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Open-IM-Server/internal/push/offlinepush/getui/push.go

208 lines
5.7 KiB

// Copyright © 2023 OpenIM. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package getui
import (
"context"
"crypto/sha256"
"encoding/hex"
"errors"
"strconv"
"sync"
"time"
"github.com/go-redis/redis"
"github.com/OpenIMSDK/tools/errs"
"github.com/OpenIMSDK/tools/log"
"github.com/OpenIMSDK/tools/mcontext"
"github.com/OpenIMSDK/tools/utils/splitter"
"github.com/OpenIMSDK/Open-IM-Server/internal/push/offlinepush"
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/config"
"github.com/OpenIMSDK/Open-IM-Server/pkg/common/db/cache"
http2 "github.com/OpenIMSDK/Open-IM-Server/pkg/common/http"
"github.com/OpenIMSDK/tools/utils"
)
var (
ErrTokenExpire = errors.New("token expire")
ErrUserIDEmpty = errors.New("userIDs is empty")
)
const (
pushURL = "/push/single/alias"
authURL = "/auth"
taskURL = "/push/list/message"
batchPushURL = "/push/list/alias"
// codes.
tokenExpireCode = 10001
tokenExpireTime = 60 * 60 * 23
taskIDTTL = 1000 * 60 * 60 * 24
)
type Client struct {
cache cache.MsgModel
tokenExpireTime int64
taskIDTTL int64
}
func NewClient(cache cache.MsgModel) *Client {
return &Client{cache: cache, tokenExpireTime: tokenExpireTime, taskIDTTL: taskIDTTL}
}
func (g *Client) Push(ctx context.Context, userIDs []string, title, content string, opts *offlinepush.Opts) error {
token, err := g.cache.GetGetuiToken(ctx)
if err != nil {
if errs.Unwrap(err) == redis.Nil {
log.ZInfo(ctx, "getui token not exist in redis")
token, err = g.getTokenAndSave2Redis(ctx)
if err != nil {
return err
}
} else {
return err
}
}
pushReq := newPushReq(title, content)
pushReq.setPushChannel(title, content)
if len(userIDs) > 1 {
maxNum := 999
if len(userIDs) > maxNum {
s := splitter.NewSplitter(maxNum, userIDs)
wg := sync.WaitGroup{}
wg.Add(len(s.GetSplitResult()))
for i, v := range s.GetSplitResult() {
go func(index int, userIDs []string) {
defer wg.Done()
if err2 := g.batchPush(ctx, token, userIDs, pushReq); err2 != nil {
log.ZError(ctx, "batchPush failed", err2, "index", index, "token", token, "req", pushReq)
err = err2
}
}(i, v.Item)
}
wg.Wait()
} else {
err = g.batchPush(ctx, token, userIDs, pushReq)
}
} else if len(userIDs) == 1 {
err = g.singlePush(ctx, token, userIDs[0], pushReq)
} else {
return ErrUserIDEmpty
}
switch err {
case ErrTokenExpire:
token, err = g.getTokenAndSave2Redis(ctx)
}
return err
}
func (g *Client) Auth(ctx context.Context, timeStamp int64) (token string, expireTime int64, err error) {
h := sha256.New()
h.Write(
[]byte(config.Config.Push.GeTui.AppKey + strconv.Itoa(int(timeStamp)) + config.Config.Push.GeTui.MasterSecret),
)
sign := hex.EncodeToString(h.Sum(nil))
reqAuth := AuthReq{
Sign: sign,
Timestamp: strconv.Itoa(int(timeStamp)),
AppKey: config.Config.Push.GeTui.AppKey,
}
respAuth := AuthResp{}
err = g.request(ctx, authURL, reqAuth, "", &respAuth)
if err != nil {
return "", 0, err
}
expire, err := strconv.Atoi(respAuth.ExpireTime)
return respAuth.Token, int64(expire), err
}
func (g *Client) GetTaskID(ctx context.Context, token string, pushReq PushReq) (string, error) {
respTask := TaskResp{}
ttl := int64(1000 * 60 * 5)
pushReq.Settings = &Settings{TTL: &ttl}
err := g.request(ctx, taskURL, pushReq, token, &respTask)
if err != nil {
return "", utils.Wrap(err, "")
}
return respTask.TaskID, nil
}
// max num is 999.
func (g *Client) batchPush(ctx context.Context, token string, userIDs []string, pushReq PushReq) error {
taskID, err := g.GetTaskID(ctx, token, pushReq)
if err != nil {
return err
}
pushReq = newBatchPushReq(userIDs, taskID)
return g.request(ctx, batchPushURL, pushReq, token, nil)
}
func (g *Client) singlePush(ctx context.Context, token, userID string, pushReq PushReq) error {
operationID := mcontext.GetOperationID(ctx)
pushReq.RequestID = &operationID
pushReq.Audience = &Audience{Alias: []string{userID}}
return g.request(ctx, pushURL, pushReq, token, nil)
}
func (g *Client) request(ctx context.Context, url string, input interface{}, token string, output interface{}) error {
header := map[string]string{"token": token}
resp := &Resp{}
resp.Data = output
return g.postReturn(ctx, config.Config.Push.GeTui.PushUrl+url, header, input, resp, 3)
}
func (g *Client) postReturn(
ctx context.Context,
url string,
header map[string]string,
input interface{},
output RespI,
timeout int,
) error {
err := http2.PostReturn(ctx, url, header, input, output, timeout)
if err != nil {
return err
}
return output.parseError()
}
func (g *Client) getTokenAndSave2Redis(ctx context.Context) (token string, err error) {
token, _, err = g.Auth(ctx, time.Now().UnixNano()/1e6)
if err != nil {
return
}
err = g.cache.SetGetuiToken(ctx, token, 60*60*23)
if err != nil {
return
}
return token, nil
}
func (g *Client) GetTaskIDAndSave2Redis(ctx context.Context, token string, pushReq PushReq) (taskID string, err error) {
pushReq.Settings = &Settings{TTL: &g.taskIDTTL}
taskID, err = g.GetTaskID(ctx, token, pushReq)
if err != nil {
return
}
err = g.cache.SetGetuiTaskID(ctx, taskID, g.tokenExpireTime)
if err != nil {
return
}
return token, nil
}