98 lines
2.3 KiB
Go
98 lines
2.3 KiB
Go
package main // import "github.com/PierreZ/goStatic"
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import (
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"crypto/rand"
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"crypto/rsa"
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"crypto/x509"
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"crypto/x509/pkix"
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"encoding/pem"
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"flag"
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"fmt"
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"io/ioutil"
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"log"
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"math/big"
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"os"
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"strconv"
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"time"
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"github.com/labstack/echo"
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mw "github.com/labstack/echo/middleware"
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)
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func main() {
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// Def & parsing of flags
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portPtr := flag.Int("p", 8080, "The proxy listening port")
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pathPtr := flag.String("path for static file", "/var/www", "The path for the static files")
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crtPtr := flag.String("crt", "/etc/ssl/server", "The path and the name whithout extension for your CRT/key for TLS. Example: /etc/ssl/server for /etc/ssl/server.{crt,key}")
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HTTPPtr := flag.Bool("forceHTTP", false, "Forcing HTTP and not HTTPS")
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flag.Parse()
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// Echo instance
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e := echo.New()
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// Middleware
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e.Use(mw.Logger())
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e.Use(mw.Recover())
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// Routes
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e.Static("/", *pathPtr)
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log.Println("Starting goStatic")
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port := ":" + strconv.FormatInt(int64(*portPtr), 10)
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// Start server with unsecure HTTP
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// or with awesome TLS
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if *HTTPPtr {
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e.Run(port)
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} else {
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if *crtPtr != "/etc/ssl/server" {
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generateCert(*crtPtr)
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}
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e.RunTLS(port, *pathPtr+".pem", *pathPtr+".crt")
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}
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}
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// Mostly based on https://www.socketloop.com/tutorials/golang-create-x509-certificate-private-and-public-keys
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func generateCert(path string) {
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template := &x509.Certificate{
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IsCA: true,
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BasicConstraintsValid: true,
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SubjectKeyId: []byte{1, 2, 3},
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SerialNumber: big.NewInt(1234),
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Subject: pkix.Name{
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Country: []string{"Earth"},
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Organization: []string{"Hooli"},
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},
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NotBefore: time.Now(),
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NotAfter: time.Now().AddDate(5, 5, 5),
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// see http://golang.org/pkg/crypto/x509/#KeyUsage
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ExtKeyUsage: []x509.ExtKeyUsage{x509.ExtKeyUsageClientAuth, x509.ExtKeyUsageServerAuth},
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KeyUsage: x509.KeyUsageDigitalSignature | x509.KeyUsageCertSign,
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}
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// generate private key
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privatekey, err := rsa.GenerateKey(rand.Reader, 4096)
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if err != nil {
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log.Println(err)
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}
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// save cert
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ioutil.WriteFile(path+".crt", cert, 0777)
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fmt.Println("certificate saved to", path+".crt")
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// this will create plain text PEM file.
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pemfile, _ := os.Create(path + ".pem")
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var pemkey = &pem.Block{
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Type: "RSA PRIVATE KEY",
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Bytes: x509.MarshalPKCS1PrivateKey(privatekey)}
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pem.Encode(pemfile, pemkey)
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pemfile.Close()
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}
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