author | Dan Fuhry <dan@enanocms.org> |
Fri, 30 Jun 2017 17:49:12 -0400 | |
changeset 39 | 6212d849ab08 |
permissions | -rw-r--r-- |
39
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1 |
<?php |
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if ( getConfig('yubikey_enable', '1') != '1' ) |
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return true; |
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// hook into auth |
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$plugins->attachHook('login_process_userdata_json', 'return yubikey_auth_hook_json($userinfo, $req["level"], @$req["remember"]);'); |
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8 |
// hook into special page init |
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9 |
$plugins->attachHook('session_started', 'yubikey_add_special_pages();'); |
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// session key security |
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$plugins->attachHook('session_key_calc', 'yubikey_sk_calc($user_id, $key_pieces, $sk_mode);'); |
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12 |
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function yubikey_auth_hook_json(&$userdata, $level, $remember) |
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{ |
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global $db, $session, $paths, $template, $plugins; // Common objects |
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global $lang; |
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18 |
$do_validate_otp = false; |
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$do_validate_user = false; |
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$do_validate_pass = false; |
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|
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$user_flag = ( $level >= USER_LEVEL_CHPREF ) ? YK_SEC_ELEV_USERNAME : YK_SEC_NORMAL_USERNAME; |
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$pass_flag = ( $level >= USER_LEVEL_CHPREF ) ? YK_SEC_ELEV_PASSWORD : YK_SEC_NORMAL_PASSWORD; |
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$auth_log_prefix = ( $level >= USER_LEVEL_CHPREF ) ? 'admin_' : ''; |
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// Sort of a hack: if the password looks like an OTP and the OTP field is empty, use the password as the OTP |
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if ( empty($userdata['yubikey_otp']) && preg_match('/^[cbdefghijklnrtuv]{44}$/', $userdata['password'] ) ) |
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{ |
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$userdata['yubikey_otp'] = $userdata['password']; |
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} |
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// Lockouts removed from here - they're done during preprocessing now. |
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if ( !empty($userdata['username']) ) |
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{ |
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// get flags |
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$q = $db->sql_query('SELECT user_id, user_yubikey_flags FROM ' . table_prefix . "users WHERE " . ENANO_SQLFUNC_LOWERCASE . "(username) = '" . $db->escape(strtolower($userdata['username'])) . "';"); |
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if ( !$q ) |
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$db->die_json(); |
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if ( $db->numrows() < 1 ) |
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{ |
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// Username not found - let the main login function handle it |
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$db->free_result(); |
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return null; |
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} |
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list($user_id, $flags) = $db->fetchrow_num(); |
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$flags = intval($flags); |
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// At the point the username is validated. |
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$do_validate_user = false; |
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$do_validate_pass = $flags & $pass_flag; |
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if ( empty($userdata['yubikey_otp']) ) |
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{ |
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// no OTP was provided |
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// make sure the user has allowed logging in with no OTP |
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if ( !($flags & YK_SEC_ALLOW_NO_OTP) ) |
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{ |
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// We also might have no Yubikeys enrolled. |
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$q = $db->sql_query('SELECT 1 FROM ' . table_prefix . "yubikey WHERE user_id = $user_id;"); |
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if ( !$q ) |
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$db->die_json(); |
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if ( $db->numrows() > 0 ) |
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{ |
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// Yep at least one key is enrolled. |
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// I don't think these should be logged because they'll usually just be innocent mistakes. |
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$db->free_result(); |
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return array( |
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'mode' => 'error', |
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'error' => 'yubiauth_err_must_have_otp' |
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); |
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} |
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// Nope, no keys enrolled, user hasn't enabled Yubikey support |
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$db->free_result(); |
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} |
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// we're ok, use normal password auth |
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return null; |
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} |
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else |
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{ |
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// user did enter an OTP; make sure it's associated with the username |
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83 |
$yubi_uid = $db->escape(substr($userdata['yubikey_otp'], 0, 12)); |
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$q = $db->sql_query('SELECT user_id FROM ' . table_prefix . 'yubikey WHERE yubi_uid = \'' . $yubi_uid . '\';'); |
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if ( !$q ) |
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$db->die_json(); |
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if ( $db->numrows() < 1 ) |
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{ |
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$db->free_result(); |
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return array( |
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'mode' => 'error', |
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'error' => 'yubiauth_err_key_not_authorized' |
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); |
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} |
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list($yubi_pair_uid) = $db->fetchrow_num(); |
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if ( $yubi_pair_uid !== $user_id ) |
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{ |
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return array( |
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'mode' => 'error', |
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'error' => 'yubiauth_err_uid_mismatch' |
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); |
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} |
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$db->free_result(); |
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$do_validate_otp = true; |
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} |
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} |
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else if ( !empty($userdata['yubikey_otp']) ) |
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{ |
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// we have an OTP, but no username to work with |
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$yubi_uid = substr($userdata['yubikey_otp'], 0, 12); |
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if ( !preg_match('/^[cbdefghijklnrtuv]{12}$/', $yubi_uid ) ) |
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{ |
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return array( |
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'mode' => 'error', |
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'error' => 'yubiauth_err_invalid_otp' |
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); |
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} |
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$q = $db->sql_query('SELECT u.user_id, u.username, u.user_yubikey_flags FROM ' . table_prefix . "users AS u\n" |
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|
119 |
. " LEFT JOIN " . table_prefix . "yubikey AS y\n" |
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|
120 |
. " ON ( y.user_id = u.user_id )\n" |
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|
121 |
. " WHERE y.yubi_uid = '$yubi_uid'\n" |
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122 |
. " GROUP BY u.user_yubikey_flags;"); |
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|
123 |
if ( !$q ) |
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|
124 |
$db->_die(); |
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125 |
|
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126 |
if ( $db->numrows() < 1 ) |
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127 |
{ |
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128 |
if ( !$do_validate_pass ) |
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129 |
$session->sql('INSERT INTO ' . table_prefix . "logs(log_type,action,time_id,date_string,author,edit_summary,page_text) VALUES\n" |
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130 |
. ' (\'security\', \'' . $auth_log_prefix . 'auth_bad\', '.time().', \'DEPRECATED\', \'(Yubikey)\', ' |
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131 |
. '\''.$db->escape($_SERVER['REMOTE_ADDR']).'\', ' . intval($level) . ')'); |
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|
132 |
|
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133 |
return array( |
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|
134 |
'mode' => 'error', |
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135 |
'error' => 'yubiauth_err_key_not_authorized' |
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|
136 |
); |
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|
137 |
} |
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|
138 |
|
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139 |
list($user_id, $username, $flags) = $db->fetchrow_num(); |
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140 |
|
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|
141 |
if ( $level > USER_LEVEL_MEMBER ) |
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142 |
{ |
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|
143 |
$session->start(); |
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|
144 |
if ( $session->user_logged_in && ($session->user_id !== $user_id) ) |
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|
145 |
{ |
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146 |
return array( |
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147 |
'mode' => 'error', |
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148 |
'error' => 'yubiauth_err_uid_mismatch' |
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149 |
); |
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|
150 |
} |
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|
151 |
} |
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152 |
|
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153 |
$do_validate_otp = true; |
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154 |
$do_validate_user = $flags & $user_flag; |
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155 |
$do_validate_pass = $flags & $pass_flag; |
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|
156 |
// to complete security logs later |
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157 |
$userdata['username'] = $username; |
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|
158 |
} |
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|
159 |
else |
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160 |
{ |
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|
161 |
// Nothing - no username or OTP. This request can't be used; throw it out. |
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|
162 |
return array( |
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|
163 |
'mode' => 'error', |
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164 |
'error' => 'yubiauth_err_nothing_provided' |
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|
165 |
); |
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|
166 |
} |
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|
167 |
|
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|
168 |
if ( $do_validate_otp ) |
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|
169 |
{ |
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|
170 |
// We need to validate the OTP. |
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|
171 |
$otp_check = yubikey_validate_otp($userdata['yubikey_otp']); |
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|
172 |
if ( !$otp_check['success'] ) |
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|
173 |
{ |
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|
174 |
if ( !$do_validate_pass ) |
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|
175 |
$session->sql('INSERT INTO ' . table_prefix . "logs(log_type,action,time_id,date_string,author,edit_summary,page_text) VALUES\n" |
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|
176 |
. ' (\'security\', \'' . $auth_log_prefix . 'auth_bad\', '.time().', \'DEPRECATED\', \'(Yubikey)\', ' |
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|
177 |
. '\''.$db->escape($_SERVER['REMOTE_ADDR']).'\', ' . intval($level) . ')'); |
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changeset
|
178 |
|
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|
179 |
if ( $otp_check['error'] === 'http_failed' ) |
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|
180 |
{ |
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|
181 |
return array( |
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|
182 |
'mode' => 'error', |
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|
183 |
'error' => 'yubiauth_err_' . $otp_check['error'], |
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|
184 |
'http_error' => $otp_check['http_error'] |
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|
185 |
); |
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diff
changeset
|
186 |
} |
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|
187 |
return array( |
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|
188 |
'mode' => 'error', |
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|
189 |
'error' => 'yubiauth_err_' . $otp_check['error'] |
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diff
changeset
|
190 |
); |
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parents:
diff
changeset
|
191 |
} |
6212d849ab08
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diff
changeset
|
192 |
} |
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diff
changeset
|
193 |
if ( $do_validate_user ) |
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diff
changeset
|
194 |
{ |
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|
195 |
if ( empty($username) ) |
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changeset
|
196 |
{ |
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changeset
|
197 |
return array( |
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Move all files from plugins/ directory to the root
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diff
changeset
|
198 |
'mode' => 'error', |
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|
199 |
'error' => 'yubiauth_err_must_have_username' |
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diff
changeset
|
200 |
); |
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parents:
diff
changeset
|
201 |
} |
6212d849ab08
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Dan Fuhry <dan@enanocms.org>
parents:
diff
changeset
|
202 |
if ( strtolower($username) !== strtolower($userdata['username']) ) |
6212d849ab08
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parents:
diff
changeset
|
203 |
{ |
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Dan Fuhry <dan@enanocms.org>
parents:
diff
changeset
|
204 |
// Username incorrect |
6212d849ab08
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Dan Fuhry <dan@enanocms.org>
parents:
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changeset
|
205 |
if ( !$do_validate_pass ) |
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parents:
diff
changeset
|
206 |
$session->sql('INSERT INTO ' . table_prefix . "logs(log_type,action,time_id,date_string,author,edit_summary,page_text) VALUES\n" |
6212d849ab08
Move all files from plugins/ directory to the root
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parents:
diff
changeset
|
207 |
. ' (\'security\', \'' . $auth_log_prefix . 'auth_bad\', '.time().', \'DEPRECATED\', \'(Yubikey)\', ' |
6212d849ab08
Move all files from plugins/ directory to the root
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changeset
|
208 |
. '\''.$db->escape($_SERVER['REMOTE_ADDR']).'\', ' . intval($level) . ')'); |
6212d849ab08
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parents:
diff
changeset
|
209 |
return array( |
6212d849ab08
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parents:
diff
changeset
|
210 |
'mode' => 'error', |
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Move all files from plugins/ directory to the root
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parents:
diff
changeset
|
211 |
'error' => 'invalid_credentials' |
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parents:
diff
changeset
|
212 |
); |
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parents:
diff
changeset
|
213 |
} |
6212d849ab08
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parents:
diff
changeset
|
214 |
} |
6212d849ab08
Move all files from plugins/ directory to the root
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parents:
diff
changeset
|
215 |
// Do we need to have the password validated? |
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parents:
diff
changeset
|
216 |
if ( $do_validate_pass ) |
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parents:
diff
changeset
|
217 |
{ |
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changeset
|
218 |
if ( empty($userdata['password']) ) |
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diff
changeset
|
219 |
{ |
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parents:
diff
changeset
|
220 |
return array( |
6212d849ab08
Move all files from plugins/ directory to the root
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parents:
diff
changeset
|
221 |
'mode' => 'error', |
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parents:
diff
changeset
|
222 |
'error' => 'yubiauth_err_must_have_password' |
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parents:
diff
changeset
|
223 |
); |
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parents:
diff
changeset
|
224 |
} |
6212d849ab08
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parents:
diff
changeset
|
225 |
// Yes; return and let the login API continue |
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parents:
diff
changeset
|
226 |
return null; |
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parents:
diff
changeset
|
227 |
} |
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parents:
diff
changeset
|
228 |
else |
6212d849ab08
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parents:
diff
changeset
|
229 |
{ |
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changeset
|
230 |
// No password required; validated, issue session key |
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parents:
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changeset
|
231 |
$session->sql('INSERT INTO ' . table_prefix . "logs(log_type,action,time_id,date_string,author,edit_summary,page_text) VALUES\n" |
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parents:
diff
changeset
|
232 |
. ' (\'security\', \'' . $auth_log_prefix . 'auth_good\', '.time().', \'DEPRECATED\', \'' . $db->escape($userdata['username']) . '\', ' |
6212d849ab08
Move all files from plugins/ directory to the root
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changeset
|
233 |
. '\''.$db->escape($_SERVER['REMOTE_ADDR']).'\', ' . intval($level) . ')'); |
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parents:
diff
changeset
|
234 |
|
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Dan Fuhry <dan@enanocms.org>
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changeset
|
235 |
$q = $db->sql_query('SELECT password FROM ' . table_prefix . "users WHERE user_id = $user_id;"); |
6212d849ab08
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parents:
diff
changeset
|
236 |
if ( !$q ) |
6212d849ab08
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Dan Fuhry <dan@enanocms.org>
parents:
diff
changeset
|
237 |
$db->_die(); |
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Move all files from plugins/ directory to the root
Dan Fuhry <dan@enanocms.org>
parents:
diff
changeset
|
238 |
|
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list($password) = $db->fetchrow_num(); |
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$db->free_result(); |
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|
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$session->register_session($user_id, $userdata['username'], $password, intval($level), $remember); |
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return true; |
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244 |
} |
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} |
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246 |
|
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function yubikey_add_special_pages() |
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{ |
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global $db, $session, $paths, $template, $plugins; // Common objects |
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global $lang; |
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251 |
|
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if ( getConfig('yubikey_enable', '1') != '1' ) |
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return true; |
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|
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$paths->add_page(array( |
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'name' => $lang->get('yubiauth_specialpage_yubikey'), |
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'urlname' => 'Yubikey', |
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'namespace' => 'Special', |
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259 |
'visible' => 0, 'protected' => 0, 'comments_on' => 0, 'special' => 0 |
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260 |
)); |
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261 |
} |
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262 |
|
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function yubikey_sk_calc($user_id, &$key_pieces, &$sk_mode) |
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{ |
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global $db, $session, $paths, $template, $plugins; // Common objects |
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// hash the user's yubikeys |
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$q = $db->sql_query('SELECT yubi_uid FROM ' . table_prefix . "yubikey WHERE user_id = $user_id;"); |
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if ( !$q ) |
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$db->_die(); |
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|
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while ( $row = $db->fetchrow() ) |
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{ |
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$key_pieces[] = $row['yubi_uid']; |
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274 |
} |
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275 |
} |
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276 |
|
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277 |
function page_Special_Yubikey() |
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278 |
{ |
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global $db, $session, $paths, $template, $plugins; // Common objects |
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280 |
|
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281 |
header('Content-type: text/javascript'); |
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282 |
/* |
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283 |
if ( isset($_GET['validate_otp']) ) |
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284 |
{ |
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echo enano_json_encode(yubikey_validate_otp($_GET['validate_otp'])); |
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286 |
return true; |
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287 |
} |
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288 |
*/ |
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289 |
if ( isset($_GET['get_flags']) || isset($_POST['get_flags']) ) |
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290 |
{ |
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291 |
$yubi_uid = substr($_REQUEST['get_flags'], 0, 12); |
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292 |
if ( !preg_match('/^[cbdefghijklnrtuv]{12}$/', $yubi_uid) ) |
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293 |
{ |
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294 |
return print enano_json_encode(array( |
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295 |
'mode' => 'error', |
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296 |
'error' => 'invalid_otp' |
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297 |
)); |
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298 |
} |
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299 |
$q = $db->sql_query('SELECT u.user_yubikey_flags FROM ' . table_prefix . "users AS u\n" |
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300 |
. " LEFT JOIN " . table_prefix . "yubikey AS y\n" |
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301 |
. " ON ( y.user_id = u.user_id )\n" |
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302 |
. " WHERE y.yubi_uid = '$yubi_uid'\n" |
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303 |
. " GROUP BY u.user_yubikey_flags;"); |
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304 |
if ( !$q ) |
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305 |
$db->_die(); |
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306 |
|
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307 |
if ( $db->numrows() < 1 ) |
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308 |
{ |
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309 |
return print enano_json_encode(array( |
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310 |
'mode' => 'error', |
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311 |
'error' => 'key_not_authorized' |
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312 |
)); |
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313 |
} |
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314 |
|
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315 |
list($flags) = $db->fetchrow_num(); |
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316 |
|
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317 |
echo enano_json_encode(array( |
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318 |
// We strip YK_SEC_ALLOW_NO_OTP here for security reasons. |
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319 |
'flags' => intval($flags & ~YK_SEC_ALLOW_NO_OTP) |
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|
320 |
)); |
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|
321 |
|
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322 |
return true; |
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|
323 |
} |
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|
324 |
} |
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|
325 |