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server.go
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server.go
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package goi
import (
"context"
"crypto/tls"
"encoding/json"
"fmt"
"io"
"net"
"net/http"
"os"
"os/signal"
"reflect"
"syscall"
"time"
)
// Http 服务
var version = "1.2.0"
var engine *Engine
var Settings *metaSettings
var Cache *metaCache
var Log *metaLog
var exitChan = make(chan os.Signal, 1)
// 版本
func Version() string {
return version
}
// HandlerFunc 定义 goi 使用的请求处理程序
type HandlerFunc func(*Request) any
// type HandlerFunc func(*http.Request)
// Engine 实现 ServeHTTP 接口
type Engine struct {
startTime *time.Time
server http.Server
Router *metaRouter
MiddleWares *metaMiddleWares
Settings *metaSettings
Cache *metaCache
Log *metaLog
}
// 创建一个 Http 服务
func NewHttpServer() *Engine {
Settings = newSettings()
Cache = newCache()
Log = newLog()
engine = &Engine{
startTime: nil,
server: http.Server{},
Router: newRouter(),
MiddleWares: newMiddleWares(),
Settings: Settings,
Cache: Cache,
Log: Log,
}
return engine
}
// 启动 http 服务
func (engine *Engine) RunServer() {
var err error
// 初始化时区
location, err := time.LoadLocation(engine.Settings.TIME_ZONE)
if err != nil {
panic(fmt.Sprintf("初始化时区错误: %v\n", err))
}
engine.Settings.LOCATION = location
// 初始化日志
engine.Log.InitLogger()
engine.Log.Log(meta, "---start---")
engine.Log.Log(meta, fmt.Sprintf("启动时间: %s", time.Now().In(Settings.LOCATION).Format("2006-01-02 15:04:05")))
engine.Log.Log(meta, fmt.Sprintf("goi 版本: %v", version))
engine.Log.Log(meta, fmt.Sprintf("DEBUG: %v", engine.Log.DEBUG))
for _, logger := range engine.Log.LOGGERS {
log := fmt.Sprintf("- [%v]", logger.Name)
if logger.SPLIT_SIZE != 0 {
log += fmt.Sprintf(" 切割大小: %v", formatBytes(logger.SPLIT_SIZE))
}
if logger.SPLIT_TIME != "" {
log += fmt.Sprintf(" 切割日期: %v", logger.SPLIT_TIME)
}
engine.Log.Log(meta, log)
}
engine.Log.Log(meta, fmt.Sprintf("当前时区: %v", engine.Settings.TIME_ZONE))
// 初始化缓存
engine.Cache.initCache()
startTime := time.Now().In(Settings.LOCATION)
engine.startTime = &startTime
// 注册关闭信号
signal.Notify(exitChan, os.Interrupt, os.Kill, syscall.SIGTERM)
go func() {
// 等待关闭信号
sig, _ := <-exitChan
switch sig {
case os.Kill, os.Interrupt:
err = engine.StopServer()
engine.Log.Error(err)
default:
engine.Log.Log(meta, "无效操作!")
}
}()
engine.server = http.Server{
Addr: fmt.Sprintf("%v:%v", engine.Settings.BIND_ADDRESS, engine.Settings.PORT),
Handler: engine,
}
ln, err := net.Listen(engine.Settings.NET_WORK, engine.server.Addr)
if err != nil {
engine.Log.Error(err)
}
if engine.Settings.SSL.STATUS == true {
certificate, err := os.ReadFile(engine.Settings.SSL.CERT_PATH)
if err != nil {
engine.Log.Error(err)
}
key, err := os.ReadFile(engine.Settings.SSL.KEY_PATH)
if err != nil {
engine.Log.Error(err)
}
cert, err := tls.X509KeyPair(certificate, key)
if err != nil {
engine.Log.Error(err)
}
engine.server.TLSConfig = &tls.Config{
Certificates: []tls.Certificate{cert},
}
engine.Log.Log(meta, fmt.Sprintf("监听地址: https://%v:%v [%v]", engine.Settings.BIND_ADDRESS, engine.Settings.PORT, engine.Settings.NET_WORK))
if engine.Settings.Domain != "" {
engine.Log.Log(meta, fmt.Sprintf("监听地址: https://%v:%v [%v]", engine.Settings.Domain, engine.Settings.PORT, engine.Settings.NET_WORK))
}
err = engine.server.ServeTLS(ln, engine.Settings.SSL.CERT_PATH, engine.Settings.SSL.KEY_PATH)
} else {
engine.Log.Log(meta, fmt.Sprintf("监听地址: http://%v:%v [%v]", engine.Settings.BIND_ADDRESS, engine.Settings.PORT, engine.Settings.NET_WORK))
if engine.Settings.Domain != "" {
engine.Log.Log(meta, fmt.Sprintf("监听地址: http://%v:%v [%v]", engine.Settings.Domain, engine.Settings.PORT, engine.Settings.NET_WORK))
}
err = engine.server.Serve(ln)
}
if err != nil && err != http.ErrServerClosed {
engine.Log.Error(err)
}
}
// 停止 http 服务
func (engine *Engine) StopServer() error {
engine.Log.Log(meta, "服务已停止!")
engine.Log.Log(meta, fmt.Sprintf("停止时间: %s", time.Now().In(Settings.LOCATION).Format("2006-01-02 15:04:05")))
engine.Log.Log(meta, fmt.Sprintf("共运行: %v", engine.RunTimeStr()))
engine.Log.Log(meta, "---end---")
// 关闭服务器
err := engine.server.Shutdown(context.Background())
if err != nil {
return err
}
return nil
}
// 获取当前运行时间 返回时间间隔
func (engine *Engine) RunTime() time.Duration {
// 获取当前时间并设置时区
currentTime := time.Now().In(Settings.LOCATION)
// 计算时间间隔
return currentTime.Sub(*engine.startTime)
}
// 获取当前运行时间 返回字符串
func (engine *Engine) RunTimeStr() string {
// 获取时间间隔
elapsed := engine.RunTime()
seconds := int(elapsed.Seconds()) % 60
minutes := int(elapsed.Minutes()) % 60
hours := int(elapsed.Hours()) % 24
days := int(elapsed.Hours() / 24)
elapsedStr := fmt.Sprintf("%02d秒", seconds)
if minutes > 0 {
elapsedStr = fmt.Sprintf("%02d分", minutes) + elapsedStr
}
if hours > 0 {
elapsedStr = fmt.Sprintf("%02d时", hours) + elapsedStr
}
if days > 0 {
elapsedStr = fmt.Sprintf("%d天", days) + elapsedStr
}
return elapsedStr
}
// 实现 ServeHTTP 接口
func (engine *Engine) ServeHTTP(response http.ResponseWriter, request *http.Request) {
requestID := time.Now().In(engine.Settings.LOCATION)
ctx := context.WithValue(request.Context(), "requestID", requestID)
request = request.WithContext(ctx)
var log string
var err error
// 初始化请求
requestContext := &Request{
Object: request,
Context: request.Context(),
PathParams: make(metaValues),
QueryParams: make(metaValues),
BodyParams: make(metaValues),
}
defer metaRecovery(requestContext, response) // 异常处理
// 解析 Query 参数
for name, values := range request.URL.Query() {
for _, value := range values {
paramType := reflect.TypeOf(value).String()
data := parseValue(paramType, value)
requestContext.QueryParams[name] = append(requestContext.QueryParams[name], data)
}
}
// 解析 Body 参数
request.ParseMultipartForm(32 << 20)
for name, values := range request.Form {
for _, value := range values {
paramType := reflect.TypeOf(value).String()
data := parseValue(paramType, value)
requestContext.BodyParams[name] = append(requestContext.BodyParams[name], data)
}
}
// 解析 json 数据
body, err := io.ReadAll(request.Body)
if err != nil {
engine.Log.Error(fmt.Sprintf("读取 Body 错误: %v\n", err))
}
if len(body) != 0 {
jsonData := make(map[string]any)
err = json.Unmarshal(body, &jsonData)
if err != nil {
engine.Log.Error(fmt.Sprintf("解析 json 错误: %v\n", err))
}
for name, value := range jsonData {
requestContext.BodyParams[name] = append(requestContext.BodyParams[name], value)
}
}
// 处理 HTTP 请求
StatusCode := http.StatusOK
var ResponseData []byte
var write any
responseData := engine.HandlerHTTP(requestContext, response)
// 文件处理
fileObject, isFile := responseData.(*os.File)
if isFile {
// 返回文件内容
write, ResponseData = metaResponseStatic(fileObject, requestContext, response)
log = fmt.Sprintf("- %v - %v %v %v byte status %v %v",
request.Host,
request.Method,
request.URL.Path,
write,
request.Proto,
StatusCode,
)
engine.Log.Info(log)
return
}
// 响应处理
responseObject, isResponse := responseData.(Response)
if isResponse {
StatusCode = responseObject.Status
responseData = responseObject.Data
}
switch value := responseData.(type) {
case nil:
ResponseData, err = json.Marshal(value)
case bool:
ResponseData, err = json.Marshal(value)
case int, int8, int16, int32, int64, uint, uint8, uint16, uint32, uint64:
ResponseData, err = json.Marshal(value)
case float32, float64:
ResponseData, err = json.Marshal(value)
case string:
ResponseData = []byte(value)
case []byte:
ResponseData = responseData.([]byte)
default:
ResponseData, err = json.Marshal(value)
}
// 返回响应
if err != nil {
engine.Log.Error(fmt.Sprintf("响应 json 数据错误: %v\n", err))
}
// 返回响应
response.WriteHeader(StatusCode)
write, err = response.Write(ResponseData)
if err != nil {
engine.Log.Error(fmt.Sprintf("响应错误: %v\n", err))
}
log = fmt.Sprintf("- %v - %v %v %v byte status %v %v",
request.Host,
request.Method,
request.URL.Path,
write,
request.Proto,
StatusCode,
)
if StatusCode == http.StatusOK {
engine.Log.Info(log)
} else {
engine.Log.Error(log)
}
}
// 处理 HTTP 请求
func (engine *Engine) HandlerHTTP(request *Request, response http.ResponseWriter) (result any) {
// 处理请求前的中间件
result = engine.MiddleWares.processRequest(request)
if result != nil {
return result
}
// 路由处理
handlerFunc, err := engine.Router.routerHandlers(request)
if err != "" {
return Response{Status: http.StatusNotFound, Data: err}
}
// 视图前的中间件
result = engine.MiddleWares.processView(request, handlerFunc)
if result != nil {
return result
}
// 视图处理
viewResponse := handlerFunc(request)
// 返回响应前的中间件
result = engine.MiddleWares.processResponse(request, response)
if result != nil {
return result
}
return viewResponse
}