From fc12d7ce1e642c41147a02a7723c179ad5b9e394 Mon Sep 17 00:00:00 2001
From: Alex 'AdUser' Z <ad_user@runbox.com>
Date: Sun, 10 May 2015 18:57:14 +1000
Subject: [PATCH] + LDV::Imgbin

---
 lib/LDV/Imgbin.pm | 127 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 127 insertions(+)
 create mode 100644 lib/LDV/Imgbin.pm

diff --git a/lib/LDV/Imgbin.pm b/lib/LDV/Imgbin.pm
new file mode 100644
index 0000000..7715b61
--- /dev/null
+++ b/lib/LDV/Imgbin.pm
@@ -0,0 +1,127 @@
+package LDV::Imgbin;
+
+use strict;
+use warnings;
+use utf8;
+
+use Mojo::Base 'Mojolicious::Controller';
+use Mojo::JSON;
+use Mojo::Asset::File;
+use Imager;
+
+sub _data_path {
+  my ($self, $time) = @_;
+  my $root = $self->app->config->{imgbin}->{root};
+
+  return $self->app->home->rel_file("$root/$time.json");
+}
+
+sub _image_path {
+  my ($self, $time, $ext, $full) = @_;
+
+  return "/images/full/$time.$ext" unless $full;
+  return $self->app->home->rel_file("public/images/full/$time.$ext");
+}
+
+sub _thumb_path {
+  my ($self, $time, $full) = @_;
+  my $ext = $self->app->config->{imgbin}->{thumbs_ext};
+
+  return "/images/small/$time.$ext" unless $full;
+  return $self->app->home->rel_file("public/images/small/$time.$ext");
+}
+
+sub create {
+  my ($self) = @_;
+
+  $self->stash(maxsize => $self->config->{imgbin}->{maxsize});
+  $self->render();
+}
+
+sub view {
+  my ($self) = @_;
+  my $time = $self->stash('time');
+
+  eval {
+    my $path = $self->_data_path($time);
+    my $data = Mojo::Asset::File->new(path => $path);
+    $data->cleanup(0);
+    my $json = Mojo::JSON->new->decode($data->slurp);
+    $json->{path} = $self->_image_path($time, $json->{format});
+
+    $self->stash(image => $json); 1;
+    $self->render(); 1;
+  } or do {
+    $self->flash(error => $@);
+    $self->redirect_to('/imgbin');
+  };
+
+  $self->rendered();
+}
+
+sub save {
+  my ($self) = @_;
+
+  eval {
+    die ("request too large\n") if $self->req->is_limit_exceeded;
+
+    my $time = time();
+    my $conf = $self->app->config->{imgbin};
+    my $upload = $self->req->upload('file');
+    my $expire = $self->req->param('expire') || 7; # days
+    die("no file uploaded\n") unless ($upload and $upload->size > 0);
+    die("file too large\n")   if ($upload->size > $conf->{maxsize});
+
+    # hack: don't use memory backend
+    {
+      my $path = POSIX::tmpnam;
+      $upload->move_to($path);
+      $upload->asset(Mojo::Asset::File->new(path => $path));
+      $upload->asset->cleanup(1); # rearm self-destruction
+    }
+
+    my ($im_w, $im_h) = ($conf->{maxres} =~ m/(\d+)x(\d+)/oi);
+    Imager->set_file_limits(
+      width => $im_w, height => $im_h,
+      bytes => $conf->{maxsize},
+    );
+
+    my $image = Imager->new(file => $upload->asset->path)
+      or die Imager->errstr();
+
+    my $json = {
+      comment => $image->tags(name => 'i_comment') // '',
+      format  => $image->tags(name => 'i_format'),
+      expire  => $time + $expire * 86400, # expired *after* this time
+      width   => $image->getwidth,
+      height  => $image->getheight,
+      name    => $upload->filename,
+      size    => $upload->size,
+    };
+
+    my ($th_w, $th_h) = ($conf->{thumbs_size} =~ m/(\d+)x(\d+)/oi);
+    my $thumb = $image->scale(xpixels => $th_w, ypixels => $th_h, type => 'min');
+    $thumb->write(file => $self->_thumb_path($time, 'fullpath'))
+      or die $thumb->errstr;
+    $upload->move_to($self->_image_path($time, $json->{format}, 'fullpath'));
+
+    my $data = Mojo::Asset::File->new(path => $self->_data_path($time));
+    $data->add_chunk(Mojo::JSON->new->encode($json));
+    $data->move_to($self->_data_path($time));
+
+    $self->redirect_to("/imgbin/$time");
+  } or do {
+    $self->flash(error => $@);
+    $self->redirect_to('/imgbin');
+  };
+
+  $self->rendered();
+}
+
+sub prune {
+  my ($self) = @_;
+
+  die("unimplemented\n");
+}
+
+1;