--- a/tools/migration/migrator/prosody_sql.lua Sun May 05 16:26:01 2019 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,190 +0,0 @@
-
-local assert = assert;
-local have_DBI = pcall(require,"DBI");
-local print = print;
-local type = type;
-local next = next;
-local pairs = pairs;
-local t_sort = table.sort;
-local json = require "util.json";
-local mtools = require "migrator.mtools";
-local tostring = tostring;
-local tonumber = tonumber;
-
-if not have_DBI then
- error("LuaDBI (required for SQL support) was not found, please see https://prosody.im/doc/depends#luadbi", 0);
-end
-
-local sql = require "util.sql";
-
-local function create_table(engine, name) -- luacheck: ignore 431/engine
- local Table, Column, Index = sql.Table, sql.Column, sql.Index;
-
- local ProsodyTable = Table {
- name= name or "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="MEDIUMTEXT", nullable=false };
- Index { name="prosody_index", "host", "user", "store", "key" };
- };
- engine:transaction(function()
- ProsodyTable:create(engine);
- end);
-
-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 decode_user(item)
- local userdata = {
- user = item[1][1].user;
- host = item[1][1].host;
- stores = {};
- };
- for i=1,#item do -- loop over stores
- local result = {};
- local store = item[i];
- for i=1,#store do -- loop over store data
- local row = store[i];
- 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
- userdata.stores[store[1].store] = result;
- end
- end
- return userdata;
-end
-
-local function needs_upgrade(engine, params)
- if params.driver == "MySQL" then
- local success = engine:transaction(function()
- local result = engine:execute("SHOW COLUMNS FROM prosody WHERE Field='value' and Type='text'");
- assert(result:rowcount() == 0);
-
- -- COMPAT w/pre-0.10: Upgrade table to UTF-8 if not already
- local check_encoding_query = [[
- SELECT "COLUMN_NAME","COLUMN_TYPE","TABLE_NAME"
- FROM "information_schema"."columns"
- WHERE "TABLE_NAME" LIKE 'prosody%%' AND ( "CHARACTER_SET_NAME"!='%s' OR "COLLATION_NAME"!='%s_bin' );
- ]];
- check_encoding_query = check_encoding_query:format(engine.charset, engine.charset);
- local result = engine:execute(check_encoding_query);
- assert(result:rowcount() == 0)
- end);
- if not success then
- -- Upgrade required
- return true;
- end
- end
- return false;
-end
-
-local function reader(input)
- local engine = assert(sql:create_engine(input, function (engine) -- luacheck: ignore 431/engine
- if needs_upgrade(engine, input) then
- error("Old database format detected. Please run: prosodyctl mod_storage_sql upgrade");
- end
- end));
- local keys = {"host", "user", "store", "key", "type", "value"};
- assert(engine:connect());
- local f,s,val = assert(engine:select("SELECT \"host\", \"user\", \"store\", \"key\", \"type\", \"value\" FROM \"prosody\";"));
- -- get SQL rows, sorted
- local iter = mtools.sorted {
- reader = function() val = f(s, val); return val; end;
- filter = function(x)
- for i=1,#keys do
- x[ keys[i] ] = x[i];
- end
- if x.host == "" then x.host = nil; end
- if x.user == "" then x.user = nil; end
- if x.store == "" then x.store = nil; end
- return x;
- end;
- sorter = function(a, b)
- local a_host, a_user, a_store = a.host or "", a.user or "", a.store or "";
- local b_host, b_user, b_store = b.host or "", b.user or "", b.store or "";
- return a_host > b_host or (a_host==b_host and a_user > b_user) or (a_host==b_host and a_user==b_user and a_store > b_store);
- end;
- };
- -- merge rows to get stores
- iter = mtools.merged(iter, function(a, b)
- return (a.host == b.host and a.user == b.user and a.store == b.store);
- end);
- -- merge stores to get users
- iter = mtools.merged(iter, function(a, b)
- return (a[1].host == b[1].host and a[1].user == b[1].user);
- end);
- return function()
- local x = iter();
- return x and decode_user(x);
- end;
-end
-
-local function writer(output, iter)
- local engine = assert(sql:create_engine(output, function (engine) -- luacheck: ignore 431/engine
- if needs_upgrade(engine, output) then
- error("Old database format detected. Please run: prosodyctl mod_storage_sql upgrade");
- end
- create_table(engine);
- end));
- assert(engine:connect());
- assert(engine:delete("DELETE FROM \"prosody\""));
- local insert_sql = "INSERT INTO \"prosody\" (\"host\",\"user\",\"store\",\"key\",\"type\",\"value\") VALUES (?,?,?,?,?,?)";
-
- return function(item)
- if not item then assert(engine.conn:commit()) return end -- end of input
- local host = item.host or "";
- local user = item.user or "";
- for store, data in pairs(item.stores) do
- -- TODO transactions
- local extradata = {};
- for key, value in pairs(data) do
- if type(key) == "string" and key ~= "" then
- local t, value = assert(serialize(value));
- local ok, err = assert(engine:insert(insert_sql, host, user, store, key, t, value));
- else
- extradata[key] = value;
- end
- end
- if next(extradata) ~= nil then
- local t, extradata = assert(serialize(extradata));
- local ok, err = assert(engine:insert(insert_sql, host, user, store, "", t, extradata));
- end
- end
- end;
-end
-
-
-return {
- reader = reader;
- writer = writer;
-}