Correctly perform cookie authentication

Correctly generate the URI for the cookie interceptor so it can perform
authentication. This is done by removing the last whole path component,
which is the database name that the replication is replicating with.

Fixes #415

Author: rhyshort

CHANGES.md

@@ -1,3 +1,6 @@
+# Unreleased
+- [FIXED] Issue performing cookie authentication in version 1.1.3.
+
 # 1.1.3 (2016-11-22)
 - [FIXED] Incorrect message output from parameter `null` or empty checks.
 - [FIXED] Issue where replications would error if the server returned missing revisions.

cloudant-sync-datastore-core/src/main/java/com/cloudant/sync/replication/ReplicatorBuilder.java

@@ -70,7 +70,27 @@ private URI addCookieInterceptorIfRequired(URI uri) {
         if (uri.getUserInfo() != null) {
             String[] parts = uri.getUserInfo().split(":");
             if (parts.length == 2) {
-                CookieInterceptor ci = new CookieInterceptor(parts[0], parts[1], uri.toString());
+
+                String path = uri.getRawPath();
+                int index = path.lastIndexOf("/");
+                if (index == path.length() - 1) {
+                    // we need to go back one
+                    path = path.substring(0, index);
+                    index = path.lastIndexOf("/");
+                }
+
+                path = path.substring(0, index);
+
+                URI baseURI;
+
+                try {
+                    baseURI = new URI(uriProtocol, null, uriHost, uriPort, path, null, null);
+                } catch (URISyntaxException e) {
+                    throw new RuntimeException(e);
+                }
+
+
+                CookieInterceptor ci = new CookieInterceptor(parts[0], parts[1], baseURI.toString());
                 requestInterceptors.add(ci);
                 responseInterceptors.add(ci);
             }