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