dns: throw a TypeError in lookupService with invalid port #4839
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| @@ -189,6 +189,9 @@ exports.lookupService = function(host, port, callback) { | |||
| if (cares.isIP(host) === 0) | |||
| throw new TypeError('"host" argument needs to be a valid IP address'); | |||
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| if (typeof port !== 'number') | |||
| throw new TypeError('"port" argument must be a number'); | |||
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Might be a good idea to add the failing value here:
throw new TypeError(`"port" argument must be a number, got ${port} instead.`);
That's not a regression from how other TypeErrors are thrown here though so not a biggie.
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LGTM |
| @@ -189,6 +189,9 @@ exports.lookupService = function(host, port, callback) { | |||
| if (cares.isIP(host) === 0) | |||
| throw new TypeError('"host" argument needs to be a valid IP address'); | |||
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| if (typeof port !== 'number') | |||
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I wonder if we could reuse isLegalPort() from lib/net.js.
EDIT: That would also requiring coercing the value.
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I think it might be better to coerce and check the result with isFinite(). Allowing a port number as a string here would be consistent with other subsystems that allow such inputs (e.g. http.request()).
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I agree with accepting a string for the port for consistency, but will that make this semver-major since it is a behavior change?
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So, in that case, I think that we should at least throw a TypeError if port is not a number first, and then, in a separate PR, change it to coerce the value to a number and make sure it is in the proper port range as a semver-major change. Thoughts?
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I definitely think coercion of numbers should be discussed first. I also think that this PR should go forward since it fixes a bug regardless of that issue (non-number ports aren't accepted as of today).
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LGTM with comments. |
evanlucas
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ok, nits addressed (minus checking that the port is in a valid range). PTAL |
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LGTM |
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LGTM |
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@mscdex LGTY? |
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LGTM |
Previously, port was assumed to be a number and would cause an abort in cares_wrap. This change throws a TypeError if port is not a number before we actually hit C++. Fixes: nodejs#4837 PR-URL: nodejs#4839 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Roman Klauke <romaaan.git@gmail.com> Reviewed-By: Brian White <mscdex@mscdex.net>
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Landed in 0f8e63c. Thanks! |
Previously, port was assumed to be a number and would cause an abort in cares_wrap. This change throws a TypeError if port is not a number before we actually hit C++. Fixes: #4837 PR-URL: #4839 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Roman Klauke <romaaan.git@gmail.com> Reviewed-By: Brian White <mscdex@mscdex.net>
Previously, port was assumed to be a number and would cause an abort in cares_wrap. This change throws a TypeError if port is not a number before we actually hit C++. Fixes: nodejs#4837 PR-URL: nodejs#4839 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Roman Klauke <romaaan.git@gmail.com> Reviewed-By: Brian White <mscdex@mscdex.net>
jasnell
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Just noting: commits that add new throws need to be marked as |
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This was causing the process to abort previously. Should that still make it semver-major? |
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I would say replacing an abort with a thrown exception is not semver-major. |
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hmm.. good point. :-)... in fact, in that case it's likely appropriate for LTS also. |
jasnell
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Yeah, this is a bug fix over anything else |
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@nodejs/lts cherry-picking this commit will bring over an assert for |
Previously, port was assumed to be a number and would cause an abort in cares_wrap. This change throws a TypeError if port is not a number before we actually hit C++. Fixes: #4837 PR-URL: #4839 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Roman Klauke <romaaan.git@gmail.com> Reviewed-By: Brian White <mscdex@mscdex.net>
Previously, port was assumed to be a number and would cause an abort in cares_wrap. This change throws a TypeError if port is not a number before we actually hit C++. Fixes: nodejs#4837 PR-URL: nodejs#4839 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Roman Klauke <romaaan.git@gmail.com> Reviewed-By: Brian White <mscdex@mscdex.net>
Previously, port was assumed to be a number and would cause an abort in
cares_wrap. This change throws a TypeError if port is not a number
before we actually hit C++.
Fixes: #4837