@Override
protected void listRemote() throws IOException, HttpException, DavException {
// fetch list of remote VCards and build hash table to index file name
try {
davAddressBook().addressbookQuery();
} catch (HttpException e) {
/* non-successful responses to CARDDAV:addressbook-query with empty filter, tested on 2015/10/21
* fastmail.com 403 Forbidden (DAV:error CARDDAV:supported-filter)
* mailbox.org (OpenXchange) 400 Bad Request
* SOGo 207 Multi-status, but without entries http://www.sogo.nu/bugs/view.php?id=3370
* Zimbra ZCS 500 Server Error https://bugzilla.zimbra.com/show_bug.cgi?id=101902
*/
if (e.status == 400 || e.status == 403 || e.status == 500 || e.status == 501) {
App.log.log(
Level.WARNING, "Server error on REPORT addressbook-query, falling back to PROPFIND", e);
davAddressBook().propfind(1, GetETag.NAME);
} else
// no defined fallback, pass through exception
throw e;
}
remoteResources = new HashMap<>(davCollection.members.size());
for (DavResource vCard : davCollection.members) {
String fileName = vCard.fileName();
App.log.fine("Found remote VCard: " + fileName);
remoteResources.put(fileName, vCard);
}
}
@Override
protected void downloadRemote()
throws IOException, HttpException, DavException, ContactsStorageException {
App.log.info("Downloading " + toDownload.size() + " contacts (" + MAX_MULTIGET + " at once)");
// prepare downloader which may be used to download external resource like contact photos
Contact.Downloader downloader = new ResourceDownloader(collectionURL);
// download new/updated VCards from server
for (DavResource[] bunch :
ArrayUtils.partition(
toDownload.toArray(new DavResource[toDownload.size()]), MAX_MULTIGET)) {
if (Thread.interrupted()) return;
App.log.info("Downloading " + StringUtils.join(bunch, ", "));
if (bunch.length == 1) {
// only one contact, use GET
DavResource remote = bunch[0];
ResponseBody body =
remote.get("text/vcard;version=4.0, text/vcard;charset=utf-8;q=0.8, text/vcard;q=0.5");
String eTag = ((GetETag) remote.properties.get(GetETag.NAME)).eTag;
Charset charset = Charsets.UTF_8;
MediaType contentType = body.contentType();
if (contentType != null) charset = contentType.charset(Charsets.UTF_8);
@Cleanup InputStream stream = body.byteStream();
processVCard(remote.fileName(), eTag, stream, charset, downloader);
} else {
// multiple contacts, use multi-get
List<HttpUrl> urls = new LinkedList<>();
for (DavResource remote : bunch) urls.add(remote.location);
davAddressBook().multiget(urls.toArray(new HttpUrl[urls.size()]), hasVCard4);
// process multiget results
for (DavResource remote : davCollection.members) {
String eTag;
GetETag getETag = (GetETag) remote.properties.get(GetETag.NAME);
if (getETag != null) eTag = getETag.eTag;
else throw new DavException("Received multi-get response without ETag");
Charset charset = Charsets.UTF_8;
GetContentType getContentType =
(GetContentType) remote.properties.get(GetContentType.NAME);
if (getContentType != null && getContentType.type != null) {
MediaType type = MediaType.parse(getContentType.type);
if (type != null) charset = type.charset(Charsets.UTF_8);
}
AddressData addressData = (AddressData) remote.properties.get(AddressData.NAME);
if (addressData == null || addressData.vCard == null)
throw new DavException("Received multi-get response without address data");
@Cleanup InputStream stream = new ByteArrayInputStream(addressData.vCard.getBytes());
processVCard(remote.fileName(), eTag, stream, charset, downloader);
}
}
}
}