Merge pull request #698 from ddeyoung/improve-page-create

Leaving off the leading slash in a page name with a subdirectory will corrupt the repository

lib/gollum/app.rb

@@ -222,6 +222,7 @@ module Precious
         # not /docs/Home because write_page will append /docs
         @path = @path.sub(page_dir, '/') if @path.start_with? page_dir
       end
+      @path = clean_path(@path)
 
       page = wikip.page
       if page

lib/gollum/helpers.rb

@@ -25,6 +25,13 @@ module Precious
       [nil,''].include?(param) ? nil : CGI.unescape(param)
     end
 
+    # Ensure path begins with a single leading slash
+    def clean_path(path)
+      if path
+        (path[0] != '/' ? path.insert(0, '/') : path).gsub(/\/{2,}/,'/')
+      end
+    end
+
     # Remove all slashes from the start of string.
     # Remove all double slashes
     def clean_url url

test/test_app.rb

@@ -300,6 +300,25 @@ context "Frontend" do
     assert last_response.ok?
   end
 
+  test "create sets the correct path for a relative path subdirectory" do
+    dir = "foodir"
+    name = "#{dir}/bar"
+    get "/create/#{name}"
+    assert_match(/\/#{dir}/, last_response.body)
+    assert_no_match(/[^\/]#{dir}/, last_response.body)
+  end
+
+  test "create sets the correct path for a relative path subdirectory with the page file directory set" do
+    Precious::App.set(:wiki_options, {:page_file_dir => "foo"})
+    dir = "bardir"
+    name = "#{dir}/baz"
+    get "/create/foo/#{name}"
+    assert_match(/\/#{dir}/, last_response.body)
+    assert_no_match(/[^\/]#{dir}/, last_response.body)
+    # reset page_file_dir
+    Precious::App.set(:wiki_options, {:page_file_dir => nil})
+  end
+
   test "edit returns nil for non-existant page" do
     # post '/edit' fails. post '/edit/' works.
     page = 'not-real-page'

test/test_app_helpers.rb

@@ -9,5 +9,17 @@ context "Precious::Helpers" do
     assert_equal 'Mordor', extract_path('Mordor/Sauron')
     assert_equal 'Mordor/Sauron', extract_path('Mordor/Sauron/Evil')
   end
+
+  test "clean path without leading slash" do
+    assert_equal '/Mordor', clean_path('Mordor')
+  end
+
+  test "clean path with leading slash" do
+    assert_equal '/Mordor', clean_path('/Mordor')
+  end
+
+  test "clean path with double leading slash" do
+    assert_equal '/Mordor', clean_path('//Mordor')
+  end
 end