forked from lix-project/lix
54 lines
1 KiB
C++
54 lines
1 KiB
C++
#pragma once
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#include "types.hh"
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#include "hash.hh"
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#include <string>
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namespace nix {
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struct DownloadOptions
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{
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std::string expectedETag;
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bool verifyTLS = true;
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enum { yes, no, automatic } showProgress = yes;
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bool head = false;
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size_t tries = 1;
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unsigned int baseRetryTimeMs = 100;
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};
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struct DownloadResult
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{
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bool cached;
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string etag;
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string effectiveUrl;
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std::shared_ptr<std::string> data;
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};
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class Store;
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struct Downloader
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{
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virtual DownloadResult download(string url, const DownloadOptions & options) = 0;
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Path downloadCached(ref<Store> store, const string & url, bool unpack, string name = "",
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const Hash & expectedHash = Hash(), string * effectiveUrl = nullptr);
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enum Error { NotFound, Forbidden, Misc, Transient };
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};
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ref<Downloader> makeDownloader();
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class DownloadError : public Error
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{
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public:
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Downloader::Error error;
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DownloadError(Downloader::Error error, const FormatOrString & fs)
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: Error(fs), error(error)
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{ }
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};
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bool isUri(const string & s);
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}
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