/usr/share/perl5/Dancer/Handler.pm is in libdancer-perl 1.3202+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 | package Dancer::Handler;
our $AUTHORITY = 'cpan:SUKRIA';
# ABSTRACT: Dancer request handler
$Dancer::Handler::VERSION = '1.3202';
use strict;
use warnings;
use Carp;
use File::stat;
use HTTP::Headers;
use Dancer::Logger;
use Dancer::GetOpt;
use Dancer::SharedData;
use Dancer::Renderer;
use Dancer::Config 'setting';
use Dancer::ModuleLoader;
use Dancer::Exception qw(:all);
use Dancer::Factory::Hook;
use Encode;
Dancer::Factory::Hook->instance->install_hooks(
qw/on_handler_exception/
);
# This is where we choose which application handler to return
sub get_handler {
my $handler = 'Dancer::Handler::Standalone';
# force PSGI is PLACK_ENV is set
if ($ENV{'PLACK_ENV'}) {
Dancer::Logger::core("PLACK_ENV is set (".$ENV{'PLACK_ENV'}.") forcing PSGI handler");
setting('apphandler' => 'PSGI');
}
# if Plack is detected or set by conf, use the PSGI handler
if ( defined setting('apphandler') ) {
$handler = 'Dancer::Handler::' . setting('apphandler');
}
# load the app handler
my ($loaded, $error) = Dancer::ModuleLoader->load($handler);
raise core_handler => "Unable to load app handler `$handler': $error" if $error;
# OK, everything's fine, load the handler
Dancer::Logger::core('loading ' . $handler . ' handler');
return $handler->new;
}
# handle an incoming request, process it and return a response
sub handle_request {
my ($self, $request) = @_;
my $ip_addr = $request->remote_address || '-';
Dancer::SharedData->reset_all( reset_vars => !$request->is_forward);
Dancer::Logger::core("request: "
. $request->method . " "
. $request->path_info
. " from $ip_addr");
# save the request object
Dancer::SharedData->request($request);
# deserialize the request body if possible
$request = Dancer::Serializer->process_request($request)
if Dancer::App->current->setting('serializer');
# read cookies from client
Dancer::Cookies->init;
Dancer::App->reload_apps if Dancer::Config::setting('auto_reload');
render_request($request);
return $self->render_response();
}
sub render_request {
my $request = shift;
my $action;
$action = try {
Dancer::Renderer->render_file
|| Dancer::Renderer->render_action
|| Dancer::Renderer->render_autopage
|| Dancer::Renderer->render_error(404);
} continuation {
# workflow exception (continuation)
my ($continuation) = @_;
$continuation->isa('Dancer::Continuation::Halted')
or $continuation->rethrow();
# special case for halted workflow continuation: still render the response
Dancer::Serializer->process_response(Dancer::SharedData->response);
} catch {
my ($exception) = @_;
Dancer::Factory::Hook->execute_hooks('on_handler_exception', $exception);
Dancer::Logger::error(
sprintf(
'request to %s %s crashed: %s',
$request->method, $request->path_info, $exception
)
);
# use stringification, to get exception message in case of a
# Dancer::Exception
Dancer::Error->new(
code => 500,
title => "Runtime Error",
message => "$exception",
exception => $exception,
)->render();
};
return $action;
}
sub psgi_app {
my $self = shift;
sub {
my $env = shift;
$self->init_request_headers($env);
my $request = Dancer::Request->new(env => $env);
$self->handle_request($request);
};
}
sub init_request_headers {
my ($self, $env) = @_;
my $psgi_headers = HTTP::Headers->new(
map {
(my $field = $_) =~ s/^HTTPS?_//;
($field => $env->{$_});
}
grep {/^(?:HTTP|CONTENT|COOKIE)/i} keys %$env
);
Dancer::SharedData->headers($psgi_headers);
}
# render a PSGI-formatted response from a response built by
# handle_request()
sub render_response {
my $self = shift;
my $response = Dancer::SharedData->response();
my $content = $response->content;
unless ( ref($content) eq 'GLOB' ) {
my $charset = setting('charset');
my $ctype = $response->header('Content-Type');
if ( $charset && $ctype && _is_text($ctype) ) {
$content = Encode::encode( $charset, $content ) unless $response->_already_encoded;
$response->header( 'Content-Type' => "$ctype; charset=$charset" )
if $ctype !~ /$charset/;
}
if (!defined $response->header('Content-Length')) {
use bytes; # turn off character semantics
$response->header( 'Content-Length' => length($content) );
}
$content = [$content];
}
else {
if ( !defined $response->header('Content-Length') ) {
my $stat = stat $content;
$response->header( 'Content-Length' => $stat->size );
}
}
# drop content if request is HEAD
$content = ['']
if ( defined Dancer::SharedData->request
&& Dancer::SharedData->request->is_head() );
# drop content AND content_length if response is 1xx or (2|3)04
if ($response->status =~ (/^[23]04$/ )) {
$content = [''];
$response->header('Content-Length' => 0);
}
Dancer::Logger::core("response: " . $response->status);
my $status = $response->status();
my $headers = $response->headers_to_array();
# reverse streaming
if ( ref $response->streamed and ref $response->streamed eq 'CODE' ) {
return $response->streamed->(
$status, $headers
);
}
return [ $status, $headers, $content ];
}
sub _is_text {
my ($content_type) = @_;
return $content_type =~ /(\bx(?:ht)?ml\b|text|json|javascript)/;
}
# Fancy banner to print on startup
sub print_banner {
if (setting('startup_info')) {
my $env = setting('environment');
print "== Entering the $env dance floor ...\n";
}
}
sub dance { (shift)->start(@_) }
1;
__END__
=pod
=encoding UTF-8
=head1 NAME
Dancer::Handler - Dancer request handler
=head1 VERSION
version 1.3202
=head1 AUTHOR
Dancer Core Developers
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2010 by Alexis Sukrieh.
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.
=cut
|