/usr/share/perl5/Mojolicious/Static.pm is in libmojolicious-perl 2.98+dfsg-2.
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 | package Mojolicious::Static;
use Mojo::Base -base;
use File::Spec::Functions 'catfile';
use Mojo::Asset::File;
use Mojo::Asset::Memory;
use Mojo::Command;
use Mojo::Content::Single;
use Mojo::Home;
use Mojo::Path;
has classes => sub { ['main'] };
has paths => sub { [] };
# DEPRECATED in Leaf Fluttering In Wind!
sub default_static_class {
warn <<EOF;
Mojolicious::Static->default_static_class is DEPRECATED in favor of
Mojolicious::Static->classes!
EOF
my $self = shift;
return $self->classes->[0] unless @_;
$self->classes->[0] = shift;
return $self;
}
# "Valentine's Day's coming? Aw crap! I forgot to get a girlfriend again!"
sub dispatch {
my ($self, $c) = @_;
# Already rendered
return if $c->res->code;
# Canonical path
my $stash = $c->stash;
my $path = $stash->{path}
|| $c->req->url->path->clone->canonicalize->to_string;
# Split parts
my @parts = @{Mojo::Path->new->parse($path)->parts};
return unless @parts;
# Prevent directory traversal
return if $parts[0] eq '..';
# Serve static file
return unless $self->serve($c, join('/', @parts));
$stash->{'mojo.static'}++;
return $c->rendered;
}
sub serve {
my ($self, $c, $rel) = @_;
# Search all paths
my $asset;
my $size = 0;
my $modified = $self->{modified} ||= time;
my $res = $c->res;
for my $path (@{$self->paths}) {
next unless my $data = $self->_get_file(catfile $path, split('/', $rel));
# Exists
last if ($asset, $size, $modified) = @$data;
# Forbidded
$c->app->log->debug(qq{File "$rel" is forbidden.});
$res->code(403) and return;
}
# Search DATA
if (!$asset && defined(my $data = $self->_get_data_file($c, $rel))) {
$size = length $data;
$asset = Mojo::Asset::Memory->new->add_chunk($data);
}
# Search bundled files
elsif (!$asset) {
my $b = $self->{bundled} ||= Mojo::Home->new(Mojo::Home->mojo_lib_dir)
->rel_dir('Mojolicious/public');
my $data = $self->_get_file(catfile($b, split('/', $rel)));
($asset, $size, $modified) = @$data if $data && @$data;
}
# Not a static file
return unless $asset;
# If modified since
my $req_headers = $c->req->headers;
my $res_headers = $res->headers;
if (my $date = $req_headers->if_modified_since) {
# Not modified
my $since = Mojo::Date->new($date)->epoch;
if (defined $since && $since == $modified) {
$res_headers->remove('Content-Type')->remove('Content-Length')
->remove('Content-Disposition');
return $res->code(304);
}
}
# Range
my $start = 0;
my $end = $size - 1 >= 0 ? $size - 1 : 0;
if (my $range = $req_headers->range) {
if ($range =~ m/^bytes=(\d+)-(\d+)?/ && $1 <= $end) {
$start = $1;
$end = $2 if defined $2 && $2 <= $end;
$res->code(206);
$res_headers->content_length($end - $start + 1);
$res_headers->content_range("bytes $start-$end/$size");
}
# Not satisfiable
else { return $res->code(416) }
}
$asset->start_range($start)->end_range($end);
# Serve file
$res->code(200) unless $res->code;
$res->content->asset($asset);
$rel =~ /\.(\w+)$/;
return $res_headers->content_type($c->app->types->type($1) || 'text/plain')
->accept_ranges('bytes')->last_modified(Mojo::Date->new($modified));
}
# "I like being a women.
# Now when I say something stupid, everyone laughs and buys me things."
sub _get_data_file {
my ($self, $c, $rel) = @_;
# Protect templates
return if $rel =~ /\.\w+\.\w+$/;
# Index DATA files
unless ($self->{index}) {
my $index = $self->{index} = {};
for my $class (reverse @{$self->classes}) {
$index->{$_} = $class for keys %{Mojo::Command->get_all_data($class)};
}
}
# Find file
return Mojo::Command->get_data($rel, $self->{index}{$rel});
}
sub _get_file {
my ($self, $path, $rel) = @_;
no warnings 'newline';
return unless -f $path;
return [] unless -r $path;
return [Mojo::Asset::File->new(path => $path), (stat $path)[7, 9]];
}
1;
=head1 NAME
Mojolicious::Static - Serve static files
=head1 SYNOPSIS
use Mojolicious::Static;
my $static = Mojolicious::Static->new;
=head1 DESCRIPTION
L<Mojolicious::Static> is a dispatcher for static files with C<Range> and
C<If-Modified-Since> support.
=head1 ATTRIBUTES
L<Mojolicious::Static> implements the following attributes.
=head2 C<classes>
my $classes = $static->classes;
$static = $static->classes(['main']);
Classes to use for finding files in C<DATA> sections, first one has the
highest precedence, defaults to C<main>.
# Add another class with static files in DATA section
push @{$static->classes}, 'Mojolicious::Plugin::Fun';
=head2 C<paths>
my $paths = $static->paths;
$static = $static->paths(['/home/sri/public']);
Directories to serve static files from, first one has the highest precedence.
# Add another "public" directory
push @{$static->paths}, '/home/sri/public';
=head1 METHODS
L<Mojolicious::Static> inherits all methods from L<Mojo::Base> and implements
the following ones.
=head2 C<dispatch>
my $success = $static->dispatch(Mojolicious::Controller->new);
Serve static file for L<Mojolicious::Controller> object.
=head2 C<serve>
my $success = $static->serve(Mojolicious::Controller->new, 'foo/bar.html');
Serve a specific file, relative to C<paths> or from C<classes>.
=head1 SEE ALSO
L<Mojolicious>, L<Mojolicious::Guides>, L<http://mojolicio.us>.
=cut
|