361 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			361 lines
		
	
	
		
			15 KiB
		
	
	
	
		
			Go
		
	
	
	
| // Copyright 2023 The Gitea Authors. All rights reserved.
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| // SPDX-License-Identifier: MIT
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| 
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| package v1_20 //nolint
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| 
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| import (
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| 	"fmt"
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| 	"strings"
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| 
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| 	"code.gitea.io/gitea/modules/log"
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| 
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| 	"xorm.io/xorm"
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| )
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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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| 
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| // AccessTokenScope represents the scope for an access token.
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| type AccessTokenScope string
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| 
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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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| 
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| 	AccessTokenScopeReadActivityPub  AccessTokenScope = "read:activitypub"
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| 	AccessTokenScopeWriteActivityPub AccessTokenScope = "write:activitypub"
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| 
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| 	AccessTokenScopeReadAdmin  AccessTokenScope = "read:admin"
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| 	AccessTokenScopeWriteAdmin AccessTokenScope = "write:admin"
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| 
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| 	AccessTokenScopeReadMisc  AccessTokenScope = "read:misc"
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| 	AccessTokenScopeWriteMisc AccessTokenScope = "write:misc"
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| 
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| 	AccessTokenScopeReadNotification  AccessTokenScope = "read:notification"
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| 	AccessTokenScopeWriteNotification AccessTokenScope = "write:notification"
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| 
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| 	AccessTokenScopeReadOrganization  AccessTokenScope = "read:organization"
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| 	AccessTokenScopeWriteOrganization AccessTokenScope = "write:organization"
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| 
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| 	AccessTokenScopeReadPackage  AccessTokenScope = "read:package"
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| 	AccessTokenScopeWritePackage AccessTokenScope = "write:package"
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| 
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| 	AccessTokenScopeReadIssue  AccessTokenScope = "read:issue"
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| 	AccessTokenScopeWriteIssue AccessTokenScope = "write:issue"
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| 
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| 	AccessTokenScopeReadRepository  AccessTokenScope = "read:repository"
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| 	AccessTokenScopeWriteRepository AccessTokenScope = "write:repository"
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| 
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| 	AccessTokenScopeReadUser  AccessTokenScope = "read:user"
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| 	AccessTokenScopeWriteUser AccessTokenScope = "write:user"
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| )
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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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| 
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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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| 
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| 	accessTokenScopePublicOnlyBits accessTokenScopeBitmap = 1 << iota
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| 
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| 	accessTokenScopeReadActivityPubBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteActivityPubBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadActivityPubBits
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| 
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| 	accessTokenScopeReadAdminBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteAdminBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadAdminBits
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| 
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| 	accessTokenScopeReadMiscBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteMiscBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadMiscBits
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| 
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| 	accessTokenScopeReadNotificationBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteNotificationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadNotificationBits
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| 
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| 	accessTokenScopeReadOrganizationBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteOrganizationBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadOrganizationBits
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| 
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| 	accessTokenScopeReadPackageBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWritePackageBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadPackageBits
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| 
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| 	accessTokenScopeReadIssueBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteIssueBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadIssueBits
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| 
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| 	accessTokenScopeReadRepositoryBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteRepositoryBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadRepositoryBits
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| 
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| 	accessTokenScopeReadUserBits  accessTokenScopeBitmap = 1 << iota
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| 	accessTokenScopeWriteUserBits accessTokenScopeBitmap = 1<<iota | accessTokenScopeReadUserBits
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| 	return bitmap&expectedBits == expectedBits, nil
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| }
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| 	return bitmap, &unknownScopes
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| }
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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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| 
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| 	return bitmap.toScope(unknownScopes)
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| }
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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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| 
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| const (
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| 	OldAccessTokenScopeAll OldAccessTokenScope = "all"
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| 
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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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| 
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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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| 
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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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| 
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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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| 
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| 	OldAccessTokenScopeAdminOrgHook OldAccessTokenScope = "admin:org_hook"
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| 
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| 	OldAccessTokenScopeNotification OldAccessTokenScope = "notification"
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| 
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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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| 
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| 	OldAccessTokenScopeDeleteRepo OldAccessTokenScope = "delete_repo"
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| 
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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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| 
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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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| 
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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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| 
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| 	OldAccessTokenScopeSudo OldAccessTokenScope = "sudo"
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| )
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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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| 
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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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| 
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| func ConvertScopedAccessTokens(x *xorm.Engine) error {
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| 	var tokens []*AccessToken
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| 
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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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| 
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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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| 
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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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| 
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| 		// normalize the scope
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| 		normScope := scope.NormalizePreservingUnknown()
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| 
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| 		token.Scope = string(normScope)
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| 
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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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| 
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| 	return nil
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| }
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