92 lines
3.2 KiB
JavaScript
92 lines
3.2 KiB
JavaScript
import to from 'await-to-js'
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import logger from '@uci-utils/logger'
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let log = logger({ package: 'base',file:'processing.js'})
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// this._processing refers to this module/hash
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// processing errors that are caught should be sent back to consumer in packets with :error property
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// but they might also throw local errors/execptions so they should bubble up here and get caught and logged
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// messaging errors on socket will not be fatal to the entire socket server
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// common processor, will call based on type s or c the ones below
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const processor = async function (packet,socket) {
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let [err,res] = await to(_process[this.getSocket(socket).type].bind(this)(packet,socket))
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if (err) {
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let error = {error:err, socket:socket, packet:packet, function:'processor', line: 15, msg:'some possibly unhandled badness happened during packet processing'}
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log.error(error)
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if (process.env.UCI_SHOW_UNHANDLED==='true') console.log(error)
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}
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else return res
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}
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export { processor, defaultCmds, namespaces }
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// default processors for socket/server and consumer/client
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const _process = {
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s: async function (packet,socket) {
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if (!packet.cmd) return {error: 'no command (cmd:) in packet for socket', packet: packet }
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// this call will search the namespace and envoke a function and return a repsonse packet
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let response = await this._callCmdFunc(packet,socket); if(response!=='failed') return response
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return {error: 'no socket processing function supplied for command', packet: packet }
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},
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c: async function (packet,socket) {
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// the the end of life for a consumer packet that has been sent and returned or a packet that was pushed.
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if (packet.error) return await this._c.error(packet)
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if (packet.cmd) {
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let response = await this._callCmdFunc(packet,socket); if(response!=='failed') return response
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packet = {error:'no consumer reply processing function supplied for command',packet:packet}
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this._c.error(packet)
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} else {
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packet = {error:'[consumer] no command in reply packet',packet:packet}
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return await this._c.error(packet)
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}
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}
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}
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// default name spaces
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const namespaces = {
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s: ['_s'], // default command functions below
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c: ['_c'], // default command functions below
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cn: ['_cn'],
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ct: ['_ct'],
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cm: ['_cm'],
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// no cw because websocket client runs in browser only
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sn: ['_sn'],
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st: ['_st'],
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sm: ['_sm'],
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sw: ['_sw'],
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}
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/*
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*
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* Default packet command processing functions
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*
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*/
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const defaultCmds ={
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s:{
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echo: async packet => {
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packet.processed = true
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packet.msg = 'default socket echo'
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return packet
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},
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// add sedning along an ack to any consumers and or pushing to other sockets on this device
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ack: async packet => {
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packet.cmd = 'reply'
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packet.ack = true
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packet.msg = 'this is the base default ack, superceed in your extended class'
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return packet
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}
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},
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c:{
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error: function (packet) {
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if (process.env.UCI_ENV==='dev') log.error({error:packet.error, packet:packet, msg:'==========Consumer Sent Packet returned with ERROR ========='})
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},
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reply: function(packet) {
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if (process.env.UCI_ENV==='dev') log.debug({packet:packet, msg:'====Packet returned from socket - debug default reply logger==='})
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}
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}
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}
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