CesiumUtil.zip_cesium_gis_made_rodkgo

'use strict'; (function () { var express = require('express'); var compression = require('compression'); var fs = require('fs'); var url = require('url'); var request = require('request'); var gzipHeader = Buffer.from('1F8B08', 'hex'); var yargs = require('yargs').options({ 'port' : { 'default' : 81, 'description' : 'Port to listen on.' }, 'public' : { 'type' : 'boolean', 'description' : 'Run a public server that listens on all interfaces.' }, 'upstream-proxy' : { 'description' : 'A standard proxy server that will be used to retrieve data. Specify a URL including port, e.g. "http://proxy:8000".' }, 'bypass-upstream-proxy-hosts' : { 'description' : 'A comma separated list of hosts that will bypass the specified upstream_proxy, e.g. "lanhost1,lanhost2"' }, 'help' : { 'alias' : 'h', 'type' : 'boolean', 'description' : 'Show this help.' } }); var argv = yargs.argv; if (argv.help) { return yargs.showHelp(); } // eventually this mime type configuration will need to change // https://github.com/visionmedia/send/commit/d2cb54658ce65948b0ed6e5fb5de69d022bef941 // *NOTE* Any changes you make here must be mirrored in web.config. var mime = express.static.mime; mime.define({ 'application/json' : ['czml', 'json', 'geojson', 'topojson'], 'image/crn' : ['crn'], 'image/ktx' : ['ktx'], 'model/gltf+json' : ['gltf'], 'model/gltf-binary' : ['bgltf', 'glb'], 'application/octet-stream' : ['b3dm', 'pnts', 'i3dm', 'cmpt'], 'text/plain' : ['glsl'] }); var app = express(); app.use(compression()); app.use(function(req, res, next) { res.header('Access-Control-Allow-Origin', '*'); res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept'); next(); }); var dataPath = "E:\CesiumData"; // app.use(express.static(__dirname)); function checkGzipAndNext(req, res, next) { var reqUrl = url.parse(req.url, true); var filePath = reqUrl.pathname.substring(1); filePath = dataPath + "/" + filePath; var readStream = fs.createReadStream(filePath, { start: 0, end: 2 }); readStream.on('error', function(err) { next(); }); readStream.on('data', function(chunk) { if (chunk.equals(gzipHeader)) { res.header('Content-Encoding', 'gzip'); } next(); }); } // 확장자가 이러한 형식일 때는 파일시트템에서 읽어보아서 gzip 형식인가를 검사하고 만일 gzip 이라면 response header 를 수정해준다. var knownTilesetFormats = [/\.b3dm/, /\.pnts/, /\.i3dm/, /\.cmpt/, /\.glb/, /tileset.*\.json$/, /\.terrain/]; app.get(knownTilesetFormats, checkGzipAndNext); app.use(express.static(dataPath)); function getRemoteUrlFromParam(req) { var remoteUrl = req.params[0]; if (remoteUrl) { // add http:// to the URL if no protocol is present if (!/^https?:\/\//.test(remoteUrl)) { remoteUrl = 'http://' + remoteUrl; } remoteUrl = url.parse(remoteUrl); // copy query string remoteUrl.search = url.parse(req.url).search; } return remoteUrl; } var dontProxyHeaderRegex = /^(?:Host|Proxy-Connection|Connection|Keep-Alive|Transfer-Encoding|TE|Trailer|Proxy-Authorization|Proxy-Authenticate|Upgrade)$/i; function filterHeaders(req, headers) { var result = {}; // filter out headers that are listed in the regex above Object.keys(headers).forEach(function(name) { if (!dontProxyHeaderRegex.test(name)) { result[name] = headers[name]; } }); return result; } var upstreamProxy = argv['upstream-proxy']; var bypassUpstreamProxyHosts = {}; if (argv['bypass-upstream-proxy-hosts']) { argv['bypass-upstream-proxy-hosts'].split(',').forEach(function(host) { bypassUpstreamProxyHosts[host.toLowerCase()] = true; }); } app.get('/proxy/*', function(req, res, next) { // look for request like http://localhost:8080/proxy/http://example.com/file?query=1 var remoteUrl = getRemoteUrlFromParam(req); if (!remoteUrl) { // look for request like http://localhost:8080/proxy/?http%3A%2F%2Fexample.com%2Ffile%3Fquery%3D1 remoteUrl = Object.keys(req.query)[0]; if (remoteUrl) { remoteUrl = url.parse(remoteUrl); } } if (!remoteUrl) { return res.status(400).send('No url specified.'); } if (!remoteUrl.protocol) { remoteUrl.protocol = 'http:'; } var proxy; if (upstreamProxy && !(remoteUrl.host in bypassUpstreamProxyHosts)) { proxy = upstreamProxy; } // encoding : null means "body" passed to the callback will be raw bytes request.get({ url : url.format(remoteUrl), headers : filterHeaders(req, req.headers), encoding : null, proxy : proxy }, function(error, response, body) { var code = 500; if (response) { code = response.statusCode; res.header(filterHeaders(req, response.headers)); } res.status(code).send(body); }); }); var server = app.listen(argv.port, argv.public ? undefined : 'localhost', function() { if (argv.public) { console.log('Server running publicly. Connect to http://localhost:%d/', server.address().port); } else { console.log('Server running locally. Connect to http://localhost:%d/', server.address().port); } }); server.on('error', function (e) { if (e.code === 'EADDRINUSE') { console.log('Error: Port %d is already in use, select a different port.', argv.port); console.log('Example: node server.js --port %d', argv.port + 1); } else if (e.code === 'EACCES') { console.log('Error: This process does not have permission to listen on port %d.', argv.port); if (argv.port < 1024) { console.log('Try a port number higher than 1024.'); } } console.log(e); process.exit(1); }); server.on('close', function() { console.log('Cesium development server stopped.'); }); var isFirstSig = true; process.on('SIGINT', function() { if (isFirstSig) { console.log('Cesium development server shutting down.'); server.close(function() { process.exit(0); }); isFirstSig = false; } else { console.log('Cesium development server force kill.'); process.exit(1); } }); })();