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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"; | |
81020562 | 8 | require_once "version.php"; |
36bfab86 | 9 | |
6cfd3c14 | 10 | $session_expire = max(SESSION_COOKIE_LIFETIME, 86400); |
3dd46f19 | 11 | $session_name = (!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid" : TTRSS_SESSION_NAME; |
36bfab86 | 12 | |
6addc13f | 13 | if (@$_SERVER['HTTPS'] == "on") { |
3d72afa1 AD |
14 | $session_name .= "_ssl"; |
15 | ini_set("session.cookie_secure", true); | |
16 | } | |
17 | ||
36bfab86 | 18 | ini_set("session.gc_probability", 50); |
3dd46f19 | 19 | ini_set("session.name", $session_name); |
c5466b7f | 20 | ini_set("session.use_only_cookies", true); |
6cfd3c14 | 21 | ini_set("session.gc_maxlifetime", $session_expire); |
36bfab86 | 22 | |
16868097 AD |
23 | global $session_connection; |
24 | ||
e9b74692 AD |
25 | function session_get_schema_version($link, $nocache = false) { |
26 | global $schema_version; | |
27 | ||
28 | if (!$schema_version) { | |
29 | $result = db_query($link, "SELECT schema_version FROM ttrss_version"); | |
30 | $version = db_fetch_result($result, 0, "schema_version"); | |
31 | $schema_version = $version; | |
32 | return $version; | |
33 | } else { | |
34 | return $schema_version; | |
35 | } | |
36 | } | |
37 | ||
38 | function validate_session($link) { | |
39 | if (SINGLE_USER_MODE) return true; | |
16868097 | 40 | if (!$link) return false; |
e9b74692 | 41 | |
81020562 AD |
42 | if (VERSION != $_SESSION["version"]) return false; |
43 | ||
e9b74692 AD |
44 | $check_ip = $_SESSION['ip_address']; |
45 | ||
46 | switch (SESSION_CHECK_ADDRESS) { | |
47 | case 0: | |
48 | $check_ip = ''; | |
49 | break; | |
50 | case 1: | |
51 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); | |
52 | break; | |
53 | case 2: | |
54 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')); | |
55 | $check_ip = substr($check_ip, 0, strrpos($check_ip, '.')+1); | |
56 | break; | |
57 | }; | |
58 | ||
59 | if ($check_ip && strpos($_SERVER['REMOTE_ADDR'], $check_ip) !== 0) { | |
60 | $_SESSION["login_error_msg"] = | |
61 | __("Session failed to validate (incorrect IP)"); | |
62 | return false; | |
63 | } | |
64 | ||
65 | if ($_SESSION["ref_schema_version"] != session_get_schema_version($link, true)) | |
66 | return false; | |
67 | ||
837ec70e AD |
68 | if (sha1($_SERVER['HTTP_USER_AGENT']) != $_SESSION["user_agent"]) |
69 | return false; | |
70 | ||
e9b74692 AD |
71 | if ($_SESSION["uid"]) { |
72 | $result = db_query($link, | |
73 | "SELECT pwd_hash FROM ttrss_users WHERE id = '".$_SESSION["uid"]."'"); | |
74 | ||
75 | // user not found | |
76 | if (db_num_rows($result) == 0) { | |
77 | return false; | |
78 | } else { | |
79 | $pwd_hash = db_fetch_result($result, 0, "pwd_hash"); | |
80 | ||
81 | if ($pwd_hash != $_SESSION["pwd_hash"]) { | |
82 | return false; | |
83 | } | |
84 | } | |
85 | } | |
86 | ||
87 | /* if ($_SESSION["cookie_lifetime"] && $_SESSION["uid"]) { | |
88 | ||
89 | //print_r($_SESSION); | |
90 | ||
91 | if (time() > $_SESSION["cookie_lifetime"]) { | |
92 | return false; | |
93 | } | |
94 | } */ | |
95 | ||
96 | return true; | |
97 | } | |
98 | ||
99 | ||
5be00836 | 100 | function ttrss_open ($s, $n) { |
36bfab86 | 101 | global $session_connection; |
3d72afa1 | 102 | |
c35b6d8e AD |
103 | $session_connection = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME); |
104 | ||
36bfab86 AD |
105 | return true; |
106 | } | |
107 | ||
5be00836 | 108 | function ttrss_read ($id){ |
3d72afa1 AD |
109 | |
110 | global $session_connection,$session_read; | |
36bfab86 | 111 | |
7a293008 | 112 | $query = "SELECT data FROM ttrss_sessions WHERE id='$id'"; |
36bfab86 AD |
113 | |
114 | $res = db_query($session_connection, $query); | |
3d72afa1 | 115 | |
36bfab86 AD |
116 | if (db_num_rows($res) != 1) { |
117 | return ""; | |
118 | } else { | |
119 | $session_read = db_fetch_assoc($res); | |
120 | $session_read["data"] = base64_decode($session_read["data"]); | |
121 | return $session_read["data"]; | |
122 | } | |
123 | } | |
124 | ||
5be00836 | 125 | function ttrss_write ($id, $data) { |
3d72afa1 AD |
126 | |
127 | if (! $data) { | |
128 | return false; | |
36bfab86 | 129 | } |
3d72afa1 | 130 | |
36bfab86 | 131 | global $session_connection, $session_read, $session_expire; |
3d72afa1 | 132 | |
36bfab86 | 133 | $expire = time() + $session_expire; |
3d72afa1 | 134 | |
3972bf59 | 135 | $data = db_escape_string($session_connection, base64_encode($data), false); |
3d72afa1 | 136 | |
36bfab86 | 137 | if ($session_read) { |
3d72afa1 AD |
138 | $query = "UPDATE ttrss_sessions SET data='$data', |
139 | expire='$expire' WHERE id='$id'"; | |
36bfab86 | 140 | } else { |
a2e9b457 AD |
141 | $query = "INSERT INTO ttrss_sessions (id, data, expire) |
142 | VALUES ('$id', '$data', '$expire')"; | |
36bfab86 | 143 | } |
3d72afa1 | 144 | |
36bfab86 AD |
145 | db_query($session_connection, $query); |
146 | return true; | |
147 | } | |
148 | ||
5be00836 | 149 | function ttrss_close () { |
3d72afa1 | 150 | |
36bfab86 | 151 | global $session_connection; |
3d72afa1 | 152 | |
3972bf59 | 153 | //db_close($session_connection); |
3d72afa1 | 154 | |
36bfab86 AD |
155 | return true; |
156 | } | |
157 | ||
5be00836 | 158 | function ttrss_destroy ($id) { |
3d72afa1 | 159 | |
36bfab86 | 160 | global $session_connection; |
09018e95 | 161 | |
7a293008 | 162 | $query = "DELETE FROM ttrss_sessions WHERE id = '$id'"; |
3d72afa1 | 163 | |
36bfab86 | 164 | db_query($session_connection, $query); |
3d72afa1 | 165 | |
36bfab86 AD |
166 | return true; |
167 | } | |
168 | ||
5be00836 | 169 | function ttrss_gc ($expire) { |
3d72afa1 | 170 | |
36bfab86 | 171 | global $session_connection; |
3d72afa1 | 172 | |
36bfab86 | 173 | $query = "DELETE FROM ttrss_sessions WHERE expire < " . time(); |
3d72afa1 | 174 | |
36bfab86 AD |
175 | db_query($session_connection, $query); |
176 | } | |
177 | ||
5c81e817 | 178 | if (!SINGLE_USER_MODE /* && DB_TYPE == "pgsql" */) { |
3d72afa1 AD |
179 | session_set_save_handler("ttrss_open", |
180 | "ttrss_close", "ttrss_read", "ttrss_write", | |
5be00836 | 181 | "ttrss_destroy", "ttrss_gc"); |
8fd92701 | 182 | } |
d620cfe7 | 183 | |
964f1533 | 184 | if (!defined('TTRSS_SESSION_NAME') || TTRSS_SESSION_NAME != 'ttrss_api_sid') { |
2137d674 | 185 | if (isset($_COOKIE[$session_name])) { |
5160620c AD |
186 | @session_start(); |
187 | } | |
964f1533 | 188 | } |
36bfab86 | 189 | ?> |