Mercurial > pub > Impl
view Lib/IMPL/Web/Application/Response.pm @ 171:59e5fcb59d86
Исправления, изменена концепция веб-форм
author | sourcer |
---|---|
date | Mon, 06 Jun 2011 03:30:36 +0400 |
parents | 4267a2ac3d46 |
children | aaab45153411 |
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package IMPL::Web::Application::Response; use strict; use parent qw(IMPL::Object IMPL::Object::Autofill); require IMPL::Exception; require CGI; require CGI::Cookie; use Carp; use Encode; use IMPL::Class::Property; #todo: add binary method to set a binary encoding, set it automatic when type isn't a text BEGIN { # public property query => prop_get | owner_set; # cgi query public property status => prop_all, { validator => \&_checkHeaderPrinted }; public property contentType => prop_all, { validator => \&_checkHeaderPrinted }; # String public property charset => { get => \&_charset, set => \&_charset }, { validator => \&_checkHeaderPrinted }; public property expires => prop_all, { validator => \&_checkHeaderPrinted }; public property cookies => prop_all, { validator => \&_checkHeaderPrinted }; # Hash public property buffered => prop_all, { validator => \&_canChangeBuffer }; # Boolean public property streamOut => prop_get | owner_set; # stream public property streamBody => {get => \&getStreamBody }; # stream public property isHeaderPrinted => prop_get | owner_set; # Boolean private property _bufferBody => prop_all; private property _streamBody => prop_all; } __PACKAGE__->PassThroughArgs; our %CTOR = ( 'IMPL::Object::Autofill' => sub { my %args = @_; $args{query} = CGI->new($args{query} || {}); %args; } ); sub CTOR { my ($this,%args) = @_; if (lc $this->streamOut eq 'memory') { my $dummy = ''; open my $hout, '>:encoding(utf8)', \$dummy or die new IMPL::Exception("Failed to create memory stream",$!); $this->streamOut($hout); } elsif (not $this->streamOut) { $this->streamOut(*STDOUT); } else { die new IMPL::InvalidArgumentException("Invalid parameter value",$this->streamOut); } $this->buffered(1) unless defined $this->buffered; binmode $this->streamOut, ":encoding(".$this->charset.")"; } sub _checkHeaderPrinted { my ($this,$value) = @_; die new IMPL::InvalidOperationException() if $this->isHeaderPrinted; } sub _canChangeBuffer { my ($this,$value) = @_; die new IMPL::InvalidOperationException() if $this->isHeaderPrinted or $this->_streamBody; } sub _charset { my $this = shift; if (@_) { my $charset = $this->query->charset(@_); my $hout = $this->streamOut; binmode $hout; binmode $hout, ":encoding($charset)"; return $charset; } else { return $this->query->charset; } } sub _PrintHeader { my ($this) = @_; unless ($this->isHeaderPrinted) { $this->isHeaderPrinted(1); my %opt; $opt{-type} = $this->contentType if $this->contentType; $opt{-status} = $this->status if $this->status; $opt{-expires} = $this->expires if $this->expires; my $refCookies = $this->cookies; $opt{-cookie} = [map _createCookie($_,$refCookies->{$_}), keys %$refCookies] if $refCookies; my $hOut = $this->streamOut; print $hOut $this->query->header( %opt ); } } sub _createCookie { return UNIVERSAL::isa($_[1], 'CGI::Cookie') ? $_[1] : CGI::Cookie->new(-name => $_[0], -value => $_[1] ); } sub setCookie { my ($this,$name,$value) = @_; unless ($this->cookies) { $this->cookies({$name,$value}); } else { $this->_checkHeaderPrinted(); $this->cookies->{$name} = $value; } return $value; } sub getStreamBody { my ($this) = @_; return undef unless $this->streamOut; unless ($this->_streamBody) { if ($this->buffered) { my $buffer = ""; $this->_bufferBody(\$buffer); open my $hBody, ">:encoding(utf-8)", \$buffer or die new IMPL::Exception("Failed to create buffer",$!); Encode::_utf8_on($buffer); $this->_streamBody($hBody); } else { $this->_PrintHeader(); $this->_streamBody($this->streamOut); } } return $this->_streamBody; } sub Complete { my ($this) = @_; return 0 unless $this->streamOut; my $hOut = $this->streamOut; $this->_PrintHeader(); close $this->_streamBody(); if ($this->buffered) { print $hOut ${$this->_bufferBody}; } $this->_bufferBody(undef); $this->streamOut(undef); return 1; } sub Discard { my ($this) = @_; carp "Discarding sent response" if $this->isHeaderPrinted; $this->_streamBody(undef); $this->_bufferBody(undef); $this->streamOut(undef); } 1; __END__ =pod =head1 NAME C<IMPL::Web::Application::Response> - . =head1 DESCRIPTION C<[Infrastructure]> . C<IMPL::Web::Application::Action> . C<IMPL::Web::QueryHandler> . , . C< isHeaderPrinted > . =head1 PROPERTIES =head2 HTTP Header HTTP . . C< IMPL::InvalidOperationException >. =over =item C< [get] query > CGI , , . . =item C< [get,set] status > HTTP. , '200 OK'. , '200 '. =item C< [get,set] contentType > MIME. , 'text/html'. =item C< [get,set] charset > , query->charset. =item C< [get,set] expires > , '+10m'. . =item C< [get,set] cookies > cookies, C< { cart => ['foo','bar'], display => 'list' } >. =back =head2 Response behaviour . =over =item C< [get,set] buffered > C< True > - C< Complete >, C< Complete >. C< False > - , C< streamBody > . =item C< [get] streamOut > CGI . =item C< [get] streamBody > . =item C< [get] isHeadPrinted > , . =back =head1 METHODS =over =item C< Complete > . =item C< Discard > , (, ) , STDERR. =back =head1 REMARKS , .. . =cut