wsgo fuzzing client - Case 5.19 : Fail - 2002 ms @ 2025-03-31T15:47:03.731Z
Case Description
A fragmented text message is sent in multiple frames. After
sending the first 2 frames of the text message, a Ping is sent. Then we wait 1s,
then we send 2 more text fragments, another Ping and then the final text fragment.
Everything is legal.
Case Expectation
The peer immediately answers the first Ping before
it has received the last text message fragment. The peer pong's back the Ping's
payload exactly, and echo's the payload of the fragmented message back to us.
Case Outcome
Actual events differ from any expected.
Expected:
{'OK': [('pong', u'pongme 1!'), ('pong', u'pongme 2!'), ('message', u'fragment1fragment2fragment3fragment4fragment5', False)]}
Observed:
[('message', u'fragment1', False)]
Case Closing Behavior
It is preferred that the server close the TCP connection (FAILED BY CLIENT)
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: EZ414Bf1S8qoK9tZI1WO6A== Sec-WebSocket-Version: 13
HTTP/1.1 101 Switching Protocols Connection: Upgrade Sec-Websocket-Accept: 448sc4h7VW25nf9Kqe7OAtir6As= Upgrade: websocket
| Key | Value | Description |
| isServer | False | True, iff I (the fuzzer) am a server, and the peer is a client. |
| closedByMe | True | True, iff I have initiated closing handshake (that is, did send close first). |
| failedByMe | True | True, 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. |
| droppedByMe | True | True, iff I dropped the TCP connection. |
| wasClean | True | True, iff full WebSocket closing handshake was performed (close frame sent and received) _and_ the server dropped the TCP (which is its responsibility). |
| wasNotCleanReason | None | When wasClean == False, the reason what happened. |
| wasServerConnectionDropTimeout | False | When we are a client, and we expected the server to drop the TCP, but that didn't happen in time, this gets True. |
| wasOpenHandshakeTimeout | False | When performing the opening handshake, but the peer did not finish in time, this gets True. |
| wasCloseHandshakeTimeout | False | When we initiated a closing handshake, but the peer did not respond in time, this gets True. |
| localCloseCode | None | The close code I sent in close frame (if any). |
| localCloseReason | None | The close reason I sent in close frame (if any). |
| remoteCloseCode | None | The close code the peer sent me in close frame (if any). |
| remoteCloseReason | None | The close reason the peer sent me in close frame (if any). |
| Chop Size | Count | Octets |
| 4 | 1 | 4 |
| 11 | 1 | 11 |
| 129 | 1 | 129 |
| Total | 3 | 144 |
| Chop Size | Count | Octets |
| 6 | 1 | 6 |
| 15 | 7 | 105 |
| 240 | 1 | 240 |
| Total | 9 | 351 |
| Opcode | Count |
| 1 | 1 |
| 8 | 1 |
| Total | 2 |
| Opcode | Count |
| 0 | 4 |
| 1 | 1 |
| 8 | 1 |
| 9 | 2 |
| Total | 8 |
000 TX OCTETS: 474554202f20485454502f312e310d0a557365722d4167656e743a204175746f6261686e5465737453756974652f302e382e
322d302e31302e390d0a486f7374 ...
001 RX OCTETS: 485454502f312e312031303120537769746368696e672050726f746f636f6c730d0a436f6e6e656374696f6e3a2055706772
6164650d0a5365632d576562736f ...
002 TX FRAME : OPCODE=1, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=38b070d1, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment1
003 TX OCTETS: 018938b070d15ec211b655d51ea509
004 TX FRAME : OPCODE=0, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=c1e1cb80, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment2
005 TX OCTETS: 0089c1e1cb80a793aae7ac84a5f4f3
006 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=ea04d6b1, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
pongme 1!
007 TX OCTETS: 8989ea04d6b19a6bb8d68761f680cb
008 DELAY 1.000000 sec for TAG None
009 RX OCTETS: 8109667261676d656e7431
010 RX FRAME : OPCODE=1, FIN=True, RSV=0, PAYLOAD-LEN=9, MASKED=False, MASK=None
fragment1
011 DELAY TIMEOUT on TAG None
012 TX FRAME : OPCODE=0, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=b6f13ede, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment3
013 TX OCTETS: 0089b6f13eded0835fb9db9450aa85
014 TX FRAME : OPCODE=0, FIN=False, RSV=0, PAYLOAD-LEN=9, MASK=08b71f86, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment4
015 TX OCTETS: 008908b71f866ec57ee165d271f23c
016 TX FRAME : OPCODE=9, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=627c95cb, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
pongme 2!
017 TX OCTETS: 8989627c95cb1213fbac0f19b5f943
018 TX FRAME : OPCODE=0, FIN=True, RSV=0, PAYLOAD-LEN=9, MASK=1044f347, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
fragment5
019 TX OCTETS: 80891044f347763692207d219d3325
020 CLOSE CONNECTION AFTER 1.000000 sec
021 CLOSING CONNECTION
022 TX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=0, MASK=aa87fe99, PAYLOAD-REPEAT-LEN=None, CHOPSIZE=None, SYNC=False
023 TX OCTETS: 8880aa87fe99
024 RX OCTETS: 880003ea
025 RX FRAME : OPCODE=8, FIN=True, RSV=0, PAYLOAD-LEN=0, MASKED=False, MASK=None
026 TCP DROPPED BY ME