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// Copyright © 2023 OpenIM. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package msggateway
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import (
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"context"
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"encoding/json"
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"sync"
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"github.com/openimsdk/open-im-server/v3/pkg/rpcli"
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"github.com/go-playground/validator/v10"
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"google.golang.org/protobuf/proto"
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"github.com/openimsdk/protocol/msg"
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"github.com/openimsdk/protocol/push"
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"github.com/openimsdk/protocol/rtc"
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"github.com/openimsdk/protocol/sdkws"
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"github.com/openimsdk/tools/errs"
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"github.com/openimsdk/tools/log"
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"github.com/openimsdk/tools/utils/jsonutil"
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)
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const (
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TextPing = "ping"
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TextPong = "pong"
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)
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type TextMessage struct {
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Type string `json:"type"`
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Body json.RawMessage `json:"body"`
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}
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type Req struct {
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ReqIdentifier int32 `json:"reqIdentifier" validate:"required"`
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Token string `json:"token"`
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SendID string `json:"sendID" validate:"required"`
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OperationID string `json:"operationID" validate:"required"`
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MsgIncr string `json:"msgIncr" validate:"required"`
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Data []byte `json:"data"`
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}
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func (r *Req) String() string {
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var tReq Req
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tReq.ReqIdentifier = r.ReqIdentifier
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tReq.Token = r.Token
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tReq.SendID = r.SendID
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tReq.OperationID = r.OperationID
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tReq.MsgIncr = r.MsgIncr
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return jsonutil.StructToJsonString(tReq)
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}
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var reqPool = sync.Pool{
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New: func() any {
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return new(Req)
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},
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}
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func getReq() *Req {
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req := reqPool.Get().(*Req)
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req.Data = nil
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req.MsgIncr = ""
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req.OperationID = ""
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req.ReqIdentifier = 0
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req.SendID = ""
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req.Token = ""
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return req
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}
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func freeReq(req *Req) {
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reqPool.Put(req)
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}
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type Resp struct {
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ReqIdentifier int32 `json:"reqIdentifier"`
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MsgIncr string `json:"msgIncr"`
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OperationID string `json:"operationID"`
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ErrCode int `json:"errCode"`
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ErrMsg string `json:"errMsg"`
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Data []byte `json:"data"`
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}
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func (r *Resp) String() string {
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var tResp Resp
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tResp.ReqIdentifier = r.ReqIdentifier
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tResp.MsgIncr = r.MsgIncr
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tResp.OperationID = r.OperationID
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tResp.ErrCode = r.ErrCode
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tResp.ErrMsg = r.ErrMsg
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return jsonutil.StructToJsonString(tResp)
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}
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type MessageHandler interface {
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GetSeq(ctx context.Context, data *Req) ([]byte, error)
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SendMessage(ctx context.Context, data *Req) ([]byte, error)
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SendSignalMessage(ctx context.Context, data *Req) ([]byte, error)
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PullMessageBySeqList(ctx context.Context, data *Req) ([]byte, error)
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GetConversationsHasReadAndMaxSeq(ctx context.Context, data *Req) ([]byte, error)
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GetSeqMessage(ctx context.Context, data *Req) ([]byte, error)
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UserLogout(ctx context.Context, data *Req) ([]byte, error)
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SetUserDeviceBackground(ctx context.Context, data *Req) ([]byte, bool, error)
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GetLastMessage(ctx context.Context, data *Req) ([]byte, error)
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}
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var _ MessageHandler = (*GrpcHandler)(nil)
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type GrpcHandler struct {
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validate *validator.Validate
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msgClient *rpcli.MsgClient
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pushClient *rpcli.PushMsgServiceClient
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rtcClient *rpcli.RtcServiceClient
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}
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func NewGrpcHandler(validate *validator.Validate, msgClient *rpcli.MsgClient, pushClient *rpcli.PushMsgServiceClient, rtcClient *rpcli.RtcServiceClient) *GrpcHandler {
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return &GrpcHandler{
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validate: validate,
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msgClient: msgClient,
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pushClient: pushClient,
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rtcClient: rtcClient,
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}
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}
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func (g *GrpcHandler) GetSeq(ctx context.Context, data *Req) ([]byte, error) {
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req := sdkws.GetMaxSeqReq{}
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if err := proto.Unmarshal(data.Data, &req); err != nil {
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return nil, errs.WrapMsg(err, "GetSeq: error unmarshaling request", "action", "unmarshal", "dataType", "GetMaxSeqReq")
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}
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if err := g.validate.Struct(&req); err != nil {
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return nil, errs.WrapMsg(err, "GetSeq: validation failed", "action", "validate", "dataType", "GetMaxSeqReq")
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}
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resp, err := g.msgClient.MsgClient.GetMaxSeq(ctx, &req)
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if err != nil {
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return nil, err
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}
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c, err := proto.Marshal(resp)
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if err != nil {
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return nil, errs.WrapMsg(err, "GetSeq: error marshaling response", "action", "marshal", "dataType", "GetMaxSeqResp")
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}
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return c, nil
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}
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// SendMessage handles the sending of messages through gRPC. It unmarshals the request data,
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// validates the message, and then sends it using the message RPC client.
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func (g *GrpcHandler) SendMessage(ctx context.Context, data *Req) ([]byte, error) {
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var msgData sdkws.MsgData
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if err := proto.Unmarshal(data.Data, &msgData); err != nil {
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return nil, errs.WrapMsg(err, "SendMessage: error unmarshaling message data", "action", "unmarshal", "dataType", "MsgData")
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}
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if err := g.validate.Struct(&msgData); err != nil {
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return nil, errs.WrapMsg(err, "SendMessage: message data validation failed", "action", "validate", "dataType", "MsgData")
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}
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req := msg.SendMsgReq{MsgData: &msgData}
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resp, err := g.msgClient.MsgClient.SendMsg(ctx, &req)
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if err != nil {
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return nil, err
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}
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c, err := proto.Marshal(resp)
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if err != nil {
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return nil, errs.WrapMsg(err, "SendMessage: error marshaling response", "action", "marshal", "dataType", "SendMsgResp")
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}
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return c, nil
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}
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func (g *GrpcHandler) SendSignalMessage(ctx context.Context, data *Req) ([]byte, error) {
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// SDK 长连接发送的是 proto.Marshal(SignalReq)；HTTP/gRPC 侧使用 SignalMessageAssembleReq 包装。
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var assembleReq rtc.SignalMessageAssembleReq
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if err := proto.Unmarshal(data.Data, &assembleReq); err != nil || assembleReq.SignalReq == nil {
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var signalReq rtc.SignalReq
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if err2 := proto.Unmarshal(data.Data, &signalReq); err2 != nil {
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log.ZError(ctx, "SendSignalMessage", err2, "r", err2.Error())
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return nil, errs.WrapMsg(err2, "SendSignalMessage: error unmarshaling request", "action", "unmarshal", "dataType", "SignalReq")
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}
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assembleReq.SignalReq = &signalReq
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}
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resp, err := g.rtcClient.RtcServiceClient.SignalMessageAssemble(ctx, &assembleReq)
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if err != nil {
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log.ZError(ctx, "SendSignalMessage", err, "r", err.Error())
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return nil, err
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}
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if resp == nil || resp.SignalResp == nil {
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return nil, errs.WrapMsg(errs.ErrInternalServer.WrapMsg("empty signal response"), "SendSignalMessage")
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}
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c, err := proto.Marshal(resp.SignalResp)
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if err != nil {
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log.ZError(ctx, "SendSignalMessage", err, "r", err.Error())
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return nil, errs.WrapMsg(err, "SendSignalMessage: error marshaling response", "action", "marshal", "dataType", "SignalResp")
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}
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return c, nil
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}
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func (g *GrpcHandler) PullMessageBySeqList(ctx context.Context, data *Req) ([]byte, error) {
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req := sdkws.PullMessageBySeqsReq{}
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if err := proto.Unmarshal(data.Data, &req); err != nil {
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return nil, errs.WrapMsg(err, "err proto unmarshal", "action", "unmarshal", "dataType", "PullMessageBySeqsReq")
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}
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if err := g.validate.Struct(data); err != nil {
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return nil, errs.WrapMsg(err, "validation failed", "action", "validate", "dataType", "PullMessageBySeqsReq")
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}
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resp, err := g.msgClient.MsgClient.PullMessageBySeqs(ctx, &req)
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if err != nil {
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return nil, err
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}
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c, err := proto.Marshal(resp)
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if err != nil {
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return nil, errs.WrapMsg(err, "error marshaling response", "action", "marshal", "dataType", "PullMessageBySeqsResp")
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}
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return c, nil
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}
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func (g *GrpcHandler) GetConversationsHasReadAndMaxSeq(ctx context.Context, data *Req) ([]byte, error) {
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req := msg.GetConversationsHasReadAndMaxSeqReq{}
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if err := proto.Unmarshal(data.Data, &req); err != nil {
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return nil, errs.WrapMsg(err, "err proto unmarshal", "action", "unmarshal", "dataType", "GetConversationsHasReadAndMaxSeq")
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}
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if err := g.validate.Struct(data); err != nil {
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return nil, errs.WrapMsg(err, "validation failed", "action", "validate", "dataType", "GetConversationsHasReadAndMaxSeq")
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}
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resp, err := g.msgClient.MsgClient.GetConversationsHasReadAndMaxSeq(ctx, &req)
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if err != nil {
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return nil, err
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}
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c, err := proto.Marshal(resp)
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if err != nil {
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return nil, errs.WrapMsg(err, "error marshaling response", "action", "marshal", "dataType", "GetConversationsHasReadAndMaxSeq")
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}
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return c, nil
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}
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func (g *GrpcHandler) GetSeqMessage(ctx context.Context, data *Req) ([]byte, error) {
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req := msg.GetSeqMessageReq{}
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if err := proto.Unmarshal(data.Data, &req); err != nil {
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return nil, errs.WrapMsg(err, "error unmarshaling request", "action", "unmarshal", "dataType", "GetSeqMessage")
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}
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if err := g.validate.Struct(data); err != nil {
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return nil, errs.WrapMsg(err, "validation failed", "action", "validate", "dataType", "GetSeqMessage")
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}
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resp, err := g.msgClient.MsgClient.GetSeqMessage(ctx, &req)
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if err != nil {
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return nil, err
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}
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c, err := proto.Marshal(resp)
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if err != nil {
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return nil, errs.WrapMsg(err, "error marshaling response", "action", "marshal", "dataType", "GetSeqMessage")
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}
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return c, nil
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}
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func (g *GrpcHandler) UserLogout(ctx context.Context, data *Req) ([]byte, error) {
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req := push.DelUserPushTokenReq{}
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if err := proto.Unmarshal(data.Data, &req); err != nil {
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return nil, errs.WrapMsg(err, "error unmarshaling request", "action", "unmarshal", "dataType", "DelUserPushTokenReq")
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}
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resp, err := g.pushClient.PushMsgServiceClient.DelUserPushToken(ctx, &req)
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if err != nil {
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return nil, err
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}
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c, err := proto.Marshal(resp)
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if err != nil {
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return nil, errs.WrapMsg(err, "error marshaling response", "action", "marshal", "dataType", "DelUserPushTokenResp")
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}
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return c, nil
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}
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func (g *GrpcHandler) SetUserDeviceBackground(ctx context.Context, data *Req) ([]byte, bool, error) {
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req := sdkws.SetAppBackgroundStatusReq{}
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if err := proto.Unmarshal(data.Data, &req); err != nil {
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return nil, false, errs.WrapMsg(err, "error unmarshaling request", "action", "unmarshal", "dataType", "SetAppBackgroundStatusReq")
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}
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if err := g.validate.Struct(data); err != nil {
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return nil, false, errs.WrapMsg(err, "validation failed", "action", "validate", "dataType", "SetAppBackgroundStatusReq")
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}
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return nil, req.IsBackground, nil
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}
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func (g *GrpcHandler) GetLastMessage(ctx context.Context, data *Req) ([]byte, error) {
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var req msg.GetLastMessageReq
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if err := proto.Unmarshal(data.Data, &req); err != nil {
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return nil, err
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}
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resp, err := g.msgClient.GetLastMessage(ctx, &req)
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if err != nil {
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return nil, err
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}
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return proto.Marshal(resp)
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}
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