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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "components/payments/payments_validators.h" | |
| 6 | |
| 7 #include "third_party/re2/src/re2/re2.h" | |
| 8 #include "url/gurl.h" | |
| 9 | |
| 10 namespace payments { | |
| 11 | |
| 12 // We limit the maximum length of string to 2048 bytes for security reasons. | |
| 13 static const int maximumStringLength = 2048; | |
| 14 | |
| 15 bool PaymentsValidators::isValidCurrencyCodeFormat( | |
| 16 const std::string& code, | |
| 17 const std::string& system, | |
| 18 std::string* optionalErrorMessage) { | |
| 19 if (system == "urn:iso:std:iso:4217") { | |
| 20 if (RE2::FullMatch(code, "[A-Z]{3}")) | |
| 21 return true; | |
| 22 | |
| 23 if (optionalErrorMessage) | |
| 24 *optionalErrorMessage = "'" + code + | |
| 25 "' is not a valid ISO 4217 currency code, should " | |
| 26 "be 3 upper case letters [A-Z]"; | |
| 27 | |
| 28 return false; | |
| 29 } | |
| 30 | |
| 31 if (code.size() > maximumStringLength) { | |
| 32 if (optionalErrorMessage) | |
| 33 *optionalErrorMessage = | |
| 34 "The currency code should be at most 2048 characters long"; | |
| 35 return false; | |
| 36 } | |
| 37 if (!GURL(system).is_valid()) { | |
| 38 if (optionalErrorMessage) | |
| 39 *optionalErrorMessage = | |
| 40 "The system should be a valid URL"; | |
| 41 return false; | |
| 42 } | |
| 43 return true; | |
| 44 } | |
| 45 | |
| 46 bool PaymentsValidators::isValidAmountFormat( | |
| 47 const std::string& amount, | |
| 48 std::string* optionalErrorMessage) { | |
| 49 if (RE2::FullMatch(amount, "-?[0-9]+(\\.[0-9]+)?")) | |
| 50 return true; | |
| 51 | |
| 52 if (optionalErrorMessage) | |
| 53 *optionalErrorMessage = "'" + amount + "' is not a valid amount format"; | |
| 54 | |
| 55 return false; | |
| 56 } | |
| 57 | |
| 58 bool PaymentsValidators::isValidCountryCodeFormat( | |
| 59 const std::string& code, | |
| 60 std::string* optionalErrorMessage) { | |
| 61 if (RE2::FullMatch(code, "[A-Z]{2}")) | |
| 62 return true; | |
| 63 | |
| 64 if (optionalErrorMessage) | |
| 65 *optionalErrorMessage = "'" + code + | |
| 66 "' is not a valid CLDR country code, should be 2 " | |
| 67 "upper case letters [A-Z]"; | |
| 68 | |
| 69 return false; | |
| 70 } | |
| 71 | |
| 72 bool PaymentsValidators::isValidLanguageCodeFormat( | |
| 73 const std::string& code, | |
| 74 std::string* optionalErrorMessage) { | |
| 75 if (RE2::FullMatch(code, "([a-z]{2,3})?")) | |
| 76 return true; | |
| 77 | |
| 78 if (optionalErrorMessage) | |
| 79 *optionalErrorMessage = "'" + code + | |
| 80 "' is not a valid BCP-47 language code, should be " | |
| 81 "2-3 lower case letters [a-z]"; | |
| 82 | |
| 83 return false; | |
| 84 } | |
| 85 | |
| 86 bool PaymentsValidators::isValidScriptCodeFormat( | |
| 87 const std::string& code, | |
| 88 std::string* optionalErrorMessage) { | |
| 89 if (RE2::FullMatch(code, "([A-Z][a-z]{3})?")) | |
| 90 return true; | |
| 91 | |
| 92 if (optionalErrorMessage) | |
| 93 *optionalErrorMessage = "'" + code + | |
| 94 "' is not a valid ISO 15924 script code, should be " | |
| 95 "an upper case letter [A-Z] followed by 3 lower " | |
| 96 "case letters [a-z]"; | |
| 97 | |
| 98 return false; | |
| 99 } | |
| 100 | |
| 101 bool PaymentsValidators::isValidShippingAddress( | |
| 102 const mojom::PaymentAddressPtr& address, | |
| 103 std::string* optionalErrorMessage) { | |
| 104 if (!isValidCountryCodeFormat(address->country, optionalErrorMessage)) | |
| 105 return false; | |
| 106 | |
| 107 if (!isValidLanguageCodeFormat(address->language_code, optionalErrorMessage)) | |
| 108 return false; | |
| 109 | |
| 110 if (!isValidScriptCodeFormat(address->script_code, optionalErrorMessage)) | |
| 111 return false; | |
| 112 | |
| 113 if (address->language_code.empty() && !address->script_code.empty()) { | |
| 114 if (optionalErrorMessage) | |
| 115 *optionalErrorMessage = | |
| 116 "If language code is empty, then script code should also be empty"; | |
| 117 | |
| 118 return false; | |
| 119 } | |
| 120 | |
| 121 return true; | |
| 122 } | |
| 123 | |
| 124 bool PaymentsValidators::isValidErrorMsgFormat( | |
| 125 const std::string& error, | |
| 126 std::string* optionalErrorMessage) { | |
| 127 if (error.length() <= maximumStringLength) | |
| 128 return true; | |
| 129 | |
| 130 if (optionalErrorMessage) | |
| 131 *optionalErrorMessage = | |
| 132 "Error message should be at most 2048 characters long"; | |
| 133 | |
| 134 return false; | |
| 135 } | |
| 136 | |
| 137 } // namespace payments | |
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Chromium Code Reviews
Issue 2713033004:
Layered component for web payments (Closed)
