import hmac
import random
import sha
-import simplejson
import sys
import time
import urllib
import socket
import cherrypy
+from cherrypy import _cperror
from StringIO import StringIO
-def revertStandardError():
- """Move stderr to stdout, and return the contents of the old stderr."""
- errio = sys.stderr
- if not isinstance(errio, StringIO):
- return ''
- sys.stderr = sys.stdout
- errio.seek(0)
- return errio.read()
def printError():
"""Revert stderr to stdout, and print the contents of stderr"""
import atexit
atexit.register(printError)
-import templates
-from Cheetah.Template import Template
import validation
import cache_acls
from webcommon import State
from invirt.config import structs as config
from invirt.common import InvalidInput, CodeError
-from view import View
+from view import View, revertStandardError
+
+class InvirtUnauthWeb(View):
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/unauth.mako")
+ def index(self):
+ return {'simple': True}
class InvirtWeb(View):
def __init__(self):
super(self.__class__,self).__init__()
connect()
self._cp_config['tools.require_login.on'] = True
+ self._cp_config['tools.catch_stderr.on'] = True
self._cp_config['tools.mako.imports'] = ['from invirt.config import structs as config',
'from invirt import database']
+ self._cp_config['request.error_response'] = self.handle_error
+
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/invalid.mako")
+ def invalidInput(self):
+ """Print an error page when an InvalidInput exception occurs"""
+ err = cherrypy.request.prev.params["err"]
+ emsg = cherrypy.request.prev.params["emsg"]
+ d = dict(err_field=err.err_field,
+ err_value=str(err.err_value), stderr=emsg,
+ errorMessage=str(err))
+ return d
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/error.mako")
+ def error(self):
+ """Print an error page when an exception occurs"""
+ op = cherrypy.request.prev.path_info
+ username = cherrypy.request.login
+ err = cherrypy.request.prev.params["err"]
+ emsg = cherrypy.request.prev.params["emsg"]
+ traceback = cherrypy.request.prev.params["traceback"]
+ d = dict(op=op, user=username, fields=cherrypy.request.prev.params,
+ errorMessage=str(err), stderr=emsg, traceback=traceback)
+ error_raw = cherrypy.request.lookup.get_template("/error_raw.mako")
+ details = error_raw.render(**d)
+ exclude = config.web.errormail_exclude
+ if username not in exclude and '*' not in exclude:
+ send_error_mail('xvm error on %s for %s: %s' % (op, cherrypy.request.login, err),
+ details)
+ d['details'] = details
+ return d
+
+ def __getattr__(self, name):
+ if name in ("admin", "overlord"):
+ if not cherrypy.request.login in getAfsGroupMembers(config.adminacl, config.authz[0].cell):
+ raise InvalidInput('username', cherrypy.request.login,
+ 'Not in admin group %s.' % config.adminacl)
+ cherrypy.request.state = State(cherrypy.request.login, isadmin=True)
+ return self
+ else:
+ return super(InvirtWeb, self).__getattr__(name)
+
+ def handle_error(self):
+ err = sys.exc_info()[1]
+ if isinstance(err, InvalidInput):
+ cherrypy.request.params['err'] = err
+ cherrypy.request.params['emsg'] = revertStandardError()
+ raise cherrypy.InternalRedirect('/invalidInput')
+ if not cherrypy.request.prev or 'err' not in cherrypy.request.prev.params:
+ cherrypy.request.params['err'] = err
+ cherrypy.request.params['emsg'] = revertStandardError()
+ cherrypy.request.params['traceback'] = _cperror.format_exc()
+ raise cherrypy.InternalRedirect('/error')
+ # fall back to cherrypy default error page
+ cherrypy.HTTPError(500).set_response()
@cherrypy.expose
@cherrypy.tools.mako(filename="/list.mako")
- def list(self):
+ def list(self, result=None):
"""Handler for list requests."""
checkpoint.checkpoint('Getting list dict')
d = getListDict(cherrypy.request.login, cherrypy.request.state)
+ if result is not None:
+ d['result'] = result
checkpoint.checkpoint('Got list dict')
return d
index=list
""",
'Windows': """
<strong>Windows Vista:</strong> The Vista image is licensed for all MIT students and will automatically activate off the network; see <a href="/static/msca-email.txt">the licensing confirmation e-mail</a> for details. The installer requires 512 MiB RAM and at least 7.5 GiB disk space (15 GiB or more recommended).<br>
-<strong>Windows XP:</strong> This is the volume license CD image. You will need your own volume license key to complete the install. We do not have these available for the general MIT community; ask your department if they have one.
+<strong>Windows XP:</strong> This is the volume license CD image. You will need your own volume license key to complete the install. We do not have these available for the general MIT community; ask your department if they have one, or visit <a href="http://msca.mit.edu/">http://msca.mit.edu/</a> if you are staff/faculty to request one.
"""
}
mapping=help_mapping)
help._cp_config['tools.require_login.on'] = False
+ def parseCreate(self, fields):
+ kws = dict([(kw, fields[kw]) for kw in
+ 'name description owner memory disksize vmtype cdrom autoinstall'.split()
+ if fields[kw]])
+ validate = validation.Validate(cherrypy.request.login,
+ cherrypy.request.state,
+ strict=True, **kws)
+ return dict(contact=cherrypy.request.login, name=validate.name,
+ description=validate.description, memory=validate.memory,
+ disksize=validate.disksize, owner=validate.owner,
+ machine_type=getattr(validate, 'vmtype', Defaults.type),
+ cdrom=getattr(validate, 'cdrom', None),
+ autoinstall=getattr(validate, 'autoinstall', None))
+
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/list.mako")
+ @cherrypy.tools.require_POST()
+ def create(self, **fields):
+ """Handler for create requests."""
+ try:
+ parsed_fields = self.parseCreate(fields)
+ machine = controls.createVm(cherrypy.request.login,
+ cherrypy.request.state, **parsed_fields)
+ except InvalidInput, err:
+ pass
+ else:
+ err = None
+ cherrypy.request.state.clear() #Changed global state
+ d = getListDict(cherrypy.request.login, cherrypy.request.state)
+ d['err'] = err
+ if err:
+ for field, value in fields.items():
+ setattr(d['defaults'], field, value))
+ else:
+ d['new_machine'] = parsed_fields['name']
+ return d
+
@cherrypy.expose
@cherrypy.tools.mako(filename="/helloworld.mako")
def helloworld(self, **kwargs):
return {'request': cherrypy.request, 'kwargs': kwargs}
helloworld._cp_config['tools.require_login.on'] = False
-def pathSplit(path):
- if path.startswith('/'):
- path = path[1:]
- i = path.find('/')
- if i == -1:
- i = len(path)
- return path[:i], path[i:]
+ @cherrypy.expose
+ def errortest(self):
+ """Throw an error, to test the error-tracing mechanisms."""
+ print >>sys.stderr, "look ma, it's a stderr"
+ raise RuntimeError("test of the emergency broadcast system")
+
+ class MachineView(View):
+ # This is hairy. Fix when CherryPy 3.2 is out. (rename to
+ # _cp_dispatch, and parse the argument as a list instead of
+ # string
+
+ def __getattr__(self, name):
+ try:
+ cherrypy.request.params['machine_id'] = int(name)
+ return self
+ except ValueError:
+ return None
+
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/info.mako")
+ def info(self, machine_id):
+ """Handler for info on a single VM."""
+ machine = validation.Validate(cherrypy.request.login,
+ cherrypy.request.state,
+ machine_id=machine_id).machine
+ d = infoDict(cherrypy.request.login, cherrypy.request.state, machine)
+ checkpoint.checkpoint('Got infodict')
+ return d
+ index = info
+
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/info.mako")
+ @cherrypy.tools.require_POST()
+ def modify(self, machine_id, **fields):
+ """Handler for modifying attributes of a machine."""
+ try:
+ modify_dict = modifyDict(cherrypy.request.login,
+ cherrypy.request.state,
+ machine_id, fields)
+ except InvalidInput, err:
+ result = None
+ machine = validation.Validate(cherrypy.request.login,
+ cherrypy.request.state,
+ machine_id=machine_id).machine
+ else:
+ machine = modify_dict['machine']
+ result = 'Success!'
+ err = None
+ info_dict = infoDict(cherrypy.request.login,
+ cherrypy.request.state, machine)
+ info_dict['err'] = err
+ if err:
+ for field, value in fields.items():
+ setattr(info_dict['defaults'], field, value)
+ info_dict['result'] = result
+ return info_dict
+
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/vnc.mako")
+ def vnc(self, machine_id):
+ """VNC applet page.
+
+ Note that due to same-domain restrictions, the applet connects to
+ the webserver, which needs to forward those requests to the xen
+ server. The Xen server runs another proxy that (1) authenticates
+ and (2) finds the correct port for the VM.
+
+ You might want iptables like:
+
+ -t nat -A PREROUTING -s ! 18.181.0.60 -i eth1 -p tcp -m tcp \
+ --dport 10003 -j DNAT --to-destination 18.181.0.60:10003
+ -t nat -A POSTROUTING -d 18.181.0.60 -o eth1 -p tcp -m tcp \
+ --dport 10003 -j SNAT --to-source 18.187.7.142
+ -A FORWARD -d 18.181.0.60 -i eth1 -o eth1 -p tcp -m tcp \
+ --dport 10003 -j ACCEPT
+
+ Remember to enable iptables!
+ echo 1 > /proc/sys/net/ipv4/ip_forward
+ """
+ machine = validation.Validate(cherrypy.request.login,
+ cherrypy.request.state,
+ machine_id=machine_id).machine
+ token = controls.vnctoken(machine)
+ host = controls.listHost(machine)
+ if host:
+ port = 10003 + [h.hostname for h in config.hosts].index(host)
+ else:
+ port = 5900 # dummy
+
+ status = controls.statusInfo(machine)
+ has_vnc = hasVnc(status)
+
+ d = dict(on=status,
+ has_vnc=has_vnc,
+ machine=machine,
+ hostname=cherrypy.request.local.name,
+ port=port,
+ authtoken=token)
+ return d
+
+ @cherrypy.expose
+ @cherrypy.tools.mako(filename="/command.mako")
+ @cherrypy.tools.require_POST()
+ def command(self, command_name, machine_id, **kwargs):
+ """Handler for running commands like boot and delete on a VM."""
+ back = kwargs.get('back')
+ try:
+ d = controls.commandResult(cherrypy.request.login,
+ cherrypy.request.state,
+ command_name, machine_id, kwargs)
+ if d['command'] == 'Delete VM':
+ back = 'list'
+ except InvalidInput, err:
+ if not back:
+ raise
+ print >> sys.stderr, err
+ result = str(err)
+ else:
+ result = 'Success!'
+ if not back:
+ return d
+ if back == 'list':
+ cherrypy.request.state.clear() #Changed global state
+ raise cherrypy.InternalRedirect('/list?result=%s'
+ % urllib.quote(result))
+ elif back == 'info':
+ raise cherrypy.HTTPRedirect(cherrypy.request.base
+ + '/machine/%d/' % machine_id,
+ status=303)
+ else:
+ raise InvalidInput('back', back, 'Not a known back page.')
+
+ machine = MachineView()
class Checkpoint:
def __init__(self):
checkpoint = Checkpoint()
-def makeErrorPre(old, addition):
- if addition is None:
- return
- if old:
- return old[:-6] + '\n----\n' + str(addition) + '</pre>'
- else:
- return '<p>STDERR:</p><pre>' + str(addition) + '</pre>'
-
-Template.database = database
-Template.config = config
-Template.err = None
-
-class JsonDict:
- """Class to store a dictionary that will be converted to JSON"""
- def __init__(self, **kws):
- self.data = kws
- if 'err' in kws:
- err = kws['err']
- del kws['err']
- self.addError(err)
-
- def __str__(self):
- return simplejson.dumps(self.data)
-
- def addError(self, text):
- """Add stderr text to be displayed on the website."""
- self.data['err'] = \
- makeErrorPre(self.data.get('err'), text)
-
class Defaults:
"""Class to store default values for fields."""
memory = 256
autoinstall = ''
name = ''
description = ''
+ administrator = ''
type = 'linux-hvm'
def __init__(self, max_memory=None, max_disk=None, **kws):
for key in kws:
setattr(self, key, kws[key])
-
-
-DEFAULT_HEADERS = {'Content-Type': 'text/html'}
-
-def invalidInput(op, username, fields, err, emsg):
- """Print an error page when an InvalidInput exception occurs"""
- d = dict(op=op, user=username, err_field=err.err_field,
- err_value=str(err.err_value), stderr=emsg,
- errorMessage=str(err))
- return templates.invalid(searchList=[d])
-
def hasVnc(status):
"""Does the machine with a given status list support VNC?"""
if status is None:
return 'location' in d
return False
-def parseCreate(username, state, fields):
- 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=getattr(validate, 'vmtype', Defaults.type),
- cdrom=getattr(validate, 'cdrom', None),
- autoinstall=getattr(validate, 'autoinstall', None))
-
-def create(username, state, path, fields):
- """Handler for create requests."""
- try:
- parsed_fields = parseCreate(username, state, fields)
- machine = controls.createVm(username, state, **parsed_fields)
- except InvalidInput, err:
- pass
- else:
- err = None
- state.clear() #Changed global state
- d = getListDict(username, state)
- d['err'] = err
- if err:
- for field in fields.keys():
- setattr(d['defaults'], field, fields.getfirst(field))
- else:
- d['new_machine'] = parsed_fields['name']
- return templates.list(searchList=[d])
-
def getListDict(username, state):
"""Gets the list of local variables used by list.tmpl."""
checkpoint.checkpoint('Got my machines')
on = {}
has_vnc = {}
+ installing = {}
xmlist = state.xmlist
checkpoint.checkpoint('Got uptimes')
- can_clone = 'ice3' not in state.xmlist_raw
for m in machines:
if m not in xmlist:
has_vnc[m] = 'Off'
elif m.type.hvm:
has_vnc[m] = "WTF?"
else:
- has_vnc[m] = "ParaVM"+helppopup("ParaVM Console")
+ has_vnc[m] = "ParaVM"
+ if xmlist[m].get('autoinstall'):
+ installing[m] = True
+ else:
+ installing[m] = False
max_memory = validation.maxMemory(username, state)
max_disk = validation.maxDisk(username)
checkpoint.checkpoint('Got max mem/disk')
defaults=defaults,
machines=machines,
has_vnc=has_vnc,
- can_clone=can_clone)
+ installing=installing)
return d
-def vnc(username, state, path, fields):
- """VNC applet page.
-
- Note that due to same-domain restrictions, the applet connects to
- the webserver, which needs to forward those requests to the xen
- server. The Xen server runs another proxy that (1) authenticates
- and (2) finds the correct port for the VM.
-
- You might want iptables like:
-
- -t nat -A PREROUTING -s ! 18.181.0.60 -i eth1 -p tcp -m tcp \
- --dport 10003 -j DNAT --to-destination 18.181.0.60:10003
- -t nat -A POSTROUTING -d 18.181.0.60 -o eth1 -p tcp -m tcp \
- --dport 10003 -j SNAT --to-source 18.187.7.142
- -A FORWARD -d 18.181.0.60 -i eth1 -o eth1 -p tcp -m tcp \
- --dport 10003 -j ACCEPT
-
- Remember to enable iptables!
- echo 1 > /proc/sys/net/ipv4/ip_forward
- """
- machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine
-
- token = controls.vnctoken(machine)
- host = controls.listHost(machine)
- if host:
- port = 10003 + [h.hostname for h in config.hosts].index(host)
- else:
- port = 5900 # dummy
-
- status = controls.statusInfo(machine)
- has_vnc = hasVnc(status)
-
- d = dict(user=username,
- on=status,
- has_vnc=has_vnc,
- machine=machine,
- hostname=state.environ.get('SERVER_NAME', 'localhost'),
- port=port,
- authtoken=token)
- return templates.vnc(searchList=[d])
-
def getHostname(nic):
"""Find the hostname associated with a NIC.
data_dict['%s_size' % name] = "%0.1f GiB" % (disk.size / 1024.)
return disk_fields
-def command(username, state, path, fields):
- """Handler for running commands like boot and delete on a VM."""
- back = fields.getfirst('back')
- try:
- d = controls.commandResult(username, state, fields)
- if d['command'] == 'Delete VM':
- back = 'list'
- except InvalidInput, err:
- if not back:
- raise
- print >> sys.stderr, err
- result = err
- else:
- result = 'Success!'
- if not back:
- return templates.command(searchList=[d])
- if back == 'list':
- state.clear() #Changed global state
- d = getListDict(username, state)
- d['result'] = result
- return templates.list(searchList=[d])
- elif back == 'info':
- machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine
- return ({'Status': '303 See Other',
- 'Location': 'info?machine_id=%d' % machine.machine_id},
- "You shouldn't see this message.")
- else:
- raise InvalidInput('back', back, 'Not a known back page.')
-
-def modifyDict(username, state, fields):
+def modifyDict(username, state, machine_id, fields):
"""Modify a machine as specified by CGI arguments.
- Return a list of local variables for modify.tmpl.
+ Return a dict containing the machine that was modified.
"""
olddisk = {}
session.begin()
try:
- kws = dict([(kw, fields.getfirst(kw)) for kw in 'machine_id owner admin contact name description memory vmtype disksize'.split()])
+ kws = dict([(kw, fields[kw]) for kw in
+ 'owner admin contact name description memory vmtype disksize'.split()
+ if fields[kw]])
+ kws['machine_id'] = machine_id
validate = validation.Validate(username, state, **kws)
machine = validate.machine
oldname = machine.name
controls.resizeDisk(oldname, diskname, str(olddisk[diskname]))
if hasattr(validate, 'name'):
controls.renameMachine(machine, oldname, validate.name)
- return dict(user=username,
- command="modify",
- machine=machine)
-
-def modify(username, state, path, fields):
- """Handler for modifying attributes of a machine."""
- try:
- modify_dict = modifyDict(username, state, fields)
- except InvalidInput, err:
- result = None
- machine = validation.Validate(username, state, machine_id=fields.getfirst('machine_id')).machine
- else:
- machine = modify_dict['machine']
- result = 'Success!'
- err = None
- info_dict = infoDict(username, state, machine)
- info_dict['err'] = err
- if err:
- for field in fields.keys():
- setattr(info_dict['defaults'], field, fields.getfirst(field))
- info_dict['result'] = result
- return templates.info(searchList=[info_dict])
-
-def badOperation(u, s, p, e):
- """Function called when accessing an unknown URI."""
- return ({'Status': '404 Not Found'}, 'Invalid operation.')
+ return dict(machine=machine)
def infoDict(username, state, machine):
"""Get the variables used by info.tmpl."""
('memory', 'RAM'),
'DISK_INFO',
('state', 'state (xen format)'),
- ('cpu_weight', 'CPU weight'+helppopup('CPU Weight')),
]
fields = []
machine_info = {}
max_disk = validation.maxDisk(machine.owner, machine)
defaults = Defaults()
for name in 'machine_id name description administrator owner memory contact'.split():
- setattr(defaults, name, getattr(machine, name))
+ if getattr(machine, name):
+ setattr(defaults, name, getattr(machine, name))
defaults.type = machine.type.type_id
defaults.disk = "%0.2f" % (machine.disks[0].size/1024.)
checkpoint.checkpoint('Got defaults')
ram=machine.memory,
max_mem=max_mem,
max_disk=max_disk,
- owner_help=helppopup("Owner"),
fields = fields)
return d
-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, _3, fields):
- """Information for unauth'd users."""
- return templates.unauth(searchList=[{'simple' : True,
- 'hostname' : socket.getfqdn()}])
-
-def admin(username, state, path, fields):
- if path == '':
- return ({'Status': '303 See Other',
- 'Location': 'admin/'},
- "You shouldn't see this message.")
- if not username in getAfsGroupMembers(config.adminacl, 'athena.mit.edu'):
- raise InvalidInput('username', username,
- 'Not in admin group %s.' % config.adminacl)
- newstate = State(username, isadmin=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")
-
-mapping = dict(vnc=vnc,
- command=command,
- modify=modify,
- info=info,
- create=create,
- unauth=unauthFront,
- admin=admin,
- overlord=admin,
- errortest=throwError)
-
-def printHeaders(headers):
- """Print a dictionary as HTTP headers."""
- for key, value in headers.iteritems():
- print '%s: %s' % (key, value)
- print
-
def send_error_mail(subject, body):
import subprocess
p.stdin.close()
p.wait()
-def show_error(op, username, fields, err, emsg, traceback):
- """Print an error page when an exception occurs"""
- d = dict(op=op, user=username, fields=fields,
- errorMessage=str(err), stderr=emsg, traceback=traceback)
- details = templates.error_raw(searchList=[d])
- exclude = config.web.errormail_exclude
- if username not in exclude and '*' not in exclude:
- send_error_mail('xvm error on %s for %s: %s' % (op, username, err),
- details)
- d['details'] = details
- return templates.error(searchList=[d])
-
-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):
- self.environ = environ
- self.start = start_response
-
- self.username = getUser(environ)
- self.state = State(self.username)
- self.state.environ = environ
-
- random.seed() #sigh
-
- def __iter__(self):
- start_time = time.time()
- database.clear_cache()
- sys.stderr = StringIO()
- fields = cgi.FieldStorage(fp=self.environ['wsgi.input'], environ=self.environ)
- operation = self.environ.get('PATH_INFO', '')
- if not operation:
- self.start("301 Moved Permanently", [('Location', './')])
- return
- if self.username is None:
- operation = 'unauth'
-
- try:
- checkpoint.checkpoint('Before')
- output = handler(self.username, self.state, operation, fields)
- checkpoint.checkpoint('After')
-
- headers = dict(DEFAULT_HEADERS)
- if isinstance(output, tuple):
- new_headers, output = output
- headers.update(new_headers)
- e = revertStandardError()
- if e:
- if hasattr(output, 'addError'):
- output.addError(e)
- else:
- # This only happens on redirects, so it'd be a pain to get
- # the message to the user. Maybe in the response is useful.
- output = output + '\n\nstderr:\n' + e
- output_string = str(output)
- checkpoint.checkpoint('output as a string')
- except Exception, err:
- if not fields.has_key('js'):
- if isinstance(err, InvalidInput):
- self.start('200 OK', [('Content-Type', 'text/html')])
- e = revertStandardError()
- yield str(invalidInput(operation, self.username, fields,
- err, e))
- return
- import traceback
- self.start('500 Internal Server Error',
- [('Content-Type', 'text/html')])
- e = revertStandardError()
- s = show_error(operation, self.username, fields,
- err, e, traceback.format_exc())
- yield str(s)
- return
- status = headers.setdefault('Status', '200 OK')
- del headers['Status']
- self.start(status, headers.items())
- yield output_string
- if fields.has_key('timedebug'):
- yield '<pre>%s</pre>' % cgi.escape(str(checkpoint))
-
-def constructor():
- connect()
- return App
-
-def main():
- from flup.server.fcgi_fork import WSGIServer
- WSGIServer(constructor()).run()
-
-if __name__ == '__main__':
- main()
+random.seed()
projects / invirt/packages/invirt-web.git / blobdiff