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CommandStation-EX/CommandDistributor.cpp
Asbelos 0e3046e24f
Lcd experimental (#46)
* LCD/OLED Implementation
* OLED basic working 32
*132 display
* LCD/OLED startup ok
* Simplified setup
* Missing freememory include
* Format Width
Allow right padding number width in String format
* Intermediate scroll
* Compile issues with no LCD
* Clean buffers at startup
* Support for format left padded numbers
* Smarter Scrolling
And forced start messages
Free Ram in slot 2
* LCD tidying
Neater setup block in .ino.
Dropped unnecessary code
No-scroll if display not full
* Missing %E format support
This is used in WifiInterface checkForOK
* Wifi correction and memory guard
2020-10-12 14:32:47 -04:00

73 lines
2.6 KiB
C++

/*
* © 2020,Gregor Baues, Chris Harlow. All rights reserved.
*
* This file is part of CommandStation-EX
*
* This is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* It is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
*/
#include <Arduino.h>
#include "CommandDistributor.h"
#include "WiThrottle.h"
DCCEXParser * CommandDistributor::parser=0;
bool CommandDistributor::parse(byte clientId,byte * buffer, Print * streamer) {
// SIDE EFFECT WARNING:::
// We know that parser will read the entire buffer before starting to write to it.
// Otherwise we would have to copy the buffer elsewhere and RAM is in short supply.
bool closeAfter=false;
// Intercept HTTP requests
if (isHTTP(buffer)) {
if (httpCallback) httpCallback(streamer, buffer);
closeAfter = true;
}
else if (buffer[0] == '<') {
if (!parser) parser = new DCCEXParser();
parser->parse(streamer, buffer, true); // tell JMRI parser that ACKS are blocking because we can't handle the async
}
else WiThrottle::getThrottle(clientId)->parse(*streamer, buffer);
return closeAfter;
}
bool CommandDistributor::isHTTP(byte * buffer) {
// POST GET PUT PATCH DELETE
// You may think a simple strstr() is better... but not when ram & time is in short supply
switch (buffer[0]) {
case 'P':
if (buffer[1] == 'U' && buffer[2] == 'T' && buffer[3] == ' ' ) return true;
if (buffer[1] == 'O' && buffer[2] == 'S' && buffer[3] == 'T' && buffer[4] == ' ') return true;
if (buffer[1] == 'A' && buffer[2] == 'T' && buffer[3] == 'C' && buffer[4] == 'H' && buffer[5] == ' ') return true;
return false;
case 'G':
if (buffer[1] == 'E' && buffer[2] == 'T' && buffer[3] == ' ' ) return true;
return false;
case 'D':
if (buffer[1] == 'E' && buffer[2] == 'L' && buffer[3] == 'E' && buffer[4] == 'T' && buffer[5] == 'E' && buffer[6] == ' ') return true;
return false;
default:
return false;
}
}
void CommandDistributor::setHTTPCallback(HTTP_CALLBACK callback) {
httpCallback = callback;
}
HTTP_CALLBACK CommandDistributor::httpCallback=0;