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package de.thedevstack.conversationsplus.utils;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import de.thedevstack.conversationsplus.ConversationsPlusApplication;
import de.thedevstack.conversationsplus.entities.Conversation;
import de.thedevstack.conversationsplus.entities.DownloadableFile;
import de.thedevstack.conversationsplus.entities.FileParams;
import de.thedevstack.conversationsplus.entities.Message;
import de.thedevstack.conversationsplus.entities.Transferable;
import de.thedevstack.conversationsplus.enums.FileStatus;
import de.thedevstack.conversationsplus.persistance.DatabaseBackend;
import de.thedevstack.conversationsplus.persistance.FileBackend;
/**
* Utility class to work with messages.
*/
public final class MessageUtil {
public static void extractFileParamsFromBody(Message message) {
if (null == message) {
return;
}
String body = message.getBody();
/**
* there are a few cases where spaces result in an unwanted behavior, e.g.
* "http://example.com/image.jpg" text that will not be shown /abc.png"
* or more than one image link in one message.
*/
if (null == body || body.isEmpty() || body.contains(" ")) {
return;
}
FileParams fileParams = message.getFileParams();
if (null == fileParams) {
fileParams = new FileParams();
message.setFileParams(fileParams);
}
try {
URL url = new URL(body);
if (!url.getProtocol().equalsIgnoreCase("http") && !url.getProtocol().equalsIgnoreCase("https")) {
message.setTreatAsDownloadable(Message.Decision.NEVER);
return;
}
if (message.isHttpUploaded()) {
fileParams.setUrl(url.toString());
message.setTreatAsDownloadable(Message.Decision.MUST);
return;
}
String extension = FileUtils.getRelevantExtension(url);
if (extension == null) {
message.setTreatAsDownloadable(Message.Decision.NEVER);
return;
}
byte[] ivAndKey = UrlUtil.getIvAndKeyFromURL(url);
if (null != ivAndKey) {
if (MimeUtils.guessMimeTypeFromExtension(extension) != null) {
message.setTreatAsDownloadable(Message.Decision.MUST);
fileParams.setKeyAndIv(ivAndKey);
fileParams.setUrl(url.toString());
} else {
message.setTreatAsDownloadable(Message.Decision.NEVER);
}
} else if (Transferable.VALID_IMAGE_EXTENSIONS.contains(extension)
|| Transferable.WELL_KNOWN_EXTENSIONS.contains(extension)) {
message.setTreatAsDownloadable(Message.Decision.SHOULD);
fileParams.setUrl(url.toString());
} else {
message.setTreatAsDownloadable(Message.Decision.NEVER);
}
} catch (MalformedURLException e) {
message.setTreatAsDownloadable(Message.Decision.NEVER);
}
}
public static boolean needsDownload(Message message) {
FileStatus fileStatus = (null != message.getFileParams()) ? message.getFileParams().getFileStatus() : null;
return (null == fileStatus
|| (null != fileStatus && (fileStatus == FileStatus.NEEDS_DOWNLOAD || fileStatus == FileStatus.UNDEFINED)))
&& message.treatAsDownloadable() != Message.Decision.NEVER;
}
public static boolean isMessageSent(Message message) {
switch (message.getStatus()) {
case Message.STATUS_SEND:
case Message.STATUS_SEND_DISPLAYED:
case Message.STATUS_SEND_RECEIVED:
return true;
default:
return false;
}
}
public static void setAndSaveFileStatus(Message message, FileStatus fileStatus) {
message.getFileParams().setFileStatus(fileStatus);
DatabaseBackend.getInstance().updateMessage(message);
UiUpdateHelper.updateConversationUi();
}
public static boolean markMessage(Conversation conversation, String uuid, int status) {
if (uuid == null) {
return false;
} else {
Message message = conversation.findSentMessageWithUuid(uuid);
if (message != null) {
markMessage(message, status);
return true;
} else {
return false;
}
}
}
public static void markMessage(Message message, int status) {
if (status == Message.STATUS_SEND_FAILED
&& (message.getStatus() == Message.STATUS_SEND_RECEIVED || message
.getStatus() == Message.STATUS_SEND_DISPLAYED)) {
return;
}
message.setStatus(status);
DatabaseBackend.getInstance(ConversationsPlusApplication.getAppContext()).updateMessage(message);
UiUpdateHelper.updateConversationUi();
}
public static boolean wasHighlightedOrPrivate(final Message message) {
final String nick = message.getConversation().getMucOptions().getActualNick();
final Pattern highlight = generateNickHighlightPattern(nick);
if (message.getBody() == null || nick == null) {
return false;
}
final Matcher m = highlight.matcher(message.getBody());
return (m.find() || message.getType() == Message.TYPE_PRIVATE);
}
private static Pattern generateNickHighlightPattern(final String nick) {
// We expect a word boundary, i.e. space or start of string, followed by
// the
// nick (matched in case-insensitive manner), followed by optional
// punctuation (for example "bob: i disagree" or "how are you alice?"),
// followed by another word boundary.
return Pattern.compile("\\b" + Pattern.quote(nick) + "\\p{Punct}?\\b",
Pattern.CASE_INSENSITIVE | Pattern.UNICODE_CASE);
}
public static void updateMessageWithImageDetails(Message message, String filePath, long size, int imageWidth, int imageHeight) {
message.setRelativeFilePath(filePath);
MessageUtil.updateMessageWithFileParams(message, null, size, imageWidth, imageHeight);
}
public static void updateFileParams(Message message) {
updateFileParams(message, null);
}
public static void updateFileParams(Message message, URL url) {
DownloadableFile file = FileBackend.getFile(message);
int imageWidth = -1;
int imageHeight = -1;
if (message.getType() == Message.TYPE_IMAGE || file.getMimeType().startsWith("image/")) {
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
Bitmap bmp = BitmapFactory.decodeFile(file.getAbsolutePath(), options);
imageHeight = options.outHeight;
imageWidth = options.outWidth;
if (null != bmp) {
bmp.recycle();
}
}
MessageUtil.updateMessageWithFileParams(message, url, file.getSize(), imageWidth, imageHeight);
}
private static void updateMessageWithFileParams(Message message, URL url, long size, int imageWidth, int imageHeight) {
FileParams fileParams = message.getFileParams();
if (null == fileParams) {
fileParams = new FileParams();
message.setFileParams(fileParams);
}
fileParams.setSize(size);
if (null != url) {
fileParams.setUrl(url.toString());
}
if (-1 < imageWidth) {
fileParams.setWidth(imageWidth);
}
if (-1 < imageHeight) {
fileParams.setHeight(imageHeight);
}
String relativeFilePathFromMessage = message.getRelativeFilePath();
if (null != relativeFilePathFromMessage && relativeFilePathFromMessage.startsWith("/")) {
fileParams.setPath(relativeFilePathFromMessage);
}
}
private MessageUtil() {
// Static helper class
}
}
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