>Number: 5795
>Category: mod_include
>Synopsis: Added the configuration directive LastModHack to mod_include
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: apache
>State: open
>Class: change-request
>Submitter-Id: apache
>Arrival-Date: Mon Feb 21 17:20:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator: [EMAIL PROTECTED]
>Release: 1.3.9
>Organization:
apache
>Environment:
SunOS voyager.apg.more.net 5.7 Generic_106541-07 sun4m sparc
SUNW,SPARCstation-10
>Description:
+ /* A second config directive LastModHack has been added.
+ * The flags are On or Off. If it is On, LastModHack will
+ * set the Last-Modified header like how XBitHack does,
+ * but without requiring the group executable bit to be set.
+ *
+ * This change was made so that search engines that check
+ * the http header Last-Modified (like HtDig) can better
+ * determine if the file needs to be reindexed.
+ *
+ * GLN
+ *
+ */
>How-To-Repeat:
>Fix:
*** mod_include.c.old Thu Feb 17 08:22:49 2000
--- mod_include.c Mon Feb 21 19:02:04 2000
***************
*** 2298,2322 ****
#define DEFAULT_XBITHACK xbithack_off
#endif
static void *create_includes_dir_config(pool *p, char *dummy)
{
! enum xbithack *result = (enum xbithack *) ap_palloc(p, sizeof(enum
xbithack));
! *result = DEFAULT_XBITHACK;
! return result;
}
static const char *set_xbithack(cmd_parms *cmd, void *xbp, char *arg)
{
! enum xbithack *state = (enum xbithack *) xbp;
if (!strcasecmp(arg, "off")) {
! *state = xbithack_off;
}
else if (!strcasecmp(arg, "on")) {
! *state = xbithack_on;
}
else if (!strcasecmp(arg, "full")) {
! *state = xbithack_full;
}
else {
return "XBitHack must be set to Off, On, or Full";
--- 2298,2357 ----
#define DEFAULT_XBITHACK xbithack_off
#endif
+ /* A second config directive LastModHack has been added.
+ * The flags are On or Off. If it is On, LastModHack will
+ * set the Last-Modified header like how XBitHack does,
+ * but without requiring the group executable bit to be set.
+ *
+ * This change was made so that search engines that check
+ * the http header Last-Modified (like HtDig) can better
+ * determine if the file needs to be reindexed.
+ *
+ * GLN
+ *
+ */
+
+ /* Needed a data structure to hold both the XBitHack and
+ * LastModHack settings. GLN
+ */
+
+ /* LastModHack values GLN */
+ enum lastmodhack {
+ lastmodhack_off, lastmodhack_on
+ };
+
+ #define DEFAULT_LASTMODHACK lastmodhack_off
+
+ struct hack_config {
+ enum xbithack xbithack;
+ enum lastmodhack lastmodhack;
+ };
+
+ /* Modified to support LastModHack GLN */
static void *create_includes_dir_config(pool *p, char *dummy)
{
! struct hack_config *hc;
!
! hc = (struct hack_config *) ap_palloc(p, sizeof(struct hack_config));
! if( !hc )return(NULL);
! hc->xbithack = DEFAULT_XBITHACK;
! hc->lastmodhack = DEFAULT_LASTMODHACK;
! return hc;
}
+ /* Modified to support LastModHack GLN */
static const char *set_xbithack(cmd_parms *cmd, void *xbp, char *arg)
{
! struct hack_config *hc = (struct hack_config *)xbp;
if (!strcasecmp(arg, "off")) {
! hc->xbithack = xbithack_off;
}
else if (!strcasecmp(arg, "on")) {
! hc->xbithack = xbithack_on;
}
else if (!strcasecmp(arg, "full")) {
! hc->xbithack = xbithack_full;
}
else {
return "XBitHack must be set to Off, On, or Full";
***************
*** 2325,2341 ****
return NULL;
}
static int send_parsed_file(request_rec *r)
{
FILE *f;
! enum xbithack *state =
! (enum xbithack *) ap_get_module_config(r->per_dir_config,
&includes_module);
int errstatus;
request_rec *parent;
if (!(ap_allow_options(r) & OPT_INCLUDES)) {
return DECLINED;
}
r->allowed |= (1 << M_GET);
if (r->method_number != M_GET) {
return DECLINED;
--- 2360,2397 ----
return NULL;
}
+ /* Added to support LastModHack GLN */
+ static const char *set_lastmodhack(cmd_parms *cmd, void *lmp, char *arg)
+ {
+ struct hack_config *hc = (struct hack_config *)lmp;
+
+ if (!strcasecmp(arg, "off")) {
+ hc->lastmodhack = lastmodhack_off;
+ }
+ else if (!strcasecmp(arg, "on")) {
+ hc->lastmodhack = lastmodhack_on;
+ }
+ else {
+ return "LastModHack must be set to Off or On";
+ }
+
+ return NULL;
+ }
+
+ /* Modified to support LastModHack GLN */
static int send_parsed_file(request_rec *r)
{
FILE *f;
! struct hack_config *hc;
! enum xbithack *state;
! enum lastmodhack *last_state;
int errstatus;
request_rec *parent;
if (!(ap_allow_options(r) & OPT_INCLUDES)) {
return DECLINED;
}
+
r->allowed |= (1 << M_GET);
if (r->method_number != M_GET) {
return DECLINED;
***************
*** 2355,2361 ****
return HTTP_FORBIDDEN;
}
! if ((*state == xbithack_full)
#if !defined(OS2) && !defined(WIN32)
/* OS/2 dosen't support Groups. */
&& (r->finfo.st_mode & S_IXGRP)
--- 2411,2419 ----
return HTTP_FORBIDDEN;
}
! hc = (struct hack_config *)ap_get_module_config(r->per_dir_config,
&includes_module);
!
! if ((hc->xbithack == xbithack_full)
#if !defined(OS2) && !defined(WIN32)
/* OS/2 dosen't support Groups. */
&& (r->finfo.st_mode & S_IXGRP)
***************
*** 2364,2369 ****
--- 2422,2432 ----
ap_update_mtime(r, r->finfo.st_mtime);
ap_set_last_modified(r);
}
+ if ((hc->lastmodhack == lastmodhack_on)) {
+ ap_update_mtime(r, r->finfo.st_mtime);
+ ap_set_last_modified(r);
+ }
+
if ((errstatus = ap_meets_conditions(r)) != OK) {
return errstatus;
}
***************
*** 2422,2455 ****
static int send_shtml_file(request_rec *r)
{
r->content_type = "text/html";
return send_parsed_file(r);
}
static int xbithack_handler(request_rec *r)
{
#if defined(OS2) || defined(WIN32)
/* OS/2 dosen't currently support the xbithack. This is being worked on.
*/
return DECLINED;
#else
enum xbithack *state;
if (!(r->finfo.st_mode & S_IXUSR)) {
return DECLINED;
}
! state = (enum xbithack *) ap_get_module_config(r->per_dir_config,
&includes_module);
!
! if (*state == xbithack_off) {
return DECLINED;
}
return send_parsed_file(r);
#endif
}
static const command_rec includes_cmds[] =
{
{"XBitHack", set_xbithack, NULL, OR_OPTIONS, TAKE1, "Off, On, or Full"},
{NULL}
};
--- 2485,2522 ----
static int send_shtml_file(request_rec *r)
{
r->content_type = "text/html";
+
return send_parsed_file(r);
}
+ /* Modified to support LastModHack GLN */
static int xbithack_handler(request_rec *r)
{
#if defined(OS2) || defined(WIN32)
/* OS/2 dosen't currently support the xbithack. This is being worked on.
*/
return DECLINED;
#else
+ struct hack_config *hc;
enum xbithack *state;
if (!(r->finfo.st_mode & S_IXUSR)) {
return DECLINED;
}
! hc = (struct hack_config *) ap_get_module_config(r->per_dir_config,
&includes_module);
! if ( hc->xbithack == xbithack_off) {
return DECLINED;
}
return send_parsed_file(r);
#endif
}
+ /* Modified to support LastModHack GLN */
static const command_rec includes_cmds[] =
{
{"XBitHack", set_xbithack, NULL, OR_OPTIONS, TAKE1, "Off, On, or Full"},
+ {"LastModHack", set_lastmodhack, NULL, OR_OPTIONS, TAKE1, "Off or On"},
{NULL}
};
>Release-Note:
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