From 1ab8d6ac1861e9405ae34af3deb681020c03e82d Mon Sep 17 00:00:00 2001 From: Eelco Dolstra Date: Wed, 8 Apr 2020 15:18:41 +0200 Subject: [PATCH] Downloader: Only write data to the sink on a 200 response Hopefully fixes #3278. --- src/libstore/download.cc | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/src/libstore/download.cc b/src/libstore/download.cc index af69699a8..bc875f653 100644 --- a/src/libstore/download.cc +++ b/src/libstore/download.cc @@ -83,8 +83,15 @@ struct CurlDownloader : public Downloader , callback(std::move(callback)) , finalSink([this](const unsigned char * data, size_t len) { if (this->request.dataCallback) { - writtenToSink += len; - this->request.dataCallback((char *) data, len); + long httpStatus = 0; + curl_easy_getinfo(req, CURLINFO_RESPONSE_CODE, &httpStatus); + + /* Only write data to the sink if this is a + successful response. */ + if (httpStatus == 0 || httpStatus == 200 || httpStatus == 201 || httpStatus == 206) { + writtenToSink += len; + this->request.dataCallback((char *) data, len); + } } else this->result.data->append((char *) data, len); })