Adding upstream version 0.28.1.

Signed-off-by: Daniel Baumann <daniel@debian.org>

apis/record_crud.go

@@ -0,0 +1,742 @@
+package apis
+
+import (
+	cryptoRand "crypto/rand"
+	"errors"
+	"fmt"
+	"math/big"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/pocketbase/dbx"
+	"github.com/pocketbase/pocketbase/core"
+	"github.com/pocketbase/pocketbase/forms"
+	"github.com/pocketbase/pocketbase/tools/filesystem"
+	"github.com/pocketbase/pocketbase/tools/inflector"
+	"github.com/pocketbase/pocketbase/tools/list"
+	"github.com/pocketbase/pocketbase/tools/router"
+	"github.com/pocketbase/pocketbase/tools/search"
+	"github.com/pocketbase/pocketbase/tools/security"
+)
+
+// bindRecordCrudApi registers the record crud api endpoints and
+// the corresponding handlers.
+//
+// note: the rate limiter is "inlined" because some of the crud actions are also used in the batch APIs
+func bindRecordCrudApi(app core.App, rg *router.RouterGroup[*core.RequestEvent]) {
+	subGroup := rg.Group("/collections/{collection}/records").Unbind(DefaultRateLimitMiddlewareId)
+	subGroup.GET("", recordsList)
+	subGroup.GET("/{id}", recordView)
+	subGroup.POST("", recordCreate(true, nil)).Bind(dynamicCollectionBodyLimit(""))
+	subGroup.PATCH("/{id}", recordUpdate(true, nil)).Bind(dynamicCollectionBodyLimit(""))
+	subGroup.DELETE("/{id}", recordDelete(true, nil))
+}
+
+func recordsList(e *core.RequestEvent) error {
+	collection, err := e.App.FindCachedCollectionByNameOrId(e.Request.PathValue("collection"))
+	if err != nil || collection == nil {
+		return e.NotFoundError("Missing collection context.", err)
+	}
+
+	err = checkCollectionRateLimit(e, collection, "list")
+	if err != nil {
+		return err
+	}
+
+	requestInfo, err := e.RequestInfo()
+	if err != nil {
+		return firstApiError(err, e.BadRequestError("", err))
+	}
+
+	if collection.ListRule == nil && !requestInfo.HasSuperuserAuth() {
+		return e.ForbiddenError("Only superusers can perform this action.", nil)
+	}
+
+	// forbid users and guests to query special filter/sort fields
+	err = checkForSuperuserOnlyRuleFields(requestInfo)
+	if err != nil {
+		return err
+	}
+
+	query := e.App.RecordQuery(collection)
+
+	fieldsResolver := core.NewRecordFieldResolver(e.App, collection, requestInfo, true)
+
+	if !requestInfo.HasSuperuserAuth() && collection.ListRule != nil && *collection.ListRule != "" {
+		expr, err := search.FilterData(*collection.ListRule).BuildExpr(fieldsResolver)
+		if err != nil {
+			return err
+		}
+		query.AndWhere(expr)
+
+		// will be applied by the search provider right before executing the query
+		// fieldsResolver.UpdateQuery(query)
+	}
+
+	// hidden fields are searchable only by superusers
+	fieldsResolver.SetAllowHiddenFields(requestInfo.HasSuperuserAuth())
+
+	searchProvider := search.NewProvider(fieldsResolver).Query(query)
+
+	// use rowid when available to minimize the need of a covering index with the "id" field
+	if !collection.IsView() {
+		searchProvider.CountCol("_rowid_")
+	}
+
+	records := []*core.Record{}
+	result, err := searchProvider.ParseAndExec(e.Request.URL.Query().Encode(), &records)
+	if err != nil {
+		return firstApiError(err, e.BadRequestError("", err))
+	}
+
+	event := new(core.RecordsListRequestEvent)
+	event.RequestEvent = e
+	event.Collection = collection
+	event.Records = records
+	event.Result = result
+
+	return e.App.OnRecordsListRequest().Trigger(event, func(e *core.RecordsListRequestEvent) error {
+		if err := EnrichRecords(e.RequestEvent, e.Records); err != nil {
+			return firstApiError(err, e.InternalServerError("Failed to enrich records", err))
+		}
+
+		// Add a randomized throttle in case of too many empty search filter attempts.
+		//
+		// This is just for extra precaution since security researches raised concern regarding the possibility of eventual
+		// timing attacks because the List API rule acts also as filter and executes in a single run with the client-side filters.
+		// This is by design and it is an accepted trade off between performance, usability and correctness.
+		//
+		// While technically the below doesn't fully guarantee protection against filter timing attacks, in practice combined with the network latency it makes them even less feasible.
+		// A properly configured rate limiter or individual fields Hidden checks are better suited if you are really concerned about eventual information disclosure by side-channel attacks.
+		//
+		// In all cases it doesn't really matter that much because it doesn't affect the builtin PocketBase security sensitive fields (e.g. password and tokenKey) since they
+		// are not client-side filterable and in the few places where they need to be compared against an external value, a constant time check is used.
+		if !e.HasSuperuserAuth() &&
+			(collection.ListRule != nil && *collection.ListRule != "") &&
+			(requestInfo.Query["filter"] != "") &&
+			len(e.Records) == 0 &&
+			checkRateLimit(e.RequestEvent, "@pb_list_timing_check_"+collection.Id, listTimingRateLimitRule) != nil {
+			e.App.Logger().Debug("Randomized throttle because of too many failed searches", "collectionId", collection.Id)
+			randomizedThrottle(150)
+		}
+
+		return execAfterSuccessTx(true, e.App, func() error {
+			return e.JSON(http.StatusOK, e.Result)
+		})
+	})
+}
+
+var listTimingRateLimitRule = core.RateLimitRule{MaxRequests: 3, Duration: 3}
+
+func randomizedThrottle(softMax int64) {
+	var timeout int64
+	randRange, err := cryptoRand.Int(cryptoRand.Reader, big.NewInt(softMax))
+	if err == nil {
+		timeout = randRange.Int64()
+	} else {
+		timeout = softMax
+	}
+
+	time.Sleep(time.Duration(timeout) * time.Millisecond)
+}
+
+func recordView(e *core.RequestEvent) error {
+	collection, err := e.App.FindCachedCollectionByNameOrId(e.Request.PathValue("collection"))
+	if err != nil || collection == nil {
+		return e.NotFoundError("Missing collection context.", err)
+	}
+
+	err = checkCollectionRateLimit(e, collection, "view")
+	if err != nil {
+		return err
+	}
+
+	recordId := e.Request.PathValue("id")
+	if recordId == "" {
+		return e.NotFoundError("", nil)
+	}
+
+	requestInfo, err := e.RequestInfo()
+	if err != nil {
+		return firstApiError(err, e.BadRequestError("", err))
+	}
+
+	if collection.ViewRule == nil && !requestInfo.HasSuperuserAuth() {
+		return e.ForbiddenError("Only superusers can perform this action.", nil)
+	}
+
+	ruleFunc := func(q *dbx.SelectQuery) error {
+		if !requestInfo.HasSuperuserAuth() && collection.ViewRule != nil && *collection.ViewRule != "" {
+			resolver := core.NewRecordFieldResolver(e.App, collection, requestInfo, true)
+			expr, err := search.FilterData(*collection.ViewRule).BuildExpr(resolver)
+			if err != nil {
+				return err
+			}
+			resolver.UpdateQuery(q)
+			q.AndWhere(expr)
+		}
+		return nil
+	}
+
+	record, fetchErr := e.App.FindRecordById(collection, recordId, ruleFunc)
+	if fetchErr != nil || record == nil {
+		return firstApiError(err, e.NotFoundError("", fetchErr))
+	}
+
+	event := new(core.RecordRequestEvent)
+	event.RequestEvent = e
+	event.Collection = collection
+	event.Record = record
+
+	return e.App.OnRecordViewRequest().Trigger(event, func(e *core.RecordRequestEvent) error {
+		if err := EnrichRecord(e.RequestEvent, e.Record); err != nil {
+			return firstApiError(err, e.InternalServerError("Failed to enrich record", err))
+		}
+
+		return execAfterSuccessTx(true, e.App, func() error {
+			return e.JSON(http.StatusOK, e.Record)
+		})
+	})
+}
+
+func recordCreate(responseWriteAfterTx bool, optFinalizer func(data any) error) func(e *core.RequestEvent) error {
+	return func(e *core.RequestEvent) error {
+		collection, err := e.App.FindCachedCollectionByNameOrId(e.Request.PathValue("collection"))
+		if err != nil || collection == nil {
+			return e.NotFoundError("Missing collection context.", err)
+		}
+
+		if collection.IsView() {
+			return e.BadRequestError("Unsupported collection type.", nil)
+		}
+
+		err = checkCollectionRateLimit(e, collection, "create")
+		if err != nil {
+			return err
+		}
+
+		requestInfo, err := e.RequestInfo()
+		if err != nil {
+			return firstApiError(err, e.BadRequestError("", err))
+		}
+
+		hasSuperuserAuth := requestInfo.HasSuperuserAuth()
+		if !hasSuperuserAuth && collection.CreateRule == nil {
+			return e.ForbiddenError("Only superusers can perform this action.", nil)
+		}
+
+		record := core.NewRecord(collection)
+
+		data, err := recordDataFromRequest(e, record)
+		if err != nil {
+			return firstApiError(err, e.BadRequestError("Failed to read the submitted data.", err))
+		}
+
+		// set a random password for the OAuth2 ignoring its plain password validators
+		var skipPlainPasswordRecordValidators bool
+		if requestInfo.Context == core.RequestInfoContextOAuth2 {
+			if _, ok := data[core.FieldNamePassword]; !ok {
+				data[core.FieldNamePassword] = security.RandomString(30)
+				data[core.FieldNamePassword+"Confirm"] = data[core.FieldNamePassword]
+				skipPlainPasswordRecordValidators = true
+			}
+		}
+
+		// replace modifiers fields so that the resolved value is always
+		// available when accessing requestInfo.Body
+		requestInfo.Body = data
+
+		form := forms.NewRecordUpsert(e.App, record)
+		if hasSuperuserAuth {
+			form.GrantSuperuserAccess()
+		}
+		form.Load(data)
+
+		if skipPlainPasswordRecordValidators {
+			// unset the plain value to skip the plain password field validators
+			if raw, ok := record.GetRaw(core.FieldNamePassword).(*core.PasswordFieldValue); ok {
+				raw.Plain = ""
+			}
+		}
+
+		// check the request and record data against the create and manage rules
+		if !hasSuperuserAuth && collection.CreateRule != nil {
+			dummyRecord := record.Clone()
+
+			dummyRandomPart := "__pb_create__" + security.PseudorandomString(6)
+
+			// set an id if it doesn't have already
+			// (the value doesn't matter; it is used only to minimize the breaking changes with earlier versions)
+			if dummyRecord.Id == "" {
+				dummyRecord.Id = "__temp_id__" + dummyRandomPart
+			}
+
+			// unset the verified field to prevent manage API rule misuse in case the rule relies on it
+			dummyRecord.SetVerified(false)
+
+			// export the dummy record data into db params
+			dummyExport, err := dummyRecord.DBExport(e.App)
+			if err != nil {
+				return e.BadRequestError("Failed to create record", fmt.Errorf("dummy DBExport error: %w", err))
+			}
+
+			dummyParams := make(dbx.Params, len(dummyExport))
+			selects := make([]string, 0, len(dummyExport))
+			var param string
+			for k, v := range dummyExport {
+				k = inflector.Columnify(k) // columnify is just as extra measure in case of custom fields
+				param = "__pb_create__" + k
+				dummyParams[param] = v
+				selects = append(selects, "{:"+param+"} AS [["+k+"]]")
+			}
+
+			// shallow clone the current collection
+			dummyCollection := *collection
+			dummyCollection.Id += dummyRandomPart
+			dummyCollection.Name += inflector.Columnify(dummyRandomPart)
+
+			withFrom := fmt.Sprintf("WITH {{%s}} as (SELECT %s)", dummyCollection.Name, strings.Join(selects, ","))
+
+			// check non-empty create rule
+			if *dummyCollection.CreateRule != "" {
+				ruleQuery := e.App.ConcurrentDB().Select("(1)").PreFragment(withFrom).From(dummyCollection.Name).AndBind(dummyParams)
+
+				resolver := core.NewRecordFieldResolver(e.App, &dummyCollection, requestInfo, true)
+
+				expr, err := search.FilterData(*dummyCollection.CreateRule).BuildExpr(resolver)
+				if err != nil {
+					return e.BadRequestError("Failed to create record", fmt.Errorf("create rule build expression failure: %w", err))
+				}
+				ruleQuery.AndWhere(expr)
+
+				resolver.UpdateQuery(ruleQuery)
+
+				var exists int
+				err = ruleQuery.Limit(1).Row(&exists)
+				if err != nil || exists == 0 {
+					return e.BadRequestError("Failed to create record", fmt.Errorf("create rule failure: %w", err))
+				}
+			}
+
+			// check for manage rule access
+			manageRuleQuery := e.App.ConcurrentDB().Select("(1)").PreFragment(withFrom).From(dummyCollection.Name).AndBind(dummyParams)
+			if !form.HasManageAccess() &&
+				hasAuthManageAccess(e.App, requestInfo, &dummyCollection, manageRuleQuery) {
+				form.GrantManagerAccess()
+			}
+		}
+
+		var isOptFinalizerCalled bool
+
+		event := new(core.RecordRequestEvent)
+		event.RequestEvent = e
+		event.Collection = collection
+		event.Record = record
+
+		hookErr := e.App.OnRecordCreateRequest().Trigger(event, func(e *core.RecordRequestEvent) error {
+			form.SetApp(e.App)
+			form.SetRecord(e.Record)
+
+			err := form.Submit()
+			if err != nil {
+				return firstApiError(err, e.BadRequestError("Failed to create record", err))
+			}
+
+			err = EnrichRecord(e.RequestEvent, e.Record)
+			if err != nil {
+				return firstApiError(err, e.InternalServerError("Failed to enrich record", err))
+			}
+
+			err = execAfterSuccessTx(responseWriteAfterTx, e.App, func() error {
+				return e.JSON(http.StatusOK, e.Record)
+			})
+			if err != nil {
+				return err
+			}
+
+			if optFinalizer != nil {
+				isOptFinalizerCalled = true
+				err = optFinalizer(e.Record)
+				if err != nil {
+					return firstApiError(err, e.InternalServerError("", err))
+				}
+			}
+
+			return nil
+		})
+		if hookErr != nil {
+			return hookErr
+		}
+
+		// e.g. in case the regular hook chain was stopped and the finalizer cannot be executed as part of the last e.Next() task
+		if !isOptFinalizerCalled && optFinalizer != nil {
+			if err := optFinalizer(event.Record); err != nil {
+				return firstApiError(err, e.InternalServerError("", err))
+			}
+		}
+
+		return nil
+	}
+}
+
+func recordUpdate(responseWriteAfterTx bool, optFinalizer func(data any) error) func(e *core.RequestEvent) error {
+	return func(e *core.RequestEvent) error {
+		collection, err := e.App.FindCachedCollectionByNameOrId(e.Request.PathValue("collection"))
+		if err != nil || collection == nil {
+			return e.NotFoundError("Missing collection context.", err)
+		}
+
+		if collection.IsView() {
+			return e.BadRequestError("Unsupported collection type.", nil)
+		}
+
+		err = checkCollectionRateLimit(e, collection, "update")
+		if err != nil {
+			return err
+		}
+
+		recordId := e.Request.PathValue("id")
+		if recordId == "" {
+			return e.NotFoundError("", nil)
+		}
+
+		requestInfo, err := e.RequestInfo()
+		if err != nil {
+			return firstApiError(err, e.BadRequestError("", err))
+		}
+
+		hasSuperuserAuth := requestInfo.HasSuperuserAuth()
+
+		if !hasSuperuserAuth && collection.UpdateRule == nil {
+			return firstApiError(err, e.ForbiddenError("Only superusers can perform this action.", nil))
+		}
+
+		// eager fetch the record so that the modifiers field values can be resolved
+		record, err := e.App.FindRecordById(collection, recordId)
+		if err != nil {
+			return firstApiError(err, e.NotFoundError("", err))
+		}
+
+		data, err := recordDataFromRequest(e, record)
+		if err != nil {
+			return firstApiError(err, e.BadRequestError("Failed to read the submitted data.", err))
+		}
+
+		// replace modifiers fields so that the resolved value is always
+		// available when accessing requestInfo.Body
+		requestInfo.Body = data
+
+		ruleFunc := func(q *dbx.SelectQuery) error {
+			if !hasSuperuserAuth && collection.UpdateRule != nil && *collection.UpdateRule != "" {
+				resolver := core.NewRecordFieldResolver(e.App, collection, requestInfo, true)
+				expr, err := search.FilterData(*collection.UpdateRule).BuildExpr(resolver)
+				if err != nil {
+					return err
+				}
+				resolver.UpdateQuery(q)
+				q.AndWhere(expr)
+			}
+			return nil
+		}
+
+		// refetch with access checks
+		record, err = e.App.FindRecordById(collection, recordId, ruleFunc)
+		if err != nil {
+			return firstApiError(err, e.NotFoundError("", err))
+		}
+
+		form := forms.NewRecordUpsert(e.App, record)
+		if hasSuperuserAuth {
+			form.GrantSuperuserAccess()
+		}
+		form.Load(data)
+
+		manageRuleQuery := e.App.ConcurrentDB().Select("(1)").From(collection.Name).AndWhere(dbx.HashExp{
+			collection.Name + ".id": record.Id,
+		})
+		if !form.HasManageAccess() &&
+			hasAuthManageAccess(e.App, requestInfo, collection, manageRuleQuery) {
+			form.GrantManagerAccess()
+		}
+
+		var isOptFinalizerCalled bool
+
+		event := new(core.RecordRequestEvent)
+		event.RequestEvent = e
+		event.Collection = collection
+		event.Record = record
+
+		hookErr := e.App.OnRecordUpdateRequest().Trigger(event, func(e *core.RecordRequestEvent) error {
+			form.SetApp(e.App)
+			form.SetRecord(e.Record)
+
+			err := form.Submit()
+			if err != nil {
+				return firstApiError(err, e.BadRequestError("Failed to update record.", err))
+			}
+
+			err = EnrichRecord(e.RequestEvent, e.Record)
+			if err != nil {
+				return firstApiError(err, e.InternalServerError("Failed to enrich record", err))
+			}
+
+			err = execAfterSuccessTx(responseWriteAfterTx, e.App, func() error {
+				return e.JSON(http.StatusOK, e.Record)
+			})
+			if err != nil {
+				return err
+			}
+
+			if optFinalizer != nil {
+				isOptFinalizerCalled = true
+				err = optFinalizer(e.Record)
+				if err != nil {
+					return firstApiError(err, e.InternalServerError("", fmt.Errorf("update optFinalizer error: %w", err)))
+				}
+			}
+
+			return nil
+		})
+		if hookErr != nil {
+			return hookErr
+		}
+
+		// e.g. in case the regular hook chain was stopped and the finalizer cannot be executed as part of the last e.Next() task
+		if !isOptFinalizerCalled && optFinalizer != nil {
+			if err := optFinalizer(event.Record); err != nil {
+				return firstApiError(err, e.InternalServerError("", fmt.Errorf("update optFinalizer error: %w", err)))
+			}
+		}
+
+		return nil
+	}
+}
+
+func recordDelete(responseWriteAfterTx bool, optFinalizer func(data any) error) func(e *core.RequestEvent) error {
+	return func(e *core.RequestEvent) error {
+		collection, err := e.App.FindCachedCollectionByNameOrId(e.Request.PathValue("collection"))
+		if err != nil || collection == nil {
+			return e.NotFoundError("Missing collection context.", err)
+		}
+
+		if collection.IsView() {
+			return e.BadRequestError("Unsupported collection type.", nil)
+		}
+
+		err = checkCollectionRateLimit(e, collection, "delete")
+		if err != nil {
+			return err
+		}
+
+		recordId := e.Request.PathValue("id")
+		if recordId == "" {
+			return e.NotFoundError("", nil)
+		}
+
+		requestInfo, err := e.RequestInfo()
+		if err != nil {
+			return firstApiError(err, e.BadRequestError("", err))
+		}
+
+		if !requestInfo.HasSuperuserAuth() && collection.DeleteRule == nil {
+			return e.ForbiddenError("Only superusers can perform this action.", nil)
+		}
+
+		ruleFunc := func(q *dbx.SelectQuery) error {
+			if !requestInfo.HasSuperuserAuth() && collection.DeleteRule != nil && *collection.DeleteRule != "" {
+				resolver := core.NewRecordFieldResolver(e.App, collection, requestInfo, true)
+				expr, err := search.FilterData(*collection.DeleteRule).BuildExpr(resolver)
+				if err != nil {
+					return err
+				}
+				resolver.UpdateQuery(q)
+				q.AndWhere(expr)
+			}
+			return nil
+		}
+
+		record, err := e.App.FindRecordById(collection, recordId, ruleFunc)
+		if err != nil || record == nil {
+			return e.NotFoundError("", err)
+		}
+
+		var isOptFinalizerCalled bool
+
+		event := new(core.RecordRequestEvent)
+		event.RequestEvent = e
+		event.Collection = collection
+		event.Record = record
+
+		hookErr := e.App.OnRecordDeleteRequest().Trigger(event, func(e *core.RecordRequestEvent) error {
+			if err := e.App.Delete(e.Record); err != nil {
+				return firstApiError(err, e.BadRequestError("Failed to delete record. Make sure that the record is not part of a required relation reference.", err))
+			}
+
+			err = execAfterSuccessTx(responseWriteAfterTx, e.App, func() error {
+				return e.NoContent(http.StatusNoContent)
+			})
+			if err != nil {
+				return err
+			}
+
+			if optFinalizer != nil {
+				isOptFinalizerCalled = true
+				err = optFinalizer(e.Record)
+				if err != nil {
+					return firstApiError(err, e.InternalServerError("", fmt.Errorf("delete optFinalizer error: %w", err)))
+				}
+			}
+
+			return nil
+		})
+		if hookErr != nil {
+			return hookErr
+		}
+
+		// e.g. in case the regular hook chain was stopped and the finalizer cannot be executed as part of the last e.Next() task
+		if !isOptFinalizerCalled && optFinalizer != nil {
+			if err := optFinalizer(event.Record); err != nil {
+				return firstApiError(err, e.InternalServerError("", fmt.Errorf("delete optFinalizer error: %w", err)))
+			}
+		}
+
+		return nil
+	}
+}
+
+// -------------------------------------------------------------------
+
+func recordDataFromRequest(e *core.RequestEvent, record *core.Record) (map[string]any, error) {
+	info, err := e.RequestInfo()
+	if err != nil {
+		return nil, err
+	}
+
+	// resolve regular fields
+	result := record.ReplaceModifiers(info.Body)
+
+	// resolve uploaded files
+	uploadedFiles, err := extractUploadedFiles(e, record.Collection(), "")
+	if err != nil {
+		return nil, err
+	}
+	if len(uploadedFiles) > 0 {
+		for k, files := range uploadedFiles {
+			uploaded := make([]any, 0, len(files))
+
+			// if not remove/prepend/append -> merge with the submitted
+			// info.Body values to prevent accidental old files deletion
+			if info.Body[k] != nil &&
+				!strings.HasPrefix(k, "+") &&
+				!strings.HasSuffix(k, "+") &&
+				!strings.HasSuffix(k, "-") {
+				existing := list.ToUniqueStringSlice(info.Body[k])
+				for _, name := range existing {
+					uploaded = append(uploaded, name)
+				}
+			}
+
+			for _, file := range files {
+				uploaded = append(uploaded, file)
+			}
+
+			result[k] = uploaded
+		}
+
+		result = record.ReplaceModifiers(result)
+	}
+
+	isAuth := record.Collection().IsAuth()
+
+	// unset hidden fields for non-superusers
+	if !info.HasSuperuserAuth() {
+		for _, f := range record.Collection().Fields {
+			if f.GetHidden() {
+				// exception for the auth collection "password" field
+				if isAuth && f.GetName() == core.FieldNamePassword {
+					continue
+				}
+
+				delete(result, f.GetName())
+			}
+		}
+	}
+
+	return result, nil
+}
+
+func extractUploadedFiles(re *core.RequestEvent, collection *core.Collection, prefix string) (map[string][]*filesystem.File, error) {
+	contentType := re.Request.Header.Get("content-type")
+	if !strings.HasPrefix(contentType, "multipart/form-data") {
+		return nil, nil // not multipart/form-data request
+	}
+
+	result := map[string][]*filesystem.File{}
+
+	for _, field := range collection.Fields {
+		if field.Type() != core.FieldTypeFile {
+			continue
+		}
+
+		baseKey := field.GetName()
+
+		keys := []string{
+			baseKey,
+			// prepend and append modifiers
+			"+" + baseKey,
+			baseKey + "+",
+		}
+
+		for _, k := range keys {
+			if prefix != "" {
+				k = prefix + "." + k
+			}
+			files, err := re.FindUploadedFiles(k)
+			if err != nil && !errors.Is(err, http.ErrMissingFile) {
+				return nil, err
+			}
+			if len(files) > 0 {
+				result[k] = files
+			}
+		}
+	}
+
+	return result, nil
+}
+
+// hasAuthManageAccess checks whether the client is allowed to have
+// [forms.RecordUpsert] auth management permissions
+// (e.g. allowing to change system auth fields without oldPassword).
+func hasAuthManageAccess(app core.App, requestInfo *core.RequestInfo, collection *core.Collection, query *dbx.SelectQuery) bool {
+	if !collection.IsAuth() {
+		return false
+	}
+
+	manageRule := collection.ManageRule
+
+	if manageRule == nil || *manageRule == "" {
+		return false // only for superusers (manageRule can't be empty)
+	}
+
+	if requestInfo == nil || requestInfo.Auth == nil {
+		return false // no auth record
+	}
+
+	resolver := core.NewRecordFieldResolver(app, collection, requestInfo, true)
+
+	expr, err := search.FilterData(*manageRule).BuildExpr(resolver)
+	if err != nil {
+		app.Logger().Error("Manage rule build expression error", "error", err, "collectionId", collection.Id)
+		return false
+	}
+	query.AndWhere(expr)
+
+	resolver.UpdateQuery(query)
+
+	var exists int
+
+	err = query.Limit(1).Row(&exists)
+
+	return err == nil && exists > 0
+}