def drupal_page_header():
"""
Set HTTP headers in preparation for a page response.
Authenticated users are always given a 'no-cache' php.header, and will
fetch a fresh page on every request. This prevents authenticated
users seeing locally cached pages that show them as logged out.
@see page_set_cache()
"""
php.header("Expires: Sun, 19 Nov 1978 05:00:00 GMT")
php.header("Last-Modified: " + php.gmdate("%D, %d %M %Y %H:%i:%s") + " GMT")
php.header("Cache-Control: store, no-cache, must-revalidate")
php.header("Cache-Control: post-check=0, pre-check=0", False)
def drupal_page_header():
"""
Set HTTP headers in preparation for a page response.
Authenticated users are always given a 'no-cache' php.header, and will
fetch a fresh page on every request. This prevents authenticated
users seeing locally cached pages that show them as logged out.
@see page_set_cache()
"""
php.header("Expires: Sun, 19 Nov 1978 05:00:00 GMT")
php.header("Last-Modified: " + php.gmdate("%D, %d %M %Y %H:%i:%s") +
" GMT")
php.header("Cache-Control: store, no-cache, must-revalidate")
php.header("Cache-Control: post-check=0, pre-check=0", False)
def _drupal_bootstrap(phase):
if phase == DRUPAL_BOOTSTRAP_CONFIGURATION:
drupal_initialize_variables()
# Start a page timer:
timer_start('page')
# Initialize the configuration
conf_init()
elif phase == DRUPAL_BOOTSTRAP_EARLY_PAGE_CACHE:
# Allow specifying special cache handlers in settings.php, like
# using memcached or files for storing cache information.
# If the page_cache_fastpath is set to TRUE in settings.php and
# page_cache_fastpath (implemented in the special implementation of
# cache.inc) printed the page and indicated this with a returned TRUE
# then we are done.
if (variable_get('page_cache_fastpath', False)
and page_cache_fastpath()):
exit()
elif phase == DRUPAL_BOOTSTRAP_DATABASE:
# Initialize the database system. Note that the connection
# won't be initialized until it is actually requested.
# ! do nothing !
# Register autoload functions so that we can access classes and interfaces.
# spl_autoload_register('drupal_autoload_class')
# spl_autoload_register('drupal_autoload_interface')
pass
elif phase == DRUPAL_BOOTSTRAP_ACCESS:
# Deny access to blocked IP addresses - t() is not yet available
if (drupal_is_denied(ip_address())):
php.header(php.SERVER['SERVER_PROTOCOL'] + ' 403 Forbidden')
print 'Sorry, ' + check_plain(ip_address()) + ' has been banned.'
exit()
elif phase == DRUPAL_BOOTSTRAP_SESSION:
php.session_set_save_handler('_sess_open', '_sess_close', '_sess_read', \
'_sess_write', '_sess_destroy_sid', '_sess_gc')
php.session_start()
elif phase == DRUPAL_BOOTSTRAP_LATE_PAGE_CACHE:
# Initialize configuration variables, using values from settings.php
# if available.
settings.conf = variable_init( ({} if (settings.conf == None) else \
settings.conf) )
# Load plugin handling.
cache_mode = variable_get('cache', CACHE_DISABLED)
# Get the page from the cache.
cache = ('' if (cache_mode == CACHE_DISABLED) else page_get_cache())
# If the skipping of the bootstrap hooks is not enforced, call hook_boot.
if (cache_mode != CACHE_AGGRESSIVE):
invoke_all('boot')
# If there is a cached page, display it.
if (cache):
drupal_page_cache_header(cache)
# If the skipping of the bootstrap hooks is not enforced, call hook_exit.
if (cache_mode != CACHE_AGGRESSIVE):
bootstrap_invoke_all('exit')
# We are done.
exit()
# Prepare for non-cached page workflow.
drupal_page_header()
elif phase == DRUPAL_BOOTSTRAP_LANGUAGE:
drupal_init_language()
elif phase == DRUPAL_BOOTSTRAP_PATH:
# Initialize php.GET['q'] prior to loading plugins and invoking hook_init().
#lib_path.drupal_init_path();
pass
elif phase == DRUPAL_BOOTSTRAP_FULL:
lib_common._drupal_bootstrap_full()
def drupal_page_cache_header(cache):
"""
Set HTTP headers in preparation for a cached page response.
The general approach here is that anonymous users can keep a local
cache of the page, but must revalidate it on every request. Then,
they are given a '304 Not Modified' response as long as they stay
logged out and the page has not been modified.
"""
# Set default values:
last_modified = php.gmdate('D, d M Y H:i:s', cache.created) + ' GMT'
etag = '"' + drupy_md5(last_modified) + '"'
# See if the client has provided the required HTTP headers:
if_modified_since = (php.stripslashes(php.SERVER['HTTP_IF_MODIFIED_SINCE']) \
if php.isset(php.SERVER, 'HTTP_IF_MODIFIED_SINCE') else False)
if_none_match = (php.stripslashes(php.SERVER['HTTP_IF_NONE_MATCH']) \
if php.isset(php.SERVER, 'HTTP_IF_NONE_MATCH') else False)
if (if_modified_since and if_none_match
and if_none_match == etag # etag must match
and if_modified_since
== last_modified): # if-modified-since must match
php.header(php.SERVER['SERVER_PROTOCOL'] + ' 304 Not Modified')
# All 304 responses must send an etag if the 200 response for the same
# object contained an etag
php.header("Etag: %(etag)s" % {'etag': etag})
exit()
# Send appropriate response:
php.header("Last-Modified: %(last_modified)s" % \
{'last_modified':last_modified})
php.header("Etag: %(etag)s" % {'etag': etag})
# The following headers force validation of cache:
php.header("Expires: Sun, 19 Nov 1978 05:00:00 GMT")
php.header("Cache-Control: must-revalidate")
if (variable_get('page_compression', True)):
# Determine if the browser accepts gzipped data.
if (php.strpos(php.SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') == False and \
php.function_exists('gzencode')):
# Strip the gzip php.header and run uncompress.
cache.data = php.gzinflate(
php.substr(php.substr(cache.data, 10), 0, -8))
elif (php.function_exists('gzencode')):
php.header('Content-Encoding: gzip')
# Send the original request's headers. We send them one after
# another so PHP's php.header() def can deal with duplicate
# headers.
headers = php.explode("\n", cache.headers)
for php.header_ in headers:
php.header(php.header_)
print cache.data
def _drupal_bootstrap(phase):
if phase == DRUPAL_BOOTSTRAP_CONFIGURATION:
drupal_initialize_variables()
# Start a page timer:
timer_start("page")
# Initialize the configuration
conf_init()
elif phase == DRUPAL_BOOTSTRAP_EARLY_PAGE_CACHE:
# Allow specifying special cache handlers in settings.php, like
# using memcached or files for storing cache information.
# If the page_cache_fastpath is set to TRUE in settings.php and
# page_cache_fastpath (implemented in the special implementation of
# cache.inc) printed the page and indicated this with a returned TRUE
# then we are done.
if variable_get("page_cache_fastpath", False) and page_cache_fastpath():
exit()
elif phase == DRUPAL_BOOTSTRAP_DATABASE:
# Initialize the database system. Note that the connection
# won't be initialized until it is actually requested.
# ! do nothing !
# Register autoload functions so that we can access classes and interfaces.
# spl_autoload_register('drupal_autoload_class')
# spl_autoload_register('drupal_autoload_interface')
pass
elif phase == DRUPAL_BOOTSTRAP_ACCESS:
# Deny access to blocked IP addresses - t() is not yet available
if drupal_is_denied(ip_address()):
php.header(php.SERVER["SERVER_PROTOCOL"] + " 403 Forbidden")
print "Sorry, " + check_plain(ip_address()) + " has been banned."
exit()
elif phase == DRUPAL_BOOTSTRAP_SESSION:
php.session_set_save_handler(
"_sess_open", "_sess_close", "_sess_read", "_sess_write", "_sess_destroy_sid", "_sess_gc"
)
php.session_start()
elif phase == DRUPAL_BOOTSTRAP_LATE_PAGE_CACHE:
# Initialize configuration variables, using values from settings.php
# if available.
settings.conf = variable_init(({} if (settings.conf == None) else settings.conf))
# Load plugin handling.
cache_mode = variable_get("cache", CACHE_DISABLED)
# Get the page from the cache.
cache = "" if (cache_mode == CACHE_DISABLED) else page_get_cache()
# If the skipping of the bootstrap hooks is not enforced, call hook_boot.
if cache_mode != CACHE_AGGRESSIVE:
invoke_all("boot")
# If there is a cached page, display it.
if cache:
drupal_page_cache_header(cache)
# If the skipping of the bootstrap hooks is not enforced, call hook_exit.
if cache_mode != CACHE_AGGRESSIVE:
bootstrap_invoke_all("exit")
# We are done.
exit()
# Prepare for non-cached page workflow.
drupal_page_header()
elif phase == DRUPAL_BOOTSTRAP_LANGUAGE:
drupal_init_language()
elif phase == DRUPAL_BOOTSTRAP_PATH:
# Initialize php.GET['q'] prior to loading plugins and invoking hook_init().
# lib_path.drupal_init_path();
pass
elif phase == DRUPAL_BOOTSTRAP_FULL:
lib_common._drupal_bootstrap_full()
def drupal_page_cache_header(cache):
"""
Set HTTP headers in preparation for a cached page response.
The general approach here is that anonymous users can keep a local
cache of the page, but must revalidate it on every request. Then,
they are given a '304 Not Modified' response as long as they stay
logged out and the page has not been modified.
"""
# Set default values:
last_modified = php.gmdate("D, d M Y H:i:s", cache.created) + " GMT"
etag = '"' + drupy_md5(last_modified) + '"'
# See if the client has provided the required HTTP headers:
if_modified_since = (
php.stripslashes(php.SERVER["HTTP_IF_MODIFIED_SINCE"])
if php.isset(php.SERVER, "HTTP_IF_MODIFIED_SINCE")
else False
)
if_none_match = (
php.stripslashes(php.SERVER["HTTP_IF_NONE_MATCH"]) if php.isset(php.SERVER, "HTTP_IF_NONE_MATCH") else False
)
if (
if_modified_since
and if_none_match
and if_none_match == etag # etag must match
and if_modified_since == last_modified
): # if-modified-since must match
php.header(php.SERVER["SERVER_PROTOCOL"] + " 304 Not Modified")
# All 304 responses must send an etag if the 200 response for the same
# object contained an etag
php.header("Etag: %(etag)s" % {"etag": etag})
exit()
# Send appropriate response:
php.header("Last-Modified: %(last_modified)s" % {"last_modified": last_modified})
php.header("Etag: %(etag)s" % {"etag": etag})
# The following headers force validation of cache:
php.header("Expires: Sun, 19 Nov 1978 05:00:00 GMT")
php.header("Cache-Control: must-revalidate")
if variable_get("page_compression", True):
# Determine if the browser accepts gzipped data.
if php.strpos(php.SERVER["HTTP_ACCEPT_ENCODING"], "gzip") == False and php.function_exists("gzencode"):
# Strip the gzip php.header and run uncompress.
cache.data = php.gzinflate(php.substr(php.substr(cache.data, 10), 0, -8))
elif php.function_exists("gzencode"):
php.header("Content-Encoding: gzip")
# Send the original request's headers. We send them one after
# another so PHP's php.header() def can deal with duplicate
# headers.
headers = php.explode("\n", cache.headers)
for php.header_ in headers:
php.header(php.header_)
print cache.data
