Created
November 30, 2019 22:17
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Basic HTTP server over TCP. Prints entire TCP body as string for each request handled.
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| package main | |
| import ( | |
| "fmt" | |
| "log" | |
| "net" | |
| ) | |
| const ( | |
| chunkSize = 4096 | |
| ) | |
| func handle(conn net.Conn) { | |
| defer conn.Close() | |
| request(conn) | |
| } | |
| func request(conn net.Conn) { | |
| started := false | |
| var tcpBody []byte | |
| part := make([]byte, chunkSize) | |
| bytesRead, _ := conn.Read(part) | |
| for bytesRead > 0 { | |
| tcpBody = append(tcpBody, part[:bytesRead]...) | |
| if !started { | |
| index(conn) | |
| } | |
| bytesRead, _ = conn.Read(part) | |
| started = true | |
| } | |
| fmt.Printf("Serving on %q to client at %q\n%q\n", conn.LocalAddr(), conn.RemoteAddr(), tcpBody) | |
| } | |
| func index(conn net.Conn) { | |
| body := "<html><body>Hello World</body></html>" | |
| fmt.Fprint(conn, "HTTP/1.1 200 OK\r\n") | |
| fmt.Fprintf(conn, "Content-Length: %d\r\n", len(body)) | |
| fmt.Fprint(conn, "Content-Type: text/html\r\n") | |
| fmt.Fprint(conn, "Connection: close\r\n") | |
| fmt.Fprint(conn, "\r\n") | |
| fmt.Fprint(conn, body) | |
| } | |
| func main() { | |
| // H/T: https://github.com/GoesToEleven/golang-web-dev/tree/2bdef48e8e7bf310300130555e89435349f64197/016_building-a-tcp-server-for-http | |
| li, err := net.Listen("tcp", ":5007") | |
| if err != nil { | |
| log.Fatalln(err.Error()) | |
| } | |
| defer li.Close() | |
| for { | |
| conn, err := li.Accept() | |
| if err != nil { | |
| log.Println(err.Error()) | |
| continue | |
| } | |
| go handle(conn) | |
| } | |
| } |
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