Add HTTP responses to FileTransferErrors
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@ -122,7 +122,7 @@ struct curlFileTransfer : public FileTransfer
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if (requestHeaders) curl_slist_free_all(requestHeaders);
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try {
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if (!done)
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fail(FileTransferError(Interrupted, "download of '%s' was interrupted", request.uri));
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fail(FileTransferError(Interrupted, nullptr, "download of '%s' was interrupted", request.uri));
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} catch (...) {
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ignoreException();
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}
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@ -152,8 +152,18 @@ struct curlFileTransfer : public FileTransfer
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size_t realSize = size * nmemb;
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result.bodySize += realSize;
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if (!decompressionSink)
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if (!decompressionSink) {
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decompressionSink = makeDecompressionSink(encoding, finalSink);
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if (! successfulStatuses.count(getHTTPStatus())) {
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// In this case we want to construct a TeeSink, to keep
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// the response around (which we figure won't be big
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// like an actual download should be) to improve error
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// messages.
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decompressionSink = std::make_shared<TeeSink<ref<CompressionSink>>>(
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ref<CompressionSink>{ decompressionSink }
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);
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}
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}
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(*decompressionSink)((unsigned char *) contents, realSize);
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@ -408,16 +418,20 @@ struct curlFileTransfer : public FileTransfer
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attempt++;
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std::shared_ptr<std::string> response;
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if (decompressionSink)
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if (auto teeSink = std::dynamic_pointer_cast<TeeSink<std::shared_ptr<CompressionSink>>>(decompressionSink))
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response = teeSink->data;
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auto exc =
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code == CURLE_ABORTED_BY_CALLBACK && _isInterrupted
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? FileTransferError(Interrupted, fmt("%s of '%s' was interrupted", request.verb(), request.uri))
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? FileTransferError(Interrupted, response, fmt("%s of '%s' was interrupted", request.verb(), request.uri))
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: httpStatus != 0
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? FileTransferError(err,
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? FileTransferError(err, response,
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fmt("unable to %s '%s': HTTP error %d",
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request.verb(), request.uri, httpStatus)
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+ (code == CURLE_OK ? "" : fmt(" (curl error: %s)", curl_easy_strerror(code)))
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)
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: FileTransferError(err,
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: FileTransferError(err, response,
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fmt("unable to %s '%s': %s (%d)",
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request.verb(), request.uri, curl_easy_strerror(code), code));
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@ -675,7 +689,7 @@ struct curlFileTransfer : public FileTransfer
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auto s3Res = s3Helper.getObject(bucketName, key);
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FileTransferResult res;
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if (!s3Res.data)
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throw FileTransferError(NotFound, fmt("S3 object '%s' does not exist", request.uri));
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throw FileTransferError(NotFound, nullptr, fmt("S3 object '%s' does not exist", request.uri));
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res.data = s3Res.data;
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callback(std::move(res));
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#else
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@ -103,9 +103,10 @@ class FileTransferError : public Error
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{
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public:
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FileTransfer::Error error;
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std::shared_ptr<string> response; // intentionally optional
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template<typename... Args>
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FileTransferError(FileTransfer::Error error, const Args & ... args)
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: Error(args...), error(error)
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FileTransferError(FileTransfer::Error error, std::shared_ptr<string> response, const Args & ... args)
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: Error(args...), error(error), response(response)
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{ }
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};
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