1 files changed, 76 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/OkHttpClientFactory.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/OkHttpClientFactory.java
new file mode 100644
index 000000000..ea2ae8368
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/OkHttpClientFactory.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2016 Michał Kępkowski
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.util;
+
+import java.io.IOException;
+import java.net.Proxy;
+import java.net.URL;
+import java.util.concurrent.TimeUnit;
+
+import okhttp3.CertificatePinner;
+import okhttp3.OkHttpClient;
+
+public class OkHttpClientFactory {
+    private static OkHttpClient client;
+
+    public static OkHttpClient getSimpleClient() {
+        if (client == null) {
+            client = new OkHttpClient.Builder()
+                    .connectTimeout(5000, TimeUnit.MILLISECONDS)
+                    .readTimeout(25000, TimeUnit.MILLISECONDS)
+                    .build();
+        }
+        return client;
+    }
+
+    public static OkHttpClient getSimpleClientPinned(CertificatePinner pinner) {
+        return new OkHttpClient.Builder()
+                .connectTimeout(5000, TimeUnit.MILLISECONDS)
+                .readTimeout(25000, TimeUnit.MILLISECONDS)
+                .certificatePinner(pinner)
+                .build();
+    }
+
+    public static OkHttpClient getClientPinnedIfAvailable(URL url, Proxy proxy) throws IOException,
+            TlsHelper.TlsHelperException {
+        OkHttpClient.Builder builder = new OkHttpClient.Builder();
+
+        // don't follow any redirects for keyservers, as discussed in the security audit
+        builder.followRedirects(false)
+                .followSslRedirects(false);
+
+        if (proxy != null) {
+            // set proxy and higher timeouts for Tor
+            builder.proxy(proxy);
+            builder.connectTimeout(30000, TimeUnit.MILLISECONDS)
+                    .readTimeout(45000, TimeUnit.MILLISECONDS);
+        } else {
+            builder.connectTimeout(5000, TimeUnit.MILLISECONDS)
+                    .readTimeout(25000, TimeUnit.MILLISECONDS);
+        }
+
+        // If a pinned cert is available, use it!
+        // NOTE: this fails gracefully back to "no pinning" if no cert is available.
+        if (url != null && TlsHelper.getPinnedSslSocketFactory(url) != null) {
+            builder.sslSocketFactory(TlsHelper.getPinnedSslSocketFactory(url));
+        }
+
+        return builder.build();
+    }
+
+}