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293 lines
8.0 KiB
293 lines
8.0 KiB
#include <esp_log.h>
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#include <esp_err.h>
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#include <fileserver/token_subs.h>
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#include <httpd_utils/captive.h>
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#include <errno.h>
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#include "firehazard.h"
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#include "websrv.h"
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#include "esp_http_server.h"
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#include "utils.h"
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#include "files/files_enum.h"
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#include "version.h"
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#include "analog.h"
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static const char *TAG="websrv";
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static httpd_handle_t s_hServer = NULL;
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// Embedded files (must also be listed in CMakeLists.txt as COMPONENT_EMBED_TXTFILES)
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efile(index_file, "index_html");
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static struct tpl_kv_list build_index_replacements_kv(void)
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{
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// char name[TPL_KV_KEY_LEN];
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struct tpl_kv_list kv = tpl_kv_init();
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tpl_kv_add(&kv, "version", APP_VERSION);
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size_t pcap1 = 300;
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size_t pcap2 = 300;
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char *path1 = malloc(pcap1);
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char *path2 = malloc(pcap2);
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assert(path1);
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assert(path2);
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path1[0] = 0;
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path2[0] = 0;
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#define SCRATCH_SIZE 15
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char scratch1[SCRATCH_SIZE];
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char scratch2[SCRATCH_SIZE];
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bool last_empty = true; // first is move
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bool suc;
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for (int i = 0; i < REG_HISTORY_LEN; i++) {
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float x = i*2.5f;
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if (reg_meas_history[i] == 0) {
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snprintf(scratch1, SCRATCH_SIZE, "M%.1f,0", x);
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snprintf(scratch2, SCRATCH_SIZE, "M%.1f,0", x);
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last_empty = true;
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} else {
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snprintf(scratch1, SCRATCH_SIZE, "%c%.1f,%d", last_empty ? 'M' : 'L', x, (int)(400 - reg_meas_history[i]));
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snprintf(scratch2, SCRATCH_SIZE, "%c%.1f,%d", last_empty ? 'M' : 'L', x, (int)(400 - reg_tset_history[i]));
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last_empty = false;
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}
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suc = append_realloc(&path1, &pcap1, scratch1);
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assert(suc);
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suc = append_realloc(&path2, &pcap2, scratch2);
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assert(suc);
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}
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tpl_kv_add_heapstr(&kv, "ser-act", path1);
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tpl_kv_add_heapstr(&kv, "ser-set", path2);
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bool ena = fire_enabled();
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tpl_kv_add(&kv, "fire_dis_ck", ena ? "" : "selected");
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tpl_kv_add(&kv, "fire_en_ck", ena ? "selected" : "");
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tpl_kv_add_int(&kv, "timeshift", history_counter);
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snprintf(scratch1, SCRATCH_SIZE, "%.2f", analog_read());
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tpl_kv_add(&kv, "temp", scratch1);
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snprintf(scratch1, SCRATCH_SIZE, "%.0f", fire_get_setpoint(false));
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tpl_kv_add(&kv, "tset", scratch1);
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float kp, ki, kd;
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fire_get_tuning(&kp, &ki, &kd);
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snprintf(scratch1, SCRATCH_SIZE, "%.3f", kp);
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tpl_kv_add(&kv, "kp", scratch1);
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snprintf(scratch1, SCRATCH_SIZE, "%.3f", ki);
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tpl_kv_add(&kv, "ki", scratch1);
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snprintf(scratch1, SCRATCH_SIZE, "%.3f", kd);
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tpl_kv_add(&kv, "kd", scratch1);
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#undef SCRATCH_SIZE
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return kv;
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}
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/* Main page */
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static esp_err_t handler_index(httpd_req_t *req)
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{
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struct tpl_kv_list kv = build_index_replacements_kv();
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esp_err_t suc = httpd_send_template_file(req, FILE_INDEX_HTML, tpl_kv_replacer, &kv, 0);
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tpl_kv_free(&kv);
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return suc;
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}
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/* Update XHR for new index page data */
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static esp_err_t handler_update(httpd_req_t *req)
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{
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struct tpl_kv_list kv = build_index_replacements_kv();
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esp_err_t suc = tpl_kv_send_as_ascii_map(req, &kv);
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tpl_kv_free(&kv);
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return suc;
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}
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/* Set a param */
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static esp_err_t handler_set(httpd_req_t *req)
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{
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char buf[200];
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int n = httpd_req_recv(req, buf, 63);
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if (n < 0) {
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ESP_LOGW(TAG, "rx er");
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goto err;
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}
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buf[n]=0;
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char val[20];
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// select box 0/1
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esp_err_t rv = httpd_query_key_value(buf, "fire", val, 20);
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if (rv == ESP_OK) {
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fire_enable(val[0] == '1');
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}
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rv = httpd_query_key_value(buf, "tset", val, 20);
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if (rv == ESP_OK) {
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errno = 0;
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float f = atoff(val);
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if (!errno) {
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fire_setlevel(f);
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}
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}
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float kp, ki, kd;
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// sorry
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// Kp
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rv = httpd_query_key_value(buf, "kp", val, 20);
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if (rv == ESP_OK) {
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errno = 0;
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kp = atoff(val);
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if (!errno) {
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// Ki
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rv = httpd_query_key_value(buf, "ki", val, 20);
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if (rv == ESP_OK) {
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errno = 0;
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ki = atoff(val);
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if (!errno) {
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// Kd
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rv = httpd_query_key_value(buf, "kd", val, 20);
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if (rv == ESP_OK) {
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errno = 0;
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kd = atoff(val);
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if (!errno) {
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fire_set_tuning(kp, ki, kd);
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// save to NVS
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nvs_handle nvs;
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ESP_ERROR_CHECK(nvs_open("config", NVS_READWRITE, &nvs));
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union uf32 ukp, uki, ukd;
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ukp.f = kp;
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uki.f = ki;
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ukd.f = kd;
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nvs_set_u32(nvs, "kp", ukp.u);
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nvs_set_u32(nvs, "ki", uki.u);
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nvs_set_u32(nvs, "kd", ukd.u);
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nvs_commit(nvs);
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nvs_close(nvs);
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}
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}
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}
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}
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}
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}
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httpd_resp_set_hdr(req, "Location", "/");
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httpd_resp_set_status(req, "302 Found");
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return httpd_resp_send(req, NULL, 0);
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err:
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return httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, NULL);
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}
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/* Request emulator reboot */
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static esp_err_t handler_reboot(httpd_req_t *req)
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{
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httpd_resp_send(req, "<!DOCTYPE html><html><head>"
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"<meta http-equiv=\"refresh\" content=\"10; url=/\">"
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"</head>"
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"<body>"
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"Reboot requested. Reloading in 10 seconds.<br>"
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"<a href=\"/\">Try now.</a>", -1);
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ESP_LOGI(TAG, "Restarting ESP...");
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esp_restart();
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}
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/* An HTTP GET handler */
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static esp_err_t handler_staticfiles(httpd_req_t *r)
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{
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const struct embedded_file_info *file;
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const char *fname = r->user_ctx;
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enum file_access_level access = FILE_ACCESS_PROTECTED;
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// wildcard files must be public
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if (fname == NULL) {
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fname = r->uri + 1; // URI always starts with slash, but we dont want a slash in the file name
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access = FILE_ACCESS_PUBLIC;
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}
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#ifdef USE_CAPTIVE_PORTAL
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// First check if this is a phone taken here by the captive portal
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esp_err_t rv = httpd_captive_redirect(r);
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if (rv != ESP_ERR_NOT_FOUND) return rv;
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#endif
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if (ESP_OK != www_get_static_file(fname, access, &file)) {
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ESP_LOGW(TAG, "File not found: %s", fname);
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return httpd_resp_send_404(r);
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}
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else {
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if (streq(file->mime, "text/html")) {
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// using the template func to allow includes
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return httpd_send_template_file_struct(r, file, /*replacer*/NULL, /*ctx*/NULL, /*opts*/0);
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} else {
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return httpd_send_static_file_struct(r, file, TPL_ESCAPE_NONE, 0);
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}
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}
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}
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static const httpd_uri_t routes[] = {
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{
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.uri = "/",
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.method = HTTP_GET,
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.handler = handler_index,
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},
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{
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.uri = "/data",
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.method = HTTP_GET,
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.handler = handler_update,
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},
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{
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.uri = "/set",
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.method = HTTP_POST,
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.handler = handler_set,
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},
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{
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.uri = "/reboot",
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.method = HTTP_GET,
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.handler = handler_reboot,
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},
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{
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.uri = "*", // any file except protected (e.g. not HTML, PEM etc)
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.method = HTTP_GET,
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.handler = handler_staticfiles,
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},
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};
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esp_err_t websrv_init(void)
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{
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httpd_config_t config = HTTPD_DEFAULT_CONFIG();
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config.stack_size = 6000;
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config.uri_match_fn = httpd_uri_match_wildcard;
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config.lru_purge_enable = true;
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ESP_LOGI(TAG, "Starting HTTP server on port: '%d'", config.server_port);
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esp_err_t suc = httpd_start(&s_hServer, &config);
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if (suc == ESP_OK) {
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ESP_LOGI(TAG, "HTTP server started");
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for (int i = 0; i < sizeof(routes) / sizeof(httpd_uri_t); i++) {
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httpd_register_uri_handler(s_hServer, &routes[i]);
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}
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return ESP_OK;
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}
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ESP_LOGE(TAG, "Error starting server!");
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return suc;
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}
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