mirror of https://github.com/go-gitea/gitea.git
271 lines
12 KiB
Go
271 lines
12 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package auth
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import (
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"fmt"
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"strings"
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)
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// AccessTokenScope represents the scope for an access token.
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type AccessTokenScope string
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const (
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AccessTokenScopeAll AccessTokenScope = "all"
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AccessTokenScopeRepo AccessTokenScope = "repo"
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AccessTokenScopeRepoStatus AccessTokenScope = "repo:status"
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AccessTokenScopePublicRepo AccessTokenScope = "public_repo"
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AccessTokenScopeAdminOrg AccessTokenScope = "admin:org"
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AccessTokenScopeWriteOrg AccessTokenScope = "write:org"
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AccessTokenScopeReadOrg AccessTokenScope = "read:org"
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AccessTokenScopeAdminPublicKey AccessTokenScope = "admin:public_key"
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AccessTokenScopeWritePublicKey AccessTokenScope = "write:public_key"
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AccessTokenScopeReadPublicKey AccessTokenScope = "read:public_key"
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AccessTokenScopeAdminRepoHook AccessTokenScope = "admin:repo_hook"
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AccessTokenScopeWriteRepoHook AccessTokenScope = "write:repo_hook"
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AccessTokenScopeReadRepoHook AccessTokenScope = "read:repo_hook"
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AccessTokenScopeAdminOrgHook AccessTokenScope = "admin:org_hook"
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AccessTokenScopeNotification AccessTokenScope = "notification"
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AccessTokenScopeUser AccessTokenScope = "user"
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AccessTokenScopeReadUser AccessTokenScope = "read:user"
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AccessTokenScopeUserEmail AccessTokenScope = "user:email"
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AccessTokenScopeUserFollow AccessTokenScope = "user:follow"
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AccessTokenScopeDeleteRepo AccessTokenScope = "delete_repo"
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AccessTokenScopePackage AccessTokenScope = "package"
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AccessTokenScopeWritePackage AccessTokenScope = "write:package"
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AccessTokenScopeReadPackage AccessTokenScope = "read:package"
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AccessTokenScopeDeletePackage AccessTokenScope = "delete:package"
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AccessTokenScopeAdminGPGKey AccessTokenScope = "admin:gpg_key"
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AccessTokenScopeWriteGPGKey AccessTokenScope = "write:gpg_key"
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AccessTokenScopeReadGPGKey AccessTokenScope = "read:gpg_key"
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AccessTokenScopeAdminApplication AccessTokenScope = "admin:application"
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AccessTokenScopeWriteApplication AccessTokenScope = "write:application"
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AccessTokenScopeReadApplication AccessTokenScope = "read:application"
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AccessTokenScopeSudo AccessTokenScope = "sudo"
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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, except `sudo`.
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AccessTokenScopeAllBits AccessTokenScopeBitmap = AccessTokenScopeRepoBits |
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AccessTokenScopeAdminOrgBits | AccessTokenScopeAdminPublicKeyBits | AccessTokenScopeAdminOrgHookBits |
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AccessTokenScopeNotificationBits | AccessTokenScopeUserBits | AccessTokenScopeDeleteRepoBits |
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AccessTokenScopePackageBits | AccessTokenScopeAdminGPGKeyBits | AccessTokenScopeAdminApplicationBits
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AccessTokenScopeRepoBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeRepoStatusBits | AccessTokenScopePublicRepoBits | AccessTokenScopeAdminRepoHookBits
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AccessTokenScopeRepoStatusBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopePublicRepoBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeAdminOrgBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeWriteOrgBits
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AccessTokenScopeWriteOrgBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeReadOrgBits
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AccessTokenScopeReadOrgBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeAdminPublicKeyBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeWritePublicKeyBits
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AccessTokenScopeWritePublicKeyBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeReadPublicKeyBits
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AccessTokenScopeReadPublicKeyBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeAdminRepoHookBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeWriteRepoHookBits
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AccessTokenScopeWriteRepoHookBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeReadRepoHookBits
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AccessTokenScopeReadRepoHookBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeAdminOrgHookBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeNotificationBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeUserBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeReadUserBits | AccessTokenScopeUserEmailBits | AccessTokenScopeUserFollowBits
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AccessTokenScopeReadUserBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeUserEmailBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeUserFollowBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeDeleteRepoBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopePackageBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeWritePackageBits | AccessTokenScopeDeletePackageBits
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AccessTokenScopeWritePackageBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeReadPackageBits
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AccessTokenScopeReadPackageBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeDeletePackageBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeAdminGPGKeyBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeWriteGPGKeyBits
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AccessTokenScopeWriteGPGKeyBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeReadGPGKeyBits
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AccessTokenScopeReadGPGKeyBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeAdminApplicationBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeWriteApplicationBits
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AccessTokenScopeWriteApplicationBits AccessTokenScopeBitmap = 1<<iota | AccessTokenScopeReadApplicationBits
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AccessTokenScopeReadApplicationBits AccessTokenScopeBitmap = 1 << iota
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AccessTokenScopeSudoBits AccessTokenScopeBitmap = 1 << iota
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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 precedes child scopes.
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var allAccessTokenScopes = []AccessTokenScope{
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AccessTokenScopeRepo, AccessTokenScopeRepoStatus, AccessTokenScopePublicRepo,
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AccessTokenScopeAdminOrg, AccessTokenScopeWriteOrg, AccessTokenScopeReadOrg,
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AccessTokenScopeAdminPublicKey, AccessTokenScopeWritePublicKey, AccessTokenScopeReadPublicKey,
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AccessTokenScopeAdminRepoHook, AccessTokenScopeWriteRepoHook, AccessTokenScopeReadRepoHook,
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AccessTokenScopeAdminOrgHook,
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AccessTokenScopeNotification,
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AccessTokenScopeUser, AccessTokenScopeReadUser, AccessTokenScopeUserEmail, AccessTokenScopeUserFollow,
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AccessTokenScopeDeleteRepo,
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AccessTokenScopePackage, AccessTokenScopeWritePackage, AccessTokenScopeReadPackage, AccessTokenScopeDeletePackage,
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AccessTokenScopeAdminGPGKey, AccessTokenScopeWriteGPGKey, AccessTokenScopeReadGPGKey,
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AccessTokenScopeAdminApplication, AccessTokenScopeWriteApplication, AccessTokenScopeReadApplication,
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AccessTokenScopeSudo,
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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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AccessTokenScopeRepo: AccessTokenScopeRepoBits,
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AccessTokenScopeRepoStatus: AccessTokenScopeRepoStatusBits,
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AccessTokenScopePublicRepo: AccessTokenScopePublicRepoBits,
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AccessTokenScopeAdminOrg: AccessTokenScopeAdminOrgBits,
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AccessTokenScopeWriteOrg: AccessTokenScopeWriteOrgBits,
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AccessTokenScopeReadOrg: AccessTokenScopeReadOrgBits,
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AccessTokenScopeAdminPublicKey: AccessTokenScopeAdminPublicKeyBits,
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AccessTokenScopeWritePublicKey: AccessTokenScopeWritePublicKeyBits,
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AccessTokenScopeReadPublicKey: AccessTokenScopeReadPublicKeyBits,
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AccessTokenScopeAdminRepoHook: AccessTokenScopeAdminRepoHookBits,
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AccessTokenScopeWriteRepoHook: AccessTokenScopeWriteRepoHookBits,
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AccessTokenScopeReadRepoHook: AccessTokenScopeReadRepoHookBits,
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AccessTokenScopeAdminOrgHook: AccessTokenScopeAdminOrgHookBits,
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AccessTokenScopeNotification: AccessTokenScopeNotificationBits,
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AccessTokenScopeUser: AccessTokenScopeUserBits,
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AccessTokenScopeReadUser: AccessTokenScopeReadUserBits,
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AccessTokenScopeUserEmail: AccessTokenScopeUserEmailBits,
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AccessTokenScopeUserFollow: AccessTokenScopeUserFollowBits,
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AccessTokenScopeDeleteRepo: AccessTokenScopeDeleteRepoBits,
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AccessTokenScopePackage: AccessTokenScopePackageBits,
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AccessTokenScopeWritePackage: AccessTokenScopeWritePackageBits,
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AccessTokenScopeReadPackage: AccessTokenScopeReadPackageBits,
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AccessTokenScopeDeletePackage: AccessTokenScopeDeletePackageBits,
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AccessTokenScopeAdminGPGKey: AccessTokenScopeAdminGPGKeyBits,
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AccessTokenScopeWriteGPGKey: AccessTokenScopeWriteGPGKeyBits,
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AccessTokenScopeReadGPGKey: AccessTokenScopeReadGPGKeyBits,
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AccessTokenScopeAdminApplication: AccessTokenScopeAdminApplicationBits,
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AccessTokenScopeWriteApplication: AccessTokenScopeWriteApplicationBits,
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AccessTokenScopeReadApplication: AccessTokenScopeReadApplicationBits,
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AccessTokenScopeSudo: AccessTokenScopeSudoBits,
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}
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// Parse parses the scope string into a bitmap, thus removing possible duplicates.
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func (s AccessTokenScope) Parse() (AccessTokenScopeBitmap, error) {
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var bitmap AccessTokenScopeBitmap
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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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return 0, fmt.Errorf("invalid access token scope: %s", singleScope)
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}
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bitmap |= bits
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}
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return bitmap, nil
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}
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// StringSlice returns the AccessTokenScope as a []string
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func (s AccessTokenScope) StringSlice() []string {
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return strings.Split(string(s), ",")
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}
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// Normalize returns a normalized scope string without any duplicates.
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func (s AccessTokenScope) Normalize() (AccessTokenScope, error) {
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bitmap, err := s.Parse()
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if err != nil {
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return "", err
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}
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return bitmap.ToScope(), nil
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}
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// HasScope returns true if the string has the given scope
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func (s AccessTokenScope) HasScope(scope AccessTokenScope) (bool, error) {
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bitmap, err := s.Parse()
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if err != nil {
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return false, err
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}
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return bitmap.HasScope(scope)
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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() AccessTokenScope {
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var scopes []string
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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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"repo,admin:org,admin:public_key,admin:org_hook,notification,user,delete_repo,package,admin:gpg_key,admin:application",
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"all",
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))
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return scope
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}
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