From e448e489e21c541fae8cf3bb37ca5b6ecb304fc5 Mon Sep 17 00:00:00 2001
From: ghostrigger <lugmokdusa_mla@yepmail.net>
Date: Sun, 22 Jun 2014 23:18:51 +0800
Subject: [PATCH] #1866: support e-hentai source redirection

* hopefully prevents error pages when the url during upload expires
* makes use of file sha-1 hash and filename in the url to query the e-hentai search page
* the file hash by itself is enough to generate a result but the filename is also added for completeness (the page displays the filename being searched)
* ip addresses, port numbers, and unix timestamps validation can also be added later
* a better solution maybe is to get the gallery ids and gallery tokens directly
---
 app/models/post.rb | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/app/models/post.rb b/app/models/post.rb
index d649e3194..915794fe1 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -331,6 +331,11 @@ class Post < ActiveRecord::Base
         subdomain = $1
         filename = $2
         "http://#{subdomain}.wikia.com/wiki/File:#{filename}"
+        
+      when %r{\Ahttp://(?:(?:\d{1,3}\.){1,3}\d{1,3}):(?:\d{1,5})/h/([a-f0-9]{40})-(?:\d+-){3}(?:png|gif|(?:jpe?g?))/keystamp=\d+-[a-f0-9]{10}/([^/]+)}i
+        sha1hash = $1
+        filename = $2
+      "http://g.e-hentai.org/?f_shash=#{sha1hash}&fs_from=#{filename}"
 
       else
         source