mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-21 12:03:26 +02:00
## 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>
351 lines
13 KiB
Go
351 lines
13 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package auth
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
|
|
"code.gitea.io/gitea/models/perm"
|
|
)
|
|
|
|
// AccessTokenScopeCategory represents the scope category for an access token
|
|
type AccessTokenScopeCategory int
|
|
|
|
const (
|
|
AccessTokenScopeCategoryActivityPub = iota
|
|
AccessTokenScopeCategoryAdmin
|
|
AccessTokenScopeCategoryMisc
|
|
AccessTokenScopeCategoryNotification
|
|
AccessTokenScopeCategoryOrganization
|
|
AccessTokenScopeCategoryPackage
|
|
AccessTokenScopeCategoryIssue
|
|
AccessTokenScopeCategoryRepository
|
|
AccessTokenScopeCategoryUser
|
|
)
|
|
|
|
// AllAccessTokenScopeCategories contains all access token scope categories
|
|
var AllAccessTokenScopeCategories = []AccessTokenScopeCategory{
|
|
AccessTokenScopeCategoryActivityPub,
|
|
AccessTokenScopeCategoryAdmin,
|
|
AccessTokenScopeCategoryMisc,
|
|
AccessTokenScopeCategoryNotification,
|
|
AccessTokenScopeCategoryOrganization,
|
|
AccessTokenScopeCategoryPackage,
|
|
AccessTokenScopeCategoryIssue,
|
|
AccessTokenScopeCategoryRepository,
|
|
AccessTokenScopeCategoryUser,
|
|
}
|
|
|
|
// AccessTokenScopeLevel represents the access levels without a given scope category
|
|
type AccessTokenScopeLevel int
|
|
|
|
const (
|
|
NoAccess AccessTokenScopeLevel = iota
|
|
Read
|
|
Write
|
|
)
|
|
|
|
// AccessTokenScope represents the scope for an access token.
|
|
type AccessTokenScope string
|
|
|
|
// for all categories, write implies read
|
|
const (
|
|
AccessTokenScopeAll AccessTokenScope = "all"
|
|
AccessTokenScopePublicOnly AccessTokenScope = "public-only" // limited to public orgs/repos
|
|
|
|
AccessTokenScopeReadActivityPub AccessTokenScope = "read:activitypub"
|
|
AccessTokenScopeWriteActivityPub AccessTokenScope = "write:activitypub"
|
|
|
|
AccessTokenScopeReadAdmin AccessTokenScope = "read:admin"
|
|
AccessTokenScopeWriteAdmin AccessTokenScope = "write:admin"
|
|
|
|
AccessTokenScopeReadMisc AccessTokenScope = "read:misc"
|
|
AccessTokenScopeWriteMisc AccessTokenScope = "write:misc"
|
|
|
|
AccessTokenScopeReadNotification AccessTokenScope = "read:notification"
|
|
AccessTokenScopeWriteNotification AccessTokenScope = "write:notification"
|
|
|
|
AccessTokenScopeReadOrganization AccessTokenScope = "read:organization"
|
|
AccessTokenScopeWriteOrganization AccessTokenScope = "write:organization"
|
|
|
|
AccessTokenScopeReadPackage AccessTokenScope = "read:package"
|
|
AccessTokenScopeWritePackage AccessTokenScope = "write:package"
|
|
|
|
AccessTokenScopeReadIssue AccessTokenScope = "read:issue"
|
|
AccessTokenScopeWriteIssue AccessTokenScope = "write:issue"
|
|
|
|
AccessTokenScopeReadRepository AccessTokenScope = "read:repository"
|
|
AccessTokenScopeWriteRepository AccessTokenScope = "write:repository"
|
|
|
|
AccessTokenScopeReadUser AccessTokenScope = "read:user"
|
|
AccessTokenScopeWriteUser AccessTokenScope = "write:user"
|
|
)
|
|
|
|
// accessTokenScopeBitmap represents a bitmap of access token scopes.
|
|
type accessTokenScopeBitmap uint64
|
|
|
|
// Bitmap of each scope, including the child scopes.
|
|
const (
|
|
// AccessTokenScopeAllBits is the bitmap of all access token scopes
|
|
accessTokenScopeAllBits accessTokenScopeBitmap = accessTokenScopeWriteActivityPubBits |
|
|
accessTokenScopeWriteAdminBits | accessTokenScopeWriteMiscBits | accessTokenScopeWriteNotificationBits |
|
|
accessTokenScopeWriteOrganizationBits | accessTokenScopeWritePackageBits | accessTokenScopeWriteIssueBits |
|
|
accessTokenScopeWriteRepositoryBits | accessTokenScopeWriteUserBits
|
|
|
|
accessTokenScopePublicOnlyBits accessTokenScopeBitmap = 1 << iota
|
|
|
|
accessTokenScopeReadActivityPubBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteActivityPubBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadActivityPubBits
|
|
|
|
accessTokenScopeReadAdminBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteAdminBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadAdminBits
|
|
|
|
accessTokenScopeReadMiscBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteMiscBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadMiscBits
|
|
|
|
accessTokenScopeReadNotificationBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteNotificationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadNotificationBits
|
|
|
|
accessTokenScopeReadOrganizationBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteOrganizationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadOrganizationBits
|
|
|
|
accessTokenScopeReadPackageBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWritePackageBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadPackageBits
|
|
|
|
accessTokenScopeReadIssueBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteIssueBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadIssueBits
|
|
|
|
accessTokenScopeReadRepositoryBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteRepositoryBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadRepositoryBits
|
|
|
|
accessTokenScopeReadUserBits accessTokenScopeBitmap = 1 << iota
|
|
accessTokenScopeWriteUserBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadUserBits
|
|
|
|
// The current implementation only supports up to 64 token scopes.
|
|
// If we need to support > 64 scopes,
|
|
// refactoring the whole implementation in this file (and only this file) is needed.
|
|
)
|
|
|
|
// allAccessTokenScopes contains all access token scopes.
|
|
// The order is important: parent scope must precede child scopes.
|
|
var allAccessTokenScopes = []AccessTokenScope{
|
|
AccessTokenScopePublicOnly,
|
|
AccessTokenScopeWriteActivityPub, AccessTokenScopeReadActivityPub,
|
|
AccessTokenScopeWriteAdmin, AccessTokenScopeReadAdmin,
|
|
AccessTokenScopeWriteMisc, AccessTokenScopeReadMisc,
|
|
AccessTokenScopeWriteNotification, AccessTokenScopeReadNotification,
|
|
AccessTokenScopeWriteOrganization, AccessTokenScopeReadOrganization,
|
|
AccessTokenScopeWritePackage, AccessTokenScopeReadPackage,
|
|
AccessTokenScopeWriteIssue, AccessTokenScopeReadIssue,
|
|
AccessTokenScopeWriteRepository, AccessTokenScopeReadRepository,
|
|
AccessTokenScopeWriteUser, AccessTokenScopeReadUser,
|
|
}
|
|
|
|
// allAccessTokenScopeBits contains all access token scopes.
|
|
var allAccessTokenScopeBits = map[AccessTokenScope]accessTokenScopeBitmap{
|
|
AccessTokenScopeAll: accessTokenScopeAllBits,
|
|
AccessTokenScopePublicOnly: accessTokenScopePublicOnlyBits,
|
|
AccessTokenScopeReadActivityPub: accessTokenScopeReadActivityPubBits,
|
|
AccessTokenScopeWriteActivityPub: accessTokenScopeWriteActivityPubBits,
|
|
AccessTokenScopeReadAdmin: accessTokenScopeReadAdminBits,
|
|
AccessTokenScopeWriteAdmin: accessTokenScopeWriteAdminBits,
|
|
AccessTokenScopeReadMisc: accessTokenScopeReadMiscBits,
|
|
AccessTokenScopeWriteMisc: accessTokenScopeWriteMiscBits,
|
|
AccessTokenScopeReadNotification: accessTokenScopeReadNotificationBits,
|
|
AccessTokenScopeWriteNotification: accessTokenScopeWriteNotificationBits,
|
|
AccessTokenScopeReadOrganization: accessTokenScopeReadOrganizationBits,
|
|
AccessTokenScopeWriteOrganization: accessTokenScopeWriteOrganizationBits,
|
|
AccessTokenScopeReadPackage: accessTokenScopeReadPackageBits,
|
|
AccessTokenScopeWritePackage: accessTokenScopeWritePackageBits,
|
|
AccessTokenScopeReadIssue: accessTokenScopeReadIssueBits,
|
|
AccessTokenScopeWriteIssue: accessTokenScopeWriteIssueBits,
|
|
AccessTokenScopeReadRepository: accessTokenScopeReadRepositoryBits,
|
|
AccessTokenScopeWriteRepository: accessTokenScopeWriteRepositoryBits,
|
|
AccessTokenScopeReadUser: accessTokenScopeReadUserBits,
|
|
AccessTokenScopeWriteUser: accessTokenScopeWriteUserBits,
|
|
}
|
|
|
|
// readAccessTokenScopes maps a scope category to the read permission scope
|
|
var accessTokenScopes = map[AccessTokenScopeLevel]map[AccessTokenScopeCategory]AccessTokenScope{
|
|
Read: {
|
|
AccessTokenScopeCategoryActivityPub: AccessTokenScopeReadActivityPub,
|
|
AccessTokenScopeCategoryAdmin: AccessTokenScopeReadAdmin,
|
|
AccessTokenScopeCategoryMisc: AccessTokenScopeReadMisc,
|
|
AccessTokenScopeCategoryNotification: AccessTokenScopeReadNotification,
|
|
AccessTokenScopeCategoryOrganization: AccessTokenScopeReadOrganization,
|
|
AccessTokenScopeCategoryPackage: AccessTokenScopeReadPackage,
|
|
AccessTokenScopeCategoryIssue: AccessTokenScopeReadIssue,
|
|
AccessTokenScopeCategoryRepository: AccessTokenScopeReadRepository,
|
|
AccessTokenScopeCategoryUser: AccessTokenScopeReadUser,
|
|
},
|
|
Write: {
|
|
AccessTokenScopeCategoryActivityPub: AccessTokenScopeWriteActivityPub,
|
|
AccessTokenScopeCategoryAdmin: AccessTokenScopeWriteAdmin,
|
|
AccessTokenScopeCategoryMisc: AccessTokenScopeWriteMisc,
|
|
AccessTokenScopeCategoryNotification: AccessTokenScopeWriteNotification,
|
|
AccessTokenScopeCategoryOrganization: AccessTokenScopeWriteOrganization,
|
|
AccessTokenScopeCategoryPackage: AccessTokenScopeWritePackage,
|
|
AccessTokenScopeCategoryIssue: AccessTokenScopeWriteIssue,
|
|
AccessTokenScopeCategoryRepository: AccessTokenScopeWriteRepository,
|
|
AccessTokenScopeCategoryUser: AccessTokenScopeWriteUser,
|
|
},
|
|
}
|
|
|
|
// GetRequiredScopes gets the specific scopes for a given level and categories
|
|
func GetRequiredScopes(level AccessTokenScopeLevel, scopeCategories ...AccessTokenScopeCategory) []AccessTokenScope {
|
|
scopes := make([]AccessTokenScope, 0, len(scopeCategories))
|
|
for _, cat := range scopeCategories {
|
|
scopes = append(scopes, accessTokenScopes[level][cat])
|
|
}
|
|
return scopes
|
|
}
|
|
|
|
// ContainsCategory checks if a list of categories contains a specific category
|
|
func ContainsCategory(categories []AccessTokenScopeCategory, category AccessTokenScopeCategory) bool {
|
|
for _, c := range categories {
|
|
if c == category {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// GetScopeLevelFromAccessMode converts permission access mode to scope level
|
|
func GetScopeLevelFromAccessMode(mode perm.AccessMode) AccessTokenScopeLevel {
|
|
switch mode {
|
|
case perm.AccessModeNone:
|
|
return NoAccess
|
|
case perm.AccessModeRead:
|
|
return Read
|
|
case perm.AccessModeWrite:
|
|
return Write
|
|
case perm.AccessModeAdmin:
|
|
return Write
|
|
case perm.AccessModeOwner:
|
|
return Write
|
|
default:
|
|
return NoAccess
|
|
}
|
|
}
|
|
|
|
// parse the scope string into a bitmap, thus removing possible duplicates.
|
|
func (s AccessTokenScope) parse() (accessTokenScopeBitmap, error) {
|
|
var bitmap accessTokenScopeBitmap
|
|
|
|
// The following is the more performant equivalent of 'for _, v := range strings.Split(remainingScope, ",")' as this is hot code
|
|
remainingScopes := string(s)
|
|
for len(remainingScopes) > 0 {
|
|
i := strings.IndexByte(remainingScopes, ',')
|
|
var v string
|
|
if i < 0 {
|
|
v = remainingScopes
|
|
remainingScopes = ""
|
|
} else if i+1 >= len(remainingScopes) {
|
|
v = remainingScopes[:i]
|
|
remainingScopes = ""
|
|
} else {
|
|
v = remainingScopes[:i]
|
|
remainingScopes = remainingScopes[i+1:]
|
|
}
|
|
singleScope := AccessTokenScope(v)
|
|
if singleScope == "" {
|
|
continue
|
|
}
|
|
if singleScope == AccessTokenScopeAll {
|
|
bitmap |= accessTokenScopeAllBits
|
|
continue
|
|
}
|
|
|
|
bits, ok := allAccessTokenScopeBits[singleScope]
|
|
if !ok {
|
|
return 0, fmt.Errorf("invalid access token scope: %s", singleScope)
|
|
}
|
|
bitmap |= bits
|
|
}
|
|
|
|
return bitmap, nil
|
|
}
|
|
|
|
// StringSlice returns the AccessTokenScope as a []string
|
|
func (s AccessTokenScope) StringSlice() []string {
|
|
return strings.Split(string(s), ",")
|
|
}
|
|
|
|
// Normalize returns a normalized scope string without any duplicates.
|
|
func (s AccessTokenScope) Normalize() (AccessTokenScope, error) {
|
|
bitmap, err := s.parse()
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
|
|
return bitmap.toScope(), nil
|
|
}
|
|
|
|
// PublicOnly checks if this token scope is limited to public resources
|
|
func (s AccessTokenScope) PublicOnly() (bool, error) {
|
|
bitmap, err := s.parse()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
return bitmap.hasScope(AccessTokenScopePublicOnly)
|
|
}
|
|
|
|
// HasScope returns true if the string has the given scope
|
|
func (s AccessTokenScope) HasScope(scopes ...AccessTokenScope) (bool, error) {
|
|
bitmap, err := s.parse()
|
|
if err != nil {
|
|
return false, err
|
|
}
|
|
|
|
for _, s := range scopes {
|
|
if has, err := bitmap.hasScope(s); !has || err != nil {
|
|
return has, err
|
|
}
|
|
}
|
|
|
|
return true, nil
|
|
}
|
|
|
|
// hasScope returns true if the string has the given scope
|
|
func (bitmap accessTokenScopeBitmap) hasScope(scope AccessTokenScope) (bool, error) {
|
|
expectedBits, ok := allAccessTokenScopeBits[scope]
|
|
if !ok {
|
|
return false, fmt.Errorf("invalid access token scope: %s", scope)
|
|
}
|
|
|
|
return bitmap&expectedBits == expectedBits, nil
|
|
}
|
|
|
|
// toScope returns a normalized scope string without any duplicates.
|
|
func (bitmap accessTokenScopeBitmap) toScope() AccessTokenScope {
|
|
var scopes []string
|
|
|
|
// iterate over all scopes, and reconstruct the bitmap
|
|
// if the reconstructed bitmap doesn't change, then the scope is already included
|
|
var reconstruct accessTokenScopeBitmap
|
|
|
|
for _, singleScope := range allAccessTokenScopes {
|
|
// no need for error checking here, since we know the scope is valid
|
|
if ok, _ := bitmap.hasScope(singleScope); ok {
|
|
current := reconstruct | allAccessTokenScopeBits[singleScope]
|
|
if current == reconstruct {
|
|
continue
|
|
}
|
|
|
|
reconstruct = current
|
|
scopes = append(scopes, string(singleScope))
|
|
}
|
|
}
|
|
|
|
scope := AccessTokenScope(strings.Join(scopes, ","))
|
|
scope = AccessTokenScope(strings.ReplaceAll(
|
|
string(scope),
|
|
"write:activitypub,write:admin,write:misc,write:notification,write:organization,write:package,write:issue,write:repository,write:user",
|
|
"all",
|
|
))
|
|
return scope
|
|
}
|