mirror of
https://github.com/openimsdk/open-im-server.git
synced 2025-11-04 11:22:10 +08:00
66 lines
1.9 KiB
Go
66 lines
1.9 KiB
Go
package friend
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import (
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"context"
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"crypto/md5"
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"encoding/binary"
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"encoding/json"
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"github.com/openimsdk/open-im-server/v3/pkg/common/db/dataver"
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"github.com/openimsdk/open-im-server/v3/pkg/common/db/table/relation"
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pbfriend "github.com/openimsdk/protocol/friend"
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)
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func (s *friendServer) SearchFriends(ctx context.Context, req *pbfriend.SearchFriendsReq) (*pbfriend.SearchFriendsResp, error) {
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//TODO implement me
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panic("implement me")
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}
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func (s *friendServer) sortFriendUserIDsHash(userIDs []string) uint64 {
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data, _ := json.Marshal(userIDs)
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sum := md5.Sum(data)
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return binary.BigEndian.Uint64(sum[:])
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}
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func (s *friendServer) IncrSyncFriends(ctx context.Context, req *pbfriend.IncrSyncFriendsReq) (*pbfriend.IncrSyncFriendsResp, error) {
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var limit int
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if req.Version > 0 {
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limit = s.config.RpcConfig.FriendSyncCount
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}
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incrVer, err := s.friendDatabase.FindFriendIncrVersion(ctx, req.UserID, uint(req.Version), limit)
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if err != nil {
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return nil, err
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}
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sortUserIDs, err := s.friendDatabase.FindSortFriendUserIDs(ctx, req.UserID)
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if err != nil {
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return nil, err
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}
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if len(sortUserIDs) == 0 {
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return &pbfriend.IncrSyncFriendsResp{
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Version: uint64(incrVer.Version),
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Full: true,
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SyncCount: uint32(s.config.RpcConfig.FriendSyncCount),
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}, nil
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}
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var changes []*relation.FriendModel
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res := dataver.NewSyncResult(incrVer, sortUserIDs)
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if len(res.Changes) > 0 {
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changes, err = s.friendDatabase.FindFriendsWithError(ctx, req.UserID, res.Changes)
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if err != nil {
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return nil, err
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}
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}
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calcHash := s.sortFriendUserIDsHash(sortUserIDs)
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if calcHash == req.IdHash {
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sortUserIDs = nil
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}
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return &pbfriend.IncrSyncFriendsResp{
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Version: uint64(res.Version),
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Full: res.Full,
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SyncCount: uint32(s.config.RpcConfig.FriendSyncCount),
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SortUserIdHash: calcHash,
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SortUserIds: sortUserIDs,
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DeleteUserIds: res.DeleteEID,
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Changes: friendsDB2PB(changes),
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}, nil
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}
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