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relative expires more conveniently

This commit is contained in:
Adam D. Ruppe 2020-03-16 21:19:57 -04:00
parent 16b55ca4c9
commit f71c360e83
1 changed files with 20 additions and 5 deletions
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25
cgi.d
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@ -1999,9 +1999,20 @@ class Cgi {
setCache(true); // need to enable caching so the date has meaning
responseIsPublic = isPublic;
responseExpiresRelative = false;
}
/// Sets a cache-control max-age header for whenFromNow, in seconds.
void setResponseExpiresRelative(int whenFromNow, bool isPublic = false) {
responseExpires = whenFromNow;
setCache(true); // need to enable caching so the date has meaning
responseIsPublic = isPublic;
responseExpiresRelative = true;
}
private long responseExpires = long.min;
private bool responseIsPublic = false;
private bool responseExpiresRelative = false;
/// This is like setResponseExpires, but it can be called multiple times. The setting most in the past is the one kept.
/// If you have multiple functions, they all might call updateResponseExpires about their own return value. The program
@ -2112,11 +2123,15 @@ class Cgi {
hd ~= "Location: " ~ responseLocation;
}
if(!noCache && responseExpires != long.min) { // an explicit expiration date is set
auto expires = SysTime(unixTimeToStdTime(cast(int)(responseExpires / 1000)), UTC());
hd ~= "Expires: " ~ printDate(
cast(DateTime) expires);
// FIXME: assuming everything is private unless you use nocache - generally right for dynamic pages, but not necessarily
hd ~= "Cache-Control: "~(responseIsPublic ? "public" : "private")~", no-cache=\"set-cookie, set-cookie2\"";
if(responseExpiresRelative) {
hd ~= "Cache-Control: "~(responseIsPublic ? "public" : "private")~", max-age="~to!string(responseExpires)~", no-cache=\"set-cookie, set-cookie2\"";
} else {
auto expires = SysTime(unixTimeToStdTime(cast(int)(responseExpires / 1000)), UTC());
hd ~= "Expires: " ~ printDate(
cast(DateTime) expires);
// FIXME: assuming everything is private unless you use nocache - generally right for dynamic pages, but not necessarily
hd ~= "Cache-Control: "~(responseIsPublic ? "public" : "private")~", no-cache=\"set-cookie, set-cookie2\"";
}
}
if(responseCookies !is null && responseCookies.length > 0) {
foreach(c; responseCookies)