diff options
Diffstat (limited to 'main')
| -rw-r--r-- | main/main.c | 276 |
1 files changed, 52 insertions, 224 deletions
diff --git a/main/main.c b/main/main.c index 1c532b8..1cc9e60 100644 --- a/main/main.c +++ b/main/main.c @@ -1,249 +1,77 @@ -/* Simple HTTP Server Example - - 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 <sys/param.h> -#include "freertos/FreeRTOS.h" -#include "freertos/task.h" -#include "esp_system.h" +#include "esp_event.h" #include "esp_log.h" #include "esp_netif.h" -#include "esp_event.h" -#include "protocol_examples_common.h" +#include "esp_system.h" +#include "freertos/FreeRTOS.h" +#include "freertos/task.h" #include "nvs.h" #include "nvs_flash.h" +#include "protocol_examples_common.h" #include <esp_http_server.h> -static const char *TAG="APP"; - -/* An HTTP GET handler */ -esp_err_t hello_get_handler(httpd_req_t *req) -{ - char* buf; - size_t buf_len; - - /* Get header value string length and allocate memory for length + 1, - * extra byte for null termination */ - buf_len = httpd_req_get_hdr_value_len(req, "Host") + 1; - if (buf_len > 1) { - buf = malloc(buf_len); - /* Copy null terminated value string into buffer */ - if (httpd_req_get_hdr_value_str(req, "Host", buf, buf_len) == ESP_OK) { - ESP_LOGI(TAG, "Found header => Host: %s", buf); - } - free(buf); - } - - buf_len = httpd_req_get_hdr_value_len(req, "Test-Header-2") + 1; - if (buf_len > 1) { - buf = malloc(buf_len); - if (httpd_req_get_hdr_value_str(req, "Test-Header-2", buf, buf_len) == ESP_OK) { - ESP_LOGI(TAG, "Found header => Test-Header-2: %s", buf); - } - free(buf); - } - - buf_len = httpd_req_get_hdr_value_len(req, "Test-Header-1") + 1; - if (buf_len > 1) { - buf = malloc(buf_len); - if (httpd_req_get_hdr_value_str(req, "Test-Header-1", buf, buf_len) == ESP_OK) { - ESP_LOGI(TAG, "Found header => Test-Header-1: %s", buf); - } - free(buf); - } - - /* Read URL query string length and allocate memory for length + 1, - * extra byte for null termination */ - buf_len = httpd_req_get_url_query_len(req) + 1; - if (buf_len > 1) { - buf = malloc(buf_len); - if (httpd_req_get_url_query_str(req, buf, buf_len) == ESP_OK) { - ESP_LOGI(TAG, "Found URL query => %s", buf); - char param[32]; - /* Get value of expected key from query string */ - if (httpd_query_key_value(buf, "query1", param, sizeof(param)) == ESP_OK) { - ESP_LOGI(TAG, "Found URL query parameter => query1=%s", param); - } - if (httpd_query_key_value(buf, "query3", param, sizeof(param)) == ESP_OK) { - ESP_LOGI(TAG, "Found URL query parameter => query3=%s", param); - } - if (httpd_query_key_value(buf, "query2", param, sizeof(param)) == ESP_OK) { - ESP_LOGI(TAG, "Found URL query parameter => query2=%s", param); - } - } - free(buf); - } - - /* Set some custom headers */ - httpd_resp_set_hdr(req, "Custom-Header-1", "Custom-Value-1"); - httpd_resp_set_hdr(req, "Custom-Header-2", "Custom-Value-2"); - - /* Send response with custom headers and body set as the - * string passed in user context*/ - const char* resp_str = (const char*) req->user_ctx; - httpd_resp_send(req, resp_str, strlen(resp_str)); - - /* After sending the HTTP response the old HTTP request - * headers are lost. Check if HTTP request headers can be read now. */ - if (httpd_req_get_hdr_value_len(req, "Host") == 0) { - ESP_LOGI(TAG, "Request headers lost"); - } - return ESP_OK; -} +static const char *TAG = "rgbstrip"; +int color[3]; +static httpd_handle_t server = NULL; -httpd_uri_t hello = { - .uri = "/hello", - .method = HTTP_GET, - .handler = hello_get_handler, - /* Let's pass response string in user - * context to demonstrate it's usage */ - .user_ctx = "Hello World!" -}; - -/* An HTTP POST handler */ -esp_err_t echo_post_handler(httpd_req_t *req) -{ - char buf[100]; - int ret, remaining = req->content_len; - - while (remaining > 0) { - /* Read the data for the request */ - if ((ret = httpd_req_recv(req, buf, - MIN(remaining, sizeof(buf)))) <= 0) { - if (ret == HTTPD_SOCK_ERR_TIMEOUT) { - /* Retry receiving if timeout occurred */ - continue; - } - return ESP_FAIL; - } - - /* Send back the same data */ - httpd_resp_send_chunk(req, buf, ret); - remaining -= ret; - - /* Log data received */ - ESP_LOGI(TAG, "=========== RECEIVED DATA =========="); - ESP_LOGI(TAG, "%.*s", ret, buf); - ESP_LOGI(TAG, "===================================="); - } - - // End response - httpd_resp_send_chunk(req, NULL, 0); - return ESP_OK; -} +esp_err_t hello_get_handler(httpd_req_t *req) { + const char *resp_str = "Hello, world!\n"; + httpd_resp_send(req, resp_str, strlen(resp_str)); -httpd_uri_t echo = { - .uri = "/echo", - .method = HTTP_POST, - .handler = echo_post_handler, - .user_ctx = NULL -}; - -/* An HTTP PUT handler. This demonstrates realtime - * registration and deregistration of URI handlers - */ -esp_err_t ctrl_put_handler(httpd_req_t *req) -{ - char buf; - int ret; - - if ((ret = httpd_req_recv(req, &buf, 1)) <= 0) { - if (ret == HTTPD_SOCK_ERR_TIMEOUT) { - httpd_resp_send_408(req); - } - return ESP_FAIL; - } - - if (buf == '0') { - /* Handler can be unregistered using the uri string */ - ESP_LOGI(TAG, "Unregistering /hello and /echo URIs"); - httpd_unregister_uri(req->handle, "/hello"); - httpd_unregister_uri(req->handle, "/echo"); - } - else { - ESP_LOGI(TAG, "Registering /hello and /echo URIs"); - httpd_register_uri_handler(req->handle, &hello); - httpd_register_uri_handler(req->handle, &echo); - } - - /* Respond with empty body */ - httpd_resp_send(req, NULL, 0); - return ESP_OK; + return ESP_OK; } -httpd_uri_t ctrl = { - .uri = "/ctrl", - .method = HTTP_PUT, - .handler = ctrl_put_handler, - .user_ctx = NULL -}; - -httpd_handle_t start_webserver(void) -{ - httpd_handle_t server = NULL; - httpd_config_t config = HTTPD_DEFAULT_CONFIG(); - - // Start the httpd server - ESP_LOGI(TAG, "Starting server on port: '%d'", config.server_port); - if (httpd_start(&server, &config) == ESP_OK) { - // Set URI handlers - ESP_LOGI(TAG, "Registering URI handlers"); - httpd_register_uri_handler(server, &hello); - httpd_register_uri_handler(server, &echo); - httpd_register_uri_handler(server, &ctrl); - return server; - } - - ESP_LOGI(TAG, "Error starting server!"); - return NULL; -} +httpd_uri_t hello = {.uri = "/", .method = HTTP_GET, .handler = hello_get_handler}; -void stop_webserver(httpd_handle_t server) -{ - // Stop the httpd server - httpd_stop(server); -} +httpd_handle_t start_webserver(void) { + httpd_handle_t server = NULL; + httpd_config_t config = HTTPD_DEFAULT_CONFIG(); -static httpd_handle_t server = NULL; + ESP_LOGI(TAG, "Starting server on port: '%d'", config.server_port); + if (httpd_start(&server, &config) == ESP_OK) { + ESP_LOGI(TAG, "Registering URI handlers"); + httpd_register_uri_handler(server, &hello); + return server; + } -static void disconnect_handler(void* arg, esp_event_base_t event_base, - int32_t event_id, void* event_data) -{ - httpd_handle_t* server = (httpd_handle_t*) arg; - if (*server) { - ESP_LOGI(TAG, "Stopping webserver"); - stop_webserver(*server); - *server = NULL; - } + ESP_LOGI(TAG, "Error starting server!"); + return NULL; } -static void connect_handler(void* arg, esp_event_base_t event_base, - int32_t event_id, void* event_data) -{ - httpd_handle_t* server = (httpd_handle_t*) arg; - if (*server == NULL) { - ESP_LOGI(TAG, "Starting webserver"); - *server = start_webserver(); - } +void stop_webserver(httpd_handle_t server) { httpd_stop(server); } + +static void disconnect_handler(void *arg, esp_event_base_t event_base, int32_t event_id, + void *event_data) { + httpd_handle_t *server = (httpd_handle_t *)arg; + if (*server) { + ESP_LOGI(TAG, "Stopping webserver"); + stop_webserver(*server); + *server = NULL; + } } -void app_main() -{ - ESP_ERROR_CHECK(nvs_flash_init()); - ESP_ERROR_CHECK(esp_netif_init()); - ESP_ERROR_CHECK(esp_event_loop_create_default()); +static void connect_handler(void *arg, esp_event_base_t event_base, int32_t event_id, + void *event_data) { + httpd_handle_t *server = (httpd_handle_t *)arg; + if (*server == NULL) { + ESP_LOGI(TAG, "Starting webserver"); + *server = start_webserver(); + } +} +void app_main() { + ESP_ERROR_CHECK(nvs_flash_init()); + ESP_ERROR_CHECK(esp_netif_init()); + ESP_ERROR_CHECK(esp_event_loop_create_default()); - ESP_ERROR_CHECK(example_connect()); + ESP_ERROR_CHECK(example_connect()); - ESP_ERROR_CHECK(esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &connect_handler, &server)); - ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, &disconnect_handler, &server)); + ESP_ERROR_CHECK( + esp_event_handler_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &connect_handler, &server)); + ESP_ERROR_CHECK(esp_event_handler_register(WIFI_EVENT, WIFI_EVENT_STA_DISCONNECTED, + &disconnect_handler, &server)); - server = start_webserver(); + server = start_webserver(); } |