Add license fingerprint and catch errors in HTTParty

app/views/admin/application_settings/_form.html.haml

@@ -62,7 +62,7 @@
             = f.check_box :usage_ping_enabled
             Usage ping enabled
           .help-block
-            Every week GitLab will report license usage back to a GitLab server.
+            Every week GitLab will report license usage back to GitLab, Inc.
             Disable this option if you do not want this to occur.
     .form-group
       .col-sm-offset-2.col-sm-10

app/workers/gitlab_usage_ping_worker.rb

@@ -14,10 +14,14 @@ class GitlabUsagePingWorker
     # Multiple Sidekiq workers could run this. We should only do this at most once a day.
     return unless try_obtain_lease
 
+    begin
       HTTParty.post(url,
                     body: data.to_json,
                     headers: { 'Content-type' => 'application/json' }
                    )
+    rescue HTTParty::Error => e
+      Rails.logger.info "Unable to contact GitLab, Inc.: #{e}"
+    end
   end
 
   def try_obtain_lease
@@ -30,6 +34,7 @@ class GitlabUsagePingWorker
     license = License.current
 
     if license
+      usage_data[:license_md5] = Digest::MD5.hexdigest(license.data)
       usage_data[:historical_max_users] = max_historical_user_count
       usage_data[:licensee] = license.licensee
       usage_data[:license_user_count] = license.user_count

db/schema.rb

@@ -94,7 +94,7 @@ ActiveRecord::Schema.define(version: 20160713222618) do
     t.string   "elasticsearch_host",                    default: "localhost"
     t.string   "elasticsearch_port",                    default: "9200"
     t.string   "repository_storage",                    default: "default"
-    t.string   "enabled_git_access_protocol",
+    t.string   "enabled_git_access_protocol"
     t.boolean  "usage_ping_enabled",                    default: true,        null: false
   end
 

spec/workers/gitlab_usage_ping_worker_spec.rb

@@ -7,6 +7,7 @@ describe GitlabUsagePingWorker do
     data = subject.data
     license = License.current
 
+    expect(data[:license_md5]).to eq(Digest::MD5.hexdigest(license.data))
     expect(data[:version]).to eq(Gitlab::VERSION)
     expect(data[:licensee]).to eq(license.licensee)
     expect(data[:active_users]).to eq(User.active.count)