| 1 | //! Serving CI artifacts (see `docs/ci-artifacts.md`). |
| 2 | //! |
| 3 | //! Three routes: |
| 4 | //! - `/{owner}/{repo}/ci/{run}/artifacts/{name}` — run-scoped download. |
| 5 | //! - `/{owner}/{repo}/artifacts/{rev}/{name}` — alias resolving `rev` (branch, |
| 6 | //! tag, or commit) to that commit's newest artifact; redirects to the |
| 7 | //! canonical location. With CI running on every push tip, a branch name |
| 8 | //! here is "latest on branch". |
| 9 | //! - `/{owner}/{repo}/artifacts/{rev}/{name}/{*path}` — browsable artifacts |
| 10 | //! (`browse: true`): files served like a pages site, with `index.html` |
| 11 | //! resolution. Same forge-origin caveat as pages (`docs/untrusted-mode.md` |
| 12 | //! §2). |
| 13 | //! |
| 14 | //! Access follows repository visibility, like CI logs and pages. |
| 15 | |
| 16 | use std::path::{ |
| 17 | Component, |
| 18 | PathBuf, |
| 19 | }; |
| 20 | |
| 21 | use anvil_core::{ |
| 22 | App, |
| 23 | CiArtifact, |
| 24 | ci, |
| 25 | storage, |
| 26 | }; |
| 27 | use anvil_git::browse; |
| 28 | use axum::{ |
| 29 | Router, |
| 30 | extract::{ |
| 31 | Path, |
| 32 | State, |
| 33 | }, |
| 34 | http::header, |
| 35 | response::{ |
| 36 | IntoResponse, |
| 37 | Redirect, |
| 38 | Response, |
| 39 | }, |
| 40 | routing::get, |
| 41 | }; |
| 42 | |
| 43 | use crate::{ |
| 44 | auth::CurrentUser, |
| 45 | pages::file_response, |
| 46 | ui::{ |
| 47 | not_found, |
| 48 | resolve_repo, |
| 49 | server_error, |
| 50 | }, |
| 51 | }; |
| 52 | |
| 53 | /// Mount the artifact routes. |
| 54 | pub fn routes(router: Router<App>) -> Router<App> { |
| 55 | router |
| 56 | .route( |
| 57 | "/{owner}/{repo}/ci/{run}/artifacts/{name}", |
| 58 | get(download_for_run), |
| 59 | ) |
| 60 | .route("/{owner}/{repo}/artifacts/{rev}/{name}", get(alias)) |
| 61 | .route( |
| 62 | "/{owner}/{repo}/artifacts/{rev}/{name}/{*path}", |
| 63 | get(browse_serve), |
| 64 | ) |
| 65 | } |
| 66 | |
| 67 | /// The on-disk location of a stored artifact (file or tarball form). |
| 68 | fn stored_path(app: &App, a: &CiArtifact) -> PathBuf { |
| 69 | let dir = storage::artifact_commit_dir(&app.config.artifacts_dir(), a.repo_id, &a.commit); |
| 70 | if a.is_dir && !a.browse { |
| 71 | dir.join(format!("{}.tar.gz", a.name)) |
| 72 | } else { |
| 73 | dir.join(&a.name) |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /// `GET /{owner}/{repo}/ci/{run}/artifacts/{name}` — download one artifact of |
| 78 | /// one run. Browsable artifacts redirect to their site root instead. |
| 79 | async fn download_for_run( |
| 80 | State(app): State<App>, |
| 81 | CurrentUser(user): CurrentUser, |
| 82 | Path((owner, repo, run_id, name)): Path<(String, String, i64, String)>, |
| 83 | ) -> Response { |
| 84 | let (_, meta) = match resolve_repo(&app, user.as_ref(), &owner, &repo).await { |
| 85 | Ok(v) => v, |
| 86 | Err(resp) => return resp, |
| 87 | }; |
| 88 | let artifacts = match ci::artifacts_for_run(&app.db, run_id).await { |
| 89 | Ok(a) => a, |
| 90 | Err(e) => return server_error(e), |
| 91 | }; |
| 92 | let Some(artifact) = artifacts |
| 93 | .into_iter() |
| 94 | .find(|a| a.name == name && a.repo_id == meta.id) |
| 95 | else { |
| 96 | return not_found("no such artifact"); |
| 97 | }; |
| 98 | if artifact.browse { |
| 99 | return Redirect::to(&format!( |
| 100 | "/{owner}/{repo}/artifacts/{}/{}/index.html", |
| 101 | artifact.commit, artifact.name |
| 102 | )) |
| 103 | .into_response(); |
| 104 | } |
| 105 | serve_download(&app, &artifact) |
| 106 | } |
| 107 | |
| 108 | /// `GET /{owner}/{repo}/artifacts/{rev}/{name}` — resolve `rev` and serve the |
| 109 | /// newest artifact for that commit (downloads directly; browsable artifacts |
| 110 | /// redirect to their site root under the same rev, keeping the URL stable). |
| 111 | async fn alias( |
| 112 | State(app): State<App>, |
| 113 | CurrentUser(user): CurrentUser, |
| 114 | Path((owner, repo, rev, name)): Path<(String, String, String, String)>, |
| 115 | ) -> Response { |
| 116 | let (repo_path, meta) = match resolve_repo(&app, user.as_ref(), &owner, &repo).await { |
| 117 | Ok(v) => v, |
| 118 | Err(resp) => return resp, |
| 119 | }; |
| 120 | let artifact = match lookup(&app, &repo_path, meta.id, &rev, &name).await { |
| 121 | Ok(a) => a, |
| 122 | Err(resp) => return resp, |
| 123 | }; |
| 124 | if artifact.browse { |
| 125 | return Redirect::to(&format!( |
| 126 | "/{owner}/{repo}/artifacts/{}/{}/index.html", |
| 127 | crate::ui::enc_ref(&rev), |
| 128 | artifact.name |
| 129 | )) |
| 130 | .into_response(); |
| 131 | } |
| 132 | serve_download(&app, &artifact) |
| 133 | } |
| 134 | |
| 135 | /// `GET /{owner}/{repo}/artifacts/{rev}/{name}/{*path}` — serve a file from a |
| 136 | /// browsable artifact's extracted tree. Directory paths resolve to their |
| 137 | /// `index.html`, redirecting to the trailing-slash form first so the site's |
| 138 | /// relative links work. |
| 139 | async fn browse_serve( |
| 140 | State(app): State<App>, |
| 141 | CurrentUser(user): CurrentUser, |
| 142 | Path((owner, repo, rev, name, path)): Path<(String, String, String, String, String)>, |
| 143 | ) -> Response { |
| 144 | let (repo_path, meta) = match resolve_repo(&app, user.as_ref(), &owner, &repo).await { |
| 145 | Ok(v) => v, |
| 146 | Err(resp) => return resp, |
| 147 | }; |
| 148 | let artifact = match lookup(&app, &repo_path, meta.id, &rev, &name).await { |
| 149 | Ok(a) => a, |
| 150 | Err(resp) => return resp, |
| 151 | }; |
| 152 | if !artifact.browse { |
| 153 | return not_found("not a browsable artifact"); |
| 154 | } |
| 155 | |
| 156 | let root = stored_path(&app, &artifact); |
| 157 | let trimmed = path.trim_end_matches('/'); |
| 158 | let Some(rel) = sanitize(trimmed) else { |
| 159 | return not_found("no such file"); |
| 160 | }; |
| 161 | |
| 162 | let file = root.join(&rel); |
| 163 | if file.is_file() { |
| 164 | return match std::fs::read(&file) { |
| 165 | Ok(bytes) => file_response(trimmed, bytes), |
| 166 | Err(e) => server_error(e), |
| 167 | }; |
| 168 | } |
| 169 | // A directory (or the artifact root, when `path` was only slashes): |
| 170 | // resolve its index.html behind a trailing-slash redirect. |
| 171 | let index = file.join("index.html"); |
| 172 | if index.is_file() { |
| 173 | if !path.ends_with('/') { |
| 174 | return Redirect::to(&format!( |
| 175 | "/{owner}/{repo}/artifacts/{}/{name}/{trimmed}/", |
| 176 | crate::ui::enc_ref(&rev) |
| 177 | )) |
| 178 | .into_response(); |
| 179 | } |
| 180 | return match std::fs::read(&index) { |
| 181 | Ok(bytes) => file_response("index.html", bytes), |
| 182 | Err(e) => server_error(e), |
| 183 | }; |
| 184 | } |
| 185 | not_found("no such file") |
| 186 | } |
| 187 | |
| 188 | /// Resolve `rev` to a commit and find that commit's newest artifact `name`. |
| 189 | async fn lookup( |
| 190 | app: &App, |
| 191 | repo_path: &std::path::Path, |
| 192 | repo_id: i64, |
| 193 | rev: &str, |
| 194 | name: &str, |
| 195 | ) -> Result<CiArtifact, Response> { |
| 196 | let commit = browse::resolve_commit(repo_path, rev) |
| 197 | .map_err(|_| not_found("no such branch, tag, or commit"))?; |
| 198 | ci::latest_artifact(&app.db, repo_id, &commit, name) |
| 199 | .await |
| 200 | .map_err(server_error)? |
| 201 | .ok_or_else(|| not_found("no artifact with that name for this commit")) |
| 202 | } |
| 203 | |
| 204 | /// Attachment response for a stored file/tarball artifact. |
| 205 | fn serve_download(app: &App, artifact: &CiArtifact) -> Response { |
| 206 | let path = stored_path(app, artifact); |
| 207 | let bytes = match std::fs::read(&path) { |
| 208 | Ok(b) => b, |
| 209 | Err(_) => return not_found("artifact data missing on disk"), |
| 210 | }; |
| 211 | let filename = path |
| 212 | .file_name() |
| 213 | .map(|n| n.to_string_lossy().into_owned()) |
| 214 | .unwrap_or_else(|| artifact.name.clone()); |
| 215 | ( |
| 216 | [ |
| 217 | (header::CONTENT_TYPE, "application/octet-stream".to_string()), |
| 218 | (header::X_CONTENT_TYPE_OPTIONS, "nosniff".to_string()), |
| 219 | ( |
| 220 | header::CONTENT_DISPOSITION, |
| 221 | format!("attachment; filename=\"{filename}\""), |
| 222 | ), |
| 223 | ], |
| 224 | bytes, |
| 225 | ) |
| 226 | .into_response() |
| 227 | } |
| 228 | |
| 229 | /// Normalize a request path to a safe relative path (no `..`, no absolutes, |
| 230 | /// no empty/`.` segments). `None` rejects the request. |
| 231 | fn sanitize(path: &str) -> Option<PathBuf> { |
| 232 | let mut out = PathBuf::new(); |
| 233 | for c in std::path::Path::new(path).components() { |
| 234 | match c { |
| 235 | Component::Normal(p) => out.push(p), |
| 236 | Component::CurDir => {} |
| 237 | _ => return None, |
| 238 | } |
| 239 | } |
| 240 | Some(out) |
| 241 | } |