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Lines 591-596
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| 591 |
else if (!strcasecmp(w, "Transfer-Encoding")) { |
591 |
else if (!strcasecmp(w, "Transfer-Encoding")) { |
| 592 |
apr_table_set(r->headers_out, w, l); |
592 |
apr_table_set(r->headers_out, w, l); |
| 593 |
} |
593 |
} |
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594 |
else if (!strcasecmp(w, "Age")) { |
| 595 |
apr_table_set(r->headers_out, w, l); |
| 596 |
} |
| 597 |
else if (!strcasecmp(w, "Expires")) { |
| 598 |
apr_table_set(r->headers_out, w, l); |
| 599 |
} |
| 594 |
/* |
600 |
/* |
| 595 |
* If the script gave us a Last-Modified header, we can't just |
601 |
* If the script gave us a Last-Modified header, we can't just |
| 596 |
* pass it on blindly because of restrictions on future values. |
602 |
* pass it on blindly because of restrictions on future values. |
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Lines 164-169
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| 164 |
apr_int64_t age, maxage_req, maxage_cresp, maxage, smaxage, maxstale, minfresh; |
164 |
apr_int64_t age, maxage_req, maxage_cresp, maxage, smaxage, maxstale, minfresh; |
| 165 |
const char *cc_cresp, *cc_req, *pragma_cresp; |
165 |
const char *cc_cresp, *cc_req, *pragma_cresp; |
| 166 |
const char *agestr = NULL; |
166 |
const char *agestr = NULL; |
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167 |
const char *exps; |
| 167 |
char *val; |
168 |
char *val; |
| 168 |
apr_time_t age_c = 0; |
169 |
apr_time_t age_c = 0; |
| 169 |
cache_info *info = &(cache->handle->cache_obj->info); |
170 |
cache_info *info = &(cache->handle->cache_obj->info); |
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Lines 208-213
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| 208 |
age_c = apr_atoi64(agestr); |
209 |
age_c = apr_atoi64(agestr); |
| 209 |
} |
210 |
} |
| 210 |
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211 |
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212 |
/* Extract "Expires" from the response header for determining Heuristic expiration condition */ |
| 213 |
exps = apr_table_get(r->headers_out, "Expires"); |
| 214 |
|
| 211 |
/* calculate age of object */ |
215 |
/* calculate age of object */ |
| 212 |
age = ap_cache_current_age(info, age_c, r->request_time); |
216 |
age = ap_cache_current_age(info, age_c, r->request_time); |
| 213 |
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217 |
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Lines 274-279
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| 274 |
(info->expire != APR_DATE_BAD && (info->expire - info->date) > age))) { |
278 |
(info->expire != APR_DATE_BAD && (info->expire - info->date) > age))) { |
| 275 |
/* make sure we don't stomp on a previous warning */ |
279 |
/* make sure we don't stomp on a previous warning */ |
| 276 |
apr_table_merge(r->headers_out, "Warning", "110 Response is stale"); |
280 |
apr_table_merge(r->headers_out, "Warning", "110 Response is stale"); |
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|
281 |
} |
| 282 |
|
| 283 |
/* |
| 284 |
* If none of Expires, Cache-Control: max-age, or Cache-Control: |
| 285 |
* s-maxage appears in the response, and the respose header age |
| 286 |
* calculated is more than 24 hours add the warning 113 |
| 287 |
*/ |
| 288 |
if((maxage_cresp == -1) && (smaxage == -1) && |
| 289 |
(exps == NULL) && ((age + age_c) > 86400)) { |
| 290 |
apr_table_merge(r->headers_out, "Warning", "113 Heuristic expiration"); |
| 277 |
} |
291 |
} |
| 278 |
return 1; /* Cache object is fresh */ |
292 |
return 1; /* Cache object is fresh */ |
| 279 |
} |
293 |
} |