Autobahn WebSocket Testsuite Report
Autobahn WebSocket

wsgo fuzzing client - Case 6.14.7 : Fail - 501 ms @ 2025-03-31T15:47:25.466Z

Case Description

Send a text message with payload which is not valid UTF-8 in one fragment.

Payload: 0xefbf

Case Expectation

The connection is failed immediately, since the payload is not valid UTF-8.

Case Outcome

Actual events match at least one expected.

Expected:
{'OK': []}

Observed:
[]

Case Closing Behavior

The connection was failed by the wrong endpoint (FAILED)



Opening Handshake

GET / HTTP/1.1
User-Agent: AutobahnTestSuite/0.8.2-0.10.9
Host: localhost:8080
Upgrade: WebSocket
Connection: Upgrade
Pragma: no-cache
Cache-Control: no-cache
Sec-WebSocket-Key: Tv4NF2nfMssEI3HvaVA4Gw==
Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols
Connection: Upgrade
Sec-Websocket-Accept: KbCA1LEPkrOaWsaLwHr/dSJmbvM=
Upgrade: websocket


Closing Behavior

KeyValueDescription
isServerFalseTrue, iff I (the fuzzer) am a server, and the peer is a client.
closedByMeTrueTrue, iff I have initiated closing handshake (that is, did send close first).
failedByMeTrueTrue, iff I have failed the WS connection (i.e. due to protocol error). Failing can be either by initiating closing handshake or brutal drop TCP.
droppedByMeTrueTrue, iff I dropped the TCP connection.
wasCleanFalseTrue, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility).
wasNotCleanReasonNoneWhen wasClean == False, the reason what happened.
wasServerConnectionDropTimeoutFalseWhen we are a client, and we expected the server to drop the TCP, but that didn't happen in time, this gets True.
wasOpenHandshakeTimeoutFalseWhen performing the opening handshake, but the peer did not finish in time, this gets True.
wasCloseHandshakeTimeoutFalseWhen we initiated a closing handshake, but the peer did not respond in time, this gets True.
localCloseCode1007The close code I sent in close frame (if any).
localCloseReasonUTF-8 text message payload ended within Unicode code point at payload octet index 2The close reason I sent in close frame (if any).
remoteCloseCodeNoneThe close code the peer sent me in close frame (if any).
remoteCloseReasonNoneThe close reason the peer sent me in close frame (if any).


Wire Statistics

Octets Received by Chop Size

Chop SizeCountOctets
414
1291129
Total2133

Octets Transmitted by Chop Size

Chop SizeCountOctets
818
91191
2401240
Total3339

Frames Received by Opcode

OpcodeCount
11
Total1

Frames Transmitted by Opcode

OpcodeCount
11
81
Total2


Wire Log

000 TX OCTETS: 474554202f20485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f302e382e
               322d302e31302e390d0a486f7374 ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a436f6e6e656374696f6e3a2055706772
               6164650d0a5365632d576562736f ...
002 TX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=2, MASK=82875bde, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0xefbf
003 TX OCTETS: 818282875bde6d38
004 FAIL CONNECTION AFTER 0.500000 sec
005 RX OCTETS: 8102efbf
006 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=2, MASKED=False, MASK=None
               0xefbf
007 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=85, MASK=fb9cbabb, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
               0x03ef5554462d382074657874206d657373616765207061796c6f616420656e6465642077697468696e20556e69636f6465
               20636f646520706f696e7420617420 ...
008 TX OCTETS: 88d5fb9cbabbf873efefbdb1829b8ff9c2cfdbf1dfc888fddddedbecdbc297f3dbdfdbf9d4df9ef89acc92e8d2d295bcefd5
               92ffd5df9ebcd9d49ff99acb94f5 ...
009 FAILING CONNECTION
010 TCP DROPPED BY ME