1<?php
2
3require('config.php');
4
5if (!stristr($_SERVER["CONTENT_TYPE"], "application/soap+xml")) {
6  error_log("spp.php - Unexpected Content-Type " . $_SERVER["CONTENT_TYPE"]);
7  die("Unexpected Content-Type");
8}
9
10if ($_SERVER["REQUEST_METHOD"] != "POST") {
11  error_log("spp.php - Unexpected method " . $_SERVER["REQUEST_METHOD"]);
12  die("Unexpected method");
13}
14
15if (isset($_GET["realm"])) {
16  $realm = $_GET["realm"];
17  $realm = PREG_REPLACE("/[^0-9a-zA-Z\.\-]/i", '', $realm);
18} else {
19  error_log("spp.php - Realm not specified");
20  die("Realm not specified");
21}
22
23if (isset($_GET["test"]))
24  $test = PREG_REPLACE("/[^0-9a-zA-Z\_\-]/i", '', $_GET["test"]);
25else
26  $test = "";
27
28unset($user);
29putenv("HS20CERT");
30
31if (!empty($_SERVER['PHP_AUTH_DIGEST'])) {
32  $needed = array('nonce'=>1, 'nc'=>1, 'cnonce'=>1, 'qop'=>1, 'username'=>1,
33		  'uri'=>1, 'response'=>1);
34  $data = array();
35  $keys = implode('|', array_keys($needed));
36  preg_match_all('@(' . $keys . ')=(?:([\'"])([^\2]+?)\2|([^\s,]+))@',
37		 $_SERVER['PHP_AUTH_DIGEST'], $matches, PREG_SET_ORDER);
38  foreach ($matches as $m) {
39    $data[$m[1]] = $m[3] ? $m[3] : $m[4];
40    unset($needed[$m[1]]);
41  }
42  if ($needed) {
43    error_log("spp.php - Authentication failed - missing: " . print_r($needed));
44    die('Authentication failed');
45  }
46  $user = $data['username'];
47  if (strlen($user) < 1) {
48    error_log("spp.php - Authentication failed - empty username");
49    die('Authentication failed');
50  }
51
52
53  $db = new PDO($osu_db);
54  if (!$db) {
55    error_log("spp.php - Could not access database");
56    die("Could not access database");
57  }
58  $row = $db->query("SELECT password FROM users " .
59		    "WHERE identity='$user' AND realm='$realm'")->fetch();
60  if (!$row) {
61    $row = $db->query("SELECT osu_password FROM users " .
62		      "WHERE osu_user='$user' AND realm='$realm'")->fetch();
63    $pw = $row['osu_password'];
64  } else
65    $pw = $row['password'];
66  if (!$row) {
67    error_log("spp.php - Authentication failed - user '$user' not found");
68    die('Authentication failed');
69  }
70  if (strlen($pw) < 1) {
71    error_log("spp.php - Authentication failed - empty password");
72    die('Authentication failed');
73  }
74
75  $A1 = md5($user . ':' . $realm . ':' . $pw);
76  $A2 = md5($_SERVER['REQUEST_METHOD'] . ':' . $data['uri']);
77  $resp = md5($A1 . ':' . $data['nonce'] . ':' . $data['nc'] . ':' .
78	      $data['cnonce'] . ':' . $data['qop'] . ':' . $A2);
79  if ($data['response'] != $resp) {
80    error_log("Authentication failure - response mismatch");
81    die('Authentication failed');
82  }
83} else if (isset($_SERVER["SSL_CLIENT_VERIFY"]) &&
84	   $_SERVER["SSL_CLIENT_VERIFY"] == "SUCCESS" &&
85	   isset($_SERVER["SSL_CLIENT_M_SERIAL"])) {
86  $user = "cert-" . $_SERVER["SSL_CLIENT_M_SERIAL"];
87  putenv("HS20CERT=yes");
88} else if (isset($_GET["hotspot2dot0-mobile-identifier-hash"])) {
89  $id_hash = $_GET["hotspot2dot0-mobile-identifier-hash"];
90  $id_hash = PREG_REPLACE("/[^0-9a-h]/i", '', $id_hash);
91
92  $db = new PDO($osu_db);
93  if (!$db) {
94    error_log("spp.php - Could not access database");
95    die("Could not access database");
96  }
97
98  $row = $db->query("SELECT * FROM sim_provisioning " .
99		    "WHERE mobile_identifier_hash='$id_hash'")->fetch();
100  if (!$row) {
101    error_log("spp.php - SIM provisioning failed - mobile_identifier_hash not found");
102    die('SIM provisioning failed - mobile_identifier_hash not found');
103  }
104
105  $imsi = $row['imsi'];
106  $mac_addr = $row['mac_addr'];
107  $eap_method = $row['eap_method'];
108
109  $row = $db->query("SELECT COUNT(*) FROM osu_config " .
110		    "WHERE realm='$realm'")->fetch();
111  if (!$row || intval($row[0]) < 1) {
112    error_log("spp.php - SIM provisioning failed - realm $realm not found");
113    die('SIM provisioning failed');
114  }
115
116  error_log("spp.php - SIM provisioning for IMSI $imsi");
117  putenv("HS20SIMPROV=yes");
118  putenv("HS20IMSI=$imsi");
119  putenv("HS20MACADDR=$mac_addr");
120  putenv("HS20EAPMETHOD=$eap_method");
121  putenv("HS20IDHASH=$id_hash");
122} else if (!isset($_SERVER["PATH_INFO"]) ||
123	   $_SERVER["PATH_INFO"] != "/signup") {
124  header('HTTP/1.1 401 Unauthorized');
125  header('WWW-Authenticate: Digest realm="'.$realm.
126	 '",qop="auth",nonce="'.uniqid().'",opaque="'.md5($realm).'"');
127  error_log("spp.php - Authentication required (not signup)");
128  die('Authentication required (not signup)');
129}
130
131
132if (isset($user) && strlen($user) > 0)
133  putenv("HS20USER=$user");
134else
135  putenv("HS20USER");
136
137putenv("HS20REALM=$realm");
138$postdata = file_get_contents("php://input");
139putenv("HS20POST=$postdata");
140$addr = $_SERVER["REMOTE_ADDR"];
141putenv("HS20ADDR=$addr");
142putenv("HS20TEST=$test");
143
144$last = exec("$osu_root/spp/hs20_spp_server -r$osu_root -f/tmp/hs20_spp_server.log", $output, $ret);
145
146if ($ret == 2) {
147  if (empty($_SERVER['PHP_AUTH_DIGEST'])) {
148    header('HTTP/1.1 401 Unauthorized');
149    header('WWW-Authenticate: Digest realm="'.$realm.
150           '",qop="auth",nonce="'.uniqid().'",opaque="'.md5($realm).'"');
151    error_log("spp.php - Authentication required (ret 2)");
152    die('Authentication required');
153  } else {
154    error_log("spp.php - Unexpected authentication error");
155    die("Unexpected authentication error");
156  }
157}
158if ($ret != 0) {
159  error_log("spp.php - Failed to process SPP request");
160  die("Failed to process SPP request");
161}
162//error_log("spp.php: Response: " . implode($output));
163
164header("Content-Type: application/soap+xml");
165
166echo implode($output);
167
168?>
169