Configuration and code improvements

extra_post.py

@@ -74,7 +74,7 @@ def postbuild(source, target, env):
     uploadfiles = uploadparts[-6:]
     for i in range(1, len(uploadfiles), 2):
         if not os.path.isfile(uploadfiles[i]):
-            print("file %s for combine not found"%uploadfiles[i])
+            print("file {} for combine not found".format(uploadfiles[i]))
             return
     offset = uploadfiles[0]
 

include/config.h

@@ -1,9 +1,95 @@
 #pragma once
 
+#include <Preferences.h>
+#include <ArduinoJson.h>
+#include <variant>
+#include <map>
+#include "main.h"
+
+enum class ConfigType {
+    BYTE,
+    SHORT,
+    INT,
+    BOOL,
+    FLOAT,
+    CHAR,
+    STRING
+};
+
+using ConfigValue = std::variant<
+    uint8_t,    // BYTE unsigned
+    int16_t,    // SHORT
+    int32_t,    // INT
+    bool,       // BOOL
+    float,      // FLOAT
+    char,       // CHAR
+    String      // STRING
+>;
+
+struct ConfigDef {
+  const char* key;
+  ConfigType type;
+  ConfigValue defval;
+};
+
+// keys have to match names in config.json
+static const ConfigDef configdefs[] = {
+    {"systemName", ConfigType::STRING, String("OBPkp61")},
+    {"systemMode", ConfigType::CHAR, 'K'},
+    {"logLevel", ConfigType::BYTE, uint8_t(0)},
+    {"adminPassword", ConfigType::STRING, String("obpkp61")},
+    {"useAdminPass", ConfigType::BOOL, true},
+    {"apEnable", ConfigType::BOOL, true},
+    {"apPassword", ConfigType::STRING, String("obpkp61")},
+    {"apIp", ConfigType::STRING, String("192.168.15.1")},
+    {"apMask", ConfigType::STRING, String("255.255.255.0")},
+    {"stopApTime", ConfigType::SHORT, int16_t(0)},
+    {"cpuSpeed", ConfigType::SHORT, int16_t(160)},
+    {"ledBrightness", ConfigType::BYTE, uint8_t(96)},
+    {"ledRgbBrightness", ConfigType::BYTE, uint8_t(96)},
+    {"tempFormat", ConfigType::CHAR, 'C'},
+    {"switchBank", ConfigType::BYTE, uint8_t(0)},
+    {"key1", ConfigType::BYTE, uint8_t(1)},
+    {"key1long", ConfigType::BYTE, uint8_t(11)},
+    {"key2", ConfigType::BYTE, uint8_t(2)},
+    {"key2long", ConfigType::BYTE, uint8_t(12)},
+    {"key3", ConfigType::BYTE, uint8_t(3)},
+    {"key3long", ConfigType::BYTE, uint8_t(13)},
+    {"key4", ConfigType::BYTE, uint8_t(4)},
+    {"key4long", ConfigType::BYTE, uint8_t(14)},
+    {"key5", ConfigType::BYTE, uint8_t(5)},
+    {"key5long", ConfigType::BYTE, uint8_t(15)},
+    {"key6", ConfigType::BYTE, uint8_t(6)},
+    {"key6long", ConfigType::BYTE,  uint8_t(16)},
+    {"n2kDestA", ConfigType::STRING, String("")},
+    {"n2kDestB", ConfigType::STRING, String("")},
+    {"n2kDestC", ConfigType::STRING, String("")},
+    {"envInterval", ConfigType::SHORT, int16_t(5000)},
+
+    // no user access
+    {"LastNodeId", ConfigType::BYTE, uint8_t(N2K_DEFAULT_NODEID)}
+};
+constexpr size_t configdefsCount = sizeof(configdefs) / sizeof(configdefs[0]);
+
 class Config {
 private:
-    Preferences *prefs;
+    Preferences& prefs;
+    std::map<String, ConfigValue> values;
+    std::map<String, const ConfigDef*> defs;
 public:
-    Config();
+    explicit Config(Preferences& prefs);
-    bool loadConfig();
+    void load();
+    bool save(JsonObject json);
+    void dump();
+
+    template<typename T>
+    T get(const char* key) const;
+
+    uint8_t getByte(const char* key) const;
+    int16_t getShort(const char* key) const;
+    int32_t getInt(const char* key) const;
+    bool getBool(const char* key) const;
+    float getFloat(const char* key) const;
+    char getChar(const char* key) const;
+    const String& getString(const char* key) const;
 };

include/main.h

@@ -1,4 +1,5 @@
 #pragma once
+#include <Arduino.h>
 
 #define STRINGIFY_IMPL(x) #x
 #define STRINGIFY(x) STRINGIFY_IMPL(x)
@@ -87,14 +88,24 @@
 #define BUTTON_6 5
 #define BUTTON_DST 6
 
-enum class ButtonPressType : uint8_t
+enum class ButtonPressType : uint8_t {
-{
     SHORT,  // < 1 second
     MEDIUM, // >= 1 second and < 3 seconds
     LONG    // >= 3 seconds
 };
-struct ButtonEvent
+
-{
+struct ButtonEvent {
     uint8_t buttonId;
     ButtonPressType pressType;
 };
+
+extern uint64_t chipid;
+extern uint8_t led_brightness;
+extern uint8_t rgb_brightness;
+extern uint8_t keycode[6];
+extern uint8_t longcode[6];
+
+extern float temp;
+extern float hum;
+
+String uptime_with_unit();

include/webserver.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#include <Arduino.h>
+
+#include <ESPAsyncWebServer.h>
+
+extern AsyncWebServer server;
+
+void webserver_init();
+void send_embedded_file(String name, AsyncWebServerRequest *request);
+

platformio.ini

@@ -36,7 +36,7 @@ build_flags =
     -DBOARD_HAS_PSRAM
     -DARDUINO_USB_CDC_ON_BOOT=1
     -DCORE_DEBUG_LEVEL=4 # Max. possible loglevel: 0=None, 1=Error, 2=Warning, 3=Info, 4=Debug, 5=Verbose
-    -DCONFIG_LOG_TX_BUF_SIZE=4096
+    -DCONFIG_LOG_TX_BUF_SIZE=8192
     -std=gnu++17
 build_unflags =
     -std=gnu++11

src/config.cpp

@@ -1,12 +1,284 @@
-#include <Preferences.h>
-#include "main.h"
 #include "config.h"
 
-Config::Config() {
+// Logging
+static const char* TAG = "CFG";
+
+Config::Config(Preferences& prefs)
+    : prefs(prefs) {
+
+    // init defs mapping
+    for (size_t i = 0; i < configdefsCount; ++i) {
+        defs[configdefs[i].key] = &configdefs[i];
     }
        
-bool Config::loadConfig() {
+}
-    prefs->begin(PREF_NAME);
+
-    prefs->end();
+void Config::load() {
+    ESP_LOGI(TAG, "Loading configuration");
+    prefs.begin(PREF_NAME, true);
+    for (const auto& def : configdefs) {
+        if (prefs.isKey(def.key)) {
+            ESP_LOGI(TAG, "Config option '%s' loaded from NVS", def.key);
+            switch (def.type) {
+                case ConfigType::BYTE:
+                    values[def.key] = (uint8_t)prefs.getUChar(def.key, std::get<uint8_t>(def.defval));
+                    break;
+                case ConfigType::SHORT:
+                    values[def.key] = (int16_t)prefs.getShort(def.key, std::get<int16_t>(def.defval));
+                    break;
+                case ConfigType::INT:
+                    values[def.key] = prefs.getInt(def.key, std::get<int32_t>(def.defval));
+                    break;
+                case ConfigType::BOOL:
+                    values[def.key] = prefs.getBool(def.key, std::get<bool>(def.defval));
+                    break;
+                case ConfigType::FLOAT:
+                    values[def.key] = prefs.getFloat(def.key, std::get<float>(def.defval));
+                    break;
+                case ConfigType::CHAR:
+                    values[def.key] = (char)prefs.getChar(def.key, std::get<char>(def.defval));
+                    break;
+                case ConfigType::STRING:
+                    values[def.key] = prefs.getString(def.key, std::get<String>(def.defval));
+                    break;
+            }
+        } else {
+            ESP_LOGI(TAG, "Using default for '%s'", def.key);
+            switch (def.type) {
+                case ConfigType::BYTE:
+                    values[def.key] = std::get<uint8_t>(def.defval);
+                    break;
+                case ConfigType::SHORT:
+                    values[def.key] = std::get<int16_t>(def.defval);
+                    break;
+                case ConfigType::INT:
+                    values[def.key] = std::get<int32_t>(def.defval);
+                    break;
+                case ConfigType::BOOL:
+                    values[def.key] = std::get<bool>(def.defval);
+                    break;
+                case ConfigType::FLOAT:
+                    values[def.key] = std::get<float>(def.defval);
+                    break;
+                case ConfigType::CHAR:
+                    values[def.key] = std::get<char>(def.defval);
+                    break;
+                case ConfigType::STRING:
+                    values[def.key] = std::get<String>(def.defval);
+                    break;
+            }
+        }
+    }
+    prefs.end();
+}
+
+bool Config::save(JsonObject json) {
+    
+    // TODO Not fail if one single value is wrong?
+
+    prefs.begin(PREF_NAME, false);
+
+    int errors = 0;
+    for (JsonPair kv : json) {
+        const char* key = kv.key().c_str();
+        JsonVariant v = kv.value();
+
+        auto it = values.find(key);
+        if (it == values.end()) {
+            ESP_LOGE(TAG, "Unexpected missing key: %s", key);
+            return false;
+        }
+
+        auto itdef = defs.find(key);
+        if (itdef == defs.end()) {
+            ESP_LOGE(TAG, "Unexpected missing defs key: %s", key);
+            return false;
+        }
+
+        // const ConfigDef* def = itdef->second;
+
+        switch (itdef->second->type) {
+            case ConfigType::BYTE: {
+                if (!v.is<uint8_t>()) {
+                    errors++;
+                    break;
+                }
+                uint8_t newval = v.as<uint8_t>();
+                uint8_t *curval = std::get_if<uint8_t>(&values[key]);
+                if (newval != *curval) {
+                    values[key] = newval;
+                    //prefs.putUChar(key, newval);
+                    ESP_LOGI(TAG, "changing %s, replacing %d with %d", key, *curval, newval);
+                }
+                break;
+            }
+/*            case ConfigType::SHORT:
+                if (!v.is<int16_t>()) return false;
+                values[key] = v.as<int16_t>();
+                prefs.putShort(key, v.as<int16_t>());
+                break;
+            case ConfigType::INT:
+                if (!v.is<int32_t>()) return false;
+                values[key] = v.as<int32_t>();
+                prefs.putInt(key, v.as<int32_t>());
+                break;
+            case ConfigType::BOOL:
+                if (!v.is<bool>()) return false;
+                values[key] = v.as<bool>();
+                prefs.putBool(key, v.as<bool>());
+                break;
+            case ConfigType::FLOAT:
+                if (!v.is<float>()) return false;
+                values[key] = v.as<float>();
+                prefs.putFloat(key, v.as<float>());
+                break;
+            case ConfigType::CHAR:
+                if (!v.is<const char*>()) return false;
+                values[key] = v.as<const char*>()[0];
+                prefs.putChar(key, v.as<const char*>()[0]);
+                break;
+            case ConfigType::STRING:
+                if (!v.is<const char*>()) return false;
+                values[key] = String(v.as<const char*>());
+                prefs.putString(key, v.as<const char*>());
+                break; */
+            default:
+                ESP_LOGE("CFG", "Unsupported type for key %s", key);
+        }
+    }
+
+    prefs.end();
     return true;
 }
+
+void Config::dump() {
+    // only for debugging purposes,
+    ESP_LOGI(TAG, "========== Config options ==========");
+    for (const auto& def : configdefs) {
+        auto it = values.find(def.key);
+        if (it == values.end()) {
+            ESP_LOGW(TAG, "%s = <missing>", def.key);
+            continue;
+        }
+        const ConfigValue& value = it->second;
+        switch (def.type) {
+            case ConfigType::BYTE:
+                if (auto v = std::get_if<uint8_t>(&value))
+                    ESP_LOGI(TAG, "%s = %u", def.key, *v);
+                break;
+            case ConfigType::SHORT:
+                if (auto v = std::get_if<int16_t>(&value))
+                    ESP_LOGI(TAG, "%s = %d", def.key, *v);
+                break;
+            case ConfigType::INT:
+                if (auto v = std::get_if<int32_t>(&value))
+                    ESP_LOGI(TAG, "%s = %d", def.key, *v);
+                break;
+            case ConfigType::BOOL:
+                if (auto v = std::get_if<bool>(&value))
+                    ESP_LOGI(TAG, "%s = %s", def.key, *v ? "true" : "false");
+                break;
+            case ConfigType::FLOAT:
+                if (auto v = std::get_if<float>(&value))
+                    ESP_LOGI(TAG, "%s = %.3f", def.key, *v);
+                break;
+            case ConfigType::CHAR:
+                if (auto v = std::get_if<char>(&value))
+                    ESP_LOGI(TAG, "%s = '%c'", def.key, *v);
+                break;
+            case ConfigType::STRING:
+                if (auto v = std::get_if<String>(&value))
+                    ESP_LOGI(TAG, "%s = \"%s\"", def.key, v->c_str());
+                break;
+        }
+    }
+    ESP_LOGI(TAG, "====================================");
+}
+
+template<typename T>
+T Config::get(const char* key) const {
+    return std::get<T>(values.at(key));
+}
+
+uint8_t Config::getByte(const char* key) const {
+    auto it = values.find(key);
+    if (it == values.end()) {
+        ESP_LOGE(TAG, "Missing config key: %s", key);
+        abort();
+    }
+    if (auto v = std::get_if<uint8_t>(&it->second))
+        return *v;
+    ESP_LOGE(TAG, "Type mismatch for key: %s", key);
+    abort();
+}
+
+int16_t Config::getShort(const char* key) const {
+    auto it = values.find(key);
+    if (it == values.end()) {
+        ESP_LOGE(TAG, "Missing config key: %s", key);
+        abort();
+    }
+    if (auto v = std::get_if<int16_t>(&it->second))
+        return *v;
+    ESP_LOGE(TAG, "Type mismatch for key: %s", key);
+    abort();
+}
+
+int32_t Config::getInt(const char* key) const {
+    auto it = values.find(key);
+    if (it == values.end()) {
+        ESP_LOGE(TAG, "Missing config key: %s", key);
+        abort();
+    }
+    if (auto v = std::get_if<int32_t>(&it->second))
+        return *v;
+    ESP_LOGE(TAG, "Type mismatch for key: %s", key);
+    abort();
+}
+
+bool Config::getBool(const char* key) const {
+    auto it = values.find(key);
+    if (it == values.end())
+        ESP_LOGE(TAG, "Missing config key: %s", key);
+        abort();
+    if (auto v = std::get_if<bool>(&it->second))
+        return *v;
+    ESP_LOGE(TAG, "Type mismatch for key: %s", key);
+    abort();
+}
+
+float Config::getFloat(const char* key) const {
+    auto it = values.find(key);
+    if (it == values.end()) {
+        ESP_LOGE(TAG, "Missing config key: %s", key);
+        abort();
+    }
+    if (auto v = std::get_if<float>(&it->second))
+        return *v;
+    ESP_LOGE(TAG, "Type mismatch for key: %s", key);
+    abort();
+}
+
+char Config::getChar(const char* key) const {
+    auto it = values.find(key);
+    if (it == values.end()) {
+        ESP_LOGE(TAG, "Missing config key: %s", key);
+        abort();
+    }
+    if (auto v = std::get_if<char>(&it->second))
+        return *v;
+    ESP_LOGE(TAG, "Type mismatch for key: %s", key);
+    abort();
+}
+
+const String& Config::getString(const char* key) const {
+    auto it = values.find(key);
+    if (it == values.end()) {
+        ESP_LOGE(TAG, "Missing config key: %s", key);
+        abort();
+    }
+    if (auto v = std::get_if<String>(&it->second))
+        return *v;
+    ESP_LOGE(TAG, "Type mismatch for key: %s", key);
+    abort();
+}

src/main.cpp

@@ -1,11 +1,8 @@
-#include <Arduino.h>
 #include "main.h"
-#include <Preferences.h>
+#include "config.h"
+#include "webserver.h"
 #include <ArduinoJson.h>
 #include <WiFi.h>
-#include <AsyncTCP.h>
-#include <ESPAsyncWebServer.h>
-#include <Update.h>
 #include <Wire.h>
 #include <SHT31.h> // temp. sensor
 #include <NMEA2000.h>
@@ -65,50 +62,17 @@ String get_sha256(String payload) {
 }
 
 // Logging
-static const char* TAG = "main.cpp";
+static const char* TAG = "MAIN";
 
 Preferences preferences;    // persistent storage for configuration
-
+Config config(preferences); // configuration object
-class EmbeddedFile;
-static std::map<String, EmbeddedFile*> embeddedFiles;
-class EmbeddedFile {
-  public:
-    const uint8_t *start;
-    int len;
-    String contentType;
-    EmbeddedFile(String name, String contentType, const uint8_t *start, int len) {
-      this->start = start;
-      this->len = len;
-      this->contentType = contentType;
-      embeddedFiles[name] = this;
-    }
-} ;
-
-#define EMBED_GZ_FILE(fileName, binName, contentType) \
-  extern const uint8_t  binName##_File[] asm("_binary_" #binName "_start"); \
-  extern const uint8_t  binName##_FileLen[] asm("_binary_" #binName "_size"); \
-  const EmbeddedFile binName##_Config(fileName,contentType,(const uint8_t*)binName##_File,(int)binName##_FileLen);
-#include "embeddedfiles.h"
-
-void send_embedded_file(String name, AsyncWebServerRequest *request)
-{
-    std::map<String, EmbeddedFile*>::iterator it = embeddedFiles.find(name);
-    if (it != embeddedFiles.end()) {
-        EmbeddedFile* found = it->second;
-        AsyncWebServerResponse *response = request->beginResponse(200, found->contentType, found->start, found->len);
-        response->addHeader(F("Content-Encoding"), F("gzip"));
-        request->send(response);
-    } else {
-        request->send(404, "text/plain", "Not found");
-    }
-}
 
 uint64_t chipid = ESP.getEfuseMac();
 
 const char* wifi_ssid = "OBPKP61";
 const char* wifi_pass = "keypad61";
 bool apEnabled = false;
-AsyncWebServer server(80);
+// AsyncWebServer server(80);
 
 unsigned long firstStart = 0;
 unsigned long lastSensor = 0;
@@ -316,24 +280,9 @@ void cpuFreqTimerCallback(TimerHandle_t xTimer) {
 void setup() {
 
     Serial.begin(115200);
-    // while (!Serial) delay(10); verhindert Booten ohne USB-Verbindung
+    while (!Serial) delay(10); // verhindert Booten ohne USB-Verbindung
     delay(500);
 
-    preferences.begin("nvs", false);
-    keycode[0] = preferences.getInt("key1", 1);
-    keycode[1] = preferences.getInt("key2", 2);
-    keycode[2] = preferences.getInt("key3", 3);
-    keycode[3] = preferences.getInt("key4", 4);
-    keycode[4] = preferences.getInt("key5", 5);
-    keycode[5] = preferences.getInt("key6", 6);
-    longcode[0] = preferences.getInt("key1long", 11);
-    longcode[1] = preferences.getInt("key2long", 12);
-    longcode[2] = preferences.getInt("key3long", 13);
-    longcode[3] = preferences.getInt("key4long", 14);
-    longcode[4] = preferences.getInt("key5long", 15);
-    longcode[5] = preferences.getInt("key6long", 16);
-    preferences.end();
-
     // Configure I/O pins
 
     // internal user led (red)
@@ -381,6 +330,22 @@ void setup() {
 
     ESP_LOGI(TAG, "Starting ...");
 
+    config.load();
+    config.dump();
+
+    keycode[0] = config.getByte("key1");
+    keycode[1] = config.getByte("key2");
+    keycode[2] = config.getByte("key3");
+    keycode[3] = config.getByte("key4");
+    keycode[4] = config.getByte("key5");
+    keycode[5] = config.getByte("key6");
+    longcode[0] = config.getByte("key1long");
+    longcode[1] = config.getByte("key2long");
+    longcode[2] = config.getByte("key3long");
+    longcode[3] = config.getByte("key4long");
+    longcode[4] = config.getByte("key5long");
+    longcode[5] = config.getByte("key6long");
+
     esp_sleep_wakeup_cause_t cause = esp_sleep_get_wakeup_cause();
     if (cause == ESP_SLEEP_WAKEUP_EXT0) {
         ESP_LOGI(TAG, "  Wake up by key");
@@ -391,15 +356,21 @@ void setup() {
     // N2K basics
     nodeid = N2K_DEFAULT_NODEID;
     ESP_LOGI(TAG, "N2K default node is %d", nodeid);
-    preferences.begin("nvs", false);
+    preferences.begin(PREF_NAME, false);
     nodeid = preferences.getInt("LastNodeId", N2K_DEFAULT_NODEID);
-    cpuspeed = preferences.getInt("cpuSpeed", 160);
-    int apstoptime = preferences.getInt("stopApTime", 0);
-    String apip = preferences.getString("apIp", "192.168.15.1");
-    String apmask = preferences.getString("apMask", "255.255.255.0");
     preferences.end();
     ESP_LOGI(TAG, "N2K node id set to %d from preferences", nodeid);
 
+    //cpuspeed = preferences.getInt("cpuSpeed", 160);
+    cpuspeed = config.getShort("cpuSpeed");
+    //int apstoptime = preferences.getInt("stopApTime", 0);
+    int16_t apstoptime = config.getShort("stopApTime");
+    //String apip = preferences.getString("apIp", "192.168.15.1");
+    //String apmask = preferences.getString("apMask", "255.255.255.0");
+    String apip = config.getString("apIp");
+    String apmask = config.getString("apMask");
+    //preferences.end();
+
     // Setup webserver
     WiFi.persistent(false);
     WiFi.mode(WIFI_MODE_AP);
@@ -423,32 +394,9 @@ void setup() {
     WiFi.softAPConfig(ap_addr, ap_gateway, ap_subnet);
     apEnabled = true;
  
-    // Route for root / web page
+    // Initialize WebGUI
-    server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
+    webserver_init();
-        send_embedded_file("index.html", request);
+
-    });
-    // Route for all other defined pages
-    for (auto it = embeddedFiles.begin(); it != embeddedFiles.end(); it++) {
-        String uri = String("/") + it->first;
-        server.on(uri.c_str(), HTTP_GET, [it](AsyncWebServerRequest *request) {
-            send_embedded_file(it->first, request);
-        });
-    }
-    // API fast hack
-    server.on("/api/capabilities", HTTP_GET, [](AsyncWebServerRequest *request){
-        StaticJsonDocument<100> doc;
-        doc["apPwChange"] = "true";
-        String out;
-        serializeJson(doc, out);
-        request->send(200, "application/json", out);
-    });
-    server.on("/api/checkpass", HTTP_GET, [](AsyncWebServerRequest *request){
-        StaticJsonDocument<100> doc;
-        doc["status"] = "FAILED";
-        String out;
-        serializeJson(doc, out);
-        request->send(200, "application/json", out);
-    });
     server.on("/api/devicelist", HTTP_GET, [](AsyncWebServerRequest *request){
         // NMEA2000 device list
         AsyncResponseStream *response = request->beginResponseStream("application/json");
@@ -474,116 +422,8 @@ void setup() {
         response->print("]");
         request->send(response);
     });
-    server.on("/api/config", HTTP_GET, [](AsyncWebServerRequest *request){
-        StaticJsonDocument<512> doc;
-        doc["systemName"] = "Keypad1";
-        doc["logLevel"] = 0;
-        doc["version"] = VERSION;
-        doc["fwtype"] = "unknown";
-        doc["salt"] = "secret";
-        doc["AdminPassword"] = "********";
-        doc["useAdminPass"] = false;
-        doc["apEnable"] = true;
-        doc["apIp"] = "192.168.15.1";
-        doc["apMask"] = "255.255.255.0";
-        doc["apPassword"] = "********";
-        doc["stopApTime"] = 0;
-        doc["cpuSpeed"] = 160;
-        doc["tempFormat"] = "C";
-        doc["ledBrightness"] = led_brightness;
-        doc["ledRgbBrightness"] = rgb_brightness;
-        doc["tempFormat"] = "C";
-        doc["switchBank"] = 0;
-        doc["key1"] = keycode[BUTTON_1];
-        doc["key2"] = keycode[BUTTON_2];
-        doc["key3"] = keycode[BUTTON_3];
-        doc["key4"] = keycode[BUTTON_4];
-        doc["key5"] = keycode[BUTTON_5];
-        doc["key6"] = keycode[BUTTON_6];
-        doc["key1long"] = longcode[BUTTON_1];
-        doc["key2long"] = longcode[BUTTON_2];
-        doc["key3long"] = longcode[BUTTON_3];
-        doc["key4long"] = longcode[BUTTON_4];
-        doc["key5long"] = longcode[BUTTON_5];
-        doc["key6long"] = longcode[BUTTON_6];
-        doc["envInterval"] = 5;
-        String out;
-        serializeJson(doc, out);
-        request->send(200, "application/json", out);
-    });
-    server.on("/api/resetconfig", HTTP_GET, [](AsyncWebServerRequest *request){
-        StaticJsonDocument<100> doc;
-        doc["status"] = "FAILED";
-        String out;
-        serializeJson(doc, out);
-        request->send(200, "application/json", out);
-    });
-    server.on("/api/status", HTTP_GET, [](AsyncWebServerRequest *request){
-        StaticJsonDocument<200> doc;
-
-        doc["version"] = VERSION;
-
-        int cpu_freq = esp_clk_cpu_freq() / 1000000;
-        doc["cpuspeed"] =  String(cpu_freq) + "MHz";
-
-        char ssid[13];
-        snprintf(ssid, 13, "%04X%08X", (uint16_t)(chipid >> 32), (uint32_t)chipid);
-        doc["chipid"] = String(ssid);
-
-        doc["uptime"] = uptime_with_unit();
-        doc["heap"]=(long)xPortGetFreeHeapSize();
-        doc["temp"] = String(temp, 1);
-        doc["hum"] = String(hum, 1);
-        doc["status"] = "OK";
-        String out;
-        serializeJson(doc, out);
-        request->send(200, "application/json", out);
-    });
-    server.on("/api/fwinfo", HTTP_GET, [](AsyncWebServerRequest *request){
-        StaticJsonDocument<200> doc;
-        doc["version"] = VERSION;
-        doc["build_date"] = BUILD_DATE;
-        doc["build_time"] = BUILD_TIME;
-    });
-    server.on("/api/setconfig", HTTP_POST, [](AsyncWebServerRequest *request){
-        StaticJsonDocument<100> doc;
-        doc["status"] = "FAILED";
-        String out;
-        serializeJson(doc, out);
-        request->send(200, "application/json", out);
-    });
-    server.on("/api/update", HTTP_POST, [](AsyncWebServerRequest *request){
-        // the request handler is triggered after the upload has finished... 
-        // create the response, add header, and send response
-
-        StaticJsonDocument<100> doc;
-        doc["status"] = "FAILED";
-        String out;
-        serializeJson(doc, out);
-        request->send(200, "application/json", out);
-    }, [](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){
-        // this is the new image upload part
-        Serial.print("Retrieving firmware image named: ");
-        Serial.println(filename);
-
-        if (index == 0) {
-            if (! Update.begin(UPDATE_SIZE_UNKNOWN)) {
-                Update.printError(Serial);
-            }
-        }
-        if (Update.write(data, len) != len) {
-            Update.printError(Serial);
-        }
-        if (final) {
-            if (!Update.end(true)) {
-                Update.printError(Serial);
-            }
-        }
-
-    });
-
-    // TODO POST vom Client entgegennehmen
 
+    // Start HTTP Webserver
     server.begin();
 
     // NMEA2000 configuration

src/webserver.cpp

@@ -0,0 +1,190 @@
+#include "main.h"
+#include "webserver.h"
+#include <map>
+#include <AsyncTCP.h>
+#include <ArduinoJson.h>
+#include <esp32/clk.h> // for cpu frequency
+#include <Update.h>
+
+AsyncWebServer server(80);
+
+class EmbeddedFile;
+static std::map<String, EmbeddedFile*> embeddedFiles;
+class EmbeddedFile {
+  public:
+    const uint8_t *start;
+    int len;
+    String contentType;
+    EmbeddedFile(String name, String contentType, const uint8_t *start, int len) {
+      this->start = start;
+      this->len = len;
+      this->contentType = contentType;
+      embeddedFiles[name] = this;
+    }
+};
+
+#define EMBED_GZ_FILE(fileName, binName, contentType) \
+  extern const uint8_t  binName##_File[] asm("_binary_" #binName "_start"); \
+  extern const uint8_t  binName##_FileLen[] asm("_binary_" #binName "_size"); \
+  const EmbeddedFile binName##_Config(fileName,contentType,(const uint8_t*)binName##_File,(int)binName##_FileLen);
+#include "embeddedfiles.h"
+
+void send_embedded_file(String name, AsyncWebServerRequest *request)
+{
+    std::map<String, EmbeddedFile*>::iterator it = embeddedFiles.find(name);
+    if (it != embeddedFiles.end()) {
+        EmbeddedFile* found = it->second;
+        AsyncWebServerResponse *response = request->beginResponse(200, found->contentType, found->start, found->len);
+        response->addHeader(F("Content-Encoding"), F("gzip"));
+        request->send(response);
+    } else {
+        request->send(404, "text/plain", "Not found");
+    }
+}
+
+void webserver_init() {
+
+    // Route for root / web page
+    server.on("/", HTTP_GET, [](AsyncWebServerRequest *request) {
+        send_embedded_file("index.html", request);
+    });
+
+    // Route for all other defined pages
+    for (auto it = embeddedFiles.begin(); it != embeddedFiles.end(); it++) {
+        String uri = String("/") + it->first;
+        server.on(uri.c_str(), HTTP_GET, [it](AsyncWebServerRequest *request) {
+            send_embedded_file(it->first, request);
+        });
+    }
+
+    // API fast hack
+    server.on("/api/capabilities", HTTP_GET, [](AsyncWebServerRequest *request){
+        StaticJsonDocument<100> doc;
+        doc["apPwChange"] = "true";
+        String out;
+        serializeJson(doc, out);
+        request->send(200, "application/json", out);
+    });
+
+    server.on("/api/checkpass", HTTP_GET, [](AsyncWebServerRequest *request){
+        StaticJsonDocument<100> doc;
+        doc["status"] = "FAILED";
+        String out;
+        serializeJson(doc, out);
+        request->send(200, "application/json", out);
+    });
+
+    server.on("/api/config", HTTP_GET, [](AsyncWebServerRequest *request){
+        StaticJsonDocument<512> doc;
+        doc["systemName"] = "Keypad1";
+        doc["logLevel"] = 0;
+        doc["version"] = VERSION;
+        doc["fwtype"] = "unknown";
+        doc["salt"] = "secret";
+        doc["AdminPassword"] = "********";
+        doc["useAdminPass"] = false;
+        doc["apEnable"] = true;
+        doc["apIp"] = "192.168.15.1";
+        doc["apMask"] = "255.255.255.0";
+        doc["apPassword"] = "********";
+        doc["stopApTime"] = 0;
+        doc["cpuSpeed"] = 160;
+        doc["tempFormat"] = "C";
+        doc["ledBrightness"] = led_brightness;
+        doc["ledRgbBrightness"] = rgb_brightness;
+        doc["tempFormat"] = "C";
+        doc["switchBank"] = 0;
+        doc["key1"] = keycode[BUTTON_1];
+        doc["key2"] = keycode[BUTTON_2];
+        doc["key3"] = keycode[BUTTON_3];
+        doc["key4"] = keycode[BUTTON_4];
+        doc["key5"] = keycode[BUTTON_5];
+        doc["key6"] = keycode[BUTTON_6];
+        doc["key1long"] = longcode[BUTTON_1];
+        doc["key2long"] = longcode[BUTTON_2];
+        doc["key3long"] = longcode[BUTTON_3];
+        doc["key4long"] = longcode[BUTTON_4];
+        doc["key5long"] = longcode[BUTTON_5];
+        doc["key6long"] = longcode[BUTTON_6];
+        doc["envInterval"] = 5;
+        String out;
+        serializeJson(doc, out);
+        request->send(200, "application/json", out);
+    });
+
+    server.on("/api/resetconfig", HTTP_GET, [](AsyncWebServerRequest *request){
+        StaticJsonDocument<100> doc;
+        doc["status"] = "FAILED";
+        String out;
+        serializeJson(doc, out);
+        request->send(200, "application/json", out);
+    });
+
+    server.on("/api/status", HTTP_GET, [](AsyncWebServerRequest *request){
+        StaticJsonDocument<200> doc;
+
+        doc["version"] = VERSION;
+
+        int cpu_freq = esp_clk_cpu_freq() / 1000000;
+        doc["cpuspeed"] =  String(cpu_freq) + "MHz";
+
+        char ssid[13];
+        snprintf(ssid, 13, "%04X%08X", (uint16_t)(chipid >> 32), (uint32_t)chipid);
+        doc["chipid"] = String(ssid);
+
+        doc["uptime"] = uptime_with_unit();
+        doc["heap"]=(long)xPortGetFreeHeapSize();
+        doc["temp"] = String(temp, 1);
+        doc["hum"] = String(hum, 1);
+        doc["status"] = "OK";
+        String out;
+        serializeJson(doc, out);
+        request->send(200, "application/json", out);
+    });
+
+    server.on("/api/fwinfo", HTTP_GET, [](AsyncWebServerRequest *request){
+        StaticJsonDocument<200> doc;
+        doc["version"] = VERSION;
+        doc["build_date"] = BUILD_DATE;
+        doc["build_time"] = BUILD_TIME;
+    });
+
+    server.on("/api/setconfig", HTTP_POST, [](AsyncWebServerRequest *request){
+        StaticJsonDocument<100> doc;
+        doc["status"] = "FAILED";
+        String out;
+        serializeJson(doc, out);
+        request->send(200, "application/json", out);
+    });
+
+    server.on("/api/update", HTTP_POST, [](AsyncWebServerRequest *request){
+        // the request handler is triggered after the upload has finished... 
+        // create the response, add header, and send response
+
+        StaticJsonDocument<100> doc;
+        doc["status"] = "FAILED";
+        String out;
+        serializeJson(doc, out);
+        request->send(200, "application/json", out);
+    }, [](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){
+        // this is the new image upload part
+        Serial.print("Retrieving firmware image named: ");
+        Serial.println(filename);
+
+        if (index == 0) {
+            if (! Update.begin(UPDATE_SIZE_UNKNOWN)) {
+                Update.printError(Serial);
+            }
+        }
+        if (Update.write(data, len) != len) {
+            Update.printError(Serial);
+        }
+        if (final) {
+            if (!Update.end(true)) {
+                Update.printError(Serial);
+            }
+        }
+
+    });
+
+}