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FEAT: EmailReceiver Class Implementation #30

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FEAT: EmailReceiver Class Implementation #30

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93f40ec
FEAT: Rewrite EmailReceiver
Rexezuge Oct 31, 2022
faa2df7
FEAT: New `Email` Class
Rexezuge Nov 1, 2022
cbef1c7
FEAT: 1
Rexezuge Nov 8, 2022
00d598c
FEAT: Add Junit Test For Email
Rexezuge Nov 10, 2022
a54324a
DOCS: README for `app.easycontact.server.imap`
Rexezuge Nov 22, 2022
cc39530
FEAT: Remove `ExampleMain.java`
Rexezuge Nov 23, 2022
6dcfb97
Merge branch 'R-MAIN' into gongz3-IMAPInterface
Rexezuge Dec 6, 2022
17ade52
FIX: Add JDoc missing param
Rexezuge Dec 6, 2022
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125 changes: 66 additions & 59 deletions EasyContact.app/server/pom.xml
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@@ -1,61 +1,68 @@
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.4</version>
<relativePath/>
</parent>
<groupId>app.EasyContact.server</groupId>
<artifactId>EasyContact.server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>EasyContact.server</name>
<description>EasyContact Backend Java Server</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
<version>2.7.4</version>
</dependency>
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.6.2</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.7.4</version>
<relativePath/>
</parent>
<groupId>app.EasyContact.server</groupId>
<artifactId>EasyContact.server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>EasyContact.server</name>
<description>EasyContact Backend Java Server</description>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.sun.mail</groupId>
<artifactId>javax.mail</artifactId>
<version>1.6.2</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.9.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mockito</groupId>
<artifactId>mockito-all</artifactId>
<version>1.10.19</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
16 changes: 16 additions & 0 deletions EasyContact.app/server/src/main/java/app/easycontact/server/imap/Email.java
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@@ -0,0 +1,16 @@
package app.easycontact.server.imap;

import lombok.Data;
import lombok.experimental.SuperBuilder;

@SuperBuilder
@Data
public abstract class Email {
public final long id;
public final String from;
public final String subject;
public final String toList;
public final String ccList;
public final String sendDate;
public final String message;
}
9 changes: 9 additions & 0 deletions EasyContact.app/server/src/main/java/app/easycontact/server/imap/EmailImplementation.java
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@@ -0,0 +1,9 @@
package app.easycontact.server.imap;

import lombok.Data;
import lombok.experimental.SuperBuilder;

@SuperBuilder
@Data
public final class EmailImplementation extends Email {
}
139 changes: 10 additions & 129 deletions EasyContact.app/server/src/main/java/app/easycontact/server/imap/EmailReceiver.java
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Original file line number Diff line number Diff line change
@@ -1,138 +1,19 @@
package app.easycontact.server.imap;

import javax.mail.*;
import java.util.Properties;
import lombok.NonNull;
import lombok.experimental.SuperBuilder;

public class EmailReceiver {

/**
* Test downloading e-mail messages
*/
public static void main(String[] args) {
// for IMAP
String protocol = "imap";
String host = "mail.rpi.edu";
String port = "993";

String userName = "usrName";
String password = "password";

EmailReceiver receiver = new EmailReceiver();
receiver.downloadEmails(protocol, host, port, userName, password);
}

/**
* Returns a Properties object which is configured for a POP3/IMAP server
*
* @param protocol either "imap" or "pop3"
* @param host
* @param port
* @return a Properties object
*/
private Properties getServerProperties(String protocol, String host, String port) {
Properties properties = new Properties();

// server setting
properties.put(String.format("mail.%s.host", protocol), host);
properties.put(String.format("mail.%s.port", protocol), port);

// SSL setting
properties.setProperty(String.format("mail.%s.socketFactory.class", protocol), "javax.net.ssl.SSLSocketFactory");
properties.setProperty(String.format("mail.%s.socketFactory.fallback", protocol), "false");
properties.setProperty(String.format("mail.%s.socketFactory.port", protocol), String.valueOf(port));

return properties;
}
@SuperBuilder
public abstract class EmailReceiver {
@NonNull String userName;
@NonNull String userPassword;
@NonNull String serverName;
@NonNull String serverPort;

/**
* Downloads new messages and fetches details for each message.
*
* @param protocol
* @param host
* @param port
* @param userName
* @param password
*/
public void downloadEmails(String protocol, String host, String port, String userName, String password) {
Properties properties = getServerProperties(protocol, host, port);
Session session = Session.getDefaultInstance(properties);

try {
// connects to the message store
Store store = session.getStore(protocol);
store.connect(userName, password);

// opens the inbox folder
Folder folderInbox = store.getFolder("INBOX");
folderInbox.open(Folder.READ_ONLY);

// fetches new messages from server
Message[] messages = folderInbox.getMessages();

for (int i = 0; i < messages.length; i++) {
Message msg = messages[i];
Address[] fromAddress = msg.getFrom();
String from = fromAddress[0].toString();
String subject = msg.getSubject();
String toList = parseAddresses(msg.getRecipients(Message.RecipientType.TO));
String ccList = parseAddresses(msg.getRecipients(Message.RecipientType.CC));
String sentDate = msg.getSentDate().toString();

String contentType = msg.getContentType();
String messageContent = "";

if (contentType.contains("text/plain") || contentType.contains("text/html")) {
try {
Object content = msg.getContent();
if (content != null) {
messageContent = content.toString();
}
} catch (Exception ex) {
messageContent = "[Error downloading content]";
ex.printStackTrace();
}
}

// print out details of each message
System.out.println("Message #" + (i + 1) + ":");
System.out.println("\t From: " + from);
System.out.println("\t To: " + toList);
System.out.println("\t CC: " + ccList);
System.out.println("\t Subject: " + subject);
System.out.println("\t Sent Date: " + sentDate);
System.out.println("\t Message: " + messageContent);
}

// disconnect
folderInbox.close(false);
store.close();
} catch (NoSuchProviderException ex) {
System.out.println("No provider for protocol: " + protocol);
ex.printStackTrace();
} catch (MessagingException ex) {
System.out.println("Could not connect to the message store");
ex.printStackTrace();
}
}

/**
* Returns a list of addresses in String format separated by comma
*
* @param address an array of Address objects
* @return a string represents a list of addresses
* @param folder name of the email folder
*/
private String parseAddresses(Address[] address) {
String listAddress = "";

if (address != null) {
for (int i = 0; i < address.length; i++) {
listAddress += address[i].toString() + ", ";
}
}
if (listAddress.length() > 1) {
listAddress = listAddress.substring(0, listAddress.length() - 2);
}

return listAddress;
}
public abstract void downloadEmails(String folder);
}
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