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http: Accept date strings with a leading space for hours.

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Fixes <http://bugs.gnu.org/23421>.
Reported by Ricardo Wurmus <ricardo.wurmus@mdc-berlin.de>.

* module/web/http.scm (parse-rfc-822-date): Add two clauses for hours
with a leading space.
* test-suite/tests/web-http.test ("general headers"): Add two tests.
This commit is contained in:
Ludovic Courtès 2016-05-08 21:52:33 +02:00 • committed by Andy Wingo
parent 140496cc00
commit b9f6e89a27
2 changed files with 30 additions and 0 deletions
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20
module/web/http.scm
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@ -751,6 +751,26 @@ as an ordered alist."
(minute (parse-non-negative-integer str 19 21))
(second (parse-non-negative-integer str 22 24)))
(make-date 0 second minute hour date month year zone-offset)))
;; The next two clauses match dates that have a space instead of
;; a leading zero for hours, like " 8:49:37".
((string-match? (substring str 0 space) "aaa, dd aaa dddd d:dd:dd")
(let ((date (parse-non-negative-integer str 5 7))
(month (parse-month str 8 11))
(year (parse-non-negative-integer str 12 16))
(hour (parse-non-negative-integer str 18 19))
(minute (parse-non-negative-integer str 20 22))
(second (parse-non-negative-integer str 23 25)))
(make-date 0 second minute hour date month year zone-offset)))
((string-match? (substring str 0 space) "aaa, d aaa dddd d:dd:dd")
(let ((date (parse-non-negative-integer str 5 6))
(month (parse-month str 7 10))
(year (parse-non-negative-integer str 11 15))
(hour (parse-non-negative-integer str 17 18))
(minute (parse-non-negative-integer str 19 21))
(second (parse-non-negative-integer str 22 24)))
(make-date 0 second minute hour date month year zone-offset)))
(else
(bad-header 'date str) ; prevent tail call
#f)))