319 lines
11 KiB
Go
319 lines
11 KiB
Go
package textaudit
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import (
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"service/api/consts"
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textauditproto "service/api/proto/textaudit/proto"
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textaudittaskproto "service/api/proto/textaudittask/proto"
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"service/bizcommon/util"
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"service/dbstruct"
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"service/library/logger"
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textaudit "github.com/alibabacloud-go/imageaudit-20191230/v3/client"
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teautils "github.com/alibabacloud-go/tea-utils/v2/service"
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"github.com/alibabacloud-go/tea/tea"
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goproto "google.golang.org/protobuf/proto"
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"github.com/gin-gonic/gin"
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)
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// 文字审核主逻辑
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func executeTextAuditTasks(tasks []*TextAuditTaskControlBlock, batchId string) (err error) {
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if len(tasks) == 0 {
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return
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}
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logger.Info("Text audit batch started, batchId : %v, task number : %v\n", batchId, len(tasks))
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// 1.创建请求
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req, actionMap, err := createScanTextRequest(tasks, batchId)
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if err != nil {
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logger.Info("Create Scan TextRequest fail: %v", err)
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handleBatchError(batchId, err)
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return
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}
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// 2.调用阿里的服务,收到应答
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runtime := &teautils.RuntimeOptions{
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ConnectTimeout: tea.Int(30000),
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}
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_result, err := defaultTextAuditClient.ScanTextWithOptions(req, runtime)
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if err != nil {
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logger.Error("ScanTextWithOptions fail : %v", err)
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handleBatchError(batchId, err)
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return
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}
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// 3.处理应答
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err = handleScanTextResponse(_result, batchId, tasks, actionMap)
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return
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}
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func createScanTextRequest(tasks []*TextAuditTaskControlBlock, batchId string) (request *textaudit.ScanTextRequest, actionMap map[string]*TextAuditAction, err error) {
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actionMap = make(map[string]*TextAuditAction) // 动作Id号-action的map
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// 1.打包文字，转成ScanTextRequest
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reqTasks := make([]*textaudit.ScanTextRequestTasks, 0)
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for _, task := range tasks {
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// 写map
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if actionMap[task.ActionId] == nil { // 写入actionMap
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actionMap[task.ActionId] = NewTextAuditAction()
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}
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actionMap[task.ActionId].Record(task)
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// 打包
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reqTasks = append(reqTasks, &textaudit.ScanTextRequestTasks{
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Content: task.TextAuditTask.AuditedText,
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})
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}
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scanLabels := make([]*textaudit.ScanTextRequestLabels, len(labels))
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for i := range scanLabels {
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scanLabels[i] = &textaudit.ScanTextRequestLabels{
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Label: goproto.String(labels[i]),
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}
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}
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request = &textaudit.ScanTextRequest{
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Labels: scanLabels,
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Tasks: reqTasks,
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}
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logger.Info("本次打包:%v", reqTasks)
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return
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}
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func handleScanTextResponse(resp *textaudit.ScanTextResponse, batchId string, tasks []*TextAuditTaskControlBlock, actionMap map[string]*TextAuditAction) (err error) {
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results := resp.Body.Data.Elements
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for i, result := range results {
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isActionCompleted := false
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action := &TextAuditAction{}
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// 1.立即在textaudit-textaudit中更新该次审核结果
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pass, err := handleTextAudit(tasks[i].TextAuditTask.TextAuditId, result)
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if err != nil {
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logger.Error("handleTextAudit fail: %v", err)
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}
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// 2.更新任务状态
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tasks[i].IsTaskPassed = pass
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// 3.通过task的actionId，去actionId-[]*task的map查出本批次对该字段的动作链，更新其中关于自己的状态
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isActionCompleted, action = handleTaskAction(tasks[i], actionMap)
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// 4.等待所有动作链元素均已抵达，判定本批次对该字段的操作是否成功
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if isActionCompleted {
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if err = finalizeTask(action); err != nil {
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logger.Error("finalizeTask fail: %v", err)
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}
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}
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}
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return
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}
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func handleTextAudit(id *string, result *textaudit.ScanTextResponseBodyDataElements) (pass bool, err error) {
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ctx := &gin.Context{}
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textaudit := &dbstruct.TextAudit{
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Id: id,
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}
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pass, err = copyScanResultInfo(textaudit, result)
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if err != nil {
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logger.Error("Copy Scan Result Info fail: %v\n", err)
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return
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}
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if err = _DefaultTextAudit.OpUpdate(ctx, &textauditproto.OpUpdateReq{
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TextAudit: textaudit,
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}); err != nil {
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logger.Error("_DefaultTextAudit OpUpdate fail: %v\n", err)
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return
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}
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return
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}
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// 通过task的actionId查出action, 通知该task已完成
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func handleTaskAction(task *TextAuditTaskControlBlock, actionMap map[string]*TextAuditAction) (isActionCompleted bool, action *TextAuditAction) {
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action = actionMap[task.ActionId]
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action.AuditedTaskNum++
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isActionCompleted = action.TaskNum == action.AuditedTaskNum
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return
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}
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// 等待所有动作链元素均已抵达，判定本批次对该字段的操作是否成功
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func finalizeTask(action *TextAuditAction) (err error) {
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lastValidTask := action.TaskChain[0] // 仅在动作链终态不成功时有意义，表示最后一个可以用以回退的失败任务
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lastValidTaskIndex := 0 // 仅在动作链终态不成功时有意义，表示最后一个可以用以回退的失败任务的索引
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passTaskIds := make([]string, 0) // 所有已审核成功的任务的taskId
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expiredTaskIds := make([]string, 0) // 所有已失效任务的taskId，失效任务是指那些前驱任务依然失败的失败任务，这些任务已失去实际意义，不可以用来回退
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statuses := make([]int64, len(action.TaskChain)) // 所有任务的终态状态，成功，回退，或失效
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isActionInPassedStatus := true // 当前动作链是否处于成功中
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for i, task := range action.TaskChain {
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if !task.IsTaskPassed { // 动作链检测到失败任务
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if isActionInPassedStatus { // 若动作链处于成功状态，则这是目前为止，最后一个可以用于回退的任务
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lastValidTask = task
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lastValidTaskIndex = i
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statuses[i] = consts.TextAudit_Rollbacked
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isActionInPassedStatus = false
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} else { // 否则，若动作链处于失败状态，则该任务已失效
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statuses[i] = consts.TextAudit_Expired
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expiredTaskIds = append(expiredTaskIds, util.DerefString(task.TextAuditTask.Id))
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}
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} else { // 若动作链检测到成功任务，则重置动作链任务态，并将最后有效任务标志为失效（它已不再用于回退）
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passTaskIds = append(passTaskIds, util.DerefString(task.TextAuditTask.Id))
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statuses[i] = consts.TextAudit_Passed
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isActionInPassedStatus = true
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if statuses[lastValidTaskIndex] == consts.TextAudit_Rollbacked {
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statuses[lastValidTaskIndex] = consts.TextAudit_Expired
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expiredTaskIds = append(expiredTaskIds, util.DerefString(action.TaskChain[lastValidTaskIndex].TextAuditTask.Id))
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}
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}
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}
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// 判定任务链终态，终态非成功，执行回退操作，记录到数据库中
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if !action.IsPassed() {
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if err = executeRollBack(lastValidTask); err != nil {
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return
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}
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}
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// 更新所有任务状态
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if err = updatePassedTasks(passTaskIds); err != nil {
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return
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}
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if err = updateExpiredTasks(expiredTaskIds); err != nil {
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return
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}
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logger.Info("action statuses : %v", statuses)
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return
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}
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// 将文字审核结果copy到文字审核实体中
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func copyScanResultInfo(textaudit *dbstruct.TextAudit, elements *textaudit.ScanTextResponseBodyDataElements) (pass bool, err error) {
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pass = true
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for _, result := range elements.Results {
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textaudit.Suggestion = result.Suggestion
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textaudit.Label = result.Label
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textaudit.Rate = goproto.Float64(float64(util.DerefFloat32(result.Rate)))
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if util.DerefString(textaudit.Label) == LabelPassed {
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textaudit.Status = goproto.Int64(consts.TextAudit_Passed)
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} else {
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pass = false
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textaudit.Status = goproto.Int64(consts.TextAudit_Rejected)
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for _, detail := range result.Details {
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label := TextAuditLabel(util.DerefString(detail.Label))
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contexts := parseDetailsContexts(detail.Contexts)
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switch label {
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case Spam:
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textaudit.SpamLabelDetails = &contexts
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case Politics:
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textaudit.PoliticsLabelDetails = &contexts
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case Abuse:
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textaudit.AbuseLabelDetails = &contexts
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case Terrorism:
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textaudit.TerrorismLabelDetails = &contexts
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case Porn:
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textaudit.PornLabelDetails = &contexts
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case Flood:
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textaudit.FloodLabelDetails = &contexts
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case Contraband:
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textaudit.ContrabandLabelDetails = &contexts
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case Ad:
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textaudit.AdLabelDetails = &contexts
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}
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}
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}
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}
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return
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}
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func parseDetailsContexts(contexts []*textaudit.ScanTextResponseBodyDataElementsResultsDetailsContexts) []string {
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ctxs := make([]string, len(contexts))
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for i, context := range contexts {
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ctxs[i] = util.DerefString(context.Context)
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}
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return ctxs
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}
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func executeRollBack(lastValidTask *TextAuditTaskControlBlock) (err error) {
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ctx := &gin.Context{}
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if err = lastValidTask.RollbackFunc(); err != nil {
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logger.Error("Roll back taskId:%v fail:%v", util.DerefString(lastValidTask.TextAuditTask.Id), err)
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if err = _DefaultTextAuditTask.OpUpdate(ctx, &textaudittaskproto.OpUpdateReq{
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TextAuditTask: &dbstruct.TextAuditTask{
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Id: lastValidTask.TextAuditTask.Id,
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Status: goproto.Int64(consts.TextAudit_Failed),
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Remarks: goproto.String("任务审核失败，回退失败，请联系管理员排查"),
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},
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}); err != nil {
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logger.Error("_DefaultTextAuditTask OpUpdate fail: %v\n", err)
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}
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return
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}
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if err = _DefaultTextAuditTask.OpUpdate(ctx, &textaudittaskproto.OpUpdateReq{
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TextAuditTask: &dbstruct.TextAuditTask{
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Id: lastValidTask.TextAuditTask.Id,
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Status: goproto.Int64(consts.TextAudit_Rollbacked),
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Remarks: goproto.String("任务审核失败，已将字段回退至之前的版本"),
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},
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}); err != nil {
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logger.Error("_DefaultTextAuditTask OpUpdate fail: %v\n", err)
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}
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return
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}
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func updatePassedTasks(passTaskIds []string) (err error) {
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ctx := &gin.Context{}
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if err = _DefaultTextAuditTask.OpUpdateByIds(ctx, &textaudittaskproto.OpUpdateByIdsReq{
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TextAuditTask: &dbstruct.TextAuditTask{
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Status: goproto.Int64(consts.TextAudit_Passed),
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},
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Ids: passTaskIds,
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}); err != nil {
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logger.Error("_DefaultTextAuditTask OpUpdateByIds fail: %v\n", err)
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return
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}
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return
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}
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func updateExpiredTasks(expiredTaskIds []string) (err error) {
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ctx := &gin.Context{}
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if err = _DefaultTextAuditTask.OpUpdateByIds(ctx, &textaudittaskproto.OpUpdateByIdsReq{
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TextAuditTask: &dbstruct.TextAuditTask{
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Status: goproto.Int64(consts.TextAudit_Expired),
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},
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Ids: expiredTaskIds,
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}); err != nil {
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logger.Error("_DefaultTextAuditTask OpUpdateByIds fail: %v\n", err)
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return
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}
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return
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}
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func handleBatchError(batchId string, _err error) (err error) {
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logger.Info("All tasks of this batchId: %v has failed, rolling back...", batchId)
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ctx := &gin.Context{}
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if err = _DefaultTextAudit.OpUpdateByBatchId(ctx, batchId, &dbstruct.TextAudit{
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Status: goproto.Int64(consts.ImageAudit_ServiceFailed),
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Remarks: goproto.String("批次任务失败，原因详见task表"),
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}); err != nil {
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logger.Error("_DefaultTextAudit OpUpdateByBatchId fail: %v\n", err)
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return
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}
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if err = _DefaultTextAuditTask.OpUpdateByBatchId(ctx, batchId, &dbstruct.TextAuditTask{
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Status: goproto.Int64(consts.ImageAudit_ServiceFailed),
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Remarks: goproto.String(_err.Error()),
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}); err != nil {
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logger.Error("_DefaultTextAuditTask OpUpdateByBatchId fail: %v\n", err)
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return
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}
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return
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}
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