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|
;;; Guix Data Service -- Information about Guix over time
;;; Copyright © 2016, 2017, 2018, 2019 Ricardo Wurmus <rekado@elephly.net>
;;; 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 controller)
#:use-module (ice-9 match)
#:use-module (ice-9 vlist)
#:use-module (ice-9 pretty-print)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-11)
#:use-module (srfi srfi-26)
#:use-module (web request)
#:use-module (web uri)
#:use-module (texinfo)
#:use-module (texinfo html)
#:use-module (texinfo plain-text)
#:use-module (squee)
#:use-module (json)
#:use-module (guix-data-service comparison)
#:use-module (guix-data-service database)
#:use-module (guix-data-service model git-branch)
#:use-module (guix-data-service model git-repository)
#:use-module (guix-data-service model guix-revision)
#:use-module (guix-data-service model package)
#:use-module (guix-data-service model package-derivation)
#:use-module (guix-data-service model package-metadata)
#:use-module (guix-data-service model derivation)
#:use-module (guix-data-service model build-status)
#:use-module (guix-data-service model build)
#:use-module (guix-data-service jobs load-new-guix-revision)
#:use-module (guix-data-service web render)
#:use-module (guix-data-service web sxml)
#:use-module (guix-data-service web query-parameters)
#:use-module (guix-data-service web util)
#:use-module (guix-data-service web view html)
#:export (controller))
(define cache-control-default-max-age
(* 60 60 24)) ; One day
(define http-headers-for-unchanging-content
`((cache-control
. (public
(max-age . ,cache-control-default-max-age)))))
(define-syntax-rule (-> target functions ...)
(fold (lambda (f val) (and=> val f))
target
(list functions ...)))
(define (render-with-error-handling page message)
(apply render-html (page))
;; (catch #t
;; (lambda ()
;; (receive (sxml headers)
;; (pretty-print (page))
;; (render-html sxml headers)))
;; (lambda (key . args)
;; (format #t "ERROR: ~a ~a\n"
;; key args)
;; (render-html (error-page message))))
)
(define (assoc-ref-multiple alist key)
(filter-map
(match-lambda
((k . value)
(and (string=? k key)
value)))
alist))
(define (with-base-and-target-commits query-parameters conn f)
(let* ((base-commit (assoc-ref query-parameters "base_commit"))
(target-commit (assoc-ref query-parameters "target_commit")))
(f base-commit
(commit->revision-id conn base-commit)
target-commit
(commit->revision-id conn target-commit))))
(define* (render-view-revision mime-types
conn
commit-hash
#:key path-base
(header-text
`("Revision " (samp ,commit-hash))))
(let ((packages-count
(count-packages-in-revision conn commit-hash))
(git-repositories-and-branches
(git-branches-with-repository-details-for-commit conn commit-hash))
(derivations-counts
(count-packages-derivations-in-revision conn commit-hash)))
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
`((packages_count . ,(caar packages-count))
(derivations_counts . ,(list->vector
(map (match-lambda
((system target derivation_count)
`((system . ,system)
(target . ,target)
(derivation_count . ,derivation_count))))
derivations-counts))))
#:extra-headers http-headers-for-unchanging-content))
(else
(render-html
#:sxml (view-revision
commit-hash
packages-count
git-repositories-and-branches
derivations-counts
#:path-base path-base
#:header-text header-text)
#:extra-headers http-headers-for-unchanging-content)))))
(define (texinfo->variants-alist s)
(let ((stexi (texi-fragment->stexi s)))
`((source . ,s)
(html . ,(with-output-to-string
(lambda ()
(sxml->html (stexi->shtml stexi)))))
(plain . ,(stexi->plain-text stexi)))))
(define (render-unknown-revision mime-types conn commit-hash)
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
'((unknown_commit . ,commit-hash))
#:code 404))
(else
(render-html
#:code 404
#:sxml (unknown-revision
commit-hash
(select-job-for-commit
conn commit-hash))))))
(define* (render-revision-packages mime-types
conn
commit-hash
query-parameters
#:key
(path-base "/revision/")
(header-text
`("Revision " (samp ,commit-hash)))
(header-link
(string-append "/revision/" commit-hash)))
(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-revision-packages commit-hash
query-parameters
'()
'()
#f))))
(let* ((search-query (assq-ref query-parameters 'search_query))
(limit-results (or (assq-ref query-parameters 'limit_results)
99999)) ; TODO There shouldn't be a limit
(fields (assq-ref query-parameters 'field))
(packages
(if search-query
(search-packages-in-revision
conn
commit-hash
search-query
#:limit-results limit-results)
(select-packages-in-revision
conn
commit-hash
#:limit-results limit-results
#:after-name (assq-ref query-parameters 'after_name))))
(git-repositories
(git-repositories-containing-commit conn
commit-hash))
(show-next-page?
(and (not search-query)
(>= (length packages)
limit-results))))
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
`((revision
. ((commit . ,commit-hash)))
(packages
. ,(list->vector
(map (match-lambda
((name version synopsis description home-page
location-file location-line
location-column-number licenses)
`((name . ,name)
,@(if (member "version" fields)
`((version . ,version))
'())
,@(if (member "synopsis" fields)
`((synopsis
. ,(texinfo->variants-alist synopsis)))
'())
,@(if (member "description" fields)
`((description
. ,(texinfo->variants-alist description)))
'())
,@(if (member "home-page" fields)
`((home-page . ,home-page))
'())
,@(if (member "location" fields)
`((location
. ((file . ,location-file)
(line . ,location-line)
(column . ,location-column-number))))
'())
,@(if (member "licenses" fields)
`((licenses
. ,(if (string-null? licenses)
#()
(json-string->scm licenses))))
'()))))
packages))))
#:extra-headers http-headers-for-unchanging-content))
(else
(render-html
#:sxml (view-revision-packages commit-hash
query-parameters
packages
git-repositories
show-next-page?
#:path-base path-base
#:header-text header-text
#:header-link header-link)
#:extra-headers http-headers-for-unchanging-content))))))
(define* (render-revision-package mime-types
conn
commit-hash
name
version
#:key
(header-text
`("Revision "
(samp ,commit-hash)))
(header-link
(string-append
"/revision/" commit-hash)))
(let ((metadata
(select-package-metadata-by-revision-name-and-version
conn
commit-hash
name
version))
(derivations
(select-derivations-by-revision-name-and-version
conn
commit-hash
name
version))
(git-repositories
(git-repositories-containing-commit conn
commit-hash)))
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
`((name . ,name)
(version . ,version)
,@(match metadata
(((synopsis description home-page))
`((synopsis . ,synopsis)
(description . ,description)
(home-page . ,home-page))))
(derivations . ,(list->vector
(map (match-lambda
((system target file-name status)
`((system . ,system)
(target . ,target)
(derivation . ,file-name))))
derivations))))
#:extra-headers http-headers-for-unchanging-content))
(else
(render-html
#:sxml (view-revision-package-and-version commit-hash
name
version
metadata
derivations
git-repositories
#:header-text header-text
#:header-link header-link)
#:extra-headers http-headers-for-unchanging-content)))))
(define (render-compare-unknown-commit mime-types
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
'((unknown_commit . #t))))
(else
(render-html
#:sxml (compare-unknown-commit base-commit
target-commit
(if base-revision-id #t #f)
(if target-revision-id #t #f)
(select-job-for-commit conn
base-commit)
(select-job-for-commit conn
target-commit))))))
(define (render-compare mime-types
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(let-values
(((base-packages-vhash target-packages-vhash)
(package-data->package-data-vhashes
(package-differences-data conn
base-revision-id
target-revision-id))))
(let* ((new-packages
(package-data-vhashes->new-packages base-packages-vhash
target-packages-vhash))
(removed-packages
(package-data-vhashes->removed-packages base-packages-vhash
target-packages-vhash))
(version-changes
(package-data-version-changes base-packages-vhash
target-packages-vhash))
(derivation-changes
(package-data-derivation-changes base-packages-vhash
target-packages-vhash)))
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
`((new-packages . ,(list->vector new-packages))
(removed-packages . ,(list->vector removed-packages))
(version-changes . ,version-changes)
(derivation-changes . ,derivation-changes))
#:extra-headers http-headers-for-unchanging-content))
(else
(render-html
#:sxml (compare base-commit
target-commit
new-packages
removed-packages
version-changes
derivation-changes)
#:extra-headers http-headers-for-unchanging-content))))))
(define (render-compare/derivations mime-types
conn
query-parameters)
(define (derivations->alist derivations)
(map (match-lambda
((file-name system target buildstatus)
`((file_name . ,file-name)
(system . ,system)
(target . ,target)
(build_status . ,(if (string=? buildstatus "")
"unknown"
buildstatus)))))
derivations))
(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 (compare/derivations
query-parameters
(valid-systems conn)
build-status-strings
'()
'()))))
(let ((base-commit (assq-ref query-parameters 'base_commit))
(target-commit (assq-ref query-parameters 'target_commit))
(systems (assq-ref query-parameters 'system))
(targets (assq-ref query-parameters 'target))
(build-statuses (assq-ref query-parameters 'build_status)))
(let-values
(((base-packages-vhash target-packages-vhash)
(package-data->package-data-vhashes
(package-differences-data conn
(commit->revision-id conn base-commit)
(commit->revision-id conn target-commit)))))
(let ((base-derivations
(package-data-vhash->derivations-and-build-status
conn
base-packages-vhash
systems
targets
build-statuses))
(target-derivations
(package-data-vhash->derivations-and-build-status
conn
target-packages-vhash
systems
targets
build-statuses)))
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
`((base . ((commit . ,base-commit)
(derivations . ,(list->vector
(derivations->alist
base-derivations)))))
(target . ((commit . ,target-commit)
(derivations . ,(list->vector
(derivations->alist
target-derivations))))))
#:extra-headers http-headers-for-unchanging-content))
(else
(render-html
#:sxml (compare/derivations
query-parameters
(valid-systems conn)
build-status-strings
base-derivations
target-derivations)
#:extra-headers http-headers-for-unchanging-content))))))))
(define (render-compare/packages mime-types
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(define (package-data-vhash->json vh)
(delete-duplicates
(vhash-fold (lambda (name data result)
(cons `((name . ,name)
(version . ,(car data)))
result))
'()
vh)))
(let-values
(((base-packages-vhash target-packages-vhash)
(package-data->package-data-vhashes
(package-differences-data conn
base-revision-id
target-revision-id))))
(case (most-appropriate-mime-type
'(application/json text/html)
mime-types)
((application/json)
(render-json
`((base
. ((commit . ,base-commit)
(packages . ,(list->vector
(package-data-vhash->json base-packages-vhash)))))
(target
. ((commit . ,target-commit)
(packages . ,(list->vector
(package-data-vhash->json target-packages-vhash))))))
#:extra-headers http-headers-for-unchanging-content))
(else
(render-html
#:sxml (compare/packages
base-commit
target-commit
base-packages-vhash
target-packages-vhash)
#:extra-headers http-headers-for-unchanging-content)))))
(define (render-derivation conn derivation-file-name)
(let ((derivation (select-derivation-by-file-name conn
derivation-file-name)))
(if derivation
(let ((derivation-inputs (select-derivation-inputs-by-derivation-id
conn
(first derivation)))
(derivation-outputs (select-derivation-outputs-by-derivation-id
conn
(first derivation)))
(builds (select-builds-with-context-by-derivation-id
conn
(first derivation))))
(render-html
#:sxml (view-derivation derivation
derivation-inputs
derivation-outputs
builds)
#:extra-headers http-headers-for-unchanging-content))
#f ;; TODO
)))
(define (render-store-item conn filename)
(let ((derivation (select-derivation-by-output-filename conn filename)))
(match derivation
(()
(render-html
#:sxml (general-not-found
"Store item not found"
"No derivation found producing this output")
#:code 404))
(derivations
(render-html
#:sxml (view-store-item filename
derivations
(map (lambda (derivation)
(match derivation
((file-name output-id rest ...)
(select-derivations-using-output
conn output-id))))
derivations))
#:extra-headers http-headers-for-unchanging-content)))))
(define (parse-commit conn)
(lambda (s)
(if (guix-commit-exists? conn s)
s
(make-invalid-query-parameter
s "unknown commit"))))
(define (parse-system s)
s)
(define (parse-build-status s)
s)
(define (controller request method-and-path-components mime-types body)
(match method-and-path-components
((GET "assets" rest ...)
(or (render-static-asset (string-join rest "/")
(request-headers request))
(not-found (request-uri request))))
((GET "healthcheck")
(let ((database-status
(catch
#t
(lambda ()
(with-postgresql-connection
(lambda (conn)
(number?
(string->number
(first
(count-guix-revisions conn)))))))
(lambda (key . args)
(peek key args)
#f))))
(render-json
`((status . ,(if database-status
"ok"
"not ok")))
#:code (if (eq? database-status
#t)
200
500))))
(_
(with-postgresql-connection
(lambda (conn)
(controller-with-database-connection request
method-and-path-components
mime-types
body
conn))))))
(define (controller-with-database-connection request
method-and-path-components
mime-types
body
conn)
(define query-parameters
(-> request
request-uri
uri-query
parse-query-string))
(define path
(uri-path (request-uri request)))
(match method-and-path-components
((GET)
(render-html
#:sxml (index
(map
(lambda (git-repository-details)
(cons
git-repository-details
(map
(match-lambda
((id job-id commit source)
(list id
job-id
commit
source
(git-branches-for-commit conn commit))))
(guix-revisions-and-jobs-for-git-repository
conn
(car git-repository-details)))))
(all-git-repositories conn)))))
((GET "builds")
(render-html
#:sxml (view-builds (select-build-stats conn)
(select-builds-with-context conn))))
((GET "statistics")
(render-html
#:sxml (view-statistics (count-guix-revisions conn)
(count-derivations conn))))
((GET "revision" commit-hash) (if (guix-commit-exists? conn commit-hash)
(render-view-revision mime-types
conn
commit-hash
#:path-base path)
(render-unknown-revision mime-types
conn
commit-hash)))
((GET "revision" commit-hash "packages")
(if (guix-commit-exists? conn commit-hash)
(let ((parsed-query-parameters
(guard-against-mutually-exclusive-query-parameters
(parse-query-parameters
request
`((after_name ,identity)
(field ,identity #:multi-value
#:default ("version" "synopsis"))
(search_query ,identity)
(limit_results ,parse-result-limit
#:no-default-when (all_results)
#:default 100)
(all_results ,parse-checkbox-value)))
;; You can't specify a search query, but then also limit the
;; results by filtering for after a particular package name
'((after_name search_query)
(limit_results all_results)))))
(render-revision-packages mime-types
conn
commit-hash
parsed-query-parameters
#:path-base path))
(render-unknown-revision mime-types
conn
commit-hash)))
((GET "revision" commit-hash "package" name version)
(if (guix-commit-exists? conn commit-hash)
(render-revision-package mime-types
conn
commit-hash
name
version)
(render-unknown-revision mime-types
conn
commit-hash)))
((GET "branches")
(render-html
#:sxml (view-branches
(all-branches-with-most-recent-commit conn))))
((GET "branch" branch-name)
(let ((parsed-query-parameters
(parse-query-parameters
request
`((after_date ,parse-datetime)
(before_date ,parse-datetime)
(limit_results ,parse-result-limit #:default 100)))))
(render-html
#:sxml (if (any-invalid-query-parameters? parsed-query-parameters)
(view-branch branch-name parsed-query-parameters '())
(view-branch
branch-name
parsed-query-parameters
(most-recent-commits-for-branch
conn
branch-name
#:limit (assq-ref parsed-query-parameters 'limit_results)
#:after-date (assq-ref parsed-query-parameters
'after_date)
#:before-date (assq-ref parsed-query-parameters
'before_date)))))))
((GET "branch" branch-name "latest-processed-revision")
(let ((commit-hash
(latest-processed-commit-for-branch conn branch-name)))
(if commit-hash
(render-view-revision mime-types
conn
commit-hash
#:path-base path
#:header-text
`("Latest processed revision for branch "
(samp ,branch-name)))
(render-unknown-revision mime-types
conn
commit-hash))))
((GET "branch" branch-name "latest-processed-revision" "packages")
(let ((commit-hash
(latest-processed-commit-for-branch conn branch-name)))
(if commit-hash
(let ((parsed-query-parameters
(guard-against-mutually-exclusive-query-parameters
(parse-query-parameters
request
`((after_name ,identity)
(field ,identity #:multi-value
#:default ("version" "synopsis"))
(search_query ,identity)
(limit_results ,parse-result-limit
#:no-default-when (all_results)
#:default 100)
(all_results ,parse-checkbox-value)))
;; You can't specify a search query, but then also limit the
;; results by filtering for after a particular package name
'((after_name search_query)
(limit_results all_results)))))
(render-revision-packages mime-types
conn
commit-hash
parsed-query-parameters
#:path-base path
#:header-text
`("Latest processed revision for branch "
(samp ,branch-name))
#:header-link
(string-append
"/branch/" branch-name
"/latest-processed-revision")))
(render-unknown-revision mime-types
conn
commit-hash))))
((GET "branch" branch-name "latest-processed-revision" "package" name version)
(let ((commit-hash
(latest-processed-commit-for-branch conn branch-name)))
(if commit-hash
(render-revision-package mime-types
conn
commit-hash
name
version
#:header-text
`("Latest processed revision for branch "
(samp ,branch-name))
#:header-link
(string-append
"/branch/" branch-name
"/latest-processed-revision"))
(render-unknown-revision mime-types
conn
commit-hash))))
((GET "gnu" "store" filename)
;; These routes are a little special, as the extensions aren't used for
;; content negotiation, so just use the path from the request
(let ((path (uri-path (request-uri request))))
(if (string-suffix? ".drv" path)
(render-derivation conn path)
(render-store-item conn path))))
((GET "compare")
(with-base-and-target-commits
query-parameters conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit mime-types
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare mime-types
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET "compare" "derivations")
(let* ((parsed-query-parameters
(parse-query-parameters
request
`((base_commit ,(parse-commit conn) #:required)
(target_commit ,(parse-commit conn) #:required)
(system ,parse-system #:multi-value)
(target ,parse-system #:multi-value)
(build_status ,parse-build-status #:multi-value)))))
(render-compare/derivations mime-types
conn
parsed-query-parameters)))
((GET "compare" "packages")
(with-base-and-target-commits
query-parameters conn
(lambda (base-commit base-revision-id target-commit target-revision-id)
(if (not (and base-revision-id target-revision-id))
(render-compare-unknown-commit mime-types
conn
base-commit
base-revision-id
target-commit
target-revision-id)
(render-compare/packages mime-types
conn
base-commit
base-revision-id
target-commit
target-revision-id)))))
((GET path ...)
(not-found (request-uri request)))))
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