implemented storing of bookmarks

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

core/build.gradle.kts

@@ -11,6 +11,7 @@ repositories {
 
 dependencies {
     implementation("de.srsoftware:tools.mime:1.1.2")
+    implementation("de.srsoftware:tools.util:2.0.4")
     implementation("org.xerial:sqlite-jdbc:3.49.0.0")
     testImplementation(platform("org.junit:junit-bom:5.10.0"))
     testImplementation("org.junit.jupiter:junit-jupiter")

core/src/main/java/de/srsoftware/umbrella/core/Util.java

@@ -3,6 +3,7 @@ package de.srsoftware.umbrella.core;
 
 import static de.srsoftware.tools.MimeType.MIME_FORM_URL;
 import static de.srsoftware.tools.MimeType.MIME_JSON;
+import static de.srsoftware.tools.Strings.hex;
 import static de.srsoftware.umbrella.core.Constants.*;
 import static java.lang.System.Logger.Level.*;
 import static java.lang.System.Logger.Level.WARNING;
@@ -16,6 +17,8 @@ import java.io.*;
 import java.net.HttpURLConnection;
 import java.net.URI;
 import java.net.URL;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
 import java.time.Instant;
 import java.time.LocalDateTime;
 import java.time.ZoneId;
@@ -29,6 +32,15 @@ public class Util {
 	private static final Pattern UML_PATTERN = Pattern.compile("@start(\\w+)(.*)@end(\\1)",Pattern.DOTALL);
 	private static File plantumlJar = null;
 	private static final JParsedown MARKDOWN = new JParsedown();
+	private static final MessageDigest SHA1;
+
+	static {
+		try {
+			SHA1 = MessageDigest.getInstance("SHA-1");
+		} catch (NoSuchAlgorithmException e) {
+			throw new RuntimeException(e);
+		}
+	}
 
 	private Util(){}
 
@@ -155,6 +167,11 @@ public class Util {
 		}
 	}
 
+	public static String sha1(String plain){
+		var bytes = SHA1.digest(plain.getBytes(UTF_8));
+		return hex(bytes);
+	}
+
 	public static void setPlantUmlJar(File file){
 		LOG.log(INFO,"Using plantuml @ {0}",file.getAbsolutePath());
 		plantumlJar = file;