Refactoring ssh-keygen function (#1533)

red/runtime/storage/localfilesystem/projects/index.js

@@ -23,6 +23,7 @@ var crypto = require('crypto');
 var storageSettings = require("../settings");
 var util = require("../util");
 var gitTools = require("./git");
+var sshTools = require("./ssh");
 
 var Projects = require("./Project");
 
@@ -89,6 +90,7 @@ function init(_settings, _runtime) {
                 projectsEnabled = false;
             } else {
                 Projects.init(settings,runtime);
+                sshTools.init(settings,runtime);
                 projectsDir = fspath.join(settings.userDir,"projects");
                 if (!settings.readOnly) {
                     return fs.ensureDir(projectsDir)

red/runtime/storage/localfilesystem/projects/ssh.js

@@ -0,0 +1,80 @@
+/**
+ * Copyright JS Foundation and other contributors, http://js.foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ **/
+
+var exec = require('child_process').exec;
+var spawn = require('child_process').spawn;
+
+var sshkeygenCommand = "ssh-keygen";
+
+var log;
+
+function runSshKeygenCommand(args,cwd,env) {
+    // console.log("[run ssh-keygen] args:", args);
+    return new Promise(function(resolve, reject) {
+        var child = spawn(sshkeygenCommand, args, {cwd: cwd, detached: true, env: env});
+        var stdout = "";
+        var stderr = "";
+
+        child.stdout.on('data', function(data) {
+            stdout += data;
+        });
+        child.stderr.on('data', function(data) {
+            stderr += data;
+        });
+        child.on('close', function(code, signal) {
+            if (code !== 0) {
+                var err = new Error(stderr);
+                err.stdout = stdout;
+                err.stderr = stderr;
+                if (/passphrase is too short/.test(stderr)) {
+                    err.code = "key_passphrase_too_short";
+                } else if(/Key must at least be 1024 bits/.test(stderr)) {
+                    err.code = "key_length_too_short";
+                }
+                reject(err);
+            }
+            else {
+                resolve(stdout);
+            }
+        });
+    });
+}
+
+function init(_settings, _runtime) {
+    log = _runtime.log;
+}
+
+function generateKey(options) {
+    var args = ['-q', '-t', 'rsa'];
+    if (options.size) {
+        args.push('-b', options.size);
+    }
+    if (options.location) {
+        args.push('-f', options.location);
+    }
+    if (options.comment) {
+        args.push('-C', options.comment);
+    }
+    if (options.password) {
+        args.push('-N', options.password);
+    }
+    return runSshKeygenCommand(args,__dirname);
+}
+
+module.exports = {
+    init: init,
+    generateKey: generateKey,
+};