From 3a78dbef98a7898d4dfc22ea3bd600bff596f75a Mon Sep 17 00:00:00 2001 From: lonkaars Date: Mon, 9 Aug 2021 13:09:10 +0200 Subject: color set/get with http POST/GET --- main/main.c | 39 ++++++++++++++++++++++++++++++++++----- 1 file changed, 34 insertions(+), 5 deletions(-) diff --git a/main/main.c b/main/main.c index 1cc9e60..0343f14 100644 --- a/main/main.c +++ b/main/main.c @@ -16,14 +16,42 @@ static const char *TAG = "rgbstrip"; int color[3]; static httpd_handle_t server = NULL; -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)); +char *color_to_str() { + char *value = (char *)malloc(sizeof(char) * (6 + 1)); // 6 char + 1 \0; + sprintf(value, "%02x%02x%02x", color[0], color[1], color[2]); + return value; +} + +esp_err_t get_handler(httpd_req_t *req) { + const char *resp_str = color_to_str(); + httpd_resp_send(req, resp_str, 6); + + return ESP_OK; +} + +httpd_uri_t get = {.uri = "/", .method = HTTP_GET, .handler = get_handler}; + +esp_err_t post_handler(httpd_req_t *req) { + char buf[6]; + int remaining = req->content_len; + + if (remaining != 6) + return ESP_OK; + httpd_req_recv(req, buf, 6); + + char r_hex[] = {buf[0], buf[1], '\0'}; + char g_hex[] = {buf[2], buf[3], '\0'}; + char b_hex[] = {buf[4], buf[5], '\0'}; + + sscanf(r_hex, "%x", &color[0]); + sscanf(g_hex, "%x", &color[1]); + sscanf(b_hex, "%x", &color[2]); + httpd_resp_send_chunk(req, NULL, 0); return ESP_OK; } -httpd_uri_t hello = {.uri = "/", .method = HTTP_GET, .handler = hello_get_handler}; +httpd_uri_t post = {.uri = "/", .method = HTTP_POST, .handler = post_handler}; httpd_handle_t start_webserver(void) { httpd_handle_t server = NULL; @@ -32,7 +60,8 @@ httpd_handle_t start_webserver(void) { 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); + httpd_register_uri_handler(server, &get); + httpd_register_uri_handler(server, &post); return server; } -- cgit v1.2.3