b994c836
 Nattapon Wongpaet
first commit
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var express = require('express');
var path = require('path');
var app = express();
var fs = require('fs');
var logger = require('./config/logger');
var config = require('./config/config');
function checkReq(req) {
var regex_filetype = /^.*\.(jpg|jpeg|png|mp3|mp4|m4a)$/ig;
var regex_datetime = /(Mon|Tue|Wed|Thu|Fri|Sat|Sun),\s\d{1,2}\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s\d{4}\s([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9]:[0-5][0-9]\sGMT$/g;
var regex_commandId = /^\d+$/g;
var reqModDate = req.get('If-Modified-Since');
var errorCase = null;
// logger.error('>>>>>>>>> ' + req.url);
if (reqModDate != null) {
// logger.error('Req Header Not null');
if (!regex_datetime.test(reqModDate)) {
logger.error('[invalid] date format: ' + reqModDate);
errorCase = 'req.If-Modified-Since=' + reqModDate;
var resc = '40300';
var desc = 'Missing or invalid parameter';
var prompt = '{"prompt":{"resultCode":"' + resc + '","developerMessage":"' + desc + '"}}';
var missingInvalid = errorCase;
return [resc, desc, prompt, missingInvalid];
}
}
if (req.query.name && req.query.type && req.query.commandId) {
if (regex_filetype.test(req.query.name)) {
return true;
}
}
if (!req.query.name) {
logger.error('[missing or invalid]: name');
errorCase = 'req.name=' + req.query.name;
} else if (!req.query.type) {
logger.error('[missing or invalid]: type');
errorCase = 'req.type=' + req.query.type;
} else if (!req.query.commandId) {
logger.error('[missing or invalid]: commandId');
errorCase = 'req.commandId=' + req.query.commandId;
}
var resc = '40300';
var desc = 'Missing or invalid parameter';
var prompt = '{"prompt":{"resultCode":"' + resc + '","developerMessage":"' + desc + '"}}';
var missingInvalid = errorCase;
return [resc, desc, prompt, missingInvalid];
};
function checkFile(req) {
var path;
if (req.query.type === 'audio') {
path = config.mediaPath.audio + req.query.name;
} else if (req.query.type === 'video') {
path = config.mediaPath.video + req.query.name;
} else if (req.query.type === 'image') {
path = config.mediaPath.image + req.query.name;
} else {
var resc = '40401';
var desc = 'File not found';
var prompt = '{"prompt":{"resultCode":"' + resc + '","developerMessage":"' + desc + '"}}';
var missingInvalid = 'req.name=' + req.query.name;
return [resc, desc, prompt, missingInvalid];
}
if (fs.existsSync(path)) {
try {
fs.accessSync(path, fs.constants.R_OK);
var file_name = req.query.name;
return [true, file_name, path];
} catch (err) {
var resc = '40101';
var desc = 'Access denied';
var prompt = '{"prompt":{"resultCode":"' + resc + '","developerMessage":"' + desc + '"}}';
var missingInvalid = 'req.name=' + req.query.name;
return [resc, desc, prompt, missingInvalid];
}
} else {
var resc = '40401';
var desc = 'File not found';
var prompt = '{"prompt":{"resultCode":"' + resc + '","developerMessage":"' + desc + '"}}';
var missingInvalid = 'req.name=' + req.query.name;
return [resc, desc, prompt, missingInvalid];
}
};
function checkHeader(req, path_file) {
try {
// var reqModDate = req.headers['If-Modified-Since'];
var reqModDate = req.get('If-Modified-Since');
var stats = fs.statSync(path_file);
var mtime = stats.mtime;
var size = stats['size'];
if (reqModDate != null) {
reqModDate = new Date(reqModDate);
logger.info('[If-Modified-Since]: ' + reqModDate.toUTCString());
logger.info('[Modified-File] : ' + mtime.toUTCString());
if (reqModDate.toUTCString() == mtime.toUTCString()) {
logger.info('[Req Header]: If-Modified-Since == Modified File');
return [304, mtime, size];
} else {
logger.info('[Req Header]: If-Modified-Since != Modified File');
return [200, mtime, size];
}
} else {
logger.info('[Req Header]: No-header: If-Modified-Since');
logger.info('[Modified-File]: ' + mtime.toUTCString());
return [200, mtime, size];
}
} catch (error) {
logger.error('[Error check header!!!]');
return [200, mtime, size];
}
};
function writeApplog(req) {
logger.info('[Start getMultimedia Validate Parameter]: ' + 'name: ' + req.query.name + ', type=' + req.query.type + ', commandId=' + req.query.commandId);
logger.info('[incommigHeader: If-Modified-Since]: ' + req.get('If-Modified-Since'));
logger.info('[incomming url]: ' + req.protocol + '://' + req.get('host') + req.originalUrl);
}
app.listen(8080, function() {
logger.info('=============================');
logger.info('SRFP-Genesis on port 8080!');
});
app.get('/multiMedia.json', function(req, res) {
var summaryLog;
var request = checkReq(req);
var fileReq = checkFile(req);
// var headerReq = checkHeader(req, fileReq[2]);
var session = req.query.commandId;
var cmd = 'getMultimedia';
var identity = '';
var reqfile = req.query.name;
writeApplog(req);
// [Check Request]
if (request == true && fileReq[0] == true) {
var resc = '20000';
var desc = 'Success';
var headerReq = checkHeader(req, fileReq[2]);
var statusCode = headerReq[0];
var mtime = headerReq[1];
var size = headerReq[2];
summaryLog = logger.summary(session, cmd, identity, resc, desc);
summaryLog.addSuccessBlock('client', cmd, 'null', 'Success');
summaryLog.addSuccessBlock('null', 'getFile', resc, desc);
logger.statRecv(cmd, resc);
logger.statRetn(cmd, resc);
logger.detail(req, cmd, size, mtime.toUTCString());
var content_type;
var regex_image = /^.*\.(jpg|jpeg)$/ig;
var regex_png = /^.*\.(png)$/ig;
var regex_mp3 = /^.*\.(mp3)$/ig;
var regex_mp4 = /^.*\.(mp4)$/ig;
var regex_m4a = /^.*\.(m4a)$/ig;
if (regex_image.test(checkFile(req)[1])) {
content_type = 'image/jpeg';
} else if (regex_png.test(checkFile(req)[1])) {
content_type = 'image/png';
} else if (regex_mp3.test(checkFile(req)[1])) {
content_type = 'audio/mpeg';
} else if (regex_mp4.test(checkFile(req)[1])) {
content_type = 'video/mp4';
} else if (regex_m4a.test(checkFile(req)[1])) {
content_type = 'audio/m4a';
}
logger.info('[Path File]: ' + fileReq[2]);
if (statusCode == 200) {
logger.info('[statusCode]: 200');
var resc = '20000';
var desc = 'Success';
logger.info('[resultCode]: ' + resc + ', [developerMessage]: ' + desc);
res.writeHead(200, {
"Last-Modified": mtime.toUTCString(),
"Content-Disposition": 'attachment; filename="' + checkFile(req)[1] + '"',
"Content-Type": content_type,
"Content-Length": size
});
fs.createReadStream(checkFile(req)[2]).pipe(res);
// res.write(img);
// res.end();
}
// return 304!
else {
logger.info('[statusCode]: 304');
var resc = '20000';
var desc = 'Success';
logger.info('[resultCode]: ' + resc + ', [developerMessage]: ' + desc);
res.writeHead(304, {
// "Content-Disposition": 'attachment; filename="' + checkFile(req)[1] + '"',
"Content-Type": content_type,
"Content-Length": size
});
res.end();
}
} else if (request == true && fileReq[0] != true) {
var status_code = fileReq[0].substring(0, 3);
logger.error('[statusCode]: ' + status_code);
logger.error('[resultCode]: ' + fileReq[0] + ', [developerMessage]: ' + fileReq[1]);
summaryLog = logger.summary(session, cmd, identity, fileReq[0], fileReq[1]);
summaryLog.addSuccessBlock('client', cmd, 'null', 'Success');
summaryLog.addErrorBlock('null', 'getFile', fileReq[0], fileReq[1], fileReq[3]);
logger.statRecv(cmd, fileReq[0]);
logger.statRetn(cmd, fileReq[0]);
logger.detail(req, cmd, null, null);
res.writeHead(status_code, {
// "Content-Disposition": 'attachment; filename="' + req.query.name + '"',
"Content-Type": 'application/json'
});
res.write(fileReq[2]);
res.end();
} else if (request != true) {
var status_code = request[0].substring(0, 3);
logger.error('[statusCode]: ' + status_code);
logger.error('[resultCode]: ' + request[0] + ', [developerMessage]: ' + request[1]);
summaryLog = logger.summary(session, cmd, identity, request[0], request[1]);
summaryLog.addErrorBlock('client', cmd, request[0], request[1], request[3]);
logger.statRecv(cmd, request[0]);
logger.statRetn(cmd, request[0]);
logger.alarm(cmd, request[0]);
logger.detail(req, cmd, null, null);
res.writeHead(status_code, {
// "Content-Disposition": 'attachment; filename="' + req.query.name + '"',
"Content-Type": 'application/json'
});
res.write(request[2]);
res.end();
} else {
var resc = '50000';
var desc = 'System error';
var prompt = '{"prompt":{"resultCode":"' + resc + '","developerMessage":"' + desc + '"}}';;
logger.error('[statusCode]: 500');
logger.error('[resultCode]: ' + resc + ', [developerMessage]: ' + desc);
summaryLog = logger.summary(session, cmd, identity, resc, desc);
summaryLog.addErrorBlock('client', cmd, resc, desc, 'system_error');
logger.statRecv(cmd, resc);
logger.statRetn(cmd, resc);
logger.alarm(cmd, resc);
logger.detail(req, cmd, null, null);
res.writeHead(500, {
// "Content-Disposition": 'attachment; filename="' + req.query.name + '"',
"Content-Type": 'application/json'
});
res.write(prompt);
res.end();
}
summaryLog.flush();
logger.info('=============================');
});
app.use(function(req, res, next) {
writeApplog(req);
var resc = '40400';
var desc = 'Unknown URL';
var prompt = '{"prompt":{"resultCode":"' + resc + '","developerMessage":"' + desc + '"}}';
var session = 'null';
var cmd = 'getMultimedia';
var identity = 'null';
logger.error('[statusCode]: 404');
logger.error('[resultCode]: ' + resc + ', [developerMessage]: ' + desc);
logger.statRecv(cmd, resc);
logger.statRetn(cmd, resc);
logger.alarm(cmd, resc);
logger.detail(req, cmd, null, null);
summaryLog = logger.summary(session, cmd, identity, resc, desc);
summaryLog.addErrorBlock('client', cmd, resc, desc, 'req.url=' + req.url);
summaryLog.flush();
res.writeHead(404, {
// "Content-Disposition": 'attachment; filename="' + req.query.name + '"',
"Content-Type": 'application/json'
});
res.write(prompt);
res.end();
logger.info('=============================');
});
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