Android 自定义加解密播放音视频（m3u8独立加密）伴随源码

/* * Copyright (C) 2016 The Android Open Source Project * * 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. */ package com.like.zza.missit.video; import static com.google.android.exoplayer2.upstream.HttpUtil.buildRangeRequestHeader; import static com.google.android.exoplayer2.util.Assertions.checkNotNull; import static com.google.android.exoplayer2.util.Util.castNonNull; import static java.lang.Math.min; import android.net.Uri; import androidx.annotation.Nullable; import androidx.annotation.VisibleForTesting; import com.google.android.exoplayer2.C; import com.google.android.exoplayer2.PlaybackException; import com.google.android.exoplayer2.upstream.BaseDataSource; import com.google.android.exoplayer2.upstream.DataSource; import com.google.android.exoplayer2.upstream.DataSourceException; import com.google.android.exoplayer2.upstream.DataSpec; import com.google.android.exoplayer2.upstream.DataSpec.HttpMethod; import com.google.android.exoplayer2.upstream.HttpUtil; import com.google.android.exoplayer2.upstream.TransferListener; import com.google.android.exoplayer2.util.Assertions; import com.google.android.exoplayer2.util.Log; import com.google.android.exoplayer2.util.Util; import com.google.common.base.Predicate; import com.google.common.collect.ForwardingMap; import com.google.common.collect.ImmutableMap; import com.google.common.collect.Sets; import com.google.common.net.HttpHeaders; import com.like.zza.missit.utils.HttpDataSource; import java.io.IOException; import java.io.InputStream; import java.io.InterruptedIOException; import java.io.OutputStream; import java.lang.reflect.Method; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.NoRouteToHostException; import java.net.URL; import java.security.InvalidKeyException; import java.security.Key; import java.security.NoSuchAlgorithmException; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Set; import java.util.zip.GZIPInputStream; import javax.crypto.Cipher; import javax.crypto.CipherInputStream; import javax.crypto.NoSuchPaddingException; import javax.crypto.spec.SecretKeySpec; /** * An {@link HttpDataSource} that uses Android's {@link HttpURLConnection}. * * <p>By default this implementation will not follow cross-protocol redirects (i.e. redirects from * HTTP to HTTPS or vice versa). Cross-protocol redirects can be enabled by passing {@code true} to * {@link Factory#setAllowCrossProtocolRedirects(boolean)}. * * <p>Note: HTTP request headers will be set using all parameters passed via (in order of decreasing * priority) the {@code dataSpec}, {@link #setRequestProperty} and the default properties that can * be passed to {@link HttpDataSource.Factory#setDefaultRequestProperties(Map)}. * * @deprecated com.google.android.exoplayer2 is deprecated. Please migrate to androidx.media3 (which * contains the same ExoPlayer code). See <a * href="https://developer.android.com/guide/topics/media/media3/getting-started/migration-guide">the * migration guide</a> for more details, including a script to help with the migration. */ public class DefaultHttpDataSource extends BaseDataSource implements HttpDataSource { /** * {@link DataSource.Factory} for {@link DefaultHttpDataSource} instances. */ public static final class Factory implements HttpDataSource.Factory { private final RequestProperties defaultRequestProperties; @Nullable private TransferListener transferListener; @Nullable private Predicate<String> contentTypePredicate; @Nullable private String userAgent; private int connectTimeoutMs; private int readTimeoutMs; private boolean allowCrossProtocolRedirects; private boolean keepPostFor302Redirects; /** * Creates an instance. */ public Factory() { defaultRequestProperties = new RequestProperties(); connectTimeoutMs = DEFAULT_CONNECT_TIMEOUT_MILLIS; readTimeoutMs = DEFAULT_READ_TIMEOUT_MILLIS; } @Override public final Factory setDefaultRequestProperties(Map<String, String> defaultRequestProperties) { this.defaultRequestProperties.clearAndSet(defaultRequestProperties); return this; } /** * Sets the user agent that will be used. * * <p>The default is {@code null}, which causes the default user agent of the underlying * platform to be used. * * @param userAgent The user agent that will be used, or {@code null} to use the default user * agent of the underlying platform. * @return This factory. */ public Factory setUserAgent(@Nullable String userAgent) { this.userAgent = userAgent; return this; } /** * Sets the connect timeout, in milliseconds. * * <p>The default is {@link DefaultHttpDataSource#DEFAULT_CONNECT_TIMEOUT_MILLIS}. * * @param connectTimeoutMs The connect timeout, in milliseconds, that will be used. * @return This factory. */ public Factory setConnectTimeoutMs(int connectTimeoutMs) { this.connectTimeoutMs = connectTimeoutMs; return this; } /** * Sets the read timeout, in milliseconds. * * <p>The default is {@link DefaultHttpDataSource#DEFAULT_READ_TIMEOUT_MILLIS}. * * @param readTimeoutMs The connect timeout, in milliseconds, that will be used. * @return This factory. */ public Factory setReadTimeoutMs(int readTimeoutMs) { this.readTimeoutMs = readTimeoutMs; return this; } /** * Sets whether to allow cross protocol redirects. * * <p>The default is {@code false}. * * @param allowCrossProtocolRedirects Whether to allow cross protocol redirects. * @return This factory. */ public Factory setAllowCrossProtocolRedirects(boolean allowCrossProtocolRedirects) { this.allowCrossProtocolRedirects = allowCrossProtocolRedirects; return this; } /** * Sets a content type {@link Predicate}. If a content type is rejected by the predicate then a * {@link InvalidContentTypeException} is thrown from {@link * DefaultHttpDataSource#open(DataSpec)}. * * <p>The default is {@code null}. * * @param contentTypePredicate The content type {@link Predicate}, or {@code null} to clear a * predicate that was previously set. * @return This factory. */ public Factory setContentTypePredicate(@Nullable Predicate<String> contentTypePredicate) { this.contentTypePredicate = contentTypePredicate; return this; } /** * Sets the {@link TransferListener} that will be used. * * <p>The default is {@code null}. * * <p>See {@link DataSource#addTransferListener(TransferListener)}. * * @param transferListener The listener that will be used. * @return This factory. */ public Factory setTransferListener(@Nullable TransferListener transferListener) { this.transferListener = tr