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tls: convertProtocols() error handling #23606

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tls: convertProtocols() error handling #23606

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c72e9c3
tls: convertProtocols() error handling
Oct 12, 2018
85d2428
tls: convertProtocols() amended an error message
Oct 12, 2018
5c4e7d8
lib: added override for msg in ERR_OUT_OF_RANGE
Oct 13, 2018
951692e
tls: minor change to error message in convertProtocols()
Oct 13, 2018
ca17a24
lib: refactored the signature of ERROR_OUT_OF_RANGE
Oct 17, 2018
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8 changes: 7 additions & 1 deletion lib/tls.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,10 @@

'use strict';

const { ERR_TLS_CERT_ALTNAME_INVALID } = require('internal/errors').codes;
const {
ERR_TLS_CERT_ALTNAME_INVALID,
ERR_OUT_OF_RANGE
} = require('internal/errors').codes;
const internalUtil = require('internal/util');
const internalTLS = require('internal/tls');
internalUtil.assertCrypto();
Expand Down Expand Up @@ -60,6 +63,9 @@ function convertProtocols(protocols) {
const lens = new Array(protocols.length);
const buff = Buffer.allocUnsafe(protocols.reduce((p, c, i) => {
var len = Buffer.byteLength(c);
if (len > 255) {
throw new ERR_OUT_OF_RANGE('byte length of a protocol', '< 255', len);
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}
lens[i] = len;
return p + 1 + len;
}, 0));
Expand Down
13 changes: 13 additions & 0 deletions test/parallel/test-tls-basic-validations.js
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Expand Up @@ -102,3 +102,16 @@ common.expectsError(
assert(out.ALPNProtocols.equals(Buffer.from(expectView)));
}
}

{
const protocols = [(new String('a')).repeat(500)];
const out = {};
common.expectsError(
() => tls.convertALPNProtocols(protocols, out),
{
code: 'ERR_OUT_OF_RANGE',
message: 'The value of "byte length of a protocol" is out ' +
'of range. It must be < 255. Received 500'
}
);
}