Mercurial > pub > Impl
annotate Lib/IMPL/Web/HttpResponse.pm @ 332:04a093f0a5a6
IMPL::Web::Application refactoring: resources are created per client request
| author | cin |
|---|---|
| date | Sun, 09 Jun 2013 21:48:57 +0400 |
| parents | 32aceba4ee6d |
| children |
| rev | line source |
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| 213 | 1 use strict; |
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2 package IMPL::Web::HttpResponse; |
| 213 | 3 |
| 4 use CGI(); | |
| 245 | 5 use IMPL::lang qw(:declare :hash); |
| 213 | 6 use IMPL::declare { |
| 7 require => { | |
| 8 Exception => 'IMPL::Exception', | |
| 9 ArgumentException => '-IMPL::InvalidArgumentException' | |
| 10 }, | |
| 11 base => [ | |
| 12 'IMPL::Object' => undef, | |
| 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 |
| 213 | 22 ] |
| 23 }; | |
| 24 | |
| 25 sub CTOR { | |
| 26 my ($this) = @_; | |
| 27 | |
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28 $this->headers({}) unless $this->headers(); |
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29 $this->cookies({}) unless $this->cookies(); |
| 213 | 30 } |
| 31 | |
| 32 sub PrintResponse { | |
| 33 my ($this,$out) = @_; | |
| 34 | |
| 35 my $q = CGI->new({}); | |
| 36 | |
| 37 my %headers = %{$this->headers}; | |
| 38 | |
| 39 if(my $cookies = $this->cookies) { | |
| 40 $headers{-cookie} = [map _createCookie($_,$cookies->{$_}), keys %$cookies] if $cookies; | |
| 41 } | |
| 42 | |
| 43 $headers{'-status'} = $this->status || '200 OK'; | |
| 44 $headers{'-type'} = $this->type || 'text/html'; | |
| 45 | |
| 46 if(my $charset = $this->charset) { | |
| 47 $q->charset($charset); | |
| 48 binmode $out, ":encoding($charset)"; | |
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49 } else { |
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50 $q->charset(''); |
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51 binmode $out; |
| 213 | 52 } |
| 53 | |
| 230 | 54 print $out $q->header(\%headers); |
| 213 | 55 |
| 56 if(my $body = $this->body) { | |
| 57 if(ref $body eq 'CODE') { | |
| 58 $body->($out); | |
| 59 } else { | |
| 60 print $out $body; | |
| 61 } | |
| 62 } | |
| 63 } | |
| 64 | |
| 65 #used to map a pair name valie to a valid cookie object | |
| 66 sub _createCookie { | |
| 239 | 67 return UNIVERSAL::isa($_[1], 'CGI::Cookie') |
| 68 ? $_[1] | |
| 69 : ( defined $_[1] | |
| 70 ? CGI::Cookie->new(-name => $_[0], -value => $_[1] ) | |
| 71 : CGI::Cookie->new(-name => $_[0], -expires => '-1d', -value => '') | |
| 72 ); | |
| 213 | 73 } |
| 74 | |
| 230 | 75 sub InternalError { |
| 76 my ($self,%args) = @_; | |
| 77 | |
| 78 $args{status} ||= '500 Internal Server Error'; | |
| 79 | |
| 80 return $self->new(%args); | |
| 81 } | |
| 82 | |
| 83 sub Redirect { | |
| 84 my ($self,%args) = @_; | |
| 85 | |
| 86 return $self->new( | |
| 87 status => $args{status} || '303 See other', | |
| 88 headers => { | |
| 89 location => $args{location} | |
| 90 } | |
| 91 ); | |
| 92 } | |
| 93 | |
| 245 | 94 sub NoContent { |
| 95 my ($self,%args) = @_; | |
| 96 | |
| 97 return $self->new( | |
| 98 status => $args{status} || '204 No Content' | |
| 99 ); | |
| 100 } | |
| 101 | |
| 213 | 102 1; |
| 103 | |
| 104 __END__ | |
| 105 | |
| 106 =pod | |
| 107 | |
| 108 =head1 NAME | |
| 109 | |
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110 C<IMPL::Web::HttpResponse> - Результат обработки C<HTTP> запроса. |
| 213 | 111 |
| 112 =head1 SYNOPSIS | |
| 113 | |
| 114 =head1 DESCRIPTION | |
| 115 | |
| 116 Базовый класс для ответов приложения на C<HTTP> запрос. Каждый вид ответа, | |
| 117 например | |
| 118 | |
| 119 Данный объект используется для формирования и передачи данных C<HTTP> ответа | |
| 120 напрямую. Основными полями являются C<body> и C<status>. | |
| 121 | |
| 122 Кроме свойств относящихся непосредственно к самому C<HTTP> ответу, данный объект | |
| 123 может содержать свойства относящиеся к процессу обработки запроса, например | |
| 124 механизму формирования представления. | |
| 125 | |
| 126 =head1 MEMBERS | |
| 127 | |
| 128 =head2 C<[get,set]status> | |
| 129 | |
| 130 Статус который будет отправлен сервером клиенту, например, C<200 OK> или | |
| 131 C<204 No response>. Если не указан, то будет C<200 OK>. | |
| 132 | |
| 133 =head2 C<[get,set]type> | |
| 134 | |
| 135 Тип содержимого, которое будет передано клиенту, если не указано, будет | |
| 136 C<text/html>. | |
| 137 | |
| 138 =head2 C<[get,set]charset> | |
| 139 | |
| 140 Кодировка в которой будут переданны данные. Следует задавать если и только, если | |
| 141 передается текстовая информация. Если указана кодировка, то она будет | |
| 142 автоматически применена к потоку, который будет передан методу C<PrintResponse>. | |
| 143 | |
| 144 =head2 C<[get,set]cookies> | |
| 145 | |
| 146 Опционально. Ссылка на хеш с печеньками. | |
| 147 | |
| 148 =head2 C<[get,set]headers> | |
| 149 | |
| 150 Опционально. Ссылка на хеш с дополнительными полями заголовка ответа. Формат | |
| 151 имен полей как у модуля C<CGI>. | |
| 152 | |
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153 =begin code |
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154 |
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155 $response->header->{custom_header} = "my value"; |
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156 |
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157 #will produce the following header |
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158 |
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159 Custom-header: my value |
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160 |
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161 =end code |
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162 |
| 213 | 163 =head2 C<[get,set]body> |
| 164 | |
| 165 Тело ответа. Может быть как простой скаляр, который будет приведен к строке и | |
| 166 выдан в поток вывода метода C<PrintResponse>. Также может быть ссылкой на | |
| 167 процедуру, в таком случае будет вызвана эта процедура и ей будет передан | |
| 168 первым параметром поток для вывода тела ответа. | |
| 169 | |
| 170 =head2 C<PrintResponse($outStream)> | |
| 171 | |
| 172 Формирует заголовок и выводит ответ сервера в указанный параметром поток. | |
| 173 | |
| 174 =cut |