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ESP8266HTTPUpdateServer-impl.h
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#include <Arduino.h>
#include <WiFiClient.h>
#include <WiFiServer.h>
#include <ESP8266WebServer.h>
#include <WiFiUdp.h>
#include <flash_hal.h>
#include <FS.h>
#include "StreamString.h"
#include "ESP8266HTTPUpdateServer.h"
namespace esp8266httpupdateserver {
using namespace esp8266webserver;
static const char serverIndex[] PROGMEM =
R"(<!DOCTYPE html>
<html lang='en'>
<head>
<meta charset='utf-8'>
<meta name='viewport' content='width=device-width,initial-scale=1'/>
</head>
<body>
<form method='POST' action='' enctype='multipart/form-data'>
Firmware:<br>
<input type='file' accept='.bin,.bin.gz' name='firmware'>
<input type='submit' value='Update Firmware'>
</form>
<form method='POST' action='' enctype='multipart/form-data'>
FileSystem:<br>
<input type='file' accept='.bin,.bin.gz' name='filesystem'>
<input type='submit' value='Update FileSystem'>
</form>
</body>
</html>)";
static const char successResponse[] PROGMEM =
"<META http-equiv=\"refresh\" content=\"15;URL=/\">Update Success! Rebooting...";
template <typename ServerType>
ESP8266HTTPUpdateServerTemplate<ServerType>::ESP8266HTTPUpdateServerTemplate(bool serial_debug)
{
_serial_output = serial_debug;
_server = NULL;
_username = emptyString;
_password = emptyString;
_authenticated = false;
}
template <typename ServerType>
void ESP8266HTTPUpdateServerTemplate<ServerType>::setup(ESP8266WebServerTemplate<ServerType> *server, const String& path, const String& username, const String& password)
{
_server = server;
_username = username;
_password = password;
// handler for the /update form page
_server->on(path.c_str(), HTTP_GET, [&](){
if(_username != emptyString && _password != emptyString && !_server->authenticate(_username.c_str(), _password.c_str()))
return _server->requestAuthentication();
_server->send_P(200, PSTR("text/html"), serverIndex);
});
// handler for the /update form POST (once file upload finishes)
_server->on(path.c_str(), HTTP_POST, [&](){
if(!_authenticated)
return _server->requestAuthentication();
if (Update.hasError()) {
_server->send(200, F("text/html"), String(F("Update error: ")) + _updaterError);
} else {
_server->client().setNoDelay(true);
_server->send_P(200, PSTR("text/html"), successResponse);
delay(100);
_server->client().stop();
ESP.restart();
}
},[&](){
// handler for the file upload, get's the sketch bytes, and writes
// them through the Update object
HTTPUpload& upload = _server->upload();
if(upload.status == UPLOAD_FILE_START){
_updaterError.clear();
if (_serial_output)
Serial.setDebugOutput(true);
_authenticated = (_username == emptyString || _password == emptyString || _server->authenticate(_username.c_str(), _password.c_str()));
if(!_authenticated){
if (_serial_output)
Serial.printf("Unauthenticated Update\n");
return;
}
WiFiUDP::stopAll();
if (_serial_output)
Serial.printf("Update: %s\n", upload.filename.c_str());
if (upload.name == "filesystem") {
size_t fsSize = ((size_t) &_FS_end - (size_t) &_FS_start);
close_all_fs();
if (!Update.begin(fsSize, U_FS)){//start with max available size
if (_serial_output) Update.printError(Serial);
}
} else {
uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
if (!Update.begin(maxSketchSpace, U_FLASH)){//start with max available size
_setUpdaterError();
}
}
} else if(_authenticated && upload.status == UPLOAD_FILE_WRITE && !_updaterError.length()){
if (_serial_output) Serial.printf(".");
if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
_setUpdaterError();
}
} else if(_authenticated && upload.status == UPLOAD_FILE_END && !_updaterError.length()){
if(Update.end(true)){ //true to set the size to the current progress
if (_serial_output) Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
} else {
_setUpdaterError();
}
if (_serial_output) Serial.setDebugOutput(false);
} else if(_authenticated && upload.status == UPLOAD_FILE_ABORTED){
Update.end();
if (_serial_output) Serial.println("Update was aborted");
}
yield();
});
}
template <typename ServerType>
void ESP8266HTTPUpdateServerTemplate<ServerType>::_setUpdaterError()
{
if (_serial_output) Update.printError(Serial);
StreamString str;
Update.printError(str);
_updaterError = str.c_str();
}
};