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Fix Nix to properly work with stores using a scoped IPv6 address

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According to RFC4007[1], IPv6 addresses can have a so-called zone_id
separated from the actual address with `%` as delimiter. In contrast to
Nix 2.3, the version on `master` doesn't recognize it as such:

    $ nix ping-store --store ssh://root@fe80::1%18 --experimental-features nix-command
    warning: 'ping-store' is a deprecated alias for 'store ping'
    error: --- Error ----------------------------------------------------------------- nix
    don't know how to open Nix store 'ssh://root@fe80::1%18'

I modified the IPv6 match-regex accordingly to optionally detect this
part of the address. As we don't seem to do anything special with it, I
decided to leave it as part of the URL for now.

Fixes #4490

[1] https://tools.ietf.org/html/rfc4007
This commit is contained in:
Maximilian Bosch 2021-03-16 18:51:17 +01:00
parent 66fa1c7375
commit ddcef3bcbb
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GPG key ID: 091DBF4D1FC46B8E
2 changed files with 19 additions and 1 deletions
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18
src/libutil/tests/url.cc
View file

@ -117,6 +117,24 @@ namespace nix {
ASSERT_EQ(parsed, expected);
}
TEST(parseURL, parseScopedRFC4007IPv6Address) {
auto s = "http://[fe80::818c:da4d:8975:415c\%enp0s25]:8080";
auto parsed = parseURL(s);
ParsedURL expected {
.url = "http://[fe80::818c:da4d:8975:415c\%enp0s25]:8080",
.base = "http://[fe80::818c:da4d:8975:415c\%enp0s25]:8080",
.scheme = "http",
.authority = "[fe80::818c:da4d:8975:415c\%enp0s25]:8080",
.path = "",
.query = (StringMap) { },
.fragment = "",
};
ASSERT_EQ(parsed, expected);
}
TEST(parseURL, parseIPv6Address) {
auto s = "http://[2a02:8071:8192:c100:311d:192d:81ac:11ea]:8080";
auto parsed = parseURL(s);

2
src/libutil/url-parts.hh
View file

@ -8,7 +8,7 @@ namespace nix {
// URI stuff.
const static std::string pctEncoded = "(?:%[0-9a-fA-F][0-9a-fA-F])";
const static std::string schemeRegex = "(?:[a-z][a-z0-9+.-]*)";
const static std::string ipv6AddressSegmentRegex = "[0-9a-fA-F:]+";
const static std::string ipv6AddressSegmentRegex = "[0-9a-fA-F:]+(?:%\\w+)?";
const static std::string ipv6AddressRegex = "(?:\\[" + ipv6AddressSegmentRegex + "\\]|" + ipv6AddressSegmentRegex + ")";
const static std::string unreservedRegex = "(?:[a-zA-Z0-9-._~])";
const static std::string subdelimsRegex = "(?:[!$&'\"()*+,;=])";