mirror of
https://git.FreeBSD.org/ports.git
synced 2024-11-15 23:50:44 +00:00
148 lines
3.8 KiB
Plaintext
148 lines
3.8 KiB
Plaintext
*** /dev/null Tue Feb 6 11:05:04 1996
|
|
--- README-CACHE_CHECK_SIZE Tue Feb 6 13:27:32 1996
|
|
***************
|
|
*** 0 ****
|
|
--- 1,11 ----
|
|
+ Patch to avoid serving truncated files from the cache.
|
|
+
|
|
+ Apply the patch, modify WWW/All/<model>/Makefile.include (for your model
|
|
+ system) and add '-DCACHE_CHECK_SIZE' to CFLAGS.
|
|
+
|
|
+ With the patch, the server checks the size of a file in the cache before
|
|
+ returning it to the user; if the size is incorrect, the server will
|
|
+ refresh the file in the cache.
|
|
+
|
|
+ --
|
|
+ -- 19960205, Gertjan van Oosten, gertjan@West.NL, West Consulting bv
|
|
*** WWW/Daemon/Implementation/HTCache.c.orig Fri Aug 12 12:36:11 1994
|
|
--- Daemon/Implementation/HTCache.c Mon Feb 5 14:02:11 1996
|
|
***************
|
|
*** 382,387 ****
|
|
--- 382,437 ----
|
|
}
|
|
|
|
|
|
+ #ifdef CACHE_CHECK_SIZE
|
|
+ /*
|
|
+ ** Check whether cache file has correct size
|
|
+ **
|
|
+ ** On exit:
|
|
+ ** return YES
|
|
+ ** if size is good
|
|
+ ** return NO
|
|
+ ** if size is too small or too large
|
|
+ **
|
|
+ */
|
|
+ PRIVATE BOOL cache_check_size ARGS2(char *, cfn,
|
|
+ struct stat *, stat_info)
|
|
+ {
|
|
+ char buf[BUF_SIZE+2];
|
|
+ FILE *cf;
|
|
+ long cl = 0, pos, size, actual;
|
|
+
|
|
+ if (!cfn)
|
|
+ return NO;
|
|
+
|
|
+ cf = fopen(cfn, "r");
|
|
+ if (!cf)
|
|
+ return NO;
|
|
+
|
|
+ while (fgets(buf, sizeof(buf), cf)) {
|
|
+ if (!buf[0]
|
|
+ || (buf[0] == '\n' && !buf[1])
|
|
+ || (buf[0] == '\r' && buf[1] == '\n' && !buf[2]))
|
|
+ break;
|
|
+
|
|
+ if (!strncasecomp(buf, "content-length:", 15))
|
|
+ sscanf(buf+15, "%ld", &cl);
|
|
+ }
|
|
+ pos = ftell(cf);
|
|
+ fclose(cf);
|
|
+
|
|
+ size = stat_info->st_size;
|
|
+
|
|
+ actual = size - pos;
|
|
+ if (TRACE) {
|
|
+ fprintf(stderr,"Cache....... checking \"%s\": content-length %ld =?= %ld\n",
|
|
+ cfn,cl,actual);
|
|
+ }
|
|
+
|
|
+ return (cl == actual ? YES : NO);
|
|
+ }
|
|
+ #endif /* CACHE_CHECK_SIZE */
|
|
+
|
|
+
|
|
PRIVATE BOOL do_caching ARGS1(char *, url)
|
|
{
|
|
HTList * cur = cc.no_caching;
|
|
***************
|
|
*** 460,465 ****
|
|
--- 510,518 ----
|
|
time_t *, expires)
|
|
{
|
|
struct stat stat_info;
|
|
+ #ifdef CACHE_CHECK_SIZE
|
|
+ BOOL size_ok;
|
|
+ #endif
|
|
|
|
if (!url || !cfn || !cf || !if_ms) return CACHE_NO;
|
|
*cfn = NULL;
|
|
***************
|
|
*** 497,503 ****
|
|
--- 550,563 ----
|
|
}
|
|
|
|
success = HTCacheInfo_for(*cfn, &ld, &lc, &ex, &mu, &lm);
|
|
+ #ifdef CACHE_CHECK_SIZE
|
|
+ /* Check whether file in cache has correct size */
|
|
+ size_ok = cache_check_size(*cfn, &stat_info);
|
|
+ #endif
|
|
if (!success /* no entry */
|
|
+ #ifdef CACHE_CHECK_SIZE
|
|
+ || !size_ok /* wrong size */
|
|
+ #endif
|
|
|| ex - cc.cache_time_margin <= cur_time /* expired */
|
|
|| cur_time - lc >= refresh_interval /* time to refresh */
|
|
|| in.no_cache_pragma) { /* override cache */
|
|
***************
|
|
*** 507,512 ****
|
|
--- 567,576 ----
|
|
if (TRACE) {
|
|
if (!success)
|
|
fprintf(stderr, "NoEntry..... %s -- expiring\n",*cfn);
|
|
+ #ifdef CACHE_CHECK_SIZE
|
|
+ else if (!size_ok)
|
|
+ fprintf(stderr, "Truncated...... %s -- refresh\n",*cfn);
|
|
+ #endif
|
|
else if (in.no_cache_pragma)
|
|
fprintf(stderr, "Forced...... refresh of %s\n",*cfn);
|
|
else if (ex - cc.cache_time_margin <= cur_time)
|
|
***************
|
|
*** 527,533 ****
|
|
--- 591,601 ----
|
|
if (cc.cache_no_connect) {
|
|
CTRACE(stderr, "Standalone.. caching mode but expired\n");
|
|
cache_hit = YES;
|
|
+ #ifdef CACHE_CHECK_SIZE
|
|
+ return size_ok ? CACHE_IF_MODIFIED : CACHE_CREATE;
|
|
+ #else
|
|
return CACHE_IF_MODIFIED;
|
|
+ #endif
|
|
}
|
|
|
|
if (!(*cf = do_lock(*cfn))) {
|
|
***************
|
|
*** 550,556 ****
|
|
--- 618,628 ----
|
|
CTRACE(stderr,"IfModSince.. time: %s", ctime(if_ms));
|
|
|
|
free(backup);
|
|
+ #ifdef CACHE_CHECK_SIZE
|
|
+ return size_ok ? CACHE_IF_MODIFIED : CACHE_CREATE;
|
|
+ #else
|
|
return CACHE_IF_MODIFIED;
|
|
+ #endif
|
|
}
|
|
else {
|
|
CTRACE(stderr, "Cache....... not expired %s\n", *cfn);
|