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Avoid caches to get the most recent copy of the key. This is bug #1061

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This commit is contained in:
David Shaw 2009-05-28 16:20:49 +00:00
parent a7205a080c
commit bcf540f2d0
8 changed files with 148 additions and 14 deletions
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23
keyserver/gpgkeys_curl.c
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@ -117,6 +117,7 @@ main(int argc,char *argv[])
long follow_redirects=5;
char *proxy=NULL;
curl_version_info_data *curldata;
struct curl_slist *headers=NULL;
console=stderr;
@ -305,6 +306,26 @@ main(int argc,char *argv[])
curl_easy_setopt(curl,CURLOPT_SSL_VERIFYPEER,(long)opt->flags.check_cert);
curl_easy_setopt(curl,CURLOPT_CAINFO,opt->ca_cert_file);
/* Avoid caches to get the most recent copy of the key. This is bug
#1061. In pre-curl versions of the code, we didn't do it. Then
we did do it (as a curl default) until curl changed the default.
Now we're doing it again, but in such a way that changing
defaults in the future won't impact us. We set both the Pragma
and Cache-Control versions of the header, so we're good with both
HTTP 1.0 and 1.1. */
headers=curl_slist_append(headers,"Pragma: no-cache");
if(headers)
headers=curl_slist_append(headers,"Cache-Control: no-cache");
if(!headers)
{
fprintf(console,"gpgkeys: out of memory when building HTTP headers\n");
ret=KEYSERVER_NO_MEMORY;
goto fail;
}
curl_easy_setopt(curl,CURLOPT_HTTPHEADER,headers);
if(proxy)
curl_easy_setopt(curl,CURLOPT_PROXY,proxy);
@ -385,6 +406,8 @@ main(int argc,char *argv[])
free_ks_options(opt);
curl_slist_free_all(headers);
if(curl)
curl_easy_cleanup(curl);