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annotate Lib/IMPL/Web/Handler/LocaleHandler.pm @ 393:69a1f1508696

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minor security refactoring
author cin
date Fri, 14 Feb 2014 16:41:12 +0400
parents eff7f75a4408
children 212cc86e470b
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1 package IMPL::Web::Handler::LocaleHandler;
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2 use strict;
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3
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4 use IMPL::Const qw(:prop);
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5 use IMPL::declare {
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6 require => {
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7 Resources => 'IMPL::Resources'
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8 },
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9 base => [
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10 'IMPL::Object' => undef,
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11 'IMPL::Object::Autofill' => '@_',
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12 'IMPL::Object::Serializable' => undef
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13 ],
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14 props => [
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15 locales => PROP_RO | PROP_LIST,
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16 default => PROP_RO,
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17 cookie => PROP_RO
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18 ]
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19 };
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20
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21 sub Invoke {
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22 my ($this,$action,$nextHandler) = @_;
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23
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24 my $locale;
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25
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26 if ($this->cookie and my $cookie = $action->cookie($this->cookie)) {
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27 ($locale) = grep /^$cookie/i, $this->locales;
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28 }
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29
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30 unless($locale) {
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31 my @matches;
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32
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33 my $best = [$this->default,0];
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34
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35 if(my $header = $action->header('Accept-Language')) {
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36 foreach my $part (split(/\s*,\s*/, $header)) {
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37 my ($lang,$quality) = ($part =~ /([a-z]+(?:\-[a-z]+)*)(?:\s*;\s*q=(0\.[\d]+|1))?/i );
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38
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39 $quality ||=1;
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40
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41 foreach my $tag ($this->locales) {
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42 if ( $tag =~ m/^$lang/i ) {
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43 push @matches, [$tag,$quality];
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44 }
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45 }
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46 }
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47
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48 foreach my $match (@matches) {
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49 if ($match->[1] > $best->[1]) {
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50 $best = $match;
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51 }
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52 }
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53
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54 }
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55
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56 $locale = $best->[0];
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57 }
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58
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59 Resources->SetLocale($locale) if $locale;
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60
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61 return $nextHandler->($action);
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62 }
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63
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64 1;
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65
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66 __END__
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67
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68 =pod
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69
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70 =head1 NAME
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71
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72 C<IMPL::Web::Handler::LocaleHandler> - handles locale for the request
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73
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74 =head1 SYNOPSIS
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75
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76 =begin code xml
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77
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78 <handlers type="ARRAY">
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79 <item type="IMPL::Web::Handler::LocaleHandler">
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80 <locales type="ARRAY">
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81 <item>en-US</item>
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82 <item>ru-RU</item>
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83 </locales>
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84 <default>en-US</default>
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85 <cookie>lang</cookie>
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86 </item>
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87 </handlers>
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88
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89 =end code xml
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90
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91 =cut