OXYGENHUB
# d74ce22fa80e oxygenhub / crates / hub / src / web / mod.rs
35.6 KiB · Rust · last changed Security headers on every response; CSP report-only with a report endpoint 21 days 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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pub(crate) mod assistants;
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mod avatar;
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pub(crate) mod backups;
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pub mod chain;
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pub mod coverage;
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mod device;
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mod diffusion;
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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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pub mod icons;
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/// A state as people read it (oxygenhub#170): `02a6c9d4746a+… (14 heads)`
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/// for heads joined by `+`, which can run to hundreds of characters; a
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/// single head, or text that is not heads, unchanged.
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pub fn state_label(text: &str) -> String {
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    let parts: Vec<&str> = text.split('+').collect();
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    let heads = parts.len() > 1 && parts.iter().all(|p| p.len() >= 7 && p.chars().all(|c| c.is_ascii_hexdigit()));
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    if !heads {
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        return text.to_string();
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    }
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    format!("{}+… ({} heads)", &parts[0][..12.min(parts[0].len())], parts.len())
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}
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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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pub mod reports;
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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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pub mod test_reports;
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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(crate::headers::REPORT_PATH, post(crate::headers::csp_report).layer(DefaultBodyLimit::max(16 * 1024)))
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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("/sky/arrivals", get(home::arrivals))
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        .route("/settings/backups", get(backups::user).post(backups::user_save))
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        .route("/settings/backups/run", post(backups::user_run))
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        .route("/settings/backups/test", post(backups::user_test))
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        .route("/orgs/{name}/settings/backups", get(backups::org).post(backups::org_save))
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        .route("/orgs/{name}/settings/backups/run", post(backups::org_run))
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        .route("/orgs/{name}/settings/backups/test", post(backups::org_test))
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        .route("/settings/tokens/{id}/delete", post(settings::tokens_delete))
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        .route("/settings/tokens/{id}/agent", post(settings::tokens_agent))
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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/storage", post(orgs::storage))
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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/images", get(runners::images))
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        .route("/admin/diffusion", get(diffusion::admin))
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        .route("/admin/backups", get(backups::admin))
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        .route("/{owner}/{name}/diffusion", get(diffusion::page))
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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}/tests", get(test_reports::overview))
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        .route("/{owner}/{name}/tests/case", get(test_reports::case))
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        .route("/{owner}/{name}/reports", get(reports::overview))
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        .route("/{owner}/{name}/reports/files/{id}/{mac}/{*path}", get(reports::file))
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        .route("/{owner}/{name}/reports/{report}", get(reports::show))
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        .route("/{owner}/{name}/coverage", get(coverage::overview))
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        .route("/{owner}/{name}/coverage/badge.svg", get(coverage::badge))
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        .route("/{owner}/{name}/coverage/{id}/file/{*path}", get(coverage::file))
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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}/jobs/{job}/rerun", post(flow::rerun_job))
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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/diffusion", post(repo_settings::diffusion))
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        .route("/{owner}/{name}/settings/backup", post(repo_settings::backup))
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        .route("/{owner}/{name}/settings/storage", post(repo_settings::storage))
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        .route("/{owner}/{name}/settings/coverage", post(repo_settings::coverage))
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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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}
325
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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
335 
}
336
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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,
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) -> Response {
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    crate::mirror::serve(st, axum::extract::Path((o, n, format!("objects/{rest}"))), m, q, h, b).await
346 
}
347
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async fn git_upload_pack(
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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, "git-upload-pack".into())), m, q, h, b).await
357 
}
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async fn git_receive_pack(
360 
    st: axum::extract::State<Shared>,
361 
    axum::extract::Path((o, n)): axum::extract::Path<(String, String)>,
362 
    m: axum::http::Method,
363 
    q: axum::extract::RawQuery,
364 
    h: axum::http::HeaderMap,
365 
    b: axum::body::Bytes,
366 
) -> Response {
367 
    crate::mirror::serve(st, axum::extract::Path((o, n, "git-receive-pack".into())), m, q, h, b).await
368 
}
369
370 
/// Cross-site form posts are refused (hub spec §15.2): a browser that
371 
/// sends `Origin` or `Sec-Fetch-Site` must name this site. Protocol and
372 
/// API clients send neither.
373 
async fn same_origin(
374 
    axum::extract::State(app): axum::extract::State<Shared>,
375 
    req: axum::extract::Request,
376 
    next: axum::middleware::Next,
377 
) -> Response {
378 
    if req.method() != axum::http::Method::GET && req.method() != axum::http::Method::HEAD {
379 
        let headers = req.headers();
380 
        if headers.get("sec-fetch-site").and_then(|v| v.to_str().ok()) == Some("cross-site") {
381 
            return (StatusCode::FORBIDDEN, "cross-site request refused").into_response();
382 
        }
383 
        if let Some(origin) = headers.get(header::ORIGIN).and_then(|v| v.to_str().ok()) {
384 
            let host_of = |u: &str| u.split("://").nth(1).unwrap_or(u).split('/').next().unwrap_or("").to_ascii_lowercase();
385 
            let request_host = headers.get(header::HOST).and_then(|v| v.to_str().ok()).map(|h| h.to_ascii_lowercase());
386 
            let ok = host_of(origin) == host_of(app.config.base_url()) || request_host.as_deref() == Some(host_of(origin).as_str());
387 
            if !ok && origin != "null" {
388 
                return (StatusCode::FORBIDDEN, "cross-site request refused").into_response();
389 
            }
390 
        }
391 
    }
392 
    next.run(req).await
393 
}
394
395 
/// What every page's chrome needs.
396 
#[derive(Clone, Debug)]
397 
pub struct Shell {
398 
    pub site: String,
399 
    pub base_url: String,
400 
    pub path: String,
401 
    pub version: &'static str,
402 
    /// What was built: `oxy describe` at deploy, a Flow build's heads, or "local build".
403 
    pub build: &'static str,
404 
    /// The signed-in username, if any.
405 
    pub user: Option<String>,
406 
    pub is_admin: bool,
407 
    pub csrf: String,
408 
    pub unread: i64,
409 
}
410
411 
impl Shell {
412 
    /// The version in the stylesheet and script URLs (`statics::assets_version`).
413 
    pub fn assets(&self) -> &'static str {
414 
        statics::assets_version()
415 
    }
416
417 
    pub fn new(app: &Shared, path: &str, viewer: &Viewer) -> Shell {
418 
        Shell {
419 
            site: app.config.site.name.clone(),
420 
            base_url: app.config.base_url().to_string(),
421 
            path: path.to_string(),
422 
            version: env!("CARGO_PKG_VERSION"),
423 
            build: env!("OXY_BUILD_ID"),
424 
            user: viewer.account().map(|a| a.username.clone()),
425 
            is_admin: viewer.is_admin(),
426 
            csrf: viewer.csrf().to_string(),
427 
            unread: viewer.0.as_ref().map(|v| v.unread).unwrap_or(0),
428 
        }
429 
    }
430
431 
    pub fn anonymous(app: &Shared, path: &str) -> Shell {
432 
        Shell::new(app, path, &Viewer(None))
433 
    }
434 
}
435
436 
/// The repository chrome: tabs and counts.
437 
#[derive(Clone, Debug)]
438 
pub struct RepoShell {
439 
    pub owner: String,
440 
    pub name: String,
441 
    pub url: String,
442 
    pub description: String,
443 
    pub default_bookmark: String,
444 
    pub visibility: String,
445 
    pub tab: &'static str,
446 
    pub clone_url: String,
447 
    /// The viewer's role, for showing settings and write actions.
448 
    pub role: Option<Role>,
449 
    /// Open issues and proposals, shown on their tabs.
450 
    pub open_issues: i64,
451 
    pub open_proposals: i64,
452 
    /// Read-only (#108).
453 
    pub archived: bool,
454 
    /// Whether the repository has a wiki (§6.11).
455 
    pub wiki: bool,
456 
    /// The bucket its data lives in, when not this hub's disk (#96), as
457 
    /// the header's provider icon shows it (#123).
458 
    pub stored_in: Option<crate::storage::StoreBadge>,
459 
    /// Whether it has coverage reports, for the Coverage tab (#113).
460 
    pub coverage: bool,
461 
    /// Whether it has test reports, for the Tests tab (#114).
462 
    pub tests: bool,
463 
    /// Whether it has reports of its own (#127); with coverage or tests,
464 
    /// the Reports tab.
465 
    pub reports: bool,
466 
    /// Whether it pins, or is pinned by, another repository here: the
467 
    /// Diffusion tab (#150).
468 
    pub diffusion: bool,
469 
    /// The backdrop's data, a sky of this repository alone; empty for none
470 
    /// (docs/backgrounds.md, oxygenhub#196).
471 
    pub backdrop: String,
472 
}
473
474 
impl RepoShell {
475 
    pub fn new(app: &Shared, row: &db::repos::RepoRow, tab: &'static str) -> RepoShell {
476 
        RepoShell {
477 
            owner: row.owner.clone(),
478 
            name: row.name.clone(),
479 
            url: format!("/{}/{}", row.owner, row.name),
480 
            description: row.description.clone(),
481 
            default_bookmark: row.default_bookmark.clone(),
482 
            visibility: row.visibility.clone(),
483 
            tab,
484 
            clone_url: format!("{}/{}/{}", app.config.base_url(), row.owner, row.name),
485 
            role: None,
486 
            open_issues: row.open_issues,
487 
            open_proposals: row.open_proposals,
488 
            archived: row.archived,
489 
            wiki: crate::repos::RepoName::new(&row.owner, &row.name).is_some_and(|n| app.wikis.exists(&n)),
490 
            stored_in: crate::storage::location(app, &row.owner, &row.name).and_then(|u| crate::storage::StoreBadge::of(&u)),
491 
            coverage: crate::coverage::has_reports(app, row.id),
492 
            tests: crate::junit::has_reports(app, row.id),
493 
            reports: crate::reports::has_reports(app, row.id),
494 
            diffusion: crate::diffusion::involved(app, row.id),
495 
            backdrop: String::new(),
496 
        }
497 
    }
498
499 
    /// Give the page a backdrop: this repository's sky, its activity of the
500 
    /// last 30 days from the database (#196).
501 
    pub async fn with_sky(mut self, app: &Shared, row: &db::repos::RepoRow) -> RepoShell {
502 
        self.backdrop = home::repo_sky(app, row).await;
503 
        self
504 
    }
505
506 
    pub fn with_role(mut self, role: Role) -> RepoShell {
507 
        self.role = Some(role);
508 
        self
509 
    }
510
511 
    pub fn can(&self, access: Access) -> bool {
512 
        auth::roles::allows(self.role, access)
513 
    }
514
515 
    pub fn can_maintain(&self) -> bool {
516 
        self.can(Access::Maintain)
517 
    }
518 
}
519
520 
/// Render a template as an HTML response.
521 
/// One page of a long list: which page, how many, and links that keep
522 
/// the rest of the query.
523 
#[derive(Clone, Debug)]
524 
pub struct Pager {
525 
    pub page: usize,
526 
    pub pages: usize,
527 
    pub total: usize,
528 
    /// The query without `page`, each pair encoded, joined with `&`.
529 
    query: String,
530 
}
531
532 
impl Pager {
533 
    pub const PER_PAGE: usize = 25;
534
535 
    /// `page` counts from 1; out-of-range pages clamp to the last.
536 
    pub fn new(total: usize, page: Option<usize>, query: &[(&str, &str)]) -> Pager {
537 
        let pages = total.div_ceil(Self::PER_PAGE).max(1);
538 
        let page = page.unwrap_or(1).clamp(1, pages);
539 
        let query = query
540 
            .iter()
541 
            .filter(|(_, v)| !v.is_empty())
542 
            .map(|(k, v)| format!("{k}={}", settings::urlencode(v).replace('/', "%2F")))
543 
            .collect::<Vec<_>>()
544 
            .join("&");
545 
        Pager { page, pages, total, query }
546 
    }
547
548 
    /// This page's items.
549 
    pub fn slice<T>(&self, all: Vec<T>) -> Vec<T> {
550 
        all.into_iter().skip((self.page - 1) * Self::PER_PAGE).take(Self::PER_PAGE).collect()
551 
    }
552
553 
    pub fn url(&self, page: usize) -> String {
554 
        if self.query.is_empty() {
555 
            format!("?page={page}")
556 
        } else {
557 
            format!("?{}&page={page}", self.query)
558 
        }
559 
    }
560
561 
    /// The same query with another sort, back on page one.
562 
    pub fn sorted(&self, sort: &str) -> String {
563 
        let rest: Vec<&str> = self.query.split('&').filter(|p| !p.is_empty() && !p.starts_with("sort=")).collect();
564 
        let mut q = rest.join("&");
565 
        if !q.is_empty() {
566 
            q.push('&');
567 
        }
568 
        format!("?{q}sort={sort}")
569 
    }
570 
}
571
572 
pub struct Page<T: Template>(pub T);
573
574 
impl<T: Template> IntoResponse for Page<T> {
575 
    fn into_response(self) -> Response {
576 
        match self.0.render() {
577 
            Ok(s) => Html(s).into_response(),
578 
            Err(e) => {
579 
                tracing::error!("template: {e}");
580 
                (StatusCode::INTERNAL_SERVER_ERROR, "template error").into_response()
581 
            }
582 
        }
583 
    }
584 
}
585
586 
#[derive(Template)]
587 
#[template(path = "error.html")]
588 
struct ErrorPage {
589 
    shell: Shell,
590 
    status: u16,
591 
    title: String,
592 
    detail: String,
593 
}
594
595 
/// A page-level failure, rendered inside the shell, or a redirect.
596 
#[derive(Debug)]
597 
pub struct Error {
598 
    pub status: StatusCode,
599 
    pub detail: String,
600 
    shell: Option<Box<Shell>>,
601 
    redirect: Option<String>,
602 
}
603
604 
impl Error {
605 
    pub fn redirect(to: String) -> Error {
606 
        Error { status: StatusCode::SEE_OTHER, detail: String::new(), shell: None, redirect: Some(to) }
607 
    }
608
609 
    pub fn not_found(shell: Shell) -> Error {
610 
        Error {
611 
            status: StatusCode::NOT_FOUND,
612 
            detail: "There is nothing at this address.".into(),
613 
            shell: Some(Box::new(shell)),
614 
            redirect: None,
615 
        }
616 
    }
617
618 
    pub fn bad(shell: Shell, detail: impl Into<String>) -> Error {
619 
        Error { status: StatusCode::BAD_REQUEST, detail: detail.into(), shell: Some(Box::new(shell)), redirect: None }
620 
    }
621
622 
    pub fn from_repo(shell: Shell, e: RepoError) -> Error {
623 
        match e {
624 
            RepoError::NotFound => Error::not_found(shell),
625 
            RepoError::Oxy(oxy_core::repo::RepoError::Msg(m)) => {
626 
                Error { status: StatusCode::NOT_FOUND, detail: m, shell: Some(Box::new(shell)), redirect: None }
627 
            }
628 
            other => {
629 
                Error { status: StatusCode::INTERNAL_SERVER_ERROR, detail: other.to_string(), shell: Some(Box::new(shell)), redirect: None }
630 
            }
631 
        }
632 
    }
633
634 
    pub fn from_db(shell: Shell, e: sqlx::Error) -> Error {
635 
        Error { status: StatusCode::INTERNAL_SERVER_ERROR, detail: e.to_string(), shell: Some(Box::new(shell)), redirect: None }
636 
    }
637 
}
638
639 
impl IntoResponse for Error {
640 
    fn into_response(self) -> Response {
641 
        if let Some(to) = self.redirect {
642 
            return Redirect::to(&to).into_response();
643 
        }
644 
        let title = match self.status {
645 
            StatusCode::NOT_FOUND => "Not found",
646 
            StatusCode::BAD_REQUEST => "Bad request",
647 
            _ => "Something went wrong",
648 
        };
649 
        if self.status.is_server_error() {
650 
            tracing::error!("{}", self.detail);
651 
        }
652 
        let shell = self.shell.map(|b| *b).unwrap_or(Shell {
653 
            site: "OxygenHub".into(),
654 
            base_url: String::new(),
655 
            path: String::new(),
656 
            version: "",
657 
            build: "",
658 
            user: None,
659 
            is_admin: false,
660 
            csrf: String::new(),
661 
            unread: 0,
662 
        });
663 
        let page = ErrorPage { shell, status: self.status.as_u16(), title: title.into(), detail: self.detail };
664 
        match page.render() {
665 
            Ok(s) => (self.status, Html(s)).into_response(),
666 
            Err(_) => (self.status, title).into_response(),
667 
        }
668 
    }
669 
}
670
671 
async fn not_found(axum::extract::State(app): axum::extract::State<Shared>, viewer: Viewer, uri: axum::http::Uri) -> Response {
672 
    Error::not_found(Shell::new(&app, uri.path(), &viewer)).into_response()
673 
}
674
675 
/// A raw file response with a safe content type (hub spec §15.2).
676 
pub fn raw(bytes: Vec<u8>, name: &str, inline_image: bool) -> Response {
677 
    let mime = mime_of(name);
678 
    let disposition = if inline_image && mime.starts_with("image/") { "inline" } else { "attachment" };
679 
    (
680 
        [
681 
            (header::CONTENT_TYPE, mime.to_string()),
682 
            (header::CONTENT_DISPOSITION, format!("{disposition}; filename=\"{}\"", name.replace('"', ""))),
683 
            (header::X_CONTENT_TYPE_OPTIONS, "nosniff".to_string()),
684 
        ],
685 
        bytes,
686 
    )
687 
        .into_response()
688 
}
689
690 
pub fn mime_of(name: &str) -> &'static str {
691 
    match name.rsplit('.').next().map(|e| e.to_ascii_lowercase()).as_deref() {
692 
        Some("png") => "image/png",
693 
        Some("jpg" | "jpeg") => "image/jpeg",
694 
        Some("gif") => "image/gif",
695 
        Some("webp") => "image/webp",
696 
        Some("svg") => "image/svg+xml",
697 
        Some("pdf") => "application/pdf",
698 
        Some(
699 
            "txt" | "md" | "rs" | "toml" | "json" | "yml" | "yaml" | "c" | "h" | "cpp" | "hpp" | "py" | "js" | "ts" | "html" | "css" | "sh",
700 
        ) => "text/plain; charset=utf-8",
701 
        _ => "application/octet-stream",
702 
    }
703 
}
704
705 
/// Resolve `{owner}/{name}` for the viewer with at least `access`, or 404:
706 
/// a repository the viewer may not see does not exist for them (hub spec
707 
/// §4.4). Returns the viewer's role too.
708 
pub async fn lookup_role(
709 
    app: &Shared,
710 
    shell: &Shell,
711 
    viewer: &Viewer,
712 
    owner: &str,
713 
    name: &str,
714 
    access: Access,
715 
) -> Result<(crate::repos::RepoName, db::repos::RepoRow, Role), Error> {
716 
    let repo = crate::repos::RepoName::new(owner, name).ok_or_else(|| Error::not_found(shell.clone()))?;
717 
    let row = match db::repos::get(&app.db, owner, name).await.map_err(|e| Error::from_db(shell.clone(), e))? {
718 
        Some(row) => row,
719 
        None => {
720 
            // A transferred repository: the old URL goes to the new one (#108),
721 
            // the rest of the path kept, when the viewer may see it.
722 
            let moved = db::repos::moved_to(&app.db, owner, name).await.map_err(|e| Error::from_db(shell.clone(), e))?;
723 
            let Some(moved) = moved else { return Err(Error::not_found(shell.clone())) };
724 
            let role = auth::roles::role_for(&app.db, viewer.account(), &moved).await.map_err(|e| Error::from_db(shell.clone(), e))?;
725 
            if !auth::roles::allows(role, Access::Read) {
726 
                return Err(Error::not_found(shell.clone()));
727 
            }
728 
            let old = format!("/{owner}/{name}");
729 
            let rest = shell.path.strip_prefix(&old).unwrap_or("");
730 
            return Err(Error::redirect(format!("/{}/{}{rest}", moved.owner, moved.name)));
731 
        }
732 
    };
733 
    let role = auth::roles::role_for(&app.db, viewer.account(), &row).await.map_err(|e| Error::from_db(shell.clone(), e))?;
734 
    if !auth::roles::allows(role, access) {
735 
        return Err(Error::not_found(shell.clone()));
736 
    }
737 
    if row.archived && matches!(access, Access::Write | Access::Maintain) {
738 
        return Err(archived(shell));
739 
    }
740 
    Ok((repo, row, role.unwrap_or(Role::Read)))
741 
}
742
743 
/// The error for a write to an archived repository (#108).
744 
pub fn archived(shell: &Shell) -> Error {
745 
    Error::bad(shell.clone(), "This repository is archived and read-only. Its admins can bring it back under Settings › Advanced.")
746 
}
747
748 
/// Refuse a change to an archived repository, for handlers that open it
749 
/// for reading and then write.
750 
pub fn writable(row: &db::repos::RepoRow, shell: &Shell) -> Result<(), Error> {
751 
    if row.archived {
752 
        Err(archived(shell))
753 
    } else {
754 
        Ok(())
755 
    }
756 
}
757
758 
/// `lookup_role` for reading.
759 
pub async fn lookup(
760 
    app: &Shared,
761 
    shell: &Shell,
762 
    viewer: &Viewer,
763 
    owner: &str,
764 
    name: &str,
765 
) -> Result<(crate::repos::RepoName, db::repos::RepoRow, Role), Error> {
766 
    lookup_role(app, shell, viewer, owner, name, Access::Read).await
767 
}
768
769 
/// Fill `account` on change authors whose key is linked to an account.
770 
pub async fn attribute(app: &Shared, changes: &mut [&mut crate::repos::view::ChangeView]) {
771 
    if changes.is_empty() {
772 
        return;
773 
    }
774 
    let Ok(links) = db::accounts::identity_accounts(&app.db).await else { return };
775 
    let map: std::collections::HashMap<String, String> = links.into_iter().collect();
776 
    for c in changes.iter_mut() {
777 
        if let Some(u) = map.get(&c.author.key) {
778 
            c.author.account = Some(u.clone());
779 
        }
780 
    }
781 
}