public static final HTTPStream createHTTPStream(
String address,
boolean isPost,
byte[] postData,
String headers,
int timeOutMs,
int[] statusCode,
StringBuffer responseHeaders,
int numRedirectsToFollow) {
// timeout parameter of zero for HttpUrlConnection is a blocking connect (negative value for
// juce::URL)
if (timeOutMs < 0) timeOutMs = 0;
else if (timeOutMs == 0) timeOutMs = 30000;
// headers - if not empty, this string is appended onto the headers that are used for the
// request. It must therefore be a valid set of HTML header directives, separated by newlines.
// So convert headers string to an array, with an element for each line
String headerLines[] = headers.split("\\n");
for (; ; ) {
try {
HttpURLConnection connection = (HttpURLConnection) (new URL(address).openConnection());
if (connection != null) {
try {
connection.setInstanceFollowRedirects(false);
connection.setConnectTimeout(timeOutMs);
connection.setReadTimeout(timeOutMs);
// Set request headers
for (int i = 0; i < headerLines.length; ++i) {
int pos = headerLines[i].indexOf(":");
if (pos > 0 && pos < headerLines[i].length()) {
String field = headerLines[i].substring(0, pos);
String value = headerLines[i].substring(pos + 1);
if (value.length() > 0) connection.setRequestProperty(field, value);
}
}
if (isPost) {
connection.setRequestMethod("POST");
connection.setDoOutput(true);
if (postData != null) {
OutputStream out = connection.getOutputStream();
out.write(postData);
out.flush();
}
}
HTTPStream httpStream = new HTTPStream(connection, statusCode, responseHeaders);
// Process redirect & continue as necessary
int status = statusCode[0];
if (--numRedirectsToFollow >= 0
&& (status == 301 || status == 302 || status == 303 || status == 307)) {
// Assumes only one occurrence of "Location"
int pos1 = responseHeaders.indexOf("Location:") + 10;
int pos2 = responseHeaders.indexOf("\n", pos1);
if (pos2 > pos1) {
String newLocation = responseHeaders.substring(pos1, pos2);
// Handle newLocation whether it's absolute or relative
URL baseUrl = new URL(address);
URL newUrl = new URL(baseUrl, newLocation);
String transformedNewLocation = newUrl.toString();
if (transformedNewLocation != address) {
address = transformedNewLocation;
// Clear responseHeaders before next iteration
responseHeaders.delete(0, responseHeaders.length());
continue;
}
}
}
return httpStream;
} catch (Throwable e) {
connection.disconnect();
}
}
} catch (Throwable e) {
}
return null;
}
}
protected Boolean doInBackground(ArrayList... params) {
download_photos.this.runOnUiThread(
new Runnable() {
public void run() {
mtext.setText(
getText(R.string.download_textview_message_1) + " " + path.toString() + ". ");
}
});
if (resume_file.exists()) {
initial_value = readProgress()[0];
} else {
initial_value = 1;
}
for (int i = initial_value - 1; i < links.size(); i++) {
// asynctask expects more than one ArrayList<String> item, but we are sending only one,
// which is params[0]
Uri imageuri = Uri.parse(params[0].get(i).toString());
URL imageurl = null;
HttpURLConnection connection = null;
total_files_to_download = links.size();
completed_downloads = i + 1;
try {
imageurl = new URL(params[0].get(i).toString());
connection = (HttpURLConnection) imageurl.openConnection();
connection.connect();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// extracts the real file name of the photo from url
path_segments = imageuri.getPathSegments();
int total_segments = path_segments.size();
file_name = path_segments.get(total_segments - 1);
path.mkdirs();
// if(i==0)
// first_image = path.toString() + "/" + file_name;
InputStream input;
OutputStream output;
try {
input = new BufferedInputStream(imageurl.openStream());
fully_qualified_file_name = new File(path, file_name);
output = new BufferedOutputStream(new FileOutputStream(fully_qualified_file_name));
byte data[] = new byte[1024];
int count;
while ((count = input.read(data)) != -1) {
output.write(data, 0, count);
}
output.flush();
output.close();
input.close();
connection.disconnect();
new folder_scanner(getApplicationContext(), fully_qualified_file_name);
publishProgress(completed_downloads, total_files_to_download);
if (this.isCancelled()) {
writeProgress(completed_downloads, total_files_to_download);
break;
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
// creates required folders and subfolders if they do not exist already
// boolean success = path.mkdirs();
// makes request to download photos
// DownloadManager.Request request = new DownloadManager.Request(imageuri);
// set path for downloads
// request.setDestinationInExternalPublicDir(Environment.DIRECTORY_PICTURES,sub_path);
// request.setDescription("Downloaded using Facebook Album Downloader");
// DownloadManager dm = (DownloadManager)getSystemService(DOWNLOAD_SERVICE);
// download is enqueue in download list. it returns unique id for each download
// download_id = dm.enqueue(request);
}
// returns the unique id. we are not using this id
return true;
}