In components/autofill, move browser/ to core/browser/

components/autofill/browser/validation.cc

-// Copyright (c) 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/browser/validation.h"
-
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_piece.h"
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/time.h"
-#include "components/autofill/browser/autofill_regexes.h"
-#include "components/autofill/browser/credit_card.h"
-#include "components/autofill/browser/state_names.h"
-
-using base::StringPiece16;
-
-namespace {
-
-// The separator characters for SSNs.
-const char16 kSSNSeparators[] = {' ', '-', 0};
-
-}  // namespace
-
-namespace autofill {
-
-bool IsValidCreditCardExpirationDate(const base::string16& year,
-                                     const base::string16& month,
-                                     const base::Time& now) {
-  base::string16 year_cleaned, month_cleaned;
-  TrimWhitespace(year, TRIM_ALL, &year_cleaned);
-  TrimWhitespace(month, TRIM_ALL, &month_cleaned);
-  if (year_cleaned.length() != 4)
-    return false;
-
-  base::Time::Exploded now_exploded;
-  now.LocalExplode(&now_exploded);
-  size_t current_year = size_t(now_exploded.year);
-  size_t current_month = size_t(now_exploded.month);
-
-  size_t cc_year;
-  if (!base::StringToSizeT(year_cleaned, &cc_year))
-    return false;
-  if (cc_year < current_year)
-    return false;
-
-  size_t cc_month;
-  if (!base::StringToSizeT(month_cleaned, &cc_month))
-    return false;
-  if (cc_year == current_year && cc_month < current_month)
-    return false;
-
-  return true;
-}
-
-bool IsValidCreditCardNumber(const base::string16& text) {
-  base::string16 number = CreditCard::StripSeparators(text);
-
-  // Credit card numbers are at most 19 digits in length [1]. 12 digits seems to
-  // be a fairly safe lower-bound [2].
-  // [1] http://www.merriampark.com/anatomycc.htm
-  // [2] http://en.wikipedia.org/wiki/Bank_card_number
-  const size_t kMinCreditCardDigits = 12;
-  const size_t kMaxCreditCardDigits = 19;
-  if (number.size() < kMinCreditCardDigits ||
-      number.size() > kMaxCreditCardDigits)
-    return false;
-
-  // Use the Luhn formula [3] to validate the number.
-  // [3] http://en.wikipedia.org/wiki/Luhn_algorithm
-  int sum = 0;
-  bool odd = false;
-  for (base::string16::reverse_iterator iter = number.rbegin();
-       iter != number.rend();
-       ++iter) {
-    if (!IsAsciiDigit(*iter))
-      return false;
-
-    int digit = *iter - '0';
-    if (odd) {
-      digit *= 2;
-      sum += digit / 10 + digit % 10;
-    } else {
-      sum += digit;
-    }
-    odd = !odd;
-  }
-
-  return (sum % 10) == 0;
-}
-
-bool IsValidCreditCardSecurityCode(const base::string16& text) {
-  if (text.size() < 3U || text.size() > 4U)
-    return false;
-
-  for (base::string16::const_iterator iter = text.begin();
-       iter != text.end();
-       ++iter) {
-    if (!IsAsciiDigit(*iter))
-      return false;
-  }
-  return true;
-}
-
-bool IsValidCreditCardSecurityCode(const base::string16& code,
-                                   const base::string16& number) {
-  CreditCard card;
-  card.SetRawInfo(CREDIT_CARD_NUMBER, number);
-  size_t required_length = 3;
-  if (card.type() == kAmericanExpressCard)
-    required_length = 4;
-
-  return code.length() == required_length;
-}
-
-bool IsValidEmailAddress(const base::string16& text) {
-  // E-Mail pattern as defined by the WhatWG. (4.10.7.1.5 E-Mail state)
-  const base::string16 kEmailPattern = ASCIIToUTF16(
-      "^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@"
-      "[a-zA-Z0-9-]+(?:\\.[a-zA-Z0-9-]+)*$");
-  return MatchesPattern(text, kEmailPattern);
-}
-
-bool IsValidState(const base::string16& text) {
-  return !state_names::GetAbbreviationForName(text).empty() ||
-         !state_names::GetNameForAbbreviation(text).empty();
-}
-
-bool IsValidZip(const base::string16& text) {
-  const base::string16 kZipPattern = ASCIIToUTF16("^\\d{5}(-\\d{4})?$");
-  return MatchesPattern(text, kZipPattern);
-}
-
-bool IsSSN(const string16& text) {
-  string16 number_string;
-  RemoveChars(text, kSSNSeparators, &number_string);
-
-  // A SSN is of the form AAA-GG-SSSS (A = area number, G = group number, S =
-  // serial number). The validation we do here is simply checking if the area,
-  // group, and serial numbers are valid.
-  //
-  // Historically, the area number was assigned per state, with the group number
-  // ascending in an alternating even/odd sequence. With that scheme it was
-  // possible to check for validity by referencing a table that had the highest
-  // group number assigned for a given area number. (This was something that
-  // Chromium never did though, because the "high group" values were constantly
-  // changing.)
-  //
-  // However, starting on 25 June 2011 the SSA began issuing SSNs randomly from
-  // all areas and groups. Group numbers and serial numbers of zero remain
-  // invalid, and areas 000, 666, and 900-999 remain invalid.
-  //
-  // References for current practices:
-  //   http://www.socialsecurity.gov/employer/randomization.html
-  //   http://www.socialsecurity.gov/employer/randomizationfaqs.html
-  //
-  // References for historic practices:
-  //   http://www.socialsecurity.gov/history/ssn/geocard.html
-  //   http://www.socialsecurity.gov/employer/stateweb.htm
-  //   http://www.socialsecurity.gov/employer/ssnvhighgroup.htm
-
-  if (number_string.length() != 9 || !IsStringASCII(number_string))
-    return false;
-
-  int area;
-  if (!base::StringToInt(StringPiece16(number_string.begin(),
-                                       number_string.begin() + 3),
-                         &area)) {
-    return false;
-  }
-  if (area < 1 ||
-      area == 666 ||
-      area >= 900) {
-    return false;
-  }
-
-  int group;
-  if (!base::StringToInt(StringPiece16(number_string.begin() + 3,
-                                       number_string.begin() + 5),
-                         &group)
-      || group == 0) {
-    return false;
-  }
-
-  int serial;
-  if (!base::StringToInt(StringPiece16(number_string.begin() + 5,
-                                       number_string.begin() + 9),
-                         &serial)
-      || serial == 0) {
-    return false;
-  }
-
-  return true;
-}
-
-}  // namespace autofill