mirror of
https://gitee.com/beecue/fastbee.git
synced 2025-12-19 17:35:54 +08:00
添加智能灯固件代码
This commit is contained in:
kerwincui
@@ -0,0 +1,10 @@
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# The following lines of boilerplate have to be in your project's CMakeLists
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# in this exact order for cmake to work correctly
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cmake_minimum_required(VERSION 3.5)
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# (Not part of the boilerplate)
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# This example uses an extra component for common functions such as Wi-Fi and Ethernet connection.
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set(EXTRA_COMPONENT_DIRS $ENV{IDF_PATH}/examples/common_components/protocol_examples_common)
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include($ENV{IDF_PATH}/tools/cmake/project.cmake)
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project(http2-request)
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@@ -0,0 +1,11 @@
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#
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# This is a project Makefile. It is assumed the directory this Makefile resides in is a
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# project subdirectory.
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#
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PROJECT_NAME := http2-request
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EXTRA_COMPONENT_DIRS = $(IDF_PATH)/examples/common_components/protocol_examples_common
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include $(IDF_PATH)/make/project.mk
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@@ -0,0 +1,6 @@
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# HTTP/2 Request Example
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Established HTTP/2 connection with https://http2.golang.org
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- Performs a GET on /clockstream
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- Performs a PUT on /ECHO
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@@ -0,0 +1,4 @@
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idf_component_register(SRCS "sh2lib.c"
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INCLUDE_DIRS .
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REQUIRES nghttp
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PRIV_REQUIRES lwip esp-tls)
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@@ -0,0 +1 @@
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COMPONENT_ADD_INCLUDEDIRS := .
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@@ -0,0 +1,369 @@
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// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <stdlib.h>
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#include <stdint.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <netdb.h>
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#include <esp_log.h>
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#include <http_parser.h>
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#include "sh2lib.h"
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static const char *TAG = "sh2lib";
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#define DBG_FRAME_SEND 1
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/*
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* The implementation of nghttp2_send_callback type. Here we write
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* |data| with size |length| to the network and return the number of
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* bytes actually written. See the documentation of
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* nghttp2_send_callback for the details.
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*/
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static ssize_t callback_send_inner(struct sh2lib_handle *hd, const uint8_t *data,
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size_t length)
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{
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int rv = esp_tls_conn_write(hd->http2_tls, data, length);
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if (rv <= 0) {
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if (rv == ESP_TLS_ERR_SSL_WANT_READ || rv == ESP_TLS_ERR_SSL_WANT_WRITE) {
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rv = NGHTTP2_ERR_WOULDBLOCK;
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} else {
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rv = NGHTTP2_ERR_CALLBACK_FAILURE;
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}
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}
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return rv;
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}
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static ssize_t callback_send(nghttp2_session *session, const uint8_t *data,
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size_t length, int flags, void *user_data)
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{
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int rv = 0;
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struct sh2lib_handle *hd = user_data;
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int copy_offset = 0;
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int pending_data = length;
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/* Send data in 1000 byte chunks */
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while (copy_offset != length) {
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int chunk_len = pending_data > 1000 ? 1000 : pending_data;
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int subrv = callback_send_inner(hd, data + copy_offset, chunk_len);
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if (subrv <= 0) {
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if (copy_offset == 0) {
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/* If no data is transferred, send the error code */
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rv = subrv;
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}
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break;
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}
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copy_offset += subrv;
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pending_data -= subrv;
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rv += subrv;
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}
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return rv;
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}
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/*
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* The implementation of nghttp2_recv_callback type. Here we read data
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* from the network and write them in |buf|. The capacity of |buf| is
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* |length| bytes. Returns the number of bytes stored in |buf|. See
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* the documentation of nghttp2_recv_callback for the details.
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*/
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static ssize_t callback_recv(nghttp2_session *session, uint8_t *buf,
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size_t length, int flags, void *user_data)
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{
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struct sh2lib_handle *hd = user_data;
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int rv;
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rv = esp_tls_conn_read(hd->http2_tls, (char *)buf, (int)length);
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if (rv < 0) {
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if (rv == ESP_TLS_ERR_SSL_WANT_READ || rv == ESP_TLS_ERR_SSL_WANT_WRITE) {
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rv = NGHTTP2_ERR_WOULDBLOCK;
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} else {
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rv = NGHTTP2_ERR_CALLBACK_FAILURE;
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}
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} else if (rv == 0) {
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rv = NGHTTP2_ERR_EOF;
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}
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return rv;
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}
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const char *sh2lib_frame_type_str(int type)
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{
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switch (type) {
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case NGHTTP2_HEADERS:
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return "HEADERS";
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break;
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case NGHTTP2_RST_STREAM:
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return "RST_STREAM";
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break;
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case NGHTTP2_GOAWAY:
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return "GOAWAY";
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break;
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case NGHTTP2_DATA:
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return "DATA";
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break;
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case NGHTTP2_SETTINGS:
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return "SETTINGS";
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break;
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case NGHTTP2_PUSH_PROMISE:
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return "PUSH_PROMISE";
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break;
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case NGHTTP2_PING:
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return "PING";
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break;
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default:
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return "other";
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break;
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}
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}
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static int callback_on_frame_send(nghttp2_session *session,
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const nghttp2_frame *frame, void *user_data)
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{
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ESP_LOGD(TAG, "[frame-send] frame type %s", sh2lib_frame_type_str(frame->hd.type));
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switch (frame->hd.type) {
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case NGHTTP2_HEADERS:
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if (nghttp2_session_get_stream_user_data(session, frame->hd.stream_id)) {
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ESP_LOGD(TAG, "[frame-send] C ----------------------------> S (HEADERS)");
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#if DBG_FRAME_SEND
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ESP_LOGD(TAG, "[frame-send] headers nv-len = %d", frame->headers.nvlen);
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const nghttp2_nv *nva = frame->headers.nva;
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size_t i;
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for (i = 0; i < frame->headers.nvlen; ++i) {
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ESP_LOGD(TAG, "[frame-send] %s : %s", nva[i].name, nva[i].value);
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}
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#endif
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}
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break;
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}
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return 0;
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}
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static int callback_on_frame_recv(nghttp2_session *session,
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const nghttp2_frame *frame, void *user_data)
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{
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ESP_LOGD(TAG, "[frame-recv][sid: %d] frame type %s", frame->hd.stream_id, sh2lib_frame_type_str(frame->hd.type));
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if (frame->hd.type != NGHTTP2_DATA) {
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return 0;
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}
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/* Subsequent processing only for data frame */
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sh2lib_frame_data_recv_cb_t data_recv_cb = nghttp2_session_get_stream_user_data(session, frame->hd.stream_id);
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if (data_recv_cb) {
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struct sh2lib_handle *h2 = user_data;
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(*data_recv_cb)(h2, NULL, 0, DATA_RECV_FRAME_COMPLETE);
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}
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return 0;
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}
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static int callback_on_stream_close(nghttp2_session *session, int32_t stream_id,
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uint32_t error_code, void *user_data)
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{
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ESP_LOGD(TAG, "[stream-close][sid %d]", stream_id);
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sh2lib_frame_data_recv_cb_t data_recv_cb = nghttp2_session_get_stream_user_data(session, stream_id);
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if (data_recv_cb) {
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struct sh2lib_handle *h2 = user_data;
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(*data_recv_cb)(h2, NULL, 0, DATA_RECV_RST_STREAM);
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}
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return 0;
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}
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static int callback_on_data_chunk_recv(nghttp2_session *session, uint8_t flags,
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int32_t stream_id, const uint8_t *data,
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size_t len, void *user_data)
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{
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sh2lib_frame_data_recv_cb_t data_recv_cb;
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ESP_LOGD(TAG, "[data-chunk][sid:%d]", stream_id);
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data_recv_cb = nghttp2_session_get_stream_user_data(session, stream_id);
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if (data_recv_cb) {
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ESP_LOGD(TAG, "[data-chunk] C <---------------------------- S (DATA chunk)"
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"%lu bytes",
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(unsigned long int)len);
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struct sh2lib_handle *h2 = user_data;
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(*data_recv_cb)(h2, (char *)data, len, 0);
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/* TODO: What to do with the return value: look for pause/abort */
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}
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return 0;
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}
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static int callback_on_header(nghttp2_session *session, const nghttp2_frame *frame,
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const uint8_t *name, size_t namelen, const uint8_t *value,
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size_t valuelen, uint8_t flags, void *user_data)
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{
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ESP_LOGD(TAG, "[hdr-recv][sid:%d] %s : %s", frame->hd.stream_id, name, value);
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return 0;
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}
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static int do_http2_connect(struct sh2lib_handle *hd)
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{
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int ret;
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nghttp2_session_callbacks *callbacks;
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nghttp2_session_callbacks_new(&callbacks);
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nghttp2_session_callbacks_set_send_callback(callbacks, callback_send);
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nghttp2_session_callbacks_set_recv_callback(callbacks, callback_recv);
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nghttp2_session_callbacks_set_on_frame_send_callback(callbacks, callback_on_frame_send);
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nghttp2_session_callbacks_set_on_frame_recv_callback(callbacks, callback_on_frame_recv);
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nghttp2_session_callbacks_set_on_stream_close_callback(callbacks, callback_on_stream_close);
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nghttp2_session_callbacks_set_on_data_chunk_recv_callback(callbacks, callback_on_data_chunk_recv);
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nghttp2_session_callbacks_set_on_header_callback(callbacks, callback_on_header);
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ret = nghttp2_session_client_new(&hd->http2_sess, callbacks, hd);
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if (ret != 0) {
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ESP_LOGE(TAG, "[sh2-connect] New http2 session failed");
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nghttp2_session_callbacks_del(callbacks);
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return -1;
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}
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nghttp2_session_callbacks_del(callbacks);
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/* Create the SETTINGS frame */
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ret = nghttp2_submit_settings(hd->http2_sess, NGHTTP2_FLAG_NONE, NULL, 0);
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if (ret != 0) {
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ESP_LOGE(TAG, "[sh2-connect] Submit settings failed");
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return -1;
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}
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return 0;
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}
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int sh2lib_connect(struct sh2lib_handle *hd, const char *uri)
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{
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memset(hd, 0, sizeof(*hd));
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const char *proto[] = {"h2", NULL};
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esp_tls_cfg_t tls_cfg = {
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.alpn_protos = proto,
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.non_block = true,
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.timeout_ms = 10 * 1000,
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};
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if ((hd->http2_tls = esp_tls_conn_http_new(uri, &tls_cfg)) == NULL) {
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ESP_LOGE(TAG, "[sh2-connect] esp-tls connection failed");
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goto error;
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}
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struct http_parser_url u;
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http_parser_url_init(&u);
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http_parser_parse_url(uri, strlen(uri), 0, &u);
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hd->hostname = strndup(&uri[u.field_data[UF_HOST].off], u.field_data[UF_HOST].len);
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/* HTTP/2 Connection */
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if (do_http2_connect(hd) != 0) {
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ESP_LOGE(TAG, "[sh2-connect] HTTP2 Connection failed with %s", uri);
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goto error;
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}
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return 0;
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error:
|
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sh2lib_free(hd);
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return -1;
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}
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void sh2lib_free(struct sh2lib_handle *hd)
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{
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if (hd->http2_sess) {
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nghttp2_session_del(hd->http2_sess);
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hd->http2_sess = NULL;
|
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}
|
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if (hd->http2_tls) {
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esp_tls_conn_delete(hd->http2_tls);
|
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hd->http2_tls = NULL;
|
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}
|
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if (hd->hostname) {
|
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free(hd->hostname);
|
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hd->hostname = NULL;
|
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}
|
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}
|
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|
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int sh2lib_execute(struct sh2lib_handle *hd)
|
||||
{
|
||||
int ret;
|
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ret = nghttp2_session_send(hd->http2_sess);
|
||||
if (ret != 0) {
|
||||
ESP_LOGE(TAG, "[sh2-execute] HTTP2 session send failed %d", ret);
|
||||
return -1;
|
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}
|
||||
|
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ret = nghttp2_session_recv(hd->http2_sess);
|
||||
if (ret != 0) {
|
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ESP_LOGE(TAG, "[sh2-execute] HTTP2 session recv failed %d", ret);
|
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return -1;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int sh2lib_do_get_with_nv(struct sh2lib_handle *hd, const nghttp2_nv *nva, size_t nvlen, sh2lib_frame_data_recv_cb_t recv_cb)
|
||||
{
|
||||
int ret = nghttp2_submit_request(hd->http2_sess, NULL, nva, nvlen, NULL, recv_cb);
|
||||
if (ret < 0) {
|
||||
ESP_LOGE(TAG, "[sh2-do-get] HEADERS call failed");
|
||||
return -1;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int sh2lib_do_get(struct sh2lib_handle *hd, const char *path, sh2lib_frame_data_recv_cb_t recv_cb)
|
||||
{
|
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const nghttp2_nv nva[] = { SH2LIB_MAKE_NV(":method", "GET"),
|
||||
SH2LIB_MAKE_NV(":scheme", "https"),
|
||||
SH2LIB_MAKE_NV(":authority", hd->hostname),
|
||||
SH2LIB_MAKE_NV(":path", path),
|
||||
};
|
||||
return sh2lib_do_get_with_nv(hd, nva, sizeof(nva) / sizeof(nva[0]), recv_cb);
|
||||
}
|
||||
|
||||
ssize_t sh2lib_data_provider_cb(nghttp2_session *session, int32_t stream_id, uint8_t *buf,
|
||||
size_t length, uint32_t *data_flags,
|
||||
nghttp2_data_source *source, void *user_data)
|
||||
{
|
||||
struct sh2lib_handle *h2 = user_data;
|
||||
sh2lib_putpost_data_cb_t data_cb = source->ptr;
|
||||
return (*data_cb)(h2, (char *)buf, length, data_flags);
|
||||
}
|
||||
|
||||
int sh2lib_do_putpost_with_nv(struct sh2lib_handle *hd, const nghttp2_nv *nva, size_t nvlen,
|
||||
sh2lib_putpost_data_cb_t send_cb,
|
||||
sh2lib_frame_data_recv_cb_t recv_cb)
|
||||
{
|
||||
|
||||
nghttp2_data_provider sh2lib_data_provider;
|
||||
sh2lib_data_provider.read_callback = sh2lib_data_provider_cb;
|
||||
sh2lib_data_provider.source.ptr = send_cb;
|
||||
int ret = nghttp2_submit_request(hd->http2_sess, NULL, nva, nvlen, &sh2lib_data_provider, recv_cb);
|
||||
if (ret < 0) {
|
||||
ESP_LOGE(TAG, "[sh2-do-putpost] HEADERS call failed");
|
||||
return -1;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
int sh2lib_do_post(struct sh2lib_handle *hd, const char *path,
|
||||
sh2lib_putpost_data_cb_t send_cb,
|
||||
sh2lib_frame_data_recv_cb_t recv_cb)
|
||||
{
|
||||
const nghttp2_nv nva[] = { SH2LIB_MAKE_NV(":method", "POST"),
|
||||
SH2LIB_MAKE_NV(":scheme", "https"),
|
||||
SH2LIB_MAKE_NV(":authority", hd->hostname),
|
||||
SH2LIB_MAKE_NV(":path", path),
|
||||
};
|
||||
return sh2lib_do_putpost_with_nv(hd, nva, sizeof(nva) / sizeof(nva[0]), send_cb, recv_cb);
|
||||
}
|
||||
|
||||
int sh2lib_do_put(struct sh2lib_handle *hd, const char *path,
|
||||
sh2lib_putpost_data_cb_t send_cb,
|
||||
sh2lib_frame_data_recv_cb_t recv_cb)
|
||||
{
|
||||
const nghttp2_nv nva[] = { SH2LIB_MAKE_NV(":method", "PUT"),
|
||||
SH2LIB_MAKE_NV(":scheme", "https"),
|
||||
SH2LIB_MAKE_NV(":authority", hd->hostname),
|
||||
SH2LIB_MAKE_NV(":path", path),
|
||||
};
|
||||
return sh2lib_do_putpost_with_nv(hd, nva, sizeof(nva) / sizeof(nva[0]), send_cb, recv_cb);
|
||||
}
|
||||
@@ -0,0 +1,262 @@
|
||||
// Copyright 2017 Espressif Systems (Shanghai) PTE LTD
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
#ifndef __ESP_EXAMPLE_SH2_LIB_H_
|
||||
#define __ESP_EXAMPLE_SH2_LIB_H_
|
||||
|
||||
#include "esp_tls.h"
|
||||
#include <nghttp2/nghttp2.h>
|
||||
|
||||
/*
|
||||
* This is a thin API wrapper over nghttp2 that offers simplified APIs for usage
|
||||
* in the application. The intention of this wrapper is to act as a stepping
|
||||
* stone to quickly get started with using the HTTP/2 client. Since the focus is
|
||||
* on simplicity, not all the features of HTTP/2 are supported through this
|
||||
* wrapper. Once you are fairly comfortable with nghttp2, feel free to directly
|
||||
* use nghttp2 APIs or make changes to sh2lib.c for realising your objectives.
|
||||
*
|
||||
* TODO:
|
||||
* - Allowing to query response code, content-type etc in the receive callback
|
||||
* - A simple function for per-stream header callback
|
||||
*/
|
||||
/**
|
||||
* @brief Handle for working with sh2lib APIs
|
||||
*/
|
||||
struct sh2lib_handle {
|
||||
nghttp2_session *http2_sess; /*!< Pointer to the HTTP2 session handle */
|
||||
char *hostname; /*!< The hostname we are connected to */
|
||||
struct esp_tls *http2_tls; /*!< Pointer to the TLS session handle */
|
||||
};
|
||||
|
||||
/** Flag indicating receive stream is reset */
|
||||
#define DATA_RECV_RST_STREAM 1
|
||||
/** Flag indicating frame is completely received */
|
||||
#define DATA_RECV_FRAME_COMPLETE 2
|
||||
|
||||
/**
|
||||
* @brief Function Prototype for data receive callback
|
||||
*
|
||||
* This function gets called whenever data is received on any stream. The
|
||||
* function is also called for indicating events like frame receive complete, or
|
||||
* end of stream. The function may get called multiple times as long as data is
|
||||
* received on the stream.
|
||||
*
|
||||
* @param[in] handle Pointer to the sh2lib handle.
|
||||
* @param[in] data Pointer to a buffer that contains the data received.
|
||||
* @param[in] len The length of valid data stored at the 'data' pointer.
|
||||
* @param[in] flags Flags indicating whether the stream is reset (DATA_RECV_RST_STREAM) or
|
||||
* this particularly frame is completely received
|
||||
* DATA_RECV_FRAME_COMPLETE).
|
||||
*
|
||||
* @return The function should return 0
|
||||
*/
|
||||
typedef int (*sh2lib_frame_data_recv_cb_t)(struct sh2lib_handle *handle, const char *data, size_t len, int flags);
|
||||
|
||||
/**
|
||||
* @brief Function Prototype for callback to send data in PUT/POST
|
||||
*
|
||||
* This function gets called whenever nghttp2 wishes to send data, like for
|
||||
* PUT/POST requests to the server. The function keeps getting called until this
|
||||
* function sets the flag NGHTTP2_DATA_FLAG_EOF to indicate end of data.
|
||||
*
|
||||
* @param[in] handle Pointer to the sh2lib handle.
|
||||
* @param[out] data Pointer to a buffer that should contain the data to send.
|
||||
* @param[in] len The maximum length of data that can be sent out by this function.
|
||||
* @param[out] data_flags Pointer to the data flags. The NGHTTP2_DATA_FLAG_EOF
|
||||
* should be set in the data flags to indicate end of new data.
|
||||
*
|
||||
* @return The function should return the number of valid bytes stored in the
|
||||
* data pointer
|
||||
*/
|
||||
typedef int (*sh2lib_putpost_data_cb_t)(struct sh2lib_handle *handle, char *data, size_t len, uint32_t *data_flags);
|
||||
|
||||
/**
|
||||
* @brief Connect to a URI using HTTP/2
|
||||
*
|
||||
* This API opens an HTTP/2 connection with the provided URI. If successful, the
|
||||
* hd pointer is populated with a valid handle for subsequent communication.
|
||||
*
|
||||
* Only 'https' URIs are supported.
|
||||
*
|
||||
* @param[out] hd Pointer to a variable of the type 'struct sh2lib_handle'.
|
||||
* @param[in] uri Pointer to the URI that should be connected to.
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK if the connection was successful
|
||||
* - ESP_FAIL if the connection fails
|
||||
*/
|
||||
int sh2lib_connect(struct sh2lib_handle *hd, const char *uri);
|
||||
|
||||
/**
|
||||
* @brief Free a sh2lib handle
|
||||
*
|
||||
* This API frees-up an sh2lib handle, thus closing any open connections that
|
||||
* may be associated with this handle, and freeing up any resources.
|
||||
*
|
||||
* @param[in] hd Pointer to a variable of the type 'struct sh2lib_handle'.
|
||||
*
|
||||
*/
|
||||
void sh2lib_free(struct sh2lib_handle *hd);
|
||||
|
||||
/**
|
||||
* @brief Setup an HTTP GET request stream
|
||||
*
|
||||
* This API sets up an HTTP GET request to be sent out to the server. A new
|
||||
* stream is created for handling the request. Once the request is setup, the
|
||||
* API sh2lib_execute() must be called to actually perform the socket I/O with
|
||||
* the server.
|
||||
*
|
||||
* @param[in] hd Pointer to a variable of the type 'struct sh2lib_handle'.
|
||||
* @param[in] path Pointer to the string that contains the resource to
|
||||
* perform the HTTP GET operation on (for example, /users).
|
||||
* @param[in] recv_cb The callback function that should be called for
|
||||
* processing the request's response
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK if request setup is successful
|
||||
* - ESP_FAIL if the request setup fails
|
||||
*/
|
||||
int sh2lib_do_get(struct sh2lib_handle *hd, const char *path, sh2lib_frame_data_recv_cb_t recv_cb);
|
||||
|
||||
/**
|
||||
* @brief Setup an HTTP POST request stream
|
||||
*
|
||||
* This API sets up an HTTP POST request to be sent out to the server. A new
|
||||
* stream is created for handling the request. Once the request is setup, the
|
||||
* API sh2lib_execute() must be called to actually perform the socket I/O with
|
||||
* the server.
|
||||
*
|
||||
* @param[in] hd Pointer to a variable of the type 'struct sh2lib_handle'.
|
||||
* @param[in] path Pointer to the string that contains the resource to
|
||||
* perform the HTTP POST operation on (for example, /users).
|
||||
* @param[in] send_cb The callback function that should be called for
|
||||
* sending data as part of this request.
|
||||
* @param[in] recv_cb The callback function that should be called for
|
||||
* processing the request's response
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK if request setup is successful
|
||||
* - ESP_FAIL if the request setup fails
|
||||
*/
|
||||
int sh2lib_do_post(struct sh2lib_handle *hd, const char *path,
|
||||
sh2lib_putpost_data_cb_t send_cb,
|
||||
sh2lib_frame_data_recv_cb_t recv_cb);
|
||||
|
||||
/**
|
||||
* @brief Setup an HTTP PUT request stream
|
||||
*
|
||||
* This API sets up an HTTP PUT request to be sent out to the server. A new
|
||||
* stream is created for handling the request. Once the request is setup, the
|
||||
* API sh2lib_execute() must be called to actually perform the socket I/O with
|
||||
* the server.
|
||||
*
|
||||
* @param[in] hd Pointer to a variable of the type 'struct sh2lib_handle'.
|
||||
* @param[in] path Pointer to the string that contains the resource to
|
||||
* perform the HTTP PUT operation on (for example, /users).
|
||||
* @param[in] send_cb The callback function that should be called for
|
||||
* sending data as part of this request.
|
||||
* @param[in] recv_cb The callback function that should be called for
|
||||
* processing the request's response
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK if request setup is successful
|
||||
* - ESP_FAIL if the request setup fails
|
||||
*/
|
||||
int sh2lib_do_put(struct sh2lib_handle *hd, const char *path,
|
||||
sh2lib_putpost_data_cb_t send_cb,
|
||||
sh2lib_frame_data_recv_cb_t recv_cb);
|
||||
|
||||
/**
|
||||
* @brief Execute send/receive on an HTTP/2 connection
|
||||
*
|
||||
* While the API sh2lib_do_get(), sh2lib_do_post() setup the requests to be
|
||||
* initiated with the server, this API performs the actual data send/receive
|
||||
* operations on the HTTP/2 connection. The callback functions are accordingly
|
||||
* called during the processing of these requests.
|
||||
*
|
||||
* @param[in] hd Pointer to a variable of the type 'struct sh2lib_handle'
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK if the connection was successful
|
||||
* - ESP_FAIL if the connection fails
|
||||
*/
|
||||
int sh2lib_execute(struct sh2lib_handle *hd);
|
||||
|
||||
#define SH2LIB_MAKE_NV(NAME, VALUE) \
|
||||
{ \
|
||||
(uint8_t *)NAME, (uint8_t *)VALUE, strlen(NAME), strlen(VALUE), \
|
||||
NGHTTP2_NV_FLAG_NONE \
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief Setup an HTTP GET request stream with custom name-value pairs
|
||||
*
|
||||
* For a simpler version of the API, please refer to sh2lib_do_get().
|
||||
*
|
||||
* This API sets up an HTTP GET request to be sent out to the server. A new
|
||||
* stream is created for handling the request. Once the request is setup, the
|
||||
* API sh2lib_execute() must be called to actually perform the socket I/O with
|
||||
* the server.
|
||||
*
|
||||
* Please note that the following name value pairs MUST be a part of the request
|
||||
* - name:value
|
||||
* - ":method":"GET"
|
||||
* - ":scheme":"https"
|
||||
* - ":path":<the-path-for-the-GET-operation> (for example, /users)
|
||||
*
|
||||
* @param[in] hd Pointer to a variable of the type 'struct sh2lib_handle'.
|
||||
* @param[in] nva An array of name-value pairs that should be part of the request.
|
||||
* @param[in] nvlen The number of elements in the array pointed to by 'nva'.
|
||||
* @param[in] recv_cb The callback function that should be called for
|
||||
* processing the request's response
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK if request setup is successful
|
||||
* - ESP_FAIL if the request setup fails
|
||||
*/
|
||||
int sh2lib_do_get_with_nv(struct sh2lib_handle *hd, const nghttp2_nv *nva, size_t nvlen, sh2lib_frame_data_recv_cb_t recv_cb);
|
||||
|
||||
/**
|
||||
* @brief Setup an HTTP PUT/POST request stream with custom name-value pairs
|
||||
*
|
||||
* For a simpler version of the API, please refer to sh2lib_do_put() or
|
||||
* sh2lib_do_post().
|
||||
*
|
||||
* This API sets up an HTTP PUT/POST request to be sent out to the server. A new
|
||||
* stream is created for handling the request. Once the request is setup, the
|
||||
* API sh2lib_execute() must be called to actually perform the socket I/O with
|
||||
* the server.
|
||||
*
|
||||
* Please note that the following name value pairs MUST be a part of the request
|
||||
* - name:value
|
||||
* - ":method":"PUT" (or POST)
|
||||
* - ":scheme":"https"
|
||||
* - ":path":<the-path-for-the-PUT-operation> (for example, /users)
|
||||
*
|
||||
* @param[in] hd Pointer to a variable of the type 'struct sh2lib_handle'.
|
||||
* @param[in] nva An array of name-value pairs that should be part of the request.
|
||||
* @param[in] nvlen The number of elements in the array pointed to by 'nva'.
|
||||
* @param[in] send_cb The callback function that should be called for
|
||||
* sending data as part of this request.
|
||||
* @param[in] recv_cb The callback function that should be called for
|
||||
* processing the request's response
|
||||
*
|
||||
* @return
|
||||
* - ESP_OK if request setup is successful
|
||||
* - ESP_FAIL if the request setup fails
|
||||
*/
|
||||
int sh2lib_do_putpost_with_nv(struct sh2lib_handle *hd, const nghttp2_nv *nva, size_t nvlen,
|
||||
sh2lib_putpost_data_cb_t send_cb,
|
||||
sh2lib_frame_data_recv_cb_t recv_cb);
|
||||
|
||||
#endif /* ! __ESP_EXAMPLE_SH2_LIB_H_ */
|
||||
@@ -0,0 +1,2 @@
|
||||
idf_component_register(SRCS "http2_request_example_main.c"
|
||||
INCLUDE_DIRS ".")
|
||||
@@ -0,0 +1,144 @@
|
||||
/* HTTP2 GET Example using nghttp2
|
||||
|
||||
Contacts http2.golang.org and executes the GET/PUT requests. A thin API
|
||||
wrapper on top of nghttp2, to properly demonstrate the interactions.
|
||||
|
||||
This example code is in the Public Domain (or CC0 licensed, at your option.)
|
||||
|
||||
Unless required by applicable law or agreed to in writing, this
|
||||
software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
|
||||
CONDITIONS OF ANY KIND, either express or implied.
|
||||
|
||||
*/
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/time.h>
|
||||
#include "freertos/FreeRTOS.h"
|
||||
#include "freertos/task.h"
|
||||
#include "esp_wifi.h"
|
||||
#include "esp_event.h"
|
||||
#include "lwip/apps/sntp.h"
|
||||
#include "esp_system.h"
|
||||
#include "nvs_flash.h"
|
||||
#include "protocol_examples_common.h"
|
||||
#include "esp_netif.h"
|
||||
|
||||
#include "sh2lib.h"
|
||||
|
||||
|
||||
/* The HTTP/2 server to connect to */
|
||||
#define HTTP2_SERVER_URI "https://http2.golang.org"
|
||||
/* A GET request that keeps streaming current time every second */
|
||||
#define HTTP2_STREAMING_GET_PATH "/clockstream"
|
||||
/* A PUT request that echoes whatever we had sent to it */
|
||||
#define HTTP2_PUT_PATH "/ECHO"
|
||||
|
||||
|
||||
int handle_get_response(struct sh2lib_handle *handle, const char *data, size_t len, int flags)
|
||||
{
|
||||
if (len) {
|
||||
printf("[get-response] %.*s\n", len, data);
|
||||
}
|
||||
if (flags == DATA_RECV_FRAME_COMPLETE) {
|
||||
printf("[get-response] Frame fully received\n");
|
||||
}
|
||||
if (flags == DATA_RECV_RST_STREAM) {
|
||||
printf("[get-response] Stream Closed\n");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int handle_echo_response(struct sh2lib_handle *handle, const char *data, size_t len, int flags)
|
||||
{
|
||||
if (len) {
|
||||
printf("[echo-response] %.*s\n", len, data);
|
||||
}
|
||||
if (flags == DATA_RECV_FRAME_COMPLETE) {
|
||||
printf("[echo-response] Frame fully received\n");
|
||||
}
|
||||
if (flags == DATA_RECV_RST_STREAM) {
|
||||
printf("[echo-response] Stream Closed\n");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int send_put_data(struct sh2lib_handle *handle, char *buf, size_t length, uint32_t *data_flags)
|
||||
{
|
||||
#define DATA_TO_SEND "Hello World"
|
||||
int copylen = strlen(DATA_TO_SEND);
|
||||
if (copylen < length) {
|
||||
printf("[data-prvd] Sending %d bytes\n", copylen);
|
||||
memcpy(buf, DATA_TO_SEND, copylen);
|
||||
} else {
|
||||
copylen = 0;
|
||||
}
|
||||
|
||||
(*data_flags) |= NGHTTP2_DATA_FLAG_EOF;
|
||||
return copylen;
|
||||
}
|
||||
|
||||
static void set_time(void)
|
||||
{
|
||||
struct timeval tv = {
|
||||
.tv_sec = 1509449941,
|
||||
};
|
||||
struct timezone tz = {
|
||||
0, 0
|
||||
};
|
||||
settimeofday(&tv, &tz);
|
||||
|
||||
/* Start SNTP service */
|
||||
sntp_setoperatingmode(SNTP_OPMODE_POLL);
|
||||
sntp_init();
|
||||
}
|
||||
|
||||
static void http2_task(void *args)
|
||||
{
|
||||
/* Set current time: proper system time is required for TLS based
|
||||
* certificate verification.
|
||||
*/
|
||||
set_time();
|
||||
|
||||
/* HTTP2: one connection multiple requests. Do the TLS/TCP connection first */
|
||||
printf("Connecting to server\n");
|
||||
struct sh2lib_handle hd;
|
||||
if (sh2lib_connect(&hd, HTTP2_SERVER_URI) != 0) {
|
||||
printf("Failed to connect\n");
|
||||
vTaskDelete(NULL);
|
||||
return;
|
||||
}
|
||||
printf("Connection done\n");
|
||||
|
||||
/* HTTP GET */
|
||||
sh2lib_do_get(&hd, HTTP2_STREAMING_GET_PATH, handle_get_response);
|
||||
|
||||
/* HTTP PUT */
|
||||
sh2lib_do_put(&hd, HTTP2_PUT_PATH, send_put_data, handle_echo_response);
|
||||
|
||||
while (1) {
|
||||
/* Process HTTP2 send/receive */
|
||||
if (sh2lib_execute(&hd) < 0) {
|
||||
printf("Error in send/receive\n");
|
||||
break;
|
||||
}
|
||||
vTaskDelay(2);
|
||||
}
|
||||
|
||||
sh2lib_free(&hd);
|
||||
vTaskDelete(NULL);
|
||||
}
|
||||
|
||||
void app_main(void)
|
||||
{
|
||||
ESP_ERROR_CHECK( nvs_flash_init() );
|
||||
ESP_ERROR_CHECK(esp_netif_init());
|
||||
ESP_ERROR_CHECK(esp_event_loop_create_default());
|
||||
|
||||
/* This helper function configures Wi-Fi or Ethernet, as selected in menuconfig.
|
||||
* Read "Establishing Wi-Fi or Ethernet Connection" section in
|
||||
* examples/protocols/README.md for more information about this function.
|
||||
*/
|
||||
ESP_ERROR_CHECK(example_connect());
|
||||
|
||||
xTaskCreate(&http2_task, "http2_task", (1024 * 32), NULL, 5, NULL);
|
||||
}
|
||||
Reference in New Issue
Block a user