mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-16 16:16:40 +03:00
Jacob Trimble
575f2ad109
This adds a severity field to Error objects. This can be used to detect whether an error is recoverable. All the same errors are still reported so the field can be ignored. There are two possible values: * RECOVERABLE means that the Player will try to recover from the error * CRITICAL means the Player will be unable to continue and must call load() again Closes #564 Change-Id: Ie2c5468340c13e7a288b99690ab65b7ecc0a6b29
111 lines
3.2 KiB
JavaScript
111 lines
3.2 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.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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* @return {!Promise.<shakaExtern.Response>}
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* @export
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*/
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shaka.net.DataUriPlugin = function(uri, request) {
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return new Promise(function(resolve, reject) {
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var parsed = shaka.net.DataUriPlugin.parse(uri);
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/** @type {shakaExtern.Response} */
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var 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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resolve(response);
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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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var 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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var path = parts.slice(1).join(':');
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// Extract the encoding and MIME type (required but can be empty).
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var 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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var info = infoAndData[0];
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var dataStr = window.decodeURIComponent(infoAndData.slice(1).join(','));
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// Extract the encoding (optional).
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var typeAndEncoding = info.split(';');
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var encoding = null;
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if (typeAndEncoding.length > 1)
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encoding = typeAndEncoding[1];
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// Convert the data.
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/** @type {ArrayBuffer} */
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var 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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