--- docman.php 2002/07/28 12:14:18 1.14
+++ docman.php 2002/07/28 17:51:20 1.20
@@ -20,7 +20,7 @@
//////////////////////////////////////////////////////////////////
// CONFIGURATION OPTIONS
-// error_reporting(4) ; // how verbose ?
+ error_reporting(E_ALL) ; // how verbose ?
// from where to include auth_*.php modules?
$gblIncDir = "/data/docman2";
@@ -84,14 +84,14 @@
LoadLanguage($HTTP_SERVER_VARS["HTTP_ACCEPT_LANGUAGE"]);
// for security and configuration
- $realm=$HTTP_SERVER_VARS[HTTP_HOST];
+ $realm=$HTTP_SERVER_VARS["HTTP_HOST"];
- $fsDocumentRoot = dirname($HTTP_SERVER_VARS[SCRIPT_FILENAME]);
+ $fsDocumentRoot = dirname($HTTP_SERVER_VARS["SCRIPT_FILENAME"]);
if ($fsDocumentRoot == "") Error("Configuration error","Can't get SCRIPT_FILENAME from your web server. Please set \$fsDocumentRoot in \$",1);
// globals for later
- $gblLogin = $HTTP_SERVER_VARS[PHP_AUTH_USER];
- $gblPasswd = $HTTP_SERVER_VARS[PHP_AUTH_PW];
+ $gblLogin = $HTTP_SERVER_VARS["PHP_AUTH_USER"];
+ $gblPasswd = $HTTP_SERVER_VARS["PHP_AUTH_PW"];
//////////////////////////////////////////////////////////////////
@@ -109,9 +109,8 @@
function StartHTML($title,$text="") {
- global $html,$fsDocumentRoot,$HTTP_SERVER_VARS;
+ global $html,$fsDocumentRoot,$gblTitle,$HTTP_SERVER_VARS;
- $title = $gblTitle." ".$title ;
$host = $HTTP_SERVER_VARS["HTTP_HOST"] ;
$self = $HTTP_SERVER_VARS["PHP_SELF"] ;
@@ -138,7 +137,9 @@
} else {
$url .= md5($gblLogin.$gblPasswd);
}
- if (isset($gblLogin) && $gblLogin != "" && ($gblPasswd == "" || !isset($gblPasswd))) {
+ if ( ( (isset($gblLogin) && $gblLogin != "") ||
+ (!isset($gblLogin) || $gblLogin == "")
+ ) && ($gblPasswd == "" || !isset($gblPasswd))) {
$url_title="login";
$url .= "&force_login=1";
} else {
@@ -577,19 +578,30 @@
global $gblEditable, $gblIcon, $gblModDays, $webRoot, $gblHide,
$gblIgnoreUnknownFileType, $gblRepositoryDir,
+ $gblLogin,
$fsRealmDir, $realm, $realm_sep,
- $HTTP_GET_VARS, $html, $realm_config;
+ $html, $realm_config,
+ $HTTP_GET_VARS, $HTTP_SERVER_VARS;
$self = $HTTP_SERVER_VARS["PHP_SELF"] ;
- if ($relDir == "") $relDir = "/";
+ $relDir = chopsl($relDir)."/";
+ $fsDir = $fsRoot.$relDir; // current directory
- $fsDir = $fsRoot.$relDir."/"; // current directory
+ if (!is_dir($fsDir)) Error("Dir not found","Directory $relDir not found on filesystem at $fsDir",1) ;
- if (!is_dir($fsDir)) Error("Dir not found",$relDir,1) ;
+ global $debug;
+ $debug .= "[$gblLogin|$relDir] before >";
+
+ if (! check_perm($relDir,trperm_b))
+ Error("Access denied","User $gblLogin tried to access $relDir without valid trustee.",1);
+ $debug .= "< afeter";
$hide_items=",$gblHide,";
+ $dirList = array();
+ $fileList = array();
+
// read directory contents
if ( !($dir = @opendir($fsDir)) )
Error("Read Access denied",$relDir,1) ;
@@ -614,7 +626,7 @@
closedir($dir) ;
// scan deleted files
- if ( $HTTP_GET_VARS["show_deleted"] == 1 && ($dir = @opendir("$fsDir/.del")) ) {
+ if ( HTTP_GET_VAR("show_deleted") == 1 && ($dir = @opendir("$fsDir/.del")) ) {
while ($item = readdir($dir)) {
if ( substr($item,0,1) == "." || strstr($hide_items,",$item,") || !check_perm($relDir.$item,trperm_w) ) continue ;
$fileList[$item] = ".del/$item" ;
@@ -629,7 +641,7 @@
// start navigation page
$text = "Use this page to add, delete";
- if (! isset($HTTP_GET_VARS[show_deleted])) {
+ if (! isset($HTTP_GET_VARS["show_deleted"])) {
$text .= ", undelete";
}
$text .= " or revise files on this web site." ;
@@ -655,8 +667,7 @@
return $out;
}
- $dsort = $HTTP_GET_VARS[dsort];
- if (! isset($dsort)) $dsort = "name"; // default directory sort
+ if (! HTTP_GET_VAR("dsort")) $dsort = "name"; // default directory sort
$dsort_arr = array(
"name" => array ("rname", "note"),
@@ -665,8 +676,7 @@
"rnote" => array ("name", "note")
);
- $fsort = $HTTP_GET_VARS[fsort];
- if (! isset($fsort)) $fsort = "name"; // default directory sort
+ if (! HTTP_GET_VAR("fsort")) $fsort = "name"; // default directory sort
$fsort_arr = array(
"name" => array ("rname", "note", "date", "size"),
@@ -682,6 +692,7 @@
$D="D=".urlencode($relDir);
function self_args($arr = array()) {
+ global $self;
$arg = implode("&",$arr);
if ($arg) {
return $self."?".$arg;
@@ -904,8 +915,6 @@
global $html, $HTTP_SERVER_VARS;
$self = $HTTP_SERVER_VARS["PHP_SELF"] ;
- if ($relDir == "") $relDir = "/" ;
-
include("$html/UploadPage.html");
} // end function UploadPage
@@ -1232,16 +1241,16 @@
by Vyacheslav Zavadsky
*/
-define(trmask_not,1 << 0);
-define(trmask_clear,1 << 1);
-define(trmask_deny,1 << 2);
-define(trmask_one_level,1 << 3);
-define(trmask_group,1 << 4);
-
-define(trperm_r,1 << 5);
-define(trperm_w,1 << 6);
-define(trperm_b,1 << 7);
-define(trperm_n,1 << 8);
+define('trmask_not',1 << 0);
+define('trmask_clear',1 << 1);
+define('trmask_deny',1 << 2);
+define('trmask_one_level',1 << 3);
+define('trmask_group',1 << 4);
+
+define('trperm_r',1 << 5);
+define('trperm_w',1 << 6);
+define('trperm_b',1 << 7);
+define('trperm_n',1 << 8);
$trustee_a2n = array(
'!' => trmask_not,
@@ -1289,7 +1298,7 @@
$error="".dirname($trustee_php)." must be writable by web server user";
} elseif (file_exists($trustee_php) && !is_writable($trustee_php)) {
$error="trustees cache file $trustee_php exists, but is not writable by web server";
-} elseif (1 || filemtime($trustee_conf) >= filemtime($trustee_php)) {
+} elseif (@filemtime($trustee_conf) >= @filemtime($trustee_php)) {
$fp_php=@fopen($trustee_php,"w");
fputs($fp_php,"\n";
}
}
- $tr_arr[$path][$user] |= $perm;
+ if (isset($tr_arr[$path][$user])) {
+ $tr_arr[$path][$user] |= $perm;
+ } else {
+ $tr_arr[$path][$user] = $perm;
+ }
}
}
}
@@ -1364,10 +1377,10 @@
fclose($fp_php);
}
-if ($error) {
+if (isset($error)) {
Error("Trustee error",$error,1);
} else {
- include("$trustee_php");
+ include_once("$trustee_php");
}
return 1;
@@ -1375,39 +1388,53 @@
}//init_trustee
function in_group($user,$group) {
- return in_array($groups[$group],$user);
+ global $groups;
+ return in_array($user,$groups[$group]);
}
// helper function
function unroll_perm($u,$t,$user,$perm) {
- // check user
+
+ // check user FIX
if ($t & trmask_not && ($u==$user)) continue;
if (!($t & trmask_not) && ($u!=$user)) continue;
if ($t & trmask_deny) {
if ($t & trmask_clear) {
- $perm[deny] &= ~$t;
+ $perm['deny'] &= ~$t;
} else {
- $perm[deny] |= $t;
+ $perm['deny'] |= $t;
}
} elseif ($t & trmask_clear) {
- $perm[allow] &= ~$t;
+ $perm['allow'] &= ~$t;
} else {
- $perm[allow] |= $t;
+ $perm['allow'] |= $t;
}
return $perm;
}// end of helper function
function check_trustee($user,$path) {
global $trustees;
- $perm[allow] = 0;
- $perm[deny] = 0;
+ $perm['allow'] = 0;
+ $perm['deny'] = 0;
+
+ if (! isset($trustees)) Error("Trustees not found","Can't find in-memory trustee structure \$trustees. Probably bug in code. Contact dpavlin@rot13.org",1);
+
+global $debug;
+$debug .= "
check_trustee $path ... ";
+
$path_arr=explode("/",$path);
- $path = "/";
+ $tmppath = "/";
while (count($path_arr)) {
- if (substr($path,strlen($path)-1,1) != "/") $path.="/";
- $path.=array_shift($path_arr);
- $tr = $trustees[$path];
+ $tmppath.=array_shift($path_arr);
+$debug.= ">> $tmppath ";
+
+ # clear one level flag
+ $perm['allow'] &= ~trmask_one_level;
+ $perm['deny'] &= ~trmask_one_level;
+
+ if (! isset($trustees[$tmppath])) continue;
+ $tr = $trustees[$tmppath];
if (isset($tr)) {
// first apply trustee for all
@@ -1416,26 +1443,25 @@
unset($tr['*']);
}
// then apply group policies
- foreach ($tr as $u=>$t) {
- if ($t & trmask_group && in_group($user,$u)) {
+ foreach ($tr as $g=>$t) {
+ if ($t & trmask_group && in_group($user,$g)) {
// resolv user
$t = $t & ~trmask_group;
- $u = $user;
- $perm = unroll_perm($u,$t,$user, $perm);
- unset($tr[$u]);
+ $perm = unroll_perm($user,$t,$user, $perm);
+ unset($tr[$g]);
}
}
- // then apply use policy
+ // then apply user policy
if (isset($tr[$user])) {
$perm = unroll_perm($user,$tr[$user],$user, $perm);
unset($tr[$user]);
}
-
}
+$debug.="d(".display_trustee($perm['deny']).") a(".display_trustee($perm['allow']).") ";
}
-#print "
user: $user path: $path perm: ";
-#print "d: $perm[deny] (".display_trustee($perm[deny]).") a: $perm[allow] (".display_trustee($perm[allow]).")
\n";
+$debug.="
check_trustee: user: $user path: $path==$tmppath perm: ";
+$debug.="d: ".$perm['deny']." (".display_trustee($perm['deny']).") a: ".$perm['allow']." (".display_trustee($perm['allow']).")
\n";
return $perm;
}
@@ -1445,13 +1471,14 @@
global $gblLogin,$HAVE_TRUSTEE;
global $debug;
-$debug.="
check_perm: $path test perm ".display_trustee($perm)."
\n";
+$debug.="
check_perm: on $path for perm ".display_trustee($trperm)."
\n";
+
$return = ! $HAVE_TRUSTEE;
if ($HAVE_TRUSTEE) {
$perm = check_trustee($gblLogin,$path);
-$debug.=" d: $perm[deny] (".display_trustee($perm[deny]).") a: $perm[allow] (".display_trustee($perm[allow]).") perm: $trperm";
- if ($perm[deny] & $trperm) $return=0;
- elseif ($perm[allow] & $trperm) $return=1;
+$debug.=" d: ".$perm['deny']." (".display_trustee($perm['deny']).") a: ".$perm['allow']." (".display_trustee($perm['allow']).") perm to have: $trperm (".display_trustee($trperm).")";
+ if ($perm['deny'] & $trperm) $return=0;
+ elseif (($perm['allow'] & $trperm) == $trperm) $return=1;
}
$debug.=" return: $return
\n";
return($return);
@@ -1496,13 +1523,38 @@
}
//////////////////////////////////////////////////////////////////
+
+// functions to move HTTP server variables to global namespace
+// [replacement for register_globals in php.ini]
+
+function HTTP_GET_VAR($var) {
+ global $HTTP_GET_VARS, $GLOBALS;
+ if (isset($HTTP_GET_VARS[$var])) {
+ $GLOBALS[$var] = stripSlashes($HTTP_GET_VARS[$var]);
+ return $GLOBALS[$var];
+ }
+}
+
+function HTTP_POST_VAR($var) {
+ global $HTTP_GET_VARS, $GLOBALS;
+ if (isset($HTTP_GET_VARS[$var])) {
+ $GLOBALS[$var] = stripSlashes($HTTP_GET_VARS[$var]);
+ return $GLOBALS[$var];
+ }
+}
+
+//////////////////////////////////////////////////////////////////
+
+function Warn($text) {
+}
+
+//////////////////////////////////////////////////////////////////
// MAIN PROGRAM
$gblFilePerms = 0640 ; // default for new files
$gblDirPerms = 0750 ; // default for new dirs
- $STYLE = $HTTP_GET_VARS[STYLE];
- if (isset($STYLE) && $STYLE == "get") {
+ if (isset($HTTP_GET_VARS["STYLE"]) && $HTTP_GET_VARS["STYLE"] == "get") {
include("$html/docman.css");
exit;
}
@@ -1522,8 +1574,8 @@
}
// try to add dir to script name to realm var
- if (is_dir("$fsRealmDir/$realm/".dirname($HTTP_SERVER_VARS[SCRIPT_NAME]))) {
- $realm .= dirname($HTTP_SERVER_VARS[SCRIPT_NAME]);
+ if (is_dir("$fsRealmDir/$realm/".dirname($HTTP_SERVER_VARS["SCRIPT_NAME"]))) {
+ $realm .= dirname($HTTP_SERVER_VARS["SCRIPT_NAME"]);
$realm_sep = "/";
} else {
$realm_sep = ".";
@@ -1547,6 +1599,10 @@
Error("Configuration error","Can't find user handling module at $gblIncDir/htusers/$gblUsers.php ! Please fix $realm_config");
}
+ // take additional login vars
+ HTTP_GET_VAR("relogin");
+ HTTP_GET_VAR("force_login");
+
// if no password, or empty password logout
if (
isset($gblLogin) && (
@@ -1571,11 +1627,12 @@
// get ACL informations
$HAVE_TRUSTEE = init_trustee();
- if (strtolower($gblLogin) == "anonymous" || !isset($gblPasswd)) {
- $perm = check_trustee($gblLogin,$path);
+ if (strtolower($gblLogin) == "anonymous" || !isset($gblLogin)) {
+ $perm = check_trustee("anonymous","/");
// browsing must be explicitly allowed for root directory
// of repository for anonymous user to work!
- if ($perm[allow] & trperm_b) {
+ if ($perm['allow'] & trperm_b) {
+ $gblLogin = $gblPasswd = "anonymous";
$secHash = md5($gblLogin.$gblPasswd);
$gblUserName = "Anonymous user";
}
@@ -1595,32 +1652,32 @@
if ($HTTP_SERVER_VARS["REQUEST_METHOD"] == "POST") {
// take variables from server
- $FN=stripSlashes($HTTP_POST_VARS["FN"]);
- $DIR=stripSlashes($HTTP_POST_VARS["DIR"]);
- $RELPATH=stripSlashes($HTTP_POST_VARS["RELPATH"]);
- $T=stripSlashes($HTTP_POST_VARS["T"]);
- $CONFIRM=stripSlashes($HTTP_POST_VARS["CONFIRM"]);
-
- check_filename($FN);
- check_dirname($DIR);
- check_dirname($RELPATH);
+ if (HTTP_POST_VAR("FN")) check_filename($FN);
+ if (HTTP_POST_VAR("DIR")) {
+ check_dirname($DIR);
+ $relDir = $DIR;
+ } else {
+ trigger_error("Can't get DIR",E_USER_WARNING);
+ }
+ if (HTTP_POST_VAR("RELPATH")) check_dirname($RELPATH);
+ HTTP_POST_VAR("T");
+ HTTP_POST_VAR("CONFIRM");
- $relDir = $DIR;
} else {
// get
- $A=stripSlashes($HTTP_GET_VARS["A"]);
- $D=stripSlashes(urldecode($HTTP_GET_VARS["D"]));
- $F=stripSlashes($HTTP_GET_VARS["F"]);
-
- check_filename($F);
- check_dirname($D);
-
- $relDir = $D;
+ HTTP_GET_VAR("A");
+ if (HTTP_GET_VAR("D")) {
+ check_dirname($D);
+ $D=urldecode($D);
+ $relDir = $D;
+ } else {
+ //trigger_error("Can't get D",E_USER_WARNING);
+ $relDir = "/";
+ }
+ if (HTTP_GET_VAR("F")) check_filename($F);
}
- if ($relDir == "/") $relDir = "" ;
-
- $relScriptDir = dirname($SCRIPT_NAME) ;
+ $relScriptDir = dirname($HTTP_SERVER_VARS["SCRIPT_NAME"]) ;
// i.e. /docman
// start on server root
@@ -1628,7 +1685,9 @@
// i.e. /home/httpd/repository
$fsDir = $gblFsRoot . $relDir ; // current directory
- if ( !is_dir($fsDir) ) Error("Dir not found",$relDir,1) ;
+ if ( !is_dir($fsDir) ) Error("Dir not found","Can't find $relDir which points to $fsDir",1) ;
+
+ if ($relDir == "") $relDir="/";
if (isset($HTTP_SERVER_VARS["HTTPS"]) && $HTTP_SERVER_VARS["HTTPS"] == "on") {
$webRoot = "https://";
@@ -1637,7 +1696,7 @@
}
$webRoot .= $HTTP_SERVER_VARS["HTTP_HOST"] . $relScriptDir;
- switch ($HTTP_POST_VARS["POSTACTION"]) {
+ if (HTTP_POST_VAR("POSTACTION")) switch ($POSTACTION) {
case "UPLOAD" :
$FN_name=stripSlashes($HTTP_POST_FILES["FN"]["tmp_name"]);
$FN=stripSlashes($HTTP_POST_FILES["FN"]["name"]);
@@ -1805,7 +1864,7 @@
}
// common to all POSTs : redirect to directory view ($relDir)
- if ( $POSTACTION != "" ) {
+ if (isset($POSTACTION)) {
$tstr = $PHP_SELF . "?D=" . urlencode($relDir) ;
header("Location: " . $tstr) ;
exit ;
@@ -1821,11 +1880,13 @@
// $A=I : include file .$F.php from [$gblIncDir|realm]/include_php
// default : display directory $D
- switch ($A) {
+ if (isset($A)) switch ($A) {
case "U" :
// upload to $relDir
+ if (! check_perm($relDir, trperm_w))
+ Error("Write access denied","You don't have permission to write in $relDir");
if (!is_writeable($gblFsRoot . $relDir))
- Error("Write access denied",$relDir) ;
+ Error("Write access denied","User $gblLogin has permission on $relDir, but directory is not writable",1);
$text = "Use this page to upload a single " ;
$text .= "file to $realm." ;
StartHTML("(Upload Page)", $text) ;
@@ -1875,15 +1936,12 @@
case "I" :
if (! isset($F) || $F == "")
Error("Can't find file to include","Your request didn't specify file to include which should be in variable F like $HTTP_SERVER_VARS[REQUEST_URI]&F=include_php_file",1);
- if (file_exists("$gblIncDir/include_php/$F.php")) {
- $inc_file="$gblIncDir/include_php/${F}.php";
- } elseif (file_exists("$fsRealmDir/$realm/$F.php")) {
- $inc_file="$fsRealmDir/$realm/${F}.php";
- } else {
- Error("Can't find file to include","Can't find include file $F.php in $gblIncDir/include_php/ nor $fsRealmDir/$realm/",1);
+ $inc_file="$fsRealmDir/$realm".$realm_sep.$F.".php";
+ if (! file_exists($inc_file)) {
+ Error("Can't find file to include","Can't find include file $F.php in $fsRealmDir/$realm/. Meybe you should copy $gblIncDir/include_php/$F.php to $inc_file ?",1);
}
if (!is_readable($inc_file))
- Error("Read access to include file denied","Can't read PHP include file $inc_file. Fix permissions on it.");
+ Error("Read access to include file denied","Can't read PHP include file $inc_file. Fix permissions on it.",1);
$text = "Your include file should define \$text variable which holds this text and \$title variable which is page title";
$title = "You should define \$title variable with page title";
include($inc_file);