| 1 | local handlers = {}; |
| 2 | |
| 3 | handlers.accounts = { |
| 4 | get = function(self, user) |
| 5 | local select = self:query("select password from users where username=?", user); |
| 6 | local row = select and select:fetch(); |
| 7 | if row then return { password = row[1] }; end |
| 8 | end; |
| 9 | set = function(self, user, data) |
| 10 | if data and data.password then |
| 11 | return self:modify("update users set password=? where username=?", data.password, user) |
| 12 | or self:modify("insert into users (username, password) values (?, ?)", user, data.password); |
| 13 | else |
| 14 | return self:modify("delete from users where username=?", user); |
| 15 | end |
| 16 | end; |
| 17 | }; |
| 18 | handlers.vcard = { |
| 19 | get = function(self, user) |
| 20 | local select = self:query("select vcard from vcard where username=?", user); |
| 21 | local row = select and select:fetch(); |
| 22 | if row then return parse_xml(row[1]); end |
| 23 | end; |
| 24 | set = function(self, user, data) |
| 25 | if data then |
| 26 | data = unparse_xml(data); |
| 27 | return self:modify("update vcard set vcard=? where username=?", data, user) |
| 28 | or self:modify("insert into vcard (username, vcard) values (?, ?)", user, data); |
| 29 | else |
| 30 | return self:modify("delete from vcard where username=?", user); |
| 31 | end |
| 32 | end; |
| 33 | }; |
| 34 | handlers.private = { |
| 35 | get = function(self, user) |
| 36 | local select = self:query("select namespace,data from private_storage where username=?", user); |
| 37 | if select then |
| 38 | local data = {}; |
| 39 | for row in select:rows() do |
| 40 | data[row[1]] = parse_xml(row[2]); |
| 41 | end |
| 42 | return data; |
| 43 | end |
| 44 | end; |
| 45 | set = function(self, user, data) |
| 46 | if data then |
| 47 | self:modify("delete from private_storage where username=?", user); |
| 48 | for namespace,text in pairs(data) do |
| 49 | self:modify("insert into private_storage (username, namespace, data) values (?, ?, ?)", user, namespace, unparse_xml(text)); |
| 50 | end |
| 51 | return true; |
| 52 | else |
| 53 | return self:modify("delete from private_storage where username=?", user); |
| 54 | end |
| 55 | end; |
| 56 | -- TODO map_set, map_get |
| 57 | }; |
| 58 | local subscription_map = { N = "none", B = "both", F = "from", T = "to" }; |
| 59 | local subscription_map_reverse = { none = "N", both = "B", from = "F", to = "T" }; |
| 60 | handlers.roster = { |
| 61 | get = function(self, user) |
| 62 | local select = self:query("select jid,nick,subscription,ask,server,subscribe,type from rosterusers where username=?", user); |
| 63 | if select then |
| 64 | local roster = { pending = {} }; |
| 65 | for row in select:rows() do |
| 66 | local jid,nick,subscription,ask,server,subscribe,typ = unpack(row); |
| 67 | local item = { groups = {} }; |
| 68 | if nick == "" then nick = nil; end |
| 69 | item.nick = nick; |
| 70 | item.subscription = subscription_map[subscription]; |
| 71 | if ask == "N" then ask = nil; |
| 72 | elseif ask == "O" then ask = "subscribe" |
| 73 | elseif ask == "I" then roster.pending[jid] = true; ask = nil; |
| 74 | elseif ask == "B" then roster.pending[jid] = true; ask = "subscribe"; |
| 75 | else module:log("debug", "bad roster_item.ask: %s", ask); ask = nil; end |
| 76 | item.ask = ask; |
| 77 | roster[jid] = item; |
| 78 | end |
| 79 | |
| 80 | select = self:query("select jid,grp from rostergroups where username=?", user); |
| 81 | if select then |
| 82 | for row in select:rows() do |
| 83 | local jid,grp = unpack(rows); |
| 84 | if roster[jid] then roster[jid].groups[grp] = true; end |
| 85 | end |
| 86 | end |
| 87 | select = self:query("select version from roster_version where username=?", user); |
| 88 | local row = select and select:fetch(); |
| 89 | if row then |
| 90 | roster[false] = { version = row[1]; }; |
| 91 | end |
| 92 | return roster; |
| 93 | end |
| 94 | end; |
| 95 | set = function(self, user, data) |
| 96 | if data and next(data) ~= nil then |
| 97 | self:modify("delete from rosterusers where username=?", user); |
| 98 | self:modify("delete from rostergroups where username=?", user); |
| 99 | self:modify("delete from roster_version where username=?", user); |
| 100 | local done = {}; |
| 101 | local pending = data.pending or {}; |
| 102 | for jid,item in pairs(data) do |
| 103 | if jid and jid ~= "pending" then |
| 104 | local subscription = subscription_map_reverse[item.subscription]; |
| 105 | local ask; |
| 106 | if pending[jid] then |
| 107 | if item.ask then ask = "B"; else ask = "I"; end |
| 108 | else |
| 109 | if item.ask then ask = "O"; else ask = "N"; end |
| 110 | end |
| 111 | local r = self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?, '', '', '')", user, jid, item.nick or "", subscription, ask); |
| 112 | if not r then module:log("debug", "--- :( %s", tostring(r)); end |
| 113 | done[jid] = true; |
| 114 | for group in pairs(item.groups) do |
| 115 | self:modify("insert into rostergroups (username,jid,grp) values (?, ?, ?)", user, jid, group); |
| 116 | end |
| 117 | end |
| 118 | end |
| 119 | for jid in pairs(pending) do |
| 120 | if not done[jid] then |
| 121 | self:modify("insert into rosterusers (username,jid,nick,subscription,ask,askmessage,server,subscribe) values (?, ?, ?, ?, ?. ''. ''. '')", user, jid, "", "N", "I"); |
| 122 | end |
| 123 | end |
| 124 | local version = data[false] and data[false].version; |
| 125 | if version then |
| 126 | self:modify("insert into roster_version (username,version) values (?, ?)", user, version); |
| 127 | end |
| 128 | return true; |
| 129 | else |
| 130 | self:modify("delete from rosterusers where username=?", user); |
| 131 | self:modify("delete from rostergroups where username=?", user); |
| 132 | self:modify("delete from roster_version where username=?", user); |
| 133 | end |
| 134 | end; |
| 135 | }; |
| 136 | |
| 137 | ----------------------------- |
| 138 | local driver = {}; |
| 139 | driver.__index = driver; |
| 140 | |
| 141 | function driver:prepare(sql) |
| 142 | module:log("debug", "query: %s", sql); |
| 143 | local err; |
| 144 | if not self.sqlcache then self.sqlcache = {}; end |
| 145 | local r = self.sqlcache[sql]; |
| 146 | if r then return r; end |
| 147 | r, err = self.database:prepare(sql); |
| 148 | if not r then error("Unable to prepare SQL statement: "..err); end |
| 149 | self.sqlcache[sql] = r; |
| 150 | return r; |
| 151 | end |
| 152 | |
| 153 | function driver:query(sql, ...) |
| 154 | local stmt = self:prepare(sql); |
| 155 | if stmt:execute(...) then return stmt; end |
| 156 | end |
| 157 | function driver:modify(sql, ...) |
| 158 | local stmt = self:query(sql, ...); |
| 159 | if stmt and stmt:affected() > 0 then return stmt; end |
| 160 | end |
| 161 | |
| 162 | function driver:open(host, datastore, typ) |
| 163 | local cache_key = host.." "..datastore; |
| 164 | if self.ds_cache[cache_key] then return self.ds_cache[cache_key]; end |
| 165 | local instance = setmetatable({}, self); |
| 166 | instance.host = host; |
| 167 | instance.datastore = datastore; |
| 168 | local handler = handlers[datastore]; |
| 169 | if not handler then return nil; end |
| 170 | for key,val in pairs(handler) do |
| 171 | instance[key] = val; |
| 172 | end |
| 173 | if instance.init then instance:init(); end |
| 174 | self.ds_cache[cache_key] = instance; |
| 175 | return instance; |
| 176 | end |
| 177 | |
| 178 | ----------------------------- |
| 179 | local _M = {}; |
| 180 | |
| 181 | function _M.new(dbtype, dbname, ...) |
| 182 | local instance = setmetatable({}, driver); |
| 183 | instance.__index = instance; |
| 184 | instance.database = get_database(dbtype, dbname, ...); |
| 185 | instance.ds_cache = {}; |
| 186 | return instance; |
| 187 | end |
| 188 | |
| 189 | return _M; |