Add a chrome://interstitials page.

chrome/browser/ui/webui/interstitials/interstitial_ui.cc

+// Copyright 2014 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/ui/webui/interstitials/interstitial_ui.h"
+
+#include "base/strings/string_util.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/safe_browsing/safe_browsing_blocking_page.h"
+#include "chrome/browser/safe_browsing/safe_browsing_service.h"
+#include "chrome/browser/ssl/ssl_blocking_page.h"
+#include "chrome/common/url_constants.h"
+#include "content/public/browser/interstitial_page_delegate.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/browser/web_ui_controller.h"
+#include "content/public/browser/web_ui_data_source.h"
+#include "grit/browser_resources.h"
+#include "net/base/net_errors.h"
+#include "net/base/url_util.h"
+#include "net/cert/x509_certificate.h"
+#include "net/ssl/ssl_info.h"
+
+namespace {
+
+class InterstitialHTMLSource : public content::URLDataSource {
+ public:
+  InterstitialHTMLSource(Profile* profile,
+                         content::WebContents* web_contents);
+  virtual ~InterstitialHTMLSource();
+
+  // content::URLDataSource:
+  virtual std::string GetMimeType(const std::string& mime_type) const OVERRIDE;
+  virtual std::string GetSource() const OVERRIDE;
+  virtual bool ShouldAddContentSecurityPolicy() const OVERRIDE;
+  virtual void StartDataRequest(
+      const std::string& path,
+      int render_process_id,
+      int render_frame_id,
+      const content::URLDataSource::GotDataCallback& callback) OVERRIDE;
+
+ private:
+  Profile* profile_;
+  content::WebContents* web_contents_;
+  DISALLOW_COPY_AND_ASSIGN(InterstitialHTMLSource);
+};
+
+SSLBlockingPage* CreateSSLBlockingPage(content::WebContents* web_contents) {
+  // Random parameters for SSL blocking page.
+  int cert_error = net::ERR_CERT_CONTAINS_ERRORS;
+  GURL request_url("https://example.com");
+  bool overridable = false;
+  bool strict_enforcement = false;
+  std::string url_param;
+  if (net::GetValueForKeyInQuery(web_contents->GetURL(),
+                                 "url",
+                                 &url_param)) {
+    if (GURL(url_param).is_valid())
+      request_url = GURL(url_param);
+  }
+  std::string overridable_param;
+  if (net::GetValueForKeyInQuery(web_contents->GetURL(),
+                                 "overridable",
+                                 &overridable_param)) {
+    overridable = overridable_param == "1";
+  }
+  std::string strict_enforcement_param;
+  if (net::GetValueForKeyInQuery(web_contents->GetURL(),
+                                 "strict_enforcement",
+                                 &strict_enforcement_param)) {
+    strict_enforcement = strict_enforcement_param == "1";
+  }
+  net::SSLInfo ssl_info;
+  ssl_info.cert = new net::X509Certificate(
+      request_url.host(), "CA", base::Time::Max(), base::Time::Max());
+  // This delegate doesn't create an interstitial.
+  return SSLBlockingPage::CreateForWebUI(web_contents, cert_error, ssl_info,
+                                         request_url, overridable,
+                                         strict_enforcement);
+}
+
+SafeBrowsingBlockingPage* CreateSafeBrowsingBlockingPage(
+    content::WebContents* web_contents) {
+  SBThreatType threat_type = SB_THREAT_TYPE_URL_MALWARE;
+  GURL request_url("http://example.com");
+  std::string url_param;
+  if (net::GetValueForKeyInQuery(web_contents->GetURL(),
+                                 "url",
+                                 &url_param)) {
+    if (GURL(url_param).is_valid())
+      request_url = GURL(url_param);
+  }
+  std::string type_param;
+  if (net::GetValueForKeyInQuery(web_contents->GetURL(),
+                                 "type",
+                                 &type_param)) {
+    if (type_param == "malware") {
+      threat_type =  SB_THREAT_TYPE_URL_MALWARE;
+    } else if (type_param == "phishing") {
+      threat_type = SB_THREAT_TYPE_URL_PHISHING;
+    } else if (type_param == "clientside_malware") {
+      threat_type = SB_THREAT_TYPE_CLIENT_SIDE_MALWARE_URL;
+    } else if (type_param == "clientside_phishing") {
+      threat_type = SB_THREAT_TYPE_CLIENT_SIDE_PHISHING_URL;
+      // Interstitials for client side phishing urls load after the page loads
+      // (see SafeBrowsingBlockingPage::IsMainPageLoadBlocked), so there should
+      // either be a new navigation entry, or there shouldn't be any pending
+      // entries. Clear any pending navigation entries.
+      content::NavigationController* controller =
+          &web_contents->GetController();
+      controller->DiscardNonCommittedEntries();
+    }
+  }
+  SafeBrowsingBlockingPage::UnsafeResource resource;
+  resource.url = request_url;
+  resource.threat_type =  threat_type;
+  return SafeBrowsingBlockingPage::CreateBlockingPage(
+      g_browser_process->safe_browsing_service()->ui_manager(),
+      web_contents,
+      resource);
+}
+
+} //  namespace
+
+InterstitialUI::InterstitialUI(content::WebUI* web_ui)
+    : WebUIController(web_ui) {
+  Profile* profile = Profile::FromWebUI(web_ui);
+  scoped_ptr<InterstitialHTMLSource> html_source(
+      new InterstitialHTMLSource(profile->GetOriginalProfile(),
+                                 web_ui->GetWebContents()));
+  content::URLDataSource::Add(profile, html_source.release());
+}
+
+InterstitialUI::~InterstitialUI() {
+}
+
+// InterstitialHTMLSource
+
+InterstitialHTMLSource::InterstitialHTMLSource(
+    Profile* profile,
+    content::WebContents* web_contents)
+    : profile_(profile),
+      web_contents_(web_contents) {
+}
+
+InterstitialHTMLSource::~InterstitialHTMLSource() {
+}
+
+std::string InterstitialHTMLSource::GetMimeType(
+    const std::string& mime_type) const {
+  return "text/html";
+}
+
+std::string InterstitialHTMLSource::GetSource() const {
+  return chrome::kChromeUIInterstitialHost;
+}
+
+bool InterstitialHTMLSource::ShouldAddContentSecurityPolicy()
+    const {
+  return false;
+}
+
+void InterstitialHTMLSource::StartDataRequest(
+    const std::string& path,
+    int render_process_id,
+    int render_frame_id,
+    const content::URLDataSource::GotDataCallback& callback) {
+  scoped_ptr<content::InterstitialPageDelegate> interstitial_delegate;
+  if (StartsWithASCII(path, "ssl", true)) {
+    interstitial_delegate.reset(CreateSSLBlockingPage(web_contents_));
+  } else if (StartsWithASCII(path, "safebrowsing", true)) {
+    interstitial_delegate.reset(CreateSafeBrowsingBlockingPage(web_contents_));
+  }
+
+  std::string html;
+  if (interstitial_delegate.get()) {
+    html = interstitial_delegate.get()->GetHTMLContents();
+  } else {
+    html = "<html><head><title>Interstitials</title></head>"
+           "<body><h2>Choose an interstitial<h2>"
+           "<h3>SSL</h3>"
+           "<a href='ssl'>example.com</a><br>"
+           "<a href='ssl?url=https://google.com'>SSL (google.com)</a><br>"
+           "<a href='ssl?overridable=1&strict_enforcement=0'>"
+           "    example.com (Overridable)</a>"
+           "<br><br>"
+           "<h3>SafeBrowsing</h3>"
+           "<a href='safebrowsing?type=malware'>Malware</a><br>"
+           "<a href='safebrowsing?type=phishing'>Phishing</a><br>"
+           "<a href='safebrowsing?type=clientside_malware'>"
+           "    Client Side Malware</a><br>"
+           "<a href='safebrowsing?type=clientside_phishing'>"
+           "    Client Side Phishing</a><br>"
+           "</body></html>";
+  }
+  scoped_refptr<base::RefCountedString> html_bytes = new base::RefCountedString;
+  html_bytes->data().assign(html.begin(), html.end());
+  callback.Run(html_bytes.get());
+}