re-integrate repository_authentication plugin

app/controllers/sys_controller.rb

@@ -29,6 +29,7 @@
 
 class SysController < ActionController::Base
   before_filter :check_enabled
+  before_filter :require_basic_auth, :only => [ :repo_auth ]
 
   def projects
     p = Project.active.has_module(:repository).find(:all, :include => :repository, :order => 'identifier')
@@ -70,6 +71,19 @@ class SysController < ActionController::Base
     render :nothing => true, :status => 404
   end
 
+  def repo_auth
+    @project = Project.find_by_identifier(params[:repository])
+
+    if ( %w(GET PROPFIND REPORT OPTIONS).include?(params[:method]) &&
+        @authenticated_user.allowed_to?(:browse_repository, @project) ) ||
+        @authenticated_user.allowed_to?(:commit_access, @project)
+      render :text => "Access granted"
+      return
+    end
+
+    render :text => "Not allowed", :status => 403 # default to deny
+  end
+
   protected
 
   def check_enabled
@@ -79,4 +93,37 @@ class SysController < ActionController::Base
       return false
     end
   end
+
+  private
+
+  def require_basic_auth
+    authenticate_with_http_basic do |username, password|
+      @authenticated_user = cached_user_login(username, password)
+      return true if @authenticated_user
+    end
+
+    response.headers["WWW-Authenticate"] = 'Basic realm="Repository Authentication"'
+    render :text => "Authorization required", :status => 401
+    false
+  end
+
+  def user_login(username, password)
+    User.try_to_login(username, password)
+  end
+
+  def cached_user_login(username, password)
+    unless Setting.repository_authentication_caching_enabled?
+      return user_login(username, password)
+    end
+    user = nil
+    user_id = Rails.cache.fetch(OpenProject::RepositoryAuthentication::CACHE_PREFIX + Digest::SHA1.hexdigest("#{username}#{password}"),
+                                :expires_in => OpenProject::RepositoryAuthentication::CACHE_EXPIRES_AFTER) do
+      user = user_login(username, password)
+      user ? user.id.to_s : '-1'
+    end
+
+    return nil if user_id.blank? or user_id == '-1'
+
+    user || User.find_by_id(user_id.to_i)
+  end
 end

app/views/settings/_repositories.html.erb

@@ -48,6 +48,8 @@ See doc/COPYRIGHT.rdoc for more details.
 <em><%= l(:text_comma_separated) %></em></p>
 
 <p><%= setting_text_field :repository_log_display_limit, :size => 6 %></p>
+
+<p><%= setting_check_box :repository_authentication_caching_enabled %></p>
 </div>
 
 <fieldset class="box tabular settings"><legend><%= l(:text_work_packages_ref_in_commit_messages) %></legend>

config/locales/de.yml

@@ -1307,6 +1307,7 @@ de:
   setting_plain_text_mail: "Nur reinen Text (kein HTML) senden"
   setting_protocol: "Protokoll"
   setting_repositories_encodings: "Kodierungen der Projektarchive"
+  setting_repository_authentication_caching_enabled: "Aktiviere Cache für Authentifizierungsversuche von Versionskontrollsoftware"
   setting_repository_log_display_limit: "Maximale Anzahl anzuzeigender Revisionen in der Historie einer Datei"
   setting_rest_api_enabled: "REST-Schnittstelle aktivieren"
   setting_self_registration: "Anmeldung ermöglicht"

config/locales/en.yml

@@ -1295,6 +1295,7 @@ en:
   setting_plain_text_mail: "Plain text mail (no HTML)"
   setting_protocol: "Protocol"
   setting_repositories_encodings: "Repositories encodings"
+  setting_repository_authentication_caching_enabled: "Enable caching for authentication request of version control software"
   setting_repository_log_display_limit: "Maximum number of revisions displayed on file log"
   setting_rest_api_enabled: "Enable REST web service"
   setting_self_registration: "Self-registration"

config/settings.yml

@@ -133,6 +133,8 @@ sys_api_enabled:
   default: 0
 sys_api_key:
   default: ''
+repository_authentication_caching_enabled:
+  default: true
 commit_ref_keywords:
   default: 'refs,references,IssueID'
 commit_fix_keywords:

lib/open_project/repository_authentication.rb

@@ -0,0 +1,35 @@
+#-- encoding: UTF-8
+#-- copyright
+# OpenProject is a project management system.
+# Copyright (C) 2012-2014 the OpenProject Foundation (OPF)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See doc/COPYRIGHT.rdoc for more details.
+#++
+
+module OpenProject
+  module RepositoryAuthentication
+    CACHE_PREFIX = "openproject/repository_authentication/login_"
+    CACHE_EXPIRES_AFTER = 10.minutes
+  end
+end

spec/controllers/sys_controller_spec.rb

@@ -0,0 +1,228 @@
+require 'spec_helper'
+
+module OpenProjectRepositoryAuthenticationSpecs
+  describe SysController do
+    let(:commit_role) { FactoryGirl.create(:role, :permissions => [:commit_access,
+                                                                  :browse_repository]) }
+    let(:browse_role) { FactoryGirl.create(:role, :permissions => [:browse_repository]) }
+    let(:guest_role) { FactoryGirl.create(:role, :permissions => []) }
+    let(:valid_user_password) { "Top Secret Password" }
+    let(:valid_user) { FactoryGirl.create(:user, :login => "johndoe",
+                                                 :password => valid_user_password,
+                                                 :password_confirmation => valid_user_password)}
+
+    before(:each) do
+      FactoryGirl.create(:non_member, :permissions => [:browse_repository])
+      DeletedUser.first # creating it first in order to avoid problems with should_receive
+
+      random_project = FactoryGirl.create(:project, :is_public => false)
+      @member = FactoryGirl.create(:member, :user => valid_user,
+                                            :roles => [browse_role],
+                                            :project => random_project)
+      Setting.stub(:sys_api_key).and_return("12345678")
+      Setting.stub(:sys_api_enabled?).and_return(true)
+    end
+
+    describe :repo_auth, "for valid login, but no access to repo_auth" do
+      before(:each) do
+        @key = Setting.sys_api_key
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials(valid_user.login, valid_user_password)
+        post "repo_auth", { :key => @key, :repository => "without-access", :method => "GET" }
+      end
+
+      it "should respond 403 not allowed" do
+        response.code.should == "403"
+        response.body.should == "Not allowed"
+      end
+    end
+
+    describe :repo_auth, "for valid login and user has browse repository permission (role reporter) for project" do
+      before(:each) do
+        @key = Setting.sys_api_key
+        @project = FactoryGirl.create(:project, :is_public => false)
+        @member = FactoryGirl.create(:member, :user => valid_user,
+                                              :roles => [browse_role],
+                                              :project => @project)
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials(valid_user.login, valid_user_password)
+      end
+
+      it "should respond 200 okay dokay for GET" do
+        post "repo_auth", { :key => @key, :repository => @project.identifier, :method => "GET" }
+        response.code.should == "200"
+      end
+
+      it "should respond 403 not allowed for POST" do
+        post "repo_auth", { :key => @key, :repository => @project.identifier, :method => "POST" }
+        response.code.should == "403"
+      end
+    end
+
+    describe :repo_auth, "for valid login and user has commit access permission (role developer) for project" do
+      before(:each) do
+        @key = Setting.sys_api_key
+        @project = FactoryGirl.create(:project, :is_public => false)
+        @member = FactoryGirl.create(:member, :user => valid_user,
+                                              :roles => [commit_role],
+                                              :project => @project )
+        valid_user.save
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials(valid_user.login, valid_user_password)
+      end
+
+      it "should respond 200 okay dokay for GET" do
+        post "repo_auth", { :key => @key, :repository => @project.identifier, :method => "GET" }
+        response.code.should == "200"
+      end
+
+      it "should respond 200 okay dokay for POST" do
+        post "repo_auth", { :key => @key, :repository => @project.identifier, :method => "POST" }
+        response.code.should == "200"
+      end
+    end
+
+    describe :repo_auth, "for invalid login and user has role manager for project" do
+      before(:each) do
+        @key = Setting.sys_api_key
+        @project = FactoryGirl.create(:project, :is_public => false )
+        @member = FactoryGirl.create(:member, :user => valid_user,
+                                              :roles => [commit_role],
+                                              :project => @project)
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials(valid_user.login, valid_user_password + "made invalid")
+        post "repo_auth", { :key => @key, :repository => @project.identifier, :method => "GET" }
+      end
+
+      it "should respond 401 auth required" do
+        response.code.should == "401"
+      end
+    end
+
+    describe :repo_auth, "for valid login and user is not member for project" do
+      before(:each) do
+        @key = Setting.sys_api_key
+        @project = FactoryGirl.create(:project, :is_public => false)
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials(valid_user.login, valid_user_password)
+        post "repo_auth", { :key => @key, :repository => @project.identifier, :method => "GET" }
+      end
+
+      it "should respond 403 not allowed" do
+        response.code.should == "403"
+      end
+    end
+
+    describe :repo_auth, "for valid login and project is public" do
+      before(:each) do
+        @key = Setting.sys_api_key
+        @project = FactoryGirl.create(:project, :is_public => true)
+
+        random_project = FactoryGirl.create(:project, :is_public => false)
+        @member = FactoryGirl.create(:member, :user => valid_user,
+                                              :roles => [browse_role],
+                                              :project => random_project)
+
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials(valid_user.login, valid_user_password)
+        post "repo_auth", { :key => @key, :repository => @project.identifier, :method => "GET" }
+      end
+
+      it "should respond 200 OK" do
+        response.code.should == "200"
+      end
+    end
+
+    describe :repo_auth, "for invalid credentials" do
+      before(:each) do
+        @key = Setting.sys_api_key
+        post "repo_auth", { :key => @key, :repository => "any-repo", :method => "GET" }
+      end
+
+      it "should respond 401 auth required" do
+        response.code.should == "401"
+        response.body.should == "Authorization required"
+      end
+    end
+
+    describe :repo_auth, "for invalid api key" do
+      before(:each) do
+        @key = "invalid"
+      end
+
+      it "should respond 403 for valid username/password" do
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials(valid_user.login, valid_user_password)
+        post "repo_auth", { :key => @key, :repository => "any-repo", :method => "GET" }
+        response.code.should == "403"
+        response.body.should == "Access denied. Repository management WS is disabled or key is invalid."
+      end
+
+      it "should respond 403 for invalid username/password" do
+        request.env['HTTP_AUTHORIZATION'] = ActionController::HttpAuthentication::Basic.encode_credentials("invalid", "invalid")
+        post "repo_auth", { :key => @key, :repository => "any-repo", :method => "GET" }
+        response.code.should == "403"
+        response.body.should == "Access denied. Repository management WS is disabled or key is invalid."
+      end
+    end
+
+    before(:each) do
+      Rails.cache.clear
+      Rails.cache.stub(:kind_of?).with(anything).and_return(false)
+    end
+
+    describe :cached_user_login do
+      let(:cache_key) { OpenProject::RepositoryAuthentication::CACHE_PREFIX +
+                        Digest::SHA1.hexdigest("#{valid_user.login}#{valid_user_password}") }
+      let(:cache_expiry) { OpenProject::RepositoryAuthentication::CACHE_EXPIRES_AFTER }
+
+      it "should call user_login only once when called twice" do
+        controller.should_receive(:user_login).once.and_return(valid_user)
+        2.times { controller.send(:cached_user_login, valid_user.login, valid_user_password) }
+      end
+
+      it "should return the same as user_login for valid creds" do
+        controller.send(:cached_user_login, valid_user.login, valid_user_password).should ==
+        controller.send(:user_login, valid_user.login, valid_user_password)
+      end
+
+      it "should return the same as user_login for invalid creds" do
+        controller.send(:cached_user_login, "invalid", "invalid").should ==
+          controller.send(:user_login, "invalid", "invalid")
+      end
+
+      it "should use cache" do
+        # allow the cache to return something reasonable for
+        # other requests, while ensuring that it is not queried
+        # with the cache key in question
+
+        # unfortunately, and_call_original currently fails
+        Rails.cache.stub(:fetch) do |*args|
+          args.first.should_not == cache_key
+
+          name = args.first.split("/").last
+          Marshal.dump(Setting.send(:find_or_default, name).value)
+        end
+        #Rails.cache.should_receive(:fetch).with(anything).and_call_original
+        Rails.cache.should_receive(:fetch).with(cache_key, :expires_in => cache_expiry) \
+                                          .and_return(Marshal.dump(valid_user.id.to_s))
+        controller.send(:cached_user_login, valid_user.login, valid_user_password)
+      end
+
+      describe "with caching disabled" do
+        before do
+          Setting.stub(:repository_authentication_caching_enabled?).and_return false
+        end
+
+        it 'should not use a cache' do
+          # allow the cache to return something reasonable for
+          # other requests, while ensuring that it is not queried
+          # with the cache key in question
+          #
+          # unfortunately, and_call_original currently fails
+          Rails.cache.stub(:fetch) do |*args|
+            args.first.should_not == cache_key
+
+            name = args.first.split("/").last
+            Marshal.dump(Setting.send(:find_or_default, name).value)
+          end
+
+          controller.send(:cached_user_login, valid_user.login, valid_user_password)
+        end
+      end
+    end
+  end
+end