[WIP] WebRestrictions

android_webview/renderer/aw_content_renderer_client.cc

 // Copyright 2012 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 "android_webview/renderer/aw_content_renderer_client.h"
 
 #include <vector>
 
+#include "android_webview/browser/aw_browser_context.h"
 #include "android_webview/common/aw_resource.h"
 #include "android_webview/common/aw_switches.h"
 #include "android_webview/common/render_view_messages.h"
 #include "android_webview/common/url_constants.h"
 #include "android_webview/grit/aw_resources.h"
 #include "android_webview/grit/aw_strings.h"
 #include "android_webview/renderer/aw_content_settings_client.h"
 #include "android_webview/renderer/aw_key_systems.h"
 #include "android_webview/renderer/aw_message_port_client.h"
 #include "android_webview/renderer/aw_print_web_view_helper_delegate.h"
 #include "android_webview/renderer/aw_render_frame_ext.h"
 #include "android_webview/renderer/aw_render_view_ext.h"
 #include "android_webview/renderer/print_render_frame_observer.h"
 #include "base/command_line.h"
 #include "base/i18n/rtl.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/autofill/content/renderer/autofill_agent.h"
 #include "components/autofill/content/renderer/password_autofill_agent.h"
 #include "components/printing/renderer/print_web_view_helper.h"
 #include "components/visitedlink/renderer/visitedlink_slave.h"
+#include "components/web_restriction/web_restriction_gin_wrapper.h"
+#include "components/web_restriction/web_restriction_provider.h"
 #include "content/public/common/url_constants.h"
 #include "content/public/renderer/document_state.h"
 #include "content/public/renderer/navigation_state.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "net/base/escape.h"
 #include "net/base/net_errors.h"
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/WebURL.h"
@@ skipping 127 matching lines @@
       scoped_ptr<printing::PrintWebViewHelper::Delegate>(
           new AwPrintWebViewHelperDelegate()));
 }
 
 bool AwContentRendererClient::HasErrorPage(int http_status_code,
                           std::string* error_domain) {
   return http_status_code >= 400;
 }
 
 void AwContentRendererClient::GetNavigationErrorStrings(
-    content::RenderFrame* /* render_frame */,
+    content::RenderFrame* render_frame,
     const blink::WebURLRequest& failed_request,
     const blink::WebURLError& error,
     std::string* error_html,
     base::string16* error_description) {
   if (error_html) {
-    std::string url =
-        net::EscapeForHTML(GURL(failed_request.url()).possibly_invalid_spec());
+    GURL gurl(failed_request.url());
+    std::string url = net::EscapeForHTML(gurl.possibly_invalid_spec());
     std::string err =
         base::UTF16ToUTF8(base::StringPiece16(error.localizedDescription));
 
     std::vector<std::string> replacements;
     replacements.push_back(
         l10n_util::GetStringUTF8(IDS_AW_WEBPAGE_NOT_AVAILABLE));
     if (err.empty()) {
       replacements.push_back(l10n_util::GetStringFUTF8(
           IDS_AW_WEBPAGE_TEMPORARILY_DOWN, base::UTF8ToUTF16(url)));
       replacements.push_back(l10n_util::GetStringUTF8(
           IDS_AW_WEBPAGE_TEMPORARILY_DOWN_SUGGESTIONS));
     } else {
       replacements.push_back(l10n_util::GetStringFUTF8(
           IDS_AW_WEBPAGE_CAN_NOT_BE_LOADED, base::UTF8ToUTF16(url)));
       replacements.push_back(err);
     }
     if (base::i18n::IsRTL())
       replacements.push_back("direction: rtl;");
     else
       replacements.push_back("");
     *error_html = base::ReplaceStringPlaceholders(
         ResourceBundle::GetSharedInstance().GetRawDataResource(
             IDR_AW_LOAD_ERROR_HTML),
         replacements, nullptr);
+    if (error.reason == net::ERR_BLOCKED_BY_ADMINISTRATOR) {
+      // Move to aw/common/ if chrome's solution is too complicated
+      auto web_restriction_provider =
+          AwBrowserContext::GetDefault()->GetWebRestrictionProvider();
+      std::string restricted_page;
+      if (web_restriction_provider->GetErrorHtml(gurl, &restricted_page))
+        *error_html = restricted_page;
+      if (web_restriction_provider->SupportsRequest())
+        web_restriction::WebRestrictionGinWrapper::Install(render_frame);

[jochen (gone - plz use gerrit), 2016/02/22 14:24:43]

you install the gin wrapper before you actually navigate to the error string,
no?

The error_page component only injects its gin wrappers once the render frame
finished loading the error html

+    }
   }
   if (error_description) {
     if (error.localizedDescription.isEmpty())
       *error_description = base::ASCIIToUTF16(net::ErrorToString(error.reason));
     else
       *error_description = error.localizedDescription;
   }
 }
 
 unsigned long long AwContentRendererClient::VisitedLinkHash(
@@ skipping 16 matching lines @@
     blink::WebPageVisibilityState* override_state) {
   if (disable_page_visibility_) {
     *override_state = blink::WebPageVisibilityStateVisible;
     return true;
   }
 
   return false;
 }
 
 }  // namespace android_webview