android_webview/renderer/aw_content_renderer_client.cc

   1 // Copyright 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "android_webview/renderer/aw_content_renderer_client.h"
   6
   7 #include "android_webview/common/aw_resource.h"
   8 #include "android_webview/common/render_view_messages.h"
   9 #include "android_webview/common/url_constants.h"
  10 #include "android_webview/renderer/aw_content_settings_client.h"
  11 #include "android_webview/renderer/aw_key_systems.h"
  12 #include "android_webview/renderer/aw_message_port_client.h"
  13 #include "android_webview/renderer/aw_print_web_view_helper_delegate.h"
  14 #include "android_webview/renderer/aw_render_frame_ext.h"
  15 #include "android_webview/renderer/aw_render_view_ext.h"
  16 #include "android_webview/renderer/print_render_frame_observer.h"
  17 #include "base/message_loop/message_loop.h"
  18 #include "base/strings/utf_string_conversions.h"
  19 #include "components/autofill/content/renderer/autofill_agent.h"
  20 #include "components/autofill/content/renderer/password_autofill_agent.h"
  21 #include "components/printing/renderer/print_web_view_helper.h"
  22 #include "components/visitedlink/renderer/visitedlink_slave.h"
  23 #include "content/public/common/url_constants.h"
  24 #include "content/public/renderer/document_state.h"
  25 #include "content/public/renderer/navigation_state.h"
  26 #include "content/public/renderer/render_frame.h"
  27 #include "content/public/renderer/render_thread.h"
  28 #include "content/public/renderer/render_view.h"
  29 #include "net/base/escape.h"
  30 #include "net/base/net_errors.h"
  31 #include "third_party/WebKit/public/platform/WebString.h"
  32 #include "third_party/WebKit/public/platform/WebURL.h"
  33 #include "third_party/WebKit/public/platform/WebURLError.h"
  34 #include "third_party/WebKit/public/platform/WebURLRequest.h"
  35 #include "third_party/WebKit/public/web/WebFrame.h"
  36 #include "third_party/WebKit/public/web/WebNavigationType.h"
  37 #include "third_party/WebKit/public/web/WebSecurityPolicy.h"
  38 #include "url/gurl.h"
  39
  40 using content::RenderThread;
  41
  42 namespace android_webview {
  43
  44 AwContentRendererClient::AwContentRendererClient() {
  45 }
  46
  47 AwContentRendererClient::~AwContentRendererClient() {
  48 }
  49
  50 void AwContentRendererClient::RenderThreadStarted() {
  51   blink::WebString content_scheme(
  52       base::ASCIIToUTF16(android_webview::kContentScheme));
  53   blink::WebSecurityPolicy::registerURLSchemeAsLocal(content_scheme);
  54
  55   blink::WebString aw_scheme(
  56       base::ASCIIToUTF16(android_webview::kAndroidWebViewVideoPosterScheme));
  57   blink::WebSecurityPolicy::registerURLSchemeAsSecure(aw_scheme);
  58
  59   RenderThread* thread = RenderThread::Get();
  60
  61   aw_render_process_observer_.reset(new AwRenderProcessObserver);
  62   thread->AddObserver(aw_render_process_observer_.get());
  63
  64   visited_link_slave_.reset(new visitedlink::VisitedLinkSlave);
  65   thread->AddObserver(visited_link_slave_.get());
  66 }
  67
  68 bool AwContentRendererClient::HandleNavigation(
  69     content::RenderFrame* render_frame,
  70     content::DocumentState* document_state,
  71     int opener_id,
  72     blink::WebFrame* frame,
  73     const blink::WebURLRequest& request,
  74     blink::WebNavigationType type,
  75     blink::WebNavigationPolicy default_policy,
  76     bool is_redirect) {
  77
  78   // Only GETs can be overridden.
  79   if (!request.httpMethod().equals("GET"))
  80     return false;
  81
  82   // Any navigation from loadUrl, and goBack/Forward are considered application-
  83   // initiated and hence will not yield a shouldOverrideUrlLoading() callback.
  84   // Webview classic does not consider reload application-initiated so we
  85   // continue the same behavior.
  86   // TODO(sgurun) is_content_initiated is normally false for cross-origin
  87   // navigations but since android_webview does not swap out renderers, this
  88   // works fine. This will stop working if android_webview starts swapping out
  89   // renderers on navigation.
  90   bool application_initiated =
  91       !document_state->navigation_state()->IsContentInitiated() ||
  92       type == blink::WebNavigationTypeBackForward;
  93
  94   // Don't offer application-initiated navigations unless it's a redirect.
  95   if (application_initiated && !is_redirect)
  96     return false;
  97
  98   const GURL& gurl = request.url();
  99   // For HTTP schemes, only top-level navigations can be overridden. Similarly,
 100   // WebView Classic lets app override only top level about:blank navigations.
 101   // So we filter out non-top about:blank navigations here.
 102   if (frame->parent() &&
 103       (gurl.SchemeIs(url::kHttpScheme) || gurl.SchemeIs(url::kHttpsScheme) ||
 104        gurl.SchemeIs(url::kAboutScheme)))
 105     return false;
 106
 107   // use NavigationInterception throttle to handle the call as that can
 108   // be deferred until after the java side has been constructed.
 109   if (opener_id != MSG_ROUTING_NONE) {
 110     return false;
 111   }
 112
 113   bool ignore_navigation = false;
 114   base::string16 url =  request.url().string();
 115
 116   int render_frame_id = render_frame->GetRoutingID();
 117   RenderThread::Get()->Send(new AwViewHostMsg_ShouldOverrideUrlLoading(
 118       render_frame_id, url, &ignore_navigation));
 119   return ignore_navigation;
 120 }
 121
 122 void AwContentRendererClient::RenderFrameCreated(
 123     content::RenderFrame* render_frame) {
 124   new AwContentSettingsClient(render_frame);
 125   new PrintRenderFrameObserver(render_frame);
 126   new AwRenderFrameExt(render_frame);
 127   new AwMessagePortClient(render_frame);
 128
 129   // TODO(jam): when the frame tree moves into content and parent() works at
 130   // RenderFrame construction, simplify this by just checking parent().
 131   content::RenderFrame* parent_frame =
 132       render_frame->GetRenderView()->GetMainRenderFrame();
 133   if (parent_frame && parent_frame != render_frame) {
 134     // Avoid any race conditions from having the browser's UI thread tell the IO
 135     // thread that a subframe was created.
 136     RenderThread::Get()->Send(new AwViewHostMsg_SubFrameCreated(
 137         parent_frame->GetRoutingID(), render_frame->GetRoutingID()));
 138   }
 139
 140   // TODO(sgurun) do not create a password autofill agent (change
 141   // autofill agent to store a weakptr).
 142   autofill::PasswordAutofillAgent* password_autofill_agent =
 143       new autofill::PasswordAutofillAgent(render_frame);
 144   new autofill::AutofillAgent(render_frame, password_autofill_agent, NULL);
 145 }
 146
 147 void AwContentRendererClient::RenderViewCreated(
 148     content::RenderView* render_view) {
 149   AwRenderViewExt::RenderViewCreated(render_view);
 150
 151   new printing::PrintWebViewHelper(
 152       render_view,
 153       scoped_ptr<printing::PrintWebViewHelper::Delegate>(
 154           new AwPrintWebViewHelperDelegate()));
 155 }
 156
 157 bool AwContentRendererClient::HasErrorPage(int http_status_code,
 158                           std::string* error_domain) {
 159   return http_status_code >= 400;
 160 }
 161
 162 void AwContentRendererClient::GetNavigationErrorStrings(
 163     content::RenderView* /* render_view */,
 164     blink::WebFrame* /* frame */,
 165     const blink::WebURLRequest& failed_request,
 166     const blink::WebURLError& error,
 167     std::string* error_html,
 168     base::string16* error_description) {
 169   if (error_html) {
 170     GURL error_url(failed_request.url());
 171     std::string err = base::UTF16ToUTF8(error.localizedDescription);
 172     std::string contents;
 173     if (err.empty()) {
 174       contents = AwResource::GetNoDomainPageContent();
 175     } else {
 176       contents = AwResource::GetLoadErrorPageContent();
 177       ReplaceSubstringsAfterOffset(&contents, 0, "%e", err);
 178     }
 179
 180     ReplaceSubstringsAfterOffset(&contents, 0, "%s",
 181         net::EscapeForHTML(error_url.possibly_invalid_spec()));
 182     *error_html = contents;
 183   }
 184   if (error_description) {
 185     if (error.localizedDescription.isEmpty())
 186       *error_description = base::ASCIIToUTF16(net::ErrorToString(error.reason));
 187     else
 188       *error_description = error.localizedDescription;
 189   }
 190 }
 191
 192 unsigned long long AwContentRendererClient::VisitedLinkHash(
 193     const char* canonical_url,
 194     size_t length) {
 195   return visited_link_slave_->ComputeURLFingerprint(canonical_url, length);
 196 }
 197
 198 bool AwContentRendererClient::IsLinkVisited(unsigned long long link_hash) {
 199   return visited_link_slave_->IsVisited(link_hash);
 200 }
 201
 202 void AwContentRendererClient::AddKeySystems(
 203     std::vector<media::KeySystemInfo>* key_systems) {
 204   AwAddKeySystems(key_systems);
 205 }
 206
 207 bool AwContentRendererClient::ShouldOverridePageVisibilityState(
 208     const content::RenderFrame* render_frame,
 209     blink::WebPageVisibilityState* override_state) {
 210   // webview is always visible due to rendering requirements.
 211   *override_state = blink::WebPageVisibilityStateVisible;
 212   return true;
 213 }
 214
 215 }  // namespace android_webview