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remove Expect: 100-continue header when requesting an IMDSv2 access token

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This commit is contained in:
Kamil Jakrzewski 2021-09-08 20:45:15 +10:00 committed by Andrew Gaul
parent 9d1552a54e
commit b4edad86d6
1 changed files with 6 additions and 0 deletions
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6
src/curl.cpp
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@ -3028,6 +3028,12 @@ int S3fsCurl::GetIAMv2ApiToken()
std::string ttlstr = str(S3fsCurl::IAMv2_token_ttl);
requestHeaders = curl_slist_sort_insert(requestHeaders, S3fsCurl::IAMv2_token_ttl_hdr.c_str(),
ttlstr.c_str());
// Curl appends an "Expect: 100-continue" header to the token request,
// and aws responds with a 417 Expectation Failed. This ensures the
// Expect header is empty before the request is sent.
requestHeaders = curl_slist_sort_insert(requestHeaders, "Expect", "");
if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_PUT, true)){
return -EIO;
}