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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"; | |
889a5f9f | 6 | require_once "errorhandler.php"; |
7081aaa0 RP |
7 | require_once "lib/accept-to-gettext.php"; |
8 | require_once "lib/gettext/gettext.inc"; | |
81020562 | 9 | require_once "version.php"; |
36bfab86 | 10 | |
6cfd3c14 | 11 | $session_expire = max(SESSION_COOKIE_LIFETIME, 86400); |
3dd46f19 | 12 | $session_name = (!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME; |
36bfab86 | 13 | |
6addc13f | 14 | if (@$_SERVER['HTTPS'] == "on") { |
3d72afa1 AD |
15 | $session_name .= "_ssl"; |
16 | ini_set("session.cookie_secure", true); | |
17 | } | |
18 | ||
9ce7a554 | 19 | ini_set("session.gc_probability", 75); |
3dd46f19 | 20 | ini_set("session.name", $session_name); |
c5466b7f | 21 | ini_set("session.use_only_cookies", true); |
6cfd3c14 | 22 | ini_set("session.gc_maxlifetime", $session_expire); |
9ce7a554 | 23 | ini_set("session.cookie_lifetime", min(0, SESSION_COOKIE_LIFETIME)); |
36bfab86 | 24 | |
16868097 AD |
25 | global $session_connection; |
26 | ||
e9b74692 AD |
27 | function session_get_schema_version($link, $nocache = false) { |
28 | global $schema_version; | |
29 | ||
30 | if (!$schema_version) { | |
31 | $result = db_query($link, "SELECT schema_version FROM ttrss_version"); | |
32 | $version = db_fetch_result($result, 0, "schema_version"); | |
33 | $schema_version = $version; | |
34 | return $version; | |
35 | } else { | |
36 | return $schema_version; | |
37 | } | |
38 | } | |
39 | ||
40 | function validate_session($link) { | |
41 | if (SINGLE_USER_MODE) return true; | |
16868097 | 42 | if (!$link) return false; |
e9b74692 | 43 | |
81020562 AD |
44 | if (VERSION != $_SESSION["version"]) return false; |
45 | ||
e9b74692 AD |
46 | $check_ip = $_SESSION['ip_address']; |
47 | ||
48 | switch (SESSION_CHECK_ADDRESS) { | |
49 | case 0: | |
50 | $check_ip = ''; | |
51 | break; | |
52 | case 1: | |
53 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); | |
54 | break; | |
55 | case 2: | |
56 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')); | |
57 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); | |
58 | break; | |
59 | }; | |
60 | ||
61 | if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) { | |
62 | $_SESSION["login_error_msg"] = | |
63 | __("Session failed to validate (incorrect IP)"); | |
64 | return false; | |
65 | } | |
66 | ||
67 | if ($_SESSION["ref_schema_version"] != session_get_schema_version($link, true)) | |
68 | return false; | |
69 | ||
837ec70e AD |
70 | if (sha1($_SERVER['HTTP_USER_AGENT']) != $_SESSION["user_agent"]) |
71 | return false; | |
72 | ||
e9b74692 AD |
73 | if ($_SESSION["uid"]) { |
74 | $result = db_query($link, | |
75 | "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'"); | |
76 | ||
77 | // user not found | |
78 | if (db_num_rows($result) == 0) { | |
79 | return false; | |
80 | } else { | |
81 | $pwd_hash = db_fetch_result($result, 0, "pwd_hash"); | |
82 | ||
83 | if ($pwd_hash != $_SESSION["pwd_hash"]) { | |
84 | return false; | |
85 | } | |
86 | } | |
87 | } | |
88 | ||
89 | /* if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) { | |
90 | ||
91 | //print_r($_SESSION); | |
92 | ||
93 | if (time() > $_SESSION["cookie_lifetime"]) { | |
94 | return false; | |
95 | } | |
96 | } */ | |
97 | ||
98 | return true; | |
99 | } | |
100 | ||
101 | ||
5be00836 | 102 | function ttrss_open ($s, $n) { |
36bfab86 | 103 | global $session_connection; |
3d72afa1 | 104 | |
c35b6d8e AD |
105 | $session_connection = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME); |
106 | ||
36bfab86 AD |
107 | return true; |
108 | } | |
109 | ||
5be00836 | 110 | function ttrss_read ($id){ |
3d72afa1 AD |
111 | |
112 | global $session_connection,$session_read; | |
36bfab86 | 113 | |
7a293008 | 114 | $query = "SELECT data FROM ttrss_sessions WHERE id='$id'"; |
36bfab86 AD |
115 | |
116 | $res = db_query($session_connection, $query); | |
3d72afa1 | 117 | |
36bfab86 AD |
118 | if (db_num_rows($res) != 1) { |
119 | return ""; | |
120 | } else { | |
121 | $session_read = db_fetch_assoc($res); | |
122 | $session_read["data"] = base64_decode($session_read["data"]); | |
123 | return $session_read["data"]; | |
124 | } | |
125 | } | |
126 | ||
5be00836 | 127 | function ttrss_write ($id, $data) { |
3d72afa1 AD |
128 | |
129 | if (! $data) { | |
130 | return false; | |
36bfab86 | 131 | } |
3d72afa1 | 132 | |
36bfab86 | 133 | global $session_connection, $session_read, $session_expire; |
3d72afa1 | 134 | |
36bfab86 | 135 | $expire = time() + $session_expire; |
3d72afa1 | 136 | |
3972bf59 | 137 | $data = db_escape_string($session_connection, base64_encode($data), false); |
3d72afa1 | 138 | |
36bfab86 | 139 | if ($session_read) { |
3d72afa1 AD |
140 | $query = "UPDATE ttrss_sessions SET data='$data', |
141 | expire='$expire' WHERE id='$id'"; | |
36bfab86 | 142 | } else { |
a2e9b457 AD |
143 | $query = "INSERT INTO ttrss_sessions (id, data, expire) |
144 | VALUES ('$id', '$data', '$expire')"; | |
36bfab86 | 145 | } |
3d72afa1 | 146 | |
36bfab86 AD |
147 | db_query($session_connection, $query); |
148 | return true; | |
149 | } | |
150 | ||
5be00836 | 151 | function ttrss_close () { |
3d72afa1 | 152 | |
36bfab86 | 153 | global $session_connection; |
3d72afa1 | 154 | |
3972bf59 | 155 | //db_close($session_connection); |
3d72afa1 | 156 | |
36bfab86 AD |
157 | return true; |
158 | } | |
159 | ||
5be00836 | 160 | function ttrss_destroy ($id) { |
3d72afa1 | 161 | |
36bfab86 | 162 | global $session_connection; |
09018e95 | 163 | |
7a293008 | 164 | $query = "DELETE FROM ttrss_sessions WHERE id = '$id'"; |
3d72afa1 | 165 | |
36bfab86 | 166 | db_query($session_connection, $query); |
3d72afa1 | 167 | |
36bfab86 AD |
168 | return true; |
169 | } | |
170 | ||
5be00836 | 171 | function ttrss_gc ($expire) { |
3d72afa1 | 172 | |
36bfab86 | 173 | global $session_connection; |
3d72afa1 | 174 | |
36bfab86 | 175 | $query = "DELETE FROM ttrss_sessions WHERE expire < " . time(); |
3d72afa1 | 176 | |
36bfab86 AD |
177 | db_query($session_connection, $query); |
178 | } | |
179 | ||
5c81e817 | 180 | if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) { |
3d72afa1 AD |
181 | session_set_save_handler("ttrss_open", |
182 | "ttrss_close", "ttrss_read", "ttrss_write", | |
5be00836 | 183 | "ttrss_destroy", "ttrss_gc"); |
8fd92701 | 184 | } |
d620cfe7 | 185 | |
9ce7a554 AD |
186 | if (!defined('NO_SESSION_AUTOSTART')) { |
187 | if (isset($_COOKIE[session_name()])) { | |
5160620c AD |
188 | @session_start(); |
189 | } | |
964f1533 | 190 | } |
36bfab86 | 191 | ?> |