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feat: Fix maybeWebSocketUpgrade to return true when Connection/Upgrade header has multiple… #5958

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feat: Fix maybeWebSocketUpgrade to return true when Connection/Upgrade header has multiple… #5958

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eaa91e1
feat: Fix to return true when Connection/Upgrade header has multiple…
blue-hope Oct 24, 2024
3b21593
test: Add test for websocket upgrade
blue-hope Oct 24, 2024
0e3b66b
test: Add test for upgrade multivalue header
blue-hope Oct 24, 2024
82fe92a
test: Add test toArmeriaForWebSocketUpgrade
blue-hope Oct 24, 2024
02b2074
test: Test on websocket handshake e2e
blue-hope Oct 29, 2024
46e8ad7
test: Revert test for HTTP/2
blue-hope Oct 29, 2024
b544f41
test: Revert test for HTTP/2
blue-hope Oct 29, 2024
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4 changes: 2 additions & 2 deletions core/src/main/java/com/linecorp/armeria/internal/common/ArmeriaHttpUtil.java
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Original file line number Diff line number Diff line change
Expand Up @@ -885,11 +885,11 @@ private static boolean isContentAlwaysEmpty(HttpMethod method) {

private static boolean maybeWebSocketUpgrade(AsciiString header, CharSequence value) {
if (HttpHeaderNames.CONNECTION.contentEqualsIgnoreCase(header) &&
HttpHeaderValues.UPGRADE.contentEqualsIgnoreCase(value)) {
AsciiString.containsIgnoreCase(value, HttpHeaderValues.UPGRADE)) {
return true;
}
return HttpHeaderNames.UPGRADE.contentEqualsIgnoreCase(header) &&
HttpHeaderValues.WEBSOCKET.contentEqualsIgnoreCase(value);
AsciiString.containsIgnoreCase(value, HttpHeaderValues.WEBSOCKET);
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I don't think either websocketxxx or xxxwebsocket is a valid header value. How about splitting the value with a comma , before checking the equality?

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Can we also add a test case that makes sure it doesn't pick up headers like connection: not-upgrade-lol and upgrade: madam-websocket?

}

private static CaseInsensitiveMap toLowercaseMap(Iterator<? extends CharSequence> valuesIter,
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14 changes: 14 additions & 0 deletions core/src/test/java/com/linecorp/armeria/internal/common/ArmeriaHttpUtilTest.java
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Expand Up @@ -502,6 +502,20 @@ void toArmeriaRequestHeaders() {
assertThat(headers.authority()).isEqualTo("foo:36462");
}

@Test
void toArmeriaForWebSocketUpgrade() {
final io.netty.handler.codec.http.HttpHeaders in = new DefaultHttpHeaders()
.add(HttpHeaderNames.CONNECTION, HttpHeaderValues.KEEP_ALIVE + ", " + HttpHeaderValues.UPGRADE)
.add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET + ", additional_value");
final HttpHeadersBuilder out = HttpHeaders.builder();
out.sizeHint(in.size());
toArmeria(in, out);
final HttpHeaders outHeaders = out.build();

assertThat(outHeaders.get(HttpHeaderNames.CONNECTION)).isEqualTo("keep-alive, upgrade");
assertThat(outHeaders.get(HttpHeaderNames.UPGRADE)).isEqualTo("websocket, additional_value");
}

@Test
void isAbsoluteUri() {
final String good = "none+http://a.com";
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6 changes: 4 additions & 2 deletions core/src/test/java/com/linecorp/armeria/server/websocket/WebSocketServiceHandshakeTest.java
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Expand Up @@ -102,7 +102,9 @@ void http1Handshake(SessionProtocol sessionProtocol, boolean useThreadRescheduli
.build();
final RequestHeadersBuilder headersBuilder =
RequestHeaders.builder(HttpMethod.GET, "/chat")
.add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE.toString());
// It works even if the header contains multiple values
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Question) When I checked, it seems like this test passes with the main branch without the changes in this PR.

I'm curious, were you able to verify the same bug with the HEAD of the main branch? It seems a little odd since ArmeriaHttpUtil#maybeWebSocketUpgrade is only called for trailers in the server-side which doesn't seem to make sense to me.

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@blue-hope blue-hope Nov 7, 2024 •
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Thanks, @jrhee17. In toArmeria released in version 1.28.0, I found that the purgeHttp1OnlyHeaders process was dropping useless additional headers, and that is what I intended to. I'll do it again on my server and figure out what was the issue.

.add(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE +
", " + HttpHeaderValues.KEEP_ALIVE);
final Channel channel;
try (ClientRequestContextCaptor captor = Clients.newContextCaptor()) {
final AggregatedHttpResponse res = client.execute(headersBuilder.build()).aggregate().join();
Expand All @@ -114,7 +116,7 @@ void http1Handshake(SessionProtocol sessionProtocol, boolean useThreadRescheduli
"Connection: Upgrade");
}

headersBuilder.add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET.toString());
headersBuilder.add(HttpHeaderNames.UPGRADE, HttpHeaderValues.WEBSOCKET + ", additional_value");
try (ClientRequestContextCaptor captor = Clients.newContextCaptor()) {
final AggregatedHttpResponse res = client.execute(headersBuilder.build()).aggregate().join();

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