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https://codeberg.org/forgejo/forgejo.git
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18de83b2a3
## 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>
360 lines
15 KiB
Go
360 lines
15 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package v1_20 //nolint
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import (
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"fmt"
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"strings"
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"code.gitea.io/gitea/modules/log"
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"xorm.io/xorm"
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)
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// unknownAccessTokenScope represents the scope for an access token that isn't
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// known be an old token or a new token.
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type unknownAccessTokenScope string
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// AccessTokenScope represents the scope for an access token.
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type AccessTokenScope string
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// for all categories, write implies read
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const (
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AccessTokenScopeAll AccessTokenScope = "all"
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AccessTokenScopePublicOnly AccessTokenScope = "public-only" // limited to public orgs/repos
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AccessTokenScopeReadActivityPub AccessTokenScope = "read:activitypub"
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AccessTokenScopeWriteActivityPub AccessTokenScope = "write:activitypub"
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AccessTokenScopeReadAdmin AccessTokenScope = "read:admin"
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AccessTokenScopeWriteAdmin AccessTokenScope = "write:admin"
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AccessTokenScopeReadMisc AccessTokenScope = "read:misc"
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AccessTokenScopeWriteMisc AccessTokenScope = "write:misc"
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AccessTokenScopeReadNotification AccessTokenScope = "read:notification"
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AccessTokenScopeWriteNotification AccessTokenScope = "write:notification"
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AccessTokenScopeReadOrganization AccessTokenScope = "read:organization"
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AccessTokenScopeWriteOrganization AccessTokenScope = "write:organization"
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AccessTokenScopeReadPackage AccessTokenScope = "read:package"
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AccessTokenScopeWritePackage AccessTokenScope = "write:package"
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AccessTokenScopeReadIssue AccessTokenScope = "read:issue"
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AccessTokenScopeWriteIssue AccessTokenScope = "write:issue"
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AccessTokenScopeReadRepository AccessTokenScope = "read:repository"
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AccessTokenScopeWriteRepository AccessTokenScope = "write:repository"
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AccessTokenScopeReadUser AccessTokenScope = "read:user"
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AccessTokenScopeWriteUser AccessTokenScope = "write:user"
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)
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// accessTokenScopeBitmap represents a bitmap of access token scopes.
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type accessTokenScopeBitmap uint64
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// Bitmap of each scope, including the child scopes.
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const (
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// AccessTokenScopeAllBits is the bitmap of all access token scopes
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accessTokenScopeAllBits accessTokenScopeBitmap = accessTokenScopeWriteActivityPubBits |
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accessTokenScopeWriteAdminBits | accessTokenScopeWriteMiscBits | accessTokenScopeWriteNotificationBits |
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accessTokenScopeWriteOrganizationBits | accessTokenScopeWritePackageBits | accessTokenScopeWriteIssueBits |
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accessTokenScopeWriteRepositoryBits | accessTokenScopeWriteUserBits
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accessTokenScopePublicOnlyBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeReadActivityPubBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteActivityPubBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadActivityPubBits
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accessTokenScopeReadAdminBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteAdminBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadAdminBits
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accessTokenScopeReadMiscBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteMiscBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadMiscBits
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accessTokenScopeReadNotificationBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteNotificationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadNotificationBits
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accessTokenScopeReadOrganizationBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteOrganizationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadOrganizationBits
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accessTokenScopeReadPackageBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWritePackageBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadPackageBits
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accessTokenScopeReadIssueBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteIssueBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadIssueBits
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accessTokenScopeReadRepositoryBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteRepositoryBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadRepositoryBits
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accessTokenScopeReadUserBits accessTokenScopeBitmap = 1 << iota
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accessTokenScopeWriteUserBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadUserBits
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// The current implementation only supports up to 64 token scopes.
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// If we need to support > 64 scopes,
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// refactoring the whole implementation in this file (and only this file) is needed.
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)
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// allAccessTokenScopes contains all access token scopes.
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// The order is important: parent scope must precede child scopes.
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var allAccessTokenScopes = []AccessTokenScope{
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AccessTokenScopePublicOnly,
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AccessTokenScopeWriteActivityPub, AccessTokenScopeReadActivityPub,
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AccessTokenScopeWriteAdmin, AccessTokenScopeReadAdmin,
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AccessTokenScopeWriteMisc, AccessTokenScopeReadMisc,
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AccessTokenScopeWriteNotification, AccessTokenScopeReadNotification,
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AccessTokenScopeWriteOrganization, AccessTokenScopeReadOrganization,
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AccessTokenScopeWritePackage, AccessTokenScopeReadPackage,
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AccessTokenScopeWriteIssue, AccessTokenScopeReadIssue,
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AccessTokenScopeWriteRepository, AccessTokenScopeReadRepository,
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AccessTokenScopeWriteUser, AccessTokenScopeReadUser,
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}
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// allAccessTokenScopeBits contains all access token scopes.
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var allAccessTokenScopeBits = map[AccessTokenScope]accessTokenScopeBitmap{
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AccessTokenScopeAll: accessTokenScopeAllBits,
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AccessTokenScopePublicOnly: accessTokenScopePublicOnlyBits,
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AccessTokenScopeReadActivityPub: accessTokenScopeReadActivityPubBits,
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AccessTokenScopeWriteActivityPub: accessTokenScopeWriteActivityPubBits,
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AccessTokenScopeReadAdmin: accessTokenScopeReadAdminBits,
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AccessTokenScopeWriteAdmin: accessTokenScopeWriteAdminBits,
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AccessTokenScopeReadMisc: accessTokenScopeReadMiscBits,
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AccessTokenScopeWriteMisc: accessTokenScopeWriteMiscBits,
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AccessTokenScopeReadNotification: accessTokenScopeReadNotificationBits,
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AccessTokenScopeWriteNotification: accessTokenScopeWriteNotificationBits,
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AccessTokenScopeReadOrganization: accessTokenScopeReadOrganizationBits,
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AccessTokenScopeWriteOrganization: accessTokenScopeWriteOrganizationBits,
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AccessTokenScopeReadPackage: accessTokenScopeReadPackageBits,
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AccessTokenScopeWritePackage: accessTokenScopeWritePackageBits,
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AccessTokenScopeReadIssue: accessTokenScopeReadIssueBits,
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AccessTokenScopeWriteIssue: accessTokenScopeWriteIssueBits,
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AccessTokenScopeReadRepository: accessTokenScopeReadRepositoryBits,
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AccessTokenScopeWriteRepository: accessTokenScopeWriteRepositoryBits,
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AccessTokenScopeReadUser: accessTokenScopeReadUserBits,
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AccessTokenScopeWriteUser: accessTokenScopeWriteUserBits,
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}
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// hasScope returns true if the string has the given scope
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func (bitmap accessTokenScopeBitmap) hasScope(scope AccessTokenScope) (bool, error) {
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expectedBits, ok := allAccessTokenScopeBits[scope]
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if !ok {
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return false, fmt.Errorf("invalid access token scope: %s", scope)
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}
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return bitmap&expectedBits == expectedBits, nil
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}
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// toScope returns a normalized scope string without any duplicates.
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func (bitmap accessTokenScopeBitmap) toScope(unknownScopes *[]unknownAccessTokenScope) AccessTokenScope {
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var scopes []string
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// Preserve unknown scopes, and put them at the beginning so that it's clear
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// when debugging.
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if unknownScopes != nil {
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for _, unknownScope := range *unknownScopes {
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scopes = append(scopes, string(unknownScope))
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}
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}
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// iterate over all scopes, and reconstruct the bitmap
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// if the reconstructed bitmap doesn't change, then the scope is already included
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var reconstruct accessTokenScopeBitmap
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for _, singleScope := range allAccessTokenScopes {
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// no need for error checking here, since we know the scope is valid
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if ok, _ := bitmap.hasScope(singleScope); ok {
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current := reconstruct | allAccessTokenScopeBits[singleScope]
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if current == reconstruct {
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continue
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}
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reconstruct = current
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scopes = append(scopes, string(singleScope))
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}
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}
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scope := AccessTokenScope(strings.Join(scopes, ","))
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scope = AccessTokenScope(strings.ReplaceAll(
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string(scope),
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"write:activitypub,write:admin,write:misc,write:notification,write:organization,write:package,write:issue,write:repository,write:user",
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"all",
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))
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return scope
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}
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// parse the scope string into a bitmap, thus removing possible duplicates.
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func (s AccessTokenScope) parse() (accessTokenScopeBitmap, *[]unknownAccessTokenScope) {
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var bitmap accessTokenScopeBitmap
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var unknownScopes []unknownAccessTokenScope
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// The following is the more performant equivalent of 'for _, v := range strings.Split(remainingScope, ",")' as this is hot code
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remainingScopes := string(s)
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for len(remainingScopes) > 0 {
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i := strings.IndexByte(remainingScopes, ',')
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var v string
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if i < 0 {
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v = remainingScopes
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remainingScopes = ""
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} else if i+1 >= len(remainingScopes) {
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v = remainingScopes[:i]
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remainingScopes = ""
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} else {
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v = remainingScopes[:i]
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remainingScopes = remainingScopes[i+1:]
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}
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singleScope := AccessTokenScope(v)
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if singleScope == "" {
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continue
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}
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if singleScope == AccessTokenScopeAll {
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bitmap |= accessTokenScopeAllBits
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continue
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}
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bits, ok := allAccessTokenScopeBits[singleScope]
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if !ok {
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unknownScopes = append(unknownScopes, unknownAccessTokenScope(string(singleScope)))
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}
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bitmap |= bits
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}
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return bitmap, &unknownScopes
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}
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// NormalizePreservingUnknown returns a normalized scope string without any
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// duplicates. Unknown scopes are included.
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func (s AccessTokenScope) NormalizePreservingUnknown() AccessTokenScope {
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bitmap, unknownScopes := s.parse()
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return bitmap.toScope(unknownScopes)
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}
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// OldAccessTokenScope represents the scope for an access token.
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type OldAccessTokenScope string
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const (
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OldAccessTokenScopeAll OldAccessTokenScope = "all"
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OldAccessTokenScopeRepo OldAccessTokenScope = "repo"
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OldAccessTokenScopeRepoStatus OldAccessTokenScope = "repo:status"
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OldAccessTokenScopePublicRepo OldAccessTokenScope = "public_repo"
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OldAccessTokenScopeAdminOrg OldAccessTokenScope = "admin:org"
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OldAccessTokenScopeWriteOrg OldAccessTokenScope = "write:org"
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OldAccessTokenScopeReadOrg OldAccessTokenScope = "read:org"
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OldAccessTokenScopeAdminPublicKey OldAccessTokenScope = "admin:public_key"
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OldAccessTokenScopeWritePublicKey OldAccessTokenScope = "write:public_key"
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OldAccessTokenScopeReadPublicKey OldAccessTokenScope = "read:public_key"
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OldAccessTokenScopeAdminRepoHook OldAccessTokenScope = "admin:repo_hook"
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OldAccessTokenScopeWriteRepoHook OldAccessTokenScope = "write:repo_hook"
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OldAccessTokenScopeReadRepoHook OldAccessTokenScope = "read:repo_hook"
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OldAccessTokenScopeAdminOrgHook OldAccessTokenScope = "admin:org_hook"
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OldAccessTokenScopeNotification OldAccessTokenScope = "notification"
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OldAccessTokenScopeUser OldAccessTokenScope = "user"
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OldAccessTokenScopeReadUser OldAccessTokenScope = "read:user"
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OldAccessTokenScopeUserEmail OldAccessTokenScope = "user:email"
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OldAccessTokenScopeUserFollow OldAccessTokenScope = "user:follow"
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OldAccessTokenScopeDeleteRepo OldAccessTokenScope = "delete_repo"
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OldAccessTokenScopePackage OldAccessTokenScope = "package"
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OldAccessTokenScopeWritePackage OldAccessTokenScope = "write:package"
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OldAccessTokenScopeReadPackage OldAccessTokenScope = "read:package"
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OldAccessTokenScopeDeletePackage OldAccessTokenScope = "delete:package"
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OldAccessTokenScopeAdminGPGKey OldAccessTokenScope = "admin:gpg_key"
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OldAccessTokenScopeWriteGPGKey OldAccessTokenScope = "write:gpg_key"
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OldAccessTokenScopeReadGPGKey OldAccessTokenScope = "read:gpg_key"
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OldAccessTokenScopeAdminApplication OldAccessTokenScope = "admin:application"
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OldAccessTokenScopeWriteApplication OldAccessTokenScope = "write:application"
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OldAccessTokenScopeReadApplication OldAccessTokenScope = "read:application"
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OldAccessTokenScopeSudo OldAccessTokenScope = "sudo"
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)
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var accessTokenScopeMap = map[OldAccessTokenScope][]AccessTokenScope{
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OldAccessTokenScopeAll: {AccessTokenScopeAll},
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OldAccessTokenScopeRepo: {AccessTokenScopeWriteRepository},
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OldAccessTokenScopeRepoStatus: {AccessTokenScopeWriteRepository},
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OldAccessTokenScopePublicRepo: {AccessTokenScopePublicOnly, AccessTokenScopeWriteRepository},
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OldAccessTokenScopeAdminOrg: {AccessTokenScopeWriteOrganization},
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OldAccessTokenScopeWriteOrg: {AccessTokenScopeWriteOrganization},
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OldAccessTokenScopeReadOrg: {AccessTokenScopeReadOrganization},
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OldAccessTokenScopeAdminPublicKey: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeWritePublicKey: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeReadPublicKey: {AccessTokenScopeReadUser},
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OldAccessTokenScopeAdminRepoHook: {AccessTokenScopeWriteRepository},
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OldAccessTokenScopeWriteRepoHook: {AccessTokenScopeWriteRepository},
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OldAccessTokenScopeReadRepoHook: {AccessTokenScopeReadRepository},
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OldAccessTokenScopeAdminOrgHook: {AccessTokenScopeWriteOrganization},
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OldAccessTokenScopeNotification: {AccessTokenScopeWriteNotification},
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OldAccessTokenScopeUser: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeReadUser: {AccessTokenScopeReadUser},
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OldAccessTokenScopeUserEmail: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeUserFollow: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeDeleteRepo: {AccessTokenScopeWriteRepository},
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OldAccessTokenScopePackage: {AccessTokenScopeWritePackage},
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OldAccessTokenScopeWritePackage: {AccessTokenScopeWritePackage},
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OldAccessTokenScopeReadPackage: {AccessTokenScopeReadPackage},
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OldAccessTokenScopeDeletePackage: {AccessTokenScopeWritePackage},
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OldAccessTokenScopeAdminGPGKey: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeWriteGPGKey: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeReadGPGKey: {AccessTokenScopeReadUser},
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OldAccessTokenScopeAdminApplication: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeWriteApplication: {AccessTokenScopeWriteUser},
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OldAccessTokenScopeReadApplication: {AccessTokenScopeReadUser},
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OldAccessTokenScopeSudo: {AccessTokenScopeWriteAdmin},
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}
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type AccessToken struct {
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ID int64 `xorm:"pk autoincr"`
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Scope string
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}
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func ConvertScopedAccessTokens(x *xorm.Engine) error {
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var tokens []*AccessToken
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if err := x.Find(&tokens); err != nil {
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return err
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}
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for _, token := range tokens {
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var scopes []string
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allNewScopesMap := make(map[AccessTokenScope]bool)
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for _, oldScope := range strings.Split(token.Scope, ",") {
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if newScopes, exists := accessTokenScopeMap[OldAccessTokenScope(oldScope)]; exists {
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for _, newScope := range newScopes {
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allNewScopesMap[newScope] = true
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}
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} else {
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log.Debug("access token scope not recognized as old token scope %s; preserving it", oldScope)
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scopes = append(scopes, oldScope)
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}
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}
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for s := range allNewScopesMap {
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scopes = append(scopes, string(s))
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}
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scope := AccessTokenScope(strings.Join(scopes, ","))
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// normalize the scope
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normScope := scope.NormalizePreservingUnknown()
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token.Scope = string(normScope)
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// update the db entry with the new scope
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if _, err := x.Cols("scope").ID(token.ID).Update(token); err != nil {
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return err
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}
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}
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return nil
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}
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