Include all dupe types (event when value is zero) in scan stats.

[chromium-blink-merge.git] / components / autofill / core / browser / webdata / autofill_table.cc

// Copyright 2013 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/autofill/core/browser/webdata/autofill_table.h"

#include <algorithm>
#include <cmath>
#include <limits>
#include <map>
#include <set>
#include <string>
#include <vector>

#include "base/command_line.h"
#include "base/guid.h"
#include "base/i18n/case_conversion.h"
#include "base/logging.h"
#include "base/numerics/safe_conversions.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/utf_string_conversions.h"
#include "base/time/time.h"
#include "components/autofill/core/browser/autofill_country.h"
#include "components/autofill/core/browser/autofill_profile.h"
#include "components/autofill/core/browser/autofill_type.h"
#include "components/autofill/core/browser/credit_card.h"
#include "components/autofill/core/browser/personal_data_manager.h"
#include "components/autofill/core/browser/webdata/autofill_change.h"
#include "components/autofill/core/browser/webdata/autofill_entry.h"
#include "components/autofill/core/common/autofill_switches.h"
#include "components/autofill/core/common/form_field_data.h"
#include "components/os_crypt/os_crypt.h"
#include "components/webdata/common/web_database.h"
#include "sql/statement.h"
#include "sql/transaction.h"
#include "ui/base/l10n/l10n_util.h"
#include "url/gurl.h"

using base::ASCIIToUTF16;
using base::Time;

namespace autofill {
namespace {

// The period after which autocomplete entries should expire in days.
const int64 kExpirationPeriodInDays = 60;

template<typename T>
T* address_of(T& v) {
  return &v;
}

// Helper struct for AutofillTable::RemoveFormElementsAddedBetween().
// Contains all the necessary fields to update a row in the 'autofill' table.
struct AutofillUpdate {
  base::string16 name;
  base::string16 value;
  time_t date_created;
  time_t date_last_used;
  int count;
};

// Rounds a positive floating point number to the nearest integer.
int Round(float f) {
  DCHECK_GE(f, 0.f);
  return base::checked_cast<int>(std::floor(f + 0.5f));
}

// Returns the |data_model|'s value corresponding to the |type|, trimmed to the
// maximum length that can be stored in a column of the Autofill database.
base::string16 GetInfo(const AutofillDataModel& data_model,
                       ServerFieldType type) {
  base::string16 data = data_model.GetRawInfo(type);
  if (data.size() > AutofillTable::kMaxDataLength)
    return data.substr(0, AutofillTable::kMaxDataLength);

  return data;
}

void BindAutofillProfileToStatement(const AutofillProfile& profile,
                                    const base::Time& modification_date,
                                    sql::Statement* s) {
  DCHECK(base::IsValidGUID(profile.guid()));
  int index = 0;
  s->BindString(index++, profile.guid());

  s->BindString16(index++, GetInfo(profile, COMPANY_NAME));
  s->BindString16(index++, GetInfo(profile, ADDRESS_HOME_STREET_ADDRESS));
  s->BindString16(index++, GetInfo(profile, ADDRESS_HOME_DEPENDENT_LOCALITY));
  s->BindString16(index++, GetInfo(profile, ADDRESS_HOME_CITY));
  s->BindString16(index++, GetInfo(profile, ADDRESS_HOME_STATE));
  s->BindString16(index++, GetInfo(profile, ADDRESS_HOME_ZIP));
  s->BindString16(index++, GetInfo(profile, ADDRESS_HOME_SORTING_CODE));
  s->BindString16(index++, GetInfo(profile, ADDRESS_HOME_COUNTRY));
  s->BindInt64(index++, profile.use_count());
  s->BindInt64(index++, profile.use_date().ToTimeT());
  s->BindInt64(index++, modification_date.ToTimeT());
  s->BindString(index++, profile.origin());
  s->BindString(index++, profile.language_code());
}

scoped_ptr<AutofillProfile> AutofillProfileFromStatement(
    const sql::Statement& s) {
  scoped_ptr<AutofillProfile> profile(new AutofillProfile);
  int index = 0;
  profile->set_guid(s.ColumnString(index++));
  DCHECK(base::IsValidGUID(profile->guid()));

  profile->SetRawInfo(COMPANY_NAME, s.ColumnString16(index++));
  profile->SetRawInfo(ADDRESS_HOME_STREET_ADDRESS, s.ColumnString16(index++));
  profile->SetRawInfo(ADDRESS_HOME_DEPENDENT_LOCALITY,
                      s.ColumnString16(index++));
  profile->SetRawInfo(ADDRESS_HOME_CITY, s.ColumnString16(index++));
  profile->SetRawInfo(ADDRESS_HOME_STATE, s.ColumnString16(index++));
  profile->SetRawInfo(ADDRESS_HOME_ZIP, s.ColumnString16(index++));
  profile->SetRawInfo(ADDRESS_HOME_SORTING_CODE, s.ColumnString16(index++));
  profile->SetRawInfo(ADDRESS_HOME_COUNTRY, s.ColumnString16(index++));
  profile->set_use_count(s.ColumnInt64(index++));
  profile->set_use_date(base::Time::FromTimeT(s.ColumnInt64(index++)));
  profile->set_modification_date(base::Time::FromTimeT(s.ColumnInt64(index++)));
  profile->set_origin(s.ColumnString(index++));
  profile->set_language_code(s.ColumnString(index++));

  return profile.Pass();
}

void BindEncryptedCardToColumn(sql::Statement* s,
                                 int column_index,
                                 const base::string16& number) {
  std::string encrypted_data;
  OSCrypt::EncryptString16(number, &encrypted_data);
  s->BindBlob(column_index, encrypted_data.data(),
              static_cast<int>(encrypted_data.length()));

}

void BindCreditCardToStatement(const CreditCard& credit_card,
                               const base::Time& modification_date,
                               sql::Statement* s) {
  DCHECK(base::IsValidGUID(credit_card.guid()));
  int index = 0;
  s->BindString(index++, credit_card.guid());

  s->BindString16(index++, GetInfo(credit_card, CREDIT_CARD_NAME));
  s->BindString16(index++, GetInfo(credit_card, CREDIT_CARD_EXP_MONTH));
  s->BindString16(index++, GetInfo(credit_card, CREDIT_CARD_EXP_4_DIGIT_YEAR));
  BindEncryptedCardToColumn(s, index++,
                            credit_card.GetRawInfo(CREDIT_CARD_NUMBER));

  s->BindInt64(index++, credit_card.use_count());
  s->BindInt64(index++, credit_card.use_date().ToTimeT());
  s->BindInt64(index++, modification_date.ToTimeT());
  s->BindString(index++, credit_card.origin());
}

base::string16 UnencryptedCardFromColumn(const sql::Statement& s,
                                         int column_index) {
  base::string16 credit_card_number;
  int encrypted_number_len = s.ColumnByteLength(column_index);
  if (encrypted_number_len) {
    std::string encrypted_number;
    encrypted_number.resize(encrypted_number_len);
    memcpy(&encrypted_number[0], s.ColumnBlob(column_index),
           encrypted_number_len);
    OSCrypt::DecryptString16(encrypted_number, &credit_card_number);
  }
  return credit_card_number;
}

scoped_ptr<CreditCard> CreditCardFromStatement(const sql::Statement& s) {
  scoped_ptr<CreditCard> credit_card(new CreditCard);

  int index = 0;
  credit_card->set_guid(s.ColumnString(index++));
  DCHECK(base::IsValidGUID(credit_card->guid()));

  credit_card->SetRawInfo(CREDIT_CARD_NAME, s.ColumnString16(index++));
  credit_card->SetRawInfo(CREDIT_CARD_EXP_MONTH, s.ColumnString16(index++));
  credit_card->SetRawInfo(CREDIT_CARD_EXP_4_DIGIT_YEAR,
                          s.ColumnString16(index++));
  credit_card->SetRawInfo(CREDIT_CARD_NUMBER,
                          UnencryptedCardFromColumn(s, index++));
  credit_card->set_use_count(s.ColumnInt64(index++));
  credit_card->set_use_date(base::Time::FromTimeT(s.ColumnInt64(index++)));
  credit_card->set_modification_date(
      base::Time::FromTimeT(s.ColumnInt64(index++)));
  credit_card->set_origin(s.ColumnString(index++));

  return credit_card.Pass();
}

bool AddAutofillProfileNamesToProfile(sql::Connection* db,
                                      AutofillProfile* profile) {
  sql::Statement s(db->GetUniqueStatement(
      "SELECT guid, first_name, middle_name, last_name, full_name "
      "FROM autofill_profile_names "
      "WHERE guid=?"));
  s.BindString(0, profile->guid());

  if (!s.is_valid())
    return false;

  std::vector<base::string16> first_names;
  std::vector<base::string16> middle_names;
  std::vector<base::string16> last_names;
  std::vector<base::string16> full_names;
  while (s.Step()) {
    DCHECK_EQ(profile->guid(), s.ColumnString(0));
    first_names.push_back(s.ColumnString16(1));
    middle_names.push_back(s.ColumnString16(2));
    last_names.push_back(s.ColumnString16(3));
    full_names.push_back(s.ColumnString16(4));
  }
  if (!s.Succeeded())
    return false;

  profile->SetRawMultiInfo(NAME_FIRST, first_names);
  profile->SetRawMultiInfo(NAME_MIDDLE, middle_names);
  profile->SetRawMultiInfo(NAME_LAST, last_names);
  profile->SetRawMultiInfo(NAME_FULL, full_names);
  return true;
}

bool AddAutofillProfileEmailsToProfile(sql::Connection* db,
                                       AutofillProfile* profile) {
  sql::Statement s(db->GetUniqueStatement(
      "SELECT guid, email "
      "FROM autofill_profile_emails "
      "WHERE guid=?"));
  s.BindString(0, profile->guid());

  if (!s.is_valid())
    return false;

  std::vector<base::string16> emails;
  while (s.Step()) {
    DCHECK_EQ(profile->guid(), s.ColumnString(0));
    emails.push_back(s.ColumnString16(1));
  }
  if (!s.Succeeded())
    return false;

  profile->SetRawMultiInfo(EMAIL_ADDRESS, emails);
  return true;
}

bool AddAutofillProfilePhonesToProfile(sql::Connection* db,
                                       AutofillProfile* profile) {
  sql::Statement s(db->GetUniqueStatement(
      "SELECT guid, number "
      "FROM autofill_profile_phones "
      "WHERE guid=?"));
  s.BindString(0, profile->guid());

  if (!s.is_valid())
    return false;

  std::vector<base::string16> numbers;
  while (s.Step()) {
    DCHECK_EQ(profile->guid(), s.ColumnString(0));
    numbers.push_back(s.ColumnString16(1));
  }
  if (!s.Succeeded())
    return false;

  profile->SetRawMultiInfo(PHONE_HOME_WHOLE_NUMBER, numbers);
  return true;
}

bool AddAutofillProfileNames(const AutofillProfile& profile,
                             sql::Connection* db) {
  std::vector<base::string16> first_names;
  profile.GetRawMultiInfo(NAME_FIRST, &first_names);
  std::vector<base::string16> middle_names;
  profile.GetRawMultiInfo(NAME_MIDDLE, &middle_names);
  std::vector<base::string16> last_names;
  profile.GetRawMultiInfo(NAME_LAST, &last_names);
  std::vector<base::string16> full_names;
  profile.GetRawMultiInfo(NAME_FULL, &full_names);
  DCHECK_EQ(first_names.size(), middle_names.size());
  DCHECK_EQ(first_names.size(), last_names.size());
  DCHECK_EQ(first_names.size(), full_names.size());

  for (size_t i = 0; i < first_names.size(); ++i) {
    // Add the new name.
    sql::Statement s(db->GetUniqueStatement(
        "INSERT INTO autofill_profile_names"
        " (guid, first_name, middle_name, last_name, full_name) "
        "VALUES (?,?,?,?,?)"));
    s.BindString(0, profile.guid());
    s.BindString16(1, first_names[i]);
    s.BindString16(2, middle_names[i]);
    s.BindString16(3, last_names[i]);
    s.BindString16(4, full_names[i]);

    if (!s.Run())
      return false;
  }
  return true;
}

bool AddAutofillProfileEmails(const AutofillProfile& profile,
                              sql::Connection* db) {
  std::vector<base::string16> emails;
  profile.GetRawMultiInfo(EMAIL_ADDRESS, &emails);

  for (size_t i = 0; i < emails.size(); ++i) {
    // Add the new email.
    sql::Statement s(db->GetUniqueStatement(
      "INSERT INTO autofill_profile_emails"
      " (guid, email) "
      "VALUES (?,?)"));
    s.BindString(0, profile.guid());
    s.BindString16(1, emails[i]);

    if (!s.Run())
      return false;
  }

  return true;
}

bool AddAutofillProfilePhones(const AutofillProfile& profile,
                              sql::Connection* db) {
  std::vector<base::string16> numbers;
  profile.GetRawMultiInfo(PHONE_HOME_WHOLE_NUMBER, &numbers);

  for (size_t i = 0; i < numbers.size(); ++i) {
    // Add the new number.
    sql::Statement s(db->GetUniqueStatement(
      "INSERT INTO autofill_profile_phones"
      " (guid, number) "
      "VALUES (?,?)"));
    s.BindString(0, profile.guid());
    s.BindString16(1, numbers[i]);

    if (!s.Run())
      return false;
  }

  return true;
}

bool AddAutofillProfilePieces(const AutofillProfile& profile,
                              sql::Connection* db) {
  if (!AddAutofillProfileNames(profile, db))
    return false;

  if (!AddAutofillProfileEmails(profile, db))
    return false;

  if (!AddAutofillProfilePhones(profile, db))
    return false;

  return true;
}

bool RemoveAutofillProfilePieces(const std::string& guid, sql::Connection* db) {
  sql::Statement s1(db->GetUniqueStatement(
      "DELETE FROM autofill_profile_names WHERE guid = ?"));
  s1.BindString(0, guid);

  if (!s1.Run())
    return false;

  sql::Statement s2(db->GetUniqueStatement(
      "DELETE FROM autofill_profile_emails WHERE guid = ?"));
  s2.BindString(0, guid);

  if (!s2.Run())
    return false;

  sql::Statement s3(db->GetUniqueStatement(
      "DELETE FROM autofill_profile_phones WHERE guid = ?"));
  s3.BindString(0, guid);

  return s3.Run();
}

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);
}

time_t GetEndTime(const base::Time& end) {
  if (end.is_null() || end == base::Time::Max())
    return std::numeric_limits<time_t>::max();

  return end.ToTimeT();
}

std::string ServerStatusEnumToString(CreditCard::ServerStatus status) {
  switch (status) {
    case CreditCard::EXPIRED:
      return "EXPIRED";

    case CreditCard::OK:
      return "OK";
  }

  NOTREACHED();
  return "OK";
}

CreditCard::ServerStatus ServerStatusStringToEnum(const std::string& status) {
  if (status == "EXPIRED")
    return CreditCard::EXPIRED;

  DCHECK_EQ("OK", status);
  return CreditCard::OK;
}

}  // namespace

// The maximum length allowed for form data.
const size_t AutofillTable::kMaxDataLength = 1024;

AutofillTable::AutofillTable(const std::string& app_locale)
    : app_locale_(app_locale) {
}

AutofillTable::~AutofillTable() {
}

AutofillTable* AutofillTable::FromWebDatabase(WebDatabase* db) {
  return static_cast<AutofillTable*>(db->GetTable(GetKey()));
}

WebDatabaseTable::TypeKey AutofillTable::GetTypeKey() const {
  return GetKey();
}

bool AutofillTable::CreateTablesIfNecessary() {
  return (InitMainTable() && InitCreditCardsTable() && InitProfilesTable() &&
          InitProfileNamesTable() && InitProfileEmailsTable() &&
          InitProfilePhonesTable() && InitProfileTrashTable() &&
          InitMaskedCreditCardsTable() && InitUnmaskedCreditCardsTable() &&
          InitServerCardMetadataTable() && InitServerAddressesTable() &&
          InitServerAddressMetadataTable());
}

bool AutofillTable::IsSyncable() {
  return true;
}

bool AutofillTable::MigrateToVersion(int version,
                                     bool* update_compatible_version) {
  // Migrate if necessary.
  switch (version) {
    case 54:
      *update_compatible_version = true;
      return MigrateToVersion54AddI18nFieldsAndRemoveDeprecatedFields();
    case 55:
      *update_compatible_version = true;
      return MigrateToVersion55MergeAutofillDatesTable();
    case 56:
      *update_compatible_version = true;
      return MigrateToVersion56AddProfileLanguageCodeForFormatting();
    case 57:
      *update_compatible_version = true;
      return MigrateToVersion57AddFullNameField();
    case 60:
      *update_compatible_version = false;
      return MigrateToVersion60AddServerCards();
    case 61:
      *update_compatible_version = false;
      return MigrateToVersion61AddUsageStats();
    case 62:
      *update_compatible_version = false;
      return MigrateToVersion62AddUsageStatsForUnmaskedCards();
    case 63:
      *update_compatible_version = false;
      return MigrateToVersion63AddServerRecipientName();
    case 64:
      *update_compatible_version = false;
      return MigrateToVersion64AddUnmaskDate();
    case 65:
      *update_compatible_version = false;
      return MigrateToVersion65AddServerMetadataTables();
  }
  return true;
}

bool AutofillTable::AddFormFieldValues(
    const std::vector<FormFieldData>& elements,
    std::vector<AutofillChange>* changes) {
  return AddFormFieldValuesTime(elements, changes, Time::Now());
}

bool AutofillTable::AddFormFieldValue(const FormFieldData& element,
                                      std::vector<AutofillChange>* changes) {
  return AddFormFieldValueTime(element, changes, Time::Now());
}

bool AutofillTable::GetFormValuesForElementName(
    const base::string16& name,
    const base::string16& prefix,
    std::vector<base::string16>* values,
    int limit) {
  DCHECK(values);
  sql::Statement s;

  if (prefix.empty()) {
    s.Assign(db_->GetUniqueStatement(
        "SELECT value FROM autofill "
        "WHERE name = ? "
        "ORDER BY count DESC "
        "LIMIT ?"));
    s.BindString16(0, name);
    s.BindInt(1, limit);
  } else {
    base::string16 prefix_lower = base::i18n::ToLower(prefix);
    base::string16 next_prefix = prefix_lower;
    next_prefix[next_prefix.length() - 1]++;

    s.Assign(db_->GetUniqueStatement(
        "SELECT value FROM autofill "
        "WHERE name = ? AND "
        "value_lower >= ? AND "
        "value_lower < ? "
        "ORDER BY count DESC "
        "LIMIT ?"));
    s.BindString16(0, name);
    s.BindString16(1, prefix_lower);
    s.BindString16(2, next_prefix);
    s.BindInt(3, limit);
  }

  values->clear();
  while (s.Step())
    values->push_back(s.ColumnString16(0));
  return s.Succeeded();
}

bool AutofillTable::HasFormElements() {
  sql::Statement s(db_->GetUniqueStatement("SELECT COUNT(*) FROM autofill"));
  if (!s.Step()) {
    NOTREACHED();
    return false;
  }
  return s.ColumnInt(0) > 0;
}

bool AutofillTable::RemoveFormElementsAddedBetween(
    const Time& delete_begin,
    const Time& delete_end,
    std::vector<AutofillChange>* changes) {
  const time_t delete_begin_time_t = delete_begin.ToTimeT();
  const time_t delete_end_time_t = GetEndTime(delete_end);

  // Query for the name, value, count, and access dates of all form elements
  // that were used between the given times.
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT name, value, count, date_created, date_last_used FROM autofill "
      "WHERE (date_created >= ? AND date_created < ?) OR "
      "      (date_last_used >= ? AND date_last_used < ?)"));
  s.BindInt64(0, delete_begin_time_t);
  s.BindInt64(1, delete_end_time_t);
  s.BindInt64(2, delete_begin_time_t);
  s.BindInt64(3, delete_end_time_t);

  std::vector<AutofillUpdate> updates;
  std::vector<AutofillChange> tentative_changes;
  while (s.Step()) {
    base::string16 name = s.ColumnString16(0);
    base::string16 value = s.ColumnString16(1);
    int count = s.ColumnInt(2);
    time_t date_created_time_t = s.ColumnInt64(3);
    time_t date_last_used_time_t = s.ColumnInt64(4);

    // If *all* uses of the element were between |delete_begin| and
    // |delete_end|, then delete the element.  Otherwise, update the use
    // timestamps and use count.
    AutofillChange::Type change_type;
    if (date_created_time_t >= delete_begin_time_t &&
        date_last_used_time_t < delete_end_time_t) {
      change_type = AutofillChange::REMOVE;
    } else {
      change_type = AutofillChange::UPDATE;

      // For all updated elements, set either date_created or date_last_used so
      // that the range [date_created, date_last_used] no longer overlaps with
      // [delete_begin, delete_end). Update the count by interpolating.
      // Precisely, compute the average amount of time between increments to the
      // count in the original range [date_created, date_last_used]:
      //   avg_delta = (date_last_used_orig - date_created_orig) / (count - 1)
      // The count can be expressed as
      //   count = 1 + (date_last_used - date_created) / avg_delta
      // Hence, update the count to
      //   count_new = 1 + (date_last_used_new - date_created_new) / avg_delta
      //             = 1 + ((count - 1) *
      //                    (date_last_used_new - date_created_new) /
      //                    (date_last_used_orig - date_created_orig))
      // Interpolating might not give a result that completely accurately
      // reflects the user's history, but it's the best that can be done given
      // the information in the database.
      AutofillUpdate updated_entry;
      updated_entry.name = name;
      updated_entry.value = value;
      updated_entry.date_created =
          date_created_time_t < delete_begin_time_t ?
          date_created_time_t :
          delete_end_time_t;
      updated_entry.date_last_used =
          date_last_used_time_t >= delete_end_time_t ?
          date_last_used_time_t :
          delete_begin_time_t - 1;
      updated_entry.count =
          1 +
          Round(1.0 * (count - 1) *
                (updated_entry.date_last_used - updated_entry.date_created) /
                (date_last_used_time_t - date_created_time_t));
      updates.push_back(updated_entry);
    }

    tentative_changes.push_back(
        AutofillChange(change_type, AutofillKey(name, value)));
  }
  if (!s.Succeeded())
    return false;

  // As a single transaction, remove or update the elements appropriately.
  sql::Statement s_delete(db_->GetUniqueStatement(
      "DELETE FROM autofill WHERE date_created >= ? AND date_last_used < ?"));
  s_delete.BindInt64(0, delete_begin_time_t);
  s_delete.BindInt64(1, delete_end_time_t);
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;
  if (!s_delete.Run())
    return false;
  for (size_t i = 0; i < updates.size(); ++i) {
    sql::Statement s_update(db_->GetUniqueStatement(
      "UPDATE autofill SET date_created = ?, date_last_used = ?, count = ?"
      "WHERE name = ? AND value = ?"));
    s_update.BindInt64(0, updates[i].date_created);
    s_update.BindInt64(1, updates[i].date_last_used);
    s_update.BindInt(2, updates[i].count);
    s_update.BindString16(3, updates[i].name);
    s_update.BindString16(4, updates[i].value);
    if (!s_update.Run())
      return false;
  }
  if (!transaction.Commit())
    return false;

  *changes = tentative_changes;
  return true;
}

bool AutofillTable::RemoveExpiredFormElements(
    std::vector<AutofillChange>* changes) {
  base::Time expiration_time =
      base::Time::Now() - base::TimeDelta::FromDays(kExpirationPeriodInDays);

  // Query for the name and value of all form elements that were last used
  // before the |expiration_time|.
  sql::Statement select_for_delete(db_->GetUniqueStatement(
      "SELECT name, value FROM autofill WHERE date_last_used < ?"));
  select_for_delete.BindInt64(0, expiration_time.ToTimeT());
  std::vector<AutofillChange> tentative_changes;
  while (select_for_delete.Step()) {
    base::string16 name = select_for_delete.ColumnString16(0);
    base::string16 value = select_for_delete.ColumnString16(1);
    tentative_changes.push_back(
        AutofillChange(AutofillChange::REMOVE, AutofillKey(name, value)));
  }

  if (!select_for_delete.Succeeded())
    return false;

  sql::Statement delete_data_statement(db_->GetUniqueStatement(
      "DELETE FROM autofill WHERE date_last_used < ?"));
  delete_data_statement.BindInt64(0, expiration_time.ToTimeT());
  if (!delete_data_statement.Run())
    return false;

  *changes = tentative_changes;
  return true;
}

bool AutofillTable::AddFormFieldValuesTime(
    const std::vector<FormFieldData>& elements,
    std::vector<AutofillChange>* changes,
    Time time) {
  // Only add one new entry for each unique element name.  Use |seen_names| to
  // track this.  Add up to |kMaximumUniqueNames| unique entries per form.
  const size_t kMaximumUniqueNames = 256;
  std::set<base::string16> seen_names;
  bool result = true;
  for (std::vector<FormFieldData>::const_iterator itr = elements.begin();
       itr != elements.end(); ++itr) {
    if (seen_names.size() >= kMaximumUniqueNames)
      break;
    if (seen_names.find(itr->name) != seen_names.end())
      continue;
    result = result && AddFormFieldValueTime(*itr, changes, time);
    seen_names.insert(itr->name);
  }
  return result;
}

bool AutofillTable::GetAllAutofillEntries(std::vector<AutofillEntry>* entries) {
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT name, value, date_created, date_last_used FROM autofill"));

  while (s.Step()) {
    base::string16 name = s.ColumnString16(0);
    base::string16 value = s.ColumnString16(1);
    Time date_created = Time::FromTimeT(s.ColumnInt64(2));
    Time date_last_used = Time::FromTimeT(s.ColumnInt64(3));
    entries->push_back(
        AutofillEntry(AutofillKey(name, value), date_created, date_last_used));
  }

  return s.Succeeded();
}

bool AutofillTable::GetAutofillTimestamps(const base::string16& name,
                                          const base::string16& value,
                                          Time* date_created,
                                          Time* date_last_used) {
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT date_created, date_last_used FROM autofill "
      "WHERE name = ? AND value = ?"));
  s.BindString16(0, name);
  s.BindString16(1, value);
  if (!s.Step())
    return false;

  *date_created = Time::FromTimeT(s.ColumnInt64(0));
  *date_last_used = Time::FromTimeT(s.ColumnInt64(1));

  DCHECK(!s.Step());
  return true;
}

bool AutofillTable::UpdateAutofillEntries(
    const std::vector<AutofillEntry>& entries) {
  if (entries.empty())
    return true;

  // Remove all existing entries.
  for (size_t i = 0; i < entries.size(); ++i) {
    sql::Statement s(db_->GetUniqueStatement(
        "DELETE FROM autofill WHERE name = ? AND value = ?"));
    s.BindString16(0, entries[i].key().name());
    s.BindString16(1, entries[i].key().value());
    if (!s.Run())
      return false;
  }

  // Insert all the supplied autofill entries.
  for (size_t i = 0; i < entries.size(); ++i) {
    if (!InsertAutofillEntry(entries[i]))
      return false;
  }

  return true;
}

bool AutofillTable::InsertAutofillEntry(const AutofillEntry& entry) {
  std::string sql =
      "INSERT INTO autofill "
      "(name, value, value_lower, date_created, date_last_used, count) "
      "VALUES (?, ?, ?, ?, ?, ?)";
  sql::Statement s(db_->GetUniqueStatement(sql.c_str()));
  s.BindString16(0, entry.key().name());
  s.BindString16(1, entry.key().value());
  s.BindString16(2, base::i18n::ToLower(entry.key().value()));
  s.BindInt64(3, entry.date_created().ToTimeT());
  s.BindInt64(4, entry.date_last_used().ToTimeT());
  // TODO(isherman): The counts column is currently synced implicitly as the
  // number of timestamps.  Sync the value explicitly instead, since the DB now
  // only saves the first and last timestamp, which makes counting timestamps
  // completely meaningless as a way to track frequency of usage.
  s.BindInt(5, entry.date_last_used() == entry.date_created() ? 1 : 2);
  return s.Run();
}

bool AutofillTable::AddFormFieldValueTime(const FormFieldData& element,
                                          std::vector<AutofillChange>* changes,
                                          Time time) {
  sql::Statement s_exists(db_->GetUniqueStatement(
      "SELECT COUNT(*) FROM autofill WHERE name = ? AND value = ?"));
  s_exists.BindString16(0, element.name);
  s_exists.BindString16(1, element.value);
  if (!s_exists.Step())
    return false;

  bool already_exists = s_exists.ColumnInt(0) > 0;
  if (already_exists) {
    sql::Statement s(db_->GetUniqueStatement(
        "UPDATE autofill SET date_last_used = ?, count = count + 1 "
        "WHERE name = ? AND value = ?"));
    s.BindInt64(0, time.ToTimeT());
    s.BindString16(1, element.name);
    s.BindString16(2, element.value);
    if (!s.Run())
      return false;
  } else {
    time_t time_as_time_t = time.ToTimeT();
    sql::Statement s(db_->GetUniqueStatement(
        "INSERT INTO autofill "
        "(name, value, value_lower, date_created, date_last_used, count) "
        "VALUES (?, ?, ?, ?, ?, ?)"));
    s.BindString16(0, element.name);
    s.BindString16(1, element.value);
    s.BindString16(2, base::i18n::ToLower(element.value));
    s.BindInt64(3, time_as_time_t);
    s.BindInt64(4, time_as_time_t);
    s.BindInt(5, 1);
    if (!s.Run())
      return false;
  }

  AutofillChange::Type change_type =
      already_exists ? AutofillChange::UPDATE : AutofillChange::ADD;
  changes->push_back(
      AutofillChange(change_type, AutofillKey(element.name, element.value)));
  return true;
}


bool AutofillTable::RemoveFormElement(const base::string16& name,
                                      const base::string16& value) {
  sql::Statement s(db_->GetUniqueStatement(
      "DELETE FROM autofill WHERE name = ? AND value= ?"));
  s.BindString16(0, name);
  s.BindString16(1, value);
  return s.Run();
}

bool AutofillTable::AddAutofillProfile(const AutofillProfile& profile) {
  if (IsAutofillGUIDInTrash(profile.guid()))
    return true;

  sql::Statement s(db_->GetUniqueStatement(
      "INSERT INTO autofill_profiles"
      "(guid, company_name, street_address, dependent_locality, city, state,"
      " zipcode, sorting_code, country_code, use_count, use_date, "
      " date_modified, origin, language_code)"
      "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?,?)"));
  BindAutofillProfileToStatement(profile, base::Time::Now(), &s);

  if (!s.Run())
    return false;

  return AddAutofillProfilePieces(profile, db_);
}

bool AutofillTable::GetAutofillProfile(const std::string& guid,
                                       AutofillProfile** profile) {
  DCHECK(base::IsValidGUID(guid));
  DCHECK(profile);
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT guid, company_name, street_address, dependent_locality, city,"
      " state, zipcode, sorting_code, country_code, use_count, use_date,"
      " date_modified, origin, language_code "
      "FROM autofill_profiles "
      "WHERE guid=?"));
  s.BindString(0, guid);

  if (!s.Step())
    return false;

  scoped_ptr<AutofillProfile> p = AutofillProfileFromStatement(s);

  // Get associated name info.
  AddAutofillProfileNamesToProfile(db_, p.get());

  // Get associated email info.
  AddAutofillProfileEmailsToProfile(db_, p.get());

  // Get associated phone info.
  AddAutofillProfilePhonesToProfile(db_, p.get());

  *profile = p.release();
  return true;
}

bool AutofillTable::GetAutofillProfiles(
    std::vector<AutofillProfile*>* profiles) {
  DCHECK(profiles);
  profiles->clear();

  sql::Statement s(db_->GetUniqueStatement(
      "SELECT guid "
      "FROM autofill_profiles "
      "ORDER BY date_modified DESC, guid"));

  while (s.Step()) {
    std::string guid = s.ColumnString(0);
    AutofillProfile* profile = NULL;
    if (!GetAutofillProfile(guid, &profile))
      return false;
    profiles->push_back(profile);
  }

  return s.Succeeded();
}

bool AutofillTable::GetServerProfiles(std::vector<AutofillProfile*>* profiles) {
  profiles->clear();

  sql::Statement s(db_->GetUniqueStatement(
      "SELECT "
        "id,"
        "use_count,"
        "use_date,"
        "recipient_name,"
        "company_name,"
        "street_address,"
        "address_1,"  // ADDRESS_HOME_STATE
        "address_2,"  // ADDRESS_HOME_CITY
        "address_3,"  // ADDRESS_HOME_DEPENDENT_LOCALITY
        "address_4,"  // Not supported in AutofillProfile yet.
        "postal_code,"  // ADDRESS_HOME_ZIP
        "sorting_code,"  // ADDRESS_HOME_SORTING_CODE
        "country_code,"  // ADDRESS_HOME_COUNTRY
        "phone_number,"  // PHONE_HOME_WHOLE_NUMBER
        "language_code "
      "FROM server_addresses addresses "
      "LEFT OUTER JOIN server_address_metadata USING (id)"));

  while (s.Step()) {
    int index = 0;
    scoped_ptr<AutofillProfile> profile(new AutofillProfile(
        AutofillProfile::SERVER_PROFILE, s.ColumnString(index++)));
    profile->set_use_count(s.ColumnInt64(index++));
    profile->set_use_date(
        base::Time::FromInternalValue(s.ColumnInt64(index++)));

    base::string16 recipient_name = s.ColumnString16(index++);
    profile->SetRawInfo(COMPANY_NAME, s.ColumnString16(index++));
    profile->SetRawInfo(ADDRESS_HOME_STREET_ADDRESS, s.ColumnString16(index++));
    profile->SetRawInfo(ADDRESS_HOME_STATE, s.ColumnString16(index++));
    profile->SetRawInfo(ADDRESS_HOME_CITY, s.ColumnString16(index++));
    profile->SetRawInfo(ADDRESS_HOME_DEPENDENT_LOCALITY,
                        s.ColumnString16(index++));
    index++;  // Skip address_4 which we haven't added to AutofillProfile yet.
    profile->SetRawInfo(ADDRESS_HOME_ZIP, s.ColumnString16(index++));
    profile->SetRawInfo(ADDRESS_HOME_SORTING_CODE, s.ColumnString16(index++));
    profile->SetRawInfo(ADDRESS_HOME_COUNTRY, s.ColumnString16(index++));
    base::string16 phone_number = s.ColumnString16(index++);
    profile->set_language_code(s.ColumnString(index++));

    // SetInfo instead of SetRawInfo so the constituent pieces will be parsed
    // for these data types.
    profile->SetInfo(AutofillType(NAME_FULL), recipient_name,
                     profile->language_code());
    profile->SetInfo(AutofillType(PHONE_HOME_WHOLE_NUMBER), phone_number,
                     profile->language_code());

    profiles->push_back(profile.release());
  }

  return s.Succeeded();
}

void AutofillTable::SetServerProfiles(
    const std::vector<AutofillProfile>& profiles) {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return;

  // Delete all old ones first.
  sql::Statement delete_old(db_->GetUniqueStatement(
      "DELETE FROM server_addresses"));
  delete_old.Run();

  sql::Statement insert(db_->GetUniqueStatement(
      "INSERT INTO server_addresses("
        "id,"
        "recipient_name,"
        "company_name,"
        "street_address,"
        "address_1,"  // ADDRESS_HOME_STATE
        "address_2,"  // ADDRESS_HOME_CITY
        "address_3,"  // ADDRESS_HOME_DEPENDENT_LOCALITY
        "address_4,"  // Not supported in AutofillProfile yet.
        "postal_code,"  // ADDRESS_HOME_ZIP
        "sorting_code,"  // ADDRESS_HOME_SORTING_CODE
        "country_code,"  // ADDRESS_HOME_COUNTRY
        "phone_number,"  // PHONE_HOME_WHOLE_NUMBER
        "language_code) "
      "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)"));
  for (const auto& profile : profiles) {
    DCHECK(profile.record_type() == AutofillProfile::SERVER_PROFILE);

    int index = 0;
    insert.BindString(index++, profile.server_id());
    insert.BindString16(index++, profile.GetRawInfo(NAME_FULL));
    insert.BindString16(index++, profile.GetRawInfo(COMPANY_NAME));
    insert.BindString16(index++,
                        profile.GetRawInfo(ADDRESS_HOME_STREET_ADDRESS));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_STATE));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_CITY));
    insert.BindString16(index++,
                        profile.GetRawInfo(ADDRESS_HOME_DEPENDENT_LOCALITY));
    index++;  // SKip address_4 which we haven't added to AutofillProfile yet.
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_ZIP));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_SORTING_CODE));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_COUNTRY));
    insert.BindString16(index++, profile.GetRawInfo(PHONE_HOME_WHOLE_NUMBER));
    insert.BindString(index++, profile.language_code());

    insert.Run();
    insert.Reset(true);
  }

  // Delete metadata that's no longer relevant.
  sql::Statement metadata_delete(db_->GetUniqueStatement(
      "DELETE FROM server_address_metadata WHERE id NOT IN "
          "(SELECT id FROM server_addresses)"));
  metadata_delete.Run();

  transaction.Commit();
}

bool AutofillTable::UpdateAutofillProfile(const AutofillProfile& profile) {
  DCHECK(base::IsValidGUID(profile.guid()));

  // Don't update anything until the trash has been emptied.  There may be
  // pending modifications to process.
  if (!IsAutofillProfilesTrashEmpty())
    return true;

  AutofillProfile* tmp_profile = NULL;
  if (!GetAutofillProfile(profile.guid(), &tmp_profile))
    return false;

  scoped_ptr<AutofillProfile> old_profile(tmp_profile);
  bool update_modification_date = *old_profile != profile;

  sql::Statement s(db_->GetUniqueStatement(
      "UPDATE autofill_profiles "
      "SET guid=?, company_name=?, street_address=?, dependent_locality=?, "
      "    city=?, state=?, zipcode=?, sorting_code=?, country_code=?, "
      "    use_count=?, use_date=?, date_modified=?, origin=?, language_code=? "
      "WHERE guid=?"));
  BindAutofillProfileToStatement(
      profile,
      update_modification_date ? base::Time::Now() :
                                 old_profile->modification_date(),
      &s);
  s.BindString(14, profile.guid());

  bool result = s.Run();
  DCHECK_GT(db_->GetLastChangeCount(), 0);
  if (!result)
    return result;

  // Remove the old names, emails, and phone numbers.
  if (!RemoveAutofillProfilePieces(profile.guid(), db_))
    return false;

  return AddAutofillProfilePieces(profile, db_);
}

bool AutofillTable::RemoveAutofillProfile(const std::string& guid) {
  DCHECK(base::IsValidGUID(guid));

  if (IsAutofillGUIDInTrash(guid)) {
    sql::Statement s_trash(db_->GetUniqueStatement(
        "DELETE FROM autofill_profiles_trash WHERE guid = ?"));
    s_trash.BindString(0, guid);

    bool success = s_trash.Run();
    DCHECK_GT(db_->GetLastChangeCount(), 0) << "Expected item in trash";
    return success;
  }

  sql::Statement s(db_->GetUniqueStatement(
      "DELETE FROM autofill_profiles WHERE guid = ?"));
  s.BindString(0, guid);

  if (!s.Run())
    return false;

  return RemoveAutofillProfilePieces(guid, db_);
}

bool AutofillTable::ClearAutofillProfiles() {
  sql::Statement s1(db_->GetUniqueStatement(
      "DELETE FROM autofill_profiles"));

  if (!s1.Run())
    return false;

  sql::Statement s2(db_->GetUniqueStatement(
      "DELETE FROM autofill_profile_names"));

  if (!s2.Run())
    return false;

  sql::Statement s3(db_->GetUniqueStatement(
      "DELETE FROM autofill_profile_emails"));

  if (!s3.Run())
    return false;

  sql::Statement s4(db_->GetUniqueStatement(
      "DELETE FROM autofill_profile_phones"));

  return s4.Run();
}

bool AutofillTable::AddCreditCard(const CreditCard& credit_card) {
  sql::Statement s(db_->GetUniqueStatement(
      "INSERT INTO credit_cards"
      "(guid, name_on_card, expiration_month, expiration_year, "
      " card_number_encrypted, use_count, use_date, date_modified, origin)"
      "VALUES (?,?,?,?,?,?,?,?,?)"));
  BindCreditCardToStatement(credit_card, base::Time::Now(), &s);

  if (!s.Run())
    return false;

  DCHECK_GT(db_->GetLastChangeCount(), 0);
  return true;
}

bool AutofillTable::GetCreditCard(const std::string& guid,
                                  CreditCard** credit_card) {
  DCHECK(base::IsValidGUID(guid));
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT guid, name_on_card, expiration_month, expiration_year, "
             "card_number_encrypted, use_count, use_date, date_modified, "
             "origin "
      "FROM credit_cards "
      "WHERE guid = ?"));
  s.BindString(0, guid);

  if (!s.Step())
    return false;

  *credit_card = CreditCardFromStatement(s).release();
  return true;
}

bool AutofillTable::GetCreditCards(
    std::vector<CreditCard*>* credit_cards) {
  DCHECK(credit_cards);
  credit_cards->clear();

  sql::Statement s(db_->GetUniqueStatement(
      "SELECT guid "
      "FROM credit_cards "
      "ORDER BY date_modified DESC, guid"));

  while (s.Step()) {
    std::string guid = s.ColumnString(0);
    CreditCard* credit_card = NULL;
    if (!GetCreditCard(guid, &credit_card))
      return false;
    credit_cards->push_back(credit_card);
  }

  return s.Succeeded();
}

bool AutofillTable::GetServerCreditCards(
    std::vector<CreditCard*>* credit_cards) {
  credit_cards->clear();

  sql::Statement s(db_->GetUniqueStatement(
      "SELECT "
      "card_number_encrypted, "  // 0
      "last_four,"     // 1
      "masked.id,"     // 2
      "metadata.use_count,"     // 3
      "metadata.use_date,"      // 4
      "type,"          // 5
      "status,"        // 6
      "name_on_card,"  // 7
      "exp_month,"     // 8
      "exp_year "      // 9
      "FROM masked_credit_cards masked "
      "LEFT OUTER JOIN unmasked_credit_cards USING (id) "
      "LEFT OUTER JOIN server_card_metadata metadata USING (id)"));
  while (s.Step()) {
    int index = 0;

    // If the card_number_encrypted field is nonempty, we can assume this card
    // is a full card, otherwise it's masked.
    base::string16 full_card_number = UnencryptedCardFromColumn(s, index++);
    base::string16 last_four = s.ColumnString16(index++);
    CreditCard::RecordType record_type = full_card_number.empty() ?
        CreditCard::MASKED_SERVER_CARD :
        CreditCard::FULL_SERVER_CARD;
    std::string server_id = s.ColumnString(index++);

    CreditCard* card = new CreditCard(record_type, server_id);
    card->SetRawInfo(
        CREDIT_CARD_NUMBER,
        record_type == CreditCard::MASKED_SERVER_CARD ? last_four
                                                      : full_card_number);
    card->set_use_count(s.ColumnInt64(index++));
    card->set_use_date(base::Time::FromInternalValue(s.ColumnInt64(index++)));

    std::string card_type = s.ColumnString(index++);
    if (record_type == CreditCard::MASKED_SERVER_CARD) {
      // The type must be set after setting the number to override the
      // autodectected type.
      card->SetTypeForMaskedCard(card_type.c_str());
    } else {
      DCHECK_EQ(CreditCard::GetCreditCardType(full_card_number), card_type);
    }

    card->SetServerStatus(ServerStatusStringToEnum(s.ColumnString(index++)));
    card->SetRawInfo(CREDIT_CARD_NAME, s.ColumnString16(index++));
    card->SetRawInfo(CREDIT_CARD_EXP_MONTH, s.ColumnString16(index++));
    card->SetRawInfo(CREDIT_CARD_EXP_4_DIGIT_YEAR, s.ColumnString16(index++));
    credit_cards->push_back(card);
  }

  return s.Succeeded();
}

void AutofillTable::SetServerCreditCards(
    const std::vector<CreditCard>& credit_cards) {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return;

  // Delete all old values.
  sql::Statement masked_delete(db_->GetUniqueStatement(
      "DELETE FROM masked_credit_cards"));
  masked_delete.Run();

  sql::Statement masked_insert(db_->GetUniqueStatement(
      "INSERT INTO masked_credit_cards("
      "id,"            // 0
      "type,"          // 1
      "status,"        // 2
      "name_on_card,"  // 3
      "last_four,"     // 4
      "exp_month,"     // 4
      "exp_year) "     // 5
      "VALUES (?,?,?,?,?,?,?)"));
  for (const CreditCard& card : credit_cards) {
    DCHECK_EQ(CreditCard::MASKED_SERVER_CARD, card.record_type());

    masked_insert.BindString(0, card.server_id());
    masked_insert.BindString(1, card.type());
    masked_insert.BindString(2,
                             ServerStatusEnumToString(card.GetServerStatus()));
    masked_insert.BindString16(3, card.GetRawInfo(CREDIT_CARD_NAME));
    masked_insert.BindString16(4, card.LastFourDigits());
    masked_insert.BindString16(5, card.GetRawInfo(CREDIT_CARD_EXP_MONTH));
    masked_insert.BindString16(6,
                               card.GetRawInfo(CREDIT_CARD_EXP_4_DIGIT_YEAR));

    masked_insert.Run();
    masked_insert.Reset(true);
  }

  // Delete all items in the unmasked table that aren't in the new set.
  sql::Statement unmasked_delete(db_->GetUniqueStatement(
      "DELETE FROM unmasked_credit_cards WHERE id NOT IN "
          "(SELECT id FROM masked_credit_cards)"));
  unmasked_delete.Run();
  // Do the same for metadata.
  sql::Statement metadata_delete(db_->GetUniqueStatement(
      "DELETE FROM server_card_metadata WHERE id NOT IN "
          "(SELECT id FROM masked_credit_cards)"));
  metadata_delete.Run();

  transaction.Commit();
}

bool AutofillTable::UnmaskServerCreditCard(const CreditCard& masked,
                                           const base::string16& full_number) {
  // Make sure there aren't duplicates for this card.
  MaskServerCreditCard(masked.server_id());
  sql::Statement s(db_->GetUniqueStatement(
      "INSERT INTO unmasked_credit_cards("
          "id,"
          "card_number_encrypted,"
          "unmask_date)"
      "VALUES (?,?,?)"));
  s.BindString(0, masked.server_id());

  std::string encrypted_data;
  OSCrypt::EncryptString16(full_number, &encrypted_data);
  s.BindBlob(1, encrypted_data.data(),
             static_cast<int>(encrypted_data.length()));
  s.BindInt64(2, base::Time::Now().ToInternalValue());  // unmask_date

  s.Run();

  CreditCard unmasked = masked;
  unmasked.set_record_type(CreditCard::FULL_SERVER_CARD);
  unmasked.SetNumber(full_number);
  unmasked.RecordUse();
  UpdateServerCardUsageStats(unmasked);

  return db_->GetLastChangeCount() > 0;
}

bool AutofillTable::MaskServerCreditCard(const std::string& id) {
  sql::Statement s(db_->GetUniqueStatement(
      "DELETE FROM unmasked_credit_cards WHERE id = ?"));
  s.BindString(0, id);
  s.Run();
  return db_->GetLastChangeCount() > 0;
}

bool AutofillTable::UpdateServerCardUsageStats(
    const CreditCard& credit_card) {
  DCHECK_NE(CreditCard::LOCAL_CARD, credit_card.record_type());
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  sql::Statement remove(db_->GetUniqueStatement(
      "DELETE FROM server_card_metadata WHERE id = ?"));
  remove.BindString(0, credit_card.server_id());
  remove.Run();

  sql::Statement s(db_->GetUniqueStatement(
      "INSERT INTO server_card_metadata(use_count, use_date, id)"
      "VALUES (?,?,?)"));
  s.BindInt64(0, credit_card.use_count());
  s.BindInt64(1, credit_card.use_date().ToInternalValue());
  s.BindString(2, credit_card.server_id());
  s.Run();

  transaction.Commit();

  return db_->GetLastChangeCount() > 0;
}

bool AutofillTable::UpdateServerAddressUsageStats(
    const AutofillProfile& profile) {
  DCHECK_EQ(AutofillProfile::SERVER_PROFILE, profile.record_type());

  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  sql::Statement remove(db_->GetUniqueStatement(
      "DELETE FROM server_address_metadata WHERE id = ?"));
  remove.BindString(0, profile.server_id());
  remove.Run();

  sql::Statement s(db_->GetUniqueStatement(
      "INSERT INTO server_address_metadata(use_count, use_date, id)"
      "VALUES (?,?,?)"));
  s.BindInt64(0, profile.use_count());
  s.BindInt64(1, profile.use_date().ToInternalValue());
  s.BindString(2, profile.server_id());
  s.Run();

  transaction.Commit();

  return db_->GetLastChangeCount() > 0;
}

bool AutofillTable::ClearAllServerData() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;  // Some error, nothing was changed.

  sql::Statement masked(db_->GetUniqueStatement(
      "DELETE FROM masked_credit_cards"));
  masked.Run();
  bool changed = db_->GetLastChangeCount() > 0;

  sql::Statement unmasked(db_->GetUniqueStatement(
      "DELETE FROM unmasked_credit_cards"));
  unmasked.Run();
  changed |= db_->GetLastChangeCount() > 0;

  sql::Statement addresses(db_->GetUniqueStatement(
      "DELETE FROM server_addresses"));
  addresses.Run();
  changed |= db_->GetLastChangeCount() > 0;

  sql::Statement card_metadata(db_->GetUniqueStatement(
      "DELETE FROM server_card_metadata"));
  card_metadata.Run();
  changed |= db_->GetLastChangeCount() > 0;

  sql::Statement address_metadata(db_->GetUniqueStatement(
      "DELETE FROM server_address_metadata"));
  address_metadata.Run();
  changed |= db_->GetLastChangeCount() > 0;

  transaction.Commit();
  return changed;
}

bool AutofillTable::UpdateCreditCard(const CreditCard& credit_card) {
  DCHECK(base::IsValidGUID(credit_card.guid()));

  CreditCard* tmp_credit_card = NULL;
  if (!GetCreditCard(credit_card.guid(), &tmp_credit_card))
    return false;

  scoped_ptr<CreditCard> old_credit_card(tmp_credit_card);
  bool update_modification_date = *old_credit_card != credit_card;

  sql::Statement s(db_->GetUniqueStatement(
      "UPDATE credit_cards "
      "SET guid=?, name_on_card=?, expiration_month=?,"
          "expiration_year=?, card_number_encrypted=?, use_count=?, use_date=?,"
          "date_modified=?, origin=?"
      "WHERE guid=?"));
  BindCreditCardToStatement(
      credit_card,
      update_modification_date ? base::Time::Now() :
                                 old_credit_card->modification_date(),
      &s);
  s.BindString(9, credit_card.guid());

  bool result = s.Run();
  DCHECK_GT(db_->GetLastChangeCount(), 0);
  return result;
}

bool AutofillTable::RemoveCreditCard(const std::string& guid) {
  DCHECK(base::IsValidGUID(guid));
  sql::Statement s(db_->GetUniqueStatement(
      "DELETE FROM credit_cards WHERE guid = ?"));
  s.BindString(0, guid);

  return s.Run();
}

bool AutofillTable::RemoveAutofillDataModifiedBetween(
    const Time& delete_begin,
    const Time& delete_end,
    std::vector<std::string>* profile_guids,
    std::vector<std::string>* credit_card_guids) {
  DCHECK(delete_end.is_null() || delete_begin < delete_end);

  time_t delete_begin_t = delete_begin.ToTimeT();
  time_t delete_end_t = GetEndTime(delete_end);

  // Remember Autofill profiles in the time range.
  sql::Statement s_profiles_get(db_->GetUniqueStatement(
      "SELECT guid FROM autofill_profiles "
      "WHERE date_modified >= ? AND date_modified < ?"));
  s_profiles_get.BindInt64(0, delete_begin_t);
  s_profiles_get.BindInt64(1, delete_end_t);

  profile_guids->clear();
  while (s_profiles_get.Step()) {
    std::string guid = s_profiles_get.ColumnString(0);
    profile_guids->push_back(guid);
  }
  if (!s_profiles_get.Succeeded())
    return false;

  // Remove Autofill profiles in the time range.
  sql::Statement s_profiles(db_->GetUniqueStatement(
      "DELETE FROM autofill_profiles "
      "WHERE date_modified >= ? AND date_modified < ?"));
  s_profiles.BindInt64(0, delete_begin_t);
  s_profiles.BindInt64(1, delete_end_t);

  if (!s_profiles.Run())
    return false;

  // Remember Autofill credit cards in the time range.
  sql::Statement s_credit_cards_get(db_->GetUniqueStatement(
      "SELECT guid FROM credit_cards "
      "WHERE date_modified >= ? AND date_modified < ?"));
  s_credit_cards_get.BindInt64(0, delete_begin_t);
  s_credit_cards_get.BindInt64(1, delete_end_t);

  credit_card_guids->clear();
  while (s_credit_cards_get.Step()) {
    std::string guid = s_credit_cards_get.ColumnString(0);
    credit_card_guids->push_back(guid);
  }
  if (!s_credit_cards_get.Succeeded())
    return false;

  // Remove Autofill credit cards in the time range.
  sql::Statement s_credit_cards(db_->GetUniqueStatement(
      "DELETE FROM credit_cards "
      "WHERE date_modified >= ? AND date_modified < ?"));
  s_credit_cards.BindInt64(0, delete_begin_t);
  s_credit_cards.BindInt64(1, delete_end_t);
  if (!s_credit_cards.Run())
    return false;

  // Remove unmasked credit cards in the time range.
  sql::Statement s_unmasked_cards(db_->GetUniqueStatement(
      "DELETE FROM unmasked_credit_cards "
      "WHERE unmask_date >= ? AND unmask_date < ?"));
  s_unmasked_cards.BindInt64(0, delete_begin.ToInternalValue());
  s_unmasked_cards.BindInt64(1, delete_end.ToInternalValue());
  return s_unmasked_cards.Run();
}

bool AutofillTable::RemoveOriginURLsModifiedBetween(
    const Time& delete_begin,
    const Time& delete_end,
    ScopedVector<AutofillProfile>* profiles) {
  DCHECK(delete_end.is_null() || delete_begin < delete_end);

  time_t delete_begin_t = delete_begin.ToTimeT();
  time_t delete_end_t = GetEndTime(delete_end);

  // Remember Autofill profiles with URL origins in the time range.
  sql::Statement s_profiles_get(db_->GetUniqueStatement(
      "SELECT guid, origin FROM autofill_profiles "
      "WHERE date_modified >= ? AND date_modified < ?"));
  s_profiles_get.BindInt64(0, delete_begin_t);
  s_profiles_get.BindInt64(1, delete_end_t);

  std::vector<std::string> profile_guids;
  while (s_profiles_get.Step()) {
    std::string guid = s_profiles_get.ColumnString(0);
    std::string origin = s_profiles_get.ColumnString(1);
    if (GURL(origin).is_valid())
      profile_guids.push_back(guid);
  }
  if (!s_profiles_get.Succeeded())
    return false;

  // Clear out the origins for the found Autofill profiles.
  for (std::vector<std::string>::const_iterator it = profile_guids.begin();
       it != profile_guids.end(); ++it) {
    sql::Statement s_profile(db_->GetUniqueStatement(
        "UPDATE autofill_profiles SET origin='' WHERE guid=?"));
    s_profile.BindString(0, *it);
    if (!s_profile.Run())
      return false;

    AutofillProfile* profile;
    if (!GetAutofillProfile(*it, &profile))
      return false;

    profiles->push_back(profile);
  }

  // Remember Autofill credit cards with URL origins in the time range.
  sql::Statement s_credit_cards_get(db_->GetUniqueStatement(
      "SELECT guid, origin FROM credit_cards "
      "WHERE date_modified >= ? AND date_modified < ?"));
  s_credit_cards_get.BindInt64(0, delete_begin_t);
  s_credit_cards_get.BindInt64(1, delete_end_t);

  std::vector<std::string> credit_card_guids;
  while (s_credit_cards_get.Step()) {
    std::string guid = s_credit_cards_get.ColumnString(0);
    std::string origin = s_credit_cards_get.ColumnString(1);
    if (GURL(origin).is_valid())
      credit_card_guids.push_back(guid);
  }
  if (!s_credit_cards_get.Succeeded())
    return false;

  // Clear out the origins for the found credit cards.
  for (std::vector<std::string>::const_iterator it = credit_card_guids.begin();
       it != credit_card_guids.end(); ++it) {
    sql::Statement s_credit_card(db_->GetUniqueStatement(
        "UPDATE credit_cards SET origin='' WHERE guid=?"));
    s_credit_card.BindString(0, *it);
    if (!s_credit_card.Run())
      return false;
  }

  return true;
}

bool AutofillTable::GetAutofillProfilesInTrash(
    std::vector<std::string>* guids) {
  guids->clear();

  sql::Statement s(db_->GetUniqueStatement(
      "SELECT guid "
      "FROM autofill_profiles_trash"));

  while (s.Step()) {
    std::string guid = s.ColumnString(0);
    guids->push_back(guid);
  }

  return s.Succeeded();
}

bool AutofillTable::EmptyAutofillProfilesTrash() {
  sql::Statement s(db_->GetUniqueStatement(
      "DELETE FROM autofill_profiles_trash"));

  return s.Run();
}


bool AutofillTable::AddAutofillGUIDToTrash(const std::string& guid) {
  sql::Statement s(db_->GetUniqueStatement(
    "INSERT INTO autofill_profiles_trash"
    " (guid) "
    "VALUES (?)"));
  s.BindString(0, guid);

  return s.Run();
}

bool AutofillTable::IsAutofillProfilesTrashEmpty() {
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT guid "
      "FROM autofill_profiles_trash"));

  return !s.Step();
}

bool AutofillTable::IsAutofillGUIDInTrash(const std::string& guid) {
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT guid "
      "FROM autofill_profiles_trash "
      "WHERE guid = ?"));
  s.BindString(0, guid);

  return s.Step();
}

bool AutofillTable::InitMainTable() {
  if (!db_->DoesTableExist("autofill")) {
    if (!db_->Execute("CREATE TABLE autofill ("
                      "name VARCHAR, "
                      "value VARCHAR, "
                      "value_lower VARCHAR, "
                      "date_created INTEGER DEFAULT 0, "
                      "date_last_used INTEGER DEFAULT 0, "
                      "count INTEGER DEFAULT 1, "
                      "PRIMARY KEY (name, value))") ||
        !db_->Execute("CREATE INDEX autofill_name ON autofill (name)") ||
        !db_->Execute("CREATE INDEX autofill_name_value_lower ON "
                      "autofill (name, value_lower)")) {
       NOTREACHED();
       return false;
    }
  }
  return true;
}

bool AutofillTable::InitCreditCardsTable() {
  if (!db_->DoesTableExist("credit_cards")) {
    if (!db_->Execute("CREATE TABLE credit_cards ( "
                      "guid VARCHAR PRIMARY KEY, "
                      "name_on_card VARCHAR, "
                      "expiration_month INTEGER, "
                      "expiration_year INTEGER, "
                      "card_number_encrypted BLOB, "
                      "date_modified INTEGER NOT NULL DEFAULT 0, "
                      "origin VARCHAR DEFAULT '', "
                      "use_count INTEGER NOT NULL DEFAULT 0, "
                      "use_date INTEGER NOT NULL DEFAULT 0) ")) {
      NOTREACHED();
      return false;
    }
  }

  return true;
}

bool AutofillTable::InitProfilesTable() {
  if (!db_->DoesTableExist("autofill_profiles")) {
    if (!db_->Execute("CREATE TABLE autofill_profiles ( "
                      "guid VARCHAR PRIMARY KEY, "
                      "company_name VARCHAR, "
                      "street_address VARCHAR, "
                      "dependent_locality VARCHAR, "
                      "city VARCHAR, "
                      "state VARCHAR, "
                      "zipcode VARCHAR, "
                      "sorting_code VARCHAR, "
                      "country_code VARCHAR, "
                      "date_modified INTEGER NOT NULL DEFAULT 0, "
                      "origin VARCHAR DEFAULT '', "
                      "language_code VARCHAR, "
                      "use_count INTEGER NOT NULL DEFAULT 0, "
                      "use_date INTEGER NOT NULL DEFAULT 0) ")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitProfileNamesTable() {
  if (!db_->DoesTableExist("autofill_profile_names")) {
    if (!db_->Execute("CREATE TABLE autofill_profile_names ( "
                      "guid VARCHAR, "
                      "first_name VARCHAR, "
                      "middle_name VARCHAR, "
                      "last_name VARCHAR, "
                      "full_name VARCHAR)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitProfileEmailsTable() {
  if (!db_->DoesTableExist("autofill_profile_emails")) {
    if (!db_->Execute("CREATE TABLE autofill_profile_emails ( "
                      "guid VARCHAR, "
                      "email VARCHAR)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitProfilePhonesTable() {
  if (!db_->DoesTableExist("autofill_profile_phones")) {
    if (!db_->Execute("CREATE TABLE autofill_profile_phones ( "
                      "guid VARCHAR, "
                      "number VARCHAR)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitProfileTrashTable() {
  if (!db_->DoesTableExist("autofill_profiles_trash")) {
    if (!db_->Execute("CREATE TABLE autofill_profiles_trash ( "
                      "guid VARCHAR)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitMaskedCreditCardsTable() {
  if (!db_->DoesTableExist("masked_credit_cards")) {
    if (!db_->Execute("CREATE TABLE masked_credit_cards ("
                      "id VARCHAR,"
                      "status VARCHAR,"
                      "name_on_card VARCHAR,"
                      "type VARCHAR,"
                      "last_four VARCHAR,"
                      "exp_month INTEGER DEFAULT 0,"
                      "exp_year INTEGER DEFAULT 0)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitUnmaskedCreditCardsTable() {
  if (!db_->DoesTableExist("unmasked_credit_cards")) {
    if (!db_->Execute("CREATE TABLE unmasked_credit_cards ("
                      "id VARCHAR,"
                      "card_number_encrypted VARCHAR, "
                      "use_count INTEGER NOT NULL DEFAULT 0, "
                      "use_date INTEGER NOT NULL DEFAULT 0, "
                      "unmask_date INTEGER NOT NULL DEFAULT 0)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitServerCardMetadataTable() {
  if (!db_->DoesTableExist("server_card_metadata")) {
    if (!db_->Execute("CREATE TABLE server_card_metadata ("
                      "id VARCHAR NOT NULL,"
                      "use_count INTEGER NOT NULL DEFAULT 0, "
                      "use_date INTEGER NOT NULL DEFAULT 0)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitServerAddressesTable() {
  if (!db_->DoesTableExist("server_addresses")) {
    // The space after language_code is necessary to match what sqlite does
    // when it appends the column in migration.
    if (!db_->Execute("CREATE TABLE server_addresses ("
                      "id VARCHAR,"
                      "company_name VARCHAR,"
                      "street_address VARCHAR,"
                      "address_1 VARCHAR,"
                      "address_2 VARCHAR,"
                      "address_3 VARCHAR,"
                      "address_4 VARCHAR,"
                      "postal_code VARCHAR,"
                      "sorting_code VARCHAR,"
                      "country_code VARCHAR,"
                      "language_code VARCHAR, "  // Space required.
                      "recipient_name VARCHAR, "  // Ditto.
                      "phone_number VARCHAR)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::InitServerAddressMetadataTable() {
  if (!db_->DoesTableExist("server_address_metadata")) {
    if (!db_->Execute("CREATE TABLE server_address_metadata ("
                      "id VARCHAR NOT NULL,"
                      "use_count INTEGER NOT NULL DEFAULT 0, "
                      "use_date INTEGER NOT NULL DEFAULT 0)")) {
      NOTREACHED();
      return false;
    }
  }
  return true;
}

bool AutofillTable::MigrateToVersion54AddI18nFieldsAndRemoveDeprecatedFields() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  // Test the existence of the |address_line_1| column as an indication that a
  // migration is needed.  It is possible that the new |autofill_profile_phones|
  // schema is in place because the table was newly created when migrating from
  // a pre-version-23 database.
  if (db_->DoesColumnExist("autofill_profiles", "address_line_1")) {
    // Create a temporary copy of the autofill_profiles table in the (newer)
    // version 54 format.  This table
    //   (a) adds columns for street_address, dependent_locality, and
    //       sorting_code,
    //   (b) removes the address_line_1 and address_line_2 columns, which are
    //       replaced by the street_address column, and
    //   (c) removes the country column, which was long deprecated.
    if (db_->DoesTableExist("autofill_profiles_temp") ||
        !db_->Execute("CREATE TABLE autofill_profiles_temp ( "
                      "guid VARCHAR PRIMARY KEY, "
                      "company_name VARCHAR, "
                      "street_address VARCHAR, "
                      "dependent_locality VARCHAR, "
                      "city VARCHAR, "
                      "state VARCHAR, "
                      "zipcode VARCHAR, "
                      "sorting_code VARCHAR, "
                      "country_code VARCHAR, "
                      "date_modified INTEGER NOT NULL DEFAULT 0, "
                      "origin VARCHAR DEFAULT '')")) {
      return false;
    }

    // Copy over the data from the autofill_profiles table, taking care to merge
    // the address lines 1 and 2 into the new street_address column.
    if (!db_->Execute("INSERT INTO autofill_profiles_temp "
                      "SELECT guid, company_name, '', '', city, state, zipcode,"
                      " '', country_code, date_modified, origin "
                      "FROM autofill_profiles")) {
      return false;
    }
    sql::Statement s(db_->GetUniqueStatement(
        "SELECT guid, address_line_1, address_line_2 FROM autofill_profiles"));
    while (s.Step()) {
      std::string guid = s.ColumnString(0);
      base::string16 line1 = s.ColumnString16(1);
      base::string16 line2 = s.ColumnString16(2);
      base::string16 street_address = line1;
      if (!line2.empty())
        street_address += base::ASCIIToUTF16("\n") + line2;

      sql::Statement s_update(db_->GetUniqueStatement(
          "UPDATE autofill_profiles_temp SET street_address=? WHERE guid=?"));
      s_update.BindString16(0, street_address);
      s_update.BindString(1, guid);
      if (!s_update.Run())
        return false;
    }
    if (!s.Succeeded())
      return false;

    // Delete the existing (version 53) table and replace it with the contents
    // of the temporary table.
    if (!db_->Execute("DROP TABLE autofill_profiles") ||
        !db_->Execute("ALTER TABLE autofill_profiles_temp "
                      "RENAME TO autofill_profiles")) {
      return false;
    }
  }

  // Test the existence of the |type| column as an indication that a migration
  // is needed.  It is possible that the new |autofill_profile_phones| schema is
  // in place because the table was newly created when migrating from a
  // pre-version-23 database.
  if (db_->DoesColumnExist("autofill_profile_phones", "type")) {
    // Create a temporary copy of the autofill_profile_phones table in the
    // (newer) version 54 format.  This table removes the deprecated |type|
    // column.
    if (db_->DoesTableExist("autofill_profile_phones_temp") ||
        !db_->Execute("CREATE TABLE autofill_profile_phones_temp ( "
                      "guid VARCHAR, "
                      "number VARCHAR)")) {
      return false;
    }

    // Copy over the data from the autofill_profile_phones table.
    if (!db_->Execute("INSERT INTO autofill_profile_phones_temp "
                      "SELECT guid, number FROM autofill_profile_phones")) {
      return false;
    }

    // Delete the existing (version 53) table and replace it with the contents
    // of the temporary table.
    if (!db_->Execute("DROP TABLE autofill_profile_phones"))
      return false;
    if (!db_->Execute("ALTER TABLE autofill_profile_phones_temp "
                      "RENAME TO autofill_profile_phones")) {
      return false;
    }
  }

  return transaction.Commit();
}

bool AutofillTable::MigrateToVersion55MergeAutofillDatesTable() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  if (db_->DoesTableExist("autofill_temp") ||
      !db_->Execute("CREATE TABLE autofill_temp ("
                    "name VARCHAR, "
                    "value VARCHAR, "
                    "value_lower VARCHAR, "
                    "date_created INTEGER DEFAULT 0, "
                    "date_last_used INTEGER DEFAULT 0, "
                    "count INTEGER DEFAULT 1, "
                    "PRIMARY KEY (name, value))")) {
    return false;
  }

  // Slurp up the data from the existing table and write it to the new table.
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT name, value, value_lower, count, MIN(date_created),"
      " MAX(date_created) "
      "FROM autofill a JOIN autofill_dates ad ON a.pair_id=ad.pair_id "
      "GROUP BY name, value, value_lower, count"));
  while (s.Step()) {
    sql::Statement s_insert(db_->GetUniqueStatement(
        "INSERT INTO autofill_temp "
        "(name, value, value_lower, count, date_created, date_last_used) "
        "VALUES (?, ?, ?, ?, ?, ?)"));
    s_insert.BindString16(0, s.ColumnString16(0));
    s_insert.BindString16(1, s.ColumnString16(1));
    s_insert.BindString16(2, s.ColumnString16(2));
    s_insert.BindInt(3, s.ColumnInt(3));
    s_insert.BindInt64(4, s.ColumnInt64(4));
    s_insert.BindInt64(5, s.ColumnInt64(5));
    if (!s_insert.Run())
      return false;
  }

  if (!s.Succeeded())
    return false;

  // Delete the existing (version 54) tables and replace them with the contents
  // of the temporary table.
  if (!db_->Execute("DROP TABLE autofill") ||
      !db_->Execute("DROP TABLE autofill_dates") ||
      !db_->Execute("ALTER TABLE autofill_temp "
                    "RENAME TO autofill")) {
    return false;
  }

  // Create indices on the new table, for fast lookups.
  if (!db_->Execute("CREATE INDEX autofill_name ON autofill (name)") ||
      !db_->Execute("CREATE INDEX autofill_name_value_lower ON "
                    "autofill (name, value_lower)")) {
    return false;
  }


  return transaction.Commit();
}

bool AutofillTable::MigrateToVersion56AddProfileLanguageCodeForFormatting() {
  return db_->Execute("ALTER TABLE autofill_profiles "
                      "ADD COLUMN language_code VARCHAR");
}

bool AutofillTable::MigrateToVersion57AddFullNameField() {
  return db_->Execute("ALTER TABLE autofill_profile_names "
                      "ADD COLUMN full_name VARCHAR");
}

bool AutofillTable::MigrateToVersion60AddServerCards() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  if (!db_->DoesTableExist("masked_credit_cards") &&
      !db_->Execute("CREATE TABLE masked_credit_cards ("
                    "id VARCHAR,"
                    "status VARCHAR,"
                    "name_on_card VARCHAR,"
                    "type VARCHAR,"
                    "last_four VARCHAR,"
                    "exp_month INTEGER DEFAULT 0,"
                    "exp_year INTEGER DEFAULT 0)")) {
    return false;
  }

  if (!db_->DoesTableExist("unmasked_credit_cards") &&
      !db_->Execute("CREATE TABLE unmasked_credit_cards ("
                    "id VARCHAR,"
                    "card_number_encrypted VARCHAR)")) {
    return false;
  }

  if (!db_->DoesTableExist("server_addresses") &&
      !db_->Execute("CREATE TABLE server_addresses ("
                    "id VARCHAR,"
                    "company_name VARCHAR,"
                    "street_address VARCHAR,"
                    "address_1 VARCHAR,"
                    "address_2 VARCHAR,"
                    "address_3 VARCHAR,"
                    "address_4 VARCHAR,"
                    "postal_code VARCHAR,"
                    "sorting_code VARCHAR,"
                    "country_code VARCHAR,"
                    "language_code VARCHAR)")) {
    return false;
  }

  return transaction.Commit();
}

bool AutofillTable::MigrateToVersion61AddUsageStats() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  // Add use_count to autofill_profiles.
  if (!db_->DoesColumnExist("autofill_profiles", "use_count") &&
      !db_->Execute("ALTER TABLE autofill_profiles ADD COLUMN "
                    "use_count INTEGER NOT NULL DEFAULT 0")) {
    return false;
  }

  // Add use_date to autofill_profiles.
  if (!db_->DoesColumnExist("autofill_profiles", "use_date") &&
      !db_->Execute("ALTER TABLE autofill_profiles ADD COLUMN "
                    "use_date INTEGER NOT NULL DEFAULT 0")) {
    return false;
  }

  // Add use_count to credit_cards.
  if (!db_->DoesColumnExist("credit_cards", "use_count") &&
      !db_->Execute("ALTER TABLE credit_cards ADD COLUMN "
                    "use_count INTEGER NOT NULL DEFAULT 0")) {
    return false;
  }

  // Add use_date to credit_cards.
  if (!db_->DoesColumnExist("credit_cards", "use_date") &&
      !db_->Execute("ALTER TABLE credit_cards ADD COLUMN "
                    "use_date INTEGER NOT NULL DEFAULT 0")) {
    return false;
  }

  return transaction.Commit();
}

bool AutofillTable::MigrateToVersion62AddUsageStatsForUnmaskedCards() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  // Add use_count to unmasked_credit_cards.
  if (!db_->DoesColumnExist("unmasked_credit_cards", "use_count") &&
      !db_->Execute("ALTER TABLE unmasked_credit_cards ADD COLUMN "
                    "use_count INTEGER NOT NULL DEFAULT 0")) {
    return false;
  }

  // Add use_date to unmasked_credit_cards.
  if (!db_->DoesColumnExist("unmasked_credit_cards", "use_date") &&
      !db_->Execute("ALTER TABLE unmasked_credit_cards ADD COLUMN "
                    "use_date INTEGER NOT NULL DEFAULT 0")) {
    return false;
  }

  return transaction.Commit();
}

bool AutofillTable::MigrateToVersion63AddServerRecipientName() {
  if (!db_->DoesColumnExist("server_addresses", "recipient_name") &&
      !db_->Execute("ALTER TABLE server_addresses ADD COLUMN "
                    "recipient_name VARCHAR")) {
    return false;
  }
  return true;
}

bool AutofillTable::MigrateToVersion64AddUnmaskDate() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  if (!db_->DoesColumnExist("unmasked_credit_cards", "unmask_date") &&
      !db_->Execute("ALTER TABLE unmasked_credit_cards ADD COLUMN "
                    "unmask_date INTEGER NOT NULL DEFAULT 0")) {
    return false;
  }
  if (!db_->DoesColumnExist("server_addresses", "phone_number") &&
      !db_->Execute("ALTER TABLE server_addresses ADD COLUMN "
                    "phone_number VARCHAR")) {
    return false;
  }

  return transaction.Commit();
}

bool AutofillTable::MigrateToVersion65AddServerMetadataTables() {
  sql::Transaction transaction(db_);
  if (!transaction.Begin())
    return false;

  if (!db_->DoesTableExist("server_card_metadata") &&
      !db_->Execute("CREATE TABLE server_card_metadata ("
                    "id VARCHAR NOT NULL,"
                    "use_count INTEGER NOT NULL DEFAULT 0, "
                    "use_date INTEGER NOT NULL DEFAULT 0)")) {
    return false;
  }

  // This clobbers existing usage metadata, which is not synced and only
  // applies to unmasked cards. Trying to migrate the usage metadata would be
  // tricky as multiple devices for the same user get DB upgrades.
  if (!db_->Execute("UPDATE unmasked_credit_cards "
                    "SET use_count=0, use_date=0")) {
    return false;
  }

  if (!db_->DoesTableExist("server_address_metadata") &&
      !db_->Execute("CREATE TABLE server_address_metadata ("
                    "id VARCHAR NOT NULL,"
                    "use_count INTEGER NOT NULL DEFAULT 0, "
                    "use_date INTEGER NOT NULL DEFAULT 0)")) {
    return false;
  }

  // Get existing server addresses and generate IDs for them.
  sql::Statement s(db_->GetUniqueStatement(
      "SELECT "
        "id,"
        "recipient_name,"
        "company_name,"
        "street_address,"
        "address_1,"  // ADDRESS_HOME_STATE
        "address_2,"  // ADDRESS_HOME_CITY
        "address_3,"  // ADDRESS_HOME_DEPENDENT_LOCALITY
        "address_4,"  // Not supported in AutofillProfile yet.
        "postal_code,"  // ADDRESS_HOME_ZIP
        "sorting_code,"  // ADDRESS_HOME_SORTING_CODE
        "country_code,"  // ADDRESS_HOME_COUNTRY
        "phone_number,"  // PHONE_HOME_WHOLE_NUMBER
        "language_code "
      "FROM server_addresses addresses"));
  std::vector<AutofillProfile> profiles;
  while (s.Step()) {
    int index = 0;
    AutofillProfile profile(
        AutofillProfile::SERVER_PROFILE, s.ColumnString(index++));

    base::string16 recipient_name = s.ColumnString16(index++);
    profile.SetRawInfo(COMPANY_NAME, s.ColumnString16(index++));
    profile.SetRawInfo(ADDRESS_HOME_STREET_ADDRESS, s.ColumnString16(index++));
    profile.SetRawInfo(ADDRESS_HOME_STATE, s.ColumnString16(index++));
    profile.SetRawInfo(ADDRESS_HOME_CITY, s.ColumnString16(index++));
    profile.SetRawInfo(ADDRESS_HOME_DEPENDENT_LOCALITY,
                       s.ColumnString16(index++));
    index++;  // Skip address_4 which we haven't added to AutofillProfile yet.
    profile.SetRawInfo(ADDRESS_HOME_ZIP, s.ColumnString16(index++));
    profile.SetRawInfo(ADDRESS_HOME_SORTING_CODE, s.ColumnString16(index++));
    profile.SetRawInfo(ADDRESS_HOME_COUNTRY, s.ColumnString16(index++));
    base::string16 phone_number = s.ColumnString16(index++);
    profile.set_language_code(s.ColumnString(index++));
    profile.SetInfo(AutofillType(NAME_FULL), recipient_name,
                    profile.language_code());
    profile.SetInfo(AutofillType(PHONE_HOME_WHOLE_NUMBER), phone_number,
                    profile.language_code());
    profile.GenerateServerProfileIdentifier();
    profiles.push_back(profile);
  }

  // Reinsert with the generated IDs.
  sql::Statement delete_old(db_->GetUniqueStatement(
      "DELETE FROM server_addresses"));
  delete_old.Run();

  sql::Statement insert(db_->GetUniqueStatement(
      "INSERT INTO server_addresses("
        "id,"
        "recipient_name,"
        "company_name,"
        "street_address,"
        "address_1,"  // ADDRESS_HOME_STATE
        "address_2,"  // ADDRESS_HOME_CITY
        "address_3,"  // ADDRESS_HOME_DEPENDENT_LOCALITY
        "address_4,"  // Not supported in AutofillProfile yet.
        "postal_code,"  // ADDRESS_HOME_ZIP
        "sorting_code,"  // ADDRESS_HOME_SORTING_CODE
        "country_code,"  // ADDRESS_HOME_COUNTRY
        "phone_number,"  // PHONE_HOME_WHOLE_NUMBER
        "language_code) "
      "VALUES (?,?,?,?,?,?,?,?,?,?,?,?,?)"));
  for (const AutofillProfile& profile : profiles) {
    int index = 0;
    insert.BindString(index++, profile.server_id());
    insert.BindString16(index++, profile.GetRawInfo(NAME_FULL));
    insert.BindString16(index++, profile.GetRawInfo(COMPANY_NAME));
    insert.BindString16(index++,
                        profile.GetRawInfo(ADDRESS_HOME_STREET_ADDRESS));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_STATE));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_CITY));
    insert.BindString16(index++,
                        profile.GetRawInfo(ADDRESS_HOME_DEPENDENT_LOCALITY));
    index++;  // SKip address_4 which we haven't added to AutofillProfile yet.
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_ZIP));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_SORTING_CODE));
    insert.BindString16(index++, profile.GetRawInfo(ADDRESS_HOME_COUNTRY));
    insert.BindString16(index++, profile.GetRawInfo(PHONE_HOME_WHOLE_NUMBER));
    insert.BindString(index++, profile.language_code());
    insert.Run();
    insert.Reset(true);
  }

  return transaction.Commit();
}

}  // namespace autofill