Android Https证书过期的两种解决方案
应该有很多小伙伴遇到这样一个问题,在线上已发布的app里,关于https的cer证书过期,从而导致app所有网络请求失效无法使用。
这个时候有人就要说了,应急发布一个已更新最新cer证书的apk不就完事了么,其实没那么简单,iOS还好可以通过appstore提供的api查询到新版本,但android就不一样了,需要调用自己Server端提供的api接口查询到新版本,并获取apk下载路径,问题是https都不能访问了,如何请求到版本信息呢?下面提供两种常见的解决方案:
方案一
将版本信息接口让后台改成http(不推荐,后台因素不可控),或者将本地https的设置一个不安全校验(推荐)。
private static OkHttpClient newOkHttpClient(int timeout){ HttpLoggingInterceptor logging = new HttpLoggingInterceptor(); logging.setLevel(HttpLoggingInterceptor.Level.BODY); return new OkHttpClient.Builder() .addInterceptor(new RequestInfoInterceptor()) //.addInterceptor(logging) .addNetworkInterceptor(new TokenHeaderInterceptor()) .sslSocketFactory(Certificate.getSSLSocketFactory()) //设置不安全校验 .hostnameVerifier(Certificate.getUnSafeHostnameVerifier()) .readTimeout(timeout, TimeUnit.SECONDS) .writeTimeout(timeout, TimeUnit.SECONDS) .build(); } /** *获取HostnameVerifier */ public static HostnameVerifier getUnSafeHostnameVerifier() { HostnameVerifier hostnameVerifier = new HostnameVerifier() { @Override public boolean verify(String s, SSLSession sslSession) { return true; } }; return hostnameVerifier; }
方案二
将xxx.cer证书改成动态读取(以文件的方式从app沙盒里面读取即可),在https证书即将过期时,从服务器下载最新的cer证书更新到沙盒里面,App每次初始化网络请求时读取sdcard最新的证书文件,这样App就永远不会出现https证书过期导致无法使用的问题,流程图如下。
下面是一些关键的代码:
private static OkHttpClient newOkHttpClient(int timeout){ HttpLoggingInterceptor logging = new HttpLoggingInterceptor(); logging.setLevel(HttpLoggingInterceptor.Level.BODY); return new OkHttpClient.Builder() .addInterceptor(new RequestInfoInterceptor()) //.addInterceptor(logging) .addNetworkInterceptor(new TokenHeaderInterceptor()) .sslSocketFactory(Certificate.getSSLSocketFactory(BaseApplcation.myApp, new String[]{"/sdcard/xxx.cer"})) .hostnameVerifier(Certificate.getUnSafeHostnameVerifier()) .readTimeout(timeout, TimeUnit.SECONDS) .writeTimeout(timeout, TimeUnit.SECONDS) .build(); } /** * 带证书的,从本地文件读取 * @param context * @param certificatesFiles 本地文件(通过下载到本地) * @return */ public static SSLSocketFactory getSSLSocketFactory(Context context, String[] certificatesFiles) { if (context == null) { throw new NullPointerException("context == null"); } CertificateFactory certificateFactory; try { certificateFactory = CertificateFactory.getInstance("X.509"); KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType()); keyStore.load(null, null); for (int i = 0; i < certificatesFiles.length; i++) { InputStream certificate = new FileInputStream(certificatesFiles[i]); keyStore.setCertificateEntry(String.valueOf(i), certificateFactory.generateCertificate(certificate)); if (certificate != null) { certificate.close(); } } SSLContext sslContext = SSLContext.getInstance("TLS"); TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); trustManagerFactory.init(keyStore); sslContext.init(null, trustManagerFactory.getTrustManagers(), new SecureRandom()); return sslContext.getSocketFactory(); } catch (Exception e) { } return null; } /** * 带证书的,从raw资源中读取 * @param context * @param certificates rawIds * @return */ public static SSLSocketFactory getSSLSocketFactory(Context context, int[] certificates) { if (context == null) { throw new NullPointerException("context == null"); } CertificateFactory certificateFactory; try { certificateFactory = CertificateFactory.getInstance("X.509"); KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType()); keyStore.load(null, null); for (int i = 0; i < certificates.length; i++) { InputStream certificate = context.getResources().openRawResource(certificates[i]); keyStore.setCertificateEntry(String.valueOf(i), certificateFactory.generateCertificate(certificate)); if (certificate != null) { certificate.close(); } } SSLContext sslContext = SSLContext.getInstance("TLS"); TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm()); trustManagerFactory.init(keyStore); sslContext.init(null, trustManagerFactory.getTrustManagers(), new SecureRandom()); return sslContext.getSocketFactory(); } catch (Exception e) { } return null; }
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