Committing changes for BAEL-3962

java-download-email/pom.xml

@@ -0,0 +1,82 @@
+<?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>DemoEmailAttachment</groupId>
+	<artifactId>EmailAttachments</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+
+	<name>EmailAttachments</name>
+	<!-- FIXME change it to the project's website -->
+	<url>http://www.example.com</url>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<maven.compiler.source>1.7</maven.compiler.source>
+		<maven.compiler.target>1.7</maven.compiler.target>
+	</properties>
+
+	<dependencies>
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.11</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.sun.mail</groupId>
+			<artifactId>javax.mail</artifactId>
+			<version>1.6.2</version>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<pluginManagement><!-- lock down plugins versions to avoid using Maven 
+				defaults (may be moved to parent pom) -->
+			<plugins>
+				<!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
+				<plugin>
+					<artifactId>maven-clean-plugin</artifactId>
+					<version>3.1.0</version>
+				</plugin>
+				<!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
+				<plugin>
+					<artifactId>maven-resources-plugin</artifactId>
+					<version>3.0.2</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-compiler-plugin</artifactId>
+					<version>3.8.0</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-surefire-plugin</artifactId>
+					<version>2.22.1</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-jar-plugin</artifactId>
+					<version>3.0.2</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-install-plugin</artifactId>
+					<version>2.5.2</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-deploy-plugin</artifactId>
+					<version>2.8.2</version>
+				</plugin>
+				<!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
+				<plugin>
+					<artifactId>maven-site-plugin</artifactId>
+					<version>3.7.1</version>
+				</plugin>
+				<plugin>
+					<artifactId>maven-project-info-reports-plugin</artifactId>
+					<version>3.0.0</version>
+				</plugin>
+			</plugins>
+		</pluginManagement>
+	</build>
+</project>

java-download-email/src/main/java/com/baeldung/downloadAttachments/DownloadEmailAttachments.java

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+package com.baeldung.downloadAttachments;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Properties;
+import javax.mail.Address;
+import javax.mail.Folder;
+import javax.mail.Message;
+import javax.mail.MessagingException;
+import javax.mail.Multipart;
+import javax.mail.NoSuchProviderException;
+import javax.mail.Part;
+import javax.mail.Session;
+import javax.mail.Store;
+import javax.mail.internet.MimeBodyPart;
+
+public class DownloadEmailAttachments {
+    private String downloadDirectory;
+
+    public void setSaveDirectory(String dir) {
+        this.downloadDirectory = dir;
+    }
+
+    public void downloadEmailAttachments(String host, String port, String userName, String password) throws NoSuchProviderException, MessagingException, IOException {
+        Properties properties = setMailServerProperties(host, port);
+        Store store = setSessionStoreProperties(userName, password, properties);
+        Folder inbox = store.getFolder("INBOX");
+        inbox.open(Folder.READ_ONLY);
+        Message[] arrayMessages = inbox.getMessages();
+        for (int i = 0; i < arrayMessages.length; i++) {
+            Message message = arrayMessages[i];
+            Address[] fromAddress = message.getFrom();
+            String from = fromAddress[0].toString();
+            String subject = message.getSubject();
+            String sentDate = message.getSentDate()
+                .toString();
+            String contentType = message.getContentType();
+            String messageContent = "";
+            String attachments = "";
+            if (contentType.contains("multipart")) {
+                Multipart multiPart = (Multipart) message.getContent();
+                int numberOfParts = multiPart.getCount();
+                for (int partCount = 0; partCount < numberOfParts; partCount++) {
+                    MimeBodyPart part = (MimeBodyPart) multiPart.getBodyPart(partCount);
+                    if (Part.ATTACHMENT.equalsIgnoreCase(part.getDisposition())) {
+                        String file = part.getFileName();
+                        attachments += file + ", ";
+                        part.saveFile(downloadDirectory + File.separator + file);
+                    } else {
+                        messageContent = part.getContent()
+                            .toString();
+                    }
+                }
+                if (attachments.length() > 1) {
+                    attachments = attachments.substring(0, attachments.length() - 2);
+                }
+            } else if (contentType.contains("text/plain") || contentType.contains("text/html")) {
+                Object content = message.getContent();
+                if (content != null) {
+                    messageContent = content.toString();
+                }
+            }
+            System.out.println("Message #" + (i + 1) + ":");
+            System.out.println(" From: " + from);
+            System.out.println(" Subject: " + subject);
+            System.out.println(" Sent Date: " + sentDate);
+            System.out.println(" Message: " + messageContent);
+            System.out.println(" Attachments: " + attachments);
+        }
+        inbox.close(false);
+        store.close();
+    }
+
+    public Store setSessionStoreProperties(String userName, String password, Properties properties) throws NoSuchProviderException, MessagingException {
+        Session session = Session.getDefaultInstance(properties);
+
+        Store store = session.getStore("pop3");
+        store.connect(userName, password);
+        return store;
+    }
+
+    public Properties setMailServerProperties(String host, String port) {
+        Properties properties = new Properties();
+
+        properties.put("mail.pop3.host", host);
+        properties.put("mail.pop3.port", port);
+
+        properties.setProperty("mail.pop3.socketFactory.class", "javax.net.ssl.SSLSocketFactory");
+        properties.setProperty("mail.pop3.socketFactory.fallback", "false");
+        properties.setProperty("mail.pop3.socketFactory.port", String.valueOf(port));
+        return properties;
+    }
+
+    public static void main(String[] args) {
+        String host = "pop.gmail.com";
+        String port = "995";
+        String userName = "your_email";
+        String password = "your_password";
+
+        String saveDirectory = "valid_folder_path";
+
+        DownloadEmailAttachments receiver = new DownloadEmailAttachments();
+        receiver.setSaveDirectory(saveDirectory);
+        try {
+            receiver.downloadEmailAttachments(host, port, userName, password);
+        } catch (NoSuchProviderException ex) {
+            System.out.println("No provider for pop3.");
+            ex.printStackTrace();
+        } catch (MessagingException ex) {
+            System.out.println("Could not connect to the message store");
+            ex.printStackTrace();
+        } catch (IOException ex) {
+            ex.printStackTrace();
+        }
+    }
+}

java-download-email/src/test/java/com/baeldung/downloadAttachments/DownloadEmailAttachmentsTest.java

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+package com.baeldung.downloadAttachments;
+
+import static org.junit.Assert.fail;
+import org.junit.Test;
+
+public class DownloadEmailAttachmentsTest {
+    @Test
+    public void when_Run_then_downloadAttachments() {
+
+        String host = "pop.gmail.com";
+        String port = "995";
+        String userName = "your_email";
+        String password = "your_password";
+
+        String saveDirectory = "valid_folder_path";
+
+        DownloadEmailAttachments receiver = new DownloadEmailAttachments();
+        receiver.setSaveDirectory(saveDirectory);
+        try {
+            receiver.downloadEmailAttachments(host, port, userName, password);
+        } catch (Exception ex) {
+            fail("Exception: " + ex);
+        }
+    }
+}