websocket的子线程代码分离至单独文件并移除debugMode
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MrZ626
202
Zframework/websocket_thread.lua
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202
Zframework/websocket_thread.lua
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@@ -0,0 +1,202 @@
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local triggerCHN,sendCHN,readCHN=...
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local CHN_demand,CHN_getCount=triggerCHN.demand,triggerCHN.getCount
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local CHN_push,CHN_pop=triggerCHN.push,triggerCHN.pop
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local SOCK=require'socket'.tcp()
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local JSON=require'Zframework.json'
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do--Connect
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local host=CHN_demand(sendCHN)
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local port=CHN_demand(sendCHN)
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local path=CHN_demand(sendCHN)
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local body=CHN_demand(sendCHN)
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local timeout=CHN_demand(sendCHN)
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SOCK:settimeout(timeout)
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local res,err=SOCK:connect(host,port)
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if err then CHN_push(readCHN,err)return end
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--WebSocket handshake
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if not body then body=''end
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SOCK:send(
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'GET '..path..' HTTP/1.1\r\n'..
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'Host: '..host..':'..port..'\r\n'..
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'Connection: Upgrade\r\n'..
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'Upgrade: websocket\r\n'..
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'Content-Type: application/json\r\n'..
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'Content-Length: '..#body..'\r\n'..
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'Sec-WebSocket-Version: 13\r\n'..
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'Sec-WebSocket-Key: osT3F7mvlojIvf3/8uIsJQ==\r\n\r\n'..--secKey
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body
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)
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--First line of HTTP
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res,err=SOCK:receive('*l')
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if not res then CHN_push(readCHN,err)return end
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local code,ctLen
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code=res:find(' ')
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code=res:sub(code+1,code+3)
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--Get body length from headers and remove headers
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repeat
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res,err=SOCK:receive('*l')
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if not res then CHN_push(readCHN,err)return end
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if not ctLen and res:find('length')then
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ctLen=tonumber(res:match('%d+'))
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end
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until res==''
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--Result
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if ctLen then
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if code=='101'then
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CHN_push(readCHN,'success')
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else
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res,err=SOCK:receive(ctLen)
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if not res then
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CHN_push(readCHN,err)
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else
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res=JSON.decode(res)
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CHN_push(readCHN,(code or"XXX")..":"..(res and res.reason or"Server Error"))
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end
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return
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end
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end
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end
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local byte=string.byte
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local band,shl=bit.band,bit.lshift
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local _send do
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local char=string.char
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local bor,bxor=bit.bor,bit.bxor
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local shr=bit.rshift
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local mask_key={1,14,5,14}
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local mask_str=char(unpack(mask_key))
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function _send(op,message)
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--Message type
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SOCK:send(char(bor(0x80,op)))
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if message then
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--Length
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local length=#message
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if length>65535 then
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SOCK:send(char(bor(127,0x80),0,0,0,0,band(shr(length,24),0xff),band(shr(length,16),0xff),band(shr(length,8),0xff),band(length,0xff)))
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elseif length>125 then
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SOCK:send(char(bor(126,0x80),band(shr(length,8),0xff),band(length,0xff)))
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else
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SOCK:send(char(bor(length,0x80)))
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end
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SOCK:send(mask_str)
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local msgbyte={byte(message,1,length)}
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for i=1,length do
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msgbyte[i]=bxor(msgbyte[i],mask_key[(i-1)%4+1])
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end
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return SOCK:send(char(unpack(msgbyte)))
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else
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SOCK:send('\128'..mask_str)
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return 0
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end
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end
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end
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local res,err
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local op,fin
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local length
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local lBuffer=""--Long multi-data buffer
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local UFF--Un-finished-frame mode
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local sBuffer=""--Short multi-frame buffer
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while true do--Running
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CHN_demand(triggerCHN)
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--Send
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while CHN_getCount(sendCHN)>=2 do
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op=CHN_pop(sendCHN)
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local message=CHN_pop(sendCHN)
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_send(op,message)
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end
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--Read
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while true do
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if not UFF then--UNF process
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--Byte 0-1
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res,err=SOCK:receive(2)
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if err then break end
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op=band(byte(res,1),0x0f)
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fin=band(byte(res,1),0x80)==0x80
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--Calculating data length
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length=band(byte(res,2),0x7f)
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if length==126 then
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res,err=SOCK:receive(2)
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if res then
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length=shl(byte(res,1),8)+byte(res,2)--!!!!!
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else
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CHN_push(readCHN,8)--close
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CHN_push(readCHN,'{"reason":"'..(err or"error_01")..'"}')
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end
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elseif length==127 then
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local b={byte(SOCK:receive(8),1,8)}
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length=shl(b[5],24)+shl(b[6],16)+shl(b[7],8)+b[8]
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end
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if length>0 then
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--Receive data
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local s,_,p=SOCK:receive(length)
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if s then
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res=s
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elseif p then--UNF head
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UFF=true
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sBuffer=sBuffer..p
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length=length-#p
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break
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end
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else
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res=""
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end
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else
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local s,_,p=SOCK:receive(length)
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if s then
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sBuffer=sBuffer..s
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length=length-#s
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elseif p then
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sBuffer=sBuffer..p
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length=length-#p
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end
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if length==0 then
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res,sBuffer=sBuffer,""
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UFF=false
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else
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break
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end
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end
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--React
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if op==8 then--8=close
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CHN_push(readCHN,op)
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SOCK:close()
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if type(res)=='string'then
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CHN_push(readCHN,res:sub(3))--Warning: with 2 bytes close code
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else
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CHN_push(readCHN,"WS Error")
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end
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elseif op==0 then--0=continue
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lBuffer=lBuffer..res
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if fin then
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CHN_push(readCHN,lBuffer)
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lBuffer=""
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else
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end
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else
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CHN_push(readCHN,op)
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if fin then
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CHN_push(readCHN,res)
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else
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sBuffer=res
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end
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end
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end
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end
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