diff options
Diffstat (limited to 'src/google/protobuf/util/internal/datapiece.cc')
-rw-r--r-- | src/google/protobuf/util/internal/datapiece.cc | 155 |
1 files changed, 122 insertions, 33 deletions
diff --git a/src/google/protobuf/util/internal/datapiece.cc b/src/google/protobuf/util/internal/datapiece.cc index b557429f..59bc28ae 100644 --- a/src/google/protobuf/util/internal/datapiece.cc +++ b/src/google/protobuf/util/internal/datapiece.cc @@ -47,6 +47,7 @@ using google::protobuf::EnumDescriptor; using google::protobuf::EnumValueDescriptor; ; ; +; using util::error::Code; using util::Status; using util::StatusOr; @@ -63,9 +64,9 @@ StatusOr<To> ValidateNumberConversion(To after, From before) { MathUtil::Sign<From>(before) == MathUtil::Sign<To>(after)) { return after; } else { - return InvalidArgument(::google::protobuf::internal::is_integral<From>::value + return InvalidArgument(std::is_integral<From>::value ? ValueAsString(before) - : ::google::protobuf::internal::is_same<From, double>::value + : std::is_same<From, double>::value ? DoubleAsString(before) : FloatAsString(before)); } @@ -76,7 +77,7 @@ StatusOr<To> ValidateNumberConversion(To after, From before) { // except conversion between double and float. template <typename To, typename From> StatusOr<To> NumberConvertAndCheck(From before) { - if (::google::protobuf::internal::is_same<From, To>::value) return before; + if (std::is_same<From, To>::value) return before; To after = static_cast<To>(before); return ValidateNumberConversion(after, before); @@ -86,26 +87,31 @@ StatusOr<To> NumberConvertAndCheck(From before) { // point types (double, float) only. template <typename To, typename From> StatusOr<To> FloatingPointToIntConvertAndCheck(From before) { - if (::google::protobuf::internal::is_same<From, To>::value) return before; + if (std::is_same<From, To>::value) return before; To after = static_cast<To>(before); return ValidateNumberConversion(after, before); } // For conversion between double and float only. -template <typename To, typename From> -StatusOr<To> FloatingPointConvertAndCheck(From before) { - if (MathLimits<From>::IsNaN(before)) { - return std::numeric_limits<To>::quiet_NaN(); - } +StatusOr<double> FloatToDouble(float before) { + // Casting float to double should just work as double has more precision + // than float. + return static_cast<double>(before); +} - To after = static_cast<To>(before); - if (MathUtil::AlmostEquals<To>(after, before)) { - return after; +StatusOr<float> DoubleToFloat(double before) { + if (MathLimits<double>::IsNaN(before)) { + return std::numeric_limits<float>::quiet_NaN(); + } else if (!MathLimits<double>::IsFinite(before)) { + // Converting a double +inf/-inf to float should just work. + return static_cast<float>(before); + } else if (before > std::numeric_limits<float>::max() || + before < -std::numeric_limits<float>::max()) { + // Double value outside of the range of float. + return InvalidArgument(DoubleAsString(before)); } else { - return InvalidArgument(::google::protobuf::internal::is_same<From, double>::value - ? DoubleAsString(before) - : FloatAsString(before)); + return static_cast<float>(before); } } @@ -161,20 +167,27 @@ StatusOr<uint64> DataPiece::ToUint64() const { StatusOr<double> DataPiece::ToDouble() const { if (type_ == TYPE_FLOAT) { - return FloatingPointConvertAndCheck<double, float>(float_); + return FloatToDouble(float_); } if (type_ == TYPE_STRING) { if (str_ == "Infinity") return std::numeric_limits<double>::infinity(); if (str_ == "-Infinity") return -std::numeric_limits<double>::infinity(); if (str_ == "NaN") return std::numeric_limits<double>::quiet_NaN(); - return StringToNumber<double>(safe_strtod); + StatusOr<double> value = StringToNumber<double>(safe_strtod); + if (value.ok() && !MathLimits<double>::IsFinite(value.ValueOrDie())) { + // safe_strtod converts out-of-range values to +inf/-inf, but we want + // to report them as errors. + return InvalidArgument(StrCat("\"", str_, "\"")); + } else { + return value; + } } return GenericConvert<double>(); } StatusOr<float> DataPiece::ToFloat() const { if (type_ == TYPE_DOUBLE) { - return FloatingPointConvertAndCheck<float, double>(double_); + return DoubleToFloat(double_); } if (type_ == TYPE_STRING) { if (str_ == "Infinity") return std::numeric_limits<float>::infinity(); @@ -248,11 +261,8 @@ StatusOr<string> DataPiece::ToBytes() const { if (type_ == TYPE_BYTES) return str_.ToString(); if (type_ == TYPE_STRING) { string decoded; - if (!WebSafeBase64Unescape(str_, &decoded)) { - if (!Base64Unescape(str_, &decoded)) { - return InvalidArgument( - ValueAsStringOrDefault("Invalid data in input.")); - } + if (!DecodeBase64(str_, &decoded)) { + return InvalidArgument(ValueAsStringOrDefault("Invalid data in input.")); } return decoded; } else { @@ -261,7 +271,9 @@ StatusOr<string> DataPiece::ToBytes() const { } } -StatusOr<int> DataPiece::ToEnum(const google::protobuf::Enum* enum_type) const { +StatusOr<int> DataPiece::ToEnum(const google::protobuf::Enum* enum_type, + bool use_lower_camel_for_enums, + bool ignore_unknown_enum_values) const { if (type_ == TYPE_NULL) return google::protobuf::NULL_VALUE; if (type_ == TYPE_STRING) { @@ -269,21 +281,39 @@ StatusOr<int> DataPiece::ToEnum(const google::protobuf::Enum* enum_type) const { string enum_name = str_.ToString(); const google::protobuf::EnumValue* value = FindEnumValueByNameOrNull(enum_type, enum_name); - if (value != NULL) return value->number(); + if (value != nullptr) return value->number(); + + // Check if int version of enum is sent as string. + StatusOr<int32> int_value = ToInt32(); + if (int_value.ok()) { + if (const google::protobuf::EnumValue* enum_value = + FindEnumValueByNumberOrNull(enum_type, int_value.ValueOrDie())) { + return enum_value->number(); + } + } + // Next try a normalized name. for (string::iterator it = enum_name.begin(); it != enum_name.end(); ++it) { *it = *it == '-' ? '_' : ascii_toupper(*it); } value = FindEnumValueByNameOrNull(enum_type, enum_name); - if (value != NULL) return value->number(); - } else { - StatusOr<int32> value = ToInt32(); - if (value.ok()) { - if (const google::protobuf::EnumValue* enum_value = - FindEnumValueByNumberOrNull(enum_type, value.ValueOrDie())) { - return enum_value->number(); - } + if (value != nullptr) return value->number(); + + // If use_lower_camel_for_enums is true try with enum name without + // underscore. This will also accept camel case names as the enum_name has + // been normalized before. + if (use_lower_camel_for_enums) { + value = FindEnumValueByNameWithoutUnderscoreOrNull(enum_type, enum_name); + if (value != nullptr) return value->number(); } + + // If ignore_unknown_enum_values is true an unknown enum value is treated + // as the default + if (ignore_unknown_enum_values) return enum_type->enumvalue(0).number(); + } else { + // We don't need to check whether the value is actually declared in the + // enum because we preserve unknown enum values as well. + return ToInt32(); } return InvalidArgument( ValueAsStringOrDefault("Cannot find enum with given value.")); @@ -313,11 +343,70 @@ StatusOr<To> DataPiece::GenericConvert() const { template <typename To> StatusOr<To> DataPiece::StringToNumber(bool (*func)(StringPiece, To*)) const { + if (str_.size() > 0 && (str_[0] == ' ' || str_[str_.size() - 1] == ' ')) { + return InvalidArgument(StrCat("\"", str_, "\"")); + } To result; if (func(str_, &result)) return result; return InvalidArgument(StrCat("\"", str_.ToString(), "\"")); } +bool DataPiece::DecodeBase64(StringPiece src, string* dest) const { + // Try web-safe decode first, if it fails, try the non-web-safe decode. + if (WebSafeBase64Unescape(src, dest)) { + if (use_strict_base64_decoding_) { + // In strict mode, check if the escaped version gives us the same value as + // unescaped. + string encoded; + // WebSafeBase64Escape does no padding by default. + WebSafeBase64Escape(*dest, &encoded); + // Remove trailing padding '=' characters before comparison. + StringPiece src_no_padding = StringPiece(src).substr( + 0, StringEndsWith(src, "=") ? src.find_last_not_of('=') + 1 + : src.length()); + return encoded == src_no_padding; + } + return true; + } + + if (Base64Unescape(src, dest)) { + if (use_strict_base64_decoding_) { + string encoded; + Base64Escape( + reinterpret_cast<const unsigned char*>(dest->data()), dest->length(), + &encoded, false); + StringPiece src_no_padding = StringPiece(src).substr( + 0, StringEndsWith(src, "=") ? src.find_last_not_of('=') + 1 + : src.length()); + return encoded == src_no_padding; + } + return true; + } + + return false; +} + +void DataPiece::InternalCopy(const DataPiece& other) { + type_ = other.type_; + use_strict_base64_decoding_ = other.use_strict_base64_decoding_; + switch (type_) { + case TYPE_INT32: + case TYPE_INT64: + case TYPE_UINT32: + case TYPE_UINT64: + case TYPE_DOUBLE: + case TYPE_FLOAT: + case TYPE_BOOL: + case TYPE_ENUM: + case TYPE_NULL: + case TYPE_BYTES: + case TYPE_STRING: { + str_ = other.str_; + break; + } + } +} + } // namespace converter } // namespace util } // namespace protobuf |