werkzeug.sansio.utils

def get_current_url(scheme, host, root_path=None, path=None, query_string=None):

Recreate the URL for a request. If an optional part isn't provided, it and subsequent parts are not included in the URL.

The URL is an IRI, not a URI, so it may contain Unicode characters. Use ~werkzeug.urls.iri_to_uri to convert it to ASCII.

Parameters
scheme:`str`	The protocol the request used, like `"https"`.
host:`str`	The host the request was made to. See `get_host`.
root_path:`t.Optional[str]`	Prefix that the application is mounted under. This is prepended to `path`.
path:`t.Optional[str]`	The path part of the URL after `root_path`.
query_string:`t.Optional[bytes]`	The portion of the URL after the "?".
Returns
`str`	Undocumented

def get_host(scheme, host_header, server=None, trusted_hosts=None):

Return the host for the given parameters.

This first checks the host_header. If it's not present, then server is used. The host will only contain the port if it is different than the standard port for the protocol.

Optionally, verify that the host is trusted using host_is_trusted and raise a ~werkzeug.exceptions.SecurityError if it is not.

Parameters
scheme:`str`	The protocol the request used, like `"https"`.
host_header:`t.Optional[str]`	The `Host` header value.
server:`t.Optional[t.Tuple[str, t.Optional[int]]]`	Address of the server. `(host, port)`, or `(path, None)` for unix sockets.
trusted_hosts:`t.Optional[t.Iterable[str]]`	A list of trusted host names.
Returns
`str`	Host, with port if necessary.
Raises
`~werkzeug.exceptions.SecurityError`	If the host is not trusted.

def host_is_trusted(hostname, trusted_list):

Check if a host matches a list of trusted names.

New in version 0.9.

Parameters
hostname:`str`	The name to check.
trusted_list:`t.Iterable[str]`	A list of valid names to match. If a name starts with a dot it will match all subdomains.
Returns
`bool`	Undocumented

Function	`get_current_url`	Recreate the URL for a request. If an optional part isn't provided, it and subsequent parts are not included in the URL.
Function	`get_host`	Return the host for the given parameters.
Function	`host_is_trusted`	Check if a host matches a list of trusted names.