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;;; Guix Data Service -- Information about Guix over time
;;; Copyright © 2019 Christopher Baines <mail@cbaines.net>
;;;
;;; This program is free software: you can redistribute it and/or
;;; modify it under the terms of the GNU Affero General Public License
;;; as published by the Free Software Foundation, either version 3 of
;;; the License, or (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;; Affero General Public License for more details.
;;;
;;; You should have received a copy of the GNU Affero General Public
;;; License along with this program. If not, see
;;; <http://www.gnu.org/licenses/>.
(define-module (guix-data-service web build-server controller)
#:use-module (srfi srfi-1)
#:use-module (ice-9 match)
#:use-module (rnrs bytevectors)
#:use-module (json)
#:use-module (fibers)
#:use-module (guix-data-service utils)
#:use-module (guix-data-service database)
#:use-module (guix-data-service substitutes)
#:use-module (guix-data-service web render)
#:use-module (guix-data-service web query-parameters)
#:use-module (guix-data-service web controller)
#:use-module (guix-data-service jobs load-new-guix-revision)
#:use-module (guix-data-service model utils)
#:use-module (guix-data-service model build)
#:use-module (guix-data-service model build-server)
#:use-module (guix-data-service model build-status)
#:use-module (guix-data-service model blocked-builds)
#:use-module (guix-data-service model nar)
#:use-module (guix-data-service model build-server-token-seed)
#:use-module (guix-data-service web util)
#:use-module (guix-data-service web view html)
#:use-module (guix-data-service web jobs html)
#:use-module (guix-data-service web build-server html)
#:export (build-server-controller))
(define (render-build mime-types
build-server-id
query-parameters)
(if (any-invalid-query-parameters? query-parameters)
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
`((error . "invalid query"))))
(else
(render-html
#:sxml (view-build query-parameters
#f
#f))))
(let* ((derivation-file-name
(assq-ref query-parameters 'derivation_file_name))
(build-server-build-id
(assq-ref query-parameters 'build_server_build_id))
(build
(with-resource-from-pool (connection-pool) conn
(if build-server-build-id
(select-build-by-build-server-and-build-server-build-id
conn
build-server-id
build-server-build-id)
(select-build-by-build-server-and-derivation-file-name
conn
build-server-id
derivation-file-name)))))
(if build
(render-html
#:sxml
(view-build query-parameters
build
(match build
((build-server-url build-server-build-id
derivation-file-name statuses)
(if (member
(assoc-ref (last (vector->list statuses))
"status")
'("failed-dependency"
"scheduled")) ; scheduled, because the
; guix-build-coordinator
; doesn't mark builds as
; failed-dependency
(with-resource-from-pool (connection-pool) conn
(select-required-builds-that-failed
conn
build-server-id
derivation-file-name))
#f)))))
(render-html
#:sxml (general-not-found
"Build not found"
"No build found for this build server and derivation.")
#:code 404)))))
(define (render-build-servers mime-types
build-servers)
(render-html
#:sxml
(view-build-servers build-servers)))
(define (render-build-server mime-types
build-server)
(render-html
#:sxml
(view-build-server build-server)))
(define (handle-build-event-submission parsed-query-parameters
build-server-id-string
body
secret-key-base)
(define build-server-id
(string->number build-server-id-string))
(define (spawn-fiber-for-handler handler)
(spawn-fiber
(lambda ()
(with-resource-from-pool (connection-pool) conn
(with-exception-handler
(lambda (exn)
(simple-format
(current-error-port)
"exception in build event handler: ~A\n"
exn))
(lambda ()
(with-throw-handler #t
(lambda ()
(handler conn))
(lambda _
(display (backtrace) (current-error-port))
(display "\n" (current-error-port)))))
#:unwind? #t)))))
(define (with-build-ids-for-status data
build-ids
statuses
handler)
(let ((ids
(delete-duplicates
(filter-map
(lambda (build-id item-data)
(if (and (string=? (assoc-ref item-data "type")
"build")
(member (assoc-ref item-data "event")
statuses))
build-id
#f))
build-ids
data)
=)))
(unless (null? ids)
(handler ids))))
(define (handle-derivation-events conn items)
(if (null? items)
'()
(let ((build-ids
(insert-builds
conn
build-server-id
(map (lambda (item)
(assoc-ref item "derivation"))
items)
(map (lambda (item)
(and=>
(assoc-ref item "derivation_outputs")
(lambda (outputs)
(map
(lambda (output)
`((path . ,(assoc-ref output "output"))
(hash_algorithm
. ,(or (assoc-ref output "hash_algorithm")
NULL))
(hash . ,(or (assoc-ref output "hash")
NULL))
(recursive . ,(assoc-ref output "recursive"))))
(vector->list outputs)))))
items)
(map (lambda (item)
(assoc-ref item "build_id"))
items))))
(insert-build-statuses
conn
build-ids
(map
(lambda (item-data)
(list (assoc-ref item-data "timestamp")
(assoc-ref item-data "event")))
items)
#:transaction? #f)
build-ids)))
(define (process-items items)
(define filtered-items
(filter (lambda (item)
(let ((type (assoc-ref item "type")))
(if type
(string=? type "build")
(begin
(simple-format
(current-error-port)
"warning: unknown type for event: ~A\n"
item)
#f))))
items))
(let ((build-ids
(with-resource-from-pool (reserved-connection-pool) conn
(with-postgresql-transaction
conn
(lambda (conn)
(handle-derivation-events
conn
filtered-items))))))
(with-build-ids-for-status
items
build-ids
'("succeeded")
(lambda (ids)
(spawn-fiber-for-handler
(lambda (conn)
(handle-removing-blocking-build-entries-for-successful-builds
conn ids)))
(request-query-of-build-server-substitutes build-server-id
ids)))
(with-build-ids-for-status
items
build-ids
'("scheduled")
(lambda (ids)
(spawn-fiber-for-handler
(lambda (conn)
(handle-blocked-builds-entries-for-scheduled-builds conn ids)))))
(with-build-ids-for-status
items
build-ids
'("failed" "failed-dependency" "canceled")
(lambda (ids)
(spawn-fiber-for-handler
(lambda (conn)
(handle-populating-blocked-builds-for-build-failures conn ids)))))))
(if (any-invalid-query-parameters? parsed-query-parameters)
(render-json
'((error . "no token provided"))
#:code 400)
(let ((provided-token (assq-ref parsed-query-parameters 'token))
(permitted-tokens
(with-resource-from-pool (reserved-connection-pool) conn
(compute-tokens-for-build-server conn
secret-key-base
build-server-id))))
(if (member provided-token
(map cdr permitted-tokens)
string=?)
(catch
'json-invalid
(lambda ()
(let ((body-string (utf8->string body)))
(let* ((body-json (json-string->scm body-string))
(items (and=> (assoc-ref body-json "items")
vector->list)))
(cond
((eq? items #f)
(render-json
'((error . "missing items key"))
#:code 400))
((null? items)
(render-json
'((error . "no items to process"))
#:code 400))
(else
(catch
#t
(lambda ()
(process-items items)
(no-content))
(lambda (key . args)
(simple-format (current-error-port)
"error processing events: ~A: ~A\n"
key
args)
(for-each (lambda (item)
(simple-format (current-error-port)
" ~A\n" item))
items)
(render-json
'((error . "could not process events"))
#:code 500))))))))
(lambda (key . args)
(render-json
'((error . "could not parse body as JSON"))
#:code 400)))
(render-json
'((error . "error"))
#:code 403)))))
(define (handle-signing-key-request id)
(render-html
#:sxml (view-signing-key
(with-resource-from-pool (connection-pool) conn
(select-signing-key conn id)))))
(define (build-server-controller request
method-and-path-components
mime-types
body
secret-key-base)
(match method-and-path-components
(('GET "build-servers")
(let ((build-servers
(with-resource-from-pool (connection-pool) conn
select-build-servers)))
(render-build-servers mime-types
build-servers)))
(('GET "build-server" build-server-id)
(let ((build-server
(with-resource-from-pool (connection-pool) conn
(lambda (conn)
(select-build-server conn (string->number
build-server-id))))))
(if build-server
(render-build-server mime-types
build-server)
(general-not-found "Build server not found" ""))))
(('GET "build-server" build-server-id "build")
(let ((parsed-query-parameters
(parse-query-parameters
request
`((derivation_file_name ,identity)
(build_server_build_id ,identity)))))
(render-build mime-types
(string->number build-server-id)
parsed-query-parameters)))
(('POST "build-server" build-server-id "build-events")
(let ((parsed-query-parameters
(parse-query-parameters
request
`((token ,identity #:required)))))
(handle-build-event-submission parsed-query-parameters
build-server-id
body
secret-key-base)))
(('GET "build-server" "signing-key" id)
(handle-signing-key-request (string->number id)))
(_ #f)))
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