diff --git a/httplib.h b/httplib.h index e50ad45..f3835ee 100644 --- a/httplib.h +++ b/httplib.h @@ -1582,6 +1582,9 @@ private: bool send_(Request &req, Response &res, Error &error); Result send_(Request &&req); +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + bool is_ssl_peer_could_be_closed(SSL *ssl) const; +#endif socket_t create_client_socket(Error &error) const; bool read_response_line(Stream &strm, const Request &req, Response &res) const; @@ -7415,6 +7418,14 @@ inline bool ClientImpl::send(Request &req, Response &res, Error &error) { return ret; } +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT +inline bool ClientImpl::is_ssl_peer_could_be_closed(SSL *ssl) const { + char buf[1]; + return !SSL_peek(ssl, buf, 1) && + SSL_get_error(ssl, 0) == SSL_ERROR_ZERO_RETURN; +} +#endif + inline bool ClientImpl::send_(Request &req, Response &res, Error &error) { { std::lock_guard guard(socket_mutex_); @@ -7426,6 +7437,15 @@ inline bool ClientImpl::send_(Request &req, Response &res, Error &error) { auto is_alive = false; if (socket_.is_open()) { is_alive = detail::is_socket_alive(socket_.sock); + +#ifdef CPPHTTPLIB_OPENSSL_SUPPORT + if (is_alive && is_ssl()) { + if (is_ssl_peer_could_be_closed(socket_.ssl)) { + is_alive = false; + } + } +#endif + if (!is_alive) { // Attempt to avoid sigpipe by shutting down nongracefully if it seems // like the other side has already closed the connection Also, there @@ -7922,9 +7942,7 @@ inline bool ClientImpl::process_request(Stream &strm, Request &req, if (is_ssl()) { auto is_proxy_enabled = !proxy_host_.empty() && proxy_port_ != -1; if (!is_proxy_enabled) { - char buf[1]; - if (SSL_peek(socket_.ssl, buf, 1) == 0 && - SSL_get_error(socket_.ssl, 0) == SSL_ERROR_ZERO_RETURN) { + if (is_ssl_peer_could_be_closed(socket_.ssl)) { error = Error::SSLPeerCouldBeClosed_; return false; }