Add param forceSAM=true when targeting sam endpoint (#56)

# Description

All sam call need to have the param `forceSAM=true` to ensure call are
retrieved from SAM and not proxied through IL.

# Changes made:

- Add `HostInterceptor` to add param `forceSAM=true` to all calls made
to sam end points (prod, stage, test).

dataprovider-retrofit/src/main/java/ch/srg/dataProvider/integrationlayer/dependencies/modules/OkHttpModule.kt

@@ -2,6 +2,7 @@ package ch.srg.dataProvider.integrationlayer.dependencies.modules
 
 import android.content.Context
 import android.content.res.Configuration
+import ch.srg.dataProvider.integrationlayer.utils.HostInterceptor
 import ch.srg.dataProvider.integrationlayer.utils.UserAgentInterceptor
 import ch.srg.dataProvider.integrationlayer.utils.UserAgentUtils
 import ch.srg.dataProvider.integrationlayer.utils.VectorInterceptor
@@ -31,6 +32,7 @@ object OkHttpModule {
         logging.setLevel(HttpLoggingInterceptor.Level.HEADERS)
         builder.addInterceptor(logging)
         builder.addInterceptor(UserAgentInterceptor(UserAgentUtils.createUserAgent(context)))
+        builder.addInterceptor(HostInterceptor())
         builder.addInterceptor(VectorInterceptor(vector))
         builder.readTimeout(READ_TIMEOUT_SECONDS, TimeUnit.SECONDS)
         builder.connectTimeout(CONNECT_TIMEOUT_SECONDS, TimeUnit.SECONDS)

dataprovider-retrofit/src/main/java/ch/srg/dataProvider/integrationlayer/utils/HostInterceptor.kt

@@ -0,0 +1,33 @@
+package ch.srg.dataProvider.integrationlayer.utils
+
+import okhttp3.Interceptor
+import okhttp3.Response
+
+/**
+ * Adds a query parameter "forceSAM=true" to each SAM HTTP request.
+ * See [IlHost] for more details.
+ */
+class HostInterceptor : Interceptor {
+
+    override fun intercept(chain: Interceptor.Chain): Response {
+        val originalRequest = chain.request()
+        val originalHttpUrl = originalRequest.url
+
+        if (originalHttpUrl.queryParameter(FORCE_SAM) != null || !originalHttpUrl.pathSegments.contains("sam")) {
+            return chain.proceed(originalRequest)
+        }
+
+        val url = originalHttpUrl.newBuilder()
+            .addQueryParameter(FORCE_SAM, "true")
+            .build()
+
+        // Request customization: add request headers
+        val requestBuilder = originalRequest.newBuilder().url(url)
+        val request = requestBuilder.build()
+        return chain.proceed(request)
+    }
+
+    companion object {
+        private const val FORCE_SAM = "forceSAM"
+    }
+}