error 500 when visit probile mobile and logged out. Fix #4458

Changelog.md

@@ -7,6 +7,7 @@
 * Highlight down arrow at the user menu on hover [#4441](https://github.com/diaspora/diaspora/pull/4441)
 * Make invite code input width consistent across borwsers [#4448](https://github.com/diaspora/diaspora/pull/4448)
 * Fix style of contacts in profile sidebar [#4451](https://github.com/diaspora/pull/4451)
+* Fix profile mobile when logged out [#4464](https://github.com/diaspora/pull/4464)
 
 ## Features
 * Add oEmbed content to the mobile view [#4343](https://github.com/diaspora/diaspora/pull/4353)

app/views/shared/_post_info.mobile.haml

@@ -7,7 +7,7 @@
   = person_link(post.author)
 
   .remove_post
-    - if post.author == current_user.person
+    - if user_signed_in? && post.author == current_user.person
       = link_to(image_tag('deletelabel.png'), post_path(post), :method => :delete, :data => { :confirm => "#{t('are_you_sure')}" }, :class => "remove")
 
   .info

features/mobile/logged_out_browsing.feature

@@ -0,0 +1,15 @@
+@javascript
+Feature: Browsing Diaspora as a logged out user mobile
+    In order to view public diaspora content
+    as a random internet user
+    I want to view public pages
+
+    Background:
+      Given a user named "Bob Jones" with email "bob@bob.bob"
+      And "bob@bob.bob" has a public post with text "public stuff"
+      And I log out
+
+    Scenario: Visiting a profile page
+      When I toggle the mobile view
+      And I am on "bob@bob.bob"'s page
+      Then I should see "public stuff"