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ESP8266HTTPUpdateServer: fix responses after uploading

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- fix response not being delivered to the browser after upload is done
  (https://github.com/esp8266/Arduino/issues/2221)

- if Update.begin fails, don’t attempt to write data

- if update is not successful, send error message from Update to the
  client

- move strings into PROGMEM
This commit is contained in:
Ivan Grokhotkov 2017-05-09 20:54:26 +08:00 committed by Ivan Grokhotkov
parent b623613b2a
commit ace0622e46
2 changed files with 42 additions and 23 deletions
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45
libraries/ESP8266HTTPUpdateServer/src/ESP8266HTTPUpdateServer.cpp
View File

@ -3,17 +3,18 @@
#include <WiFiServer.h>
#include <ESP8266WebServer.h>
#include <WiFiUdp.h>
#include "StreamString.h"
#include "ESP8266HTTPUpdateServer.h"
const char* ESP8266HTTPUpdateServer::_serverIndex =
R"(<html><body><form method='POST' action='' enctype='multipart/form-data'>
static const char serverIndex[] PROGMEM =
R"(<html><body><form method='POST' action='' enctype='multipart/form-data'>
<input type='file' name='update'>
<input type='submit' value='Update'>
</form>
</body></html>)";
const char* ESP8266HTTPUpdateServer::_failedResponse = R"(Update Failed!)";
const char* ESP8266HTTPUpdateServer::_successResponse = "<META http-equiv=\"refresh\" content=\"15;URL=\">Update Success! Rebooting...";
</body></html>\n)";
static const char successResponse[] PROGMEM =
"<META http-equiv=\"refresh\" content=\"15;URL=\">Update Success! Rebooting...\n";
ESP8266HTTPUpdateServer::ESP8266HTTPUpdateServer(bool serial_debug)
{
@ -34,20 +35,29 @@ void ESP8266HTTPUpdateServer::setup(ESP8266WebServer *server, const char * path,
_server->on(path, HTTP_GET, [&](){
if(_username != NULL && _password != NULL && !_server->authenticate(_username, _password))
return _server->requestAuthentication();
_server->send(200, "text/html", _serverIndex);
_server->send_P(200, PSTR("text/html"), serverIndex);
});
// handler for the /update form POST (once file upload finishes)
_server->on(path, HTTP_POST, [&](){
if(!_authenticated)
return _server->requestAuthentication();
_server->send(200, "text/html", Update.hasError() ? _failedResponse : _successResponse);
ESP.restart();
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 = String();
if (_serial_output)
Serial.setDebugOutput(true);
@ -63,19 +73,18 @@ void ESP8266HTTPUpdateServer::setup(ESP8266WebServer *server, const char * path,
Serial.printf("Update: %s\n", upload.filename.c_str());
uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
if(!Update.begin(maxSketchSpace)){//start with max available size
if (_serial_output) Update.printError(Serial);
_setUpdaterError();
}
} else if(_authenticated && upload.status == UPLOAD_FILE_WRITE){
} else if(_authenticated && upload.status == UPLOAD_FILE_WRITE && !_updaterError.length()){
if (_serial_output) Serial.printf(".");
if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
if (_serial_output) Update.printError(Serial);
_setUpdaterError();
}
} else if(_authenticated && upload.status == UPLOAD_FILE_END){
} 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 {
if (_serial_output) Update.printError(Serial);
_setUpdaterError();
}
if (_serial_output) Serial.setDebugOutput(false);
} else if(_authenticated && upload.status == UPLOAD_FILE_ABORTED){
@ -85,3 +94,11 @@ void ESP8266HTTPUpdateServer::setup(ESP8266WebServer *server, const char * path,
delay(0);
});
}
void ESP8266HTTPUpdateServer::_setUpdaterError()
{
if (_serial_output) Update.printError(Serial);
StreamString str;
Update.printError(str);
_updaterError = str.c_str();
}

20
libraries/ESP8266HTTPUpdateServer/src/ESP8266HTTPUpdateServer.h
View File

@ -5,15 +5,6 @@ class ESP8266WebServer;
class ESP8266HTTPUpdateServer
{
private:
bool _serial_output;
ESP8266WebServer *_server;
static const char *_serverIndex;
static const char *_failedResponse;
static const char *_successResponse;
char * _username;
char * _password;
bool _authenticated;
public:
ESP8266HTTPUpdateServer(bool serial_debug=false);
@ -33,6 +24,17 @@ class ESP8266HTTPUpdateServer
}
void setup(ESP8266WebServer *server, const char * path, const char * username, const char * password);
protected:
void _setUpdaterError();
private:
bool _serial_output;
ESP8266WebServer *_server;
char * _username;
char * _password;
bool _authenticated;
String _updaterError;
};