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|
#!/usr/bin/perl -T
##
## feedback generator for W3C Markup Validation Service
## Pragmas.
use strict;
use warnings;
## Modules. See also the BEGIN block further down below.
use CGI qw();
use File::Spec::Functions qw(catfile);
use HTML::Template qw(); # Need 2.6 but can't say, rt.cpan.org#70190
use Config::General 2.32 qw(); # Need 2.32 for <msg 0>, rt.cpan.org#17852
use vars qw($DEBUG $CFG %RSRC $VERSION);
# Define global constants
use constant TRUE => 1;
use constant FALSE => 0;
# Things inside BEGIN don't happen on every request in persistent
# environments, such as mod_perl. So let's do globals, eg. read config here.
BEGIN {
my $base = $ENV{W3C_VALIDATOR_HOME} || '/usr/local/validator';
# Launder data for -T; -AutoLaunder doesn't catch this one.
if ($base =~ /^(.*)$/) {
$base = $1;
}
#
# Read Config Files.
eval {
my %config_opts = (
-ConfigFile =>
($ENV{W3C_VALIDATOR_CFG} || '/etc/w3c/validator.conf'),
-MergeDuplicateOptions => TRUE,
-MergeDuplicateBlocks => TRUE,
-SplitPolicy => 'equalsign',
-UseApacheInclude => TRUE,
-IncludeRelative => TRUE,
-InterPolateVars => TRUE,
-AutoLaunder => TRUE,
-AutoTrue => TRUE,
-CComments => FALSE,
-DefaultConfig => {Paths => {Base => $base,},},
);
my %cfg = Config::General->new(%config_opts)->getall();
$CFG = \%cfg;
};
if ($@) {
die <<"EOF";
Could not read configuration. Set the W3C_VALIDATOR_CFG environment variable
or copy conf/* to /etc/w3c/. Make sure that the configuration file and all
included files are readable by the web server user. The error was:\n'$@'
EOF
}
} # end of BEGIN block.
#
# Get rid of (possibly insecure) $PATH.
delete $ENV{PATH};
our $q = CGI->new();
our $lang = 'en_US'; # @@@ TODO: conneg
# Read error message + explanations file
%RSRC = Config::General->new(
-MergeDuplicateBlocks => 1,
-ConfigFile =>
catfile($CFG->{Paths}->{Templates}, $lang, 'error_messages.cfg'),
)->getall();
our $T = HTML::Template->new(
filename => catfile($CFG->{Paths}->{Templates}, $lang, 'feedback.tmpl'),
die_on_bad_params => FALSE,
);
our $errlist = "";
our $errmsg_text;
our $validated_uri;
our $errmsg_id;
sub process_query
{
$validated_uri = $q->param('uri');
$errmsg_id = $q->param('errmsg_id');
if ($errmsg_id) {
$errmsg_text = $RSRC{msg}->{$errmsg_id}->{original};
$errmsg_text = de_template_explanation($errmsg_text);
}
# Trigger "thanks for your message. If your query requires an answer,..." ack paragraph
my $sent = $q->param('send');
if ($sent) {
print "hello";
if ($sent eq "yes") {
$T->param(ack_ok => TRUE);
}
}
}
sub send_message
{
# sends message to www-validator list @@ TODO @@
}
sub error_choices
{
# creates drop-down menu with all possible error messages to send feedback about
my @msgnumbers = keys(%{$RSRC{msg}});
@msgnumbers = sort { $a <=> $b } @msgnumbers;
my $errlabel;
for my $errnum (@msgnumbers) {
$errlabel = $RSRC{msg}->{$errnum}->{original};
$errlabel = de_template_explanation($errlabel);
if (length($errlabel) > 70) {
$errlabel = substr($errlabel, 0, 67) . "...";
}
$errlist = $errlist . '<option value="' . $errnum . '"';
if ($errmsg_id) {
if ($errnum == $errmsg_id) {
$errlist = $errlist . 'selected="selected" ';
}
}
$errlist = $errlist . "> $errnum $errlabel</option>\n";
}
}
sub de_template_explanation
{
# takes the error message template, and replace "template keywords" with real life keywords
my $explanation = shift;
if ($explanation) {
$explanation =~ s/\%1/X/;
$explanation =~ s/\%2/Y/;
$explanation =~ s/\%3/Z/;
$explanation =~ s/\%4/a/;
$explanation =~ s/\%5/b/;
$explanation =~ s/\%6/c/;
}
return $explanation;
}
sub prepare_error_message
{
# if the form sent contains errors (what kind exactly?)
# @@ TODO @@
}
sub print_prefilled_form
{
$T->param(page_title => "Feedback");
$T->param(is_feedback => 1);
$T->param(uri => $validated_uri);
$T->param(errmsg_id => $errmsg_id);
# $T->param(errlist => $errlist);
$T->param(explanation => $errmsg_text);
print $T->output;
}
process_query;
#error_choices;
print_prefilled_form;
# Local Variables:
# mode: perl
# indent-tabs-mode: nil
# cperl-indent-level: 4
# cperl-continued-statement-offset: 4
# cperl-brace-offset: -4
# perl-indent-level: 4
# End:
# ex: ts=4 sw=4 et
|
