KNOWN_BUGS.md

Known Bugs and Replication Steps

1. remove_filter does not remove by index

• How to replicate:
  • Create an analyzer, add three filters: 'a', 'b', 'c'.
  • Call remove_filter(1).
  • Instead of removing the second filter, it may raise a ValueError or remove the wrong filter.

2. filter_data returns None on error instead of raising

• How to replicate:
  • Call filter_data with a non-existent file path.
  • Instead of raising an exception, it prints the error and returns None.

3. get_web_requests output format inconsistent with get_auth_requests

• How to replicate:
  • Use get_requests() for both a web log and an auth log.
  • Compare the output dictionaries: keys and order differ.

4. No handling for empty files

• How to replicate:
  • Run analyzer on an empty log file.
  • Returns empty list, but no warning or message is shown.

5. No handling for malformed log lines

• How to replicate:
  • Add a malformed line to a log file (e.g., missing fields).
  • Analyzer silently skips it; should log or count malformed lines.

6. No check for file encoding

• How to replicate:
  • Try to analyze a log file with non-UTF-8 encoding.
  • May crash with a UnicodeDecodeError.

7. Large files are read into memory at once (performance issue)

• How to replicate:
  • Analyze a very large log file (hundreds of MBs or more).
  • May cause high memory usage or crash.

8. There is no Exception/Error handling in file_all when Opening the file

• Add a Try / Except structure and include the following Except errors: -FileNotFoundError
  -IOError
• For these exceptions, log and raise an error