Android 8.1 Unable to create application data 问题分析

崩溃堆栈

复制代码

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java.lang.RuntimeException:javax.net.ssl.SSLException: Unable to create application data
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com.android.org.conscrypt.ConscryptFileDescriptorSocket.newSsl(ConscryptFileDescriptorSocket.java:161)
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......
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Caused by:
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javax.net.ssl.SSLException:Unable to create application data
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com.android.org.conscrypt.NativeCrypto.SSL_new(Native Method)
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com.android.org.conscrypt.SslWrapper.newInstance(SslWrapper.java:58)
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com.android.org.conscrypt.ConscryptFileDescriptorSocket.newSsl(ConscryptFileDescriptorSocket.java:159)
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com.android.org.conscrypt.ConscryptFileDescriptorSocket.<init>(ConscryptFileDescriptorSocket.java:152)
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com.android.org.conscrypt.OpenSSLSocketFactoryImpl.createSocket(OpenSSLSocketFactoryImpl.java:155)
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okhttp3.internal.connection.RealConnection.void connectTls(okhttp3.internal.connection.ConnectionSpecSelector)(RealConnection.java:369)
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okhttp3.internal.connection.RealConnection.void establishProtocol(okhttp3.internal.connection.ConnectionSpecSelector,int,okhttp3.Call,okhttp3.EventListener)(RealConnection.java:337)
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okhttp3.internal.connection.RealConnection.void connect(int,int,int,int,boolean,okhttp3.Call,okhttp3.EventListener)(RealConnection.java:209)
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okhttp3.internal.connection.ExchangeFinder.okhttp3.internal.connection.RealConnection findConnection(int,int,int,int,boolean)(ExchangeFinder.java:226)
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okhttp3.internal.connection.ExchangeFinder.okhttp3.internal.connection.RealConnection findHealthyConnection(int,int,int,int,boolean,boolean)(ExchangeFinder.java:106)
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okhttp3.internal.connection.ExchangeFinder.okhttp3.internal.http.ExchangeCodec find(okhttp3.OkHttpClient,okhttp3.internal.http.RealInterceptorChain)(ExchangeFinder.java:74)
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okhttp3.internal.connection.RealCall.okhttp3.internal.connection.Exchange initExchange$okhttp(okhttp3.internal.http.RealInterceptorChain)(RealCall.java:255)
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okhttp3.internal.connection.ConnectInterceptor.okhttp3.Response intercept(okhttp3.Interceptor$Chain)(ConnectInterceptor.java:32)
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okhttp3.internal.http.RealInterceptorChain.okhttp3.Response proceed(okhttp3.Request)(RealInterceptorChain.java:109)
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okhttp3.internal.cache.CacheInterceptor.okhttp3.Response intercept(okhttp3.Interceptor$Chain)(CacheInterceptor.java:95)
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okhttp3.internal.http.RealInterceptorChain.okhttp3.Response proceed(okhttp3.Request)(RealInterceptorChain.java:109)
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okhttp3.internal.http.BridgeInterceptor.okhttp3.Response intercept(okhttp3.Interceptor$Chain)(BridgeInterceptor.java:83)
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okhttp3.internal.http.RealInterceptorChain.okhttp3.Response proceed(okhttp3.Request)(RealInterceptorChain.java:109)
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okhttp3.internal.http.RetryAndFollowUpInterceptor.okhttp3.Response intercept(okhttp3.Interceptor$Chain)(RetryAndFollowUpInterceptor.java:76)
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okhttp3.internal.http.RealInterceptorChain.okhttp3.Response proceed(okhttp3.Request)(RealInterceptorChain.java:109)
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okhttp3.logging.HttpLoggingInterceptor.okhttp3.Response intercept(okhttp3.Interceptor$Chain)(HttpLoggingInterceptor.java:219)
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okhttp3.internal.http.RealInterceptorChain.okhttp3.Response proceed(okhttp3.Request)(RealInterceptorChain.java:109)
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okhttp3.internal.connection.RealCall.okhttp3.Response getResponseWithInterceptorChain$okhttp()(RealCall.java:201)
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okhttp3.internal.connection.RealCall$AsyncCall.void run()(RealCall.java:517)
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java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162)
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java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636)
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java.lang.Thread.run(Thread.java:784)

分析

看安卓8.1的源码，ConscryptFileDescriptorSocket创建SslWrapper，所有SSL异常都被封装成了运行时异常，导致在拦截器里执行时无法catch直接崩溃：

https://android.googlesource.com/platform/external/conscrypt/+/refs/tags/android-8.1.0_r12/common/src/main/java/org/conscrypt/ConscryptFileDescriptorSocket.java

java 复制代码

    private static SslWrapper newSsl(SSLParametersImpl sslParameters,
            ConscryptFileDescriptorSocket engine) {
        try {
            return SslWrapper.newInstance(sslParameters, engine, engine, engine);
        } catch (SSLException e) {
            throw new RuntimeException(e);
        }
    }

SslWrapper实例化涉及NativeCrypto，依赖C++代码：

https://android.googlesource.com/platform/external/conscrypt/+/refs/tags/android-8.1.0_r12/common/src/main/java/org/conscrypt/SslWrapper.java

java 复制代码

    static SslWrapper newInstance(SSLParametersImpl parameters,
            SSLHandshakeCallbacks handshakeCallbacks, AliasChooser chooser,
            PSKCallbacks pskCallbacks) throws SSLException {
        long ctx = parameters.getSessionContext().sslCtxNativePointer;
        long ssl = NativeCrypto.SSL_new(ctx);
        return new SslWrapper(ssl, parameters, handshakeCallbacks, chooser, pskCallbacks);
    }

新版本：

https://android.googlesource.com/platform/external/conscrypt/+/refs/tags/android-cts-9.0_r18/common/src/main/java/org/conscrypt/ConscryptFileDescriptorSocket.java

java 复制代码

    private static NativeSsl newSsl(SSLParametersImpl sslParameters,
            ConscryptFileDescriptorSocket engine) throws SSLException {
        return NativeSsl.newInstance(sslParameters, engine, engine, engine);
    }

可用的修复方案

https://stackoverflow.com/questions/55143564/anr-and-crash-in-an-android-app-android-8-1-90-huawei-devices

方案中直接依赖了:

java 复制代码

implementation 'org.conscrypt:conscrypt-android:2.5.2'

启动时初始化：

java 复制代码

if (Build.VERSION.SDK_INT == Build.VERSION_CODES.O_MR1) {
    Security.insertProviderAt(Conscrypt.newProvider(), 1);
    Log.e("sslProvider", SSLSocketFactory.getDefault()::class.java.getName())
}

方案会引入新的so，三个架构so总共7.75m，平均一个2.5m，修复这个bug的代价是安装包总体变大。

然而这个crash对crash率贡献量较小，有点不划算。