mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-16 16:16:40 +03:00
Jacob Trimble
624acc66b8
Google style guide requires adding curly braces to all block statements even if it is only has one line. This fixes it by using eslint's --fix flag followed by running clang-format to reformat the change. Change-Id: Idc086c2aa8c02df5ef8b2140a11bfb9128eeb4bd
116 lines
3.5 KiB
JavaScript
116 lines
3.5 KiB
JavaScript
/**
|
|
* @license
|
|
* Copyright 2016 Google Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
goog.provide('shaka.net.DataUriPlugin');
|
|
|
|
goog.require('shaka.log');
|
|
goog.require('shaka.net.NetworkingEngine');
|
|
goog.require('shaka.util.AbortableOperation');
|
|
goog.require('shaka.util.Error');
|
|
goog.require('shaka.util.StringUtils');
|
|
goog.require('shaka.util.Uint8ArrayUtils');
|
|
|
|
|
|
/**
|
|
* @namespace
|
|
* @summary A networking plugin to handle data URIs.
|
|
* @see https://developer.mozilla.org/en-US/docs/Web/HTTP/data_URIs
|
|
* @param {string} uri
|
|
* @param {shakaExtern.Request} request
|
|
* @param {shaka.net.NetworkingEngine.RequestType=} requestType
|
|
* @return {!shakaExtern.IAbortableOperation.<shakaExtern.Response>}
|
|
* @export
|
|
*/
|
|
shaka.net.DataUriPlugin = function(uri, request, requestType) {
|
|
try {
|
|
let parsed = shaka.net.DataUriPlugin.parse(uri);
|
|
|
|
/** @type {shakaExtern.Response} */
|
|
let response = {
|
|
uri: uri,
|
|
data: parsed.data,
|
|
headers: {
|
|
'content-type': parsed.contentType
|
|
}
|
|
};
|
|
|
|
return shaka.util.AbortableOperation.completed(response);
|
|
} catch (error) {
|
|
return shaka.util.AbortableOperation.failed(error);
|
|
}
|
|
};
|
|
|
|
|
|
/**
|
|
* @param {string} uri
|
|
* @return {{data: ArrayBuffer, contentType: string}}
|
|
*/
|
|
shaka.net.DataUriPlugin.parse = function(uri) {
|
|
// Extract the scheme.
|
|
let parts = uri.split(':');
|
|
if (parts.length < 2 || parts[0] != 'data') {
|
|
shaka.log.error('Bad data URI, failed to parse scheme');
|
|
throw new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.NETWORK,
|
|
shaka.util.Error.Code.MALFORMED_DATA_URI,
|
|
uri);
|
|
}
|
|
let path = parts.slice(1).join(':');
|
|
|
|
// Extract the encoding and MIME type (required but can be empty).
|
|
let infoAndData = path.split(',');
|
|
if (infoAndData.length < 2) {
|
|
shaka.log.error('Bad data URI, failed to extract encoding and MIME type');
|
|
throw new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.NETWORK,
|
|
shaka.util.Error.Code.MALFORMED_DATA_URI,
|
|
uri);
|
|
}
|
|
let info = infoAndData[0];
|
|
let dataStr = window.decodeURIComponent(infoAndData.slice(1).join(','));
|
|
|
|
// Extract the encoding (optional).
|
|
let typeAndEncoding = info.split(';');
|
|
let encoding = null;
|
|
if (typeAndEncoding.length > 1) {
|
|
encoding = typeAndEncoding[1];
|
|
}
|
|
|
|
// Convert the data.
|
|
/** @type {ArrayBuffer} */
|
|
let data;
|
|
if (encoding == 'base64') {
|
|
data = shaka.util.Uint8ArrayUtils.fromBase64(dataStr).buffer;
|
|
} else if (encoding) {
|
|
shaka.log.error('Bad data URI, unknown encoding');
|
|
throw new shaka.util.Error(
|
|
shaka.util.Error.Severity.CRITICAL,
|
|
shaka.util.Error.Category.NETWORK,
|
|
shaka.util.Error.Code.UNKNOWN_DATA_URI_ENCODING,
|
|
uri);
|
|
} else {
|
|
data = shaka.util.StringUtils.toUTF8(dataStr);
|
|
}
|
|
|
|
return {data: data, contentType: typeAndEncoding[0]};
|
|
};
|
|
|
|
|
|
shaka.net.NetworkingEngine.registerScheme('data', shaka.net.DataUriPlugin);
|