local t_insert = table.insert
local t_concat = table.concat
-local ssl = use "ssl"
+local has_luasec, ssl = pcall ( require , "ssl" )
local socket = use "socket" or require "socket"
local log = require ("util.logger").init("socket")
local interface_mt
do
interface_mt = {}; interface_mt.__index = interface_mt;
-
+
local addevent = base.addevent
local coroutine_wrap, coroutine_yield = coroutine.wrap,coroutine.yield
-
+
-- Private methods
function interface_mt:_position(new_position)
self.position = new_position or self.position
function interface_mt:_close()
return self:_destroy();
end
-
+
function interface_mt:_start_connection(plainssl) -- should be called from addclient
local callback = function( event )
if EV_TIMEOUT == event then -- timeout during connection
self:_close()
debug( "new connection failed. id:", self.id, "error:", self.fatalerror )
else
- if plainssl and ssl then -- start ssl session
+ if plainssl and has_luasec then -- start ssl session
self:starttls(self._sslctx, true)
else -- normal connection
self:_start_session(true)
interfacelist( "delete", self )
return true
end
-
+
function interface_mt:_lock(nointerface, noreading, nowriting) -- lock or unlock this interface or events
self.nointerface, self.noreading, self.nowriting = nointerface, noreading, nowriting
return nointerface, noreading, nowriting
end
-
+
--TODO: Deprecate
function interface_mt:lock_read(switch)
if switch then
end
return self._connections
end
-
+
-- Public methods
function interface_mt:write(data)
if self.nowriting then return nil, "locked" end
return true
end
end
-
+
function interface_mt:socket()
return self.conn
end
-
+
function interface_mt:server()
return self._server or self;
end
-
+
function interface_mt:port()
return self._port
end
-
+
function interface_mt:serverport()
return self._serverport
end
-
+
function interface_mt:ip()
return self._ip
end
-
+
function interface_mt:ssl()
return self._usingssl
end
+ interface_mt.clientport = interface_mt.port -- COMPAT server_select
function interface_mt:type()
return self._type or "client"
end
-
+
function interface_mt:connections()
return self._connections
end
-
+
function interface_mt:address()
return self.addr
end
-
+
function interface_mt:set_sslctx(sslctx)
self._sslctx = sslctx;
if sslctx then
end
return self._pattern;
end
-
+
function interface_mt:set_send(new_send)
-- No-op, we always use the underlying connection's send
end
-
+
function interface_mt:starttls(sslctx, call_onconnect)
debug( "try to start ssl at client id:", self.id )
local err
self.starttls = false;
return true
end
-
+
function interface_mt:setoption(option, value)
if self.conn.setoption then
return self.conn:setoption(option, value);
end
return false, "setoption not implemented";
end
-
+
function interface_mt:setlistener(listener)
- self.onconnect, self.ondisconnect, self.onincoming, self.ontimeout, self.onreadtimeout, self.onstatus
- = listener.onconnect, listener.ondisconnect, listener.onincoming,
- listener.ontimeout, listener.onreadtimeout, listener.onstatus;
+ self:ondetach(); -- Notify listener that it is no longer responsible for this connection
+ self.onconnect, self.ondisconnect, self.onincoming, self.ontimeout,
+ self.onreadtimeout, self.onstatus, self.ondetach
+ = listener.onconnect, listener.ondisconnect, listener.onincoming, listener.ontimeout,
+ listener.onreadtimeout, listener.onstatus, listener.ondetach;
end
-- Stub handlers
end
function interface_mt:ondrain()
end
+ function interface_mt:ondetach()
+ end
function interface_mt:onstatus()
end
end
ontimeout = listener.ontimeout; -- called when fatal socket timeout occurs
onreadtimeout = listener.onreadtimeout; -- called when socket inactivity timeout occurs
ondrain = listener.ondrain; -- called when writebuffer is empty
+ ondetach = listener.ondetach; -- called when disassociating this listener from this connection
onstatus = listener.onstatus; -- called for status changes (e.g. of SSL/TLS)
eventread = false, eventwrite = false, eventclose = false,
eventhandshake = false, eventstarthandshake = false; -- event handler
noreading = false, nowriting = false; -- locks of the read/writecallback
startsslcallback = false; -- starting handshake callback
position = false; -- position of client in interfacelist
-
+
-- Properties
_ip = ip, _port = port, _server = server, _pattern = pattern,
_serverport = (server and server:port() or nil),
_sslctx = sslctx; -- parameters
_usingssl = false; -- client is using ssl;
}
- if not ssl then interface.starttls = false; end
+ if not has_luasec then interface.starttls = false; end
interface.id = tostring(interface):match("%x+$");
interface.writecallback = function( event ) -- called on write events
--vdebug( "new client write event, id/ip/port:", interface, ip, port )
end
end
end
-
+
interface.readcallback = function( event ) -- called on read events
--vdebug( "new client read event, id/ip/port:", tostring(interface.id), tostring(ip), tostring(port) )
if interface.noreading or interface.fatalerror then -- leave this event
debug "creating server interface..."
local interface = {
_connections = 0;
-
+
conn = server;
onconnect = listener.onconnect; -- will be called when new client connected
eventread = false; -- read event handler
readcallback = false; -- read event callback
fatalerror = false; -- error message
nointerface = true; -- lock/unlock parameter
-
+
_ip = addr, _port = port, _pattern = pattern,
_sslctx = sslctx;
}
interface._connections = interface._connections + 1 -- increase connection count
local clientinterface = handleclient( client, client_ip, client_port, interface, pattern, listener, sslctx )
--vdebug( "client id:", clientinterface, "startssl:", startssl )
- if ssl and sslctx then
+ if has_luasec and sslctx then
clientinterface:starttls(sslctx, true)
else
clientinterface:_start_session( true )
end
debug( "accepted incoming client connection from:", client_ip or "<unknown IP>", client_port or "<unknown port>", "to", port or "<unknown port>");
-
+
client, err = server:accept() -- try to accept again
end
return EV_READ
end
-
+
server:settimeout( 0 )
setmetatable(interface, interface_mt)
interfacelist( "add", interface )
end
local addserver = ( function( )
- return function( addr, port, listener, pattern, sslcfg, startssl ) -- TODO: check arguments
- --vdebug( "creating new tcp server with following parameters:", addr or "nil", port or "nil", sslcfg or "nil", startssl or "nil")
+ return function( addr, port, listener, pattern, sslctx, startssl ) -- TODO: check arguments
+ --vdebug( "creating new tcp server with following parameters:", addr or "nil", port or "nil", sslctx or "nil", startssl or "nil")
+ if sslctx and not has_luasec then
+ debug "fatal error: luasec not found"
+ return nil, "luasec not found"
+ end
local server, err = socket.bind( addr, port, cfg.ACCEPT_QUEUE ) -- create server socket
if not server then
debug( "creating server socket on "..addr.." port "..port.." failed:", err )
return nil, err
end
- local sslctx
- if sslcfg then
- if not ssl then
- debug "fatal error: luasec not found"
- return nil, "luasec not found"
- end
- sslctx, err = sslcfg
- if err then
- debug( "error while creating new ssl context for server socket:", err )
- return nil, err
- end
- end
local interface = handleserver( server, addr, port, pattern, listener, sslctx, startssl ) -- new server handler
debug( "new server created with id:", tostring(interface))
return interface
return interface, client
--function handleclient( client, ip, port, server, pattern, listener, _, sslctx ) -- creates an client interface
end
-
- function addclient( addr, serverport, listener, pattern, localaddr, localport, sslcfg, startssl )
+
+ function addclient( addr, serverport, listener, pattern, sslctx )
+ if sslctx and not has_luasec then
+ debug "need luasec, but not available"
+ return nil, "luasec not found"
+ end
local client, err = socket.tcp() -- creating new socket
if not client then
debug( "cannot create socket:", err )
return nil, err
end
client:settimeout( 0 ) -- set nonblocking
- if localaddr then
- local res, err = client:bind( localaddr, localport, -1 )
- if not res then
- debug( "cannot bind client:", err )
- return nil, err
- end
- end
- local sslctx
- if sslcfg then -- handle ssl/new context
- if not ssl then
- debug "need luasec, but not available"
- return nil, "luasec not found"
- end
- sslctx, err = sslcfg
- if err then
- debug( "cannot create new ssl context:", err )
- return nil, err
- end
- end
local res, err = client:connect( addr, serverport ) -- connect
if res or ( err == "timeout" ) then
local ip, port = client:getsockname( )
- local interface = wrapclient( client, ip, serverport, listener, pattern, sslctx, startssl )
+ local interface = wrapclient( client, ip, serverport, listener, pattern, sslctx )
interface:_start_connection( startssl )
debug( "new connection id:", interface.id )
return interface, err
local function link(sender, receiver, buffersize)
local sender_locked;
-
+
function receiver:ondrain()
if sender_locked then
sender:resume();
sender_locked = nil;
end
end
-
+
function sender:onincoming(data)
receiver:write(data);
if receiver.writebufferlen >= buffersize then
sender:pause();
end
end
+ sender:set_mode("*a");
end
return {