Backport #20299. Follow #20298. Only the `GlobalInitInstalled` function should prepare the SSH files for external server or starts the builtin server.
* `trustedUserCaKeys` is removed, use `SSH.TrustedUserCAKeys` directly
* introduce `ssh.Init`, move the SSH init code from `routers/init.go` to it
* `ssh.Init` will start builtin SSH server or prepare external SSH server files

Addition to: Show scrollbar when necessary #20142
Fixes the "empty" scrollbars with Firefox.

Backport #20289

The code is as old as back to 2016, creating the directory automatically is not correct IMO.

In other places for ssh key writing (RewriteAllPrincipalKeys / appendAuthorizedKeysToFile, etc), the directory will still be created when updating the keys.

This PR will resolve the confusing and annoying problem: the dummy and empty ".ssh" directory in new git home

Backport #20300

  - Update goldmark to v1.4.13 to fix a issue with quotes after a empty list item(See https://github.com/yuin/goldmark/issues/313) and downstream issue https://codeberg.org/Codeberg/Community/issues/645

Backport #20275

Currently when a Team has read access to a organization's non-private repository, their access(in the `access` table) won't be stored in the database. This cause issues for code that rely on read access being stored, like retrieving all users who have read permission to that repository(even though this is confusing as this doesn't include all registered users). So from now-on if we see that the repository is owned by a organization don't increase the `minMode` to write permission.

Resolves #20083

Before, in #19732, the old home directory is not correct.
This PR introduces a new config option for git home: git.HOME_PATH,
which is default to %(APP_DATA_PATH)/home

And pass env GNUPGHOME to git command, force Gitea to use a stable GNUPGHOME directory

Backport #20108
Backport #20236
Backport #20251

Make notification bell more prominent on mobile
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: Tyrone Yeh <siryeh@gmail.com>
Signed-off-by: Andrew Thornton <art27@cantab.net>

- Backport (#20277
  - This code is only valid when `refNumeric` exist(otherwise we didn't find such numeric PR and can skip that check) and give a free-pas to the  "BEFORE" check when `ref` is nil.
  - Resolves #20109

Backport #20220

Users who are following or being followed by a user should only be
displayed if the viewing user can see them.
Signed-off-by: Andrew Thornton <art27@cantab.net>

Backport #20200

The uid provided to the group filter must be properly escaped using the provided
ldap.EscapeFilter function.

Fix #20181
Signed-off-by: Andrew Thornton <art27@cantab.net>

Backport #20171

The setting `DEFAULT_SHOW_FULL_NAME` promises to use the user's full name everywhere it can be used.

Unfortunately the function `*user_model.User.ShortName()` currently uses the `.Name` instead - but this should also use the `.FullName()`.

Therefore we should make `*user_model.User.ShortName()` base its pre-shortened name on the `.FullName()` function.
Co-authored-by: Baekjun Kim <36013575+kimbj95@users.noreply.github.com>

Backport #20243

Adjust the max-widths for the repository file table to allow for nicer
resizing of the names and commit messages.

Fix #20040
Signed-off-by: Andrew Thornton <art27@cantab.net>

 ## Screenshots

 ## MediaXL
![Screenshot from 2022-07-05 10-22-12](https://user-images.githubusercontent.com/1824502/177295867-7ba8cf60-8f61-4227-892f-e5a0477e4146.png)

 ## MediaLg
![Screenshot from 2022-07-05 10-24-37](https://user-images.githubusercontent.com/1824502/177296301-e066e206-10f7-4a15-a68b-0f772a95f369.png)

 ## MediaMd
![Screenshot from 2022-07-05 10-23-03](https://user-images.githubusercontent.com/1824502/177295965-69397649-16ca-456a-bc0c-ed507fcb7f44.png)

 ## MediaSm
![Screenshot from 2022-07-05 10-26-44](https://user-images.githubusercontent.com/1824502/177296700-ca2a853b-c47b-4592-baf4-4bc08a7e1c9c.png

)
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

Backport #20244 

* https://github.com/go-gitea/gitea/issues/20240

At the moment, Firefox (iOS) (10x) has an engine bug. See https://github.com/go-gitea/gitea/issues/20240
If a script inserts a newly created (and content changed) element into DOM, there will be a nonsense error event reporting: Script error: line 0, col 0.

This PR ignores such nonsense error event.

Fix #20240

- Backport #20234
 
  - Initialize the popup for the tooltip inside the new code comment.
  - This works and is good enough to have this issue fixed for 1.17
 
Fix #20068

Backport #20158

Unforunately the previous PR #20035 created indices that were not helpful
for SQLite. This PR adjusts these after testing using the try.gitea.io db.

Fix #20129
Signed-off-by: Andrew Thornton <art27@cantab.net>

* Fix `dump-repo` git init

* Fix wrong error type for NullDownloader

Check if project has the same repository id with issue when assign project to issue (#20133) (#20188)

* Check if project has the same repository id with issue when assign project to issue

* Check if issue's repository id match project's repository id

* Add more permission checking

* Remove invalid argument

* Fix errors

* Add generic check

* Remove duplicated check

* Return error + add check for new issues

* Apply suggestions from code review
Co-authored-by: Gusted <williamzijl7@hotmail.com>
Co-authored-by: KN4CK3R <admin@oldschoolhack.me>
Co-authored-by: 6543 <6543@obermui.de>

Synced the list to what is allowed on GitHub currently.

- Backport #20142
  - Firefox on Windows will unconditionally show scrollbars when you specify `overflow: scroll`. This is bad behavior, as you don't always need the scrollbar. Changing the scroll value to auto fixes this issue and only shows the scrollbar when necessary.
  - Resolves #20139

Backport #20127

Store the file uuid(which is returned by Gitea in the upload file response) onto the file object, so it can be used for the remove feature to specify this file.

Fix #20115

The code introduced by #18185 gets the error from response after it was processed by goth.

That is incorrect, as goth (and golang.org/x/oauth) doesn't really care about the error, and it sends a token request with an empty authorization code to the server anyway, which always results in a `oauth2: cannot fetch token: 400 Bad Request` error from goth.
It means that unless the "state" parameter is omitted from the error response (which is required to be present, according to [RFC 6749, Section 4.1.2.1](https://datatracker.ietf.org/doc/html/rfc6749#section-4.1.2.1)) or the page is reloaded (makes the session invalid), a 500 Internal Server Error page will be displayed.
This fixes it by handling the error before the request is passed to goth.

Fixes #20080

Backport #20070 

Just get all tags when creating the compare dropdown.

Fix #19936 

Co-authored-by: Gusted <williamzijl7@hotmail.com>
Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

* Disable federation by default (#20045)

- Backport #20045
  - A Gitea instance should choose whetever they want to federate(as once it has more features also brings extra costs/moderation/unexpected behavior) with other AP/ForgeFed software.

* Fix tests

There appears to be a strange bug whereby the comment_id index can sometimes be missed
or missing from the action table despite the sync2 that should create it in the earlier
part of this migration. However, looking through the code for Sync2 there is no need
for this pre-code to exist and Sync2 should drop/create the indices as necessary.

I think therefore we should simplify the migration to simply be Sync2.
Signed-off-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: 6543 <6543@obermui.de>

Mysql TEXT has a limit of 64KB, change this to LONGTEXT in mysql only so we can have bigger hook payloads.

Postgresql has unlimited TEXT - https://www.postgresql.org/docs/current/datatype-character.html
Sqlite has unlimited TEXT - https://www.sqlitetutorial.net/sqlite-data-types/#:~:text=The%20maximum%20length%20of%20TEXT,SQLite%20supports%20various%20character%20encodings

.

Backport of #20038
Co-authored-by: zeripath <art27@cantab.net>

Backport #20019

- Resolves #20018

Fixes #19090

If the user-agent starts with git and user must change password but
hasn't return a 401 with the message.

It must be a 401, git doesn't seem to show the contents of the error message
when we return a 403
Co-authored-by: 6543 <6543@obermui.de>

Backport #20032 

In DeleteIssue the PR git head reference should be `/refs/pull/xxx/head` not `/refs/pull/xxx`

Fix #19655
Signed-off-by: a1012112796 <1012112796@qq.com>

Backport #20029 

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

Fixes #19979

fgprof is a sampling Go profiler that allows you to analyze On-CPU as
well as Off-CPU (e.g. I/O) time together.

Go's builtin sampling CPU profiler can only show On-CPU time, but it's
better than fgprof at that. Go also includes tracing profilers that can
analyze I/O, but they can't be combined with the CPU profiler.

fgprof is designed for analyzing applications with mixed I/O and CPU
workloads. This kind of profiling is also known as wall-clock profiling.

Whilst fgprof can cause significant STW latencies in applications with a
lot of goroutines (> 1-10k), these latencies only occur if the profile
is requested - it doesn't cause a delay by simply being available.

The fgprof profile is mounted on
`http://localhost:6060/debug/fgprof?seconds=3`

Signed-off-by: Andrew Thornton <art27@cantab.net>