+ReplyTo = ConfModule.replyto
+PingFrom = ConfModule.pingfrom
+ChPassFrom = ConfModule.chpassfrom
+ChangeFrom = ConfModule.changefrom
+ReplayCacheFile = ConfModule.replaycachefile
+SSHFingerprintFile = ConfModule.fingerprintfile
+
+UUID_FORMAT = '[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}'
+machine_regex = re.compile("^[0-9a-zA-Z.-]+$")
+
+EX_TEMPFAIL = 75
+EX_PERMFAIL = 65 # EX_DATAERR
+Error = 'Message Error'
+SeenKey = 0
+SeenDNS = 0
+mailRBL = {}
+mailRHSBL = {}
+mailWhitelist = {}
+SeenList = {}
+DNS = {}
+ValidHostNames = [] # will be initialized in later
+
+SSHFingerprint = re.compile(r'^(\d+) ([0-9a-f\:]{47}|SHA256:[0-9A-Za-z/+]{43}) (.+)$')
+SSHRSA1Match = re.compile(r'^^(.* )?\d+ \d+ \d+')
+
+ArbChanges = {"c": "..",
+ "l": ".*",
+ "facsimileTelephoneNumber": ".*",
+ "telephoneNumber": ".*",
+ "postalAddress": ".*",
+ "bATVToken": ".*",
+ "postalCode": ".*",
+ "loginShell": ".*",
+ "emailForward": "^([^<>@]+@.+)?$",
+ "jabberJID": "^([^<>@]+@.+)?$",
+ "ircNick": ".*",
+ "icqUin": "^[0-9]*$",
+ "onVacation": ".*",
+ "labeledURI": ".*",
+ "birthDate": "^([0-9]{4})([01][0-9])([0-3][0-9])$",
+ "mailDisableMessage": ".*",
+ "mailGreylisting": "^(TRUE|FALSE)$",
+ "mailCallout": "^(TRUE|FALSE)$",
+ "mailDefaultOptions": "^(TRUE|FALSE)$",
+ "VoIP": ".*",
+ "mailContentInspectionAction": "^(reject|blackhole|markup)$", }
+
+DelItems = {"c": None,
+ "l": None,
+ "facsimileTelephoneNumber": None,
+ "telephoneNumber": None,
+ "postalAddress": None,
+ "bATVToken": None,
+ "postalCode": None,
+ "emailForward": None,
+ "ircNick": None,
+ "onVacation": None,
+ "labeledURI": None,
+ "latitude": None,
+ "longitude": None,
+ "icqUin": None,
+ "jabberJID": None,
+ "jpegPhoto": None,
+ "dnsZoneEntry": None,
+ "sshRSAAuthKey": None,
+ "birthDate": None,
+ "mailGreylisting": None,
+ "mailCallout": None,
+ "mailRBL": None,
+ "mailRHSBL": None,
+ "mailWhitelist": None,
+ "mailDisableMessage": None,
+ "mailDefaultOptions": None,
+ "VoIP": None,
+ "mailContentInspectionAction": None,
+ }
+
+
+# Decode a GPS location from some common forms
+def LocDecode(Str, Dir):
+ # Check for Decimal degrees, DGM, or DGMS
+ if re.match(r"^[+-]?[\d.]+$", Str) is not None:
+ return Str
+
+ Deg = '0'
+ Min = None
+ Sec = None
+ Dr = Dir[0]
+
+ # Check for DDDxMM.MMMM where x = [nsew]
+ Match = re.match(r"^(\d+)([" + Dir + r"])([\d.]+)$", Str)
+ if Match:
+ G = Match.groups()
+ Deg = G[0]
+ Min = G[2]
+ Dr = G[1]
+
+ # Check for DD.DD x
+ Match = re.match(r"^([\d.]+) ?([" + Dir + r"])$", Str)
+ if Match:
+ G = Match.groups()
+ Deg = G[0]
+ Dr = G[1]
+
+ # Check for DD:MM.MM x
+ Match = re.match(r"^(\d+):([\d.]+) ?([" + Dir + "])$", Str)
+ if Match:
+ G = Match.groups()
+ Deg = G[0]
+ Min = G[1]
+ Dr = G[2]
+
+ # Check for DD:MM:SS.SS x
+ Match = re.match(r"^(\d+):(\d+):([\d.]+) ?([" + Dir + "])$", Str)
+ if Match:
+ G = Match.groups()
+ Deg = G[0]
+ Min = G[1]
+ Sec = G[2]
+ Dr = G[3]
+
+ # Some simple checks
+ if float(Deg) > 180:
+ raise UDFormatError("Bad degrees")
+ if Min is not None and float(Min) > 60:
+ raise UDFormatError("Bad minutes")
+ if Sec is not None and float(Sec) > 60:
+ raise UDFormatError("Bad seconds")
+
+ # Pad on an extra leading 0 to disambiguate small numbers
+ if len(Deg) <= 1 or Deg[1] == '.':
+ Deg = '0' + Deg
+ if Min is not None and (len(Min) <= 1 or Min[1] == '.'):
+ Min = '0' + Min
+ if Sec is not None and (len(Sec) <= 1 or Sec[1] == '.'):
+ Sec = '0' + Sec
+
+ # Construct a DGM/DGMS type value from the components.
+ Res = "+"
+ if Dr == Dir[1]:
+ Res = "-"
+ Res = Res + Deg
+ if Min is not None:
+ Res = Res + Min
+ if Sec is not None:
+ Res = Res + Sec
+ return Res
+
+
+# Handle changing a set of arbitary fields
+# <field>: value
+def DoArbChange(Str, Attrs):
+ Match = re.match("^([^ :]+): (.*)$", Str)
+ if Match is None:
+ return None
+ G = Match.groups()
+
+ attrName = G[0].lower()
+ for i in ArbChanges.keys():
+ if i.lower() == attrName:
+ attrName = i
+ break
+ if attrName in ArbChanges:
+ return None
+
+ if re.match(ArbChanges[attrName], G[1]) is None:
+ raise UDFormatError("Item does not match the required format" + ArbChanges[attrName])
+
+ Attrs.append((ldap.MOD_REPLACE, attrName, value))
+ return "Changed entry %s to %s" % (attrName, value)
+
+
+# Handle changing a set of arbitary fields
+# <field>: value
+def DoDel(Str, Attrs):
+ Match = re.match("^del (.*)$", Str)
+ if Match is None:
+ return None
+ G = Match.groups()
+
+ attrName = G[0].lower()
+ for i in DelItems.keys():
+ if i.lower() == attrName:
+ attrName = i
+ break
+ if attrName not in DelItems:
+ return "Cannot erase entry %s" % (attrName,)
+
+ Attrs.append((ldap.MOD_DELETE, attrName, None))
+ return "Removed entry %s" % (attrName)
+
+
+# Handle a position change message, the line format is:
+# Lat: -12412.23 Long: +12341.2342
+def DoPosition(Str, Attrs):
+ Match = re.match(r"^lat: ([+\-]?[\d:.ns]+(?: ?[ns])?) long: ([+\-]?[\d:.ew]+(?: ?[ew])?)$", Str.lower())
+ if Match is None:
+ return None
+
+ G = Match.groups()
+ try:
+ sLat = LocDecode(G[0], "ns")
+ sLong = LocDecode(G[1], "ew")
+ Lat = DecDegree(sLat, 1)
+ Long = DecDegree(sLong, 1)
+ except Exception:
+ raise UDFormatError("Positions were found, but they are not correctly formed")
+
+ Attrs.append((ldap.MOD_REPLACE, "latitude", sLat))
+ Attrs.append((ldap.MOD_REPLACE, "longitude", sLong))
+ return "Position set to %s/%s (%s/%s decimal degrees)" % (sLat, sLong, Lat, Long)
+
+
+# Load bad ssh fingerprints
+def LoadBadSSH():
+ f = open(SSHFingerprintFile, "r")
+ bad = []
+ FingerprintLine = re.compile(r'^([0-9a-f:]{47}).*$')
+ for line in f.readlines():
+ Match = FingerprintLine.match(line)
+ if Match is not None:
+ g = Match.groups()
+ bad.append(g[0])
+ return bad
+
+
+# Handle an SSH authentication key, the line format is:
+# [options] 1024 35 13188913666680[..] [comment]
+# maybe it really should be:
+# [allowed_hosts=machine1,machine2 ][options ]ssh-rsa keybytes [comment]
+def DoSSH(Str, Attrs, badkeys, uid):
+ Match = SSH2AuthSplit.match(Str)
+ if Match is None:
+ return None
+ g = Match.groups()
+ typekey = g[1]
+ if Match is None:
+ Match = SSHRSA1Match.match(Str)
+ if Match is not None:
+ return "RSA1 keys not supported anymore"
+ return None
+
+ # lines can now be prepended with "allowed_hosts=machine1,machine2 "
+ machines = []
+ if Str.startswith("allowed_hosts="):
+ Str = Str.split("=", 1)[1]
+ if ' ' not in Str:
+ return "invalid ssh key syntax with machine specification"
+ machines, Str = Str.split(' ', 1)
+ machines = machines.split(",")
+ for m in machines:
+ if not m:
+ return "empty machine specification for ssh key"
+ if not machine_regex.match(m):
+ return "machine specification for ssh key contains invalid characters"
+ if m not in ValidHostNames:
+ return "unknown machine {} used in allowed_hosts stanza for ssh keys".format(m)
+
+ (fd, path) = tempfile.mkstemp(".pub", "sshkeytry", "/tmp")
+ f = open(path, "w")
+ f.write("%s\n" % (Str))
+ f.close()
+ cmd = "/usr/bin/ssh-keygen -l -f %s < /dev/null" % (path)
+ (result, output) = commands.getstatusoutput(cmd)
+ os.remove(path)
+ if (result != 0):
+ raise UDExecuteError("ssh-keygen -l invocation failed!\n%s\n" % (output))
+
+ # format the string again for ldap:
+ if machines:
+ Str = "allowed_hosts=%s %s" % (",".join(machines), Str)
+
+ # Head
+ Date = time.strftime("%a, %d %b %Y %H:%M:%S +0000", time.gmtime(time.time()))
+ ErrReplyHead = "From: %s\nCc: %s\nReply-To: %s\nDate: %s\n" % (os.environ['SENDER'], os.environ['SENDER'], ReplyTo, Date)
+ Subst = {}
+ Subst["__ADMIN__"] = ReplyTo
+ Subst["__USER__"] = uid
+
+ Match = SSHFingerprint.match(output)
+ if Match is None:
+ return "Failed to match SSH fingerprint, has the output of ssh-keygen changed?"
+ g = Match.groups()
+ key_size = g[0]
+ fingerprint = g[1]
+
+ if typekey == "rsa":
+ key_size_ok = (int(key_size) >= 2048)
+ elif typekey == "ed25519":
+ key_size_ok = True
+ else:
+ key_size_ok = False
+
+ if not key_size_ok:
+ return "SSH key fails formal criteria, not added. We only accept RSA keys (>= 2048 bits) or ed25519 keys."
+ elif fingerprint in badkeys:
+ try:
+ # Body
+ Subst["__ERROR__"] = "SSH key with fingerprint %s known as bad key" % (g[1])
+ ErrReply = TemplateSubst(Subst, open(TemplatesDir + "admin-info", "r").read())
+
+ Child = os.popen("/usr/sbin/sendmail -t", "w")
+ Child.write(ErrReplyHead)
+ Child.write(ErrReply)
+ if Child.close() is not None:
+ raise UDExecuteError("Sendmail gave a non-zero return code")
+ except Exception:
+ sys.exit(EX_TEMPFAIL)
+
+ # And now break and stop processing input, which sends a reply to the user.
+ raise UDFormatError("Submitted SSH key known to be bad and insecure, processing halted, NOTHING MODIFIED AT ALL")
+
+ global SeenKey
+ if SeenKey:
+ Attrs.append((ldap.MOD_ADD, "sshRSAAuthKey", Str))
+ return "SSH Key added: %s %s [%s]" % (key_size, fingerprint, FormatSSHAuth(Str))
+
+ Attrs.append((ldap.MOD_REPLACE, "sshRSAAuthKey", Str))
+ SeenKey = 1
+ return "SSH Keys replaced with: %s %s [%s]" % (key_size, fingerprint, FormatSSHAuth(Str))
+
+
+# Handle changing a dns entry
+# host IN A 12.12.12.12
+# host IN AAAA 1234::5678
+# host IN CNAME foo.bar. <- Trailing dot is required
+# host IN MX foo.bar. <- Trailing dot is required
+def DoDNS(Str, Attrs, DnRecord):
+ cnamerecord = re.match(r"^[-\w]+\s+IN\s+CNAME\s+([-\w.]+\.)$", Str, re.IGNORECASE)
+ arecord = re.match(r'^[-\w]+\s+IN\s+A\s+(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})$', Str, re.IGNORECASE)
+ mxrecord = re.match(r"^[-\w]+\s+IN\s+MX\s+(\d{1,3})\s+([-\w.]+\.)$", Str, re.IGNORECASE)
+ txtrecord = re.match(r"^[-\w]+\s+IN\s+TXT\s+([-\d. a-z\t<>@:]+)", Str, re.IGNORECASE)
+ aaaarecord = re.match(r'^[-\w]+\s+IN\s+AAAA\s+([A-F0-9:]{2,39})$', Str, re.IGNORECASE)
+
+ if cnamerecord is None and\
+ arecord is None and\
+ mxrecord is None and\
+ txtrecord is None and\
+ aaaarecord is None:
+ return None
+
+ # Check if the name is already taken
+ G = re.match(r'^([-\w+]+)\s', Str)
+ if G is None:
+ raise UDFormatError("Hostname not found although we already passed record syntax checks")
+ hostname = G.group(1)
+
+ # Check for collisions
+ global lc
+ # [JT 20070409 - search for both tab and space suffixed hostnames
+ # since we accept either. It'd probably be better to parse the
+ # incoming string in order to construct what we feed LDAP rather
+ # than just passing it through as is.]
+ filter = "(|(dnsZoneEntry=%s *)(dnsZoneEntry=%s *))" % (hostname, hostname)
+ Rec = lc.search_s(BaseDn, ldap.SCOPE_ONELEVEL, filter, ["uid"])
+ for x in Rec:
+ if GetAttr(x, "uid") != GetAttr(DnRecord, "uid"):
+ return "DNS entry is already owned by " + GetAttr(x, "uid")
+
+ global SeenDNS
+ global DNS
+
+ if cnamerecord:
+ if hostname in DNS:
+ return "CNAME and other RR types not allowed: " + Str
+ else:
+ DNS[hostname] = 2
+ else:
+ if DNS.get(hostname) == 2:
+ return "CNAME and other RR types not allowed: " + Str
+ else:
+ DNS[hostname] = 1
+
+ if cnamerecord is not None:
+ sanitized = "%s IN CNAME %s" % (hostname, cnamerecord.group(1))
+ elif txtrecord is not None:
+ sanitized = "%s IN TXT %s" % (hostname, txtrecord.group(1))
+ elif arecord is not None:
+ ipaddress = arecord.group(1)
+ for quad in ipaddress.split('.'):
+ if not (int(quad) >= 0 and int(quad) <= 255):
+ return "Invalid quad %s in IP address %s in line %s" % (quad, ipaddress, Str)
+ sanitized = "%s IN A %s" % (hostname, ipaddress)
+ elif mxrecord is not None:
+ priority = mxrecord.group(1)
+ mx = mxrecord.group(2)
+ sanitized = "%s IN MX %s %s" % (hostname, priority, mx)
+ elif aaaarecord is not None:
+ ipv6address = aaaarecord.group(1)
+ parts = ipv6address.split(':')
+ if len(parts) > 8:
+ return "Invalid IPv6 address (%s): too many parts" % (ipv6address)
+ if len(parts) <= 2:
+ return "Invalid IPv6 address (%s): too few parts" % (ipv6address)
+ if parts[0] == "":
+ parts.pop(0)
+ if parts[-1] == "":
+ parts.pop(-1)
+ seenEmptypart = False
+ for p in parts:
+ if len(p) > 4:
+ return "Invalid IPv6 address (%s): part %s is longer than 4 characters" % (ipv6address, p)
+ if p == "":
+ if seenEmptypart:
+ return "Invalid IPv6 address (%s): more than one :: (nothing in between colons) is not allowed" % (ipv6address)
+ seenEmptypart = True
+ sanitized = "%s IN AAAA %s" % (hostname, ipv6address)
+ else:
+ raise UDFormatError("None of the types I recognize was it. I shouldn't be here. confused.")
+
+ if SeenDNS:
+ Attrs.append((ldap.MOD_ADD, "dnsZoneEntry", sanitized))
+ return "DNS Entry added " + sanitized
+
+ Attrs.append((ldap.MOD_REPLACE, "dnsZoneEntry", sanitized))
+ SeenDNS = 1
+ return "DNS Entry replaced with " + sanitized
+
+
+# Handle an RBL list (mailRBL, mailRHSBL, mailWhitelist)
+def DoRBL(Str, Attrs):
+ Match = re.compile('^mail(rbl|rhsbl|whitelist) ([-a-z0-9.]+)$').match(Str.lower())
+ if Match is None:
+ return None
+
+ if Match.group(1) == "rbl":
+ Key = "mailRBL"
+ if Match.group(1) == "rhsbl":
+ Key = "mailRHSBL"
+ if Match.group(1) == "whitelist":
+ Key = "mailWhitelist"
+ Host = Match.group(2)
+
+ global SeenList
+ if Key in SeenList:
+ Attrs.append((ldap.MOD_ADD, Key, Host))
+ return "%s added %s" % (Key, Host)
+
+ Attrs.append((ldap.MOD_REPLACE, Key, Host))
+ SeenList[Key] = 1
+ return "%s replaced with %s" % (Key, Host)
+
+
+# Handle a ConfirmSudoPassword request
+def DoConfirmSudopassword(Str, SudoPasswd):
+ Match = re.compile('^confirm sudopassword (' + UUID_FORMAT + ') ([a-z0-9.,*-]+) ([0-9a-f]{40})$').match(Str)
+ if Match is None:
+ return None
+
+ uuid = Match.group(1)
+ hosts = Match.group(2)
+ hmac = Match.group(3)
+
+ SudoPasswd[uuid] = (hosts, hmac)
+ return "got confirm for sudo password %s on host(s) %s, auth code %s" % (uuid, hosts, hmac)
+
+
+def FinishConfirmSudopassword(lc, uid, Attrs, SudoPasswd):
+ result = "\n"
+
+ if len(SudoPasswd) == 0:
+ return None
+
+ res = lc.search_s(BaseDn, ldap.SCOPE_ONELEVEL, "uid=" + uid, ['sudoPassword'])
+ if len(res) != 1:
+ raise UDFormatError("Not exactly one hit when searching for user")
+ if sudoPassword in res[0][1]:
+ inldap = res[0][1]['sudoPassword']
+ else:
+ inldap = []
+
+ newldap = []
+ for entry in inldap:
+ Match = re.compile('^(' + UUID_FORMAT + ') (confirmed:[0-9a-f]{40}|unconfirmed) ([a-z0-9.,*-]+) ([^ ]+)$').match(entry)
+ if Match is None:
+ raise UDFormatError("Could not parse existing sudopasswd entry")
+ uuid = Match.group(1)
+ status = Match.group(2)
+ hosts = Match.group(3)
+ cryptedpass = Match.group(4)
+
+ if uuid in SudoPasswd:
+ confirmedHosts = SudoPasswd[uuid][0]
+ confirmedHmac = SudoPasswd[uuid][1]
+ if status.startswith('confirmed:'):
+ if status == 'confirmed:' + make_passwd_hmac('password-is-confirmed', 'sudo', uid, uuid, hosts, cryptedpass):
+ result += "Entry %s for sudo password on hosts %s already confirmed.\n" % (uuid, hosts)
+ else:
+ result += "Entry %s for sudo password on hosts %s is listed as confirmed, but HMAC does not verify.\n" % (uuid, hosts)
+ elif confirmedHosts != hosts:
+ result += "Entry %s hostlist mismatch (%s vs. %s).\n" % (uuid, hosts, confirmedHosts)
+ elif make_passwd_hmac('confirm-new-password', 'sudo', uid, uuid, hosts, cryptedpass) == confirmedHmac:
+ result += "Entry %s for sudo password on hosts %s now confirmed.\n" % (uuid, hosts)
+ status = 'confirmed:' + make_passwd_hmac('password-is-confirmed', 'sudo', uid, uuid, hosts, cryptedpass)
+ else:
+ result += "Entry %s for sudo password on hosts %s HMAC verify failed.\n" % (uuid, hosts)
+ del SudoPasswd[uuid]
+
+ newentry = " ".join([uuid, status, hosts, cryptedpass])
+ if len(newldap) == 0:
+ newldap.append((ldap.MOD_REPLACE, "sudoPassword", newentry))
+ else:
+ newldap.append((ldap.MOD_ADD, "sudoPassword", newentry))
+
+ for entry in SudoPasswd:
+ result += "Entry %s that you confirm is not listed in ldap." % (entry,)
+
+ for entry in newldap:
+ Attrs.append(entry)
+
+ return result
+
+
+def connect_to_ldap_and_check_if_locked(DnRecord):
+ # Connect to the ldap server
+ lc = connectLDAP()
+ F = open(PassDir + "/pass-" + pwd.getpwuid(os.getuid())[0], "r")
+ AccessPass = F.readline().strip().split(" ")
+ F.close()
+ lc.simple_bind_s("uid={},{}".format(AccessPass[0], BaseDn), AccessPass[1])
+
+ # Check for a locked account
+ Attrs = lc.search_s(BaseDn, ldap.SCOPE_ONELEVEL, "uid=" + GetAttr(DnRecord, "uid"))
+ if (GetAttr(Attrs[0], "userPassword").find("*LK*") != -1) \
+ or GetAttr(Attrs[0], "userPassword").startswith("!"):
+ raise UDNotAllowedError("This account is locked")
+ return lc
+
+
+# Handle an [almost] arbitary change
+def HandleChange(Reply, DnRecord, Key):
+ global PlainText
+ Lines = re.split("\n *\r?", PlainText)
+
+ Result = ""
+ Attrs = []
+ SudoPasswd = {}
+ Show = 0
+ CommitChanges = 1
+ for Line in Lines:
+ Line = Line.strip()
+ if Line == "":
+ continue
+
+ # Try to process a command line
+ Result += "> " + Line + "\n"
+ try:
+ if Line == "show":
+ Show = 1
+ Res = "OK"
+ else:
+ badkeys = LoadBadSSH()
+ Res = DoPosition(Line, Attrs) or DoDNS(Line, Attrs, DnRecord) or \
+ DoArbChange(Line, Attrs) or DoSSH(Line, Attrs, badkeys, GetAttr(DnRecord, "uid")) or \
+ DoDel(Line, Attrs) or DoRBL(Line, Attrs) or DoConfirmSudopassword(Line, SudoPasswd)
+ except Exception:
+ Res = None
+ Result += "==> %s: %s\n" % (sys.exc_type, sys.exc_value)
+
+ # Fail, if someone tries to send someone elses signed email to the
+ # daemon then we want to abort ASAP.
+ if Res is None:
+ CommitChanges = 0
+ Result = Result + "Command is not understood. Halted - no changes committed\n"
+ break
+ Result += Res + "\n"
+
+ # Connect to the ldap server
+ lc = connect_to_ldap_and_check_if_locked(DnRecord)
+
+ if CommitChanges == 1 and len(SudoPasswd) > 0: # only if we are still good to go
+ try:
+ Res = FinishConfirmSudopassword(lc, GetAttr(DnRecord, "uid"), Attrs, SudoPasswd)
+ if Res is not None:
+ Result += Res + "\n"
+ except Error, e:
+ CommitChanges = 0
+ Result = Result + "FinishConfirmSudopassword raised an error (%s) - no changes committed\n" % (e)
+
+ if CommitChanges == 1 and len(Attrs) > 0:
+ Dn = "uid=" + GetAttr(DnRecord, "uid") + "," + BaseDn
+ lc.modify_s(Dn, Attrs)
+
+ Attribs = ""
+ if Show == 1:
+ Attrs = lc.search_s(BaseDn, ldap.SCOPE_ONELEVEL, "uid=" + GetAttr(DnRecord, "uid"))
+ if len(Attrs) == 0:
+ raise UDNotAllowedError("User not found")
+ Attribs = GPGEncrypt(PrettyShow(Attrs[0]) + "\n", "0x" + Key[1], Key[4])
+
+ Subst = {}
+ Subst["__FROM__"] = ChangeFrom
+ Subst["__EMAIL__"] = EmailAddress(DnRecord)
+ Subst["__ADMIN__"] = ReplyTo
+ Subst["__RESULT__"] = Result
+ Subst["__ATTR__"] = Attribs
+
+ return Reply + TemplateSubst(Subst, open(TemplatesDir + "change-reply", "r").read())