From 05cd781b255a55202757d78292e6f484bc2d4837 Mon Sep 17 00:00:00 2001
From: Simon Poole <simon@mail.poole.ch>
Date: Tue, 18 Aug 2015 22:45:16 +0200
Subject: [PATCH] Remove default enabling of gravatar, check on initial
 confirmation of e-mail address and on any changes afterward if a gravatar
 exists and enable then if the user hasn't uploaded a picture.

---
 app/controllers/user_controller.rb            | 21 +++++++++++++++++++
 config/locales/en.yml                         |  2 ++
 ...t_default_gravatar_to_false_for_privacy.rb |  9 ++++++++
 test/controllers/user_controller_test.rb      |  4 ++--
 4 files changed, 34 insertions(+), 2 deletions(-)
 create mode 100644 db/migrate/20131029121300_set_default_gravatar_to_false_for_privacy.rb

diff --git a/app/controllers/user_controller.rb b/app/controllers/user_controller.rb
index c8abb4d85..426a96424 100644
--- a/app/controllers/user_controller.rb
+++ b/app/controllers/user_controller.rb
@@ -297,6 +297,7 @@ class UserController < ApplicationController
         user = token.user
         user.status = "active"
         user.email_valid = true
+        gravatar_enable(user)
         user.save!
         referer = token.referer
         token.destroy
@@ -348,6 +349,7 @@ class UserController < ApplicationController
         @user.email = @user.new_email
         @user.new_email = nil
         @user.email_valid = true
+        gravatar_enable(@user)
         if @user.save
           flash[:notice] = t "user.confirm_email.success"
         else
@@ -799,4 +801,23 @@ class UserController < ApplicationController
 
     !blocked
   end
+
+  ##
+  # check if this user has a gravatar and set the user pref is true
+  def gravatar_enable(user)
+    # code from example https://en.gravatar.com/site/implement/images/ruby/
+    return if user.image.present?
+    hash = Digest::MD5.hexdigest(user.email.downcase)
+    url = "https://www.gravatar.com/avatar/#{hash}?d=404" # without  d=404 we will always get an image back
+    response = OSM.http_client.get(URI.parse(url))
+    oldsetting = user.image_use_gravatar
+    user.image_use_gravatar = response.success?
+    if oldsetting != user.image_use_gravatar
+      flash[:warning] = if user.image_use_gravatar
+                          t "user.account.gravatar.enabled"
+                        else
+                          t "user.account.gravatar.disabled"
+                        end
+    end
+  end
 end
diff --git a/config/locales/en.yml b/config/locales/en.yml
index c8731ee97..effe6075e 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -1925,6 +1925,8 @@ en:
         gravatar: "Use Gravatar"
         link: "http://wiki.openstreetmap.org/wiki/Gravatar"
         link text: "what is this?"
+        disabled: "Gravatar disabled!"
+        enabled: "Gravatar enabled!"
       new image: "Add an image"
       keep image: "Keep the current image"
       delete image: "Remove the current image"
diff --git a/db/migrate/20131029121300_set_default_gravatar_to_false_for_privacy.rb b/db/migrate/20131029121300_set_default_gravatar_to_false_for_privacy.rb
new file mode 100644
index 000000000..49f94c9de
--- /dev/null
+++ b/db/migrate/20131029121300_set_default_gravatar_to_false_for_privacy.rb
@@ -0,0 +1,9 @@
+class SetDefaultGravatarToFalseForPrivacy < ActiveRecord::Migration
+  def up
+    change_column :users, :image_use_gravatar, :boolean, :default => false
+  end
+
+  def down
+    change_column :users, :image_use_gravatar, :boolean, :default => true
+  end
+end
diff --git a/test/controllers/user_controller_test.rb b/test/controllers/user_controller_test.rb
index 8c3b8adcd..60dde019a 100644
--- a/test/controllers/user_controller_test.rb
+++ b/test/controllers/user_controller_test.rb
@@ -961,7 +961,7 @@ class UserControllerTest < ActionController::TestCase
     assert_select "contributor-terms", :count => 1 do
       assert_select "[agreed='true']"
     end
-    assert_select "img", :count => 1
+    assert_select "img", :count => 0
     assert_select "roles", :count => 1 do
       assert_select "role", :count => 0
     end
@@ -1013,7 +1013,7 @@ class UserControllerTest < ActionController::TestCase
     assert_select "contributor-terms", :count => 1 do
       assert_select "[agreed='true'][pd='false']"
     end
-    assert_select "img", :count => 1
+    assert_select "img", :count => 0
     assert_select "roles", :count => 1 do
       assert_select "role", :count => 0
     end
-- 
2.43.2