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tiramisu/doc/options.md

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Default Options

Basic options

Textual option: StrOption

Option that accept any textual data in Tiramisu:

from tiramisu import StrOption
StrOption('str', 'str', 'value')
StrOption('str', 'str', '1')

Other type generate an error:

try:
    StrOption('str', 'str', 1)
except ValueError as err:
    print(err)

returns:

"1" is an invalid string for "str"

Integers option: IntOption

Option that accept any integers number in Tiramisu:

from tiramisu import IntOption
IntOption('int', 'int', 1)

min_number and max_number

This option can also verify minimal and maximal number:

IntOption('int', 'int', 10, min_number=10, max_number=15)

try:
    IntOption('int', 'int', 16, max_number=15)
except ValueError as err:
    print(err)

returns:

"16" is an invalid integer for "int", value must be less than "15"

NOTE: If "warnings_only" parameter it set to True, it will only emit a warning.

Floating point number option: FloatOption

Option that accept any floating point number in Tiramisu:

from tiramisu import FloatOption
FloatOption('float', 'float', 10.1)

Boolean option: BoolOption

Boolean values are the two constant objects False and True:

from tiramisu import BoolOption 
BoolOption('bool', 'bool', True)
BoolOption('bool', 'bool', False)

Choice option: ChoiceOption

Option that only accepts a list of possible choices.

For example, we just want allowed 1 or 'see later':

from tiramisu import ChoiceOption
ChoiceOption('choice', 'choice', (1, 'see later'), 1)
ChoiceOption('choice', 'choice', (1, 'see later'), 'see later')

Any other value isn't allowed:

try:
    ChoiceOption('choice', 'choice', (1, 'see later'), "i don't know")
except ValueError as err:
    print(err)

returns:

"i don't know" is an invalid choice for "choice", only "1" and "see later" are allowed

Network options

IPv4 address option: IPOption

An Internet Protocol address (IP address) is a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication.

This option only support version 4 of the Internet Protocol.

from tiramisu import IPOption
IPOption('ip', 'ip', '192.168.0.24')

private_only

By default IP could be a private or a public address. It's possible to restrict to only private IPv4 address with "private_only" attributs:

try:
    IPOption('ip', 'ip', '1.1.1.1', private_only=True)
except ValueError as err:
    print(err)

returns:

"1.1.1.1" is an invalid IP for "ip", must be private IP

NOTE: If "warnings_only" parameter it set to True, it will only emit a warning.

allow_reserved

By default, IETF reserved are not allowed. The "allow_reserved" can be used to allow this address:

try:
    IPOption('ip', 'ip', '255.255.255.255')
except ValueError as err:
    print(err)

returns:

"255.255.255.255" is an invalid IP for "ip", mustn't be reserved IP

But this doesn't raises:

IPOption('ip', 'ip', '255.255.255.255', allow_reserved=True)

NOTE: If "warnings_only" parameter it set to True, it will only emit a warning.

cidr

Classless Inter-Domain Routing (CIDR) is a method for allocating IP addresses and IP routing.

CIDR notation, in which an address or routing prefix is written with a suffix indicating the number of bits of the prefix, such as 192.168.0.1/24.

IPOption('ip', 'ip', '192.168.0.1/24', cidr=True)
try:
    IPOption('ip', 'ip', '192.168.0.0/24', cidr=True)
except ValueError as err:
    print(err)

returns:

"192.168.0.0/24" is an invalid IP for "ip", it's in fact a network address

Port option: PortOption

A port is a network communication endpoint.

A port is a string object:

from tiramisu import PortOption
PortOption('port', 'port', '80')

allow_range

A range is a list of port where we specified first port and last port number. The separator is ":":

PortOption('port', 'port', '2000', allow_range=True)
PortOption('port', 'port', '2000:3000', allow_range=True)

allow_zero

By default, port 0 is not allowed, if you want allow it, use the parameter "allow_zero":

try:
    PortOption('port', 'port', '0')
except ValueError as err:
    print(err)

returns:

"0" is an invalid port for "port", must be between 1 and 49151

But this doesn't raises:

PortOption('port', 'port', '0', allow_zero=True)

NOTE: This option affect the minimal and maximal port number, if "warnings_only" parameter it set to True, it will only emit a warning.

allow_wellknown

The well-known ports (also known as system ports) are those from 1 through 1023. This parameter is set to True by default:

PortOption('port', 'port', '80')

try:
    PortOption('port', 'port', '80', allow_wellknown=False)
except ValueError as err:
    print(err)

returns:

"80" is an invalid port for "port", must be between 1024 and 49151

NOTE: This option affect the minimal and maximal port number, if "warnings_only" parameter it set to True, it will only emit a warning.

allow_registred

The registered ports are those from 1024 through 49151. This parameter is set to True by default:

PortOption('port', 'port', '1300')

try:
    PortOption('port', 'port', '1300', allow_registred=False)
except ValueError as err:
    print(err)

returns:

"1300" is an invalid port for "port", must be between 1 and 1023

NOTE: This option affect the minimal and maximal port number, if "warnings_only" parameter it set to True, it will only emit a warning.

allow_protocol

PortOption('port', 'port', '1300', allow_protocol="True")
PortOption('port', 'port', 'tcp:1300', allow_protocol="True")
PortOption('port', 'port', 'udp:1300', allow_protocol="True")

allow_private

The dynamic or private ports are those from 49152 through 65535. One common use for this range is for ephemeral ports. This parameter is set to False by default:

try:
    PortOption('port', 'port', '64000')
except ValueError as err:
    print(err)

returns:

"64000" is an invalid port for "port", must be between 1 and 49151

PortOption('port', 'port', '64000', allow_private=True)

NOTE: This option affect the minimal and maximal port number, if "warnings_only" parameter it set to True, it will only emit a warning.

Subnetwork option: NetworkOption

IP networks may be divided into subnetworks:

from tiramisu import NetworkOption
NetworkOption('net', 'net', '192.168.0.0')

cidr

Classless Inter-Domain Routing (CIDR) is a method for allocating IP addresses and IP routing.

CIDR notation, in which an address or routing prefix is written with a suffix indicating the number of bits of the prefix, such as 192.168.0.0/24:

NetworkOption('net', 'net', '192.168.0.0/24', cidr=True)

Subnetwork mask option: NetmaskOption

For IPv4, a network may also be characterized by its subnet mask or netmask. This option allow you to enter a netmask:

from tiramisu import NetmaskOption
NetmaskOption('mask', 'mask', '255.255.255.0')

Broadcast option: BroadcastOption

The last address within a network broadcast transmission to all hosts on the link. This option allow you to enter a broadcast:

from tiramisu import BroadcastOption
BroadcastOption('bcast', 'bcast', '192.168.0.254')

Internet options

Domain name option: DomainnameOption

Domain names are used in various networking contexts and for application-specific naming and addressing purposes. The DomainnameOption allow different type of domain name:

from tiramisu import DomainnameOption
DomainnameOption('domain', 'domain', 'foo.example.net')
DomainnameOption('domain', 'domain', 'foo', type='hostname')

type

There is three type for a domain name:

  • "domainname" (default): lowercase, number, "-" and "." characters are allowed, this must have at least one "."
  • "hostname": lowercase, number and "-" characters are allowed, the maximum length is 63 characters
  • "netbios": lowercase, number and "-" characters are allowed, the maximum length is 15 characters

NOTE: If "warnings_only" parameter it set to True, it will raise if length is incorrect by only emit a warning character is not correct.

allow_ip

If the option can contain a domain name or an IP, you can set the "allow_ip" to True, (False by default):

DomainnameOption('domain', 'domain', 'foo.example.net', allow_ip=True)
DomainnameOption('domain', 'domain', '192.168.0.1', allow_ip=True)

In this case, IP is validate has IPOption would do.

allow_cidr_network

If the option can contain a CIDR network, you can set "allow_cidr_network" to True, (False by default):

DomainnameOption('domain', 'domain', 'foo.example.net', allow_cidr_network=True)
DomainnameOption('domain', 'domain', '192.168.0.0/24', allow_cidr_network=True)

allow_without_dot

A domain name with domainname's type must have a dot. If "allow_without_dot" is True (False by default), we can set a domainname or an hostname:

DomainnameOption('domain', 'domain', 'foo.example.net', allow_without_dot=True)
DomainnameOption('domain', 'domain', 'foo', allow_without_dot=True)

allow_startswith_dot

A domain name with domainname's type mustn't start by a dot. .example.net is not a valid domain. In some case it could be interesting to allow domain name starts by a dot (for ACL in Squid, no proxy option in Firefox, ...):

DomainnameOption('domain', 'domain', 'example.net', allow_startswith_dot=True)
DomainnameOption('domain', 'domain', '.example.net', allow_startswith_dot=True)

MAC address option: MACOption

Validate MAC address:

from tiramisu import MACOption
MACOption('mac', 'mac', '01:10:20:20:10:30')

Uniform Resource Locator option: UrlOption

An Uniform Resource Locator is, in fact, a string starting with http:// or https://, a DomainnameOption, optionaly ':' and a PortOption, and finally filename:

from tiramisu import URLOption
URLOption('url', 'url', 'http://foo.example.fr/index.php')
URLOption('url', 'url', 'https://foo.example.fr:4200/index.php?login=foo&pass=bar')

For parameters, see PortOption and DomainnameOption.

Email address option: EmailOption

Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Here an example:

from tiramisu import EmailOption
EmailOption('mail', 'mail', 'foo@example.net')

Unix options

Unix username: UsernameOption

An unix username option is a 32 characters maximum length with lowercase ASCII characters, number, '' or '-'. The username have to start with lowercase ASCII characters or "":

from tiramisu import UsernameOption
UsernameOption('user', 'user', 'my_user')

Unix groupname: GroupnameOption

Same condition for unix group name:

from tiramisu import GroupnameOption
GroupnameOption('group', 'group', 'my_group')

Password option: PasswordOption

Simple string with no other restriction:

from tiramisu import PasswordOption
PasswordOption('pass', 'pass', 'oP$¨1jiJie')

Unix filename option: FilenameOption

For this option, only lowercase and uppercas ASCII character, "-", ".", "_", "~", and "/" are allowed:

from tiramisu import FilenameOption
FilenameOption('file', 'file', '/etc/tiramisu/tiramisu.conf')

Unix file permissions: PermissionsOption

Valid the representing Unix permissions is an octal (base-8) notation.

from tiramisu import PermissionsOption
PermissionsOption('perms', 'perms', 755)
PermissionsOption('perms', 'perms', 1755)

This option doesn't allow (or display a warning with warnings_only):

  • 777 (two weak value)
  • others have more right than group
  • group has more right than user

Date option

Date option: DateOption

Date option waits for a date with format YYYY-MM-DD:

from tiramisu import DateOption
DateOption('date', 'date', '2019-10-30')