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Commit | Line | Data |
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1d3a17c7 | 1 | <?php |
36bfab86 AD |
2 | // Original from http://www.daniweb.com/code/snippet43.html |
3 | ||
4 | require_once "config.php"; | |
5 | require_once "db.php"; | |
7081aaa0 RP |
6 | require_once "lib/accept-to-gettext.php"; |
7 | require_once "lib/gettext/gettext.inc"; | |
36bfab86 | 8 | |
6cfd3c14 | 9 | $session_expire = max(SESSION_COOKIE_LIFETIME, 86400); |
3dd46f19 | 10 | $session_name = (!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME; |
36bfab86 | 11 | |
6addc13f | 12 | if (@$_SERVER['HTTPS'] == "on") { |
3d72afa1 AD |
13 | $session_name .= "_ssl"; |
14 | ini_set("session.cookie_secure", true); | |
15 | } | |
16 | ||
36bfab86 | 17 | ini_set("session.gc_probability", 50); |
3dd46f19 | 18 | ini_set("session.name", $session_name); |
c5466b7f | 19 | ini_set("session.use_only_cookies", true); |
6cfd3c14 | 20 | ini_set("session.gc_maxlifetime", $session_expire); |
36bfab86 | 21 | |
e9b74692 AD |
22 | function session_get_schema_version($link, $nocache = false) { |
23 | global $schema_version; | |
24 | ||
25 | if (!$schema_version) { | |
26 | $result = db_query($link, "SELECT schema_version FROM ttrss_version"); | |
27 | $version = db_fetch_result($result, 0, "schema_version"); | |
28 | $schema_version = $version; | |
29 | return $version; | |
30 | } else { | |
31 | return $schema_version; | |
32 | } | |
33 | } | |
34 | ||
35 | function validate_session($link) { | |
36 | if (SINGLE_USER_MODE) return true; | |
37 | ||
38 | $check_ip = $_SESSION['ip_address']; | |
39 | ||
40 | switch (SESSION_CHECK_ADDRESS) { | |
41 | case 0: | |
42 | $check_ip = ''; | |
43 | break; | |
44 | case 1: | |
45 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); | |
46 | break; | |
47 | case 2: | |
48 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')); | |
49 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); | |
50 | break; | |
51 | }; | |
52 | ||
53 | if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) { | |
54 | $_SESSION["login_error_msg"] = | |
55 | __("Session failed to validate (incorrect IP)"); | |
56 | return false; | |
57 | } | |
58 | ||
59 | if ($_SESSION["ref_schema_version"] != session_get_schema_version($link, true)) | |
60 | return false; | |
61 | ||
837ec70e AD |
62 | if (sha1($_SERVER['HTTP_USER_AGENT']) != $_SESSION["user_agent"]) |
63 | return false; | |
64 | ||
e9b74692 AD |
65 | if ($_SESSION["uid"]) { |
66 | $result = db_query($link, | |
67 | "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'"); | |
68 | ||
69 | // user not found | |
70 | if (db_num_rows($result) == 0) { | |
71 | return false; | |
72 | } else { | |
73 | $pwd_hash = db_fetch_result($result, 0, "pwd_hash"); | |
74 | ||
75 | if ($pwd_hash != $_SESSION["pwd_hash"]) { | |
76 | return false; | |
77 | } | |
78 | } | |
79 | } | |
80 | ||
81 | /* if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) { | |
82 | ||
83 | //print_r($_SESSION); | |
84 | ||
85 | if (time() > $_SESSION["cookie_lifetime"]) { | |
86 | return false; | |
87 | } | |
88 | } */ | |
89 | ||
90 | return true; | |
91 | } | |
92 | ||
93 | ||
5be00836 | 94 | function ttrss_open ($s, $n) { |
3d72afa1 | 95 | |
36bfab86 | 96 | global $session_connection; |
3d72afa1 | 97 | |
36bfab86 | 98 | $session_connection = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME); |
3d72afa1 | 99 | |
36bfab86 AD |
100 | return true; |
101 | } | |
102 | ||
5be00836 | 103 | function ttrss_read ($id){ |
3d72afa1 AD |
104 | |
105 | global $session_connection,$session_read; | |
36bfab86 | 106 | |
7a293008 | 107 | $query = "SELECT data FROM ttrss_sessions WHERE id='$id'"; |
36bfab86 AD |
108 | |
109 | $res = db_query($session_connection, $query); | |
3d72afa1 | 110 | |
36bfab86 AD |
111 | if (db_num_rows($res) != 1) { |
112 | return ""; | |
113 | } else { | |
114 | $session_read = db_fetch_assoc($res); | |
115 | $session_read["data"] = base64_decode($session_read["data"]); | |
116 | return $session_read["data"]; | |
117 | } | |
118 | } | |
119 | ||
5be00836 | 120 | function ttrss_write ($id, $data) { |
3d72afa1 AD |
121 | |
122 | if (! $data) { | |
123 | return false; | |
36bfab86 | 124 | } |
3d72afa1 | 125 | |
36bfab86 | 126 | global $session_connection, $session_read, $session_expire; |
3d72afa1 | 127 | |
36bfab86 | 128 | $expire = time() + $session_expire; |
3d72afa1 | 129 | |
3972bf59 | 130 | $data = db_escape_string($session_connection, base64_encode($data), false); |
3d72afa1 | 131 | |
36bfab86 | 132 | if ($session_read) { |
3d72afa1 AD |
133 | $query = "UPDATE ttrss_sessions SET data='$data', |
134 | expire='$expire' WHERE id='$id'"; | |
36bfab86 | 135 | } else { |
a2e9b457 AD |
136 | $query = "INSERT INTO ttrss_sessions (id, data, expire) |
137 | VALUES ('$id', '$data', '$expire')"; | |
36bfab86 | 138 | } |
3d72afa1 | 139 | |
36bfab86 AD |
140 | db_query($session_connection, $query); |
141 | return true; | |
142 | } | |
143 | ||
5be00836 | 144 | function ttrss_close () { |
3d72afa1 | 145 | |
36bfab86 | 146 | global $session_connection; |
3d72afa1 | 147 | |
3972bf59 | 148 | //db_close($session_connection); |
3d72afa1 | 149 | |
36bfab86 AD |
150 | return true; |
151 | } | |
152 | ||
5be00836 | 153 | function ttrss_destroy ($id) { |
3d72afa1 | 154 | |
36bfab86 | 155 | global $session_connection; |
09018e95 | 156 | |
7a293008 | 157 | $query = "DELETE FROM ttrss_sessions WHERE id = '$id'"; |
3d72afa1 | 158 | |
36bfab86 | 159 | db_query($session_connection, $query); |
3d72afa1 | 160 | |
36bfab86 AD |
161 | return true; |
162 | } | |
163 | ||
5be00836 | 164 | function ttrss_gc ($expire) { |
3d72afa1 | 165 | |
36bfab86 | 166 | global $session_connection; |
3d72afa1 | 167 | |
36bfab86 | 168 | $query = "DELETE FROM ttrss_sessions WHERE expire < " . time(); |
3d72afa1 | 169 | |
36bfab86 AD |
170 | db_query($session_connection, $query); |
171 | } | |
172 | ||
5c81e817 | 173 | if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) { |
3d72afa1 AD |
174 | session_set_save_handler("ttrss_open", |
175 | "ttrss_close", "ttrss_read", "ttrss_write", | |
5be00836 | 176 | "ttrss_destroy", "ttrss_gc"); |
8fd92701 | 177 | } |
d620cfe7 | 178 | |
964f1533 | 179 | if (!defined('TTRSS_SESSION_NAME') || TTRSS_SESSION_NAME != 'ttrss_api_sid') { |
2137d674 | 180 | if (isset($_COOKIE[$session_name])) { |
5160620c | 181 | @session_start(); |
60ed4c9a | 182 | |
e9b74692 | 183 | if (!isset($_SESSION["uid"]) || !$_SESSION["uid"] || !validate_session($session_connection)) { |
60ed4c9a | 184 | session_destroy(); |
2137d674 | 185 | setcookie(session_name(), '', time()-42000, '/'); |
60ed4c9a | 186 | } |
5160620c | 187 | } |
964f1533 | 188 | } |
36bfab86 | 189 | ?> |