#!/usr/bin/perl
# spellerpages script - adapted to use FindBin; and CGI::Simple in place of CGI
use lib (
'/home/raj/perl-lib',
'/home/raj/perl5/lib/perl5',
);
use File::Temp qw(tempfile tempdir);
use Modern::Perl qw(2012);
use CGI::Simple::Cookie;
use Storable qw(thaw);
use FindBin qw($Bin); # warn $Bin;
use DBIx::Simple;
use Data::Printer;
use CGI::Simple;
use Path::Tiny;
use Local::DB;
open my $debug, '>', path($Bin, '..', 'logs', 'debug.txt')->realpath;
my $q = new CGI::Simple;
my $spellercss = '/speller/spellerStyle.css';
my $wordWindowSrc = '/speller/wordWindow.js';
my @textinputs = $q->param( 'textinputs[]' ); # array
my $aspell_cmd = 'aspell';
my $lang = 'en_GB';
my $input_separator = 'A';
my $dicts_dir = path($Bin, '..', 'static', 'speller', 'dicts')->realpath;
my $medical = path($dicts_dir, 'en-medical.rws');
my @aspell_opts = (
'-a',
"--lang=$lang",
'--encoding=utf-8',
"--home-dir=$dicts_dir",
"--extra-dicts=$medical", # loaded but doesn't appear in Text::Aspell::print_config()
);
# if user_profile retrived from session, add personal dict:
if ( my $user_profile = _get_user_profile() ) {
my $user_centre = $user_profile->{user_location}->{centre};
push @aspell_opts, "--personal=.aspell.$user_centre.pws";
}
my $aspell_opts = join " ", @aspell_opts; # print $debug $aspell_opts;
# set the 'wordtext' JavaScript variable to the submitted text.
sub printTextVar {
for( my $i = 0; $i <= $#textinputs; $i++ ) {
print "textinputs[$i] = decodeURIComponent('" . escapeQuote( $textinputs[$i] ) . "')\n";
}
}
sub printTextIdxDecl {
my $idx = shift;
print "words[$idx] = [];\n";
print "suggs[$idx] = [];\n";
}
sub printWordsElem {
my( $textIdx, $wordIdx, $word ) = @_;
print "words[$textIdx][$wordIdx] = '" . escapeQuote( $word ) . "';\n";
}
sub printSuggsElem {
my( $textIdx, $wordIdx, @suggs ) = @_;
print "suggs[$textIdx][$wordIdx] = [";
for my $i ( 0..$#suggs ) {
print "'" . escapeQuote( $suggs[$i] ) . "'";
if( $i < $#suggs ) {
print ", ";
}
}
print "];\n";
}
sub printCheckerResults {
my $textInputIdx = -1;
my $wordIdx = 0;
my $unhandledText;
# create temp file
my $dir = tempdir( CLEANUP => 1 );
my( $fh, $tmpfilename ) = tempfile( DIR => $dir );
# temp file was created properly?
# open temp file, add the submitted text.
for( my $i = 0; $i <= $#textinputs; $i++ ) {
my $text = url_decode( $textinputs[$i] );
my @lines = split( /\n/, $text );
print $fh "\%\n"; # exit terse mode
print $fh "^$input_separator\n";
print $fh "!\n"; # enter terse mode
for my $line ( @lines ) {
# use carat on each line to escape possible aspell commands
print $fh "^$line\n";
}
}
# exec aspell command
my $cmd = "$aspell_cmd $aspell_opts < $tmpfilename 2>&1";
open ASPELL, "$cmd |" or handleError( "Could not execute `$cmd`\\n$!" ) and return;
# parse each line of aspell return
for my $ret ( <ASPELL> ) {
chomp( $ret );
# if '&', then not in dictionary but has suggestions
# if '#', then not in dictionary and no suggestions
# if '*', then it is a delimiter between text inputs
if( $ret =~ /^\*/ ) {
$textInputIdx++;
printTextIdxDecl( $textInputIdx );
$wordIdx = 0;
} elsif( $ret =~ /^(&|#)/ ) {
my @tokens = split( " ", $ret, 5 );
printWordsElem( $textInputIdx, $wordIdx, $tokens[1] );
my @suggs = ();
if( $tokens[4] ) {
@suggs = split( ", ", $tokens[4] );
}
printSuggsElem( $textInputIdx, $wordIdx, @suggs );
$wordIdx++;
} else {
$unhandledText .= $ret;
}
}
close ASPELL or handleError( "Error executing `$cmd`\\n$unhandledText" ) and return;
}
sub escapeQuote {
my $str = shift;
$str =~ s/'/\\'/g;
return $str;
}
sub handleError {
my $err = shift;
print "error = '" . escapeQuote( $err ) . "';\n";
}
sub url_decode {
local $_ = @_ ? shift : $_;
defined or return;
# change + signs to spaces
tr/+/ /;
# change hex escapes to the proper characters
s/%([a-fA-F0-9]{2})/pack "H2", $1/eg;
return $_;
}
# manually retrieve db.sessions.a_session using CGISESSID cookie:
sub _get_user_profile {
my @dsn = Local::DB->dsn({ dbname => 'hilis4' }); # p @dsn;
my $dbix = DBIx::Simple->new(@dsn);# p $dbix;
my %cookies = CGI::Simple::Cookie->fetch;
my $sessid = $cookies{CGISESSID}->value;
my @params = ( 'a_session', { id => $sessid } );
$dbix->select('sessions', @params)->into(my $session); # p $session;
# or, look in other db's - TODO: lousy method but need session to get location!
if (! $session ) {
DB: for my $db( qw/uclh/ ) { # print $debug $db, "\n";
$dbix->select("$db.sessions", @params)->into($session);
last DB if $session;
}
}
if ($session) {
my $user_profile = thaw($session)->{UserProfile}; # only if fastcgi process
return $user_profile;
}
return 0;
}
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# Display HTML
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
print <<EOF;
Content-type: text/html; charset=utf-8
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="stylesheet" type="text/css" href="$spellercss"/>
<script src="$wordWindowSrc"></script>
<script type="text/javascript">
var suggs = new Array();
var words = new Array();
var textinputs = new Array();
var error;
EOF
printTextVar();
printCheckerResults();
print <<EOF;
var wordWindowObj = new wordWindow();
wordWindowObj.originalSpellings = words;
wordWindowObj.suggestions = suggs;
wordWindowObj.textInputs = textinputs;
function init_spell() {
// check if any error occured during server-side processing
if( error ) {
alert( error );
} else {
// call the init_spell() function in the parent frameset
if (parent.frames.length) {
parent.init_spell( wordWindowObj );
} else {
error = "This page was loaded outside of a frameset. ";
error += "It might not display properly";
alert( error );
}
}
}
</script>
</head>
<body onLoad="init_spell();">
<script type="text/javascript">
wordWindowObj.writeBody();
</script>
</body>
</html>
EOF
