| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * redirect.php |
| 5 | * Derived from webmail.php by Ralf Kraudelt <kraude@wiwi.uni-rostock.de> |
| 6 | * |
| 7 | * Copyright (c) 1999-2002 The SquirrelMail Project Team |
| 8 | * Licensed under the GNU GPL. For full terms see the file COPYING. |
| 9 | * |
| 10 | * Prevents users from reposting their form data after a successful logout. |
| 11 | * |
| 12 | * $Id$ |
| 13 | */ |
| 14 | |
| 15 | /* Path for SquirrelMail required files. */ |
| 16 | define('SM_PATH','../'); |
| 17 | |
| 18 | /* SquirrelMail required files. */ |
| 19 | require_once(SM_PATH . 'functions/i18n.php'); |
| 20 | require_once(SM_PATH . 'functions/strings.php'); |
| 21 | require_once(SM_PATH . 'config/config.php'); |
| 22 | require_once(SM_PATH . 'functions/prefs.php'); |
| 23 | require_once(SM_PATH . 'functions/imap.php'); |
| 24 | require_once(SM_PATH . 'functions/plugin.php'); |
| 25 | require_once(SM_PATH . 'functions/constants.php'); |
| 26 | require_once(SM_PATH . 'functions/page_header.php'); |
| 27 | require_once(SM_PATH . 'functions/global.php'); |
| 28 | |
| 29 | // Remove slashes if PHP added them |
| 30 | if (get_magic_quotes_gpc()) { |
| 31 | global $REQUEST_METHOD; |
| 32 | |
| 33 | if ($REQUEST_METHOD == 'POST') { |
| 34 | global $HTTP_POST_VARS; |
| 35 | RemoveSlashes($HTTP_POST_VARS); |
| 36 | } else if ($REQUEST_METHOD == 'GET') { |
| 37 | global $HTTP_GET_VARS; |
| 38 | RemoveSlashes($HTTP_GET_VARS); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | /* Before starting the session, the base URI must be known. Assuming */ |
| 43 | /* that this file is in the src/ subdirectory (or something). */ |
| 44 | if (!function_exists('sqm_baseuri')){ |
| 45 | require_once(SM_PATH . 'functions/display_messages.php'); |
| 46 | } |
| 47 | $base_uri = sqm_baseuri(); |
| 48 | |
| 49 | header('Pragma: no-cache'); |
| 50 | $location = get_location(); |
| 51 | |
| 52 | session_set_cookie_params (0, $base_uri); |
| 53 | session_start(); |
| 54 | |
| 55 | session_unregister ('user_is_logged_in'); |
| 56 | session_register ('base_uri'); |
| 57 | |
| 58 | if (! isset($squirrelmail_language) || |
| 59 | $squirrelmail_language == '' ) { |
| 60 | $squirrelmail_language = $squirrelmail_default_language; |
| 61 | } |
| 62 | set_up_language($squirrelmail_language, true); |
| 63 | /* Refresh the language cookie. */ |
| 64 | setcookie('squirrelmail_language', $squirrelmail_language, time()+2592000, |
| 65 | $base_uri); |
| 66 | |
| 67 | if (!isset($login_username)) { |
| 68 | include_once( '../functions/display_messages.php' ); |
| 69 | logout_error( _("You must be logged in to access this page.") ); |
| 70 | exit; |
| 71 | } |
| 72 | |
| 73 | if (!session_is_registered('user_is_logged_in')) { |
| 74 | do_hook ('login_before'); |
| 75 | |
| 76 | $onetimepad = OneTimePadCreate(strlen($secretkey)); |
| 77 | $key = OneTimePadEncrypt($secretkey, $onetimepad); |
| 78 | session_register('onetimepad'); |
| 79 | |
| 80 | /* remove redundant spaces */ |
| 81 | $login_username = trim($login_username); |
| 82 | |
| 83 | /* Verify that username and password are correct. */ |
| 84 | if ($force_username_lowercase) { |
| 85 | $login_username = strtolower($login_username); |
| 86 | } |
| 87 | |
| 88 | $imapConnection = sqimap_login($login_username, $key, $imapServerAddress, $imapPort, 0); |
| 89 | if (!$imapConnection) { |
| 90 | $errTitle = _("There was an error contacting the mail server."); |
| 91 | $errString = $errTitle . "<br>\n". |
| 92 | _("Contact your administrator for help."); |
| 93 | include_once( '../functions/display_messages.php' ); |
| 94 | logout_error( $errString, $errTitle ); |
| 95 | exit; |
| 96 | } else { |
| 97 | $sqimap_capabilities = sqimap_capability($imapConnection); |
| 98 | session_register('sqimap_capabilities'); |
| 99 | $delimiter = sqimap_get_delimiter ($imapConnection); |
| 100 | } |
| 101 | sqimap_logout($imapConnection); |
| 102 | session_register('delimiter'); |
| 103 | global $username; |
| 104 | $username = $login_username; |
| 105 | session_register ('username'); |
| 106 | setcookie('key', $key, 0, $base_uri); |
| 107 | do_hook ('login_verified'); |
| 108 | |
| 109 | } |
| 110 | |
| 111 | /* Set the login variables. */ |
| 112 | $user_is_logged_in = true; |
| 113 | $just_logged_in = true; |
| 114 | |
| 115 | /* And register with them with the session. */ |
| 116 | session_register ('user_is_logged_in'); |
| 117 | session_register ('just_logged_in'); |
| 118 | |
| 119 | /* parse the accepted content-types of the client */ |
| 120 | $attachment_common_types = array(); |
| 121 | $attachment_common_types_parsed = array(); |
| 122 | session_register('attachment_common_types'); |
| 123 | session_register('attachment_common_types_parsed'); |
| 124 | |
| 125 | $debug = false; |
| 126 | if (isset($HTTP_SERVER_VARS['HTTP_ACCEPT']) && |
| 127 | !isset($attachment_common_types_parsed[$HTTP_SERVER_VARS['HTTP_ACCEPT']])) { |
| 128 | attachment_common_parse($HTTP_SERVER_VARS['HTTP_ACCEPT'], $debug); |
| 129 | } |
| 130 | if (isset($HTTP_ACCEPT) && |
| 131 | !isset($attachment_common_types_parsed[$HTTP_ACCEPT])) { |
| 132 | attachment_common_parse($HTTP_ACCEPT, $debug); |
| 133 | } |
| 134 | |
| 135 | /* Complete autodetection of Javascript. */ |
| 136 | $javascript_setting = getPref |
| 137 | ($data_dir, $username, 'javascript_setting', SMPREF_JS_AUTODETECT); |
| 138 | $js_autodetect_results = (isset($js_autodetect_results) ? |
| 139 | $js_autodetect_results : SMPREF_JS_OFF); |
| 140 | /* See if it's set to "Always on" */ |
| 141 | $js_pref = SMPREF_JS_ON; |
| 142 | if ($javascript_setting != SMPREF_JS_ON){ |
| 143 | if ($javascript_setting == SMPREF_JS_AUTODETECT) { |
| 144 | if ($js_autodetect_results == SMPREF_JS_OFF) { |
| 145 | $js_pref = SMPREF_JS_OFF; |
| 146 | } |
| 147 | } else { |
| 148 | $js_pref = SMPREF_JS_OFF; |
| 149 | } |
| 150 | } |
| 151 | /* Update the prefs */ |
| 152 | setPref($data_dir, $username, 'javascript_on', $js_pref); |
| 153 | |
| 154 | global $attachments; |
| 155 | $attachments = unserialize(getPref($data_dir, $username, 'attachments', 0)); |
| 156 | /* Compute the URL to forward the user to. */ |
| 157 | global $session_expired_location, $session_expired_post; |
| 158 | if (isset($session_expired_location) && $session_expired_location) { |
| 159 | $compose_new_win = getPref($data_dir, $username, 'compose_new_win', 0); |
| 160 | if ($compose_new_win) { |
| 161 | $redirect_url = $session_expired_location; |
| 162 | } else { |
| 163 | $redirect_url = 'webmail.php?right_frame='.urldecode($session_expired_location); |
| 164 | } |
| 165 | session_unregister('session_expired_location'); |
| 166 | unset($session_expired_location); |
| 167 | if (is_array($attachments)) { |
| 168 | session_register('attachments'); |
| 169 | } |
| 170 | } else { |
| 171 | if (is_array($attachments)) { |
| 172 | $hashed_attachment_dir = getHashedDir($username, $attachment_dir); |
| 173 | foreach ($attachments as $attachment) { |
| 174 | $attached_file = $hashed_attachment_dir.'/'.$attachment['localfilename']; |
| 175 | if (file_exists($attached_file)) { |
| 176 | unlink($attached_file); |
| 177 | } |
| 178 | } |
| 179 | removePref($data_dir, $username, 'attachments'); |
| 180 | } |
| 181 | $redirect_url = 'webmail.php'; |
| 182 | } |
| 183 | |
| 184 | /* Send them off to the appropriate page. */ |
| 185 | header("Location: $redirect_url"); |
| 186 | |
| 187 | /* --------------------- end main ----------------------- */ |
| 188 | |
| 189 | function attachment_common_parse($str, $debug) { |
| 190 | global $attachment_common_types, $attachment_common_types_parsed; |
| 191 | |
| 192 | $attachment_common_types_parsed[$str] = true; |
| 193 | $types = explode(', ', $str); |
| 194 | |
| 195 | foreach ($types as $val) { |
| 196 | // Ignore the ";q=1.0" stuff |
| 197 | if (strpos($val, ';') !== false) |
| 198 | $val = substr($val, 0, strpos($val, ';')); |
| 199 | |
| 200 | if (! isset($attachment_common_types[$val])) { |
| 201 | $attachment_common_types[$val] = true; |
| 202 | } |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | |
| 207 | ?> |