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232 lines
5.9 KiB
232 lines
5.9 KiB
/*
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ASYNC CLIENT OTA MODULE
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Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
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*/
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#if OTA_CLIENT == OTA_CLIENT_ASYNCTCP
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// -----------------------------------------------------------------------------
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// Terminal OTA command
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// -----------------------------------------------------------------------------
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#if TERMINAL_SUPPORT || OTA_MQTT_SUPPORT
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#include <ESPAsyncTCP.h>
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#include "system.h"
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#include "libs/URL.h"
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std::unique_ptr<AsyncClient> _ota_client = nullptr;
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unsigned long _ota_size = 0;
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bool _ota_connected = false;
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std::unique_ptr<URL> _ota_url = nullptr;
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const char OTA_REQUEST_TEMPLATE[] PROGMEM =
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"GET %s HTTP/1.1\r\n"
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"Host: %s\r\n"
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"User-Agent: ESPurna\r\n"
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"Connection: close\r\n"
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"Content-Type: application/x-www-form-urlencoded\r\n"
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"Content-Length: 0\r\n\r\n\r\n";
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void _otaClientOnDisconnect(void *s, AsyncClient *c) {
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DEBUG_MSG_P(PSTR("\n"));
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if (Update.end(true)){
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DEBUG_MSG_P(PSTR("[OTA] Success: %u bytes\n"), _ota_size);
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deferredReset(100, CUSTOM_RESET_OTA);
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} else {
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#ifdef DEBUG_PORT
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Update.printError(DEBUG_PORT);
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#endif
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eepromRotate(true);
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}
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DEBUG_MSG_P(PSTR("[OTA] Disconnected\n"));
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_ota_connected = false;
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_ota_url = nullptr;
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_ota_client = nullptr;
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}
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void _otaClientOnTimeout(void *s, AsyncClient *c, uint32_t time) {
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_ota_connected = false;
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_ota_url = nullptr;
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_ota_client->close(true);
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}
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void _otaClientOnData(void * arg, AsyncClient * c, void * data, size_t len) {
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char * p = (char *) data;
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if (_ota_size == 0) {
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Update.runAsync(true);
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if (!Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000)) {
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#ifdef DEBUG_PORT
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Update.printError(DEBUG_PORT);
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#endif
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c->close(true);
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return;
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}
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p = strstr((char *)data, "\r\n\r\n") + 4;
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len = len - (p - (char *) data);
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}
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if (!Update.hasError()) {
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if (Update.write((uint8_t *) p, len) != len) {
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#ifdef DEBUG_PORT
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Update.printError(DEBUG_PORT);
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#endif
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c->close(true);
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return;
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}
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}
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_ota_size += len;
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DEBUG_MSG_P(PSTR("[OTA] Progress: %u bytes\r"), _ota_size);
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delay(0);
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}
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void _otaClientOnConnect(void *arg, AsyncClient *client) {
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#if ASYNC_TCP_SSL_ENABLED
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int check = getSetting("otaScCheck", OTA_SECURE_CLIENT_CHECK).toInt();
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if ((check == SECURE_CLIENT_CHECK_FINGERPRINT) && (443 == _ota_url->port)) {
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uint8_t fp[20] = {0};
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sslFingerPrintArray(getSetting("otaFP", OTA_FINGERPRINT).c_str(), fp);
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SSL * ssl = _ota_client->getSSL();
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if (ssl_match_fingerprint(ssl, fp) != SSL_OK) {
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DEBUG_MSG_P(PSTR("[OTA] Warning: certificate fingerpint doesn't match\n"));
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client->close(true);
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return;
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}
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}
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#endif
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// Disabling EEPROM rotation to prevent writing to EEPROM after the upgrade
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eepromRotate(false);
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DEBUG_MSG_P(PSTR("[OTA] Downloading %s\n"), _ota_url->path.c_str());
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char buffer[strlen_P(OTA_REQUEST_TEMPLATE) + _ota_url->path.length() + _ota_url->host.length()];
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snprintf_P(buffer, sizeof(buffer), OTA_REQUEST_TEMPLATE, _ota_url->path.c_str(), _ota_url->host.c_str());
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client->write(buffer);
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}
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void _otaClientFrom(const String& url) {
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if (_ota_connected) {
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DEBUG_MSG_P(PSTR("[OTA] Already connected\n"));
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return;
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}
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_ota_size = 0;
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if (_ota_url) _ota_url = nullptr;
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_ota_url = std::make_unique<URL>(url);
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/*
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DEBUG_MSG_P(PSTR("[OTA] proto:%s host:%s port:%u path:%s\n"),
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_ota_url->protocol.c_str(),
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_ota_url->host.c_str(),
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_ota_url->port,
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_ota_url->path.c_str()
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);
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*/
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// we only support HTTP
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if ((!_ota_url->protocol.equals("http")) && (!_ota_url->protocol.equals("https"))) {
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DEBUG_MSG_P(PSTR("[OTA] Incorrect URL specified\n"));
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_ota_url = nullptr;
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return;
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}
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if (!_ota_client) {
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_ota_client = std::make_unique<AsyncClient>();
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}
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_ota_client->onDisconnect(_otaClientOnDisconnect, nullptr);
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_ota_client->onTimeout(_otaClientOnTimeout, nullptr);
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_ota_client->onData(_otaClientOnData, nullptr);
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_ota_client->onConnect(_otaClientOnConnect, nullptr);
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#if ASYNC_TCP_SSL_ENABLED
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_ota_connected = _ota_client->connect(_ota_url->host.c_str(), _ota_url->port, 443 == _ota_url->port);
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#else
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_ota_connected = _ota_client->connect(_ota_url->host.c_str(), _ota_url->port);
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#endif
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if (!_ota_connected) {
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DEBUG_MSG_P(PSTR("[OTA] Connection failed\n"));
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_ota_url = nullptr;
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_ota_client->close(true);
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}
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}
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#endif // TERMINAL_SUPPORT || OTA_MQTT_SUPPORT
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#if TERMINAL_SUPPORT
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void _otaClientInitCommands() {
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terminalRegisterCommand(F("OTA"), [](Embedis* e) {
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if (e->argc < 2) {
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terminalError(F("OTA <url>"));
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} else {
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_otaClientFrom(String(e->argv[1]));
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terminalOK();
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}
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});
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}
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#endif // TERMINAL_SUPPORT
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#if OTA_MQTT_SUPPORT
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void _otaClientMqttCallback(unsigned int type, const char * topic, const char * payload) {
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if (type == MQTT_CONNECT_EVENT) {
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mqttSubscribe(MQTT_TOPIC_OTA);
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}
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if (type == MQTT_MESSAGE_EVENT) {
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String t = mqttMagnitude((char *) topic);
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if (t.equals(MQTT_TOPIC_OTA)) {
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DEBUG_MSG_P(PSTR("[OTA] Initiating from URL: %s\n"), payload);
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_otaClientFrom(payload);
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}
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}
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}
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#endif // OTA_MQTT_SUPPORT
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// -----------------------------------------------------------------------------
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void otaClientSetup() {
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// Backwards compatibility
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moveSetting("otafp", "otaFP");
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#if TERMINAL_SUPPORT
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_otaClientInitCommands();
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#endif
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#if (MQTT_SUPPORT && OTA_MQTT_SUPPORT)
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mqttRegister(_otaClientMqttCallback);
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#endif
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}
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#endif // OTA_CLIENT == OTA_CLIENT_ASYNCTCP
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