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Split up into 2 files for better structure

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Emma Nora Theuer 2024-09-07 13:46:20 +02:00
parent 5c08b4e536
commit 7e3b23eb88
2 changed files with 65 additions and 56 deletions
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60
Passgen/src/main/java/Main.java
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@ -1,13 +1,7 @@
import java.security.SecureRandom;
import java.io.IOException;
import java.nio.file.Paths;
import java.nio.file.Files;
import java.util.List;
import picocli.CommandLine;
import picocli.CommandLine.Option;
public class Main implements Runnable {
private static SecureRandom random;
@Option(names = {"-x", "--xkcd"}, description = "Will generate an xkcd-style password (See xkcd 936)")
private boolean xkcd = false;
@ -21,74 +15,28 @@ public class Main implements Runnable {
@Option(names = {"-h", "--help"}, usageHelp = true, description = "Displays this help message and exits.")
private boolean help;
private static String generate_simple_password(int count) {
String simpleCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
String password = "";
int randomIndex;
char randomChar;
for (int i = 0; i < count; i++) {
randomIndex = random.nextInt(simpleCharacters.length());
randomChar = simpleCharacters.charAt(randomIndex);
password = password + randomChar;
}
return password;
}
private static String generate_regular_password(int count) {
String characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!@#$%^&*";
String password = "";
int randomIndex;
char randomChar;
for (int i = 0; i < count; i++) {
randomIndex = random.nextInt(characters.length());
randomChar = characters.charAt(randomIndex);
password = password + randomChar;
}
return password;
}
private static String generate_xkcd_password(int count) {
String password = "";
try {
List<String> dictionary = Files.readAllLines(Paths.get("/usr/share/dict/words"));
int randomIndex;
String randomWord;
for (int i = 0; i < count; i++) {
randomIndex = random.nextInt(dictionary.size());
randomWord = dictionary.get(randomIndex);
password = password + randomWord;
password = password + " ";
}
} catch (IOException e) {
e.printStackTrace();
System.out.println("An error occured while reading /usr/share/dict/words - Is the file present?");
System.exit(2);
}
return password;
}
public static void main(String[] args) {
random = new SecureRandom();
int exitCode = new CommandLine(new Main()).execute(args);
System.exit(exitCode);
}
@Override
public void run() {
final Passgen passgen = new Passgen();
if (xkcd && simple) {
System.out.println("Error: Only use one of xkcd (-x), simple (-s) or regular (-r) at once.");
System.exit(2);
}
if (xkcd) {
System.out.println(generate_xkcd_password(length));
System.out.println(passgen.generate_xkcd_password(length));
System.exit(0);
}
else if (simple) {
System.out.println(generate_simple_password(length));
System.out.println(passgen.generate_simple_password(length));
System.exit(0);
}
else {
System.out.println(generate_regular_password(length));
System.out.println(passgen.generate_regular_password(length));
System.exit(0);
}
}

61
Passgen/src/main/java/Passgen.java Normal file
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@ -0,0 +1,61 @@
import java.security.SecureRandom;
import java.io.IOException;
import java.nio.file.Paths;
import java.nio.file.Files;
import java.util.List;
public class Passgen {
private static SecureRandom random;
public String generate_simple_password(int count) {
random = new SecureRandom();
String simpleCharacters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
String password = "";
int randomIndex;
char randomChar;
for (int i = 0; i < count; i++) {
randomIndex = random.nextInt(simpleCharacters.length());
randomChar = simpleCharacters.charAt(randomIndex);
password = password + randomChar;
}
return password;
}
public String generate_regular_password(int count) {
random = new SecureRandom();
String characters = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890!@#$%^&*";
String password = "";
int randomIndex;
char randomChar;
for (int i = 0; i < count; i++) {
randomIndex = random.nextInt(characters.length());
randomChar = characters.charAt(randomIndex);
password = password + randomChar;
}
return password;
}
public String generate_xkcd_password(int count) {
random = new SecureRandom();
String password = "";
try {
List<String> dictionary = Files.readAllLines(Paths.get("/usr/share/dict/words"));
int randomIndex;
String randomWord;
for (int i = 0; i < count; i++) {
randomIndex = random.nextInt(dictionary.size());
randomWord = dictionary.get(randomIndex);
password = password + randomWord;
password = password + " ";
}
} catch (IOException e) {
e.printStackTrace();
System.out.println("An error occured while reading /usr/share/dict/words - Is the file present?");
System.exit(2);
}
return password;
}
}