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Add logging & syslog support to unfurler
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,5 +1,6 @@ | ||
| { | ||
| "headless": true, | ||
| "dumpio": true, | ||
| "defaultViewport": { | ||
| "width": 1200, | ||
| "height": 600 | ||
|
|
||
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Learn more about bidirectional Unicode characters
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,142 @@ | ||
| import config from './config'; | ||
| import * as dgram from 'dgram'; | ||
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| class Logger { | ||
| static priorities = { | ||
| emerg: 0, | ||
| alert: 1, | ||
| crit: 2, | ||
| err: 3, | ||
| warn: 4, | ||
| notice: 5, | ||
| info: 6, | ||
| debug: 7 | ||
| }; | ||
| static facilities = { | ||
| kern: 0, | ||
| user: 1, | ||
| mail: 2, | ||
| daemon: 3, | ||
| auth: 4, | ||
| syslog: 5, | ||
| lpr: 6, | ||
| news: 7, | ||
| uucp: 8, | ||
| local0: 16, | ||
| local1: 17, | ||
| local2: 18, | ||
| local3: 19, | ||
| local4: 20, | ||
| local5: 21, | ||
| local6: 22, | ||
| local7: 23 | ||
| }; | ||
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| // @ts-ignore | ||
| public emerg: ((msg: string, quiet: boolean = false) => void); | ||
| // @ts-ignore | ||
| public alert: ((msg: string, quiet: boolean = false) => void); | ||
| // @ts-ignore | ||
| public crit: ((msg: string, quiet: boolean = false) => void); | ||
| // @ts-ignore | ||
| public err: ((msg: string, quiet: boolean = false) => void); | ||
| // @ts-ignore | ||
| public warn: ((msg: string, quiet: boolean = false) => void); | ||
| // @ts-ignore | ||
| public notice: ((msg: string, quiet: boolean = false) => void); | ||
| // @ts-ignore | ||
| public info: ((msg: string, quiet: boolean = false) => void); | ||
| // @ts-ignore | ||
| public debug: ((msg: string, quiet: boolean = false) => void); | ||
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| private name = 'mempool'; | ||
| private client: dgram.Socket; | ||
| private network: string; | ||
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| constructor() { | ||
| let prio; | ||
| for (prio in Logger.priorities) { | ||
| if (true) { | ||
| this.addprio(prio); | ||
| } | ||
| } | ||
| this.client = dgram.createSocket('udp4'); | ||
| this.network = this.getNetwork(); | ||
| } | ||
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| private addprio(prio): void { | ||
| this[prio] = (function(_this) { | ||
| return function(msg, quiet) { | ||
| return _this.msg(prio, msg, quiet); | ||
| }; | ||
| })(this); | ||
| } | ||
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| private getNetwork(): string { | ||
| return config.MEMPOOL.NETWORK || 'bitcoin'; | ||
| } | ||
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| private msg(priority, msg, quiet) { | ||
| let consolemsg, prionum, syslogmsg; | ||
| if (typeof msg === 'string' && msg.length > 0) { | ||
| while (msg[msg.length - 1].charCodeAt(0) === 10) { | ||
| msg = msg.slice(0, msg.length - 1); | ||
| } | ||
| } | ||
| const network = this.network ? ' <' + this.network + ' unfurler>' : ''; | ||
| prionum = Logger.priorities[priority] || Logger.priorities.info; | ||
| consolemsg = `${this.ts()} [${process.pid}] ${priority.toUpperCase()}:${network} ${msg}`; | ||
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| if (config.SYSLOG.ENABLED && Logger.priorities[priority] <= Logger.priorities[config.SYSLOG.MIN_PRIORITY]) { | ||
| syslogmsg = `<${(Logger.facilities[config.SYSLOG.FACILITY] * 8 + prionum)}> ${this.name}[${process.pid}]: ${priority.toUpperCase()}${network} ${msg}`; | ||
| this.syslog(syslogmsg); | ||
| } | ||
| if (quiet || Logger.priorities[priority] > Logger.priorities[config.SERVER.STDOUT_LOG_MIN_PRIORITY]) { | ||
| return; | ||
| } | ||
| if (priority === 'warning') { | ||
| priority = 'warn'; | ||
| } | ||
| if (priority === 'debug') { | ||
| priority = 'info'; | ||
| } | ||
| if (priority === 'err') { | ||
| priority = 'error'; | ||
| } | ||
| return (console[priority] || console.error)(consolemsg); | ||
| } | ||
|
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| private syslog(msg) { | ||
| let msgbuf; | ||
| msgbuf = Buffer.from(msg); | ||
| this.client.send(msgbuf, 0, msgbuf.length, config.SYSLOG.PORT, config.SYSLOG.HOST, function(err, bytes) { | ||
| if (err) { | ||
| console.log(err); | ||
| } | ||
| }); | ||
| } | ||
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| private leadZero(n: number): number | string { | ||
| if (n < 10) { | ||
| return '0' + n; | ||
| } | ||
| return n; | ||
| } | ||
|
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||
| private ts() { | ||
| let day, dt, hours, minutes, month, months, seconds; | ||
| dt = new Date(); | ||
| hours = this.leadZero(dt.getHours()); | ||
| minutes = this.leadZero(dt.getMinutes()); | ||
| seconds = this.leadZero(dt.getSeconds()); | ||
| month = dt.getMonth(); | ||
| day = dt.getDate(); | ||
| if (day < 10) { | ||
| day = ' ' + day; | ||
| } | ||
| months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec']; | ||
| return months[month] + ' ' + day + ' ' + hours + ':' + minutes + ':' + seconds; | ||
| } | ||
| } | ||
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| export default new Logger(); |