Implement email configuration

docker-compose.yml

@@ -8,6 +8,12 @@ services:
     environment:
     - WEKAN_URL=http://localhost:3000
     - WEKAN_USER=someuser
-      - WEKAN_PASSWORD=somepass
+    - WEKAN_PASS=somepass
     - WEKAN_TARGET_BOARD=someId
     - WEKAN_TARGET_LIST=someListId
+    - MAIL_PROTOCOL=imap
+    - MAIL_URL=imap.server.somewhere
+    - MAIL_PORT=993
+    - MAIL_USER=mailuser
+    - MAIL_PASS=mailpass
+    - MAIL_FOLDER=inbox

src/main/java/cz/brmlab/wm/Application.java

@@ -1,7 +1,8 @@
 package cz.brmlab.wm;
 
-import cz.brmlab.wm.utils.exceptions.BrmException;
+import cz.brmlab.wm.config.MailConfiguration;
 import cz.brmlab.wm.config.WekanConfiguration;
+import cz.brmlab.wm.utils.exceptions.BrmException;
 import cz.brmlab.wm.wekan.pojo.card.PostCardResponse;
 import cz.brmlab.wm.wekan.rest.CardPost;
 import cz.brmlab.wm.wekan.rest.LoginPost;
@@ -28,6 +29,7 @@ public class Application implements CommandLineRunner {
     public void run(String... args) {
         try {
             WekanConfiguration wekanConfiguration = new WekanConfiguration();
+            MailConfiguration mailConfiguration = new MailConfiguration();
 
             LoginPost loginPost = new LoginPost(wekanConfiguration);
             loginPost.login();
@@ -37,6 +39,7 @@ public class Application implements CommandLineRunner {
 
         } catch (BrmException ex) {
             log.error("Error {} encountered, shutting down!", ex.getExitCode());
+            log.error("Error message is: {}", ex.getMessage());
             System.exit(ex.getExitCode().getCode());
         }
     }

src/main/java/cz/brmlab/wm/config/MailConfiguration.java

@@ -0,0 +1,72 @@
+package cz.brmlab.wm.config;
+
+import cz.brmlab.wm.utils.exceptions.BrmException;
+import cz.brmlab.wm.utils.exceptions.ExitCode;
+import lombok.Getter;
+import lombok.extern.slf4j.Slf4j;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+@Slf4j
+public class MailConfiguration implements EnvConfig {
+
+    //ENV variables for mail
+    private static final String MAIL_PROTOCOL = "MAIL_PROTOCOL";
+    private static final String MAIL_URL = "MAIL_URL";
+    private static final String MAIL_PORT = "MAIL_PORT";
+    private static final String MAIL_USER = "MAIL_USER";
+    private static final String MAIL_PASS = "MAIL_PASS";
+    private static final String MAIL_FOLDER = "MAIL_FOLDER";
+
+    //List of mail ENV vars
+    private static final List<String> properties = new ArrayList<>(Arrays.asList(MAIL_PROTOCOL, MAIL_URL, MAIL_PORT, MAIL_USER, MAIL_PASS, MAIL_FOLDER));
+
+    @Getter
+    private String mailProtocol;
+
+    @Getter
+    private String mailUrl;
+
+    @Getter
+    private String mailUser;
+
+    @Getter
+    private String mailPassword;
+
+    @Getter
+    private String mailFolder;
+
+    @Getter
+    private String mailPort;
+
+    /**
+     * Configuration for mail. Taken from the container ENV variables.
+     *
+     * @throws BrmException if some of the properties is missing in ENV variables.
+     */
+    public MailConfiguration() throws BrmException {
+        log.trace("{}() - start.", this.getClass().getSimpleName());
+
+        checkProps(properties);
+
+        this.mailProtocol = System.getenv(MAIL_PROTOCOL);
+        this.mailUrl = System.getenv(MAIL_URL);
+        this.mailPort = System.getenv(MAIL_PORT);
+        this.mailUser = System.getenv(MAIL_USER);
+        this.mailPassword = System.getenv(MAIL_PASS);
+        this.mailFolder = System.getenv(MAIL_FOLDER);
+
+        checkProtocol();
+
+        log.info("Mail config loaded successfully.");
+    }
+
+    private void checkProtocol() throws BrmException {
+        if (!this.mailProtocol.equalsIgnoreCase("imap")){
+            throw new BrmException(ExitCode.UNSUPPORTED_PROTOCOL.getReason(), ExitCode.UNSUPPORTED_PROTOCOL);
+        }
+    }
+
+}

src/main/java/cz/brmlab/wm/utils/exceptions/ExitCode.java

@@ -5,6 +5,7 @@ import lombok.Getter;
 public enum ExitCode {
 
     CONFIGURATION_MISSING(10, "Missing configuration property: "),
+    UNSUPPORTED_PROTOCOL(15, "Unsupported email protocol specified! IMAP only is currently supported."),
     POST_ERROR(20, "Failed POST request, RC: ");
 
     @Getter

src/test/java/cz/brmlab/wm/config/MailConfigurationTest.java

@@ -0,0 +1,116 @@
+package cz.brmlab.wm.config;
+
+import cz.brmlab.wm.utils.exceptions.BrmException;
+import cz.brmlab.wm.utils.exceptions.ExitCode;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.contrib.java.lang.system.EnvironmentVariables;
+
+import static org.junit.Assert.*;
+
+public class MailConfigurationTest {
+
+    @Rule
+    public final EnvironmentVariables environmentVariables
+            = new EnvironmentVariables();
+
+    private static final String MAIL_PROTOCOL = "MAIL_PROTOCOL";
+    private static final String MAIL_PROTOCOL_VALUE = "imap";
+
+    private static final String MAIL_URL = "MAIL_URL";
+    private static final String MAIL_URL_VALUE = "mail.test.url";
+
+    private static final String MAIL_PORT = "MAIL_PORT";
+    private static final String MAIL_PORT_VALUE = "993";
+
+    private static final String MAIL_USER = "MAIL_USER";
+    private static final String MAIL_USER_VALUE = "someuser";
+
+    private static final String MAIL_PASS = "MAIL_PASS";
+    private static final String MAIL_PASS_VALUE = "somepass";
+
+    private static final String MAIL_FOLDER = "MAIL_FOLDER";
+    private static final String MAIL_FOLDER_VALUE = "inbox";
+
+
+    @Before
+    public void setEnvironmentVariables() {
+        environmentVariables.set(MAIL_PROTOCOL, MAIL_PROTOCOL_VALUE);
+        environmentVariables.set(MAIL_URL, MAIL_URL_VALUE);
+        environmentVariables.set(MAIL_PORT, MAIL_PORT_VALUE);
+        environmentVariables.set(MAIL_USER, MAIL_USER_VALUE);
+        environmentVariables.set(MAIL_PASS, MAIL_PASS_VALUE);
+        environmentVariables.set(MAIL_FOLDER, MAIL_FOLDER_VALUE);
+    }
+
+    @After
+    public void cleanEnvVars() {
+        environmentVariables.clear(MAIL_PROTOCOL, MAIL_URL, MAIL_USER, MAIL_PASS, MAIL_FOLDER);
+    }
+
+    @Test
+    public void configurationOk() {
+
+        MailConfiguration configuration = null;
+        try {
+            configuration = new MailConfiguration();
+        } catch (BrmException e) {
+            fail("OK configuration should not throw an error!");
+        }
+        assertEquals(MAIL_PROTOCOL_VALUE, configuration.getMailProtocol());
+        assertEquals(MAIL_URL_VALUE, configuration.getMailUrl());
+        assertEquals(MAIL_USER_VALUE, configuration.getMailUser());
+        assertEquals(MAIL_PASS_VALUE, configuration.getMailPassword());
+        assertEquals(MAIL_FOLDER_VALUE, configuration.getMailFolder());
+        assertEquals(MAIL_PORT_VALUE, configuration.getMailPort());
+    }
+
+    @Test
+    public void allConfigurationMissing() {
+        cleanEnvVars();
+        MailConfiguration configuration = null;
+        try {
+            configuration = new MailConfiguration();
+            fail("Missing whole configuration should throw an error!");
+        } catch (BrmException ignored) {
+
+        }
+
+        assertNull(null, configuration);
+    }
+
+    @Test
+    public void missingOneProp() {
+
+        environmentVariables.clear(MAIL_PASS);
+
+        MailConfiguration configuration = null;
+        try {
+            configuration = new MailConfiguration();
+            fail("Missing one property in configuration should throw an error!");
+        } catch (BrmException ex) {
+            assertEquals(ExitCode.CONFIGURATION_MISSING.getReason() + MAIL_PASS, ex.getMessage());
+        }
+
+        assertNull(null, configuration);
+    }
+
+    @Test
+    public void unsupportedProtocol() {
+        environmentVariables.set(MAIL_PROTOCOL, "POP3");
+
+        MailConfiguration configuration = null;
+        try {
+            configuration = new MailConfiguration();
+            fail("Unsupported protocol should throw an error!");
+        } catch (BrmException ex) {
+            assertEquals(ExitCode.UNSUPPORTED_PROTOCOL.getReason(), ex.getMessage());
+        }
+
+        assertNull(null, configuration);
+    }
+
+}
+