5127aa1976
This example demonstrates the capability of wildcard URI matching allowing for a full fledged file server to be created using esp_http_server.
128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
/* HTTP File Server Example
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This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this
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software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <sys/param.h>
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#include "esp_wifi.h"
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#include "esp_event_loop.h"
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#include "esp_log.h"
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#include "esp_system.h"
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#include "esp_spiffs.h"
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#include "nvs_flash.h"
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/* This example demonstrates how to create file server
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* using esp_http_server. This file has only startup code.
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* Look in file_server.c for the implementation */
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/* The example uses simple WiFi configuration that you can set via
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* 'make menuconfig'.
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* If you'd rather not, just change the below entries to strings
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* with the config you want -
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* ie. #define EXAMPLE_WIFI_SSID "mywifissid"
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*/
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#define EXAMPLE_WIFI_SSID CONFIG_WIFI_SSID
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#define EXAMPLE_WIFI_PASS CONFIG_WIFI_PASSWORD
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static const char *TAG="example";
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/* Wi-Fi event handler */
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static esp_err_t event_handler(void *ctx, system_event_t *event)
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{
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switch(event->event_id) {
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case SYSTEM_EVENT_STA_START:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_START");
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ESP_ERROR_CHECK(esp_wifi_connect());
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break;
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case SYSTEM_EVENT_STA_GOT_IP:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_GOT_IP");
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ESP_LOGI(TAG, "Got IP: '%s'",
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ip4addr_ntoa(&event->event_info.got_ip.ip_info.ip));
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break;
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case SYSTEM_EVENT_STA_DISCONNECTED:
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ESP_LOGI(TAG, "SYSTEM_EVENT_STA_DISCONNECTED");
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ESP_ERROR_CHECK(esp_wifi_connect());
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break;
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default:
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break;
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}
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return ESP_OK;
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}
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/* Function to initialize Wi-Fi at station */
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static void initialise_wifi(void)
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{
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ESP_ERROR_CHECK(nvs_flash_init());
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tcpip_adapter_init();
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ESP_ERROR_CHECK(esp_event_loop_init(event_handler, NULL));
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wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
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ESP_ERROR_CHECK(esp_wifi_init(&cfg));
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ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
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wifi_config_t wifi_config = {
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.sta = {
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.ssid = EXAMPLE_WIFI_SSID,
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.password = EXAMPLE_WIFI_PASS,
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},
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};
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ESP_LOGI(TAG, "Setting WiFi configuration SSID %s...", wifi_config.sta.ssid);
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ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
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ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
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ESP_ERROR_CHECK(esp_wifi_start());
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}
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/* Function to initialize SPIFFS */
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static esp_err_t init_spiffs(void)
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{
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ESP_LOGI(TAG, "Initializing SPIFFS");
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esp_vfs_spiffs_conf_t conf = {
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.base_path = "/spiffs",
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.partition_label = NULL,
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.max_files = 5, // This decides the maximum number of files that can be created on the storage
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.format_if_mount_failed = true
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};
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esp_err_t ret = esp_vfs_spiffs_register(&conf);
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if (ret != ESP_OK) {
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if (ret == ESP_FAIL) {
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ESP_LOGE(TAG, "Failed to mount or format filesystem");
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} else if (ret == ESP_ERR_NOT_FOUND) {
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ESP_LOGE(TAG, "Failed to find SPIFFS partition");
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} else {
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ESP_LOGE(TAG, "Failed to initialize SPIFFS (%s)", esp_err_to_name(ret));
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}
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return ESP_FAIL;
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}
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size_t total = 0, used = 0;
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ret = esp_spiffs_info(NULL, &total, &used);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "Failed to get SPIFFS partition information (%s)", esp_err_to_name(ret));
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return ESP_FAIL;
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}
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ESP_LOGI(TAG, "Partition size: total: %d, used: %d", total, used);
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return ESP_OK;
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}
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/* Declare the function which starts the file server.
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* Implementation of this function is to be found in
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* file_server.c */
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esp_err_t start_file_server(const char *base_path);
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void app_main()
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{
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initialise_wifi();
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/* Initialize file storage */
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ESP_ERROR_CHECK(init_spiffs());
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/* Start the file server */
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ESP_ERROR_CHECK(start_file_server("/spiffs"));
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}
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