Provide the ability to set password hash algorithm parameters

[zeripath]

This PR refactors and improves the password hashing code within gitea and makes it possible for server administrators to set the password hashing parameters

In addition it takes the opportunity to adjust the settings for pbkdf2 in order to make the hashing a little stronger.

The majority of this work was inspired by PR #14751 and I would like to thank @boppy for their work on this.

Thanks to @Gusted for the suggestion to adjust the pbkdf2 hashing parameters.

Close #14751

[jolheiser]

import formatting

[wxiaoguang]

Very clear! 👍

[codecov-commenter]

Codecov Report

Merging #22942 (17f9402) into main (c8093a1) will increase coverage by 0.09%.
The diff coverage is 54.19%.

❗ Current head 17f9402 differs from pull request most recent head 3e43075. Consider uploading reports for the commit 3e43075 to get more accurate results

📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more

@@            Coverage Diff             @@
##             main   #22942      +/-   ##
==========================================
+ Coverage   47.29%   47.39%   +0.09%     
==========================================
  Files        1113     1128      +15     
  Lines      150159   150504     +345     
==========================================
+ Hits        71023    71327     +304     
- Misses      70700    70716      +16     
- Partials     8436     8461      +25     

Impacted Files	Coverage Δ
cmd/admin.go	0.00% <ø> (ø)
cmd/admin_user_change_password.go	0.00% <0.00%> (ø)
cmd/admin_user_create.go	0.00% <0.00%> (ø)
cmd/admin_user_delete.go	0.00% <0.00%> (ø)
cmd/admin_user_generate_access_token.go	0.00% <0.00%> (ø)
cmd/admin_user_list.go	0.00% <0.00%> (ø)
cmd/admin_user_must_change_password.go	0.00% <0.00%> (ø)
models/asymkey/gpg_key_import.go	54.54% <ø> (ø)
models/repo/repo_unit.go	75.70% <ø> (ø)
models/user/must_change_password.go	0.00% <0.00%> (ø)
... and 139 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[lunny]

LG-TM bot