1 /** @file 2 3 Define the type used to store user-sensitive HTTP fields (such as cookies). 4 5 @section license License 6 7 Licensed to the Apache Software Foundation (ASF) under one 8 or more contributor license agreements. See the NOTICE file 9 distributed with this work for additional information 10 regarding copyright ownership. The ASF licenses this file 11 to you under the Apache License, Version 2.0 (the 12 "License"); you may not use this file except in compliance 13 with the License. You may obtain a copy of the License at 14 15 http://www.apache.org/licenses/LICENSE-2.0 16 17 Unless required by applicable law or agreed to in writing, software 18 distributed under the License is distributed on an "AS IS" BASIS, 19 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 20 See the License for the specific language governing permissions and 21 limitations under the License. 22 */ 23 24 #pragma once 25 26 #include <algorithm> 27 #include <strings.h> 28 #include <string> 29 #include <string_view> 30 #include <unordered_set> 31 32 namespace traffic_dump 33 { 34 // A case-insensitive comparator used for comparing HTTP field names. 35 struct InsensitiveCompare { 36 bool operatorInsensitiveCompare37 operator()(std::string_view a, std::string_view b) const 38 { 39 return strcasecmp(a.data(), b.data()) == 0; 40 } 41 }; 42 43 // A case-insensitive hash functor for HTTP field names. 44 struct StringHashByLower { 45 public: 46 size_t operatorStringHashByLower47 operator()(std::string_view str) const 48 { 49 std::string lower; 50 std::transform(str.begin(), str.end(), lower.begin(), [](unsigned char c) -> unsigned char { return std::tolower(c); }); 51 return std::hash<std::string>()(lower); 52 } 53 }; 54 55 /** The type used to store the set of user-sensitive HTTP fields, such as 56 * "Cookie" and "Set-Cookie". */ 57 using sensitive_fields_t = std::unordered_set<std::string, StringHashByLower, InsensitiveCompare>; 58 59 } // namespace traffic_dump 60