diff --git a/README.md b/README.md
index 47023643..2b981308 100644
--- a/README.md
+++ b/README.md
@@ -497,6 +497,8 @@ like Rack::Auth, OmniAuth, etc.
     Precious::App.set(:wiki_options, {:universal_toc => false})
     run Precious::App
 
+Your Rack middleware can pass author details to Gollum in a Hash in the session under the 'gollum.author' key.
+
 ## WINDOWS FILENAME VALIDATION
 Note that filenames on windows must not contain any of the following characters `\ / : * ? " < > |`. See [this support article](http://support.microsoft.com/kb/177506) for details.
 
diff --git a/lib/gollum/frontend/app.rb b/lib/gollum/frontend/app.rb
index 05468abe..fee66f0f 100644
--- a/lib/gollum/frontend/app.rb
+++ b/lib/gollum/frontend/app.rb
@@ -369,8 +369,19 @@ module Precious
       wiki.update_page(page, name, format, content.to_s, commit)
     end
 
+    private
+
+    # Options parameter to Gollum::Committer#initialize
+    #     :message   - The String commit message.
+    #     :name      - The String author full name.
+    #     :email     - The String email address.
+    # message is sourced from the incoming request parameters
+    # author details are sourced from the session, to be populated by rack middleware ahead of us
     def commit_message
-      { :message => params[:message] }
+      commit_message = { :message => params[:message] }
+      author_parameters = session['gollum.author']
+      commit_message.merge! author_parameters unless author_parameters.nil?
+      commit_message
     end
   end
 end
diff --git a/test/test_app.rb b/test/test_app.rb
index 52983290..5da184dc 100644
--- a/test/test_app.rb
+++ b/test/test_app.rb
@@ -274,6 +274,24 @@ context "Frontend" do
     get "/"
     assert_match "http://example.org/wiki/Home", last_response.headers['Location']
   end
+  
+  test "author details in session are used" do
+    page1 = @wiki.page('A')
+    
+    gollum_author = { :name => 'ghi', :email => 'jkl' }
+    session = { 'gollum.author' => gollum_author }
+    
+    post "/edit/A", { :content => 'abc', :page => 'A', :format => page1.format, :message => 'def' }, { 'rack.session' => session }
+    follow_redirect!
+    assert last_response.ok?
+    
+    @wiki.clear_cache
+    page2 = @wiki.page(page1.name)
+    
+    author = page2.version.author
+    assert_equal 'ghi', author.name
+    assert_equal 'jkl', author.email
+  end
 
   def app
     Precious::App