X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-web.git/blobdiff_plain/a539f6428364200adbdbec1c57dfa3eb2c4f2383..2f10c0de042a95eb53a88b6ae976d6dd9360988f:/code/main.py

diff --git a/code/main.py b/code/main.py
index 551ed04..226a038 100755
--- a/code/main.py
+++ b/code/main.py
@@ -388,7 +388,6 @@ def modifyDict(username, state, fields):
 
         session.save_or_update(machine)
         if update_acl:
-            print >> sys.stderr, machine, machine.administrator
             cache_acls.refreshMachine(machine)
         session.commit()
     except:
@@ -427,15 +426,39 @@ def helpHandler(username, state, path, fields):
     simple = fields.getfirst('simple')
     subjects = fields.getlist('subject')
 
-    help_mapping = {'ParaVM Console': """
+    help_mapping = {
+                    'Autoinstalls': """
+The autoinstaller builds a minimal Debian or Ubuntu system to run as a
+ParaVM.  You can access the resulting system by logging into the <a
+href="help?simple=true&subject=ParaVM+Console">serial console server</a>
+with your Kerberos tickets; there is no root password so sshd will
+refuse login.</p>
+
+<p>Under the covers, the autoinstaller uses our own patched version of
+xen-create-image, which is a tool based on debootstrap.  If you log
+into the serial console while the install is running, you can watch
+it.
+""",
+                    'ParaVM Console': """
 ParaVM machines do not support local console access over VNC.  To
 access the serial console of these machines, you can SSH with Kerberos
 to %s, using the name of the machine as your
 username.""" % config.console.hostname,
                     'HVM/ParaVM': """
 HVM machines use the virtualization features of the processor, while
-ParaVM machines use Xen's emulation of virtualization features.  You
-want an HVM virtualized machine.""",
+ParaVM machines rely on a modified kernel to communicate directly with
+the hypervisor.  HVMs support boot CDs of any operating system, and
+the VNC console applet.  The three-minute autoinstaller produces
+ParaVMs.  ParaVMs typically are more efficient, and always support the
+<a href="help?subject=ParaVM+Console">console server</a>.</p>
+
+<p>More details are <a
+href="https://xvm.scripts.mit.edu/wiki/Paravirtualization">on the
+wiki</a>, including steps to prepare an HVM guest to boot as a ParaVM
+(which you can skip by using the autoinstaller to begin with.)</p>
+
+<p>We recommend using a ParaVM when possible and an HVM when necessary.
+""",
                     'CPU Weight': """
 Don't ask us!  We're as mystified as you are.""",
                     'Owner': """
@@ -633,7 +656,8 @@ Subject: %s
 
 %s
 """ % (to, config.web.hostname, subject, body)
-    p = subprocess.Popen(['/usr/sbin/sendmail', to], stdin=subprocess.PIPE)
+    p = subprocess.Popen(['/usr/sbin/sendmail', '-f', to, to],
+                         stdin=subprocess.PIPE)
     p.stdin.write(mail)
     p.stdin.close()
     p.wait()
@@ -652,7 +676,18 @@ def show_error(op, username, fields, err, emsg, traceback):
 
 def getUser(environ):
     """Return the current user based on the SSL environment variables"""
-    return environ.get('REMOTE_USER', None)
+    user = environ.get('REMOTE_USER')
+    if user is None:
+        return
+    
+    if environ.get('AUTH_TYPE') == 'Negotiate':
+        # Convert the krb5 principal into a krb4 username
+        if not user.endswith('@%s' % config.authn[0].realm):
+            return
+        else:
+            return user.split('@')[0].replace('/', '.')
+    else:
+        return user
 
 def handler(username, state, path, fields):
     operation, path = pathSplit(path)