Blocked Resource Responses

Added resources used for replacing HTML elements when
they are blocked. These were modeled after the malware
response page.

BUG=16932
TEST=none

Review URL: http://codereview.chromium.org/164158

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@23036 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 82 insertions, 0 deletions

diff --git a/chrome/browser/privacy_blacklist/blocked_response.cc b/chrome/browser/privacy_blacklist/blocked_response.cc
new file mode 100644
index 0000000..aacb344
--- /dev/null
+++ b/chrome/browser/privacy_blacklist/blocked_response.cc
@@ -0,0 +1,53 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/privacy_blacklist/blocked_response.h"
+
+#include "app/l10n_util.h"
+#include "app/resource_bundle.h"
+#include "base/logging.h"
+#include "base/values.h"
+#include "chrome/browser/privacy_blacklist/blacklist.h"
+#include "chrome/common/jstemplate_builder.h"
+#include "grit/browser_resources.h"
+#include "grit/generated_resources.h"
+
+namespace BlockedResponse {
+
+std::string GetHTML(const Blacklist::Match* match) {
+  DictionaryValue strings;
+  strings.SetString(L"title", l10n_util::GetString(IDS_BLACKLIST_TITLE));
+  strings.SetString(L"message", l10n_util::GetString(IDS_BLACKLIST_MESSAGE));
+  strings.SetString(L"unblock", l10n_util::GetString(IDS_BLACKLIST_UNBLOCK));
+
+  // If kBlockAll is specified, assign blame to such an entry.
+  // Otherwise pick the first one.
+  const Blacklist::Entry* entry = NULL;
+  if (match->attributes() & Blacklist::kBlockAll) {
+    for (std::vector<const Blacklist::Entry*>::const_iterator i =
+         match->entries().begin(); i != match->entries().end(); ++i) {
+      if ((*i)->attributes() == Blacklist::kBlockAll) {
+        entry = *i;
+        break;
+      }
+    }
+  } else {
+    entry = match->entries().front();
+  }
+  DCHECK(entry);
+
+  strings.SetString(L"name", entry->provider()->name());
+  strings.SetString(L"url", entry->provider()->url());
+
+  const StringPiece html =
+    ResourceBundle::GetSharedInstance().GetRawDataResource(IDR_BLACKLIST_HTML);
+  return jstemplate_builder::GetI18nTemplateHtml(html, &strings);
+}
+
+std::string GetImage(const Blacklist::Match*) {
+  return ResourceBundle::GetSharedInstance().
+      GetDataResource(IDR_BLACKLIST_IMAGE);
+}
+
+}  // namespace BlockedResponse
diff --git a/chrome/browser/privacy_blacklist/blocked_response.h b/chrome/browser/privacy_blacklist/blocked_response.h
new file mode 100644
index 0000000..1a770e4
--- /dev/null
+++ b/chrome/browser/privacy_blacklist/blocked_response.h
@@ -0,0 +1,29 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_PRIVACY_BLACKLIST_BLOCKED_RESPONSE_H_
+#define CHROME_BROWSER_PRIVACY_BLACKLIST_BLOCKED_RESPONSE_H_
+
+#include <string>
+
+#include "chrome/browser/privacy_blacklist/blacklist.h"
+
+// Generate localized responses to replace blacklisted resources.
+// Blacklisted resources such as frames and iframes are replaced
+// by HTML. Non visual resources such as Javascript and CSS are
+// simply be cancelled so there is no blocked response for them.
+
+namespace BlockedResponse {
+
+// Returns the HTML document used as substituted content for blacklisted
+// elements.
+std::string GetHTML(const Blacklist::Match* match);
+
+// Returns the image (as a string because that is what is expected by callers)
+// used as substituted content for blacklisted elements.
+std::string GetImage(const Blacklist::Match* match);
+
+}  // namespace BlockedResponse
+
+#endif  // CHROME_BROWSER_PRIVACY_BLACKLIST_BLOCKED_RESPONSE_H_