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Issue #12429 - case-insensitive headers for websocket #12441

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lachlan-roberts
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Issue #12429

Add a new static method HttpFields.asMap(HttpFields fields) and use it everywhere in WebSocket where the HttpFields are converted into a Map<String, List<String>> so that the headers in the map are treated as case-insensitive.

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@gregw @joakime I have changed it so that the HttpFields.asMap decides if the map is modifiable or not. If it is not modifiable it will wrap the HttpFields instead of being backed by a TreeMap, so that any modification to the map is also made to the HttpFields.

I have also reviewed the error handling for the WebSocketCreators, which I found to be incorrect in some places.

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Looking good, but a few niggles

@lachlan-roberts lachlan-roberts requested a review from gregw November 1, 2024 04:28
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Sorry, but I do think one method is best.

Signed-off-by: Lachlan Roberts <[email protected]>
gregw
gregw previously approved these changes Nov 1, 2024
@sbordet sbordet linked an issue Nov 3, 2024 that may be closed by this pull request
Signed-off-by: Lachlan Roberts <[email protected]>
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I replied to your comments.

Signed-off-by: Lachlan Roberts <[email protected]>
cb.failed(t);
if (LOG.isDebugEnabled())
LOG.debug("Could not create WebSocket endpoint", t);
Response.writeError(req, resp, cb, HttpStatus.INTERNAL_SERVER_ERROR_500, "Could not create WebSocket endpoint");
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Can you check whether cb.failed() is enough, because the javadocs of creator.createWebSocket() say to use JettyServerUpgradeResponse. sendError().

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I think cb.failed() is probably better. This will result in the JettyWebSocketServerContainer#upgrade throwing, which can be caught and handled by their application, or if its not caught will result in a sendError() anyway.

Signed-off-by: Lachlan Roberts <[email protected]>
@lachlan-roberts lachlan-roberts merged commit b57b8e6 into jetty-12.0.x Nov 12, 2024
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@lachlan-roberts lachlan-roberts deleted the jetty-12.0.x-12429-caseInsensitiveHeadersWebSocket branch November 12, 2024 03:58
lachlan-roberts added a commit that referenced this pull request Nov 12, 2024
Signed-off-by: Lachlan Roberts <[email protected]>
lachlan-roberts added a commit that referenced this pull request Nov 12, 2024
Signed-off-by: Lachlan Roberts <[email protected]>
lachlan-roberts added a commit that referenced this pull request Nov 15, 2024
…veHeadersWebSocket2

WebSocket cleanups from PR #12441
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HandshakeRequest getHeaders are case sensitive.
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