chrome/browser/dom_distiller/dom_distiller_viewer_source_browsertest.cc

   1 // Copyright 2014 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 <string.h>
   6
   7 #include "base/command_line.h"
   8 #include "base/guid.h"
   9 #include "base/strings/utf_string_conversions.h"
  10 #include "chrome/browser/dom_distiller/dom_distiller_service_factory.h"
  11 #include "chrome/browser/profiles/profile.h"
  12 #include "chrome/browser/ui/browser.h"
  13 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  14 #include "chrome/common/chrome_switches.h"
  15 #include "chrome/test/base/in_process_browser_test.h"
  16 #include "chrome/test/base/ui_test_utils.h"
  17 #include "components/dom_distiller/content/dom_distiller_viewer_source.h"
  18 #include "components/dom_distiller/core/article_entry.h"
  19 #include "components/dom_distiller/core/distilled_page_prefs.h"
  20 #include "components/dom_distiller/core/distiller.h"
  21 #include "components/dom_distiller/core/dom_distiller_service.h"
  22 #include "components/dom_distiller/core/dom_distiller_store.h"
  23 #include "components/dom_distiller/core/dom_distiller_test_util.h"
  24 #include "components/dom_distiller/core/fake_distiller.h"
  25 #include "components/dom_distiller/core/fake_distiller_page.h"
  26 #include "components/dom_distiller/core/task_tracker.h"
  27 #include "components/dom_distiller/core/url_constants.h"
  28 #include "components/dom_distiller/core/url_utils.h"
  29 #include "components/leveldb_proto/testing/fake_db.h"
  30 #include "content/public/browser/render_view_host.h"
  31 #include "content/public/browser/url_data_source.h"
  32 #include "content/public/browser/web_contents.h"
  33 #include "content/public/browser/web_contents_observer.h"
  34 #include "content/public/test/browser_test_utils.h"
  35 #include "testing/gmock/include/gmock/gmock.h"
  36 #include "testing/gtest/include/gtest/gtest.h"
  37
  38 namespace dom_distiller {
  39
  40 using leveldb_proto::test::FakeDB;
  41 using test::FakeDistiller;
  42 using test::MockDistillerPage;
  43 using test::MockDistillerFactory;
  44 using test::MockDistillerPageFactory;
  45 using test::util::CreateStoreWithFakeDB;
  46 using testing::HasSubstr;
  47 using testing::Not;
  48
  49 namespace {
  50
  51 const char kGetLoadIndicatorClassName[] =
  52     "window.domAutomationController.send("
  53         "document.getElementById('loadingIndicator').className)";
  54
  55 const char kGetContent[] =
  56     "window.domAutomationController.send("
  57         "document.getElementById('content').innerHTML)";
  58
  59 const char kGetBodyClass[] =
  60     "window.domAutomationController.send("
  61         "document.body.className)";
  62
  63 void AddEntry(const ArticleEntry& e, FakeDB<ArticleEntry>::EntryMap* map) {
  64   (*map)[e.entry_id()] = e;
  65 }
  66
  67 ArticleEntry CreateEntry(std::string entry_id, std::string page_url) {
  68   ArticleEntry entry;
  69   entry.set_entry_id(entry_id);
  70   if (!page_url.empty()) {
  71     ArticleEntryPage* page = entry.add_pages();
  72     page->set_url(page_url);
  73   }
  74   return entry;
  75 }
  76
  77 }  // namespace
  78
  79 class DomDistillerViewerSourceBrowserTest : public InProcessBrowserTest {
  80  public:
  81   DomDistillerViewerSourceBrowserTest() {}
  82   ~DomDistillerViewerSourceBrowserTest() override {}
  83
  84   void SetUpOnMainThread() override {
  85     database_model_ = new FakeDB<ArticleEntry>::EntryMap;
  86   }
  87
  88   void TearDownOnMainThread() override { delete database_model_; }
  89
  90   void SetUpCommandLine(base::CommandLine* command_line) override {
  91     command_line->AppendSwitch(switches::kEnableDomDistiller);
  92   }
  93
  94   static KeyedService* Build(content::BrowserContext* context) {
  95     FakeDB<ArticleEntry>* fake_db = new FakeDB<ArticleEntry>(database_model_);
  96     distiller_factory_ = new MockDistillerFactory();
  97     MockDistillerPageFactory* distiller_page_factory_ =
  98         new MockDistillerPageFactory();
  99     DomDistillerContextKeyedService* service =
 100         new DomDistillerContextKeyedService(
 101             scoped_ptr<DomDistillerStoreInterface>(
 102                 CreateStoreWithFakeDB(fake_db,
 103                                       FakeDB<ArticleEntry>::EntryMap())),
 104             scoped_ptr<DistillerFactory>(distiller_factory_),
 105             scoped_ptr<DistillerPageFactory>(distiller_page_factory_),
 106             scoped_ptr<DistilledPagePrefs>(
 107                 new DistilledPagePrefs(
 108                       Profile::FromBrowserContext(
 109                           context)->GetPrefs())));
 110     fake_db->InitCallback(true);
 111     fake_db->LoadCallback(true);
 112     if (expect_distillation_) {
 113       // There will only be destillation of an article if the database contains
 114       // the article.
 115       FakeDistiller* distiller = new FakeDistiller(true);
 116       EXPECT_CALL(*distiller_factory_, CreateDistillerImpl())
 117           .WillOnce(testing::Return(distiller));
 118     }
 119     if (expect_distiller_page_) {
 120       MockDistillerPage* distiller_page = new MockDistillerPage();
 121       EXPECT_CALL(*distiller_page_factory_, CreateDistillerPageImpl())
 122           .WillOnce(testing::Return(distiller_page));
 123     }
 124     return service;
 125   }
 126
 127   void ViewSingleDistilledPage(const GURL& url,
 128                                const std::string& expected_mime_type);
 129   // Database entries.
 130   static FakeDB<ArticleEntry>::EntryMap* database_model_;
 131   static bool expect_distillation_;
 132   static bool expect_distiller_page_;
 133   static MockDistillerFactory* distiller_factory_;
 134 };
 135
 136 FakeDB<ArticleEntry>::EntryMap*
 137     DomDistillerViewerSourceBrowserTest::database_model_;
 138 bool DomDistillerViewerSourceBrowserTest::expect_distillation_ = false;
 139 bool DomDistillerViewerSourceBrowserTest::expect_distiller_page_ = false;
 140 MockDistillerFactory* DomDistillerViewerSourceBrowserTest::distiller_factory_ =
 141     NULL;
 142
 143 // The DomDistillerViewerSource renders untrusted content, so ensure no bindings
 144 // are enabled when the article exists in the database.
 145 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest,
 146                        NoWebUIBindingsArticleExists) {
 147   // Ensure there is one item in the database, which will trigger distillation.
 148   const ArticleEntry entry = CreateEntry("DISTILLED", "http://example.com/1");
 149   AddEntry(entry, database_model_);
 150   expect_distillation_ = true;
 151   expect_distiller_page_ = true;
 152   const GURL url = url_utils::GetDistillerViewUrlFromEntryId(
 153       kDomDistillerScheme, entry.entry_id());
 154   ViewSingleDistilledPage(url, "text/html");
 155 }
 156
 157 // The DomDistillerViewerSource renders untrusted content, so ensure no bindings
 158 // are enabled when the article is not found.
 159 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest,
 160                        NoWebUIBindingsArticleNotFound) {
 161   // The article does not exist, so assume no distillation will happen.
 162   expect_distillation_ = false;
 163   expect_distiller_page_ = false;
 164   const GURL url = url_utils::GetDistillerViewUrlFromEntryId(
 165       kDomDistillerScheme, "DOES_NOT_EXIST");
 166   ViewSingleDistilledPage(url, "text/html");
 167 }
 168
 169 // The DomDistillerViewerSource renders untrusted content, so ensure no bindings
 170 // are enabled when requesting to view an arbitrary URL.
 171 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest,
 172                        NoWebUIBindingsViewUrl) {
 173   // We should expect distillation for any valid URL.
 174   expect_distillation_ = true;
 175   expect_distiller_page_ = true;
 176   GURL view_url("http://www.example.com/1");
 177   const GURL url =
 178       url_utils::GetDistillerViewUrlFromUrl(kDomDistillerScheme, view_url);
 179   ViewSingleDistilledPage(url, "text/html");
 180 }
 181
 182 void DomDistillerViewerSourceBrowserTest::ViewSingleDistilledPage(
 183     const GURL& url,
 184     const std::string& expected_mime_type) {
 185   // Ensure the correct factory is used for the DomDistillerService.
 186   dom_distiller::DomDistillerServiceFactory::GetInstance()
 187       ->SetTestingFactoryAndUse(browser()->profile(), &Build);
 188
 189   // Navigate to a URL which the source should respond to.
 190   ui_test_utils::NavigateToURL(browser(), url);
 191
 192   // Ensure no bindings for the loaded |url|.
 193   content::WebContents* contents_after_nav =
 194       browser()->tab_strip_model()->GetActiveWebContents();
 195   ASSERT_TRUE(contents_after_nav != NULL);
 196   EXPECT_EQ(url, contents_after_nav->GetLastCommittedURL());
 197   const content::RenderViewHost* render_view_host =
 198       contents_after_nav->GetRenderViewHost();
 199   EXPECT_EQ(0, render_view_host->GetEnabledBindings());
 200   EXPECT_EQ(expected_mime_type, contents_after_nav->GetContentsMimeType());
 201 }
 202
 203 // The DomDistillerViewerSource renders untrusted content, so ensure no bindings
 204 // are enabled when the CSS resource is loaded. This CSS might be bundle with
 205 // Chrome or provided by an extension.
 206 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest,
 207                        NoWebUIBindingsDisplayCSS) {
 208   expect_distillation_ = false;
 209   expect_distiller_page_ = false;
 210   // Navigate to a URL which the source should respond to with CSS.
 211   std::string url_without_scheme = std::string("://foobar/") + kViewerCssPath;
 212   GURL url(kDomDistillerScheme + url_without_scheme);
 213   ViewSingleDistilledPage(url, "text/css");
 214 }
 215
 216 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest,
 217                        EmptyURLShouldNotCrash) {
 218   // This is a bogus URL, so no distillation will happen.
 219   expect_distillation_ = false;
 220   expect_distiller_page_ = false;
 221   const GURL url(std::string(kDomDistillerScheme) + "://bogus/");
 222   ViewSingleDistilledPage(url, "text/html");
 223 }
 224
 225 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest,
 226                        InvalidURLShouldNotCrash) {
 227   // This is a bogus URL, so no distillation will happen.
 228   expect_distillation_ = false;
 229   expect_distiller_page_ = false;
 230   const GURL url(std::string(kDomDistillerScheme) + "://bogus/foobar");
 231   ViewSingleDistilledPage(url, "text/html");
 232 }
 233
 234 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest,
 235                        MultiPageArticle) {
 236   expect_distillation_ = false;
 237   expect_distiller_page_ = true;
 238   dom_distiller::DomDistillerServiceFactory::GetInstance()
 239       ->SetTestingFactoryAndUse(browser()->profile(), &Build);
 240
 241   scoped_refptr<content::MessageLoopRunner> distillation_done_runner =
 242       new content::MessageLoopRunner;
 243
 244   FakeDistiller* distiller = new FakeDistiller(
 245       false,
 246       distillation_done_runner->QuitClosure());
 247   EXPECT_CALL(*distiller_factory_, CreateDistillerImpl())
 248       .WillOnce(testing::Return(distiller));
 249
 250   // Setup observer to inspect the RenderViewHost after committed navigation.
 251   content::WebContents* contents =
 252       browser()->tab_strip_model()->GetActiveWebContents();
 253
 254   // Navigate to a URL and wait for the distiller to flush contents to the page.
 255   GURL url(dom_distiller::url_utils::GetDistillerViewUrlFromUrl(
 256       kDomDistillerScheme, GURL("http://urlthatlooksvalid.com")));
 257   chrome::NavigateParams params(browser(), url, ui::PAGE_TRANSITION_TYPED);
 258   chrome::Navigate(&params);
 259   distillation_done_runner->Run();
 260
 261   // Fake a multi-page response from distiller.
 262
 263   std::vector<scoped_refptr<ArticleDistillationUpdate::RefCountedPageProto> >
 264       update_pages;
 265   scoped_ptr<DistilledArticleProto> article(new DistilledArticleProto());
 266
 267   // Flush page 1.
 268   {
 269     scoped_refptr<base::RefCountedData<DistilledPageProto> > page_proto =
 270         new base::RefCountedData<DistilledPageProto>();
 271     page_proto->data.set_url("http://foobar.1.html");
 272     page_proto->data.set_html("<div>Page 1 content</div>");
 273     update_pages.push_back(page_proto);
 274     *(article->add_pages()) = page_proto->data;
 275
 276     ArticleDistillationUpdate update(update_pages, true, false);
 277     distiller->RunDistillerUpdateCallback(update);
 278
 279     // Wait for the page load to complete as the first page completes the root
 280     // document.
 281     content::WaitForLoadStop(contents);
 282
 283     std::string result;
 284     EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 285         contents, kGetLoadIndicatorClassName , &result));
 286     EXPECT_EQ("visible", result);
 287
 288     EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 289         contents, kGetContent , &result));
 290     EXPECT_THAT(result, HasSubstr("Page 1 content"));
 291     EXPECT_THAT(result, Not(HasSubstr("Page 2 content")));
 292   }
 293
 294   // Flush page 2.
 295   {
 296     scoped_refptr<base::RefCountedData<DistilledPageProto> > page_proto =
 297         new base::RefCountedData<DistilledPageProto>();
 298     page_proto->data.set_url("http://foobar.2.html");
 299     page_proto->data.set_html("<div>Page 2 content</div>");
 300     update_pages.push_back(page_proto);
 301     *(article->add_pages()) = page_proto->data;
 302
 303     ArticleDistillationUpdate update(update_pages, false, false);
 304     distiller->RunDistillerUpdateCallback(update);
 305
 306     std::string result;
 307     EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 308         contents, kGetLoadIndicatorClassName , &result));
 309     EXPECT_EQ("visible", result);
 310
 311     EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 312         contents, kGetContent , &result));
 313     EXPECT_THAT(result, HasSubstr("Page 1 content"));
 314     EXPECT_THAT(result, HasSubstr("Page 2 content"));
 315   }
 316
 317   // Complete the load.
 318   distiller->RunDistillerCallback(article.Pass());
 319   base::RunLoop().RunUntilIdle();
 320
 321   std::string result;
 322   EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 323       contents, kGetLoadIndicatorClassName, &result));
 324   EXPECT_EQ("hidden", result);
 325   EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 326       contents, kGetContent , &result));
 327   EXPECT_THAT(result, HasSubstr("Page 1 content"));
 328   EXPECT_THAT(result, HasSubstr("Page 2 content"));
 329 }
 330
 331 IN_PROC_BROWSER_TEST_F(DomDistillerViewerSourceBrowserTest, PrefChange) {
 332   expect_distillation_ = true;
 333   expect_distiller_page_ = true;
 334   GURL view_url("http://www.example.com/1");
 335   content::WebContents* contents =
 336       browser()->tab_strip_model()->GetActiveWebContents();
 337   const GURL url =
 338       url_utils::GetDistillerViewUrlFromUrl(kDomDistillerScheme, view_url);
 339   ViewSingleDistilledPage(url, "text/html");
 340   content::WaitForLoadStop(contents);
 341   std::string result;
 342   EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 343       contents, kGetBodyClass, &result));
 344   EXPECT_EQ("light sans-serif", result);
 345
 346   DistilledPagePrefs* distilled_page_prefs =
 347        DomDistillerServiceFactory::GetForBrowserContext(
 348             browser()->profile())->GetDistilledPagePrefs();
 349
 350   distilled_page_prefs->SetTheme(DistilledPagePrefs::DARK);
 351   base::RunLoop().RunUntilIdle();
 352   EXPECT_TRUE(content::ExecuteScriptAndExtractString(
 353       contents, kGetBodyClass, &result));
 354   EXPECT_EQ("dark sans-serif", result);
 355
 356   distilled_page_prefs->SetFontFamily(DistilledPagePrefs::SERIF);
 357   base::RunLoop().RunUntilIdle();
 358   EXPECT_TRUE(
 359       content::ExecuteScriptAndExtractString(contents, kGetBodyClass, &result));
 360   EXPECT_EQ("dark serif", result);
 361 }
 362
 363 }  // namespace dom_distiller