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