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server_win.js
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server_win.js
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var express = require("express");
var multer = require('multer');
var app = express();
var upload = multer({ dest: './st_files/'});
var spawn = require('child_process').spawn;
var plcLog = '';
var openplc = spawn('./core/openplc');
openplc.stdout.on('data', function(data)
{
plcLog += data;
plcLog += '\r\n';
});
openplc.stderr.on('data', function(data)
{
plcLog += data;
plcLog += '\r\n';
});
openplc.on('close', function(code)
{
plcLog += 'OpenPLC application terminated\r\n';
});
var plcRunning = true;
var compilationOutput = '';
var compilationEnded = false;
var compilationSuccess = false;
var uploadedFileName = '';
var uploadedFilePath = '';
app.use(multer({ dest: './st_files/',
rename: function (fieldname, filename)
{
return filename;
},
onFileUploadStart: function (file)
{
console.log(file.originalname + ' is starting ...');
},
onFileUploadComplete: function (file)
{
uploadedFileName = file.originalname;
uploadedFilePath = file.path;
}
}));
app.get('/',function(req,res)
{
showMainPage(req,res);
});
app.get('/run',function(req,res)
{
if (plcRunning == false)
{
console.log('Starting OpenPLC Software...');
plcLog = 'Starting OpenPLC Application...\r\n';
openplc = spawn('./core/openplc');
openplc.stdout.on('data', function(data)
{
plcLog += data;
plcLog += '\r\n';
});
openplc.stderr.on('data', function(data)
{
plcLog += data;
plcLog += '\r\n';
});
openplc.on('close', function(code)
{
plcLog += 'OpenPLC application terminated\r\n';
});
plcRunning = true;
}
var htmlString = '\
<!DOCTYPE html>\
<html>\
<header>\
<meta http-equiv="refresh" content="0; url=/" />\
</header>\
</html>';
res.send(htmlString);
});
app.get('/stop',function(req,res)
{
if (plcRunning == true)
{
console.log('Stopping OpenPLC Software...');
openplc.kill('SIGTERM');
plcRunning = false;
}
var htmlString = '\
<!DOCTYPE html>\
<html>\
<header>\
<meta http-equiv="refresh" content="0; url=/" />\
</header>\
</html>';
res.send(htmlString);
});
app.post('/api/upload',function(req,res)
{
upload(req,res,function(err)
{
if(err)
{
return res.end("Error uploading file.");
}
var htmlString = '\
<!DOCTYPE html>\
<html>\
<header>\
<meta http-equiv="refresh" content="0; url=/uploadStatus" />\
</header>\
</html>';
res.send(htmlString);
console.log(uploadedFileName + ' uploaded to ' + uploadedFilePath);
console.log('finishing old program...');
openplc.kill('SIGTERM');
plcRunning = false;
compilationOutput = '';
compilationEnded = false;
compilationSuccess = false;
optimizeCode(uploadedFileName);
});
});
app.post('/api/changeModbusCfg',function(req,res)
{
upload(req,res,function(err)
{
if(err)
{
return res.end("Error uploading file.");
}
var htmlString = '\
<!DOCTYPE html>\
<html>\
<header>\
<meta http-equiv="refresh" content="5; url=/" />\
<meta name="viewport" content="width=device-width, user-scalable=no">\
<style>\
input[type=text] {border:0px; border-bottom:1px solid black; width:100%}\
button[type=button] \
{\
padding:10px; \
background-color:#4369DB; \
border-radius:10px; \
border-style:double; \
color:white;\
font-size:large;\
margin: 5 auto;\
width: 150px;\
} \
</style>\
</header>\
<body>\
<p align="center" style="font-family:verdana; font-size:60px; margin-top: 0px; margin-bottom: 10px">OpenPLC Server</p>\
<p align="center" style="font-family:verdana; font-size:25px; margin-top: 0px; margin-bottom: 10px"><br>Modbus configuration file uploaded</p>\
</body>\
</html>';
res.send(htmlString);
var mover = spawn('mv', ['-f', './st_files/' + uploadedFileName, './core/mbconfig.cfg']);
mover.on('close', function(code)
{
if (code != 0)
{
console.log('error moving modbus config file');
}
});
var copier = spawn('cp', ['-f', './core/mbconfig.cfg', './']);
copier.on('close', function(code)
{
if (code != 0)
{
console.log('error copying modbus config file');
}
});
});
});
app.listen(8080,function()
{
console.log("Working on port 8080");
});
app.get('/viewLogs',function(req,res)
{
var htmlString = '\
<!DOCTYPE html>\
<html>\
<header>\
<meta http-equiv="refresh" content="3">\
<meta name="viewport" content="width=device-width, user-scalable=no">\
<style>\
input[type=text] {border:0px; border-bottom:1px solid black; width:100%}\
button[type=button] \
{\
padding:10px; \
background-color:#4369DB; \
border-radius:10px; \
border-style:double; \
color:white;\
font-size:large;\
margin: 5 auto;\
width: 150px;\
} \
</style>\
</header>\
\
<body>\
<p align="center" style="font-family:verdana; font-size:60px; margin-top: 0px; margin-bottom: 10px">OpenPLC Server</p>\
<div style="text-align:left; font-family:verdana; font-size:16px"> \
<p>';
htmlString += plcLog;
htmlString += '\
</p>\
</div>\
</body>\
</html>';
htmlString = htmlString.replace(/(?:\r\n|\r|\n)/g, '<br />');
res.send(htmlString);
});
app.get('/uploadStatus',function(req,res)
{
var htmlString = '\
<!DOCTYPE html>\
<html>\
<header>';
if (!compilationEnded)
{
htmlString += '<meta http-equiv="refresh" content="3">';
}
htmlString += '\
<meta name="viewport" content="width=device-width, user-scalable=no">\
<style>\
input[type=text] {border:0px; border-bottom:1px solid black; width:100%}\
button[type=button] \
{\
padding:10px; \
background-color:#4369DB; \
border-radius:10px; \
border-style:double; \
color:white;\
font-size:large;\
margin: 5 auto;\
width: 150px;\
} \
</style>\
</header>\
\
<body>\
<p align="center" style="font-family:verdana; font-size:60px; margin-top: 0px; margin-bottom: 10px">OpenPLC Server</p>\
<p align="center" style="font-family:verdana; font-size:25px; margin-top: 0px; margin-bottom: 10px"><br>';
if (compilationEnded)
{
if (compilationSuccess)
{
htmlString += 'Program compiled without errors!</p>';
}
else
{
htmlString += 'Error compiling program. Please check console log.</p>';
}
}
else
{
htmlString += 'Uploading program...</p>';
}
htmlString += '\
<div style="text-align:left; font-family:verdana; font-size:16px"> \
<p>';
htmlString += compilationOutput;
htmlString += '\
</p>\
</div>\
</body>\
</html>';
htmlString = htmlString.replace(/(?:\r\n|\r|\n)/g, '<br />');
res.send(htmlString);
});
function showMainPage(req,res)
{
var htmlString = '\
<!DOCTYPE html>\
<html>\
<header>\
<meta name="viewport" content="width=device-width, user-scalable=no">\
<style>\
input[type=text] {border:0px; border-bottom:1px solid black; width:100%}\
button[type=button] \
{\
padding:10px; \
background-color:#555555; \
border-radius:10px; \
border-style:double; \
color:white;\
font-size:large;\
margin: 5 auto;\
width: 150px;\
} \
</style>\
</header>\
\
<body>\
<p align="center" style="font-family:verdana; font-size:60px; margin-top: 0px; margin-bottom: 10px">OpenPLC Server</p>';
if (plcRunning == true)
{
htmlString += '<p align="center" style="font-family:verdana; font-size:25px; margin-top: 0px; margin-bottom: 10px"><br>Current PLC Status: <font color = "green">Running</font></p>';
}
else
{
htmlString += '<p align="center" style="font-family:verdana; font-size:25px; margin-top: 0px; margin-bottom: 10px"><br>Current PLC Status: <font color = "red">Stopped</font></p>';
}
htmlString += '\
<br>\
<div style="text-align:center"> \
<button type="button" style="background-color:green" onclick="location.href=\'run\';">Run</button>\
<button type="button" style="background-color:FireBrick" onclick="location.href=\'stop\';">Stop</button>\
</div> \
<br>\
<div style="text-align:center"> \
<button type="button" style="width:300px" onclick="location.href=\'viewLogs\';">View PLC logs</button>\
</div> \
<br><br><br>\
<p align="center" style="font-family:verdana; font-size:25px; margin-top: 0px; margin-bottom: 10px">Change PLC Program</p>\
<div style="text-align:center"> \
<form id = "uploadForm"\
enctype = "multipart/form-data"\
action = "/api/upload"\
method = "post">\
<br>\
<input type="file" name="file" id="file" class="inputfile" accept=".st">\
<input type="submit" value="Upload Program" name="submit">\
</form>\
</div> \
<br><br><br>\
<p align="center" style="font-family:verdana; font-size:25px; margin-top: 0px; margin-bottom: 10px">Change Modbus Master Configuration</p>\
<p align="center" style="font-family:verdana; font-size:14px; margin-top: 0px; margin-bottom: 10px">Changing this only have effect if OpenPLC is using the Modbus Master Driver</p>\
<div style="text-align:center"> \
<form id = "uploadMB"\
enctype = "multipart/form-data"\
action = "/api/changeModbusCfg"\
method = "post">\
<br>\
<input type="file" name="mbConfig" id="mbConfig" class="inputfile" accept=".cfg">\
<input type="submit" value="Upload Configuration" name="submit">\
</form>\
</div> \
</body>\
</html>';
res.send(htmlString);
}
function optimizeCode(fileName)
{
console.log('optimizing ST code...');
compilationOutput += 'optimizing ST code...\r\n';
var optimizer = spawn('./st_optimizer', ['./st_files/' + fileName, './st_files/' + fileName]);
optimizer.stdout.on('data', function(data)
{
console.log('' + data);
compilationOutput += data;
compilationOutput += '\r\n';
});
optimizer.stderr.on('data', function(data)
{
console.log('' + data);
compilationOutput += data;
compilationOutput += '\r\n';
});
optimizer.on('close', function(code)
{
if (code != 0)
{
console.log('Error optimizing program. Please check console log');
compilationOutput += 'Error optimizing program. Please check console log\r\n';
compilationEnded = true;
}
else
{
console.log('Program optimized successfully');
compilationOutput += 'Program optimized successfully\r\n';
compileProgram(fileName);
}
});
}
function compileProgram(fileName)
{
console.log('compiling new program...');
compilationOutput += 'compiling new program...\r\n';
var compiler = spawn('./iec2c', ['./st_files/' + fileName]);
compiler.stdout.on('data', function(data)
{
console.log('' + data);
compilationOutput += data;
compilationOutput += '\r\n';
});
compiler.stderr.on('data', function(data)
{
console.log('' + data);
compilationOutput += data;
compilationOutput += '\r\n';
});
compiler.on('close', function(code)
{
if (code != 0)
{
console.log('Error compiling program. Please check console log');
compilationOutput += 'Error compiling program. Please check console log\r\n';
compilationEnded = true;
}
else
{
console.log('Program compiled successfully');
compilationOutput += 'Program compiled successfully\r\n';
moveFiles();
}
});
}
function moveFiles()
{
console.log('moving files...');
compilationOutput += 'moving files...\r\n';
var copier = spawn('mv', ['-f', 'POUS.c', 'POUS.h', 'LOCATED_VARIABLES.h', 'VARIABLES.csv', 'Config0.c', 'Config0.h', 'Res0.c', './core/']);
copier.on('close', function(code)
{
if (code != 0)
{
console.log('error moving files');
compilationOutput += 'error moving files\r\n';
compilationEnded = true;
}
else
{
compileOpenPLC();
}
});
}
function compileOpenPLC()
{
console.log('compiling OpenPLC...');
compilationOutput += 'compiling OpenPLC...\r\n';
var exec_script = spawn('bash', ['./build_core.sh']);
exec_script.stdout.on('data', function(data)
{
console.log('' + data);
compilationOutput += data;
});
exec_script.stderr.on('data', function(data)
{
console.log('' + data);
compilationOutput += data;
});
exec_script.on('close', function(code)
{
if (code != 0)
{
console.log('exec error: ' + error);
compilationOutput += 'exec error: ' + error + '\r\n';
console.log('error compiling OpenPLC. Please check your program');
compilationOutput += 'error compiling OpenPLC. Please check your program\r\n';
}
else
{
console.log('compiled without errors');
compilationOutput += 'compiled without errors\r\n';
console.log('Starting OpenPLC Software...');
plcLog = 'Starting OpenPLC Application...\r\n';
openplc = spawn('./core/openplc');
openplc.stdout.on('data', function(data)
{
plcLog += data;
plcLog += '\r\n';
});
openplc.stderr.on('data', function(data)
{
plcLog += data;
plcLog += '\r\n';
});
openplc.on('close', function(code)
{
plcLog += 'OpenPLC application terminated\r\n';
});
plcRunning = true;
compilationSuccess = true;
}
compilationEnded = true;
});
}