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express-server/node_modules/cross-spawn/lib/util/escapeArgument.js

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+'use strict';
+
+function escapeArgument(arg, quote) {
+    // Convert to string
+    arg = '' + arg;
+
+    // If we are not going to quote the argument,
+    // escape shell metacharacters, including double and single quotes:
+    if (!quote) {
+        arg = arg.replace(/([()%!^<>&|;,"'\s])/g, '^$1');
+    } else {
+        // Sequence of backslashes followed by a double quote:
+        // double up all the backslashes and escape the double quote
+        arg = arg.replace(/(\\*)"/g, '$1$1\\"');
+
+        // Sequence of backslashes followed by the end of the string
+        // (which will become a double quote later):
+        // double up all the backslashes
+        arg = arg.replace(/(\\*)$/, '$1$1');
+
+        // All other backslashes occur literally
+
+        // Quote the whole thing:
+        arg = '"' + arg + '"';
+    }
+
+    return arg;
+}
+
+module.exports = escapeArgument;

express-server/node_modules/cross-spawn/lib/util/escapeCommand.js

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+'use strict';
+
+var escapeArgument = require('./escapeArgument');
+
+function escapeCommand(command) {
+    // Do not escape if this command is not dangerous..
+    // We do this so that commands like "echo" or "ifconfig" work
+    // Quoting them, will make them unaccessible
+    return /^[a-z0-9_-]+$/i.test(command) ? command : escapeArgument(command, true);
+}
+
+module.exports = escapeCommand;

express-server/node_modules/cross-spawn/lib/util/hasEmptyArgumentBug.js

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+'use strict';
+
+// See: https://github.com/IndigoUnited/node-cross-spawn/pull/34#issuecomment-221623455
+function hasEmptyArgumentBug() {
+    var nodeVer;
+
+    if (process.platform !== 'win32') {
+        return false;
+    }
+
+    nodeVer = process.version.substr(1).split('.').map(function (num) {
+        return parseInt(num, 10);
+    });
+
+    return (nodeVer[0] === 0 && nodeVer[1] < 12);
+}
+
+module.exports = hasEmptyArgumentBug();

express-server/node_modules/cross-spawn/lib/util/readShebang.js

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+'use strict';
+
+var fs = require('fs');
+var LRU = require('lru-cache');
+var shebangCommand = require('shebang-command');
+
+var shebangCache = new LRU({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec
+
+function readShebang(command) {
+    var buffer;
+    var fd;
+    var shebang;
+
+    // Check if it is in the cache first
+    if (shebangCache.has(command)) {
+        return shebangCache.get(command);
+    }
+
+    // Read the first 150 bytes from the file
+    buffer = new Buffer(150);
+
+    try {
+        fd = fs.openSync(command, 'r');
+        fs.readSync(fd, buffer, 0, 150, 0);
+        fs.closeSync(fd);
+    } catch (e) { /* empty */ }
+
+    // Attempt to extract shebang (null is returned if not a shebang)
+    shebang = shebangCommand(buffer.toString());
+
+    // Store the shebang in the cache
+    shebangCache.set(command, shebang);
+
+    return shebang;
+}
+
+module.exports = readShebang;

express-server/node_modules/cross-spawn/lib/util/resolveCommand.js

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+'use strict';
+
+var path = require('path');
+var which = require('which');
+var LRU = require('lru-cache');
+
+var commandCache = new LRU({ max: 50, maxAge: 30 * 1000 });  // Cache just for 30sec
+
+function resolveCommand(command, noExtension) {
+    var resolved;
+
+    noExtension = !!noExtension;
+    resolved = commandCache.get(command + '!' + noExtension);
+
+    // Check if its resolved in the cache
+    if (commandCache.has(command)) {
+        return commandCache.get(command);
+    }
+
+    try {
+        resolved = !noExtension ?
+            which.sync(command) :
+            which.sync(command, { pathExt: path.delimiter + (process.env.PATHEXT || '') });
+    } catch (e) { /* empty */ }
+
+    commandCache.set(command + '!' + noExtension, resolved);
+
+    return resolved;
+}
+
+module.exports = resolveCommand;