#
# Some shared sub routines
#
-# Author: Patrick Canterino <patshaping@gmx.net>
-# Last modified: 09-22-2003
+# Author: Patrick Canterino <patrick@patshaping.de>
+# Last modified: 2005-07-23
#
use strict;
use vars qw(@EXPORT);
-use Carp qw(croak);
+use CGI qw(redirect
+ escape
+ virtual_host
+ https);
use Cwd qw(abs_path);
-use File::Basename;
use File::Spec;
### Export ###
@EXPORT = qw(check_path
clean_path
- filemode
+ devedit_reload
+ dos_wildcard_match
+ encode_html
+ equal_url
+ file_name
+ is_forbidden_file
+ mode_string
+ multi_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
$root = abs_path($root);
$root = File::Spec->canonpath($root);
- $path =~ s!^/{1}!!;
- $path = $root."/".$path;
+ $path =~ tr!\\!/!;
+ $path =~ s!^/+!!;
+ $path = $root.'/'.$path;
- unless(-d $path)
- {
- # The path points to a file
- # We have to extract the directory name and create the absolute path
-
- my @pathinfo = fileparse($path);
+ # We extract the last part of the path and create the absolute path
- # This is only to avoid errors
+ my $first = upper_path($path);
+ $first = File::Spec->canonpath($first);
+ $first = abs_path($first);
- my $basename = $pathinfo[0] || '';
- my $dir = $pathinfo[1] || '';
- my $ext = $pathinfo[2] || '';
+ my $last = file_name($path);
+ $last = '' if($last eq '.');
- $dir = abs_path($dir);
-
- $path = $dir."/".$basename.$ext;
- }
- else
+ if($last eq '..' || ($^O eq 'MSWin32' && $last =~ m!^\.\.\.+$!))
{
- $path = abs_path($path);
+ $first = abs_path($first.'/'.$last);
+ $last = '';
}
- $path = File::Spec->canonpath($path);
+ $path = File::Spec->canonpath($first.'/'.$last);
# Check if the path is above the root directory
- return if(index($path,$root) == -1);
+ return if(index($path,$root) != 0);
# 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!/$! && -d $path);
+ $short_path =~ tr!\\!/!;
+ $short_path = '/'.$short_path if($short_path !~ m!^/!);
+ $short_path = $short_path.'/' if($short_path !~ m!/$! && -d $path && not -l $path);
return ($path,$short_path);
}
return $path;
}
-# filemode()
+# devedit_reload()
#
-# Creates a readable string of a UNIX filemode number
-# (copied from Tool.pm of Dev-Editor 0.1.4)
+# Create a HTTP redirection header to load Dev-Editor
+# with some other parameters
#
-# Params: Filemode as number
+# Params: Hash Reference (will be merged to a query string)
+# (optional)
#
-# Return: Filemode as readable string
+# Return: HTTP redirection header (Scalar Reference)
-sub filemode($)
+sub devedit_reload(;$)
{
- my ($modestring, $ur, $uw, $ux, $gr, $gw, $gx, $or, $ow, $ox);
- my $mode = shift;
-
- $ur = ($mode & 0400) ? "r" : "-"; # User Read
- $uw = ($mode & 0200) ? "w" : "-"; # User Write
- $ux = ($mode & 0100) ? "x" : "-"; # User eXecute
- $gr = ($mode & 0040) ? "r" : "-"; # Group Read
- $gw = ($mode & 0020) ? "w" : "-"; # Group Write
- $gx = ($mode & 0010) ? "x" : "-"; # Group eXecute
- $or = ($mode & 0004) ? "r" : "-"; # Other Read
- $ow = ($mode & 0002) ? "w" : "-"; # Other Write
- $ox = ($mode & 0001) ? "x" : "-"; # Other eXecute
-
- # build a readable mode string (rwxrwxrwx)
- return $ur . $uw . $ux . $gr . $gw . $gx . $or . $ow . $ox;
+ 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 $query = '';
+
+ if(ref($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;
}
-# upper_path()
+# 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($$)
+{
+ my ($pattern,$string) = @_;
+
+ # The following part is stolen from File::DosGlob
+
+ # escape regex metachars but not glob chars
+ $pattern =~ s:([].+^\-\${}[|]):\\$1:g;
+ # and convert DOS-style wildcards to regex
+ $pattern =~ s/\*/.*/g;
+ $pattern =~ s/\?/.?/g;
+
+ return ($string =~ m|^$pattern$|is);
+}
+
+# encode_html()
+#
+# Encode HTML control characters (< > " &)
+#
+# Params: String to encode
+#
+# Return: Encoded string
+
+sub encode_html($)
+{
+ my $string = shift;
+
+ $string =~ s/&/&/g;
+ $string =~ s/</</g;
+ $string =~ s/>/>/g;
+ $string =~ s/"/"/g;
+
+ return $string;
+}
+
+# equal_url()
+#
+# Create URL equal to a file or directory
+#
+# Params: 1. HTTP root
+# 2. Relative path
+#
+# Return: Formatted link (String)
+
+sub equal_url($$)
+{
+ my ($root,$path) = @_;
+ my $url;
+
+ $root =~ s!/+$!!;
+ $path =~ s!^/+!!;
+ $url = $root.'/'.$path;
+
+ return $url;
+}
+
+# file_name()
+#
+# Return the last part of a path
+#
+# Params: Path
+#
+# Return: Last part of the path
+
+sub file_name($)
+{
+ my $path = shift;
+ $path =~ tr!\\!/!;
+
+ unless($path =~ m!^/+$! || ($^O eq 'MSWin32' && $path =~ m!^[a-z]:/+$!i))
+ {
+ $path =~ s!/+$!!;
+ $path = substr($path,rindex($path,'/')+1);
+ }
+
+ return $path;
+}
+
+# is_forbidden_file()
#
-# Truncate a path in one of the following ways:
+# Check if a file is in the list of forbidden files
+#
+# Params: 1. Array Reference containing the list
+# 2. Filename to check
+#
+# Return: Status code (Boolean)
+
+sub is_forbidden_file($$)
+{
+ my ($list,$file) = @_;
+ $file =~ s!/+$!!g;
+
+ foreach my $entry(@$list)
+ {
+ return 1 if($file eq $entry);
+ return 1 if(index($file,$entry.'/') == 0);
+ }
+
+ return;
+}
+
+# mode_string()
+#
+# Convert a file mode number into a human readable string (rwxr-x-r-x)
+# (also supports SetUID, SetGID and Sticky Bit)
+#
+# Params: File mode number
+#
+# Return: Human readable mode string
+
+sub mode_string($)
+{
+ 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 $string;
+}
+
+# multi_string()
+#
+# Create a Hash Reference containing three forms of a string
+#
+# Params: String
+#
+# Return: Hash Reference:
+# normal => Normal form of the string
+# html => HTML encoded form (see encode_html())
+# url => URL encoded form
+
+sub multi_string($)
+{
+ my $string = shift;
+ my %multi;
+
+ $multi{'normal'} = $string;
+ $multi{'html'} = encode_html($string);
+ $multi{'url'} = escape($string);
+
+ return \%multi;
+}
+
+# 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.
+# Remove the last part of a path
+# (the resulting path contains a trailing slash)
#
# Params: Path
#
my $path = shift;
$path =~ tr!\\!/!;
- unless($path eq "/")
+ unless($path =~ m!^/+$! || ($^O eq 'MSWin32' && $path =~ m!^[a-z]:/+$!i))
{
- $path = substr($path,0,-1) if($path =~ m!/$!);
- $path = substr($path,0,rindex($path,"/"));
- $path = $path."/";
+ $path =~ s!/+$!!;
+ $path = substr($path,0,rindex($path,'/')+1);
}
return $path;
git.p6c8.net / devedit.git / blobdiff