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cryptpad/lib/log.js

100 lines
2.6 KiB
JavaScript

/*jshint esversion: 6 */
var Store = require("../storage/file");
var Logger = module.exports;
/* Every line in the log should contain:
* timestamp
* public key of initiator
* the action
* the event's tag
*/
var messageTemplate = function (type, time, tag, info) {
return JSON.stringify([type.toUpperCase(), time, tag, info]);
};
var write = function (ctx, content) {
ctx.store.log(ctx.channelName, content);
};
// various degrees of logging
const logLevels = ['silly', 'debug', 'verbose', 'feedback', 'info', 'warn', 'error'];
var handlers = {
silly: function (ctx, time, tag, info) {
console.log('[SILLY]', time, tag, info);
},
debug: function (ctx, time, tag, info) {
console.log('[DEBUG]', time, tag, info);
},
verbose: function (ctx, time, tag, info) {
console.log('[VERBOSE]', time, tag, info);
},
feedback: function (ctx, time, tag, info) {
console.log('[FEEDBACK]', time, tag, info);
},
info: function (ctx, time, tag, info) {
console.info('[INFO]', time, tag, info);
},
warn: function (ctx, time, tag, info) {
console.warn('[WARN]', time, tag, info);
},
error: function (ctx, time, tag, info) {
console.error('[ERROR]', time, tag, info);
}
};
var createLogType = function (ctx, type) {
return function (tag, info) {
var time = new Date().toISOString();
var content;
try {
content = messageTemplate(type, time, tag, info);
} catch (e) {
return;
}
if (ctx.logToStdout && typeof(handlers[type]) === 'function') {
handlers[type](ctx, time, tag, info);
}
write(ctx, content);
};
};
// Log.verbose('THING', x);
Logger.create = function (config, cb) {
if (!config.logPath) {
// XXX don't crash, print that you won't log to file
throw new Error("Logger: Expected filePath");
}
/* config: {
filePath: '???',
logLevel: 'silly',
} */
var date = new Date();
var launchTime = ('' + date.getUTCFullYear()).slice(-2) + date.toISOString();
Store.create({
filePath: config.logPath,
}, function (store) {
var ctx = {
store: store,
channelName: launchTime,
logFeedback: Boolean(config.logFeedback),
// TODO respect configured log settings
logLevel: logLevels.indexOf(config.logLevel), // 0 for silly, 1 for debug
};
var log = {};
logLevels.forEach(function (type) {
log[type] = createLogType(ctx, type);
});
cb(Object.freeze(log));
});
};