app.js - compiler-explorer - Rivoreo Source Code Repositories

 #!/usr/bin/env node

 // Copyright (c) 2012-2015, Matt Godbolt
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are met:
 //
 //     * Redistributions of source code must retain the above copyright notice,
 //       this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above copyright
 //       notice, this list of conditions and the following disclaimer in the
 //       documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 // ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 // LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 // CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 // SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 // CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 // ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 // POSSIBILITY OF SUCH DAMAGE.

 var nopt = require('nopt'),
     os = require('os'),
     props = require('./lib/properties'),
     compileHandler = require('./lib/compile').compileHandler,
     express = require('express'),
     child_process = require('child_process'),
     path = require('path'),
     fs = require('fs-extra'),
     Promise = require('promise');

 var opts = nopt({
     'env': [String],
     'rootDir': [String]
 });

 var propHierarchy = [
     'defaults',
     opts.env || 'dev',
     os.hostname()];

 var rootDir = opts.rootDir || './etc';

 props.initialize(rootDir + '/config', propHierarchy);

 var port = props.get('gcc-explorer', 'port', 10240);
 var staticMaxAgeMs = props.get('gcc-explorer', 'staticMaxAgeMs', 0);

 function loadSources() {
     var sourcesDir = "lib/sources";
     var sources = fs.readdirSync(sourcesDir)
         .filter(function (file) {
             return file.match(/.*\.js$/);
         })
         .map(function (file) {
             return require("./" + path.join(sourcesDir, file));
         });
     return sources;
 }

 var fileSources = loadSources();
 var sourceToHandler = {};
 fileSources.forEach(function (source) {
     sourceToHandler[source.urlpart] = source;
 });

 function compareOn(key) {
     return function (xObj, yObj) {
         var x = xObj[key];
         var y = yObj[key];
         if (x < y) return -1;
         if (x > y) return 1;
         return 0;
     };
 }

 function getSource(req, res, next) {
     var bits = req.url.split("/");
     var handler = sourceToHandler[bits[1]];
     if (!handler) {
         next();
         return;
     }
     var action = bits[2];
     if (action == "list") action = handler.list;
     else if (action == "load") action = handler.load;
     else if (action == "save") action = handler.save;
     else action = null;
     if (action === null) {
         next();
         return;
     }
     action.apply(handler, bits.slice(3).concat(function (err, response) {
         res.set('Cache-Control', 'public, max-age=' + staticMaxAgeMs);
         if (err) {
             res.end(JSON.stringify({err: err}));
         } else {
             res.end(JSON.stringify(response));
         }
     }));
 }

 function configuredCompilers() {
     var exes = props.get("gcc-explorer", "compilers", "/usr/bin/g++").split(":");
     var ndk = props.get('gcc-explorer', 'androidNdk');
     if (ndk) {
         var toolchains = fs.readdirSync(ndk + "/toolchains");
         toolchains.forEach(function (v, i, a) {
             var path = ndk + "/toolchains/" + v + "/prebuilt/linux-x86_64/bin/";
             if (fs.existsSync(path)) {
                 var cc = fs.readdirSync(path).filter(function (filename) {
                     return filename.indexOf("g++") != -1;
                 });
                 a[i] = path + cc[0];
             } else {
                 a[i] = null;
             }
         });
         toolchains = toolchains.filter(function (x) {
             return x !== null;
         });
         exes.push.apply(exes, toolchains);
     }
     // Map any named compilers to their executable
     return exes.map(function (name) {
         var base = "compiler." + name;
         var exe = props.get("gcc-explorer", base + ".exe", "");
         if (!exe) {
             return {id: name, exe: name, name: name};
         }
         return {
             id: name,
             exe: exe,
             name: props.get("gcc-explorer", base + ".name", name),
             alias: props.get("gcc-explorer", base + ".alias")
         };
     });
 }

 function clientOptionsHandler(compilers, fileSources) {
     var sources = fileSources.map(function (source) {
         return {name: source.name, urlpart: source.urlpart};
     });
     sources = sources.sort(compareOn("name"));
     var options = {
         google_analytics_account: props.get('gcc-explorer', 'clientGoogleAnalyticsAccount', 'UA-55180-6'),
         google_analytics_enabled: props.get('gcc-explorer', 'clientGoogleAnalyticsEnabled', false),
         sharing_enabled: props.get('gcc-explorer', 'clientSharingEnabled', true),
         github_ribbon_enabled: props.get('gcc-explorer', 'clientGitHubRibbonEnabled', true),
         urlshortener: props.get('gcc-explorer', 'clientURLShortener', 'google'),
         defaultCompiler: props.get('gcc-explorer', 'defaultCompiler', ''),
         defaultSource: props.get('gcc-explorer', 'defaultSource', ''),
         compilers: compilers,
         language: props.get("gcc-explorer", "language"),
         compileOptions: props.get("gcc-explorer", "options"),
         sources: sources
     };
     var text = "var OPTIONS = " + JSON.stringify(options) + ";";
     return function getClientOptions(req, res) {
         res.set('Content-Type', 'application/javascript');
         res.set('Cache-Control', 'public, max-age=' + staticMaxAgeMs);
         res.end(text);
     };
 }

 function getCompilerInfo(compilerInfo) {
     return new Promise(function (resolve) {
         var compiler = compilerInfo.exe;
         child_process.exec(compiler + ' --version', function (err, output) {
             if (err) return resolve(null);
             var version = output.split('\n')[0];
             child_process.exec(compiler + ' --target-help', function (err, output) {
                 var options = {};
                 if (!err) {
                     var splitness = /--?[-a-zA-Z]+( ?[-a-zA-Z]+)/;
                     output.split('\n').forEach(function (line) {
                         var match = line.match(splitness);
                         if (!match) return;
                         options[match[0]] = true;
                     });
                 }
                 compilerInfo.version = version;
                 compilerInfo.supportedOpts = options;
                 resolve(compilerInfo);
             });
         });
     });
 }

 function findCompilers() {
     var compilers = configuredCompilers().map(getCompilerInfo);
     return Promise.all(compilers).then(function (compilers) {
         compilers = compilers.filter(function (x) {
             return x !== null;
         });
         compilers = compilers.sort(function (x, y) {
             return x.name < y.name ? -1 : x.name > y.name ? 1 : 0;
         });
         return compilers;
     });
 }

 findCompilers().then(function (compilers) {
     var webServer = express(),
         sFavicon = require('serve-favicon'),
         sStatic = require('serve-static'),
         bodyParser = require('body-parser'),
         logger = require('morgan'),
         compression = require('compression');

     webServer
         .use(logger('combined'))
         .use(compression())
         .use(sFavicon('static/favicon.ico'))
         .use(sStatic('static', {maxAge: staticMaxAgeMs}))
         .use(bodyParser.urlencoded({extended: true}))
         .get('/client-options.js', clientOptionsHandler(compilers, fileSources))
         .use('/source', getSource)
         .post('/compile', compileHandler(compilers));

     // GO!
     console.log("=======================================");
     console.log("Listening on http://" + os.hostname() + ":" + port + "/");
     console.log("=======================================");
     webServer.listen(port);
 }).catch(function (err) {
     console.log("Error: " + err.stack);
 });
	#!/usr/bin/env node

	// Copyright (c) 2012-2015, Matt Godbolt
	// All rights reserved.
	//
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are met:
	//
	// * Redistributions of source code must retain the above copyright notice,
	// this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above copyright
	// notice, this list of conditions and the following disclaimer in the
	// documentation and/or other materials provided with the distribution.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
	// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
	// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
	// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
	// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
	// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
	// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
	// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
	// POSSIBILITY OF SUCH DAMAGE.

	var nopt = require('nopt'),
	os = require('os'),
	props = require('./lib/properties'),
	compileHandler = require('./lib/compile').compileHandler,
	express = require('express'),
	child_process = require('child_process'),
	path = require('path'),
	fs = require('fs-extra'),
	Promise = require('promise');

	var opts = nopt({
	'env': [String],
	'rootDir': [String]
	});

	var propHierarchy = [
	'defaults',
	opts.env \|\| 'dev',
	os.hostname()];

	var rootDir = opts.rootDir \|\| './etc';

	props.initialize(rootDir + '/config', propHierarchy);

	var port = props.get('gcc-explorer', 'port', 10240);
	var staticMaxAgeMs = props.get('gcc-explorer', 'staticMaxAgeMs', 0);

	function loadSources() {
	var sourcesDir = "lib/sources";
	var sources = fs.readdirSync(sourcesDir)
	.filter(function (file) {
	return file.match(/.*\.js$/);
	})
	.map(function (file) {
	return require("./" + path.join(sourcesDir, file));
	});
	return sources;
	}

	var fileSources = loadSources();
	var sourceToHandler = {};
	fileSources.forEach(function (source) {
	sourceToHandler[source.urlpart] = source;
	});

	function compareOn(key) {
	return function (xObj, yObj) {
	var x = xObj[key];
	var y = yObj[key];
	if (x < y) return -1;
	if (x > y) return 1;
	return 0;
	};
	}

	function getSource(req, res, next) {
	var bits = req.url.split("/");
	var handler = sourceToHandler[bits[1]];
	if (!handler) {
	next();
	return;
	}
	var action = bits[2];
	if (action == "list") action = handler.list;
	else if (action == "load") action = handler.load;
	else if (action == "save") action = handler.save;
	else action = null;
	if (action === null) {
	next();
	return;
	}
	action.apply(handler, bits.slice(3).concat(function (err, response) {
	res.set('Cache-Control', 'public, max-age=' + staticMaxAgeMs);
	if (err) {
	res.end(JSON.stringify({err: err}));
	} else {
	res.end(JSON.stringify(response));
	}
	}));
	}

	function configuredCompilers() {
	var exes = props.get("gcc-explorer", "compilers", "/usr/bin/g++").split(":");
	var ndk = props.get('gcc-explorer', 'androidNdk');
	if (ndk) {
	var toolchains = fs.readdirSync(ndk + "/toolchains");
	toolchains.forEach(function (v, i, a) {
	var path = ndk + "/toolchains/" + v + "/prebuilt/linux-x86_64/bin/";
	if (fs.existsSync(path)) {
	var cc = fs.readdirSync(path).filter(function (filename) {
	return filename.indexOf("g++") != -1;
	});
	a[i] = path + cc[0];
	} else {
	a[i] = null;
	}
	});
	toolchains = toolchains.filter(function (x) {
	return x !== null;
	});
	exes.push.apply(exes, toolchains);
	}
	// Map any named compilers to their executable
	return exes.map(function (name) {
	var base = "compiler." + name;
	var exe = props.get("gcc-explorer", base + ".exe", "");
	if (!exe) {
	return {id: name, exe: name, name: name};
	}
	return {
	id: name,
	exe: exe,
	name: props.get("gcc-explorer", base + ".name", name),
	alias: props.get("gcc-explorer", base + ".alias")
	};
	});
	}

	function clientOptionsHandler(compilers, fileSources) {
	var sources = fileSources.map(function (source) {
	return {name: source.name, urlpart: source.urlpart};
	});
	sources = sources.sort(compareOn("name"));
	var options = {
	google_analytics_account: props.get('gcc-explorer', 'clientGoogleAnalyticsAccount', 'UA-55180-6'),
	google_analytics_enabled: props.get('gcc-explorer', 'clientGoogleAnalyticsEnabled', false),
	sharing_enabled: props.get('gcc-explorer', 'clientSharingEnabled', true),
	github_ribbon_enabled: props.get('gcc-explorer', 'clientGitHubRibbonEnabled', true),
	urlshortener: props.get('gcc-explorer', 'clientURLShortener', 'google'),
	defaultCompiler: props.get('gcc-explorer', 'defaultCompiler', ''),
	defaultSource: props.get('gcc-explorer', 'defaultSource', ''),
	compilers: compilers,
	language: props.get("gcc-explorer", "language"),
	compileOptions: props.get("gcc-explorer", "options"),
	sources: sources
	};
	var text = "var OPTIONS = " + JSON.stringify(options) + ";";
	return function getClientOptions(req, res) {
	res.set('Content-Type', 'application/javascript');
	res.set('Cache-Control', 'public, max-age=' + staticMaxAgeMs);
	res.end(text);
	};
	}

	function getCompilerInfo(compilerInfo) {
	return new Promise(function (resolve) {
	var compiler = compilerInfo.exe;
	child_process.exec(compiler + ' --version', function (err, output) {
	if (err) return resolve(null);
	var version = output.split('\n')[0];
	child_process.exec(compiler + ' --target-help', function (err, output) {
	var options = {};
	if (!err) {
	var splitness = /--?[-a-zA-Z]+( ?[-a-zA-Z]+)/;
	output.split('\n').forEach(function (line) {
	var match = line.match(splitness);
	if (!match) return;
	options[match[0]] = true;
	});
	}
	compilerInfo.version = version;
	compilerInfo.supportedOpts = options;
	resolve(compilerInfo);
	});
	});
	});
	}

	function findCompilers() {
	var compilers = configuredCompilers().map(getCompilerInfo);
	return Promise.all(compilers).then(function (compilers) {
	compilers = compilers.filter(function (x) {
	return x !== null;
	});
	compilers = compilers.sort(function (x, y) {
	return x.name < y.name ? -1 : x.name > y.name ? 1 : 0;
	});
	return compilers;
	});
	}

	findCompilers().then(function (compilers) {
	var webServer = express(),
	sFavicon = require('serve-favicon'),
	sStatic = require('serve-static'),
	bodyParser = require('body-parser'),
	logger = require('morgan'),
	compression = require('compression');

	webServer
	.use(logger('combined'))
	.use(compression())
	.use(sFavicon('static/favicon.ico'))
	.use(sStatic('static', {maxAge: staticMaxAgeMs}))
	.use(bodyParser.urlencoded({extended: true}))
	.get('/client-options.js', clientOptionsHandler(compilers, fileSources))
	.use('/source', getSource)
	.post('/compile', compileHandler(compilers));

	// GO!
	console.log("=======================================");
	console.log("Listening on http://" + os.hostname() + ":" + port + "/");
	console.log("=======================================");
	webServer.listen(port);
	}).catch(function (err) {
	console.log("Error: " + err.stack);
	});