Problem:
- IPs reaching Score:100 but STILL not being auto-blocked
- write_ip_data_to_file was working correctly in subprocesses
- BUT main loop was OVERWRITING entire ip_data file every 2 seconds
- Line 3539 used ">" which truncates the file
- Auto-mitigation engine reads stale data from parent's IP_DATA array
- Parent's IP_DATA doesn't have subprocess updates (subshell isolation)
Example:
1. HTTP subprocess: IP reaches score=100, writes to file
2. 2 seconds later: Main loop OVERWRITES file with parent's IP_DATA
3. Auto-mitigation reads file: Score shows 0 or old value
4. IP never blocked!
Root Cause:
The original fix (write_ip_data_to_file) was correct, but the main
loop's periodic file write was destroying those updates.
Solution:
- Main loop now MERGES data instead of overwriting
- Reads existing file (contains fresh subprocess updates)
- Adds only NEW IPs from parent process
- Writes back existing entries (subprocess data takes priority)
- Uses flock to prevent race conditions
- Atomic replacement with .new file
This preserves subprocess updates while still allowing parent
process to add IPs it discovers.
Result:
- Subprocess updates (Score:100) now PERSIST
- Auto-mitigation engine sees correct scores
- IPs with score >= 80 will be blocked within 10 seconds
Testing:
Before: Score:100 shown but IP never blocked
After: Score:100 → INSTANT_BLOCK within 10 seconds
cschantz
4b6e655123