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// Copyright 2012 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/toolbar/toolbar_model_impl.h"
#include "base/command_line.h"
#include "base/prefs/pref_service.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/autocomplete/autocomplete_classifier.h"
#include "chrome/browser/autocomplete/autocomplete_classifier_factory.h"
#include "chrome/browser/autocomplete/autocomplete_input.h"
#include "chrome/browser/autocomplete/autocomplete_match.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/ssl/ssl_error_info.h"
#include "chrome/browser/ui/search/search.h"
#include "chrome/browser/ui/toolbar/toolbar_model_delegate.h"
#include "chrome/common/chrome_constants.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "content/public/browser/cert_store.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_ui.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/ssl_status.h"
#include "extensions/common/constants.h"
#include "grit/generated_resources.h"
#include "grit/theme_resources.h"
#include "net/base/cert_status_flags.h"
#include "net/base/net_util.h"
#include "net/base/x509_certificate.h"
#include "ui/base/l10n/l10n_util.h"
using content::NavigationController;
using content::NavigationEntry;
using content::SSLStatus;
using content::WebContents;
ToolbarModelImpl::ToolbarModelImpl(ToolbarModelDelegate* delegate)
: delegate_(delegate),
input_in_progress_(false) {
}
ToolbarModelImpl::~ToolbarModelImpl() {
}
ToolbarModel::SecurityLevel ToolbarModelImpl::GetSecurityLevelForWebContents(
content::WebContents* web_contents) {
if (!web_contents)
return NONE;
NavigationEntry* entry = web_contents->GetController().GetVisibleEntry();
if (!entry)
return NONE;
const SSLStatus& ssl = entry->GetSSL();
switch (ssl.security_style) {
case content::SECURITY_STYLE_UNKNOWN:
case content::SECURITY_STYLE_UNAUTHENTICATED:
return NONE;
case content::SECURITY_STYLE_AUTHENTICATION_BROKEN:
return SECURITY_ERROR;
case content::SECURITY_STYLE_AUTHENTICATED:
if (!!(ssl.content_status & SSLStatus::DISPLAYED_INSECURE_CONTENT))
return SECURITY_WARNING;
if (net::IsCertStatusError(ssl.cert_status)) {
DCHECK(net::IsCertStatusMinorError(ssl.cert_status));
return SECURITY_WARNING;
}
if ((ssl.cert_status & net::CERT_STATUS_IS_EV) &&
content::CertStore::GetInstance()->RetrieveCert(ssl.cert_id, NULL))
return EV_SECURE;
return SECURE;
default:
NOTREACHED();
return NONE;
}
}
// ToolbarModelImpl Implementation.
string16 ToolbarModelImpl::GetText(
bool display_search_urls_as_search_terms) const {
if (display_search_urls_as_search_terms) {
string16 search_terms = GetSearchTerms();
if (!search_terms.empty())
return search_terms;
}
std::string languages; // Empty if we don't have a |navigation_controller|.
Profile* profile = GetProfile();
if (profile)
languages = profile->GetPrefs()->GetString(prefs::kAcceptLanguages);
GURL url(GetURL());
if (url.spec().length() > content::kMaxURLDisplayChars)
url = url.IsStandard() ? url.GetOrigin() : GURL(url.scheme() + ":");
// Note that we can't unescape spaces here, because if the user copies this
// and pastes it into another program, that program may think the URL ends at
// the space.
return AutocompleteInput::FormattedStringWithEquivalentMeaning(
url, net::FormatUrl(url, languages, net::kFormatUrlOmitAll,
net::UnescapeRule::NORMAL, NULL, NULL, NULL));
}
GURL ToolbarModelImpl::GetURL() const {
const NavigationController* navigation_controller = GetNavigationController();
if (navigation_controller) {
const NavigationEntry* entry = navigation_controller->GetVisibleEntry();
if (entry)
return ShouldDisplayURL() ? entry->GetVirtualURL() : GURL();
}
return GURL(chrome::kAboutBlankURL);
}
bool ToolbarModelImpl::WouldReplaceSearchURLWithSearchTerms() const {
return !GetSearchTerms().empty();
}
bool ToolbarModelImpl::ShouldDisplayURL() const {
// Note: The order here is important.
// - The WebUI test must come before the extension scheme test because there
// can be WebUIs that have extension schemes (e.g. the bookmark manager). In
// that case, we should prefer what the WebUI instance says.
// - The view-source test must come before the WebUI test because of the case
// of view-source:chrome://newtab, which should display its URL despite what
// chrome://newtab's WebUI says.
NavigationController* controller = GetNavigationController();
NavigationEntry* entry = controller ? controller->GetVisibleEntry() : NULL;
if (entry) {
if (entry->IsViewSourceMode() ||
entry->GetPageType() == content::PAGE_TYPE_INTERSTITIAL) {
return true;
}
}
WebContents* web_contents = delegate_->GetActiveWebContents();
if (web_contents && web_contents->GetWebUIForCurrentState())
return !web_contents->GetWebUIForCurrentState()->ShouldHideURL();
if (entry && entry->GetURL().SchemeIs(extensions::kExtensionScheme))
return false;
#if defined(OS_CHROMEOS)
if (entry && entry->GetURL().SchemeIs(chrome::kDriveScheme))
return false;
#endif
if (chrome::search::IsInstantNTP(web_contents))
return false;
return true;
}
ToolbarModel::SecurityLevel ToolbarModelImpl::GetSecurityLevel() const {
if (input_in_progress_) // When editing, assume no security style.
return NONE;
return GetSecurityLevelForWebContents(delegate_->GetActiveWebContents());
}
int ToolbarModelImpl::GetIcon() const {
if (WouldReplaceSearchURLWithSearchTerms())
return IDR_OMNIBOX_SEARCH;
static int icon_ids[NUM_SECURITY_LEVELS] = {
IDR_LOCATION_BAR_HTTP,
IDR_OMNIBOX_HTTPS_VALID,
IDR_OMNIBOX_HTTPS_VALID,
IDR_OMNIBOX_HTTPS_WARNING,
IDR_OMNIBOX_HTTPS_INVALID,
};
DCHECK(arraysize(icon_ids) == NUM_SECURITY_LEVELS);
return icon_ids[GetSecurityLevel()];
}
string16 ToolbarModelImpl::GetEVCertName() const {
DCHECK_EQ(GetSecurityLevel(), EV_SECURE);
scoped_refptr<net::X509Certificate> cert;
// Note: Navigation controller and active entry are guaranteed non-NULL or
// the security level would be NONE.
content::CertStore::GetInstance()->RetrieveCert(
GetNavigationController()->GetVisibleEntry()->GetSSL().cert_id, &cert);
return GetEVCertName(*cert);
}
// static
string16 ToolbarModelImpl::GetEVCertName(const net::X509Certificate& cert) {
// EV are required to have an organization name and country.
if (cert.subject().organization_names.empty() ||
cert.subject().country_name.empty()) {
NOTREACHED();
return string16();
}
return l10n_util::GetStringFUTF16(
IDS_SECURE_CONNECTION_EV,
UTF8ToUTF16(cert.subject().organization_names[0]),
UTF8ToUTF16(cert.subject().country_name));
}
void ToolbarModelImpl::SetInputInProgress(bool value) {
input_in_progress_ = value;
}
bool ToolbarModelImpl::GetInputInProgress() const {
return input_in_progress_;
}
NavigationController* ToolbarModelImpl::GetNavigationController() const {
// This |current_tab| can be NULL during the initialization of the
// toolbar during window creation (i.e. before any tabs have been added
// to the window).
WebContents* current_tab = delegate_->GetActiveWebContents();
return current_tab ? ¤t_tab->GetController() : NULL;
}
Profile* ToolbarModelImpl::GetProfile() const {
NavigationController* navigation_controller = GetNavigationController();
return navigation_controller ?
Profile::FromBrowserContext(navigation_controller->GetBrowserContext()) :
NULL;
}
string16 ToolbarModelImpl::GetSearchTerms() const {
const WebContents* contents = delegate_->GetActiveWebContents();
string16 search_terms = chrome::search::GetSearchTerms(contents);
// Don't extract search terms that the omnibox would treat as a navigation.
// This might confuse users into believing that the search terms were the
// URL of the current page, and could cause problems if users hit enter in
// the omnibox expecting to reload the page.
if (!search_terms.empty()) {
AutocompleteMatch match;
Profile* profile =
Profile::FromBrowserContext(contents->GetBrowserContext());
AutocompleteClassifierFactory::GetForProfile(profile)->Classify(
search_terms, string16(), false, false, &match, NULL);
if (!AutocompleteMatch::IsSearchType(match.type))
search_terms.clear();
}
return search_terms;
}
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