77 lines
1.4 KiB
Go
77 lines
1.4 KiB
Go
package main
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import (
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"bufio"
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"net/http"
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"os"
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"strings"
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"gitlab.com/nyarla/go-crypt"
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)
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type User struct {
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Username string `json:"username"`
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}
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type Htpasswd struct {
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entries map[string]string
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}
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func NewHtpasswd(path string) (*Htpasswd, error) {
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if fd, err := os.Open(path); err != nil {
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return nil, err
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} else {
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defer fd.Close()
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htpasswd := Htpasswd{
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map[string]string{},
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}
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scanner := bufio.NewScanner(fd)
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for scanner.Scan() {
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line := strings.SplitN(strings.TrimSpace(scanner.Text()), ":", 2)
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if len(line) == 2 && len(line[1]) > 2 {
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htpasswd.entries[line[0]] = line[1]
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}
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}
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if err := scanner.Err(); err != nil {
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return nil, err
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}
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return &htpasswd, nil
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}
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}
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func (h Htpasswd) Authenticate(username, password string) *User {
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if hash, ok := h.entries[username]; !ok {
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return nil
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} else if crypt.Crypt(password, hash[:2]) != hash {
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return nil
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} else {
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var u = User{username}
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return &u
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}
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}
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/// Request authentication
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func Authenticate(htpasswd Htpasswd, r *http.Request) *User {
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// Authenticate the user if any
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if username, password, ok := r.BasicAuth(); ok {
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return htpasswd.Authenticate(username, password)
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} else {
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return nil
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}
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}
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/// Page rules
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type AuthFunction func(*User, []string) bool
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func PublicPage(u *User, args []string) bool {
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return true
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}
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func PrivatePage(u *User, args []string) bool {
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return u != nil
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}
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