我有一个自签名服务器硬编码端口 52428。我的客户端应用程序不断收到“主机名未验证”，即使我重写 HostNameVerifier 以始终返回 true。当我将主机名从 IP 地址更改为 DNS 时，弹出另一个错误消息“无法解析主机:没有与主机名关联的地址”
这是我的代码:
private class SSLConnect extends AsyncTask<Void, Void, String> {
@Override
protected String doInBackground(Void... values) {
//String https_url = "https://www.google.com/";
//String https_url = "https://192.168.0.106:52428/webserveradmin/preferences";
String https_url = "https://home-pc:52428/webserveradmin/preferences/";
String response;
try {
TrustManager[] tm = new TrustManager[]{
new X509TrustManager() {
@Override
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public X509Certificate[] getAcceptedIssuers() {
//return new X509Certificate[0];
return null;
}
}
};
URL url;
try {
url = new URL(https_url);
}
catch (MalformedURLException e) {
return "Error URL: " + e.getMessage();
}
HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
try {
conn.setDefaultHostnameVerifier(new NullHostNameVerifier());
SSLContext sc = SSLContext.getInstance("SSL");
sc.init(null, tm, new SecureRandom());
conn.setSSLSocketFactory(sc.getSocketFactory());
conn.setRequestMethod("GET");
conn.setRequestProperty("Authorization", "Basic " + Base64.encode("sa:sa".getBytes(), Base64.DEFAULT));
conn.connect();
InputStream in = conn.getInputStream();
BufferedReader r = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line;
while ((line = r.readLine()) != null) {
sb.append(line);
}
response = sb.toString();
} catch (GeneralSecurityException e) {
return "Error Security: " + e.getMessage();
}
}
catch(Exception e){
return "Error SSL: " + e.getMessage();
}
return response;
}
@Override
protected void onProgressUpdate(Void... values) {
}
@Override
protected void onPostExecute(String result) {
Toast.makeText(ctxt, result, Toast.LENGTH_LONG).show();
}
}
public class NullHostNameVerifier implements HostnameVerifier{
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
}
最佳答案
主机名 validator 只关心验证主机名，而不关心信任链。但是对于自签名证书，您没有通向本地受信任证书的信任链。
除此之外，只是禁用证书检查是一个非常糟糕的主意，因为这样你不仅会接受你的自签名证书，还会接受任何证书，因此你将对人开放-中间攻击。另见 SSL Vulnerability in ******** VU#582497 . 要正确执行此操作，请改用证书/公钥固定。有关更详细的说明和示例代码，请参阅 OWSAP .
关于java - Android SSL 主机名未验证，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/27671168/