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dpavlin |
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<? |
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/* |
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Document manager handling for authentification of users |
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based on: |
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* refearer header from remote browser (it's really easy to forge this) |
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* remote IP address |
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* remote DNS hostname |
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Written by Dobrica Pavlinusic <dpavlin@rot13.org> |
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Usage example: |
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docman.conf: |
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$gblUsers = "htusers_header"; |
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.htusers examples: |
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REMOTE_ADDR=10.0.0.3:Dobrica (client ip):auth_header:dpavlin@foo.bar |
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will match exact IP adress |
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remote_hostname=hbreyer2:Dobrica (hostname):auth_header:dpavlin@foo.bar |
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will match exact hostname |
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http_referer=test.foo.bar:Dobrica (by referer):auth_header:dpavlin@foo.bar |
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will match user which comes from site test.foo.bar |
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remote_user=dpavlin:Dobrica (by server http auth):auth_header:dpavlin@foo.bar |
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will match user "dpavlin" which is authetificated using .htaccess |
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*/ |
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$htusers_file=dirname($SCRIPT_FILENAME)."/.htusers"; |
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$cookie_name="docman_autologin"; |
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$cookie_val=md5($htusers_file.$GLOBALS[REMOTE_ADDR]); |
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$cookie_val_force=md5($htusers_file.$GLOBALS[REMOTE_USER]); |
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if (isset($HTTP_COOKIE_VARS[$cookie_name]) && $HTTP_COOKIE_VARS[$cookie_name] == $cookie_val) { |
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// no PHP_AUTH_PW set |
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$login_allowed=1; |
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} elseif (isset($HTTP_COOKIE_VARS[$cookie_name]) && $HTTP_COOKIE_VARS[$cookie_name] == $cookie_val_force) { |
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// PHP_AUTH_PW is set, force login! |
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$force_login_allowed=1; |
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} else { |
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$login_allowed=0; |
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} |
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$force_login_allowed=0; |
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$htusers=fopen($htusers_file,"r"); |
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while($user = fgetcsv($htusers,255,":")) { |
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if ( $user[2]=="auth_header" ) { |
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$tmp = explode("=",$user[0]); |
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if (stristr($tmp[0],"REMOTE_ADDR") && $tmp[1] == $GLOBALS[REMOTE_ADDR]) $login_allowed=1; |
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elseif (stristr($tmp[0],"REMOTE_hostname")) { |
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$remote_hostname=gethostbyaddr($GLOBALS[REMOTE_ADDR]); |
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// remove everything after first dot |
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$remote_hostname=substr($remote_hostname,0,strpos($remote_hostname,".")); |
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if ($tmp[1] == $remote_hostname) $login_allowed=1; |
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} elseif (stristr($tmp[0],"http_referer")) { |
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//error_log("$tmp[0]: $tmp[1] ?? $GLOBALS[HTTP_REFERER]",0); |
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if (isset($GLOBALS[HTTP_REFERER]) && stristr($GLOBALS[HTTP_REFERER],$tmp[1])) { |
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setcookie($cookie_name,$cookie_val_force,time()+3600); |
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$login_allowed=1; |
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//error_log("$tmp[0]: $tmp[1] == $GLOBALS[HTTP_REFERER]",0); |
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} |
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} elseif (stristr($tmp[0],"remote_user") && isset($GLOBALS[AUTH_TYPE]) && isset($GLOBALS[REMOTE_USER])) { |
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if ($GLOBALS[REMOTE_USER] == $tmp[1]) { |
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$force_login_allowed=1; |
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} |
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} |
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//error_log("$tmp[0]: $tmp[1] == $GLOBALS[REMOTE_USER] go!go!go! $login_allowed|$force_login_allowed|$PHP_AUTH_PW",0); |
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if (($login_allowed && !isset($GLOBALS[gblPasswd])) || ($force_login_allowed && isset($GLOBALS[gblPasswd]))) { |
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$gblUserName=$user[1]; |
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// make fake login credentials |
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$GLOBALS[gblPasswd]=$GLOBALS[gblLogin]=$user[0]; |
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$secHash=md5($GLOBALS[gblLogin].$GLOBALS[gblPasswd]); |
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$gblEmail=$user[3]; |
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break ; |
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} |
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} |
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} |
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fclose($htusers); |
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?> |
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