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https://github.com/moparisthebest/curl
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use GMT for the conditional timed gets (reported by Phil Karn)
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commit
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13
lib/http.c
13
lib/http.c
@ -646,12 +646,21 @@ CURLcode Curl_http(struct connectdata *conn)
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if(data->timecondition) {
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struct tm *thistime;
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/* Phil Karn (Fri, 13 Apr 2001) pointed out that the If-Modified-Since
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* header family should have their times set in GMT as RFC2616 defines:
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* "All HTTP date/time stamps MUST be represented in Greenwich Mean Time
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* (GMT), without exception. For the purposes of HTTP, GMT is exactly
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* equal to UTC (Coordinated Universal Time)." (see page 20 of RFC2616).
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*/
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#ifdef HAVE_LOCALTIME_R
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/* thread-safe version */
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/* We assume that the presense of localtime_r() proves the presense
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of gmtime_r() which is a bit ugly but might work */
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struct tm keeptime;
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thistime = (struct tm *)localtime_r(&data->timevalue, &keeptime);
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thistime = (struct tm *)gmtime_r(&data->timevalue, &keeptime);
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#else
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thistime = localtime(&data->timevalue);
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thistime = gmtime(&data->timevalue);
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#endif
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if(NULL == thistime) {
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failf(data, "localtime() failed!");
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