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annotate Lib/IMPL/Web/HttpResponse.pm @ 243:cd2b1f121029

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*TTView: fixed template selection based on the model type
author sergey
date Fri, 19 Oct 2012 02:23:15 +0400
parents 23daf2fae33a
children 7c517134c42f
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1 use strict;
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2 package IMPL::Web::HttpResponse;
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3
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4 use CGI();
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5 use IMPL::lang qw(:declare);
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6 use IMPL::declare {
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7 require => {
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8 Exception => 'IMPL::Exception',
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9 ArgumentException => '-IMPL::InvalidArgumentException'
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10 },
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11 base => [
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12 'IMPL::Object' => undef,
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13 'IMPL::Object::Autofill' => '@_'
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14 ],
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15 props => [
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16 status => PROP_ALL,
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17 type => PROP_ALL,
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18 charset => PROP_ALL,
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19 cookies => PROP_ALL,
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20 headers => PROP_ALL,
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21 body => PROP_ALL
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22 ]
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23 };
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24
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25 sub CTOR {
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26 my ($this) = @_;
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27
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28 $this->headers({}) unless $this->headers();
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29 $this->cookies({}) unless $this->cookies();
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30 }
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31
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32 sub PrintResponse {
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33 my ($this,$out) = @_;
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34
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35 my $q = CGI->new({});
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36
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37 my %headers = %{$this->headers};
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38
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39 if(my $cookies = $this->cookies) {
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40 $headers{-cookie} = [map _createCookie($_,$cookies->{$_}), keys %$cookies] if $cookies;
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41 }
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42
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43 $headers{'-status'} = $this->status || '200 OK';
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44 $headers{'-type'} = $this->type || 'text/html';
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45
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46 if(my $charset = $this->charset) {
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47 $q->charset($charset);
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48 binmode $out, ":encoding($charset)";
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49 }
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50
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51 print $out $q->header(\%headers);
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52
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53 if(my $body = $this->body) {
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54 if(ref $body eq 'CODE') {
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55 $body->($out);
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56 } else {
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57 print $out $body;
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58 }
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59 }
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60 }
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61
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62 #used to map a pair name valie to a valid cookie object
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63 sub _createCookie {
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64 return UNIVERSAL::isa($_[1], 'CGI::Cookie')
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65 ? $_[1]
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66 : ( defined $_[1]
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67 ? CGI::Cookie->new(-name => $_[0], -value => $_[1] )
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68 : CGI::Cookie->new(-name => $_[0], -expires => '-1d', -value => '')
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69 );
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70 }
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71
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72 sub InternalError {
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73 my ($self,%args) = @_;
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74
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75 $args{status} ||= '500 Internal Server Error';
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76
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77 return $self->new(%args);
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78 }
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79
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80 sub Redirect {
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81 my ($self,%args) = @_;
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82
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83 return $self->new(
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84 status => $args{status} || '303 See other',
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85 headers => {
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86 location => $args{location}
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87 }
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88 );
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89 }
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90
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91 1;
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92
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93 __END__
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94
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95 =pod
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96
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97 =head1 NAME
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98
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99 C<IMPL::Web::HttpResponse> - Результат обработки C<HTTP> запроса.
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100
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101 =head1 SYNOPSIS
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102
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103 =head1 DESCRIPTION
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104
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105 Базовый класс для ответов приложения на C<HTTP> запрос. Каждый вид ответа,
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106 например
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107
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108 Данный объект используется для формирования и передачи данных C<HTTP> ответа
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109 напрямую. Основными полями являются C<body> и C<status>.
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110
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111 Кроме свойств относящихся непосредственно к самому C<HTTP> ответу, данный объект
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112 может содержать свойства относящиеся к процессу обработки запроса, например
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113 механизму формирования представления.
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114
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115 =head1 MEMBERS
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116
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117 =head2 C<[get,set]status>
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118
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119 Статус который будет отправлен сервером клиенту, например, C<200 OK> или
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120 C<204 No response>. Если не указан, то будет C<200 OK>.
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121
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122 =head2 C<[get,set]type>
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123
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124 Тип содержимого, которое будет передано клиенту, если не указано, будет
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125 C<text/html>.
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126
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127 =head2 C<[get,set]charset>
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128
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129 Кодировка в которой будут переданны данные. Следует задавать если и только, если
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130 передается текстовая информация. Если указана кодировка, то она будет
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131 автоматически применена к потоку, который будет передан методу C<PrintResponse>.
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132
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133 =head2 C<[get,set]cookies>
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134
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135 Опционально. Ссылка на хеш с печеньками.
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136
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137 =head2 C<[get,set]headers>
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138
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139 Опционально. Ссылка на хеш с дополнительными полями заголовка ответа. Формат
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140 имен полей как у модуля C<CGI>.
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141
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142 =begin code
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143
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144 $response->header->{custom_header} = "my value";
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145
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146 #will produce the following header
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147
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148 Custom-header: my value
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149
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150 =end code
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151
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152 =head2 C<[get,set]body>
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153
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154 Тело ответа. Может быть как простой скаляр, который будет приведен к строке и
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155 выдан в поток вывода метода C<PrintResponse>. Также может быть ссылкой на
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156 процедуру, в таком случае будет вызвана эта процедура и ей будет передан
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157 первым параметром поток для вывода тела ответа.
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158
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159 =head2 C<PrintResponse($outStream)>
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160
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161 Формирует заголовок и выводит ответ сервера в указанный параметром поток.
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162
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163 =cut