void autoconfigureFolders(final ImapConnection connection)
throws IOException, MessagingException {
if (!connection.hasCapability(Capabilities.SPECIAL_USE)) {
if (K9MailLib.isDebug()) {
Log.d(LOG_TAG, "No detected folder auto-configuration methods.");
}
return;
}
if (K9MailLib.isDebug()) {
Log.d(LOG_TAG, "Folder auto-configuration: Using RFC6154/SPECIAL-USE.");
}
String command =
String.format(
"LIST (SPECIAL-USE) \"\" %s", ImapUtility.encodeString(getCombinedPrefix() + "*"));
List<ImapResponse> responses = connection.executeSimpleCommand(command);
List<ListResponse> listResponses = ListResponse.parseList(responses);
for (ListResponse listResponse : listResponses) {
String decodedFolderName;
try {
decodedFolderName = folderNameCodec.decode(listResponse.getName());
} catch (CharacterCodingException e) {
Log.w(
LOG_TAG,
"Folder name not correctly encoded with the UTF-7 variant "
+ "as defined by RFC 3501: "
+ listResponse.getName(),
e);
// We currently just skip folders with malformed names.
continue;
}
if (pathDelimiter == null) {
pathDelimiter = listResponse.getHierarchyDelimiter();
combinedPrefix = null;
}
if (listResponse.hasAttribute("\\Archive") || listResponse.hasAttribute("\\All")) {
mStoreConfig.setArchiveFolderName(decodedFolderName);
if (K9MailLib.isDebug()) {
Log.d(LOG_TAG, "Folder auto-configuration detected Archive folder: " + decodedFolderName);
}
} else if (listResponse.hasAttribute("\\Drafts")) {
mStoreConfig.setDraftsFolderName(decodedFolderName);
if (K9MailLib.isDebug()) {
Log.d(LOG_TAG, "Folder auto-configuration detected Drafts folder: " + decodedFolderName);
}
} else if (listResponse.hasAttribute("\\Sent")) {
mStoreConfig.setSentFolderName(decodedFolderName);
if (K9MailLib.isDebug()) {
Log.d(LOG_TAG, "Folder auto-configuration detected Sent folder: " + decodedFolderName);
}
} else if (listResponse.hasAttribute("\\Junk")) {
mStoreConfig.setSpamFolderName(decodedFolderName);
if (K9MailLib.isDebug()) {
Log.d(LOG_TAG, "Folder auto-configuration detected Spam folder: " + decodedFolderName);
}
} else if (listResponse.hasAttribute("\\Trash")) {
mStoreConfig.setTrashFolderName(decodedFolderName);
if (K9MailLib.isDebug()) {
Log.d(LOG_TAG, "Folder auto-configuration detected Trash folder: " + decodedFolderName);
}
}
}
}
private Set<String> listFolders(ImapConnection connection, boolean subscribedOnly)
throws IOException, MessagingException {
String commandResponse = subscribedOnly ? "LSUB" : "LIST";
List<ImapResponse> responses =
connection.executeSimpleCommand(
String.format(
"%s \"\" %s",
commandResponse, ImapUtility.encodeString(getCombinedPrefix() + "*")));
List<ListResponse> listResponses =
(subscribedOnly) ? ListResponse.parseLsub(responses) : ListResponse.parseList(responses);
Set<String> folderNames = new HashSet<>(listResponses.size());
for (ListResponse listResponse : listResponses) {
boolean includeFolder = true;
String decodedFolderName;
try {
decodedFolderName = folderNameCodec.decode(listResponse.getName());
} catch (CharacterCodingException e) {
Log.w(
LOG_TAG,
"Folder name not correctly encoded with the UTF-7 variant "
+ "as defined by RFC 3501: "
+ listResponse.getName(),
e);
// TODO: Use the raw name returned by the server for all commands that require
// a folder name. Use the decoded name only for showing it to the user.
// We currently just skip folders with malformed names.
continue;
}
String folder = decodedFolderName;
if (pathDelimiter == null) {
pathDelimiter = listResponse.getHierarchyDelimiter();
combinedPrefix = null;
}
if (folder.equalsIgnoreCase(mStoreConfig.getInboxFolderName())) {
continue;
} else if (folder.equals(mStoreConfig.getOutboxFolderName())) {
/*
* There is a folder on the server with the same name as our local
* outbox. Until we have a good plan to deal with this situation
* we simply ignore the folder on the server.
*/
continue;
} else {
int prefixLength = getCombinedPrefix().length();
if (prefixLength > 0) {
// Strip prefix from the folder name
if (folder.length() >= prefixLength) {
folder = folder.substring(prefixLength);
}
if (!decodedFolderName.equalsIgnoreCase(getCombinedPrefix() + folder)) {
includeFolder = false;
}
}
}
if (listResponse.hasAttribute("\\NoSelect")) {
includeFolder = false;
}
if (includeFolder) {
folderNames.add(folder);
}
}
folderNames.add(mStoreConfig.getInboxFolderName());
return folderNames;
}