使用寄存的comunitiesvf 实现验证 验证通过之后才可进入community home 画面

global without sharing class CommunitiesLoginController {

    public Boolean showSection1{get;set;}
    public Boolean showSection2{get;set;}
    public string emailValue {get;set;}
    public string authcodevalue {get;set;}

    global CommunitiesLoginController () {
        showSection1= true;
        showSection2= false;
    }
    
    // mail verify
    public void submitVerifyMail() {
        System.debug('>>>>>>>>>>>>>-------234'+emailValue);
        // email format validate
        if (!validateEmail(emailValue)) {
            ApexPages.Message msg = new ApexPages.Message(ApexPages.Severity.Error, 'this mail is required and also fromat is correct,please re-input!');
            ApexPages.addMessage(msg);
        } else {
            List<AccessUserlist__c> accessUserlist = [SELECT email__c,authCode__c FROM AccessUserlist__c WHERE email__c = :emailValue LIMIT 1];
            System.debug('111accessUserlist'+accessUserlist.size());
            // if email is validate
            if (accessUserlist.size() > 0) {
                // send email.
                String authCode = RandomNumber.generateRandomNumber(8);
                Messaging.SingleEmailMessage mail = new Messaging.SingleEmailMessage();
                mail.setSubject('Vefiry Code');
                mail.setHtmlBody('Vefiry Code is: ' + authCode);
                string[] toaddress = New String[] {emailValue};
                mail.setToAddresses(toaddress);
                mail.setSaveAsActivity( false );
                Messaging.sendEmail(new Messaging.SingleEmailMessage[] { mail });
                // update record
                System.debug('-----startupdate');
                accessUserlist.get(0).authCode__c = authCode;
                System.debug('-----authCode' +authCode);
                update accessUserlist; 
                showSection1= false;
                showSection2= true;
            } else {
        	    ApexPages.Message msg = new ApexPages.Message(ApexPages.Severity.Error, 'this mail is invalidate,please connect with adminuser.');
        	    ApexPages.addMessage(msg);
        }
            
        }
 
    }
    // code verify
    public PageReference submitVerifyAuthcode() {
        System.debug('Start---authCode--'+authcodevalue);
        if (!authcodevalue.isNumeric()) {
            ApexPages.Message msg = new ApexPages.Message(ApexPages.Severity.Error, 'this authcode need input any number,please re-input!');
        	ApexPages.addMessage(msg);
            return null;
        } else {
            List<AccessUserlist__c> accessUserlist = [SELECT email__c,authCode__c FROM AccessUserlist__c WHERE authCode__c = :authcodevalue LIMIT 1];
            System.debug('authCode'+accessUserlist);
            if (accessUserlist.size() > 0) {
                PageReference pageRef = new PageReference('http://www.baidu.com');
                String startUrl = Site.getPathPrefix();
                pageRef = Site.Login('XXX','XXXX',startUrl); -----（暂时用admin user）
                return pageRef;
            } else {
                   ApexPages.Message msg = new ApexPages.Message(ApexPages.Severity.Error, 'this authcode is invalidate,please connect with adminuser.');
                ApexPages.addMessage(msg);
                return null;
            }
        }
    }
    // mail format check 
    public static Boolean validateEmail(String email) {
		Boolean res = true;
		String emailRegex = '^[a-zA-Z0-9._|\\\\%#~`=?&/$^*!}{+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,4}$'; // source: http://www.regular-expressions.info/email.html
		Pattern MyPattern = Pattern.compile(emailRegex);
		Matcher MyMatcher = MyPattern.matcher(email);
		if (!MyMatcher.matches()) 
	    res = false;
		return res;	
	}
}

 <apex:page controller="CommunitiesLoginController">
  <apex:form >	
      <apex:pageBlock id="block">
          <apex:pageMessages id="block"></apex:pageMessages>
          <apex:pageBlockSection title="please input your email： " rendered="{!showSection1}" columns="4">
              <apex:inputText value="{!emailValue}" style="width:260px"/>
         	  <apex:commandButton action="{!submitVerifyMail}" value="Verify" reRender="block" /> 
          </apex:pageBlockSection>
          
                      
          <apex:pageBlockSection title="please input your authCode： " rendered="{!showSection2}" columns="4">
                <apex:inputText value="{!authcodevalue}" style="width:260px"/>
                <apex:commandButton action="{!submitVerifyAuthcode}" value="Submit" reRender="block"/>
          </apex:pageBlockSection>
      </apex:pageBlock>
  </apex:form>
</apex:page>

   pageRef = Site.Login('libtest@00d0o000000r4s7eak.org.force.com','',startUrl);