Installation / Requirements

$ sudo apt install python3-venv$ python3 -m venv fixit_env            $ source fixit_env/bin/activate (fixit_env) $ python3 -m pip install -r requirements.txt

Help

$ python ./initiator.py --helpusage: initiator.py [-h] [--version] [-s <DEFAULT_SESS>] [-u <USERNAME>] [-p <PASSWORD>]                    [-n <NEW PASSWORD>] [-d <FIX_DELIM>] [-S <MESSAGE_STORE>] [-q SEQ_SEED]                    [-x EXP_SEQ_SEED] [-f FUZZ_DELAY] [-r RESP_DELAY] [--colour]                    [--log_heartbeat] [--verbose] [-P [PRELOAD ...]]                    <CONFIG_FILE>CLI Application for interfacing with a FIX Gatewaypositional arguments:  <CONFIG_FILE>         FIX initiator configuration fileoptions:  -h, --help            show this help message and exit  --version             show program's version number and exitSession Configuration:  -s <DEFAULT_SESS>, --session <DEFAULT_SESS>                        The default FIX session to interact with  -u <USERNAME>, --username <USERNAME>                        FIX session username for authentication  -p <PASSWORD>, --password <PASSWORD>                        FIX session password for authentication  -n <NEW PASSWORD>, --newpassword <NEW PASSWORD>                        New password for FIX sessionMessage Handling:  -d <FIX_DELIM>, --fix_delim <FIX_DELIM>                        The delimiter used for FIX message fields  -S <MESSAGE_STORE>, --store <MESSAGE_STORE>                        Message store file, containing sample messages  -q SEQ_SEED, --seq_seed SEQ_SEED                        Initial value for message sequence number  -x EXP_SEQ_SEED, --exp_seq_seed EXP_SEQ_SEED                        Initial value for message sequence numberFuzzing:  -f FUZZ_DELAY, --fuzz_delay FUZZ_DELAY                        Set the delay between fuzzing messages  -r RESP_DELAY, --resp_delay RESP_DELAY                        The time to wait for a FIX responseConsole Output:  --colour              enables coloured console output  --log_heartbeat       Log heartbeat messages by default  --verbose             Increase verbosityPreloaded Commands:  -P [PRELOAD ...], --preload [PRELOAD ...]                        predefined commands to run on startupExample usage:  python initiator.py ./config/initiator.cfg --colour --preload \  "message new ORD-BUY" "message edit 38=100" "message send" "exit"

Example

$ python3 ./initiator.py config/initiator.cfg --colour    ___________  __ __________   / ____/  _/ |/ //  _/_  __/  / /_   / / |   / / /  / / / __/ _/ / /   |_/ /  / //_/   /___//_/|_/___/ /_/                   version 0.1[+] Interceptor Started on TCP 8080 -> 10.0.2.15:9878[+] FIX Session created: FIX.4.2:SOMECLIENT->FIXIMULATORTRADE.[+] Logging on to 'FIX.4.2:SOMECLIENT->FIXIMULATORTRADE'...-> OUT(ADM): S:0 [00000] b'8=FIX.4.2|9=87|35=A|34=1|49=SOMECLIENT|52=20241206-03:02:24.297|56=FIXIMULATORTR...<- IN (ADM): S:0 [00001] b'8=FIX.4.2|9=87|35=A|34=1|49=FIXIMULATORTRADE|52=20241206-03:02:24.303|56=SOMECLI...[+] Successful Logon to session 'FIX.4.2:SOMECLIENT->FIXIMULATORTRADE'.[FIX/SESS-0]> message new ORD-BUY[+] Storing message: NEW_ORDER_D...[+] Message saved: FIX.4.2:NEW_ORDER_D-D:1[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]> message edit 40=1 54=1 55=THQI 38=500 -44[+] Message updated: 40=1[+] Message updated: 54=1[+] Message updated: 55=THQI[+] Message updated: 38=500[+] Message updated: 44 removed[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]> message view8(BeginString)=FIX.4.29(BodyLength)=15135(MsgType)=D34(MsgSeqNum)=149(SenderCompID)=SOMECLIENT52(SendingTime)=20241206-03:02:2456(TargetCompID)=FIXIMULATORTRADE11(ClOrdID)=1-1733454144.39955121(HandlInst)=138(OrderQty)=50040(OrdType)=154(Side)=155(Symbol)=THQI59(TimeInForce)=160(TransactTime)=20241206-03:02:2410(CheckSum)=086[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]> message send[+] Sending message...-> OUT(APP): S:0 [00002] b'8=FIX.4.2|9=148|35=D|34=2|49=SOMECLIENT|52=20241206-03:02:24.440|56=FIXIMULATORT...<- IN (APP): S:0 [00003] b'8=FIX.4.2|9=191|35=8|34=2|49=FIXIMULATORTRADE|52=20241206-03:02:24.452|56=SOMECL...[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]> history    ID  Route        Message------  -----------  -----------------------------------------------------------------------------------------     0  -> OUT(ADM)  A (LOGON) 8=FIX.4.2|9=87|35=A|34=1|49=SOMECLIENT|52=20241206-03:02:24.297|56=FIXIMULAT...     1  <- IN (ADM)  A (LOGON) 8=FIX.4.2|9=87|35=A|34=1|49=FIXIMULATORTRADE|52=20241206-03:02:24.303|56=SOM...     2  -> OUT(APP)  D (NEW_ORDER_D) 8=FIX.4.2|9=148|35=D|34=2|49=SOMECLIENT|52=20241206-03:02:24.440|56=FI...     3  <- IN (APP)  8 (EXECUTION_REPORT) 8=FIX.4.2|9=191|35=8|34=2|49=FIXIMULATORTRADE|52=20241206-03:02:2...[FIX/SESS-0/FIX.4.2:NEW_ORDER_D-D:1]> exit[+] TERMINATING[+] Logging out of 'FIX.4.2:SOMECLIENT->FIXIMULATORTRADE'...-> OUT(ADM): S:0 [00006] b'8=FIX.4.2|9=69|35=5|34=4|49=SOMECLIENT|52=20241206-03:02:26.957|56=FIXIMULATORTR...<- IN (ADM): S:0 [00007] b'8=FIX.4.2|9=69|35=5|34=4|49=FIXIMULATORTRADE|52=20241206-03:02:26.963|56=SOMECLI...[+] Logged out of session 'FIX.4.2:SOMECLIENT->FIXIMULATORTRADE complete'.[+] Terminating Interceptor on TCP: 8080[+] Complete!