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A simple http server using net.Listen
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| package main | |
| import ( | |
| "bufio" | |
| "bytes" | |
| "fmt" | |
| "html/template" | |
| "log" | |
| "net" | |
| "strings" | |
| "github.com/elkcityhazard/fedihire.com/internal/config" | |
| ) | |
| var app = config.NewAppConfig() | |
| func main() { | |
| doneChan := make(chan bool) | |
| app.Port = ":8080" | |
| startServer() | |
| <-doneChan | |
| } | |
| func handleConn(c net.Conn) { | |
| path := handleRequest(c) | |
| respondConn(c, path) | |
| defer c.Close() | |
| } | |
| func respondConn(conn net.Conn, path string) { | |
| buf := new(bytes.Buffer) | |
| body := `<!DOCTYPE html><html lang="en"><head><title>Hello World</title></head><body><h1>Hello World</h1>{{with .Path}}<p>Your request path: {{.}}</p>{{end}}</body></html>` | |
| tmpl, err := template.New("hello").Parse(body) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| type data struct { | |
| Path string | |
| } | |
| d := data{Path: path} | |
| err = tmpl.Execute(buf, d) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| fmt.Fprint(conn, "HTTP/1.1 200 OK\r\n") | |
| fmt.Fprintf(conn, "Content-Length: %d\r\n", len(buf.Bytes())) | |
| fmt.Fprint(conn, "Content-Type: text/html\r\n") | |
| fmt.Fprint(conn, "\r\n") | |
| buf.WriteTo(conn) | |
| } | |
| func handleRequest(conn net.Conn) string { | |
| i := 0 | |
| scanner := bufio.NewScanner(conn) | |
| for scanner.Scan() { | |
| ln := scanner.Text() | |
| if i == 0 { | |
| reqData := strings.Split(ln, " ") | |
| urlPath := reqData[1] | |
| return urlPath | |
| } | |
| fmt.Println(ln) | |
| if ln == "" { | |
| break | |
| } | |
| i++ | |
| } | |
| return "" | |
| } | |
| func startServer() { | |
| for { | |
| fmt.Println("starting...") | |
| conn, err := net.Listen("tcp", fmt.Sprintf("%s", app.Port)) | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| defer conn.Close() | |
| for { | |
| client, err := conn.Accept() | |
| if err != nil { | |
| log.Fatalln(err) | |
| } | |
| go handleConn(client) | |
| } | |
| } | |
| } |
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