chrome/browser/ui/toolbar/toolbar_model_impl.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 "chrome/browser/ui/toolbar/toolbar_model_impl.h"
   6
   7 #include "base/prefs/pref_service.h"
   8 #include "base/strings/utf_string_conversions.h"
   9 #include "base/time/time.h"
  10 #include "chrome/browser/autocomplete/autocomplete_classifier.h"
  11 #include "chrome/browser/autocomplete/autocomplete_classifier_factory.h"
  12 #include "chrome/browser/autocomplete/chrome_autocomplete_scheme_classifier.h"
  13 #include "chrome/browser/profiles/profile.h"
  14 #include "chrome/browser/search/search.h"
  15 #include "chrome/browser/ssl/connection_security_helper.h"
  16 #include "chrome/browser/ui/toolbar/toolbar_model_delegate.h"
  17 #include "chrome/common/pref_names.h"
  18 #include "chrome/common/url_constants.h"
  19 #include "chrome/grit/generated_resources.h"
  20 #include "components/google/core/browser/google_util.h"
  21 #include "components/omnibox/autocomplete_input.h"
  22 #include "components/omnibox/autocomplete_match.h"
  23 #include "content/public/browser/cert_store.h"
  24 #include "content/public/browser/navigation_controller.h"
  25 #include "content/public/browser/navigation_entry.h"
  26 #include "content/public/browser/web_contents.h"
  27 #include "content/public/browser/web_ui.h"
  28 #include "content/public/common/content_constants.h"
  29 #include "content/public/common/ssl_status.h"
  30 #include "grit/components_scaled_resources.h"
  31 #include "grit/theme_resources.h"
  32 #include "net/base/net_util.h"
  33 #include "net/cert/cert_status_flags.h"
  34 #include "net/cert/x509_certificate.h"
  35 #include "net/ssl/ssl_connection_status_flags.h"
  36 #include "ui/base/l10n/l10n_util.h"
  37
  38 using content::NavigationController;
  39 using content::NavigationEntry;
  40 using content::WebContents;
  41
  42 ToolbarModelImpl::ToolbarModelImpl(ToolbarModelDelegate* delegate)
  43     : delegate_(delegate) {
  44 }
  45
  46 ToolbarModelImpl::~ToolbarModelImpl() {
  47 }
  48
  49 // ToolbarModelImpl Implementation.
  50 base::string16 ToolbarModelImpl::GetText() const {
  51   base::string16 search_terms(GetSearchTerms(false));
  52   if (!search_terms.empty())
  53     return search_terms;
  54
  55   return GetFormattedURL(NULL);
  56 }
  57
  58 base::string16 ToolbarModelImpl::GetFormattedURL(size_t* prefix_end) const {
  59   std::string languages;  // Empty if we don't have a |navigation_controller|.
  60   Profile* profile = GetProfile();
  61   if (profile)
  62     languages = profile->GetPrefs()->GetString(prefs::kAcceptLanguages);
  63
  64   GURL url(GetURL());
  65   if (url.spec().length() > content::kMaxURLDisplayChars)
  66     url = url.IsStandard() ? url.GetOrigin() : GURL(url.scheme() + ":");
  67   // Note that we can't unescape spaces here, because if the user copies this
  68   // and pastes it into another program, that program may think the URL ends at
  69   // the space.
  70   return AutocompleteInput::FormattedStringWithEquivalentMeaning(
  71       url, net::FormatUrl(url, languages, net::kFormatUrlOmitAll,
  72                           net::UnescapeRule::NORMAL, NULL, prefix_end, NULL),
  73       ChromeAutocompleteSchemeClassifier(profile));
  74 }
  75
  76 base::string16 ToolbarModelImpl::GetCorpusNameForMobile() const {
  77   if (!WouldPerformSearchTermReplacement(false))
  78     return base::string16();
  79   GURL url(GetURL());
  80   // If there is a query in the url fragment look for the corpus name there,
  81   // otherwise look for the corpus name in the query parameters.
  82   const std::string& query_str(google_util::HasGoogleSearchQueryParam(
  83       url.ref()) ? url.ref() : url.query());
  84   url::Component query(0, query_str.length()), key, value;
  85   const char kChipKey[] = "sboxchip";
  86   while (url::ExtractQueryKeyValue(query_str.c_str(), &query, &key, &value)) {
  87     if (key.is_nonempty() && query_str.substr(key.begin, key.len) == kChipKey) {
  88       return net::UnescapeAndDecodeUTF8URLComponent(
  89           query_str.substr(value.begin, value.len),
  90           net::UnescapeRule::NORMAL);
  91     }
  92   }
  93   return base::string16();
  94 }
  95
  96 GURL ToolbarModelImpl::GetURL() const {
  97   const NavigationController* navigation_controller = GetNavigationController();
  98   if (navigation_controller) {
  99     const NavigationEntry* entry = navigation_controller->GetVisibleEntry();
 100     if (entry)
 101       return ShouldDisplayURL() ? entry->GetVirtualURL() : GURL();
 102   }
 103
 104   return GURL(url::kAboutBlankURL);
 105 }
 106
 107 bool ToolbarModelImpl::WouldPerformSearchTermReplacement(
 108     bool ignore_editing) const {
 109   return !GetSearchTerms(ignore_editing).empty();
 110 }
 111
 112 ConnectionSecurityHelper::SecurityLevel ToolbarModelImpl::GetSecurityLevel(
 113     bool ignore_editing) const {
 114   // When editing, assume no security style.
 115   return (input_in_progress() && !ignore_editing)
 116              ? ConnectionSecurityHelper::NONE
 117              : ConnectionSecurityHelper::GetSecurityLevelForWebContents(
 118                    delegate_->GetActiveWebContents());
 119 }
 120
 121 int ToolbarModelImpl::GetIcon() const {
 122   if (WouldPerformSearchTermReplacement(false))
 123     return IDR_OMNIBOX_SEARCH_SECURED;
 124
 125   return GetIconForSecurityLevel(GetSecurityLevel(false));
 126 }
 127
 128 int ToolbarModelImpl::GetIconForSecurityLevel(
 129     ConnectionSecurityHelper::SecurityLevel level) const {
 130   switch (level) {
 131     case ConnectionSecurityHelper::NONE:
 132       return IDR_LOCATION_BAR_HTTP;
 133     case ConnectionSecurityHelper::EV_SECURE:
 134     case ConnectionSecurityHelper::SECURE:
 135       return IDR_OMNIBOX_HTTPS_VALID;
 136     case ConnectionSecurityHelper::SECURITY_WARNING:
 137       return IDR_OMNIBOX_HTTPS_WARNING;
 138     case ConnectionSecurityHelper::SECURITY_POLICY_WARNING:
 139       return IDR_OMNIBOX_HTTPS_POLICY_WARNING;
 140     case ConnectionSecurityHelper::SECURITY_ERROR:
 141       return IDR_OMNIBOX_HTTPS_INVALID;
 142   }
 143
 144   NOTREACHED();
 145   return IDR_LOCATION_BAR_HTTP;
 146 }
 147
 148 base::string16 ToolbarModelImpl::GetEVCertName() const {
 149   if (GetSecurityLevel(false) != ConnectionSecurityHelper::EV_SECURE)
 150     return base::string16();
 151
 152   // Note: Navigation controller and active entry are guaranteed non-NULL or
 153   // the security level would be NONE.
 154   scoped_refptr<net::X509Certificate> cert;
 155   content::CertStore::GetInstance()->RetrieveCert(
 156       GetNavigationController()->GetVisibleEntry()->GetSSL().cert_id, &cert);
 157
 158   // EV are required to have an organization name and country.
 159   DCHECK(!cert->subject().organization_names.empty());
 160   DCHECK(!cert->subject().country_name.empty());
 161   return l10n_util::GetStringFUTF16(
 162       IDS_SECURE_CONNECTION_EV,
 163       base::UTF8ToUTF16(cert->subject().organization_names[0]),
 164       base::UTF8ToUTF16(cert->subject().country_name));
 165 }
 166
 167 bool ToolbarModelImpl::ShouldDisplayURL() const {
 168   // Note: The order here is important.
 169   // - The WebUI test must come before the extension scheme test because there
 170   //   can be WebUIs that have extension schemes (e.g. the bookmark manager). In
 171   //   that case, we should prefer what the WebUI instance says.
 172   // - The view-source test must come before the NTP test because of the case
 173   //   of view-source:chrome://newtab, which should display its URL despite what
 174   //   chrome://newtab says.
 175   NavigationController* controller = GetNavigationController();
 176   NavigationEntry* entry = controller ? controller->GetVisibleEntry() : NULL;
 177   if (entry) {
 178     if (entry->IsViewSourceMode() ||
 179         entry->GetPageType() == content::PAGE_TYPE_INTERSTITIAL) {
 180       return true;
 181     }
 182
 183     GURL url = entry->GetURL();
 184     GURL virtual_url = entry->GetVirtualURL();
 185     if (url.SchemeIs(content::kChromeUIScheme) ||
 186         virtual_url.SchemeIs(content::kChromeUIScheme)) {
 187       if (!url.SchemeIs(content::kChromeUIScheme))
 188         url = virtual_url;
 189       return url.host() != chrome::kChromeUINewTabHost;
 190     }
 191   }
 192
 193   return !chrome::IsInstantNTP(delegate_->GetActiveWebContents());
 194 }
 195
 196 NavigationController* ToolbarModelImpl::GetNavigationController() const {
 197   // This |current_tab| can be NULL during the initialization of the
 198   // toolbar during window creation (i.e. before any tabs have been added
 199   // to the window).
 200   WebContents* current_tab = delegate_->GetActiveWebContents();
 201   return current_tab ? &current_tab->GetController() : NULL;
 202 }
 203
 204 Profile* ToolbarModelImpl::GetProfile() const {
 205   NavigationController* navigation_controller = GetNavigationController();
 206   return navigation_controller ?
 207       Profile::FromBrowserContext(navigation_controller->GetBrowserContext()) :
 208       NULL;
 209 }
 210
 211 base::string16 ToolbarModelImpl::GetSearchTerms(bool ignore_editing) const {
 212   if (!url_replacement_enabled() || (input_in_progress() && !ignore_editing))
 213     return base::string16();
 214
 215   const WebContents* web_contents = delegate_->GetActiveWebContents();
 216   base::string16 search_terms(chrome::GetSearchTerms(web_contents));
 217   if (search_terms.empty()) {
 218     // We mainly do this to enforce the subsequent DCHECK.
 219     return base::string16();
 220   }
 221
 222   // If the page is still loading and the security style is unknown, consider
 223   // the page secure.  Without this, after the user hit enter on some search
 224   // terms, the omnibox would change to displaying the loading URL before
 225   // changing back to the search terms once they could be extracted, thus
 226   // causing annoying flicker.
 227   DCHECK(web_contents);
 228   const NavigationController& nav_controller = web_contents->GetController();
 229   const NavigationEntry* entry = nav_controller.GetVisibleEntry();
 230   if ((entry != nav_controller.GetLastCommittedEntry()) &&
 231       (entry->GetSSL().security_style == content::SECURITY_STYLE_UNKNOWN))
 232     return search_terms;
 233
 234   // If the URL is using a Google base URL specified via the command line, we
 235   // bypass the security check below.
 236   if (entry &&
 237       google_util::StartsWithCommandLineGoogleBaseURL(entry->GetVirtualURL()))
 238     return search_terms;
 239
 240   // Otherwise, extract search terms for HTTPS pages that do not have a security
 241   // error.
 242   ConnectionSecurityHelper::SecurityLevel security_level =
 243       GetSecurityLevel(ignore_editing);
 244   return ((security_level == ConnectionSecurityHelper::NONE) ||
 245           (security_level == ConnectionSecurityHelper::SECURITY_ERROR))
 246              ? base::string16()
 247              : search_terms;
 248 }