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package com.lxm.tools;import java.util.regex.Matcher;import java.util.regex.Pattern;public class CheckPWD {	public static Safelevel checkPasswordStrength(String c) {		Safelevel d = Safelevel.WEAK;		if (isEmptyPassword(c)) {			return d;		}		if (isTooShort(c)) {			d = Safelevel.WEAK;		} else {			if (hasNum(c) && hasLetter(c) && hasSymbol(c)) {				d = Safelevel.SECURE;			} else {				if (hasNum(c) && hasLetter(c)) {					d = Safelevel.STRONG;				} else {					if (hasNum(c) && hasSymbol(c)) {						d = Safelevel.STRONG;					} else {						if (hasSymbol(c) && hasLetter(c)) {							d = Safelevel.STRONG;						} else {							if (isAllNum(c) || isAllLetter(c) || isAllSymbol(c)) {								d = Safelevel.WEAK;							}						}					}				}			}		}		return d;	}	public enum Safelevel {		WEAK, /* 弱 */		STRONG, /* 强 */		SECURE, /* 安全 */	}	public static boolean hasNum(String content) {		boolean flag = false;		Pattern p = Pattern.compile(".*\\d+.*");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean hasSymbol(String content) {		boolean flag = false;		Pattern p = Pattern.compile(".*[a-zA-Z0-9\\s<>;'\\\\]+.*");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean isAllSymbol(String content) {		boolean flag = false;		Pattern p = Pattern.compile("^[a-zA-Z0-9\\s<>;'\\\\]+$");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean hasSpace(String content) {		boolean flag = false;		Pattern p = Pattern.compile(".*\\s+.*");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean hasIllegalSymbol(String content) {		boolean flag = false;		Pattern p = Pattern.compile(".*[\\s<>;'\\\\].*");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean hasLetter(String content) {		boolean flag = false;		Pattern p = Pattern.compile(".*[a-zA-Z]+.*");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean isAllLetter(String content) {		boolean flag = false;		Pattern p = Pattern.compile("^[a-zA-Z]+$");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	private static boolean isEmptyPassword(String b) {		return (b == null || b.length() == 0);	}	private static boolean isTooShort(String b) {		return b.length() < 6;	}	public static boolean isAllNum(String content) {		boolean flag = false;		Pattern p = Pattern.compile("^\\d+$");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean hasRepeat6Chars(String content) {		boolean flag = false;		Pattern p = Pattern.compile(".*([0-9a-zA-Z])\\1{5}.*");		Matcher m = p.matcher(content);		if (m.matches())			flag = true;		return flag;	}	public static boolean hasIncrease6Chars(String g) {		if (g == null || g.length() < 6) {			return false;		}		char h = g.charAt(0);		char i = 1;		char j = 1;		for (j = 1; j < g.length(); j++) {			char f = g.charAt(j);			if (f == h + 1) {				i++;				if (i >= 6) {					return true;				}			} else {				i = 1;			}			h = f;		}		return false;	}	public static boolean hasDecrease6Chars(String g) {		if (g == null || g.length() < 6) {			return false;		}		char h = g.charAt(0);		char i = 1;		char j = 1;		for (j = 1; j < g.length(); j++) {			char f = g.charAt(j);			if (f == h - 1) {				i++;				if (i >= 6) {					return true;				}			} else {				i = 1;			}			h = f;		}		return false;	}	public static boolean hasAllIncreaseChars(String g) {		if (g == null) {			return false;		}		int i = g.length();		char h = g.charAt(0);		char j = 1;		char k = 1;		for (k = 1; k < g.length(); k++) {			char l = g.charAt(k);			if (l == h + 1) {				j++;				if (j >= i) {					return true;				}			} else {				j = 1;			}			h = l;		}		return false;	}	public static boolean hasAllDecreaseChars(String g) {		if (g == null) {			return false;		}		int i = g.length();		char h = g.charAt(0);		char j = 1;		char k = 1;		for (k = 1; k < i; k++) {			char l = g.charAt(k);			if (l == h - 1) {				j++;				if (j >= i) {					return true;				}			} else {				j = 1;			}			h = l;		}		return false;	}	public static boolean isAllSameChars(String content) {		if (content == null || content.length() < 2) {			return false;		}		char h = content.charAt(0);		char e = 1;		for (e = 1; e < content.length(); e++) {			char f = content.charAt(e);			if (f != h) {				return false;			}		}		return true;	}}

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