[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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[235] | 38 | import templates |
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[113] | 39 | from Cheetah.Template import Template |
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[209] | 40 | from sipb_xen_database import Machine, CDROM, ctx, connect |
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| 41 | import validation |
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| 42 | from webcommon import InvalidInput, CodeError, g |
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| 43 | import controls |
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[113] | 44 | |
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[235] | 45 | class Checkpoint: |
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| 46 | def __init__(self): |
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| 47 | self.start_time = time.time() |
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| 48 | self.checkpoints = [] |
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| 49 | |
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| 50 | def checkpoint(self, s): |
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| 51 | self.checkpoints.append((s, time.time())) |
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| 52 | |
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| 53 | def __str__(self): |
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| 54 | return ('Timing info:\n%s\n' % |
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| 55 | '\n'.join(['%s: %s' % (d, t - self.start_time) for |
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| 56 | (d, t) in self.checkpoints])) |
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| 57 | |
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| 58 | checkpoint = Checkpoint() |
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| 59 | |
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| 60 | |
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[205] | 61 | def helppopup(subj): |
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| 62 | """Return HTML code for a (?) link to a specified help topic""" |
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| 63 | return ('<span class="helplink"><a href="help?subject=' + subj + |
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| 64 | '&simple=true" target="_blank" ' + |
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| 65 | 'onclick="return helppopup(\'' + subj + '\')">(?)</a></span>') |
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| 66 | |
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| 67 | def makeErrorPre(old, addition): |
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| 68 | if addition is None: |
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| 69 | return |
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| 70 | if old: |
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| 71 | return old[:-6] + '\n----\n' + str(addition) + '</pre>' |
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| 72 | else: |
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| 73 | return '<p>STDERR:</p><pre>' + str(addition) + '</pre>' |
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[139] | 74 | |
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[205] | 75 | Template.helppopup = staticmethod(helppopup) |
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| 76 | Template.err = None |
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[139] | 77 | |
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[205] | 78 | class JsonDict: |
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| 79 | """Class to store a dictionary that will be converted to JSON""" |
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| 80 | def __init__(self, **kws): |
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| 81 | self.data = kws |
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| 82 | if 'err' in kws: |
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| 83 | err = kws['err'] |
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| 84 | del kws['err'] |
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| 85 | self.addError(err) |
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[139] | 86 | |
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[205] | 87 | def __str__(self): |
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| 88 | return simplejson.dumps(self.data) |
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| 89 | |
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| 90 | def addError(self, text): |
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| 91 | """Add stderr text to be displayed on the website.""" |
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| 92 | self.data['err'] = \ |
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| 93 | makeErrorPre(self.data.get('err'), text) |
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| 94 | |
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| 95 | class Defaults: |
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| 96 | """Class to store default values for fields.""" |
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| 97 | memory = 256 |
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| 98 | disk = 4.0 |
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| 99 | cdrom = '' |
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| 100 | name = '' |
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| 101 | vmtype = 'hvm' |
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| 102 | def __init__(self, max_memory=None, max_disk=None, **kws): |
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| 103 | if max_memory is not None: |
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| 104 | self.memory = min(self.memory, max_memory) |
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| 105 | if max_disk is not None: |
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| 106 | self.max_disk = min(self.disk, max_disk) |
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| 107 | for key in kws: |
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| 108 | setattr(self, key, kws[key]) |
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| 109 | |
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| 110 | |
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| 111 | |
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[209] | 112 | DEFAULT_HEADERS = {'Content-Type': 'text/html'} |
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[205] | 113 | |
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[153] | 114 | def error(op, user, fields, err, emsg): |
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[145] | 115 | """Print an error page when a CodeError occurs""" |
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[153] | 116 | d = dict(op=op, user=user, errorMessage=str(err), |
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| 117 | stderr=emsg) |
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[235] | 118 | return templates.error(searchList=[d]) |
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[113] | 119 | |
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[153] | 120 | def invalidInput(op, user, fields, err, emsg): |
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| 121 | """Print an error page when an InvalidInput exception occurs""" |
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| 122 | d = dict(op=op, user=user, err_field=err.err_field, |
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| 123 | err_value=str(err.err_value), stderr=emsg, |
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| 124 | errorMessage=str(err)) |
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[235] | 125 | return templates.invalid(searchList=[d]) |
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[153] | 126 | |
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[119] | 127 | def hasVnc(status): |
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[133] | 128 | """Does the machine with a given status list support VNC?""" |
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[119] | 129 | if status is None: |
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| 130 | return False |
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| 131 | for l in status: |
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| 132 | if l[0] == 'device' and l[1][0] == 'vfb': |
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| 133 | d = dict(l[1][1:]) |
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| 134 | return 'location' in d |
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| 135 | return False |
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| 136 | |
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[205] | 137 | def parseCreate(user, fields): |
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[134] | 138 | name = fields.getfirst('name') |
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[209] | 139 | if not validation.validMachineName(name): |
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[205] | 140 | raise InvalidInput('name', name, 'You must provide a machine name.') |
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[162] | 141 | name = name.lower() |
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[134] | 142 | |
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| 143 | if Machine.get_by(name=name): |
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[153] | 144 | raise InvalidInput('name', name, |
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[205] | 145 | "Name already exists.") |
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[113] | 146 | |
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[228] | 147 | owner = validation.testOwner(user, fields.getfirst('owner')) |
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| 148 | |
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[134] | 149 | memory = fields.getfirst('memory') |
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[209] | 150 | memory = validation.validMemory(user, memory, on=True) |
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[134] | 151 | |
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[243] | 152 | disk_size = fields.getfirst('disk') |
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| 153 | disk_size = validation.validDisk(user, disk_size) |
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[134] | 154 | |
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[113] | 155 | vm_type = fields.getfirst('vmtype') |
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| 156 | if vm_type not in ('hvm', 'paravm'): |
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[145] | 157 | raise CodeError("Invalid vm type '%s'" % vm_type) |
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[113] | 158 | is_hvm = (vm_type == 'hvm') |
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| 159 | |
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| 160 | cdrom = fields.getfirst('cdrom') |
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| 161 | if cdrom is not None and not CDROM.get(cdrom): |
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[205] | 162 | raise CodeError("Invalid cdrom type '%s'" % cdrom) |
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[243] | 163 | return dict(contact=user, name=name, memory=memory, disk_size=disk_size, |
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[228] | 164 | owner=owner, is_hvm=is_hvm, cdrom=cdrom) |
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[113] | 165 | |
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[205] | 166 | def create(user, fields): |
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| 167 | """Handler for create requests.""" |
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| 168 | try: |
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| 169 | parsed_fields = parseCreate(user, fields) |
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[209] | 170 | machine = controls.createVm(**parsed_fields) |
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[205] | 171 | except InvalidInput, err: |
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[207] | 172 | pass |
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[205] | 173 | else: |
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| 174 | err = None |
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| 175 | g.clear() #Changed global state |
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| 176 | d = getListDict(user) |
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| 177 | d['err'] = err |
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| 178 | if err: |
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| 179 | for field in fields.keys(): |
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| 180 | setattr(d['defaults'], field, fields.getfirst(field)) |
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| 181 | else: |
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| 182 | d['new_machine'] = parsed_fields['name'] |
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[235] | 183 | return templates.list(searchList=[d]) |
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[205] | 184 | |
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| 185 | |
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| 186 | def getListDict(user): |
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[246] | 187 | machines = [m for m in Machine.select() |
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| 188 | if validation.haveAccess(user, m)] |
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| 189 | #if user == 'moo': |
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| 190 | # machines = Machine.select() |
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| 191 | #else: |
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| 192 | # machines = Machine.query().join('users').filter_by(user=user).all() |
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[235] | 193 | checkpoint.checkpoint('Got my machines') |
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[133] | 194 | on = {} |
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[119] | 195 | has_vnc = {} |
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[152] | 196 | on = g.uptimes |
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[235] | 197 | checkpoint.checkpoint('Got uptimes') |
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[136] | 198 | for m in machines: |
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[205] | 199 | m.uptime = g.uptimes.get(m) |
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[144] | 200 | if not on[m]: |
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| 201 | has_vnc[m] = 'Off' |
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[138] | 202 | elif m.type.hvm: |
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[144] | 203 | has_vnc[m] = True |
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[136] | 204 | else: |
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[144] | 205 | has_vnc[m] = "ParaVM"+helppopup("paravm_console") |
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[209] | 206 | max_memory = validation.maxMemory(user) |
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| 207 | max_disk = validation.maxDisk(user) |
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[235] | 208 | checkpoint.checkpoint('Got max mem/disk') |
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[205] | 209 | defaults = Defaults(max_memory=max_memory, |
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| 210 | max_disk=max_disk, |
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[228] | 211 | owner=user, |
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[205] | 212 | cdrom='gutsy-i386') |
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[235] | 213 | checkpoint.checkpoint('Got defaults') |
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[113] | 214 | d = dict(user=user, |
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[209] | 215 | cant_add_vm=validation.cantAddVm(user), |
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[205] | 216 | max_memory=max_memory, |
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[144] | 217 | max_disk=max_disk, |
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[205] | 218 | defaults=defaults, |
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[113] | 219 | machines=machines, |
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[119] | 220 | has_vnc=has_vnc, |
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[157] | 221 | uptimes=g.uptimes, |
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[113] | 222 | cdroms=CDROM.select()) |
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[205] | 223 | return d |
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[113] | 224 | |
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[205] | 225 | def listVms(user, fields): |
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| 226 | """Handler for list requests.""" |
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[235] | 227 | checkpoint.checkpoint('Getting list dict') |
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[205] | 228 | d = getListDict(user) |
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[235] | 229 | checkpoint.checkpoint('Got list dict') |
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| 230 | return templates.list(searchList=[d]) |
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[205] | 231 | |
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[113] | 232 | def vnc(user, fields): |
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[119] | 233 | """VNC applet page. |
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| 234 | |
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| 235 | Note that due to same-domain restrictions, the applet connects to |
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| 236 | the webserver, which needs to forward those requests to the xen |
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| 237 | server. The Xen server runs another proxy that (1) authenticates |
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| 238 | and (2) finds the correct port for the VM. |
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| 239 | |
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| 240 | You might want iptables like: |
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| 241 | |
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[205] | 242 | -t nat -A PREROUTING -s ! 18.181.0.60 -i eth1 -p tcp -m tcp \ |
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| 243 | --dport 10003 -j DNAT --to-destination 18.181.0.60:10003 |
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| 244 | -t nat -A POSTROUTING -d 18.181.0.60 -o eth1 -p tcp -m tcp \ |
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| 245 | --dport 10003 -j SNAT --to-source 18.187.7.142 |
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| 246 | -A FORWARD -d 18.181.0.60 -i eth1 -o eth1 -p tcp -m tcp \ |
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| 247 | --dport 10003 -j ACCEPT |
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[145] | 248 | |
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| 249 | Remember to enable iptables! |
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| 250 | echo 1 > /proc/sys/net/ipv4/ip_forward |
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[119] | 251 | """ |
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[209] | 252 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[118] | 253 | |
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| 254 | TOKEN_KEY = "0M6W0U1IXexThi5idy8mnkqPKEq1LtEnlK/pZSn0cDrN" |
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| 255 | |
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| 256 | data = {} |
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[228] | 257 | data["user"] = user |
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[205] | 258 | data["machine"] = machine.name |
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| 259 | data["expires"] = time.time()+(5*60) |
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| 260 | pickled_data = cPickle.dumps(data) |
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[118] | 261 | m = hmac.new(TOKEN_KEY, digestmod=sha) |
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[205] | 262 | m.update(pickled_data) |
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| 263 | token = {'data': pickled_data, 'digest': m.digest()} |
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[118] | 264 | token = cPickle.dumps(token) |
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| 265 | token = base64.urlsafe_b64encode(token) |
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| 266 | |
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[209] | 267 | status = controls.statusInfo(machine) |
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[152] | 268 | has_vnc = hasVnc(status) |
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| 269 | |
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[113] | 270 | d = dict(user=user, |
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[152] | 271 | on=status, |
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| 272 | has_vnc=has_vnc, |
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[113] | 273 | machine=machine, |
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[119] | 274 | hostname=os.environ.get('SERVER_NAME', 'localhost'), |
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[113] | 275 | authtoken=token) |
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[235] | 276 | return templates.vnc(searchList=[d]) |
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[113] | 277 | |
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[133] | 278 | def getNicInfo(data_dict, machine): |
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[145] | 279 | """Helper function for info, get data on nics for a machine. |
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| 280 | |
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| 281 | Modifies data_dict to include the relevant data, and returns a list |
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| 282 | of (key, name) pairs to display "name: data_dict[key]" to the user. |
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| 283 | """ |
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[133] | 284 | data_dict['num_nics'] = len(machine.nics) |
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[227] | 285 | nic_fields_template = [('nic%s_hostname', 'NIC %s Hostname'), |
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[133] | 286 | ('nic%s_mac', 'NIC %s MAC Addr'), |
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| 287 | ('nic%s_ip', 'NIC %s IP'), |
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| 288 | ] |
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| 289 | nic_fields = [] |
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| 290 | for i in range(len(machine.nics)): |
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| 291 | nic_fields.extend([(x % i, y % i) for x, y in nic_fields_template]) |
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[227] | 292 | if not i: |
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| 293 | data_dict['nic%s_hostname' % i] = (machine.name + |
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| 294 | '.servers.csail.mit.edu') |
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[133] | 295 | data_dict['nic%s_mac' % i] = machine.nics[i].mac_addr |
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| 296 | data_dict['nic%s_ip' % i] = machine.nics[i].ip |
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| 297 | if len(machine.nics) == 1: |
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| 298 | nic_fields = [(x, y.replace('NIC 0 ', '')) for x, y in nic_fields] |
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| 299 | return nic_fields |
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| 300 | |
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| 301 | def getDiskInfo(data_dict, machine): |
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[145] | 302 | """Helper function for info, get data on disks for a machine. |
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| 303 | |
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| 304 | Modifies data_dict to include the relevant data, and returns a list |
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| 305 | of (key, name) pairs to display "name: data_dict[key]" to the user. |
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| 306 | """ |
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[133] | 307 | data_dict['num_disks'] = len(machine.disks) |
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| 308 | disk_fields_template = [('%s_size', '%s size')] |
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| 309 | disk_fields = [] |
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| 310 | for disk in machine.disks: |
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| 311 | name = disk.guest_device_name |
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[205] | 312 | disk_fields.extend([(x % name, y % name) for x, y in |
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| 313 | disk_fields_template]) |
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[211] | 314 | data_dict['%s_size' % name] = "%0.1f GiB" % (disk.size / 1024.) |
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[133] | 315 | return disk_fields |
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| 316 | |
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[205] | 317 | def command(user, fields): |
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| 318 | """Handler for running commands like boot and delete on a VM.""" |
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[207] | 319 | back = fields.getfirst('back') |
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[205] | 320 | try: |
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[209] | 321 | d = controls.commandResult(user, fields) |
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[207] | 322 | if d['command'] == 'Delete VM': |
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| 323 | back = 'list' |
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[205] | 324 | except InvalidInput, err: |
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[207] | 325 | if not back: |
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[205] | 326 | raise |
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[207] | 327 | print >> sys.stderr, err |
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[205] | 328 | result = None |
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| 329 | else: |
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| 330 | result = 'Success!' |
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[207] | 331 | if not back: |
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[235] | 332 | return templates.command(searchList=[d]) |
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[207] | 333 | if back == 'list': |
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[205] | 334 | g.clear() #Changed global state |
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| 335 | d = getListDict(user) |
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[207] | 336 | d['result'] = result |
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[235] | 337 | return templates.list(searchList=[d]) |
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[207] | 338 | elif back == 'info': |
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[209] | 339 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[205] | 340 | d = infoDict(user, machine) |
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[207] | 341 | d['result'] = result |
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[235] | 342 | return templates.info(searchList=[d]) |
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[205] | 343 | else: |
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[235] | 344 | raise InvalidInput |
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| 345 | ('back', back, 'Not a known back page.') |
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[205] | 346 | |
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| 347 | def modifyDict(user, fields): |
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[177] | 348 | olddisk = {} |
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[161] | 349 | transaction = ctx.current.create_transaction() |
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| 350 | try: |
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[209] | 351 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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| 352 | owner = validation.testOwner(user, fields.getfirst('owner'), machine) |
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| 353 | admin = validation.testAdmin(user, fields.getfirst('administrator'), |
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| 354 | machine) |
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| 355 | contact = validation.testContact(user, fields.getfirst('contact'), |
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| 356 | machine) |
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| 357 | name = validation.testName(user, fields.getfirst('name'), machine) |
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[161] | 358 | oldname = machine.name |
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[205] | 359 | command = "modify" |
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[153] | 360 | |
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[161] | 361 | memory = fields.getfirst('memory') |
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| 362 | if memory is not None: |
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[209] | 363 | memory = validation.validMemory(user, memory, machine, on=False) |
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[161] | 364 | machine.memory = memory |
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[177] | 365 | |
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[209] | 366 | disksize = validation.testDisk(user, fields.getfirst('disk')) |
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[161] | 367 | if disksize is not None: |
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[209] | 368 | disksize = validation.validDisk(user, disksize, machine) |
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[177] | 369 | disk = machine.disks[0] |
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| 370 | if disk.size != disksize: |
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| 371 | olddisk[disk.guest_device_name] = disksize |
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| 372 | disk.size = disksize |
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| 373 | ctx.current.save(disk) |
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[161] | 374 | |
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[187] | 375 | if owner is not None: |
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[161] | 376 | machine.owner = owner |
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[187] | 377 | if name is not None: |
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[161] | 378 | machine.name = name |
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[187] | 379 | if admin is not None: |
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| 380 | machine.administrator = admin |
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| 381 | if contact is not None: |
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| 382 | machine.contact = contact |
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[161] | 383 | |
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| 384 | ctx.current.save(machine) |
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| 385 | transaction.commit() |
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| 386 | except: |
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| 387 | transaction.rollback() |
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[163] | 388 | raise |
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[177] | 389 | for diskname in olddisk: |
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[209] | 390 | controls.resizeDisk(oldname, diskname, str(olddisk[diskname])) |
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[187] | 391 | if name is not None: |
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[209] | 392 | controls.renameMachine(machine, oldname, name) |
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[205] | 393 | return dict(user=user, |
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| 394 | command=command, |
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| 395 | machine=machine) |
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| 396 | |
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| 397 | def modify(user, fields): |
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| 398 | """Handler for modifying attributes of a machine.""" |
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| 399 | try: |
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| 400 | modify_dict = modifyDict(user, fields) |
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| 401 | except InvalidInput, err: |
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[207] | 402 | result = None |
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[209] | 403 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[205] | 404 | else: |
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| 405 | machine = modify_dict['machine'] |
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[209] | 406 | result = 'Success!' |
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[205] | 407 | err = None |
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| 408 | info_dict = infoDict(user, machine) |
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| 409 | info_dict['err'] = err |
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| 410 | if err: |
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| 411 | for field in fields.keys(): |
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| 412 | setattr(info_dict['defaults'], field, fields.getfirst(field)) |
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[207] | 413 | info_dict['result'] = result |
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[235] | 414 | return templates.info(searchList=[info_dict]) |
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[205] | 415 | |
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[161] | 416 | |
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[205] | 417 | def helpHandler(user, fields): |
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[145] | 418 | """Handler for help messages.""" |
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[139] | 419 | simple = fields.getfirst('simple') |
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| 420 | subjects = fields.getlist('subject') |
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| 421 | |
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[205] | 422 | help_mapping = dict(paravm_console=""" |
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[139] | 423 | ParaVM machines do not support console access over VNC. To access |
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| 424 | these machines, you either need to boot with a liveCD and ssh in or |
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| 425 | hope that the sipb-xen maintainers add support for serial consoles.""", |
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[205] | 426 | hvm_paravm=""" |
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[139] | 427 | HVM machines use the virtualization features of the processor, while |
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| 428 | ParaVM machines use Xen's emulation of virtualization features. You |
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| 429 | want an HVM virtualized machine.""", |
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[205] | 430 | cpu_weight=""" |
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| 431 | Don't ask us! We're as mystified as you are.""", |
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| 432 | owner=""" |
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| 433 | The owner field is used to determine <a |
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| 434 | href="help?subject=quotas">quotas</a>. It must be the name of a |
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| 435 | locker that you are an AFS administrator of. In particular, you or an |
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| 436 | AFS group you are a member of must have AFS rlidwka bits on the |
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[187] | 437 | locker. You can check see who administers the LOCKER locker using the |
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[205] | 438 | command 'fs la /mit/LOCKER' on Athena.) See also <a |
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| 439 | href="help?subject=administrator">administrator</a>.""", |
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| 440 | administrator=""" |
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| 441 | The administrator field determines who can access the console and |
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| 442 | power on and off the machine. This can be either a user or a moira |
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| 443 | group.""", |
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| 444 | quotas=""" |
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| 445 | Quotas are determined on a per-locker basis. Each quota may have a |
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| 446 | maximum of 512 megabytes of active ram, 50 gigabytes of disk, and 4 |
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| 447 | active machines.""" |
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[187] | 448 | ) |
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[139] | 449 | |
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[187] | 450 | if not subjects: |
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[205] | 451 | subjects = sorted(help_mapping.keys()) |
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[187] | 452 | |
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[139] | 453 | d = dict(user=user, |
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| 454 | simple=simple, |
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| 455 | subjects=subjects, |
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[205] | 456 | mapping=help_mapping) |
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[139] | 457 | |
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[235] | 458 | return templates.help(searchList=[d]) |
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[139] | 459 | |
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[133] | 460 | |
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[205] | 461 | def badOperation(u, e): |
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| 462 | raise CodeError("Unknown operation") |
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| 463 | |
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| 464 | def infoDict(user, machine): |
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[209] | 465 | status = controls.statusInfo(machine) |
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[235] | 466 | checkpoint.checkpoint('Getting status info') |
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[133] | 467 | has_vnc = hasVnc(status) |
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| 468 | if status is None: |
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| 469 | main_status = dict(name=machine.name, |
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| 470 | memory=str(machine.memory)) |
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[205] | 471 | uptime = None |
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| 472 | cputime = None |
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[133] | 473 | else: |
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| 474 | main_status = dict(status[1:]) |
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[167] | 475 | start_time = float(main_status.get('start_time', 0)) |
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| 476 | uptime = datetime.timedelta(seconds=int(time.time()-start_time)) |
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| 477 | cpu_time_float = float(main_status.get('cpu_time', 0)) |
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| 478 | cputime = datetime.timedelta(seconds=int(cpu_time_float)) |
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[235] | 479 | checkpoint.checkpoint('Status') |
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[133] | 480 | display_fields = """name uptime memory state cpu_weight on_reboot |
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| 481 | on_poweroff on_crash on_xend_start on_xend_stop bootloader""".split() |
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| 482 | display_fields = [('name', 'Name'), |
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| 483 | ('owner', 'Owner'), |
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[187] | 484 | ('administrator', 'Administrator'), |
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[133] | 485 | ('contact', 'Contact'), |
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[136] | 486 | ('type', 'Type'), |
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[133] | 487 | 'NIC_INFO', |
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| 488 | ('uptime', 'uptime'), |
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| 489 | ('cputime', 'CPU usage'), |
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| 490 | ('memory', 'RAM'), |
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| 491 | 'DISK_INFO', |
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| 492 | ('state', 'state (xen format)'), |
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[139] | 493 | ('cpu_weight', 'CPU weight'+helppopup('cpu_weight')), |
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[133] | 494 | ('on_reboot', 'Action on VM reboot'), |
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| 495 | ('on_poweroff', 'Action on VM poweroff'), |
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| 496 | ('on_crash', 'Action on VM crash'), |
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| 497 | ('on_xend_start', 'Action on Xen start'), |
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| 498 | ('on_xend_stop', 'Action on Xen stop'), |
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| 499 | ('bootloader', 'Bootloader options'), |
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| 500 | ] |
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| 501 | fields = [] |
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| 502 | machine_info = {} |
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[147] | 503 | machine_info['name'] = machine.name |
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[136] | 504 | machine_info['type'] = machine.type.hvm and 'HVM' or 'ParaVM' |
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[133] | 505 | machine_info['owner'] = machine.owner |
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[187] | 506 | machine_info['administrator'] = machine.administrator |
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[133] | 507 | machine_info['contact'] = machine.contact |
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| 508 | |
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| 509 | nic_fields = getNicInfo(machine_info, machine) |
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| 510 | nic_point = display_fields.index('NIC_INFO') |
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[205] | 511 | display_fields = (display_fields[:nic_point] + nic_fields + |
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| 512 | display_fields[nic_point+1:]) |
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[133] | 513 | |
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| 514 | disk_fields = getDiskInfo(machine_info, machine) |
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| 515 | disk_point = display_fields.index('DISK_INFO') |
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[205] | 516 | display_fields = (display_fields[:disk_point] + disk_fields + |
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| 517 | display_fields[disk_point+1:]) |
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[133] | 518 | |
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[211] | 519 | main_status['memory'] += ' MiB' |
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[133] | 520 | for field, disp in display_fields: |
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[167] | 521 | if field in ('uptime', 'cputime') and locals()[field] is not None: |
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[133] | 522 | fields.append((disp, locals()[field])) |
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[147] | 523 | elif field in machine_info: |
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| 524 | fields.append((disp, machine_info[field])) |
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[133] | 525 | elif field in main_status: |
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| 526 | fields.append((disp, main_status[field])) |
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| 527 | else: |
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| 528 | pass |
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| 529 | #fields.append((disp, None)) |
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[235] | 530 | |
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| 531 | checkpoint.checkpoint('Got fields') |
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| 532 | |
---|
| 533 | |
---|
| 534 | max_mem = validation.maxMemory(user, machine, False) |
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| 535 | checkpoint.checkpoint('Got mem') |
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[209] | 536 | max_disk = validation.maxDisk(user, machine) |
---|
| 537 | defaults = Defaults() |
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[205] | 538 | for name in 'machine_id name administrator owner memory contact'.split(): |
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| 539 | setattr(defaults, name, getattr(machine, name)) |
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| 540 | defaults.disk = "%0.2f" % (machine.disks[0].size/1024.) |
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[235] | 541 | checkpoint.checkpoint('Got defaults') |
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[113] | 542 | d = dict(user=user, |
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[133] | 543 | cdroms=CDROM.select(), |
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| 544 | on=status is not None, |
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| 545 | machine=machine, |
---|
[205] | 546 | defaults=defaults, |
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[133] | 547 | has_vnc=has_vnc, |
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| 548 | uptime=str(uptime), |
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| 549 | ram=machine.memory, |
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[144] | 550 | max_mem=max_mem, |
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| 551 | max_disk=max_disk, |
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[166] | 552 | owner_help=helppopup("owner"), |
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[133] | 553 | fields = fields) |
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[205] | 554 | return d |
---|
[113] | 555 | |
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[205] | 556 | def info(user, fields): |
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| 557 | """Handler for info on a single VM.""" |
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[209] | 558 | machine = validation.testMachineId(user, fields.getfirst('machine_id')) |
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[205] | 559 | d = infoDict(user, machine) |
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[235] | 560 | checkpoint.checkpoint('Got infodict') |
---|
| 561 | return templates.info(searchList=[d]) |
---|
[205] | 562 | |
---|
[113] | 563 | mapping = dict(list=listVms, |
---|
| 564 | vnc=vnc, |
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[133] | 565 | command=command, |
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| 566 | modify=modify, |
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[113] | 567 | info=info, |
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[139] | 568 | create=create, |
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[205] | 569 | help=helpHandler) |
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[113] | 570 | |
---|
[205] | 571 | def printHeaders(headers): |
---|
| 572 | for key, value in headers.iteritems(): |
---|
| 573 | print '%s: %s' % (key, value) |
---|
| 574 | print |
---|
| 575 | |
---|
| 576 | |
---|
| 577 | def getUser(): |
---|
| 578 | """Return the current user based on the SSL environment variables""" |
---|
| 579 | if 'SSL_CLIENT_S_DN_Email' in os.environ: |
---|
| 580 | username = os.environ['SSL_CLIENT_S_DN_Email'].split("@")[0] |
---|
[228] | 581 | return username |
---|
[205] | 582 | else: |
---|
[228] | 583 | return 'moo' |
---|
[205] | 584 | |
---|
[209] | 585 | def main(operation, user, fields): |
---|
[235] | 586 | start_time = time.time() |
---|
[153] | 587 | fun = mapping.get(operation, badOperation) |
---|
[205] | 588 | |
---|
| 589 | if fun not in (helpHandler, ): |
---|
| 590 | connect('postgres://sipb-xen@sipb-xen-dev.mit.edu/sipb_xen') |
---|
[119] | 591 | try: |
---|
[235] | 592 | checkpoint.checkpoint('Before') |
---|
[153] | 593 | output = fun(u, fields) |
---|
[235] | 594 | checkpoint.checkpoint('After') |
---|
[205] | 595 | |
---|
[209] | 596 | headers = dict(DEFAULT_HEADERS) |
---|
[205] | 597 | if isinstance(output, tuple): |
---|
| 598 | new_headers, output = output |
---|
| 599 | headers.update(new_headers) |
---|
| 600 | e = revertStandardError() |
---|
[153] | 601 | if e: |
---|
[205] | 602 | output.addError(e) |
---|
| 603 | printHeaders(headers) |
---|
[235] | 604 | output_string = str(output) |
---|
| 605 | checkpoint.checkpoint('output as a string') |
---|
| 606 | print output_string |
---|
| 607 | print '<pre>%s</pre>' % checkpoint |
---|
[205] | 608 | except Exception, err: |
---|
| 609 | if not fields.has_key('js'): |
---|
| 610 | if isinstance(err, CodeError): |
---|
| 611 | print 'Content-Type: text/html\n' |
---|
| 612 | e = revertStandardError() |
---|
| 613 | print error(operation, u, fields, err, e) |
---|
| 614 | sys.exit(1) |
---|
| 615 | if isinstance(err, InvalidInput): |
---|
| 616 | print 'Content-Type: text/html\n' |
---|
| 617 | e = revertStandardError() |
---|
| 618 | print invalidInput(operation, u, fields, err, e) |
---|
| 619 | sys.exit(1) |
---|
[153] | 620 | print 'Content-Type: text/plain\n' |
---|
[205] | 621 | print 'Uh-oh! We experienced an error.' |
---|
| 622 | print 'Please email sipb-xen@mit.edu with the contents of this page.' |
---|
| 623 | print '----' |
---|
| 624 | e = revertStandardError() |
---|
[153] | 625 | print e |
---|
| 626 | print '----' |
---|
| 627 | raise |
---|
[209] | 628 | |
---|
| 629 | if __name__ == '__main__': |
---|
| 630 | fields = cgi.FieldStorage() |
---|
| 631 | u = getUser() |
---|
| 632 | g.user = u |
---|
| 633 | operation = os.environ.get('PATH_INFO', '') |
---|
| 634 | if not operation: |
---|
| 635 | print "Status: 301 Moved Permanently" |
---|
| 636 | print 'Location: ' + os.environ['SCRIPT_NAME']+'/\n' |
---|
| 637 | sys.exit(0) |
---|
| 638 | |
---|
| 639 | if operation.startswith('/'): |
---|
| 640 | operation = operation[1:] |
---|
| 641 | if not operation: |
---|
| 642 | operation = 'list' |
---|
| 643 | |
---|
[235] | 644 | #main(operation, u, fields) |
---|
| 645 | import profile |
---|
| 646 | profile.run('main(operation, u, fields)', 'log-'+operation) |
---|
[209] | 647 | |
---|