protected boolean connectResumable() throws IOException {
// TODO: endrange pruefen
long[] chunkProgress = downloadLink.getChunksProgress();
String start, end;
start = end = "";
boolean rangeRequested = false;
logger.info("chunksProgress: " + Arrays.toString(chunkProgress));
if (downloadLink.getVerifiedFileSize() > 0) {
start = chunkProgress[0] == 0 ? "0" : (chunkProgress[0] + 1) + "";
end = (getFileSize() / chunkProgress.length) + "";
} else {
start = chunkProgress[0] == 0 ? "0" : (chunkProgress[0] + 1) + "";
end = chunkProgress.length > 1 ? (chunkProgress[1] + 1) + "" : "";
}
if (downloadLink.getVerifiedFileSize() < 0 && start.equals("0")) {
logger.info("rangeless resumable connect");
rangeRequested = false;
request.getHeaders().remove("Range");
} else {
rangeRequested = true;
if (start.equalsIgnoreCase(end)) {
logger.info("WTF, start equals end! Workaround: maybe manipulating the startRange?! it's about time for new downloadcore!");
}
request.getHeaders().put("Range", "bytes=" + start + "-" + end);
}
browser.connect(request);
return rangeRequested;
}
protected void connectFirstRange() throws IOException {
long fileSize = getFileSize();
long part = fileSize / this.getChunkNum();
boolean verifiedSize = downloadLink.getVerifiedFileSize() > 0;
boolean openRangeRequested = false;
if (verifiedSize == false || this.getChunkNum() == 1) {
/* we only request a single range */
openRangeRequested = true;
/* Workaround for server responses != 206 */
if (this.downloadLink.getBooleanProperty("ServerComaptibleForByteRangeRequest", false)) request.getHeaders().put("Range", "bytes=" + (0) + "-");
} else {
/* we request multiple ranges */
openRangeRequested = false;
request.getHeaders().put("Range", "bytes=" + (0) + "-" + (part - 1));
}
browser.connect(request);
if (request.getHttpConnection().getResponseCode() == 416) {
logger.warning("HTTP/1.1 416 Requested Range Not Satisfiable");
if (this.plugin.getBrowser().isDebug()) logger.finest("\r\n" + request.printHeaders());
throw new IllegalStateException("HTTP/1.1 416 Requested Range Not Satisfiable");
} else if (request.getHttpConnection().getRange() == null) {
logger.warning("No Chunkload");
setChunkNum(1);
} else {
long[] range = request.getHttpConnection().getRange();
if (range[0] != 0) {
/* first range MUST start at zero */
throw new IllegalStateException("Range Error. Requested " + request.getHeaders().get("Range") + ". Got range: " + request.getHttpConnection().getHeaderField("Content-Range"));
} else if (verifiedSize && range[1] < (part - 1)) {
/* response range != requested range */
throw new IllegalStateException("Range Error. Requested " + request.getHeaders().get("Range") + " Got range: " + request.getHttpConnection().getHeaderField("Content-Range"));
} else if (!openRangeRequested && range[1] == range[2] - 1 && getChunkNum() > 1) {
logger.warning(" Chunkload Protection.. Requested " + request.getHeaders().get("Range") + " Got range: " + request.getHttpConnection().getHeaderField("Content-Range"));
setChunkNum(1);
} else if (verifiedSize && range[1] > (part - 1)) {
/* response range is bigger than requested range */
if (verifiedSize && range[1] == part) {
logger.severe("Workaround for buggy http server: rangeEND=contentEND, it must be rangeEND-1=contentEND as 0 is first byte!");
return;
}
throw new IllegalStateException("Range Error. Requested " + request.getHeaders().get("Range") + " Got range: " + request.getHttpConnection().getHeaderField("Content-Range"));
}
}
}
/**
*
* @param downloadLink
* downloadlink der geladne werden soll (wird zur darstellung verwendet)
* @param request
* Verbindung die geladen werden soll
* @param b
* Resumefaehige verbindung
* @param i
* max chunks. fuer negative werte wirden die chunks aus der config verwendet. Bsp: -3 : Min(3,Configwert);
* @return
* @throws IOException
* @throws PluginException
*/
public static DownloadInterface download(DownloadLink downloadLink, Request request, boolean b, int i) throws IOException, PluginException {
/* disable gzip, because current downloadsystem cannot handle it correct */
request.getHeaders().put("Accept-Encoding", null);
RAFDownload dl = new RAFDownload(downloadLink.getLivePlugin(), downloadLink, request);
PluginForHost plugin = downloadLink.getLivePlugin();
if (plugin != null) plugin.setDownloadInterface(dl);
if (i == 0) {
dl.setChunkNum(JsonConfig.create(GeneralSettings.class).getMaxChunksPerFile());
} else {
dl.setChunkNum(i < 0 ? Math.min(i * -1, JsonConfig.create(GeneralSettings.class).getMaxChunksPerFile()) : i);
}
dl.setResume(b);
return dl;
}
public URLConnectionAdapter connect() throws Exception {
logger.finer("Connect...");
if (request == null) throw new IllegalStateException("Wrong Mode. Instance is in direct Connection mode");
this.connected = true;
boolean resumed = false;
if (this.isRangeRequestSupported() && this.checkResumabled()) {
/* we can continue to resume the download */
logger.finer(".....connectResumable");
resumed = connectResumable();
} else {
long verifiedFileSize = downloadLink.getVerifiedFileSize();
if (verifiedFileSize > 0 && getChunkNum() > 1) {
/* check if we have to adapt the number of chunks */
int tmp = Math.min(Math.max(1, (int) (verifiedFileSize / RAFChunk.MIN_CHUNKSIZE)), getChunkNum());
if (tmp != getChunkNum()) {
logger.finer("Corrected Chunknum: " + getChunkNum() + " -->" + tmp);
setChunkNum(tmp);
}
}
if (this.isRangeRequestSupported()) {
/* range requests are supported! */
logger.finer(".....connectFirstRange");
connectFirstRange();
} else {
logger.finer(".....connectRangeless");
/* our connection happens rangeless */
request.getHeaders().remove("Range");
/* Workaround for rayfile.com */
if (this.downloadLink.getBooleanProperty("ServerComaptibleForByteRangeRequest", false)) {
if ("rayfile.com".contains(this.downloadLink.getHost())) request.getHeaders().put("Range", "bytes=" + (0) + "-");
}
browser.connect(request);
}
}
if (this.plugin.getBrowser().isDebug()) logger.finest("\r\n" + request.printHeaders());
connection = request.getHttpConnection();
if (request.getLocation() != null) throw new PluginException(LinkStatus.ERROR_DOWNLOAD_FAILED, BrowserAdapter.ERROR_REDIRECTED);
if (connection.getRange() != null) {
/* we have a range response, let's use it */
if (connection.getRange()[2] > 0) {
this.setFilesizeCheck(true);
this.downloadLink.setDownloadSize(connection.getRange()[2]);
}
} else if (resumed == false && connection.getLongContentLength() > 0 && connection.isOK()) {
this.setFilesizeCheck(true);
this.downloadLink.setDownloadSize(connection.getLongContentLength());
}
if (connection.getResponseCode() == 416 && resumed == true && downloadLink.getChunksProgress().length == 1 && downloadLink.getVerifiedFileSize() == downloadLink.getChunksProgress()[0] + 1) {
logger.info("Faking Content-Disposition for already finished downloads");
/* we requested a finished loaded file, got 416 and content-range with * and one chunk only */
/* we fake a content disposition connection so plugins work normal */
if (connection.isContentDisposition() == false) {
List<String> list = new ArrayList<String>();
list.add("fakeContent");
connection.getHeaderFields().put("Content-Disposition", list);
}
List<String> list = new ArrayList<String>();
list.add("application/octet-stream");
connection.getHeaderFields().put("Content-Type", list);
dlAlreadyFinished = true;
}
return connection;
}
