-
Notifications
You must be signed in to change notification settings - Fork 1
/
WebDataPoller.java
84 lines (73 loc) · 3.03 KB
/
WebDataPoller.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.Response;
import org.json.JSONArray;
import org.json.JSONObject;
import javax.net.ssl.*;
import java.io.IOException;
import java.security.cert.CertificateException;
public class WebDataPoller extends DataPoller {
/**
* Used when a trusting http client is needed (one that doesn't await certificate from server).
* @return trusting OkHttpClient.
*/
private static OkHttpClient getUnsafeOkHttpClient() {
try {
// Create a trust manager that does not validate certificate chains
final TrustManager[] trustAllCerts = new TrustManager[] {
new X509TrustManager() {
@Override
public void checkClientTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public void checkServerTrusted(java.security.cert.X509Certificate[] chain, String authType) throws CertificateException {
}
@Override
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return new java.security.cert.X509Certificate[]{};
}
}
};
// Install the all-trusting trust manager
final SSLContext sslContext = SSLContext.getInstance("SSL");
sslContext.init(null, trustAllCerts, new java.security.SecureRandom());
// Create an ssl socket factory with our all-trusting manager
final SSLSocketFactory sslSocketFactory = sslContext.getSocketFactory();
OkHttpClient.Builder builder = new OkHttpClient.Builder();
builder.sslSocketFactory(sslSocketFactory, (X509TrustManager)trustAllCerts[0]);
builder.hostnameVerifier(new HostnameVerifier() {
@Override
public boolean verify(String hostname, SSLSession session) {
return true;
}
});
OkHttpClient okHttpClient = builder.build();
return okHttpClient;
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Send request of data retrieval to server.
* @param url the url used to retrieve data.
* @return the reply from the server.
*/
@Override
public String sendRequest(String url) {
OkHttpClient client = getUnsafeOkHttpClient();
Request request = new Request.Builder()
.url(url)
.get()
.build();
try (Response response = client.newCall(request).execute()) {
if (response.body() == null) {
System.out.println("No body in response");
return null;
}
return response.body().string();
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
}