diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..ec94c2c --- /dev/null +++ b/.gitignore @@ -0,0 +1,9 @@ +bin/ +obj/ +*.user +*.suo +.vs +x64/ +Release/ +Debug/ +build/ diff --git a/.gitmodules b/.gitmodules new file mode 100644 index 0000000..a8dfb73 --- /dev/null +++ b/.gitmodules @@ -0,0 +1,3 @@ +[submodule "RandomX"] + path = RandomX + url = https://github.com/tevador/RandomX diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..b2da19d --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,50 @@ +# Copyright (c) 2020, tevador +# +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without modification, are +# permitted provided that the following conditions are met: +# +# 1. Redistributions of source code must retain the above copyright notice, this list of +# conditions and the following disclaimer. +# +# 2. Redistributions in binary form must reproduce the above copyright notice, this list +# of conditions and the following disclaimer in the documentation and/or other +# materials provided with the distribution. +# +# 3. Neither the name of the copyright holder nor the names of its contributors may be +# used to endorse or promote products derived from this software without specific +# prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +# THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +# STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +cmake_minimum_required(VERSION 2.8.7) + +project(randomx-service) + +add_subdirectory("RandomX") + +if(NOT Threads_FOUND AND UNIX AND NOT APPLE) + set(THREADS_PREFER_PTHREAD_FLAG ON) + find_package(Threads) +endif() + +add_executable(${PROJECT_NAME} +src/main.cpp +src/service.cpp +src/service_worker.cpp +src/thread_pool.cpp) + +set_property(TARGET randomx-service PROPERTY CXX_STANDARD 11) + +target_link_libraries(${PROJECT_NAME} + PRIVATE randomx + PRIVATE ${CMAKE_THREAD_LIBS_INIT}) diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..c984977 --- /dev/null +++ b/LICENSE @@ -0,0 +1,51 @@ +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +-------------------------------------------------------------------------------- +HTTPLIB is licensed under the MIT license: + +Copyright (c) 2019 Yuji Hirose. +Copyright (c) 2020 tevador + +All rights reserved. + +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. diff --git a/README.md b/README.md new file mode 100644 index 0000000..0c7b3cf --- /dev/null +++ b/README.md @@ -0,0 +1,71 @@ +# RandomX Service + +RandomX Service provides a simple HTTP API to calculate [RandomX](https://github.com/tevador/RandomX) proof of work (PoW). + +## Use cases + +* Fast PoW verification for Node.js based pools +* Web-mining with explicit user consent (see below) +* Access to RandomX for clients who cannot link directly to librandomx + +## Building + +### Linux +Prerequisites: cmake, make, gcc +``` +git clone --recursive https://github.com/tevador/randomx-service +cd randomx-service +./build.sh +``` + +### Windows +Prerequisites: cmake, Visual Studio +``` +git clone --recursive https://github.com/tevador/randomx-service +cd randomx-service +build.cmd +``` + +## Usage + +``` +Usage: ./randomx-service [OPTIONS] +Supported options: + -host Bind to a specific address (default: localhost) + -port Bind to a specific port (default: 39093) + -threads Use a specific number of threads (default: all CPU threads) + -flags Use specific RandomX flags (default: auto) + -origin Allow cross-origin requests from a specific web page + -log Log all HTTP requests to stdout + -help Display this message +``` + +## RandomX Service API + +The service provides the following API methods: + +* `GET /info` +* `POST /seed` +* `POST /hash` +* `POST /batch` + +Refer to [doc/API.md](doc/API.md). + +## Web-mining + +To allow requests from the browser, use the `-origin` command line option. For example, to allow the site https://example.com to access the service, this command line option should be used: + +``` +./randomx-service -origin https://example.com +``` + +### Notes +* using the `/batch` API, web-miners are able to reach similar performance as native miners +* HTTP requests to localhost from HTTP websites are currently blocked by [Firefox](https://bugzilla.mozilla.org/show_bug.cgi?id=1488740) and [Safari](https://bugs.webkit.org/show_bug.cgi?id=171934), but this behavior may change in the future (refer to the linked bugtrackers). + +## Donations + +XMR: +``` +845xHUh5GvfHwc2R8DVJCE7BT2sd4YEcmjG8GNSdmeNsP5DTEjXd1CNgxTcjHjiFuthRHAoVEJjM7GyKzQKLJtbd56xbh7V +``` diff --git a/RandomX b/RandomX new file mode 160000 index 0000000..ac574e3 --- /dev/null +++ b/RandomX @@ -0,0 +1 @@ +Subproject commit ac574e3743b00680445994cbe2c38ba0f52db70d diff --git a/build.cmd b/build.cmd new file mode 100644 index 0000000..4a92b41 --- /dev/null +++ b/build.cmd @@ -0,0 +1,31 @@ +@echo off + +set BUILD_DIR=build + +set MSBUILD="c:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\MSBuild\Current\Bin\MSBuild.exe" +if not exist %MSBUILD% set MSBUILD="c:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\MSBuild.exe" +if not exist %MSBUILD% set MSBUILD="c:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise\MSBuild\Current\Bin\MSBuild.exe" +if not exist %MSBUILD% set MSBUILD="c:\Program Files (x86)\Microsoft Visual Studio\2017\Community\MSBuild\Current\Bin\MSBuild.exe" +if not exist %MSBUILD% set MSBUILD="c:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\MSBuild\Current\Bin\MSBuild.exe" +if not exist %MSBUILD% set MSBUILD="C:\Program Files (x86)\MSBuild\14.0\Bin\MsBuild.exe" +if not exist %MSBUILD% goto msbuild_not_found + +if not exist %BUILD_DIR% mkdir %BUILD_DIR% + +cd %BUILD_DIR% + +cmake .. +if errorlevel 1 goto end + +%MSBUILD% /nologo /fl /restore /p:Configuration=Release randomx-service.sln +if errorlevel 1 goto end + +echo. +Release\randomx-service.exe -help +goto end + +:msbuild_not_found +echo ERROR: MSBuild not found + +:end +pause \ No newline at end of file diff --git a/build.sh b/build.sh new file mode 100755 index 0000000..5d69c06 --- /dev/null +++ b/build.sh @@ -0,0 +1,25 @@ +#!/bin/bash + +BUILD=build + +if [[ ! -d "$BUILD" ]] +then + mkdir "$BUILD" +fi + +cd "$BUILD" +cmake .. + +if [ $? -ne 0 ] +then + exit 1 +fi + +make + +if [ $? -ne 0 ] +then + exit 1 +fi + +./randomx-service -help \ No newline at end of file diff --git a/doc/API.md b/doc/API.md new file mode 100644 index 0000000..fbaaa20 --- /dev/null +++ b/doc/API.md @@ -0,0 +1,154 @@ +## RandomX Service API + +### GET /info + +Returns information about the service instance: +* service version +* the supported algorithm (always `rx/0`) +* the maximum number of parallel requests the service can support + +#### Example + +``` +curl http://localhost:39093/info +``` +``` +RandomX Service v1.0.0 +algorithm: rx/0 +threads: 2 +``` + +### POST /seed + +Reinitializes the RandomX cache and dataset with the provided seed value. The seed is extracted from the request body based on the `Content-Type` header. + +This request is exclusive - it will block until all preceding requests have completed and all subsequent requests to the service will be paused until the reseeding process is complete. This ensures that all hashes are always calculated with a well-defined seed value. + +#### Headers + +##### Content-Type: `application/x.randomx+bin` +* the POST body is interpreted as a binary literal + +##### Content-Type: `application/x.randomx+hex` +* the POST body is interpreted as a base16 (hex) encoded value + +#### Responses +##### 204 No Content +* the request was successful; all subsequent hashes will be calculated with the new seed + +##### 400 Bad Request +* the request body is malformed + +##### 413 Payload Too Large +* the provided seed value is larger than 60 bytes + +##### 415 Unsupported Media Type +* the `Content-Type` header is missing or has an unsupported value + +#### Example + +``` +curl -X POST http://localhost:39093/seed -H "Content-Type: application/x.randomx+bin" -d "test key 000" +``` + +### POST /hash + +Calculates a RandomX hash value of the provided input. The input is extracted from the request body based on the `Content-Type` header. + +#### Headers + +##### `Content-Type: application/x.randomx+bin` +* the POST body is interpreted as a binary literal + +##### `Content-Type: application/x.randomx+hex` +* the POST body is interpreted as a base16 (hex) encoded value + +##### `Accept: application/x.randomx+bin` +* the hash will be provided in binary format +* this header is optional + +##### `RandomX-Seed: [base16]` +* sets the RandomX seed required for this hash to be valid +* the seed value must be in base16 (hex) format +* this header is optional +* it is recommended to provide this header to avoid invalid hashes caused by reseeding + +#### Responses +##### 200 OK +* the request was successful; the response body contains the hash value, encoded as a base16 (hex) string (64 characters) +* if the `Accept` header was set to `application/x.randomx+bin`, the hash is provided as a binary value (32 bytes) + +##### 400 Bad Request +* the request body is malformed + +##### 403 Forbidden +* the RandomX cache and dataset have not been initialized (the `/seed` method must be called first) + +##### 413 Payload Too Large +* the POST body is larger than 20000 bytes + +##### 415 Unsupported Media Type +* the `Content-Type` header is missing or has an unsupported value + +##### 422 Unprocessable Entity +* the `RandomX-Seed` header was provided and it doesn't match the current seed value + +#### Example + +``` +curl -X POST http://localhost:39093/hash -H "Content-Type: application/x.randomx+bin" -d "This is a test" +``` +``` +639183aae1bf4c9a35884cb46b09cad9175f04efd7684e7262a0ac1c2f0b4e3f +``` + +### POST /batch + +Calculates up to 256 RandomX hashes at once. The list of input values is provided in the request body and interpreted based on the `Content-Type` header. + +#### Headers +##### `Content-Type: application/x.randomx.batch+bin` +* the POST body is interpreted as a binary sequence of length-prefixed inputs; the length of each input may not exceed 127 bytes (the length prefix is a single byte) + +##### `Content-Type: application/x.randomx.batch+hex` +* the POST body is interpreted as a list of base16 (hex) encoded inputs separated by a single space character + +##### `Accept: application/x.randomx.batch+bin` +* the hashes will be provided in binary format +* this header is optional + +##### `RandomX-Seed: [base16]` +* sets the RandomX seed required for this batch of hashes to be valid +* the seed value must be in base16 (hex) format +* this header is optional +* it is recommended to provide this header to avoid invalid hashes caused by reseeding + +#### Responses +##### 200 OK +* the request was successful; the response body contains the hashes of the requested inputs +* by default, the hashes are provided in hex format (64 characters) separated by a single space character +* if the `Accept` header was set to `application/x.randomx.batch+bin`, the hashes are provided in binary length-prefixed format (each hash is 32 bytes, so the prefix is `0x20`, which is conincidentally also a space character) + +##### 400 Bad Request +* the request body is empty or malformed + +##### 403 Forbidden +* the RandomX cache and dataset have not been initialized (the `/seed` method must be called first) + +##### 413 Payload Too Large +* the POST body is larger than 20000 bytes or the batch contains more than 256 inputs + +##### 415 Unsupported Media Type +* the `Content-Type` header is missing or has an unsupported value + +##### 422 Unprocessable Entity +* the `RandomX-Seed` header was provided and it doesn't match the current seed value + +#### Example + +``` +curl -X POST http://localhost:39093/batch -H "Content-Type: application/x.randomx.batch+hex" -d "74657374203031 74657374203032 74657374203033 74657374203034" +``` +``` +59fd4ca6eec3c2e60f67cd7605568c2da650b5e2beea5c563a7d0383b42e26b1 3a630fc27de8badc347aac4400fcfb261b1b0e0e75b393f50b1d5dc2603d5bef 600062e17f1b5aa6a907a94b9f787f465ab8ad142fb08261fc6ea12befa1bb97 aacdfc478af56ce1574db920ff48b88c0ab531b6090ffb44ac03bccb4f0d0fa8 +``` \ No newline at end of file diff --git a/doc/node-benchmark.js b/doc/node-benchmark.js new file mode 100644 index 0000000..aa89901 --- /dev/null +++ b/doc/node-benchmark.js @@ -0,0 +1,38 @@ +const fetch = require('node-fetch'); + +function randomx_request(url, data, content) { + return fetch(url, { + method: 'POST', + body: data, + headers: { + "Content-Type": content, + "Accept": content + } + }); +} + +const hashes = 10000; +const hashingBlob = Buffer.from('4c0b0b98bea7e805e0010a2126d287a2a0cc833d312cb786385a7c2f9de69d25537f584a9bc9977b00000000666fd8753bf61a8631f12984e3fd44f4014eca629276817b56f32e9b68bd82f416', 'hex'); +const batchSize = 256; + +async function bechmark() { + let start = Date.now(); + let nonce = 0; + let offset = 0; + for (let i = hashes; i > 0; i -= batchSize) { + let batch = Buffer.alloc(0); + let size = i < batchSize ? i : batchSize; + console.log("batch: " + size); + for (let j = 0; j < size; ++j) { + hashingBlob.writeUInt32LE(nonce++, 40); + batch = Buffer.concat([batch, hashingBlob]); + } + var res = await randomx_request('http://localhost:39093/batch', batch, 'application/x.randomx.batch+bin'); + if (res.status != 200) + throw Error("Unexpected status: HTTP " + res.status); + } + let end = Date.now(); + console.log("Perf: " + 1000 * hashes / (end - start) + " H/s"); +} + +bechmark(); diff --git a/src/hex.h b/src/hex.h new file mode 100644 index 0000000..77e7527 --- /dev/null +++ b/src/hex.h @@ -0,0 +1,73 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include +#include + +constexpr char hexmap[] = "0123456789abcdef"; + +inline std::string bin2hex(const char* data, size_t size) { + std::string hex; + hex.resize(size * 2); + for (unsigned i = 0; i < size; ++i) { + hex[2 * i + 0] = hexmap[(data[i] & 0xF0) >> 4]; + hex[2 * i + 1] = hexmap[data[i] & 0x0F]; + } + return hex; +} + +inline static char parseNibble(uint8_t hex) { + if (hex > 0x40 && hex <= 0x46) { + return hex - ('A' - 10); + } + if (hex > 0x60 && hex <= 0x66) { + return hex - ('a' - 10); + } + else if (hex >= 0x30 && hex <= 0x39) { + return hex & 0xF; + } + return CHAR_MAX; +} + +inline bool hex2bin(const char* in, int length, char* out) { + if ((length % 2) != 0) { + return false; + } + for (int i = 0; i < length; i += 2) { + char nibble1 = parseNibble(*in++); + if (nibble1 == CHAR_MAX) + return false; + char nibble2 = parseNibble(*in++); + if (nibble2 == CHAR_MAX) + return false; + *out++ = nibble1 << 4 | nibble2; + } + return true; +} diff --git a/src/httplib.h b/src/httplib.h new file mode 100644 index 0000000..4ca7b3c --- /dev/null +++ b/src/httplib.h @@ -0,0 +1,3593 @@ +// +// Copyright (c) 2019 Yuji Hirose. All rights reserved. +// Copyright (c) 2020 tevador +// +// 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 CPPHTTPLIB_HTTPLIB_H +#define CPPHTTPLIB_HTTPLIB_H + +/* + * Configuration + */ +#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND 5 +#define CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND 0 +#define CPPHTTPLIB_KEEPALIVE_MAX_COUNT 5 +#define CPPHTTPLIB_READ_TIMEOUT_SECOND 5 +#define CPPHTTPLIB_READ_TIMEOUT_USECOND 0 +#define CPPHTTPLIB_REQUEST_URI_MAX_LENGTH 256 +#define CPPHTTPLIB_REDIRECT_MAX_COUNT 20 +#define CPPHTTPLIB_PAYLOAD_MAX_LENGTH (20000u) +#define CPPHTTPLIB_RECV_BUFSIZ size_t(4096u) +#define CPPHTTPLIB_THREAD_POOL_COUNT 0 +#define CPPHTTPLIB_USE_POLL + +#ifdef _WIN32 +#ifndef _CRT_SECURE_NO_WARNINGS +#define _CRT_SECURE_NO_WARNINGS +#endif //_CRT_SECURE_NO_WARNINGS + +#ifndef _CRT_NONSTDC_NO_DEPRECATE +#define _CRT_NONSTDC_NO_DEPRECATE +#endif //_CRT_NONSTDC_NO_DEPRECATE + +#if defined(_MSC_VER) +#ifdef _WIN64 +typedef __int64 ssize_t; +#else +typedef int ssize_t; +#endif + +#if _MSC_VER < 1900 +#define snprintf _snprintf_s +#endif +#endif // _MSC_VER + +#ifndef S_ISREG +#define S_ISREG(m) (((m)&S_IFREG) == S_IFREG) +#endif // S_ISREG + +#ifndef S_ISDIR +#define S_ISDIR(m) (((m)&S_IFDIR) == S_IFDIR) +#endif // S_ISDIR + +#ifndef NOMINMAX +#define NOMINMAX +#endif // NOMINMAX + +#include +#include +#include + +#ifndef WSA_FLAG_NO_HANDLE_INHERIT +#define WSA_FLAG_NO_HANDLE_INHERIT 0x80 +#endif + +#ifdef _MSC_VER +#pragma comment(lib, "ws2_32.lib") +#endif + +#ifndef strcasecmp +#define strcasecmp _stricmp +#endif // strcasecmp + +typedef SOCKET socket_t; +#ifdef CPPHTTPLIB_USE_POLL +#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout) +#endif + +#else // not _WIN32 + +#include +#include +#include +#include +#ifdef CPPHTTPLIB_USE_POLL +#include +#endif +#include +#include +#include +#include +#include + +typedef int socket_t; +#define INVALID_SOCKET (-1) +#endif //_WIN32 + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "task_queue.h" + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +#include +#include +#include + +// #if OPENSSL_VERSION_NUMBER < 0x1010100fL +// #error Sorry, OpenSSL versions prior to 1.1.1 are not supported +// #endif + +#if OPENSSL_VERSION_NUMBER < 0x10100000L +#include +inline const unsigned char *ASN1_STRING_get0_data(const ASN1_STRING *asn1) { + return M_ASN1_STRING_data(asn1); +} +#endif +#endif + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +#include +#endif + +namespace httplib { + +namespace detail { + +struct ci { + bool operator()(const std::string &s1, const std::string &s2) const { + return std::lexicographical_compare( + s1.begin(), s1.end(), s2.begin(), s2.end(), + [](char c1, char c2) { return ::tolower(c1) < ::tolower(c2); }); + } +}; + +} // namespace detail + +enum class HttpVersion { v1_0 = 0, v1_1 }; + +typedef std::multimap Headers; + +typedef std::multimap Params; +typedef std::smatch Match; + +typedef std::function DataSink; + +typedef std::function Done; + +typedef std::function + ContentProvider; + +typedef std::function + ContentReceiver; + +typedef std::function Progress; + +struct Response; +typedef std::function ResponseHandler; + +struct MultipartFile { + std::string filename; + std::string content_type; + size_t offset = 0; + size_t length = 0; +}; +typedef std::multimap MultipartFiles; + +struct MultipartFormData { + std::string name; + std::string content; + std::string filename; + std::string content_type; +}; +typedef std::vector MultipartFormDataItems; + +typedef std::pair Range; +typedef std::vector Ranges; + +struct Request { + std::string method; + std::string path; + Headers headers; + std::string body; + std::string remote_addr; + + // for server + std::string version; + std::string target; + Params params; + MultipartFiles files; + Ranges ranges; + Match matches; + + // for client + size_t redirect_count = CPPHTTPLIB_REDIRECT_MAX_COUNT; + ResponseHandler response_handler; + ContentReceiver content_receiver; + Progress progress; + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + const SSL *ssl; +#endif + + bool has_header(const char *key) const; + std::string get_header_value(const char *key, size_t id = 0) const; + size_t get_header_value_count(const char *key) const; + void set_header(const char *key, const char *val); + void set_header(const char *key, const std::string &val); + + bool has_param(const char *key) const; + std::string get_param_value(const char *key, size_t id = 0) const; + size_t get_param_value_count(const char *key) const; + + bool has_file(const char *key) const; + MultipartFile get_file_value(const char *key) const; +}; + +struct Response { + std::string version; + int status; + Headers headers; + std::string body; + + bool has_header(const char *key) const; + std::string get_header_value(const char *key, size_t id = 0) const; + size_t get_header_value_count(const char *key) const; + void set_header(const char *key, const char *val); + void set_header(const char *key, const std::string &val); + + void set_redirect(const char *uri); + void set_content(const char *s, size_t n, const char *content_type); + void set_content(const std::string &s, const char *content_type); + + void set_content_provider( + size_t length, + std::function provider, + std::function resource_releaser = [] {}); + + void set_chunked_content_provider( + std::function provider, + std::function resource_releaser = [] {}); + + Response() : status(-1), content_provider_resource_length(0) {} + + ~Response() { + if (content_provider_resource_releaser) { + content_provider_resource_releaser(); + } + } + + size_t content_provider_resource_length; + ContentProvider content_provider; + std::function content_provider_resource_releaser; +}; + +class Stream { +public: + virtual ~Stream() {} + virtual int read(char *ptr, size_t size) = 0; + virtual int write(const char *ptr, size_t size1) = 0; + virtual int write(const char *ptr) = 0; + virtual int write(const std::string &s) = 0; + virtual std::string get_remote_addr() const = 0; + + template + int write_format(const char *fmt, const Args &... args); +}; + +class SocketStream : public Stream { +public: + SocketStream(socket_t sock); + virtual ~SocketStream(); + + virtual int read(char *ptr, size_t size); + virtual int write(const char *ptr, size_t size); + virtual int write(const char *ptr); + virtual int write(const std::string &s); + virtual std::string get_remote_addr() const; + +private: + socket_t sock_; +}; + +class BufferStream : public Stream { +public: + BufferStream() {} + virtual ~BufferStream() {} + + virtual int read(char *ptr, size_t size); + virtual int write(const char *ptr, size_t size); + virtual int write(const char *ptr); + virtual int write(const std::string &s); + virtual std::string get_remote_addr() const; + + const std::string &get_buffer() const; + +private: + std::string buffer; +}; + +template +class Server { +public: + typedef std::function Handler; + typedef std::function Logger; + + Server(std::function * ()> tq); + + virtual ~Server(); + + virtual bool is_valid() const; + + Server &Get(const char *pattern, Handler handler); + Server &Post(const char *pattern, Handler handler); + + Server &Put(const char *pattern, Handler handler); + Server &Patch(const char *pattern, Handler handler); + Server &Delete(const char *pattern, Handler handler); + Server &Options(const char *pattern, Handler handler); + + bool set_base_dir(const char *path); + void set_file_request_handler(Handler handler); + + void set_error_handler(Handler handler); + void set_logger(Logger logger); + + void set_keep_alive_max_count(size_t count); + void set_payload_max_length(size_t length); + + int bind_to_any_port(const char *host, int socket_flags = 0); + bool listen_after_bind(); + + bool listen(const char *host, int port, int socket_flags = 0); + + bool is_running() const; + void stop(); + + std::function *(void)> new_task_queue; + +protected: + bool process_request(W& worker, Stream &strm, bool last_connection, + bool &connection_close, + std::function setup_request); + + size_t keep_alive_max_count_; + size_t payload_max_length_; + +private: + typedef std::vector> Handlers; + + socket_t create_server_socket(const char *host, int port, + int socket_flags) const; + int bind_internal(const char *host, int port, int socket_flags); + bool listen_internal(); + + bool routing(W&, Request &req, Response &res); + bool handle_file_request(Request &req, Response &res); + bool dispatch_request(W&, Request &req, Response &res, Handlers &handlers); + + bool parse_request_line(const char *s, Request &req); + bool write_response(W&, Stream &strm, bool last_connection, const Request &req, + Response &res); + bool write_content_with_provider(Stream &strm, const Request &req, + Response &res, const std::string &boundary, + const std::string &content_type); + + virtual bool process_and_close_socket(W& worker, socket_t sock); + + std::atomic is_running_; + std::atomic svr_sock_; + std::string base_dir_; + Handler file_request_handler_; + Handlers get_handlers_; + Handlers post_handlers_; + Handlers put_handlers_; + Handlers patch_handlers_; + Handlers delete_handlers_; + Handlers options_handlers_; + Handler error_handler_; + Logger logger_; +}; + +class Client { +public: + Client(const char *host, int port = 80, time_t timeout_sec = 300); + + virtual ~Client(); + + virtual bool is_valid() const; + + std::shared_ptr Get(const char *path); + + std::shared_ptr Get(const char *path, const Headers &headers); + + std::shared_ptr Get(const char *path, Progress progress); + + std::shared_ptr Get(const char *path, const Headers &headers, + Progress progress); + + std::shared_ptr Get(const char *path, + ContentReceiver content_receiver); + + std::shared_ptr Get(const char *path, const Headers &headers, + ContentReceiver content_receiver); + + std::shared_ptr + Get(const char *path, ContentReceiver content_receiver, Progress progress); + + std::shared_ptr Get(const char *path, const Headers &headers, + ContentReceiver content_receiver, + Progress progress); + + std::shared_ptr Get(const char *path, const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver); + + std::shared_ptr Get(const char *path, const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress); + + std::shared_ptr Head(const char *path); + + std::shared_ptr Head(const char *path, const Headers &headers); + + std::shared_ptr Post(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Post(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Post(const char *path, const Params ¶ms); + + std::shared_ptr Post(const char *path, const Headers &headers, + const Params ¶ms); + + std::shared_ptr Post(const char *path, + const MultipartFormDataItems &items); + + std::shared_ptr Post(const char *path, const Headers &headers, + const MultipartFormDataItems &items); + + std::shared_ptr Put(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Put(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Patch(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Patch(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Delete(const char *path); + + std::shared_ptr Delete(const char *path, const std::string &body, + const char *content_type); + + std::shared_ptr Delete(const char *path, const Headers &headers); + + std::shared_ptr Delete(const char *path, const Headers &headers, + const std::string &body, + const char *content_type); + + std::shared_ptr Options(const char *path); + + std::shared_ptr Options(const char *path, const Headers &headers); + + bool send(const Request &req, Response &res); + + bool send(const std::vector &requests, + std::vector &responses); + + void set_keep_alive_max_count(size_t count); + + void follow_location(bool on); + +protected: + bool process_request(Stream &strm, const Request &req, Response &res, + bool last_connection, bool &connection_close); + + const std::string host_; + const int port_; + time_t timeout_sec_; + const std::string host_and_port_; + size_t keep_alive_max_count_; + size_t follow_location_; + +private: + socket_t create_client_socket() const; + bool read_response_line(Stream &strm, Response &res); + void write_request(Stream &strm, const Request &req, bool last_connection); + bool redirect(const Request &req, Response &res); + + virtual bool process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback); + + virtual bool is_ssl() const; +}; + +inline void Get(std::vector &requests, const char *path, + const Headers &headers) { + Request req; + req.method = "GET"; + req.path = path; + req.headers = headers; + requests.emplace_back(std::move(req)); +} + +inline void Get(std::vector &requests, const char *path) { + Get(requests, path, Headers()); +} + +inline void Post(std::vector &requests, const char *path, + const Headers &headers, const std::string &body, + const char *content_type) { + Request req; + req.method = "POST"; + req.path = path; + req.headers = headers; + req.headers.emplace("Content-Type", content_type); + req.body = body; + requests.emplace_back(std::move(req)); +} + +inline void Post(std::vector &requests, const char *path, + const std::string &body, const char *content_type) { + Post(requests, path, Headers(), body, content_type); +} + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +class SSLSocketStream : public Stream { +public: + SSLSocketStream(socket_t sock, SSL *ssl); + virtual ~SSLSocketStream(); + + virtual int read(char *ptr, size_t size); + virtual int write(const char *ptr, size_t size); + virtual int write(const char *ptr); + virtual int write(const std::string &s); + virtual std::string get_remote_addr() const; + +private: + socket_t sock_; + SSL *ssl_; +}; + +class SSLServer : public Server { +public: + SSLServer(const char *cert_path, const char *private_key_path, + const char *client_ca_cert_file_path = nullptr, + const char *client_ca_cert_dir_path = nullptr); + + virtual ~SSLServer(); + + virtual bool is_valid() const; + +private: + virtual bool process_and_close_socket(socket_t sock); + + SSL_CTX *ctx_; + std::mutex ctx_mutex_; +}; + +class SSLClient : public Client { +public: + SSLClient(const char *host, int port = 443, time_t timeout_sec = 300, + const char *client_cert_path = nullptr, + const char *client_key_path = nullptr); + + virtual ~SSLClient(); + + virtual bool is_valid() const; + + void set_ca_cert_path(const char *ca_ceert_file_path, + const char *ca_cert_dir_path = nullptr); + void enable_server_certificate_verification(bool enabled); + + long get_openssl_verify_result() const; + + SSL_CTX* ssl_context() const noexcept; + +private: + virtual bool process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback); + virtual bool is_ssl() const; + + bool verify_host(X509 *server_cert) const; + bool verify_host_with_subject_alt_name(X509 *server_cert) const; + bool verify_host_with_common_name(X509 *server_cert) const; + bool check_host_name(const char *pattern, size_t pattern_len) const; + + SSL_CTX *ctx_; + std::mutex ctx_mutex_; + std::vector host_components_; + std::string ca_cert_file_path_; + std::string ca_cert_dir_path_; + bool server_certificate_verification_ = false; + long verify_result_ = 0; +}; +#endif + +/* + * Implementation + */ +namespace detail { + +inline bool is_hex(char c, int &v) { + if (0x20 <= c && isdigit(c)) { + v = c - '0'; + return true; + } else if ('A' <= c && c <= 'F') { + v = c - 'A' + 10; + return true; + } else if ('a' <= c && c <= 'f') { + v = c - 'a' + 10; + return true; + } + return false; +} + +inline bool from_hex_to_i(const std::string &s, size_t i, size_t cnt, + int &val) { + if (i >= s.size()) { return false; } + + val = 0; + for (; cnt; i++, cnt--) { + if (!s[i]) { return false; } + int v = 0; + if (is_hex(s[i], v)) { + val = val * 16 + v; + } else { + return false; + } + } + return true; +} + +inline std::string from_i_to_hex(size_t n) { + const char *charset = "0123456789abcdef"; + std::string ret; + do { + ret = charset[n & 15] + ret; + n >>= 4; + } while (n > 0); + return ret; +} + +inline size_t to_utf8(int code, char *buff) { + if (code < 0x0080) { + buff[0] = (code & 0x7F); + return 1; + } else if (code < 0x0800) { + buff[0] = (0xC0 | ((code >> 6) & 0x1F)); + buff[1] = (0x80 | (code & 0x3F)); + return 2; + } else if (code < 0xD800) { + buff[0] = (0xE0 | ((code >> 12) & 0xF)); + buff[1] = (0x80 | ((code >> 6) & 0x3F)); + buff[2] = (0x80 | (code & 0x3F)); + return 3; + } else if (code < 0xE000) { // D800 - DFFF is invalid... + return 0; + } else if (code < 0x10000) { + buff[0] = (0xE0 | ((code >> 12) & 0xF)); + buff[1] = (0x80 | ((code >> 6) & 0x3F)); + buff[2] = (0x80 | (code & 0x3F)); + return 3; + } else if (code < 0x110000) { + buff[0] = (0xF0 | ((code >> 18) & 0x7)); + buff[1] = (0x80 | ((code >> 12) & 0x3F)); + buff[2] = (0x80 | ((code >> 6) & 0x3F)); + buff[3] = (0x80 | (code & 0x3F)); + return 4; + } + + // NOTREACHED + return 0; +} + +// NOTE: This code came up with the following stackoverflow post: +// https://stackoverflow.com/questions/180947/base64-decode-snippet-in-c +inline std::string base64_encode(const std::string &in) { + static const auto lookup = + "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; + + std::string out; + out.reserve(in.size()); + + int val = 0; + int valb = -6; + + for (uint8_t c : in) { + val = (val << 8) + c; + valb += 8; + while (valb >= 0) { + out.push_back(lookup[(val >> valb) & 0x3F]); + valb -= 6; + } + } + + if (valb > -6) { out.push_back(lookup[((val << 8) >> (valb + 8)) & 0x3F]); } + + while (out.size() % 4) { + out.push_back('='); + } + + return out; +} + +inline bool is_file(const std::string &path) { + struct stat st; + return stat(path.c_str(), &st) >= 0 && S_ISREG(st.st_mode); +} + +inline bool is_dir(const std::string &path) { + struct stat st; + return stat(path.c_str(), &st) >= 0 && S_ISDIR(st.st_mode); +} + +inline bool is_valid_path(const std::string &path) { + size_t level = 0; + size_t i = 0; + + // Skip slash + while (i < path.size() && path[i] == '/') { + i++; + } + + while (i < path.size()) { + // Read component + auto beg = i; + while (i < path.size() && path[i] != '/') { + i++; + } + + auto len = i - beg; + assert(len > 0); + + if (!path.compare(beg, len, ".")) { + ; + } else if (!path.compare(beg, len, "..")) { + if (level == 0) { return false; } + level--; + } else { + level++; + } + + // Skip slash + while (i < path.size() && path[i] == '/') { + i++; + } + } + + return true; +} + +inline void read_file(const std::string &path, std::string &out) { + std::ifstream fs(path, std::ios_base::binary); + fs.seekg(0, std::ios_base::end); + auto size = fs.tellg(); + fs.seekg(0); + out.resize(static_cast(size)); + fs.read(&out[0], size); +} + +inline std::string file_extension(const std::string &path) { + std::smatch m; + auto pat = std::regex("\\.([a-zA-Z0-9]+)$"); + if (std::regex_search(path, m, pat)) { return m[1].str(); } + return std::string(); +} + +template void split(const char *b, const char *e, char d, Fn fn) { + int i = 0; + int beg = 0; + + while (e ? (b + i != e) : (b[i] != '\0')) { + if (b[i] == d) { + fn(&b[beg], &b[i]); + beg = i + 1; + } + i++; + } + + if (i) { fn(&b[beg], &b[i]); } +} + +// NOTE: until the read size reaches `fixed_buffer_size`, use `fixed_buffer` +// to store data. The call can set memory on stack for performance. +class stream_line_reader { +public: + stream_line_reader(Stream &strm, char *fixed_buffer, size_t fixed_buffer_size) + : strm_(strm), fixed_buffer_(fixed_buffer), + fixed_buffer_size_(fixed_buffer_size) {} + + const char *ptr() const { + if (glowable_buffer_.empty()) { + return fixed_buffer_; + } else { + return glowable_buffer_.data(); + } + } + + size_t size() const { + if (glowable_buffer_.empty()) { + return fixed_buffer_used_size_; + } else { + return glowable_buffer_.size(); + } + } + + bool getline() { + fixed_buffer_used_size_ = 0; + glowable_buffer_.clear(); + + for (size_t i = 0;; i++) { + char byte; + auto n = strm_.read(&byte, 1); + + if (n < 0) { + return false; + } else if (n == 0) { + if (i == 0) { + return false; + } else { + break; + } + } + + append(byte); + + if (byte == '\n') { break; } + } + + return true; + } + +private: + void append(char c) { + if (fixed_buffer_used_size_ < fixed_buffer_size_ - 1) { + fixed_buffer_[fixed_buffer_used_size_++] = c; + fixed_buffer_[fixed_buffer_used_size_] = '\0'; + } else { + if (glowable_buffer_.empty()) { + assert(fixed_buffer_[fixed_buffer_used_size_] == '\0'); + glowable_buffer_.assign(fixed_buffer_, fixed_buffer_used_size_); + } + glowable_buffer_ += c; + } + } + + Stream &strm_; + char *fixed_buffer_; + const size_t fixed_buffer_size_; + size_t fixed_buffer_used_size_; + std::string glowable_buffer_; +}; + +inline int close_socket(socket_t sock) { +#ifdef _WIN32 + return closesocket(sock); +#else + return close(sock); +#endif +} + +inline int select_read(socket_t sock, time_t sec, time_t usec) { +#ifdef CPPHTTPLIB_USE_POLL + struct pollfd pfd_read; + pfd_read.fd = sock; + pfd_read.events = POLLIN; + + auto timeout = static_cast(sec * 1000 + usec / 1000); + + return poll(&pfd_read, 1, timeout); +#else + fd_set fds; + FD_ZERO(&fds); + FD_SET(sock, &fds); + + timeval tv; + tv.tv_sec = static_cast(sec); + tv.tv_usec = static_cast(usec); + + return select(static_cast(sock + 1), &fds, nullptr, nullptr, &tv); +#endif +} + +inline bool wait_until_socket_is_ready(socket_t sock, time_t sec, time_t usec) { +#ifdef CPPHTTPLIB_USE_POLL + struct pollfd pfd_read; + pfd_read.fd = sock; + pfd_read.events = POLLIN | POLLOUT; + + auto timeout = static_cast(sec * 1000 + usec / 1000); + + if (poll(&pfd_read, 1, timeout) > 0 && + pfd_read.revents & (POLLIN | POLLOUT)) { + int error = 0; + socklen_t len = sizeof(error); + return getsockopt(sock, SOL_SOCKET, SO_ERROR, reinterpret_cast(&error), &len) >= 0 && + !error; + } + return false; +#else + fd_set fdsr; + FD_ZERO(&fdsr); + FD_SET(sock, &fdsr); + + auto fdsw = fdsr; + auto fdse = fdsr; + + timeval tv; + tv.tv_sec = static_cast(sec); + tv.tv_usec = static_cast(usec); + + if (select(static_cast(sock + 1), &fdsr, &fdsw, &fdse, &tv) > 0 && + (FD_ISSET(sock, &fdsr) || FD_ISSET(sock, &fdsw))) { + int error = 0; + socklen_t len = sizeof(error); + return getsockopt(sock, SOL_SOCKET, SO_ERROR, (char *)&error, &len) >= 0 && + !error; + } + return false; +#endif +} + +template +inline bool process_and_close_socket(bool is_client_request, socket_t sock, + size_t keep_alive_max_count, T callback) { + assert(keep_alive_max_count > 0); + + bool ret = false; + + if (keep_alive_max_count > 1) { + auto count = keep_alive_max_count; + while (count > 0 && + (is_client_request || + detail::select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { + SocketStream strm(sock); + auto last_connection = count == 1; + auto connection_close = false; + + ret = callback(strm, last_connection, connection_close); + if (!ret || connection_close) { break; } + + count--; + } + } else { + SocketStream strm(sock); + auto dummy_connection_close = false; + ret = callback(strm, true, dummy_connection_close); + } + + close_socket(sock); + return ret; +} + +inline int shutdown_socket(socket_t sock) { +#ifdef _WIN32 + return shutdown(sock, SD_BOTH); +#else + return shutdown(sock, SHUT_RDWR); +#endif +} + +template +socket_t create_socket(const char *host, int port, Fn fn, + int socket_flags = 0) { +#ifdef _WIN32 +#define SO_SYNCHRONOUS_NONALERT 0x20 +#define SO_OPENTYPE 0x7008 + + int opt = SO_SYNCHRONOUS_NONALERT; + setsockopt(INVALID_SOCKET, SOL_SOCKET, SO_OPENTYPE, (char *)&opt, + sizeof(opt)); +#endif + + // Get address info + struct addrinfo hints; + struct addrinfo *result; + + memset(&hints, 0, sizeof(struct addrinfo)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + hints.ai_flags = socket_flags; + hints.ai_protocol = 0; + + auto service = std::to_string(port); + + if (getaddrinfo(host, service.c_str(), &hints, &result)) { + return INVALID_SOCKET; + } + + for (auto rp = result; rp; rp = rp->ai_next) { + // Create a socket +#ifdef _WIN32 + auto sock = WSASocketW(rp->ai_family, rp->ai_socktype, rp->ai_protocol, + nullptr, 0, WSA_FLAG_NO_HANDLE_INHERIT); +#else + auto sock = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); +#endif + if (sock == INVALID_SOCKET) { continue; } + +#ifndef _WIN32 + if (fcntl(sock, F_SETFD, FD_CLOEXEC) == -1) { continue; } +#endif + + // Make 'reuse address' option available + int yes = 1; + setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, reinterpret_cast(&yes), sizeof(yes)); +#ifdef SO_REUSEPORT + setsockopt(sock, SOL_SOCKET, SO_REUSEPORT, reinterpret_cast(&yes), sizeof(yes)); +#endif + + // bind or connect + if (fn(sock, *rp)) { + freeaddrinfo(result); + return sock; + } + + close_socket(sock); + } + + freeaddrinfo(result); + return INVALID_SOCKET; +} + +inline void set_nonblocking(socket_t sock, bool nonblocking) { +#ifdef _WIN32 + auto flags = nonblocking ? 1UL : 0UL; + ioctlsocket(sock, FIONBIO, &flags); +#else + auto flags = fcntl(sock, F_GETFL, 0); + fcntl(sock, F_SETFL, + nonblocking ? (flags | O_NONBLOCK) : (flags & (~O_NONBLOCK))); +#endif +} + +inline bool is_connection_error() { +#ifdef _WIN32 + return WSAGetLastError() != WSAEWOULDBLOCK; +#else + return errno != EINPROGRESS; +#endif +} + +inline std::string get_remote_addr(socket_t sock) { + struct sockaddr_storage addr; + socklen_t len = sizeof(addr); + + if (!getpeername(sock, reinterpret_cast(&addr), &len)) { + char ipstr[NI_MAXHOST]; + + if (!getnameinfo(reinterpret_cast(&addr), len, ipstr, sizeof(ipstr), + nullptr, 0, NI_NUMERICHOST)) { + return ipstr; + } + } + + return std::string(); +} + +inline const char *find_content_type(const std::string &path) { + auto ext = file_extension(path); + if (ext == "txt") { + return "text/plain"; + } else if (ext == "html") { + return "text/html"; + } else if (ext == "css") { + return "text/css"; + } else if (ext == "jpeg" || ext == "jpg") { + return "image/jpg"; + } else if (ext == "png") { + return "image/png"; + } else if (ext == "gif") { + return "image/gif"; + } else if (ext == "svg") { + return "image/svg+xml"; + } else if (ext == "ico") { + return "image/x-icon"; + } else if (ext == "json") { + return "application/json"; + } else if (ext == "pdf") { + return "application/pdf"; + } else if (ext == "js") { + return "application/javascript"; + } else if (ext == "xml") { + return "application/xml"; + } else if (ext == "xhtml") { + return "application/xhtml+xml"; + } + return nullptr; +} + +inline const char *status_message(int status) { + switch (status) { + case 200: return "OK"; + case 201: return "Created"; + case 204: return "No Content"; + case 206: return "Partial Content"; + case 301: return "Moved Permanently"; + case 302: return "Found"; + case 303: return "See Other"; + case 304: return "Not Modified"; + case 400: return "Bad Request"; + case 401: return "Unauthorized"; + case 403: return "Forbidden"; + case 404: return "Not Found"; + case 409: return "Conflict"; + case 413: return "Payload Too Large"; + case 414: return "Request-URI Too Long"; + case 415: return "Unsupported Media Type"; + case 416: return "Range Not Satisfiable"; + case 422: return "Unprocessable Entity"; + case 423: return "Locked"; + + default: + case 500: return "Internal Server Error"; + } +} + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT +inline bool can_compress(const std::string &content_type) { + return !content_type.find("text/") || content_type == "image/svg+xml" || + content_type == "application/javascript" || + content_type == "application/json" || + content_type == "application/xml" || + content_type == "application/xhtml+xml"; +} + +inline bool compress(std::string &content) { + z_stream strm; + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + + auto ret = deflateInit2(&strm, Z_DEFAULT_COMPRESSION, Z_DEFLATED, 31, 8, + Z_DEFAULT_STRATEGY); + if (ret != Z_OK) { return false; } + + strm.avail_in = content.size(); + strm.next_in = const_cast(reinterpret_cast(content.data())); + + std::string compressed; + + const auto bufsiz = 16384; + char buff[bufsiz]; + do { + strm.avail_out = bufsiz; + strm.next_out = reinterpret_cast(buff); + ret = deflate(&strm, Z_FINISH); + assert(ret != Z_STREAM_ERROR); + compressed.append(buff, bufsiz - strm.avail_out); + } while (strm.avail_out == 0); + + assert(ret == Z_STREAM_END); + assert(strm.avail_in == 0); + + content.swap(compressed); + + deflateEnd(&strm); + return true; +} + +class decompressor { +public: + decompressor() { + strm.zalloc = Z_NULL; + strm.zfree = Z_NULL; + strm.opaque = Z_NULL; + + // 15 is the value of wbits, which should be at the maximum possible value + // to ensure that any gzip stream can be decoded. The offset of 16 specifies + // that the stream to decompress will be formatted with a gzip wrapper. + is_valid_ = inflateInit2(&strm, 16 + 15) == Z_OK; + } + + ~decompressor() { inflateEnd(&strm); } + + bool is_valid() const { return is_valid_; } + + template + bool decompress(const char *data, size_t data_length, T callback) { + int ret = Z_OK; + + strm.avail_in = data_length; + strm.next_in = const_cast(reinterpret_cast(data)); + + const auto bufsiz = 16384; + char buff[bufsiz]; + do { + strm.avail_out = bufsiz; + strm.next_out = reinterpret_cast(buff); + + ret = inflate(&strm, Z_NO_FLUSH); + assert(ret != Z_STREAM_ERROR); + switch (ret) { + case Z_NEED_DICT: + case Z_DATA_ERROR: + case Z_MEM_ERROR: inflateEnd(&strm); return false; + } + + if (!callback(buff, bufsiz - strm.avail_out)) { return false; } + } while (strm.avail_out == 0); + + return ret == Z_STREAM_END; + } + +private: + bool is_valid_; + z_stream strm; +}; +#endif + +inline bool has_header(const Headers &headers, const char *key) { + return headers.find(key) != headers.end(); +} + +inline const char *get_header_value(const Headers &headers, const char *key, + size_t id = 0, const char *def = nullptr) { + auto it = headers.find(key); + std::advance(it, id); + if (it != headers.end()) { return it->second.c_str(); } + return def; +} + +inline uint64_t get_header_value_uint64(const Headers &headers, const char *key, + int def = 0) { + auto it = headers.find(key); + if (it != headers.end()) { + return std::strtoull(it->second.data(), nullptr, 10); + } + return def; +} + +inline bool read_headers(Stream &strm, Headers &headers) { + static std::regex re(R"((.+?):\s*(.+?)\s*\r\n)"); + + const auto bufsiz = 2048; + char buf[bufsiz]; + + stream_line_reader reader(strm, buf, bufsiz); + + for (;;) { + if (!reader.getline()) { return false; } + if (!strcmp(reader.ptr(), "\r\n")) { break; } + std::cmatch m; + if (std::regex_match(reader.ptr(), m, re)) { + auto key = std::string(m[1]); + auto val = std::string(m[2]); + headers.emplace(key, val); + } + } + + return true; +} + +typedef std::function + ContentReceiverCore; + +inline bool read_content_with_length(Stream &strm, uint64_t len, + Progress progress, + ContentReceiverCore out) { + char buf[CPPHTTPLIB_RECV_BUFSIZ]; + + uint64_t r = 0; + while (r < len) { + auto read_len = static_cast(len - r); + auto n = strm.read(buf, std::min(read_len, CPPHTTPLIB_RECV_BUFSIZ)); + if (n <= 0) { return false; } + + if (!out(buf, n)) { return false; } + + r += n; + + if (progress) { + if (!progress(r, len)) { return false; } + } + } + + return true; +} + +inline void skip_content_with_length(Stream &strm, uint64_t len) { + char buf[CPPHTTPLIB_RECV_BUFSIZ]; + uint64_t r = 0; + while (r < len) { + auto read_len = static_cast(len - r); + auto n = strm.read(buf, std::min(read_len, CPPHTTPLIB_RECV_BUFSIZ)); + if (n <= 0) { return; } + r += n; + } +} + +inline bool read_content_without_length(Stream &strm, ContentReceiverCore out) { + char buf[CPPHTTPLIB_RECV_BUFSIZ]; + for (;;) { + auto n = strm.read(buf, CPPHTTPLIB_RECV_BUFSIZ); + if (n < 0) { + return false; + } else if (n == 0) { + return true; + } + if (!out(buf, n)) { return false; } + } + + return true; +} + +inline bool read_content_chunked(Stream &strm, ContentReceiverCore out) { + const auto bufsiz = 16; + char buf[bufsiz]; + + stream_line_reader reader(strm, buf, bufsiz); + + if (!reader.getline()) { return false; } + + auto chunk_len = std::stoi(reader.ptr(), 0, 16); + + while (chunk_len > 0) { + if (!read_content_with_length(strm, chunk_len, nullptr, out)) { + return false; + } + + if (!reader.getline()) { return false; } + + if (strcmp(reader.ptr(), "\r\n")) { break; } + + if (!reader.getline()) { return false; } + + chunk_len = std::stoi(reader.ptr(), 0, 16); + } + + if (chunk_len == 0) { + // Reader terminator after chunks + if (!reader.getline() || strcmp(reader.ptr(), "\r\n")) return false; + } + + return true; +} + +inline bool is_chunked_transfer_encoding(const Headers &headers) { + return !strcasecmp(get_header_value(headers, "Transfer-Encoding", 0, ""), + "chunked"); +} + +template +bool read_content(Stream &strm, T &x, size_t payload_max_length, int &status, + Progress progress, ContentReceiverCore receiver) { + + ContentReceiverCore out = [&](const char *buf, size_t n) { + return receiver(buf, n); + }; + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + detail::decompressor decompressor; + + if (!decompressor.is_valid()) { + status = 500; + return false; + } + + if (x.get_header_value("Content-Encoding") == "gzip") { + out = [&](const char *buf, size_t n) { + return decompressor.decompress( + buf, n, [&](const char *buf, size_t n) { return receiver(buf, n); }); + }; + } +#else + if (x.get_header_value("Content-Encoding") == "gzip") { + status = 415; + return false; + } +#endif + + auto ret = true; + auto exceed_payload_max_length = false; + + if (is_chunked_transfer_encoding(x.headers)) { + ret = read_content_chunked(strm, out); + } else if (!has_header(x.headers, "Content-Length")) { + ret = read_content_without_length(strm, out); + } else { + auto len = get_header_value_uint64(x.headers, "Content-Length", 0); + if (len > payload_max_length) { + exceed_payload_max_length = true; + skip_content_with_length(strm, len); + ret = false; + } else if (len > 0) { + ret = read_content_with_length(strm, len, progress, out); + } + } + + if (!ret) { status = exceed_payload_max_length ? 413 : 400; } + + return ret; +} + +template +inline int write_headers(Stream &strm, const T &info, const Headers &headers) { + auto write_len = 0; + for (const auto &x : info.headers) { + auto len = + strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); + if (len < 0) { return len; } + write_len += len; + } + for (const auto &x : headers) { + auto len = + strm.write_format("%s: %s\r\n", x.first.c_str(), x.second.c_str()); + if (len < 0) { return len; } + write_len += len; + } + auto len = strm.write("\r\n"); + if (len < 0) { return len; } + write_len += len; + return write_len; +} + +inline ssize_t write_content(Stream &strm, ContentProvider content_provider, + size_t offset, size_t length) { + size_t begin_offset = offset; + size_t end_offset = offset + length; + while (offset < end_offset) { + ssize_t written_length = 0; + content_provider( + offset, end_offset - offset, + [&](const char *d, size_t l) { + offset += l; + written_length = strm.write(d, l); + }, + [&](void) { written_length = -1; }); + if (written_length < 0) { return written_length; } + } + return static_cast(offset - begin_offset); +} + +inline ssize_t write_content_chunked(Stream &strm, + ContentProvider content_provider) { + size_t offset = 0; + auto data_available = true; + ssize_t total_written_length = 0; + while (data_available) { + ssize_t written_length = 0; + content_provider( + offset, 0, + [&](const char *d, size_t l) { + data_available = l > 0; + offset += l; + + // Emit chunked response header and footer for each chunk + auto chunk = from_i_to_hex(l) + "\r\n" + std::string(d, l) + "\r\n"; + written_length = strm.write(chunk); + }, + [&](void) { + data_available = false; + written_length = strm.write("0\r\n\r\n"); + }); + + if (written_length < 0) { return written_length; } + total_written_length += written_length; + } + return total_written_length; +} + +template +inline bool redirect(T &cli, const Request &req, Response &res, + const std::string &path) { + Request new_req; + new_req.method = req.method; + new_req.path = path; + new_req.headers = req.headers; + new_req.body = req.body; + new_req.redirect_count = req.redirect_count - 1; + new_req.response_handler = req.response_handler; + new_req.content_receiver = req.content_receiver; + new_req.progress = req.progress; + + Response new_res; + auto ret = cli.send(new_req, new_res); + if (ret) { res = new_res; } + return ret; +} + +inline std::string encode_url(const std::string &s) { + std::string result; + + for (auto i = 0; s[i]; i++) { + switch (s[i]) { + case ' ': result += "%20"; break; + case '+': result += "%2B"; break; + case '\r': result += "%0D"; break; + case '\n': result += "%0A"; break; + case '\'': result += "%27"; break; + case ',': result += "%2C"; break; + case ':': result += "%3A"; break; + case ';': result += "%3B"; break; + default: + auto c = static_cast(s[i]); + if (c >= 0x80) { + result += '%'; + char hex[4]; + size_t len = snprintf(hex, sizeof(hex) - 1, "%02X", c); + assert(len == 2); + result.append(hex, len); + } else { + result += s[i]; + } + break; + } + } + + return result; +} + +inline std::string decode_url(const std::string &s) { + std::string result; + + for (size_t i = 0; i < s.size(); i++) { + if (s[i] == '%' && i + 1 < s.size()) { + if (s[i + 1] == 'u') { + int val = 0; + if (from_hex_to_i(s, i + 2, 4, val)) { + // 4 digits Unicode codes + char buff[4]; + size_t len = to_utf8(val, buff); + if (len > 0) { result.append(buff, len); } + i += 5; // 'u0000' + } else { + result += s[i]; + } + } else { + int val = 0; + if (from_hex_to_i(s, i + 1, 2, val)) { + // 2 digits hex codes + result += val; + i += 2; // '00' + } else { + result += s[i]; + } + } + } else if (s[i] == '+') { + result += ' '; + } else { + result += s[i]; + } + } + + return result; +} + +inline void parse_query_text(const std::string &s, Params ¶ms) { + split(&s[0], &s[s.size()], '&', [&](const char *b, const char *e) { + std::string key; + std::string val; + split(b, e, '=', [&](const char *b, const char *e) { + if (key.empty()) { + key.assign(b, e); + } else { + val.assign(b, e); + } + }); + params.emplace(key, decode_url(val)); + }); +} + +inline bool parse_multipart_boundary(const std::string &content_type, + std::string &boundary) { + auto pos = content_type.find("boundary="); + if (pos == std::string::npos) { return false; } + + boundary = content_type.substr(pos + 9); + return true; +} + +inline bool parse_multipart_formdata(const std::string &boundary, + const std::string &body, + MultipartFiles &files) { + static std::string dash = "--"; + static std::string crlf = "\r\n"; + + static std::regex re_content_type("Content-Type: (.*?)", + std::regex_constants::icase); + + static std::regex re_content_disposition( + "Content-Disposition: form-data; name=\"(.*?)\"(?:; filename=\"(.*?)\")?", + std::regex_constants::icase); + + auto dash_boundary = dash + boundary; + + auto pos = body.find(dash_boundary); + if (pos != 0) { return false; } + + pos += dash_boundary.size(); + + auto next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } + + pos = next_pos + crlf.size(); + + while (pos < body.size()) { + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } + + std::string name; + MultipartFile file; + + auto header = body.substr(pos, (next_pos - pos)); + + while (pos != next_pos) { + std::smatch m; + if (std::regex_match(header, m, re_content_type)) { + file.content_type = m[1]; + } else if (std::regex_match(header, m, re_content_disposition)) { + name = m[1]; + file.filename = m[2]; + } + + pos = next_pos + crlf.size(); + + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } + + header = body.substr(pos, (next_pos - pos)); + } + + pos = next_pos + crlf.size(); + + next_pos = body.find(crlf + dash_boundary, pos); + + if (next_pos == std::string::npos) { return false; } + + file.offset = pos; + file.length = next_pos - pos; + + pos = next_pos + crlf.size() + dash_boundary.size(); + + next_pos = body.find(crlf, pos); + if (next_pos == std::string::npos) { return false; } + + files.emplace(name, file); + + pos = next_pos + crlf.size(); + } + + return true; +} + +inline bool parse_range_header(const std::string &s, Ranges &ranges) { + try { + static auto re = std::regex(R"(bytes=(\d*-\d*(?:,\s*\d*-\d*)*))"); + std::smatch m; + if (std::regex_match(s, m, re)) { + auto pos = m.position(1); + auto len = m.length(1); + detail::split(&s[pos], &s[pos + len], ',', + [&](const char *b, const char *e) { + static auto re = std::regex(R"(\s*(\d*)-(\d*))"); + std::cmatch m; + if (std::regex_match(b, e, m, re)) { + ssize_t first = -1; + if (!m.str(1).empty()) { + first = static_cast(std::stoll(m.str(1))); + } + + ssize_t last = -1; + if (!m.str(2).empty()) { + last = static_cast(std::stoll(m.str(2))); + } + + if (first != -1 && last != -1 && first > last) { + throw std::runtime_error("invalid range error"); + } + ranges.emplace_back(std::make_pair(first, last)); + } + }); + return true; + } + return false; + } catch (...) { return false; } +} + +inline std::string to_lower(const char *beg, const char *end) { + std::string out; + auto it = beg; + while (it != end) { + out += ::tolower(*it); + it++; + } + return out; +} + +inline std::string make_multipart_data_boundary() { + static const char data[] = + "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; + + std::random_device seed_gen; + std::mt19937 engine(seed_gen()); + + std::string result = "--cpp-httplib-multipart-data-"; + + for (auto i = 0; i < 16; i++) { + result += data[engine() % (sizeof(data) - 1)]; + } + + return result; +} + +inline std::pair +get_range_offset_and_length(const Request &req, size_t content_length, + size_t index) { + auto r = req.ranges[index]; + + if (r.first == -1 && r.second == -1) { + return std::make_pair(0, content_length); + } + + if (r.first == -1) { + r.first = content_length - r.second; + r.second = content_length - 1; + } + + if (r.second == -1) { r.second = content_length - 1; } + + return std::make_pair(r.first, r.second - r.first + 1); +} + +inline std::string make_content_range_header_field(size_t offset, size_t length, + size_t content_length) { + std::string field = "bytes "; + field += std::to_string(offset); + field += "-"; + field += std::to_string(offset + length - 1); + field += "/"; + field += std::to_string(content_length); + return field; +} + +template +bool process_multipart_ranges_data(const Request &req, Response &res, + const std::string &boundary, + const std::string &content_type, + SToken stoken, CToken ctoken, + Content content) { + for (size_t i = 0; i < req.ranges.size(); i++) { + ctoken("--"); + stoken(boundary); + ctoken("\r\n"); + if (!content_type.empty()) { + ctoken("Content-Type: "); + stoken(content_type); + ctoken("\r\n"); + } + + auto offsets = detail::get_range_offset_and_length(req, res.body.size(), i); + auto offset = offsets.first; + auto length = offsets.second; + + ctoken("Content-Range: "); + stoken(make_content_range_header_field(offset, length, res.body.size())); + ctoken("\r\n"); + ctoken("\r\n"); + if (!content(offset, length)) { return false; } + ctoken("\r\n"); + } + + ctoken("--"); + stoken(boundary); + ctoken("--\r\n"); + + return true; +} + +inline std::string make_multipart_ranges_data(const Request &req, Response &res, + const std::string &boundary, + const std::string &content_type) { + std::string data; + + process_multipart_ranges_data( + req, res, boundary, content_type, + [&](const std::string &token) { data += token; }, + [&](const char *token) { data += token; }, + [&](size_t offset, size_t length) { + data += res.body.substr(offset, length); + return true; + }); + + return data; +} + +inline size_t +get_multipart_ranges_data_length(const Request &req, Response &res, + const std::string &boundary, + const std::string &content_type) { + size_t data_length = 0; + + process_multipart_ranges_data( + req, res, boundary, content_type, + [&](const std::string &token) { data_length += token.size(); }, + [&](const char *token) { data_length += strlen(token); }, + [&](size_t /*offset*/, size_t length) { + data_length += length; + return true; + }); + + return data_length; +} + +inline bool write_multipart_ranges_data(Stream &strm, const Request &req, + Response &res, + const std::string &boundary, + const std::string &content_type) { + return process_multipart_ranges_data( + req, res, boundary, content_type, + [&](const std::string &token) { strm.write(token); }, + [&](const char *token) { strm.write(token); }, + [&](size_t offset, size_t length) { + return detail::write_content(strm, res.content_provider, offset, + length) >= 0; + }); +} + +inline std::pair +get_range_offset_and_length(const Request &req, const Response &res, + size_t index) { + auto r = req.ranges[index]; + + if (r.second == -1) { r.second = res.content_provider_resource_length - 1; } + + return std::make_pair(r.first, r.second - r.first + 1); +} + +#ifdef _WIN32 +class WSInit { +public: + WSInit() { + WSADATA wsaData; + WSAStartup(0x0002, &wsaData); + } + + ~WSInit() { WSACleanup(); } +}; + +static WSInit wsinit_; +#endif + +} // namespace detail + +// Header utilities +inline std::pair make_range_header(Ranges ranges) { + std::string field = "bytes="; + auto i = 0; + for (auto r : ranges) { + if (i != 0) { field += ", "; } + if (r.first != -1) { field += std::to_string(r.first); } + field += '-'; + if (r.second != -1) { field += std::to_string(r.second); } + i++; + } + return std::make_pair("Range", field); +} + +inline std::pair +make_basic_authentication_header(const std::string &username, + const std::string &password) { + auto field = "Basic " + detail::base64_encode(username + ":" + password); + return std::make_pair("Authorization", field); +} + +// Request implementation +inline bool Request::has_header(const char *key) const { + return detail::has_header(headers, key); +} + +inline std::string Request::get_header_value(const char *key, size_t id) const { + return detail::get_header_value(headers, key, id, ""); +} + +inline size_t Request::get_header_value_count(const char *key) const { + auto r = headers.equal_range(key); + return std::distance(r.first, r.second); +} + +inline void Request::set_header(const char *key, const char *val) { + headers.emplace(key, val); +} + +inline void Request::set_header(const char *key, const std::string &val) { + headers.emplace(key, val); +} + +inline bool Request::has_param(const char *key) const { + return params.find(key) != params.end(); +} + +inline std::string Request::get_param_value(const char *key, size_t id) const { + auto it = params.find(key); + std::advance(it, id); + if (it != params.end()) { return it->second; } + return std::string(); +} + +inline size_t Request::get_param_value_count(const char *key) const { + auto r = params.equal_range(key); + return std::distance(r.first, r.second); +} + +inline bool Request::has_file(const char *key) const { + return files.find(key) != files.end(); +} + +inline MultipartFile Request::get_file_value(const char *key) const { + auto it = files.find(key); + if (it != files.end()) { return it->second; } + return MultipartFile(); +} + +// Response implementation +inline bool Response::has_header(const char *key) const { + return headers.find(key) != headers.end(); +} + +inline std::string Response::get_header_value(const char *key, + size_t id) const { + return detail::get_header_value(headers, key, id, ""); +} + +inline size_t Response::get_header_value_count(const char *key) const { + auto r = headers.equal_range(key); + return std::distance(r.first, r.second); +} + +inline void Response::set_header(const char *key, const char *val) { + headers.emplace(key, val); +} + +inline void Response::set_header(const char *key, const std::string &val) { + headers.emplace(key, val); +} + +inline void Response::set_redirect(const char *url) { + set_header("Location", url); + status = 302; +} + +inline void Response::set_content(const char *s, size_t n, + const char *content_type) { + body.assign(s, n); + set_header("Content-Type", content_type); +} + +inline void Response::set_content(const std::string &s, + const char *content_type) { + body = s; + set_header("Content-Type", content_type); +} + +inline void Response::set_content_provider( + size_t length, + std::function provider, + std::function resource_releaser) { + assert(length > 0); + content_provider_resource_length = length; + content_provider = [provider](size_t offset, size_t length, DataSink sink, + Done) { provider(offset, length, sink); }; + content_provider_resource_releaser = resource_releaser; +} + +inline void Response::set_chunked_content_provider( + std::function provider, + std::function resource_releaser) { + content_provider_resource_length = 0; + content_provider = [provider](size_t offset, size_t, DataSink sink, + Done done) { provider(offset, sink, done); }; + content_provider_resource_releaser = resource_releaser; +} + +// Rstream implementation +template +inline int Stream::write_format(const char *fmt, const Args &... args) { + const auto bufsiz = 2048; + char buf[bufsiz]; + +#if defined(_MSC_VER) && _MSC_VER < 1900 + auto n = _snprintf_s(buf, bufsiz, bufsiz - 1, fmt, args...); +#else + auto n = snprintf(buf, bufsiz - 1, fmt, args...); +#endif + if (n <= 0) { return n; } + + if (n >= bufsiz - 1) { + std::vector glowable_buf(bufsiz); + + while (n >= static_cast(glowable_buf.size() - 1)) { + glowable_buf.resize(glowable_buf.size() * 2); +#if defined(_MSC_VER) && _MSC_VER < 1900 + n = _snprintf_s(&glowable_buf[0], glowable_buf.size(), + glowable_buf.size() - 1, fmt, args...); +#else + n = snprintf(&glowable_buf[0], glowable_buf.size() - 1, fmt, args...); +#endif + } + return write(&glowable_buf[0], n); + } else { + return write(buf, n); + } +} + +// Socket stream implementation +inline SocketStream::SocketStream(socket_t sock) : sock_(sock) {} + +inline SocketStream::~SocketStream() {} + +inline int SocketStream::read(char *ptr, size_t size) { + if (detail::select_read(sock_, CPPHTTPLIB_READ_TIMEOUT_SECOND, + CPPHTTPLIB_READ_TIMEOUT_USECOND) > 0) { + return recv(sock_, ptr, static_cast(size), 0); + } + return -1; +} + +inline int SocketStream::write(const char *ptr, size_t size) { + return send(sock_, ptr, static_cast(size), 0); +} + +inline int SocketStream::write(const char *ptr) { + return write(ptr, strlen(ptr)); +} + +inline int SocketStream::write(const std::string &s) { + return write(s.data(), s.size()); +} + +inline std::string SocketStream::get_remote_addr() const { + return detail::get_remote_addr(sock_); +} + +// Buffer stream implementation +inline int BufferStream::read(char *ptr, size_t size) { +#if defined(_MSC_VER) && _MSC_VER < 1900 + return static_cast(buffer._Copy_s(ptr, size, size)); +#else + return static_cast(buffer.copy(ptr, size)); +#endif +} + +inline int BufferStream::write(const char *ptr, size_t size) { + buffer.append(ptr, size); + return static_cast(size); +} + +inline int BufferStream::write(const char *ptr) { + return write(ptr, strlen(ptr)); +} + +inline int BufferStream::write(const std::string &s) { + return write(s.data(), s.size()); +} + +inline std::string BufferStream::get_remote_addr() const { return ""; } + +inline const std::string &BufferStream::get_buffer() const { return buffer; } + +// HTTP server implementation +template +inline Server::Server(std::function*()> tq) + : keep_alive_max_count_(CPPHTTPLIB_KEEPALIVE_MAX_COUNT), + payload_max_length_(CPPHTTPLIB_PAYLOAD_MAX_LENGTH), is_running_(false), + svr_sock_(INVALID_SOCKET) { +#ifndef _WIN32 + signal(SIGPIPE, SIG_IGN); +#endif + new_task_queue = tq; +} + +template +inline Server::~Server() {} + +template +inline Server &Server::Get(const char *pattern, Handler handler) { + get_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +template +inline Server &Server::Post(const char *pattern, Handler handler) { + post_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +template +inline Server& Server::Options(const char* pattern, Handler handler) { + options_handlers_.push_back(std::make_pair(std::regex(pattern), handler)); + return *this; +} + +template +inline bool Server::set_base_dir(const char *path) { + if (detail::is_dir(path)) { + base_dir_ = path; + return true; + } + return false; +} + +template +inline void Server::set_file_request_handler(Handler handler) { + file_request_handler_ = handler; +} + +template +inline void Server::set_error_handler(Handler handler) { + error_handler_ = handler; +} + +template +inline void Server::set_logger(Logger logger) { logger_ = logger; } + +template +inline void Server::set_keep_alive_max_count(size_t count) { + keep_alive_max_count_ = count; +} + +template +inline void Server::set_payload_max_length(size_t length) { + payload_max_length_ = length; +} + +template +inline int Server::bind_to_any_port(const char *host, int socket_flags) { + return bind_internal(host, 0, socket_flags); +} + +template +inline bool Server::listen_after_bind() { return listen_internal(); } + +template +inline bool Server::listen(const char *host, int port, int socket_flags) { + if (bind_internal(host, port, socket_flags) < 0) return false; + return listen_internal(); +} + +template +inline bool Server::is_running() const { return is_running_; } + +template +inline void Server::stop() { + if (is_running_) { + assert(svr_sock_ != INVALID_SOCKET); + std::atomic sock(svr_sock_.exchange(INVALID_SOCKET)); + detail::shutdown_socket(sock); + detail::close_socket(sock); + } +} + +template +inline bool Server::parse_request_line(const char *s, Request &req) { + static std::regex re("(GET|HEAD|POST|PUT|PATCH|DELETE|OPTIONS) " + "(([^?]+)(?:\\?(.+?))?) (HTTP/1\\.[01])\r\n"); + + std::cmatch m; + if (std::regex_match(s, m, re)) { + req.version = std::string(m[5]); + req.method = std::string(m[1]); + req.target = std::string(m[2]); + req.path = detail::decode_url(m[3]); + + // Parse query text + auto len = std::distance(m[4].first, m[4].second); + if (len > 0) { detail::parse_query_text(m[4], req.params); } + + return true; + } + + return false; +} + +template +inline bool Server::write_response(W& worker, Stream &strm, bool last_connection, + const Request &req, Response &res) { + assert(res.status != -1); + + if (400 <= res.status && error_handler_) { error_handler_(worker, req, res); } + + // Response line + if (!strm.write_format("HTTP/1.1 %d %s\r\n", res.status, + detail::status_message(res.status))) { + return false; + } + + // Headers + if (last_connection || req.get_header_value("Connection") == "close") { + res.set_header("Connection", "close"); + } + + if (!last_connection && req.get_header_value("Connection") == "Keep-Alive") { + res.set_header("Connection", "Keep-Alive"); + } + + if (res.status != 204 && !res.has_header("Content-Type")) { + res.set_header("Content-Type", "text/plain"); + } + + //Elekto: disable ranges + /*if (!res.has_header("Accept-Ranges")) { + res.set_header("Accept-Ranges", "bytes"); + }*/ + + std::string content_type; + std::string boundary; + + if (req.ranges.size() > 1) { + boundary = detail::make_multipart_data_boundary(); + + auto it = res.headers.find("Content-Type"); + if (it != res.headers.end()) { + content_type = it->second; + res.headers.erase(it); + } + + res.headers.emplace("Content-Type", + "multipart/byteranges; boundary=" + boundary); + } + + if (res.body.empty()) { + if (res.content_provider_resource_length > 0) { + size_t length = 0; + if (req.ranges.empty()) { + length = res.content_provider_resource_length; + } else if (req.ranges.size() == 1) { + auto offsets = detail::get_range_offset_and_length( + req, res.content_provider_resource_length, 0); + auto offset = offsets.first; + length = offsets.second; + auto content_range = detail::make_content_range_header_field( + offset, length, res.content_provider_resource_length); + res.set_header("Content-Range", content_range); + } else { + length = detail::get_multipart_ranges_data_length(req, res, boundary, + content_type); + } + res.set_header("Content-Length", std::to_string(length)); + } else { + if (res.content_provider) { + res.set_header("Transfer-Encoding", "chunked"); + } else if (res.status != 204) { + res.set_header("Content-Length", "0"); + } + } + } else { + if (req.ranges.empty()) { + ; + } else if (req.ranges.size() == 1) { + auto offsets = + detail::get_range_offset_and_length(req, res.body.size(), 0); + auto offset = offsets.first; + auto length = offsets.second; + auto content_range = detail::make_content_range_header_field( + offset, length, res.body.size()); + res.set_header("Content-Range", content_range); + res.body = res.body.substr(offset, length); + } else { + res.body = + detail::make_multipart_ranges_data(req, res, boundary, content_type); + } + +#ifdef CPPHTTPLIB_ZLIB_SUPPORT + // TODO: 'Accpet-Encoding' has gzip, not gzip;q=0 + const auto &encodings = req.get_header_value("Accept-Encoding"); + if (encodings.find("gzip") != std::string::npos && + detail::can_compress(res.get_header_value("Content-Type"))) { + if (detail::compress(res.body)) { + res.set_header("Content-Encoding", "gzip"); + } + } +#endif + + auto length = std::to_string(res.body.size()); + res.set_header("Content-Length", length); + } + + if (!detail::write_headers(strm, res, Headers())) { return false; } + + // Body + if (req.method != "HEAD") { + if (!res.body.empty()) { + if (!strm.write(res.body)) { return false; } + } else if (res.content_provider) { + if (!write_content_with_provider(strm, req, res, boundary, + content_type)) { + return false; + } + } + } + + // Log + if (logger_) { logger_(worker, req, res); } + + return true; +} + +template +inline bool +Server::write_content_with_provider(Stream &strm, const Request &req, + Response &res, const std::string &boundary, + const std::string &content_type) { + if (res.content_provider_resource_length) { + if (req.ranges.empty()) { + if (detail::write_content(strm, res.content_provider, 0, + res.content_provider_resource_length) < 0) { + return false; + } + } else if (req.ranges.size() == 1) { + auto offsets = detail::get_range_offset_and_length( + req, res.content_provider_resource_length, 0); + auto offset = offsets.first; + auto length = offsets.second; + if (detail::write_content(strm, res.content_provider, offset, length) < + 0) { + return false; + } + } else { + if (!detail::write_multipart_ranges_data(strm, req, res, boundary, + content_type)) { + return false; + } + } + } else { + if (detail::write_content_chunked(strm, res.content_provider) < 0) { + return false; + } + } + return true; +} + +template +inline bool Server::handle_file_request(Request &req, Response &res) { + if (!base_dir_.empty() && detail::is_valid_path(req.path)) { + std::string path = base_dir_ + req.path; + + if (!path.empty() && path.back() == '/') { path += "index.html"; } + + if (detail::is_file(path)) { + detail::read_file(path, res.body); + auto type = detail::find_content_type(path); + if (type) { res.set_header("Content-Type", type); } + res.status = 200; + //if (file_request_handler_) { file_request_handler_(req, res); } + return true; + } + } + + return false; +} + +template +inline socket_t Server::create_server_socket(const char *host, int port, + int socket_flags) const { + return detail::create_socket( + host, port, + [](socket_t sock, struct addrinfo &ai) -> bool { + if (::bind(sock, ai.ai_addr, static_cast(ai.ai_addrlen))) { + return false; + } + if (::listen(sock, 5)) { // Listen through 5 channels + return false; + } + return true; + }, + socket_flags); +} + +template +inline int Server::bind_internal(const char *host, int port, int socket_flags) { + if (!is_valid()) { return -1; } + + svr_sock_ = create_server_socket(host, port, socket_flags); + if (svr_sock_ == INVALID_SOCKET) { return -1; } + + if (port == 0) { + struct sockaddr_storage address; + socklen_t len = sizeof(address); + if (getsockname(svr_sock_, reinterpret_cast(&address), + &len) == -1) { + return -1; + } + if (address.ss_family == AF_INET) { + return ntohs(reinterpret_cast(&address)->sin_port); + } else if (address.ss_family == AF_INET6) { + return ntohs( + reinterpret_cast(&address)->sin6_port); + } else { + return -1; + } + } else { + return port; + } +} + +template +inline bool Server::listen_internal() { + auto ret = true; + is_running_ = true; + + { + std::unique_ptr> task_queue(new_task_queue()); + + for (;;) { + if (svr_sock_ == INVALID_SOCKET) { + // The server socket was closed by 'stop' method. + break; + } + + auto val = detail::select_read(svr_sock_, 0, 100000); + + if (val == 0) { // Timeout + continue; + } + + socket_t sock = accept(svr_sock_, nullptr, nullptr); + + if (sock == INVALID_SOCKET) { + if (svr_sock_ != INVALID_SOCKET) { + detail::close_socket(svr_sock_); + ret = false; + } else { + ; // The server socket was closed by user. + } + break; + } + + task_queue->enqueue([=](W& worker) { process_and_close_socket(worker, sock); }); + } + + task_queue->shutdown(); + } + + is_running_ = false; + return ret; +} + +template +inline bool Server::routing(W& worker, Request &req, Response &res) { + if (req.method == "GET" && handle_file_request(req, res)) { return true; } + + if (req.method == "GET" || req.method == "HEAD") { + return dispatch_request(worker, req, res, get_handlers_); + } else if (req.method == "POST") { + return dispatch_request(worker, req, res, post_handlers_); + } else if (req.method == "OPTIONS") { + return dispatch_request(worker, req, res, options_handlers_); + } + return false; +} + +template +inline bool Server::dispatch_request(W& worker, Request &req, Response &res, + Handlers &handlers) { + for (const auto &x : handlers) { + const auto &pattern = x.first; + const auto &handler = x.second; + + if (std::regex_match(req.path, req.matches, pattern)) { + handler(worker, req, res); + return true; + } + } + return false; +} + +template +inline bool +Server::process_request(W& worker, Stream &strm, bool last_connection, + bool &connection_close, + std::function setup_request) { + constexpr auto bufsiz = 2048; + char buf[bufsiz]; + + detail::stream_line_reader reader(strm, buf, bufsiz); + + // Connection has been closed on client + if (!reader.getline()) { return false; } + + Request req; + Response res; + + res.version = "HTTP/1.1"; + + // Check if the request URI doesn't exceed the limit + if (reader.size() > CPPHTTPLIB_REQUEST_URI_MAX_LENGTH) { + Headers dummy; + detail::read_headers(strm, dummy); + res.status = 414; + return write_response(worker, strm, last_connection, req, res); + } + + // Request line and headers + if (!parse_request_line(reader.ptr(), req) || + !detail::read_headers(strm, req.headers)) { + res.status = 400; + return write_response(worker, strm, last_connection, req, res); + } + + if (req.get_header_value("Connection") == "close") { + connection_close = true; + } + + if (req.version == "HTTP/1.0" && + req.get_header_value("Connection") != "Keep-Alive") { + connection_close = true; + } + + req.remote_addr = strm.get_remote_addr(); + + // Body + if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH") { + if (!detail::read_content(strm, req, payload_max_length_, res.status, + Progress(), [&](const char *buf, size_t n) { + if (req.body.size() + n > req.body.max_size()) { + return false; + } + req.body.append(buf, n); + return true; + })) { + return write_response(worker, strm, last_connection, req, res); + } + + const auto &content_type = req.get_header_value("Content-Type"); + + if (!content_type.find("application/x-www-form-urlencoded")) { + detail::parse_query_text(req.body, req.params); + } else if (!content_type.find("multipart/form-data")) { + std::string boundary; + if (!detail::parse_multipart_boundary(content_type, boundary) || + !detail::parse_multipart_formdata(boundary, req.body, req.files)) { + res.status = 400; + return write_response(worker, strm, last_connection, req, res); + } + } + } + + //Elekto: disable ranges + /*if (req.has_header("Range")) { + const auto &range_header_value = req.get_header_value("Range"); + if (!detail::parse_range_header(range_header_value, req.ranges)) { + // TODO: error + } + }*/ + + if (setup_request) { setup_request(req); } + + if (routing(worker, req, res)) { + if (res.status == -1) { res.status = req.ranges.empty() ? 200 : 206; } + } else { + res.status = 404; + } + + return write_response(worker, strm, last_connection, req, res); +} + +template +inline bool Server::is_valid() const { return true; } + +template +inline bool Server::process_and_close_socket(W& worker, socket_t sock) { + return detail::process_and_close_socket( + false, sock, keep_alive_max_count_, + [this, &worker](Stream &strm, bool last_connection, bool &connection_close) { + return process_request(worker, strm, last_connection, connection_close, + nullptr); + }); +} + +// HTTP client implementation +inline Client::Client(const char *host, int port, time_t timeout_sec) + : host_(host), port_(port), timeout_sec_(timeout_sec), + host_and_port_(host_ + ":" + std::to_string(port_)), + keep_alive_max_count_(CPPHTTPLIB_KEEPALIVE_MAX_COUNT), + follow_location_(false) {} + +inline Client::~Client() {} + +inline bool Client::is_valid() const { return true; } + +inline socket_t Client::create_client_socket() const { + return detail::create_socket( + host_.c_str(), port_, [=](socket_t sock, struct addrinfo &ai) -> bool { + detail::set_nonblocking(sock, true); + + auto ret = connect(sock, ai.ai_addr, static_cast(ai.ai_addrlen)); + if (ret < 0) { + if (detail::is_connection_error() || + !detail::wait_until_socket_is_ready(sock, timeout_sec_, 0)) { + detail::close_socket(sock); + return false; + } + } + + detail::set_nonblocking(sock, false); + return true; + }); +} + +inline bool Client::read_response_line(Stream &strm, Response &res) { + const auto bufsiz = 2048; + char buf[bufsiz]; + + detail::stream_line_reader reader(strm, buf, bufsiz); + + if (!reader.getline()) { return false; } + + const static std::regex re("(HTTP/1\\.[01]) (\\d+?) .*\r\n"); + + std::cmatch m; + if (std::regex_match(reader.ptr(), m, re)) { + res.version = std::string(m[1]); + res.status = std::stoi(std::string(m[2])); + } + + return true; +} + +inline bool Client::send(const Request &req, Response &res) { + if (req.path.empty()) { return false; } + + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) { return false; } + + auto ret = process_and_close_socket( + sock, 1, [&](Stream &strm, bool last_connection, bool &connection_close) { + return process_request(strm, req, res, last_connection, + connection_close); + }); + + if (ret && follow_location_ && (300 < res.status && res.status < 400)) { + ret = redirect(req, res); + } + + return ret; +} + +inline bool Client::send(const std::vector &requests, + std::vector &responses) { + size_t i = 0; + while (i < requests.size()) { + auto sock = create_client_socket(); + if (sock == INVALID_SOCKET) { return false; } + + if (!process_and_close_socket( + sock, requests.size() - i, + [&](Stream &strm, bool last_connection, bool &connection_close) -> bool { + auto &req = requests[i]; + auto res = Response(); + i++; + + if (req.path.empty()) { return false; } + auto ret = process_request(strm, req, res, last_connection, + connection_close); + + if (ret && follow_location_ && + (300 < res.status && res.status < 400)) { + ret = redirect(req, res); + } + + if (ret) { responses.emplace_back(std::move(res)); } + + return ret; + })) { + return false; + } + } + + return true; +} + +inline bool Client::redirect(const Request &req, Response &res) { + if (req.redirect_count == 0) { return false; } + + auto location = res.get_header_value("location"); + if (location.empty()) { return false; } + + std::regex re( + R"(^(?:([^:/?#]+):)?(?://([^/?#]*))?([^?#]*(?:\?[^#]*)?)(?:#.*)?)"); + + auto scheme = is_ssl() ? "https" : "http"; + + std::smatch m; + if (regex_match(location, m, re)) { + auto next_scheme = m[1].str(); + auto next_host = m[2].str(); + auto next_path = m[3].str(); + if (next_host.empty()) { next_host = host_; } + if (next_path.empty()) { next_path = "/"; } + + if (next_scheme == scheme && next_host == host_) { + return detail::redirect(*this, req, res, next_path); + } else { + if (next_scheme == "https") { +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + SSLClient cli(next_host.c_str()); + cli.follow_location(true); + return detail::redirect(cli, req, res, next_path); +#else + return false; +#endif + } else { + Client cli(next_host.c_str()); + cli.follow_location(true); + return detail::redirect(cli, req, res, next_path); + } + } + } + return false; +} + +inline void Client::write_request(Stream &strm, const Request &req, + bool last_connection) { + BufferStream bstrm; + + // Request line + auto path = detail::encode_url(req.path); + + bstrm.write_format("%s %s HTTP/1.1\r\n", req.method.c_str(), path.c_str()); + + // Additonal headers + Headers headers; + if (last_connection) { headers.emplace("Connection", "close"); } + + if (!req.has_header("Host")) { + if (is_ssl()) { + if (port_ == 443) { + headers.emplace("Host", host_); + } else { + headers.emplace("Host", host_and_port_); + } + } else { + if (port_ == 80) { + headers.emplace("Host", host_); + } else { + headers.emplace("Host", host_and_port_); + } + } + } + + if (!req.has_header("Accept")) { headers.emplace("Accept", "*/*"); } + + if (!req.has_header("User-Agent")) { + headers.emplace("User-Agent", "cpp-httplib/0.2"); + } + + if (req.body.empty()) { + if (req.method == "POST" || req.method == "PUT" || req.method == "PATCH") { + headers.emplace("Content-Length", "0"); + } + } else { + if (!req.has_header("Content-Type")) { + headers.emplace("Content-Type", "text/plain"); + } + + if (!req.has_header("Content-Length")) { + auto length = std::to_string(req.body.size()); + headers.emplace("Content-Length", length); + } + } + + detail::write_headers(bstrm, req, headers); + + // Body + if (!req.body.empty()) { bstrm.write(req.body); } + + // Flush buffer + auto &data = bstrm.get_buffer(); + strm.write(data.data(), data.size()); +} + +inline bool Client::process_request(Stream &strm, const Request &req, + Response &res, bool last_connection, + bool &connection_close) { + // Send request + write_request(strm, req, last_connection); + + // Receive response and headers + if (!read_response_line(strm, res) || + !detail::read_headers(strm, res.headers)) { + return false; + } + + if (res.get_header_value("Connection") == "close" || + res.version == "HTTP/1.0") { + connection_close = true; + } + + if (req.response_handler) { + if (!req.response_handler(res)) { return false; } + } + + // Body + if (req.method != "HEAD") { + detail::ContentReceiverCore out = [&](const char *buf, size_t n) { + if (res.body.size() + n > res.body.max_size()) { return false; } + res.body.append(buf, n); + return true; + }; + + if (req.content_receiver) { + auto offset = std::make_shared(); + auto length = get_header_value_uint64(res.headers, "Content-Length", 0); + auto receiver = req.content_receiver; + out = [offset, length, receiver](const char *buf, size_t n) { + auto ret = receiver(buf, n, *offset, length); + (*offset) += n; + return ret; + }; + } + + int dummy_status; + if (!detail::read_content(strm, res, std::numeric_limits::max(), + dummy_status, req.progress, out)) { + return false; + } + } + + return true; +} + +inline bool Client::process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback) { + request_count = std::min(request_count, keep_alive_max_count_); + return detail::process_and_close_socket(true, sock, request_count, callback); +} + +inline bool Client::is_ssl() const { return false; } + +inline std::shared_ptr Client::Get(const char *path) { + Progress dummy; + return Get(path, Headers(), dummy); +} + +inline std::shared_ptr Client::Get(const char *path, + Progress progress) { + return Get(path, Headers(), progress); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers) { + Progress dummy; + return Get(path, headers, dummy); +} + +inline std::shared_ptr +Client::Get(const char *path, const Headers &headers, Progress progress) { + Request req; + req.method = "GET"; + req.path = path; + req.headers = headers; + req.progress = progress; + + auto res = std::make_shared(); + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Get(const char *path, + ContentReceiver content_receiver) { + Progress dummy; + return Get(path, Headers(), nullptr, content_receiver, dummy); +} + +inline std::shared_ptr Client::Get(const char *path, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, Headers(), nullptr, content_receiver, progress); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver) { + Progress dummy; + return Get(path, headers, nullptr, content_receiver, dummy); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ContentReceiver content_receiver, + Progress progress) { + return Get(path, headers, nullptr, content_receiver, progress); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver) { + Progress dummy; + return Get(path, headers, response_handler, content_receiver, dummy); +} + +inline std::shared_ptr Client::Get(const char *path, + const Headers &headers, + ResponseHandler response_handler, + ContentReceiver content_receiver, + Progress progress) { + Request req; + req.method = "GET"; + req.path = path; + req.headers = headers; + req.response_handler = response_handler; + req.content_receiver = content_receiver; + req.progress = progress; + + auto res = std::make_shared(); + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Head(const char *path) { + return Head(path, Headers()); +} + +inline std::shared_ptr Client::Head(const char *path, + const Headers &headers) { + Request req; + req.method = "HEAD"; + req.headers = headers; + req.path = path; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Post(const char *path, + const std::string &body, + const char *content_type) { + return Post(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Post(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + Request req; + req.method = "POST"; + req.headers = headers; + req.path = path; + + req.headers.emplace("Content-Type", content_type); + req.body = body; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Post(const char *path, + const Params ¶ms) { + return Post(path, Headers(), params); +} + +inline std::shared_ptr +Client::Post(const char *path, const Headers &headers, const Params ¶ms) { + std::string query; + for (auto it = params.begin(); it != params.end(); ++it) { + if (it != params.begin()) { query += "&"; } + query += it->first; + query += "="; + query += detail::encode_url(it->second); + } + + return Post(path, headers, query, "application/x-www-form-urlencoded"); +} + +inline std::shared_ptr +Client::Post(const char *path, const MultipartFormDataItems &items) { + return Post(path, Headers(), items); +} + +inline std::shared_ptr +Client::Post(const char *path, const Headers &headers, + const MultipartFormDataItems &items) { + Request req; + req.method = "POST"; + req.headers = headers; + req.path = path; + + auto boundary = detail::make_multipart_data_boundary(); + + req.headers.emplace("Content-Type", + "multipart/form-data; boundary=" + boundary); + + for (const auto &item : items) { + req.body += "--" + boundary + "\r\n"; + req.body += "Content-Disposition: form-data; name=\"" + item.name + "\""; + if (!item.filename.empty()) { + req.body += "; filename=\"" + item.filename + "\""; + } + req.body += "\r\n"; + if (!item.content_type.empty()) { + req.body += "Content-Type: " + item.content_type + "\r\n"; + } + req.body += "\r\n"; + req.body += item.content + "\r\n"; + } + + req.body += "--" + boundary + "--\r\n"; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Put(const char *path, + const std::string &body, + const char *content_type) { + return Put(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Put(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + Request req; + req.method = "PUT"; + req.headers = headers; + req.path = path; + + req.headers.emplace("Content-Type", content_type); + req.body = body; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Patch(const char *path, + const std::string &body, + const char *content_type) { + return Patch(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Patch(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + Request req; + req.method = "PATCH"; + req.headers = headers; + req.path = path; + + req.headers.emplace("Content-Type", content_type); + req.body = body; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Delete(const char *path) { + return Delete(path, Headers(), std::string(), nullptr); +} + +inline std::shared_ptr Client::Delete(const char *path, + const std::string &body, + const char *content_type) { + return Delete(path, Headers(), body, content_type); +} + +inline std::shared_ptr Client::Delete(const char *path, + const Headers &headers) { + return Delete(path, headers, std::string(), nullptr); +} + +inline std::shared_ptr Client::Delete(const char *path, + const Headers &headers, + const std::string &body, + const char *content_type) { + Request req; + req.method = "DELETE"; + req.headers = headers; + req.path = path; + + if (content_type) { req.headers.emplace("Content-Type", content_type); } + req.body = body; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline std::shared_ptr Client::Options(const char *path) { + return Options(path, Headers()); +} + +inline std::shared_ptr Client::Options(const char *path, + const Headers &headers) { + Request req; + req.method = "OPTIONS"; + req.path = path; + req.headers = headers; + + auto res = std::make_shared(); + + return send(req, *res) ? res : nullptr; +} + +inline void Client::set_keep_alive_max_count(size_t count) { + keep_alive_max_count_ = count; +} + +inline void Client::follow_location(bool on) { follow_location_ = on; } + +/* + * SSL Implementation + */ +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +namespace detail { + +template +inline bool process_and_close_socket_ssl(bool is_client_request, socket_t sock, + size_t keep_alive_max_count, + SSL_CTX *ctx, std::mutex &ctx_mutex, + U SSL_connect_or_accept, V setup, + T callback) { + assert(keep_alive_max_count > 0); + + SSL *ssl = nullptr; + { + std::lock_guard guard(ctx_mutex); + ssl = SSL_new(ctx); + } + + if (!ssl) { + close_socket(sock); + return false; + } + + auto bio = BIO_new_socket(static_cast(sock), BIO_NOCLOSE); + SSL_set_bio(ssl, bio, bio); + + if (!setup(ssl)) { + SSL_shutdown(ssl); + { + std::lock_guard guard(ctx_mutex); + SSL_free(ssl); + } + + close_socket(sock); + return false; + } + + bool ret = false; + + if (SSL_connect_or_accept(ssl) == 1) { + if (keep_alive_max_count > 1) { + auto count = keep_alive_max_count; + while (count > 0 && + (is_client_request || + detail::select_read(sock, CPPHTTPLIB_KEEPALIVE_TIMEOUT_SECOND, + CPPHTTPLIB_KEEPALIVE_TIMEOUT_USECOND) > 0)) { + SSLSocketStream strm(sock, ssl); + auto last_connection = count == 1; + auto connection_close = false; + + ret = callback(ssl, strm, last_connection, connection_close); + if (!ret || connection_close) { break; } + + count--; + } + } else { + SSLSocketStream strm(sock, ssl); + auto dummy_connection_close = false; + ret = callback(ssl, strm, true, dummy_connection_close); + } + } + + SSL_shutdown(ssl); + { + std::lock_guard guard(ctx_mutex); + SSL_free(ssl); + } + + close_socket(sock); + + return ret; +} + +#if OPENSSL_VERSION_NUMBER < 0x10100000L +static std::shared_ptr> openSSL_locks_; + +class SSLThreadLocks { +public: + SSLThreadLocks() { + openSSL_locks_ = + std::make_shared>(CRYPTO_num_locks()); + CRYPTO_set_locking_callback(locking_callback); + } + + ~SSLThreadLocks() { CRYPTO_set_locking_callback(nullptr); } + +private: + static void locking_callback(int mode, int type, const char * /*file*/, + int /*line*/) { + auto &locks = *openSSL_locks_; + if (mode & CRYPTO_LOCK) { + locks[type].lock(); + } else { + locks[type].unlock(); + } + } +}; + +#endif + +class SSLInit { +public: + SSLInit() { + SSL_load_error_strings(); + SSL_library_init(); + } + + ~SSLInit() { ERR_free_strings(); } + +private: +#if OPENSSL_VERSION_NUMBER < 0x10100000L + SSLThreadLocks thread_init_; +#endif +}; + +static SSLInit sslinit_; + +} // namespace detail + +// SSL socket stream implementation +inline SSLSocketStream::SSLSocketStream(socket_t sock, SSL *ssl) + : sock_(sock), ssl_(ssl) {} + +inline SSLSocketStream::~SSLSocketStream() {} + +inline int SSLSocketStream::read(char *ptr, size_t size) { + if (SSL_pending(ssl_) > 0 || + detail::select_read(sock_, CPPHTTPLIB_READ_TIMEOUT_SECOND, + CPPHTTPLIB_READ_TIMEOUT_USECOND) > 0) { + return SSL_read(ssl_, ptr, static_cast(size)); + } + return -1; +} + +inline int SSLSocketStream::write(const char *ptr, size_t size) { + return SSL_write(ssl_, ptr, static_cast(size)); +} + +inline int SSLSocketStream::write(const char *ptr) { + return write(ptr, strlen(ptr)); +} + +inline int SSLSocketStream::write(const std::string &s) { + return write(s.data(), s.size()); +} + +inline std::string SSLSocketStream::get_remote_addr() const { + return detail::get_remote_addr(sock_); +} + +// SSL HTTP server implementation +inline SSLServer::SSLServer(const char *cert_path, const char *private_key_path, + const char *client_ca_cert_file_path, + const char *client_ca_cert_dir_path) { + ctx_ = SSL_CTX_new(SSLv23_server_method()); + + if (ctx_) { + SSL_CTX_set_options(ctx_, + SSL_OP_ALL | SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | + SSL_OP_NO_COMPRESSION | + SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION); + + // auto ecdh = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1); + // SSL_CTX_set_tmp_ecdh(ctx_, ecdh); + // EC_KEY_free(ecdh); + + if (SSL_CTX_use_certificate_chain_file(ctx_, cert_path) != 1 || + SSL_CTX_use_PrivateKey_file(ctx_, private_key_path, SSL_FILETYPE_PEM) != + 1) { + SSL_CTX_free(ctx_); + ctx_ = nullptr; + } else if (client_ca_cert_file_path || client_ca_cert_dir_path) { + // if (client_ca_cert_file_path) { + // auto list = SSL_load_client_CA_file(client_ca_cert_file_path); + // SSL_CTX_set_client_CA_list(ctx_, list); + // } + + SSL_CTX_load_verify_locations(ctx_, client_ca_cert_file_path, + client_ca_cert_dir_path); + + SSL_CTX_set_verify( + ctx_, + SSL_VERIFY_PEER | + SSL_VERIFY_FAIL_IF_NO_PEER_CERT, // SSL_VERIFY_CLIENT_ONCE, + nullptr); + } + } +} + +inline SSLServer::~SSLServer() { + if (ctx_) { SSL_CTX_free(ctx_); } +} + +inline bool SSLServer::is_valid() const { return ctx_; } + +inline bool SSLServer::process_and_close_socket(socket_t sock) { + return detail::process_and_close_socket_ssl( + false, sock, keep_alive_max_count_, ctx_, ctx_mutex_, SSL_accept, + [](SSL * /*ssl*/) { return true; }, + [this](SSL *ssl, Stream &strm, bool last_connection, + bool &connection_close) { + return process_request(strm, last_connection, connection_close, + [&](Request &req) { req.ssl = ssl; }); + }); +} + +// SSL HTTP client implementation +inline SSLClient::SSLClient(const char *host, int port, time_t timeout_sec, + const char *client_cert_path, + const char *client_key_path) + : Client(host, port, timeout_sec) { + ctx_ = SSL_CTX_new(SSLv23_client_method()); + + detail::split(&host_[0], &host_[host_.size()], '.', + [&](const char *b, const char *e) { + host_components_.emplace_back(std::string(b, e)); + }); + if (client_cert_path && client_key_path) { + if (SSL_CTX_use_certificate_file(ctx_, client_cert_path, + SSL_FILETYPE_PEM) != 1 || + SSL_CTX_use_PrivateKey_file(ctx_, client_key_path, SSL_FILETYPE_PEM) != + 1) { + SSL_CTX_free(ctx_); + ctx_ = nullptr; + } + } +} + +inline SSLClient::~SSLClient() { + if (ctx_) { SSL_CTX_free(ctx_); } +} + +inline bool SSLClient::is_valid() const { return ctx_; } + +inline void SSLClient::set_ca_cert_path(const char *ca_cert_file_path, + const char *ca_cert_dir_path) { + if (ca_cert_file_path) { ca_cert_file_path_ = ca_cert_file_path; } + if (ca_cert_dir_path) { ca_cert_dir_path_ = ca_cert_dir_path; } +} + +inline void SSLClient::enable_server_certificate_verification(bool enabled) { + server_certificate_verification_ = enabled; +} + +inline long SSLClient::get_openssl_verify_result() const { + return verify_result_; +} + +inline SSL_CTX* SSLClient::ssl_context() const noexcept { + return ctx_; +} + +inline bool SSLClient::process_and_close_socket( + socket_t sock, size_t request_count, + std::function + callback) { + + request_count = std::min(request_count, keep_alive_max_count_); + + return is_valid() && + detail::process_and_close_socket_ssl( + true, sock, request_count, ctx_, ctx_mutex_, + [&](SSL *ssl) { + if (ca_cert_file_path_.empty()) { + SSL_CTX_set_verify(ctx_, SSL_VERIFY_NONE, nullptr); + } else { + if (!SSL_CTX_load_verify_locations( + ctx_, ca_cert_file_path_.c_str(), nullptr)) { + return false; + } + SSL_CTX_set_verify(ctx_, SSL_VERIFY_PEER, nullptr); + } + + if (SSL_connect(ssl) != 1) { return false; } + + if (server_certificate_verification_) { + verify_result_ = SSL_get_verify_result(ssl); + + if (verify_result_ != X509_V_OK) { return false; } + + auto server_cert = SSL_get_peer_certificate(ssl); + + if (server_cert == nullptr) { return false; } + + if (!verify_host(server_cert)) { + X509_free(server_cert); + return false; + } + X509_free(server_cert); + } + + return true; + }, + [&](SSL *ssl) { + SSL_set_tlsext_host_name(ssl, host_.c_str()); + return true; + }, + [&](SSL * /*ssl*/, Stream &strm, bool last_connection, + bool &connection_close) { + return callback(strm, last_connection, connection_close); + }); +} + +inline bool SSLClient::is_ssl() const { return true; } + +inline bool SSLClient::verify_host(X509 *server_cert) const { + /* Quote from RFC2818 section 3.1 "Server Identity" + + If a subjectAltName extension of type dNSName is present, that MUST + be used as the identity. Otherwise, the (most specific) Common Name + field in the Subject field of the certificate MUST be used. Although + the use of the Common Name is existing practice, it is deprecated and + Certification Authorities are encouraged to use the dNSName instead. + + Matching is performed using the matching rules specified by + [RFC2459]. If more than one identity of a given type is present in + the certificate (e.g., more than one dNSName name, a match in any one + of the set is considered acceptable.) Names may contain the wildcard + character * which is considered to match any single domain name + component or component fragment. E.g., *.a.com matches foo.a.com but + not bar.foo.a.com. f*.com matches foo.com but not bar.com. + + In some cases, the URI is specified as an IP address rather than a + hostname. In this case, the iPAddress subjectAltName must be present + in the certificate and must exactly match the IP in the URI. + + */ + return verify_host_with_subject_alt_name(server_cert) || + verify_host_with_common_name(server_cert); +} + +inline bool +SSLClient::verify_host_with_subject_alt_name(X509 *server_cert) const { + auto ret = false; + + auto type = GEN_DNS; + + struct in6_addr addr6; + struct in_addr addr; + size_t addr_len = 0; + +#ifndef __MINGW32__ + if (inet_pton(AF_INET6, host_.c_str(), &addr6)) { + type = GEN_IPADD; + addr_len = sizeof(struct in6_addr); + } else if (inet_pton(AF_INET, host_.c_str(), &addr)) { + type = GEN_IPADD; + addr_len = sizeof(struct in_addr); + } +#endif + + auto alt_names = static_cast( + X509_get_ext_d2i(server_cert, NID_subject_alt_name, nullptr, nullptr)); + + if (alt_names) { + auto dsn_matched = false; + auto ip_mached = false; + + auto count = sk_GENERAL_NAME_num(alt_names); + + for (auto i = 0; i < count && !dsn_matched; i++) { + auto val = sk_GENERAL_NAME_value(alt_names, i); + if (val->type == type) { + auto name = (const char *)ASN1_STRING_get0_data(val->d.ia5); + auto name_len = (size_t)ASN1_STRING_length(val->d.ia5); + + if (strlen(name) == name_len) { + switch (type) { + case GEN_DNS: dsn_matched = check_host_name(name, name_len); break; + + case GEN_IPADD: + if (!memcmp(&addr6, name, addr_len) || + !memcmp(&addr, name, addr_len)) { + ip_mached = true; + } + break; + } + } + } + } + + if (dsn_matched || ip_mached) { ret = true; } + } + + GENERAL_NAMES_free((STACK_OF(GENERAL_NAME) *)alt_names); + + return ret; +} + +inline bool SSLClient::verify_host_with_common_name(X509 *server_cert) const { + const auto subject_name = X509_get_subject_name(server_cert); + + if (subject_name != nullptr) { + char name[BUFSIZ]; + auto name_len = X509_NAME_get_text_by_NID(subject_name, NID_commonName, + name, sizeof(name)); + + if (name_len != -1) { return check_host_name(name, name_len); } + } + + return false; +} + +inline bool SSLClient::check_host_name(const char *pattern, + size_t pattern_len) const { + if (host_.size() == pattern_len && host_ == pattern) { return true; } + + // Wildcard match + // https://bugs.launchpad.net/ubuntu/+source/firefox-3.0/+bug/376484 + std::vector pattern_components; + detail::split(&pattern[0], &pattern[pattern_len], '.', + [&](const char *b, const char *e) { + pattern_components.emplace_back(std::string(b, e)); + }); + + if (host_components_.size() != pattern_components.size()) { return false; } + + auto itr = pattern_components.begin(); + for (const auto &h : host_components_) { + auto &p = *itr; + if (p != h && p != "*") { + auto partial_match = (p.size() > 0 && p[p.size() - 1] == '*' && + !p.compare(0, p.size() - 1, h)); + if (!partial_match) { return false; } + } + ++itr; + } + + return true; +} +#endif + +} // namespace httplib + +#endif // CPPHTTPLIB_HTTPLIB_H diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..057cde9 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,87 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include +#include +#include "utility.h" +#include "service.h" + +void printUsage(const char* exe) { + std::cout << "RandomX Service v" RANDOMX_SERVICE_VERSION << std::endl; + std::cout << "Usage: " << exe << " [OPTIONS]" << std::endl; + std::cout << "Supported options:" << std::endl; + std::cout << " -host Bind to a specific address (default: localhost)" << std::endl + << " -port Bind to a specific port (default: 39093)" << std::endl + << " -threads Use a specific number of threads (default: all CPU threads)" << std::endl + << " -flags Use specific RandomX flags (default: auto)" << std::endl + << " -origin Allow cross-origin requests from a specific web page" << std::endl + << " -log Log all HTTP requests to stdout" << std::endl + << " -help Display this message" << std::endl; +} + +int main(int argc, char** argv) { + std::string host, origin; + int port, threads, flags; + bool help, log; + + readStringOption("-host", argc, argv, host, "localhost"); + readIntOption("-port", argc, argv, port, 39093); + readIntOption("-threads", argc, argv, threads, randomx::Service::getMachineThreads()); + readIntOption("-flags", argc, argv, flags, randomx::Service::getAutoFlags()); + readStringOption("-origin", argc, argv, origin, ""); + readOption("-log", argc, argv, log); + readOption("-help", argc, argv, help); + + if (help) { + printUsage(argv[0]); + return 0; + } + + try { + std::cout << "Initializing service..." << std::endl; + randomx::Service svc(threads, flags); + std::cout << "Threads: " << threads << ", Flags: " << svc.getFlags() << std::endl; + if (!origin.empty()) { + std::cout << "Setting origin to " << origin << std::endl; + svc.setOrigin(origin); + } + if (log) { + std::cout << "Logging is enabled" << std::endl; + svc.enableLog(); + } + std::cout << "Binding to " << host << ":" << port << "..." << std::endl; + if (!svc.run(host.data(), port)) { + throw std::runtime_error("Failed to bind"); + } + } + catch (const std::exception & e) { + std::cout << "ERROR: " << e.what() << std::endl; + return 1; + } + return 0; +} \ No newline at end of file diff --git a/src/service.cpp b/src/service.cpp new file mode 100644 index 0000000..e6a70b7 --- /dev/null +++ b/src/service.cpp @@ -0,0 +1,368 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "httplib.h" +#include "service.h" +#include "service_worker.h" +#include "service_private.h" +#include "thread_pool.h" +#include "utility.h" +#include "hex.h" +#include +#include +#include +#include + +namespace randomx { + +#define SERVICE_ALGORITHM "rx/0" +#define SERVICE_MAX_BATCH_SIZE (256u) +#define HEADER_ACCEPT "Accept" +#define HEADER_CONTENT "Content-Type" +#define HEADER_RANDOMX_SEED "RandomX-Seed" +#define HEADER_ORIGIN "Origin" +#define HEADER_REFERER "Referer" +#define BINARY_FORMAT "application/x.randomx+bin" +#define HEX_FORMAT "application/x.randomx+hex" +#define BINARY_FORMAT_BATCH "application/x.randomx.batch+bin" +#define HEX_FORMAT_BATCH "application/x.randomx.batch+hex" + + using RandomxHash = std::array; + + bool Service::run(const char* hostname, int port) { + return data_->server_.listen(hostname, port); + } + + Service::~Service() { + + } + + randomx_vm* Service::createMachine() const { + auto* machine = randomx_create_vm(data_->flags_, data_->cache_, data_->dataset_); + if (machine == nullptr) { + throw std::runtime_error("randomx_create_vm failed"); + } + return machine; + } + + void Service::destroyMachine(randomx_vm* machine) const { + randomx_destroy_vm(machine); + } + + void Service::refreshMachine(randomx_vm* machine) const { + if (data_->flags_ & RANDOMX_FLAG_FULL_MEM) { + randomx_vm_set_dataset(machine, data_->dataset_); + } else { + randomx_vm_set_cache(machine, data_->cache_); + } + } + + void Service::reinitDataset() { + if (data_->flags_ & RANDOMX_FLAG_FULL_MEM) { + uint32_t datasetItemCount = randomx_dataset_item_count(); + auto threads = data_->threads_; + if (threads > 1) { + auto perThread = datasetItemCount / threads; + auto remainder = datasetItemCount % threads; + std::vector workers; + uint32_t startItem = 0; + for (int i = 0; i < threads; ++i) { + auto count = perThread + (i == threads - 1 ? remainder : 0); + workers.push_back(std::thread(&randomx_init_dataset, data_->dataset_, data_->cache_, startItem, count)); + startItem += count; + } + for (unsigned i = 0; i < workers.size(); ++i) { + workers[i].join(); + } + } + else { + randomx_init_dataset(data_->dataset_, data_->cache_, 0, datasetItemCount); + } + } + } + + void Service::setOrigin(const std::string& origin) { + data_->origin_ = origin; + } + + int Service::getFlags() const { + return data_->flags_; + } + + bool Service::allowCors(const char* method, const httplib::Request& req, httplib::Response& res) { + if (req.has_header(HEADER_ORIGIN) && req.get_header_value(HEADER_ORIGIN) == data_->origin_) { + res.set_header("Access-Control-Allow-Origin", data_->origin_); + res.set_header("Access-Control-Allow-Methods", method); + res.set_header("Access-Control-Allow-Headers", HEADER_ACCEPT ", " HEADER_CONTENT ", " HEADER_RANDOMX_SEED); + res.set_header("Access-Control-Max-Age", "120"); + return true; + } + return false; + } + + int Service::getAutoFlags() { + return ServicePrivate::AutoFlags; + } + + int Service::getMachineThreads() { + return std::thread::hardware_concurrency(); + } + + bool readRequestBody(const httplib::Request& req, httplib::Response& res, std::vector& body) { + if (!req.has_header(HEADER_CONTENT)) { + res.status = 415; + return false; + } + const auto ct = req.get_header_value(HEADER_CONTENT); + const auto& input = req.body; + if (ct == HEX_FORMAT) { + body.resize(input.size() / 2); + if (!hex2bin(input.data(), input.size(), body.data())) { + res.status = 400; + return false; + } + return true; + } + if (ct == BINARY_FORMAT) { + body.resize(input.size()); + memcpy(body.data(), input.data(), input.size()); + return true; + } + res.status = 415; + return false; + } + + bool readRequestBatch(const httplib::Request& req, httplib::Response& res, std::vector>& batch) { + if (!req.has_header(HEADER_CONTENT)) { + res.status = 415; + return false; + } + const auto ct = req.get_header_value(HEADER_CONTENT); + const auto& input = req.body; + size_t pos = 0; + if (ct == HEX_FORMAT_BATCH) { + while (pos < input.size()) { + std::vector body; + auto space = input.find(' ', pos); + if (space == std::string::npos) { + space = input.size(); + } + auto segmentSize = space - pos; + body.resize(segmentSize / 2); + if (!hex2bin(input.data() + pos, segmentSize, body.data())) { + res.status = 400; + return false; + } + batch.push_back(body); + pos = space + 1; + } + } + else if (ct == BINARY_FORMAT_BATCH) { + while (pos < input.size()) { + std::vector body; + size_t segmentSize = input[pos]; + pos++; + if (pos + segmentSize > input.size()) { + res.status = 400; + return false; + } + body.resize(segmentSize); + memcpy(body.data(), input.data() + pos, segmentSize); + batch.push_back(body); + pos += segmentSize; + } + } + else { + res.status = 415; + return false; + } + if (batch.empty()) { + res.status = 400; + return false; + } + if (batch.size() > SERVICE_MAX_BATCH_SIZE) { + res.status = 413; + return false; + } + return true; + } + + bool Service::checkSeed(const httplib::Request& req) { + if (req.has_header(HEADER_RANDOMX_SEED)) { + auto seed = req.get_header_value(HEADER_RANDOMX_SEED); + for (char& c : seed) { + c = std::tolower(c); + } + return seed == data_->seedHex_; + } + return true; + } + + void Service::reinitCache(const void* seed, size_t seedSize) { + randomx_init_cache(data_->cache_, seed, seedSize); + data_->seedHex_ = bin2hex((const char*)seed, seedSize); + data_->initialized_ = true; + } + + void Service::enableLog() { + data_->server_.set_logger([](ServiceWorker& w, const httplib::Request& req, const httplib::Response& res) { + std::cout << "W" << w.id_ << " " << req.remote_addr << " \"" << req.method << " " << req.path << "\"" << " " << res.status << " " << res.body.size() << " "; + if (req.has_header(HEADER_REFERER)) { + std::cout << "\"" << req.get_header_value(HEADER_REFERER) << "\""; + } + else { + std::cout << "\"-\""; + } + std::cout << std::endl; + }); + } + + inline void outputContentType(bool outputHex, httplib::Response& res) { + res.set_header(HEADER_CONTENT, outputHex ? HEX_FORMAT : BINARY_FORMAT); + } + + template + void outputSingleHash(bool outputHex, const RandomxHash& hash, httplib::Response& res) { + if (outputHex) { + res.body += bin2hex(hash.data(), hash.size()); + if (separator) { + res.body += ' '; + } + } + else { + if (separator) { + res.body += (char)(hash.size() & 0xff); + } + res.body += std::string(hash.data(), hash.size()); + } + } + + bool getOutputFormat(const httplib::Request& req, const char* binary) { + bool outputHex = true; + size_t accepts; + if (accepts = req.get_header_value_count(HEADER_ACCEPT)) { + for (size_t i = 0; i < accepts; ++i) { + if (req.get_header_value(HEADER_ACCEPT, i) == binary) { + outputHex = false; + break; + } + } + } + return outputHex; + } + + void outputBody(const httplib::Request& req, httplib::Response& res, RandomxHash& hash) { + bool outputHex = getOutputFormat(req, BINARY_FORMAT); + outputContentType(outputHex, res); + outputSingleHash(outputHex, hash, res); + } + + void outputBody(const httplib::Request& req, httplib::Response& res, std::vector& batch) { + bool outputHex = getOutputFormat(req, BINARY_FORMAT_BATCH); + outputContentType(outputHex, res); + for (const auto& hash : batch) { + outputSingleHash(outputHex, hash, res); + } + } + + Service::Service(size_t threads, int flags) : + data_(new ServicePrivate(*this, threads, flags)) + { + auto options = [&](ServiceWorker& w, const httplib::Request& req, httplib::Response& res) { + if (!allowCors("POST", req, res)) { + res.status = 403; + } + else { + res.status = 204; + } + }; + + data_->server_ + .Get("/info", [&](ServiceWorker& w, const httplib::Request& req, httplib::Response& res) { + allowCors("GET", req, res); + res.set_content("RandomX Service v" RANDOMX_SERVICE_VERSION "\nalgorithm: " SERVICE_ALGORITHM "\nthreads: " + std::to_string(data_->threads_), "text/plain"); + }) + .Post("/seed", [&](ServiceWorker& w, const httplib::Request& req, httplib::Response& res) { + allowCors("POST", req, res); + std::vector body; + if (!readRequestBody(req, res, body)) { + return; + } + if (body.size() > 60) { + res.status = 413; + return; + } + w.pool_.reseed(w, body.data(), body.size()); + res.status = 204; + }) + .Post("/hash", [&](ServiceWorker& w, const httplib::Request& req, httplib::Response& res) { + allowCors("POST", req, res); + if (!data_->initialized_) { + res.status = 403; + return; + } + std::vector body; + if (!readRequestBody(req, res, body)) { + return; + } + if (!checkSeed(req)) { + res.status = 422; + return; + } + RandomxHash hash; + randomx_calculate_hash(w.vm_, body.data(), body.size(), hash.data()); + outputBody(req, res, hash); + }) + .Post("/batch", [&](ServiceWorker& w, const httplib::Request& req, httplib::Response& res) { + allowCors("POST", req, res); + if (!data_->initialized_) { + res.status = 403; + return; + } + std::vector> batch; + if (!readRequestBatch(req, res, batch)) { + return; + } + if (!checkSeed(req)) { + res.status = 422; + return; + } + std::vector hashes; + hashes.resize(batch.size()); + randomx_calculate_hash_first(w.vm_, batch[0].data(), batch[0].size()); + for (int i = 1; i < batch.size(); ++i) { + randomx_calculate_hash_next(w.vm_, batch[i].data(), batch[i].size(), hashes[i - 1].data()); + } + randomx_calculate_hash_last(w.vm_, hashes.back().data()); + outputBody(req, res, hashes); + }) + .Options("/seed", options) + .Options("/hash", options) + .Options("/batch", options); + } +} diff --git a/src/service.h b/src/service.h new file mode 100644 index 0000000..f80a1f2 --- /dev/null +++ b/src/service.h @@ -0,0 +1,69 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include +#include + +#define RANDOMX_SERVICE_VERSION "1.0.0" + +namespace httplib { + struct Request; + struct Response; +} + +struct randomx_vm; + +namespace randomx { + + struct ServiceWorker; + struct ServicePrivate; + + class Service { + public: + Service(size_t, int); + ~Service(); + bool run(const char* hostname, int port); + randomx_vm* createMachine() const; + void destroyMachine(randomx_vm* machine) const; + void refreshMachine(randomx_vm* machine) const; + void reinitCache(const void* seed, size_t seedSize); + void reinitDataset(); + bool checkSeed(const httplib::Request& req); + void setOrigin(const std::string& origin); + void enableLog(); + bool allowCors(const char* method, const httplib::Request& req, httplib::Response& res); + static int getAutoFlags(); + static int getMachineThreads(); + int getFlags() const; + private: + std::unique_ptr data_; + }; + +} diff --git a/src/service_private.h b/src/service_private.h new file mode 100644 index 0000000..be5c43f --- /dev/null +++ b/src/service_private.h @@ -0,0 +1,105 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include +#include +#include +#include "../RandomX/src/randomx.h" +#include "httplib.h" +#include "thread_pool.h" + +namespace randomx { + + class Service; + class ServiceWorker; + + struct ServicePrivate { + static const int AutoFlags = INT_MAX; + ServicePrivate(Service& svc, int threads, int flags) + : + server_([&svc, threads] { return new ThreadPool(svc, threads); }), + cache_(nullptr), + dataset_(nullptr), + threads_(threads), + initialized_(false) + { + bool autoFlags = flags == AutoFlags; + if (autoFlags) { + flags = randomx_get_flags() | RANDOMX_FLAG_FULL_MEM | RANDOMX_FLAG_LARGE_PAGES; + } + cache_ = randomx_alloc_cache((randomx_flags)flags); + if (autoFlags && cache_ == nullptr) { + std::cout << "RANDOMX_FLAG_LARGE_PAGES was not successful (randomx_cache)" << std::endl; + flags &= ~RANDOMX_FLAG_LARGE_PAGES; + cache_ = randomx_alloc_cache((randomx_flags)flags); + } + if (cache_ == nullptr) { + throw std::runtime_error("randomx_alloc_cache failed"); + } + if (flags & RANDOMX_FLAG_FULL_MEM) { + dataset_ = randomx_alloc_dataset((randomx_flags)flags); + if (dataset_ == nullptr) { + if (autoFlags) { + std::cout << "RANDOMX_FLAG_LARGE_PAGES was not successful (randomx_dataset)" << std::endl; + flags &= ~RANDOMX_FLAG_LARGE_PAGES; + dataset_ = randomx_alloc_dataset((randomx_flags)flags); + if (dataset_ == nullptr) { + std::cout << "RANDOMX_FLAG_FULL_MEM was not successful" << std::endl; + flags &= ~RANDOMX_FLAG_FULL_MEM; + } + } + else { + throw std::runtime_error("randomx_alloc_dataset failed"); + } + } + } + flags_ = (randomx_flags)flags; + } + + ~ServicePrivate() { + if (cache_ != nullptr) { + randomx_release_cache(cache_); + } + if (dataset_ != nullptr) { + randomx_release_dataset(dataset_); + } + } + + randomx_dataset* dataset_; + randomx_cache* cache_; + httplib::Server server_; + randomx_flags flags_; + size_t threads_; + std::string seedHex_; + std::string origin_; + bool initialized_; + }; + +} \ No newline at end of file diff --git a/src/service_worker.cpp b/src/service_worker.cpp new file mode 100644 index 0000000..478b6b5 --- /dev/null +++ b/src/service_worker.cpp @@ -0,0 +1,75 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "service_worker.h" +#include "thread_pool.h" +#include "service.h" + +namespace randomx { + + ServiceWorker::ServiceWorker(ThreadPool& pool, unsigned id) : + pool_(pool), + vm_(pool.getService().createMachine()), + idle_(true), + id_(id) + { + } + + ServiceWorker::~ServiceWorker() { + pool_.getService().destroyMachine(vm_); + } + + void ServiceWorker::operator()() { + for (;;) { + { + std::unique_lock lock(mutex_); + idle_ = true; + cond_.notify_one(); + } + std::function fn; + { + std::unique_lock lock(pool_.mutex_); + pool_.cond_.wait( + lock, [&] { return (!pool_.reseeding_ && !pool_.jobs_.empty()) || pool_.shutdown_; }); + + if (pool_.shutdown_ && pool_.jobs_.empty()) { break; } + + fn = pool_.jobs_.front(); + pool_.jobs_.pop_front(); + idle_ = false; + } + fn(*this); + } + } + + void ServiceWorker::waitIdle() { + std::unique_lock lock(mutex_); + cond_.wait( + lock, [&] { return idle_; }); + } +} \ No newline at end of file diff --git a/src/service_worker.h b/src/service_worker.h new file mode 100644 index 0000000..1a548b3 --- /dev/null +++ b/src/service_worker.h @@ -0,0 +1,60 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include +#include + +struct randomx_vm; + +namespace randomx { + + class ThreadPool; + + struct ServiceWorker { + ServiceWorker(ThreadPool& pool, unsigned id); + ~ServiceWorker(); + + ServiceWorker(const ServiceWorker&) = delete; + + ServiceWorker& operator=(ServiceWorker const&) = delete; + + void operator()(); + + void waitIdle(); + + randomx_vm* vm_; + ThreadPool& pool_; + bool idle_; + std::condition_variable cond_; + std::mutex mutex_; + unsigned id_; + }; + +} \ No newline at end of file diff --git a/src/task_queue.h b/src/task_queue.h new file mode 100644 index 0000000..ce4223b --- /dev/null +++ b/src/task_queue.h @@ -0,0 +1,44 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include + +namespace httplib { + + template + class TaskQueue { + public: + TaskQueue() {} + virtual ~TaskQueue() {} + virtual void enqueue(std::function fn) = 0; + virtual void shutdown() = 0; + }; + +} \ No newline at end of file diff --git a/src/thread_pool.cpp b/src/thread_pool.cpp new file mode 100644 index 0000000..1ec91f1 --- /dev/null +++ b/src/thread_pool.cpp @@ -0,0 +1,92 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#include "thread_pool.h" +#include "service_worker.h" +#include "service.h" + +namespace randomx { + + ThreadPool::ThreadPool(Service& svc, size_t n) : + svc_(svc), + shutdown_(false), + reseeding_(false) + { + workers_.reserve(n); + for (unsigned i = 0; i < n; ++i) { + workers_.push_back(std::make_shared(*this, i)); + auto t = std::make_shared(std::ref(*workers_.back())); + threads_.push_back(t); + } + } + + ThreadPool::~ThreadPool() + { + } + + void ThreadPool::enqueue(std::function fn) { + std::unique_lock lock(mutex_); + jobs_.push_back(fn); + cond_.notify_one(); + } + + void ThreadPool::shutdown() { + { + std::unique_lock lock(mutex_); + shutdown_ = true; + } + cond_.notify_all(); + for (auto t : threads_) { + t->join(); + } + } + + void ThreadPool::reseed(ServiceWorker& self, const void* seed, size_t length) { + //set the reseed variable; this stops pending requests from being processed + { + std::unique_lock lock(mutex_); + reseeding_ = true; + } + //wait until all workers are idle (except of the worker who is running this code) + for (auto& worker : workers_) { + if (&self != worker.get()) { + worker->waitIdle(); + } + } + //reinitialize the cache and dataset + svc_.reinitCache(seed, length); + svc_.reinitDataset(); + //refresh workers + for (auto& worker : workers_) { + svc_.refreshMachine(worker->vm_); + } + //notify workers + reseeding_ = false; + cond_.notify_all(); + } +} \ No newline at end of file diff --git a/src/thread_pool.h b/src/thread_pool.h new file mode 100644 index 0000000..4f8510c --- /dev/null +++ b/src/thread_pool.h @@ -0,0 +1,76 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include "task_queue.h" +#include +#include +#include +#include +#include +#include + +namespace randomx { + + class Service; + class ServiceWorker; + + class ThreadPool : public httplib::TaskQueue { + public: + ThreadPool(Service& server, size_t n); + + ThreadPool(const ThreadPool&) = delete; + virtual ~ThreadPool(); + + virtual void enqueue(std::function fn) override; + + void reseed(ServiceWorker& self, const void* seed, size_t length); + + virtual void shutdown() override; + + const Service& getService() { + return svc_; + } + + private: + friend struct ServiceWorker; + + Service& svc_; + std::vector> threads_; + std::vector> workers_; + std::list> jobs_; + + bool shutdown_; + bool reseeding_; + + std::condition_variable cond_; + std::mutex mutex_; + }; + +} \ No newline at end of file diff --git a/src/utility.h b/src/utility.h new file mode 100644 index 0000000..922da89 --- /dev/null +++ b/src/utility.h @@ -0,0 +1,61 @@ +/* +Copyright (c) 2020, tevador + +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of the copyright holder nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND +ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED +WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ + +#pragma once + +#include +#include + +inline void readOption(const char* option, int argc, char** argv, bool& out) { + for (int i = 0; i < argc; ++i) { + if (strcmp(argv[i], option) == 0) { + out = true; + return; + } + } + out = false; +} + +inline void readIntOption(const char* option, int argc, char** argv, int& out, int defaultValue) { + for (int i = 0; i < argc - 1; ++i) { + if (strcmp(argv[i], option) == 0 && (out = atoi(argv[i + 1])) > 0) { + return; + } + } + out = defaultValue; +} + +inline void readStringOption(const char* option, int argc, char** argv, std::string& out, const char* defaultValue) { + for (int i = 0; i < argc - 1; ++i) { + if (strcmp(argv[i], option) == 0) { + out = argv[i + 1]; + return; + } + } + out = defaultValue; +}