checkuserinfo.java

手机控制邮件以及附件的发送

package remote;

import java.io.File;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

public class CheckUserInfo{

	private String CurrentUser;
	private String host;
	private String addr;
	private String user;
	private String psw;

	private String userInfoFile = "user.xml";

	public CheckUserInfo(){
	}
	public CheckUserInfo(String n){
		CurrentUser = n;
	}

	public boolean checkUser(String n, String p)
	{
		String decrypted;
		try {
		File file = new File(userInfoFile);
		DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
		DocumentBuilder db = dbf.newDocumentBuilder();
		Document doc = db.parse(file);
		
		doc.getDocumentElement().normalize();
		System.out.println("Root element " + doc.getDocumentElement().getNodeName());


		NodeList userList = doc.getElementsByTagName("user");
		int userCount = userList.getLength();

		for (int s = 0; s < userCount; s++) {

			Node firstUserNode = userList.item(s);
	    		if (firstUserNode.getNodeType() == Node.ELEMENT_NODE) {

				Element firstUserElement = (Element) firstUserNode;

				NodeList NameList = firstUserElement.getElementsByTagName("name");
				Element NameElement = (Element) NameList.item(0);
				NodeList Name = NameElement.getChildNodes();
				String name = ((Node) Name.item(0)).getNodeValue();
				System.out.println("Name : "  + name);

				NodeList PasswordList = firstUserElement.getElementsByTagName("password");
				Element PasswordElement = (Element) PasswordList.item(0);
				NodeList Password = PasswordElement.getChildNodes();
				String password = ((Node) Password.item(0)).getNodeValue();
				System.out.println("Password: " + password);
				decrypted = Encoder.decrypting(password);
				

				if (n.equals(name) && p.equals(decrypted)){
					System.out.println("Get Correct User");
					CurrentUser = n;
					return true;
				}
			}
		}
		} catch (Exception e) {
		    e.printStackTrace();
		}
		return false;
	}	
	public void getEmailDetails(){
		String encryptedPsw;

		try {

		System.out.println("Getting Email Information from xml");
		File file = new File(userInfoFile);
		DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
		DocumentBuilder db = dbf.newDocumentBuilder();
		Document doc = db.parse(file);
		doc.getDocumentElement().normalize();		
		NodeList nodeLst = doc.getElementsByTagName("user");
			
		for (int s = 0; s < nodeLst.getLength(); s++) {

			Node fstNode = nodeLst.item(s);
	    		if (fstNode.getNodeType() == Node.ELEMENT_NODE) {
				Element fstElmnt = (Element) fstNode;

				NodeList fstNmElmntLst = fstElmnt.getElementsByTagName("name");
				Element fstNmElmnt = (Element) fstNmElmntLst.item(0);
				NodeList fstNm = fstNmElmnt.getChildNodes();
				String name = ((Node) fstNm.item(0)).getNodeValue();

				if (CurrentUser.equals(name)){
					NodeList newNmElmntLst = fstElmnt.getElementsByTagName("email");

					for (int k = 0; k < newNmElmntLst.getLength(); k++){
						Node emailNode = newNmElmntLst.item(k);
						if (emailNode.getNodeType() == Node.ELEMENT_NODE){
							Element emailElmnt = (Element) emailNode;

							NodeList EmailElmntLst1 = emailElmnt.getElementsByTagName("host");
							Element EmailElmnt1 = (Element) EmailElmntLst1.item(0);
							NodeList Email1 = EmailElmnt1.getChildNodes();
							host = ((Node) Email1.item(0)).getNodeValue();

							NodeList EmailElmntLst2 = emailElmnt.getElementsByTagName("addr");
							Element EmailElmnt2 = (Element) EmailElmntLst2.item(0);
							NodeList Email2 = EmailElmnt2.getChildNodes();
							addr = ((Node) Email2.item(0)).getNodeValue();

							NodeList EmailElmntLst3 = emailElmnt.getElementsByTagName("login");
							Element EmailElmnt3 = (Element) EmailElmntLst3.item(0);
							NodeList Email3 = EmailElmnt3.getChildNodes();
							user = ((Node) Email3.item(0)).getNodeValue();


							NodeList EmailElmntLst4 = emailElmnt.getElementsByTagName("psw");
							Element EmailElmnt4 = (Element) EmailElmntLst4.item(0);
							NodeList Email4 = EmailElmnt4.getChildNodes();
							encryptedPsw = ((Node) Email4.item(0)).getNodeValue();
							psw = Encoder.decrypting(encryptedPsw);
							return;
						}
					}
				}
			}
		}	
		} catch (Exception e) {
		    e.printStackTrace();
		}
	}

	public String getEmailHost(){
		return host;
	}
	public String getEmailAddr(){
		return addr;
	}
	public String getEmailUser(){
		return user;
	}
	public String getEmailPsw(){
		return psw;
	}

}