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#!/usr/bin/perl
# This file is part of sakisafe.
use if $^O eq "openbsd", OpenBSD::Pledge, qw(pledge);
use Mojolicious::Lite -signatures;
use Mojolicious::Routes::Pattern;
use List::MoreUtils qw(uniq);
use Carp;
use Term::ANSIColor;
use English;
use MIME::Types;
use Path::Tiny;
use warnings;
use experimental 'signatures';
use feature 'say';
plugin 'RenderFile';
# OpenBSD promises.
pledge("stdio prot_exec cpath rpath wpath inet flock fattr")
if $^O eq "openbsd";
# 500 MBs
my $MAX_SIZE = 1024 * 1024 * 200;
my @BANNED = eval { path('banned.txt')->slurp_utf8 }
or qw(); # Add banned IP addresses here
my @BANNED_EXTS = eval { path('banned_exts.txt')->slurp_utf8 }
or qw(); # Add forbidden files extensions here
my $dirname;
my $link;
mkdir "f";
# Function to handle file uploads
sub logger ( $level, $address, $message ) {
open( my $fh, ">>", "sakisafe.log" );
printf( $fh "[%s]: %s has uploaded file %s\n", $level, $address, $message );
close($fh);
}
sub handle_file {
my $c = shift;
my $filedata = $c->param("file");
if ( $filedata->size > $MAX_SIZE ) {
return $c->render(
text => "Max upload size: $MAX_SIZE",
status => 400
);
}
if ( List::MoreUtils::any { /$c->tx->remote_address/ } uniq @BANNED ) {
$c->render(
text =>
"Hi! Seems like the server admin added your IP address to the banned IP array."
. "As the developer of sakisafe, I can't do anything.",
status => 403
);
return;
}
# Generate random string for the directory
my @chars = ( '0' .. '9', 'a' .. 'Z' );
$dirname .= $chars[ rand @chars ] for 1 .. 5;
my $filename = $filedata->filename;
my ($ext) = $filename =~ /(\.[^.]+)$/;
if ( List::MoreUtils::any { /$ext/ } uniq @BANNED_EXTS ) {
$c->render( text => "You cannot this filetype.\n", status => 415 );
say $ext;
logger( "WARN", $c->tx->remote_address, $dirname . "/" . $filename );
return;
}
carp( color("bold yellow"),
"sakisafe warning: could not create directory: $ERRNO",
color("reset") )
unless mkdir( "f/" . $dirname );
$filename .= ".txt" if $filename eq "-";
# TODO: get whether the server is http or https
# There's a CGI ENV variable for that.
my $host = $c->req->url->to_abs->host;
my $ua = $c->req->headers->user_agent;
$filedata->move_to( "f/" . $dirname . "/" . $filename );
$link = "http://$host/f/$dirname/$filename";
$c->stash( link => $link, host => $host, dirname => $dirname );
$c->res->headers->header( 'Location' => "$link" . $filename );
# Only give the link to curl, html template for others.
if ( $ua =~ m/curl/ || $ua eq "" ) {
$c->render(
text => $link . "\n",
status => 201,
);
$dirname = "";
}
else {
$c->render(
template => 'file',
status => 201,
);
}
logger( "INFO", $c->tx->remote_address, $dirname . "/" . $filename );
$dirname = "";
}
# Function to log uploaded files
get '/' => 'index';
post '/' => sub ($c) { handle_file($c) };
# Allow files to be downloaded.
get '/f/:dir/#name' => sub ($c) {
my $dir = $c->param("dir");
my $file = $c->param("name");
my $ext = $file;
$ext =~ s/.*\.//;
my $path = "f/" . $dir . "/" . $file;
#carp "sakisafe warning: could not get file: $ERRNO" unless
$c->render( text => "file not found", status => 404 ) unless -e $path;
$c->render_file(
filepath => $path,
format => $ext,
content_disposition => 'inline'
);
};
app->max_request_size( 1024 * 1024 * 100 );
post '/upload' => sub ($c) { handle_file($c) };
app->start;
# Index template
# By default Mojolicious gets the "directory root" from the "public"
# directory, so the css and the favicon from the "public" directory,
# in the root of this repo.
# Not sure why I have to do this filthy hack, could not get Mojolicious
# to get the template here. So a TODO is to fix this.
__DATA__
@@ file.html.ep
<!DOCTYPE html>
<html lang="en">
<head>
<title>jennie safe</title>
<link rel="stylesheet" type="text/css" href="index.css"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<center>
<h1>jennie safe</h1>
<h2>shitless file upload, pastebin and url shorter</h2>
<img src="nobita.png"/>
<h2>LINK</h2>
<code><%= $link %></code>
</center>
<p>Running sakisafe 2.4.0. Dedicated to Jennie Trinh</p>
</body>
</html>
__END__
@@ index.html.ep
<!DOCTYPE html>
<html lang="en">
<head>
<title>jennie safe</title>
<link rel="stylesheet" type="text/css" href="index.css"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<center>
<h1>jennie safe</h1>
<h2>shitless file upload, pastebin and url shorter</h2>
<img src="nobita.png"/>
<h2>USAGE</h2>
<p>POST a file:</p>
<code>curl -F 'file=@yourfile.png' https://<%= $c->req->url->to_abs->host; %></code>
<p>Post your text directly</p>
<code>curl -F 'file=@-' https://<%= $c->req->url->to_abs->host; %></code><br/>
<a href="https://git.suragu.net/svragv/sakisafe">Git repository</a>
</center>
<p>Running sakisafe 2.4.0. Dedicated to Jennie Trinh</p>
<div class="left">
<h2>Or just upload a file here</h2>
<form ENCTYPE='multipart/form-data' method='post' action='/upload'>
<input type='file' name='file' size='30'/>
<input type='submit' value='upload'/>
</form>
</div>
</body>
</html>
__END__
=pod
=head1 sakisafe
sakisafe is a web application using the Mojolicious framework which
allow users to simply upload and share files.
=head2 synopsis
C<./sakisafe.pl daemon -m production>
This will start sakisafe in port 3000. Which should be proxied with
nginx or any reverse proxy software.
=head2 license
The Unlicense.
=head2 author
Raoul Vaughn
=cut
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