Publish Vulpes Preview 15 sources for desktop, Android and Tundra
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
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gaia/apps/fl/js/download.js
Executable file
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gaia/apps/fl/js/download.js
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/*
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* This is an implementation of the OMA Download specification:
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* http://technical.openmobilealliance.org/Technical/release_program/docs/Download/V1_0-20040625-A/OMA-Download-OTA-V1_0-20040625-A.pdf
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*
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* It downloads and installs locked wallpaper, ringtones and songs
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* roughly following these steps:
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*
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* 1) Download a download descriptor from the specified URL
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* - onerror: display a message to the user and abort the activity
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*
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* 2) Validate and parse the download descriptor
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* - extract all the required and optional tags from the descriptor document
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* - if it doesn't contain the tags we expect, display an error message
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* and abort the activity.
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* - if the version number is wrong, display an error, report the failure,
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* and abort the activity.
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*
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* 3) Check types
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* - If we can't handle any of the types specified in the descriptor,
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* report a failure to the server, display an error to the user and abort.
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* - For audio files, ask the user if they want to use them as a ringtone
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* or as a song
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*
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* 4) Confirm download and use of media
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* - Display name, vendor, type, size, etc. to the user, remind them
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* that the content will be locked (and that they may be charged for
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* it) and ask them to confirm that they want to download.
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* - If the user cancels, report that to the server and abort the activity.
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*
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* 5) Download content
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* - Display a progress meter and cancel button
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* - If the user clicks cancel, report to server and abort the activity.
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*
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* 6) Extract the content, if necessary
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* - If the content type is a DRM message, then it is in multi-part
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* MIME format and we have to extract the first part, using the boundary
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* string from the response headers.
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* - If extracting the content fails, notify the server and user and abort
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*
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* 7) Allow the user to preview the downloaded files
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* - if the file cannot be loaded or played, abort with an error
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* - otherwise, show a small image, or play part of the audio
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* to the user and allow them to click Cancel or Install.
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*
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* 8) Install the content
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* - For wallpapers and ringtones, save to the database
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* - For music, encrypt the file and save to device storage
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* - If this fails, report errors and abort
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* - Report success to the server
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* - For ringtones and wallpaper, set them as the default
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*/
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'use strict';
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/* global
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_,
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$,
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BinaryStringView,
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debug,
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DOWNLOAD_ERROR,
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ERR_BAD_AUDIO,
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ERR_BAD_DESCRIPTOR,
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ERR_BAD_DRM_MESSAGE,
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ERR_BAD_IMAGE,
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ERR_BAD_TYPE,
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ERR_CONTENT_DOWNLOAD_FAILED,
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ERR_DS_SAVE_FAILURE,
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ERR_DB_STORE_FAILURE,
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ERR_DESCRIPTOR_DOWNLOAD_FAILED,
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ERR_NO_SDCARD,
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ERR_NO_SPACE,
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ERR_SDCARD_IN_USE,
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ERR_TOO_BIG,
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ERR_UNSUPPORTED_TYPE,
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ForwardLock,
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getStorageIfAvailable,
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getUnusedFilename,
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INSTALL_ERROR,
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MAX_DOWNLOAD_SIZE,
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MediaUtils,
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MimeTypeAliases,
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objectStore,
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OMADownloadStatus,
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RINGTONE,
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RINGTONE_KEY,
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RINGTONE_NAME_KEY,
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RINGTONE_ID_KEY,
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showDialog,
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SONG,
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SUCCESS_RINGTONE,
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SUCCESS_SONG,
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SUCCESS_WALLPAPER,
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SupportedAudioTypes,
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SupportedImageTypes,
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systemXHR,
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WALLPAPER,
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WALLPAPER_KEY
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*/
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// Wait until we're loaded, localized, and get an activity request
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window.addEventListener('load', function() {
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navigator.mozL10n.once(function() {
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navigator.mozSetMessageHandler('activity', view);
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});
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});
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//
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// This function is invoked with:
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//
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// * a view activity for MIME type application/vnd.oma.dd+xml and
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// activity.source.data.url set to the url of the download descriptor ".dd"
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// file.
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//
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// or
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//
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// * a view activity for MIME type application/vnd.oma.drm.message and
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// activity.source.data.url set to the url of the download ".dm" file.
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//
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function view(activity) {
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debug('view() invoked for activity', activity.source.name,
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'with data', JSON.stringify(activity.source.data));
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var descriptor = {}; // The parsed form of the download descriptor
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var mimeType; // Set by checkType() to the primary media type
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var isImage = false; // These are also set by checkType()
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var isAudio = false;
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var installType; // Wallpaper, ringtone or song.
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var hasDescriptor; // To acommodate direct download without a descriptor
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//We start the proccess
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// First a little bit of cleanup. Sometimes we get a content-type like
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// Content-type: a/type; boundary=somethingelse
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// And we don't really want anything after the ;
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var activityType = normalizeMimeType(activity.source.data.type);
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if (activityType === 'application/vnd.oma.drm.message') {
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hasDescriptor = false;
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var url = (activity.source.data.url || '');
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descriptor.name = getFileNameFromURL(url);
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descriptor.size = 0;
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descriptor.types = ['application/vnd.oma.drm.message'];
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descriptor.objectURI = url;
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displayDownloadProgress();
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} else {
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hasDescriptor = true;
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// We start by downloading the url passed with the activity request
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downloadDescriptor(activity.source.data.url);
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}
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// We call this function on all mime type values we read from .dm or .dd
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// files or we get in XHR headers. This strips off trailing parameters,
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// converts to lower case, and fixes incorrect types (like audio/mp3).
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function normalizeMimeType(type) {
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// Strip off any mime type parameters
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type = type.split(';')[0];
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// convert to lower case
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type = type.toLowerCase();
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// Map bad types like "audio/mp3" to the correct type like "audio/mpeg"
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if (type in MimeTypeAliases) {
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type = MimeTypeAliases[type];
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}
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return type;
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}
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function askSongOrRingtone(aCallback) {
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showDialog({
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message: _('ringtone-or-song-question'),
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okText: _('ringtone-response'),
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cancelText: _('song-response'),
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okCallback: aCallback.bind(undefined, RINGTONE),
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cancelCallback: aCallback.bind(undefined, SONG)
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});
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}
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function getFileNameFromURL(aUri) {
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var name = '';
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if (aUri) {
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name = aUri.split('/').pop();
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// Slice off the .dm suffix
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if (name.endsWith('.dm')) {
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name = name.slice(0, -3);
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}
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if (name.length > 18) {
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name = name.substring(0, 15) + '\u2026';
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}
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}
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return name;
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}
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// Gets the filename from a header.
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function getFileNameFromHeader(aHeader) {
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// This is not exactly RFC compliant since it will cut
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// quoted-strings with quoted-pairs by the first "
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var regexp = /filename="([^"]*)"/i;
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var match = regexp.exec(aHeader);
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var name = match && match[1];
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if (name) {
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name = getFileNameFromURL(name);
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}
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return name;
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}
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function reportError(type, errorID, downloadStatus, details) {
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// Report to the console
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console.error(type, errorID, downloadStatus, details);
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// Report to the server, if necessary
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if (downloadStatus) {
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sendStatus(downloadStatus);
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}
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details = '[' + (details ? errorID + ': ' + details : errorID) + ']';
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// Display error to the user
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showDialog({
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title: _(type) || type,
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message: _(errorID),
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details: details,
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okCallback: function() {
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// Cancel the activity after the user has seen the error message.
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activity.postError(errorID);
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}
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});
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}
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function reportSuccess(successID) {
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// This is a "well-intentioned attempt" to send the success code.
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sendStatus(OMADownloadStatus.success);
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showDialog({
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message: _(successID) || successID,
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okCallback: function() {
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// Return from the activity after the user has seen the error message.
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activity.postResult({ success: true });
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}
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});
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}
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function sendStatus(status, callback) {
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// If the descriptor contained an installNotifyURI, then we need to
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// report errors by posting to that URL
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if (descriptor.installNotifyURI) {
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var xhr = new XMLHttpRequest(systemXHR);
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xhr.open('POST', descriptor.installNotifyURI);
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xhr.timeout = 1000; // wait up to a second for a response
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xhr.send(status);
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// If there is a callback, call it on success, error or timeout
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if (callback) {
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xhr.onloadend = function() { callback(); };
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}
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} else if (callback) {
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callback();
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}
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}
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// Step 1: download the download descriptor
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function downloadDescriptor(descriptorURL) {
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debug('Step 1: downloading descriptor from', descriptorURL);
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var xhr = new XMLHttpRequest(systemXHR);
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xhr.open('GET', descriptorURL);
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xhr.responseType = 'document'; // Parse it as an XML document
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xhr.send();
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xhr.onerror = function(e) {
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reportError(DOWNLOAD_ERROR, ERR_DESCRIPTOR_DOWNLOAD_FAILED, null,
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xhr.status + ' ' + xhr.statusText);
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};
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xhr.onload = function() {
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// When we get the descriptor, go to step 2
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// The setTimeout() may not be necessary here. The intent is to ensure
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// that this XHR is complete before we begin downloading the .dm file.
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setTimeout(function() {
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parse(xhr.response);
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});
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};
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}
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// Step 2: Parse and validate the download descriptor document
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//
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// The format of the download descriptor is defined in
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// http://technical.openmobilealliance.org/Technical/release_program/docs/
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// Download/V1_0-20040625-A/OMA-Download-OTA-V1_0-20040625-A.pdf
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//
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function parse(document) {
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// Get all the types listed for this content
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var types = document.getElementsByTagName('type');
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if (types) {
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descriptor.types = [];
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for (var i = 0; i < types.length; i++) {
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descriptor.types.push(normalizeMimeType(types[i].textContent.trim()));
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}
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}
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// A utility function for parsing the rest of the descriptor
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function get(tag) {
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var elts = document.getElementsByTagName(tag);
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if (elts && elts.length) {
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descriptor[tag] = elts[0].textContent.trim();
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}
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}
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// Get the other properties, ignoring nextURL, infoURL, iconURI,
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// and installParam (which are all optional)
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get('size');
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get('objectURI');
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get('installNotifyURI');
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get('DDVersion');
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get('name');
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get('description');
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get('vendor');
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debug('Step 2: parse descriptor:', JSON.stringify(descriptor));
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// If any of the required attributes are missing, then report an error
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if (!descriptor.types || descriptor.types.length === 0 ||
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!descriptor.size || !descriptor.objectURI) {
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reportError(DOWNLOAD_ERROR, ERR_BAD_DESCRIPTOR,
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OMADownloadStatus.INVALID_DESCRIPTOR);
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return;
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}
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// If the size is too big, just abort now so we don't run out of
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// memory when we download the .dm file later
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if (descriptor.size > MAX_DOWNLOAD_SIZE) {
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MediaUtils.getLocalizedSize(descriptor.size).then((msg) => {
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reportError(DOWNLOAD_ERROR, ERR_TOO_BIG,
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OMADownloadStatus.INSUFFICIENT_MEMORY,
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msg);
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});
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return;
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}
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// If the descriptor did not include a name, derive one from the URL
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if (!descriptor.name) {
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descriptor.name = getFileNameFromURL(descriptor.objectURI);
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}
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// If the version number is too large, abort
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if (descriptor.DDVersion && parseInt(descriptor.DDVersion) > 1) {
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reportError(DOWNLOAD_ERROR, ERR_BAD_DESCRIPTOR,
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OMADownloadStatus.INVALID_DDVERSION);
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return;
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}
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// Otherwise, move on to step 3
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checkTypes();
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}
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// Step 3: check that we can handle the types listed in the download
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// descriptor and abort with an error if we can't
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function checkTypes() {
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debug('Step 3: check types');
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var types = descriptor.types;
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for (var i = 0; i < types.length; i++) {
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var type = types[i];
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if (type === 'application/vnd.oma.drm.message') {
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// This type just indicates that the download will be a multi-part
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// MIME message body rather than the content directly.
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// We support it.
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continue;
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}
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mimeType = type;
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if (type in SupportedImageTypes) {
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isImage = true;
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} else if (type in SupportedAudioTypes) {
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isAudio = true;
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} else {
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mimeType = undefined;
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reportError(DOWNLOAD_ERROR, ERR_UNSUPPORTED_TYPE,
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OMADownloadStatus.NON_ACCEPTABLE_CONTENT,
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type);
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return;
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}
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}
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// We expect one media type plus one option DRM message ".dm" MIME
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// type. If we didn't see a media type at all, that is an
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// error. And if we had more than two types, then the content is
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// some kind of composite thing that we don't know how to handle.
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if (types.length < 1 || types.length > 2 || // wrong number of types
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(isAudio && isImage) || // both audio and image
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(!isAudio && !isImage)) { // neither audio nor image
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reportError(DOWNLOAD_ERROR, ERR_BAD_TYPE,
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OMADownloadStatus.NON_ACCEPTABLE_CONTENT);
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return;
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}
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// If this is an image, then we know we're downloading wallpaper
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// and can move on to the confirmation screen. For audio, we need
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// to ask the user if they want a ringtone or a song
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if (isImage) {
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installType = WALLPAPER;
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confirmDownload();
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} else {
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askSongOrRingtone(function(response) {
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installType = response;
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confirmDownload();
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});
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}
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}
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// Step 4: Let the user confirm or cancel the download
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function confirmDownload() {
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debug('Step 4: confirm download');
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// Customize the dialog title based on the installType
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var titleElement = $('download-confirmation-title');
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titleElement.textContent = _('download-confirmation-title-' + installType);
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// Display details from the descriptor
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$('download-confirmation-name').textContent = descriptor.name;
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$('download-confirmation-type').textContent = mimeType;
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MediaUtils.getLocalizedSizeTokens(descriptor.size).then((args) => {
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navigator.mozL10n.setAttributes(
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$('download-confirmation-size'), 'fileSize', args);
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});
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// XXX: this might be too big to fit on the screen.
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$('download-confirmation-description').textContent = descriptor.description;
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// Display the Locked Content Advisory
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var lca;
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if (descriptor.vendor) {
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lca = _('locked-content-advisory', {
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vendor: descriptor.vendor
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});
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} else {
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lca = _('locked-content-advisory-generic');
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}
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$('locked-content-advisory-text').textContent = lca;
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// Hook up the Download button: if the user clicks it, go on to step 5
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$('download-confirm').onclick = function(e) {
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e.target.disabled = true; // Don't let the user click twice
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displayDownloadProgress();
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};
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// Hook up the Cancel button: if the user clicks it, report this to
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// the server and abort without displaying an error message to the user.
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$('download-cancel').onclick = function(e) {
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debug('download cancelled');
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$('download-confirmation').hidden = true;
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sendStatus(OMADownloadStatus.USER_CANCELLED, function() {
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activity.postError('cancelled');
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});
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};
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// Finally, make the confirmation screen visible
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$('download-confirmation').hidden = false;
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}
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// Step 5: download the content and display progress
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function displayDownloadProgress() {
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debug('Step 5: download content and display progress');
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var bar;
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var contentLength;
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if (!hasDescriptor) {
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$('direct-download').hidden = false;
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bar = $('direct-download-progress');
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// We might get or not the Content-Length header. We defer the max size
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// setting until the first progress call.
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bar.max = 100;
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} else {
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// Change the dialog title from Download? to Downloading...
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var titleElement = $('download-confirmation-title');
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titleElement.textContent = _('downloading-' + installType);
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$('download-confirmation').hidden = false;
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bar = $('download-progress');
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bar.max = descriptor.size;
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}
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bar.style.visibility = 'visible';
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bar.value = 0;
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debug('starting download for', descriptor.objectURI);
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||||
|
||||
|
||||
var download = new XMLHttpRequest(systemXHR);
|
||||
download.open('GET', descriptor.objectURI);
|
||||
download.responseType = 'arraybuffer';
|
||||
download.send();
|
||||
|
||||
download.onprogress = function(e) {
|
||||
if (contentLength === undefined) {
|
||||
contentLength = download.getResponseHeader('Content-Length');
|
||||
bar.max = contentLength && parseInt(contentLength) || bar.max;
|
||||
}
|
||||
|
||||
if (descriptor.size || contentLength) {
|
||||
bar.value = e.loaded;
|
||||
} else {
|
||||
// We didn't get a download size, let's just do a percent increase
|
||||
bar.value = (bar.value + 10) % bar.max;
|
||||
}
|
||||
};
|
||||
|
||||
// XXX This onerror function is being called with status 0 and statusText OK
|
||||
// It only happens sometimes. A caching thing? A bug in gecko?
|
||||
// There is no response body when this happends
|
||||
download.onerror = function() {
|
||||
$('download-confirmation').hidden = true;
|
||||
reportError(DOWNLOAD_ERROR, ERR_CONTENT_DOWNLOAD_FAILED,
|
||||
OMADownloadStatus.LOADER_ERROR,
|
||||
download.status + ' ' + download.statusText);
|
||||
};
|
||||
|
||||
download.onload = function() {
|
||||
// We're done downloading, so we can't cancel it anymore
|
||||
$('download-cancel').disabled = true;
|
||||
$('download-confirmation').hidden = true;
|
||||
|
||||
var cdHeader =
|
||||
download.getResponseHeader('Content-Disposition');
|
||||
|
||||
if (cdHeader && !hasDescriptor) {
|
||||
descriptor.name = getFileNameFromHeader(cdHeader) || descriptor.name;
|
||||
}
|
||||
|
||||
// Move on to step 6
|
||||
var type = normalizeMimeType(download.getResponseHeader('Content-Type'));
|
||||
extractContent(type, download.response);
|
||||
};
|
||||
|
||||
// Add another cancel button handler to abort the download if the
|
||||
// user clicks cancel
|
||||
$('download-cancel').addEventListener('click', function() {
|
||||
download.abort();
|
||||
});
|
||||
}
|
||||
|
||||
// Step 6: extract the downloaded content from the array buffer
|
||||
function extractContent(type, buffer) {
|
||||
debug('Step 6a: extractContent', type, buffer.byteLength);
|
||||
|
||||
if (type !== 'application/vnd.oma.drm.message') {
|
||||
// In this case, we already have the content and don't need to
|
||||
// extract anything. Move on to step 7
|
||||
previewContent(type, buffer);
|
||||
return;
|
||||
}
|
||||
|
||||
// View the array buffer as if it was a binary string
|
||||
var dataString = new BinaryStringView(buffer);
|
||||
|
||||
// If we're here, then dataString is a multipart message with a
|
||||
// boundary string at the start and end. There should be only one part
|
||||
// but we still must strip off the separators and extract the real
|
||||
// content type. The type argument should specify the boundary string
|
||||
// but in practice it seems like it doesn't so we find it by examining
|
||||
// the end of the string.
|
||||
|
||||
// Make sure there are no trailing newlines
|
||||
dataString = dataString.trim();
|
||||
|
||||
function malformed(why) {
|
||||
if (why) {
|
||||
debug('malformed drm message:', why);
|
||||
}
|
||||
reportError(DOWNLOAD_ERROR, ERR_BAD_DRM_MESSAGE,
|
||||
OMADownloadStatus.ATTRIBUTE_MISMATCH);
|
||||
}
|
||||
|
||||
// The last two characters should be "--". If they are not, then
|
||||
// the content is malformed
|
||||
if (dataString.slice(-2).toString() !== '--') {
|
||||
return malformed('missing trailing --');
|
||||
}
|
||||
|
||||
// Find the last newline.
|
||||
var end = dataString.lastIndexOf('\r\n');
|
||||
if (end === -1) {
|
||||
return malformed('missing final \r\n');
|
||||
}
|
||||
|
||||
// The boundary string begins right after that newline
|
||||
var boundaryString = dataString.slice(end + 2, -2).toString() + '\r\n';
|
||||
dataString = dataString.slice(0, end);
|
||||
|
||||
debug('Boundary string is', boundaryString);
|
||||
|
||||
// The first occurance of the boundary string is the start of
|
||||
// the content headers
|
||||
var headerStart =
|
||||
dataString.indexOf(boundaryString) + boundaryString.length;
|
||||
if (headerStart === -1) {
|
||||
return malformed('missing boundary string at start');
|
||||
}
|
||||
|
||||
// If there are any more occurrances of the boundary string then
|
||||
// this is probably a .dm object for "combined delivery" and we
|
||||
// must reject it since we support only forward lock.
|
||||
if (dataString.indexOf(boundaryString, headerStart) !== -1) {
|
||||
return malformed('more than one part');
|
||||
}
|
||||
|
||||
var contentStart = dataString.indexOf('\r\n\r\n', headerStart);
|
||||
if (contentStart === -1) {
|
||||
return malformed('missing header separator');
|
||||
}
|
||||
|
||||
var headers = dataString.slice(headerStart,
|
||||
contentStart).toString().split('\r\n');
|
||||
var content = dataString.slice(contentStart + 4);
|
||||
|
||||
debug('got first part headers:', JSON.stringify(headers));
|
||||
|
||||
// find the content-type header for the content
|
||||
var contentType;
|
||||
for (var i = 0; i < headers.length; i++) {
|
||||
var header = headers[i].toLowerCase();
|
||||
if (header.startsWith('content-type:')) {
|
||||
contentType = normalizeMimeType(header.substring(13).trim());
|
||||
}
|
||||
}
|
||||
|
||||
if (!contentType) {
|
||||
return malformed('no content-type header found in first part');
|
||||
}
|
||||
|
||||
debug('Found content in drm message file', contentType, content.length);
|
||||
previewContent(contentType, content.toArrayBuffer());
|
||||
}
|
||||
|
||||
// Step 7
|
||||
function previewContent(type, bytes) {
|
||||
if (!hasDescriptor) {
|
||||
mimeType = type;
|
||||
if (type in SupportedImageTypes) {
|
||||
isImage = true;
|
||||
} else if (type in SupportedAudioTypes) {
|
||||
isAudio = true;
|
||||
} else {
|
||||
mimeType = undefined;
|
||||
reportError(DOWNLOAD_ERROR, ERR_UNSUPPORTED_TYPE,
|
||||
OMADownloadStatus.NON_ACCEPTABLE_CONTENT,
|
||||
type);
|
||||
return;
|
||||
}
|
||||
} else {
|
||||
// If the content we found in the DRM message (.dm) file has a different
|
||||
// Content-Type than what we were expecting based on the .dd file
|
||||
// report an error.
|
||||
if (type !== mimeType) {
|
||||
reportError(DOWNLOAD_ERROR, ERR_BAD_DRM_MESSAGE,
|
||||
OMADownloadStatus.ATTRIBUTE_MISMATCH);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
if (isImage) {
|
||||
installType = WALLPAPER;
|
||||
previewImage(type, bytes);
|
||||
} else {
|
||||
if (!hasDescriptor) {
|
||||
askSongOrRingtone(function(response) {
|
||||
installType = response;
|
||||
previewAudio(type, bytes);
|
||||
});
|
||||
} else {
|
||||
// We already asked how to install the audio before
|
||||
// downloading
|
||||
previewAudio(type, bytes);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
function previewImage(type, bytes) {
|
||||
// Hide the confirmation screen and show the preview screen
|
||||
$('download-confirmation').hidden = true;
|
||||
$('preview-image-screen').hidden = false;
|
||||
|
||||
// Load the image into an off-screen image
|
||||
var blob = new Blob([bytes], { type: type });
|
||||
var url = URL.createObjectURL(blob);
|
||||
var image = new Image();
|
||||
image.src = url;
|
||||
|
||||
// If we can't load the image, abort with an error
|
||||
image.onerror = function() {
|
||||
URL.revokeObjectURL(url);
|
||||
reportError(INSTALL_ERROR, ERR_BAD_IMAGE,
|
||||
OMADownloadStatus.NON_ACCEPTABLE_CONTENT);
|
||||
return;
|
||||
};
|
||||
|
||||
// If the image loads successfully, use it as the background image
|
||||
// for the preview. And enable the install button
|
||||
image.onload = function() {
|
||||
var preview = $('preview-image');
|
||||
preview.style.backgroundImage = 'url(' + url + ')';
|
||||
$('preview-image-install').disabled = false;
|
||||
};
|
||||
|
||||
// If the user clicks Install, move on to step 8
|
||||
$('preview-image-install').onclick = function() {
|
||||
URL.revokeObjectURL(url);
|
||||
installContent(bytes);
|
||||
};
|
||||
|
||||
// If the user clicks cancel, return to the browser without installing
|
||||
$('preview-image-cancel').onclick = function() {
|
||||
URL.revokeObjectURL(url);
|
||||
sendStatus(OMADownloadStatus.USER_CANCELLED, function() {
|
||||
activity.postError('cancelled');
|
||||
});
|
||||
};
|
||||
}
|
||||
|
||||
function previewAudio(type, bytes) {
|
||||
// Hide the confirmation screen and show the preview screen
|
||||
$('download-confirmation').hidden = true;
|
||||
$('preview-audio-screen').hidden = false;
|
||||
|
||||
// Create a blob and a blob: url that we can play
|
||||
var blob = new Blob([bytes], { type: type });
|
||||
var url = URL.createObjectURL(blob);
|
||||
|
||||
var player = $('preview-audio');
|
||||
player.src = url;
|
||||
|
||||
// If we can't play the audio, abort with an error
|
||||
player.onerror = function() {
|
||||
cleanup();
|
||||
reportError(INSTALL_ERROR,
|
||||
ERR_BAD_AUDIO, OMADownloadStatus.NON_ACCEPTABLE_CONTENT);
|
||||
return;
|
||||
};
|
||||
|
||||
// If we can play the music, enable the Install button
|
||||
player.oncanplay = function() {
|
||||
$('preview-audio-install').disabled = false;
|
||||
};
|
||||
|
||||
// Don't allow the user to play more than 50% of the audio, or
|
||||
// 5 seconds, whichever is longer
|
||||
player.ontimeupdate = player.ondurationchange = function() {
|
||||
if (player.currentTime > Math.max(5, player.duration / 2)) {
|
||||
player.pause();
|
||||
player.currentTime = 0;
|
||||
}
|
||||
};
|
||||
|
||||
// If the user clicks Install, move on to step 8
|
||||
$('preview-audio-install').onclick = function() {
|
||||
cleanup();
|
||||
installContent(bytes);
|
||||
};
|
||||
|
||||
// If the user clicks cancel, return to the browser without installing
|
||||
$('preview-audio-cancel').onclick = function() {
|
||||
cleanup();
|
||||
sendStatus(OMADownloadStatus.USER_CANCELLED, function() {
|
||||
activity.postError('cancelled');
|
||||
});
|
||||
};
|
||||
|
||||
function cleanup() {
|
||||
player.pause();
|
||||
player.removeAttribute('src');
|
||||
player.load();
|
||||
URL.revokeObjectURL(url);
|
||||
}
|
||||
}
|
||||
|
||||
// Step 8
|
||||
function installContent(bytes) {
|
||||
switch (installType) {
|
||||
case SONG:
|
||||
installSong(bytes);
|
||||
return;
|
||||
case RINGTONE:
|
||||
case WALLPAPER:
|
||||
install(installType, bytes, descriptor);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
function installSong(buffer) {
|
||||
debug('installSong');
|
||||
ForwardLock.getOrCreateKey(function(secret) {
|
||||
debug('got secret key');
|
||||
var blob = ForwardLock.lockBuffer(secret, buffer, mimeType, {
|
||||
vendor: descriptor.vendor,
|
||||
name: descriptor.name,
|
||||
description: descriptor.description
|
||||
});
|
||||
debug('encrypted song');
|
||||
|
||||
getStorageIfAvailable('music', blob.size,
|
||||
storageSuccess, storageError);
|
||||
|
||||
function storageError(err) {
|
||||
debug('storageError:', err);
|
||||
if (err === 'unavailable') {
|
||||
reportError(INSTALL_ERROR, ERR_NO_SDCARD,
|
||||
OMADownloadStatus.INSUFFICIENT_MEMORY);
|
||||
} else if (err === 'shared') {
|
||||
reportError(INSTALL_ERROR, ERR_SDCARD_IN_USE,
|
||||
OMADownloadStatus.INSUFFICIENT_MEMORY);
|
||||
} else {
|
||||
reportError(INSTALL_ERROR, ERR_NO_SPACE,
|
||||
OMADownloadStatus.INSUFFICIENT_MEMORY, err);
|
||||
}
|
||||
}
|
||||
|
||||
function storageSuccess(storage) {
|
||||
debug('got music storage');
|
||||
var filename = 'locked/';
|
||||
if (descriptor.vendor) {
|
||||
filename += fixPath(descriptor.vendor) + '/';
|
||||
}
|
||||
filename += fixPath(descriptor.name) + '.lcka';
|
||||
debug('trying filename', filename);
|
||||
|
||||
// Remove characters in s that might be significant in a filename
|
||||
function fixPath(s) { return s.replace(/[\/\\\.\,\?\*\:]/g, ''); }
|
||||
|
||||
getUnusedFilename(storage, filename, function(filename) {
|
||||
debug('using filename', filename);
|
||||
var addreq = storage.addNamed(blob, filename);
|
||||
|
||||
addreq.onerror = function() {
|
||||
// We don't expect this to fail, since we've already checked
|
||||
// available storage space.
|
||||
reportError(INSTALL_ERROR, ERR_DS_SAVE_FAILURE,
|
||||
OMADownloadStatus.LOADER_ERROR,
|
||||
addreq.error.name);
|
||||
};
|
||||
|
||||
addreq.onsuccess = function() {
|
||||
// The song is installed and ready to be played, so
|
||||
// send a success notification, tell the user that the
|
||||
// song was installed and return to the invoking application.
|
||||
reportSuccess(SUCCESS_SONG);
|
||||
};
|
||||
});
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
function install(installType, buffer, descriptor) {
|
||||
// We don't need the secret key here, but we need to create one
|
||||
// if it doesn't already exist
|
||||
ForwardLock.getOrCreateKey();
|
||||
|
||||
var objectStoreName = installType === RINGTONE ? 'ringtones' : 'wallpapers';
|
||||
|
||||
var blob = new Blob([buffer], { type: mimeType });
|
||||
objectStore.readwrite(objectStoreName, function(store) {
|
||||
var req = store.add({ blob: blob, descriptor: descriptor });
|
||||
|
||||
req.onerror = function() {
|
||||
reportError(INSTALL_ERROR, ERR_DB_STORE_FAILURE,
|
||||
OMADownloadStatus.LOADER_ERROR,
|
||||
req.error.name);
|
||||
};
|
||||
|
||||
req.onsuccess = function() {
|
||||
// Report that we've successfully saved the media.
|
||||
sendStatus(OMADownloadStatus.SUCCESS);
|
||||
|
||||
// Install this blob as the default ringtone or wallpaper
|
||||
// We assume that if the user is downloading this media they
|
||||
// want to use it right away. Otherwise we could put a checkbox
|
||||
// on the confirmation screen.
|
||||
var lock = navigator.mozSettings.createLock();
|
||||
var settings = {};
|
||||
if (installType === RINGTONE) {
|
||||
settings[RINGTONE_KEY] = blob;
|
||||
settings[RINGTONE_NAME_KEY] = descriptor.name;
|
||||
settings[RINGTONE_ID_KEY] = req.result;
|
||||
}
|
||||
else {
|
||||
settings[WALLPAPER_KEY] = blob;
|
||||
}
|
||||
|
||||
lock.set(settings).onsuccess = function() {
|
||||
var msgid;
|
||||
if (installType === RINGTONE) {
|
||||
msgid = SUCCESS_RINGTONE;
|
||||
} else {
|
||||
msgid = SUCCESS_WALLPAPER;
|
||||
}
|
||||
|
||||
showDialog({
|
||||
message: _(msgid),
|
||||
okCallback: function() {
|
||||
// Return from the activity after the user has seen the message.
|
||||
activity.postResult({ success: true });
|
||||
}
|
||||
});
|
||||
};
|
||||
};
|
||||
});
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in a new issue