299 lines
11 KiB
OCaml
299 lines
11 KiB
OCaml
let src = Logs.Src.create "builder-web" ~doc:"Builder_web"
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module Log = (val Logs.src_log src : Logs.LOG)
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open Opium
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open Lwt.Syntax
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open Lwt_result.Infix
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type db_error = [ Caqti_error.connect | Model.error ]
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let pp_error ppf = function
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| #Caqti_error.connect as e -> Caqti_error.pp ppf e
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| #Model.error as e -> Model.pp_error ppf e
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| `Wrong_version (application_id, version) ->
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if application_id = Builder_db.application_id
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then Format.fprintf ppf "Wrong database version: %Ld" version
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else Format.fprintf ppf "Wrong database application id: %ld" application_id
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type 'a t = {
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pool : (Caqti_lwt.connection, [> db_error ] as 'a) Caqti_lwt.Pool.t;
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datadir : Fpath.t;
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}
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let realm = "builder-web"
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let init_datadir datadir =
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let open Rresult.R.Infix in
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Bos.OS.Dir.exists datadir >>= (fun exists ->
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if exists
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then Ok ()
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else Error (`Msg "Datadir does not exist")) >>= fun () ->
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Bos.OS.Dir.create ~path:false (Model.staging datadir) >>| fun _ -> ()
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let init ?(pool_size = 10) dbpath datadir =
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Rresult.R.bind
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(init_datadir datadir) @@
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fun () ->
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match Caqti_lwt.connect_pool
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~max_size:pool_size
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(Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
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with
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| Error e ->
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Error e
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| Ok pool ->
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Lwt_main.run (Caqti_lwt.Pool.use (fun (module Db : Caqti_lwt.CONNECTION) ->
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Db.find Builder_db.get_application_id () >>= fun application_id ->
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Db.find Builder_db.get_version () >>= (fun version ->
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if (application_id, version) = Builder_db.(application_id, current_version)
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then Lwt_result.return ()
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else Lwt_result.fail (`Wrong_version (application_id, version)))
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>>= fun () ->
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Model.cleanup_staging datadir (module Db))
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pool)
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|> (function
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| Error e -> Error (e :> [> db_error | `Wrong_version of int32 * int64 ])
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| Ok () ->
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Ok {
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pool = (pool :> (Caqti_lwt.connection, [> db_error ]) Caqti_lwt.Pool.t);
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datadir;
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})
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let pp_exec ppf (job, uuid, _, _, _, _, _) =
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Format.fprintf ppf "%s(%a)" job.Builder.name Uuidm.pp uuid
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let safe_seg path =
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if Fpath.is_seg path && not (Fpath.is_rel_seg path)
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then Ok (Fpath.v path)
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else Rresult.R.error_msgf "unsafe path %S" path
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(* mime lookup with orb knowledge *)
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let mime_lookup path =
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match Fpath.to_string path with
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| "build-environment" | "opam-switch" | "system-packages" ->
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"text/plain"
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| _ ->
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if Fpath.has_ext "build-hashes" path
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then "text/plain"
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else if Fpath.is_prefix Fpath.(v "bin/") path
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then "application/octet-stream"
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else Magic_mime.lookup (Fpath.to_string path)
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let authorized t handler = fun req ->
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let unauthorized =
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Response.of_plain_text "Forbidden!\n" ~status:`Unauthorized
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|> Response.add_header ("WWW-Authenticate", Auth.string_of_challenge (Basic realm))
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in
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match Request.authorization req with
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| None | Some (Other _) ->
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Lwt.return unauthorized
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| Some (Basic (username, password)) ->
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let* user_info = Caqti_lwt.Pool.use (Model.user username) t.pool in
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match user_info with
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| Ok (Some user_info) ->
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if Builder_web_auth.verify_password password user_info
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then handler req
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else Lwt.return unauthorized
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| Ok None ->
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let _ : _ Builder_web_auth.user_info =
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Builder_web_auth.hash ~username ~password () in
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Lwt.return unauthorized
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| Error e ->
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Log.warn (fun m -> m "Error getting user: %a" pp_error e);
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Response.of_plain_text "Internal server error\n" ~status:`Internal_server_error
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|> Lwt.return
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let routes t =
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let builder _req =
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let* jobs = Caqti_lwt.Pool.use Model.jobs t.pool in
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match jobs with
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| Error e ->
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Log.warn (fun m -> m "Error getting jobs: %a" pp_error e);
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Response.of_plain_text ~status:`Internal_server_error
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"Error getting jobs"
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|> Lwt.return
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| Ok jobs ->
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let+ jobs =
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List.fold_right
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(fun (job_id, job_name) r ->
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r >>= fun acc ->
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Caqti_lwt.Pool.use (Model.build_meta job_id) t.pool >>= function
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| Some (latest_build, latest_artifact) ->
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Lwt_result.return ((job_name, latest_build, latest_artifact) :: acc)
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| None ->
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Log.warn (fun m -> m "Job without builds: %s" job_name);
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Lwt_result.return acc)
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jobs
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(Lwt_result.return [])
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in
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match jobs with
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| Error e ->
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Log.warn (fun m -> m "Error getting jobs: %a" pp_error e);
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Response.of_plain_text ~status:`Internal_server_error
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"Error getting jobs"
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| Ok jobs ->
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Views.builder jobs |> Response.of_html
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in
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let job req =
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let job_name = Router.param req "job" in
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let+ job =
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Caqti_lwt.Pool.use (Model.job job_name) t.pool
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in
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match job with
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| Error e ->
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Log.warn (fun m -> m "Error getting job: %a" pp_error e);
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Response.of_plain_text ~status:`Internal_server_error
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"Error getting job"
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| Ok builds ->
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Views.job job_name builds |> Response.of_html
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in
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let job_build req =
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let job_name = Router.param req "job"
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and build = Router.param req "build" in
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match Uuidm.of_string build with
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| None ->
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Response.of_plain_text ~status:`Bad_request
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"Bad request.\n"
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|> Lwt.return
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| Some uuid ->
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let+ build_and_artifacts =
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Caqti_lwt.Pool.use (Model.build uuid) t.pool >>= fun (build_id, build) ->
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Caqti_lwt.Pool.use (Model.build_artifacts build_id) t.pool >|= fun artifacts ->
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(build, artifacts)
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in
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match build_and_artifacts with
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| Error e ->
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Log.warn (fun m -> m "Error getting job build: %a" pp_error e);
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Response.of_plain_text ~status:`Internal_server_error
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"Error getting job build"
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| Ok (build, artifacts) ->
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Views.job_build job_name build artifacts |> Response.of_html
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in
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let job_build_file req =
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let _job_name = Router.param req "job"
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and build = Router.param req "build"
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and filepath = Router.splat req |> String.concat "/" in
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(* XXX: We don't check safety of [file]. This should be fine however since
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* we don't use [file] for the filesystem but is instead used as a key for
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* lookup in the data table of the 'full' file. *)
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match Uuidm.of_string build, Fpath.of_string filepath with
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| None, _ ->
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Log.debug (fun m -> m "bad uuid: %s" build);
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Response.of_plain_text ~status:`Not_found "File not found"
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|> Lwt.return
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| _, Error (`Msg e) ->
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Log.debug (fun m -> m "bad path: %s" e);
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Response.of_plain_text ~status:`Not_found "File not found"
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|> Lwt.return
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| Some build, Ok filepath ->
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let+ artifact = Caqti_lwt.Pool.use (Model.build_artifact build filepath) t.pool in
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match artifact with
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| Error e ->
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Log.warn (fun m -> m "Error getting build artifact: %a" pp_error e);
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Response.of_plain_text ~status:`Internal_server_error
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"Error getting build artifact"
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| Ok (data, digest) ->
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let body = Body.of_string data in
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Response.make ~body ()
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|> Response.add_header ("Content-type", mime_lookup filepath)
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|> Response.set_etag (Base64.encode_string (Cstruct.to_string digest))
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in
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let upload req =
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let* body = Request.to_plain_text req in
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match Builder.Asn.exec_of_cs (Cstruct.of_string body) with
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| Error (`Msg e) ->
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Log.warn (fun m -> m "Received bad builder ASN.1");
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Log.debug (fun m -> m "Parse error: %s" e);
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Lwt.return (Response.of_plain_text "Bad request\n" ~status:`Bad_request)
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| Ok ((_, uuid, _, _, _, _, _) as exec) ->
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Log.info (fun m -> m "Received build %a" pp_exec exec);
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let* r = Caqti_lwt.Pool.use (Model.build_exists uuid) t.pool in
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match r with
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| Error e ->
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Log.warn (fun m -> m "Error saving build %a: %a" pp_exec exec pp_error e);
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Lwt.return (Response.of_plain_text "Internal server error\n" ~status:`Internal_server_error)
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| Ok true ->
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Log.warn (fun m -> m "Build with same uuid exists: %a" pp_exec exec);
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Lwt.return (Response.of_plain_text
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(Fmt.strf "Build with same uuid exists: %a\n" Uuidm.pp uuid)
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~status:`Conflict)
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| Ok false ->
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let* r = Caqti_lwt.Pool.use (Model.add_build t.datadir exec) t.pool in
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match r with
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| Ok () ->
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Lwt.return (Response.of_plain_text "Success!\n")
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| Error e ->
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Log.warn (fun m -> m "Error saving build %a: %a" pp_exec exec pp_error e);
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Lwt.return (Response.of_plain_text "Internal server error\n" ~status:`Internal_server_error)
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in
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let hash req =
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let hash_hex = Request.query "sha256" req in
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match Option.map (fun h -> Hex.to_cstruct (`Hex h)) hash_hex with
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| None ->
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Log.debug (fun m -> m "sha256 query parameter not provided");
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Response.of_plain_text "Bad request\n" ~status:`Bad_request
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|> Lwt.return
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| Some hash ->
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let+ build = Caqti_lwt.Pool.use (Model.build_hash hash) t.pool in
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(match build with
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| Error e ->
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Log.warn (fun m -> m "Database error: %a" pp_error e);
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Response.of_plain_text "Internal server error\n" ~status:`Internal_server_error
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| Ok None ->
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Log.debug (fun m -> m "Hash not found: %S" (Request.query_exn "sha256" req));
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Response.of_plain_text "Artifact not found\n" ~status:`Not_found
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| Ok (Some (job_name, build)) ->
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Response.redirect_to (Fmt.strf "/job/%s/build/%a/" job_name
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Uuidm.pp build.Builder_db.Build.uuid))
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| exception Invalid_argument _ ->
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Log.debug (fun m -> m "Invalid hash hex %S" (Request.query_exn "sha256" req));
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Response.of_plain_text "Bad request\n" ~status:`Bad_request
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|> Lwt.return
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in
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let compare_opam req =
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let build_left = Router.param req "build_left" in
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let build_right = Router.param req "build_right" in
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match Uuidm.of_string build_left, Uuidm.of_string build_right with
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| None, _ | _, None ->
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Response.of_plain_text "Bad request" ~status:`Bad_request
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|> Lwt.return
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| Some build_left, Some build_right ->
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let+ switch_left =
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Caqti_lwt.Pool.use (Model.build_artifact build_left (Fpath.v "opam-switch"))
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t.pool
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and+ switch_right =
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Caqti_lwt.Pool.use (Model.build_artifact build_right (Fpath.v "opam-switch"))
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t.pool
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in
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match switch_left, switch_right with
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| Error e, _ | _, Error e ->
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Log.warn (fun m -> m "Database error: %a" pp_error e);
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Response.of_plain_text "Internal server error\n" ~status:`Internal_server_error
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| Ok (switch_left, _sha256_left), Ok (switch_right, _sha256_right) ->
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let switch_left = OpamFile.SwitchExport.read_from_string switch_left
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and switch_right = OpamFile.SwitchExport.read_from_string switch_right in
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Opamdiff.compare switch_left switch_right
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|> Views.compare_opam build_left build_right
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|> Response.of_html
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in
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[
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App.get "/" builder;
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App.get "/job/:job/" job;
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App.get "/job/:job/build/:build/" job_build;
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App.get "/job/:job/build/:build/f/**" job_build_file;
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App.post "/upload" (authorized t upload);
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App.get "/hash" hash;
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App.get "/compare/:build_left/:build_right/opam-switch" compare_opam;
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]
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let add_routes t (app : App.t) =
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List.fold_right
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(fun route app -> route app)
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(routes t)
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app
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