From: "John M. Dlugosz" <wxju46g...@snkmail.com>
On 3/15/2011 1:38 AM, Octavian Rasnita orasnita-at-gmail.com
|Catalyst/Allow to home| wrote:
uri_for() escapes each component, but I guess that it doesn't escape it
if it contains a slash in it.
For example, you can do:
<img src="[% c.uri_for('/static', 'ham and eggs.jpg').path %]">
It will print:
<img src="/static/ham%20and%20eggs.jpg">
Octavian
I see... it wants you to pass separate arguments rather than building the
path first.
It just gets the path and the list of arguments, but it escapes the special
characters only in the arguments, not the path.
I was thinking that uri_for might be more trouble than it's worth since I
don't like fully-qualified URLs in my generated source anyway. But if it
escapes (sometimes?) then that is indeed more helpful.
You don't need to use fully-qualified URLS if you don't like, even though it
doesn't matter because they are dynamicly generated anyway.
uri_for() returns a URI object, so you can use:
c.uri_for(...).path
This will return only the path, without the scheme, host and port.
or:
c.uri_for(...).path_query
...if the URL also contains a query string (?a=b&c=d)
<img src="[% c.uri_for("/static/gallery",rec.dirname,rec.filename) %]"
alt="photo" />
That works (using Smart_URI settings to leave off the host). But it did
not escape out the '&' in the filename! Is that a bug? I notice you
changes my example from '&' to 'and' -- that's cheating!
:-)
<img src="[% "/static/gallery/${rec.dirname}/${ rec.filename | uri }" %]"
alt="photo" />
gives the correct answer: ham%20%26%20eggs.jpeg
uri_for() escapes only the chars which are not in the following list (from
URI.pm):
$reserved = q(;/?:@&=+$,[]);
$mark = q(-_.!~*'()); #'; emacs
$unreserved = "A-Za-z0-9\Q$mark\E";
The char "&" is a valid char in the URI, so it should not be escaped.. With
other words, the following url is OK:
http://localhost/dir1/dir2/ham%20&%20eggs.jpg
uri_for() generates the URI as it needs to be accessed on the server and not
as it should be printed in an HTML page. In order to be printed correctly,
the "&" char must be HTML-encoded, so the html TT filter must be used:
<a href="[% c.uri_for('/path', 'eggs & ham.jpg', {a=1, b=2}).path_query |
html%]">label</a>
It will give:
<a href="/path/eggs%20&%20ham.jpg?a=1&b=2">label</a>
Octavian
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