7e2db9e19e
Preserve current working directory. Support explicit options.env environment variables. Support multiple commands separated by semicolons. Distinguish between elevation errors and command errors. Fixes: #39 Fixes: #88 Fixes: #91
673 lines
34 KiB
JavaScript
673 lines
34 KiB
JavaScript
var Node = {
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child: require('child_process'),
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crypto: require('crypto'),
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fs: require('fs'),
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os: require('os'),
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path: require('path'),
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process: process,
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util: require('util')
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};
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function Attempt(instance, end) {
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var platform = Node.process.platform;
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if (platform === 'darwin') return Mac(instance, end);
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if (platform === 'linux') return Linux(instance, end);
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if (platform === 'win32') return Windows(instance, end);
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end(new Error('Platform not yet supported.'));
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}
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function EscapeDoubleQuotes(string) {
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if (typeof string !== 'string') throw new Error('Expected a string.');
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return string.replace(/"/g, '\\"');
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}
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function Exec() {
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if (arguments.length < 1 || arguments.length > 3) {
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throw new Error('Wrong number of arguments.');
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}
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var command = arguments[0];
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var options = {};
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var end = function() {};
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if (typeof command !== 'string') {
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throw new Error('Command should be a string.');
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}
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if (arguments.length === 2) {
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if (Node.util.isObject(arguments[1])) {
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options = arguments[1];
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} else if (Node.util.isFunction(arguments[1])) {
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end = arguments[1];
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} else {
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throw new Error('Expected options or callback.');
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}
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} else if (arguments.length === 3) {
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if (Node.util.isObject(arguments[1])) {
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options = arguments[1];
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} else {
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throw new Error('Expected options to be an object.');
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}
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if (Node.util.isFunction(arguments[2])) {
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end = arguments[2];
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} else {
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throw new Error('Expected callback to be a function.');
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}
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}
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if (/^sudo/i.test(command)) {
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return end(new Error('Command should not be prefixed with "sudo".'));
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}
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if (typeof options.name === 'undefined') {
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var title = Node.process.title;
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if (ValidName(title)) {
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options.name = title;
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} else {
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return end(new Error('process.title cannot be used as a valid name.'));
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}
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} else if (!ValidName(options.name)) {
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var error = '';
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error += 'options.name must be alphanumeric only ';
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error += '(spaces are allowed) and <= 70 characters.';
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return end(new Error(error));
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}
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if (typeof options.icns !== 'undefined') {
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if (typeof options.icns !== 'string') {
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return end(new Error('options.icns must be a string if provided.'));
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} else if (options.icns.trim().length === 0) {
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return end(new Error('options.icns must not be empty if provided.'));
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}
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}
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if (typeof options.env !== 'undefined') {
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if (typeof options.env !== 'object') {
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return end(new Error('options.env must be an object if provided.'));
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} else if (Object.keys(options.env).length === 0) {
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return end(new Error('options.env must not be empty if provided.'));
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} else {
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for (var key in options.env) {
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var value = options.env[key];
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if (typeof key !== 'string' || typeof value !== 'string') {
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return end(
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new Error('options.env environment variables must be strings.')
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);
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}
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// "Environment variable names used by the utilities in the Shell and
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// Utilities volume of IEEE Std 1003.1-2001 consist solely of uppercase
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// letters, digits, and the '_' (underscore) from the characters defined
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// in Portable Character Set and do not begin with a digit. Other
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// characters may be permitted by an implementation; applications shall
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// tolerate the presence of such names."
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if (!/^[a-zA-Z_][a-zA-Z0-9_]*$/.test(key)) {
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return end(
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new Error(
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'options.env has an invalid environment variable name: ' +
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JSON.stringify(key)
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)
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);
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}
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if (/[\r\n]/.test(value)) {
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return end(
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new Error(
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'options.env has an invalid environment variable value: ' +
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JSON.stringify(value)
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)
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);
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}
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}
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}
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}
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var platform = Node.process.platform;
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if (platform !== 'darwin' && platform !== 'linux' && platform !== 'win32') {
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return end(new Error('Platform not yet supported.'));
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}
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var instance = {
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command: command,
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options: options,
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uuid: undefined,
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path: undefined
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};
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Attempt(instance, end);
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}
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function Linux(instance, end) {
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LinuxBinary(instance,
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function(error, binary) {
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if (error) return end(error);
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var command = [];
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// Preserve current working directory:
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command.push('cd "' + EscapeDoubleQuotes(Node.process.cwd()) + '";');
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// Export environment variables:
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for (var key in instance.options.env) {
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var value = instance.options.env[key];
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command.push('export ' + key + '="' + EscapeDoubleQuotes(value) + '";');
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}
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command.push('"' + EscapeDoubleQuotes(binary) + '"');
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if (/kdesudo/i.test(binary)) {
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command.push(
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'--comment',
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'"' + instance.options.name + ' wants to make changes. ' +
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'Enter your password to allow this."'
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);
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command.push('-d'); // Do not show the command to be run in the dialog.
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command.push('--');
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} else if (/pkexec/i.test(binary)) {
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command.push('--disable-internal-agent');
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}
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var magic = 'SUDOPROMPT\n';
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command.push(
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'/bin/bash -c "echo ' + EscapeDoubleQuotes(magic.trim()) + '; ' +
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EscapeDoubleQuotes(instance.command) +
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'"'
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);
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command = command.join(' ');
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Node.child.exec(command, { maxBuffer: MAX_BUFFER },
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function(error, stdout, stderr) {
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// ISSUE 88:
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// We must distinguish between elevation errors and command errors.
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//
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// KDESUDO:
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// kdesudo provides no way to do this. We add a magic marker to know
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// if elevation succeeded. Any error thereafter is a command error.
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//
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// PKEXEC:
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// "Upon successful completion, the return value is the return value of
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// PROGRAM. If the calling process is not authorized or an
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// authorization could not be obtained through authentication or an
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// error occured, pkexec exits with a return value of 127. If the
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// authorization could not be obtained because the user dismissed the
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// authentication dialog, pkexec exits with a return value of 126."
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//
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// However, we do not rely on pkexec's return of 127 since our magic
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// marker is more reliable, and we already use it for kdesudo.
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var elevated = stdout ? stdout.toString('utf8', 0, magic.length) : '';
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if (elevated) stdout = stdout.slice(magic.length);
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// Only normalize the error if it is definitely not a command error:
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// In other words, if we know that the command was never elevated.
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// We do not inspect error messages beyond NO_POLKIT_AGENT.
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// We cannot rely on English errors because of internationalization.
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if (error && !elevated) {
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if (/No authentication agent found/.test(stderr)) {
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error.message = NO_POLKIT_AGENT;
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} else {
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error.message = PERMISSION_DENIED;
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}
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}
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end(error, stdout, stderr);
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}
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);
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}
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);
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}
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function LinuxBinary(instance, end) {
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var index = 0;
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// We used to prefer gksudo over pkexec since it enabled a better prompt.
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// However, gksudo cannot run multiple commands concurrently.
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var paths = ['/usr/bin/kdesudo', '/usr/bin/pkexec'];
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function test() {
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if (index === paths.length) {
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return end(new Error('Unable to find pkexec or kdesudo.'));
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}
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var path = paths[index++];
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Node.fs.stat(path,
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function(error) {
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if (error) {
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if (error.code === 'ENOTDIR') return test();
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if (error.code === 'ENOENT') return test();
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end(error);
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} else {
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end(undefined, path);
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}
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}
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);
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}
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test();
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}
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function Mac(instance, callback) {
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var temp = Node.os.tmpdir();
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if (!temp) return callback(new Error('os.tmpdir() not defined.'));
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var user = Node.process.env.USER; // Applet shell scripts require $USER.
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if (!user) return callback(new Error('env[\'USER\'] not defined.'));
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UUID(instance,
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function(error, uuid) {
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if (error) return callback(error);
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instance.uuid = uuid;
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instance.path = Node.path.join(
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temp,
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instance.uuid,
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instance.options.name + '.app'
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);
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function end(error, stdout, stderr) {
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Remove(Node.path.dirname(instance.path),
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function(errorRemove) {
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if (error) return callback(error);
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if (errorRemove) return callback(errorRemove);
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callback(undefined, stdout, stderr);
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}
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);
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}
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MacApplet(instance,
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function(error) {
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if (error) return end(error);
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MacIcon(instance,
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function(error) {
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if (error) return end(error);
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MacPropertyList(instance,
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function(error) {
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if (error) return end(error);
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MacCommand(instance,
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function(error) {
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if (error) return end(error);
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MacOpen(instance,
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function(error) {
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if (error) return end(error);
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MacResult(instance, end);
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}
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);
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}
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);
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}
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);
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}
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);
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}
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);
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}
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);
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}
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function MacApplet(instance, end) {
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var parent = Node.path.dirname(instance.path);
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Node.fs.mkdir(parent,
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function(error) {
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if (error) return end(error);
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var zip = Node.path.join(parent, 'sudo-prompt-applet.zip');
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Node.fs.writeFile(zip, APPLET, 'base64',
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function(error) {
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if (error) return end(error);
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var command = [];
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command.push('/usr/bin/unzip');
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command.push('-o'); // Overwrite any existing applet.
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command.push('"' + EscapeDoubleQuotes(zip) + '"');
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command.push('-d "' + EscapeDoubleQuotes(instance.path) + '"');
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command = command.join(' ');
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Node.child.exec(command, end);
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}
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);
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}
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);
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}
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function MacCommand(instance, end) {
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var path = Node.path.join(
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instance.path,
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'Contents',
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'MacOS',
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'sudo-prompt-command'
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);
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var script = [];
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// Preserve current working directory.
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// We do this for commands that rely on relative paths.
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// This runs in a subshell and will not change the cwd of sudo-prompt-script.
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var cwd = Node.process.cwd();
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script.push('cd "' + EscapeDoubleQuotes(cwd) + '"');
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// Export environment variables:
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for (var key in instance.options.env) {
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var value = EscapeDoubleQuotes(instance.options.env[key]);
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script.push('export ' + key + '="' + value + '"');
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}
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script.push(instance.command);
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script = script.join('\n');
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Node.fs.writeFile(path, script, 'utf-8', end);
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}
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function MacIcon(instance, end) {
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if (!instance.options.icns) return end();
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Node.fs.readFile(instance.options.icns,
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function(error, buffer) {
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if (error) return end(error);
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var icns = Node.path.join(
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instance.path,
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'Contents',
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'Resources',
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'applet.icns'
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);
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Node.fs.writeFile(icns, buffer, end);
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}
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);
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}
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function MacOpen(instance, end) {
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// We must run the binary directly so that the cwd will apply.
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var binary = Node.path.join(instance.path, 'Contents', 'MacOS', 'applet');
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// We must set the cwd so that the AppleScript can find the shell scripts.
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var options = { cwd: Node.path.dirname(binary) };
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// We use the relative path rather than the absolute path. The instance.path
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// may contain spaces which the cwd can handle, but which exec() cannot.
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Node.child.exec('./' + Node.path.basename(binary), options, end);
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}
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function MacPropertyList(instance, end) {
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// Value must be in single quotes (not double quotes) according to man entry.
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// e.g. defaults write com.companyname.appname "Default Color" '(255, 0, 0)'
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// The defaults command will be changed in an upcoming major release to only
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// operate on preferences domains. General plist manipulation utilities will
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// be folded into a different command-line program.
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var plist = Node.path.join(instance.path, 'Contents', 'Info.plist');
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var path = EscapeDoubleQuotes(plist);
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var key = EscapeDoubleQuotes('CFBundleName');
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var value = instance.options.name + ' Password Prompt';
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if (/'/.test(value)) {
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return end(new Error('Value should not contain single quotes.'));
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}
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var command = [];
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command.push('/usr/bin/defaults');
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command.push('write');
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command.push('"' + path + '"');
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command.push('"' + key + '"');
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command.push("'" + value + "'"); // We must use single quotes for value.
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command = command.join(' ');
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Node.child.exec(command, end);
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}
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function MacResult(instance, end) {
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var cwd = Node.path.join(instance.path, 'Contents', 'MacOS');
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Node.fs.readFile(Node.path.join(cwd, 'code'), 'utf-8',
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function(error, code) {
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if (error) {
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if (error.code === 'ENOENT') return end(new Error(PERMISSION_DENIED));
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end(error);
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} else {
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Node.fs.readFile(Node.path.join(cwd, 'stdout'), 'utf-8',
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function(error, stdout) {
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if (error) return end(error);
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Node.fs.readFile(Node.path.join(cwd, 'stderr'), 'utf-8',
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function(error, stderr) {
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if (error) return end(error);
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code = parseInt(code.trim(), 10); // Includes trailing newline.
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if (code === 0) {
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end(undefined, stdout, stderr);
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} else {
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error = new Error(
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'Command failed: ' + instance.command + '\n' + stderr
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);
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error.code = code;
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end(error, stdout, stderr);
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}
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}
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);
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}
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);
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}
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}
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);
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}
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function Remove(path, end) {
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if (typeof path !== 'string' || !path.trim()) {
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return end(new Error('Argument path not defined.'));
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}
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var command = [];
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if (Node.process.platform === 'win32') {
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if (/"/.test(path)) {
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return end(new Error('Argument path cannot contain double-quotes.'));
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}
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command.push('rmdir /s /q "' + path + '"');
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} else {
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command.push('/bin/rm');
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command.push('-rf');
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command.push('"' + EscapeDoubleQuotes(Node.path.normalize(path)) + '"');
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}
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command = command.join(' ');
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Node.child.exec(command, end);
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}
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function UUID(instance, end) {
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Node.crypto.randomBytes(256,
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function(error, random) {
|
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if (error) random = Date.now() + '' + Math.random();
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var hash = Node.crypto.createHash('SHA256');
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hash.update('sudo-prompt-3');
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hash.update(instance.options.name);
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hash.update(instance.command);
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hash.update(random);
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var uuid = hash.digest('hex').slice(-32);
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if (!uuid || typeof uuid !== 'string' || uuid.length !== 32) {
|
|
// This is critical to ensure we don't remove the wrong temp directory.
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return end(new Error('Expected a valid UUID.'));
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}
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end(undefined, uuid);
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}
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);
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}
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function ValidName(string) {
|
|
// We use 70 characters as a limit to side-step any issues with Unicode
|
|
// normalization form causing a 255 character string to exceed the fs limit.
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if (!/^[a-z0-9 ]+$/i.test(string)) return false;
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if (string.trim().length === 0) return false;
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if (string.length > 70) return false;
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return true;
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}
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function Windows(instance, callback) {
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var temp = Node.os.tmpdir();
|
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if (!temp) return callback(new Error('os.tmpdir() not defined.'));
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UUID(instance,
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function(error, uuid) {
|
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if (error) return callback(error);
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instance.uuid = uuid;
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instance.path = Node.path.join(temp, instance.uuid);
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if (/"/.test(instance.path)) {
|
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// We expect double quotes to be reserved on Windows.
|
|
// Even so, we test for this and abort if they are present.
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return callback(
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new Error('instance.path cannot contain double-quotes.')
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);
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}
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instance.pathElevate = Node.path.join(instance.path, 'elevate.vbs');
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instance.pathExecute = Node.path.join(instance.path, 'execute.bat');
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instance.pathCommand = Node.path.join(instance.path, 'command.bat');
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instance.pathStdout = Node.path.join(instance.path, 'stdout');
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instance.pathStderr = Node.path.join(instance.path, 'stderr');
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instance.pathStatus = Node.path.join(instance.path, 'status');
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Node.fs.mkdir(instance.path,
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function(error) {
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if (error) return callback(error);
|
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function end(error, stdout, stderr) {
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Remove(instance.path,
|
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function(errorRemove) {
|
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if (error) return callback(error);
|
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if (errorRemove) return callback(errorRemove);
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callback(undefined, stdout, stderr);
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}
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);
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}
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WindowsWriteExecuteScript(instance,
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function(error) {
|
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if (error) return end(error);
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|
WindowsWriteCommandScript(instance,
|
|
function(error) {
|
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if (error) return end(error);
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WindowsElevate(instance,
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function(error) {
|
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if (error) return end(error);
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WindowsWaitForStatus(instance,
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|
function(error) {
|
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if (error) return end(error);
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WindowsResult(instance, end);
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}
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);
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}
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);
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}
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);
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}
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);
|
|
}
|
|
);
|
|
}
|
|
);
|
|
}
|
|
|
|
function WindowsElevate(instance, end) {
|
|
// We used to use this for executing elevate.vbs:
|
|
// var command = 'cscript.exe //NoLogo "' + instance.pathElevate + '"';
|
|
var command = [];
|
|
command.push('powershell.exe');
|
|
command.push('Start-Process');
|
|
command.push('-FilePath');
|
|
// Escape characters for cmd using double quotes:
|
|
// Escape characters for PowerShell using single quotes:
|
|
// Escape single quotes for PowerShell using backtick:
|
|
// See: https://ss64.com/ps/syntax-esc.html
|
|
command.push('"\'' + instance.pathExecute.replace(/'/g, "`'") + '\'"');
|
|
command.push('-WindowStyle hidden');
|
|
command.push('-Verb runAs');
|
|
command = command.join(' ');
|
|
var child = Node.child.exec(command,
|
|
function(error, stdout, stderr) {
|
|
// We used to return PERMISSION_DENIED only for error messages containing
|
|
// the string 'canceled by the user'. However, Windows internationalizes
|
|
// error messages (issue 96) so now we must assume all errors here are
|
|
// permission errors. This seems reasonable, given that we already run the
|
|
// user's command in a subshell.
|
|
if (error) return end(new Error(PERMISSION_DENIED));
|
|
end();
|
|
}
|
|
);
|
|
child.stdin.end(); // Otherwise PowerShell waits indefinitely on Windows 7.
|
|
}
|
|
|
|
function WindowsResult(instance, end) {
|
|
Node.fs.readFile(instance.pathStatus, 'utf-8',
|
|
function(error, code) {
|
|
if (error) return end(error);
|
|
Node.fs.readFile(instance.pathStdout, 'utf-8',
|
|
function(error, stdout) {
|
|
if (error) return end(error);
|
|
Node.fs.readFile(instance.pathStderr, 'utf-8',
|
|
function(error, stderr) {
|
|
if (error) return end(error);
|
|
code = parseInt(code.trim(), 10);
|
|
if (code === 0) {
|
|
end(undefined, stdout, stderr);
|
|
} else {
|
|
error = new Error(
|
|
'Command failed: ' + instance.command + '\r\n' + stderr
|
|
);
|
|
error.code = code;
|
|
end(error, stdout, stderr);
|
|
}
|
|
}
|
|
);
|
|
}
|
|
);
|
|
}
|
|
);
|
|
}
|
|
|
|
function WindowsWaitForStatus(instance, end) {
|
|
// VBScript cannot wait for the elevated process to finish so we have to poll.
|
|
// VBScript cannot return error code if user does not grant permission.
|
|
// PowerShell can be used to elevate and wait on Windows 10.
|
|
// PowerShell can be used to elevate on Windows 7 but it cannot wait.
|
|
// powershell.exe Start-Process cmd.exe -Verb runAs -Wait
|
|
Node.fs.stat(instance.pathStatus,
|
|
function(error, stats) {
|
|
if ((error && error.code === 'ENOENT') || stats.size < 2) {
|
|
// Retry if file does not exist or is not finished writing.
|
|
// We expect a file size of 2. That should cover at least "0\r".
|
|
// We use a 1 second timeout to keep a light footprint for long-lived
|
|
// sudo-prompt processes.
|
|
setTimeout(
|
|
function() {
|
|
// If administrator has no password and user clicks Yes, then
|
|
// PowerShell returns no error and execute (and command) never runs.
|
|
// We check that command output has been redirected to stdout file:
|
|
Node.fs.stat(instance.pathStdout,
|
|
function(error) {
|
|
if (error) return end(new Error(PERMISSION_DENIED));
|
|
WindowsWaitForStatus(instance, end);
|
|
}
|
|
);
|
|
},
|
|
1000
|
|
);
|
|
} else if (error) {
|
|
end(error);
|
|
} else {
|
|
end();
|
|
}
|
|
}
|
|
);
|
|
}
|
|
|
|
function WindowsWriteCommandScript(instance, end) {
|
|
var cwd = Node.process.cwd();
|
|
if (/"/.test(cwd)) {
|
|
// We expect double quotes to be reserved on Windows.
|
|
// Even so, we test for this and abort if they are present.
|
|
return end(new Error('process.cwd() cannot contain double-quotes.'));
|
|
}
|
|
var script = [];
|
|
script.push('@echo off');
|
|
// Set code page to UTF-8:
|
|
script.push('chcp 65001>nul');
|
|
// Preserve current working directory:
|
|
// We pass /d as an option in case the cwd is on another drive (issue 70).
|
|
script.push('cd /d "' + cwd + '"');
|
|
// Export environment variables:
|
|
for (var key in instance.options.env) {
|
|
// "The characters <, >, |, &, ^ are special command shell characters, and
|
|
// they must be preceded by the escape character (^) or enclosed in
|
|
// quotation marks. If you use quotation marks to enclose a string that
|
|
// contains one of the special characters, the quotation marks are set as
|
|
// part of the environment variable value."
|
|
// In other words, Windows assigns everything that follows the equals sign
|
|
// to the value of the variable, whereas Unix systems ignore double quotes.
|
|
var value = instance.options.env[key].replace(/([<>\\|&^])/g, '^$1');
|
|
script.push('set ' + key + '=' + value);
|
|
}
|
|
script.push(instance.command);
|
|
script = script.join('\r\n');
|
|
Node.fs.writeFile(instance.pathCommand, script, 'utf-8', end);
|
|
}
|
|
|
|
function WindowsWriteElevateScript(instance, end) {
|
|
// We do not use VBScript to elevate since it does not return an error if
|
|
// the user does not grant permission. This is here for reference.
|
|
// var script = [];
|
|
// script.push('Set objShell = CreateObject("Shell.Application")');
|
|
// script.push(
|
|
// 'objShell.ShellExecute "' + instance.pathExecute + '", "", "", "runas", 0'
|
|
// );
|
|
// script = script.join('\r\n');
|
|
// Node.fs.writeFile(instance.pathElevate, script, 'utf-8', end);
|
|
}
|
|
|
|
function WindowsWriteExecuteScript(instance, end) {
|
|
var script = [];
|
|
script.push('@echo off');
|
|
script.push(
|
|
'call "' + instance.pathCommand + '"' +
|
|
' > "' + instance.pathStdout + '" 2> "' + instance.pathStderr + '"'
|
|
);
|
|
script.push('(echo %ERRORLEVEL%) > "' + instance.pathStatus + '"');
|
|
script = script.join('\r\n');
|
|
Node.fs.writeFile(instance.pathExecute, script, 'utf-8', end);
|
|
}
|
|
|
|
module.exports.exec = Exec;
|
|
|
|
// We used to expect that applet.app would be included with this module.
|
|
// This could not be copied when sudo-prompt was packaged within an asar file.
|
|
// We now store applet.app as a zip file in base64 within index.js instead.
|
|
// To recreate: "zip -r ../applet.zip Contents" (with applet.app as CWD).
|
|
// The zip file must not include applet.app as the root directory so that we
|
|
// can extract it directly to the target app directory.
|
|
var APPLET = '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var PERMISSION_DENIED = 'User did not grant permission.';
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var NO_POLKIT_AGENT = 'No polkit authentication agent found.';
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// See issue 66:
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var MAX_BUFFER = 134217728;
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