Remove cookies preserving fireproof websites

[cmonfortep]

Task/Issue URL: https://app.asana.com/0/0/1170688450957740/f
Tech Design URL: https://app.asana.com/0/481882893211075/1170688450957739/f
CC:

Description:

What's included in this PR?
Implement logic to remove cookies preserving the ones related to fireproof website.

When clearing cookies:

• Try to directly remove cookies from WebView database, preserving the ones with hosts related to a fireproof website
• If process fails, fallback to remove all the cookies to avoid any leak
• Send pixels in the following scenarios:
• database path not found
• database can't be opened
• delete query fails

What's NOT included in this PR?

• UI improvements from design feedback
• Pixels from user interactions with Fireproof options

Steps to test this PR:

Test 1: No cookies preserved

1. Fresh install
2. Visit some different websites
3. Press fire button
4. Access device file explorer
5. Ensure cookie database doesn't exist or database is empty

Test 2: DDG preserved

1. Fresh install
2. Visit duckduckgo website
3. Set a theme (it will create a cookies)
4. Press fire button
5. Visit duckduckgo again
6. Ensure theme has been preserved

Test 3: Fireproof website preserved

1. Fresh install
2. Visit any website (e.g: twitter.com)
3. Perform an action that will create cookies (e.g: login)
4. Fireproof website
5. Press fire button
6. Visit fireproof website
7. Ensure state has been preserved (e.g: you are logged in)

Test 4: Database not found: Database not found, all cookies removed

1. Replace following line from WebViewDatabaseLocator:
   Line 28: private val knownLocations = listOf("/fakePath")
2. Fresh install
3. Visit any website (e.g: twitter.com)
4. Press fire button
5. Ensure pixel m_cdb_nf sent
6. Ensure captured and recorded
7. Access device file explorer
8. Ensure cookie database doesn't exist or database is empty

Test 5: Error opening database, all cookies removed

1. Replace the following line from SQLCookieRemover, line 70:

            SQLiteDatabase.openDatabase(
                "fakepath",
                null,
                SQLiteDatabase.OPEN_READWRITE,
                DatabaseErrorHandler { Timber.e("COOKIE: onCorruption") })

1. Fresh install
2. Visit any website (e.g: twitter.com)
3. Press fire button
4. Ensure pixel m_cdb_oe sent
5. Ensure captured and recorded
6. Access device file explorer
7. Ensure cookie database doesn't exist or database is empty

Test 6: Error deleting cookies, all cookies removed

1. Replace the following line from SQLCookieRemover, line 87:

val number = delete("faketable", whereClause, excludedSites.toTypedArray())

1. Fresh install
2. Visit any website (e.g: twitter.com)
3. Press fire button
4. Ensure pixel m_cdb_de sent
5. Ensure captured and recorded
6. Access device file explorer
7. Ensure cookie database doesn't exist or database is empty

Additional tests:
Instead of using firebutton, you can use auto cleaner data from settings.

---

Internal references:

Software Engineering Expectations
Technical Design Template

[CDRussell]

There is a strange transition when going from Settings to Fireproof Website settings. I'm only noticing it on my Android R (DP3) Pixel 2 so there's very good chance it's not related to any changes you've made.

[CDRussell]

Generally, working well and an excellent PR! 🎉

I have some concerns about the possibility of pixels getting accidentally dropped for you to consider

[cmonfortep]

@CDRussell this is ready for review. thanks.

[CDRussell]

Slick! 🎉