[113] | 1 | #!/usr/bin/python |
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[205] | 2 | """Main CGI script for web interface""" |
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[113] | 3 | |
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[205] | 4 | import base64 |
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| 5 | import cPickle |
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[113] | 6 | import cgi |
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[205] | 7 | import datetime |
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| 8 | import hmac |
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[113] | 9 | import os |
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[205] | 10 | import sha |
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| 11 | import simplejson |
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| 12 | import sys |
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[118] | 13 | import time |
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[205] | 14 | from StringIO import StringIO |
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[113] | 15 | |
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[205] | 16 | |
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| 17 | def revertStandardError(): |
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| 18 | """Move stderr to stdout, and return the contents of the old stderr.""" |
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| 19 | errio = sys.stderr |
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| 20 | if not isinstance(errio, StringIO): |
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| 21 | return None |
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| 22 | sys.stderr = sys.stdout |
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| 23 | errio.seek(0) |
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| 24 | return errio.read() |
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| 25 | |
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| 26 | def printError(): |
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| 27 | """Revert stderr to stdout, and print the contents of stderr""" |
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| 28 | if isinstance(sys.stderr, StringIO): |
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| 29 | print revertStandardError() |
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| 30 | |
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| 31 | if __name__ == '__main__': |
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| 32 | import atexit |
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| 33 | atexit.register(printError) |
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| 34 | sys.stderr = StringIO() |
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| 35 | |
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[113] | 36 | sys.path.append('/home/ecprice/.local/lib/python2.5/site-packages') |
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| 37 | |
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| 38 | from Cheetah.Template import Template |
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[209] | 39 | from sipb_xen_database import Machine, CDROM, ctx, connect |
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| 40 | import validation |
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| 41 | from webcommon import InvalidInput, CodeError, g |
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| 42 | import controls |
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[113] | 43 | |
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[205] | 44 | def helppopup(subj): |
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| 45 | """Return HTML code for a (?) link to a specified help topic""" |
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| 46 | return ('<span class="helplink"><a href="help?subject=' + subj + |
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| 47 | '&simple=true" target="_blank" ' + |
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| 48 | 'onclick="return helppopup(\'' + subj + '\')">(?)</a></span>') |
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| 49 | |
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| 50 | class User: |
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| 51 | """User class (sort of useless, I admit)""" |
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| 52 | def __init__(self, username, email): |
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| 53 | self.username = username |
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| 54 | self.email = email |
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[139] | 55 | |
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[205] | 56 | def makeErrorPre(old, addition): |
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| 57 | if addition is None: |
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| 58 | return |
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| 59 | if old: |
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| 60 | return old[:-6] + '\n----\n' + str(addition) + '</pre>' |
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| 61 | else: |
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| 62 | return '<p>STDERR:</p><pre>' + str(addition) + '</pre>' |
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[139] | 63 | |
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[205] | 64 | Template.helppopup = staticmethod(helppopup) |
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| 65 | Template.err = None |
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[139] | 66 | |
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[205] | 67 | class JsonDict: |
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| 68 | """Class to store a dictionary that will be converted to JSON""" |
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| 69 | def __init__(self, **kws): |
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| 70 | self.data = kws |
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| 71 | if 'err' in kws: |
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| 72 | err = kws['err'] |
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| 73 | del kws['err'] |
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| 74 | self.addError(err) |
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[139] | 75 | |
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[205] | 76 | def __str__(self): |
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| 77 | return simplejson.dumps(self.data) |
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| 78 | |
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| 79 | def addError(self, text): |
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| 80 | """Add stderr text to be displayed on the website.""" |
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| 81 | self.data['err'] = \ |
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| 82 | makeErrorPre(self.data.get('err'), text) |
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| 83 | |
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| 84 | class Defaults: |
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| 85 | """Class to store default values for fields.""" |
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| 86 | memory = 256 |
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| 87 | disk = 4.0 |
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| 88 | cdrom = '' |
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| 89 | name = '' |
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| 90 | vmtype = 'hvm' |
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| 91 | def __init__(self, max_memory=None, max_disk=None, **kws): |
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| 92 | if max_memory is not None: |
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| 93 | self.memory = min(self.memory, max_memory) |
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| 94 | if max_disk is not None: |
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| 95 | self.max_disk = min(self.disk, max_disk) |
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| 96 | for key in kws: |
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| 97 | setattr(self, key, kws[key]) |
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| 98 | |
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| 99 | |
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| 100 | |
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[209] | 101 | DEFAULT_HEADERS = {'Content-Type': 'text/html'} |
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[205] | 102 | |
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[153] | 103 | def error(op, user, fields, err, emsg): |
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[145] | 104 | """Print an error page when a CodeError occurs""" |
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[153] | 105 | d = dict(op=op, user=user, errorMessage=str(err), |
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| 106 | stderr=emsg) |
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[209] | 107 | return Template(file='error.tmpl', searchList=[d]) |
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[113] | 108 | |
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[153] | 109 | def invalidInput(op, user, fields, err, emsg): |
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| 110 | """Print an error page when an InvalidInput exception occurs""" |
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| 111 | d = dict(op=op, user=user, err_field=err.err_field, |
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| 112 | err_value=str(err.err_value), stderr=emsg, |
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| 113 | errorMessage=str(err)) |
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[209] | 114 | return Template(file='invalid.tmpl', searchList=[d]) |
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[153] | 115 | |
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[119] | 116 | def hasVnc(status): |
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[133] | 117 | """Does the machine with a given status list support VNC?""" |
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[119] | 118 | if status is None: |
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| 119 | return False |
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| 120 | for l in status: |
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| 121 | if l[0] == 'device' and l[1][0] == 'vfb': |
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| 122 | d = dict(l[1][1:]) |
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| 123 | return 'location' in d |
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| 124 | return False |
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| 125 | |
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[205] | 126 | def parseCreate(user, fields): |
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[134] | 127 | name = fields.getfirst('name') |
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[209] | 128 | if not validation.validMachineName(name): |
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[205] | 129 | raise InvalidInput('name', name, 'You must provide a machine name.') |
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[162] | 130 | name = name.lower() |
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[134] | 131 | |
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| 132 | if Machine.get_by(name=name): |
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[153] | 133 | raise InvalidInput('name', name, |
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[205] | 134 | "Name already exists.") |
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[113] | 135 | |
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[134] | 136 | memory = fields.getfirst('memory') |
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[209] | 137 | memory = validation.validMemory(user, memory, on=True) |
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[134] | 138 | |
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| 139 | disk = fields.getfirst('disk') |
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[209] | 140 | disk = validation.validDisk(user, disk) |
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[134] | 141 | |
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[113] | 142 | vm_type = fields.getfirst('vmtype') |
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| 143 | if vm_type not in ('hvm', 'paravm'): |
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[145] | 144 | raise CodeError("Invalid vm type '%s'" % vm_type) |
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[113] | 145 | is_hvm = (vm_type == 'hvm') |
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| 146 | |
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| 147 | cdrom = fields.getfirst('cdrom') |
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| 148 | if cdrom is not None and not CDROM.get(cdrom): |
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[205] | 149 | raise CodeError("Invalid cdrom type '%s'" % cdrom) |
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| 150 | return dict(user=user, name=name, memory=memory, disk=disk, |
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| 151 | is_hvm=is_hvm, cdrom=cdrom) |
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[113] | 152 | |
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[205] | 153 | def create(user, fields): |
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| 154 | """Handler for create requests.""" |
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| 155 | try: |
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| 156 | parsed_fields = parseCreate(user, fields) |
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[209] | 157 | machine = controls.createVm(**parsed_fields) |
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[205] | 158 | except InvalidInput, err: |
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[207] | 159 | pass |
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[205] | 160 | else: |
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| 161 | err = None |
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| 162 | g.clear() #Changed global state |
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| 163 | d = getListDict(user) |
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| 164 | d['err'] = err |
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| 165 | if err: |
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| 166 | for field in fields.keys(): |
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| 167 | setattr(d['defaults'], field, fields.getfirst(field)) |
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| 168 | else: |
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| 169 | d['new_machine'] = parsed_fields['name'] |
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[207] | 170 | return Template(file='list.tmpl', searchList=[d]) |
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[205] | 171 | |
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| 172 | |
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| 173 | def getListDict(user): |
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[209] | 174 | machines = [m for m in Machine.select() |
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| 175 | if validation.haveAccess(user, m)] |
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[133] | 176 | on = {} |
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[119] | 177 | has_vnc = {} |
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[152] | 178 | on = g.uptimes |
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[136] | 179 | for m in machines: |
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[205] | 180 | m.uptime = g.uptimes.get(m) |
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[144] | 181 | if not on[m]: |
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| 182 | has_vnc[m] = 'Off' |
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[138] | 183 | elif m.type.hvm: |
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[144] | 184 | has_vnc[m] = True |
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[136] | 185 | else: |
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[144] | 186 | has_vnc[m] = "ParaVM"+helppopup("paravm_console") |
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[209] | 187 | max_memory = validation.maxMemory(user) |
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| 188 | max_disk = validation.maxDisk(user) |
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[205] | 189 | defaults = Defaults(max_memory=max_memory, |
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| 190 | max_disk=max_disk, |
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| 191 | cdrom='gutsy-i386') |
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[113] | 192 | d = dict(user=user, |
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[209] | 193 | cant_add_vm=validation.cantAddVm(user), |
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[205] | 194 | max_memory=max_memory, |
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[144] | 195 | max_disk=max_disk, |
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[205] | 196 | defaults=defaults, |
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[113] | 197 | machines=machines, |
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[119] | 198 | has_vnc=has_vnc, |
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[157] | 199 | uptimes=g.uptimes, |
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[113] | 200 | cdroms=CDROM.select()) |
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[205] | 201 | return d |
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[113] | 202 | |
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[205] | 203 | def listVms(user, fields): |
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| 204 | """Handler for list requests.""" |
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| 205 | d = getListDict(user) |
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[207] | 206 | return Template(file='list.tmpl', searchList=[d]) |
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[205] | 207 | |
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[113] | 208 | def vnc(user, fields): |
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[119] | 209 | """VNC applet page. |
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| 210 | |
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| 211 | Note that due to same-domain restrictions, the applet connects to |
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| 212 | the webserver, which needs to forward those requests to the xen |
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| 213 | server. The Xen server runs another proxy that (1) authenticates |
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| 214 | and (2) finds the correct port for the VM. |
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| 215 | |
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| 216 | You might want iptables like: |
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| 217 | |
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[205] | 218 | -t nat -A PREROUTING -s ! 18.181.0.60 -i eth1 -p tcp -m tcp \ |
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| 219 | --dport 10003 -j DNAT --to-destination 18.181.0.60:10003 |
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| 220 | -t nat -A POSTROUTING -d 18.181.0.60 -o eth1 -p tcp -m tcp \ |
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| 221 | --dport 10003 -j SNAT --to-source 18.187.7.142 |
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| 222 | -A FORWARD -d 18.181.0.60 -i eth1 -o eth1 -p tcp -m tcp \ |
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| 223 | --dport 10003 -j ACCEPT |
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[145] | 224 | |
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| 225 | Remember to enable iptables! |
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| 226 | echo 1 > /proc/sys/net/ipv4/ip_forward |
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[119] | 227 | """ |
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[209] | 228 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[118] | 229 | |
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| 230 | TOKEN_KEY = "0M6W0U1IXexThi5idy8mnkqPKEq1LtEnlK/pZSn0cDrN" |
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| 231 | |
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| 232 | data = {} |
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[133] | 233 | data["user"] = user.username |
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[205] | 234 | data["machine"] = machine.name |
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| 235 | data["expires"] = time.time()+(5*60) |
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| 236 | pickled_data = cPickle.dumps(data) |
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[118] | 237 | m = hmac.new(TOKEN_KEY, digestmod=sha) |
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[205] | 238 | m.update(pickled_data) |
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| 239 | token = {'data': pickled_data, 'digest': m.digest()} |
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[118] | 240 | token = cPickle.dumps(token) |
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| 241 | token = base64.urlsafe_b64encode(token) |
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| 242 | |
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[209] | 243 | status = controls.statusInfo(machine) |
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[152] | 244 | has_vnc = hasVnc(status) |
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| 245 | |
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[113] | 246 | d = dict(user=user, |
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[152] | 247 | on=status, |
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| 248 | has_vnc=has_vnc, |
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[113] | 249 | machine=machine, |
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[119] | 250 | hostname=os.environ.get('SERVER_NAME', 'localhost'), |
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[113] | 251 | authtoken=token) |
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[205] | 252 | return Template(file='vnc.tmpl', searchList=[d]) |
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[113] | 253 | |
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[133] | 254 | def getNicInfo(data_dict, machine): |
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[145] | 255 | """Helper function for info, get data on nics for a machine. |
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| 256 | |
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| 257 | Modifies data_dict to include the relevant data, and returns a list |
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| 258 | of (key, name) pairs to display "name: data_dict[key]" to the user. |
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| 259 | """ |
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[133] | 260 | data_dict['num_nics'] = len(machine.nics) |
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[227] | 261 | nic_fields_template = [('nic%s_hostname', 'NIC %s Hostname'), |
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[133] | 262 | ('nic%s_mac', 'NIC %s MAC Addr'), |
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| 263 | ('nic%s_ip', 'NIC %s IP'), |
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| 264 | ] |
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| 265 | nic_fields = [] |
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| 266 | for i in range(len(machine.nics)): |
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| 267 | nic_fields.extend([(x % i, y % i) for x, y in nic_fields_template]) |
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[227] | 268 | if not i: |
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| 269 | data_dict['nic%s_hostname' % i] = (machine.name + |
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| 270 | '.servers.csail.mit.edu') |
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[133] | 271 | data_dict['nic%s_mac' % i] = machine.nics[i].mac_addr |
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| 272 | data_dict['nic%s_ip' % i] = machine.nics[i].ip |
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| 273 | if len(machine.nics) == 1: |
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| 274 | nic_fields = [(x, y.replace('NIC 0 ', '')) for x, y in nic_fields] |
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| 275 | return nic_fields |
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| 276 | |
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| 277 | def getDiskInfo(data_dict, machine): |
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[145] | 278 | """Helper function for info, get data on disks for a machine. |
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| 279 | |
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| 280 | Modifies data_dict to include the relevant data, and returns a list |
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| 281 | of (key, name) pairs to display "name: data_dict[key]" to the user. |
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| 282 | """ |
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[133] | 283 | data_dict['num_disks'] = len(machine.disks) |
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| 284 | disk_fields_template = [('%s_size', '%s size')] |
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| 285 | disk_fields = [] |
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| 286 | for disk in machine.disks: |
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| 287 | name = disk.guest_device_name |
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[205] | 288 | disk_fields.extend([(x % name, y % name) for x, y in |
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| 289 | disk_fields_template]) |
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[211] | 290 | data_dict['%s_size' % name] = "%0.1f GiB" % (disk.size / 1024.) |
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[133] | 291 | return disk_fields |
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| 292 | |
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[205] | 293 | def command(user, fields): |
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| 294 | """Handler for running commands like boot and delete on a VM.""" |
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[207] | 295 | back = fields.getfirst('back') |
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[205] | 296 | try: |
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[209] | 297 | d = controls.commandResult(user, fields) |
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[207] | 298 | if d['command'] == 'Delete VM': |
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| 299 | back = 'list' |
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[205] | 300 | except InvalidInput, err: |
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[207] | 301 | if not back: |
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[205] | 302 | raise |
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[207] | 303 | print >> sys.stderr, err |
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[205] | 304 | result = None |
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| 305 | else: |
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| 306 | result = 'Success!' |
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[207] | 307 | if not back: |
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[205] | 308 | return Template(file='command.tmpl', searchList=[d]) |
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[207] | 309 | if back == 'list': |
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[205] | 310 | g.clear() #Changed global state |
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| 311 | d = getListDict(user) |
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[207] | 312 | d['result'] = result |
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| 313 | return Template(file='list.tmpl', searchList=[d]) |
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| 314 | elif back == 'info': |
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[209] | 315 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[205] | 316 | d = infoDict(user, machine) |
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[207] | 317 | d['result'] = result |
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| 318 | return Template(file='info.tmpl', searchList=[d]) |
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[205] | 319 | else: |
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[207] | 320 | raise InvalidInput('back', back, 'Not a known back page.') |
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[205] | 321 | |
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| 322 | def modifyDict(user, fields): |
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[177] | 323 | olddisk = {} |
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[161] | 324 | transaction = ctx.current.create_transaction() |
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| 325 | try: |
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[209] | 326 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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| 327 | owner = validation.testOwner(user, fields.getfirst('owner'), machine) |
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| 328 | admin = validation.testAdmin(user, fields.getfirst('administrator'), |
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| 329 | machine) |
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| 330 | contact = validation.testContact(user, fields.getfirst('contact'), |
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| 331 | machine) |
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| 332 | name = validation.testName(user, fields.getfirst('name'), machine) |
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[161] | 333 | oldname = machine.name |
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[205] | 334 | command = "modify" |
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[153] | 335 | |
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[161] | 336 | memory = fields.getfirst('memory') |
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| 337 | if memory is not None: |
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[209] | 338 | memory = validation.validMemory(user, memory, machine, on=False) |
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[161] | 339 | machine.memory = memory |
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[177] | 340 | |
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[209] | 341 | disksize = validation.testDisk(user, fields.getfirst('disk')) |
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[161] | 342 | if disksize is not None: |
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[209] | 343 | disksize = validation.validDisk(user, disksize, machine) |
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[177] | 344 | disk = machine.disks[0] |
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| 345 | if disk.size != disksize: |
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| 346 | olddisk[disk.guest_device_name] = disksize |
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| 347 | disk.size = disksize |
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| 348 | ctx.current.save(disk) |
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[161] | 349 | |
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[187] | 350 | if owner is not None: |
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[161] | 351 | machine.owner = owner |
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[187] | 352 | if name is not None: |
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[161] | 353 | machine.name = name |
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[187] | 354 | if admin is not None: |
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| 355 | machine.administrator = admin |
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| 356 | if contact is not None: |
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| 357 | machine.contact = contact |
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[161] | 358 | |
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| 359 | ctx.current.save(machine) |
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| 360 | transaction.commit() |
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| 361 | except: |
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| 362 | transaction.rollback() |
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[163] | 363 | raise |
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[177] | 364 | for diskname in olddisk: |
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[209] | 365 | controls.resizeDisk(oldname, diskname, str(olddisk[diskname])) |
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[187] | 366 | if name is not None: |
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[209] | 367 | controls.renameMachine(machine, oldname, name) |
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[205] | 368 | return dict(user=user, |
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| 369 | command=command, |
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| 370 | machine=machine) |
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| 371 | |
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| 372 | def modify(user, fields): |
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| 373 | """Handler for modifying attributes of a machine.""" |
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| 374 | try: |
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| 375 | modify_dict = modifyDict(user, fields) |
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| 376 | except InvalidInput, err: |
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[207] | 377 | result = None |
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[209] | 378 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[205] | 379 | else: |
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| 380 | machine = modify_dict['machine'] |
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[209] | 381 | result = 'Success!' |
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[205] | 382 | err = None |
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| 383 | info_dict = infoDict(user, machine) |
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| 384 | info_dict['err'] = err |
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| 385 | if err: |
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| 386 | for field in fields.keys(): |
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| 387 | setattr(info_dict['defaults'], field, fields.getfirst(field)) |
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[207] | 388 | info_dict['result'] = result |
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| 389 | return Template(file='info.tmpl', searchList=[info_dict]) |
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[205] | 390 | |
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[161] | 391 | |
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[205] | 392 | def helpHandler(user, fields): |
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[145] | 393 | """Handler for help messages.""" |
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[139] | 394 | simple = fields.getfirst('simple') |
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| 395 | subjects = fields.getlist('subject') |
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| 396 | |
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[205] | 397 | help_mapping = dict(paravm_console=""" |
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[139] | 398 | ParaVM machines do not support console access over VNC. To access |
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| 399 | these machines, you either need to boot with a liveCD and ssh in or |
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| 400 | hope that the sipb-xen maintainers add support for serial consoles.""", |
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[205] | 401 | hvm_paravm=""" |
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[139] | 402 | HVM machines use the virtualization features of the processor, while |
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| 403 | ParaVM machines use Xen's emulation of virtualization features. You |
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| 404 | want an HVM virtualized machine.""", |
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[205] | 405 | cpu_weight=""" |
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| 406 | Don't ask us! We're as mystified as you are.""", |
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| 407 | owner=""" |
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| 408 | The owner field is used to determine <a |
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| 409 | href="help?subject=quotas">quotas</a>. It must be the name of a |
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| 410 | locker that you are an AFS administrator of. In particular, you or an |
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| 411 | AFS group you are a member of must have AFS rlidwka bits on the |
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[187] | 412 | locker. You can check see who administers the LOCKER locker using the |
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[205] | 413 | command 'fs la /mit/LOCKER' on Athena.) See also <a |
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| 414 | href="help?subject=administrator">administrator</a>.""", |
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| 415 | administrator=""" |
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| 416 | The administrator field determines who can access the console and |
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| 417 | power on and off the machine. This can be either a user or a moira |
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| 418 | group.""", |
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| 419 | quotas=""" |
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| 420 | Quotas are determined on a per-locker basis. Each quota may have a |
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| 421 | maximum of 512 megabytes of active ram, 50 gigabytes of disk, and 4 |
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| 422 | active machines.""" |
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[187] | 423 | ) |
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[139] | 424 | |
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[187] | 425 | if not subjects: |
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[205] | 426 | subjects = sorted(help_mapping.keys()) |
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[187] | 427 | |
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[139] | 428 | d = dict(user=user, |
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| 429 | simple=simple, |
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| 430 | subjects=subjects, |
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[205] | 431 | mapping=help_mapping) |
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[139] | 432 | |
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[205] | 433 | return Template(file="help.tmpl", searchList=[d]) |
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[139] | 434 | |
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[133] | 435 | |
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[205] | 436 | def badOperation(u, e): |
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| 437 | raise CodeError("Unknown operation") |
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| 438 | |
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| 439 | def infoDict(user, machine): |
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[209] | 440 | status = controls.statusInfo(machine) |
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[133] | 441 | has_vnc = hasVnc(status) |
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| 442 | if status is None: |
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| 443 | main_status = dict(name=machine.name, |
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| 444 | memory=str(machine.memory)) |
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[205] | 445 | uptime = None |
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| 446 | cputime = None |
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[133] | 447 | else: |
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| 448 | main_status = dict(status[1:]) |
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[167] | 449 | start_time = float(main_status.get('start_time', 0)) |
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| 450 | uptime = datetime.timedelta(seconds=int(time.time()-start_time)) |
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| 451 | cpu_time_float = float(main_status.get('cpu_time', 0)) |
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| 452 | cputime = datetime.timedelta(seconds=int(cpu_time_float)) |
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[133] | 453 | display_fields = """name uptime memory state cpu_weight on_reboot |
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| 454 | on_poweroff on_crash on_xend_start on_xend_stop bootloader""".split() |
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| 455 | display_fields = [('name', 'Name'), |
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| 456 | ('owner', 'Owner'), |
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[187] | 457 | ('administrator', 'Administrator'), |
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[133] | 458 | ('contact', 'Contact'), |
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[136] | 459 | ('type', 'Type'), |
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[133] | 460 | 'NIC_INFO', |
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| 461 | ('uptime', 'uptime'), |
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| 462 | ('cputime', 'CPU usage'), |
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| 463 | ('memory', 'RAM'), |
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| 464 | 'DISK_INFO', |
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| 465 | ('state', 'state (xen format)'), |
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[139] | 466 | ('cpu_weight', 'CPU weight'+helppopup('cpu_weight')), |
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[133] | 467 | ('on_reboot', 'Action on VM reboot'), |
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| 468 | ('on_poweroff', 'Action on VM poweroff'), |
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| 469 | ('on_crash', 'Action on VM crash'), |
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| 470 | ('on_xend_start', 'Action on Xen start'), |
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| 471 | ('on_xend_stop', 'Action on Xen stop'), |
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| 472 | ('bootloader', 'Bootloader options'), |
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| 473 | ] |
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| 474 | fields = [] |
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| 475 | machine_info = {} |
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[147] | 476 | machine_info['name'] = machine.name |
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[136] | 477 | machine_info['type'] = machine.type.hvm and 'HVM' or 'ParaVM' |
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[133] | 478 | machine_info['owner'] = machine.owner |
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[187] | 479 | machine_info['administrator'] = machine.administrator |
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[133] | 480 | machine_info['contact'] = machine.contact |
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| 481 | |
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| 482 | nic_fields = getNicInfo(machine_info, machine) |
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| 483 | nic_point = display_fields.index('NIC_INFO') |
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[205] | 484 | display_fields = (display_fields[:nic_point] + nic_fields + |
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| 485 | display_fields[nic_point+1:]) |
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[133] | 486 | |
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| 487 | disk_fields = getDiskInfo(machine_info, machine) |
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| 488 | disk_point = display_fields.index('DISK_INFO') |
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[205] | 489 | display_fields = (display_fields[:disk_point] + disk_fields + |
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| 490 | display_fields[disk_point+1:]) |
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[133] | 491 | |
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[211] | 492 | main_status['memory'] += ' MiB' |
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[133] | 493 | for field, disp in display_fields: |
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[167] | 494 | if field in ('uptime', 'cputime') and locals()[field] is not None: |
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[133] | 495 | fields.append((disp, locals()[field])) |
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[147] | 496 | elif field in machine_info: |
---|
| 497 | fields.append((disp, machine_info[field])) |
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[133] | 498 | elif field in main_status: |
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| 499 | fields.append((disp, main_status[field])) |
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| 500 | else: |
---|
| 501 | pass |
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| 502 | #fields.append((disp, None)) |
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[209] | 503 | max_mem = validation.maxMemory(user, machine) |
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| 504 | max_disk = validation.maxDisk(user, machine) |
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| 505 | defaults = Defaults() |
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[205] | 506 | for name in 'machine_id name administrator owner memory contact'.split(): |
---|
| 507 | setattr(defaults, name, getattr(machine, name)) |
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| 508 | defaults.disk = "%0.2f" % (machine.disks[0].size/1024.) |
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[113] | 509 | d = dict(user=user, |
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[133] | 510 | cdroms=CDROM.select(), |
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| 511 | on=status is not None, |
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| 512 | machine=machine, |
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[205] | 513 | defaults=defaults, |
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[133] | 514 | has_vnc=has_vnc, |
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| 515 | uptime=str(uptime), |
---|
| 516 | ram=machine.memory, |
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[144] | 517 | max_mem=max_mem, |
---|
| 518 | max_disk=max_disk, |
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[166] | 519 | owner_help=helppopup("owner"), |
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[133] | 520 | fields = fields) |
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[205] | 521 | return d |
---|
[113] | 522 | |
---|
[205] | 523 | def info(user, fields): |
---|
| 524 | """Handler for info on a single VM.""" |
---|
[209] | 525 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[205] | 526 | d = infoDict(user, machine) |
---|
| 527 | return Template(file='info.tmpl', searchList=[d]) |
---|
| 528 | |
---|
[113] | 529 | mapping = dict(list=listVms, |
---|
| 530 | vnc=vnc, |
---|
[133] | 531 | command=command, |
---|
| 532 | modify=modify, |
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[113] | 533 | info=info, |
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[139] | 534 | create=create, |
---|
[205] | 535 | help=helpHandler) |
---|
[113] | 536 | |
---|
[205] | 537 | def printHeaders(headers): |
---|
| 538 | for key, value in headers.iteritems(): |
---|
| 539 | print '%s: %s' % (key, value) |
---|
| 540 | print |
---|
| 541 | |
---|
| 542 | |
---|
| 543 | def getUser(): |
---|
| 544 | """Return the current user based on the SSL environment variables""" |
---|
| 545 | if 'SSL_CLIENT_S_DN_Email' in os.environ: |
---|
| 546 | username = os.environ['SSL_CLIENT_S_DN_Email'].split("@")[0] |
---|
| 547 | return User(username, os.environ['SSL_CLIENT_S_DN_Email']) |
---|
| 548 | else: |
---|
| 549 | return User('moo', 'nobody') |
---|
| 550 | |
---|
[209] | 551 | def main(operation, user, fields): |
---|
[153] | 552 | fun = mapping.get(operation, badOperation) |
---|
[205] | 553 | |
---|
| 554 | if fun not in (helpHandler, ): |
---|
| 555 | connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen') |
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[119] | 556 | try: |
---|
[153] | 557 | output = fun(u, fields) |
---|
[205] | 558 | |
---|
[209] | 559 | headers = dict(DEFAULT_HEADERS) |
---|
[205] | 560 | if isinstance(output, tuple): |
---|
| 561 | new_headers, output = output |
---|
| 562 | headers.update(new_headers) |
---|
| 563 | |
---|
| 564 | e = revertStandardError() |
---|
[153] | 565 | if e: |
---|
[205] | 566 | output.addError(e) |
---|
| 567 | printHeaders(headers) |
---|
[153] | 568 | print output |
---|
[205] | 569 | except Exception, err: |
---|
| 570 | if not fields.has_key('js'): |
---|
| 571 | if isinstance(err, CodeError): |
---|
| 572 | print 'Content-Type: text/html\n' |
---|
| 573 | e = revertStandardError() |
---|
| 574 | print error(operation, u, fields, err, e) |
---|
| 575 | sys.exit(1) |
---|
| 576 | if isinstance(err, InvalidInput): |
---|
| 577 | print 'Content-Type: text/html\n' |
---|
| 578 | e = revertStandardError() |
---|
| 579 | print invalidInput(operation, u, fields, err, e) |
---|
| 580 | sys.exit(1) |
---|
[153] | 581 | print 'Content-Type: text/plain\n' |
---|
[205] | 582 | print 'Uh-oh! We experienced an error.' |
---|
| 583 | print 'Please email sipb-xen@mit.edu with the contents of this page.' |
---|
| 584 | print '----' |
---|
| 585 | e = revertStandardError() |
---|
[153] | 586 | print e |
---|
| 587 | print '----' |
---|
| 588 | raise |
---|
[209] | 589 | |
---|
| 590 | if __name__ == '__main__': |
---|
| 591 | start_time = time.time() |
---|
| 592 | fields = cgi.FieldStorage() |
---|
| 593 | u = getUser() |
---|
| 594 | g.user = u |
---|
| 595 | operation = os.environ.get('PATH_INFO', '') |
---|
| 596 | if not operation: |
---|
| 597 | print "Status: 301 Moved Permanently" |
---|
| 598 | print 'Location: ' + os.environ['SCRIPT_NAME']+'/\n' |
---|
| 599 | sys.exit(0) |
---|
| 600 | |
---|
| 601 | if operation.startswith('/'): |
---|
| 602 | operation = operation[1:] |
---|
| 603 | if not operation: |
---|
| 604 | operation = 'list' |
---|
| 605 | |
---|
| 606 | main(operation, u, fields) |
---|
| 607 | |
---|