Revert of Create signin component and componentize TokenWebData.

chrome/browser/webdata/token_service_table.cc

+// Copyright (c) 2011 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/webdata/token_service_table.h"
+
+#include <map>
+#include <string>
+
+#include "base/logging.h"
+#include "components/webdata/common/web_database.h"
+#include "components/webdata/encryptor/encryptor.h"
+#include "sql/statement.h"
+
+namespace {
+
+WebDatabaseTable::TypeKey GetKey() {
+  // We just need a unique constant. Use the address of a static that
+  // COMDAT folding won't touch in an optimizing linker.
+  static int table_key = 0;
+  return reinterpret_cast<void*>(&table_key);
+}
+
+}  // namespace
+
+TokenServiceTable* TokenServiceTable::FromWebDatabase(WebDatabase* db) {
+  return static_cast<TokenServiceTable*>(db->GetTable(GetKey()));
+
+}
+
+WebDatabaseTable::TypeKey TokenServiceTable::GetTypeKey() const {
+  return GetKey();
+}
+
+bool TokenServiceTable::Init(sql::Connection* db, sql::MetaTable* meta_table) {
+  WebDatabaseTable::Init(db, meta_table);
+  if (!db_->DoesTableExist("token_service")) {
+    if (!db_->Execute("CREATE TABLE token_service ("
+                      "service VARCHAR PRIMARY KEY NOT NULL,"
+                      "encrypted_token BLOB)")) {
+      NOTREACHED();
+      return false;
+    }
+  }
+  return true;
+}
+
+bool TokenServiceTable::IsSyncable() {
+  return true;
+}
+
+bool TokenServiceTable::MigrateToVersion(int version,
+                                         bool* update_compatible_version) {
+  return true;
+}
+
+bool TokenServiceTable::RemoveAllTokens() {
+  sql::Statement s(db_->GetUniqueStatement(
+      "DELETE FROM token_service"));
+
+  return s.Run();
+}
+
+bool TokenServiceTable::RemoveTokenForService(const std::string& service) {
+  sql::Statement s(db_->GetUniqueStatement(
+      "DELETE FROM token_service WHERE service = ?"));
+  s.BindString(0, service);
+
+  return s.Run();
+}
+
+bool TokenServiceTable::SetTokenForService(const std::string& service,
+                                           const std::string& token) {
+  std::string encrypted_token;
+  bool encrypted = Encryptor::EncryptString(token, &encrypted_token);
+  if (!encrypted) {
+    return false;
+  }
+
+  // Don't bother with a cached statement since this will be a relatively
+  // infrequent operation.
+  sql::Statement s(db_->GetUniqueStatement(
+      "INSERT OR REPLACE INTO token_service "
+      "(service, encrypted_token) VALUES (?, ?)"));
+  s.BindString(0, service);
+  s.BindBlob(1, encrypted_token.data(),
+             static_cast<int>(encrypted_token.length()));
+
+  return s.Run();
+}
+
+bool TokenServiceTable::GetAllTokens(
+    std::map<std::string, std::string>* tokens) {
+  sql::Statement s(db_->GetUniqueStatement(
+      "SELECT service, encrypted_token FROM token_service"));
+
+  if (!s.is_valid())
+    return false;
+
+  while (s.Step()) {
+    std::string encrypted_token;
+    std::string decrypted_token;
+    std::string service;
+    service = s.ColumnString(0);
+    bool entry_ok = !service.empty() &&
+                    s.ColumnBlobAsString(1, &encrypted_token);
+    if (entry_ok) {
+      Encryptor::DecryptString(encrypted_token, &decrypted_token);
+      (*tokens)[service] = decrypted_token;
+    } else {
+      NOTREACHED();
+      return false;
+    }
+  }
+  return true;
+}