Fix: services and controllers argument type discordance. Add: totally revamped request system, easier to manager than older pre-user based one. Remove: old views no longer necessary to have.

backlib/src/main/java/net/miarma/backlib/dto/CreateUserDto.java

@@ -0,0 +1,6 @@
+package net.miarma.backlib.dto;
+
+public record CreateUserDto(String displayName,
+                            String avatar) {
+
+}

backlib/src/main/java/net/miarma/backlib/security/PasswordGenerator.java

@@ -0,0 +1,45 @@
+package net.miarma.backlib.security;
+
+import java.security.SecureRandom;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class PasswordGenerator {
+
+    private static final String UPPER = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+    private static final String LOWER = "abcdefghijklmnopqrstuvwxyz";
+    private static final String DIGITS = "0123456789";
+    private static final String SYMBOLS = "!@#$%^&*"; // compatibles con bcrypt
+    private static final String ALL = UPPER + LOWER + DIGITS + SYMBOLS;
+
+    private static final SecureRandom random = new SecureRandom();
+
+    public static String generate(int length) {
+        if (length < 8) length = 8;
+
+        List<Character> password = new ArrayList<>();
+
+        password.add(getRandChar(UPPER));
+        password.add(getRandChar(LOWER));
+        password.add(getRandChar(DIGITS));
+        password.add(getRandChar(SYMBOLS));
+
+        while (password.size() < length) {
+            password.add(getRandChar(ALL));
+        }
+
+        Collections.shuffle(password, random);
+
+        StringBuilder sb = new StringBuilder();
+        for (char c : password) {
+            sb.append(c);
+        }
+
+        return sb.toString();
+    }
+
+    private static char getRandChar(String chars) {
+        return chars.charAt(random.nextInt(chars.length()));
+    }
+}