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cli: don't add Host header for client_req if it already has one (#504)

Trent Mick 2017-08-02 09:29:04 -07:00
parent 13c86f1d15
commit 2848661aee
8 changed files with 179 additions and 11 deletions
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8
CHANGES.md
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@ -7,7 +7,13 @@ Known issues:
## not yet released
(nothing yet)
- [issue #504] The `bunyan` 1.x CLI adds a `Host: $client_req.address[:$client_req.port]`
header when rendering a `client_req` field in a log record. Fix that here to:
(a) not add it if `client_req.headers` already includes a host header; and
(b) not include the given `port` if it is 80 or 443 (*assuming* that is the
default port.
Note: `bunyan` 2.x CLI will stop adding this Host header because it is a guess
that can be wrong and misleading.
## 1.8.10

57
bin/bunyan
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@ -898,21 +898,57 @@ function emitRecord(rec, line, opts, stylize) {
})
}
/*
* `client_req` is the typical field name for an *HTTP client request
* object* serialized by the restify-clients library. Render the
* client request somewhat like `curl` debug output shows it.
*/
if (rec.client_req && typeof (rec.client_req) === 'object') {
var client_req = rec.client_req;
delete rec.client_req;
var headers = client_req.headers;
var hostHeaderLine = '';
var s = '';
if (client_req.address) {
hostHeaderLine = '\nHost: ' + client_req.address;
if (client_req.port)
hostHeaderLine += ':' + client_req.port;
}
delete client_req.headers;
delete client_req.address;
delete client_req.port;
s += format('%s %s HTTP/%s%s%s', client_req.method,
/*
* `client_req.address`, and `client_req.port`, provide values for
* a *likely* "Host" header that wasn't included in the serialized
* headers. Node.js will often add this "Host" header in its
* `http.ClientRequest`, e.g. for node v6.10.3:
* // JSSTYLED
* https://github.com/nodejs/node/blob/v6.10.3/lib/_http_client.js#L88-L105
*
* If `client_req.port` exists and is 80 or 443, we *assume* that
* is the default protocol port, and elide it per the `defaultPort`
* handling in the node.js link above.
*
* Note: This added Host header is a *guess*. Bunyan shouldn't be
* doing this "favour" for users because it can be wrong and
* misleading. Bunyan 2.x will drop adding this. See issue #504
* for details.
*/
var hostHeaderLine = '';
if (!headers || !(
Object.hasOwnProperty.call(headers, 'host') ||
Object.hasOwnProperty.call(headers, 'Host') ||
Object.hasOwnProperty.call(headers, 'HOST')
)
) {
if (Object.hasOwnProperty.call(client_req, 'address')) {
hostHeaderLine = '\nHost: ' + client_req.address;
if (Object.hasOwnProperty.call(client_req, 'port')) {
// XXX
var port = +client_req.port;
if (port !== 80 && port !== 443) {
hostHeaderLine += ':' + client_req.port;
}
delete client_req.port;
}
delete client_req.address;
}
}
var s = format('%s %s HTTP/%s%s%s', client_req.method,
client_req.url,
client_req.httpVersion || '1.1',
hostHeaderLine,
@ -925,6 +961,7 @@ function emitRecord(rec, line, opts, stylize) {
delete client_req.method;
delete client_req.url;
delete client_req.httpVersion;
if (client_req.body) {
s += '\n\n' + (typeof (client_req.body) === 'object' ?
JSON.stringify(client_req.body, null, 2) :

120
test/cli-client-req.test.js Normal file
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@ -0,0 +1,120 @@
/*
* Copyright (c) 2017, Trent Mick.
*
* Test the bunyan CLI's handling of the "client_req" field.
* "client_req" is a common-ish Bunyan log field from restify-clients. See:
* // JSSTYLED
* https://github.com/restify/clients/blob/85374f87db9f4469de2605b6b15632b317cc12be/lib/helpers/bunyan.js#L213
*/
var exec = require('child_process').exec;
var fs = require('fs');
var path = require('path');
var _ = require('util').format;
var vasync = require('vasync');
// node-tap API
if (require.cache[__dirname + '/tap4nodeunit.js'])
delete require.cache[__dirname + '/tap4nodeunit.js'];
var tap4nodeunit = require('./tap4nodeunit.js');
var after = tap4nodeunit.after;
var before = tap4nodeunit.before;
var test = tap4nodeunit.test;
// ---- globals
var BUNYAN = path.resolve(__dirname, '../bin/bunyan');
// ---- tests
// The bunyan CLI shouldn't add a "Host:" line if client_req.headers has one.
// See <https://github.com/trentm/node-bunyan/issues/504>.
test('client_req renders without extra Host header', function (t) {
exec(_('%s %s/corpus/issue504-client-req-with-host.log', BUNYAN, __dirname),
function (err, stdout, stderr) {
t.ifError(err)
t.equal(stdout, [
// JSSTYLED
'[2017-05-12T23:59:15.877Z] TRACE: minfo/66266 on sharptooth.local: request sent (client_req.address=127.0.0.1)',
' HEAD /dap/stor HTTP/1.1',
' accept: application/json, */*',
' host: foo.example.com',
' date: Fri, 12 May 2017 23:59:15 GMT',
''
].join('\n'));
t.end();
});
});
test('client_req added Host header elides port 80', function (t) {
exec(_('%s %s/corpus/issue504-client-req-with-port80.log',
BUNYAN, __dirname),
function (err, stdout, stderr) {
t.ifError(err)
t.equal(stdout, [
// JSSTYLED
'[2017-05-12T23:59:15.877Z] TRACE: minfo/66266 on sharptooth.local: request sent',
' HEAD /dap/stor HTTP/1.1',
' Host: 127.0.0.1',
' accept: application/json, */*',
' date: Fri, 12 May 2017 23:59:15 GMT',
''
].join('\n'));
t.end();
});
});
test('client_req added Host header elides port 443', function (t) {
exec(_('%s %s/corpus/issue504-client-req-with-port443.log',
BUNYAN, __dirname),
function (err, stdout, stderr) {
t.ifError(err)
t.equal(stdout, [
// JSSTYLED
'[2017-05-12T23:59:15.877Z] TRACE: minfo/66266 on sharptooth.local: request sent',
' HEAD /dap/stor HTTP/1.1',
' Host: 127.0.0.1',
' accept: application/json, */*',
' date: Fri, 12 May 2017 23:59:15 GMT',
''
].join('\n'));
t.end();
});
});
test('client_req added Host header, non-default port', function (t) {
exec(_('%s %s/corpus/issue504-client-req-with-port8080.log',
BUNYAN, __dirname),
function (err, stdout, stderr) {
t.ifError(err)
t.equal(stdout, [
// JSSTYLED
'[2017-05-12T23:59:15.877Z] TRACE: minfo/66266 on sharptooth.local: request sent',
' HEAD /dap/stor HTTP/1.1',
' Host: 127.0.0.1:8080',
' accept: application/json, */*',
' date: Fri, 12 May 2017 23:59:15 GMT',
''
].join('\n'));
t.end();
});
});
test('client_req without address does not add Host header', function (t) {
exec(_('%s %s/corpus/issue504-client-req-without-address.log',
BUNYAN, __dirname),
function (err, stdout, stderr) {
t.ifError(err)
t.equal(stdout, [
// JSSTYLED
'[2017-05-12T23:59:15.877Z] TRACE: minfo/66266 on sharptooth.local: request sent',
' HEAD /dap/stor HTTP/1.1',
' accept: application/json, */*',
' date: Fri, 12 May 2017 23:59:15 GMT',
''
].join('\n'));
t.end();
});
});

1
test/corpus/issue504-client-req-with-host.log Normal file
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@ -0,0 +1 @@
{"name":"minfo","hostname":"sharptooth.local","pid":66266,"level":10,"client_req":{"method":"HEAD","url":"/dap/stor","address":"127.0.0.1","headers":{"accept":"application/json, */*","host":"foo.example.com","date":"Fri, 12 May 2017 23:59:15 GMT"}},"msg":"request sent","time":"2017-05-12T23:59:15.877Z","v":0}

1
test/corpus/issue504-client-req-with-port443.log Normal file
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@ -0,0 +1 @@
{"name":"minfo","hostname":"sharptooth.local","pid":66266,"level":10,"client_req":{"method":"HEAD","url":"/dap/stor","address":"127.0.0.1","port":"443","headers":{"accept":"application/json, */*","date":"Fri, 12 May 2017 23:59:15 GMT"}},"msg":"request sent","time":"2017-05-12T23:59:15.877Z","v":0}

1
test/corpus/issue504-client-req-with-port80.log Normal file
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@ -0,0 +1 @@
{"name":"minfo","hostname":"sharptooth.local","pid":66266,"level":10,"client_req":{"method":"HEAD","url":"/dap/stor","address":"127.0.0.1","port":"80","headers":{"accept":"application/json, */*","date":"Fri, 12 May 2017 23:59:15 GMT"}},"msg":"request sent","time":"2017-05-12T23:59:15.877Z","v":0}

1
test/corpus/issue504-client-req-with-port8080.log Normal file
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@ -0,0 +1 @@
{"name":"minfo","hostname":"sharptooth.local","pid":66266,"level":10,"client_req":{"method":"HEAD","url":"/dap/stor","address":"127.0.0.1","port":"8080","headers":{"accept":"application/json, */*","date":"Fri, 12 May 2017 23:59:15 GMT"}},"msg":"request sent","time":"2017-05-12T23:59:15.877Z","v":0}

1
test/corpus/issue504-client-req-without-address.log Normal file
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@ -0,0 +1 @@
{"name":"minfo","hostname":"sharptooth.local","pid":66266,"level":10,"client_req":{"method":"HEAD","url":"/dap/stor","headers":{"accept":"application/json, */*","date":"Fri, 12 May 2017 23:59:15 GMT"}},"msg":"request sent","time":"2017-05-12T23:59:15.877Z","v":0}