299 lines
8.1 KiB
Go
299 lines
8.1 KiB
Go
package routers
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import (
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"crypto/md5"
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"encoding/json"
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"fmt"
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"image"
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_ "image/gif"
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_ "image/jpeg"
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_ "image/png"
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"regexp"
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"io/ioutil"
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"log"
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"main/configs"
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"main/models"
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"main/utils"
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"net/http"
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"os"
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"github.com/google/uuid"
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"github.com/gorilla/mux"
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"github.com/gorilla/websocket"
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)
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var images_websocket_manager = models.NewWebSocketManager()
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func ImagesGet(w http.ResponseWriter, r *http.Request) {
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// websocket 推理图像
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if r.Header.Get("Upgrade") == "websocket" {
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upgrader := websocket.Upgrader{}
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upgrader.CheckOrigin = func(r *http.Request) bool {
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return true
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}
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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log.Println(err)
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return
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}
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defer conn.Close()
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// 读取任务信息
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task := r.URL.Query().Get("task")
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if task == "" {
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w.WriteHeader(http.StatusBadRequest)
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w.Write([]byte("task 参数不能为空"))
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return
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}
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// 从数据库中读取任务信息
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var image_list []models.Image
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if err := configs.ORMDB().Where("task = ?", task).Find(&image_list).Error; err != nil {
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log.Println(err)
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return
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}
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if len(image_list) == 0 {
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w.WriteHeader(http.StatusBadRequest)
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w.Write([]byte("任务不存在或已结束"))
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return
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}
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log.Println("任务编号:", task, "任务数量:", len(image_list))
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// 加入连接池
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images_websocket_manager.AddConnection(conn, task)
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defer images_websocket_manager.RemoveConnection(conn)
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for {
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_, msg, err := conn.ReadMessage()
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if err != nil {
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log.Println(err)
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return
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}
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log.Println(string(msg))
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if string(msg) == "close" {
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break
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}
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}
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return
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}
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var listview models.ListView
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listview.Page = utils.ParamInt(r.URL.Query().Get("page"), 1)
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listview.PageSize = utils.ParamInt(r.URL.Query().Get("pageSize"), 10)
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var image_list []models.Image
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db := configs.ORMDB()
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db.Offset((listview.Page - 1) * listview.PageSize).Limit(listview.PageSize).Find(&image_list)
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for _, image := range image_list {
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listview.List = append(listview.List, image)
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}
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db.Model(&models.Image{}).Count(&listview.Total)
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listview.Next = listview.Page*listview.PageSize < int(listview.Total)
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listview.WriteJSON(w)
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}
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func ImagesPost(w http.ResponseWriter, r *http.Request) {
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models.AccountRead(w, r, func(account *models.Account) {
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// 通过模型推理生成图像, 为图像标记任务批次
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if match, _ := regexp.MatchString("application/json", r.Header.Get("Content-Type")); match {
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template := &struct {
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FromImage int `json:"from_image"` // 来源图片(图生图时使用)
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Prompt string `json:"prompt"` // 提示词
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NegativePrompt string `json:"negative_prompt"` // 负面提示词
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NumInferenceSteps int `json:"num_inference_steps"` // 推理步数
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GuidanceScale float32 `json:"guidance_scale"` // 引导比例
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Scheduler string `json:"scheduler"` // 调度器
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Seed string `json:"seed"` // 随机种子(单张图生成时使用)
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Number int `json:"number"` // 生成数量
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ModelID int `json:"model_id"` // 模型ID
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}{}
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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log.Println(err)
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return
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}
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defer r.Body.Close()
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if err = json.Unmarshal(body, &template); err != nil {
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log.Println(err)
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return
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}
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// 输入检查
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if template.Number <= 0 {
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template.Number = 1
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}
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if template.NumInferenceSteps <= 0 {
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template.NumInferenceSteps = 20
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}
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if template.GuidanceScale <= 0 {
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template.GuidanceScale = 1
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}
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if template.GuidanceScale > 20 {
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template.GuidanceScale = 20
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}
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if template.Scheduler == "" {
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template.Scheduler = "DDIM"
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}
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if template.ModelID <= 0 {
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w.WriteHeader(http.StatusBadRequest)
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w.Write([]byte("model_id 参数不能为空"))
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return
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}
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// 从数据库中读取模型信息
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var model models.Model = models.Model{ID: template.ModelID}
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if err := configs.ORMDB().First(&model).Error; err != nil {
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w.WriteHeader(http.StatusBadRequest)
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w.Write([]byte("模型不存在"))
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return
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}
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// 直接创建一组图片
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var image_list []models.Image
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var task string = uuid.New().String()
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for i := 0; i < template.Number; i++ {
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var image models.Image
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image.UserID = account.ID
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image.Task = task
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image.Status = "queued"
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image.FromImage = template.FromImage
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image.Prompt = template.Prompt
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image.NegativePrompt = template.NegativePrompt
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image.NumInferenceSteps = template.NumInferenceSteps
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image.GuidanceScale = template.GuidanceScale
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image.Scheduler = template.Scheduler
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image.Seed = template.Seed
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image_list = append(image_list, image)
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}
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// 推理图像
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go model.Inference([]models.Image{}, func(img models.Image) {
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log.Println("推理完成")
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images_websocket_manager.NotifyTaskChange(task, img)
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})
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// 存储图片信息到数据库
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if err := configs.ORMDB().Create(&image_list).Error; err != nil {
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log.Println(err)
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return
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}
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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json.NewEncoder(w).Encode(image_list)
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return
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}
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// 接收上傳的圖片文件, 僅限一張
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file, file_header, err := r.FormFile("file")
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if err != nil {
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log.Println(err)
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return
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}
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defer file.Close()
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// 圖片寬高
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imgData, format, err := image.Decode(file)
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if err != nil {
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log.Println(err)
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return
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}
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fmt.Println(format, imgData.Bounds().Dx(), imgData.Bounds().Dy())
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// 將文件指針移回開頭
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if _, err := file.Seek(0, 0); err != nil {
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log.Println(err)
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return
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}
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// 读取文件内容
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content, err := ioutil.ReadAll(file)
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if err != nil {
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log.Println(err)
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return
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}
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// 整理文件信息
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var img models.Image
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img.Name = file_header.Filename
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img.Size = int(file_header.Size) // 數據大小
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img.Hash = fmt.Sprintf("%x", md5.Sum(content)) // 计算哈希
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img.Type = file_header.Header.Get("Content-Type") // 文件類型
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img.Path = fmt.Sprintf("data/images/%s.%s", img.Hash, format) // 存儲路徑
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img.Width = imgData.Bounds().Dx() // 圖片寬度
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img.Height = imgData.Bounds().Dy() // 圖片高度
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img.Format = format // 圖片格式
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img.UserID = account.ID // 用戶ID
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// 先檢查 data/images 目錄是否存在
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if _, err := ioutil.ReadDir("data/images"); err != nil {
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if err := os.Mkdir("data/images", 0777); err != nil {
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log.Println(err)
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return
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}
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}
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// 將文件存儲到本地 data/images 目錄下
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if err := ioutil.WriteFile(img.Path, content, 0666); err != nil {
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log.Println(err)
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return
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}
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// 存儲圖片信息到數據庫
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if err := configs.ORMDB().Create(&img).Error; err != nil {
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log.Println(err)
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return
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}
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.Write(utils.ToJSON(img))
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})
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}
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func ImagesItemGet(w http.ResponseWriter, r *http.Request) {
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image := models.Image{ID: utils.ParamInt(mux.Vars(r)["id"], 0)}
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if err := configs.ORMDB().First(&image).Error; err != nil {
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log.Println(err)
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return
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}
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.Write(utils.ToJSON(image))
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}
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func ImagesItemPatch(w http.ResponseWriter, r *http.Request) {
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image := models.Image{}
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body, err := ioutil.ReadAll(r.Body)
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if err != nil {
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log.Println(err)
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return
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}
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defer r.Body.Close()
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if err = json.Unmarshal(body, &image); err != nil {
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log.Println(err)
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return
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}
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image.ID = utils.ParamInt(mux.Vars(r)["id"], 0)
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if err := configs.ORMDB().Model(&image).Updates(image).Error; err != nil {
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log.Println(err)
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return
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}
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.Write(utils.ToJSON(image))
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}
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func ImagesItemDelete(w http.ResponseWriter, r *http.Request) {
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image := models.Image{ID: utils.ParamInt(mux.Vars(r)["id"], 0)}
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if err := configs.ORMDB().Delete(&image).Error; err != nil {
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log.Println(err)
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return
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}
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w.Header().Set("Content-Type", "application/json; charset=utf-8")
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w.Write(utils.ToJSON(image))
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}
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