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path: root/src/libutil/url.cc
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2023-08-17libutil: fix double-encoding of URLsCole Helbling
If you have a URL that needs to be percent-encoded, such as `http://localhost:8181/test/+3d.tar.gz`, and try to lock that in a Nix flake such as the following: { inputs.test = { url = "http://localhost:8181/test/+3d.tar.gz"; flake = false; }; outputs = { test, ... }: { t = builtins.readFile test; }; } running `nix flake metadata` shows that the input URL has been incorrectly double-encoded (despite the flake.lock being correctly encoded only once): [...snip...] Inputs: └───test: http://localhost:8181/test/%252B3d.tar.gz?narHash=sha256-EFUdrtf6Rn0LWIJufrmg8q99aT3jGfLvd1//zaJEufY%3D (Notice the `%252B`? That's just `%2B` but percent-encoded again) With this patch, the double-encoding is gone; running `nix flake metadata` will show the proper URL: [...snip...] Inputs: └───test: http://localhost:8181/test/%2B3d.tar.gz?narHash=sha256-EFUdrtf6Rn0LWIJufrmg8q99aT3jGfLvd1//zaJEufY%3D --- As far as I can tell, this happens because Nix already percent-encodes the URL and stores this as the value of `inputs.asdf.url`. However, when Nix later tries to read this out of the eval state as a string (via `getStrAttr`), it has to run it through `parseURL` again to get the `ParsedURL` structure. Now, this itself isn't a problem -- the true problem arises when using `ParsedURL::to_string` later, which then _re-escapes the path_. It is at this point that what would have been `%2B` (`+`) becomes `%252B` (`%2B`).
2023-02-27url: make percentEncode stricter, expose and unit test itYorick van Pelt
2023-01-20Fix url parsing for urls using `file+`Eric Wolf
`file+https://example.org/test.mp4` should not be rejected with `unexpected authority`.
2022-05-19fetchTree: Allow fetching plain filesTony Olagbaiye
Add a new `file` fetcher type, which will fetch a plain file over http(s), or from the local file. Because plain `http(s)://` or `file://` urls can already correspond to `tarball` inputs (if the path ends-up with a know archive extension), the URL parsing logic is a bit convuluted in that: - {http,https,file}:// urls will be interpreted as either a tarball or a file input, depending on the extensions of the path part (so `https://foo.com/bar` will be a `file` input and `https://foo.com/bar.tar.gz` as a `tarball` input) - `file+{something}://` urls will be interpreted as `file` urls (with the `file+` part removed) - `tarball+{something}://` urls will be interpreted as `tarball` urls (with the `tarball+` part removed) Fix #3785 Co-Authored-By: Tony Olagbaiye <me@fron.io>
2021-07-01Prefer to throw specific errorsPamplemousse
Signed-off-by: Pamplemousse <xav.maso@gmail.com>
2020-09-21Don't include <regex> in header filesEelco Dolstra
This reduces compilation time by ~15 seconds (CPU time). Issue #4045.
2020-05-30Improve ref validity checking in fetchGitNikola Knezevic
The previous regex was too strict and did not match what git was allowing. It could lead to `fetchGit` not accepting valid branch names, even though they exist in a repository (for example, branch names containing `/`, which are pretty standard, like `release/1.0` branches). The new regex defines what a branch name should **NOT** contain. It takes the definitions from `refs.c` in https://github.com/git/git and `git help check-ref-format` pages. This change also introduces a test for ref name validity checking, which compares the result from Nix with the result of `git check-ref-format --branch`.
2020-04-07Backport libfetchers from the flakes branchEelco Dolstra
This provides a pluggable mechanism for defining new fetchers. It adds a builtin function 'fetchTree' that generalizes existing fetchers like 'fetchGit', 'fetchMercurial' and 'fetchTarball'. 'fetchTree' takes a set of attributes, e.g. fetchTree { type = "git"; url = "https://example.org/repo.git"; ref = "some-branch"; rev = "abcdef..."; } The existing fetchers are just wrappers around this. Note that the input attributes to fetchTree are the same as flake input specifications and flake lock file entries. All fetchers share a common cache stored in ~/.cache/nix/fetcher-cache-v1.sqlite. This replaces the ad hoc caching mechanisms in fetchGit and download.cc (e.g. ~/.cache/nix/{tarballs,git-revs*}). This also adds support for Git worktrees (c169ea59049f861aaba429f48b828d0820b74d1d).