memos/server/router/api/v1/memo_service.go
2024-12-26 20:13:05 +08:00

706 lines
23 KiB
Go

package v1
import (
"context"
"fmt"
"log/slog"
"time"
"unicode/utf8"
"github.com/lithammer/shortuuid/v4"
"github.com/pkg/errors"
"github.com/usememos/gomark/ast"
"github.com/usememos/gomark/parser"
"github.com/usememos/gomark/parser/tokenizer"
"github.com/usememos/gomark/renderer"
"github.com/usememos/gomark/restore"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/status"
"google.golang.org/protobuf/types/known/emptypb"
"google.golang.org/protobuf/types/known/timestamppb"
"github.com/usememos/memos/plugin/webhook"
v1pb "github.com/usememos/memos/proto/gen/api/v1"
storepb "github.com/usememos/memos/proto/gen/store"
"github.com/usememos/memos/server/runner/memopayload"
"github.com/usememos/memos/store"
)
func (s *APIV1Service) CreateMemo(ctx context.Context, request *v1pb.CreateMemoRequest) (*v1pb.Memo, error) {
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get user")
}
create := &store.Memo{
UID: shortuuid.New(),
CreatorID: user.ID,
Content: request.Content,
Visibility: convertVisibilityToStore(request.Visibility),
}
workspaceMemoRelatedSetting, err := s.Store.GetWorkspaceMemoRelatedSetting(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get workspace memo related setting")
}
if workspaceMemoRelatedSetting.DisallowPublicVisibility && create.Visibility == store.Public {
return nil, status.Errorf(codes.PermissionDenied, "disable public memos system setting is enabled")
}
contentLengthLimit, err := s.getContentLengthLimit(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get content length limit")
}
if len(create.Content) > contentLengthLimit {
return nil, status.Errorf(codes.InvalidArgument, "content too long (max %d characters)", contentLengthLimit)
}
if err := memopayload.RebuildMemoPayload(create); err != nil {
return nil, status.Errorf(codes.Internal, "failed to rebuild memo payload: %v", err)
}
if request.Location != nil {
create.Payload.Location = convertLocationToStore(request.Location)
}
memo, err := s.Store.CreateMemo(ctx, create)
if err != nil {
return nil, err
}
if len(request.Resources) > 0 {
_, err := s.SetMemoResources(ctx, &v1pb.SetMemoResourcesRequest{
Name: fmt.Sprintf("%s%d", MemoNamePrefix, memo.ID),
Resources: request.Resources,
})
if err != nil {
return nil, errors.Wrap(err, "failed to set memo resources")
}
}
if len(request.Relations) > 0 {
_, err := s.SetMemoRelations(ctx, &v1pb.SetMemoRelationsRequest{
Name: fmt.Sprintf("%s%d", MemoNamePrefix, memo.ID),
Relations: request.Relations,
})
if err != nil {
return nil, errors.Wrap(err, "failed to set memo relations")
}
}
memoMessage, err := s.convertMemoFromStore(ctx, memo, v1pb.MemoView_MEMO_VIEW_FULL)
if err != nil {
return nil, errors.Wrap(err, "failed to convert memo")
}
// Try to dispatch webhook when memo is created.
if err := s.DispatchMemoCreatedWebhook(ctx, memoMessage); err != nil {
slog.Warn("Failed to dispatch memo created webhook", slog.Any("err", err))
}
return memoMessage, nil
}
func (s *APIV1Service) ListMemos(ctx context.Context, request *v1pb.ListMemosRequest) (*v1pb.ListMemosResponse, error) {
memoFind := &store.FindMemo{
// Exclude comments by default.
ExcludeComments: true,
}
if err := s.buildMemoFindWithFilter(ctx, memoFind, request.Filter); err != nil {
return nil, status.Errorf(codes.InvalidArgument, "failed to build find memos with filter: %v", err)
}
var limit, offset int
if request.PageToken != "" {
var pageToken v1pb.PageToken
if err := unmarshalPageToken(request.PageToken, &pageToken); err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid page token: %v", err)
}
limit = int(pageToken.Limit)
offset = int(pageToken.Offset)
} else {
limit = int(request.PageSize)
}
if limit <= 0 {
limit = DefaultPageSize
}
limitPlusOne := limit + 1
memoFind.Limit = &limitPlusOne
memoFind.Offset = &offset
if request.View == v1pb.MemoView_MEMO_VIEW_METADATA_ONLY {
memoFind.ExcludeContent = true
}
memos, err := s.Store.ListMemos(ctx, memoFind)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to list memos: %v", err)
}
memoMessages := []*v1pb.Memo{}
nextPageToken := ""
if len(memos) == limitPlusOne {
memos = memos[:limit]
nextPageToken, err = getPageToken(limit, offset+limit)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get next page token, error: %v", err)
}
}
for _, memo := range memos {
memoMessage, err := s.convertMemoFromStore(ctx, memo, request.View)
if err != nil {
return nil, errors.Wrap(err, "failed to convert memo")
}
memoMessages = append(memoMessages, memoMessage)
}
response := &v1pb.ListMemosResponse{
Memos: memoMessages,
NextPageToken: nextPageToken,
}
return response, nil
}
func (s *APIV1Service) GetMemo(ctx context.Context, request *v1pb.GetMemoRequest) (*v1pb.Memo, error) {
id, err := ExtractMemoIDFromName(request.Name)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
memo, err := s.Store.GetMemo(ctx, &store.FindMemo{
ID: &id,
})
if err != nil {
return nil, err
}
if memo == nil {
return nil, status.Errorf(codes.NotFound, "memo not found")
}
if memo.Visibility != store.Public {
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get user")
}
if user == nil {
return nil, status.Errorf(codes.PermissionDenied, "permission denied")
}
if memo.Visibility == store.Private && memo.CreatorID != user.ID {
return nil, status.Errorf(codes.PermissionDenied, "permission denied")
}
}
memoMessage, err := s.convertMemoFromStore(ctx, memo, v1pb.MemoView_MEMO_VIEW_FULL)
if err != nil {
return nil, errors.Wrap(err, "failed to convert memo")
}
return memoMessage, nil
}
//nolint:all
func (s *APIV1Service) GetMemoByUid(ctx context.Context, request *v1pb.GetMemoByUidRequest) (*v1pb.Memo, error) {
memo, err := s.Store.GetMemo(ctx, &store.FindMemo{
UID: &request.Uid,
})
if err != nil {
return nil, err
}
if memo == nil {
return nil, status.Errorf(codes.NotFound, "memo not found")
}
if memo.Visibility != store.Public {
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get user")
}
if user == nil {
return nil, status.Errorf(codes.PermissionDenied, "permission denied")
}
if memo.Visibility == store.Private && memo.CreatorID != user.ID {
return nil, status.Errorf(codes.PermissionDenied, "permission denied")
}
}
memoMessage, err := s.convertMemoFromStore(ctx, memo, v1pb.MemoView_MEMO_VIEW_FULL)
if err != nil {
return nil, errors.Wrap(err, "failed to convert memo")
}
return memoMessage, nil
}
func (s *APIV1Service) UpdateMemo(ctx context.Context, request *v1pb.UpdateMemoRequest) (*v1pb.Memo, error) {
id, err := ExtractMemoIDFromName(request.Memo.Name)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
if request.UpdateMask == nil || len(request.UpdateMask.Paths) == 0 {
return nil, status.Errorf(codes.InvalidArgument, "update mask is required")
}
memo, err := s.Store.GetMemo(ctx, &store.FindMemo{ID: &id})
if err != nil {
return nil, err
}
if memo == nil {
return nil, status.Errorf(codes.NotFound, "memo not found")
}
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get current user")
}
// Only the creator or admin can update the memo.
if memo.CreatorID != user.ID && !isSuperUser(user) {
return nil, status.Errorf(codes.PermissionDenied, "permission denied")
}
currentTs := time.Now().Unix()
update := &store.UpdateMemo{
ID: id,
UpdatedTs: &currentTs,
}
for _, path := range request.UpdateMask.Paths {
if path == "content" {
contentLengthLimit, err := s.getContentLengthLimit(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get content length limit")
}
if len(request.Memo.Content) > contentLengthLimit {
return nil, status.Errorf(codes.InvalidArgument, "content too long (max %d characters)", contentLengthLimit)
}
memo.Content = request.Memo.Content
if err := memopayload.RebuildMemoPayload(memo); err != nil {
return nil, status.Errorf(codes.Internal, "failed to rebuild memo payload: %v", err)
}
update.Content = &memo.Content
update.Payload = memo.Payload
} else if path == "visibility" {
workspaceMemoRelatedSetting, err := s.Store.GetWorkspaceMemoRelatedSetting(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get workspace memo related setting")
}
visibility := convertVisibilityToStore(request.Memo.Visibility)
if workspaceMemoRelatedSetting.DisallowPublicVisibility && visibility == store.Public {
return nil, status.Errorf(codes.PermissionDenied, "disable public memos system setting is enabled")
}
update.Visibility = &visibility
} else if path == "row_status" {
rowStatus := convertRowStatusToStore(request.Memo.RowStatus)
update.RowStatus = &rowStatus
} else if path == "create_time" {
createdTs := request.Memo.CreateTime.AsTime().Unix()
update.CreatedTs = &createdTs
} else if path == "display_time" {
displayTs := request.Memo.DisplayTime.AsTime().Unix()
memoRelatedSetting, err := s.Store.GetWorkspaceMemoRelatedSetting(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get workspace memo related setting")
}
if memoRelatedSetting.DisplayWithUpdateTime {
update.UpdatedTs = &displayTs
} else {
update.CreatedTs = &displayTs
}
} else if path == "pinned" {
if _, err := s.Store.UpsertMemoOrganizer(ctx, &store.MemoOrganizer{
MemoID: id,
UserID: user.ID,
Pinned: request.Memo.Pinned,
}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to upsert memo organizer")
}
} else if path == "resources" {
_, err := s.SetMemoResources(ctx, &v1pb.SetMemoResourcesRequest{
Name: request.Memo.Name,
Resources: request.Memo.Resources,
})
if err != nil {
return nil, errors.Wrap(err, "failed to set memo resources")
}
} else if path == "relations" {
_, err := s.SetMemoRelations(ctx, &v1pb.SetMemoRelationsRequest{
Name: request.Memo.Name,
Relations: request.Memo.Relations,
})
if err != nil {
return nil, errors.Wrap(err, "failed to set memo relations")
}
} else if path == "location" {
payload := memo.Payload
payload.Location = convertLocationToStore(request.Memo.Location)
update.Payload = payload
}
}
if err = s.Store.UpdateMemo(ctx, update); err != nil {
return nil, status.Errorf(codes.Internal, "failed to update memo")
}
memo, err = s.Store.GetMemo(ctx, &store.FindMemo{
ID: &id,
})
if err != nil {
return nil, errors.Wrap(err, "failed to get memo")
}
memoMessage, err := s.convertMemoFromStore(ctx, memo, v1pb.MemoView_MEMO_VIEW_FULL)
if err != nil {
return nil, errors.Wrap(err, "failed to convert memo")
}
// Try to dispatch webhook when memo is updated.
if err := s.DispatchMemoUpdatedWebhook(ctx, memoMessage); err != nil {
slog.Warn("Failed to dispatch memo updated webhook", slog.Any("err", err))
}
return memoMessage, nil
}
func (s *APIV1Service) DeleteMemo(ctx context.Context, request *v1pb.DeleteMemoRequest) (*emptypb.Empty, error) {
id, err := ExtractMemoIDFromName(request.Name)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
memo, err := s.Store.GetMemo(ctx, &store.FindMemo{
ID: &id,
})
if err != nil {
return nil, err
}
if memo == nil {
return nil, status.Errorf(codes.NotFound, "memo not found")
}
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get current user")
}
// Only the creator or admin can update the memo.
if memo.CreatorID != user.ID && !isSuperUser(user) {
return nil, status.Errorf(codes.PermissionDenied, "permission denied")
}
if memoMessage, err := s.convertMemoFromStore(ctx, memo, v1pb.MemoView_MEMO_VIEW_METADATA_ONLY); err == nil {
// Try to dispatch webhook when memo is deleted.
if err := s.DispatchMemoDeletedWebhook(ctx, memoMessage); err != nil {
slog.Warn("Failed to dispatch memo deleted webhook", slog.Any("err", err))
}
}
if err = s.Store.DeleteMemo(ctx, &store.DeleteMemo{ID: id}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to delete memo")
}
// Delete memo relation
if err := s.Store.DeleteMemoRelation(ctx, &store.DeleteMemoRelation{MemoID: &id}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to delete memo relations")
}
// Delete related resources.
resources, err := s.Store.ListResources(ctx, &store.FindResource{MemoID: &id})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to list resources")
}
for _, resource := range resources {
if err := s.Store.DeleteResource(ctx, &store.DeleteResource{ID: resource.ID}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to delete resource")
}
}
// Delete memo comments
commentType := store.MemoRelationComment
relations, err := s.Store.ListMemoRelations(ctx, &store.FindMemoRelation{RelatedMemoID: &id, Type: &commentType})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to list memo comments")
}
for _, relation := range relations {
if _, err := s.DeleteMemo(ctx, &v1pb.DeleteMemoRequest{Name: fmt.Sprintf("%s%d", MemoNamePrefix, relation.MemoID)}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to delete memo comment")
}
}
// Delete memo references
referenceType := store.MemoRelationReference
if err := s.Store.DeleteMemoRelation(ctx, &store.DeleteMemoRelation{RelatedMemoID: &id, Type: &referenceType}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to delete memo references")
}
return &emptypb.Empty{}, nil
}
func (s *APIV1Service) CreateMemoComment(ctx context.Context, request *v1pb.CreateMemoCommentRequest) (*v1pb.Memo, error) {
id, err := ExtractMemoIDFromName(request.Name)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
relatedMemo, err := s.Store.GetMemo(ctx, &store.FindMemo{ID: &id})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get memo")
}
// Create the comment memo first.
memo, err := s.CreateMemo(ctx, request.Comment)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to create memo")
}
// Build the relation between the comment memo and the original memo.
memoID, err := ExtractMemoIDFromName(memo.Name)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
_, err = s.Store.UpsertMemoRelation(ctx, &store.MemoRelation{
MemoID: memoID,
RelatedMemoID: relatedMemo.ID,
Type: store.MemoRelationComment,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to create memo relation")
}
creatorID, err := ExtractUserIDFromName(memo.Creator)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo creator")
}
if memo.Visibility != v1pb.Visibility_PRIVATE && creatorID != relatedMemo.CreatorID {
activity, err := s.Store.CreateActivity(ctx, &store.Activity{
CreatorID: creatorID,
Type: store.ActivityTypeMemoComment,
Level: store.ActivityLevelInfo,
Payload: &storepb.ActivityPayload{
MemoComment: &storepb.ActivityMemoCommentPayload{
MemoId: memoID,
RelatedMemoId: relatedMemo.ID,
},
},
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to create activity")
}
if _, err := s.Store.CreateInbox(ctx, &store.Inbox{
SenderID: creatorID,
ReceiverID: relatedMemo.CreatorID,
Status: store.UNREAD,
Message: &storepb.InboxMessage{
Type: storepb.InboxMessage_MEMO_COMMENT,
ActivityId: &activity.ID,
},
}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to create inbox")
}
}
return memo, nil
}
func (s *APIV1Service) ListMemoComments(ctx context.Context, request *v1pb.ListMemoCommentsRequest) (*v1pb.ListMemoCommentsResponse, error) {
id, err := ExtractMemoIDFromName(request.Name)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
memoRelationComment := store.MemoRelationComment
memoRelations, err := s.Store.ListMemoRelations(ctx, &store.FindMemoRelation{
RelatedMemoID: &id,
Type: &memoRelationComment,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to list memo relations")
}
var memos []*v1pb.Memo
for _, memoRelation := range memoRelations {
memo, err := s.Store.GetMemo(ctx, &store.FindMemo{
ID: &memoRelation.MemoID,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get memo")
}
if memo != nil {
memoMessage, err := s.convertMemoFromStore(ctx, memo, v1pb.MemoView_MEMO_VIEW_FULL)
if err != nil {
return nil, errors.Wrap(err, "failed to convert memo")
}
memos = append(memos, memoMessage)
}
}
response := &v1pb.ListMemoCommentsResponse{
Memos: memos,
}
return response, nil
}
func (s *APIV1Service) RenameMemoTag(ctx context.Context, request *v1pb.RenameMemoTagRequest) (*emptypb.Empty, error) {
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get current user")
}
memoFind := &store.FindMemo{
CreatorID: &user.ID,
PayloadFind: &store.FindMemoPayload{TagSearch: []string{request.OldTag}},
ExcludeComments: true,
}
if (request.Parent) != "memos/-" {
memoID, err := ExtractMemoIDFromName(request.Parent)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
memoFind.ID = &memoID
}
memos, err := s.Store.ListMemos(ctx, memoFind)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to list memos")
}
for _, memo := range memos {
nodes, err := parser.Parse(tokenizer.Tokenize(memo.Content))
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to parse memo: %v", err)
}
memopayload.TraverseASTNodes(nodes, func(node ast.Node) {
if tag, ok := node.(*ast.Tag); ok && tag.Content == request.OldTag {
tag.Content = request.NewTag
}
})
memo.Content = restore.Restore(nodes)
if err := memopayload.RebuildMemoPayload(memo); err != nil {
return nil, status.Errorf(codes.Internal, "failed to rebuild memo payload: %v", err)
}
if err := s.Store.UpdateMemo(ctx, &store.UpdateMemo{
ID: memo.ID,
Content: &memo.Content,
Payload: memo.Payload,
}); err != nil {
return nil, status.Errorf(codes.Internal, "failed to update memo: %v", err)
}
}
return &emptypb.Empty{}, nil
}
func (s *APIV1Service) DeleteMemoTag(ctx context.Context, request *v1pb.DeleteMemoTagRequest) (*emptypb.Empty, error) {
user, err := s.GetCurrentUser(ctx)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to get current user")
}
memoFind := &store.FindMemo{
CreatorID: &user.ID,
PayloadFind: &store.FindMemoPayload{TagSearch: []string{request.Tag}},
ExcludeContent: true,
ExcludeComments: true,
}
if (request.Parent) != "memos/-" {
memoID, err := ExtractMemoIDFromName(request.Parent)
if err != nil {
return nil, status.Errorf(codes.InvalidArgument, "invalid memo name: %v", err)
}
memoFind.ID = &memoID
}
memos, err := s.Store.ListMemos(ctx, memoFind)
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to list memos")
}
for _, memo := range memos {
if request.DeleteRelatedMemos {
err := s.Store.DeleteMemo(ctx, &store.DeleteMemo{ID: memo.ID})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to delete memo")
}
} else {
archived := store.Archived
err := s.Store.UpdateMemo(ctx, &store.UpdateMemo{
ID: memo.ID,
RowStatus: &archived,
})
if err != nil {
return nil, status.Errorf(codes.Internal, "failed to update memo")
}
}
}
return &emptypb.Empty{}, nil
}
func (s *APIV1Service) getContentLengthLimit(ctx context.Context) (int, error) {
workspaceMemoRelatedSetting, err := s.Store.GetWorkspaceMemoRelatedSetting(ctx)
if err != nil {
return 0, status.Errorf(codes.Internal, "failed to get workspace memo related setting")
}
return int(workspaceMemoRelatedSetting.ContentLengthLimit), nil
}
// DispatchMemoCreatedWebhook dispatches webhook when memo is created.
func (s *APIV1Service) DispatchMemoCreatedWebhook(ctx context.Context, memo *v1pb.Memo) error {
return s.dispatchMemoRelatedWebhook(ctx, memo, "memos.memo.created")
}
// DispatchMemoUpdatedWebhook dispatches webhook when memo is updated.
func (s *APIV1Service) DispatchMemoUpdatedWebhook(ctx context.Context, memo *v1pb.Memo) error {
return s.dispatchMemoRelatedWebhook(ctx, memo, "memos.memo.updated")
}
// DispatchMemoDeletedWebhook dispatches webhook when memo is deleted.
func (s *APIV1Service) DispatchMemoDeletedWebhook(ctx context.Context, memo *v1pb.Memo) error {
return s.dispatchMemoRelatedWebhook(ctx, memo, "memos.memo.deleted")
}
func (s *APIV1Service) dispatchMemoRelatedWebhook(ctx context.Context, memo *v1pb.Memo, activityType string) error {
creatorID, err := ExtractUserIDFromName(memo.Creator)
if err != nil {
return status.Errorf(codes.InvalidArgument, "invalid memo creator")
}
webhooks, err := s.Store.ListWebhooks(ctx, &store.FindWebhook{
CreatorID: &creatorID,
})
if err != nil {
return err
}
for _, hook := range webhooks {
payload, err := convertMemoToWebhookPayload(memo)
if err != nil {
return errors.Wrap(err, "failed to convert memo to webhook payload")
}
payload.ActivityType = activityType
payload.Url = hook.URL
if err := webhook.Post(payload); err != nil {
return errors.Wrap(err, "failed to post webhook")
}
}
return nil
}
func convertMemoToWebhookPayload(memo *v1pb.Memo) (*v1pb.WebhookRequestPayload, error) {
creatorID, err := ExtractUserIDFromName(memo.Creator)
if err != nil {
return nil, errors.Wrap(err, "invalid memo creator")
}
return &v1pb.WebhookRequestPayload{
CreatorId: creatorID,
CreateTime: timestamppb.New(time.Now()),
Memo: memo,
}, nil
}
func getMemoContentSnippet(content string) (string, error) {
nodes, err := parser.Parse(tokenizer.Tokenize(content))
if err != nil {
return "", errors.Wrap(err, "failed to parse content")
}
plainText := renderer.NewStringRenderer().Render(nodes)
if len(plainText) > 64 {
return substring(plainText, 64) + "...", nil
}
return plainText, nil
}
func substring(s string, length int) string {
if length <= 0 {
return ""
}
runeCount := 0
byteIndex := 0
for byteIndex < len(s) {
_, size := utf8.DecodeRuneInString(s[byteIndex:])
byteIndex += size
runeCount++
if runeCount == length {
break
}
}
return s[:byteIndex]
}