Do not allow removing or renaming the root directory

[devedit.git] / modules / Tool.pm

diff --git a/modules/Tool.pm b/modules/Tool.pm
index 9e89e43e6ad71e0ad1e13cafe1c06bad5d428ef8..840c13433085250eca4bf9fdad937486ff9a8633 100644 (file)
--- a/modules/Tool.pm
+++ b/modules/Tool.pm
@@ -6,13 +6,18 @@ package Tool;
 # Some shared sub routines
 #
 # Author:        Patrick Canterino <patshaping@gmx.net>
-# Last modified: 2003-10-03
+# Last modified: 2004-07-17
 #
 
 use strict;
 
 use vars qw(@EXPORT);
 
+use CGI qw(redirect
+           escape
+           virtual_host
+           https);
+
 use Cwd qw(abs_path);
 use File::Spec;
 
@@ -22,6 +27,8 @@ use base qw(Exporter);
 
 @EXPORT = qw(check_path
              clean_path
+             devedit_reload
+             equal_url
              file_name
              upper_path);
 
@@ -74,7 +81,7 @@ sub check_path($$)
 
  my $short_path = substr($path,length($root));
  $short_path =~ tr!\\!\/!;
- $short_path = "/".$short_path unless($short_path =~ m!^/!);
+ $short_path = "/".$short_path if($short_path !~ m!^/!);
  $short_path = $short_path."/" if($short_path !~ m!/$! && -d $path);
 
  return ($path,$short_path);
@@ -98,9 +105,83 @@ sub clean_path($)
  return $path;
 }
 
+# devedit_reload()
+#
+# Create a HTTP redirection header to load Dev-Editor
+# with some other parameters
+#
+# Params: Hash Reference (will be merged to a query string)
+#
+# Return: HTTP redirection header (Scalar Reference)
+
+sub devedit_reload($)
+{
+ my $params = shift;
+
+ # Detect the protocol (simple HTTP or SSL encrypted HTTP)
+ # and check if the server listens on the default port
+
+ my $protocol = "";
+ my $port     = "";
+
+ if(https)
+ {
+  # SSL encrypted HTTP (HTTPS)
+
+  $protocol = "https";
+  $port     = ":".$ENV{'SERVER_PORT'} if($ENV{'SERVER_PORT'} != 443);
+ }
+ else
+ {
+  # Simple HTTP
+
+  $protocol = "http";
+  $port     = ":".$ENV{'SERVER_PORT'} if($ENV{'SERVER_PORT'} != 80);
+ }
+
+ # The following code is grabbed from Template::_query of
+ # Andre Malo's selfforum (http://sourceforge.net/projects/selfforum/)
+ # and modified by Patrick Canterino
+
+ my $query = '?'.join ('&' =>
+    map {
+      (ref)
+      ? map{escape ($_).'='.escape ($params -> {$_})} @{$params -> {$_}}
+      : escape ($_).'='.escape ($params -> {$_})
+    } keys %$params
+  );
+
+ # Create the redirection header
+
+ my $header = redirect($protocol."://".virtual_host.$port.$ENV{'SCRIPT_NAME'}.$query);
+
+ return \$header;
+}
+
+# equal_url()
+#
+# Create URL equal to a file or directory
+#
+# Params: 1. HTTP root
+#         2. Relative path
+#
+# Return: Formatted link (String)
+
+sub equal_url($$)
+{
+ my ($root,$path) = @_;
+ my $url;
+
+ $root =~ s!/$!!;
+ $path =~ s!^/!!;
+ $url  =  $root."/".$path;
+
+ return $url;
+}
+
 # file_name()
 #
-# Returns the last path of a filename
+# Return the last part of a path
 #
 # Params: Path
 #
@@ -122,12 +203,7 @@ sub file_name($)
 
 # upper_path()
 #
-# Truncate a path in one of the following ways:
-#
-# - If the path points to a directory, the upper directory
-#   will be returned.
-# - If the path points to a file, the directory containing
-#   the file will be returned.
+# Cut away the last part of a path
 #
 # Params: Path
 #
@@ -141,8 +217,7 @@ sub upper_path($)
  unless($path eq "/")
  {
   $path = substr($path,0,-1) if($path =~ m!/$!);
-  $path = substr($path,0,rindex($path,"/"));
-  $path = $path."/";
+  $path = substr($path,0,rindex($path,"/")+1);
  }
 
  return $path;