the-distro/channel-scripts
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Ignore package listings with malformed UTF-8

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For example, https://cache.nixos.org/5q3s4vfwwd9n9499yg11ydziwxgn644m.ls.xz
contains the string "bokm<E5>l.alias". This causes nlohmann::json to
barf.
This commit is contained in:
Eelco Dolstra 2016-11-10 17:40:56 +01:00
parent 2176c939fc
commit 6883275653
1 changed files with 12 additions and 1 deletions
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13
generate-programs-index.cc
View file

@ -50,6 +50,7 @@ static const char * programsSchema = R"sql(
)sql";
MakeError(BadJSON, Error);
void mainWrapped(int argc, char * * argv)
{
@ -198,7 +199,15 @@ void mainWrapped(int argc, char * * argv)
auto now1 = std::chrono::steady_clock::now();
DownloadRequest req(binaryCacheUri + "/" + storePathToHash(storePath) + ".ls.xz");
req.showProgress = DownloadRequest::no;
auto ls = json::parse(*decompress("xz", *getDownloader()->download(req).data));
json ls;
try {
ls = json::parse(*decompress("xz", *getDownloader()->download(req).data));
} catch (std::invalid_argument & e) {
// FIXME: some filenames have non-UTF8 characters in them,
// which is not supported by nlohmann::json. So we have to
// skip the entire package.
throw BadJSON(e.what());
}
if (ls.value("version", 0) != 1)
throw Error("NAR index for ‘%s’ has an unsupported version", storePath);
@ -292,6 +301,8 @@ void mainWrapped(int argc, char * * argv)
} catch (DownloadError & e) {
printInfo("warning: no listing of %s (%s) in binary cache", package->attrPath, storePath);
} catch (BadJSON & e) {
printError("error: in %s (%s): %s", package->attrPath, storePath, e.what());
}
};