Files
lutim/lib/Lutim/Controller.pm
Luc Didry ef6509a3bc Fix #20
2016-06-06 22:26:37 +02:00

618 lines
23 KiB
Perl

# vim:set sw=4 ts=4 sts=4 expandtab:
package Lutim::Controller;
use Mojo::Base 'Mojolicious::Controller';
use Mojo::Util qw(url_unescape b64_encode);
use Mojo::Asset::Memory;
use Mojo::JSON qw(true false);
use DateTime;
use Digest::file qw(digest_file_hex);
use Text::Unidecode;
use Data::Validate::URI qw(is_http_uri is_https_uri);
use File::MimeInfo::Magic qw(mimetype extensions);
use IO::Scalar;
use Image::ExifTool;
use vars qw($im_loaded);
BEGIN {
eval "use Image::Magick";
if ($@) {
warn "You don't have Image::Magick installed so you won't have thumbnails.";
$im_loaded = 0;
} else {
$im_loaded = 1;
}
}
sub home {
my $c = shift;
$c->render(
template => 'index',
max_file_size => $c->req->max_message_size
);
$c->on(finish => sub {
my $c = shift;
$c->app->log->info('[HIT] someone visited site index');
}
);
}
sub about {
shift->render(template => 'about');
}
sub stats {
shift->render(
template => 'stats',
total => LutimModel::Lutim->count('WHERE path IS NOT NULL')
);
}
sub webapp {
my $c = shift;
my $headers = Mojo::Headers->new();
$headers->add('Content-Type' => 'application/x-web-app-manifest+json');
$c->res->content->headers($headers);
$c->render(
template => 'manifest',
format => 'webapp'
);
}
sub get_counter {
my $c = shift;
my $short = $c->param('short');
my $token = $c->param('token');
my @images = LutimModel::Lutim->select('WHERE short = ? AND path IS NOT NULL AND mod_token = ?', ($short, $token));
if (scalar(@images)) {
return $c->render(
json => {
success => true,
counter => $images[0]->counter,
enabled => ($images[0]->enabled) ? true : false
}
);
}
$c->render(
json => {
success => false,
msg => $c->l('Unable to get counter')
}
);
}
sub modify {
my $c = shift;
my $short = $c->param('short');
my $token = $c->param('token');
my $url = $c->param('url');
my @images = LutimModel::Lutim->select('WHERE short = ? AND path IS NOT NULL', $short);
if (scalar(@images)) {
my $image = $images[0];
my $msg;
if ($image->mod_token() ne $token || $token eq '') {
$msg = $c->l('The delete token is invalid.');
} else {
$c->app->log->info('[MODIFICATION] someone modify '.$image->filename.' with token method (path: '.$image->path.')');
$image->update(
delete_at_day => ($c->param('delete-day') && ($c->param('delete-day') <= $c->max_delay || $c->max_delay == 0)) ? $c->param('delete-day') : $c->max_delay,
delete_at_first_view => ($c->param('first-view')) ? 1 : 0,
);
$msg = $c->l('The image\'s delay has been successfully modified');
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->true,
msg => $msg
}
);
} else {
$msg .= ' (<a href="'.$url.'">'.$url.'</a>)' unless (!defined($url));
$c->flash(
success => $msg
);
return $c->redirect_to('/');
}
}
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->false,
msg => $msg
}
);
} else {
$c->flash(
msg => $msg
);
return $c->redirect_to('/');
}
} else {
$c->app->log->info('[UNSUCCESSFUL] someone tried to modify '.$short.' but it does\'nt exist.');
# Image never existed
my $msg = $c->l('Unable to find the image %1.', $short);
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->false,
msg => $msg
}
);
} else {
$c->flash(
msg => $msg
);
return $c->redirect_to('/');
}
}
}
sub delete {
my $c = shift;
my $short = $c->param('short');
my $token = $c->param('token');
my @images = LutimModel::Lutim->select('WHERE short = ? AND path IS NOT NULL', $short);
if (scalar(@images)) {
my $image = $images[0];
my $msg;
if ($image->mod_token() ne $token || $token eq '') {
$msg = $c->l('The delete token is invalid.');
} elsif ($image->enabled() == 0) {
$msg = $c->l('The image %1 has already been deleted.', $image->filename);
} else {
$c->app->log->info('[DELETION] someone made '.$image->filename.' removed with token method (path: '.$image->path.')');
$c->delete_image($image);
return $c->respond_to(
json => {
json => {
success => true,
msg => $c->l('The image %1 has been successfully deleted', $image->filename)
}
},
any => sub {
$c->flash(
success => $c->l('The image %1 has been successfully deleted', $image->filename)
);
return $c->redirect_to('/');
}
);
}
return $c->respond_to(
json => {
json => {
success => false,
msg => $msg
}
},
any => sub {
$c->flash(
msg => $msg
);
return $c->redirect_to('/');
}
);
} else {
$c->app->log->info('[UNSUCCESSFUL] someone tried to delete '.$short.' but it does\'nt exist.');
# Image never existed
return $c->respond_to(
json => {
json => {
success => false,
msg => $c->l('Unable to find the image %1.', $short)
}
},
any => sub {
shift->render_not_found;
}
);
}
}
sub add {
my $c = shift;
my $upload = $c->param('file');
my $file_url = $c->param('lutim-file-url');
my $keep_exif = $c->param('keep-exif');
if(!defined($c->stash('stop_upload'))) {
if (defined($file_url) && $file_url) {
if (is_http_uri($file_url) || is_https_uri($file_url)) {
# Anti-flood protection
my $ip = $c->ip(1);
while (defined($c->app->{wait_for_it}->{$ip}) && (time - $c->app->{wait_for_it}->{$ip}) <= $c->config->{anti_flood_delay} ) {
sleep($c->config->{anti_flood_delay});
}
my $ua = Mojo::UserAgent->new;
my $tx = $ua->get($file_url => {DNT => 1});
if (my $res = $tx->success) {
$file_url = url_unescape $file_url;
$file_url =~ m#^.*/([^/?]*)\??.*$#;
my $filename = $1;
$filename = 'uploaded.image' unless (defined($filename));
$filename .= '.image' if (index($filename, '.') == -1);
$upload = Mojo::Upload->new(
asset => $res->content->asset,
filename => $filename
);
$c->app->{wait_for_it}->{$ip} = time;
} elsif ($tx->res->is_limit_exceeded) {
my $msg = $c->l('The file exceed the size limit (%1)', $tx->res->max_message_size);
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->false,
msg => {
filename => $file_url,
msg => $msg
}
}
);
} else {
$c->flash(msg => $msg);
$c->flash(filename => $upload->filename);
return $c->redirect_to('/');
}
} else {
my $msg = $c->l('An error occured while downloading the image.');
$c->app->log->warn('[DOWNLOAD ERROR]'.$c->dumper($tx->error));
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->false,
msg => {
filename => $file_url,
msg => $msg
}
}
);
} else {
$c->flash(msg => $msg);
$c->flash(filename => $file_url);
return $c->redirect_to('/');
}
}
} else {
my $msg = $c->l('The URL is not valid.');
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->false,
msg => {
filename => $file_url,
msg => $msg
}
}
);
} else {
$c->flash(msg => $msg);
$c->flash(filename => $file_url);
return $c->redirect_to('/');
}
}
}
my $io_scalar = new IO::Scalar \$upload->slurp();
my $mediatype = mimetype($io_scalar);
my ($ext) = ($upload->filename =~ m/.*\.(.*)$/);
my $ip = $c->ip;
my ($msg, $short, $real_short, $token, $thumb, $limit, $created);
# Check file type
if (index($mediatype, 'image/') >= 0) {
# Create directory if needed
mkdir('files', 0700) unless (-d 'files');
if ($c->req->is_limit_exceeded) {
$msg = $c->l('The file exceed the size limit (%1)', $c->req->max_message_size);
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->false,
msg => $msg
}
);
} else {
$c->flash(msg => $msg);
$c->flash(filename => $upload->filename);
return $c->redirect_to('/');
}
}
if(LutimModel->begin) {
my @records = LutimModel::Lutim->select('WHERE path IS NULL LIMIT 1');
if (scalar(@records)) {
# Save file and create record
my $filename = unidecode($upload->filename);
my $ext = ($filename =~ m/([^.]+)$/)[0];
my $path = 'files/'.$records[0]->short.'.'.$ext;
my ($width, $height);
if ($im_loaded && $mediatype ne 'image/svg+xml') { # ImageMagick don't work in Debian with svg (for now?)
my $im = Image::Magick->new;
$im->BlobToImage($upload->slurp);
# Automatic rotation from EXIF tag
$im->AutoOrient();
# Update the uploaded file with it's auto-rotated clone
my $asset = Mojo::Asset::Memory->new->add_chunk($im->ImageToBlob());
$upload->asset($asset);
# Create the thumbnail
$width = $im->Get('width');
$height = $im->Get('height');
$im->Resize(geometry=>'x85');
$thumb = 'data:'.$mediatype.';base64,';
if ($mediatype eq 'image/gif') {
$thumb .= b64_encode $im->[0]->ImageToBlob();
} else {
$thumb .= b64_encode $im->ImageToBlob();
}
}
unless ((defined($keep_exif) && $keep_exif) || $mediatype eq 'image/svg+xml') {
# Remove the EXIF tags
my $data = new IO::Scalar \$upload->slurp();
my $et = new Image::ExifTool;
# Use $data in Image::ExifTool object
$et->ExtractInfo($data);
# Remove all metadata
$et->SetNewValue('*', undef);
# Create a temporary IO::Scalar to write into
my $temp;
my $a = new IO::Scalar \$temp;
$et->WriteInfo($data, $a);
# Update the uploaded file with it's no-tags clone
$data = Mojo::Asset::Memory->new->add_chunk($temp);
$upload->asset($data);
}
my $key;
if ($c->param('crypt') || $c->config->{always_encrypt}) {
($upload, $key) = $c->crypt($upload, $filename);
}
$upload->move_to($path);
$records[0]->update(
path => $path,
filename => $filename,
mediatype => $mediatype,
footprint => digest_file_hex($path, 'SHA-512'),
enabled => 1,
delete_at_day => ($c->param('delete-day') && ($c->param('delete-day') <= $c->max_delay || $c->max_delay == 0)) ? $c->param('delete-day') : $c->max_delay,
delete_at_first_view => ($c->param('first-view')) ? 1 : 0,
created_at => time(),
created_by => $ip,
width => $width,
height => $height
);
# Log image creation
$c->app->log->info('[CREATION] '.$ip.' pushed '.$filename.' (path: '.$path.')');
# Give url to user
$short = $records[0]->short;
$real_short = $short;
if (!defined($records[0]->mod_token)) {
$records[0]->update(
mod_token => $c->shortener($c->config->{token_length})
);
}
$token = $records[0]->mod_token;
$short .= '/'.$key if (defined($key));
$limit = $records[0]->delete_at_day;
$created = $records[0]->created_at;
} else {
# Houston, we have a problem
$msg = $c->l('There is no more available URL. Retry or contact the administrator. %1', $c->config->{contact});
}
}
LutimModel->commit;
} else {
$msg = $c->l('The file %1 is not an image.', $upload->filename);
}
if (defined($c->param('format')) && $c->param('format') eq 'json') {
if (defined($short)) {
$msg = {
filename => $upload->filename,
short => $short,
real_short => $real_short,
token => $token,
ext => $ext || extensions($mediatype),
thumb => $thumb,
del_at_view => ($c->param('first-view')) ? true : false,
limit => $limit,
created_at => $created
};
} else {
$msg = {
filename => $upload->filename,
msg => $msg
};
}
return $c->render(
json => {
success => (defined($short)) ? Mojo::JSON->true : Mojo::JSON->false,
msg => $msg
}
);
} else {
if ((defined($msg))) {
$c->flash(msg => $msg);
$c->flash(filename => $upload->filename);
return $c->redirect_to('/');
} else {
$c->stash(short => $short) if (defined($short));
$c->stash(real_short => $real_short);
$c->stash(token => $token);
$c->stash(ext => $ext || extensions($mediatype));
$c->stash(thumb => $thumb);
$c->stash(filename => $upload->filename);
return $c->render(
template => 'index',
max_file_size => $c->req->max_message_size
);
}
}
} else {
if (defined($c->param('format')) && $c->param('format') eq 'json') {
return $c->render(
json => {
success => Mojo::JSON->false,
msg => {
filename => $upload->filename,
msg => $c->stash('stop_upload')
}
}
);
} else {
$c->flash(msg => $c->stash('stop_upload'));
$c->flash(filename => $upload->filename);
return $c->redirect_to('/');
}
}
}
sub short {
my $c = shift;
my $short = $c->param('short');
my $touit = $c->param('t');
my $key = $c->param('key');
my $thumb = $c->param('thumb');
my $dl = (defined($c->param('dl'))) ? 'attachment' : 'inline';
my @images = LutimModel::Lutim->select('WHERE short = ? AND ENABLED = 1 AND path IS NOT NULL', $short);
if (scalar(@images)) {
if($images[0]->delete_at_day && $images[0]->created_at + $images[0]->delete_at_day * 86400 <= time()) {
# Log deletion
$c->app->log->info('[DELETION] someone tried to view '.$images[0]->filename.' but it has been removed by expiration (path: '.$images[0]->path.')');
# Delete image
$c->delete_image($images[0]);
# Warn user
$c->flash(
msg => $c->l('Unable to find the image: it has been deleted.')
);
return $c->redirect_to('/');
}
my $test;
if (defined($touit)) {
$test = 1;
my $short = $images[0]->short;
$short .= '/'.$key if (defined($key));
my ($width, $height) = (340,340);
if ($images[0]->mediatype eq 'image/gif') {
if (defined($images[0]->width) && defined($images[0]->height)) {
($width, $height) = ($images[0]->width, $images[0]->height);
} elsif ($im_loaded) {
my $upload = $c->decrypt($key, $images[0]->path);
my $im = Image::Magick->new;
$im->BlobToImage($upload->slurp);
$width = $im->Get('width');
$height = $im->Get('height');
$images[0]->update(
width => $width,
height => $height
);
}
}
return $c->render(
template => 'twitter',
layout => undef,
short => $short,
filename => $images[0]->filename,
mimetype => ($c->req->url->to_abs()->scheme eq 'https') ? $images[0]->mediatype : '',
width => $width,
height => $height
);
} else {
# Delete image if needed
if ($images[0]->delete_at_first_view && $images[0]->counter >= 1) {
# Log deletion
$c->app->log->info('[DELETION] someone made '.$images[0]->filename.' removed (path: '.$images[0]->path.')');
# Delete image
$c->delete_image($images[0]);
$c->flash(
msg => $c->l('Unable to find the image: it has been deleted.')
);
return $c->redirect_to('/');
} else {
my $expires = ($images[0]->delete_at_day) ? $images[0]->delete_at_day : 360;
my $dt = DateTime->from_epoch( epoch => $expires * 86400 + $images[0]->created_at);
$dt->set_time_zone('GMT');
$expires = $dt->strftime("%a, %d %b %Y %H:%M:%S GMT");
$test = $c->render_file($images[0]->filename, $images[0]->path, $images[0]->mediatype, $dl, $expires, $images[0]->delete_at_first_view, $key, $thumb);
}
}
if ($test != 500) {
# Update counter
$c->on(finish => sub {
# Log access
$c->app->log->info('[VIEW] someone viewed '.$images[0]->filename.' (path: '.$images[0]->path.')');
# Update record
my $counter = $images[0]->counter + 1;
$images[0]->update(counter => $counter);
$images[0]->update(last_access_at => time());
# Delete image if needed
if ($images[0]->delete_at_first_view) {
# Log deletion
$c->app->log->info('[DELETION] someone made '.$images[0]->filename.' removed (path: '.$images[0]->path.')');
# Delete image
$c->delete_image($images[0]);
}
});
}
} else {
@images = LutimModel::Lutim->select('WHERE short = ? AND ENABLED = 0 AND path IS NOT NULL', $short);
if (scalar(@images)) {
# Log access try
$c->app->log->info('[NOT FOUND] someone tried to view '.$short.' but it does\'nt exist anymore.');
# Warn user
$c->flash(
msg => $c->l('Unable to find the image: it has been deleted.')
);
return $c->redirect_to('/');
} else {
# Image never existed
$c->render_not_found;
}
}
}
1;