| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * Merakchange password backend |
| 5 | * |
| 6 | * @author Edwin van Elk <edwin at eve-software.com> |
| 7 | * @copyright 2004-2018 The SquirrelMail Project Team |
| 8 | * @license http://opensource.org/licenses/gpl-license.php GNU Public License |
| 9 | * @version $Id$ |
| 10 | * @package plugins |
| 11 | * @subpackage change_password |
| 12 | */ |
| 13 | |
| 14 | /** |
| 15 | * Config vars |
| 16 | */ |
| 17 | |
| 18 | global $merak_url, $merak_selfpage, $merak_action; |
| 19 | |
| 20 | // The Merak Server |
| 21 | |
| 22 | $merak_url = "http://localhost:32000/"; |
| 23 | $merak_selfpage = "self.html"; |
| 24 | $merak_action = "self_edit"; |
| 25 | |
| 26 | // get overrides from config. |
| 27 | if ( isset($cpw_merak) && is_array($cpw_merak) && !empty($cpw_merak) ) { |
| 28 | foreach ( $cpw_merak as $key => $value ) { |
| 29 | if ( isset(${'merak_'.$key}) ) |
| 30 | ${'merak_'.$key} = $value; |
| 31 | } |
| 32 | } |
| 33 | |
| 34 | global $squirrelmail_plugin_hooks; |
| 35 | $squirrelmail_plugin_hooks['change_password_dochange']['merak'] = |
| 36 | 'cpw_merak_dochange'; |
| 37 | $squirrelmail_plugin_hooks['change_password_init']['merak'] = |
| 38 | 'cpw_merak_init'; |
| 39 | |
| 40 | /** |
| 41 | * Check if php install has all required extensions. |
| 42 | */ |
| 43 | function cpw_merak_init() { |
| 44 | global $oTemplate; |
| 45 | |
| 46 | if (!function_exists('curl_init')) { |
| 47 | // user_error('Curl module NOT available!', E_USER_ERROR); |
| 48 | error_box(_("PHP Curl extension is NOT available! Unable to change password!")); |
| 49 | // close html and stop script execution |
| 50 | $oTemplate->display('footer.tpl'); |
| 51 | exit(); |
| 52 | } |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * This is the function that is specific to your backend. It takes |
| 57 | * the current password (as supplied by the user) and the desired |
| 58 | * new password. It will return an array of messages. If everything |
| 59 | * was successful, the array will be empty. Else, it will contain |
| 60 | * the errormessage(s). |
| 61 | * Constants to be used for these messages: |
| 62 | * CPW_CURRENT_NOMATCH -> "Your current password is not correct." |
| 63 | * CPW_INVALID_PW -> "Your new password contains invalid characters." |
| 64 | * |
| 65 | * @param array data The username/currentpw/newpw data. |
| 66 | * @return array Array of error messages. |
| 67 | */ |
| 68 | function cpw_merak_dochange($data) |
| 69 | { |
| 70 | // unfortunately, we can only pass one parameter to a hook function, |
| 71 | // so we have to pass it as an array. |
| 72 | $username = $data['username']; |
| 73 | $curpw = $data['curpw']; |
| 74 | $newpw = $data['newpw']; |
| 75 | |
| 76 | $msgs = array(); |
| 77 | |
| 78 | global $merak_url, $merak_selfpage, $merak_action; |
| 79 | |
| 80 | $ch = curl_init(); |
| 81 | curl_setopt ($ch, CURLOPT_URL, $merak_url . $merak_selfpage); |
| 82 | curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); |
| 83 | curl_setopt ($ch, CURLOPT_TIMEOUT, 10); |
| 84 | curl_setopt ($ch, CURLOPT_USERPWD, "$username:$curpw"); |
| 85 | curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); |
| 86 | $result = curl_exec ($ch); |
| 87 | curl_close ($ch); |
| 88 | |
| 89 | if (strpos($result, "401 Access denied") <> 0) { |
| 90 | array_push($msgs, _("Cannot change password! (Is user 'Self Configurable User' ?) (401)")); |
| 91 | return $msgs; |
| 92 | } |
| 93 | |
| 94 | // Get URL from: <FORM METHOD="POST" ACTION="success.html?id=a9375ee5e445775e871d5e1401a963aa"> |
| 95 | |
| 96 | $str = stristr($result, "<FORM"); |
| 97 | $str = substr($str, 0, strpos($str, ">") + 1); |
| 98 | $str = stristr($str, "ACTION="); |
| 99 | $str = substr(stristr($str, "\""),1); |
| 100 | $str = substr($str, 0, strpos($str, "\"")); |
| 101 | |
| 102 | // Extra check to see if the result contains 'html' |
| 103 | if (!stristr($str, "html")) { |
| 104 | array_push($msgs, _("Cannot change password!") . " (1)" ); |
| 105 | return $msgs; |
| 106 | } |
| 107 | |
| 108 | $newurl = $merak_url . $str; |
| 109 | |
| 110 | // Get useraddr from: $useraddr = <INPUT TYPE="HIDDEN" NAME="usraddr" VALUE="mail@hostname.com"> |
| 111 | |
| 112 | $str = stristr($result, "usraddr"); |
| 113 | $str = substr($str, 0, strpos($str, ">") + 1); |
| 114 | $str = stristr($str, "VALUE="); |
| 115 | $str = substr(stristr($str, "\""),1); |
| 116 | $str = substr($str, 0, strpos($str, "\"")); |
| 117 | |
| 118 | // Extra check to see if the result contains '@' |
| 119 | if (!stristr($str, "@")) { |
| 120 | array_push($msgs, _("Cannot change password!") . " (2)" ); |
| 121 | return $msgs; |
| 122 | } |
| 123 | |
| 124 | $useraddr = $str; |
| 125 | |
| 126 | //Include (almost) all input fields from screen |
| 127 | |
| 128 | $contents2 = $result; |
| 129 | |
| 130 | $tag = stristr($contents2, "<INPUT"); |
| 131 | |
| 132 | while ($tag) { |
| 133 | $contents2 = stristr($contents2, "<INPUT"); |
| 134 | $tag = substr($contents2, 0, strpos($contents2, ">") + 1); |
| 135 | |
| 136 | if (GetSub($tag, "TYPE") == "TEXT" || |
| 137 | GetSub($tag, "TYPE") == "HIDDEN" || |
| 138 | GetSub($tag, "TYPE") == "PASSWORD") { |
| 139 | $tags[GetSub($tag, "NAME")] = GetSub($tag, "VALUE"); |
| 140 | } |
| 141 | |
| 142 | if ((GetSub($tag, "TYPE") == "RADIO" || |
| 143 | GetSub($tag, "TYPE") == "CHECKBOX") && |
| 144 | IsChecked($tag)) { |
| 145 | $tags[GetSub($tag, "NAME")] = GetSub($tag, "VALUE"); |
| 146 | } |
| 147 | $contents2 = substr($contents2, 1); |
| 148 | } |
| 149 | |
| 150 | $tags["action"] = $merak_action; |
| 151 | $tags["usraddr"] = $useraddr; |
| 152 | $tags["usr_pass"] = $newpw; |
| 153 | $tags["usr_conf"] = $newpw; |
| 154 | |
| 155 | $str2 = ""; |
| 156 | foreach ($tags as $key => $value) { |
| 157 | $str2 .= $key . "=" . urlencode($value) . "&"; |
| 158 | } |
| 159 | |
| 160 | $str2 = trim($str2, "&"); |
| 161 | |
| 162 | // Change password! |
| 163 | |
| 164 | $ch = curl_init(); |
| 165 | curl_setopt ($ch, CURLOPT_URL, $newurl); |
| 166 | curl_setopt ($ch, CURLOPT_POST, 1); |
| 167 | curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); |
| 168 | curl_setopt ($ch, CURLOPT_FOLLOWLOCATION, 1); |
| 169 | curl_setopt ($ch, CURLOPT_POSTFIELDS, $str2); |
| 170 | $result=curl_exec ($ch); |
| 171 | curl_close ($ch); |
| 172 | |
| 173 | if (strpos($result, "Failure") <> 0) { |
| 174 | array_push($msgs, _("Cannot change password!") . " (3)"); |
| 175 | return $msgs; |
| 176 | } |
| 177 | |
| 178 | return $msgs; |
| 179 | } |
| 180 | |
| 181 | function GetSub($tag, $type) { |
| 182 | |
| 183 | $str = stristr($tag, $type . "="); |
| 184 | $str = substr($str, strlen($type) + 1); |
| 185 | $str = trim($str, '"'); |
| 186 | |
| 187 | if (!strpos($str, " ") === false) { |
| 188 | $str = substr($str, 0, strpos($str, " ")); |
| 189 | $str = trim($str, '"'); |
| 190 | } |
| 191 | |
| 192 | if (!(strpos($str, '"') === false)) { |
| 193 | $str = substr($str, 0, strpos($str, '"')); |
| 194 | } |
| 195 | |
| 196 | $str = trim($str, '>'); |
| 197 | |
| 198 | return $str; |
| 199 | } |
| 200 | |
| 201 | function IsChecked($tag) { |
| 202 | |
| 203 | if (!(strpos(strtolower($tag), 'checked') === false)) { |
| 204 | return true; |
| 205 | } |
| 206 | |
| 207 | return false; |
| 208 | } |