新分支/第一次

.gitignore

+config.yaml
+backend/files
\ No newline at end of file

README.md

-# pastebin
-
-
-
-## Getting started
-
-To make it easy for you to get started with GitLab, here's a list of recommended next steps.
-
-Already a pro? Just edit this README.md and make it your own. Want to make it easy? [Use the template at the bottom](#editing-this-readme)!
-
-## Add your files
-
-- [ ] [Create](https://docs.gitlab.com/ee/user/project/repository/web_editor.html#create-a-file) or [upload](https://docs.gitlab.com/ee/user/project/repository/web_editor.html#upload-a-file) files
-- [ ] [Add files using the command line](https://docs.gitlab.com/ee/gitlab-basics/add-file.html#add-a-file-using-the-command-line) or push an existing Git repository with the following command:
-
-```
-cd existing_repo
-git remote add origin http://xlab.zju.edu.cn/git/chenhan/pastebin.git
-git branch -M main
-git push -uf origin main
-```
-
-## Integrate with your tools
-
-- [ ] [Set up project integrations](http://xlab.zju.edu.cn/git/chenhan/pastebin/-/settings/integrations)
-
-## Collaborate with your team
-
-- [ ] [Invite team members and collaborators](https://docs.gitlab.com/ee/user/project/members/)
-- [ ] [Create a new merge request](https://docs.gitlab.com/ee/user/project/merge_requests/creating_merge_requests.html)
-- [ ] [Automatically close issues from merge requests](https://docs.gitlab.com/ee/user/project/issues/managing_issues.html#closing-issues-automatically)
-- [ ] [Enable merge request approvals](https://docs.gitlab.com/ee/user/project/merge_requests/approvals/)
-- [ ] [Automatically merge when pipeline succeeds](https://docs.gitlab.com/ee/user/project/merge_requests/merge_when_pipeline_succeeds.html)
-
-## Test and Deploy
-
-Use the built-in continuous integration in GitLab.
-
-- [ ] [Get started with GitLab CI/CD](https://docs.gitlab.com/ee/ci/quick_start/index.html)
-- [ ] [Analyze your code for known vulnerabilities with Static Application Security Testing(SAST)](https://docs.gitlab.com/ee/user/application_security/sast/)
-- [ ] [Deploy to Kubernetes, Amazon EC2, or Amazon ECS using Auto Deploy](https://docs.gitlab.com/ee/topics/autodevops/requirements.html)
-- [ ] [Use pull-based deployments for improved Kubernetes management](https://docs.gitlab.com/ee/user/clusters/agent/)
-- [ ] [Set up protected environments](https://docs.gitlab.com/ee/ci/environments/protected_environments.html)
-
-***
-
-# Editing this README
-
-When you're ready to make this README your own, just edit this file and use the handy template below (or feel free to structure it however you want - this is just a starting point!). Thank you to [makeareadme.com](https://www.makeareadme.com/) for this template.
-
-## Suggestions for a good README
-Every project is different, so consider which of these sections apply to yours. The sections used in the template are suggestions for most open source projects. Also keep in mind that while a README can be too long and detailed, too long is better than too short. If you think your README is too long, consider utilizing another form of documentation rather than cutting out information.
-
-## Name
-Choose a self-explaining name for your project.
-
-## Description
-Let people know what your project can do specifically. Provide context and add a link to any reference visitors might be unfamiliar with. A list of Features or a Background subsection can also be added here. If there are alternatives to your project, this is a good place to list differentiating factors.
-
-## Badges
-On some READMEs, you may see small images that convey metadata, such as whether or not all the tests are passing for the project. You can use Shields to add some to your README. Many services also have instructions for adding a badge.
-
-## Visuals
-Depending on what you are making, it can be a good idea to include screenshots or even a video (you'll frequently see GIFs rather than actual videos). Tools like ttygif can help, but check out Asciinema for a more sophisticated method.
-
-## Installation
-Within a particular ecosystem, there may be a common way of installing things, such as using Yarn, NuGet, or Homebrew. However, consider the possibility that whoever is reading your README is a novice and would like more guidance. Listing specific steps helps remove ambiguity and gets people to using your project as quickly as possible. If it only runs in a specific context like a particular programming language version or operating system or has dependencies that have to be installed manually, also add a Requirements subsection.
-
-## Usage
-Use examples liberally, and show the expected output if you can. It's helpful to have inline the smallest example of usage that you can demonstrate, while providing links to more sophisticated examples if they are too long to reasonably include in the README.
-
-## Support
-Tell people where they can go to for help. It can be any combination of an issue tracker, a chat room, an email address, etc.
-
-## Roadmap
-If you have ideas for releases in the future, it is a good idea to list them in the README.
-
-## Contributing
-State if you are open to contributions and what your requirements are for accepting them.
-
-For people who want to make changes to your project, it's helpful to have some documentation on how to get started. Perhaps there is a script that they should run or some environment variables that they need to set. Make these steps explicit. These instructions could also be useful to your future self.
-
-You can also document commands to lint the code or run tests. These steps help to ensure high code quality and reduce the likelihood that the changes inadvertently break something. Having instructions for running tests is especially helpful if it requires external setup, such as starting a Selenium server for testing in a browser.
-
-## Authors and acknowledgment
-Show your appreciation to those who have contributed to the project.
-
-## License
-For open source projects, say how it is licensed.
-
-## Project status
-If you have run out of energy or time for your project, put a note at the top of the README saying that development has slowed down or stopped completely. Someone may choose to fork your project or volunteer to step in as a maintainer or owner, allowing your project to keep going. You can also make an explicit request for maintainers.

backend/.gitignore

+.idea/**
+conf.yaml
+docs/**
\ No newline at end of file

backend/app/controller/interface.go

+package controller
+
+import (
+	"net"
+	"net/http"
+	"pastebin_backend/app/response"
+
+	//"error"
+	"github.com/labstack/echo/v4"
+
+	//"encoding/json"
+	"fmt"
+	"io"
+	"os"
+	//"github.com/google/uuid"
+	//"github.com/go-playground/validator"
+	//"github.com/sirupsen/logrus"
+)
+
+type File struct {
+	FileName   string `json:"fileName"`
+	FileType   string `json:"fileType"`
+	Expiration int    `json:"expiration"`
+	User       string `json:"user"`
+	Passwd     string `json:"passwd"`
+	//Content string `json:"content"`
+}
+
+type FileRe struct {
+	FileName string `json:"fileName"`
+	FileType string `json:"fileType"`
+}
+
+type pass struct {
+	User   string `json:"user"`
+	Passwd string `json:"passwd"`
+}
+
+type Text struct {
+	text string `json:"text"`
+}
+
+func Ping(c echo.Context) error {
+	// just a demo
+	return response.SendResponse(c, http.StatusOK, "", "pong!")
+}
+
+// 通过用户名密码来设置cookie
+func AskPasswd(c echo.Context) error {
+	//
+	info := new(pass)
+	if err := c.Bind(info); err != nil {
+		return err
+	}
+	if info.Passwd == "" || info.User == "" {
+		//return c.String(http.StatusBadRequest, "请输入用户名和密码")
+		c.String(http.StatusBadRequest, "请输入用户名和密码")
+		return echo.ErrBadRequest
+	}
+
+	// 在数据库中查找，若user存在且密码一样，重置cookie有效期
+	// user存在但密码不一样，密码错误或用户名已存在
+	// user不存在，数据库中加记录并生成一个新的cookie
+
+	SetCookie(c, info)
+	return c.String(http.StatusOK, "cookie设置") //
+	//return nil
+}
+
+// 设置cookie名为user，根据数据库分配uuid
+func SetCookie(c echo.Context, info *pass) error {
+	/*uuid, err := uuid.NewUUID()
+	if err != nil {
+		logrus.Fatal(err)
+	}
+
+	cookie := new(http.Cookie)
+	cookie.Name = "user" // 标识为user
+	//cookie.Value = string(uuid)  // 通过uuid和数据库，确定user是谁
+	cookie.Value = "tmp"
+	cookie.Path = "/"
+	// cookie有效期为3600秒
+	cookie.MaxAge = 3600
+
+	// 在数据库中加入 cookie记录
+
+	// 设置cookie
+	c.SetCookie(cookie)*/
+	return c.String(http.StatusOK, "cookie设置")
+}
+
+// 接收浏览器发来的文件，把文件储存在.\files\目录下
+// 成功则返回上传成功，否则报错
+func RecvFile(c echo.Context) error {
+	file, err := c.FormFile("file")
+	if err != nil {
+		return err
+	}
+
+	// 打开用户上传的文件
+	src, err := file.Open()
+	if err != nil {
+		return err
+	}
+	defer src.Close()
+
+	info := new(File)
+	if err = c.Bind(info); err != nil {
+		return err
+	}
+	// 创建目标文件，就是我们打算把用户上传的文件保存到什么地方
+	// file.Filename 参数指的是我们以用户上传的文件名，作为目标文件名，也就是服务端保存的文件名跟用户上传的文件名一样
+	if info.FileType == "" {
+		info.FileType = "txt"
+	}
+	filePath := "./files/" + info.FileType + "/" + file.Filename
+	dst, err := os.Create(filePath)
+	//dst, err := os.Create(file.Filename)
+
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+	defer dst.Close()
+
+	// 这里将用户上传的文件复制到服务端的目标文件
+	if _, err = io.Copy(dst, src); err != nil {
+		return err
+	}
+
+	return c.HTML(http.StatusOK, fmt.Sprintf("<p>文件上传成功: %s</p>", file.Filename))
+}
+
+// 根据用户请求的文件名（不带后缀）和文件类型，返回对应文件的链接
+func SendFile(c echo.Context) error {
+	info := new(FileRe)
+	if err := c.Bind(info); err != nil {
+		return err
+	}
+	if info.FileType == "" {
+		info.FileType = "txt"
+	}
+	filePath := "./files/" + info.FileType + "/" + info.FileName + "." + info.FileType
+	src, err := os.Open(filePath)
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+	defer func() {
+		src.Close()
+	}()
+	data := make([]byte, 8*1024*1024)
+	count, err := src.Read(data)
+	//return response.SendResponse(c, http.StatusOK, "", "pong!")
+	count = count
+	// 信息隐去
+	c.JSON(http.StatusOK, info)
+	return response.SendResponse(c, http.StatusOK, "msg", string(data))
+	//return c.HTML(http.StatusOK, fmt.Sprintf("<p>文件上传成功: %s</p>", file.Filename))w
+	//return nil
+}
+
+func RecvText(c echo.Context) error {
+	text := new(Text)
+	if err := c.Bind(text); err != nil {
+		fmt.Println(err)
+		return err
+	}
+	//return text.text
+	return nil
+}
+
+func SendText(conn net.Conn, text Text) error {
+	buf := []byte(text.text)
+	_, err := conn.Write(buf[:])
+	if err != nil {
+		fmt.Println(err)
+		return err
+	}
+	return nil
+}
+
+// 如果没有对应文件夹就建立
+func fileTypeJudge(fileType string) error {
+	return nil
+}

backend/app/init.go

+package app
+
+import (
+	"pastebin_backend/utils"
+	//"net/http"
+	"github.com/labstack/echo/v4"
+	"github.com/sirupsen/logrus"
+)
+
+var e *echo.Echo
+
+func InitWebFramework() {
+	e = echo.New()
+	e.HideBanner = true
+	addRoutes()
+	e.Validator = &utils.CustomValidator{}
+
+	logrus.Info("echo framework initialized")
+}
+
+
+
+
+func StartServer() {
+    e.Logger.Fatal(e.Start("127.0.0.1:80"))  // 启动服务，注意默认端口80不能省略
+	//e.Logger.Fatal(e.Start("pastebin:80"))  // 启动服务，注意默认端口80不能省略,需要域名解析，config
+}
+
+
+

backend/app/middleware/login.go

+package middleware
+
+import (
+	"github.com/labstack/echo/v4"
+	//"http/net"
+	"pastebin_backend/app/controller"
+)
+
+func Auth(next echo.HandlerFunc) echo.HandlerFunc {
+	return func(c echo.Context) error {
+		//c.Bind("User")
+		cookie, _ := c.Cookie("user")
+		if cookie == nil {
+			err := controller.AskPasswd(c)
+			if err != nil {
+				return nil
+			}
+		}
+		//c.Set("uid", cookie.Value)
+		c.Set("uid", 114514)
+		return next(c)
+	}
+}
+
+/*
+func CookieAuth(c echo.Context) error{
+	cookie, err := c.Cookie()
+
+	if err != nil {
+		return err
+	}
+
+}*/

backend/app/response/reponse.go

+package response
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo/v4"
+)
+
+type Response struct {
+	Code int         `json:"code"`
+	Msg  string      `json:"msg"`
+	Data interface{} `json:"data"`
+}
+
+func SendResponse(c echo.Context, code int, msg string, data ...interface{}) error{
+	return c.JSON(http.StatusOK, Response{
+		Code: code,
+		Msg:  msg,
+		Data: data,
+	})
+}

backend/app/routes.go

+package app
+
+import (
+	"pastebin_backend/app/controller"
+	"pastebin_backend/app/middleware"
+	//"pastebin_backend/model"
+)
+
+func addRoutes() {
+	api := e.Group("api")
+	api.Use(middleware.Auth)
+	api.GET("/ping", controller.Ping)
+	api.POST("/passwd",controller.AskPasswd) // 密码，返回cookie
+	api.POST("/file/recv",controller.RecvFile)//  接收文件
+	api.POST("/file/send",controller.SendFile)
+	api.POST("/text/recv",controller.RecvText)
+	api.POST("/text/send",controller.RecvText)
+}

backend/go.mod

+module pastebin_backend
+
+go 1.19
+
+require (
+	github.com/go-playground/validator/v10 v10.11.1
+	github.com/google/uuid v1.1.2
+	github.com/labstack/echo/v4 v4.9.1
+	github.com/sirupsen/logrus v1.9.0
+	github.com/spf13/viper v1.14.0
+	gorm.io/driver/mysql v1.4.4
+	gorm.io/gorm v1.24.2
+)
+
+require (
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/go-playground/locales v0.14.0 // indirect
+	github.com/go-playground/universal-translator v0.18.0 // indirect
+	github.com/go-sql-driver/mysql v1.6.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/jinzhu/inflection v1.0.0 // indirect
+	github.com/jinzhu/now v1.1.5 // indirect
+	github.com/labstack/gommon v0.4.0 // indirect
+	github.com/leodido/go-urn v1.2.1 // indirect
+	github.com/magiconair/properties v1.8.6 // indirect
+	github.com/mattn/go-colorable v0.1.12 // indirect
+	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/mitchellh/mapstructure v1.5.0 // indirect
+	github.com/pelletier/go-toml v1.9.5 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.5 // indirect
+	github.com/spf13/afero v1.9.2 // indirect
+	github.com/spf13/cast v1.5.0 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/subosito/gotenv v1.4.1 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.1 // indirect
+	golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e // indirect
+	golang.org/x/net v0.0.0-20221014081412-f15817d10f9b // indirect
+	golang.org/x/sys v0.0.0-20220908164124-27713097b956 // indirect
+	golang.org/x/text v0.4.0 // indirect
+	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

backend/main.go

+// @title        Golang Service Template
+// @version      0.1
+// @description  Golang back-end service template, get started with back-end projects quickly
+// @BasePath     /api
+
+package main
+
+import (
+	"pastebin_backend/app"
+	//"pastebin_backend/app/controller"
+	"pastebin_backend/model"
+
+	"github.com/sirupsen/logrus"
+)
+
+func main() {
+	logrus.SetReportCaller(true)
+	model.Init()
+	app.InitWebFramework()
+	app.StartServer()
+	//controller.BuildSocket()
+	//controller.RecvFile()
+}

backend/model/init.go

+package model
+
+import (
+	"time"
+
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+)
+
+var DB *gorm.DB
+
+func Init() {}
+
+func Init_() {
+	connectDatabase()
+	var err error
+	// insert auto-table
+	err = DB.AutoMigrate(&Users{})
+	if err != nil {
+		logrus.Fatal(err)
+	}
+	err = DB.AutoMigrate(&content{})
+	if err != nil {
+		logrus.Fatal(err)
+	}
+}
+
+func connectDatabase() {
+	// config
+	viper.SetConfigName("config")
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath("./")
+	err := viper.ReadInConfig()
+	if err != nil {
+		logrus.Panic(err)
+	}
+	// connect to database
+	logInfo := viper.GetStringMapString("mysql")
+	sqlInfo := logInfo["user"] + ":" + logInfo["password"] +
+		"@(localhost)/" + logInfo["database"] + "?charset=utf8mb4&parseTime=True&loc=Local"
+	DB, err = gorm.Open(mysql.Open(sqlInfo), &gorm.Config{})
+	if err != nil {
+		logrus.Panic(err)
+	}
+}
+
+// Backcheck content through link
+func findlink(name string) string {
+	var p Users
+	err := DB.First(&p, "Route = ?", name)
+	if err != nil {
+		logrus.Error(err)
+	}
+	return p.Name
+}
+
+// save text information
+func savetext(_username string, s string, t1 time.Time) {
+	p := Users{
+		Username: _username,
+		Name:     s,
+		Date:     time.Now(),
+		Time1:    t1,
+	}
+	DB.Create(&p)
+	p1 := content{
+		Name: s,
+		Time: 0,
+	}
+	DB.Create(&p1)
+}
+
+// Check whether the number of visits exceeds the threshold
+func checkt(s string) {
+	var p content
+	err := DB.First(&p, "Route = ?", s)
+	if err != nil {
+		logrus.Error(err)
+	}
+	p.Time++
+	if p.Time > 200 {
+		DB.Delete(&p)
+	}
+}
+
+// Check whether the number of visits exceeds the time limit
+func checkt1(s string) {
+	var p []Users
+	DB.Find(&p)
+	for i := 0; i < len(p); i++ {
+		t := time.Now()
+		if p[i].Time1.After(t) {
+			DB.Delete(&p)
+		}
+	}
+}

backend/model/model.go

+package model
+
+import (
+   "time"
+   "gorm.io/gorm"
+)
+
+type Users struct {
+    gorm.Model
+    Username   string
+    Passwd string
+    Name string
+    Date time.Time
+    Size uint
+    Route string
+    Time1 time.Time
+}
+
+type content struct {
+    gorm.Model
+    Name string
+    Time uint
+}
\ No newline at end of file

backend/utils/validator.go

+package utils
+
+import (
+	"sync"
+
+	"github.com/go-playground/validator/v10"
+)
+
+type CustomValidator struct {
+	once     sync.Once
+	validate *validator.Validate
+}
+
+func (c *CustomValidator) Validate(i interface{}) error {
+	c.lazyInit()
+	return c.validate.Struct(i)
+}
+
+func (c *CustomValidator) lazyInit() {
+	c.once.Do(func() {
+		c.validate = validator.New()
+	})
+}

新建文本文档.txt

+返回链接
\ No newline at end of file