Improve Gitlab::Auth method names

Auth.find was a very generic name for a very specific method.
Auth.find_in_gitlab_or_ldap was inaccurate in GitLab EE where it also
looks in Kerberos.

app/controllers/jwt_controller.rb

@@ -42,7 +42,7 @@ class JwtController < ApplicationController
   end
   def authenticate_user(login, password)
-    user = Gitlab::Auth.find_in_gitlab_or_ldap(login, password)
+    user = Gitlab::Auth.find_with_user_password(login, password)
     Gitlab::Auth.rate_limit!(request.ip, success: user.present?, login: login)
     user
   end

app/controllers/projects/git_http_controller.rb

@@ -43,7 +43,7 @@ class Projects::GitHttpController < Projects::ApplicationController
     return if project && project.public? && upload_pack?
     authenticate_or_request_with_http_basic do |login, password|
-      auth_result = Gitlab::Auth.find(login, password, project: project, ip: request.ip)
+      auth_result = Gitlab::Auth.find_for_git_client(login, password, project: project, ip: request.ip)
       if auth_result.type == :ci && upload_pack?
         @ci = true

config/initializers/doorkeeper.rb

@@ -12,7 +12,7 @@ Doorkeeper.configure do
   end
   resource_owner_from_credentials do |routes|
-    Gitlab::Auth.find_in_gitlab_or_ldap(params[:username], params[:password])
+    Gitlab::Auth.find_with_user_password(params[:username], params[:password])
   end
   # If you want to restrict access to the web interface for adding oauth authorized applications, you need to declare the block below.

lib/api/session.rb

@@ -11,7 +11,7 @@ module API
     # Example Request:
     #  POST /session
     post "/session" do
-      user = Gitlab::Auth.find_in_gitlab_or_ldap(params[:email] || params[:login], params[:password])
+      user = Gitlab::Auth.find_with_user_password(params[:email] || params[:login], params[:password])
       return unauthorized! unless user
       present user, with: Entities::UserLogin

lib/gitlab/auth.rb

@@ -3,14 +3,14 @@ module Gitlab
     Result = Struct.new(:user, :type)
     class << self
-      def find(login, password, project:, ip:)
+      def find_for_git_client(login, password, project:, ip:)
         raise "Must provide an IP for rate limiting" if ip.nil?
         result = Result.new
         if valid_ci_request?(login, password, project)
           result.type = :ci
-        elsif result.user = find_in_gitlab_or_ldap(login, password)
+        elsif result.user = find_with_user_password(login, password)
           result.type = :gitlab_or_ldap
         elsif result.user = oauth_access_token_check(login, password)
           result.type = :oauth
@@ -20,7 +20,7 @@ module Gitlab
         result
       end
-      def find_in_gitlab_or_ldap(login, password)
+      def find_with_user_password(login, password)
         user = User.by_login(login)
         # If no user is found, or it's an LDAP server, try LDAP.

lib/gitlab/backend/grack_auth.rb

@@ -95,7 +95,7 @@ module Grack
     end
     def authenticate_user(login, password)
-      user = Gitlab::Auth.find_in_gitlab_or_ldap(login, password)
+      user = Gitlab::Auth.find_with_user_password(login, password)
       unless user
         user = oauth_access_token_check(login, password)

spec/lib/gitlab/auth_spec.rb

@@ -41,7 +41,7 @@ describe Gitlab::Auth, lib: true do
     end
   end
-  describe 'find_in_gitlab_or_ldap' do
+  describe 'find_with_user_password' do
     let!(:user) do
       create(:user,
         username: username,
@@ -52,25 +52,25 @@ describe Gitlab::Auth, lib: true do
     let(:password) { 'my-secret' }
     it "should find user by valid login/password" do
-      expect( gl_auth.find_in_gitlab_or_ldap(username, password) ).to eql user
+      expect( gl_auth.find_with_user_password(username, password) ).to eql user
     end
     it 'should find user by valid email/password with case-insensitive email' do
-      expect(gl_auth.find_in_gitlab_or_ldap(user.email.upcase, password)).to eql user
+      expect(gl_auth.find_with_user_password(user.email.upcase, password)).to eql user
     end
     it 'should find user by valid username/password with case-insensitive username' do
-      expect(gl_auth.find_in_gitlab_or_ldap(username.upcase, password)).to eql user
+      expect(gl_auth.find_with_user_password(username.upcase, password)).to eql user
     end
     it "should not find user with invalid password" do
       password = 'wrong'
-      expect( gl_auth.find_in_gitlab_or_ldap(username, password) ).not_to eql user
+      expect( gl_auth.find_with_user_password(username, password) ).not_to eql user
     end
     it "should not find user with invalid login" do
       user = 'wrong'
-      expect( gl_auth.find_in_gitlab_or_ldap(username, password) ).not_to eql user
+      expect( gl_auth.find_with_user_password(username, password) ).not_to eql user
     end
     context "with ldap enabled" do
@@ -81,13 +81,13 @@ describe Gitlab::Auth, lib: true do
       it "tries to autheticate with db before ldap" do
         expect(Gitlab::LDAP::Authentication).not_to receive(:login)
-        gl_auth.find_in_gitlab_or_ldap(username, password)
+        gl_auth.find_with_user_password(username, password)
       end
       it "uses ldap as fallback to for authentication" do
         expect(Gitlab::LDAP::Authentication).to receive(:login)
-        gl_auth.find_in_gitlab_or_ldap('ldap_user', 'password')
+        gl_auth.find_with_user_password('ldap_user', 'password')
       end
     end
   end

spec/requests/jwt_controller_spec.rb

@@ -44,7 +44,7 @@ describe JwtController do
       let(:user) { create(:user) }
       let(:headers) { { authorization: credentials('user', 'password') } }
-      before { expect(Gitlab::Auth).to receive(:find_in_gitlab_or_ldap).with('user', 'password').and_return(user) }
+      before { expect(Gitlab::Auth).to receive(:find_with_user_password).with('user', 'password').and_return(user) }
       subject! { get '/jwt/auth', parameters, headers }