41 lines
1.0 KiB
Java
41 lines
1.0 KiB
Java
package tk.draganczuk.url;
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import java.util.Random;
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import java.util.regex.Pattern;
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public class Utils {
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private static final Random random = new Random(System.currentTimeMillis());
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private static final String SHORT_URL_PATTERN = "[a-z0-9-_]+";
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private static final Pattern PATTERN = Pattern.compile(SHORT_URL_PATTERN);
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public static String randomString() {
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int leftLimit = 48; // numeral '0'
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int rightLimit = 122; // letter 'z'
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int targetStringLength = 10;
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return random.ints(leftLimit, rightLimit + 1)
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.filter(i -> (i <= 57 || i >= 97))
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.limit(targetStringLength)
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.collect(StringBuilder::new,
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StringBuilder::appendCodePoint,
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StringBuilder::append)
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.toString();
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}
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public static boolean validate(String shortUrl) {
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return PATTERN.matcher(shortUrl)
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.matches();
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}
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public static boolean isPasswordEnabled(){
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String disablePasswordEnv = System.getenv("INSECURE_DISABLE_PASSWORD");
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if(disablePasswordEnv != null && disablePasswordEnv.equals("I_KNOW_ITS_BAD")){
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return false;
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}
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return true;
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}
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}
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