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verify() — netty Function Reference

Architecture documentation for the verify() function in WebSocketClientHandshaker13.java from the netty codebase.

Function java ProtocolCodecs HTTP

Entity Profile

Dependency Diagram

graph TD
  f00b494b_3795_8488_2284_cf58aa45c72f["verify()"]
  5ffea847_3861_46b7_67d3_8bb6f2492be7["WebSocketClientHandshaker13"]
  f00b494b_3795_8488_2284_cf58aa45c72f -->|defined in| 5ffea847_3861_46b7_67d3_8bb6f2492be7
  style f00b494b_3795_8488_2284_cf58aa45c72f fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker13.java lines 308–331

    @Override
    protected void verify(FullHttpResponse response) {
        HttpResponseStatus status = response.status();
        if (!HttpResponseStatus.SWITCHING_PROTOCOLS.equals(status)) {
            throw new WebSocketClientHandshakeException("Invalid handshake response getStatus: " + status, response);
        }

        HttpHeaders headers = response.headers();
        CharSequence upgrade = headers.get(HttpHeaderNames.UPGRADE);
        if (!HttpHeaderValues.WEBSOCKET.contentEqualsIgnoreCase(upgrade)) {
            throw new WebSocketClientHandshakeException("Invalid handshake response upgrade: " + upgrade, response);
        }

        if (!headers.containsValue(HttpHeaderNames.CONNECTION, HttpHeaderValues.UPGRADE, true)) {
            throw new WebSocketClientHandshakeException("Invalid handshake response connection: "
                    + headers.get(HttpHeaderNames.CONNECTION), response);
        }

        CharSequence accept = headers.get(HttpHeaderNames.SEC_WEBSOCKET_ACCEPT);
        if (accept == null || !accept.equals(expectedChallengeResponseString)) {
            throw new WebSocketClientHandshakeException(String.format(
                    "Invalid challenge. Actual: %s. Expected: %s", accept, expectedChallengeResponseString), response);
        }
    }

Domain

Subdomains

Defined In

Source

Frequently Asked Questions

What does verify() do?
verify() is a function in the netty codebase, defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker13.java.
Where is verify() defined?
verify() is defined in codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketClientHandshaker13.java at line 308.

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