builder-web/lib/builder_web.ml

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let src = Logs.Src.create "builder-web" ~doc:"Builder_web"
module Log = (val Logs.src_log src : Logs.LOG)
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open Lwt.Syntax
open Lwt_result.Infix
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let pp_error ppf = function
| #Caqti_error.connect as e -> Caqti_error.pp ppf e
| #Model.error as e -> Model.pp_error ppf e
| `Wrong_version (application_id, version) ->
if application_id = Builder_db.application_id
then Format.fprintf ppf "Wrong database version: %Ld" version
else Format.fprintf ppf "Wrong database application id: %ld" application_id
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let init_datadir datadir =
let open Rresult.R.Infix in
Bos.OS.Dir.exists datadir >>= (fun exists ->
if exists
then Ok ()
else Error (`Msg "Datadir does not exist")) >>= fun () ->
Bos.OS.Dir.create ~path:false (Model.staging datadir) >>| fun _ -> ()
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let init dbpath datadir =
Rresult.R.bind (init_datadir datadir) @@ fun () ->
Lwt_main.run (
Caqti_lwt.connect
(Uri.make ~scheme:"sqlite3" ~path:dbpath ~query:["create", ["false"]] ())
>>= fun (module Db : Caqti_lwt.CONNECTION) ->
Db.find Builder_db.get_application_id () >>= fun application_id ->
Db.find Builder_db.get_version () >>= (fun version ->
if (application_id, version) = Builder_db.(application_id, current_version)
then Lwt_result.return ()
else Lwt_result.fail (`Wrong_version (application_id, version)))
>>= fun () ->
Model.cleanup_staging datadir (module Db))
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let pp_exec ppf ((job : Builder.script_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 =
if Fpath.is_seg path && not (Fpath.is_rel_seg path)
then Ok (Fpath.v path)
else Rresult.R.error_msgf "unsafe path %S" path
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(* mime lookup with orb knowledge *)
let mime_lookup path =
match Fpath.to_string path with
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| "build-environment" | "opam-switch" | "system-packages" ->
"text/plain"
| _ ->
if Fpath.has_ext "build-hashes" path
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then "text/plain"
else if Fpath.is_prefix Fpath.(v "bin/") path
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then "application/octet-stream"
else Magic_mime.lookup (Fpath.to_string path)
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let or_error_response r =
let* r = r in
match r with
| Ok response -> Lwt.return response
| Error (text, status) -> Dream.respond ~status text
let if_error ?(status = `Internal_Server_Error) ?(log=(fun e -> Log.warn (fun m -> m "%s: %a" (Dream.status_to_string status) pp_error e))) message r =
let* r = r in
match r with
| Error `Not_found ->
Lwt_result.fail ("Resource not found", `Not_Found)
| Error (#Model.error as e) ->
log e;
Lwt_result.fail (message, status)
| Ok _ as r -> Lwt.return r
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let string_of_html =
Format.asprintf "%a" (Tyxml.Html.pp ())
let get_uuid s =
Lwt.return
(if String.length s = 36 then
match Uuidm.of_string s with
| Some uuid -> Ok uuid
| None -> Error ("Bad uuid", `Bad_Request)
else Error ("Bad uuid", `Bad_Request))
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let add_routes datadir =
let datadir_global = Dream.new_global ~name:"datadir" (fun () -> datadir) in
let builder req =
(* TODO filter unsuccessful builds, ?failed=true *)
Dream.sql req Model.jobs_with_section_synopsis
|> if_error "Error getting jobs"
~log:(fun e -> Log.warn (fun m -> m "Error getting jobs: %a" pp_error e))
>>= fun jobs ->
List.fold_right
(fun (job_id, job_name, section, synopsis) r ->
r >>= fun acc ->
Dream.sql req (Model.build_meta job_id) >>= function
| Some (latest_build, latest_artifact) ->
let v = (job_name, synopsis, latest_build, latest_artifact) in
let section = Option.value ~default:"Failed" section in
Lwt_result.return (Utils.String_map.add_or_create section v acc)
| None ->
Log.warn (fun m -> m "Job without builds: %s" job_name);
Lwt_result.return acc)
jobs
(Lwt_result.return Utils.String_map.empty)
|> if_error "Error getting jobs"
~log:(fun e -> Log.warn (fun m -> m "Error getting jobs: %a" pp_error e))
>>= fun jobs ->
Views.builder jobs |> string_of_html |> Dream.html |> Lwt_result.ok
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in
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let job req =
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let job_name = Dream.param "job" req in
Dream.sql req (Model.job job_name)
|> if_error "Error getting job"
~log:(fun e -> Log.warn (fun m -> m "Error getting job: %a" pp_error e))
>>= fun builds ->
Views.job job_name builds |> string_of_html |> Dream.html |> Lwt_result.ok
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in
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let redirect_latest req =
let job_name = Dream.param "job" req in
let path = Dream.path req |> String.concat "/" in
(Dream.sql req (Model.job_id job_name) >>= Model.not_found >>= fun job_id ->
Dream.sql req (Model.latest_successful_build_uuid job_id))
>>= Model.not_found
|> if_error "Error getting job" >>= fun build ->
Dream.redirect req
(Fmt.strf "/job/%s/build/%a/%s" job_name Uuidm.pp build path)
|> Lwt_result.ok
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in
let job_build req =
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let job_name = Dream.param "job" req
and build = Dream.param "build" req in
get_uuid build >>= fun uuid ->
(Dream.sql req (Model.build uuid) >>= fun (build_id, build) ->
Dream.sql req (Model.build_artifacts build_id) >>= fun artifacts ->
Dream.sql req (Model.latest_successful_build_uuid build.job_id) >>= fun latest_uuid ->
Dream.sql req (Model.previous_successful_build build_id) >|= fun previous_build ->
(build, artifacts, latest_uuid, previous_build))
|> if_error "Error getting job build"
~log:(fun e -> Log.warn (fun m -> m "Error getting job build: %a" pp_error e))
>>= fun (build, artifacts, latest_uuid, previous_build) ->
Views.job_build job_name build artifacts latest_uuid previous_build |> string_of_html |> Dream.html
|> Lwt_result.ok
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in
let job_build_file req =
let datadir = Dream.global datadir_global req in
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let _job_name = Dream.param "job" req
and build = Dream.param "build" req
and filepath = Dream.path req |> String.concat "/" in
let if_none_match = Dream.header "if-none-match" req in
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(* XXX: We don't check safety of [file]. This should be fine however since
* we don't use [file] for the filesystem but is instead used as a key for
* lookup in the data table of the 'full' file. *)
get_uuid build >>= fun build ->
Fpath.of_string filepath |> Rresult.R.open_error_msg |> Lwt_result.lift
|> if_error ~status:`Not_Found "File not found" >>= fun filepath ->
Dream.sql req (Model.build_artifact build filepath)
|> if_error "Error getting build artifact" >>= fun file ->
let etag = Base64.encode_string (Cstruct.to_string file.Builder_db.sha256) in
match if_none_match with
| Some etag' when etag = etag' ->
Dream.empty `Not_Modified |> Lwt_result.ok
| _ ->
Model.build_artifact_data datadir file
|> if_error "Error getting build artifact"
~log:(fun e -> Log.warn (fun m -> m "Error getting build artifact data for file %a in %a: %a"
Fpath.pp file.Builder_db.filepath Fpath.pp file.Builder_db.localpath
pp_error e)) >>= fun data ->
let headers = [
"Content-Type", mime_lookup file.Builder_db.filepath;
"ETag", etag;
] in
Dream.respond ~headers data |> Lwt_result.ok
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in
let upload req =
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let* body = Dream.body req in
Builder.Asn.exec_of_cs (Cstruct.of_string body) |> Lwt.return
|> if_error ~status:`Bad_Request "Bad request"
~log:(fun e ->
Log.warn (fun m -> m "Received bad builder ASN.1: %a" pp_error e))
>>= fun ((({ name ; _ } : Builder.script_job), uuid, _, _, _, _, _) as exec) ->
Log.debug (fun m -> m "Received build %a" pp_exec exec);
Authorization.authorized req name
|> if_error ~status:`Forbidden "Forbidden" >>= fun () ->
Dream.sql req (Model.build_exists uuid)
|> if_error "Internal server error"
~log:(fun e ->
Log.warn (fun m -> m "Error saving build %a: %a" pp_exec exec pp_error e))
>>= function
| true ->
Log.warn (fun m -> m "Build with same uuid exists: %a" pp_exec exec);
Dream.respond ~status:`Conflict
(Fmt.strf "Build with same uuid exists: %a\n" Uuidm.pp uuid)
|> Lwt_result.ok
| false ->
let datadir = Dream.global datadir_global req in
(Lwt.return (Dream.local Authorization.user_info_local req |>
Option.to_result ~none:(`Msg "no authenticated user")) >>= fun (user_id, _) ->
Dream.sql req (Model.add_build datadir user_id exec))
|> if_error "Internal server error"
~log:(fun e -> Log.warn (fun m -> m "Error saving build %a: %a" pp_exec exec pp_error e))
>>= fun () -> Dream.respond "" |> Lwt_result.ok
in
let hash req =
Dream.query "sha256" req |> Option.to_result ~none:(`Msg "Missing sha256 query parameter") |> Lwt.return
|> if_error ~status:`Bad_Request "Bad request" >>= fun hash_hex ->
begin try Hex.to_cstruct (`Hex hash_hex) |> Lwt_result.return
with Invalid_argument e -> Lwt_result.fail (`Msg ("Bad hex: " ^ e))
end
|> if_error ~status:`Bad_Request "Bad request" >>= fun hash ->
Dream.sql req (Model.build_hash hash) >>= Model.not_found
|> if_error "Internal server error" >>= fun (job_name, build) ->
Dream.redirect req
(Fmt.strf "/job/%s/build/%a/" job_name Uuidm.pp build.Builder_db.Build.uuid)
|> Lwt_result.ok
in
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let compare_opam req =
let datadir = Dream.global datadir_global req in
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let build_left = Dream.param "build_left" req in
let build_right = Dream.param "build_right" req in
get_uuid build_left >>= fun build_left ->
get_uuid build_right >>= fun build_right ->
(Dream.sql req (Model.build build_left) >>= fun (_id, build_left) ->
Dream.sql req (Model.build build_right) >>= fun (_id, build_right) ->
Dream.sql req (Model.build_artifact build_left.Builder_db.Build.uuid (Fpath.v "opam-switch")) >>=
Model.build_artifact_data datadir >>= fun switch_left ->
Dream.sql req (Model.build_artifact build_right.Builder_db.Build.uuid (Fpath.v "opam-switch")) >>=
Model.build_artifact_data datadir >>= fun switch_right ->
Dream.sql req (Model.job_name build_left.job_id) >>= fun job_left ->
Dream.sql req (Model.job_name build_right.job_id) >|= fun job_right ->
(job_left, job_right, build_left, build_right, switch_left, switch_right))
|> if_error "Internal server error"
>>= fun (job_left, job_right, build_left, build_right, switch_left, switch_right) ->
let switch_left = OpamFile.SwitchExport.read_from_string switch_left
and switch_right = OpamFile.SwitchExport.read_from_string switch_right in
Opamdiff.compare switch_left switch_right
|> Views.compare_opam job_left job_right build_left build_right
|> string_of_html |> Dream.html |> Lwt_result.ok
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in
let upload_binary req =
let job = Dream.param "job" req in
let* body = Dream.body req in
Authorization.authorized req job
|> if_error ~status:`Forbidden "Forbidden" >>= fun () ->
let uuid = Uuidm.v4_gen (Random.State.make_self_init ()) () in
Dream.sql req (Model.build_exists uuid)
|> if_error "Internal server error"
~log:(fun e ->
Log.warn (fun m -> m "Error saving binary %S: %a" job pp_error e))
>>= function
| true ->
Log.warn (fun m -> m "Build %S with same uuid exists: %a" job Uuidm.pp uuid);
Dream.respond ~status:`Conflict
(Fmt.strf "Build with same uuid exists: %a\n" Uuidm.pp uuid)
|> Lwt_result.ok
| false ->
let datadir = Dream.global datadir_global req in
let exec =
let now = Ptime_clock.now () in
({ Builder.name = job ; script = "" }, uuid, [], now, now, Builder.Exited 0,
[ (Fpath.(v "bin" / job + "bin"), body) ])
in
(Lwt.return (Dream.local Authorization.user_info_local req |>
Option.to_result ~none:(`Msg "no authenticated user")) >>= fun (user_id, _) ->
Dream.sql req (Model.add_build datadir user_id exec))
|> if_error "Internal server error"
~log:(fun e -> Log.warn (fun m -> m "Error saving build %a: %a" pp_exec exec pp_error e))
>>= fun () -> Dream.respond "" |> Lwt_result.ok
in
let w f req = or_error_response (f req) in
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Dream.router [
Dream.get "/" (w builder);
Dream.get "/job/:job/" (w job);
Dream.get "/job/:job/build/latest/**" (w redirect_latest);
Dream.get "/job/:job/build/:build/" (w job_build);
Dream.get "/job/:job/build/:build/f/**" (w job_build_file);
Dream.get "/hash" (w hash);
Dream.get "/compare/:build_left/:build_right/opam-switch" (w compare_opam);
Dream.post "/upload" (Authorization.authenticate (w upload));
Dream.post "/job/:job/upload" (Authorization.authenticate (w upload_binary));
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]