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149 lines
4.2 KiB
149 lines
4.2 KiB
/*
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Part of the WEBSERVER module
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Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
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Copyright (C) 2020 by Maxim Prokhorov <prokhorov dot max at outlook dot com>
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*/
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#include "ota.h"
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#include "settings.h"
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#include "storage_eeprom.h"
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#include "utils.h"
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#include "web.h"
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#include "ws.h"
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#if WEB_SUPPORT && OTA_WEB_SUPPORT
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void _onUpgradeResponse(AsyncWebServerRequest *request, int code, const String& payload = "") {
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auto *response = request->beginResponseStream("text/plain", 256);
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response->addHeader("Connection", "close");
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response->addHeader("X-XSS-Protection", "1; mode=block");
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response->addHeader("X-Content-Type-Options", "nosniff");
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response->addHeader("X-Frame-Options", "deny");
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response->setCode(code);
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if (payload.length()) {
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response->printf("%s", payload.c_str());
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} else {
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if (!Update.hasError()) {
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response->print("OK");
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} else {
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#if defined(ARDUINO_ESP8266_RELEASE_2_3_0)
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Update.printError(reinterpret_cast<Stream&>(response));
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#else
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Update.printError(*response);
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#endif
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}
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}
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request->send(response);
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}
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void _onUpgradeStatusSet(AsyncWebServerRequest *request, int code, const String& payload = "") {
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_onUpgradeResponse(request, code, payload);
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request->_tempObject = malloc(sizeof(bool));
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}
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void _onUpgrade(AsyncWebServerRequest *request) {
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webLog(request);
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if (!webAuthenticate(request)) {
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return request->requestAuthentication(getSetting("hostname").c_str());
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}
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if (request->_tempObject) {
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return;
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}
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_onUpgradeResponse(request, 200);
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}
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void _onUpgradeFile(AsyncWebServerRequest *request, String filename, size_t index, uint8_t *data, size_t len, bool final) {
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if (!webAuthenticate(request)) {
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return request->requestAuthentication(getSetting("hostname").c_str());
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}
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// We set this after we are done with the request
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// It is still possible to re-enter this callback even after connection is already closed
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// 1.14.2: TODO: see https://github.com/me-no-dev/ESPAsyncWebServer/pull/660
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// remote close or request sending some data before finishing parsing of the body will leak 1460 bytes
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// waiting a bit for upstream. fork and point to the fixed version if not resolved before 1.14.2
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if (request->_tempObject) {
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return;
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}
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if (!index) {
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// TODO: stop network activity completely when handling Update through ArduinoOTA or `ota` command?
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if (Update.isRunning()) {
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_onUpgradeStatusSet(request, 400, F("ERROR: Upgrade in progress"));
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return;
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}
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// Check that header is correct and there is more data before anything is written to the flash
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if (final || !len) {
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_onUpgradeStatusSet(request, 400, F("ERROR: Invalid request"));
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return;
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}
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if (!otaVerifyHeader(data, len)) {
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_onUpgradeStatusSet(request, 400, F("ERROR: No magic byte / invalid flash config"));
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return;
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}
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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("[UPGRADE] Start: %s\n"), filename.c_str());
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Update.runAsync(true);
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// Note: cannot use request->contentLength() for multipart/form-data
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if (!Update.begin((ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000)) {
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_onUpgradeStatusSet(request, 500);
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eepromRotate(true);
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return;
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}
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}
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if (request->_tempObject) {
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return;
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}
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// Any error will cancel the update, but request may still be alive
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if (!Update.isRunning()) {
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return;
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}
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if (Update.write(data, len) != len) {
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_onUpgradeStatusSet(request, 500);
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Update.end();
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eepromRotate(true);
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return;
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}
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if (final) {
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otaFinalize(index + len, CUSTOM_RESET_UPGRADE, true);
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} else {
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otaProgress(index + len);
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}
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}
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void otaWebSetup() {
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webServer()->on("/upgrade", HTTP_POST, _onUpgrade, _onUpgradeFile);
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wsRegister().
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onVisible([](JsonObject& root) {
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root["otaVisible"] = 1;
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});
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}
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#endif // OTA_WEB_SUPPORT
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