mirror of https://github.com/morpheus65535/bazarr
134 lines
4.7 KiB
Python
134 lines
4.7 KiB
Python
"""When it comes to combining multiple controller or view functions
|
|
(however you want to call them) you need a dispatcher. A simple way
|
|
would be applying regular expression tests on the ``PATH_INFO`` and
|
|
calling registered callback functions that return the value then.
|
|
|
|
This module implements a much more powerful system than simple regular
|
|
expression matching because it can also convert values in the URLs and
|
|
build URLs.
|
|
|
|
Here a simple example that creates a URL map for an application with
|
|
two subdomains (www and kb) and some URL rules:
|
|
|
|
.. code-block:: python
|
|
|
|
m = Map([
|
|
# Static URLs
|
|
Rule('/', endpoint='static/index'),
|
|
Rule('/about', endpoint='static/about'),
|
|
Rule('/help', endpoint='static/help'),
|
|
# Knowledge Base
|
|
Subdomain('kb', [
|
|
Rule('/', endpoint='kb/index'),
|
|
Rule('/browse/', endpoint='kb/browse'),
|
|
Rule('/browse/<int:id>/', endpoint='kb/browse'),
|
|
Rule('/browse/<int:id>/<int:page>', endpoint='kb/browse')
|
|
])
|
|
], default_subdomain='www')
|
|
|
|
If the application doesn't use subdomains it's perfectly fine to not set
|
|
the default subdomain and not use the `Subdomain` rule factory. The
|
|
endpoint in the rules can be anything, for example import paths or
|
|
unique identifiers. The WSGI application can use those endpoints to get the
|
|
handler for that URL. It doesn't have to be a string at all but it's
|
|
recommended.
|
|
|
|
Now it's possible to create a URL adapter for one of the subdomains and
|
|
build URLs:
|
|
|
|
.. code-block:: python
|
|
|
|
c = m.bind('example.com')
|
|
|
|
c.build("kb/browse", dict(id=42))
|
|
'http://kb.example.com/browse/42/'
|
|
|
|
c.build("kb/browse", dict())
|
|
'http://kb.example.com/browse/'
|
|
|
|
c.build("kb/browse", dict(id=42, page=3))
|
|
'http://kb.example.com/browse/42/3'
|
|
|
|
c.build("static/about")
|
|
'/about'
|
|
|
|
c.build("static/index", force_external=True)
|
|
'http://www.example.com/'
|
|
|
|
c = m.bind('example.com', subdomain='kb')
|
|
|
|
c.build("static/about")
|
|
'http://www.example.com/about'
|
|
|
|
The first argument to bind is the server name *without* the subdomain.
|
|
Per default it will assume that the script is mounted on the root, but
|
|
often that's not the case so you can provide the real mount point as
|
|
second argument:
|
|
|
|
.. code-block:: python
|
|
|
|
c = m.bind('example.com', '/applications/example')
|
|
|
|
The third argument can be the subdomain, if not given the default
|
|
subdomain is used. For more details about binding have a look at the
|
|
documentation of the `MapAdapter`.
|
|
|
|
And here is how you can match URLs:
|
|
|
|
.. code-block:: python
|
|
|
|
c = m.bind('example.com')
|
|
|
|
c.match("/")
|
|
('static/index', {})
|
|
|
|
c.match("/about")
|
|
('static/about', {})
|
|
|
|
c = m.bind('example.com', '/', 'kb')
|
|
|
|
c.match("/")
|
|
('kb/index', {})
|
|
|
|
c.match("/browse/42/23")
|
|
('kb/browse', {'id': 42, 'page': 23})
|
|
|
|
If matching fails you get a ``NotFound`` exception, if the rule thinks
|
|
it's a good idea to redirect (for example because the URL was defined
|
|
to have a slash at the end but the request was missing that slash) it
|
|
will raise a ``RequestRedirect`` exception. Both are subclasses of
|
|
``HTTPException`` so you can use those errors as responses in the
|
|
application.
|
|
|
|
If matching succeeded but the URL rule was incompatible to the given
|
|
method (for example there were only rules for ``GET`` and ``HEAD`` but
|
|
routing tried to match a ``POST`` request) a ``MethodNotAllowed``
|
|
exception is raised.
|
|
"""
|
|
from .converters import AnyConverter as AnyConverter
|
|
from .converters import BaseConverter as BaseConverter
|
|
from .converters import FloatConverter as FloatConverter
|
|
from .converters import IntegerConverter as IntegerConverter
|
|
from .converters import PathConverter as PathConverter
|
|
from .converters import UnicodeConverter as UnicodeConverter
|
|
from .converters import UUIDConverter as UUIDConverter
|
|
from .converters import ValidationError as ValidationError
|
|
from .exceptions import BuildError as BuildError
|
|
from .exceptions import NoMatch as NoMatch
|
|
from .exceptions import RequestAliasRedirect as RequestAliasRedirect
|
|
from .exceptions import RequestPath as RequestPath
|
|
from .exceptions import RequestRedirect as RequestRedirect
|
|
from .exceptions import RoutingException as RoutingException
|
|
from .exceptions import WebsocketMismatch as WebsocketMismatch
|
|
from .map import Map as Map
|
|
from .map import MapAdapter as MapAdapter
|
|
from .matcher import StateMachineMatcher as StateMachineMatcher
|
|
from .rules import EndpointPrefix as EndpointPrefix
|
|
from .rules import parse_converter_args as parse_converter_args
|
|
from .rules import Rule as Rule
|
|
from .rules import RuleFactory as RuleFactory
|
|
from .rules import RuleTemplate as RuleTemplate
|
|
from .rules import RuleTemplateFactory as RuleTemplateFactory
|
|
from .rules import Subdomain as Subdomain
|
|
from .rules import Submount as Submount
|