Merge branch 'develop' of https://git.schle.nz/fabian/esmp3 into develop

DEPLOY.md

@@ -0,0 +1,3 @@
+# Deploying a new version
+
+* Use `deploy.sh`.

README.md

@@ -145,3 +145,30 @@ will play. On December 2nd, track 2 followed by track 1. On
 December 3rd, tracks 3, 1 and 2. From December 24th on, track
 24 followed by tracks 1-23. So your kid will get the "daily track"
 first, followed by all previous tags in the right order.
+
+#### API
+You can send commands to ESMP3 using three different ways:
+* Through a websocket connection to `ws://<IP>/ws`.
+* Through the serial console using an USB cable.
+* Via HTTP POST request to `http://<IP>/cmd`, having the
+  command in the variable `cmd`.
+
+Supported commands are:
+| Command | Action |
+|---------|--------|
+| `play <PATH>` | Starts playing the given path. Path may be a path on the
+sd card or a http(s) URL of a webstream (direct links to mp3/4/ogg streams,
+PLS files, M3U files or podcast XML feeds are supported). |
+| `play` | Continues playing the previously played thing. |
+| `stop` | Stops playing. |
+| `volume=<X>` | Sets the volume to X (0-255). |
+| `track_prev` | Starts the previous track, if available. |
+| `track_next` | Starts the next track, if available. |
+| `track=<X>` | Starts playing track no. X of the currently playing album. |
+| `reset_vs1053` | Resets the VS1053 audio chip. |
+| `reboot` | Reboots ESMP3. |
+| `add_mapping=<ID>=<PATH>` | Adds a mapping between RFID card <ID> and path
+<PATH>. See `play` for valid path formats. |
+| `update` | Runs an update check. |
+| `debug=<0|1>` | Enables / disables debug messages. This value is persisted across reboots. |
+| `trace=<0|1>` | Enables / disables tracing messages. This value is also persisted across reboots. |

bin/update.manifest

@@ -0,0 +1,3 @@
+VERSION=1
+IMAGE_PATH=https://files.schle.nz/esmp3/firmware.bin
+IMAGE_MD5=00000000000000000000000000000000

deploy.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+#set -x
+set -e
+
+if ! git diff-index --quiet HEAD ; then
+	echo "Git isn't clean. Cant deploy."
+	exit 1
+fi
+
+branch_name=$(git symbolic-ref -q HEAD)
+branch_name=${branch_name##refs/heads/}
+branch_name=${branch_name:-HEAD}
+
+if [ "$branch_name" != "master" ]; then
+	echo "We are not on master branch. Can't deploy."
+	exit 1
+fi
+
+echo
+echo
+echo "Last tags:"
+vers=`git tag --sort=-version:refname | head -n 5`
+while read version; do
+	echo "  $version"
+done <<< "$vers"
+
+read -p "Version to generate: " VERSION
+
+OTA_VERSION=`grep "VERSION=" bin/update.manifest | cut -d"=" -f2`
+OTA_VERSION=$(( $OTA_VERSION + 1 ))
+
+sed -i.bak "s/#define OTA_VERSION .*/#define OTA_VERSION $OTA_VERSION/" include/config.h include/config.sample.h
+rm include/config.h.bak include/config.sample.h.bak
+
+PLATFORMIO_BUILD_FLAGS='-DVERSION=\"$VERSION\"' pio run -e deploy -t buildprog || exit 1
+
+cp .pio/build/deploy/firmware.bin bin/firmware.bin || exit 1
+
+sed -i.bak "s/VERSION=.*/VERSION=$OTA_VERSION/" bin/update.manifest
+MD5=`md5sum --binary bin/firmware.bin | cut -d" " -f1`
+sed -i.bak "s/IMAGE_MD5=.*/IMAGE_MD5=$MD5/" bin/update.manifest
+rm bin/update.manifest.bak
+
+echo; echo; echo; echo; echo
+echo "Please check the git diff, if everything looks okay:"
+git diff
+
+read -p "Press ENTER to continue, Ctrl-C to abort. " foo
+
+git add bin/firmware.bin bin/update.manifest
+git commit -m "Deploying version $VERSION."
+git tag -a -m "Deploying version $VERSION" $VERSION
+git push --follow-tags

include/config.sample.h

@@ -1,13 +1,21 @@
 #pragma once
 #include <Arduino.h>
 
+// This is a simple number indicating the version for the HTTP Updater.
+#define OTA_VERSION 1
+// Comment out to prevent automatic updates.
+#define OTA_UPDATE_URL "https://files.schle.nz/esmp3/update.manifest"
+#define OTA_CHECK_INTERVAL 12*60*60*1000 // 12 hours
+
 #define SHOW_DEBUG
 //#define SHOW_TRACE
 #define FTP_DEBUG
 #define DELAY_AFTER_DEBUG_AND_TRACE 0
 
-#define WIFI_SSID "---CHANGEME---"
-#define WIFI_PASS "---CHANGEME---"
+// Here you can define WiFi data to use. But actually, the better way to do
+// this is by using /_wifi.txt on the sd card.
+//#define WIFI_SSID "---CHANGEME---"
+//#define WIFI_PASS "---CHANGEME---"
 
 #define VS1053_SLEEP_DELAY 5000
 #define POSITION_SEND_INTERVAL 5000

include/controller.h

@@ -10,6 +10,8 @@ class Controller;
 #include "playlist.h"
 #include "playlist_manager.h"
 #include "http_server.h"
+
+#undef DEPRECATED
 #include <MFRC522.h>
 
 enum ControllerState { NORMAL, LOCKING, LOCKED };
@@ -32,6 +34,8 @@ private:
 	
 	unsigned long _last_rfid_scan_at = 0;
 	unsigned long _last_position_info_at = 0;
+	unsigned long _last_update_check_at = 0;
+	unsigned long _last_wifi_try_at = 0;
 	String _serial_buffer = String();
 	String _cmd_queue = "";
 	void _execute_command_ls(String path);

include/data_sources.h

@@ -16,8 +16,9 @@ public:
 	virtual void seek(size_t position) = 0;
 	virtual size_t size() = 0;
 	virtual void close() = 0;
-	virtual void skip_id3_tag() {};
 	virtual bool usable() = 0;
+	virtual int peek(int offset) = 0;
+	void skip_id3_tag();
 };
 
 class SDDataSource : public DataSource {
@@ -32,8 +33,8 @@ public:
 	void seek(size_t position);
 	size_t size();
 	void close();
-	void skip_id3_tag();
 	bool usable();
+	int peek(int offset=0);
 };
 
 class HTTPSDataSource : public DataSource {
@@ -41,6 +42,8 @@ private:
 	WiFiClient* _stream = NULL;
 	HTTPClientWrapper* _http = NULL;
 	uint32_t _position;
+	String _url;
+	void _init(String url, uint32_t offset);
 public:
 	HTTPSDataSource(String url, uint32_t offset=0);
 	~HTTPSDataSource();
@@ -51,4 +54,5 @@ public:
 	size_t size();
 	void close();
 	bool usable();
+	int peek(int offset=0);
 };

include/http_client_wrapper.h

@@ -34,4 +34,5 @@ public:
 	uint32_t getSize();
 	String readUntil(String sep);
 	String readLine();
+	int peek(int offset=0);
 };

include/main.h

@@ -0,0 +1,13 @@
+#pragma once
+#include <Preferences.h>
+
+void wifi_connect();
+
+extern bool debug_enabled;
+extern bool trace_enabled;
+extern Preferences prefs;
+
+extern const uint8_t file_index_html_start[] asm("_binary_src_webinterface_index_html_gz_start");
+extern const size_t file_index_html_size asm("_binary_src_webinterface_index_html_gz_size");
+extern const uint8_t file_timezones_json_start[] asm("_binary_src_webinterface_timezones_json_gz_start");
+extern const size_t file_timezones_json_size asm("_binary_src_webinterface_timezones_json_gz_size");

include/playlist.h

@@ -2,11 +2,19 @@
 #include <Arduino.h>
 #include <vector>
 #include <ArduinoJson.h>
+#include "main.h"
 #include "http_client_wrapper.h"
 
+enum PlaylistPersistence {
+	PERSIST_NONE,
+	PERSIST_TEMPORARY,
+	PERSIST_PERMANENTLY
+};
+
 struct PlaylistEntry {
 	String filename;
 	String title;
+	String id;
 	
 	bool operator<(PlaylistEntry p) { return title < p.title; }
 };
@@ -19,12 +27,14 @@ private:
 	bool _shuffled = false;
 	std::vector<PlaylistEntry> _files;
 	String _title = "";
+	String _path;
 	void _add_path(String path);
 	void _examine_http_url(String url);
 	void _parse_rss(HTTPClientWrapper* http);
 	void _parse_m3u(HTTPClientWrapper* http);
 	void _parse_pls(HTTPClientWrapper* http);
 public:
+	PlaylistPersistence persistence = PERSIST_TEMPORARY;
 	Playlist(String path);
 	void start();
 	uint16_t get_file_count();
@@ -34,9 +44,12 @@ public:
 	bool track_prev();
 	void track_restart();
 	bool set_track(uint8_t track);
+	void set_track_by_id(String id);
 	void reset();
+	String path();
 	bool is_empty();
-	String get_current_file();
+	bool get_current_file(String* dst);
+	String get_current_track_id();
 	uint32_t get_position();
 	void set_position(uint32_t p);
 	void shuffle(uint8_t random_offset=0);

include/playlist_manager.h

@@ -20,4 +20,5 @@ public:
 	String json();
 	bool add_mapping(String id, String folder);
 	String create_mapping_txt();
+	void persist(Playlist* p);
 };

include/updater.h

@@ -0,0 +1,10 @@
+#pragma once
+
+#include "http_client_wrapper.h"
+
+class Updater {
+public:
+	static void run();
+	static bool do_update(int cmd, String url, String expected_md5);
+	static bool read_line(String* dst, HTTPClientWrapper* http, String expected_key);
+};

partitions.csv

@@ -0,0 +1,6 @@
+# Custom partition table without SPIFFS.
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x220000,
+app1,     app,  ota_1,   0x230000,0x220000,

platformio.ini

@@ -8,16 +8,30 @@
 ; Please visit documentation for the other options and examples
 ; https://docs.platformio.org/page/projectconf.html
 
-[env:esp32]
+[platformio]
+default_envs = esp32
+
+[env]
 platform = espressif32
 board = esp-wrover-kit
 framework = arduino
 upload_speed = 512000
-build_flags=!./build_version.sh
-lib_deps = MFRC522
+lib_deps =
+	63 ; MFRC522
 	https://github.com/me-no-dev/ESPAsyncWebServer.git
-	ArduinoJSON
+	64 ; ArduinoJSON
 	6691 ; TinyXML
-upload_port = /dev/cu.SLAB_USBtoUART
-monitor_speed = 74480
+monitor_speed = 115200
+board_build.embed_files =
+	src/webinterface/timezones.json.gz
+	src/webinterface/index.html.gz
+;board_build.partitions = partitions.csv
 ;monitor_port = /dev/cu.wchusbserial1420
+extra_scripts =
+	post:tools/post_build.py
+
+[env:esp32]
+build_flags=!./build_version.sh
+upload_port = /dev/cu.SLAB_USBtoUART
+
+[env:deploy]

src/controller.cpp

@@ -1,8 +1,10 @@
 #include "controller.h"
+#include "main.h"
 #include "spi_master.h"
 #include "config.h"
 #include "playlist.h"
 #include "http_server.h"
+#include "updater.h"
 #include <ArduinoJson.h>
 
 Controller::Controller(Player* p, PlaylistManager* playlist_manager) {
@@ -34,7 +36,6 @@ void Controller::register_http_server(HTTPServer* h) {
 }
 
 void Controller::loop() {
-	TRACE("Controller::loop()...\n");
 	unsigned long now = millis();
 	if ((_last_rfid_scan_at < now - RFID_SCAN_INTERVAL) || (now < _last_rfid_scan_at)) {
 		_check_rfid();
@@ -50,7 +51,20 @@ void Controller::loop() {
 		process_message(_cmd_queue);
 		_cmd_queue = "";
 	}
-	TRACE("Controller::loop() done.\n");
+	
+	#ifdef OTA_UPDATE_URL
+	if (!player->is_playing() && _last_update_check_at < now && _last_update_check_at + OTA_CHECK_INTERVAL < now) {
+		Updater::run();
+	} else {
+		_last_update_check_at = now;
+	}
+	#endif
+	
+	if (!player->is_playing() && !WiFi.isConnected() && _last_wifi_try_at < now && _last_wifi_try_at + 5*60*1000 < now) {
+		wifi_connect();
+	} else {
+		_last_wifi_try_at = now;
+	}
 }
 
 uint32_t Controller::_get_rfid_card_uid() {
@@ -69,7 +83,7 @@ uint32_t Controller::_get_rfid_card_uid() {
 }
 
 void Controller::_check_rfid() {
-	TRACE("check_rfid running...\n");
+	//TRACE("check_rfid running...\n");
 	MFRC522::StatusCode status;
 	if (_rfid_present) {
 		byte buffer[2];
@@ -128,7 +142,8 @@ void Controller::_check_rfid() {
 				if (time.tm_mon == 11) { // tm_mon is "months since january", so 11 means december.
 					pl->advent_shuffle(time.tm_mday);
 				} else {
-					// TODO
+					DEBUG("Album is in advent mode, but it isn't december (yet). Not playing.\n");
+					return;
 				}
 			} else if (data.indexOf("[random]") != -1 && pl->is_fresh()) {
 				pl->shuffle();
@@ -184,7 +199,7 @@ String Controller::_read_rfid_data() {
 		case MFRC522::PICC_TYPE_MIFARE_4K: sectors = 40; break;
 		default: INFO("Unknown PICC type %s\n", String(MFRC522::PICC_GetTypeName(type)).c_str());
 	}
-	
+	sectors = 2; // Pretend we have only two sectors, so we read only sector #1.
 	int good_key_index = -1;
 	for (uint8_t sector=1; sector<sectors; sector++) {
 		uint8_t blocks = (sector < 32) ? 4 : 16;
@@ -228,8 +243,6 @@ String Controller::_read_rfid_data() {
 }
 
 void Controller::_check_serial() {
-	TRACE("check_serial running...\n");
-
 	if (Serial.available() > 0) {
 		char c = Serial.read();
 		Serial.printf("%c", c);
@@ -250,13 +263,8 @@ bool Controller::process_message(String cmd) {
 	if (cmd.startsWith("play ")) {
 		Playlist* p = pm->get_playlist_for_folder(cmd.substring(5));
 		player->play(p);
-	//} else if (cmd.equals("ls")) {
-	//	_execute_command_ls("/");
-	//} else if (cmd.startsWith("ls ")) {
-	//	_execute_command_ls(cmd.substring(3));
 	} else if (cmd.equals("play")) {
 		player->play();
-	
 	} else if (cmd.equals("stop")) {
 		player->stop();
 	} else if (cmd.equals("help")) {
@@ -289,6 +297,28 @@ bool Controller::process_message(String cmd) {
 		String folder = rest.substring(idx + 1);
 		pm->add_mapping(id, folder);
 		send_playlist_manager_status();
+	#ifdef OTA_UPDATE_URL
+	} else if (cmd.equals("update")) {
+		Updater::run();
+	#endif
+	} else if (cmd.startsWith("trace=")) {
+		int val = cmd.substring(6).toInt();
+		if (val==0) {
+			trace_enabled = false;
+			prefs.putBool("trace_enabled", false);
+		} else if (val==1) {
+			trace_enabled = true;
+			prefs.putBool("trace_enabled", true);
+		}
+	} else if (cmd.startsWith("debug=")) {
+		int val = cmd.substring(6).toInt();
+		if (val==0) {
+			debug_enabled = false;
+			prefs.putBool("debug_enabled", false);
+		} else if (val==1) {
+			debug_enabled = true;
+			prefs.putBool("debug_enabled", true);
+		}
 	} else {
 		ERROR("Unknown command: %s\n", cmd.c_str());
 		return false;
@@ -317,8 +347,6 @@ void Controller::_execute_command_help() {
 }
 
 void Controller::_check_buttons() {
-	TRACE("check_buttons running...\n");
-
 	if (BTN_PREV() && _debounce_button(0)) {
 		if (_state == NORMAL) {
 			player->track_prev();
@@ -362,6 +390,22 @@ String Controller::json() {
 	rfid["data"] = _last_rfid_data;
 	json["uptime"] = millis() / 1000;
 	json["free_heap"] = ESP.getFreeHeap();
+	JsonObject versions = json.createNestedObject("versions");
+	versions["ota"] = OTA_VERSION;
+	#ifdef VERSION
+	versions["release"] = VERSION;
+	#else
+	versions["release"] = "unknown";
+	#endif
+	
+	JsonObject wifi = json.createNestedObject("wifi");
+	if (WiFi.isConnected()) {
+		wifi["connected"] = true;
+		wifi["ssid"] = WiFi.SSID();
+		wifi["rssi"] = WiFi.RSSI();
+	} else {
+		wifi["connected"] = false;
+	}
 	return json.as<String>();
 }
 

src/data_sources.cpp

@@ -1,5 +1,29 @@
 #include "data_sources.h"
 
+void DataSource::skip_id3_tag() {
+	if (peek(0)=='I' && peek(1)=='D' && peek(2)=='3') {
+		DEBUG("ID3 tag found\n");
+		// Skip ID3 tag marker
+		read(); read(); read();
+		// Skip ID3 tag version
+		read(); read();
+		byte tags = read();
+		bool footer_present = tags & 0x10;
+		DEBUG("ID3 footer found: %d\n", footer_present);
+		uint32_t offset = 0;
+		for (byte i=0; i<4; i++) {
+			offset <<= 7;
+			offset |= (0x7F & read());
+		}
+		offset += 10;
+		if (footer_present) offset += 10;
+		DEBUG("ID3 tag length is %d bytes.\n", offset);
+		seek(offset);
+	} else {
+		DEBUG("No ID3 tag found\n");
+	}
+}
+
 ////////////// SDDataSource //////////////
 SDDataSource::SDDataSource(String file) { _file = SD.open(file, "r"); }
 SDDataSource::~SDDataSource() { if (_file) _file.close(); }
@@ -10,35 +34,24 @@ void SDDataSource::seek(size_t position) { _file.seek(position); }
 size_t SDDataSource::size() { return _file.size(); }
 void SDDataSource::close() { _file.close(); }
 bool SDDataSource::usable() { return _file; }
-
-void SDDataSource::skip_id3_tag() {
-	uint32_t original_position = _file.position();
-	uint32_t offset = 0;
-	if (_file.read()=='I' && _file.read()=='D' && _file.read()=='3') {
-		DEBUG("ID3 tag found\n");
-		// Skip ID3 tag version
-		_file.read(); _file.read();
-		byte tags = _file.read();
-		bool footer_present = tags & 0x10;
-		DEBUG("ID3 footer found: %d\n", footer_present);
-		for (byte i=0; i<4; i++) {
-			offset <<= 7;
-			offset |= (0x7F & _file.read());
-		}
-		offset += 10;
-		if (footer_present) offset += 10;
-		DEBUG("ID3 tag length is %d bytes.\n", offset);
-		_file.seek(offset);
-	} else {
-		DEBUG("No ID3 tag found\n");
-		_file.seek(original_position);
-	}
+int SDDataSource::peek(int offset) {
+	if (offset==0) return _file.peek();
+	size_t start_position = _file.position();
+	_file.seek(start_position + offset);
+	int result = _file.peek();
+	_file.seek(start_position);
+	return result;
 }
 
 
-
 ////////////// HTTPSDataSource //////////////
 HTTPSDataSource::HTTPSDataSource(String url, uint32_t offset) {
+	_url = url;
+	_init(url, offset);
+}
+
+void HTTPSDataSource::_init(String url, uint32_t offset) {
+	_url = url;
 	_http = new HTTPClientWrapper();
 	if (!_http->get(url, offset)) return;
 	_position = 0;
@@ -52,6 +65,7 @@ bool HTTPSDataSource::usable() { return _http; }
 size_t HTTPSDataSource::read(uint8_t* buf, size_t len) { size_t result = _http->read(buf, len); _position += result; return result; }
 int HTTPSDataSource::read() { int b = _http->read(); if (b>=0) _position++; return b; }
 size_t HTTPSDataSource::position() { return _position; }
-void HTTPSDataSource::seek(size_t position) { return; /* TODO */ }
+void HTTPSDataSource::seek(size_t position) { _http->close(); delete _http; _init(_url, position); }
 size_t HTTPSDataSource::size() { return _http->getSize(); }
 void HTTPSDataSource::close() { _http->close(); }
+int HTTPSDataSource::peek(int offset) { return _http->peek(offset); }

src/http_client_wrapper.cpp

@@ -73,6 +73,9 @@ bool HTTPClientWrapper::_request(String method, String url, uint32_t offset, uin
 		return false;
 	}
 
+	_buffer_position = 0;
+	_buffer_length = 0;
+	
 	_connected = true;
 	_length = _http->getSize() + offset;
 	if (_http->hasHeader("Content-Type")) {
@@ -208,3 +211,12 @@ String HTTPClientWrapper::readUntil(String sep) {
 String HTTPClientWrapper::readLine() {
 	return readUntil("\n\r");
 }
+
+int HTTPClientWrapper::peek(int offset) {
+	if (_buffer_position >= _buffer_length) _fill_buffer();
+
+	if (_buffer_position + offset < 0 || _buffer_position + offset >= _buffer_length) {
+		return -1;
+	}
+	return _buffer[_buffer_position + offset];
+}

src/http_server.cpp

@@ -1,7 +1,7 @@
 #include "http_server.h"
+#include "main.h"
 #include "spi_master.h"
 #include <ESPmDNS.h>
-#include <SPIFFS.h>
 
 HTTPServer::HTTPServer(Player* p, Controller* c) {
 	_player = p;
@@ -11,14 +11,42 @@ HTTPServer::HTTPServer(Player* p, Controller* c) {
 	_server->addHandler(ws);
 	ws->onEvent([&](AsyncWebSocket * server, AsyncWebSocketClient * client, AwsEventType type, void * arg, uint8_t *data, size_t len){this->_onEvent(server, client, type, arg, data, len);});
 	
-	_server->on("/", HTTP_GET, [&](AsyncWebServerRequest* req) {req->send(SPIFFS, "/index.html", "text/html");});
-	_server->on("/upload", HTTP_POST, [](AsyncWebServerRequest* req) {req->send(200); }, ([&](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final){this->_handle_upload(request, filename, index, data, len, final);}));
-	_server->on("/_mapping.txt", HTTP_GET, [&](AsyncWebServerRequest* req) {req->send(200, "text/plain", _controller->pm->create_mapping_txt());});
-	_server->on("/player.json", HTTP_GET, [&](AsyncWebServerRequest* req) {req->send(200, "application/json", _controller->player->json());});
-	_server->on("/playlist_manager.json", HTTP_GET, [&](AsyncWebServerRequest* req) {req->send(200, "application/json", _controller->pm->json());});
-	_server->on("/controller.json", HTTP_GET, [&](AsyncWebServerRequest* req) {req->send(200, "application/json", _controller->json());});
-	_server->on("/position.json", HTTP_GET, [&](AsyncWebServerRequest* req) {req->send(200, "application/json", _controller->player->position_json());});
-	_server->on("/cmd", HTTP_POST, [&](AsyncWebServerRequest *req) {req->send(200); }, NULL, [&](AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) {_controller->queue_command((char*)data);});
+	_server->on("/", HTTP_GET, [&](AsyncWebServerRequest* req) {
+		req->send_P(200, "text/html", file_index_html_start, file_index_html_size);
+	});
+	_server->on("/timezone.json", HTTP_GET, [&](AsyncWebServerRequest* req) {
+		AsyncWebServerResponse* res = req->beginResponse_P(200, "application/json", file_timezones_json_start, file_timezones_json_size);
+		res->addHeader("Content-Encoding", "gzip");
+		req->send(res);
+	});
+	_server->on("/upload", HTTP_POST, [](AsyncWebServerRequest* req) {
+		req->send(200); 
+	}, [&](AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final) {
+		this->_handle_upload(request, filename, index, data, len, final);
+	});
+	_server->on("/_mapping.txt", HTTP_GET, [&](AsyncWebServerRequest* req) {
+		req->send(200, "text/plain", _controller->pm->create_mapping_txt());
+	});
+	_server->on("/player.json", HTTP_GET, [&](AsyncWebServerRequest* req) {
+		req->send(200, "application/json", _controller->player->json());
+	});
+	_server->on("/playlist_manager.json", HTTP_GET, [&](AsyncWebServerRequest* req) {
+		req->send(200, "application/json", _controller->pm->json());
+	});
+	_server->on("/controller.json", HTTP_GET, [&](AsyncWebServerRequest* req) {
+		req->send(200, "application/json", _controller->json());
+	});
+	_server->on("/position.json", HTTP_GET, [&](AsyncWebServerRequest* req) {
+		req->send(200, "application/json", _controller->player->position_json());
+	});
+	_server->on("/cmd", HTTP_POST, [&](AsyncWebServerRequest *req) {
+		if (req->hasParam("cmd", true)) {
+			_controller->queue_command(req->getParam("cmd", true)->value());
+			req->send(200);
+		} else {
+			req->send(400);
+		}
+	});
 	_server->begin();
 	MDNS.addService("http", "tcp", 80);
 }

src/main.cpp

@@ -2,14 +2,17 @@
 #include <SPI.h>
 #include <SD.h>
 #include <WiFi.h>
+#include <WiFiMulti.h>
 #include <ESPmDNS.h>
-#include <SPIFFS.h>
+#include <Preferences.h>
+#include "main.h"
 #include "config.h"
 #include "controller.h"
 #include "player.h"
 #include "spi_master.h"
 #include "http_server.h"
 #include "playlist_manager.h"
+#include "updater.h"
 
 Controller* controller;
 Player* player;
@@ -18,31 +21,67 @@ HTTPServer* http_server;
 
 uint8_t SPIMaster::state = 0;
 
-bool connect_to_wifi(String ssid, String pass) {
-	TRACE("Connecting to wifi \"%s\"...\n", ssid.c_str());
-	WiFi.mode(WIFI_AP_STA);
-	WiFi.begin(ssid.c_str(), pass.c_str());
-	if (WiFi.waitForConnectResult() != WL_CONNECTED) {
-		DEBUG("Could not connect to wifi \"%s\".\n", ssid.c_str());
-		return false;
-	} else {
-		INFO("Connected to \"%s\". IP address: %s\n", ssid.c_str(), WiFi.localIP().toString().c_str());
+bool debug_enabled = true;
+bool trace_enabled = false;
+Preferences prefs;
+
+void wifi_connect() {
+	INFO("Connecting to WiFi...\n");
+	WiFiMulti wifi;
+	SPIMaster::select_sd();
+	if (SD.exists("/_wifis.txt")) {
+		DEBUG("Reading /_wifis.txt\n");
+		File f = SD.open("/_wifis.txt", "r");
+		while (String line = f.readStringUntil('\n')) {
+			if (line.length()==0) {
+				break;
+			} else if (line.startsWith("#") || line.indexOf('=')==-1) {
+				continue;
+			}
+			String ssid = line.substring(0, line.indexOf('='));
+			String pass = line.substring(line.indexOf('=')+1);
+			wifi.addAP(ssid.c_str(), pass.c_str());
+		}
+		f.close();
+	} else {
+		File f = SD.open("/_wifis.txt", "w");
+		f.print("# WiFi definitions. Syntax: <SSID>=<PASS>. Lines starting with # are ignored. Example:\n# My WiFi=VerySecretPassword\n");
+		f.close();
+	}
+	SPIMaster::select_sd(false);
+
+	#if defined(WIFI_SSID) and defined(WIFI_PASS)
+	wifi.addAP(WIFI_SSID, WIFI_PASS);
+	#endif
+
+	if (wifi.run() == WL_CONNECTED) {
+		DEBUG("Connected to WiFi \"%s\".\n", WiFi.SSID().c_str());
+	} else {
+		DEBUG("No WiFi connection!\n");
 	}
-	return true;
 }
 
 void setup() {
-	delay(500);
-	Serial.begin(74880);
+	// Small delay to give the Serial console a bit of time to connect.
+	delay(1000);
+	Serial.begin(115200);
 	Serial.println("Starting...");
 	Serial.println("Started.");
 	INFO("Starting.\n");
 	#ifdef VERSION
-		INFO("ESMP3 version %s\n", VERSION);
+		INFO("ESMP3 version %s (OTA_VERSION %d)\n", VERSION, OTA_VERSION);
 	#else
-		INFO("ESMP3, version unknown\n");
+		INFO("ESMP3, version unknown (OTA_VERSION %d)\n", OTA_VERSION);
 	#endif
 	INFO("Initializing...\n");
+	prefs.begin("esmp3");
+	debug_enabled = prefs.getBool("debug_enabled", true);
+	trace_enabled = prefs.getBool("trace_enabled", false);
+
+	PIN_SPEAKER_L_SETUP();
+	PIN_SPEAKER_R_SETUP();
+	PIN_SPEAKER_L(LOW);
+	PIN_SPEAKER_R(LOW);
 
 	DEBUG("Setting up SPI...\n");
 	SPI.begin();
@@ -60,9 +99,6 @@ void setup() {
 	}
 	spi->select_sd(false);
 
-	DEBUG("Starting SPIFFS...\n");
-	SPIFFS.begin(true);
-
 	DEBUG("Initializing PlaylistManager...\n");
 	pm = new PlaylistManager();
 	
@@ -71,35 +107,7 @@ void setup() {
     controller = new Controller(player, pm);
     INFO("Player and controller initialized.\n");
 
-	bool connected = false;
-	INFO("Connecting to WiFi...\n");
-	SPIMaster::select_sd();
-	if (SD.exists("/_wifis.txt")) {
-		DEBUG("Reading /_wifis.txt\n");
-		File f = SD.open("/_wifis.txt", "r");
-		while (String line = f.readStringUntil('\n')) {
-			if (line.length()==0 || line.startsWith("#") || line.indexOf('=')==-1) {
-				continue;
-			}
-			String ssid = line.substring(0, line.indexOf('='));
-			String pass = line.substring(line.indexOf('=')+1);
-			connected = connect_to_wifi(ssid, pass);
-			if (connected) break;
-		}
-		f.close();
-	} else {
-		File f = SD.open("/_wifis.txt", "w");
-		f.print("# WiFi definitions. Syntax: <SSID>=<PASS>. Lines starting with # are ignored. Example:\n# My WiFi=VerySecretPassword\n");
-		f.close();
-	}
-	SPIMaster::select_sd(false);
-	if (!connected) {
-		DEBUG("Trying hardcoded WiFi data...\n");
-		connected = connect_to_wifi(WIFI_SSID, WIFI_PASS);
-	}
-	if (!connected) {
-		INFO("No WiFi connection!\n");
-	}
+    wifi_connect();
 	
 	MDNS.begin("esmp3");
 
@@ -119,6 +127,12 @@ void setup() {
 		INFO("Could not fetch current time via NTP.\n");
 	}
 
+	#ifdef VERSION
+		INFO("ESMP3 version %s (OTA_VERSION %d)\n", VERSION, OTA_VERSION);
+	#else
+		INFO("ESMP3, version unknown (OTA_VERSION %d)\n", OTA_VERSION);
+	#endif
+	
     INFO("Initialization completed.\n");
 }
 

src/player.cpp

@@ -10,8 +10,6 @@ Player::Player(SPIMaster* s) {
 	_spi = s;
 	PIN_VS1053_XRESET_SETUP();
 	PIN_VS1053_XRESET(HIGH);
-	PIN_SPEAKER_L_SETUP();
-	PIN_SPEAKER_R_SETUP();
 	_speaker_off();
 	_spi->disable();
 	PIN_VS1053_DREQ_SETUP();
@@ -464,14 +462,14 @@ void Player::set_volume(uint8_t vol, bool save) {
 
 void Player::vol_up() {
 	if (!is_playing()) return;
-	uint8_t vol = _volume + VOLUME_STEP;
+	uint16_t vol = _volume + VOLUME_STEP;
 	if (vol > VOLUME_MAX) vol=VOLUME_MAX;
 	set_volume(vol);
 }
 
 void Player::vol_down() {
 	if (!is_playing()) return;
-	uint8_t vol = _volume - VOLUME_STEP;
+	int16_t vol = _volume - VOLUME_STEP;
 	if (vol < VOLUME_MIN) vol=VOLUME_MIN;
 	set_volume(vol);
 }
@@ -534,8 +532,12 @@ bool Player::play() {
 	if (_state != idle) return false;
 	if (_current_playlist == NULL) return false;
 	if (_current_playlist->get_file_count()==0) return false;
+	_speaker_on();
 	_current_playlist->start();
-	String file = _current_playlist->get_current_file();
+	String file;
+	if (!_current_playlist->get_current_file(&file)) {
+		return false;
+	}
 	uint32_t position = _current_playlist->get_position();
 	_state = playing;
 	_play_file(file, position);
@@ -610,6 +612,7 @@ void Player::stop(bool turn_speaker_off) {
 	if (_state != playing) return;
 	INFO("Stopping...\n");
 	_current_playlist->set_position(_current_play_position);
+	_controller->pm->persist(_current_playlist);
 	
 	_state = stopping;
 	_stop_delay = 0;

src/playlist.cpp

@@ -7,7 +7,9 @@
 #include <TinyXML.h>
 
 Playlist::Playlist(String path) {
+	_path = path;
 	if (path.startsWith("/")) {
+		persistence = PERSIST_TEMPORARY;
 		_add_path(path);
 	} else if (path.startsWith("http")) {
 		_examine_http_url(path);
@@ -44,7 +46,7 @@ void Playlist::_add_path(String path) {
 			  ext.equals(".mpa"))) {
 			TRACE("    Adding entry %s\n", entry.name());
 			String title = filename.substring(0, filename.length() - 4);
-			_files.push_back({.filename=entry.name(), .title=title});
+			_files.push_back({.filename=entry.name(), .title=title, .id=String(_files.size())});
 			bool non_ascii_chars = false;
 			for(int i=0; i<filename.length(); i++) {
 				char c = filename.charAt(i);
@@ -77,10 +79,13 @@ void Playlist::_examine_http_url(String url) {
 	if (ct.startsWith("audio/x-mpegurl")) {
 		_parse_m3u(http);
 	} else if (ct.startsWith("audio/")) {
-		_files.push_back({.filename=url, .title=url});
-	} else if (ct.startsWith("application/rss+xml")) {
+		persistence = PERSIST_NONE;
+		_files.push_back({.filename=url, .title=url, .id="none"});
+	} else if (ct.startsWith("application/rss+xml") || ct.startsWith("application/xml")) {
+		persistence = PERSIST_PERMANENTLY;
 		_parse_rss(http);
 	} else if (ct.startsWith("application/pls+xml")) {
+		persistence = PERSIST_PERMANENTLY;
 		_parse_pls(http);
 	} else {
 		ERROR("Unknown content type %s.\n", ct.c_str());
@@ -95,39 +100,51 @@ String xml_title = "";
 String xml_album_title = "";
 String xml_url = "";
 String xml_enclosure_url = "";
+String xml_guid = "";
 bool xml_enclosure_is_audio = false;
 
 void xmlcb(uint8_t status, char* tagName, uint16_t tagLen, char* data, uint16_t dataLen) {
 	String tag(tagName);
 	if (status & STATUS_START_TAG) xml_last_tag = tag;
 
+	if (trace_enabled) {
+		if (status & STATUS_START_TAG) {
+			TRACE("Start of tag: %s\n", tagName);
+		} else if (status & STATUS_END_TAG) {
+			TRACE("End of tag: %s\n", tagName);
+		}
+	}
+
 	if (tag.equals("/rss/channel/title") && (status & STATUS_TAG_TEXT)) {
 		xml_album_title = data;
-	} else if (tag.endsWith("/item") && (status & STATUS_START_TAG)) {
-		xml_title = "";
-		xml_url = "";
-	} else if (tag.endsWith("/item/title") && (status & STATUS_TAG_TEXT)) {
+	} else if (tag.endsWith("/title") && (status & STATUS_TAG_TEXT)) {
 		xml_title = String(data);
+	} else if (tag.endsWith("/guid") && (status & STATUS_TAG_TEXT)) {
+		xml_guid = data;
 	//} else if (xml_last_tag.endsWith("/item/enclosure") && (status & STATUS_ATTR_TEXT)) {
 	//	DEBUG("tag: %s, data: %s\n", tag.c_str(), data);
-	} else if (xml_last_tag.endsWith("/item/enclosure") && tag.equals("type") && (status & STATUS_ATTR_TEXT) && String(data).indexOf("audio/")>=0) {
+	} else if (xml_last_tag.endsWith("/enclosure") && tag.equals("type") && (status & STATUS_ATTR_TEXT) && String(data).indexOf("audio/")>=0) {
 		DEBUG("enclosure is audio\n");
 		xml_enclosure_is_audio = true;
-	} else if (xml_last_tag.endsWith("/item/enclosure") && tag.equals("url") && (status & STATUS_ATTR_TEXT)) {
+	} else if (xml_last_tag.endsWith("/enclosure") && tag.equals("url") && (status & STATUS_ATTR_TEXT)) {
 		DEBUG("found url\n");
 		xml_enclosure_url = String(data);
-	} else if (tag.endsWith("/item/enclosure") && (status & STATUS_END_TAG)) {
+	} else if (tag.endsWith("/enclosure") && (status & STATUS_END_TAG)) {
 		DEBUG("end of enclosure. xml_enclosure_is_audio: %d, xml_enclosure_url: %s\n", xml_enclosure_is_audio, xml_enclosure_url.c_str());
 		if (xml_enclosure_is_audio && xml_enclosure_url.length()>0) {
 			xml_url = xml_enclosure_url;
 		}
 		xml_enclosure_is_audio = false;
 		xml_enclosure_url = "";
-	} else if (tag.endsWith("/item") && (status & STATUS_END_TAG)) {
+	} else if (tag.endsWith("/item") && (status & STATUS_END_TAG || status & STATUS_START_TAG)) {
 		if (xml_title.length()>0 && xml_url.length()>0) {
+			if (xml_files_ptr->size() > 20) return;
 			DEBUG("Adding playlist entry: '%s' => '%s'\n", xml_title.c_str(), xml_url.c_str());
-			xml_files_ptr->push_back({xml_url, xml_title});
+			xml_files_ptr->insert(xml_files_ptr->begin(), {.filename=xml_url, .title=xml_title, .id=xml_guid});
 		}
+		xml_title = "";
+		xml_url = "";
+		xml_guid = "";
 	}
 }
 
@@ -148,6 +165,7 @@ void Playlist::_parse_rss(HTTPClientWrapper* http) {
 	while ((i = http->read()) >= 0) {
 		xml.processChar(i);
 	}
+	_current_track = _files.size()-1;
 	xml_files_ptr = NULL;
 	if (xml_album_title.length()>0) {
 		_title = xml_album_title;
@@ -166,7 +184,7 @@ void Playlist::_parse_m3u(HTTPClientWrapper* http) {
 	do {
 		i = http->read();
 		char c = i;
-		if (i>=-1 && c!='\r' && c!='\n') {
+		if (i>=0 && c!='\r' && c!='\n') {
 			line += c;
 		} else {
 			if (line.equals("#EXTM3U")) {
@@ -180,7 +198,7 @@ void Playlist::_parse_m3u(HTTPClientWrapper* http) {
 				}
 			} else if (line.startsWith("http")) {
 				if (title.length()==0) title = line;
-				_files.push_back({.filename=line, .title=title});
+				_files.push_back({.filename=line, .title=title, .id="none"});
 				title = "";
 			}
 			line = "";
@@ -222,7 +240,7 @@ void Playlist::_parse_pls(HTTPClientWrapper* http) {
 		}
 
 		if (title.length()>0 && url.length()>0) {
-			_files.push_back({.filename=url, .title=title});
+			_files.push_back({.filename=url, .title=title, .id="none"});
 			last_index = -1;
 			title = "";
 			url = "";
@@ -231,6 +249,10 @@ void Playlist::_parse_pls(HTTPClientWrapper* http) {
 	// don't close http at the end
 }
 
+String Playlist::path() {
+	return _path;
+}
+
 uint16_t Playlist::get_file_count() {
 	return _files.size();
 }
@@ -274,6 +296,15 @@ bool Playlist::set_track(uint8_t track) {
 	return false;
 }
 
+void Playlist::set_track_by_id(String id) {
+	for (int i=0; i<_files.size(); i++) {
+		if (id.equals(_files[i].id)) {
+			set_track(i);
+			return;
+		}
+	}
+}
+
 void Playlist::track_restart() {
 	_position = 0;
 }
@@ -294,12 +325,19 @@ void Playlist::shuffle(uint8_t random_offset) {
 }
 
 void Playlist::advent_shuffle(uint8_t day) {
-	if (day > 24) day = 24;
+	TRACE("advent_shuffle running...\n");
+	
+	// Not enough songs till the current day? Play all songs in the default order.
+	if (day > _files.size()) {
+		return;
+	}
+
+	// We are in the "different playlist every day" mode. So we don't persist it in order to not miss changes.
+	persistence = PERSIST_NONE;
 
-	if (day > _files.size()) return;
 	
 	_files.insert(_files.begin(), _files[day - 1]);
-	_files.erase(_files.begin() + day - 1, _files.end());
+	_files.erase(_files.begin() + day, _files.end());
 }
 
 void Playlist::reset() {
@@ -310,8 +348,20 @@ void Playlist::reset() {
 	_started = false;
 }
 
-String Playlist::get_current_file() {
-	return _files[_current_track].filename;
+String Playlist::get_current_track_id() {
+	if (_current_track > _files.size()) {
+		return "";
+	}
+	return _files[_current_track].id;
+}
+
+bool Playlist::get_current_file(String* dst) {
+	if (_current_track > _files.size()) {
+		return false;
+	} else {
+		dst->concat(_files[_current_track].filename);
+		return true;
+	}
 }
 
 uint32_t Playlist::get_position() {
@@ -340,6 +390,7 @@ void Playlist::json(JsonObject json) {
 		JsonObject o = files.createNestedObject();
 		o["filename"] = entry.filename;
 		o["title"] = entry.title;
+		o["id"] = entry.id;
 	}
 	json["current_track"] = _current_track;
 	json["has_track_next"] = has_track_next();

src/playlist_manager.cpp

@@ -104,10 +104,40 @@ Playlist* PlaylistManager::get_playlist_for_id(String id) {
 }
 
 Playlist* PlaylistManager::get_playlist_for_folder(String folder) {
+	Playlist* p;
 	if (!_playlists.count(folder)) {
-		_playlists[folder] = new Playlist(folder);
+		p = new Playlist(folder);
+		_playlists[folder] = p;
+		if (p->persistence == PERSIST_PERMANENTLY) {
+			String search = folder;
+			search += "=";
+			SPIMaster::select_sd();
+			if (SD.exists("/_positions.txt")) {
+				File f = SD.open("/_positions.txt", "r");
+				while (true) {
+					String s = f.readStringUntil('\n');
+					if (s.length()==0) break;
+					if (s.startsWith(search)) {
+						s = s.substring(search.length());
+						int idx = s.indexOf(',');
+						String title_index = s.substring(0, idx);
+						uint32_t position = s.substring(idx+1).toInt();
+						p->set_track_by_id(title_index);
+						p->set_position(position);
+						break;
 					}
-	return _playlists[folder];
+				}
+				f.close();
+			}
+			SPIMaster::select_sd(false);
+		}
+	} else {
+		p = _playlists[folder];
+		if (p->persistence == PERSIST_NONE) {
+			p->reset();
+		}
+	}
+	return p;
 }
 
 void PlaylistManager::dump_ids() {
@@ -164,3 +194,46 @@ String PlaylistManager::create_mapping_txt() {
 	}
 	return s;
 }
+
+void PlaylistManager::persist(Playlist* p) {
+	if (p->persistence == PERSIST_NONE) {
+		_playlists.erase(p->path());
+		return;
+	} else if (p->persistence == PERSIST_PERMANENTLY) {
+	
+		String search = p->path();
+		search += '=';
+		
+		bool old_file_existed = false;
+		
+		SPIMaster::select_sd();
+		if (SD.exists("_positions.txt")) {
+			SD.rename("/_positions.txt", "/_positions.temp.txt");
+			old_file_existed = true;
+		}
+		File dst = SD.open("/_positions.txt", "w");
+		
+		if (old_file_existed) {
+			File src = SD.open("/_positions.temp.txt", "r");
+		
+			while (true) {
+				String line = src.readStringUntil('\n');
+				line.trim();
+				if (line.startsWith(search)) continue;
+				dst.println(line);
+			}
+			
+			src.close();
+			SD.remove("/_positions.temp.txt");
+		}
+		
+		dst.print(search);
+		dst.print(p->get_current_track_id());
+		dst.print(',');
+		dst.println(p->get_position());
+		dst.close();
+		SPIMaster::select_sd(false);
+
+		_playlists.erase(p->path());
+	}
+}

src/updater.cpp

@@ -0,0 +1,96 @@
+#include <Arduino.h>
+#include <Update.h>
+#include "config.h"
+#include "updater.h"
+#include "http_client_wrapper.h"
+
+void Updater::run() {
+	DEBUG("Updater is running...\n");
+	HTTPClientWrapper* http = new HTTPClientWrapper();
+	DEBUG("Requesting update info...\n");
+	bool result = http->get(OTA_UPDATE_URL);
+	if (!result) {
+		ERROR("Updater failed requesting %s.\n", OTA_UPDATE_URL);
+		return;
+	}
+
+	String line_str = "";
+	if (!read_line(&line_str, http, "VERSION")) {
+		return;
+	}
+	uint16_t version = line_str.toInt();
+	if (version==0) {
+		ERROR("Could not parse version number.\n");
+		return;
+	}
+	DEBUG("Found version %d. My version is %d.\n", version, OTA_VERSION);
+	if (version <= OTA_VERSION) {
+		return;
+	}
+	
+	String image_path = "";
+	if (!read_line(&image_path, http, "IMAGE_PATH")) {
+		return;
+	}
+	
+	String image_md5 = "";
+	if (!read_line(&image_md5, http, "IMAGE_MD5")) {
+		return;
+	}
+
+	http->close();
+	delete http;
+	
+	if(do_update(U_FLASH, image_path, image_md5)) {
+		DEBUG("Update done. Rebooting...\n");
+	} else {
+		DEBUG("Update failed. Rebooting...\n");
+	}
+	delay(1000);
+	ESP.restart();
+}
+
+bool Updater::read_line(String* dst, HTTPClientWrapper* http, String expected_key) {
+	expected_key += "=";
+	String line = http->readUntil("\n");
+	if (!line.startsWith(expected_key)) {
+		ERROR("Expected line start with '%s', but it started with '%s'.\n", expected_key.c_str(), line.c_str());
+		return false;
+	}
+	line = line.substring(expected_key.length());
+	line.trim();
+	dst->concat(line);
+	return true;
+}
+
+bool Updater::do_update(int command, String url, String expected_md5) {
+	HTTPClientWrapper* http = new HTTPClientWrapper();
+	bool result = http->get(url);
+	if (!result) {
+		ERROR("Updater failed requesting %s.\n", url.c_str());
+		return false;
+	}
+	
+	result = Update.begin(http->getSize(), command);
+	if (!result) {
+		ERROR("Update could not be started.\n");
+		return false;
+	}
+	Update.setMD5(expected_md5.c_str());
+	uint8_t buf[512];
+	uint16_t len;
+	while((len = http->read(buf, 512))) {
+		Update.write(buf, len);
+	}
+	
+	http->close();
+	delete http;
+	
+	result = Update.end();
+	if (!result) {
+		const char* error = Update.errorString();
+		ERROR("Writing the update failed. The error was: %s\n", error);
+		return false;
+	}
+	return true;
+}

src/webinterface/index.html

@@ -9,9 +9,24 @@
 	<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
 	<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
 	<script src="https://kit.fontawesome.com/272149490a.js" crossorigin="anonymous"></script>
+	<style>
+		.overlay {
+			width: 100%;
+			height: 100%;
+			background-color: rgba(0, 0, 0, 0.85);
+			position: absolute;
+			z-index: 1;
+			margin: auto 0px;
+			vertical-align: middle;
+			color: white;
+			font-size: 60px;
+			text-align: center;
+		}
+	</style>
 </head>
 
 <body>
+	<div id="overlay" class="overlay">Not connected...</div>
 	<div class="container bg-dark text-light">
 		<div class="row">
 			<div class="col-sm-1">
@@ -104,7 +119,7 @@
 					<input type="text" class="form-control" id="input_url" />
 					<div class="input-group-append">
 						<button class="btn btn-primary" id="button_url_open">Go</button>
-						<button class="btn btn-danger" id="button_url_add_mapping" style="display: none;"><i class="fa fa-arrows-alt-h"></i></button>
+						<button class="btn btn-warning" id="button_url_add_mapping" style="display: none;"><i class="fa fa-arrows-alt-h"></i></button>
 					</div>
 				</div>
 				
@@ -151,6 +166,7 @@
 						<h6>Actions</h6>
 						<button type="button" class="btn btn-danger btn-lg btn-block" id="button_reset_vs1053">Reset VS1053 chip</button>
 						<button type="button" class="btn btn-danger btn-lg btn-block" id="button_reboot">Reboot ESMP3</button>
+						<button type="button" class="btn btn-danger btn-lg btn-block" id="button_update">Check for and install update</button>
 					</div>
 					
 					<div class="modal-footer">
@@ -187,7 +203,7 @@ update_playlist = function(data) {
 		tr = $('<tr>').data('track', i);
 		tr.append($('<td>').html(i + 1));
 		tr.append($('<td>').html(data.current_track==i ? '<i class="fa fa-play"></i>' : ''));
-		tr.append($('<td>').html(data.files[i].substr(data.files[i].title)));
+		tr.append($('<td>').html(data.files[i].title));
 		$('#track_list').append(tr);
 	}
 	
@@ -272,10 +288,30 @@ process_ws_message = function(event) {
 }
 
 var play_on_click = true;
+interval = null;
+ws = null;
+
+var start_reconnect_timer = function() {
+	console.log("start_reconnect_timer() running...");
+	$('#overlay').show();
+	interval = setInterval(connect_to_ws, 2500);
+}
+
+var connect_to_ws = function() {
+	if (!ws || ws.readyState >= ws.CLOSING) {
+		ws = new WebSocket("ws://" + location.host + "/ws");
+		ws.onopen = function() {
+			console.log("on_open() running...");
+			clearInterval(interval);
+			$('#overlay').hide();
+		};
+		ws.onmessage = process_ws_message;
+		ws.onclose = start_reconnect_timer;
+	}
+}
 
 $(function() {
-	ws = new WebSocket("ws://" + location.host + "/ws");
-	ws.onmessage = process_ws_message;
+	start_reconnect_timer();
 	
 	$('#volume_slider').change(function(e) { ws.send("volume=" + e.target.value); });
 	$('#button_play').click(function(e) { ws.send("play"); });
@@ -288,6 +324,7 @@ $(function() {
 	$('#button_settings').click(function(e) { $('#settingsModal').modal('show'); });
 	$('#button_reset_vs1053').click(function(e) { ws.send("reset_vs1053"); $('#settingsModal').modal('hide'); });
 	$('#button_reboot').click(function(e) { ws.send("reboot"); $('#settingsModal').modal('hide'); });
+	$('#button_update').click(function(e) { ws.send("update"); $('#settingsModal').modal('hide'); });
 	$('#button_url_open').click(function(e) { ws.send("play " + $('#input_url').val()); $('#openModal').modal('hide');});
 	$('#button_add_mapping').click(function(e) {
 		$('#settingsModal').modal('hide');

src/webinterface/timezones.json

@@ -0,0 +1,462 @@
+{"timezones": {
+"Africa/Abidjan":"GMT0",
+"Africa/Accra":"GMT0",
+"Africa/Addis_Ababa":"EAT-3",
+"Africa/Algiers":"CET-1",
+"Africa/Asmara":"EAT-3",
+"Africa/Bamako":"GMT0",
+"Africa/Bangui":"WAT-1",
+"Africa/Banjul":"GMT0",
+"Africa/Bissau":"GMT0",
+"Africa/Blantyre":"CAT-2",
+"Africa/Brazzaville":"WAT-1",
+"Africa/Bujumbura":"CAT-2",
+"Africa/Cairo":"EET-2",
+"Africa/Casablanca":"<+01>-1",
+"Africa/Ceuta":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Africa/Conakry":"GMT0",
+"Africa/Dakar":"GMT0",
+"Africa/Dar_es_Salaam":"EAT-3",
+"Africa/Djibouti":"EAT-3",
+"Africa/Douala":"WAT-1",
+"Africa/El_Aaiun":"<+01>-1",
+"Africa/Freetown":"GMT0",
+"Africa/Gaborone":"CAT-2",
+"Africa/Harare":"CAT-2",
+"Africa/Johannesburg":"SAST-2",
+"Africa/Juba":"EAT-3",
+"Africa/Kampala":"EAT-3",
+"Africa/Khartoum":"CAT-2",
+"Africa/Kigali":"CAT-2",
+"Africa/Kinshasa":"WAT-1",
+"Africa/Lagos":"WAT-1",
+"Africa/Libreville":"WAT-1",
+"Africa/Lome":"GMT0",
+"Africa/Luanda":"WAT-1",
+"Africa/Lubumbashi":"CAT-2",
+"Africa/Lusaka":"CAT-2",
+"Africa/Malabo":"WAT-1",
+"Africa/Maputo":"CAT-2",
+"Africa/Maseru":"SAST-2",
+"Africa/Mbabane":"SAST-2",
+"Africa/Mogadishu":"EAT-3",
+"Africa/Monrovia":"GMT0",
+"Africa/Nairobi":"EAT-3",
+"Africa/Ndjamena":"WAT-1",
+"Africa/Niamey":"WAT-1",
+"Africa/Nouakchott":"GMT0",
+"Africa/Ouagadougou":"GMT0",
+"Africa/Porto-Novo":"WAT-1",
+"Africa/Sao_Tome":"GMT0",
+"Africa/Tripoli":"EET-2",
+"Africa/Tunis":"CET-1",
+"Africa/Windhoek":"CAT-2",
+"America/Adak":"HST10HDT,M3.2.0,M11.1.0",
+"America/Anchorage":"AKST9AKDT,M3.2.0,M11.1.0",
+"America/Anguilla":"AST4",
+"America/Antigua":"AST4",
+"America/Araguaina":"<-03>3",
+"America/Argentina/Buenos_Aires":"<-03>3",
+"America/Argentina/Catamarca":"<-03>3",
+"America/Argentina/Cordoba":"<-03>3",
+"America/Argentina/Jujuy":"<-03>3",
+"America/Argentina/La_Rioja":"<-03>3",
+"America/Argentina/Mendoza":"<-03>3",
+"America/Argentina/Rio_Gallegos":"<-03>3",
+"America/Argentina/Salta":"<-03>3",
+"America/Argentina/San_Juan":"<-03>3",
+"America/Argentina/San_Luis":"<-03>3",
+"America/Argentina/Tucuman":"<-03>3",
+"America/Argentina/Ushuaia":"<-03>3",
+"America/Aruba":"AST4",
+"America/Asuncion":"<-04>4<-03>,M10.1.0/0,M3.4.0/0",
+"America/Atikokan":"EST5",
+"America/Bahia":"<-03>3",
+"America/Bahia_Banderas":"CST6CDT,M4.1.0,M10.5.0",
+"America/Barbados":"AST4",
+"America/Belem":"<-03>3",
+"America/Belize":"CST6",
+"America/Blanc-Sablon":"AST4",
+"America/Boa_Vista":"<-04>4",
+"America/Bogota":"<-05>5",
+"America/Boise":"MST7MDT,M3.2.0,M11.1.0",
+"America/Cambridge_Bay":"MST7MDT,M3.2.0,M11.1.0",
+"America/Campo_Grande":"<-04>4",
+"America/Cancun":"EST5",
+"America/Caracas":"<-04>4",
+"America/Cayenne":"<-03>3",
+"America/Cayman":"EST5",
+"America/Chicago":"CST6CDT,M3.2.0,M11.1.0",
+"America/Chihuahua":"MST7MDT,M4.1.0,M10.5.0",
+"America/Costa_Rica":"CST6",
+"America/Creston":"MST7",
+"America/Cuiaba":"<-04>4",
+"America/Curacao":"AST4",
+"America/Danmarkshavn":"GMT0",
+"America/Dawson":"PST8PDT,M3.2.0,M11.1.0",
+"America/Dawson_Creek":"MST7",
+"America/Denver":"MST7MDT,M3.2.0,M11.1.0",
+"America/Detroit":"EST5EDT,M3.2.0,M11.1.0",
+"America/Dominica":"AST4",
+"America/Edmonton":"MST7MDT,M3.2.0,M11.1.0",
+"America/Eirunepe":"<-05>5",
+"America/El_Salvador":"CST6",
+"America/Fortaleza":"<-03>3",
+"America/Fort_Nelson":"MST7",
+"America/Glace_Bay":"AST4ADT,M3.2.0,M11.1.0",
+"America/Godthab":"<-03>3<-02>,M3.5.0/-2,M10.5.0/-1",
+"America/Goose_Bay":"AST4ADT,M3.2.0,M11.1.0",
+"America/Grand_Turk":"EST5EDT,M3.2.0,M11.1.0",
+"America/Grenada":"AST4",
+"America/Guadeloupe":"AST4",
+"America/Guatemala":"CST6",
+"America/Guayaquil":"<-05>5",
+"America/Guyana":"<-04>4",
+"America/Halifax":"AST4ADT,M3.2.0,M11.1.0",
+"America/Havana":"CST5CDT,M3.2.0/0,M11.1.0/1",
+"America/Hermosillo":"MST7",
+"America/Indiana/Indianapolis":"EST5EDT,M3.2.0,M11.1.0",
+"America/Indiana/Knox":"CST6CDT,M3.2.0,M11.1.0",
+"America/Indiana/Marengo":"EST5EDT,M3.2.0,M11.1.0",
+"America/Indiana/Petersburg":"EST5EDT,M3.2.0,M11.1.0",
+"America/Indiana/Tell_City":"CST6CDT,M3.2.0,M11.1.0",
+"America/Indiana/Vevay":"EST5EDT,M3.2.0,M11.1.0",
+"America/Indiana/Vincennes":"EST5EDT,M3.2.0,M11.1.0",
+"America/Indiana/Winamac":"EST5EDT,M3.2.0,M11.1.0",
+"America/Inuvik":"MST7MDT,M3.2.0,M11.1.0",
+"America/Iqaluit":"EST5EDT,M3.2.0,M11.1.0",
+"America/Jamaica":"EST5",
+"America/Juneau":"AKST9AKDT,M3.2.0,M11.1.0",
+"America/Kentucky/Louisville":"EST5EDT,M3.2.0,M11.1.0",
+"America/Kentucky/Monticello":"EST5EDT,M3.2.0,M11.1.0",
+"America/Kralendijk":"AST4",
+"America/La_Paz":"<-04>4",
+"America/Lima":"<-05>5",
+"America/Los_Angeles":"PST8PDT,M3.2.0,M11.1.0",
+"America/Lower_Princes":"AST4",
+"America/Maceio":"<-03>3",
+"America/Managua":"CST6",
+"America/Manaus":"<-04>4",
+"America/Marigot":"AST4",
+"America/Martinique":"AST4",
+"America/Matamoros":"CST6CDT,M3.2.0,M11.1.0",
+"America/Mazatlan":"MST7MDT,M4.1.0,M10.5.0",
+"America/Menominee":"CST6CDT,M3.2.0,M11.1.0",
+"America/Merida":"CST6CDT,M4.1.0,M10.5.0",
+"America/Metlakatla":"AKST9AKDT,M3.2.0,M11.1.0",
+"America/Mexico_City":"CST6CDT,M4.1.0,M10.5.0",
+"America/Miquelon":"<-03>3<-02>,M3.2.0,M11.1.0",
+"America/Moncton":"AST4ADT,M3.2.0,M11.1.0",
+"America/Monterrey":"CST6CDT,M4.1.0,M10.5.0",
+"America/Montevideo":"<-03>3",
+"America/Montreal":"EST5EDT,M3.2.0,M11.1.0",
+"America/Montserrat":"AST4",
+"America/Nassau":"EST5EDT,M3.2.0,M11.1.0",
+"America/New_York":"EST5EDT,M3.2.0,M11.1.0",
+"America/Nipigon":"EST5EDT,M3.2.0,M11.1.0",
+"America/Nome":"AKST9AKDT,M3.2.0,M11.1.0",
+"America/Noronha":"<-02>2",
+"America/North_Dakota/Beulah":"CST6CDT,M3.2.0,M11.1.0",
+"America/North_Dakota/Center":"CST6CDT,M3.2.0,M11.1.0",
+"America/North_Dakota/New_Salem":"CST6CDT,M3.2.0,M11.1.0",
+"America/Ojinaga":"MST7MDT,M3.2.0,M11.1.0",
+"America/Panama":"EST5",
+"America/Pangnirtung":"EST5EDT,M3.2.0,M11.1.0",
+"America/Paramaribo":"<-03>3",
+"America/Phoenix":"MST7",
+"America/Port-au-Prince":"EST5EDT,M3.2.0,M11.1.0",
+"America/Port_of_Spain":"AST4",
+"America/Porto_Velho":"<-04>4",
+"America/Puerto_Rico":"AST4",
+"America/Punta_Arenas":"<-03>3",
+"America/Rainy_River":"CST6CDT,M3.2.0,M11.1.0",
+"America/Rankin_Inlet":"CST6CDT,M3.2.0,M11.1.0",
+"America/Recife":"<-03>3",
+"America/Regina":"CST6",
+"America/Resolute":"CST6CDT,M3.2.0,M11.1.0",
+"America/Rio_Branco":"<-05>5",
+"America/Santarem":"<-03>3",
+"America/Santiago":"<-04>4<-03>,M9.1.6/24,M4.1.6/24",
+"America/Santo_Domingo":"AST4",
+"America/Sao_Paulo":"<-03>3",
+"America/Scoresbysund":"<-01>1<+00>,M3.5.0/0,M10.5.0/1",
+"America/Sitka":"AKST9AKDT,M3.2.0,M11.1.0",
+"America/St_Barthelemy":"AST4",
+"America/St_Johns":"NST3:30NDT,M3.2.0,M11.1.0",
+"America/St_Kitts":"AST4",
+"America/St_Lucia":"AST4",
+"America/St_Thomas":"AST4",
+"America/St_Vincent":"AST4",
+"America/Swift_Current":"CST6",
+"America/Tegucigalpa":"CST6",
+"America/Thule":"AST4ADT,M3.2.0,M11.1.0",
+"America/Thunder_Bay":"EST5EDT,M3.2.0,M11.1.0",
+"America/Tijuana":"PST8PDT,M3.2.0,M11.1.0",
+"America/Toronto":"EST5EDT,M3.2.0,M11.1.0",
+"America/Tortola":"AST4",
+"America/Vancouver":"PST8PDT,M3.2.0,M11.1.0",
+"America/Whitehorse":"PST8PDT,M3.2.0,M11.1.0",
+"America/Winnipeg":"CST6CDT,M3.2.0,M11.1.0",
+"America/Yakutat":"AKST9AKDT,M3.2.0,M11.1.0",
+"America/Yellowknife":"MST7MDT,M3.2.0,M11.1.0",
+"Antarctica/Casey":"<+08>-8",
+"Antarctica/Davis":"<+07>-7",
+"Antarctica/DumontDUrville":"<+10>-10",
+"Antarctica/Macquarie":"<+11>-11",
+"Antarctica/Mawson":"<+05>-5",
+"Antarctica/McMurdo":"NZST-12NZDT,M9.5.0,M4.1.0/3",
+"Antarctica/Palmer":"<-03>3",
+"Antarctica/Rothera":"<-03>3",
+"Antarctica/Syowa":"<+03>-3",
+"Antarctica/Troll":"<+00>0<+02>-2,M3.5.0/1,M10.5.0/3",
+"Antarctica/Vostok":"<+06>-6",
+"Arctic/Longyearbyen":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Asia/Aden":"<+03>-3",
+"Asia/Almaty":"<+06>-6",
+"Asia/Amman":"EET-2EEST,M3.5.4/24,M10.5.5/1",
+"Asia/Anadyr":"<+12>-12",
+"Asia/Aqtau":"<+05>-5",
+"Asia/Aqtobe":"<+05>-5",
+"Asia/Ashgabat":"<+05>-5",
+"Asia/Atyrau":"<+05>-5",
+"Asia/Baghdad":"<+03>-3",
+"Asia/Bahrain":"<+03>-3",
+"Asia/Baku":"<+04>-4",
+"Asia/Bangkok":"<+07>-7",
+"Asia/Barnaul":"<+07>-7",
+"Asia/Beirut":"EET-2EEST,M3.5.0/0,M10.5.0/0",
+"Asia/Bishkek":"<+06>-6",
+"Asia/Brunei":"<+08>-8",
+"Asia/Chita":"<+09>-9",
+"Asia/Choibalsan":"<+08>-8",
+"Asia/Colombo":"<+0530>-5:30",
+"Asia/Damascus":"EET-2EEST,M3.5.5/0,M10.5.5/0",
+"Asia/Dhaka":"<+06>-6",
+"Asia/Dili":"<+09>-9",
+"Asia/Dubai":"<+04>-4",
+"Asia/Dushanbe":"<+05>-5",
+"Asia/Famagusta":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Asia/Gaza":"EET-2EEST,M3.5.5/0,M10.5.6/1",
+"Asia/Hebron":"EET-2EEST,M3.5.5/0,M10.5.6/1",
+"Asia/Ho_Chi_Minh":"<+07>-7",
+"Asia/Hong_Kong":"HKT-8",
+"Asia/Hovd":"<+07>-7",
+"Asia/Irkutsk":"<+08>-8",
+"Asia/Jakarta":"WIB-7",
+"Asia/Jayapura":"WIT-9",
+"Asia/Jerusalem":"IST-2IDT,M3.4.4/26,M10.5.0",
+"Asia/Kabul":"<+0430>-4:30",
+"Asia/Kamchatka":"<+12>-12",
+"Asia/Karachi":"PKT-5",
+"Asia/Kathmandu":"<+0545>-5:45",
+"Asia/Khandyga":"<+09>-9",
+"Asia/Kolkata":"IST-5:30",
+"Asia/Krasnoyarsk":"<+07>-7",
+"Asia/Kuala_Lumpur":"<+08>-8",
+"Asia/Kuching":"<+08>-8",
+"Asia/Kuwait":"<+03>-3",
+"Asia/Macau":"CST-8",
+"Asia/Magadan":"<+11>-11",
+"Asia/Makassar":"WITA-8",
+"Asia/Manila":"PST-8",
+"Asia/Muscat":"<+04>-4",
+"Asia/Nicosia":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Asia/Novokuznetsk":"<+07>-7",
+"Asia/Novosibirsk":"<+07>-7",
+"Asia/Omsk":"<+06>-6",
+"Asia/Oral":"<+05>-5",
+"Asia/Phnom_Penh":"<+07>-7",
+"Asia/Pontianak":"WIB-7",
+"Asia/Pyongyang":"KST-9",
+"Asia/Qatar":"<+03>-3",
+"Asia/Qyzylorda":"<+05>-5",
+"Asia/Riyadh":"<+03>-3",
+"Asia/Sakhalin":"<+11>-11",
+"Asia/Samarkand":"<+05>-5",
+"Asia/Seoul":"KST-9",
+"Asia/Shanghai":"CST-8",
+"Asia/Singapore":"<+08>-8",
+"Asia/Srednekolymsk":"<+11>-11",
+"Asia/Taipei":"CST-8",
+"Asia/Tashkent":"<+05>-5",
+"Asia/Tbilisi":"<+04>-4",
+"Asia/Tehran":"<+0330>-3:30<+0430>,J79/24,J263/24",
+"Asia/Thimphu":"<+06>-6",
+"Asia/Tokyo":"JST-9",
+"Asia/Tomsk":"<+07>-7",
+"Asia/Ulaanbaatar":"<+08>-8",
+"Asia/Urumqi":"<+06>-6",
+"Asia/Ust-Nera":"<+10>-10",
+"Asia/Vientiane":"<+07>-7",
+"Asia/Vladivostok":"<+10>-10",
+"Asia/Yakutsk":"<+09>-9",
+"Asia/Yangon":"<+0630>-6:30",
+"Asia/Yekaterinburg":"<+05>-5",
+"Asia/Yerevan":"<+04>-4",
+"Atlantic/Azores":"<-01>1<+00>,M3.5.0/0,M10.5.0/1",
+"Atlantic/Bermuda":"AST4ADT,M3.2.0,M11.1.0",
+"Atlantic/Canary":"WET0WEST,M3.5.0/1,M10.5.0",
+"Atlantic/Cape_Verde":"<-01>1",
+"Atlantic/Faroe":"WET0WEST,M3.5.0/1,M10.5.0",
+"Atlantic/Madeira":"WET0WEST,M3.5.0/1,M10.5.0",
+"Atlantic/Reykjavik":"GMT0",
+"Atlantic/South_Georgia":"<-02>2",
+"Atlantic/Stanley":"<-03>3",
+"Atlantic/St_Helena":"GMT0",
+"Australia/Adelaide":"ACST-9:30ACDT,M10.1.0,M4.1.0/3",
+"Australia/Brisbane":"AEST-10",
+"Australia/Broken_Hill":"ACST-9:30ACDT,M10.1.0,M4.1.0/3",
+"Australia/Currie":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+"Australia/Darwin":"ACST-9:30",
+"Australia/Eucla":"<+0845>-8:45",
+"Australia/Hobart":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+"Australia/Lindeman":"AEST-10",
+"Australia/Lord_Howe":"<+1030>-10:30<+11>-11,M10.1.0,M4.1.0",
+"Australia/Melbourne":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+"Australia/Perth":"AWST-8",
+"Australia/Sydney":"AEST-10AEDT,M10.1.0,M4.1.0/3",
+"Europe/Amsterdam":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Andorra":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Astrakhan":"<+04>-4",
+"Europe/Athens":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Belgrade":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Berlin":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Bratislava":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Brussels":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Bucharest":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Budapest":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Busingen":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Chisinau":"EET-2EEST,M3.5.0,M10.5.0/3",
+"Europe/Copenhagen":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Dublin":"IST-1GMT0,M10.5.0,M3.5.0/1",
+"Europe/Gibraltar":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Guernsey":"GMT0BST,M3.5.0/1,M10.5.0",
+"Europe/Helsinki":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Isle_of_Man":"GMT0BST,M3.5.0/1,M10.5.0",
+"Europe/Istanbul":"<+03>-3",
+"Europe/Jersey":"GMT0BST,M3.5.0/1,M10.5.0",
+"Europe/Kaliningrad":"EET-2",
+"Europe/Kiev":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Kirov":"<+03>-3",
+"Europe/Lisbon":"WET0WEST,M3.5.0/1,M10.5.0",
+"Europe/Ljubljana":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/London":"GMT0BST,M3.5.0/1,M10.5.0",
+"Europe/Luxembourg":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Madrid":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Malta":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Mariehamn":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Minsk":"<+03>-3",
+"Europe/Monaco":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Moscow":"MSK-3",
+"Europe/Oslo":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Paris":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Podgorica":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Prague":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Riga":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Rome":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Samara":"<+04>-4",
+"Europe/San_Marino":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Sarajevo":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Saratov":"<+04>-4",
+"Europe/Simferopol":"MSK-3",
+"Europe/Skopje":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Sofia":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Stockholm":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Tallinn":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Tirane":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Ulyanovsk":"<+04>-4",
+"Europe/Uzhgorod":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Vaduz":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Vatican":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Vienna":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Vilnius":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Volgograd":"<+04>-4",
+"Europe/Warsaw":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Zagreb":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Europe/Zaporozhye":"EET-2EEST,M3.5.0/3,M10.5.0/4",
+"Europe/Zurich":"CET-1CEST,M3.5.0,M10.5.0/3",
+"Indian/Antananarivo":"EAT-3",
+"Indian/Chagos":"<+06>-6",
+"Indian/Christmas":"<+07>-7",
+"Indian/Cocos":"<+0630>-6:30",
+"Indian/Comoro":"EAT-3",
+"Indian/Kerguelen":"<+05>-5",
+"Indian/Mahe":"<+04>-4",
+"Indian/Maldives":"<+05>-5",
+"Indian/Mauritius":"<+04>-4",
+"Indian/Mayotte":"EAT-3",
+"Indian/Reunion":"<+04>-4",
+"Pacific/Apia":"<+13>-13<+14>,M9.5.0/3,M4.1.0/4",
+"Pacific/Auckland":"NZST-12NZDT,M9.5.0,M4.1.0/3",
+"Pacific/Bougainville":"<+11>-11",
+"Pacific/Chatham":"<+1245>-12:45<+1345>,M9.5.0/2:45,M4.1.0/3:45",
+"Pacific/Chuuk":"<+10>-10",
+"Pacific/Easter":"<-06>6<-05>,M9.1.6/22,M4.1.6/22",
+"Pacific/Efate":"<+11>-11",
+"Pacific/Enderbury":"<+13>-13",
+"Pacific/Fakaofo":"<+13>-13",
+"Pacific/Fiji":"<+12>-12<+13>,M11.2.0,M1.2.3/99",
+"Pacific/Funafuti":"<+12>-12",
+"Pacific/Galapagos":"<-06>6",
+"Pacific/Gambier":"<-09>9",
+"Pacific/Guadalcanal":"<+11>-11",
+"Pacific/Guam":"ChST-10",
+"Pacific/Honolulu":"HST10",
+"Pacific/Kiritimati":"<+14>-14",
+"Pacific/Kosrae":"<+11>-11",
+"Pacific/Kwajalein":"<+12>-12",
+"Pacific/Majuro":"<+12>-12",
+"Pacific/Marquesas":"<-0930>9:30",
+"Pacific/Midway":"SST11",
+"Pacific/Nauru":"<+12>-12",
+"Pacific/Niue":"<-11>11",
+"Pacific/Norfolk":"<+11>-11<+12>,M10.1.0,M4.1.0/3",
+"Pacific/Noumea":"<+11>-11",
+"Pacific/Pago_Pago":"SST11",
+"Pacific/Palau":"<+09>-9",
+"Pacific/Pitcairn":"<-08>8",
+"Pacific/Pohnpei":"<+11>-11",
+"Pacific/Port_Moresby":"<+10>-10",
+"Pacific/Rarotonga":"<-10>10",
+"Pacific/Saipan":"ChST-10",
+"Pacific/Tahiti":"<-10>10",
+"Pacific/Tarawa":"<+12>-12",
+"Pacific/Tongatapu":"<+13>-13",
+"Pacific/Wake":"<+12>-12",
+"Pacific/Wallis":"<+12>-12",
+"Etc/GMT":"GMT0",
+"Etc/GMT-0":"GMT0",
+"Etc/GMT-1":"<+01>-1",
+"Etc/GMT-2":"<+02>-2",
+"Etc/GMT-3":"<+03>-3",
+"Etc/GMT-4":"<+04>-4",
+"Etc/GMT-5":"<+05>-5",
+"Etc/GMT-6":"<+06>-6",
+"Etc/GMT-7":"<+07>-7",
+"Etc/GMT-8":"<+08>-8",
+"Etc/GMT-9":"<+09>-9",
+"Etc/GMT-10":"<+10>-10",
+"Etc/GMT-11":"<+11>-11",
+"Etc/GMT-12":"<+12>-12",
+"Etc/GMT-13":"<+13>-13",
+"Etc/GMT-14":"<+14>-14",
+"Etc/GMT0":"GMT0",
+"Etc/GMT+0":"GMT0",
+"Etc/GMT+1":"<-01>1",
+"Etc/GMT+2":"<-02>2",
+"Etc/GMT+3":"<-03>3",
+"Etc/GMT+4":"<-04>4",
+"Etc/GMT+5":"<-05>5",
+"Etc/GMT+6":"<-06>6",
+"Etc/GMT+7":"<-07>7",
+"Etc/GMT+8":"<-08>8",
+"Etc/GMT+9":"<-09>9",
+"Etc/GMT+10":"<-10>10",
+"Etc/GMT+11":"<-11>11",
+"Etc/GMT+12":"<-12>12",
+"Etc/UCT":"UTC0",
+"Etc/UTC":"UTC0",
+"Etc/Greenwich":"GMT0",
+"Etc/Universal":"UTC0",
+"Etc/Zulu":"UTC0"
+}}

tools/create_tz_json.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/bash
+
+URL="https://raw.githubusercontent.com/nayarsystems/posix_tz_db/master/zones.csv"
+(
+	first=1
+	echo "{\"timezones\": {"
+	curl --silent "$URL" | while read line; do
+		[ $first -ne 1 ] && echo ","
+		first=0
+		echo -n "${line/\",\"/\":\"}"
+	done
+	echo
+	echo "}}"
+) > src/webinterface/timezones.json

tools/post_build.py

@@ -0,0 +1,9 @@
+Import("env")
+
+env.Execute("gzip -9 < src/webinterface/index.html > src/webinterface/index.html.gz")
+env.Execute("gzip -9 < src/webinterface/timezones.json > src/webinterface/timezones.json.gz")
+
+def build(source, target, env):
+	env.Execute("rm src/webinterface/index.html.gz src/webinterface/timezones.json.gz")
+
+env.AddPostAction("buildprog", build)