@Override
public void onConfirmInfoBarButtonClicked(ConfirmInfoBar infoBar, boolean confirm) {
if (mPendingRequest.hasDownloadId()) {
nativeDangerousDownloadValidated(mTab, mPendingRequest.getDownloadId(), confirm);
if (confirm) {
showDownloadStartNotification();
}
closeBlankTab();
} else if (confirm) {
// User confirmed the download.
if (mPendingRequest.isGETRequest()) {
enqueueDownloadManagerRequest(mPendingRequest);
} else {
DownloadInfo newDownloadInfo =
DownloadInfo.Builder.fromDownloadInfo(mPendingRequest).setIsSuccessful(true).build();
DownloadManagerService.getDownloadManagerService(mContext)
.onDownloadCompleted(newDownloadInfo);
}
} else {
// User did not accept the download, discard the file if it is a POST download.
if (!mPendingRequest.isGETRequest()) {
discardFile(mPendingRequest.getFilePath());
}
}
mPendingRequest = null;
infoBar.dismissJavaOnlyInfoBar();
}
private void deleteFileForOverwrite(DownloadInfo info) {
File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
if (!dir.isDirectory()) return;
final File file = new File(dir, info.getFileName());
if (!file.delete()) {
Log.e(LOGTAG, "Failed to delete a file." + info.getFileName());
}
}
private static void deleteFileForOverwrite(DownloadInfo info) {
assert !ThreadUtils.runningOnUiThread();
File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
if (!dir.isDirectory()) return;
final File file = new File(dir, info.getFileName());
if (!file.delete()) {
Log.e(TAG, "Failed to delete a file: " + info.getFileName());
}
}
@Override
public void onInfoBarDismissed(InfoBar infoBar) {
if (mPendingRequest != null) {
if (mPendingRequest.hasDownloadId()) {
nativeDangerousDownloadValidated(mTab, mPendingRequest.getDownloadId(), false);
} else if (!mPendingRequest.isGETRequest()) {
// Infobar was dismissed, discard the file if a POST download is pending.
discardFile(mPendingRequest.getFilePath());
}
}
// Forget the pending request.
mPendingRequest = null;
}
@Override
public void onConfirmInfoBarButtonClicked(ConfirmInfoBar infoBar, boolean confirm) {
assert mTab != null;
if (mPendingRequest.hasDownloadId()) {
nativeDangerousDownloadValidated(mTab, mPendingRequest.getDownloadId(), confirm);
if (confirm) {
showDownloadStartNotification();
}
closeBlankTab();
} else if (confirm) {
// User confirmed the download.
if (mPendingRequest.isGETRequest()) {
final DownloadInfo info = mPendingRequest;
new AsyncTask<Void, Void, Pair<String, String>>() {
@Override
protected Pair<String, String> doInBackground(Void... params) {
Pair<String, String> result = getDownloadDirectoryNameAndFullPath();
String fullDirPath = result.second;
return doesFileAlreadyExists(fullDirPath, info.getFileName()) ? result : null;
}
@Override
protected void onPostExecute(Pair<String, String> result) {
if (result != null) {
// File already exists.
String dirName = result.first;
String fullDirPath = result.second;
launchDownloadInfoBar(info, dirName, fullDirPath);
} else {
enqueueDownloadManagerRequest(info);
}
}
}.execute();
} else {
DownloadInfo newDownloadInfo =
DownloadInfo.Builder.fromDownloadInfo(mPendingRequest).setIsSuccessful(true).build();
DownloadManagerService.getDownloadManagerService(mContext)
.onDownloadCompleted(newDownloadInfo);
}
} else {
// User did not accept the download, discard the file if it is a POST download.
if (!mPendingRequest.isGETRequest()) {
discardFile(mPendingRequest.getFilePath());
}
}
mPendingRequest = null;
infoBar.dismissJavaOnlyInfoBar();
}
/**
* Request a download from the given url, or if a streaming viewer is available stream the content
* into the viewer.
*
* @param downloadInfo Information about the download.
*/
@Override
public void requestHttpGetDownload(DownloadInfo downloadInfo) {
// If we're dealing with A/V content that's not explicitly marked for download, check if it
// is streamable.
if (!DownloadManagerService.isAttachment(downloadInfo.getContentDisposition())) {
// Query the package manager to see if there's a registered handler that matches.
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(Uri.parse(downloadInfo.getUrl()), downloadInfo.getMimeType());
// If the intent is resolved to ourselves, we don't want to attempt to load the url
// only to try and download it again.
if (DownloadManagerService.openIntent(mContext, intent, false)) {
return;
}
}
onDownloadStartNoStream(downloadInfo);
}
/**
* Notify the host application a download should be done, even if there is a streaming viewer
* available for this type.
*
* @param downloadInfo Information about the download.
*/
protected void onDownloadStartNoStream(final DownloadInfo downloadInfo) {
final String newMimeType =
remapGenericMimeType(
downloadInfo.getMimeType(), downloadInfo.getUrl(), downloadInfo.getFileName());
final String fileName =
TextUtils.isEmpty(downloadInfo.getFileName())
? fileName(downloadInfo.getUrl(), newMimeType, downloadInfo.getContentDisposition())
: downloadInfo.getFileName();
new AsyncTask<Void, Void, Object[]>() {
@Override
protected Object[] doInBackground(Void... params) {
// Check to see if we have an SDCard.
String status = Environment.getExternalStorageState();
Pair<String, String> result = getDownloadDirectoryNameAndFullPath();
String dirName = result.first;
String fullDirPath = result.second;
boolean fileExists = doesFileAlreadyExists(fullDirPath, fileName);
return new Object[] {status, dirName, fullDirPath, fileExists};
}
@Override
protected void onPostExecute(Object[] result) {
String externalStorageState = (String) result[0];
String dirName = (String) result[1];
String fullDirPath = (String) result[2];
Boolean fileExists = (Boolean) result[3];
if (!checkExternalStorageAndNotify(fileName, fullDirPath, externalStorageState)) {
return;
}
String url = sanitizeDownloadUrl(downloadInfo);
if (url == null) return;
DownloadInfo newInfo =
DownloadInfo.Builder.fromDownloadInfo(downloadInfo)
.setUrl(url)
.setMimeType(newMimeType)
.setDescription(url)
.setFileName(fileName)
.setIsGETRequest(true)
.build();
// TODO(acleung): This is a temp fix to disable auto downloading if flash files.
// We want to avoid downloading flash files when it is linked as an iframe.
// The proper fix would be to let chrome knows which frame originated the request.
if ("application/x-shockwave-flash".equals(newInfo.getMimeType())) return;
if (isDangerousFile(fileName, newMimeType)) {
confirmDangerousDownload(newInfo);
} else {
// Not a dangerous file, proceed.
if (fileExists) {
launchDownloadInfoBar(newInfo, dirName, fullDirPath);
} else {
enqueueDownloadManagerRequest(newInfo);
}
}
}
}.execute();
}
/**
* Launch an info bar if the file name already exists for the download.
*
* @param info The information of the file we are about to download.
* @return Whether an info bar has been launched or not.
*/
private boolean launchInfoBarIfFileExists(final DownloadInfo info) {
// Checks if file exists.
final String fileName = info.getFileName();
File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
if (!dir.mkdir() && !dir.isDirectory()) return false;
String dirName = dir.getName();
final File file = new File(dir, info.getFileName());
String fullDirPath = file.getParent();
if (!file.exists()) return false;
if (TextUtils.isEmpty(fileName)
|| TextUtils.isEmpty(dirName)
|| TextUtils.isEmpty(fullDirPath)) {
return false;
}
nativeLaunchDownloadOverwriteInfoBar(
this, mTab, info, info.getFileName(), dirName, fullDirPath);
return true;
}
/**
* Request user confirmation on a dangerous download.
*
* @param downloadInfo Information about the download.
*/
private void confirmDangerousDownload(DownloadInfo downloadInfo) {
// A Dangerous file is already pending user confirmation, ignore the new download.
if (mPendingRequest != null) return;
mPendingRequest = downloadInfo;
// TODO(dfalcantara): Ask ainslie@ for an icon to use for this InfoBar.
int drawableId = 0;
final String titleText = nativeGetDownloadWarningText(mPendingRequest.getFileName());
final String okButtonText = mContext.getResources().getString(R.string.ok);
final String cancelButtonText = mContext.getResources().getString(R.string.cancel);
mTab.getInfoBarContainer()
.addInfoBar(
new ConfirmInfoBar(
this, drawableId, null, titleText, null, okButtonText, cancelButtonText));
}
/**
* Notify the host application a download should be done, even if there is a streaming viewer
* available for this type.
*
* @param downloadInfo Information about the download.
*/
protected void onDownloadStartNoStream(DownloadInfo downloadInfo) {
final String newMimeType =
remapGenericMimeType(
downloadInfo.getMimeType(), downloadInfo.getUrl(), downloadInfo.getFileName());
final String path =
TextUtils.isEmpty(downloadInfo.getFileName())
? fileName(downloadInfo.getUrl(), newMimeType, downloadInfo.getContentDisposition())
: downloadInfo.getFileName();
final File file = new File(path);
final String fileName = file.getName();
if (!checkExternalStorageAndNotify(downloadPath(fileName))) {
return;
}
String url = sanitizeDownloadUrl(downloadInfo);
if (url == null) return;
DownloadInfo newInfo =
DownloadInfo.Builder.fromDownloadInfo(downloadInfo)
.setUrl(url)
.setMimeType(newMimeType)
.setDescription(url)
.setFileName(fileName)
.setIsGETRequest(true)
.build();
// TODO(acleung): This is a temp fix to disable auto downloading if flash files.
// We want to avoid downloading flash files when it is linked as an iframe.
// The proper fix would be to let chrome knows which frame originated the request.
if ("application/x-shockwave-flash".equals(newInfo.getMimeType())) return;
if (isDangerousFile(fileName, newMimeType)) {
confirmDangerousDownload(newInfo);
} else {
// Not a dangerous file, proceed.
enqueueDownloadManagerRequest(newInfo);
}
}
private void launchDownloadInfoBar(DownloadInfo info, String dirName, String fullDirPath) {
if (mTab == null) return;
nativeLaunchDownloadOverwriteInfoBar(
ChromeDownloadDelegate.this, mTab, info, info.getFileName(), dirName, fullDirPath);
}
/**
* Sanitize the URL for the download item.
*
* @param downloadInfo Information about the download.
*/
protected String sanitizeDownloadUrl(DownloadInfo downloadInfo) {
return downloadInfo.getUrl();
}