net/http: reject userinfo in CrossOriginProtection

[jub0bs]

(*CrossOriginProtection).AddTrustedOrigin fails if its argument contains
a path, a query, and/or a fragment, but it doesn't check for the
presence of a userinfo part. Such an omission doesn't affect security
(because serialized origins don't contain any userinfo part), but it
causes invalid origins to be silently accepted, which could create some
confusion.

With this CL, the method now also fails if its argument contains a
userinfo part (even if it's empty).

[gopherbot]

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[gopherbot]

Message from Gopher Robot:

Patch Set 1:

(1 comment)

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Message from jub0bs:

Patch Set 1:

(2 comments)

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Message from Viacheslav Danilin:

Patch Set 1: Code-Review+1

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Message from Filippo Valsorda:

Patch Set 1: Code-Review+2

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Message from Filippo Valsorda:

Patch Set 1: Auto-Submit+1 Commit-Queue+1

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Message from golang-scoped@luci-project-accounts.iam.gserviceaccount.com:

Patch Set 1:

Dry run: CV is trying the patch.

Bot data: {"action":"start","triggered_at":"2026-06-04T19:08:59Z","revision":"af20728e1926ae6e2355d00e9463f42f345fb563"}

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Message from Filippo Valsorda:

Patch Set 1: -Commit-Queue

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Patch Set 1: LUCI-TryBot-Result+1

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