用来解析 .htpasswd 文件的 PHP 类

.htpasswd 文件示例：

user1:{SHA}kGPaD671VNU0OU5lqLiN/h6Q6ac=
user2:{SHA}npMqPEX3kPQTo+x/+ZckHDrIcQI=
user3:{SHA}q1Fh2LTUjjkncp11m0M9WUH5Zrw=

1. class Htpasswd {
3. private $file = '';
4. private $salt = 'AynlJ2H.74VEfI^BZElc-Vb6G0ezE9a55-Wj';
6. private function write($pairs = array()) {
7. $str = '';
8. foreach ($pairs as $username => $password) {
9. $str .= "$username:{SHA}$password\n";
10. }
11. file_put_contents($this -> file, $str);
12. }
14. private function read() {
15. $pairs = array();
16. $fh = fopen($this -> file, 'r');
17. while (!feof($fh)) {
18. $pair_str = str_replace("\n", '', fgets($fh));
19. $pair_array = explode(':{SHA}', $pair_str);
20. if (count($pair_array) == 2) {
21. $pairs[$pair_array[0]] = $pair_array[1];
22. }
23. }
24. return $pairs;
25. }
27. private function getHash($clear_password = '') {
28. if (!empty($clear_password)) {
29. return base64_encode(sha1($clear_password, true));
30. } else {
31. return false;
32. }
33. }
35. public function __construct($file) {
36. if (file_exists($file)) {
37. $this -> file = $file;
38. } else {
39. die($file." doesn't exist.");
40. return false;
41. }
42. }
44. public function addUser($username = '', $clear_password = '') {
45. if (!empty($username) && !empty($clear_password)) {
46. $all = $this -> read();
47. if (!array_key_exists($username, $all)) {
48. $all[$username] = $this -> getHash($clear_password);
49. $this -> write($all);
50. }
51. } else {
52. return false;
53. }
54. }
56. public function deleteUser($username = '') {
57. $all = $this -> read();
58. if (array_key_exists($username, $all)) {
59. unset($all[$username]);
60. $this -> write($all);
61. } else {
62. return false;
63. }
64. }
66. public function doesUserExist($username = '') {
67. $all = $this -> read();
68. if (array_key_exists($username, $all)) {
69. return true;
70. } else {
71. return false;
72. }
73. }
75. public function getClearPassword($username) {
76. return strtolower(substr(sha1($username.$this -> salt), 4, 12));
77. }
79. }

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1. $passwdHandler = new Htpasswd('/home/myuser/.htpasswd');
3. // Add a user with name 'user1' and password 'I prefer to use passphrase rather than password.' if it doesn't exist in .htpasswd.
4. $passwdHandler -> addUser('user1', 'I prefer to use passphrase rather than password.');
5. // Delete the user 'user1' if it exists in .htpasswd.
6. $passwdHandler -> deleteUser('user1');
8. // Check if user 'user1' exists in .htpasswd.
9. if ($passwdHandler -> doesUserExist('user1')) {
10. // User 'user1' exists.
11. }

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