Add /go, rename Exception to Error.

Gemfile.lock

@@ -61,7 +61,7 @@ GEM
       rack (~> 1.4)
       rack-protection (~> 1.4)
       tilt (>= 1.3, < 3)
-    sinatra-contrib (1.4.4)
+    sinatra-contrib (1.4.6)
       backports (>= 2.0)
       multi_json
       rack-protection

app.rb

@@ -3,9 +3,9 @@
 require "erb"
 require "active_support/core_ext/string"
 
-class YoutubeException < Exception; end
-class FacebookException < Exception; end
-class InstagramException < Exception; end
+class YoutubeError < StandardError; end
+class FacebookError < StandardError; end
+class InstagramError < StandardError; end
 
 def httparty_error(r)
   "#{r.request.path.to_s}: #{r.code} #{r.message}: #{r.body}. #{r.headers.to_h.to_json}"
@@ -16,6 +16,19 @@ def httparty_error(r)
   erb :index
 end
 
+get "/go" do
+  return "Insufficient parameters" if params[:q].empty?
+  if /^https?:\/\/(www\.)?youtu(\.?be|be\.com)/ =~ params[:q]
+    redirect "/youtube?q=#{params[:q]}"
+  elsif /^https?:\/\/(www\.)?facebook\.com/ =~ params[:q]
+    redirect "/facebook?q=#{params[:q]}"
+  elsif /^https?:\/\/(www\.)?instagram\.com/ =~ params[:q]
+    redirect "/instagram?q=#{params[:q]}"
+  else
+    "Unknown service"
+  end
+end
+
 get "/youtube" do
   return "Insufficient parameters" if params[:q].empty?
 
@@ -41,7 +54,7 @@ def httparty_error(r)
   if user
     response = HTTParty.get("https://www.googleapis.com/youtube/v3/channels?part=id&forUsername=#{user}&key=#{ENV["GOOGLE_API_KEY"]}")
     if !response.success?
-      raise YoutubeException, response
+      raise YoutubeError, response
     end
     if response.parsed_response["items"].length > 0
       channel_id = response.parsed_response["items"][0]["id"]
@@ -51,7 +64,7 @@ def httparty_error(r)
   if video_id
     response = HTTParty.get("https://www.googleapis.com/youtube/v3/videos?part=snippet&id=#{video_id}&key=#{ENV["GOOGLE_API_KEY"]}")
     if !response.success?
-      raise YoutubeException, response
+      raise YoutubeError, response
     end
     if response.parsed_response["items"].length > 0
       channel_id = response.parsed_response["items"][0]["snippet"]["channelId"]
@@ -76,7 +89,7 @@ def httparty_error(r)
 
   response = HTTParty.get("https://graph.facebook.com/v2.3/#{name}?access_token=#{ENV["FACEBOOK_APP_ID"]}|#{ENV["FACEBOOK_APP_SECRET"]}")
   return "Can't find a page with that name. Sorry." if response.code == 404
-  raise FacebookException, response if !response.success?
+  raise FacebookError, response if !response.success?
 
   data = response.parsed_response
   redirect "/facebook/#{data["id"]}/#{data["username"]}"
@@ -86,7 +99,7 @@ def httparty_error(r)
   @id = id
 
   response = HTTParty.get("https://graph.facebook.com/v2.3/#{id}/posts?access_token=#{ENV["FACEBOOK_APP_ID"]}|#{ENV["FACEBOOK_APP_SECRET"]}")
-  raise FacebookException, response if !response.success?
+  raise FacebookError, response if !response.success?
 
   @data = response.parsed_response["data"]
   @user = @data[0]["from"]["name"] rescue username
@@ -106,7 +119,7 @@ def httparty_error(r)
       redirect_uri: request.base_url+request.path_info,
       code: params[:code]
     })
-    raise InstagramException, httparty_error(response) if !response.success?
+    raise InstagramError, httparty_error(response) if !response.success?
     headers "Content-Type" => "text/plain"
     "heroku config:set INSTAGRAM_ACCESS_TOKEN=#{response.parsed_response["access_token"]}"
   else
@@ -130,7 +143,7 @@ def httparty_error(r)
 
   if name
     response = HTTParty.get("https://api.instagram.com/v1/users/search?q=#{name}&access_token=#{ENV["INSTAGRAM_ACCESS_TOKEN"]}")
-    raise InstagramException, response if !response.success?
+    raise InstagramError, response if !response.success?
     user = response.parsed_response["data"].find { |user| user["username"] == name }
   end
 
@@ -151,7 +164,7 @@ def httparty_error(r)
     headers "Content-Type" => "application/atom+xml;charset=utf-8"
     return erb :instagram_error
   end
-  raise InstagramException, response if !response.success?
+  raise InstagramError, response if !response.success?
 
   @data = response.parsed_response["data"]
   @user = @data[0]["user"]["username"] rescue username
@@ -185,17 +198,21 @@ def httparty_error(r)
 
 
 error do
+  status 500
   "Sorry, a nasty error occurred: #{env["sinatra.error"].message}"
 end
 
-error YoutubeException do
+error YoutubeError do
+  status 503
   "There was a problem talking to YouTube."
 end
 
-error FacebookException do
+error FacebookError do
+  status 503
   "There was a problem talking to Facebook."
 end
 
-error InstagramException do
+error InstagramError do
+  status 503
   "There was a problem talking to Instagram."
 end