| 1 | local setmetatable = setmetatable; |
| 2 | local error = error; |
| 3 | local unpack = unpack; |
| 4 | local module = module; |
| 5 | local tostring = tostring; |
| 6 | local pairs, next = pairs, next; |
| 7 | local prosody = prosody; |
| 8 | local assert = assert; |
| 9 | local require = require; |
| 10 | local st = require "util.stanza"; |
| 11 | local DBI = require "DBI"; |
| 12 | |
| 13 | -- connect to db |
| 14 | local params = module:get_option("sql_ejabberd") or error("No sql_ejabberd config option"); |
| 15 | local database; |
| 16 | do |
| 17 | module:log("debug", "Opening database: %s", "dbi:"..params.driver..":"..params.database); |
| 18 | prosody.unlock_globals(); |
| 19 | local dbh, err = DBI.Connect( |
| 20 | params.driver, params.database, |
| 21 | params.username, params.password, |
| 22 | params.host, params.port |
| 23 | ); |
| 24 | prosody.lock_globals(); |
| 25 | assert(dbh, err); |
| 26 | dbh:autocommit(true); |
| 27 | database = dbh; |
| 28 | end |
| 29 | |
| 30 | -- initialize db |
| 31 | local ejabberd_init = module:require("ejabberd_init"); |
| 32 | ejabberd_init.init(database); |
| 33 | |
| 34 | local sqlcache = {}; |
| 35 | local function prepare(sql) |
| 36 | module:log("debug", "query: %s", sql); |
| 37 | local err; |
| 38 | local r = sqlcache[sql]; |
| 39 | if not r then |
| 40 | r, err = database:prepare(sql); |
| 41 | if not r then error("Unable to prepare SQL statement: "..err); end |
| 42 | sqlcache[sql] = r; |
| 43 | end |
| 44 | return r; |
| 45 | end |
| 46 | |
| 47 | local _parse_xml = module:require("xmlparse"); |
| 48 | local function parse_xml(str) |
| 49 | local s = _parse_xml(str); |
| 50 | if s and not s.gsub then |
| 51 | return st.preserialize(s); |
| 52 | end |
| 53 | end |
| 54 | local function unparse_xml(s) |
| 55 | return tostring(st.deserialize(s)); |
| 56 | end |
| 57 | |
| 58 | |
| 59 | local handlers = {}; |
| 60 | |
| 61 | handlers.accounts = { |
| 62 | get = function(self, user) |
| 63 | local select = self:query("select password from users where username=? and host=?", user, self.host); |
| 64 | local row = select and select:fetch(); |
| 65 | if row then return { password = row[1] }; end |
| 66 | end; |
| 67 | set = function(self, user, data) |
| 68 | if data and data.password then |
| 69 | return self:modify("update users set password=? where username=? and host=?", data.password, user, self.host) |
| 70 | or self:modify("insert into users (username, host, password) values (?, ?, ?)", user, self.host, data.password); |
| 71 | else |
| 72 | return self:modify("delete from users where username=? and host=?", user, self.host); |
| 73 | end |
| 74 | end; |
| 75 | }; |
| 76 | handlers.vcard = { |
| 77 | get = function(self, user) |
| 78 | local select = self:query("select vcard from vcard where username=? and host=?", user, self.host); |
| 79 | local row = select and select:fetch(); |
| 80 | if row then return parse_xml(row[1]); end |
| 81 | end; |
| 82 | set = function(self, user, data) |
| 83 | if data then |
| 84 | data = unparse_xml(data); |
| 85 | return self:modify("update vcard set vcard=? where username=? and host=?", data, user, self.host) |
| 86 | or self:modify("insert into vcard (username, host, vcard) values (?, ?, ?)", user, self.host, data); |
| 87 | else |
| 88 | return self:modify("delete from vcard where username=? and host=?", user, self.host); |
| 89 | end |
| 90 | end; |
| 91 | }; |
| 92 | handlers.private = { |
| 93 | get = function(self, user) |
| 94 | local select = self:query("select namespace,data from private_storage where username=? and host=?", user, self.host); |
| 95 | if select then |
| 96 | local data = {}; |
| 97 | for row in select:rows() do |
| 98 | data[row[1]] = parse_xml(row[2]); |
| 99 | end |
| 100 | return data; |
| 101 | end |
| 102 | end; |
| 103 | set = function(self, user, data) |
| 104 | if data then |
| 105 | self:modify("delete from private_storage where username=? and host=?", user, self.host); |
| 106 | for namespace,text in pairs(data) do |
| 107 | self:modify("insert into private_storage (username, host, namespace, data) values (?, ?, ?, ?)", user, self.host, namespace, unparse_xml(text)); |
| 108 | end |
| 109 | return true; |
| 110 | else |
| 111 | return self:modify("delete from private_storage where username=? and host=?", user, self.host); |
| 112 | end |
| 113 | end; |
| 114 | -- TODO map_set, map_get |
| 115 | }; |
| 116 | local subscription_map = { N = "none", B = "both", F = "from", T = "to" }; |
| 117 | local subscription_map_reverse = { none = "N", both = "B", from = "F", to = "T" }; |
| 118 | handlers.roster = { |
| 119 | get = function(self, user) |
| 120 | local select = self:query("select jid,nick,subscription,ask,server,subscribe,type from rosterusers where username=?", user); |
| 121 | if select then |
| 122 | local roster = { pending = {} }; |
| 123 | for row in select:rows() do |
| 124 | local jid,nick,subscription,ask,server,subscribe,typ = unpack(row); |
| 125 | local item = { groups = {} }; |
| 126 | if nick == "" then nick = nil; end |
| 127 | item.nick = nick; |
| 128 | item.subscription = subscription_map[subscription]; |
| 129 | if ask == "N" then ask = nil; |
| 130 | elseif ask == "O" then ask = "subscribe" |
| 131 | elseif ask == "I" then roster.pending[jid] = true; ask = nil; |
| 132 | elseif ask == "B" then roster.pending[jid] = true; ask = "subscribe"; |
| 133 | else module:log("debug", "bad roster_item.ask: %s", ask); ask = nil; end |
| 134 | item.ask = ask; |
| 135 | roster[jid] = item; |
| 136 | end |
| 137 | |
| 138 | select = self:query("select jid,grp from rostergroups where username=?", user); |
| 139 | if select then |
| 140 | for row in select:rows() do |
| 141 | local jid,grp = unpack(row); |
| 142 | if roster[jid] then roster[jid].groups[grp] = true; end |
| 143 | end |
| 144 | end |
| 145 | select = self:query("select version from roster_version where username=?", user); |
| 146 | local row = select and select:fetch(); |
| 147 | if row then |
| 148 | roster[false] = { version = row[1]; }; |
| 149 | end |
| 150 | return roster; |
| 151 | end |
| 152 | end; |
| 153 | set = function(self, user, data) |
| 154 | if data and next(data) ~= nil then |
| 155 | self:modify("delete from rosterusers where username=?", user); |
| 156 | self:modify("delete from rostergroups where username=?", user); |
| 157 | self:modify("delete from roster_version where username=?", user); |
| 158 | local done = {}; |
| 159 | local pending = data.pending or {}; |
| 160 | for jid,item in pairs(data) do |
| 161 | if jid and jid ~= "pending" then |
| 162 | local subscription = subscription_map_reverse[item.subscription]; |
| 163 | local ask; |
| 164 | if pending[jid] then |
| 165 | if item.ask then ask = "B"; else ask = "I"; end |
| 166 | else |
| 167 | if item.ask then ask = "O"; else ask = "N"; end |
| 168 | end |
| 169 | local r = self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?, '', '', '')", user, jid, item.nick or "", subscription, ask); |
| 170 | if not r then module:log("debug", "--- :( %s", tostring(r)); end |
| 171 | done[jid] = true; |
| 172 | for group in pairs(item.groups) do |
| 173 | self:modify("insert into rostergroups (username,jid,grp) values (?, ?, ?)", user, jid, group); |
| 174 | end |
| 175 | end |
| 176 | end |
| 177 | for jid in pairs(pending) do |
| 178 | if not done[jid] then |
| 179 | self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?. ''. ''. '')", user, jid, "", "N", "I"); |
| 180 | end |
| 181 | end |
| 182 | local version = data[false] and data[false].version; |
| 183 | if version then |
| 184 | self:modify("insert into roster_version (username,version) values (?, ?)", user, version); |
| 185 | end |
| 186 | return true; |
| 187 | else |
| 188 | self:modify("delete from rosterusers where username=?", user); |
| 189 | self:modify("delete from rostergroups where username=?", user); |
| 190 | self:modify("delete from roster_version where username=?", user); |
| 191 | end |
| 192 | end; |
| 193 | }; |
| 194 | |
| 195 | ----------------------------- |
| 196 | local driver = {}; |
| 197 | driver.__index = driver; |
| 198 | |
| 199 | function driver:query(sql, ...) |
| 200 | local stmt,err = prepare(sql); |
| 201 | if not stmt then |
| 202 | module:log("error", "Failed to prepare SQL [[%s]], error: %s", sql, err); |
| 203 | return nil, err; |
| 204 | end |
| 205 | local ok, err = stmt:execute(...); |
| 206 | if not ok then |
| 207 | module:log("error", "Failed to execute SQL [[%s]], error: %s", sql, err); |
| 208 | return nil, err; |
| 209 | end |
| 210 | return stmt; |
| 211 | end |
| 212 | function driver:modify(sql, ...) |
| 213 | local stmt, err = self:query(sql, ...); |
| 214 | if stmt and stmt:affected() > 0 then return stmt; end |
| 215 | return nil, err; |
| 216 | end |
| 217 | |
| 218 | function driver:open(datastore, typ) |
| 219 | local instance = setmetatable({ host = module.host, datastore = datastore }, self); |
| 220 | local handler = handlers[datastore]; |
| 221 | if not handler then return nil; end |
| 222 | for key,val in pairs(handler) do |
| 223 | instance[key] = val; |
| 224 | end |
| 225 | if instance.init then instance:init(); end |
| 226 | return instance; |
| 227 | end |
| 228 | |
| 229 | ----------------------------- |
| 230 | |
| 231 | module:add_item("data-driver", driver); |