1. Updated lib-finder to help find binaries

2. Added kvm-helper
2025-12-15 15:53:55 +00:00 · 2022-03-22 20:10:07 -07:00
parent 85ef080a86
commit 08b95944ee
4 changed files with 141 additions and 6 deletions
--- a/modules/kvm-helper.js
+++ b/modules/kvm-helper.js
@@ -0,0 +1,117 @@
+
+
+function getUsers()
+{
+    var res, i, uu = {};
+    require('user-sessions').Current(function (u) { res = u; });
+
+    for (i in res)
+    {
+        if (process.platform != 'win32') { res[i].SessionId = res[i].uid; }
+        if (res[i].State == 'Active' || res[i].State == 'Connected') { uu[process.platform == 'win32' ? res[i].SessionId : res[i].uid] = res[i]; }
+    }
+
+    if (process.platform != 'win32')
+    {
+        var spawnable = this.loginUids();
+        for (i in spawnable)
+        {
+            if (uu[spawnable[i].uid] == null)
+            {
+                uu[spawnable[i].uid] = spawnable[i];
+            }
+        }
+    }
+
+    res = [];
+    for (i in uu)
+    {
+        res.push(uu[i]);
+    }
+    return (res);
+}
+
+if (process.platform == 'linux')
+{
+    var allowedUIDs = [];
+    const uid_max = require('user-sessions').getUidConfig().MAX;
+    const hasXvfb = require('lib-finder').hasBinary('xvfb-run');
+    const hasGnomeSession = require('lib-finder').hasBinary('gnome-session');
+
+    var arg = _MSH().allowedUIDs;
+    if (arg) { try { allowedUIDs = JSON.parse(arg) } catch (z) { allowedUIDs = []; } }
+    if (!Array.isArray(allowedUIDs)) { allowedUIDs = []; }
+
+    if (allowedUIDs.length == 0)
+    {
+        arg = process.argv.find(function (a) { return (a.startsWith('--allowedUIDs=')); });
+        if (arg) { try { allowedUIDs = JSON.parse(arg.split('=')[1]); } catch (z) { allowedUIDs = []; } }
+        if (!Array.isArray(allowedUIDs)) { allowedUIDs = []; }
+    }
+
+    if (allowedUIDs.length == 0) { allowedUIDs = require('user-sessions').loginUids(); }
+
+    function spawnVirtualSession(vuid)
+    {
+        if (vuid > uid_max)
+        {
+            var uid = vuid - uid_max;
+            var username = require('user-sessions').getUsername(uid);
+            var childProcess = require('child_process');
+            var options = { type: childProcess.SpawnTypes.TERM, env: { HISTCONTROL: 'ignoreboth' } };
+            var terminal = childProcess.execFile('/bin/sh', options);
+
+            terminal.stdout.on('data', function (c) { console.info1(c.toString()); });
+            terminal.stdin.write('su ' + username + '\n');
+            terminal.stdin.write('xvfb-run -n 99 -a gnome-session &\n');
+            terminal.stdin.write('exit\nexit\n');
+            terminal.waitExit();
+            return (uid);
+        }
+        else
+        {
+            return (vuid);
+        }
+    }
+
+    function hasVirtualSessionSupport()
+    {
+        return (require('user-sessions').hasLoginCtl && hasXvfb && hasGnomeSession);
+    }
+
+
+    function loginUids()
+    {
+        var lids = module.exports.allowed
+        var uu = {};
+        for (i in lids)
+        {
+            try
+            {
+                uu[lids[i]] = { SessionId: lids[i] + uid_max, State: 'Spawnable', uid: lids[i], StationName: 'xvfb-' + lids[i], Username: require('user-sessions').getUsername(lids[i]) };
+            }
+            catch (z)
+            { }
+        }
+        return (uu);
+    }
+
+    module.exports =
+        {
+            createVirtualSession: spawnVirtualSession,
+            hasVirtualSessionSupport: hasVirtualSessionSupport(),
+            users: getUsers,
+            loginUids: loginUids,
+            allowed: allowedUIDs,
+        }
+}
+else
+{
+    module.exports =
+        {
+            createVirtualSession: function (uid) { return (uid); },
+            hasVirtualSessionSupport: false,
+            users: getUsers,
+            allowed: allowedUIDs
+        }
+}