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Basic Gitea Information

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Basic Structure

The basic Gitea environment structure is to group repos by organization(s), each of them may contain several repositories and several teams. However, note that just like in github users can have repos outside of the organization.
Moreover, a user can be a member of different organizations. Within the organization the user may have different permissions over each repository.
A user may also be part of different teams with different permissions over different repos.
And finally repositories may have special protection mechanisms.

Permissions

Organizations

When an organization is created a team called Owners is created and the user is put inside of it. This team will give admin access over the organization, those permissions and the name of the team cannot be modified.
Org admins (owners) can select the visibility of the organization:
  • Public
  • Limited (logged in users only)
  • Private (members only)
Org admins can also indicate if the repo admins can add and or remove access for teams. They can also indicate the max number of repos.
When creating a new team, several important settings are selected:
  • It's indicated the repos of the org the members of the team will be able to access: specific repos (repos where the team is added) or all.
  • It's also indicated if members can create new repos (creator will get admin access to it)
  • The permissions the members of the repo will have:
    • Administrator access
    • Specific access:

Teams & Users

In a repo, the org admin and the repo admins (if allowed by the org) can manage the roles given to collaborators (other users) and teams. There are 3 possible roles:
  • Administrator
  • Write
  • Read

Gitea Authentication

Web Access

Using username + password and potentially (and recommended) a 2FA.

SSH Keys

You can configure your account with one or several public keys allowing the related private key to perform actions on your behalf. http://localhost:3000/user/settings/keys​

GPG Keys

You cannot impersonate the user with these keys but if you don't use it it might be possible that you get discover for sending commits without a signature.

Personal Access Tokens

You can generate personal access token to give an application access to your account. A personal access token gives full access over your account: http://localhost:3000/user/settings/applications​

Oauth Applications

Just like personal access tokens Oauth applications will have complete access over your account and the places your account has access because, as indicated in the docs, scopes aren't supported yet:

Deploy keys

Deploy keys might have read-only or write access to the repo, so they might be interesting to compromise specific repos.

Branch Protections

Branch protections are designed to not give complete control of a repository to the users. The goal is to put several protection methods before being able to write code inside some branch.
The branch protections of a repository can be found in https://localhost:3000/<orgname>/<reponame>/settings/branches
It's not possible to set a branch protection at organization level. So all of them must be declared on each repo.
Different protections can be applied to a branch (like to master):
  • Disable Push: No-one can push to this branch
  • Enable Push: Anyone with access can push, but not force push.
  • Whitelist Restricted Push: Only selected users/teams can push to this branch (but no force push)
  • Enable Merge Whitelist: Only whitelisted users/teams can merge PRs.
  • Enable Status checks: Require status checks to pass before merging.
  • Require approvals: Indicate the number of approvals required before a PR can be merged.
  • Restrict approvals to whitelisted: Indicate users/teams that can approve PRs.
  • Block merge on rejected reviews: If changes are requested, it cannot be merged (even if the other checks pass)
  • Block merge on official review requests: If there official review requests it cannot be merged
  • Dismiss stale approvals: When new commits, old approvals will be dismissed.
  • Require Signed Commits: Commits must be signed.
  • Block merge if pull request is outdated
  • Protected/Unprotected file patterns: Indicate patterns of files to protect/unprotect against changes
As you can see, even if you managed to obtain some credentials of a user, repos might be protected avoiding you to pushing code to master for example to compromise the CI/CD pipeline.
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