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#!/usr/bin/env perl
## Copyright © 2009,2010 by Daniel Friesel <derf@derf.homelinux.org>
## License: WTFPL <http://sam.zoy.org/wtfpl>
## 0. You just DO WHAT THE FUCK YOU WANT TO.
use strict;
use warnings;
use 5.010;
use Getopt::Long qw/:config no_ignore_case/;
use XML::LibXML;
use WWW::Mechanize;
my $firsturl = 'http://efa.vrr.de/vrr/XSLT_TRIP_REQUEST2?language=de&itdLPxx_transpCompany=vrr';
my $posturl = 'http://efa.vrr.de/vrr/XSLT_TRIP_REQUEST2';
my $version = '1.3+git';
my $content;
my $connections;
my %post;
my $www = WWW::Mechanize->new(
autocheck => 1,
);
my (@from, @to, @via);
my ($from_type, $to_type, $via_type) = ('stop') x 3;
my $ignore_info = 'Fahrradmitnahme';
my ($test_dump, $test_parse);
binmode(STDOUT, ':utf8');
binmode(STDERR, ':utf8');
sub check_ambiguous {
my ($full_tree) = @_;
my $ambiguous = 0;
my $xp_select = XML::LibXML::XPathExpression->new('//select');
my $xp_option = XML::LibXML::XPathExpression->new('./option');
foreach my $select (@{$full_tree->findnodes($xp_select)}) {
$ambiguous = 1;
printf {*STDERR} (
"Ambiguous input for %s\n",
$select->getAttribute('name'),
);
foreach my $val ($select->findnodes($xp_option)) {
print {*STDERR} "\t";
say {*STDERR} $val->textContent();
}
}
if ($ambiguous) {
exit 1;
}
}
sub check_no_connections {
my ($full_tree) = @_;
my $xp_err_img = XML::LibXML::XPathExpression->new(
'//td/img[@src="images/ausrufezeichen.jpg"]');
my $err_node = $full_tree->findnodes($xp_err_img)->[0];
if ($err_node) {
say {*STDERR} 'Looks like efa.vrr.de showed an error.';
say {*STDERR} 'I will now try to dump the error message:';
say {*STDERR} $err_node->parentNode()->parentNode()->textContent();
exit 2;
}
}
sub display_connection {
my ($con_parts) = @_;
for my $con (@{$con_parts}) {
# Note: Changes @{$con} elements
foreach my $str (@{$con}) {
$str =~ s/[\s\n\t]+/ /gs;
$str =~ s/^ //;
$str =~ s/ $//;
}
if (@{$con} < 5) {
foreach my $str (@{$con}) {
say "# $str";
}
next;
}
if ($con->[0] !~ / \d{2} : \d{2} /ox) {
splice(@{$con}, 0, 0, q{});
splice(@{$con}, 4, 0, q{});
$con->[7] = q{};
}
elsif ($con->[4] =~ / Plan: \s ab /ox) {
printf(
"# %s\n",
splice(@{$con}, 4, 1),
);
}
foreach my $extra (splice(@{$con}, 8, -1)) {
if (not (length($ignore_info) and $extra =~ /$ignore_info/i)) {
say "# $extra";
}
}
printf(
"%-5s %-2s %-30s %-20s %s\n%-5s %-2s %-30s\n\n",
@{$con}[0, 1, 2, 3, 7, 4, 5, 6],
)
}
}
sub opt_time_arr {
$post{itdTripDateTimeDepArr} = 'arr';
opt_time(@_);
}
sub opt_time_dep {
$post{itdTripDateTimeDepArr} = 'dep';
opt_time(@_);
}
sub opt_time {
my (undef, $time) = @_;
if ($time !~ /^ [0-2]? \d : [0-5]? \d $/x) {
die("time: Invalid argument. Use HH:MM\n");
}
@post{'itdTimeHour', 'itdTimeMinute'} = split(/:/, $time);
}
sub opt_date {
my (undef, $date) = @_;
if ($date !~ /^ [0-3]? \d \. [01]? \d \. (?: \d{4} )? $/x) {
die("date: Invalid argument: Use DD.MM.[YYYY]\n");
}
@post{'itdDateDay', 'itdDateMonth', 'itdDateYear'} = split(/\./, $date);
$post{itdDateYear} //= (localtime(time))[5] + 1900;
}
sub opt_exclude {
my @mapping = qw/
zug s-bahn u-bahn stadtbahn tram stadtbus regionalbus
schnellbus seilbahn schiff ast sonstige
/;
my $ok = 0;
my (undef, $str) = @_;
my @exclude = split(/,/, $str);
foreach my $exclude_type (@exclude) {
for my $map_id (0 .. $#mapping) {
if ($exclude_type eq $mapping[$map_id]) {
$post{"inclMOT_$map_id"} = undef;
$ok = 1;
}
}
}
if (not $ok) {
die("exclude: Invalid argument.\n");
}
}
sub opt_maxinter {
my (undef, $opt) = @_;
$post{maxChanges} = $opt;
}
sub opt_prefer {
my (undef, $prefer) = @_;
given ($prefer) {
when ('speed') { $post{routeType} = 'LEASTTIME' }
when ('nowait') { $post{routeType} = 'LEASTINTERCHANGE' }
when ('nowalk') { $post{routeType} = 'LEASTWALKING' }
default {
die("prefer: Invalid argument. Use speed|nowait|nowalk\n");
}
}
}
sub opt_proximity {
$post{useProxFootSearch} = 1;
}
sub opt_include {
my (undef, $include) = @_;
given ($include) {
when ('local') { $post{lineRestriction} = 403 }
when ('ic') { $post{lineRestriction} = 401 }
when ('ice') { $post{lineRestriction} = 400 }
when (/\d+/) { $post{lineRestriction} = $include }
default {
die("include: Invalid argument. Use local|ic|ice\n");
}
}
}
sub opt_walk_speed {
my (undef, $walk_speed) = @_;
if ($walk_speed ~~ ['normal', 'fast', 'slow']) {
$post{changeSpeed} = $walk_speed;
}
else {
die("walk-speed: Invalid argument. Use normal|fast|slow\n");
}
}
sub opt_bike {
$ignore_info = undef;
$post{bikeTakeAlong} = 1;
}
sub opt_timeout {
my (undef, $timeout) = @_;
$www->timeout($timeout);
}
sub parse_tree {
my ($full_tree) = @_;
my $con_part = 0;
my $con_no;
my $cons;
my $xp_td = XML::LibXML::XPathExpression->new('//table//table/tr/td');
my $xp_img = XML::LibXML::XPathExpression->new('./img');
foreach my $td (@{$full_tree->findnodes($xp_td)}) {
my $colspan = $td->getAttribute('colspan') // 0;
my $class = $td->getAttribute('class') // q{};
if ( $colspan != 8 and $class !~ /^bgColor2?$/ ) {
next;
}
if ($colspan == 8) {
if ($td->textContent() =~ / (?<no> \d+ ) \. .+ Fahrt /x) {
$con_no = $+{'no'} - 1;
$con_part = 0;
next;
}
}
if ($class =~ /^bgColor2?$/) {
if ($class eq 'bgColor' and ($con_part % 2) == 1) {
$con_part++;
}
elsif ($class eq 'bgColor2' and ($con_part % 2) == 0) {
$con_part++;
}
}
if (
defined $con_no and not $td->exists($xp_img)
and $td->textContent() !~ /^\s*$/
)
{
push(@{$cons->[$con_no]->[$con_part]}, $td->textContent());
}
}
if (defined $con_no) {
return $cons;
}
else {
say {*STDERR}
'efa.vrr.de returned no connections, check your input data.';
exit 3;
}
}
GetOptions(
'a|arrive=s' => \&opt_time_arr,
'b|bike' => \&opt_bike,
'd|date=s' => \&opt_date,
'depart=s' => \&opt_time_dep,
'e|exclude=s' => \&opt_exclude,
'from=s{2}' => \@from,
'from-type=s' => \$from_type,
'h|help' => sub {exec('perldoc', '-F', $0)},
'I|ignore-info=s{0,1}' => \$ignore_info,
'm|max-change=i' => \&opt_maxinter,
'post=s' => \%post,
'P|prefer=s' => \&opt_prefer,
'p|proximity' => \&opt_proximity,
'i|include=s' => \&opt_include,
'test-dump' => \$test_dump,
'test-parse' => \$test_parse,
't|time=s' => \&opt_time,
'timeout=i' => \&opt_timeout,
'to=s{2}' => \@to,
'to-type=s' => \$to_type,
'v|version' => sub {print "efa version $version\n"; exit 0},
'via=s{2}' => \@via,
'via-type=s' => \$via_type,
'w|walk-speed=s' => \&opt_walk_speed,
) or die("Please see $0 --help\n");
if (not (@from and @to)) {
if (@ARGV == 4) {
(@from[0,1], @to[0,1]) = @ARGV;
}
elsif (@ARGV == 6) {
(@from[0,1], @via[0,1], @to[0,1]) = @ARGV;
}
}
if (@to != 2 or @from != 2) {
die("Insufficient to/from arguments, see $0 --help for usage\n");
}
for my $pair (
[$from[1], \$from_type],
[$via[1] , \$via_type ],
[$to[1] , \$to_type ],
) {
next if (not defined $pair->[0]);
for my $type (['addr', 'address'], ['poi', 'poi']) {
if ($pair->[0] =~ s/ ^ $type->[0] : \s* (.+) $ /$1/x) {
${$pair->[1]} = $type->[1];
}
}
}
@post{'place_origin', 'name_origin'} = @from;
@post{'place_destination', 'name_destination'} = @to;
if (@via == 2) {
@post{'place_via', 'name_via'} = @via;
}
foreach my $type ($from_type, $to_type, $via_type) {
if (not ($type ~~ ['stop', 'address', 'poi'])) {
die("from/to/via type: Must be stop, address or poi, not '$type'\n");
}
}
$post{type_origin} = $from_type;
$post{type_destination} = $to_type;
$post{type_via} = $via_type;
if ($test_parse) {
local $/ = undef;
$content = <STDIN>;
}
else {
$www->get($firsturl);
$www->submit_form(
form_name => 'jp',
fields => \%post,
);
# XXX (workaround)
# The content actually is iso-8859-1. But HTML::Message doesn't actually
# decode character strings when they have that encoding. However, it
# doesn't check for latin-1, which is an alias for iso-8859-1.
$content = $www->response()->decoded_content(charset => 'latin-1');
}
if ($test_dump) {
print $content;
exit 0
}
my $tree = XML::LibXML->load_html(string => $content);
check_ambiguous($tree);
check_no_connections($tree);
$connections = parse_tree($tree);
for my $i (0 .. $#{$connections}) {
display_connection($connections->[$i]);
if ($i != $#{$connections}) {
print "------\n\n";
}
}
__END__
=head1 NAME
efa - unofficial efa.vrr.de command line client
=head1 SYNOPSIS
=over
=item B<efa> B<--from> I<city> I<stop> B<--to> I<city> I<stop> [ I<additional options> ]
=item B<efa> [ I<options> ] I<from-city> I<from-stop> [ I<via-city> I<via-stop> ] I<to-city> I<to-stop>
=back
=head1 DESCRIPTION
B<efa> is a command line client for the L<http://efa.vrr.de> web interface.
It sends the specified information to the online form and displays the results.
=head1 OPTIONS
=over
=item B<--from> I<city> I<stop>
Departure place
=item B<--to> I<city> I<stop>
Arrival place
=item B<--via> I<city> I<stop>
Travel via this place
=item B<--from-type>, B<--to-type>, B<--via-type> I<type>
Designate type of the I<stop> for from/to/via.
Possible I<type>s: B<stop> (default), B<address>, B<poi> (point of interest)
Alternatively, you can specify the I<stop> of the from/to/via options as
"addr:I<stop>" or "poi:I<stop>", respectively
=item B<-t>|B<--time>|B<--depart> I<hh>:I<mm>
Journey start time
=item B<-a>|B<--arrive> I<hh>:I<mm>
Journey end time (overrides --time/--depart)
=item B<-d>|B<--date> I<dd>.I<mm>.[I<yyyy>]
Journey date
=item B<-b>|B<--bike>
Choose connections allowing to carry a bike
=item B<-e>|B<--exclude> I<transports>
Exclude I<transports> (comma separated list).
Possible transports: zug, s-bahn, u-bahn, stadtbahn, tram, stadtbus, regionalbus,
schnellbus, seilbahn, schiff, ast, sonstige
=item B<-m>|B<--max-change> I<number>
Print connections with at most I<number> interchanges
=item B<-P>|B<--prefer> I<type>
Prefer connections of I<type>:
=over
=item * speed (default)
The faster, the better
=item * nowait
Prefer connections with less interchanges
=item * nowalk
Prefer connections with less walking (at interchanges)
=back
=item B<-p>|B<--proximity>
Take stops close to the stop/start into account and possibly use them instead
=item B<-i>|B<--include> I<type>
Include connections using trains of type I<type>, where I<type> may be:
=over
=item * local (default)
only take local trains ("Verbund-/Nahverkehrslinien"). Slow, but the cheapest
method if you're not travelling long distance
=item * ic
Local trains + IC
=item * ice
All trains (local + IC + ICE)
=back
=item B<-w>|B<--walk-speed> I<speed>
Set your walking speed to I<speed>.
Accepted values: normal (default), fast, slow
=item B<-I>|B<--ignore-info> [ I<regex> ]
Ignore additional information matching I<regex> (default: /Fahrradmitnahme/)
If I<regex> is not supplied, removes the default regex (-E<gt> nothing will be ignored)
=item B<--timeout> I<seconds>
Set timeout for HTTP requests. Default: 60 seconds.
=item B<--post> I<key>=I<value>
Add I<key> with I<value> to the HTTP POST request sent to the EFA server.
This can be used to use setting B<efa> does not yet cover, like
C<--post lineRestriction=400> to also show IC and ICE trains.
Note that B<--post> will be overridden by the standard efa options, such as
B<--time>
=item B<-v>|B<--version>
Print version information
=back
=head1 EXIT STATUS
0 Everything went well
1 Ambiguous input, re-run efa with different arguments
2 efa.vrr.de error (i.e. unable to find matching connections)
3 efa.vrr.de error (usually invalid input data)
255 Any other kind of error
=head1 CONFIGURATION
None.
=head1 DEPENDENCIES
This script requires perl 5.10 (or higher) with the modules
WWW::Mechanize and XML::LibXML.
=head1 BUGS AND LIMITATIONS
B<efa> cannot handle Unicode in its arguments, so use plain ASCII.
The Parser is quite new and may not yet cover all corner cases, use with
caution.
=head1 AUTHOR
Copyright (C) 2009,2010 by Daniel Friesel E<lt>derf@derf.homelinux.orgE<gt>
=head1 LICENSE
0. You just DO WHAT THE FUCK YOU WANT TO.
|