add evernote agent and specs

.env.example

@@ -108,6 +108,9 @@ DROPBOX_OAUTH_SECRET=
 WUNDERLIST_OAUTH_KEY=
 WUNDERLIST_OAUTH_SECRET=
 
+EVERNOTE_OAUTH_KEY=
+EVERNOTE_OAUTH_SECRET=
+
 #############################
 #  AWS and Mechanical Turk  #
 #############################

Gemfile

@@ -39,6 +39,10 @@ gem 'omniauth-dropbox'
 # UserLocationAgent
 gem 'haversine'
 
+# EvernoteAgent
+gem 'omniauth-evernote'
+gem 'evernote_oauth'
+
 # Optional Services.
 gem 'omniauth-37signals'          # BasecampAgent
 gem 'omniauth-wunderlist', github: 'wunderlist/omniauth-wunderlist', ref: 'd0910d0396107b9302aa1bc50e74bb140990ccb8'

Gemfile.lock

@@ -179,6 +179,10 @@ GEM
     ethon (0.7.1)
       ffi (>= 1.3.0)
     eventmachine (1.0.7)
+    evernote-thrift (1.25.1)
+    evernote_oauth (0.2.3)
+      evernote-thrift
+      oauth (>= 0.4.1)
     execjs (2.3.0)
     extlib (0.9.16)
     faraday (0.9.1)
@@ -318,6 +322,10 @@ GEM
       omniauth-oauth2 (~> 1.0)
     omniauth-dropbox (0.2.0)
       omniauth-oauth (~> 1.0)
+    omniauth-evernote (1.2.1)
+      evernote-thrift
+      multi_json (~> 1.0)
+      omniauth-oauth (~> 1.0)
     omniauth-oauth (1.0.1)
       oauth
       omniauth (~> 1.0)
@@ -543,6 +551,7 @@ DEPENDENCIES
   dotenv-rails (~> 2.0.1)
   dropbox-api
   em-http-request (~> 1.1.2)
+  evernote_oauth
   faraday (~> 0.9.0)
   faraday_middleware (>= 0.10.0)
   feed-normalizer
@@ -576,6 +585,7 @@ DEPENDENCIES
   omniauth
   omniauth-37signals
   omniauth-dropbox
+  omniauth-evernote
   omniauth-tumblr
   omniauth-twitter
   omniauth-wunderlist!

app/concerns/evernote_concern.rb

@@ -0,0 +1,48 @@
+module EvernoteConcern
+  extend ActiveSupport::Concern
+
+  included do
+    include Oauthable
+
+    validate :validate_evernote_options
+
+    valid_oauth_providers :evernote
+
+    gem_dependency_check { defined?(EvernoteOAuth) && Devise.omniauth_providers.include?(:evernote) }
+  end
+
+  def evernote_client
+    EvernoteOAuth::Client.new(
+      token:           evernote_oauth_token,
+      consumer_key:    evernote_consumer_key,
+      consumer_secret: evernote_consumer_secret,
+      sandbox: false
+    )
+  end
+
+  private
+
+  def validate_evernote_options
+    unless evernote_consumer_key.present? &&
+      evernote_consumer_secret.present? &&
+      evernote_oauth_token.present?
+      errors.add(:base, "Evernote consumer_key, consumer_secret, oauth_token, and oauth_token_secret are required to authenticate with the Twitter API.  You can provide these as options to this Agent, or as Credentials with the same names, but starting with 'evernote_'.")
+    end
+  end
+
+  def evernote_consumer_key
+    (config = Devise.omniauth_configs[:evernote]) && config.strategy.consumer_key
+  end
+
+  def evernote_consumer_secret
+    (config = Devise.omniauth_configs[:evernote]) && config.strategy.consumer_secret
+  end
+
+  def evernote_oauth_token
+    service && service.token
+  end
+
+  def evernote_oauth_token_secret
+    service && service.secret
+  end
+end