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/* * Phusion Passenger - https://www.phusionpassenger.com/ * Copyright (c) 2015-2018 Phusion Holding B.V. * * "Passenger", "Phusion Passenger" and "Union Station" are registered * trademarks of Phusion Holding B.V. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #ifndef _PASSENGER_APPLICATION_POOL2_API_KEY_H_ #define _PASSENGER_APPLICATION_POOL2_API_KEY_H_ #include <oxt/macros.hpp> #include <string> #include <cstring> #include <Exceptions.h> #include <StaticString.h> #include <StrIntTools/StrIntUtils.h> namespace Passenger { namespace ApplicationPool2 { using namespace std; /** * An API key is a string that determines which app a particular ApiServer * client may access. It is automatically generated by a Group and passed to * all application processes that it spawns. Application processes can then * use that API key to perform API calls by connecting to the ApiServer. * * An API key is transient, not persistent. That is, it is only valid during * the life time of a Group. It is not pre-generated by the user. * * An API key is unique per Pool, so may be used to uniquely identify a Group * object within a Pool. * * An API key may be null, which means that it's not given. * * There also exists a special "super" API key. This API key doesn't have a * particular value, so it cannot be used to uniquely identify a Group. Instead, * its purpose is to signal that the client is authorized to access all apps in * the Pool. Super API keys are associated with ApiServer clients that are * authenticated with one of the API accounts. */ class ApiKey { public: static const unsigned int SIZE = 16; private: /* * On x86_64 the value is as big as a StaticString, * so might as well directly embed the data instead. */ char value[SIZE]; OXT_FORCE_INLINE bool validateNonSuperKeyValueChar(const char ch) const { return (ch >= 'a' && ch <= 'z') || (ch >= 'A' && ch <= 'Z') || (ch >= '0' && ch <= '9'); } void validateNonSuperKeyValue(const StaticString &value) const { const char *data = value.data(); const char *end = value.data() + value.size(); while (data < end) { if (!validateNonSuperKeyValueChar(*data)) { throw ArgumentException("API keys may only contain the characters a-z, A-Z and 0-9."); } data++; } } public: ApiKey() { value[0] = '\0'; } ApiKey(const StaticString &other) { if (other.size() != SIZE) { throw ArgumentException("API keys must be exactly " + Passenger::toString(SIZE) + " characters in length"); } validateNonSuperKeyValue(other); memcpy(value, other.data(), SIZE); } ApiKey& operator=(const ApiKey &other) = default; ApiKey(const ApiKey &other) { memcpy(value, other.value, SIZE); } static ApiKey makeSuper() { ApiKey key; key.value[0] = '!'; assert(key.isSuper()); return key; } bool isNull() const { return value[0] == '\0'; } bool isSuper() const { return value[0] == '!'; } bool constantTimeCompare(const StaticString &other) const { return Passenger::constantTimeCompare(toStaticString(), other); } bool constantTimeCompare(const ApiKey &other) const { return Passenger::constantTimeCompare(toStaticString(), other.toStaticString()); } string toString() const { return toStaticString().toString(); } StaticString toStaticString() const { if (value[0] == '\0') { return StaticString(); } else if (value[0] == '!') { return StaticString("superkey"); } else { return StaticString(value, SIZE); } } bool operator==(const StaticString &other) const { return other.size() == SIZE && memcmp(value, other.data(), SIZE) == 0; } bool operator==(const ApiKey &other) const { return memcmp(value, other.value, SIZE) == 0; } }; } // namespace ApplicationPool2 } // namespace Passenger #endif /* _PASSENGER_APPLICATION_POOL2_API_KEY_H_ */