Add RLZ support to Browser.
RLZ assigns non-unique, non-personally identifiable tracking
labels to client products; these labels sometimes appear in
Google search queries. See http://code.google.com/p/rlz for
more info.
Bug: 2927060
Change-Id: I992cd2859d590616df57293adb7ac22038088d49
diff --git a/src/com/android/browser/BrowserActivity.java b/src/com/android/browser/BrowserActivity.java
index 54fb96f..548eba6 100644
--- a/src/com/android/browser/BrowserActivity.java
+++ b/src/com/android/browser/BrowserActivity.java
@@ -167,6 +167,9 @@
private boolean mXLargeScreenSize;
+ private Boolean mIsProviderPresent = null;
+ private Uri mRlzUri = null;
+
@Override
public void onCreate(Bundle icicle) {
if (LOGV_ENABLED) {
@@ -2784,6 +2787,29 @@
return false;
}
+ // If this is a Google search, attempt to add an RLZ string (if one isn't already present).
+ if (rlzProviderPresent()) {
+ Uri siteUri = Uri.parse(url);
+ if (needsRlzString(siteUri)) {
+ String rlz = null;
+ Cursor cur = null;
+ try {
+ cur = getContentResolver().query(getRlzUri(), null, null, null, null);
+ if (cur != null && cur.moveToFirst() && !cur.isNull(0)) {
+ url = siteUri.buildUpon()
+ .appendQueryParameter("rlz", cur.getString(0))
+ .build().toString();
+ }
+ } finally {
+ if (cur != null) {
+ cur.close();
+ }
+ }
+ loadUrl(view, url);
+ return true;
+ }
+ }
+
Intent intent;
// perform generic parsing of the URI to turn it into an Intent.
try {
@@ -2839,6 +2865,60 @@
return false;
}
+ // Determine whether the RLZ provider is present on the system.
+ private boolean rlzProviderPresent() {
+ if (mIsProviderPresent == null) {
+ PackageManager pm = getPackageManager();
+ mIsProviderPresent = pm.resolveContentProvider(BrowserSettings.RLZ_PROVIDER, 0) != null;
+ }
+ return mIsProviderPresent;
+ }
+
+ // Retrieve the RLZ access point string and cache the URI used to retrieve RLZ values.
+ private Uri getRlzUri() {
+ if (mRlzUri == null) {
+ String ap = getResources().getString(R.string.rlz_access_point);
+ mRlzUri = Uri.withAppendedPath(BrowserSettings.RLZ_PROVIDER_URI, ap);
+ }
+ return mRlzUri;
+ }
+
+ // Determine if this URI appears to be for a Google search and does not have an RLZ parameter.
+ // Taken largely from Chrome source, src/chrome/browser/google_url_tracker.cc
+ private static boolean needsRlzString(Uri uri) {
+ if ((uri.getQueryParameter("q") != null) && (uri.getQueryParameter("rlz") == null)) {
+ String host = uri.getHost();
+ if (host == null) {
+ return false;
+ }
+ String[] hostComponents = host.split("\\.");
+
+ if (hostComponents.length < 2) {
+ return false;
+ }
+ int googleComponent = hostComponents.length - 2;
+ String component = hostComponents[googleComponent];
+ if (!"google".equals(component)) {
+ if (hostComponents.length < 3 ||
+ (!"co".equals(component) && !"com".equals(component))) {
+ return false;
+ }
+ googleComponent = hostComponents.length - 3;
+ if (!"google".equals(hostComponents[googleComponent])) {
+ return false;
+ }
+ }
+
+ // Google corp network handling.
+ if (googleComponent > 0 && "corp".equals(hostComponents[googleComponent - 1])) {
+ return false;
+ }
+
+ return true;
+ }
+ return false;
+ }
+
// -------------------------------------------------------------------------
// Helper function for WebChromeClient
// -------------------------------------------------------------------------