初始化项目结构和依赖

初始化项目结构，包括添加.gitignore、go.mod、go.sum、LICENSE、README.md等文件，并实现了一个基于Gin框架的HTTP-Demo程序。该程序主要用于打印一些网络信息，便于测试。

.gitignore

@@ -0,0 +1,13 @@
+.idea
+etc
+tmp
+cert
+
+*.exe
+*.out
+
+.DS_Store
+
+testdata
+
+pkg

LICENSE

@@ -0,0 +1,8 @@
+The MIT License (MIT)
+Copyright © 2024 宋子桓（Song Zihuan）
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -0,0 +1,10 @@
+# HTTP-Demo
+基于Go+Gin框架的HTTP-Demo程序。
+
+主要用于打印一些网络信息，便于测试。
+
+## 配置
+默认监听端口`:3366`，可通过`--address`和`-a`参数更改。
+
+## 协议
+本软件基于[MIT LICENSE](./LICENSE)协议发布。

VERSION

@@ -0,0 +1 @@
+v0.1.0

go.mod

@@ -0,0 +1,34 @@
+module github.com/SongZihuan/Http-Demo
+
+go 1.23.2
+
+require github.com/gin-gonic/gin v1.10.0
+
+require (
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.3 // indirect
+	github.com/gin-contrib/sse v0.1.0 // indirect
+	github.com/go-playground/locales v0.14.1 // indirect
+	github.com/go-playground/universal-translator v0.18.1 // indirect
+	github.com/go-playground/validator/v10 v10.20.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)

go.sum

@@ -0,0 +1,89 @@
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resource.go

@@ -0,0 +1,8 @@
+package resource
+
+import (
+	_ "embed"
+)
+
+//go:embed VERSION
+var Version string

src/cmd/v1/main.go

@@ -0,0 +1,10 @@
+package main
+
+import (
+	"github.com/SongZihuan/Http-Demo/src/mainfunc"
+	"os"
+)
+
+func main() {
+	os.Exit(mainfunc.MainV1())
+}

src/mainfunc/v1.go

@@ -0,0 +1,198 @@
+package mainfunc
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	resource "github.com/SongZihuan/Http-Demo"
+	"github.com/gin-gonic/gin"
+	"net/http"
+	"os"
+	"os/signal"
+	"strings"
+	"syscall"
+	"time"
+)
+
+const (
+	RequestsForwarded       = "Forwarded"
+	RequestsXForwardedFor   = "X-Forwarded-For"
+	RequestsXForwardedHost  = "X-Forwarded-Host"
+	RequestsXForwardedProto = "X-Forwarded-Proto"
+	RequestsXMessage        = "X-Message"
+	RequestsXVia            = "Via"
+)
+
+var address string
+var engine *gin.Engine = nil
+var server *http.Server = nil
+
+func MainV1() (exitcode int) {
+	func() {
+		defer func() {
+			err := recover()
+			if err != nil {
+				fmt.Println("option parse error")
+				exitcode = 1
+				return
+			}
+		}()
+
+		flag.StringVar(&address, "address", ":3366", "http server address")
+		flag.StringVar(&address, "a", ":3366", "http server address")
+		flag.Parse()
+	}()
+
+	gin.SetMode(gin.ReleaseMode)
+
+	engine = gin.New()
+	engine.Use(gin.Logger(), gin.Recovery())
+
+	engine.GET("/", Handler)
+	engine.GET("/ip", HandlerRemoteIP)
+	engine.GET("/client/ip", HandlerClientIP)
+	engine.GET("/timestamp", HandlerTimestamp)
+	engine.GET("/datetime", HandlerDatetime)
+	engine.GET("/hello", HandlerHelloWorld)
+	engine.GET("/empty", HandlerEmpty)
+	engine.NoRoute(HandlerMethodNotFound)
+	engine.NoMethod(HandlerMethodNotAllowed)
+
+	server = &http.Server{
+		Addr:    address,
+		Handler: engine,
+	}
+
+	var sigchan = make(chan os.Signal)
+	var stopchan = make(chan error)
+
+	err := initSignal(sigchan)
+	if err != nil {
+		fmt.Printf("Listen signal fail: %s\n", err.Error())
+		return 1
+	}
+
+	go func() {
+		fmt.Printf("server start at %s\n", address)
+		err := server.ListenAndServe()
+		if err != nil {
+			stopchan <- err
+		}
+	}()
+
+	select {
+	case <-sigchan:
+		fmt.Printf("Server closed: safe\n")
+		return 0
+	case err := <-stopchan:
+		if errors.Is(err, http.ErrServerClosed) {
+			fmt.Printf("Server closed: safe\n")
+			return 0
+		}
+		fmt.Printf("Server error closed: %s\n", err.Error())
+		return 1
+	}
+}
+
+func initSignal(sigchan chan os.Signal) (err error) {
+	defer func() {
+		if r := recover(); r != nil {
+			err = fmt.Errorf("init signal error: %v", r)
+		}
+	}()
+
+	signal.Notify(sigchan, syscall.SIGINT, syscall.SIGTERM)
+	return nil
+}
+
+func Handler(c *gin.Context) {
+	nowTime := time.Now()
+
+	var res strings.Builder
+
+	res.WriteString(fmt.Sprintf("Hello, this is HTTP-DEMO %s\n", resource.Version))
+	res.WriteString(fmt.Sprintf("Date: %s\n", nowTime.Format("2006-01-02 15:04:05")))
+	res.WriteString(fmt.Sprintf("Timestamp(Unix Second): %d\n", nowTime.Unix()))
+	res.WriteString(fmt.Sprintf("Host: %s\n", c.Request.Host))
+	res.WriteString(fmt.Sprintf("Proto: %s\n", c.Request.Proto))
+	if c.Request.TLS == nil {
+		res.WriteString(fmt.Sprintf("Https/TLS: %s\n", "No"))
+		res.WriteString(fmt.Sprintf("Http/TLS: %s\n", "Yes"))
+		res.WriteString(fmt.Sprintf("Scheme: %s\n", "HTTP"))
+	} else {
+		res.WriteString(fmt.Sprintf("Https/TLS: %s\n", "Yes"))
+		res.WriteString(fmt.Sprintf("Http/TLS: %s\n", "No"))
+		res.WriteString(fmt.Sprintf("Scheme: %s\n", "HTTPS"))
+	}
+	res.WriteString(fmt.Sprintf("Path: %s\n", c.Request.URL.Path))
+	res.WriteString(fmt.Sprintf("Query: %s\n", c.Request.URL.RawQuery))
+	res.WriteString(fmt.Sprintf("ClientIP: %s\n", c.ClientIP()))
+	res.WriteString(fmt.Sprintf("RemoteIP: %s\n", c.RemoteIP()))
+	res.WriteString(fmt.Sprintf("Via: %s\n", c.Request.Header.Get(RequestsXVia)))
+	res.WriteString(fmt.Sprintf("Forwarded: %s\n", c.Request.Header.Get(RequestsForwarded)))
+	res.WriteString(fmt.Sprintf("X-Forwarded-For: %s\n", c.Request.Header.Get(RequestsXForwardedFor)))
+	res.WriteString(fmt.Sprintf("X-Forwarded-Proto: %s\n", c.Request.Header.Get(RequestsXForwardedProto)))
+	res.WriteString(fmt.Sprintf("X-Forwarded-Host: %s\n", c.Request.Header.Get(RequestsXForwardedHost)))
+	res.WriteString(fmt.Sprintf("X-Forwarded-Host: %s\n", c.Request.Header.Get(RequestsXForwardedHost)))
+	res.WriteString(fmt.Sprintf("X-Message: %s\n", strings.Join(c.Request.Header.Values(RequestsXMessage), " ")))
+
+	str := res.String()
+	c.Writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	c.Writer.Header().Set("Content-Length", fmt.Sprintf("%d", len(str)))
+	_, _ = c.Writer.WriteString(str)
+	c.Status(http.StatusOK)
+}
+
+func HandlerRemoteIP(c *gin.Context) {
+	str := c.RemoteIP()
+	c.Writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	c.Writer.Header().Set("Content-Length", fmt.Sprintf("%d", len(str)))
+	_, _ = c.Writer.WriteString(str)
+	c.Status(http.StatusOK)
+}
+
+func HandlerClientIP(c *gin.Context) {
+	str := c.ClientIP()
+	c.Writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	c.Writer.Header().Set("Content-Length", fmt.Sprintf("%d", len(str)))
+	_, _ = c.Writer.WriteString(str)
+	c.Status(http.StatusOK)
+}
+
+func HandlerTimestamp(c *gin.Context) {
+	str := fmt.Sprintf("%d", time.Now().Unix())
+	c.Writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	c.Writer.Header().Set("Content-Length", fmt.Sprintf("%d", len(str)))
+	_, _ = c.Writer.WriteString(str)
+	c.Status(http.StatusOK)
+}
+
+func HandlerDatetime(c *gin.Context) {
+	str := time.Now().Format("2006-01-15 15:04:05")
+	c.Writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	c.Writer.Header().Set("Content-Length", fmt.Sprintf("%d", len(str)))
+	_, _ = c.Writer.WriteString(str)
+	c.Status(http.StatusOK)
+}
+
+func HandlerHelloWorld(c *gin.Context) {
+	str := "Hello, world!"
+	c.Writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	c.Writer.Header().Set("Content-Length", fmt.Sprintf("%d", len(str)))
+	_, _ = c.Writer.WriteString(str)
+	c.Status(http.StatusOK)
+}
+
+func HandlerEmpty(c *gin.Context) {
+	c.Writer.Header().Set("Content-Type", "text/plain; charset=utf-8")
+	c.Writer.Header().Set("Content-Length", "0")
+	c.Status(http.StatusNoContent)
+}
+
+func HandlerMethodNotFound(c *gin.Context) {
+	c.AbortWithStatus(http.StatusNotFound)
+}
+
+func HandlerMethodNotAllowed(c *gin.Context) {
+	c.AbortWithStatus(http.StatusMethodNotAllowed)
+}