Don't notify unless the user was explicitly mentioned (pill)

[lapin-b]

Description

In a few words, whenever someone answers a message from somebody else, I get notified becasue my username is in my domain name. For example, when @userb:usera.website answers to @userc:usera.website, @usera:usera.website gets notified.

Here's a more visual example of what's happening:

I'm mentioned and notified despite the answer not being directed at me.

Steps to reproduce

Take the example case from abose. If needed, I can add a list of steps to follow to reproduce the case.

What's expected: I shouldn't get notified when an answer is directed at someone else despite my username appearing in my domain name.

Log: not relevant

Version information

• Platform: Desktop and web app

Web app

• Browser: Firefox 66.0.1
• OS: Arch Linux, kernel version 5.0.3 (if that matters)
• URL: Self hosted chat, version 1.0.5

Desktop app

• OS: Arch Linux, kernel version 5.0.3 (if that matters)
• Version: 1.0.5

[turt2live]

Have altered the title to adopt this as the canonical "notifications shouldn't do anything unless I'm mentioned" issue.

[turt2live]

See also:

• Change mention type from plaintext to special symbol like @ #4973
• Mentioning matrix username will notify all users with substring display names #8497
• @room should require a direct, intentional, action to ping #5420

[grinapo]

I think the current categories are "flawed" or not complete.

A user is called "dolphin" using @elephant:kangaroo.net.

• match on display name matches anything containing the string "dolphin"
• match on username seems to match on anything containing "elephant"

However:

• match on display name will erroneously match on "bob" @will:dolphin.net, or "jane" @dolphin:racoon.org
• match on username will err match on "joe" @sam:elephant.com, "elephant" @snake.fi

So

• there is no "match on mxid" option, which only would match "@elephant:kangaroo.net" string, pill or else

And in an ideal world

• display name match should not match on hostname substrings
• username likewise shall not match on hostname substrings

[t3chguy]

Duplicate of #8431