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Leslie Tilton 800a21d8a3 [PM-28548] Phishing Blocker support links (#18070)
* Change domain terminology to web addresses

* Added phishing resource file

* Finish renaming and adding runtime configuration for domains vs links setting

* Update reference

* Add matching functions per resource

* correct URL matching logic for links-based detection

Problem:
The phishing link matcher was failing to detect known phishing URLs due to
two issues:

1. Protocol mismatch: Entries in the phishing list use `http://` but users
   typically visit `https://` versions. The matcher was comparing full URLs
   including protocol, causing legitimate matches to fail.
   - List entry: `http://smartdapptradxx.pages.dev`
   - User visits: `https://smartdapptradxx.pages.dev/`
   - Result: No match (incorrect)

2. Hostname-only matching would have caused false positives: An earlier
   attempt to fix #1 included hostname-only comparison, which defeats the
   purpose of links-based detection. The goal of PM-28548 is precise URL
   matching to avoid blocking entire domains (like pages.dev, github.io)
   when only specific paths are malicious.

Solution:
- Always strip protocol (http:// or https://) from both entry and URL
  before comparison, treating them as equivalent
- Remove hostname-only matching to maintain precision
- Keep prefix matching for subpaths, query strings, and fragments

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Co-authored-by: Alex <adewitt@bitwarden.com>
2025-12-30 09:06:30 -08:00
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2025-12-29 09:10:34 -06:00