| Home | Trees | Indices | Help |
|
|---|
|
|
object --+
|
Validator --+
|
IS_GENERIC_URL
Rejects a URL string if any of the following is true:
* The string is empty or None
* The string uses characters that are not allowed in a URL
* The URL scheme specified (if one is specified) is not valid
Based on RFC 2396: http://www.faqs.org/rfcs/rfc2396.html
This function only checks the URL's syntax. It does not check that the URL
points to a real document, for example, or that it otherwise makes sense
semantically. This function does automatically prepend 'http://' in front
of a URL if and only if that's necessary to successfully parse the URL.
Please note that a scheme will be prepended only for rare cases
(e.g. 'google.ca:80')
The list of allowed schemes is customizable with the allowed_schemes
parameter. If you exclude None from the list, then abbreviated URLs
(lacking a scheme such as 'http') will be rejected.
The default prepended scheme is customizable with the prepend_scheme
parameter. If you set prepend_scheme to None then prepending will be
disabled. URLs that require prepending to parse will still be accepted,
but the return value will not be modified.
@author: Jonathan Benn
>>> IS_GENERIC_URL()('http://user@abc.com')
('http://user@abc.com', None)
|
|||
|
|||
|
|||
|
Inherited from Inherited from |
|||
|
|||
|
Inherited from |
|||
|
|||
:param error_message: a string, the error message to give the end user
if the URL does not validate
:param allowed_schemes: a list containing strings or None. Each element
is a scheme the inputed URL is allowed to use
:param prepend_scheme: a string, this scheme is prepended if it's
necessary to make the URL valid
|
:param value: a string, the URL to validate
:returns: a tuple, where tuple[0] is the inputed value (possible
prepended with prepend_scheme), and tuple[1] is either
None (success!) or the string error_message
|
| Home | Trees | Indices | Help |
|
|---|
| Generated by Epydoc 3.0beta1 on Sun Mar 4 22:11:59 2012 | http://epydoc.sourceforge.net |