The HTTP Pragma header is obsolete for HTTP 1.1,
and technically only defined for a HTTP request (not response).
Refer to https://www.mnot.net/cache_docs/#PRAGMA
,http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.32.
It is superseded by the "Cache-Control" directive.
See HTTP 1.1 spec at https://tools.ietf.org/html/rfc7234#section-5.4:
'Because the meaning of "Pragma: no-cache" in responses is
not specified, it does not provide a reliable replacement for
"Cache-Control: no-cache" in them.'
Sending a "Pragma: nocache" response header is a prudent
backwards compatibility measure for HTTP 1.0 clients.
The intended behaviour is for the majority clients as well as any
intermediary proxies to ignore this header.
Sending an empty Pragma is a known hack
for preventing PHP from adding "Pragma: nocache" to responses
with started sessions (see http://php.net/session_cache_limiter),
since PHP does not allow unsetting existing header() calls.
In some cases, a request may not have an HTTP_USER_AGENT. This should
check the variable exists before attempting to check it. The specific
case where it failed for me was Active Directory Federation Services
sending a web request to a SilverStripe site, but failing because it
doesn't have an agent string.
Example: you have a site in a sub-directory off the webroot, you call
->Link() on a SiteTree record, which returns "/[sitedir]/my-page", and
you pass this URL to Director::test(). It's a valid URL, but
Director::test() will throw a 404.
Director::test() should be ensuring that all URLs passed to it are
properly made relative, not just in the case where it thinks the URL
is absolute.
Provides an interface for classes to implement their own flush()
functionality. This function gets called early in a request on
all implementations of Flushable when flush=1|all is requested in the
URL.
This fix came out of an issue where Requirements combined files were not
being cleaned up after dev/build?flush=1, due to the fact that flush
would only occur when you called it while on a page that used those
combined files, but not in any other contexts. This will now call flush
on any implementors of Flushable regardless of the context of where
flush was called.
This was originally added to stop PHP on Windows complaining that it
couldn't garbage collect old sessions, but that was for an old version
of PHP years ago and doesn't seem to be an issue any longer. We
really shouldn't be suppressing this. If session_start() threw a
warning that it couldn't write to the filesystem, then we wouldn't
know about it at all.
- Updated AspectProxyService to handle multiple handlers for each proxied
object's methods.
- Changed BeforeCallAspect to allow for providing a return value that
should be returned to the caller instead of the proxied return value
- Changed AfterCallAspect behaviour to allow for returning the value of
the aspect to the caller instead of the proxied return value
When the email sender makes the links absolute, it can't handle empty `href` or `src` attributes as there's no expectation that the string length could be 0
Move functionality from static start and destroy functions into instance
methods, allowing these to be overloaded. This works the same way as
calling Session::set() which then in turn calls inst_set()
Additionally use Injector to create the default Session instance to
allow the class to be swapped out.
BUG Disabled disruptive test case in DirectorTest
API RequestProcessor and VersionedRequestFilter now both correctly implement RequestFilter
Better PHPDoc on RequestFilter and implementations
BUG Resolve issue with DirectorTest breaking RequestProcessor
Injector::nest and Injector::unnest are introduced to better support sandboxing of testings.
Injector and Config ::nest and ::unnest support chaining
Test cases for both Injector::nest and Config::nest
SS_HTTPRequest can be read like an array, e.g. echo $request['a'], but cannot be written like an array, e.g. $request['a'] = 5; Added comment to caution people.
See line 375:
==================================================================
/**
* @ignore
*/
public function offsetSet($offset, $value) {}
/**
* @ignore
*/
public function offsetUnset($offset) {}
==================================================================
Might be good to write something about how you are supposed to modify a request, or what you are supposed to do instead (a redirect?).
