// Fallback method if news server doesnt' support listNewNews -> this is much slower
// but at least we get the messages
private String[] applyNextCommand(NNTPClient client, String group) throws IOException {
ArrayList<String> articleList = new ArrayList<>();
client.selectNewsgroup(group);
ArticleInfo pointer = new ArticleInfo();
int i = 0;
while (client.selectNextArticle(pointer) && i < 100) { // TODO while date > sync start date
// client.selectArticle(pointer.articleNumber, pointer);
Log.d(
TAG,
"pointer.articleNumber = "
+ pointer.articleNumber
+ ", pointer.articleId = "
+ pointer.articleId);
articleList.add(pointer.articleId);
i++;
}
String[] articleArray = new String[articleList.size()];
return articleList.toArray(articleArray);
}
public static void main(String[] args) throws SocketException, IOException {
if (args.length != 2 && args.length != 4) {
System.out.println("Usage: MessageThreading <hostname> <groupname> [<user> <password>]");
return;
}
String hostname = args[0];
String newsgroup = args[1];
NNTPClient client = new NNTPClient();
client.addProtocolCommandListener(new PrintCommandListener(new PrintWriter(System.out), true));
client.connect(hostname);
if (args.length == 4) { // Optional auth
String user = args[2];
String password = args[3];
if (!client.authenticate(user, password)) {
System.out.println("Authentication failed for user " + user + "!");
System.exit(1);
}
}
String fmt[] = client.listOverviewFmt();
if (fmt != null) {
System.out.println("LIST OVERVIEW.FMT:");
for (String s : fmt) {
System.out.println(s);
}
} else {
System.out.println("Failed to get OVERVIEW.FMT");
}
NewsgroupInfo group = new NewsgroupInfo();
client.selectNewsgroup(newsgroup, group);
long lowArticleNumber = group.getFirstArticleLong();
long highArticleNumber = lowArticleNumber + 5000;
System.out.println(
"Retrieving articles between [" + lowArticleNumber + "] and [" + highArticleNumber + "]");
Iterable<Article> articles = client.iterateArticleInfo(lowArticleNumber, highArticleNumber);
System.out.println("Building message thread tree...");
Threader threader = new Threader();
Article root = (Article) threader.thread(articles);
Article.printThread(root, 0);
}
private void getNewNewsForNewsgroup(
long serverId, NNTPClient client, long groupId, String groupName, int syncTime)
throws IOException, LoginException {
currentNewsgroupId = groupId;
// Create a GregorianCalendar instance with date of last sync.
NewsgroupQueries newsgroupQueries = new NewsgroupQueries(context);
long lastSyncDate = newsgroupQueries.getLastSyncDate(groupId);
GregorianCalendar calendar = new GregorianCalendar();
if (lastSyncDate != -1) {
calendar.setTimeInMillis(
lastSyncDate); // TODO compare mails that arrived in this second with database entries to
// not lose messages.
Log.d(TAG, "Last synced: " + NNTPDateFormatter.getPrettyDateString(lastSyncDate, context));
} else {
// Set sync interval; TODO get sync interval from settings
calendar.setTimeInMillis(
System.currentTimeMillis() - TimeUnit.MILLISECONDS.convert(syncTime, TimeUnit.DAYS));
Log.d(
TAG,
"Complete sync: "
+ NNTPDateFormatter.getPrettyDateString(calendar.getTimeInMillis(), context));
}
// get list of message id's from server
NewGroupsOrNewsQuery query = new NewGroupsOrNewsQuery(calendar, false);
query.addNewsgroup(groupName);
String[] messages = client.listNewNews(query);
if (messages == null) {
messages = applyNextCommand(client, groupName);
}
// Get messages and add them to database.
for (String s : messages) {
fetchMessage(serverId, groupId, s);
}
// Store date of last message that we fetched in newsgroup table and reset values.
if (currentNewsgroupId != -1 && currentMessageDate != -1) {
newsgroupQueries.setLastSyncDate(groupId, currentMessageDate);
}
currentNewsgroupId = -1;
currentMessageDate = -1;
}