data)
- local affected, err = setsql("DELETE FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=?");
- if not affected then return rollback(affected, err); end
-
- 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);
- if not t then return rollback(t, value); end
- local ok, err = setsql("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", key, t, value);
- if not ok then return rollback(ok, err); end
- else
- extradata[key] = value;
- end
- end
- if next(extradata) ~= nil then
- local t, extradata = serialize(extradata);
- if not t then return rollback(t, extradata); end
- local ok, err = setsql("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", "", t, extradata);
- if not ok then return rollback(ok, err); end
- end
- end
- return commit(true);
-end
-
-local keyval_store = {};
-keyval_store.__index = keyval_store;
-function keyval_store:get(username)
- user,store = username,self.store;
- if not connection and not connect() then return nil, "Unable to connect to database"; end
- local success, ret, err = xpcall(keyval_store_get, debug.traceback);
- if not connection and connect() then
- success, ret, err = xpcall(keyval_store_get, debug.traceback);
- end
- if success then return ret, err; else return rollback(nil, ret); end
-end
-function keyval_store:set(username, data)
- user,store = username,self.store;
- if not connection and not connect() then return nil, "Unable to connect to database"; end
- local success, ret, err = xpcall(function() return keyval_store_set(data); end, debug.traceback);
- if not connection and connect() then
- success, ret, err = xpcall(function() return keyval_store_set(data); end, debug.traceback);
- end
- if success then return ret, err; else return rollback(nil, ret); end
-end
-function keyval_store:users()
- local stmt, err = dosql("SELECT DISTINCT `user` FROM `prosody` WHERE `host`=? AND `store`=?", host, self.store);
- if not stmt then
- return rollback(nil, err);
- end
- local next = stmt:rows();
- return commit(function()
- local row = next();
- return row and row[1];
- end);
-end
-
-local function map_store_get(key)
- local stmt, err = getsql("SELECT * FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
- if not stmt then return rollback(nil, err); end
-
- local haveany;
- local result = {};
- for row in stmt:rows(true) do
- haveany = true;
- local k = row.key;
- local v = deserialize(row.type, row.value);
- 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
- return commit(haveany and result[key] or nil);
-end
-local function map_store_set(key, data)
- local affected, err = setsql("DELETE FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
- if not affected then return rollback(affected, err); end
-
- if data and next(data) ~= nil then
- if type(key) == "string" and key ~= "" then
- local t, value = serialize(data);
- if not t then return rollback(t, value); end
- local ok, err = setsql("INSERT INTO `prosody` (`host`,`user`,`store`,`key`,`type`,`value`) VALUES (?,?,?,?,?,?)", key, t, value);
- if not ok then return rollback(ok, err); end
- else
- -- TODO non-string keys
- end
- end
- return commit(true);
-end
-
-local map_store = {};
-map_store.__index = map_store;
-function map_store:get(username, key)
- user,store = username,self.store;
- local success, ret, err = xpcall(function() return map_store_get(key); end, debug.traceback);
- if success then return ret, err; else return rollback(nil, ret); end
-end
-function map_store:set(username, key, data)
- user,store = username,self.store;
- local success, ret, err = xpcall(function() return map_store_set(key, data); end, debug.traceback);
- if success then return ret, err; else return rollback(nil, ret); end
-end
-
-local list_store = {};
-list_store.__index = list_store;
-function list_store:scan(username, from, to, jid, typ)
- user,store = username,self.store;
-
- local cols = {"from", "to", "jid", "typ"};
- local vals = { from , to , jid , typ };
- local stmt, err;
- local query = "SELECT * FROM `prosodyarchive` WHERE `host`=? AND `user`=? AND `store`=?";
-
- query = query.." ORDER BY time";
- --local stmt, err = getsql("SELECT * FROM `prosody` WHERE `host`=? AND `user`=? AND `store`=? AND `key`=?", key or "");
-
- return nil, "not-implemented"
-end
-
-local driver = {};
-
-function driver:open(store, typ)
- if typ and typ ~= "keyval" then
- return nil, "unsupported-store";
- end
- return setmetatable({ store = store }, keyval_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
- local stmt, err = dosql(sql, host, username);
- if not stmt then
- return rollback(nil, err);
- end
- local next = stmt:rows();
- return commit(function()
- local row = next();
- return row and row[1];
- end);
-end
-
-function driver:purge(username)
- local stmt, err = dosql("DELETE FROM `prosody` WHERE `host`=? AND `user`=?", host, username);
- if not stmt then return rollback(stmt, err); end
- local changed, err = stmt:affected();
- if not changed then return rollback(changed, err); end
- return commit(true, changed);
-end
-
-module:provides("storage", driver);