OXYGENHUB
# df15b74774ca oxygenhub / crates / hub / src / web / mod.rs
25.7 KiB · Rust · last changed Versions on the hub: About page, /api/v1/version, footer, oh --version 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 avatar;
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pub mod chain;
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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 session;
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mod settings;
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mod statics;
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mod webhooks;
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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/{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("/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("/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/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/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}/remove", post(runners::remove))
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        .nest("/api/v1", crate::api::router())
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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("/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/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}/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}/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}/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/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/{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/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}/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,
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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
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}
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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
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}
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async fn git_receive_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-receive-pack".into())), m, q, h, b).await
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}
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/// Cross-site form posts are refused (hub spec §15.2): a browser that
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/// sends `Origin` or `Sec-Fetch-Site` must name this site. Protocol and
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/// API clients send neither.
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async fn same_origin(
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    axum::extract::State(app): axum::extract::State<Shared>,
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    req: axum::extract::Request,
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    next: axum::middleware::Next,
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) -> Response {
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    if req.method() != axum::http::Method::GET && req.method() != axum::http::Method::HEAD {
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        let headers = req.headers();
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        if headers.get("sec-fetch-site").and_then(|v| v.to_str().ok()) == Some("cross-site") {
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            return (StatusCode::FORBIDDEN, "cross-site request refused").into_response();
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        }
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        if let Some(origin) = headers.get(header::ORIGIN).and_then(|v| v.to_str().ok()) {
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            let host_of = |u: &str| u.split("://").nth(1).unwrap_or(u).split('/').next().unwrap_or("").to_ascii_lowercase();
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            let request_host = headers.get(header::HOST).and_then(|v| v.to_str().ok()).map(|h| h.to_ascii_lowercase());
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            let ok = host_of(origin) == host_of(app.config.base_url()) || request_host.as_deref() == Some(host_of(origin).as_str());
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            if !ok && origin != "null" {
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                return (StatusCode::FORBIDDEN, "cross-site request refused").into_response();
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            }
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        }
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    }
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    next.run(req).await
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}
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/// What every page's chrome needs.
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#[derive(Clone, Debug)]
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pub struct Shell {
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    pub site: String,
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    pub base_url: String,
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    pub path: String,
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    pub version: &'static str,
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    /// What was built: `oxy describe` at deploy, a Flow build's heads, or "local build".
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    pub build: &'static str,
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    /// The signed-in username, if any.
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    pub user: Option<String>,
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    pub is_admin: bool,
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    pub csrf: String,
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    pub unread: i64,
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}
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impl Shell {
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    pub fn new(app: &Shared, path: &str, viewer: &Viewer) -> Shell {
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        Shell {
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            site: app.config.site.name.clone(),
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            base_url: app.config.base_url().to_string(),
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            path: path.to_string(),
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            version: env!("CARGO_PKG_VERSION"),
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            build: env!("OXY_BUILD_ID"),
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            user: viewer.account().map(|a| a.username.clone()),
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            is_admin: viewer.is_admin(),
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            csrf: viewer.csrf().to_string(),
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            unread: viewer.0.as_ref().map(|v| v.unread).unwrap_or(0),
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        }
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    }
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    pub fn anonymous(app: &Shared, path: &str) -> Shell {
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        Shell::new(app, path, &Viewer(None))
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    }
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}
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/// The repository chrome: tabs and counts.
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#[derive(Clone, Debug)]
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pub struct RepoShell {
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    pub owner: String,
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    pub name: String,
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    pub url: String,
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    pub description: String,
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    pub default_bookmark: String,
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    pub visibility: String,
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    pub tab: &'static str,
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    pub clone_url: String,
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    /// The viewer's role, for showing settings and write actions.
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    pub role: Option<Role>,
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    /// Open issues and proposals, shown on their tabs.
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    pub open_issues: i64,
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    pub open_proposals: i64,
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}
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impl RepoShell {
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    pub fn new(app: &Shared, row: &db::repos::RepoRow, tab: &'static str) -> RepoShell {
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        RepoShell {
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            owner: row.owner.clone(),
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            name: row.name.clone(),
350 
            url: format!("/{}/{}", row.owner, row.name),
351 
            description: row.description.clone(),
352 
            default_bookmark: row.default_bookmark.clone(),
353 
            visibility: row.visibility.clone(),
354 
            tab,
355 
            clone_url: format!("{}/{}/{}", app.config.base_url(), row.owner, row.name),
19bb31ff Andy McCall ↶ 356 
            role: None,
1ac84c62 Andy McCall ↶ 357 
            open_issues: row.open_issues,
358 
            open_proposals: row.open_proposals,
d23464c0 Andy McCall ↶ 359 
        }
360 
    }
19bb31ff Andy McCall ↶ 361
362 
    pub fn with_role(mut self, role: Role) -> RepoShell {
363 
        self.role = Some(role);
364 
        self
365 
    }
366
367 
    pub fn can(&self, access: Access) -> bool {
368 
        auth::roles::allows(self.role, access)
369 
    }
370
371 
    pub fn can_maintain(&self) -> bool {
372 
        self.can(Access::Maintain)
373 
    }
d23464c0 Andy McCall ↶ 374 
}
375
376 
/// Render a template as an HTML response.
1ac84c62 Andy McCall ↶ 377 
/// One page of a long list: which page, how many, and links that keep
378 
/// the rest of the query.
379 
#[derive(Clone, Debug)]
380 
pub struct Pager {
381 
    pub page: usize,
382 
    pub pages: usize,
383 
    pub total: usize,
384 
    /// The query without `page`, each pair encoded, joined with `&`.
385 
    query: String,
386 
}
387
388 
impl Pager {
389 
    pub const PER_PAGE: usize = 25;
390
391 
    /// `page` counts from 1; out-of-range pages clamp to the last.
392 
    pub fn new(total: usize, page: Option<usize>, query: &[(&str, &str)]) -> Pager {
393 
        let pages = total.div_ceil(Self::PER_PAGE).max(1);
394 
        let page = page.unwrap_or(1).clamp(1, pages);
395 
        let query = query
396 
            .iter()
397 
            .filter(|(_, v)| !v.is_empty())
398 
            .map(|(k, v)| format!("{k}={}", settings::urlencode(v).replace('/', "%2F")))
399 
            .collect::<Vec<_>>()
400 
            .join("&");
401 
        Pager { page, pages, total, query }
402 
    }
403
404 
    /// This page's items.
405 
    pub fn slice<T>(&self, all: Vec<T>) -> Vec<T> {
406 
        all.into_iter().skip((self.page - 1) * Self::PER_PAGE).take(Self::PER_PAGE).collect()
407 
    }
408
409 
    pub fn url(&self, page: usize) -> String {
410 
        if self.query.is_empty() {
411 
            format!("?page={page}")
412 
        } else {
413 
            format!("?{}&page={page}", self.query)
414 
        }
415 
    }
416
417 
    /// The same query with another sort, back on page one.
418 
    pub fn sorted(&self, sort: &str) -> String {
419 
        let rest: Vec<&str> = self.query.split('&').filter(|p| !p.is_empty() && !p.starts_with("sort=")).collect();
420 
        let mut q = rest.join("&");
421 
        if !q.is_empty() {
422 
            q.push('&');
423 
        }
424 
        format!("?{q}sort={sort}")
425 
    }
426 
}
427
d23464c0 Andy McCall ↶ 428 
pub struct Page<T: Template>(pub T);
429
430 
impl<T: Template> IntoResponse for Page<T> {
431 
    fn into_response(self) -> Response {
432 
        match self.0.render() {
433 
            Ok(s) => Html(s).into_response(),
434 
            Err(e) => {
435 
                tracing::error!("template: {e}");
436 
                (StatusCode::INTERNAL_SERVER_ERROR, "template error").into_response()
437 
            }
438 
        }
439 
    }
440 
}
441
442 
#[derive(Template)]
443 
#[template(path = "error.html")]
444 
struct ErrorPage {
445 
    shell: Shell,
446 
    status: u16,
447 
    title: String,
448 
    detail: String,
449 
}
450
19bb31ff Andy McCall ↶ 451 
/// A page-level failure, rendered inside the shell, or a redirect.
d23464c0 Andy McCall ↶ 452 
#[derive(Debug)]
453 
pub struct Error {
454 
    pub status: StatusCode,
455 
    pub detail: String,
19bb31ff Andy McCall ↶ 456 
    shell: Option<Box<Shell>>,
457 
    redirect: Option<String>,
d23464c0 Andy McCall ↶ 458 
}
459
460 
impl Error {
19bb31ff Andy McCall ↶ 461 
    pub fn redirect(to: String) -> Error {
462 
        Error { status: StatusCode::SEE_OTHER, detail: String::new(), shell: None, redirect: Some(to) }
463 
    }
464
d23464c0 Andy McCall ↶ 465 
    pub fn not_found(shell: Shell) -> Error {
19bb31ff Andy McCall ↶ 466 
        Error {
467 
            status: StatusCode::NOT_FOUND,
468 
            detail: "There is nothing at this address.".into(),
469 
            shell: Some(Box::new(shell)),
470 
            redirect: None,
471 
        }
d23464c0 Andy McCall ↶ 472 
    }
473
474 
    pub fn bad(shell: Shell, detail: impl Into<String>) -> Error {
19bb31ff Andy McCall ↶ 475 
        Error { status: StatusCode::BAD_REQUEST, detail: detail.into(), shell: Some(Box::new(shell)), redirect: None }
d23464c0 Andy McCall ↶ 476 
    }
477
478 
    pub fn from_repo(shell: Shell, e: RepoError) -> Error {
479 
        match e {
480 
            RepoError::NotFound => Error::not_found(shell),
19bb31ff Andy McCall ↶ 481 
            RepoError::Oxy(oxy_core::repo::RepoError::Msg(m)) => {
482 
                Error { status: StatusCode::NOT_FOUND, detail: m, shell: Some(Box::new(shell)), redirect: None }
483 
            }
484 
            other => {
485 
                Error { status: StatusCode::INTERNAL_SERVER_ERROR, detail: other.to_string(), shell: Some(Box::new(shell)), redirect: None }
486 
            }
d23464c0 Andy McCall ↶ 487 
        }
488 
    }
489
490 
    pub fn from_db(shell: Shell, e: sqlx::Error) -> Error {
19bb31ff Andy McCall ↶ 491 
        Error { status: StatusCode::INTERNAL_SERVER_ERROR, detail: e.to_string(), shell: Some(Box::new(shell)), redirect: None }
d23464c0 Andy McCall ↶ 492 
    }
493 
}
494
495 
impl IntoResponse for Error {
496 
    fn into_response(self) -> Response {
19bb31ff Andy McCall ↶ 497 
        if let Some(to) = self.redirect {
498 
            return Redirect::to(&to).into_response();
499 
        }
d23464c0 Andy McCall ↶ 500 
        let title = match self.status {
501 
            StatusCode::NOT_FOUND => "Not found",
502 
            StatusCode::BAD_REQUEST => "Bad request",
503 
            _ => "Something went wrong",
504 
        };
505 
        if self.status.is_server_error() {
506 
            tracing::error!("{}", self.detail);
507 
        }
19bb31ff Andy McCall ↶ 508 
        let shell = self.shell.map(|b| *b).unwrap_or(Shell {
8d2caf12 Andy McCall ↶ 509 
            site: "OxygenHub".into(),
19bb31ff Andy McCall ↶ 510 
            base_url: String::new(),
511 
            path: String::new(),
512 
            version: "",
e9bfea8e Andy McCall ↶ 513 
            build: "",
19bb31ff Andy McCall ↶ 514 
            user: None,
515 
            is_admin: false,
516 
            csrf: String::new(),
18e381ea Andy McCall ↶ 517 
            unread: 0,
19bb31ff Andy McCall ↶ 518 
        });
d23464c0 Andy McCall ↶ 519 
        let page = ErrorPage { shell, status: self.status.as_u16(), title: title.into(), detail: self.detail };
520 
        match page.render() {
521 
            Ok(s) => (self.status, Html(s)).into_response(),
522 
            Err(_) => (self.status, title).into_response(),
523 
        }
524 
    }
525 
}
526
19bb31ff Andy McCall ↶ 527 
async fn not_found(axum::extract::State(app): axum::extract::State<Shared>, viewer: Viewer, uri: axum::http::Uri) -> Response {
528 
    Error::not_found(Shell::new(&app, uri.path(), &viewer)).into_response()
d23464c0 Andy McCall ↶ 529 
}
530
531 
/// A raw file response with a safe content type (hub spec §15.2).
532 
pub fn raw(bytes: Vec<u8>, name: &str, inline_image: bool) -> Response {
533 
    let mime = mime_of(name);
534 
    let disposition = if inline_image && mime.starts_with("image/") { "inline" } else { "attachment" };
535 
    (
536 
        [
537 
            (header::CONTENT_TYPE, mime.to_string()),
538 
            (header::CONTENT_DISPOSITION, format!("{disposition}; filename=\"{}\"", name.replace('"', ""))),
539 
            (header::X_CONTENT_TYPE_OPTIONS, "nosniff".to_string()),
540 
        ],
541 
        bytes,
542 
    )
543 
        .into_response()
544 
}
545
546 
pub fn mime_of(name: &str) -> &'static str {
547 
    match name.rsplit('.').next().map(|e| e.to_ascii_lowercase()).as_deref() {
548 
        Some("png") => "image/png",
549 
        Some("jpg" | "jpeg") => "image/jpeg",
550 
        Some("gif") => "image/gif",
551 
        Some("webp") => "image/webp",
552 
        Some("svg") => "image/svg+xml",
553 
        Some("pdf") => "application/pdf",
554 
        Some(
555 
            "txt" | "md" | "rs" | "toml" | "json" | "yml" | "yaml" | "c" | "h" | "cpp" | "hpp" | "py" | "js" | "ts" | "html" | "css" | "sh",
556 
        ) => "text/plain; charset=utf-8",
557 
        _ => "application/octet-stream",
558 
    }
559 
}
560
19bb31ff Andy McCall ↶ 561 
/// Resolve `{owner}/{name}` for the viewer with at least `access`, or 404:
562 
/// a repository the viewer may not see does not exist for them (hub spec
563 
/// §4.4). Returns the viewer's role too.
564 
pub async fn lookup_role(
565 
    app: &Shared,
566 
    shell: &Shell,
567 
    viewer: &Viewer,
568 
    owner: &str,
569 
    name: &str,
570 
    access: Access,
571 
) -> Result<(crate::repos::RepoName, db::repos::RepoRow, Role), Error> {
d23464c0 Andy McCall ↶ 572 
    let repo = crate::repos::RepoName::new(owner, name).ok_or_else(|| Error::not_found(shell.clone()))?;
19bb31ff Andy McCall ↶ 573 
    let row = db::repos::get(&app.db, owner, name)
574 
        .await
575 
        .map_err(|e| Error::from_db(shell.clone(), e))?
576 
        .ok_or_else(|| Error::not_found(shell.clone()))?;
577 
    let role = auth::roles::role_for(&app.db, viewer.account(), &row).await.map_err(|e| Error::from_db(shell.clone(), e))?;
578 
    if !auth::roles::allows(role, access) {
579 
        return Err(Error::not_found(shell.clone()));
580 
    }
581 
    Ok((repo, row, role.unwrap_or(Role::Read)))
582 
}
583
584 
/// `lookup_role` for reading.
585 
pub async fn lookup(
586 
    app: &Shared,
587 
    shell: &Shell,
588 
    viewer: &Viewer,
589 
    owner: &str,
590 
    name: &str,
591 
) -> Result<(crate::repos::RepoName, db::repos::RepoRow, Role), Error> {
592 
    lookup_role(app, shell, viewer, owner, name, Access::Read).await
593 
}
594
595 
/// Fill `account` on change authors whose key is linked to an account.
596 
pub async fn attribute(app: &Shared, changes: &mut [&mut crate::repos::view::ChangeView]) {
597 
    if changes.is_empty() {
598 
        return;
599 
    }
600 
    let Ok(links) = db::accounts::identity_accounts(&app.db).await else { return };
601 
    let map: std::collections::HashMap<String, String> = links.into_iter().collect();
602 
    for c in changes.iter_mut() {
603 
        if let Some(u) = map.get(&c.author.key) {
604 
            c.author.account = Some(u.clone());
605 
        }
d23464c0 Andy McCall ↶ 606 
    }
607 
}