Redesign Scoped Access Tokens (#24767)

## Changes
- Adds the following high level access scopes, each with `read` and
`write` levels:
    - `activitypub`
    - `admin` (hidden if user is not a site admin)
    - `misc`
    - `notification`
    - `organization`
    - `package`
    - `issue`
    - `repository`
    - `user`
- Adds new middleware function `tokenRequiresScopes()` in addition to
`reqToken()`
  -  `tokenRequiresScopes()` is used for each high-level api section
- _if_ a scoped token is present, checks that the required scope is
included based on the section and HTTP method
  - `reqToken()` is used for individual routes
- checks that required authentication is present (but does not check
scope levels as this will already have been handled by
`tokenRequiresScopes()`
- Adds migration to convert old scoped access tokens to the new set of
scopes
- Updates the user interface for scope selection

### User interface example
<img width="903" alt="Screen Shot 2023-05-31 at 1 56 55 PM"
src="https://github.com/go-gitea/gitea/assets/23248839/654766ec-2143-4f59-9037-3b51600e32f3">
<img width="917" alt="Screen Shot 2023-05-31 at 1 56 43 PM"
src="https://github.com/go-gitea/gitea/assets/23248839/1ad64081-012c-4a73-b393-66b30352654c">

## tokenRequiresScopes  Design Decision
- `tokenRequiresScopes()` was added to more reliably cover api routes.
For an incoming request, this function uses the given scope category
(say `AccessTokenScopeCategoryOrganization`) and the HTTP method (say
`DELETE`) and verifies that any scoped tokens in use include
`delete:organization`.
- `reqToken()` is used to enforce auth for individual routes that
require it. If a scoped token is not present for a request,
`tokenRequiresScopes()` will not return an error

## TODO
- [x] Alphabetize scope categories
- [x] Change 'public repos only' to a radio button (private vs public).
Also expand this to organizations
- [X] Disable token creation if no scopes selected. Alternatively, show
warning
- [x] `reqToken()` is missing from many `POST/DELETE` routes in the api.
`tokenRequiresScopes()` only checks that a given token has the correct
scope, `reqToken()` must be used to check that a token (or some other
auth) is present.
   -  _This should be addressed in this PR_
- [x] The migration should be reviewed very carefully in order to
minimize access changes to existing user tokens.
   - _This should be addressed in this PR_
- [x] Link to api to swagger documentation, clarify what
read/write/delete levels correspond to
- [x] Review cases where more than one scope is needed as this directly
deviates from the api definition.
   - _This should be addressed in this PR_
   - For example: 
   ```go
	m.Group("/users/{username}/orgs", func() {
		m.Get("", reqToken(), org.ListUserOrgs)
		m.Get("/{org}/permissions", reqToken(), org.GetUserOrgsPermissions)
}, tokenRequiresScopes(auth_model.AccessTokenScopeCategoryUser,
auth_model.AccessTokenScopeCategoryOrganization),
context_service.UserAssignmentAPI())
   ```

## Future improvements
- [ ] Add required scopes to swagger documentation
- [ ] Redesign `reqToken()` to be opt-out rather than opt-in
- [ ] Subdivide scopes like `repository`
- [ ] Once a token is created, if it has no scopes, we should display
text instead of an empty bullet point
- [ ] If the 'public repos only' option is selected, should read
categories be selected by default

Closes #24501
Closes #24799

Co-authored-by: Jonathan Tran <jon@allspice.io>
Co-authored-by: Kyle D <kdumontnu@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>

1 files changed, 4 insertions, 4 deletions

diff --git a/tests/integration/api_issue_label_test.go b/tests/integration/api_issue_label_test.go
index 1824015983..d2d8af102b 100644
--- a/tests/integration/api_issue_label_test.go
+++ b/tests/integration/api_issue_label_test.go
@@ -25,7 +25,7 @@ func TestAPIModifyLabels(t *testing.T) {
 	repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: 2})
 	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
 	session := loginUser(t, owner.Name)
-	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeRepo)
+	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
 	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/labels?token=%s", owner.Name, repo.Name, token)
 
 	// CreateLabel
@@ -97,7 +97,7 @@ func TestAPIAddIssueLabels(t *testing.T) {
 	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
 
 	session := loginUser(t, owner.Name)
-	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeRepo)
+	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
 	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/labels?token=%s",
 		repo.OwnerName, repo.Name, issue.Index, token)
 	req := NewRequestWithJSON(t, "POST", urlStr, &api.IssueLabelsOption{
@@ -120,7 +120,7 @@ func TestAPIReplaceIssueLabels(t *testing.T) {
 	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
 
 	session := loginUser(t, owner.Name)
-	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeRepo)
+	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteIssue)
 	urlStr := fmt.Sprintf("/api/v1/repos/%s/%s/issues/%d/labels?token=%s",
 		owner.Name, repo.Name, issue.Index, token)
 	req := NewRequestWithJSON(t, "PUT", urlStr, &api.IssueLabelsOption{
@@ -144,7 +144,7 @@ func TestAPIModifyOrgLabels(t *testing.T) {
 	owner := unittest.AssertExistsAndLoadBean(t, &user_model.User{ID: repo.OwnerID})
 	user := "user1"
 	session := loginUser(t, user)
-	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeRepo, auth_model.AccessTokenScopeAdminOrg)
+	token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteRepository, auth_model.AccessTokenScopeWriteOrganization)
 	urlStr := fmt.Sprintf("/api/v1/orgs/%s/labels?token=%s", owner.Name, token)
 
 	// CreateLabel