Add a password handler to get the list of passwords in md-settings.

chrome/browser/ui/webui/settings/passwords_handler.cc

+// Copyright 2016 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/settings/passwords_handler.h"
+
+#include "base/bind.h"
+#include "base/prefs/pref_service.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/strings/utf_string_conversions.h"
+#include "build/build_config.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/pref_names.h"
+#include "chrome/grit/generated_resources.h"
+#include "components/autofill/core/common/password_form.h"
+#include "components/password_manager/core/browser/password_ui_utils.h"
+#include "components/url_formatter/url_formatter.h"
+#include "content/public/browser/web_contents.h"
+#include "content/public/browser/web_ui.h"
+#include "content/public/common/origin_util.h"
+#include "net/base/net_util.h"
+#include "ui/base/l10n/l10n_util.h"
+
+namespace settings {
+
+namespace {
+// The following constants should be synchronized with the constants in
+// chrome/browser/resources/options/password_manager_list.js.
+const char kOriginField[] = "origin";
+const char kShownUrlField[] = "shownUrl";
+const char kIsAndroidUriField[] = "isAndroidUri";
+const char kIsSecureField[] = "isSecure";
+const char kUsernameField[] = "username";
+const char kPasswordField[] = "password";
+const char kFederationField[] = "federation";
+
+// Copies from |form| to |entry| the origin, shown origin, whether the origin is
+// Android URI, and whether the origin is secure.
+void CopyOriginInfoOfPasswordForm(const autofill::PasswordForm& form,
+                                  const std::string& languages,
+                                  base::DictionaryValue* entry) {
+  entry->SetString(
+      kOriginField,
+      url_formatter::FormatUrl(
+          form.origin, languages, url_formatter::kFormatUrlOmitNothing,
+          net::UnescapeRule::SPACES, nullptr, nullptr, nullptr));
+  bool is_android_uri = false;
+  entry->SetString(kShownUrlField, password_manager::GetShownOrigin(
+                                       form, languages, &is_android_uri));
+  entry->SetBoolean(kIsAndroidUriField, is_android_uri);
+  entry->SetBoolean(kIsSecureField, content::IsOriginSecure(form.origin));
+}
+
+}  // namespace
+
+PasswordsHandler::PasswordsHandler() : password_manager_presenter_(this) {}
+
+PasswordsHandler::~PasswordsHandler() {}
+
+Profile* PasswordsHandler::GetProfile() {
+  return Profile::FromWebUI(web_ui());
+}
+
+#if !defined(OS_ANDROID)

[michaelpg, 2016/01/22 20:54:17]

GYP includes this in "chrome_browser_ui_non_mobile_sources", so OS_ANDROID
should never be defined.

[hcarmona, 2016/01/26 23:21:43]

Good to know, but this file is gone.

+gfx::NativeWindow PasswordsHandler::GetNativeWindow() const {
+  return web_ui()->GetWebContents()->GetTopLevelNativeWindow();
+}
+#endif
+
+void PasswordsHandler::RegisterMessages() {
+  password_manager_presenter_.Initialize();
+  web_ui()->RegisterMessageCallback(
+      "updatePasswordLists",
+      base::Bind(&PasswordsHandler::HandleUpdatePasswordLists,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "removeSavedPassword",

[michaelpg, 2016/01/22 20:54:17]

why reimplement these instead of using chrome.passwordsPrivate?

[hcarmona, 2016/01/26 23:21:43]

Done. Implemented using chrome.passwordsPrivate.

+      base::Bind(&PasswordsHandler::HandleRemoveSavedPassword,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "removePasswordException",
+      base::Bind(&PasswordsHandler::HandleRemovePasswordException,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(
+      "requestShowPassword",
+      base::Bind(&PasswordsHandler::HandleRequestShowPassword,
+                 base::Unretained(this)));
+}
+
+void PasswordsHandler::HandleRemoveSavedPassword(const base::ListValue* args) {

[michaelpg, 2016/01/22 20:54:17]

nit: order according to header file

[hcarmona, 2016/01/26 23:21:43]

Acknowledged.

+  std::string string_value = base::UTF16ToUTF8(ExtractStringValue(args));

[michaelpg, 2016/01/22 20:54:17]

here and below: why not pass as an integer?

[hcarmona, 2016/01/26 23:21:43]

Acknowledged.

+  int index;
+  if (base::StringToInt(string_value, &index) && index >= 0) {

[michaelpg, 2016/01/22 20:54:17]

here and below: StringToUint?
DCHECK if false?

[hcarmona, 2016/01/26 23:21:43]

Acknowledged.

+    password_manager_presenter_.RemoveSavedPassword(static_cast<size_t>(index));
+  }
+}
+
+void PasswordsHandler::HandleRemovePasswordException(
+    const base::ListValue* args) {
+  std::string string_value = base::UTF16ToUTF8(ExtractStringValue(args));
+  int index;
+  if (base::StringToInt(string_value, &index) && index >= 0) {
+    password_manager_presenter_.RemovePasswordException(
+        static_cast<size_t>(index));
+  }
+}
+
+void PasswordsHandler::HandleRequestShowPassword(const base::ListValue* args) {
+  int index;
+  if (!ExtractIntegerValue(args, &index))
+    NOTREACHED();
+
+  password_manager_presenter_.RequestShowPassword(static_cast<size_t>(index));
+}
+
+void PasswordsHandler::ShowPassword(size_t index,
+                                    const std::string& origin_url,
+                                    const std::string& username,
+                                    const base::string16& password_value) {
+  // Call back the front end to reveal the password.
+  web_ui()->CallJavascriptFunction(
+      "settings.PasswordsPrivateApi.showPassword",
+      base::FundamentalValue(static_cast<int>(index)),
+      base::StringValue(password_value));
+}
+
+void PasswordsHandler::HandleUpdatePasswordLists(const base::ListValue* args) {
+  password_manager_presenter_.UpdatePasswordLists();
+}
+
+void PasswordsHandler::SetPasswordList(
+    const std::vector<scoped_ptr<autofill::PasswordForm>>& password_list,
+    bool show_passwords) {
+  base::ListValue entries;
+  languages_ = GetProfile()->GetPrefs()->GetString(prefs::kAcceptLanguages);
+  base::string16 placeholder(base::ASCIIToUTF16("        "));
+  for (const auto& saved_password : password_list) {
+    scoped_ptr<base::DictionaryValue> entry(new base::DictionaryValue);
+    CopyOriginInfoOfPasswordForm(*saved_password, languages_, entry.get());
+
+    entry->SetString(kUsernameField, saved_password->username_value);
+    if (show_passwords) {
+      entry->SetString(kPasswordField, saved_password->password_value);
+    } else {
+      // Use a placeholder value with the same length as the password.
+      entry->SetString(
+          kPasswordField,
+          base::string16(saved_password->password_value.length(), ' '));
+    }
+    const GURL& federation_url = saved_password->federation_url;
+    if (!federation_url.is_empty()) {
+      entry->SetString(
+          kFederationField,
+          l10n_util::GetStringFUTF16(IDS_PASSWORDS_VIA_FEDERATION,
+                                     base::UTF8ToUTF16(federation_url.host())));
+    }
+
+    entries.Append(entry.release());
+  }
+
+  web_ui()->CallJavascriptFunction(
+      "settings.PasswordsPrivateApi.setSavedPasswordsList", entries);
+}
+
+void PasswordsHandler::SetPasswordExceptionList(
+    const std::vector<scoped_ptr<autofill::PasswordForm>>&
+        password_exception_list) {
+  base::ListValue entries;
+  for (const auto& exception : password_exception_list) {
+    scoped_ptr<base::DictionaryValue> entry(new base::DictionaryValue);
+    CopyOriginInfoOfPasswordForm(*exception, languages_, entry.get());
+    entries.Append(entry.release());
+  }
+
+  web_ui()->CallJavascriptFunction(
+      "settings.PasswordsPrivateApi.setPasswordExceptionsList", entries);
+}
+
+}  // namespace settings