Added: Random Passwords #48
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,76 @@ | ||
| package com.kinancity.core.generator.password; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collections; | ||
| import java.util.concurrent.ThreadLocalRandom; | ||
| import java.util.stream.Collectors; | ||
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| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import com.kinancity.core.KinanCityCli; | ||
| import com.kinancity.core.generator.PasswordGenerator; | ||
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| /** | ||
| * Random Password generator | ||
| * @author 0815Flo0815 | ||
| * | ||
| */ | ||
| public class RandomPasswordGenerator implements PasswordGenerator { | ||
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| private static final char[][] CHAR_POOL = { | ||
| {'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'}, | ||
| {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'}, | ||
| {'1','2','3','4','5','6','7','8','9','0'}, | ||
| {'#','?','!','@','$','%','%','^','&','>','<','+','`','*','(',')','-',']'} | ||
| }; | ||
| private static final int MIN_LENGTH = 8; | ||
| private static final int MAX_LENGTH = 50; | ||
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| private static Logger LOGGER = LoggerFactory.getLogger(KinanCityCli.class); | ||
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There was a problem hiding this comment. On other classes I currently use instance loggers : |
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| private int length; | ||
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| public RandomPasswordGenerator(Integer length) { | ||
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There was a problem hiding this comment. There is no need to take an Integer as paramter, primitive int would be better to avoid null checks |
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| super(); | ||
| if (length == null) { | ||
| LOGGER.warn("Password length must be a number! Using a random length!"); | ||
| this.length = -1; | ||
| } | ||
| else if (length < 0) { | ||
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There was a problem hiding this comment. style : |
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| this.length = -1; | ||
| } | ||
| else if (length < MIN_LENGTH) { | ||
| LOGGER.warn("The minimum password length is " + MIN_LENGTH + "! Using " + MIN_LENGTH + "!"); | ||
| this.length = MIN_LENGTH; | ||
| } | ||
| else if (length > MAX_LENGTH) { | ||
| LOGGER.warn("The maximum password length is " + MAX_LENGTH + "! Using " + MAX_LENGTH + "!"); | ||
| this.length = MAX_LENGTH; | ||
| } | ||
| else { | ||
| this.length = length; | ||
| } | ||
| } | ||
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| @Override | ||
| public String generatePassword() { | ||
| int length; | ||
| if (this.length == -1) { | ||
| length = ThreadLocalRandom.current().nextInt(MIN_LENGTH, MAX_LENGTH + 1); | ||
| } | ||
| else { | ||
| length = this.length; | ||
| } | ||
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| ArrayList<Character> passwordPool = new ArrayList<Character>(); | ||
| for (int i = 0; i < length; i++) { | ||
| char[] currentPool = CHAR_POOL[i % CHAR_POOL.length]; | ||
| int randomIndexPool = ThreadLocalRandom.current().nextInt(currentPool.length); | ||
| int randomIndexPosition = ThreadLocalRandom.current().nextInt(passwordPool.size() + 1); | ||
| passwordPool.add(randomIndexPosition, currentPool[randomIndexPool]); | ||
| } | ||
| Collections.shuffle(passwordPool); | ||
| return String.valueOf(passwordPool.stream().map(e->e.toString()).collect(Collectors.joining())); | ||
| } | ||
| } | ||
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Options key should not overlap each other one should not start like the other.
"p" is contained in "pl"