使用easy_captcha產生登入驗證碼 ruby on rails

標籤：

(1)新增gem to Gemfile ,then  bundle install

gem ‘easy_captcha‘, git: ‘https://github.com/phatworx/easy_captcha.git‘gem ‘rmagick‘

(2)after bundle execute

rails g easy_captcha:install

運行完這句話，可以看到app/controllers/application_controller.rb 和 config/routes.rb 的變化

class ApplicationController < ActionController::Base
+ # reset captcha code after each request for security
+ after_filter :reset_last_captcha_code!

 

config/routes.rb 裡多了一句

Cms::Application.routes.draw do
+ captcha_route

(3)修改使用者登入檔案app/controllers/sessions_controller.rb

   def create     if user = CmsUser.authenticate(params[:username], params[:password])       session[:user_id] = user.id-      redirect_to root_path+      if captcha_valid? params[:captcha]+        redirect_to root_path+      else+        flash.now[:error] = "驗證碼錯誤"+        render :new+      end     else       flash.now[:error] = "使用者名稱或密碼錯誤"       render :new

 (4)修改對應的view，app/views/sessions/new.html.erb

             <%= form_tag login_path, method: :post, class: "form-signin" do %>               <input type="text" name="username" class="form-control" placeholder="Email" required autofocus>               <input type="password" name="password" class="form-control" placeholder="Password" required>+              <p>請輸入驗證碼 <%= text_field_tag :captcha %></p>+              <p><%= captcha_tag %></p>               <button class="btn btn-lg btn-primary btn-block" type="submit">登入</button>               <% if flash[:error] %>                 <p class="notice" style="color:red;"><%= flash[:error] %></p>               <% end %>              <% end %>

 

使用easy_captcha產生登入驗證碼 ruby on rails