- debug( "fatal error while ssl wrapping:", err )
- return false
- end
- self.conn:settimeout( 0 ) -- set non blocking
- local handshakecallback = coroutine_wrap(
- function( event )
- local _, err
- local attempt = 0
- local maxattempt = cfg.MAX_HANDSHAKE_ATTEMPTS
- while attempt < maxattempt do -- no endless loop
- attempt = attempt + 1
- debug( "ssl handshake of client with id:"..tostring(self)..", attempt:"..attempt )
- if attempt > maxattempt then
- self.fatalerror = "max handshake attempts exceeded"
- elseif EV_TIMEOUT == event then
- self.fatalerror = "timeout during handshake"
- else
- _, err = self.conn:dohandshake( )
- if not err then
- self:_lock( false, false, false ) -- unlock the interface; sending, closing etc allowed
- self.send = self.conn.send -- caching table lookups with new client object
- self.receive = self.conn.receive
- if not call_onconnect then -- trigger listener
- self:onstatus("ssl-handshake-complete");
- end
- self:_start_session( call_onconnect )
- debug( "ssl handshake done" )
- self.eventhandshake = nil
- return -1
- end
- if err == "wantwrite" then
- event = EV_WRITE
- elseif err == "wantread" then
- event = EV_READ
- else
- debug( "ssl handshake error:", err )
- self.fatalerror = err
- end
- end
- if self.fatalerror then
- if call_onconnect then
- self.ondisconnect = nil -- dont call this when client isnt really connected
- end
- self:_close()
- debug( "handshake failed because:", self.fatalerror )
- self.eventhandshake = nil
- return -1
- end
- event = coroutine_yield( event, cfg.HANDSHAKE_TIMEOUT ) -- yield this monster...
- end
- end
- )
- debug "starting handshake..."
- self:_lock( false, true, true ) -- unlock read/write events, but keep interface locked
- self.eventhandshake = addevent( base, self.conn, EV_READWRITE, handshakecallback, cfg.HANDSHAKE_TIMEOUT )
- return true
- end
- function interface_mt:_destroy() -- close this interface + events and call last listener
- debug( "closing client with id:", self.id, self.fatalerror )
- self:_lock( true, true, true ) -- first of all, lock the interface to avoid further actions
- local _
- _ = self.eventread and self.eventread:close( )
- if self.type == "client" then
- _ = self.eventwrite and self.eventwrite:close( )
- _ = self.eventhandshake and self.eventhandshake:close( )
- _ = self.eventstarthandshake and self.eventstarthandshake:close( )
- _ = self.eventconnect and self.eventconnect:close( )
- _ = self.eventsession and self.eventsession:close( )
- _ = self.eventwritetimeout and self.eventwritetimeout:close( )
- _ = self.eventreadtimeout and self.eventreadtimeout:close( )
- _ = self.ondisconnect and self:ondisconnect( self.fatalerror ~= "client to close" and self.fatalerror) -- call ondisconnect listener (wont be the case if handshake failed on connect)
- _ = self.conn and self.conn:close( ) -- close connection
- _ = self._server and self._server:counter(-1);
- self.eventread, self.eventwrite = nil, nil
- self.eventstarthandshake, self.eventhandshake, self.eventclose = nil, nil, nil
- self.readcallback, self.writecallback = nil, nil
- else
- self.conn:close( )
- self.eventread, self.eventclose = nil, nil
- self.interface, self.readcallback = nil, nil