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Merge pull request #11 from zeit/structured-data

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Generate structured data from object with escape
This commit is contained in:
Naoyuki Kanezawa 2019-10-09 22:11:50 +09:00 committed by GitHub
commit 0ebf6cb7dc
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 46 additions and 28 deletions
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50
index.ts
View File

@ -1082,7 +1082,7 @@ export class RFC5424 extends RFC {
super();
options = options || {};
this.hostname = options.hostname || os.hostname();
this.applicationName = options.applicationName || '';
this.applicationName = options.applicationName || '-';
this.timestamp = options.timestamp !== false;
this.timestampMS = options.timestampMS !== false;
this.timestampTZ = options.timestampTZ !== false;
@ -1154,8 +1154,8 @@ export class RFC5424 extends RFC {
* message
* @param {string} [options.pid='-'] - The process id of the service sending
* this message
* @param {string[]} [options.structuredData] - An array of structure
* data strings conforming to the IETF/IANA defined SD-IDs or IANA
* @param {object} [options.structuredData] - An object of structure
* data objects conforming to the IETF/IANA defined SD-IDs or IANA
* registered SMI Network Management Private Enterprise Code SD-ID
* conforming to the format
* [name@<private enterprise number> parameter=value]
@ -1181,7 +1181,6 @@ export class RFC5424 extends RFC {
let applicationName = options.applicationName || this.applicationName;
let pid = options.pid || '-';
let id = options.id || '-';
let msgStructuredData = options.msgStructuredData || [];
let fmtMsg = ''; // Formated Syslog message string var
const newLine = '\n';
const newLineRegEx = /(\r|\n|(\r\n))/;
@ -1251,26 +1250,7 @@ export class RFC5424 extends RFC {
}
}
// Build Structured Data string
let structuredData = '-';
const sdElementCount = msgStructuredData.length;
if (sdElementCount > 0) {
let sdElementNames = [];
let sdElements = [];
const sdElementNameRegEx = /(\[)(\S*)(\s|\])/;
// Loop to drop duplicates of the same SD Element name
for (let elementIndex = 0;
elementIndex < sdElementCount;
elementIndex++) {
let elementName =
msgStructuredData[elementIndex]
.match(sdElementNameRegEx)[2];
if (!sdElementNames.includes(elementName)) {
sdElementNames.push(elementName);
sdElements.push(msgStructuredData[elementIndex]);
}
}
structuredData = sdElements.join('');
}
const structuredData = RFC5424.buildStructuredData(options.structuredData);
// Build the message
fmtMsg = '<' + pri + '>';
fmtMsg += '1'; // Version number
@ -1288,6 +1268,28 @@ export class RFC5424 extends RFC {
fmtMsg += newLine;
return fmtMsg;
}
static buildStructuredData(data) {
// Build Structured Data string
let result;
if (data) {
result = Object.entries(data).map(([sdId, sdParam]) => {
return '[' + [
sdId,
...Object.entries(sdParam)
.map(([name, value]) =>
`${name}="${RFC5424.escapeParamValue(value)}"`
),
].join(' ') + ']';
}).join('');
}
return result || '-';
}
static escapeParamValue(value) {
return String(value)
.replace(/\\/g, '\\\\')
.replace(/"/g, '\\\"')
.replace(/]/g, '\\]');
}
/**
* send a RFC5424 formatted message. Returns a promise with the formatted
* message that was sent. If no server connection was defined when the

24
tests/syslog.test.js
View File

@ -336,10 +336,9 @@ describe('RFC5424 Class Tests', () => {
});
result = rfc5424.buildMessage('hello', {
msgColor: 30,
msgStructuredData: [
'[ourSDID@32473 test=test]',
'[ourSDID@32473 test=test]'
]
structuredData: {
'ourSDID@32473': { test: 'test' }
}
});
resultMsg = /<190>1 \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}.\d{1,3} /;
expect(result).toMatch(resultMsg);
@ -417,6 +416,23 @@ describe('RFC5424 Class Tests', () => {
});
expect(result).toMatch(/^<190>1 \d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}\.\d{1,3}[\+\-]\d{2}:\d{2} hostname applicationName - - - BOMhello\n$/);
});
test('RFC5424 BuildMessage with structredData option', () => {
const rfc5424 = new SyslogPro.RFC5424();
const result = rfc5424.buildMessage('hello', {
structuredData: {
"hi@32473": {
foo: 1,
bar: 2
},
escape: {
quoteCharacter: '"',
backslack: '\\',
closingBrace: ']'
}
}
});
expect(result).toMatch(/^<190>1 \S+ \S+ - - - \[hi@32473 foo="1" bar="2"\]\[escape quoteCharacter="\\"" backslack="\\\\" closingBrace="\\]"\] BOMhello\n$/);
});
test('RFC5424 SetColors', () => {
let rfc5424 = new SyslogPro.RFC5424();
const result = rfc5424.setColor({