bool S3fsCurl::ResetHandle()

in src/curl.cpp [1798:1881]
78 lines of code
31 McCabe index (conditional complexity)

bool S3fsCurl::ResetHandle(bool lock_already_held)
{
    bool run_once;
    {
        AutoLock lock(&S3fsCurl::curl_warnings_lock);
        run_once = curl_warnings_once;
        curl_warnings_once = true;
    }

    curl_easy_reset(hCurl);
    if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_NOSIGNAL, 1)){
        return false;
    }
    if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_FOLLOWLOCATION, true)){
        return false;
    }
    if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CONNECTTIMEOUT, S3fsCurl::connect_timeout)){
        return false;
    }
    if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_NOPROGRESS, 0)){
        return false;
    }
    if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_PROGRESSFUNCTION, S3fsCurl::CurlProgress)){
        return false;
    }
    if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_PROGRESSDATA, hCurl)){
        return false;
    }
    // curl_easy_setopt(hCurl, CURLOPT_FORBID_REUSE, 1);
    if(CURLE_OK != curl_easy_setopt(hCurl, S3FS_CURLOPT_TCP_KEEPALIVE, 1) && !run_once){
        S3FS_PRN_WARN("The CURLOPT_TCP_KEEPALIVE option could not be set. For maximize performance you need to enable this option and you should use libcurl 7.25.0 or later.");
    }
    if(CURLE_OK != curl_easy_setopt(hCurl, S3FS_CURLOPT_SSL_ENABLE_ALPN, 0) && !run_once){
        S3FS_PRN_WARN("The CURLOPT_SSL_ENABLE_ALPN option could not be unset. OSS server does not support ALPN, then this option should be disabled to maximize performance. you need to use libcurl 7.36.0 or later.");
    }
    if(CURLE_OK != curl_easy_setopt(hCurl, S3FS_CURLOPT_KEEP_SENDING_ON_ERROR, 1) && !run_once){
        S3FS_PRN_WARN("The S3FS_CURLOPT_KEEP_SENDING_ON_ERROR option could not be set. For maximize performance you need to enable this option and you should use libcurl 7.51.0 or later.");
    }

    if(type != REQTYPE_IAMCRED && type != REQTYPE_IAMROLE){
        // REQTYPE_IAMCRED and REQTYPE_IAMROLE are always HTTP
        if(0 == S3fsCurl::ssl_verify_hostname){
            if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYHOST, 0)){
                return false;
            }
        }
        if(!S3fsCurl::curl_ca_bundle.empty()){
            if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_CAINFO, S3fsCurl::curl_ca_bundle.c_str())){
                return false;
            }
        }
    }
    if((S3fsCurl::is_dns_cache || S3fsCurl::is_ssl_session_cache) && S3fsCurl::hCurlShare){
        if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SHARE, S3fsCurl::hCurlShare)){
            return false;
        }
    }
    if(!S3fsCurl::is_cert_check) {
        S3FS_PRN_DBG("'no_check_certificate' option in effect.");
        S3FS_PRN_DBG("The server certificate won't be checked against the available certificate authorities.");
        if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SSL_VERIFYPEER, false)){
            return false;
        }
    }
    if(S3fsCurl::is_verbose){
        if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_VERBOSE, true)){
            return false;
        }
        if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_DEBUGFUNCTION, S3fsCurl::CurlDebugFunc)){
            return false;
        }
    }
    if(!cipher_suites.empty()) {
        if(CURLE_OK != curl_easy_setopt(hCurl, CURLOPT_SSL_CIPHER_LIST, cipher_suites.c_str())){
            return false;
        }
    }

    AutoLock lock(&S3fsCurl::curl_handles_lock, lock_already_held ? AutoLock::ALREADY_LOCKED : AutoLock::NONE);
    S3fsCurl::curl_times[hCurl]    = time(0);
    S3fsCurl::curl_progress[hCurl] = progress_t(-1, -1);

    return true;
}