85 lines
1.7 KiB
Go
85 lines
1.7 KiB
Go
package main
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import (
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"crypto/md5"
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"fmt"
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"log"
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"os"
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"os/exec"
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"strings"
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)
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const GitProjectRoot = "/home/neale/projects"
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const CgitConfig = "/home/neale/public_html/cgitrc"
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const Cgit = "/opt/cgit/cgit.cgi"
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// printf "USER:PASS" | base64 | while read a; do printf "%s" "$a" | md5sum; done
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var allowed = []string{
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"2c64993e88c06e297d4f01cf3b5aebdf", // neale
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}
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func execv(name string, arg ...string) {
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c := exec.Command(name, arg...)
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c.Stdin = os.Stdin
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c.Stdout = os.Stdout
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c.Stderr = os.Stderr
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if err := c.Run(); err != nil {
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log.Print(err)
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}
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}
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func Authenticated() bool {
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auth := os.Getenv("HTTP_AUTHORIZATION")
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if auth == "" {
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return false
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}
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parts := strings.Split(auth, " ")
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switch {
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case len(parts) != 2:
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return false
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case parts[0] != "Basic":
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return false
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}
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hash := md5.Sum([]byte(parts[1]))
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hashhex := fmt.Sprintf("%x", hash)
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for _, a := range allowed {
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if a == hashhex {
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os.Setenv("AUTH_TYPE", parts[0])
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os.Setenv("REMOTE_USER", "XXX-neale")
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return true
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}
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}
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return false
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}
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func main() {
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log.SetFlags(0)
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//log.SetOutput(os.Stdout)
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//log.SetPrefix("Status: 500 CGI Go Boom\nContent-type: text/plain\n\nERROR: ")
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os.Setenv("GIT_PROJECT_ROOT", GitProjectRoot)
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os.Setenv("CGIT_CONFIG", CgitConfig)
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uri := os.Getenv("REQUEST_URI")
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switch {
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case strings.HasSuffix(uri, "git-receive-pack"):
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if Authenticated() {
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execv("git", "http-backend")
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} else {
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fmt.Println("Status: 401 Not Authorized")
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fmt.Println("Content-type: text/plain")
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fmt.Println("WWW-Authenticate: Basic realm=\"git\"")
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fmt.Println()
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fmt.Println("Nope", os.Getenv("HTTP_AUTHORIZATION"))
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}
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case strings.HasSuffix(uri, "git-upload-pack"):
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execv("git", "http-backend")
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default:
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execv(Cgit)
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}
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}
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