update ssl.

examcloud-core-print-common/src/main/java/cn/com/qmth/examcloud/core/print/common/utils/FileUtils.java

@@ -8,13 +8,19 @@
 package cn.com.qmth.examcloud.core.print.common.utils;
 
 import org.apache.commons.io.IOUtils;
+import org.apache.http.ssl.SSLContextBuilder;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.SSLContext;
 import java.io.*;
-import java.net.MalformedURLException;
+import java.net.HttpURLConnection;
 import java.net.URL;
 import java.nio.charset.Charset;
+import java.security.KeyManagementException;
+import java.security.KeyStoreException;
+import java.security.NoSuchAlgorithmException;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.UUID;
@@ -173,14 +179,66 @@ public class FileUtils {
 
     public static void saveURLToFile(String link, File file) {
         if (link == null || file == null) {
-            // ignore
+            log.warn("link or file must be not null.");
             return;
         }
+
+        if (link.startsWith("https")) {
+            saveHttpsURLToFile(link, file);
+            return;
+        }
+
         try {
             URL url = new URL(link);
             org.apache.commons.io.FileUtils.copyURLToFile(url, file);
-        } catch (MalformedURLException e) {
+        } catch (Exception e) {
+            log.error(e.getMessage(), e);
+        }
+    }
+
+    private static void saveHttpsURLToFile(String link, File file) {
+        SSLContext sslContext = null;
+        try {
+            //System.setProperty ("jsse.enableSNIExtension", "false");
+            sslContext = new SSLContextBuilder().loadTrustMaterial(null, (chain, authType) -> true).build();
+        } catch (NoSuchAlgorithmException e) {
+            log.error(e.getMessage(), e);
+        } catch (KeyStoreException e) {
+            log.error(e.getMessage(), e);
+        } catch (KeyManagementException e) {
+            log.error(e.getMessage(), e);
+        }
+
+        if (sslContext == null) {
+            log.warn("http sslContext must be not null.");
+            return;
+        }
+
+        HttpsURLConnection connection;
+        try {
+            URL url = new URL(link);
+            HttpsURLConnection.setDefaultSSLSocketFactory(sslContext.getSocketFactory());
+            connection = (HttpsURLConnection) url.openConnection();
+            connection.setConnectTimeout(15000);
+            connection.setReadTimeout(15000);
+
+            if (HttpURLConnection.HTTP_OK != connection.getResponseCode()) {
+                log.warn("http connection response fail." + connection.getResponseMessage());
+                return;
+            }
+        } catch (Exception e) {
             log.error(e.getMessage(), e);
+            return;
+        }
+
+        //响应成功
+        try (DataInputStream in = new DataInputStream(connection.getInputStream());
+             DataOutputStream out = new DataOutputStream(new FileOutputStream(file));) {
+            byte[] bytes = new byte[1024];
+            int len;
+            while ((len = in.read(bytes)) > 0) {
+                out.write(bytes, 0, len);
+            }
         } catch (IOException e) {
             log.error(e.getMessage(), e);
         }