mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-15 16:06:41 +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
/**
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* @license
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* Copyright 2016 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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goog.provide('shaka.net.DataUriPlugin');
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goog.require('shaka.log');
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goog.require('shaka.net.NetworkingEngine');
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goog.require('shaka.util.AbortableOperation');
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goog.require('shaka.util.Error');
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goog.require('shaka.util.StringUtils');
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goog.require('shaka.util.Uint8ArrayUtils');
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/**
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* @namespace
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* @summary A networking plugin to handle data URIs.
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* @see https://developer.mozilla.org/en-US/docs/Web/HTTP/data_URIs
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* @param {string} uri
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* @param {shakaExtern.Request} request
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* @param {shaka.net.NetworkingEngine.RequestType=} requestType
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* @return {!shakaExtern.IAbortableOperation.<shakaExtern.Response>}
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* @export
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*/
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shaka.net.DataUriPlugin = function(uri, request, requestType) {
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try {
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let parsed = shaka.net.DataUriPlugin.parse(uri);
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/** @type {shakaExtern.Response} */
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let response = {
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uri: uri,
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data: parsed.data,
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headers: {
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'content-type': parsed.contentType
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}
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};
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return shaka.util.AbortableOperation.completed(response);
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} catch (error) {
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return shaka.util.AbortableOperation.failed(error);
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}
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};
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/**
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* @param {string} uri
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* @return {{data: ArrayBuffer, contentType: string}}
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*/
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shaka.net.DataUriPlugin.parse = function(uri) {
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// Extract the scheme.
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let parts = uri.split(':');
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if (parts.length < 2 || parts[0] != 'data') {
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shaka.log.error('Bad data URI, failed to parse scheme');
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throw new shaka.util.Error(
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shaka.util.Error.Severity.CRITICAL,
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shaka.util.Error.Category.NETWORK,
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shaka.util.Error.Code.MALFORMED_DATA_URI,
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uri);
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}
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let path = parts.slice(1).join(':');
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// Extract the encoding and MIME type (required but can be empty).
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let infoAndData = path.split(',');
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if (infoAndData.length < 2) {
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shaka.log.error('Bad data URI, failed to extract encoding and MIME type');
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throw new shaka.util.Error(
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shaka.util.Error.Severity.CRITICAL,
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shaka.util.Error.Category.NETWORK,
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shaka.util.Error.Code.MALFORMED_DATA_URI,
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uri);
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}
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let info = infoAndData[0];
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let dataStr = window.decodeURIComponent(infoAndData.slice(1).join(','));
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// Extract the encoding (optional).
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let typeAndEncoding = info.split(';');
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let encoding = null;
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if (typeAndEncoding.length > 1) {
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encoding = typeAndEncoding[1];
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}
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// Convert the data.
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/** @type {ArrayBuffer} */
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let data;
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if (encoding == 'base64') {
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data = shaka.util.Uint8ArrayUtils.fromBase64(dataStr).buffer;
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} else if (encoding) {
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shaka.log.error('Bad data URI, unknown encoding');
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throw new shaka.util.Error(
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shaka.util.Error.Severity.CRITICAL,
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shaka.util.Error.Category.NETWORK,
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shaka.util.Error.Code.UNKNOWN_DATA_URI_ENCODING,
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uri);
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} else {
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data = shaka.util.StringUtils.toUTF8(dataStr);
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}
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return {data: data, contentType: typeAndEncoding[0]};
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};
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shaka.net.NetworkingEngine.registerScheme('data', shaka.net.DataUriPlugin);
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