src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/validators/HsHostingAssetEntityValidator.java

@@ -47,7 +47,7 @@ public abstract class HsHostingAssetEntityValidator extends HsEntityValidator<Hs
     @Override
     public List<String> validate(final HsHostingAssetEntity assetEntity) {
         return sequentiallyValidate(
-                () -> validateEntityReferences(assetEntity),
+                () -> validateEntityReferencesAndProperties(assetEntity),
                 () -> validateIdentifierPattern(assetEntity), // might need proper parentAsset or billingItem
                 () -> optionallyValidate(assetEntity.getBookingItem()),
                 () -> optionallyValidate(assetEntity.getParentAsset()),
@@ -55,7 +55,7 @@ public abstract class HsHostingAssetEntityValidator extends HsEntityValidator<Hs
         );
     }
 
-    private List<String> validateEntityReferences(final HsHostingAssetEntity assetEntity) {
+    private List<String> validateEntityReferencesAndProperties(final HsHostingAssetEntity assetEntity) {
         return Stream.of(
                     validateReferencedEntity(assetEntity, "bookingItem", bookingItemValidation::validate),
                     validateReferencedEntity(assetEntity, "parentAsset", parentAssetValidation::validate),

src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/validators/HsUnixUserHostingAssetValidator.java

@@ -5,14 +5,28 @@ import net.hostsharing.hsadminng.hs.hosting.asset.HsHostingAssetType;
 
 import java.util.regex.Pattern;
 
+import static net.hostsharing.hsadminng.hs.validation.EnumerationProperty.enumerationProperty;
+import static net.hostsharing.hsadminng.hs.validation.IntegerProperty.integerProperty;
+import static net.hostsharing.hsadminng.hs.validation.StringProperty.stringProperty;
+
 class HsUnixUserHostingAssetValidator extends HsHostingAssetEntityValidator {
 
     HsUnixUserHostingAssetValidator() {
         super(  BookingItem.mustBeNull(),
                 ParentAsset.mustBeOfType(HsHostingAssetType.MANAGED_WEBSPACE),
                 AssignedToAsset.mustBeNull(),
-              AlarmContact.isOptional(), // TODO.spec: for quota notifications
+                AlarmContact.isOptional(),
-              NO_EXTRA_PROPERTIES); // TODO.spec: yet to be specified
+
+                integerProperty("SSD hard quota").unit("GB").maxFrom("SSD").optional(),
+                integerProperty("SSD soft quota").unit("GB").minFrom("SSD hard quota").optional(),
+                integerProperty("HDD hard quota").unit("GB").maxFrom("HDD").optional(),
+                integerProperty("HDD soft quota").unit("GB").minFrom("HDD hard quota").optional(),
+                enumerationProperty("shell")
+                        .values("/bin/false", "/bin/bash", "/bin/csh", "/bin/dash", "/usr/bin/tcsh", "/usr/bin/zsh", "/usr/bin/passwd")
+                        .withDefault("/bin/false"),
+                stringProperty("homedir").readOnly(),
+                stringProperty("totpKey").matchesRegEx("^0x\\([0-9A-Fa-f][0-9A-Fa-f]\\)+$").minLength(12).maxLength(32).writeOnly().optional(),
+                stringProperty("password").minLength(8).maxLength(40).writeOnly()); // FIXME: spec
     }
 
     @Override

src/main/java/net/hostsharing/hsadminng/hs/validation/EnumerationProperty.java

@@ -35,7 +35,7 @@ public class EnumerationProperty extends ValidatableProperty<String> {
     public void deferredInit(final ValidatableProperty<?>[] allProperties) {
         if (deferredInit != null) {
             if (this.values != null) {
-                throw new IllegalStateException("property " + toString() + " already has values");
+                throw new IllegalStateException("property " + this + " already has values");
             }
             this.values = deferredInit.apply(allProperties);
         }

src/main/java/net/hostsharing/hsadminng/hs/validation/HsEntityValidator.java

@@ -40,14 +40,19 @@ public abstract class HsEntityValidator<E> {
 
     protected ArrayList<String> validateProperties(final Map<String, Object> properties) {
         final var result = new ArrayList<String>();
+
+        // verify that all actually given properties are specified
         properties.keySet().forEach( givenPropName -> {
             if (stream(propertyValidators).map(pv -> pv.propertyName).noneMatch(propName -> propName.equals(givenPropName))) {
                 result.add(givenPropName + "' is not expected but is set to '" + properties.get(givenPropName) + "'");
             }
         });
+
+        // run all property validators
         stream(propertyValidators).forEach(pv -> {
             result.addAll(pv.validate(properties));
         });
+
         return result;
     }
 

src/main/java/net/hostsharing/hsadminng/hs/validation/IntegerProperty.java

@@ -16,7 +16,9 @@ public class IntegerProperty extends ValidatableProperty<Integer> {
 
     private String unit;
     private Integer min;
+    private String minFrom;
     private Integer max;
+    private String maxFrom;
     private Integer step;
 
     public static IntegerProperty integerProperty(final String propertyName) {
@@ -27,6 +29,16 @@ public class IntegerProperty extends ValidatableProperty<Integer> {
         super(Integer.class, propertyName, KEY_ORDER);
     }
 
+    public IntegerProperty minFrom(final String propertyName) {
+        minFrom = propertyName;
+        return this;
+    }
+
+    public IntegerProperty maxFrom(final String propertyName) {
+        maxFrom = propertyName;
+        return this;
+    }
+
     @Override
     public String unit() {
         return unit;

src/main/java/net/hostsharing/hsadminng/hs/validation/StringProperty.java

@@ -0,0 +1,76 @@
+package net.hostsharing.hsadminng.hs.validation;
+
+import lombok.Setter;
+import net.hostsharing.hsadminng.mapper.Array;
+
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.regex.Pattern;
+
+
+@Setter
+public class StringProperty extends ValidatableProperty<String> {
+
+    private static final String[] KEY_ORDER = Array.join(
+            ValidatableProperty.KEY_ORDER_HEAD,
+            Array.of("values"),
+            ValidatableProperty.KEY_ORDER_TAIL);
+    private Pattern regExPattern;
+    private Integer minLength;
+    private Integer maxLength;
+    private boolean writeOnly;
+    private boolean readOnly;
+
+    private StringProperty(final String propertyName) {
+        super(String.class, propertyName, KEY_ORDER);
+    }
+
+    public static StringProperty stringProperty(final String propertyName) {
+        return new StringProperty(propertyName);
+    }
+
+    public StringProperty minLength(final int minLength) {
+        this.minLength = minLength;
+        return this;
+    }
+
+    public StringProperty maxLength(final int maxLength) {
+        this.maxLength = maxLength;
+        return this;
+    }
+
+    public StringProperty matchesRegEx(final String regExPattern) {
+        this.regExPattern = Pattern.compile(regExPattern);
+        return this;
+    }
+
+    public StringProperty writeOnly() {
+        this.writeOnly = true;
+        super.optional();
+        return this;
+    }
+
+    public StringProperty readOnly() {
+        this.readOnly = true;
+        super.optional();
+        return this;
+    }
+
+    @Override
+    protected void validate(final ArrayList<String> result, final String propValue, final Map<String, Object> props) {
+        if (minLength != null && propValue.length()<minLength) {
+            result.add(propertyName + "' length is expected to be at min " + minLength + " but length of '" + propValue+ "' is " + propValue.length());
+        }
+        if (maxLength != null && propValue.length()>maxLength) {
+            result.add(propertyName + "' length is expected to be at max " + maxLength + " but length of '" + propValue+ "' is " + propValue.length());
+        }
+        if (regExPattern != null && !regExPattern.matcher(propValue).matches()) {
+            result.add(propertyName + "' is expected to be match " + regExPattern + " but '" + propValue+ "' does not match");
+        }
+    }
+
+    @Override
+    protected String simpleTypeName() {
+        return "string";
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/booking/item/TestHsBookingItem.java

@@ -12,21 +12,35 @@ import static net.hostsharing.hsadminng.hs.booking.project.TestHsBookingProject.
 @UtilityClass
 public class TestHsBookingItem {
 
-    public static final HsBookingItemEntity TEST_MANAGED_SERVER_BOOKING_ITEM = HsBookingItemEntity.builder()
-            .project(TEST_PROJECT)
-            .type(HsBookingItemType.MANAGED_SERVER)
-            .caption("test project booking item")
-            .resources(Map.ofEntries(
-                    entry("someThing", 1),
-                    entry("anotherThing", "blue")
-            ))
-            .validity(Range.closedInfinite(LocalDate.of(2020, 1, 15)))
-            .build();
-
     public static final HsBookingItemEntity TEST_CLOUD_SERVER_BOOKING_ITEM = HsBookingItemEntity.builder()
             .project(TEST_PROJECT)
             .type(HsBookingItemType.CLOUD_SERVER)
             .caption("test cloud server booking item")
             .validity(Range.closedInfinite(LocalDate.of(2020, 1, 15)))
             .build();
+
+    public static final HsBookingItemEntity TEST_MANAGED_SERVER_BOOKING_ITEM = HsBookingItemEntity.builder()
+            .project(TEST_PROJECT)
+            .type(HsBookingItemType.MANAGED_SERVER)
+            .caption("test project booking item")
+            .resources(Map.ofEntries(
+                    entry("CPUs", 2),
+                    entry("RAM", 4),
+                    entry("SSD", 50),
+                    entry("Traffic", 250)
+            ))
+            .validity(Range.closedInfinite(LocalDate.of(2020, 1, 15)))
+            .build();
+
+    public static final HsBookingItemEntity TEST_MANAGED_WEBSPACE_BOOKING_ITEM = HsBookingItemEntity.builder()
+            .parentItem(TEST_MANAGED_SERVER_BOOKING_ITEM)
+            .type(HsBookingItemType.MANAGED_WEBSPACE)
+            .caption("test managed webspace item")
+            .resources(Map.ofEntries(
+                    entry("SSD", 25),
+                    entry("Traffic", 250)
+            ))
+            .validity(Range.closedInfinite(LocalDate.of(2020, 1, 15)))
+            .build();
+
 }

src/test/java/net/hostsharing/hsadminng/hs/hosting/asset/validators/HsUnixUserHostingAssetValidatorUnitTest.java

@@ -1,14 +1,78 @@
 package net.hostsharing.hsadminng.hs.hosting.asset.validators;
 
 import net.hostsharing.hsadminng.hs.hosting.asset.HsHostingAssetEntity;
+import net.hostsharing.hsadminng.hs.hosting.asset.HsHostingAssetType;
 import org.junit.jupiter.api.Test;
 
+import java.util.Map;
+
+import static net.hostsharing.hsadminng.hs.booking.item.TestHsBookingItem.TEST_MANAGED_SERVER_BOOKING_ITEM;
+import static net.hostsharing.hsadminng.hs.booking.item.TestHsBookingItem.TEST_MANAGED_WEBSPACE_BOOKING_ITEM;
 import static net.hostsharing.hsadminng.hs.hosting.asset.HsHostingAssetType.MANAGED_WEBSPACE;
 import static net.hostsharing.hsadminng.hs.hosting.asset.HsHostingAssetType.UNIX_USER;
+import static net.hostsharing.hsadminng.mapper.PatchMap.entry;
 import static org.assertj.core.api.Assertions.assertThat;
 
 class HsUnixUserHostingAssetValidatorUnitTest {
 
+    private final HsHostingAssetEntity TEST_MANAGED_SERVER_HOSTING_ASSET = HsHostingAssetEntity.builder()
+            .type(HsHostingAssetType.MANAGED_SERVER)
+            .identifier("vm1234")
+            .caption("some managed server")
+            .bookingItem(TEST_MANAGED_SERVER_BOOKING_ITEM)
+            .build();
+    private HsHostingAssetEntity TEST_MANAGED_WEBSPACE_HOSTING_ASSET = HsHostingAssetEntity.builder()
+            .type(MANAGED_WEBSPACE)
+            .bookingItem(TEST_MANAGED_WEBSPACE_BOOKING_ITEM)
+            .parentAsset(TEST_MANAGED_SERVER_HOSTING_ASSET)
+            .identifier("abc00")
+            .build();;
+
+    @Test
+    void validatesValidUnixUser() {
+        // given
+        final var unixUserHostingAsset = HsHostingAssetEntity.builder()
+                .type(UNIX_USER)
+                .parentAsset(TEST_MANAGED_WEBSPACE_HOSTING_ASSET)
+                .identifier("abc00-temp")
+                .caption("some valid test UnixUser")
+                .build();
+        final var validator = HsHostingAssetEntityValidatorRegistry.forType(unixUserHostingAsset.getType());
+
+        // when
+        final var result = validator.validate(unixUserHostingAsset);
+
+        // then
+        assertThat(result).isEmpty();
+    }
+
+    @Test
+    void validatesUnixUserProperties() {
+        // given
+        final var unixUserHostingAsset = HsHostingAssetEntity.builder()
+                .type(UNIX_USER)
+                .parentAsset(TEST_MANAGED_WEBSPACE_HOSTING_ASSET)
+                .identifier("abc00-temp")
+                .caption("some test UnixUser with invalid properties")
+                .config(Map.ofEntries(
+                        entry("SSD hard quota", 1000),
+                        entry("SSD soft quota", 2000),
+                        entry("HDD hard quota", 1000),
+                        entry("HDD soft quota", 2000),
+                        entry("homedir", "/is/read-only"),
+                        entry("totpKey", "should be a hex number"),
+                        entry("password", "should be a hex number")
+                ))
+                .build();
+        final var validator = HsHostingAssetEntityValidatorRegistry.forType(unixUserHostingAsset.getType());
+
+        // when
+        final var result = validator.validate(unixUserHostingAsset);
+
+        // then
+        assertThat(result).isEmpty();
+    }
+
     @Test
     void validatesInvalidIdentifier() {
         // given
@@ -19,7 +83,6 @@ class HsUnixUserHostingAssetValidatorUnitTest {
                 .build();
         final var validator = HsHostingAssetEntityValidatorRegistry.forType(unixUserHostingAsset.getType());
 
-
         // when
         final var result = validator.validate(unixUserHostingAsset);