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Replace Auto email job with Work manager
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gpslogger/src/main/java/com/mendhak/gpslogger/senders/email/AutoEmailWorker.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,234 @@ | ||
| package com.mendhak.gpslogger.senders.email; | ||
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| import android.content.Context; | ||
| import android.util.Base64; | ||
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| import androidx.annotation.NonNull; | ||
| import androidx.work.Worker; | ||
| import androidx.work.WorkerParameters; | ||
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| import com.mendhak.gpslogger.common.AppSettings; | ||
| import com.mendhak.gpslogger.common.PreferenceHelper; | ||
| import com.mendhak.gpslogger.common.Strings; | ||
| import com.mendhak.gpslogger.common.events.UploadEvents; | ||
| import com.mendhak.gpslogger.common.network.LocalX509TrustManager; | ||
| import com.mendhak.gpslogger.common.network.Networks; | ||
| import com.mendhak.gpslogger.common.slf4j.Logs; | ||
| import com.mendhak.gpslogger.loggers.Files; | ||
| import com.mendhak.gpslogger.loggers.Streams; | ||
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| import org.apache.commons.net.ProtocolCommandEvent; | ||
| import org.apache.commons.net.ProtocolCommandListener; | ||
| import org.apache.commons.net.smtp.AuthenticatingSMTPClient; | ||
| import org.apache.commons.net.smtp.SMTPClient; | ||
| import org.apache.commons.net.smtp.SMTPReply; | ||
| import org.apache.commons.net.smtp.SimpleSMTPHeader; | ||
| import org.slf4j.Logger; | ||
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| import java.io.ByteArrayOutputStream; | ||
| import java.io.File; | ||
| import java.io.FileInputStream; | ||
| import java.io.IOException; | ||
| import java.io.Writer; | ||
| import java.util.ArrayList; | ||
| import java.util.Arrays; | ||
| import java.util.UUID; | ||
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| import de.greenrobot.event.EventBus; | ||
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| public class AutoEmailWorker extends Worker { | ||
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| private static final Logger LOG = Logs.of(AutoEmailWorker.class); | ||
| public AutoEmailWorker(@NonNull Context context, @NonNull WorkerParameters workerParams) { | ||
| super(context, workerParams); | ||
| } | ||
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| @NonNull | ||
| @Override | ||
| public Result doWork() { | ||
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| PreferenceHelper preferenceHelper = PreferenceHelper.getInstance(); | ||
| String smtpServer = preferenceHelper.getSmtpServer(); | ||
| String smtpPort = preferenceHelper.getSmtpPort(); | ||
| String smtpPassword = preferenceHelper.getSmtpPassword(); | ||
| String smtpUsername = preferenceHelper.getSmtpUsername(); | ||
| boolean smtpUseSsl = preferenceHelper.isSmtpSsl(); | ||
| String csvEmailTargets = preferenceHelper.getAutoEmailTargets(); | ||
| String fromAddress = preferenceHelper.getSmtpSenderAddress(); | ||
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| String subject = getInputData().getString("subject"); | ||
| String body = getInputData().getString("body"); | ||
| String[] fileNames = getInputData().getStringArray("fileNames"); | ||
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| File[] files = new File[fileNames.length]; | ||
| for (int i = 0; i < fileNames.length; i++) { | ||
| files[i] = new File(fileNames[i]); | ||
| } | ||
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| int port = Strings.toInt(smtpPort,25); | ||
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| if (Strings.isNullOrEmpty(fromAddress)) { | ||
| fromAddress = smtpUsername; | ||
| } | ||
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| AuthenticatingSMTPClient client = new AuthenticatingSMTPClient(); | ||
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| ArrayList<String> smtpServerResponses = new ArrayList<>(); | ||
| UploadEvents.AutoEmail smtpFailureEvent = null; | ||
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| try { | ||
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| client.addProtocolCommandListener(new ProtocolCommandListener() { | ||
| @Override | ||
| public void protocolCommandSent(ProtocolCommandEvent event) { | ||
| LOG.debug(event.getMessage()); | ||
| smtpServerResponses.add(event.getMessage()); | ||
| } | ||
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| @Override | ||
| public void protocolReplyReceived(ProtocolCommandEvent event) { | ||
| LOG.debug(event.getMessage()); | ||
| smtpServerResponses.add(event.getMessage()); | ||
| } | ||
| }); | ||
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| if(smtpUseSsl){ | ||
| client = new AuthenticatingSMTPClient("TLS",true); | ||
| } | ||
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| // optionally set a timeout to have a faster feedback on errors | ||
| client.setDefaultTimeout(10 * 1000); | ||
| checkReply(client); | ||
| LOG.debug("Connecting to SMTP Server"); | ||
| client.connect(smtpServer, port); | ||
| checkReply(client); | ||
| // you say ehlo and you specify the host you are connecting from, could be anything | ||
| client.ehlo("localhost"); | ||
| checkReply(client); | ||
| // if your host accepts STARTTLS, we're good everything will be encrypted, otherwise we're done here | ||
| LOG.debug("Checking TLS..."); | ||
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| client.setTrustManager(new LocalX509TrustManager(Networks.getKnownServersStore(AppSettings.getInstance()))); | ||
| if(!smtpUseSsl && client.execTLS()){ | ||
| client.ehlo("localhost"); | ||
| } | ||
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| client.auth(AuthenticatingSMTPClient.AUTH_METHOD.LOGIN, smtpUsername, smtpPassword); | ||
| checkReply(client); | ||
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| client.setSender(fromAddress); | ||
| checkReply(client); | ||
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| String target = csvEmailTargets.split(",")[0]; | ||
| client.addRecipient(target); | ||
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| SimpleSMTPHeader header = new SimpleSMTPHeader(fromAddress, target, subject); | ||
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| //Multiple email targets? | ||
| for (String ccTarget : csvEmailTargets.split(",")) { | ||
| if (!ccTarget.equalsIgnoreCase(target)) { | ||
| header.addCC(ccTarget); | ||
| client.addRecipient(ccTarget); | ||
| } | ||
| } | ||
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| checkReply(client); | ||
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| Writer writer = client.sendMessageData(); | ||
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| if (writer != null) { | ||
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| // Regular email with just a body | ||
| if (files == null || files.length == 0) { | ||
| header.addHeaderField("Content-Type", "text/plain; charset=UTF-8"); | ||
| writer.write(header.toString()); | ||
| writer.write(body); | ||
| } | ||
| // Attach files in a multipart way | ||
| else { | ||
| String boundary = UUID.randomUUID().toString().replaceAll("-", "").substring(0, 9); | ||
| header.addHeaderField("Content-Type", "multipart/mixed; boundary=" + boundary); | ||
| writer.write(header.toString()); | ||
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| writer.write("--" + boundary + "\n"); | ||
| writer.write("Content-Type: text/plain; charset=UTF-8" + "\n\n"); | ||
| writer.write(body); | ||
| writer.write("\n"); | ||
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| attachFilesToWriter(writer, boundary, files); | ||
| writer.write("--" + boundary + "--\n\n"); | ||
| } | ||
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| writer.close(); | ||
| if (!client.completePendingCommand()) {// failure | ||
| smtpFailureEvent = new UploadEvents.AutoEmail().failed("Failure to send the email"); | ||
| } | ||
| else { | ||
| LOG.info("Email - file sent"); | ||
| EventBus.getDefault().post(new UploadEvents.AutoEmail().succeeded()); | ||
| } | ||
| } | ||
| else { | ||
| smtpFailureEvent = new UploadEvents.AutoEmail().failed("Failure to send the email"); | ||
| } | ||
|
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| } | ||
| catch (Exception e) { | ||
| LOG.error("Could not send email ", e); | ||
| smtpFailureEvent = new UploadEvents.AutoEmail().failed("Could not send email " + e.getMessage() , e); | ||
| } | ||
| finally { | ||
| try{ | ||
| client.logout(); | ||
| client.disconnect(); | ||
| } | ||
| catch (Exception ignored) { | ||
| } | ||
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| if(smtpFailureEvent != null){ | ||
| smtpFailureEvent.smtpMessages = smtpServerResponses; | ||
| if(smtpFailureEvent.smtpMessages.isEmpty()){ | ||
| smtpFailureEvent.smtpMessages = new ArrayList<>(Arrays.asList(client.getReplyStrings())); | ||
| } | ||
| EventBus.getDefault().post(smtpFailureEvent); | ||
| return Result.failure(); | ||
| } | ||
| } | ||
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| return Result.success(); | ||
| } | ||
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| /** | ||
| * Append the given attachments to the message which is being written by the given writer. | ||
| * | ||
| * @param boundary separates each file attachment | ||
| */ | ||
| private static void attachFilesToWriter(Writer writer, String boundary, File[] files) throws IOException { | ||
| for (File f : files) { | ||
| ByteArrayOutputStream outputStream = new ByteArrayOutputStream((int) f.length()); | ||
| FileInputStream inputStream = new FileInputStream(f); | ||
| Streams.copyIntoStream(inputStream, outputStream); | ||
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| writer.write("--" + boundary + "\n"); | ||
| writer.write("Content-Type: application/" + Files.getMimeTypeFromFileName(f.getName()) + "; name=\"" + f.getName() + "\"\n"); | ||
| writer.write("Content-Disposition: attachment; filename=\"" + f.getName() + "\"\n"); | ||
| writer.write("Content-Transfer-Encoding: base64\n\n"); | ||
| String encodedFile = Base64.encodeToString(outputStream.toByteArray(), Base64.DEFAULT); | ||
| writer.write(encodedFile); | ||
| writer.write("\n"); | ||
| } | ||
| } | ||
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| private static void checkReply(SMTPClient sc) throws Exception { | ||
| if (SMTPReply.isNegativeTransient(sc.getReplyCode())) { | ||
| throw new Exception("Transient SMTP error " + sc.getReplyString()); | ||
| } else if (SMTPReply.isNegativePermanent(sc.getReplyCode())) { | ||
| throw new Exception("Permanent SMTP error " + sc.getReplyString()); | ||
| } | ||
| } | ||
| } |
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