com.springsource.greenhouse.reset.ResetPasswordController.java Source code

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Here is the source code for com.springsource.greenhouse.reset.ResetPasswordController.java

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/*
 * Copyright 2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.springsource.greenhouse.reset;

import javax.inject.Inject;
import javax.validation.Valid;

import org.springframework.model.FieldModel;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import com.springsource.greenhouse.account.SignInNotFoundException;
import com.springsource.greenhouse.utils.Message;

/**
 * UI Controller for resetting user passwords.
 * This Controller may be accessed by the general public and does not require signin.
 * However, it should be accessed over SSL since it accepts secure user credentials.
 * @author Keith Donald
 */
@Controller
public class ResetPasswordController {

    private final ResetPasswordService service;

    @Inject
    public ResetPasswordController(ResetPasswordService service) {
        this.service = service;
    }

    /**
     * Render the reset password form to the person as HTML in their web browser.
     */
    @RequestMapping(value = "/reset", method = RequestMethod.GET)
    public void resetPage(Model model) {
        model.addAttribute("username", new FieldModel<String>());
    }

    /**
     * Process a request by a person to reset a member password.
     * Calls the {@link ResetPasswordService} to send a reset password mail.
     * The mail message will contain a request token that must be presented to continue the password reset operation. 
     */
    @RequestMapping(value = "/reset", method = RequestMethod.POST)
    public String sendResetMail(@RequestParam String signin, Model model, RedirectAttributes redirectAttrs) {
        try {
            service.sendResetMail(signin);
            redirectAttrs.addFlashAttribute(Message
                    .info("An email has been sent to you.  Follow its instructions to reset your password."));
            return "redirect:/reset";
        } catch (SignInNotFoundException e) {
            model.addAttribute("signin", FieldModel.error("not on file", signin));
            return null;
        }
    }

    /**
     * Render a change password form to the user once the reset token is validated.
     */
    @RequestMapping(value = "/reset", method = RequestMethod.GET, params = "token")
    public String changePasswordForm(@RequestParam String token, Model model) {
        if (!service.isValidResetToken(token)) {
            return "reset/invalidToken";
        }
        model.addAttribute(new ChangePasswordForm());
        return "reset/changePassword";
    }

    /**
     * Process the change password submission and reset the user's password.
     */
    @RequestMapping(value = "/reset", method = RequestMethod.POST, params = "token")
    public String changePassword(@RequestParam String token, @Valid ChangePasswordForm form,
            BindingResult formBinding, Model model, RedirectAttributes redirectAttrs) {
        if (formBinding.hasErrors()) {
            model.addAttribute("token", token);
            return "reset/changePassword";
        }
        try {
            service.changePassword(token, form.getPassword());
            redirectAttrs.addFlashAttribute("Your password has been reset");
            return "redirect:/reset";
        } catch (InvalidResetTokenException e) {
            redirectAttrs.addFlashAttribute(
                    Message.error("Your reset password session has expired.  Please try again."));
            return "redirect:/reset";
        }
    }

}