* [PATCH] import: github: Catch HTTP 403 error during fetch.
@ 2017-01-17 8:17 Mathieu OTHACEHE
2017-01-19 16:19 ` Ludovic Courtès
0 siblings, 1 reply; 2+ messages in thread
From: Mathieu OTHACEHE @ 2017-01-17 8:17 UTC (permalink / raw)
To: guix-devel
* guix/import/github.scm (json-fetch*): Catch 403 HTTP error that may be
raised if a github token has not been set.
Signed-off-by: Mathieu OTHACEHE <m.othacehe@gmail.com>
---
Hi,
If too many github requests are made during a guix refresh (> 60/h),
github will reject all further requests with a 403 error.
The 403 error is not catch in json-fetch* guard, so guix refresh
will exit at that point. The user never gets to error message
informing that setting a GUIX_GITHUB_TOKEN may fix the problem.
Mathieu
guix/import/github.scm | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/guix/import/github.scm b/guix/import/github.scm
index df5a6b0e0..1e0bb53d9 100644
--- a/guix/import/github.scm
+++ b/guix/import/github.scm
@@ -32,10 +32,13 @@
(define (json-fetch* url)
"Return a representation of the JSON resource URL (a list or hash table), or
-#f if URL returns 404."
+#f if URL returns 403 or 404."
(guard (c ((and (http-get-error? c)
- (= 404 (http-get-error-code c)))
- #f)) ;"expected" if package is unknown
+ (let ((error (http-get-error-code c)))
+ (or (= 403 error)
+ (= 404 error))))
+ #f)) ;; "expected" if there is an authentification error (403),
+ ;; or if package is unknown (404).
;; Note: github.com returns 403 if we omit a 'User-Agent' header.
(let* ((port (http-fetch url))
(result (json->scm port)))
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] import: github: Catch HTTP 403 error during fetch.
2017-01-17 8:17 [PATCH] import: github: Catch HTTP 403 error during fetch Mathieu OTHACEHE
@ 2017-01-19 16:19 ` Ludovic Courtès
0 siblings, 0 replies; 2+ messages in thread
From: Ludovic Courtès @ 2017-01-19 16:19 UTC (permalink / raw)
To: Mathieu OTHACEHE; +Cc: guix-devel
Mathieu OTHACEHE <m.othacehe@gmail.com> skribis:
> * guix/import/github.scm (json-fetch*): Catch 403 HTTP error that may be
> raised if a github token has not been set.
>
> Signed-off-by: Mathieu OTHACEHE <m.othacehe@gmail.com>
> ---
>
> Hi,
>
> If too many github requests are made during a guix refresh (> 60/h),
> github will reject all further requests with a 403 error.
>
> The 403 error is not catch in json-fetch* guard, so guix refresh
> will exit at that point. The user never gets to error message
> informing that setting a GUIX_GITHUB_TOKEN may fix the problem.
Looks like the right to do indeed. Applied, thanks!
Ludo’.
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