Merge branch 'feature/ldap-sync-edgecases' into 'master'

app/assets/stylesheets/framework/buttons.scss

@@ -131,6 +131,12 @@
     &:last-child {
       margin-right: 0px;
     }
+    &.btn-xs {
+      margin-right: 3px;
+    }
+  }
+  &.disabled {
+    pointer-events: auto !important;
   }
 }
 

app/controllers/admin/identities_controller.rb

@@ -26,6 +26,7 @@ class Admin::IdentitiesController < Admin::ApplicationController
 
   def update
     if @identity.update_attributes(identity_params)
+      RepairLdapBlockedUserService.new(@user).execute
       redirect_to admin_user_identities_path(@user), notice: 'User identity was successfully updated.'
     else
       render :edit
@@ -34,6 +35,7 @@ class Admin::IdentitiesController < Admin::ApplicationController
 
   def destroy
     if @identity.destroy
+      RepairLdapBlockedUserService.new(@user).execute
       redirect_to admin_user_identities_path(@user), notice: 'User identity was successfully removed.'
     else
       redirect_to admin_user_identities_path(@user), alert: 'Failed to remove user identity.'

app/controllers/admin/users_controller.rb

@@ -40,7 +40,9 @@ class Admin::UsersController < Admin::ApplicationController
   end
 
   def unblock
-    if user.activate
+    if user.ldap_blocked?
+      redirect_back_or_admin_user(alert: "This user cannot be unlocked manually from GitLab")
+    elsif user.activate
       redirect_back_or_admin_user(notice: "Successfully unblocked")
     else
       redirect_back_or_admin_user(alert: "Error occurred. User was not unblocked")

app/models/identity.rb

@@ -18,4 +18,8 @@ class Identity < ActiveRecord::Base
   validates :provider, presence: true
   validates :extern_uid, allow_blank: true, uniqueness: { scope: :provider }
   validates :user_id, uniqueness: { scope: :provider }
+
+  def ldap?
+    provider.starts_with?('ldap')
+  end
 end

app/models/user.rb

@@ -196,10 +196,22 @@ class User < ActiveRecord::Base
   state_machine :state, initial: :active do
     event :block do
       transition active: :blocked
+      transition ldap_blocked: :blocked
+    end
+
+    event :ldap_block do
+      transition active: :ldap_blocked
     end
 
     event :activate do
       transition blocked: :active
+      transition ldap_blocked: :active
+    end
+
+    state :blocked, :ldap_blocked do
+      def blocked?
+        true
+      end
     end
   end
 
@@ -207,7 +219,7 @@ class User < ActiveRecord::Base
 
   # Scopes
   scope :admins, -> { where(admin: true) }
-  scope :blocked, -> { with_state(:blocked) }
+  scope :blocked, -> { with_states(:blocked, :ldap_blocked) }
   scope :active, -> { with_state(:active) }
   scope :not_in_project, ->(project) { project.users.present? ? where("id not in (:ids)", ids: project.users.map(&:id) ) : all }
   scope :without_projects, -> { where('id NOT IN (SELECT DISTINCT(user_id) FROM members)') }

app/services/repair_ldap_blocked_user_service.rb

+class RepairLdapBlockedUserService
+  attr_accessor :user
+
+  def initialize(user)
+    @user = user
+  end
+
+  def execute
+    user.block if ldap_hard_blocked?
+  end
+
+  private
+
+  def ldap_hard_blocked?
+    user.ldap_blocked? && !user.ldap_user?
+  end
+end

app/views/admin/users/index.html.haml

@@ -88,14 +88,19 @@
                 %i.fa.fa-envelope
                 = mail_to user.email, user.email, class: 'light'
                
-              = link_to 'Edit', edit_admin_user_path(user), id: "edit_#{dom_id(user)}", class: "btn btn-xs"
-              - unless user == current_user
-                - if user.blocked?
-                  = link_to 'Unblock', unblock_admin_user_path(user), method: :put, class: "btn btn-xs btn-success"
-                - else
-                  = link_to 'Block', block_admin_user_path(user), data: {confirm: 'USER WILL BE BLOCKED! Are you sure?'}, method: :put, class: "btn btn-xs btn-warning"
-                - if user.access_locked?
-                  = link_to 'Unlock', unlock_admin_user_path(user), method: :put, class: "btn btn-xs btn-success", data: { confirm: 'Are you sure?' }
-                - if user.can_be_removed?
-                  = link_to 'Destroy', [:admin, user], data: { confirm: "USER #{user.name} WILL BE REMOVED! All issues, merge requests and groups linked to this user will also be removed! Maybe block the user instead? Are you sure?" }, method: :delete, class: "btn btn-xs btn-remove"
+              .pull-right
+                = link_to 'Edit', edit_admin_user_path(user), id: "edit_#{dom_id(user)}", class: 'btn-grouped btn btn-xs'
+                - unless user == current_user
+                  - if user.ldap_blocked?
+                    = link_to '#', title: 'Cannot unblock LDAP blocked users', data: {toggle: 'tooltip'}, class: 'btn-grouped btn btn-xs btn-success disabled' do
+                      %i.fa.fa-lock
+                      Unblock
+                  - elsif user.blocked?
+                    = link_to 'Unblock', unblock_admin_user_path(user), method: :put, class: 'btn-grouped btn btn-xs btn-success'
+                  - else
+                    = link_to 'Block', block_admin_user_path(user), data: {confirm: 'USER WILL BE BLOCKED! Are you sure?'}, method: :put, class: 'btn-grouped btn btn-xs btn-warning'
+                  - if user.access_locked?
+                    = link_to 'Unlock', unlock_admin_user_path(user), method: :put, class: 'btn-grouped btn btn-xs btn-success', data: { confirm: 'Are you sure?' }
+                  - if user.can_be_removed?
+                    = link_to 'Destroy', [:admin, user], data: { confirm: "USER #{user.name} WILL BE REMOVED! All issues, merge requests and groups linked to this user will also be removed! Maybe block the user instead? Are you sure?" }, method: :delete, class: 'btn-grouped btn btn-xs btn-remove'
     = paginate @users, theme: "gitlab"

doc/api/users.md

@@ -558,7 +558,8 @@ Parameters:
 
 - `uid` (required) - id of specified user
 
-Will return `200 OK` on success, or `404 User Not Found` is user cannot be found.
+Will return `200 OK` on success, `404 User Not Found` is user cannot be found or 
+`403 Forbidden` when trying to block an already blocked user by LDAP synchronization.
 
 ## Unblock user
 
@@ -572,4 +573,5 @@ Parameters:
 
 - `uid` (required) - id of specified user
 
-Will return `200 OK` on success, or `404 User Not Found` is user cannot be found.
+Will return `200 OK` on success, `404 User Not Found` is user cannot be found or
+`403 Forbidden` when trying to unblock a user blocked by LDAP synchronization.

lib/api/users.rb

@@ -284,10 +284,12 @@ module API
         authenticated_as_admin!
         user = User.find_by(id: params[:id])
 
-        if user
+        if !user
+          not_found!('User')
+        elsif !user.ldap_blocked?
           user.block
         else
-          not_found!('User')
+          forbidden!('LDAP blocked users cannot be modified by the API')
         end
       end
 
@@ -299,10 +301,12 @@ module API
         authenticated_as_admin!
         user = User.find_by(id: params[:id])
 
-        if user
-          user.activate
-        else
+        if !user
           not_found!('User')
+        elsif user.ldap_blocked?
+          forbidden!('LDAP blocked users cannot be unblocked by the API')
+        else
+          user.activate
         end
       end
     end

lib/gitlab/ldap/access.rb

@@ -37,15 +37,15 @@ module Gitlab
 
           # Block user in GitLab if he/she was blocked in AD
           if Gitlab::LDAP::Person.disabled_via_active_directory?(user.ldap_identity.extern_uid, adapter)
-            user.block
+            user.ldap_block
             false
           else
-            user.activate if user.blocked? && !ldap_config.block_auto_created_users
+            user.activate if user.ldap_blocked?
             true
           end
         else
           # Block the user if they no longer exist in LDAP/AD
-          user.block 
+          user.ldap_block
           false
         end
       rescue

spec/controllers/admin/identities_controller_spec.rb

+require 'spec_helper'
+
+describe Admin::IdentitiesController do
+  let(:admin) { create(:admin) }
+  before { sign_in(admin) }
+
+  describe 'UPDATE identity' do
+    let(:user) { create(:omniauth_user, provider: 'ldapmain', extern_uid: 'uid=myuser,ou=people,dc=example,dc=com') }
+
+    it 'repairs ldap blocks' do
+      expect_any_instance_of(RepairLdapBlockedUserService).to receive(:execute)
+
+      put :update, user_id: user.username, id: user.ldap_identity.id, identity: { provider: 'twitter' }
+    end
+  end
+
+  describe 'DELETE identity' do
+    let(:user) { create(:omniauth_user, provider: 'ldapmain', extern_uid: 'uid=myuser,ou=people,dc=example,dc=com') }
+
+    it 'repairs ldap blocks' do
+      expect_any_instance_of(RepairLdapBlockedUserService).to receive(:execute)
+
+      delete :destroy, user_id: user.username, id: user.ldap_identity.id
+    end
+  end
+end

spec/controllers/admin/users_controller_spec.rb

@@ -34,17 +34,34 @@ describe Admin::UsersController do
   end
 
   describe 'PUT unblock/:id' do
-    let(:user) { create(:user) }
-
-    before do
-      user.block
+    context 'ldap blocked users' do
+      let(:user) { create(:omniauth_user, provider: 'ldapmain') }
+
+      before do
+        user.ldap_block
+      end
+
+      it 'will not unblock user' do
+        put :unblock, id: user.username
+        user.reload
+        expect(user.blocked?).to be_truthy
+        expect(flash[:alert]).to eq 'This user cannot be unlocked manually from GitLab'
+      end
     end
 
-    it 'unblocks user' do
-      put :unblock, id: user.username
-      user.reload
-      expect(user.blocked?).to be_falsey
-      expect(flash[:notice]).to eq 'Successfully unblocked'
+    context 'manually blocked users' do
+      let(:user) { create(:user) }
+
+      before do
+        user.block
+      end
+
+      it 'unblocks user' do
+        put :unblock, id: user.username
+        user.reload
+        expect(user.blocked?).to be_falsey
+        expect(flash[:notice]).to eq 'Successfully unblocked'
+      end
     end
   end
 

spec/lib/gitlab/ldap/access_spec.rb

@@ -13,64 +13,58 @@ describe Gitlab::LDAP::Access, lib: true do
       end
 
       it { is_expected.to be_falsey }
-      
+
       it 'should block user in GitLab' do
         access.allowed?
         expect(user).to be_blocked
+        expect(user).to be_ldap_blocked
       end
     end
 
     context 'when the user is found' do
       before do
-        allow(Gitlab::LDAP::Person).
-          to receive(:find_by_dn).and_return(:ldap_user)
+        allow(Gitlab::LDAP::Person).to receive(:find_by_dn).and_return(:ldap_user)
       end
 
       context 'and the user is disabled via active directory' do
         before do
-          allow(Gitlab::LDAP::Person).
-            to receive(:disabled_via_active_directory?).and_return(true)
+          allow(Gitlab::LDAP::Person).to receive(:disabled_via_active_directory?).and_return(true)
         end
 
         it { is_expected.to be_falsey }
 
-        it "should block user in GitLab" do
+        it 'should block user in GitLab' do
           access.allowed?
           expect(user).to be_blocked
+          expect(user).to be_ldap_blocked
         end
       end
 
       context 'and has no disabled flag in active diretory' do
         before do
-          user.block
-
-          allow(Gitlab::LDAP::Person).
-            to receive(:disabled_via_active_directory?).and_return(false)
+          allow(Gitlab::LDAP::Person).to receive(:disabled_via_active_directory?).and_return(false)
         end
 
         it { is_expected.to be_truthy }
 
         context 'when auto-created users are blocked' do
-
           before do
-            allow_any_instance_of(Gitlab::LDAP::Config).
-              to receive(:block_auto_created_users).and_return(true)
+            user.block
           end
 
-          it "does not unblock user in GitLab" do
+          it 'does not unblock user in GitLab' do
             access.allowed?
             expect(user).to be_blocked
+            expect(user).not_to be_ldap_blocked # this block is handled by omniauth not by our internal logic
           end
         end
 
-        context "when auto-created users are not blocked" do
-
+        context 'when auto-created users are not blocked' do
           before do
-            allow_any_instance_of(Gitlab::LDAP::Config).
-              to receive(:block_auto_created_users).and_return(false)
+            user.ldap_block
           end
 
-          it "should unblock user in GitLab" do
+          it 'should unblock user in GitLab' do
             access.allowed?
             expect(user).not_to be_blocked
           end
@@ -80,8 +74,7 @@ describe Gitlab::LDAP::Access, lib: true do
       context 'without ActiveDirectory enabled' do
         before do
           allow(Gitlab::LDAP::Config).to receive(:enabled?).and_return(true)
-          allow_any_instance_of(Gitlab::LDAP::Config).
-            to receive(:active_directory).and_return(false)
+          allow_any_instance_of(Gitlab::LDAP::Config).to receive(:active_directory).and_return(false)
         end
 
         it { is_expected.to be_truthy }

spec/models/identity_spec.rb

+# == Schema Information
+#
+# Table name: identities
+#
+#  id         :integer          not null, primary key
+#  extern_uid :string(255)
+#  provider   :string(255)
+#  user_id    :integer
+#  created_at :datetime
+#  updated_at :datetime
+#
+
+require 'spec_helper'
+
+RSpec.describe Identity, models: true do
+
+  describe 'relations' do
+    it { is_expected.to belong_to(:user) }
+  end
+
+  describe 'fields' do
+    it { is_expected.to respond_to(:provider) }
+    it { is_expected.to respond_to(:extern_uid) }
+  end
+
+  describe '#is_ldap?' do
+    let(:ldap_identity) { create(:identity, provider: 'ldapmain') }
+    let(:other_identity) { create(:identity, provider: 'twitter') }
+
+    it 'returns true if it is a ldap identity' do
+      expect(ldap_identity.ldap?).to be_truthy
+    end
+
+    it 'returns false if it is not a ldap identity' do
+      expect(other_identity.ldap?).to be_falsey
+    end
+  end
+end

spec/models/user_spec.rb

@@ -569,27 +569,39 @@ describe User, models: true do
     end
   end
 
-  describe :ldap_user? do
-    it "is true if provider name starts with ldap" do
-      user = create(:omniauth_user, provider: 'ldapmain')
-      expect( user.ldap_user? ).to be_truthy
-    end
+  context 'ldap synchronized user' do
+    describe :ldap_user? do
+      it 'is true if provider name starts with ldap' do
+        user = create(:omniauth_user, provider: 'ldapmain')
+        expect(user.ldap_user?).to be_truthy
+      end
 
-    it "is false for other providers" do
-      user = create(:omniauth_user, provider: 'other-provider')
-      expect( user.ldap_user? ).to be_falsey
+      it 'is false for other providers' do
+        user = create(:omniauth_user, provider: 'other-provider')
+        expect(user.ldap_user?).to be_falsey
+      end
+
+      it 'is false if no extern_uid is provided' do
+        user = create(:omniauth_user, extern_uid: nil)
+        expect(user.ldap_user?).to be_falsey
+      end
     end
 
-    it "is false if no extern_uid is provided" do
-      user = create(:omniauth_user, extern_uid: nil)
-      expect( user.ldap_user? ).to be_falsey
+    describe :ldap_identity do
+      it 'returns ldap identity' do
+        user = create :omniauth_user
+        expect(user.ldap_identity.provider).not_to be_empty
+      end
     end
-  end
 
-  describe :ldap_identity do
-    it "returns ldap identity" do
-      user = create :omniauth_user
-      expect(user.ldap_identity.provider).not_to be_empty
+    describe '#ldap_block' do
+      let(:user) { create(:omniauth_user, provider: 'ldapmain', name: 'John Smith') }
+
+      it 'blocks user flaging the action caming from ldap' do
+        user.ldap_block
+        expect(user.blocked?).to be_truthy
+        expect(user.ldap_blocked?).to be_truthy
+      end
     end
   end
 

spec/requests/api/users_spec.rb

@@ -8,6 +8,8 @@ describe API::API, api: true  do
   let(:key)   { create(:key, user: user) }
   let(:email)   { create(:email, user: user) }
   let(:omniauth_user) { create(:omniauth_user) }
+  let(:ldap_user) { create(:omniauth_user, provider: 'ldapmain') }
+  let(:ldap_blocked_user) { create(:omniauth_user, provider: 'ldapmain', state: 'ldap_blocked') }
 
   describe "GET /users" do
     context "when unauthenticated" do
@@ -783,6 +785,12 @@ describe API::API, api: true  do
       expect(user.reload.state).to eq('blocked')
     end
 
+    it 'should not re-block ldap blocked users' do
+      put api("/users/#{ldap_blocked_user.id}/block", admin)
+      expect(response.status).to eq(403)
+      expect(ldap_blocked_user.reload.state).to eq('ldap_blocked')
+    end
+
     it 'should not be available for non admin users' do
       put api("/users/#{user.id}/block", user)
       expect(response.status).to eq(403)
@@ -797,7 +805,9 @@ describe API::API, api: true  do
   end
 
   describe 'PUT /user/:id/unblock' do
+    let(:blocked_user)  { create(:user, state: 'blocked') }
     before { admin }
+
     it 'should unblock existing user' do
       put api("/users/#{user.id}/unblock", admin)
       expect(response.status).to eq(200)
@@ -805,12 +815,15 @@ describe API::API, api: true  do
     end
 
     it 'should unblock a blocked user' do
-      put api("/users/#{user.id}/block", admin)
-      expect(response.status).to eq(200)
-      expect(user.reload.state).to eq('blocked')
-      put api("/users/#{user.id}/unblock", admin)
+      put api("/users/#{blocked_user.id}/unblock", admin)
       expect(response.status).to eq(200)
-      expect(user.reload.state).to eq('active')
+      expect(blocked_user.reload.state).to eq('active')
+    end
+
+    it 'should not unblock ldap blocked users' do
+      put api("/users/#{ldap_blocked_user.id}/unblock", admin)
+      expect(response.status).to eq(403)
+      expect(ldap_blocked_user.reload.state).to eq('ldap_blocked')
     end
 
     it 'should not be available for non admin users' do

spec/services/repair_ldap_blocked_user_service_spec.rb

+require 'spec_helper'
+
+describe RepairLdapBlockedUserService, services: true do
+  let(:user) { create(:omniauth_user, provider: 'ldapmain', state: 'ldap_blocked') }
+  let(:identity) { user.ldap_identity }
+  subject(:service) { RepairLdapBlockedUserService.new(user) }
+
+  describe '#execute' do
+    it 'change to normal block after destroying last ldap identity' do
+      identity.destroy
+      service.execute
+
+      expect(user.reload).not_to be_ldap_blocked
+    end
+
+    it 'change to normal block after changing last ldap identity to another provider' do
+      identity.update_attribute(:provider, 'twitter')
+      service.execute
+
+      expect(user.reload).not_to be_ldap_blocked
+    end
+  end
+end