mod_expires.c revision 12901074f5d6b36d08be84d8637b6f2c21e0da26
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering/* ====================================================================
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * The Apache Software License, Version 1.1
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Copyright (c) 2000-2002 The Apache Software Foundation. All rights
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Redistribution and use in source and binary forms, with or without
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * modification, are permitted provided that the following conditions
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * 1. Redistributions of source code must retain the above copyright
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * notice, this list of conditions and the following disclaimer.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * 2. Redistributions in binary form must reproduce the above copyright
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * notice, this list of conditions and the following disclaimer in
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * the documentation and/or other materials provided with the
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * distribution.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * 3. The end-user documentation included with the redistribution,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * if any, must include the following acknowledgment:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * "This product includes software developed by the
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Apache Software Foundation (http://www.apache.org/)."
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering * Alternately, this acknowledgment may appear in the software itself,
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * if and wherever such third-party acknowledgments normally appear.
914d6c09f1a449c60c8495c179a8bbe012315ba2Tom Gundersen * 4. The names "Apache" and "Apache Software Foundation" must
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * not be used to endorse or promote products derived from this
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * software without prior written permission. For written
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * permission, please contact apache@apache.org.
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * 5. Products derived from this software may not be called "Apache",
914d6c09f1a449c60c8495c179a8bbe012315ba2Tom Gundersen * nor may "Apache" appear in their name, without prior written
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * permission of the Apache Software Foundation.
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
db73295accbec0c6513817f0a64a92018592bb26Lennart Poettering * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
288a74cce597f81d3ba01d8a5ca7d2ba5b654b7eRonny Chevalier * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
3f6fd1ba65f962702753c4ad284b588e59689a23Lennart Poettering * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * SUCH DAMAGE.
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering * ====================================================================
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * This software consists of voluntary contributions made by many
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * individuals on behalf of the Apache Software Foundation. For more
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * information on the Apache Software Foundation, please see
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Portions of this software are based upon public domain software
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * originally written at the National Center for Supercomputing Applications,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * University of Illinois, Urbana-Champaign.
914d6c09f1a449c60c8495c179a8bbe012315ba2Tom Gundersen * version 0.0.11
914d6c09f1a449c60c8495c179a8bbe012315ba2Tom Gundersen * status beta
732b7f39a2b3b1a2af90102c6262186ae71197acRonny Chevalier * Andrew Wilson <Andrew.Wilson@cm.cf.ac.uk> 26.Jan.96
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * This module allows you to control the form of the Expires: header
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * that Apache issues for each access. Directives can appear in
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * configuration files or in .htaccess files so expiry semantics can
914d6c09f1a449c60c8495c179a8bbe012315ba2Tom Gundersen * be defined on a per-directory basis.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * DIRECTIVE SYNTAX
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Valid directives are:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * ExpiresActive on | off
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * ExpiresDefault <code><seconds>
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * ExpiresByType type/encoding <code><seconds>
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Valid values for <code> are:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * 'M' expires header shows file modification date + <seconds>
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * 'A' expires header shows access time + <seconds>
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * [I'm not sure which of these is best under different
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * circumstances, I guess it's for other people to explore.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * The effects may be indistinguishable for a number of cases]
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * <seconds> should be an integer value [acceptable to atoi()]
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * There is NO space between the <code> and <seconds>.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * For example, a directory which contains information which changes
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * frequently might contain:
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * # reports generated by cron every hour. don't let caches
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * # hold onto stale information
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * ExpiresDefault M3600
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Another example, our html pages can change all the time, the gifs
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * tend not to change often:
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * # pages are hot (1 week), images are cold (1 month)
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresByType text/html A604800
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresByType image/gif A2592000
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * Expires can be turned on for all URLs on the server by placing the
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * following directive in a conf file:
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresActive on
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresActive can also appear in .htaccess files, enabling the
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * behaviour to be turned on or off for each chosen directory.
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen * # turn off Expires behaviour in this directory
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * # and subdirectories
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresActive off
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * Directives defined for a directory are valid in subdirectories
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * unless explicitly overridden by new directives in the subdirectory
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen * .htaccess files.
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ALTERNATIVE DIRECTIVE SYNTAX
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * Directives can also be defined in a more readable syntax of the form:
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen * ExpiresDefault "<base> [plus] {<num> <type>}*"
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresByType type/encoding "<base> [plus] {<num> <type>}*"
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * where <base> is one of:
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * now equivalent to 'access'
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * modification
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * where the 'plus' keyword is optional
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * where <num> should be an integer value [acceptable to atoi()]
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * where <type> is one of:
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * For example, any of the following directives can be used to make
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * documents expire 1 month after being accessed, by default:
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresDefault "access plus 1 month"
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresDefault "access plus 4 weeks"
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresDefault "access plus 30 days"
a6a4f528899b1dab47408733b4a423c66ea40f7aThomas Hindoe Paaboel Andersen * The expiry time can be fine-tuned by adding several '<num> <type>'
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresByType text/html "access plus 1 month 15 days 2 hours"
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * ExpiresByType image/gif "modification plus 5 hours 3 minutes"
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 29.Jan.96 Hardened the add_* functions. Server will now bail out
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * if bad directives are given in the conf files.
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 02.Feb.96 Returns DECLINED if not 'ExpiresActive on', giving other
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * expires-aware modules a chance to play with the same
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * directives. [Michael Rutman]
1fc464f6fbecfc5d8ba9f7b98d19e21fb324bfb9Lennart Poettering * 03.Feb.96 Call tzset() before localtime(). Trying to get the module
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * to work properly in non GMT timezones.
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 12.Feb.96 Modified directive syntax to allow more readable commands:
1fc464f6fbecfc5d8ba9f7b98d19e21fb324bfb9Lennart Poettering * ExpiresDefault "now plus 10 days 20 seconds"
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * ExpiresDefault "access plus 30 days"
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * ExpiresDefault "modification plus 1 year 10 months 30 days"
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 13.Feb.96 Fix call to table_get() with NULL 2nd parameter [Rob Hartill]
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 19.Feb.96 Call gm_timestr_822() to get time formatted correctly, can't
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * rely on presence of HTTP_TIME_FORMAT in Apache 1.1+.
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 21.Feb.96 This version (0.0.9) reverses assumptions made in 0.0.8
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * about star/star handlers. Reverting to 0.0.7 behaviour.
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 08.Jun.96 allows ExpiresDefault to be used with responses that use
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * the DefaultType by not DECLINING, but instead skipping
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * the table_get check and then looking for an ExpiresDefault.
1fc464f6fbecfc5d8ba9f7b98d19e21fb324bfb9Lennart Poettering * [Rob Hartill]
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * 04.Nov.96 'const' definitions added.
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * add support for Cache-Control: max-age=20 from the HTTP/1.1
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * proposal (in this case, a ttl of 20 seconds) [ask roy]
1fc464f6fbecfc5d8ba9f7b98d19e21fb324bfb9Lennart Poettering * add per-file expiry and explicit expiry times - duplicates some
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * of the mod_cern_meta.c functionality. eg:
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering * ExpiresExplicit index.html "modification plus 30 days"
266b538958932e6fc27dfce4917336e70e17e29eTom Gundersen * Hi, welcome to the internet.
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersentypedef struct {
f647962d64e844689f3e2acfce6102fc47e76df2Michal Schmidt/* from mod_dir, why is this alias used?
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poetteringmodule AP_MODULE_DECLARE_DATA expires_module;
ab1525bc2d92780b4dc64bc5b9cdb52594e2df7dLennart Poetteringstatic void *create_dir_expires_config(apr_pool_t *p, char *dummy)
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering (expires_dir_config *) apr_pcalloc(p, sizeof(expires_dir_config));
7d6884b65e6ea7317346d29bc2f6c9ba051a0cacThomas Hindoe Paaboel Andersen new->active = ACTIVE_DONTCARE;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering new->expiresbytype = apr_table_make(p, 4);
d6731e4c7964ee2860d4f5abdb0b52acd7a66960Tom Gundersen return (void *) new;
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poetteringstatic const char *set_expiresactive(cmd_parms *cmd, void *in_dir_config, int arg)
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering expires_dir_config *dir_config = in_dir_config;
914d6c09f1a449c60c8495c179a8bbe012315ba2Tom Gundersen /* if we're here at all it's because someone explicitly
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * set the active flag
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering/* check_code() parse 'code' and return NULL or an error response
6d0c65ffb4f82e8c6dceb453919b3db54343fc27Lennart Poettering * string. If we return NULL then real_code contains code converted
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * to the cnnnn format.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poetteringstatic char *check_code(apr_pool_t *p, const char *code, char **real_code)
81fd1dd3a2cf4cc90a6898d562c9bb0fb238cbd7Tom Gundersen /* 0.0.4 compatibility?
888943fc6246b2917168fff59380b58b678ba157Lennart Poettering if ((code[0] == 'A') || (code[0] == 'M')) {
81fd1dd3a2cf4cc90a6898d562c9bb0fb238cbd7Tom Gundersen /* <base> [plus] {<num> <type>}*
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen else if (!strncasecmp(word, "modification", 1)) {
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen return apr_pstrcat(p, "bad expires code, unrecognised <base> '",
69fb1176c403e437c4fba763ba242b540c73898fLennart Poettering /* {<num> <type>}*
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen return apr_pstrcat(p, "bad expires code, numeric value expected <num> '",
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen /* do nothing */
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen return apr_pstrcat(p, "bad expires code, missing <type>", NULL);
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen return apr_pstrcat(p, "bad expires code, unrecognised <type>",
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen /* next <num>
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen *real_code = apr_psprintf(p, "%c%d", base, modifier);
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersenstatic const char *set_expiresbytype(cmd_parms *cmd, void *in_dir_config,
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen expires_dir_config *dir_config = in_dir_config;
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen if ((response = check_code(cmd->pool, code, &real_code)) == NULL) {
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen apr_table_setn(dir_config->expiresbytype, mime, real_code);
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen "'ExpiresByType ", mime, " ", code, "': ", response, NULL);
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersenstatic const char *set_expiresdefault(cmd_parms *cmd, void *in_dir_config,
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen expires_dir_config * dir_config = in_dir_config;
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen if ((response = check_code(cmd->pool, code, &real_code)) == NULL) {
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen "'ExpiresDefault ", code, "': ", response, NULL);
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen AP_INIT_FLAG("ExpiresActive", set_expiresactive, NULL, DIR_CMD_PERMS,
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen "Limited to 'on' or 'off'"),
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen AP_INIT_TAKE2("ExpiresByType", set_expiresbytype, NULL, DIR_CMD_PERMS,
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen "a MIME type followed by an expiry date code"),
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen AP_INIT_TAKE1("ExpiresDefault", set_expiresdefault, NULL, DIR_CMD_PERMS,
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen "an expiry date code"),
69fb1176c403e437c4fba763ba242b540c73898fLennart Poetteringstatic void *merge_expires_dir_configs(apr_pool_t *p, void *basev, void *addv)
81fd1dd3a2cf4cc90a6898d562c9bb0fb238cbd7Tom Gundersen expires_dir_config *new = (expires_dir_config *) apr_pcalloc(p, sizeof(expires_dir_config));
69fb1176c403e437c4fba763ba242b540c73898fLennart Poettering expires_dir_config *base = (expires_dir_config *) basev;
69fb1176c403e437c4fba763ba242b540c73898fLennart Poettering expires_dir_config *add = (expires_dir_config *) addv;
c09da72900b03fcddade06643f24c6357f3e0482Tom Gundersen new->expiresbytype = apr_table_overlay(p, add->expiresbytype,
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering if (ap_is_HTTP_ERROR(r->status)) /* Don't add Expires headers to errors */
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering if (r->main != NULL) /* Say no to subrequests */
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering conf = (expires_dir_config *) ap_get_module_config(r->per_dir_config, &expires_module);
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
1c4baffc1895809bae9ac36b670af90a4cb9cd7dTom Gundersen /* we perhaps could use the default_type(r) in its place but that
69fb1176c403e437c4fba763ba242b540c73898fLennart Poettering * may be 2nd guesing the desired configuration... calling table_get
69fb1176c403e437c4fba763ba242b540c73898fLennart Poettering * with a NULL key will SEGV us
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * I still don't know *why* r->content_type would ever be NULL, this
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * is possibly a result of fixups being called in many different
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * places. Fixups is probably the wrong place to be doing all this
1d050e1e0a7082e23ee9b31fa0b819cb332b3444Lennart Poettering * work... Bah.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * Changed as of 08.Jun.96 don't DECLINE, look for an ExpiresDefault.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering code = (char *) apr_table_get(conf->expiresbytype,
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering ap_field_noparam(r->pool, r->content_type));
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering /* no expires defined for that type, is there a default? */
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering /* we have our code */
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering /* file doesn't exist on disk, so we can't do anything based on
1693a943ca581aca2beebb4c812ec6c9f17b8164Lennart Poettering * modification time. Note that this does _not_ log an error.
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering additional = atoi(&code[1]) * APR_USEC_PER_SEC;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering /* there's been some discussion and it's possible that
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * 'access time' will be stored in request structure
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering additional = atoi(&code[1]) * APR_USEC_PER_SEC;
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering /* expecting the add_* routines to be case-hardened this
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering * is just a reminder that module is beta
ee8c45689526ca973407cbb77bce7b96a062c40bLennart Poettering ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
69fb1176c403e437c4fba763ba242b540c73898fLennart Poettering "internal error: bad expires code: %s", r->filename);
64d6c22905e94b02e760747c6c143dc9893083d9Thomas Hindoe Paaboel Andersen apr_table_mergen(r->headers_out, "Cache-Control",
373d9f173f910d547159917401c4b1f84af85736Tom Gundersen timestr = apr_palloc(r->pool, APR_RFC822_DATE_LEN);
d57c365bf8f09fbcc649e00f7060ff30809f67c2Lennart Poettering apr_table_setn(r->headers_out, "Expires", timestr);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering ap_hook_fixups(add_expires,NULL,NULL,APR_HOOK_MIDDLE);
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poetteringmodule AP_MODULE_DECLARE_DATA expires_module =
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering create_dir_expires_config, /* dir config creater */
9085f64a6694f2928c79fcce365edb1dca6937d4Lennart Poettering merge_expires_dir_configs, /* dir merger --- default is to override */