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325 lines
7.0 KiB
325 lines
7.0 KiB
#ifndef LWIP_OPEN_SRC
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#define LWIP_OPEN_SRC
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#endif
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#include <functional>
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#include <WiFiUdp.h>
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#include "ArduinoOTA.h"
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#include "MD5Builder.h"
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extern "C" {
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#include "osapi.h"
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#include "ets_sys.h"
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#include "user_interface.h"
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}
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#include "lwip/opt.h"
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#include "lwip/udp.h"
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#include "lwip/inet.h"
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#include "lwip/igmp.h"
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#include "lwip/mem.h"
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#include "include/UdpContext.h"
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#include <ESP8266mDNS.h>
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#ifdef DEBUG_ESP_OTA
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#ifdef DEBUG_ESP_PORT
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#define OTA_DEBUG DEBUG_ESP_PORT
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#endif
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#endif
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ArduinoOTAClass::ArduinoOTAClass()
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: _port(0)
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, _udp_ota(0)
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, _initialized(false)
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, _state(OTA_IDLE)
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, _size(0)
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, _cmd(0)
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, _ota_port(0)
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, _start_callback(NULL)
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, _end_callback(NULL)
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, _error_callback(NULL)
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, _progress_callback(NULL)
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{
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}
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ArduinoOTAClass::~ArduinoOTAClass(){
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if(_udp_ota){
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_udp_ota->unref();
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_udp_ota = 0;
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}
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}
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void ArduinoOTAClass::onStart(OTA_CALLBACK(fn)) {
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_start_callback = fn;
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}
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void ArduinoOTAClass::onEnd(OTA_CALLBACK(fn)) {
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_end_callback = fn;
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}
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void ArduinoOTAClass::onProgress(OTA_CALLBACK_PROGRESS(fn)) {
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_progress_callback = fn;
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}
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void ArduinoOTAClass::onError(OTA_CALLBACK_ERROR(fn)) {
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_error_callback = fn;
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}
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void ArduinoOTAClass::setPort(uint16_t port) {
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if (!_initialized && !_port && port) {
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_port = port;
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}
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}
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void ArduinoOTAClass::setHostname(const char * hostname) {
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if (!_initialized && !_hostname.length() && hostname) {
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_hostname = hostname;
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}
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}
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void ArduinoOTAClass::setPassword(const char * password) {
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if (!_initialized && !_password.length() && password) {
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_password = password;
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}
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}
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void ArduinoOTAClass::begin() {
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if (_initialized)
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return;
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if (!_hostname.length()) {
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char tmp[15];
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sprintf(tmp, "esp8266-%06x", ESP.getChipId());
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_hostname = tmp;
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}
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if (!_port) {
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_port = 8266;
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}
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if(_udp_ota){
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_udp_ota->unref();
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_udp_ota = 0;
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}
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_udp_ota = new UdpContext;
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_udp_ota->ref();
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if(!_udp_ota->listen(*IP_ADDR_ANY, _port))
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return;
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_udp_ota->onRx(std::bind(&ArduinoOTAClass::_onRx, this));
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MDNS.begin(_hostname.c_str());
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if (_password.length()) {
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MDNS.enableArduino(_port, true);
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} else {
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MDNS.enableArduino(_port);
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}
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_initialized = true;
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_state = OTA_IDLE;
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#ifdef OTA_DEBUG
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OTA_DEBUG.printf("OTA server at: %s.local:%u\n", _hostname.c_str(), _port);
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#endif
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}
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int ArduinoOTAClass::parseInt(){
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char data[16];
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uint8_t index = 0;
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char value;
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while(_udp_ota->peek() == ' ') _udp_ota->read();
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while(true){
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value = _udp_ota->peek();
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if(value < '0' || value > '9'){
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data[index++] = '\0';
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return atoi(data);
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}
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data[index++] = _udp_ota->read();
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}
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return 0;
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}
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String ArduinoOTAClass::readStringUntil(char end){
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String res = "";
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char value;
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while(true){
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value = _udp_ota->read();
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if(value == '\0' || value == end){
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return res;
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}
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res += value;
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}
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return res;
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}
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void ArduinoOTAClass::_onRx(){
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if(!_udp_ota->next()) return;
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ip_addr_t ota_ip;
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if (_state == OTA_IDLE) {
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int cmd = parseInt();
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if (cmd != U_FLASH && cmd != U_SPIFFS)
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return;
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_ota_ip = _udp_ota->getRemoteAddress();
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_cmd = cmd;
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_ota_port = parseInt();
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_size = parseInt();
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_udp_ota->read();
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_md5 = readStringUntil('\n');
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_md5.trim();
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if(_md5.length() != 32)
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return;
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ota_ip.addr = (uint32_t)_ota_ip;
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if (_password.length()){
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MD5Builder nonce_md5;
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nonce_md5.begin();
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nonce_md5.add(String(micros()));
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nonce_md5.calculate();
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_nonce = nonce_md5.toString();
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char auth_req[38];
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sprintf(auth_req, "AUTH %s", _nonce.c_str());
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_udp_ota->append((const char *)auth_req, strlen(auth_req));
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_udp_ota->send(&ota_ip, _udp_ota->getRemotePort());
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_state = OTA_WAITAUTH;
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return;
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} else {
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_udp_ota->append("OK", 2);
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_udp_ota->send(&ota_ip, _udp_ota->getRemotePort());
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_state = OTA_RUNUPDATE;
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}
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} else if (_state == OTA_WAITAUTH) {
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int cmd = parseInt();
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if (cmd != U_AUTH) {
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_state = OTA_IDLE;
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return;
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}
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_udp_ota->read();
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String cnonce = readStringUntil(' ');
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String response = readStringUntil('\n');
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if (cnonce.length() != 32 || response.length() != 32) {
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_state = OTA_IDLE;
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return;
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}
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MD5Builder _passmd5;
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_passmd5.begin();
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_passmd5.add(_password);
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_passmd5.calculate();
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String passmd5 = _passmd5.toString();
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String challenge = passmd5 + ":" + String(_nonce) + ":" + cnonce;
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MD5Builder _challengemd5;
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_challengemd5.begin();
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_challengemd5.add(challenge);
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_challengemd5.calculate();
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String result = _challengemd5.toString();
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ota_ip.addr = (uint32_t)_ota_ip;
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if(result.equals(response)){
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_udp_ota->append("OK", 2);
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_udp_ota->send(&ota_ip, _udp_ota->getRemotePort());
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_state = OTA_RUNUPDATE;
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} else {
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_udp_ota->append("Authentication Failed", 21);
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_udp_ota->send(&ota_ip, _udp_ota->getRemotePort());
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if (_error_callback) _error_callback(OTA_AUTH_ERROR);
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_state = OTA_IDLE;
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}
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}
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while(_udp_ota->next()) _udp_ota->flush();
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}
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void ArduinoOTAClass::_runUpdate() {
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if (!Update.begin(_size, _cmd)) {
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#ifdef OTA_DEBUG
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OTA_DEBUG.println("Update Begin Error");
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#endif
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if (_error_callback) {
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_error_callback(OTA_BEGIN_ERROR);
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}
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_udp_ota->listen(*IP_ADDR_ANY, _port);
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_state = OTA_IDLE;
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return;
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}
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Update.setMD5(_md5.c_str());
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WiFiUDP::stopAll();
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WiFiClient::stopAll();
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if (_start_callback) {
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_start_callback();
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}
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if (_progress_callback) {
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_progress_callback(0, _size);
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}
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WiFiClient client;
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if (!client.connect(_ota_ip, _ota_port)) {
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#ifdef OTA_DEBUG
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OTA_DEBUG.printf("Connect Failed\n");
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#endif
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_udp_ota->listen(*IP_ADDR_ANY, _port);
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if (_error_callback) {
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_error_callback(OTA_CONNECT_ERROR);
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}
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_state = OTA_IDLE;
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}
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uint32_t written, total = 0;
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while (!Update.isFinished() && client.connected()) {
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int waited = 1000;
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while (!client.available() && waited--)
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delay(1);
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if (!waited){
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#ifdef OTA_DEBUG
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OTA_DEBUG.printf("Receive Failed\n");
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#endif
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_udp_ota->listen(*IP_ADDR_ANY, _port);
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if (_error_callback) {
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_error_callback(OTA_RECEIVE_ERROR);
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}
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_state = OTA_IDLE;
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}
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written = Update.write(client);
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if (written > 0) {
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client.print(written, DEC);
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total += written;
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if(_progress_callback) {
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_progress_callback(total, _size);
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}
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}
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}
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if (Update.end()) {
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client.print("OK");
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client.stop();
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delay(10);
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#ifdef OTA_DEBUG
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OTA_DEBUG.printf("Update Success\nRebooting...\n");
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#endif
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if (_end_callback) {
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_end_callback();
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}
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ESP.restart();
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} else {
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_udp_ota->listen(*IP_ADDR_ANY, _port);
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if (_error_callback) {
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_error_callback(OTA_END_ERROR);
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}
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Update.printError(client);
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#ifdef OTA_DEBUG
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Update.printError(OTA_DEBUG);
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#endif
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_state = OTA_IDLE;
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}
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}
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void ArduinoOTAClass::handle() {
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if (_state == OTA_RUNUPDATE) {
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_runUpdate();
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_state = OTA_IDLE;
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}
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}
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ArduinoOTAClass ArduinoOTA;
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