diff options
author | Jack Lloyd <[email protected]> | 2017-10-03 14:28:35 -0400 |
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committer | Jack Lloyd <[email protected]> | 2017-10-03 14:28:35 -0400 |
commit | c7578d6724340bb0403012b8de5e1f52777050f8 (patch) | |
tree | 40f36ce1d6ec961c3f458deabcf2468ee9c35873 /src/lib/utils/http_util | |
parent | 26517eb98af4c3bb1faf38653ab55ae0956578eb (diff) | |
parent | 9f11110307c021560fb920447c45103b8423a7ae (diff) |
Merge GH #1232 Only require socket code if http_util is loaded
Diffstat (limited to 'src/lib/utils/http_util')
-rw-r--r-- | src/lib/utils/http_util/http_util.cpp | 1 | ||||
-rw-r--r-- | src/lib/utils/http_util/info.txt | 16 | ||||
-rw-r--r-- | src/lib/utils/http_util/socket.cpp | 289 | ||||
-rw-r--r-- | src/lib/utils/http_util/socket.h | 62 |
4 files changed, 367 insertions, 1 deletions
diff --git a/src/lib/utils/http_util/http_util.cpp b/src/lib/utils/http_util/http_util.cpp index 035176c17..8dcd8d55a 100644 --- a/src/lib/utils/http_util/http_util.cpp +++ b/src/lib/utils/http_util/http_util.cpp @@ -10,6 +10,7 @@ #include <botan/parsing.h> #include <botan/hex.h> #include <botan/internal/os_utils.h> +#include <botan/internal/socket.h> #include <botan/internal/stl_util.h> #include <sstream> diff --git a/src/lib/utils/http_util/info.txt b/src/lib/utils/http_util/info.txt index fe9fc3ea7..a6cbd902f 100644 --- a/src/lib/utils/http_util/info.txt +++ b/src/lib/utils/http_util/info.txt @@ -1,3 +1,17 @@ <defines> -HTTP_UTIL -> 20131128 +HTTP_UTIL -> 20171003 </defines> + +<header:public> +http_util.h +</header:public> + +<header:internal> +socket.h +</header:internal> + +<libs> +linux -> rt +mingw -> ws2_32 +windows -> ws2_32.lib +</libs> diff --git a/src/lib/utils/http_util/socket.cpp b/src/lib/utils/http_util/socket.cpp new file mode 100644 index 000000000..0d94c9a8e --- /dev/null +++ b/src/lib/utils/http_util/socket.cpp @@ -0,0 +1,289 @@ +/* +* OS and machine specific utility functions +* (C) 2015,2016,2017 Jack Lloyd +* (C) 2016 Daniel Neus +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#include <botan/internal/socket.h> +#include <botan/exceptn.h> +#include <chrono> + +#if defined(BOTAN_HAS_BOOST_ASIO) + /* + * We don't need serial port support anyway, and asking for it + * causes macro conflicts with Darwin's termios.h when this + * file is included in the amalgamation. GH #350 + */ + #define BOOST_ASIO_DISABLE_SERIAL_PORT + #include <boost/asio.hpp> +#endif + +#if defined(BOTAN_TARGET_OS_TYPE_IS_UNIX) + +#if !defined(BOTAN_HAS_BOOST_ASIO) + #include <sys/socket.h> + #include <netinet/in.h> + #include <netdb.h> + #include <string.h> + #include <unistd.h> +#endif + +#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS) + #include <botan/mem_ops.h> + + #define NOMINMAX 1 +#if !defined(BOTAN_HAS_BOOST_ASIO) + #include <winsock2.h> + #include <ws2tcpip.h> +#endif + #include <windows.h> +#endif + +namespace Botan { + +namespace { + +#if defined(BOTAN_HAS_BOOST_ASIO) + +class Asio_Socket final : public OS::Socket + { + public: + Asio_Socket(const std::string& hostname, const std::string& service) : + m_tcp(m_io) + { + boost::asio::ip::tcp::resolver resolver(m_io); + boost::asio::ip::tcp::resolver::query query(hostname, service); + boost::asio::connect(m_tcp, resolver.resolve(query)); + } + + void write(const uint8_t buf[], size_t len) override + { + boost::asio::write(m_tcp, boost::asio::buffer(buf, len)); + } + + size_t read(uint8_t buf[], size_t len) override + { + boost::system::error_code error; + size_t got = m_tcp.read_some(boost::asio::buffer(buf, len), error); + + if(error) + { + if(error == boost::asio::error::eof) + return 0; + throw boost::system::system_error(error); // Some other error. + } + + return got; + } + + private: + boost::asio::io_service m_io; + boost::asio::ip::tcp::socket m_tcp; + }; + +#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS) + +class Winsock_Socket final : public OS::Socket + { + public: + Winsock_Socket(const std::string& hostname, const std::string& service) + { + WSAData wsa_data; + WORD wsa_version = MAKEWORD(2, 2); + + if (::WSAStartup(wsa_version, &wsa_data) != 0) + { + throw Exception("WSAStartup() failed: " + std::to_string(WSAGetLastError())); + } + + if (LOBYTE(wsa_data.wVersion) != 2 || HIBYTE(wsa_data.wVersion) != 2) + { + ::WSACleanup(); + throw Exception("Could not find a usable version of Winsock.dll"); + } + + addrinfo hints; + ::memset(&hints, 0, sizeof(addrinfo)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + addrinfo* res; + + if(::getaddrinfo(hostname.c_str(), service.c_str(), &hints, &res) != 0) + { + throw Exception("Name resolution failed for " + hostname); + } + + for(addrinfo* rp = res; (m_socket == INVALID_SOCKET) && (rp != nullptr); rp = rp->ai_next) + { + m_socket = ::socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); + + // unsupported socket type? + if(m_socket == INVALID_SOCKET) + continue; + + if(::connect(m_socket, rp->ai_addr, rp->ai_addrlen) != 0) + { + ::closesocket(m_socket); + m_socket = INVALID_SOCKET; + continue; + } + } + + ::freeaddrinfo(res); + + if(m_socket == INVALID_SOCKET) + { + throw Exception("Connecting to " + hostname + + " for service " + service + " failed"); + } + } + + ~Winsock_Socket() + { + ::closesocket(m_socket); + m_socket = INVALID_SOCKET; + ::WSACleanup(); + } + + void write(const uint8_t buf[], size_t len) override + { + size_t sent_so_far = 0; + while(sent_so_far != len) + { + const size_t left = len - sent_so_far; + int sent = ::send(m_socket, + cast_uint8_ptr_to_char(buf + sent_so_far), + static_cast<int>(left), + 0); + + if(sent == SOCKET_ERROR) + throw Exception("Socket write failed with error " + + std::to_string(::WSAGetLastError())); + else + sent_so_far += static_cast<size_t>(sent); + } + } + + size_t read(uint8_t buf[], size_t len) override + { + int got = ::recv(m_socket, + cast_uint8_ptr_to_char(buf), + static_cast<int>(len), 0); + + if(got == SOCKET_ERROR) + throw Exception("Socket read failed with error " + + std::to_string(::WSAGetLastError())); + return static_cast<size_t>(got); + } + + private: + SOCKET m_socket = INVALID_SOCKET; + }; + +#elif defined(BOTAN_TARGET_OS_TYPE_IS_UNIX) +class BSD_Socket final : public OS::Socket + { + public: + BSD_Socket(const std::string& hostname, const std::string& service) + { + addrinfo hints; + ::memset(&hints, 0, sizeof(addrinfo)); + hints.ai_family = AF_UNSPEC; + hints.ai_socktype = SOCK_STREAM; + addrinfo* res; + + if(::getaddrinfo(hostname.c_str(), service.c_str(), &hints, &res) != 0) + { + throw Exception("Name resolution failed for " + hostname); + } + + m_fd = -1; + + for(addrinfo* rp = res; (m_fd < 0) && (rp != nullptr); rp = rp->ai_next) + { + m_fd = ::socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol); + + if(m_fd < 0) + { + // unsupported socket type? + continue; + } + + if(::connect(m_fd, rp->ai_addr, rp->ai_addrlen) != 0) + { + ::close(m_fd); + m_fd = -1; + continue; + } + } + + ::freeaddrinfo(res); + + if(m_fd < 0) + { + throw Exception("Connecting to " + hostname + + " for service " + service + " failed"); + } + } + + ~BSD_Socket() + { + ::close(m_fd); + m_fd = -1; + } + + void write(const uint8_t buf[], size_t len) override + { + size_t sent_so_far = 0; + while(sent_so_far != len) + { + const size_t left = len - sent_so_far; + ssize_t sent = ::write(m_fd, &buf[sent_so_far], left); + if(sent < 0) + throw Exception("Socket write failed with error '" + + std::string(::strerror(errno)) + "'"); + else + sent_so_far += static_cast<size_t>(sent); + } + } + + size_t read(uint8_t buf[], size_t len) override + { + ssize_t got = ::read(m_fd, buf, len); + + if(got < 0) + throw Exception("Socket read failed with error '" + + std::string(::strerror(errno)) + "'"); + return static_cast<size_t>(got); + } + + private: + int m_fd; + }; + +#endif + +} + +std::unique_ptr<OS::Socket> +OS::open_socket(const std::string& hostname, + const std::string& service) + { +#if defined(BOTAN_HAS_BOOST_ASIO) + return std::unique_ptr<OS::Socket>(new Asio_Socket(hostname, service)); + +#elif defined(BOTAN_TARGET_OS_TYPE_IS_WINDOWS) + return std::unique_ptr<OS::Socket>(new Winsock_Socket(hostname, service)); + +#elif defined(BOTAN_TARGET_OS_TYPE_IS_UNIX) + return std::unique_ptr<OS::Socket>(new BSD_Socket(hostname, service)); + +#else + // No sockets for you + return std::unique_ptr<Socket>(); +#endif + } + +} diff --git a/src/lib/utils/http_util/socket.h b/src/lib/utils/http_util/socket.h new file mode 100644 index 000000000..78c29f147 --- /dev/null +++ b/src/lib/utils/http_util/socket.h @@ -0,0 +1,62 @@ +/* +* OS specific utility functions +* (C) 2015,2016,2017 Jack Lloyd +* +* Botan is released under the Simplified BSD License (see license.txt) +*/ + +#ifndef BOTAN_SOCKET_H_ +#define BOTAN_SOCKET_H_ + +#include <botan/types.h> +#include <functional> + +namespace Botan { + +namespace OS { + +/* +* This header is internal (not installed) and these functions are not +* intended to be called by applications. However they are given public +* visibility (using BOTAN_TEST_API macro) for the tests. This also probably +* allows them to be overridden by the application on ELF systems, but +* this hasn't been tested. +*/ + + +/** +* A wrapper around a simple blocking TCP socket +*/ +class BOTAN_TEST_API Socket + { + public: + /** + * The socket will be closed upon destruction + */ + virtual ~Socket() {}; + + /** + * Write to the socket. Blocks until all bytes sent. + * Throws on error. + */ + virtual void write(const uint8_t buf[], size_t len) = 0; + + /** + * Reads up to len bytes, returns bytes written to buf. + * Returns 0 on EOF. Throws on error. + */ + virtual size_t read(uint8_t buf[], size_t len) = 0; + }; + +/** +* Open up a socket. Will throw on error. Returns null if sockets are +* not available on this platform. +*/ +std::unique_ptr<Socket> +BOTAN_TEST_API open_socket(const std::string& hostname, + const std::string& service); + +} // OS +} // Botan + +#endif |