OXYGENHUB
# 155cab142b63 oxygenhub / crates / hub / src / web / mod.rs
31.4 KiB · Rust · last changed Adding an assistant: provider presets and the endpoint's own model list 1 month ago source blame history raw
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//! Pages (hub spec §6): the router, the shell every template extends, the
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//! error page, viewer-aware lookups and askama filters. Handlers are thin:
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//! they resolve names, call the view layer under the repository lock, and
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//! render.
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mod admin;
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mod assistants;
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mod avatar;
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pub mod chain;
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mod device;
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pub mod edit;
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pub mod filters;
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pub mod flow;
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mod forks;
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pub mod help;
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pub mod history;
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pub mod home;
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mod inbox;
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pub mod issues;
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mod orgs;
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pub mod projects;
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pub mod proposals;
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mod recovery;
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mod refs;
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pub mod release_trust;
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pub mod releases;
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mod repo;
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mod repo_settings;
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mod resolve;
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pub mod runners;
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mod secrets;
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mod session;
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pub(crate) mod settings;
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mod signin;
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mod statics;
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mod variables;
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mod webhooks;
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mod wiki;
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use crate::auth::{self, Access, Role, Viewer};
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use crate::repos::RepoError;
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use crate::{db, Shared};
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use askama::Template;
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use axum::extract::DefaultBodyLimit;
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use axum::http::{header, StatusCode};
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use axum::response::{Html, IntoResponse, Redirect, Response};
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use axum::routing::{any, get, post};
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use axum::Router;
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use tower_http::compression::CompressionLayer;
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use tower_http::trace::TraceLayer;
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pub fn router(app: Shared) -> Router {
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    let push_limit = app.config.limits.push_body_limit.0 as usize;
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    Router::new()
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        .route("/", get(home::index))
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        .route("/explore", get(home::explore))
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        .route("/avatar/agent/{name}", get(avatar::agent))
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        .route("/avatar/{name}", get(avatar::avatar))
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        .route("/health", get(home::health))
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        .route("/about", get(home::about))
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        .route("/.well-known/oxyhub-key", get(home::hub_key))
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        .route("/.well-known/oxyhub-ca.pem", get(home::hub_ca))
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        .route("/.well-known/openid-configuration", get(crate::oidc::discovery))
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        .route("/.well-known/jwks.json", get(crate::oidc::jwks))
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        .route("/style.css", get(statics::style))
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        .route("/favicon.svg", get(statics::favicon))
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        .route("/favicon.ico", get(statics::favicon))
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        .route("/static/{*path}", get(statics::asset))
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        .route("/login", get(session::login_form).post(session::login))
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        .route("/device", get(device::form).post(device::answer))
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        .route("/logout", post(session::logout))
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        .route("/register", get(session::register_form).post(session::register))
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        .route("/settings", get(settings::profile).post(settings::update_profile))
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        .route("/settings/password", post(settings::change_password))
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        .route("/settings/appearance", post(settings::appearance))
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        .route("/settings/security", get(settings::security))
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        .route("/settings/security/totp/begin", post(settings::totp_begin))
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        .route("/settings/security/totp/enable", post(settings::totp_enable))
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        .route("/settings/security/totp/disable", post(settings::totp_disable))
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        .route("/settings/security/sessions", post(settings::sessions_reset))
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        .route("/settings/keys", get(settings::keys))
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        .route("/settings/keys/upload", post(settings::keys_upload))
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        .route("/settings/keys/verify", post(settings::keys_verify))
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        .route("/settings/keys/unlink", post(settings::keys_unlink))
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        .route("/settings/tokens", get(settings::tokens).post(settings::tokens_create))
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        .route("/settings/tokens/{id}/delete", post(settings::tokens_delete))
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        .route("/new", get(repo_settings::new_form).post(repo_settings::create))
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        .route("/orgs/new", get(orgs::new_form).post(orgs::create))
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        .route("/orgs/{name}/settings", get(orgs::settings).post(orgs::update))
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        .route("/orgs/{name}/settings/members", post(orgs::member))
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        .route("/orgs/{name}/settings/teams", post(orgs::team))
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        .route("/orgs/{name}/settings/hooks", post(orgs::hooks))
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        .route("/orgs/{name}/settings/assistants", post(orgs::assistants))
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        .route("/orgs/{name}/settings/assistants/models", post(orgs::assistant_models))
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        .route("/orgs/{name}/settings/variables", post(orgs::variables))
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        .route("/orgs/{name}/settings/secrets", post(orgs::secrets))
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        .route("/orgs/{name}/settings/runners/token", post(orgs::runner_token))
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        .route("/orgs/{name}/settings/runners/{id}/remove", post(orgs::runner_remove))
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        .route("/orgs/{name}/settings/hooks/{id}/deliveries", get(orgs::deliveries))
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        .route("/orgs/{name}/settings/hooks/{id}/redeliver/{delivery}", post(orgs::redeliver))
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        .route("/orgs/{name}/settings/avatar", post(orgs::avatar).layer(DefaultBodyLimit::max(avatar::MAX_BYTES + (64 << 10))))
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        .route("/settings/avatar", post(settings::avatar).layer(DefaultBodyLimit::max(avatar::MAX_BYTES + (64 << 10))))
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        .route("/notifications", get(inbox::inbox))
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        .route("/notifications/read", post(inbox::mark_read))
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        .route("/settings/notifications", get(inbox::unsubscribe).post(inbox::prefs))
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        .route("/search", get(inbox::search))
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        .route("/admin", get(admin::index))
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        .route("/admin/registration", post(admin::set_mode))
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        .route("/admin/invite", post(admin::invite))
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        .route("/admin/account", post(admin::account))
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        .route("/admin/storage", get(admin::storage).post(admin::maintain))
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        .route("/admin/runners", get(runners::list))
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        .route("/admin/runners/settings", get(runners::settings).post(runners::save_settings))
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        .route("/admin/runners/token", post(runners::new_token))
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        .route("/admin/runners/{id}", get(runners::show))
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        .route("/admin/runners/{id}/state", post(runners::set_state))
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        .route("/admin/runners/{id}/scope", post(runners::set_scope))
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        .route("/admin/runners/{id}/limits", post(runners::set_limits))
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        .route("/admin/mail", post(admin::set_mail))
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        .route("/admin/mail/test", post(admin::test_mail))
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        .route("/admin/assistants", post(admin::assistants))
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        .route("/admin/assistants/models", post(admin::assistant_models))
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        .route("/admin/signin", post(admin::signin))
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        .route("/login/{provider}", get(signin::start))
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        .route("/login/{provider}/callback", get(signin::callback))
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        .route("/settings/security/connect/{provider}", get(signin::connect))
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        .route("/settings/security/disconnect/{provider}", post(signin::disconnect))
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        .route("/admin/variables", post(admin::variables))
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        .route("/admin/secrets", post(admin::secrets))
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        .route("/admin/runners/{id}/remove", post(runners::remove))
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        .nest("/api/v1", crate::api::router(app.config.limits.asset_limit.0 as usize))
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        .route("/{owner}", get(home::owner))
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        .route("/{owner}/{name}", get(repo::overview))
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        .route("/{owner}/{name}/tree/{r}", get(repo::tree_root))
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        .route("/{owner}/{name}/tree/{r}/{*path}", get(repo::tree))
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        .route("/{owner}/{name}/file/{r}/{*path}", get(repo::file))
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        .route("/{owner}/{name}/function/{r}/{*path}", get(history::function))
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        .route("/{owner}/{name}/lanes/{r}", get(history::lanes))
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        .route("/{owner}/{name}/lanes/{r}/plan", post(history::plan))
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        .route("/{owner}/{name}/raw/{r}/{*path}", get(repo::raw_file))
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        .route("/{owner}/{name}/last/{r}", get(repo::last_changes))
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        .route("/{owner}/{name}/changes/{r}", get(history::history))
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        .route("/{owner}/{name}/change/{hash}", get(history::change))
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        .route("/apt", get(crate::apt::home))
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        .route("/apt/{file}", get(crate::apt::key))
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        .route("/apt/dists/{suite}/{*rest}", get(crate::apt::dists))
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        .route("/apt/pool/{*path}", get(crate::apt::pool))
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        .route("/help", get(help::help))
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        .route("/projects/{owner}", get(projects::list).post(projects::create))
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        .route("/projects/{owner}/{number}", get(projects::show).post(projects::act))
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        .route("/notifications/thread", post(inbox::thread))
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        .route("/notifications/open/{id}", get(inbox::open))
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        .route("/login/reset", get(recovery::request_form).post(recovery::request))
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        .route("/login/reset/{secret}", get(recovery::new_password_form).post(recovery::set_new_password))
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        .route("/verify/{secret}", get(recovery::verify))
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        .route("/settings/email/verify", post(settings::resend_verification))
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        .route("/{owner}/{name}/compare", get(history::compare_index))
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        .route("/{owner}/{name}/compare/{spec}", get(history::compare))
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        .route("/{owner}/{name}/bookmarks", get(refs::bookmarks))
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        .route("/{owner}/{name}/bookmarks/delete", post(refs::delete_bookmark))
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        .route("/{owner}/{name}/tags", get(refs::tags))
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        .route("/{owner}/{name}/conflicts", get(refs::conflicts))
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        .route("/{owner}/{name}/trust", get(refs::trust))
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        .route("/{owner}/{name}/pushes", get(refs::pushes))
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        .route("/{owner}/{name}/fork", get(forks::form).post(forks::create))
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        .route("/{owner}/{name}/forks", get(forks::list))
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        .route("/{owner}/{name}/settings", get(repo_settings::settings).post(repo_settings::update))
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        .route("/{owner}/{name}/settings/collaborators", post(repo_settings::collaborator))
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        .route("/{owner}/{name}/settings/delete", post(repo_settings::delete))
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        .route("/{owner}/{name}/settings/transfer", post(repo_settings::transfer))
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        .route("/{owner}/{name}/settings/archive", post(repo_settings::archive))
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        .route("/{owner}/{name}/settings/wiki/delete", post(repo_settings::wiki_delete))
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        .route("/{owner}/{name}/wiki", get(wiki::home))
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        .route("/{owner}/{name}/wiki/_pages", get(wiki::pages))
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        .route("/{owner}/{name}/wiki/_new", get(wiki::new_form))
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        .route("/{owner}/{name}/wiki/_raw/{*path}", get(wiki::raw))
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        .route("/{owner}/{name}/wiki/{slug}", get(wiki::show))
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        .route("/{owner}/{name}/wiki/{slug}/edit", get(wiki::edit_form).post(wiki::save))
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        .route("/{owner}/{name}/wiki/{slug}/history", get(wiki::history))
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        .route("/{owner}/{name}/wiki/{slug}/delete", post(wiki::delete))
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        .route("/{owner}/{name}/settings/requirements", post(repo_settings::requirements))
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        .route("/{owner}/{name}/proposals", get(proposals::list))
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        .route("/{owner}/{name}/proposals/new", get(proposals::new_form).post(proposals::create))
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        .route("/{owner}/{name}/proposals/new/draft", post(proposals::new_draft))
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        .route("/{owner}/{name}/proposal/{number}", get(proposals::show))
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        .route("/{owner}/{name}/proposal/{number}/comment", post(proposals::comment))
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        .route("/{owner}/{name}/proposal/{number}/comment/{id}/resolve", post(proposals::resolve_comment))
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        .route("/{owner}/{name}/proposal/{number}/review", post(proposals::review))
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        .route("/{owner}/{name}/proposal/{number}/reviewers", post(proposals::reviewers))
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        .route("/{owner}/{name}/proposal/{number}/assistant", post(proposals::assistant))
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        .route("/{owner}/{name}/proposal/{number}/draft", post(proposals::draft))
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        .route("/{owner}/{name}/proposal/{number}/edit", post(proposals::edit))
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        .route("/{owner}/{name}/proposal/{number}/state", post(proposals::state))
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        .route("/{owner}/{name}/proposal/{number}/land", post(proposals::land))
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        .route("/{owner}/{name}/proposal/{number}/labels", post(proposals::set_labels))
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        .route("/{owner}/{name}/proposal/{number}/project", post(projects::place_proposal))
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        .route("/{owner}/{name}/issue/{number}/project", post(projects::place_issue))
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        .route("/{owner}/{name}/proposal/{number}/events", get(proposals::events))
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        .route("/{owner}/{name}/settings/hooks", post(repo_settings::hooks))
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        .route("/{owner}/{name}/settings/assistants", post(repo_settings::assistants))
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        .route("/{owner}/{name}/settings/assistants/models", post(repo_settings::assistant_models))
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        .route("/{owner}/{name}/settings/variables", post(repo_settings::variables))
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        .route("/{owner}/{name}/settings/secrets", post(repo_settings::secrets))
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        .route("/{owner}/{name}/settings/hooks/{id}/deliveries", get(repo_settings::deliveries))
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        .route("/{owner}/{name}/settings/hooks/{id}/redeliver/{delivery}", post(repo_settings::redeliver))
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        .route("/{owner}/{name}/settings/checks", post(repo_settings::required_checks))
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        .route("/{owner}/{name}/watch", post(issues::watch))
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        .route("/{owner}/{name}/star", post(issues::star))
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        .route("/{owner}/{name}/edit/{r}", post(edit::save))
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        .route("/{owner}/{name}/edit/{r}/{*path}", get(edit::edit_form))
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        .route("/{owner}/{name}/resolve/{bookmark}/{*path}", get(resolve::form).post(resolve::save))
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        .route("/{owner}/{name}/resolve-live/{bookmark}/{*path}", get(resolve::live_events).post(resolve::live_choose))
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        .route("/{owner}/{name}/newfile/{r}", get(edit::new_form))
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        .route("/{owner}/{name}/flow", get(flow::runs))
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        .route("/{owner}/{name}/flow/badge.svg", get(flow::badge))
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        .route("/{owner}/{name}/flow/{id}", get(flow::run))
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        .route("/{owner}/{name}/flow/{id}/live", get(flow::live))
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        .route("/{owner}/{name}/flow/start", post(flow::start))
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        .route("/{owner}/{name}/flow/{id}/rerun", post(flow::rerun))
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        .route("/{owner}/{name}/flow/{id}/cancel", post(flow::cancel))
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        .route("/{owner}/{name}/flow/stamp/{r}", get(flow::stamp))
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        .route("/{owner}/{name}/flow/at/{r}", get(flow::at))
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        .route("/{owner}/{name}/receipts/{attest}", get(flow::receipt_file))
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        .route("/{owner}/{name}/flow/{id}/artifacts/{job}/{artifact}", get(flow::artifact_file))
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        .route("/{owner}/{name}/flow/{id}/artifacts/{job}/{artifact}/attach", post(flow::attach))
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        .route("/{owner}/{name}/releases", get(releases::list))
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        .route("/{owner}/{name}/releases/new", get(releases::new_form).post(releases::create))
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        .route("/{owner}/{name}/releases/tag/{*tag}", get(releases::show))
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        .route("/{owner}/{name}/releases/trust/{*tag}", get(release_trust::page))
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        .route("/{owner}/{name}/releases/edit/{id}", post(releases::edit))
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        .route(
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            "/{owner}/{name}/releases/upload/{id}",
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            post(releases::upload).layer(DefaultBodyLimit::max(app.config.limits.asset_limit.0 as usize + (1 << 20))),
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        )
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        .route("/{owner}/{name}/asset/{id}/{file}", get(releases::download))
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        .route("/{owner}/{name}/archive", get(releases::source_archive))
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        .route("/{owner}/{name}/search", get(repo::code_search))
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        .route("/{owner}/{name}/info/{*rest}", any(git_info))
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        .route("/{owner}/{name}/HEAD", get(git_head))
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        .route("/{owner}/{name}/objects/{*rest}", get(git_objects))
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        .route("/{owner}/{name}/git-upload-pack", post(git_upload_pack))
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        .route("/{owner}/{name}/git-receive-pack", post(git_receive_pack))
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        .route("/{owner}/{name}/settings/mirror", post(repo_settings::mirror))
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        .route("/{owner}/{name}/settings/flow", post(repo_settings::flow))
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        .route("/{owner}/{name}/settings/runners/token", post(repo_settings::runner_token))
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        .route("/{owner}/{name}/settings/runners/{id}/remove", post(repo_settings::runner_remove))
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        .route("/{owner}/{name}/issues", get(issues::list))
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        .route("/{owner}/{name}/issues/new", get(issues::new_form).post(issues::create))
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        .route("/{owner}/{name}/issue/{number}", get(issues::show))
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        .route("/{owner}/{name}/issue/{number}/comment", post(issues::comment))
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        .route("/{owner}/{name}/issue/{number}/comment/{id}/delete", post(issues::delete_comment))
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        .route("/{owner}/{name}/issue/{number}/edit", post(issues::edit))
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        .route("/{owner}/{name}/issue/{number}/state", post(issues::state))
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        .route("/{owner}/{name}/issue/{number}/labels", post(issues::set_labels))
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        .route("/{owner}/{name}/issue/{number}/assign", post(issues::assign))
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        .route("/{owner}/{name}/issue/{number}/milestone", post(issues::set_milestone))
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        .route("/{owner}/{name}/issue/{number}/subscribe", post(issues::subscribe))
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        .route("/{owner}/{name}/labels", get(issues::labels).post(issues::save_label))
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        .route("/{owner}/{name}/milestones", get(issues::milestones).post(issues::save_milestone))
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        .route("/{owner}/{name}/oxy/v1/{endpoint}", any(crate::protocol::dispatch).layer(DefaultBodyLimit::max(push_limit)))
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        .fallback(not_found)
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        .layer(axum::middleware::from_fn_with_state(app.clone(), same_origin))
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        .layer(CompressionLayer::new())
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        .layer(TraceLayer::new_for_http())
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        .with_state(app)
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}
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// Git's smart HTTP paths under `/{owner}/{name}.git/`, forwarded to the
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// mirror (hub spec §14).
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async fn git_info(
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    st: axum::extract::State<Shared>,
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    axum::extract::Path((o, n, rest)): axum::extract::Path<(String, String, String)>,
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    m: axum::http::Method,
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    q: axum::extract::RawQuery,
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    h: axum::http::HeaderMap,
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    b: axum::body::Bytes,
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) -> Response {
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    crate::mirror::serve(st, axum::extract::Path((o, n, format!("info/{rest}"))), m, q, h, b).await
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}
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async fn git_head(
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    st: axum::extract::State<Shared>,
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    axum::extract::Path((o, n)): axum::extract::Path<(String, String)>,
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    m: axum::http::Method,
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    q: axum::extract::RawQuery,
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    h: axum::http::HeaderMap,
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    b: axum::body::Bytes,
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) -> Response {
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    crate::mirror::serve(st, axum::extract::Path((o, n, "HEAD".into())), m, q, h, b).await
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}
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async fn git_objects(
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    st: axum::extract::State<Shared>,
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    axum::extract::Path((o, n, rest)): axum::extract::Path<(String, String, String)>,
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    m: axum::http::Method,
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    q: axum::extract::RawQuery,
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    h: axum::http::HeaderMap,
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    b: axum::body::Bytes,
299 
) -> Response {
300 
    crate::mirror::serve(st, axum::extract::Path((o, n, format!("objects/{rest}"))), m, q, h, b).await
301 
}
302
303 
async fn git_upload_pack(
304 
    st: axum::extract::State<Shared>,
305 
    axum::extract::Path((o, n)): axum::extract::Path<(String, String)>,
306 
    m: axum::http::Method,
307 
    q: axum::extract::RawQuery,
308 
    h: axum::http::HeaderMap,
309 
    b: axum::body::Bytes,
310 
) -> Response {
311 
    crate::mirror::serve(st, axum::extract::Path((o, n, "git-upload-pack".into())), m, q, h, b).await
312 
}
313
314 
async fn git_receive_pack(
315 
    st: axum::extract::State<Shared>,
316 
    axum::extract::Path((o, n)): axum::extract::Path<(String, String)>,
317 
    m: axum::http::Method,
318 
    q: axum::extract::RawQuery,
319 
    h: axum::http::HeaderMap,
320 
    b: axum::body::Bytes,
321 
) -> Response {
322 
    crate::mirror::serve(st, axum::extract::Path((o, n, "git-receive-pack".into())), m, q, h, b).await
323 
}
324
19bb31ff Andy McCall ↶ 325 
/// Cross-site form posts are refused (hub spec §15.2): a browser that
326 
/// sends `Origin` or `Sec-Fetch-Site` must name this site. Protocol and
327 
/// API clients send neither.
328 
async fn same_origin(
329 
    axum::extract::State(app): axum::extract::State<Shared>,
330 
    req: axum::extract::Request,
331 
    next: axum::middleware::Next,
332 
) -> Response {
333 
    if req.method() != axum::http::Method::GET && req.method() != axum::http::Method::HEAD {
334 
        let headers = req.headers();
335 
        if headers.get("sec-fetch-site").and_then(|v| v.to_str().ok()) == Some("cross-site") {
336 
            return (StatusCode::FORBIDDEN, "cross-site request refused").into_response();
337 
        }
338 
        if let Some(origin) = headers.get(header::ORIGIN).and_then(|v| v.to_str().ok()) {
339 
            let host_of = |u: &str| u.split("://").nth(1).unwrap_or(u).split('/').next().unwrap_or("").to_ascii_lowercase();
340 
            let request_host = headers.get(header::HOST).and_then(|v| v.to_str().ok()).map(|h| h.to_ascii_lowercase());
341 
            let ok = host_of(origin) == host_of(app.config.base_url()) || request_host.as_deref() == Some(host_of(origin).as_str());
342 
            if !ok && origin != "null" {
343 
                return (StatusCode::FORBIDDEN, "cross-site request refused").into_response();
344 
            }
345 
        }
346 
    }
347 
    next.run(req).await
348 
}
349
d23464c0 Andy McCall ↶ 350 
/// What every page's chrome needs.
351 
#[derive(Clone, Debug)]
352 
pub struct Shell {
353 
    pub site: String,
354 
    pub base_url: String,
355 
    pub path: String,
356 
    pub version: &'static str,
e9bfea8e Andy McCall ↶ 357 
    /// What was built: `oxy describe` at deploy, a Flow build's heads, or "local build".
358 
    pub build: &'static str,
19bb31ff Andy McCall ↶ 359 
    /// The signed-in username, if any.
360 
    pub user: Option<String>,
361 
    pub is_admin: bool,
362 
    pub csrf: String,
18e381ea Andy McCall ↶ 363 
    pub unread: i64,
d23464c0 Andy McCall ↶ 364 
}
365
366 
impl Shell {
19bb31ff Andy McCall ↶ 367 
    pub fn new(app: &Shared, path: &str, viewer: &Viewer) -> Shell {
d23464c0 Andy McCall ↶ 368 
        Shell {
369 
            site: app.config.site.name.clone(),
370 
            base_url: app.config.base_url().to_string(),
371 
            path: path.to_string(),
372 
            version: env!("CARGO_PKG_VERSION"),
e9bfea8e Andy McCall ↶ 373 
            build: env!("OXY_BUILD_ID"),
19bb31ff Andy McCall ↶ 374 
            user: viewer.account().map(|a| a.username.clone()),
375 
            is_admin: viewer.is_admin(),
376 
            csrf: viewer.csrf().to_string(),
18e381ea Andy McCall ↶ 377 
            unread: viewer.0.as_ref().map(|v| v.unread).unwrap_or(0),
d23464c0 Andy McCall ↶ 378 
        }
379 
    }
19bb31ff Andy McCall ↶ 380
381 
    pub fn anonymous(app: &Shared, path: &str) -> Shell {
382 
        Shell::new(app, path, &Viewer(None))
383 
    }
d23464c0 Andy McCall ↶ 384 
}
385
386 
/// The repository chrome: tabs and counts.
387 
#[derive(Clone, Debug)]
388 
pub struct RepoShell {
389 
    pub owner: String,
390 
    pub name: String,
391 
    pub url: String,
392 
    pub description: String,
393 
    pub default_bookmark: String,
394 
    pub visibility: String,
395 
    pub tab: &'static str,
396 
    pub clone_url: String,
19bb31ff Andy McCall ↶ 397 
    /// The viewer's role, for showing settings and write actions.
398 
    pub role: Option<Role>,
1ac84c62 Andy McCall ↶ 399 
    /// Open issues and proposals, shown on their tabs.
400 
    pub open_issues: i64,
401 
    pub open_proposals: i64,
d0fbea2e Andy McCall ↶ 402 
    /// Read-only (#108).
403 
    pub archived: bool,
66fd9d6b Andy McCall ↶ 404 
    /// Whether the repository has a wiki (§6.11).
405 
    pub wiki: bool,
d23464c0 Andy McCall ↶ 406 
}
407
408 
impl RepoShell {
409 
    pub fn new(app: &Shared, row: &db::repos::RepoRow, tab: &'static str) -> RepoShell {
410 
        RepoShell {
411 
            owner: row.owner.clone(),
412 
            name: row.name.clone(),
413 
            url: format!("/{}/{}", row.owner, row.name),
414 
            description: row.description.clone(),
415 
            default_bookmark: row.default_bookmark.clone(),
416 
            visibility: row.visibility.clone(),
417 
            tab,
418 
            clone_url: format!("{}/{}/{}", app.config.base_url(), row.owner, row.name),
19bb31ff Andy McCall ↶ 419 
            role: None,
1ac84c62 Andy McCall ↶ 420 
            open_issues: row.open_issues,
421 
            open_proposals: row.open_proposals,
d0fbea2e Andy McCall ↶ 422 
            archived: row.archived,
66fd9d6b Andy McCall ↶ 423 
            wiki: crate::repos::RepoName::new(&row.owner, &row.name).is_some_and(|n| app.wikis.exists(&n)),
d23464c0 Andy McCall ↶ 424 
        }
425 
    }
19bb31ff Andy McCall ↶ 426
427 
    pub fn with_role(mut self, role: Role) -> RepoShell {
428 
        self.role = Some(role);
429 
        self
430 
    }
431
432 
    pub fn can(&self, access: Access) -> bool {
433 
        auth::roles::allows(self.role, access)
434 
    }
435
436 
    pub fn can_maintain(&self) -> bool {
437 
        self.can(Access::Maintain)
438 
    }
d23464c0 Andy McCall ↶ 439 
}
440
441 
/// Render a template as an HTML response.
1ac84c62 Andy McCall ↶ 442 
/// One page of a long list: which page, how many, and links that keep
443 
/// the rest of the query.
444 
#[derive(Clone, Debug)]
445 
pub struct Pager {
446 
    pub page: usize,
447 
    pub pages: usize,
448 
    pub total: usize,
449 
    /// The query without `page`, each pair encoded, joined with `&`.
450 
    query: String,
451 
}
452
453 
impl Pager {
454 
    pub const PER_PAGE: usize = 25;
455
456 
    /// `page` counts from 1; out-of-range pages clamp to the last.
457 
    pub fn new(total: usize, page: Option<usize>, query: &[(&str, &str)]) -> Pager {
458 
        let pages = total.div_ceil(Self::PER_PAGE).max(1);
459 
        let page = page.unwrap_or(1).clamp(1, pages);
460 
        let query = query
461 
            .iter()
462 
            .filter(|(_, v)| !v.is_empty())
463 
            .map(|(k, v)| format!("{k}={}", settings::urlencode(v).replace('/', "%2F")))
464 
            .collect::<Vec<_>>()
465 
            .join("&");
466 
        Pager { page, pages, total, query }
467 
    }
468
469 
    /// This page's items.
470 
    pub fn slice<T>(&self, all: Vec<T>) -> Vec<T> {
471 
        all.into_iter().skip((self.page - 1) * Self::PER_PAGE).take(Self::PER_PAGE).collect()
472 
    }
473
474 
    pub fn url(&self, page: usize) -> String {
475 
        if self.query.is_empty() {
476 
            format!("?page={page}")
477 
        } else {
478 
            format!("?{}&page={page}", self.query)
479 
        }
480 
    }
481
482 
    /// The same query with another sort, back on page one.
483 
    pub fn sorted(&self, sort: &str) -> String {
484 
        let rest: Vec<&str> = self.query.split('&').filter(|p| !p.is_empty() && !p.starts_with("sort=")).collect();
485 
        let mut q = rest.join("&");
486 
        if !q.is_empty() {
487 
            q.push('&');
488 
        }
489 
        format!("?{q}sort={sort}")
490 
    }
491 
}
492
d23464c0 Andy McCall ↶ 493 
pub struct Page<T: Template>(pub T);
494
495 
impl<T: Template> IntoResponse for Page<T> {
496 
    fn into_response(self) -> Response {
497 
        match self.0.render() {
498 
            Ok(s) => Html(s).into_response(),
499 
            Err(e) => {
500 
                tracing::error!("template: {e}");
501 
                (StatusCode::INTERNAL_SERVER_ERROR, "template error").into_response()
502 
            }
503 
        }
504 
    }
505 
}
506
507 
#[derive(Template)]
508 
#[template(path = "error.html")]
509 
struct ErrorPage {
510 
    shell: Shell,
511 
    status: u16,
512 
    title: String,
513 
    detail: String,
514 
}
515
19bb31ff Andy McCall ↶ 516 
/// A page-level failure, rendered inside the shell, or a redirect.
d23464c0 Andy McCall ↶ 517 
#[derive(Debug)]
518 
pub struct Error {
519 
    pub status: StatusCode,
520 
    pub detail: String,
19bb31ff Andy McCall ↶ 521 
    shell: Option<Box<Shell>>,
522 
    redirect: Option<String>,
d23464c0 Andy McCall ↶ 523 
}
524
525 
impl Error {
19bb31ff Andy McCall ↶ 526 
    pub fn redirect(to: String) -> Error {
527 
        Error { status: StatusCode::SEE_OTHER, detail: String::new(), shell: None, redirect: Some(to) }
528 
    }
529
d23464c0 Andy McCall ↶ 530 
    pub fn not_found(shell: Shell) -> Error {
19bb31ff Andy McCall ↶ 531 
        Error {
532 
            status: StatusCode::NOT_FOUND,
533 
            detail: "There is nothing at this address.".into(),
534 
            shell: Some(Box::new(shell)),
535 
            redirect: None,
536 
        }
d23464c0 Andy McCall ↶ 537 
    }
538
539 
    pub fn bad(shell: Shell, detail: impl Into<String>) -> Error {
19bb31ff Andy McCall ↶ 540 
        Error { status: StatusCode::BAD_REQUEST, detail: detail.into(), shell: Some(Box::new(shell)), redirect: None }
d23464c0 Andy McCall ↶ 541 
    }
542
543 
    pub fn from_repo(shell: Shell, e: RepoError) -> Error {
544 
        match e {
545 
            RepoError::NotFound => Error::not_found(shell),
19bb31ff Andy McCall ↶ 546 
            RepoError::Oxy(oxy_core::repo::RepoError::Msg(m)) => {
547 
                Error { status: StatusCode::NOT_FOUND, detail: m, shell: Some(Box::new(shell)), redirect: None }
548 
            }
549 
            other => {
550 
                Error { status: StatusCode::INTERNAL_SERVER_ERROR, detail: other.to_string(), shell: Some(Box::new(shell)), redirect: None }
551 
            }
d23464c0 Andy McCall ↶ 552 
        }
553 
    }
554
555 
    pub fn from_db(shell: Shell, e: sqlx::Error) -> Error {
19bb31ff Andy McCall ↶ 556 
        Error { status: StatusCode::INTERNAL_SERVER_ERROR, detail: e.to_string(), shell: Some(Box::new(shell)), redirect: None }
d23464c0 Andy McCall ↶ 557 
    }
558 
}
559
560 
impl IntoResponse for Error {
561 
    fn into_response(self) -> Response {
19bb31ff Andy McCall ↶ 562 
        if let Some(to) = self.redirect {
563 
            return Redirect::to(&to).into_response();
564 
        }
d23464c0 Andy McCall ↶ 565 
        let title = match self.status {
566 
            StatusCode::NOT_FOUND => "Not found",
567 
            StatusCode::BAD_REQUEST => "Bad request",
568 
            _ => "Something went wrong",
569 
        };
570 
        if self.status.is_server_error() {
571 
            tracing::error!("{}", self.detail);
572 
        }
19bb31ff Andy McCall ↶ 573 
        let shell = self.shell.map(|b| *b).unwrap_or(Shell {
8d2caf12 Andy McCall ↶ 574 
            site: "OxygenHub".into(),
19bb31ff Andy McCall ↶ 575 
            base_url: String::new(),
576 
            path: String::new(),
577 
            version: "",
e9bfea8e Andy McCall ↶ 578 
            build: "",
19bb31ff Andy McCall ↶ 579 
            user: None,
580 
            is_admin: false,
581 
            csrf: String::new(),
18e381ea Andy McCall ↶ 582 
            unread: 0,
19bb31ff Andy McCall ↶ 583 
        });
d23464c0 Andy McCall ↶ 584 
        let page = ErrorPage { shell, status: self.status.as_u16(), title: title.into(), detail: self.detail };
585 
        match page.render() {
586 
            Ok(s) => (self.status, Html(s)).into_response(),
587 
            Err(_) => (self.status, title).into_response(),
588 
        }
589 
    }
590 
}
591
19bb31ff Andy McCall ↶ 592 
async fn not_found(axum::extract::State(app): axum::extract::State<Shared>, viewer: Viewer, uri: axum::http::Uri) -> Response {
593 
    Error::not_found(Shell::new(&app, uri.path(), &viewer)).into_response()
d23464c0 Andy McCall ↶ 594 
}
595
596 
/// A raw file response with a safe content type (hub spec §15.2).
597 
pub fn raw(bytes: Vec<u8>, name: &str, inline_image: bool) -> Response {
598 
    let mime = mime_of(name);
599 
    let disposition = if inline_image && mime.starts_with("image/") { "inline" } else { "attachment" };
600 
    (
601 
        [
602 
            (header::CONTENT_TYPE, mime.to_string()),
603 
            (header::CONTENT_DISPOSITION, format!("{disposition}; filename=\"{}\"", name.replace('"', ""))),
604 
            (header::X_CONTENT_TYPE_OPTIONS, "nosniff".to_string()),
605 
        ],
606 
        bytes,
607 
    )
608 
        .into_response()
609 
}
610
611 
pub fn mime_of(name: &str) -> &'static str {
612 
    match name.rsplit('.').next().map(|e| e.to_ascii_lowercase()).as_deref() {
613 
        Some("png") => "image/png",
614 
        Some("jpg" | "jpeg") => "image/jpeg",
615 
        Some("gif") => "image/gif",
616 
        Some("webp") => "image/webp",
617 
        Some("svg") => "image/svg+xml",
618 
        Some("pdf") => "application/pdf",
619 
        Some(
620 
            "txt" | "md" | "rs" | "toml" | "json" | "yml" | "yaml" | "c" | "h" | "cpp" | "hpp" | "py" | "js" | "ts" | "html" | "css" | "sh",
621 
        ) => "text/plain; charset=utf-8",
622 
        _ => "application/octet-stream",
623 
    }
624 
}
625
19bb31ff Andy McCall ↶ 626 
/// Resolve `{owner}/{name}` for the viewer with at least `access`, or 404:
627 
/// a repository the viewer may not see does not exist for them (hub spec
628 
/// §4.4). Returns the viewer's role too.
629 
pub async fn lookup_role(
630 
    app: &Shared,
631 
    shell: &Shell,
632 
    viewer: &Viewer,
633 
    owner: &str,
634 
    name: &str,
635 
    access: Access,
636 
) -> Result<(crate::repos::RepoName, db::repos::RepoRow, Role), Error> {
d23464c0 Andy McCall ↶ 637 
    let repo = crate::repos::RepoName::new(owner, name).ok_or_else(|| Error::not_found(shell.clone()))?;
d0fbea2e Andy McCall ↶ 638 
    let row = match db::repos::get(&app.db, owner, name).await.map_err(|e| Error::from_db(shell.clone(), e))? {
639 
        Some(row) => row,
640 
        None => {
641 
            // A transferred repository: the old URL goes to the new one (#108),
642 
            // the rest of the path kept, when the viewer may see it.
643 
            let moved = db::repos::moved_to(&app.db, owner, name).await.map_err(|e| Error::from_db(shell.clone(), e))?;
644 
            let Some(moved) = moved else { return Err(Error::not_found(shell.clone())) };
645 
            let role = auth::roles::role_for(&app.db, viewer.account(), &moved).await.map_err(|e| Error::from_db(shell.clone(), e))?;
646 
            if !auth::roles::allows(role, Access::Read) {
647 
                return Err(Error::not_found(shell.clone()));
648 
            }
649 
            let old = format!("/{owner}/{name}");
650 
            let rest = shell.path.strip_prefix(&old).unwrap_or("");
651 
            return Err(Error::redirect(format!("/{}/{}{rest}", moved.owner, moved.name)));
652 
        }
653 
    };
19bb31ff Andy McCall ↶ 654 
    let role = auth::roles::role_for(&app.db, viewer.account(), &row).await.map_err(|e| Error::from_db(shell.clone(), e))?;
655 
    if !auth::roles::allows(role, access) {
656 
        return Err(Error::not_found(shell.clone()));
657 
    }
d0fbea2e Andy McCall ↶ 658 
    if row.archived && matches!(access, Access::Write | Access::Maintain) {
659 
        return Err(archived(shell));
660 
    }
19bb31ff Andy McCall ↶ 661 
    Ok((repo, row, role.unwrap_or(Role::Read)))
d0fbea2e Andy McCall ↶ 662 
}
663
664 
/// The error for a write to an archived repository (#108).
665 
pub fn archived(shell: &Shell) -> Error {
666 
    Error::bad(shell.clone(), "This repository is archived and read-only. Its admins can bring it back under Settings › Advanced.")
667 
}
668
669 
/// Refuse a change to an archived repository, for handlers that open it
670 
/// for reading and then write.
671 
pub fn writable(row: &db::repos::RepoRow, shell: &Shell) -> Result<(), Error> {
672 
    if row.archived {
673 
        Err(archived(shell))
674 
    } else {
675 
        Ok(())
676 
    }
19bb31ff Andy McCall ↶ 677 
}
678
679 
/// `lookup_role` for reading.
680 
pub async fn lookup(
681 
    app: &Shared,
682 
    shell: &Shell,
683 
    viewer: &Viewer,
684 
    owner: &str,
685 
    name: &str,
686 
) -> Result<(crate::repos::RepoName, db::repos::RepoRow, Role), Error> {
687 
    lookup_role(app, shell, viewer, owner, name, Access::Read).await
688 
}
689
690 
/// Fill `account` on change authors whose key is linked to an account.
691 
pub async fn attribute(app: &Shared, changes: &mut [&mut crate::repos::view::ChangeView]) {
692 
    if changes.is_empty() {
693 
        return;
694 
    }
695 
    let Ok(links) = db::accounts::identity_accounts(&app.db).await else { return };
696 
    let map: std::collections::HashMap<String, String> = links.into_iter().collect();
697 
    for c in changes.iter_mut() {
698 
        if let Some(u) = map.get(&c.author.key) {
699 
            c.author.account = Some(u.clone());
700 
        }
d23464c0 Andy McCall ↶ 701 
    }
702 
}