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;; This file is part of scheme-GNUnet.
;; Copyright (C) 2021 Maxime Devos
;;
;; scheme-GNUnet 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.
;;
;; scheme-GNUnet 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/>.
;;
;; SPDX-License-Identifier: AGPL3.0-or-later
(import (gnu gnunet config db)
(gnu gnunet config expand)
(gnu gnunet config fs)
(gnu gnunet config parser)
(rnrs exceptions)
(srfi srfi-1)
(srfi srfi-64))
(test-begin "config-fs")
(define (alist->getenv alist)
(lambda (x)
(assoc-ref alist x)))
(test-equal "locate-user-configuraton, XDG_CONFIG_HOME + HOME"
"/somewhere/unusual/gnunet.conf"
(locate-user-configuration
#:getenv
(alist->getenv '(("HOME" . "/a/home")
("XDG_CONFIG_HOME" . "/somewhere/unusual")))))
(test-equal "locate-user-configuraton, XDG_CONFIG_HOME without HOME"
"/somewhere/unusual/gnunet.conf"
(locate-user-configuration
#:getenv
(alist->getenv '(("XDG_CONFIG_HOME" . "/somewhere/unusual")))))
(test-equal "locate-user-configuration, no XDG_CONFIG_HOME"
"/a/home/.config/gnunet.conf"
(locate-user-configuration
#:getenv
(alist->getenv '(("HOME" . "/a/home")))))
(test-equal "locate-user-configuration, empty XDG_CONFIG_HOME"
"/a/home/.config/gnunet.conf"
(locate-user-configuration
#:getenv
(alist->getenv '(("HOME" . "/a/home")
("XDG_CONFIG_HOME" . "")))))
(test-equal "locate-user-configuration, no XDG_CONFIG_HOME, no HOME"
#false
(locate-user-configuration
#:getenv
(alist->getenv '())))
(test-equal "locate-user-configuration, no XDG_CONFIG_HOME, empty HOME"
#false
(locate-user-configuration
#:getenv
(alist->getenv '(("HOME" . "")))))
(define (load-string->alist/unexpanded s)
(call-with-input-string s
(lambda (p)
(define a '())
(define (set-value! section key value)
(pk 's section key value)
(set! a `(((,section . ,key) . ,value) ,@a))
(values))
(load-configuration/port! set-value! p)
a)))
;; TODO: better error reporting
(test-equal "load-configuration/port!, literal read-value"
`((("section" . "VAR")
. #("VAR = VALUE" 2 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "[section]\nVAR = VALUE"))
(test-equal "load-configuration/port!, empty"
'()
(load-string->alist/unexpanded ""))
(test-error "load-configuration/port!, assignment outside section"
"assignment outside section"
(load-string->alist/unexpanded "VAR = VALUE"))
(test-equal "load-configuration/port!, literal read-value after empty line"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "[section]\n\nVAR = VALUE"))
(test-equal "load-configuration/port!, section after empty line"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "\n[section]\nVAR = VALUE"))
(test-error "load-configuration/port!, bogus syntax before section"
"unrecognised syntax at line ???"
(load-string->alist/unexpanded "]\n[section]\n"))
(test-error "load-configuration/port!, bogus syntax after section"
"unrecognised syntax at line ???"
(load-string->alist/unexpanded "[section]\n]"))
(test-equal "load-configuration/port!, skip comment (#) after section"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "[section]\n#\nVAR = VALUE"))
(test-equal "load-configuration/port!, skip comment (%) after section"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "[section]\n#\nVAR = VALUE"))
(test-equal "load-configuration/port!, skip empty line after section"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "[section]\n\nVAR = VALUE"))
(test-equal "load-configuration/port!, skip comment (#) before section"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "#\n[section]\nVAR = VALUE"))
(test-equal "load-configuration/port!, skip comment (%) before section"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "%\n[section]\nVAR = VALUE"))
(test-equal "load-configuration/port!, skip empty line before section"
`((("section" . "VAR")
. #("VAR = VALUE" 3 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded "\n[section]\nVAR = VALUE"))
(test-equal "load-configuration/port!, two sections"
`((("section2" . "VAR2")
. #("VAR2 = VALUE2" 4 (,(make-literal-position 7 13))))
(("section1" . "VAR")
. #("VAR = VALUE" 2 (,(make-literal-position 6 11)))))
(load-string->alist/unexpanded
"[section1]\nVAR = VALUE\n[section2]\nVAR2 = VALUE2"))
(define (load-string->config/expanded text environment-variables)
(make-expanded-configuration
(lambda (set-value!)
(call-with-input-string text
(lambda (p)
(load-configuration/port! set-value! p))))
#:getenv
(alist->getenv environment-variables)))
(define (load-string->alist/expanded text interested environment-variables)
(define config (load-string->config/expanded text environment-variables))
(filter-map (lambda (section+key)
`(,section+key
. ,(guard (c ((undefined-key-error? c) 'undefined))
(read-value identity config (car section+key)
(cdr section+key)))))
interested))
(test-equal "make-expanded-configuration, one variable"
'((("sect" . "var") . "iable"))
(load-string->alist/expanded "[sect]\nvar=iable"
'(("sect" . "var")) '()))
;; Detected a missing 'list'
(test-equal "make-expanded-configuration, expand variable (via getenv)"
'((("sect" . "var") . "iable"))
(load-string->alist/expanded "[sect]\nvar=i$a"
'(("sect" . "var")) '(("a" . "able"))))
(test-equal "make-expanded-configuration, expand variable (via getenv, fancyness)"
'((("sect" . "var") . "i}\\$able%f'"))
(load-string->alist/expanded "[sect]\nvar=i$a"
'(("sect" . "var"))
'(("a" . "}\\$able%f'"))))
(test-equal "make-expanded-configuration, expand variable (via PATHS)"
'((("sect" . "var") . "iable")
(("PATHS" . "something") . "able"))
(load-string->alist/expanded
"[sect]\nvar=i$something\n[PATHS]\nsomething=able"
'(("sect" . "var")
("PATHS" . "something"))
'()))
;; Detects incorrect implementation of substring=? (string=? was used instead)
(test-equal "make-expanded-configuration, expand variable (via PATHS + getenv)"
'((("sect" . "var") . "iable")
(("PATHS" . "something") . "able"))
(load-string->alist/expanded
"[sect]\nvar=i$something\n[PATHS]\nsomething=a$else"
'(("sect" . "var")
("PATHS" . "something"))
'(("else" . "ble"))))
;; Detect implementations of substring=? that always return #f.
(test-equal "make-expanded-configuration, loop detected"
#t
(guard (c ((expansion-loop-error? c) #t))
(load-string->alist/expanded
"[sect]\nvar=i${something}\n[PATHS]\nsomething=d${something}"
'(("PATHS" . "something"))
'(("something" . "unused")))))
(test-end "config-fs")
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