initial commit

.gitignore

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+target

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.example</groupId>
+    <artifactId>Widerhall</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>javax.mail</groupId>
+            <artifactId>javax.mail-api</artifactId>
+            <version>1.6.2</version>
+        </dependency>
+
+        <dependency>
+            <groupId>javax</groupId>
+            <artifactId>javaee-api</artifactId>
+            <version>8.0.1</version>
+            <scope>provided</scope>
+        </dependency>
+
+        <dependency>
+            <groupId>ch.qos.logback</groupId>
+            <artifactId>logback-classic</artifactId>
+            <version>1.3.0-alpha13</version>
+        </dependency>
+
+        <dependency>
+            <groupId>com.googlecode.json-simple</groupId>
+            <artifactId>json-simple</artifactId>
+            <version>1.1.1</version>
+        </dependency>
+
+    </dependencies>
+
+</project>

src/main/java/de/srsoftware/widerhall/SmtpClient.java

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+package de.srsoftware.widerhall;
+
+import org.json.simple.JSONObject;
+import org.json.simple.parser.JSONParser;
+import org.json.simple.parser.ParseException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.json.stream.JsonParser;
+import javax.mail.Authenticator;
+import javax.mail.PasswordAuthentication;
+import javax.mail.Session;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.Properties;
+
+public class SmtpClient {
+    private static final Logger LOG = LoggerFactory.getLogger(SmtpClient.class);
+    private static final String HOST = "mail.smtp.host";
+    private static final String PORT = "mail.smtp.port";
+    private static final String SOCK = "mail.smtp.socketFactory.port";
+    private static final String CLASS = "mail.smtp.socketFactory.class";
+    private static final String SOCKET_FACTORY = javax.net.ssl.SSLSocketFactory.class.getCanonicalName();
+    private static final String AUTH = "mail.smtp.auth";
+
+    private Session session;
+
+    public void login(String host, int port, String username, String password){
+        Properties props = new Properties();
+        props.put(HOST,host);
+        props.put(PORT,port);
+        props.put(SOCK,port);
+        props.put(AUTH,true);
+        props.put(CLASS,SOCKET_FACTORY);
+
+        Authenticator auth = new Authenticator() {
+            @Override
+            protected PasswordAuthentication getPasswordAuthentication() {
+                return new PasswordAuthentication(username,password);
+            }
+        };
+
+        session = Session.getDefaultInstance(props,auth);
+        LOG.debug("Created new session: {}", session);
+    }
+
+    public static void main(String[] args) throws IOException, ParseException {
+        var parser = new JSONParser();
+        var config = Files.readString(new File("/tmp/config.json").toPath());
+        LOG.debug("config: {}",config);
+        var json = parser.parse(config);
+        LOG.debug("json: {}",json);
+    }
+}