1 files changed, 29 insertions, 0 deletions
diff --git a/app/src/main/kotlin/com/pitchedapps/frost/facebook/retro/FrostInterceptor.kt b/app/src/main/kotlin/com/pitchedapps/frost/facebook/retro/FrostInterceptor.kt
new file mode 100644
index 00000000..f745aedf
--- /dev/null
+++ b/app/src/main/kotlin/com/pitchedapps/frost/facebook/retro/FrostInterceptor.kt
@@ -0,0 +1,29 @@
+package com.pitchedapps.frost.facebook.retro
+
+import android.content.Context
+import com.pitchedapps.frost.facebook.token
+import com.pitchedapps.frost.utils.Utils
+import okhttp3.Interceptor
+import okhttp3.Response
+
+/**
+ * Created by Allan Wang on 2017-05-30.
+ */
+private val maxStale = 60 * 60 * 24 * 28 //maxAge to get from cache if online (4 weeks)
+const val ACCESS_TOKEN = "access_token"
+
+class FrostInterceptor(val context: Context) : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response? {
+        val request = chain.request()
+        val requestBuilder = request.newBuilder()
+        val urlBase = request.url()
+        val urlWithToken = urlBase.newBuilder()
+        if (urlBase.queryParameter(ACCESS_TOKEN) == null && token != null)
+            urlWithToken.addQueryParameter(ACCESS_TOKEN, token)
+        requestBuilder.url(urlWithToken.build())
+        if (!Utils.isNetworkAvailable(context)) requestBuilder.addHeader("Cache-Control", "public, only-if-cached, max-stale=" + maxStale)
+        return chain.proceed(requestBuilder.build())
+    }
+
+}
+\ No newline at end of file