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WP Plugins
Redis Page Cache
Commits
0ca5e34c
Commit
0ca5e34c
authored
Feb 26, 2014
by
Erick Hitter
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Plain Diff
PHPDoc and some simplification of the URL cleaner
parent
6aec566c
Changes
1
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1 changed file
with
47 additions
and
3 deletions
+47
-3
index-wp-redis.php
index-wp-redis.php
+47
-3
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index-wp-redis.php
View file @
0ca5e34c
...
...
@@ -26,6 +26,8 @@ function wp_redis_cache_exception_handler( $exception ) {
}
/**
* END GLOBAL CONFIGURATION
*
* DO NOT EDIT BELOW THIS LINE!
*/
$GLOBALS
[
'wp_redis_cache_config'
][
'current_url'
]
=
wp_redis_cache_get_clean_url
(
$GLOBALS
[
'wp_redis_cache_config'
][
'secret_string'
]
);
...
...
@@ -34,19 +36,43 @@ $GLOBALS['wp_redis_cache_config']['redis_key'] = md5( $GLOBALS['wp_redis_cache
// Start the timer so we can track the page load time
$start
=
microtime
();
/**
* UTILITY FUNCTIONS
*/
/**
* Compute microtime from a timestamp
*
* @return float
*/
function
wp_redis_cache_get_micro_time
(
$time
)
{
list
(
$usec
,
$sec
)
=
explode
(
" "
,
$time
);
return
(
(
float
)
$usec
+
(
float
)
$sec
);
}
/**
* Is the current request a refresh request with the correct secret key?
*
* @return bool
*/
function
wp_redis_cache_refresh_has_secret
(
$secret
)
{
return
isset
(
$_GET
[
'refresh'
]
)
&&
$secret
==
$_GET
[
'refresh'
];
}
/**
* Does current request include a refresh request?
*
* @return bool
*/
function
wp_redis_cache_request_has_secret
(
$secret
)
{
return
false
!==
strpos
(
$_SERVER
[
'REQUEST_URI'
],
"refresh=${secret}"
);
}
/**
* Determine if request is from a server other than the one running this code
*
* @return bool
*/
function
wp_redis_cache_is_remote_page_load
(
$current_url
,
$server_ip
)
{
return
(
isset
(
$_SERVER
[
'HTTP_REFERER'
]
)
&&
$_SERVER
[
'HTTP_REFERER'
]
==
$current_url
...
...
@@ -54,6 +80,11 @@ function wp_redis_cache_is_remote_page_load( $current_url, $server_ip ) {
&&
$_SERVER
[
'REMOTE_ADDR'
]
!=
$server_ip
);
}
/**
* Set proper IP address for proxied requests
*
* @return null
*/
function
wp_redis_cache_handle_cdn_remote_addressing
()
{
// so we don't confuse the cloudflare server
if
(
isset
(
$_SERVER
[
'HTTP_CF_CONNECTING_IP'
]
)
)
{
...
...
@@ -61,15 +92,28 @@ function wp_redis_cache_handle_cdn_remote_addressing() {
}
}
/**
* Prepare a URL for use as a cache key
*
* Strips secret key from URL
*
* @param string
* @return string
*/
function
wp_redis_cache_get_clean_url
(
$secret
)
{
$replace_keys
=
array
(
"?refresh=${secret}"
,
"&refresh=${secret}"
);
$url
=
"http://${_SERVER['HTTP_HOST']}${_SERVER['REQUEST_URI']}"
;
$current_url
=
str_replace
(
$replace_keys
,
''
,
$url
);
return
$current_url
;
$url
=
'http://'
.
$_SERVER
[
'HTTP_HOST'
]
.
$_SERVER
[
'REQUEST_URI'
];
return
str_replace
(
$replace_keys
,
''
,
$url
);
}
/**
* BEGIN CACHING LOGIC
*/
// Set proper IP for proxied requests
wp_redis_cache_handle_cdn_remote_addressing
();
// Ensure WP uses a theme (this is normally set in index.php)
if
(
!
defined
(
'WP_USE_THEMES'
)
)
{
define
(
'WP_USE_THEMES'
,
true
);
}
...
...
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