--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main/config.c Tue Oct 08 12:00:31 2019 +0200
@@ -0,0 +1,214 @@
+/**
+ * @file config.c
+ * @brief BrewBoard configuration files.
+ */
+
+#include "config.h"
+
+static const char *TAG = "config";
+
+extern unit_t units[3];
+
+
+void write_config() {
+ uint8_t *dst = (uint8_t *)&config;
+ FILE *f = fopen("/spiffs/etc/config.conf", "w+");
+
+ if (f == NULL) {
+ ESP_LOGE(TAG, "write /spiffs/etc/config.conf failed");
+ return;
+ }
+
+ size_t bytes = fwrite(dst, 1, sizeof(config), f);
+ fclose(f);
+ if (bytes != sizeof(config)) {
+ ESP_LOGE(TAG, "/spiffs/etc/config.conf written %d/%d bytes", bytes, sizeof(config));
+ } else {
+ ESP_LOGI(TAG, "/spiffs/etc/config.conf written %d bytes", bytes);
+ }
+}
+
+
+
+void read_config() {
+ uint8_t *dst;
+ uint8_t mac_addr[8] = {0};
+ FILE *f = fopen("/spiffs/etc/config.conf", "r");
+
+ if (f == NULL) {
+ // No configuration yet, create it.
+ esp_efuse_mac_get_default(mac_addr);
+ config.Version = 1;
+ sprintf(config.hostname, "pressure-%02x%02x%02x", mac_addr[3], mac_addr[4], mac_addr[5]);
+ config.mqtt_server[0] = '\0';
+ config.mqtt_port = 1883;
+ config.mqtt_user[0] = '\0';
+ config.mqtt_pwd[0] = '\0';
+ sprintf(config.uuid, "c0ffeeee-dead-beef-cafe-%02x%02x%02x%02x%02x%02x",
+ mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
+ write_config();
+ } else {
+ dst = (uint8_t*)&config;
+ size_t bytes = fread(dst, 1, sizeof(config), f);
+ fclose(f);
+ ESP_LOGI(TAG, "/spiffs/etc/config.conf read %d bytes", bytes);
+ }
+}
+
+
+
+void write_units() {
+ uint8_t *dst = (uint8_t *)&units;
+ FILE *f = fopen("/spiffs/etc/units.conf", "w+");
+
+ if (f == NULL) {
+ ESP_LOGE(TAG, "write /spiffs/etc/units.conf failed");
+ return;
+ }
+ size_t bytes = fwrite(dst, 1, sizeof(units), f);
+ fclose(f);
+ if (bytes != sizeof(units)) {
+ ESP_LOGE(TAG, "/spiffs/etc/units.conf written %d/%d bytes", bytes, sizeof(units));
+ } else {
+ ESP_LOGI(TAG, "/spiffs/etc/units.conf written %d bytes", bytes);
+ }
+}
+
+
+
+void read_units() {
+ uint8_t *dst;
+ uint8_t mac_addr[8] = {0};
+ FILE *f = fopen("/spiffs/etc/units.conf", "r");
+
+ if (f == NULL) {
+ // No units yet, create them.
+ esp_efuse_mac_get_default(mac_addr);
+ for (int i = 0; i < 3; i++) {
+ memset(&units[i], 0, sizeof(unit_t));
+ sprintf(units[i].uuid, "c0ffeeee-dead-beef-caf%d-%02x%02x%02x%02x%02x%02x", i & 3,
+ mac_addr[0], mac_addr[1], mac_addr[2], mac_addr[3], mac_addr[4], mac_addr[5]);
+ sprintf(units[i].alias, "unit%d", (i + 1) & 3);
+ }
+ write_units();
+ } else {
+ dst = (uint8_t*)&units;
+ size_t bytes = fread(dst, 1, sizeof(units), f);
+ fclose(f);
+ ESP_LOGI(TAG, "/spiffs/etc/units.conf read %d bytes", bytes);
+ ESP_LOGI(TAG, "%s %s", units[0].uuid, units[0].alias);
+ }
+}
+
+
+
+int add_station(uint8_t *SSID, uint8_t *Password)
+{
+ FILE *f;
+ uint8_t *dst = (uint8_t *)&wifiStation;
+
+ if (read_station(SSID) >= 0) {
+ ESP_LOGE(TAG, "add_station %s already excists", SSID);
+ return -1;
+ }
+
+ f = fopen("/spiffs/etc/stations.conf", "a+");
+ if (f == NULL) {
+ ESP_LOGE(TAG, "write /spiffs/etc/stations.conf failed");
+ return -1;
+ }
+ memset(dst, 0, sizeof(wifiStation));
+ sprintf(wifiStation.SSID, "%s", (char *)SSID);
+ sprintf(wifiStation.Password, "%s", (char *)Password);
+ wifiStation.hide = false;
+ fwrite(dst, 1, sizeof(wifiStation), f);
+ fclose(f);
+
+ ESP_LOGI(TAG, "add_station %s record: %d", (char *)SSID, read_station(SSID));
+ /* Return the record number */
+ return read_station(SSID);
+}
+
+
+
+int read_station(uint8_t *SSID)
+{
+ uint8_t *dst = (uint8_t *)&wifiStation;
+ static int rc;
+ FILE *f;
+ size_t bytes;
+
+ if ((SSID == NULL) || (strlen((char *)SSID) == 0)) {
+ ESP_LOGI(TAG, "read_station(NULL)");
+ return -1;
+ }
+
+ memset(dst, 0, sizeof(wifiStation));
+ f = fopen("/spiffs/etc/stations.conf", "r+");
+ if (f == NULL) {
+ f = fopen("/spiffs/etc/stations.conf", "w+");
+ fclose(f);
+ ESP_LOGI(TAG, "/spiffs/etc/stations.conf created, return -1");
+ return -1;
+ }
+
+ rc = 0;
+ fseek(f, 0, SEEK_SET);
+
+ while (1) {
+ bytes = fread(dst, 1, sizeof(wifiStation), f);
+ if (bytes < sizeof(wifiStation)) {
+ fclose(f);
+ memset(dst, 0, sizeof(wifiStation));
+ return -1;
+ }
+ if (strcmp(wifiStation.SSID, (char *)SSID) == 0) {
+ // Fount it
+ fclose(f);
+ return rc;
+ }
+ rc++;
+ }
+ return -1;
+}
+
+
+
+void remove_station(uint8_t *SSID)
+{
+ FILE *n, *o;
+ uint8_t *dst;
+ size_t bytes;
+
+ n = fopen("/spiffs/etc/stations.new", "a");
+ if (n == NULL) {
+ ESP_LOGE(TAG, "cannot create /spiffs/etc/stations.new");
+ return;
+ }
+ o = fopen("/spiffs/etc/stations.conf", "r");
+ if (o == NULL) {
+ ESP_LOGE(TAG, "cannot open spiffs/etc/stations.conf for reading");
+ fclose(n);
+ return;
+ }
+
+ dst = (uint8_t*)&wifiStation;
+ while (true) {
+ bytes = fread(dst, 1, sizeof(wifiStation), o);
+ if (bytes == 0)
+ break;
+
+ if ((strcmp((char *)SSID, wifiStation.SSID) == 0) || (strlen(wifiStation.SSID) == 0)) {
+ // Record to delete, don't copy
+ } else {
+ fwrite(dst, 1, sizeof(wifiStation), n);
+ }
+ }
+ fclose(o);
+ fclose(n);
+
+ rename("/spiffs/etc/stations.conf", "/spiffs/etc/stations.old");
+ rename("/spiffs/etc/stations.new", "/spiffs/etc/stations.conf");
+ unlink("/spiffs/etc/stations.old");
+}
+