#
# Some shared sub routines
#
-# Author: Patrick Canterino <patshaping@gmx.net>
-# Last modified: 2003-10-27
+# Author: Patrick Canterino <patrick@patshaping.de>
+# Last modified: 2004-12-25
#
use strict;
use vars qw(@EXPORT);
-use CGI qw(redirect);
+use CGI qw(redirect
+ escape
+ virtual_host
+ https);
+
use Cwd qw(abs_path);
use File::Spec;
@EXPORT = qw(check_path
clean_path
devedit_reload
+ dos_wildcard_match
+ equal_url
file_name
+ mode_string
upper_path);
# check_path()
#
-# Check, if a virtual path is above a virtual root directory
+# Check if a virtual path is above a virtual root directory
# (currently no check if the path exists - check otherwise!)
#
# Params: 1. Virtual root directory
$path =~ s!^/{1}!!;
$path = $root."/".$path;
- unless(-d $path)
- {
- # The path points to a file
- # We have to extract the directory name and create the absolute path
+ # We extract the last part of the path and create the absolute path
- my $dir = upper_path($path);
- my $file = file_name($path);
+ my $first = upper_path($path);
+ my $last = file_name($path);
- $dir = abs_path($dir);
- $path = $dir."/".$file;
- }
- else
- {
- $path = abs_path($path);
- }
+ $first = abs_path($first);
+ $path = $first."/".$last;
- $path = File::Spec->canonpath($path);
+ $first = File::Spec->canonpath($first);
+ $path = File::Spec->canonpath($path);
# Check if the path is above the root directory
- return if(index($path,$root) == -1);
+ return if(index($path,$root) != 0);
+ return if($first eq $root && $last =~ m!^(/|\\)?\.\.(/|\\)?$!);
# Create short path name
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,$short_path);
# with some other parameters
#
# Params: Hash Reference (will be merged to a query string)
+# (optional)
#
# Return: HTTP redirection header (Scalar Reference)
-sub devedit_reload($)
+sub devedit_reload(;$)
{
my $params = shift;
- my @list;
- while(my ($param,$value) = each(%$params))
+ # Detect the protocol (simple HTTP or SSL encrypted HTTP)
+ # and check if the server listens on the default port
+
+ my $protocol = "";
+ my $port = "";
+
+ if(https)
{
- push(@list,$param."=".$value);
+ # 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("&",@list);
- my $header = redirect("http://$ENV{'HTTP_HOST'}$ENV{'SCRIPT_NAME'}?$query");
+ my $query = "";
+
+ if(ref($params) eq "HASH")
+ {
+ $query = '?'.join ('&' =>
+ map {
+ (ref)
+ ? map{escape ($_).'='.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;
}
+# dos_wildcard_match()
+#
+# Check if a string matches against a DOS-style wildcard
+#
+# Params: 1. Pattern
+# 2. String
+#
+# Return: Status code (Boolean)
+
+sub dos_wildcard_match($$)
+{
+ my ($pattern,$string) = @_;
+
+ # The following part is stolen from File::DosGlob
+
+ # escape regex metachars but not glob chars
+ $pattern =~ s:([].+^\-\${}[|]):\\$1:g;
+ # and convert DOS-style wildcards to regex
+ $pattern =~ s/\*/.*/g;
+ $pattern =~ s/\?/.?/g;
+
+ return ($string =~ m|^$pattern$|is);
+}
+
+# equal_url()
+#
+# Create URL equal to a file or directory
+#
+# Params: 1. HTTP root
+# 2. Relative path
+#
+# Return: Formatted link (String)
+
+sub equal_url($$)
+{
+ my ($root,$path) = @_;
+ my $url;
+
+ $root =~ s!/$!!;
+ $path =~ s!^/!!;
+ $url = $root."/".$path;
+
+ return $url;
+}
+
# file_name()
#
-# Returns the last path of a path
+# Return the last part of a path
#
# Params: Path
#
return $path;
}
-# upper_path()
+# mode_string()
+#
+# Convert a file mode number into a human readable string (rwxr-x-r-x)
+# (also supports SetUID, SetGID and Sticky Bit)
#
-# Truncate a path in one of the following ways:
+# Params: File mode number
+#
+# Return: Human readable mode string
+
+sub mode_string($)
+{
+ my $mode = shift;
+ my $string = "";
+
+ # User
+
+ $string = ($mode & 00400) ? "r" : "-";
+ $string .= ($mode & 00200) ? "w" : "-";
+ $string .= ($mode & 00100) ? (($mode & 04000) ? "s" : "x") :
+ ($mode & 04000) ? "S" : "-";
+
+ # Group
+
+ $string .= ($mode & 00040) ? "r" : "-";
+ $string .= ($mode & 00020) ? "w" : "-";
+ $string .= ($mode & 00010) ? (($mode & 02000) ? "s" : "x") :
+ ($mode & 02000) ? "S" : "-";
+
+ # Other
+
+ $string .= ($mode & 00004) ? "r" : "-";
+ $string .= ($mode & 00002) ? "w" : "-";
+ $string .= ($mode & 00001) ? (($mode & 01000) ? "t" : "x") :
+ ($mode & 01000) ? "T" : "-";
+
+ return $string;
+}
+
+# upper_path()
#
-# - 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
#
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