Add overlord mode, accessible from xvm.mit.edu/overlord by

[invirt/packages/invirt-web.git] / code / main.py

diff --git a/code/main.py b/code/main.py
index 1fbe0d0..2740a74 100755 (executable)
--- a/code/main.py
+++ b/code/main.py
@@ -31,8 +31,6 @@ if __name__ == '__main__':
     import atexit
     atexit.register(printError)
 
-sys.path.append('/home/ecprice/.local/lib/python2.5/site-packages')
-
 import templates
 from Cheetah.Template import Template
 import sipb_xen_database
@@ -41,6 +39,15 @@ import validation
 import cache_acls
 from webcommon import InvalidInput, CodeError, State
 import controls
+from getafsgroups import getAfsGroupMembers
+
+def pathSplit(path):
+    if path.startswith('/'):
+        path = path[1:]
+    i = path.find('/')
+    if i == -1:
+        i = len(path)
+    return path[:i], path[i:]
 
 class Checkpoint:
     def __init__(self):
@@ -136,14 +143,14 @@ def hasVnc(status):
     return False
 
 def parseCreate(username, state, fields):
-    kws = dict([(kw, fields.getfirst(kw)) for kw in 'name description owner memory disksize vmtype cdrom clone_from'.split()])
+    kws = dict([(kw, fields.getfirst(kw)) for kw in 'name description owner memory disksize vmtype cdrom autoinstall'.split()])
     validate = validation.Validate(username, state, strict=True, **kws)
     return dict(contact=username, name=validate.name, description=validate.description, memory=validate.memory,
                 disksize=validate.disksize, owner=validate.owner, machine_type=validate.vmtype,
                 cdrom=getattr(validate, 'cdrom', None),
-                clone_from=getattr(validate, 'clone_from', None))
+                autoinstall=getattr(validate, 'autoinstall', None))
 
-def create(username, state, fields):
+def create(username, state, path, fields):
     """Handler for create requests."""
     try:
         parsed_fields = parseCreate(username, state, fields)
@@ -206,14 +213,14 @@ def getListDict(username, state):
              can_clone=can_clone)
     return d
 
-def listVms(username, state, fields):
+def listVms(username, state, path, fields):
     """Handler for list requests."""
     checkpoint.checkpoint('Getting list dict')
     d = getListDict(username, state)
     checkpoint.checkpoint('Got list dict')
     return templates.list(searchList=[d])
 
-def vnc(username, state, fields):
+def vnc(username, state, path, fields):
     """VNC applet page.
 
     Note that due to same-domain restrictions, the applet connects to
@@ -310,7 +317,7 @@ def getDiskInfo(data_dict, machine):
         data_dict['%s_size' % name] = "%0.1f GiB" % (disk.size / 1024.)
     return disk_fields
 
-def command(username, state, fields):
+def command(username, state, path, fields):
     """Handler for running commands like boot and delete on a VM."""
     back = fields.getfirst('back')
     try:
@@ -396,7 +403,7 @@ def modifyDict(username, state, fields):
                 command="modify",
                 machine=machine)
 
-def modify(username, state, fields):
+def modify(username, state, path, fields):
     """Handler for modifying attributes of a machine."""
     try:
         modify_dict = modifyDict(username, state, fields)
@@ -416,7 +423,7 @@ def modify(username, state, fields):
     return templates.info(searchList=[info_dict])
 
 
-def helpHandler(username, state, fields):
+def helpHandler(username, state, path, fields):
     """Handler for help messages."""
     simple = fields.getfirst('simple')
     subjects = fields.getlist('subject')
@@ -467,7 +474,7 @@ console will suffer artifacts.
     return templates.help(searchList=[d])
 
 
-def badOperation(u, s, e):
+def badOperation(u, s, p, e):
     """Function called when accessing an unknown URI."""
     return ({'Status': '404 Not Found'}, 'Invalid operation.')
 
@@ -566,18 +573,25 @@ def infoDict(username, state, machine):
              fields = fields)
     return d
 
-def info(username, state, fields):
+def info(username, state, path, fields):
     """Handler for info on a single VM."""
     machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine
     d = infoDict(username, state, machine)
     checkpoint.checkpoint('Got infodict')
     return templates.info(searchList=[d])
 
-def unauthFront(_, _2, fields):
+def unauthFront(_, _2, _3, fields):
     """Information for unauth'd users."""
     return templates.unauth(searchList=[{'simple' : True}])
 
-def throwError(_, __, ___):
+def overlord(username, state, path, fields):
+    if not username in getAfsGroupMembers('system:xvm', 'athena.mit.edu'):
+        raise InvalidInput('username', username, 'Not an overlord.')
+    newstate = State(username, overlord=True)
+    newstate.environ = state.environ
+    return handler(username, newstate, path, fields)
+
+def throwError(_, __, ___, ____):
     """Throw an error, to test the error-tracing mechanisms."""
     raise RuntimeError("test of the emergency broadcast system")
 
@@ -589,6 +603,7 @@ mapping = dict(list=listVms,
                create=create,
                help=helpHandler,
                unauth=unauthFront,
+               overlord=overlord,
                errortest=throwError)
 
 def printHeaders(headers):
@@ -625,12 +640,15 @@ def show_error(op, username, fields, err, emsg, traceback):
 
 def getUser(environ):
     """Return the current user based on the SSL environment variables"""
-    email = environ.get('SSL_CLIENT_S_DN_Email', None)
-    if email is None:
-        return None
-    if not email.endswith('@MIT.EDU'):
-        return None
-    return email[:-8]
+    return environ.get('REMOTE_USER', None)
+
+def handler(username, state, path, fields):
+    operation, path = pathSplit(path)
+    if not operation:
+        operation = 'list'
+    print 'Starting', operation
+    fun = mapping.get(operation, badOperation)
+    return fun(username, state, path, fields)
 
 class App:
     def __init__(self, environ, start_response):
@@ -642,6 +660,7 @@ class App:
         self.state.environ = environ
 
     def __iter__(self):
+        start_time = time.time()
         sipb_xen_database.clear_cache()
         sys.stderr = StringIO()
         fields = cgi.FieldStorage(fp=self.environ['wsgi.input'], environ=self.environ)
@@ -652,17 +671,10 @@ class App:
             return
         if self.username is None:
             operation = 'unauth'
-        if operation.startswith('/'):
-            operation = operation[1:]
-        if not operation:
-            operation = 'list'
-        print 'Starting', operation
 
-        start_time = time.time()
-        fun = mapping.get(operation, badOperation)
         try:
             checkpoint.checkpoint('Before')
-            output = fun(self.username, self.state, fields)
+            output = handler(self.username, self.state, operation, fields)
             checkpoint.checkpoint('After')
 
             headers = dict(DEFAULT_HEADERS)