# #
# File: shared/CheckRFC.pm #
# #
-# Authors: Andre Malo <nd@o3media.de>, 2001-03-30 #
+# Authors: Andre Malo <nd@o3media.de>, 2001-04-14 #
# #
# Description: implement several string checks on RFC correctness #
# #
################################################################################
use strict;
-use vars qw(%url $email @EXPORT);
+use vars qw(
+ $v56
+ %url
+ @email
+ @EXPORT
+ @ISA
+);
-use autouse 'Carp' => qw(croak);
+$v56 = eval q[
+ local $SIG{__DIE__};
+ require 5.6.0;
+];
+
+use Carp qw(croak);
################################################################################
#
# Export
#
-use base qw(Exporter);
-@EXPORT = qw(is_URL is_email);
+require Exporter;
+@ISA = qw(Exporter);
+
+@EXPORT = qw(
+ is_URL
+ is_email
+);
### is_URL ($@) ################################################################
#
#
# Params: $string string to check
# @schemes possible URL schemes in $string
-# qw(http ftp news nntp telnet gopher wais mailto file prospero)
+# qw( http strict_http ftp news nntp telnet
+# gopher wais mailto strict_mailto file prospero)
# if there's no scheme given, 'http' is default
# use ':ALL' (without quotes) for all schemes
#
#
sub is_URL ($@) {
my ($string, @schemes) = @_;
+
+ return unless (defined ($string) and length ($string));
+
@schemes = qw(http) unless (@schemes);
@schemes = keys %url if (@schemes == 1 and $schemes[0] eq ':ALL');
for (@schemes) {
croak "unknown url scheme '$_'" unless exists $url{$_};
- return 1 if $string =~ /$url{$_}/;
+ unless (/mailto/) {
+ return 1 if ($string =~ /$url{$_}/);
+ }
+ else {
+ return unless ($string =~ /^mailto:(.+)/);
+
+ if ($_ eq 'mailto') {
+ return 1 if (is_email ($1));
+ }
+ elsif ($_ eq 'strict_mailto') {
+ return 1 if (is_email ($1,1));
+ }
+ }
}
# no match => return false
#
# check email (comments can be nested)
#
-# Params: $string string to check
+# Params: $string - string to check
+# $strict - (optional) check strict RFC syntax (no TLD needed) if true
#
# Return: Status code (Bool)
#
-sub is_email ($) {
+sub is_email ($;$) {
my $string = shift;
+ my $strict = shift;
# false if any non-ascii chars
+ return unless (defined ($string) and length ($string));
return if $string =~ /[\200-\377]/;
# remove nested comments
- while ($string =~ s/\([^()]*\)//g) {};
+ 1 while ($string =~ s/\([^()]*\)//g);
+ #$string =~ s/^\s+//;
+ #$string =~ s/\s+$//;
+
+ return ($string =~ /^$email[0]$/) unless $strict;
- return ($string =~ /^$email$/);
+ return ($string =~ /^$email[1]$/);
}
### BEGIN # (1) ################################################################
BEGIN {
# Thanx to J. Friedl:
- my $esc = '\\\\';
+ my $esc = '\\\\';
my $Period = '\.';
- my $space = '\040';
+ my $space = '\040';
my $tab = '\t';
- my $OpenBR = '\[';
+ my $OpenBR = '\[';
my $CloseBR = '\]';
- my $OpenParen = '\(';
+ my $OpenParen = '\(';
my $CloseParen = '\)';
- my $NonASCII = '\x80-\xff';
+ my $NonASCII = '\x80-\xff';
my $ctrl = '\000-\037';
- my $CRlist = '\n\015';
- my $qtext = qq/[^$esc$NonASCII$CRlist\"]/;
- my $dtext = qq/[^$esc$NonASCII$CRlist$OpenBR$CloseBR]/;
+ my $CRlist = '\n\015';
+ my $qtext = qq/[^$esc$NonASCII$CRlist\"]/;
+ my $dtext = qq/[^$esc$NonASCII$CRlist$OpenBR$CloseBR]/;
my $quoted_pair = qq< $esc [^$NonASCII] >;
- my $ctext = qq< [^$esc$NonASCII$CRlist()] >;
- my $Cnested = qq< $OpenParen $ctext* (?: $quoted_pair $ctext* )* $CloseParen >;
- my $comment = qq< $OpenParen $ctext* (?: (?: $quoted_pair | $Cnested ) $ctext* )* $CloseParen >;
- my $X = qq< [$space$tab]* (?: $comment [$space$tab]* )* >;
+ my $ctext = qq< [^$esc$NonASCII$CRlist()] >;
+ my $Cnested = qq< $OpenParen $ctext* (?: $quoted_pair $ctext* )* $CloseParen >;
+ my $comment = qq< $OpenParen $ctext* (?: (?: $quoted_pair | $Cnested ) $ctext* )* $CloseParen >;
+ my $X = qq< [$space$tab]* (?: $comment [$space$tab]* )* >;
my $atom_char = qq/[^($space)<>\@,;:\".$esc$OpenBR$CloseBR$ctrl$NonASCII]/;
- my $atom = qq< $atom_char+ (?!$atom_char) >;
- my $quoted_str = qq< \" $qtext * (?: $quoted_pair $qtext * )* \" >;
- my $word = qq< (?: $atom | $quoted_str ) >;
+ my $atom = qq< $atom_char+ (?!$atom_char) >;
+ my $quoted_str = qq< \" $qtext * (?: $quoted_pair $qtext * )* \" >;
+ my $word = qq< (?: $atom | $quoted_str ) >;
my $domain_ref = $atom;
my $domain_lit = qq< $OpenBR (?: $dtext | $quoted_pair )* $CloseBR >;
my $sub_domain = qq< (?: $domain_ref | $domain_lit ) $X >;
- my $domain = qq< $sub_domain (?: $Period $X $sub_domain )* >;
- my $route = qq< \@ $X $domain (?: , $X \@ $X $domain )* : $X >;
- my $local_part = qq< $word $X (?: $Period $X $word $X )* >;
- my $addr_spec = qq< $local_part \@ $X $domain >;
- my $route_addr = qq[ < $X (?: $route )? $addr_spec > ];
- my $phrase_ctrl = '\000-\010\012-\037';
- my $phrase_char = qq/[^()<>\@,;:\".$esc$OpenBR$CloseBR$NonASCII$phrase_ctrl]/;
- my $phrase = qq< $word $phrase_char * (?: (?: $comment | $quoted_str ) $phrase_char * )* >;
- $email = qq< $X (?: $addr_spec | $phrase $route_addr ) >;
- $email = qr /$email/x;
+ my $domain;
+
+ @email = ();
+ for $domain (
+ qq< $sub_domain (?: $Period $X $sub_domain )* $Period [A-Za-z][A-Za-z][A-Za-z]?[A-Za-z]? >,
+ qq< $sub_domain (?: $Period $X $sub_domain )* >
+ ) {
+ my $route = qq< \@ $X $domain (?: , $X \@ $X $domain )* : $X >;
+ my $local_part = qq< $word $X (?: $Period $X $word $X )* >;
+ my $addr_spec = qq< $local_part \@ $X $domain >;
+ my $route_addr = qq[ < $X (?: $route )? $addr_spec > ];
+ my $phrase_ctrl = '\000-\010\012-\037';
+ my $phrase_char = qq/[^()<>\@,;:\".$esc$OpenBR$CloseBR$NonASCII$phrase_ctrl]/;
+ my $phrase = qq< $word $phrase_char * (?: (?: $comment | $quoted_str ) $phrase_char * )* >;
+ my $email = qq< $X (?: $addr_spec | $phrase $route_addr ) >;
+
+ if ($v56) {
+ eval q<
+ local $SIG{__DIE__};
+ $email = qr/$email/x;
+ >;
+ }
+ else {
+ $email =~ s/\s+//g;
+ }
+
+ push @email => $email;
+ }
}
### BEGIN # (2) ################################################################
# credits to an unknown(?) programmer ;)
# modified by n.d.p.
- my $lowalpha = '(?:[a-z])';
- my $hialpha = '(?:[A-Z])';
- my $alpha = "(?:$lowalpha|$hialpha)";
- my $digit = '(?:\d)';
- my $safe = '(?:[$_.+-])';
- my $extra = '(?:[!*\'(),])';
- my $national = '(?:[{}|\\\\^~\[\]`])';
- my $punctuation = '(?:[<>#%"])';
- my $reserved = '(?:[;/?:@&=])';
- my $hex = '(?:[\dA-Fa-f])';
+ my $lowalpha = '[a-z]';
+ my $hialpha = '[A-Z]';
+ my $alpha = '[a-zA-Z]';
+ my $digit = '\d';
+ my $safe = '[$_.+-]';
+ my $extra = '[!*\'(),]';
+ my $national = '[{}|\\\\^~\[\]`]';
+ my $punctuation = '[<>#%"]';
+ my $reserved = '[;/?:@&=]';
+ my $hex = '[\dA-Fa-f]';
my $escape = "(?:%$hex$hex)";
- my $unreserved = "(?:$alpha|$digit|$safe|$extra)";
+ my $unreserved = '[{}|\\\\^~\[\]`a-zA-Z\d$_.+-]'; #"(?:$alpha|$digit|$safe|$extra)";
my $uchar = "(?:$unreserved|$escape)";
my $xchar = "(?:$unreserved|$escape|$reserved)";
my $digits = '(?:\d+)';
- my $alphadigit = "(?:$alpha|\\d)";
+ my $alphadigit = '[a-zA-Z\d]'; #"(?:$alpha|$digit)";
# URL schemeparts for ip based protocols:
my $urlpath = "(?:$xchar*)";
my $password = "(?:(?:$uchar|[;?&=])*)";
my $port = '(?:[0-5]?\d\d?\d?\d?|6[0-4]\d\d\d|65[0-4]\d\d|655[0-2]\d|6553[0-5])';
my $ip4part = '(?:[01]?\d\d?|2[0-4]\d|25[0-5])';
- my $hostnumber = '(?:(?!0+\.0+\.0+\.0+)'."$ip4part\\.$ip4part\\.$ip4part\\.$ip4part)";
+ my $hostnumber = '(?:(?!0+\.0+\.0+\.0+)(?!255\.255\.255\.255)'."$ip4part\\.$ip4part\\.$ip4part\\.$ip4part)";
my $toplabel = "(?:(?:$alpha(?:$alphadigit|-)*$alphadigit)|$alpha)";
my $domainlabel = "(?:(?:$alphadigit(?:$alphadigit|-)*$alphadigit)|$alphadigit)";
my $hostname = "(?:(?:$domainlabel\\.)*$toplabel)";
my $hsegment = "(?:(?:$httpuchar|[;:\@&=~])*)";
my $search = "(?:(?:$httpuchar|[;:\@&=~])*)";
my $hpath = "(?:$hsegment(?:/$hsegment)*)";
- my $httpurl = "(?:http://$hostport(?:/$hpath(?:\\?$search)?)?(?:#$xchar*)?)";
+ my $httpurl = "(?:https?://$hostport(?:/$hpath(?:\\?$search)?)?(?:#$xchar*)?)";
+ my $strict_httpurl = "(?:https?://$hostport(?:/$hpath(?:\\?$search)?)?)";
# GOPHER (see also RFC1436)
my $gopher_plus = "(?:$xchar*)";
my $gtype = "(?:$xchar)";
my $gopherurl = "(?:gopher://$hostport(?:/$gtype(?:$selector(?:%09$search(?:%09$gopher_plus)?)?)?)?)";
- # MAILTO (see also RFC822)
- my $encoded822addr = "(?:$email)";
- my $mailtourl = "(?:mailto:$encoded822addr)";
-
# NEWS (see also RFC1036)
my $article = "(?:(?:$uchar|[;/?:&=])+\@$host)";
my $group = "(?:$alpha(?:$alpha|$digit|[.+_-])*)";
my $ppath = "(?:$psegment(?:/$psegment)*)";
my $prosperourl = "(?:prospero://$hostport/$ppath(?:$fieldspec)*)";
- %url = (
- http => qr/^$httpurl$/,
- ftp => qr/^$ftpurl$/,
- news => qr/^$newsurl$/,
- nntp => qr/^$nntpurl$/,
- telnet => qr/^$telneturl$/,
- gopher => qr/^$gopherurl$/,
- wais => qr/^$waisurl$/,
- mailto => qr/^$mailtourl$/,
- file => qr/^$fileurl$/,
- prospero => qr/^$prosperourl$/
- );
+ if ($v56) {
+ eval q[%url = (
+ http => qr/^$httpurl$/,
+ strict_http => qr/^$strict_httpurl$/,
+ ftp => qr/^$ftpurl$/,
+ news => qr/^$newsurl$/,
+ nntp => qr/^$nntpurl$/,
+ telnet => qr/^$telneturl$/,
+ gopher => qr/^$gopherurl$/,
+ wais => qr/^$waisurl$/,
+ mailto => 0,
+ strict_mailto => 0,
+ file => qr/^$fileurl$/,
+ prospero => qr/^$prosperourl$/
+ );];
+ }
+ else {
+ %url = (
+ http => "^$httpurl\$",
+ strict_http => "^$strict_httpurl\$",
+ ftp => "^$ftpurl\$",
+ news => "^$newsurl\$",
+ nntp => "^$nntpurl\$",
+ telnet => "^$telneturl\$",
+ gopher => "^$gopherurl\$",
+ wais => "^$waisurl\$",
+ mailto => 0,
+ strict_mailto => 0,
+ file => "^$fileurl\$",
+ prospero => "^$prosperourl\$"
+ );
+ }
}
# keeping require happy
git.p6c8.net / selfforum.git / blobdiff