From 7a0b08540aec456ac0a8432d605c536c5c8ed526 Mon Sep 17 00:00:00 2001
From: Stefan Sundin <git@stefansundin.com>
Date: Fri, 12 Jul 2019 12:59:18 -0700
Subject: [PATCH] Add custom error for Instagram 429 errors.. In the week, I
 have started seeing tens of thousands of these errors per day. There is
 obviously a moron abusing the service right now. I will start blocking IPs
 real soon.

---
 app/instagram.rb | 9 +++++++++
 lib/http.rb      | 2 +-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/app/instagram.rb b/app/instagram.rb
index 6e676fd..4ef78d2 100644
--- a/app/instagram.rb
+++ b/app/instagram.rb
@@ -1,6 +1,7 @@
 # frozen_string_literal: true
 
 class InstagramError < HTTPError; end
+class InstagramRatelimitError < HTTPError; end
 class InstagramTokenError < InstagramError; end
 
 class Instagram < HTTP
@@ -29,6 +30,9 @@ def self.get(url, options={headers: {}}, tokens={csrftoken: nil})
     if response.code == 403
       raise(InstagramTokenError, response)
     end
+    if response.code == 429
+      raise(InstagramRatelimitError)
+    end
     response
   end
 
@@ -62,3 +66,8 @@ def self.get_post(id, opts={}, tokens={})
   status 503
   "There was a problem talking to Instagram. Please try again in a moment."
 end
+
+error InstagramRatelimitError do |e|
+  status 429
+  "There are too many requests going to Instagram right now. Someone is probably abusing this service. PLEASE SLOW DOWN!"
+end
diff --git a/lib/http.rb b/lib/http.rb
index 70b54fb..d68a9bf 100644
--- a/lib/http.rb
+++ b/lib/http.rb
@@ -109,7 +109,7 @@ def redirect_same_origin?
 end
 
 class HTTPError < StandardError
-  def initialize(obj)
+  def initialize(obj=nil)
     @obj = obj
   end