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components/enhanced_bookmarks/bookmark_server_service.cc

Index: components/enhanced_bookmarks/bookmark_server_service.cc
diff --git a/components/enhanced_bookmarks/bookmark_server_service.cc b/components/enhanced_bookmarks/bookmark_server_service.cc
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+++ b/components/enhanced_bookmarks/bookmark_server_service.cc
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+// 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 "components/enhanced_bookmarks/bookmark_server_service.h"
+
+#include "base/auto_reset.h"
+#include "components/bookmarks/browser/bookmark_model.h"
+#include "components/bookmarks/browser/bookmark_model_observer.h"
+#include "components/enhanced_bookmarks/metadata_accessor.h"
+#include "components/signin/core/browser/profile_oauth2_token_service.h"
+#include "components/signin/core/browser/signin_manager_base.h"
+#include "google_apis/gaia/gaia_constants.h"
+#include "net/base/load_flags.h"
+#include "net/url_request/url_request_context_getter.h"
+#include "ui/base/models/tree_node_iterator.h"
+
+namespace enhanced_bookmarks {
+
+BookmarkServerService::BookmarkServerService(
+    scoped_refptr<net::URLRequestContextGetter> request_context_getter,
+    ProfileOAuth2TokenService* token_service,
+    SigninManagerBase* signin_manager,
+    BookmarkModel* bookmark_model)
+    : OAuth2TokenService::Consumer("bookmark_server_service"),
+      bookmark_model_(bookmark_model),
+      token_service_(token_service),
+      signin_manager_(signin_manager),
+      request_context_getter_(request_context_getter),
+      inhibit_change_notifications_(false) {
+  DCHECK(request_context_getter.get());
+  DCHECK(token_service);
+  DCHECK(signin_manager);
+  DCHECK(bookmark_model);
+  bookmark_model_->AddObserver(this);
+  if (bookmark_model_->loaded())
+    BuildIdMap();
+}
+
+BookmarkServerService::~BookmarkServerService() {
+  bookmark_model_->RemoveObserver(this);
+}
+
+void BookmarkServerService::AddObserver(
+    BookmarkServerServiceObserver* observer) {
+  observers_.AddObserver(observer);
+}
+
+void BookmarkServerService::RemoveObserver(
+    BookmarkServerServiceObserver* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+void BookmarkServerService::BuildIdMap() {
+  ui::TreeNodeIterator<const BookmarkNode> iterator(
+      bookmark_model_->root_node());
+
+  while (iterator.has_next()) {
+    const BookmarkNode* bookmark = iterator.Next();
+    if (bookmark_model_->is_permanent_node(bookmark))
+      continue;
+    // RemoteIdFromBookmark() will create the ID if it doesn't exists yet.
+    std::string starid =
+        enhanced_bookmarks::RemoteIdFromBookmark(bookmark_model_, bookmark);
+    if (bookmark->is_url()) {
+      starsid_to_bookmark_[starid] = bookmark;
+    }
+  }
+}
+
+const BookmarkNode* BookmarkServerService::BookmarkForRemoteId(
+    const std::string& remote_id) const {
+  std::map<std::string, const BookmarkNode*>::const_iterator it =
+      starsid_to_bookmark_.find(remote_id);
+  if (it == starsid_to_bookmark_.end())
+    return NULL;
+  return it->second;
+}
+
+const std::string BookmarkServerService::RemoteIDForBookmark(
+    const BookmarkNode* bookmark) const {
+  return enhanced_bookmarks::RemoteIdFromBookmark(bookmark_model_, bookmark);
+}
+
+void BookmarkServerService::Notify() {
+  FOR_EACH_OBSERVER(BookmarkServerServiceObserver, observers_, OnChange(this));
+}
+
+void BookmarkServerService::TriggerTokenRequest(bool cancel_previous) {
+  if (cancel_previous)
+    url_fetcher_.reset();
+
+  if (token_request_ || url_fetcher_)
+    return;  // Fetcher is already running.
+
+  const std::string username(signin_manager_->GetAuthenticatedUsername());
+  if (!username.length()) {
+    // User is not signed in.
+    CleanAfterFailure();
+    Notify();
+    return;
+  }
+  // Find a token.
+  OAuth2TokenService::ScopeSet scopes;
+  scopes.insert(GaiaConstants::kChromeSyncOAuth2Scope);
+  token_request_ = token_service_->StartRequest(username, scopes, this);
+}
+
+//
+// OAuth2AccessTokenConsumer methods.
+//
+void BookmarkServerService::OnGetTokenSuccess(
+    const OAuth2TokenService::Request* request,
+    const std::string& access_token,
+    const base::Time& expiration_time) {
+  url_fetcher_.reset(CreateFetcher());
+  // Free the token request.
+  token_request_.reset();
+
+  if (!url_fetcher_) {
+    CleanAfterFailure();
+    Notify();
+    return;
+  }
+  url_fetcher_->SetRequestContext(request_context_getter_.get());
+
+  // Add the token.
+  std::string headers;
+  headers = "Authorization: Bearer ";
+  headers += access_token;
+  headers += "\r\n";
+  url_fetcher_->SetExtraRequestHeaders(headers);
+
+  // Do not pollute the cookie store with cruft, or mix the users cookie in this
+  // request.
+  url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
+                             net::LOAD_DO_NOT_SAVE_COOKIES);
+
+  url_fetcher_->Start();
+}
+
+void BookmarkServerService::OnGetTokenFailure(
+    const OAuth2TokenService::Request* request,
+    const GoogleServiceAuthError& error) {
+  // Free the request.
+  token_request_.reset();
+  CleanAfterFailure();
+  Notify();
+}
+
+//
+// net::URLFetcherDelegate methods.
+//
+void BookmarkServerService::OnURLFetchComplete(const net::URLFetcher* source) {
+  scoped_ptr<net::URLFetcher> url_fetcher(url_fetcher_.Pass());
+  std::string response;
+  bool should_notify = true;
+
+  if (url_fetcher->GetResponseCode() != 200 ||
+      !url_fetcher->GetResponseAsString(&response) ||
+      !ProcessResponse(response, &should_notify)) {
+    CleanAfterFailure();
+  }
+  if (should_notify)
+    Notify();
+}
+
+//
+// BookmarkModelObserver methods.
+//
+void BookmarkServerService::BookmarkModelLoaded(BookmarkModel* model,
+                                                bool ids_reassigned) {
+  BuildIdMap();
+}
+
+void BookmarkServerService::BookmarkNodeAdded(BookmarkModel* model,
+                                              const BookmarkNode* parent,
+                                              int index) {
+  DCHECK(!inhibit_change_notifications_);
+  const BookmarkNode* bookmark = parent->GetChild(index);
+  if (!bookmark->is_url())
+    return;
+
+  base::AutoReset<bool> inhibitor(&inhibit_change_notifications_, true);
+  std::string starid =
+      enhanced_bookmarks::RemoteIdFromBookmark(model, bookmark);
+  starsid_to_bookmark_[starid] = bookmark;
+}
+
+void BookmarkServerService::BookmarkNodeRemoved(
+    BookmarkModel* model,
+    const BookmarkNode* parent,
+    int old_index,
+    const BookmarkNode* node,
+    const std::set<GURL>& removed_urls) {
+  DCHECK(!inhibit_change_notifications_);
+  if (!node->is_url())
+    return;
+  base::AutoReset<bool> inhibitor(&inhibit_change_notifications_, true);
+  std::string starid = enhanced_bookmarks::RemoteIdFromBookmark(model, node);
+  starsid_to_bookmark_.erase(starid);
+}
+
+void BookmarkServerService::OnWillChangeBookmarkMetaInfo(
+    BookmarkModel* model,
+    const BookmarkNode* node) {
+  if (!node->is_url() || inhibit_change_notifications_)
+    return;
+  base::AutoReset<bool> inhibitor(&inhibit_change_notifications_, true);
+  std::string starid = enhanced_bookmarks::RemoteIdFromBookmark(model, node);
+  starsid_to_bookmark_.erase(starid);
+}
+
+void BookmarkServerService::BookmarkMetaInfoChanged(BookmarkModel* model,
+                                                    const BookmarkNode* node) {
+  if (!node->is_url() || inhibit_change_notifications_)
+    return;
+
+  std::string starid = enhanced_bookmarks::RemoteIdFromBookmark(model, node);
+  starsid_to_bookmark_[starid] = node;
+}
+
+void BookmarkServerService::BookmarkAllUserNodesRemoved(
+    BookmarkModel* model,
+    const std::set<GURL>& removed_urls) {
+  DCHECK(!inhibit_change_notifications_);
+  starsid_to_bookmark_.clear();
+}
+
+SigninManagerBase* BookmarkServerService::GetSigninManager() {
+  DCHECK(signin_manager_);
+  return signin_manager_;
+}
+
+}  // namespace enhanced_bookmarks