Flatten packages

Remove modules prefix

domain/src/security/HtmlSanitizer.kt

@@ -0,0 +1,38 @@
+package be.simplenotes.domain.security
+
+import be.simplenotes.types.LoggedInUser
+import org.owasp.html.HtmlChangeListener
+import org.owasp.html.HtmlPolicyBuilder
+import org.slf4j.LoggerFactory
+import javax.inject.Singleton
+
+@Singleton
+class HtmlSanitizer {
+    private val htmlPolicy = HtmlPolicyBuilder()
+        .allowElements("a")
+        .allowCommonBlockElements()
+        .allowCommonInlineFormattingElements()
+        .allowElements("pre")
+        .allowAttributes("class").onElements("code")
+        .allowUrlProtocols("http", "https")
+        .allowAttributes("href").onElements("a")
+        .allowElements("input")
+        .allowAttributes("type", "checked", "disabled", "readonly").onElements("input")
+        .requireRelNofollowOnLinks()
+        .toFactory()!!
+
+    private val logger = LoggerFactory.getLogger(javaClass)
+
+    private val htmlChangeListener = object : HtmlChangeListener<LoggedInUser> {
+        override fun discardedTag(context: LoggedInUser?, elementName: String) {
+            logger.warn("Discarded tag $elementName for user $context")
+        }
+
+        override fun discardedAttributes(context: LoggedInUser?, tagName: String, vararg attributeNames: String) {
+            logger.warn("Discarded attributes ${attributeNames.contentToString()} on tag $tagName for user $context")
+        }
+    }
+
+    fun sanitize(userId: LoggedInUser, unsafeHtml: String) =
+        htmlPolicy.sanitize(unsafeHtml, htmlChangeListener, userId)!!
+}