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CURLINFO_RETRY_AFTER: parse the Retry-After header value

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This is only the libcurl part that provides the information. There's no
user of the parsed value. This change includes three new tests for the
parser.

Ref: #3794
This commit is contained in:
Daniel Stenberg 2019-08-06 11:30:08 +02:00
parent 2bdb26a507
commit f933449d3b
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GPG key ID: 5CC908FDB71E12C2
14 changed files with 317 additions and 6 deletions
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13
lib/http.c
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@ -3953,6 +3953,19 @@ CURLcode Curl_http_readwrite_headers(struct Curl_easy *data,
if(result)
return result;
}
else if(checkprefix("Retry-After:", k->p)) {
/* Retry-After = HTTP-date / delay-seconds */
curl_off_t retry_after = 0; /* zero for unknown or "now" */
time_t date = curl_getdate(&k->p[12], NULL);
if(-1 == date) {
/* not a date, try it as a decimal number */
(void)curlx_strtoofft(&k->p[12], NULL, 10, &retry_after);
}
else
/* convert date to number of seconds into the future */
retry_after = date - time(NULL);
data->info.retry_after = retry_after; /* store it */
}
else if(!k->http_bodyless && checkprefix("Content-Range:", k->p)) {
/* Content-Range: bytes [num]-
Content-Range: bytes: [num]-