GNU bug report logs - #54836
[PATCH 1/2] http-client: Fix redirection.

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Package: guix-patches; Reported by: Attila Lendvai <attila@HIDDEN>; Keywords: moreinfo patch; dated Sun, 10 Apr 2022 13:35:03 UTC; Maintainer for guix-patches is guix-patches@HIDDEN.
Added tag(s) moreinfo. Request was from Maxim Cournoyer <maxim.cournoyer@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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From: Maxim Cournoyer <maxim.cournoyer@HIDDEN>
To: Attila Lendvai <attila@HIDDEN>
Subject: Re: bug#54836: [PATCH 1/2] http-client: Fix redirection.
References: <20220410133431.30058-1-attila@HIDDEN>
 <20220410134114.371-1-attila@HIDDEN> <87v8vfiya2.fsf_-_@HIDDEN>
 <TEOfd1QUBofS5gzJHP15SC0Lq_iRfWnto0m99ZpFBNJYGIc41qK2tR79kaOhzZPSV_r-EYJdlDJ7Ib8rRO3OJYN_6wNtqTrPZvFwm-1i53E=@lendvai.name>
 <8735hyjlix.fsf@HIDDEN>
Date: Tue, 03 Jan 2023 17:29:33 -0500
In-Reply-To: <8735hyjlix.fsf@HIDDEN> ("Ludovic =?utf-8?Q?Court=C3=A8s=22'?=
 =?utf-8?Q?s?= message of "Wed, 27 Apr 2022 22:53:26 +0200")
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Hi Attila,

Ludovic Court=C3=A8s <ludo@HIDDEN> writes:

> Hi,
>
> And sorry for the delay.
>
> Attila Lendvai <attila@HIDDEN> skribis:
>
>>> > It's not enough to just handle the thrown exception, because we need =
to be
>>> > able to get hold of the fetched content, too.
>>>
>>> Would it make sense, then, to use the lower-level =E2=80=98http-get=E2=
=80=99 from (web
>>> client)? That would let the code deal with all the HTTP idiosyncrasies.
>>
>>
>> i think it boils down to this trade-off:
>>
>> 1) keep http-fetch simpler, at the expense of reimplementing parts of
>>    it in the go importer (e.g. the redirection logic)
>>
>> 2) add this extra complexity to http-fetch, and avoid the extra
>>    complexity of a local, potentially half-assed %http-fetch in the go
>>    importer.
>>
>> 3) something else i'm not aware of
>
> For now, I=E2=80=99m somewhat in favor of #1.
>
> My take would be: try to implement whatever=E2=80=99s needed specifically=
 for
> the Go importer; from there, we can eventually revisit that situation
> and maybe switch to something that=E2=80=99s more like #2.
>
> How does that sound?

I think we're missing your reworked 1/3 patch here, taking into account the=
 above
feedback from Ludo.

--=20
Thanks,
Maxim




Information forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.

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From: Attila Lendvai <attila@HIDDEN>
To: 54836 <at> debbugs.gnu.org
Subject: [PATCH v3] http-client: Factor out open-connection*, rename variables.
Date: Thu, 28 Apr 2022 12:22:34 +0200
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This is an idempotent refactor.

* guix/http-client.scm (http-fetch): Introduce open-connection*. Rename some
variables to turn programmer mistakes into compile time errors.
---

v3: i have reordered the commits so that i can send this idempotent
refactor. i think this would be a useful addition to master. it makes
the code more defensive against future programmer mistakes, but
other than that it shouldn't change the semantics.

apply this as you see fit. the rest i'll do in the go importer's module.

 guix/http-client.scm | 66 ++++++++++++++++++++++----------------------
 1 file changed, 33 insertions(+), 33 deletions(-)

diff --git a/guix/http-client.scm b/guix/http-client.scm
index a367c41afa..6c61fd3d8e 100644
--- a/guix/http-client.scm
+++ b/guix/http-client.scm
@@ -100,15 +100,17 @@ (define* (http-fetch uri #:key port (text? #f) (buffered? #t)
 Write information about redirects to LOG-PORT.
 
 Raise an '&http-get-error' condition if downloading fails."
-  (define uri*
+  (define parsed-initial-uri
     (if (string? uri) (string->uri uri) uri))
 
-  (let loop ((uri uri*)
-             (port (or port (open-connection uri*
-                                             #:verify-certificate?
-                                             verify-certificate?
-                                             #:timeout timeout))))
-    (let ((headers (match (uri-userinfo uri)
+  (define (open-connection* uri)
+    (open-connection uri
+                     #:verify-certificate? verify-certificate?
+                     #:timeout timeout))
+
+  (let loop ((current-uri parsed-initial-uri)
+             (current-port (or port (open-connection parsed-initial-uri))))
+    (let ((headers (match (uri-userinfo current-uri)
                      ((? string? str)
                       (cons (cons 'Authorization
                                   (string-append "Basic "
@@ -116,10 +118,10 @@ (define uri*
                                                   (string->utf8 str))))
                             headers))
                      (_ headers))))
-      (unless (or buffered? (not (file-port? port)))
-        (setvbuf port 'none))
+      (unless (or buffered? (not (file-port? current-port)))
+        (setvbuf current-port 'none))
       (let*-values (((resp data)
-                     (http-get uri #:streaming? #t #:port port
+                     (http-get current-uri #:streaming? #t #:port current-port
                                #:keep-alive? keep-alive?
                                #:headers headers))
                     ((code)
@@ -132,36 +134,34 @@ (define uri*
             303                                   ; see other
             307                                   ; temporary redirection
             308)                                  ; permanent redirection
-           (let ((host (uri-host uri))
-                 (uri  (resolve-uri-reference (response-location resp) uri)))
+           (let ((host (uri-host current-uri))
+                 (new-uri (resolve-uri-reference (response-location resp)
+                                                 current-uri)))
              (if keep-alive?
                  (dump-port data (%make-void-port "w0")
                             (response-content-length resp))
-                 (close-port port))
+                 (close-port current-port))
              (format log-port (G_ "following redirection to `~a'...~%")
-                     (uri->string uri))
-             (loop uri
+                     (uri->string new-uri))
+             (loop new-uri
                    (or (and keep-alive?
-                            (or (not (uri-host uri))
-                                (string=? host (uri-host uri)))
-                            port)
-                       (open-connection uri
-                                        #:verify-certificate?
-                                        verify-certificate?
-                                        #:timeout timeout)))))
+                            (or (not (uri-host new-uri))
+                                (string=? host (uri-host new-uri)))
+                            current-port)
+                       (open-connection* new-uri)))))
           (else
            (raise (condition (&http-get-error
-                              (uri uri)
-                              (code code)
-                              (reason (response-reason-phrase resp))
-                              (headers (response-headers resp)))
-                             (&message
-                              (message
-                               (format
-                                #f
-                                (G_ "~a: HTTP download failed: ~a (~s)")
-                                (uri->string uri) code
-                                (response-reason-phrase resp))))))))))))
+                                  (uri current-uri)
+                                  (code code)
+                                  (reason (response-reason-phrase resp))
+                                  (headers (response-headers resp)))
+                                 (&message
+                                  (message
+                                   (format
+                                    #f
+                                    (G_ "~a: HTTP download failed: ~a (~s)")
+                                    (uri->string current-uri) code
+                                    (response-reason-phrase resp))))))))))))
 
 (define-syntax-rule (false-if-networking-error exp)
   "Return #f if EXP triggers a network related exception as can occur when
-- 
2.35.1





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bug#54836; Package guix-patches. Full text available.

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From: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
To: Attila Lendvai <attila@HIDDEN>
Subject: Re: bug#54836: [PATCH 1/2] http-client: Fix redirection.
References: <20220410133431.30058-1-attila@HIDDEN>
 <20220410134114.371-1-attila@HIDDEN> <87v8vfiya2.fsf_-_@HIDDEN>
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 (Attila Lendvai's message of "Tue, 12 Apr 2022 07:28:33 +0000")
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Hi,

And sorry for the delay.

Attila Lendvai <attila@HIDDEN> skribis:

>> > It's not enough to just handle the thrown exception, because we need t=
o be
>> > able to get hold of the fetched content, too.
>>
>> Would it make sense, then, to use the lower-level =E2=80=98http-get=E2=
=80=99 from (web
>> client)? That would let the code deal with all the HTTP idiosyncrasies.
>
>
> i think it boils down to this trade-off:
>
> 1) keep http-fetch simpler, at the expense of reimplementing parts of
>    it in the go importer (e.g. the redirection logic)
>
> 2) add this extra complexity to http-fetch, and avoid the extra
>    complexity of a local, potentially half-assed %http-fetch in the go
>    importer.
>
> 3) something else i'm not aware of

For now, I=E2=80=99m somewhat in favor of #1.

My take would be: try to implement whatever=E2=80=99s needed specifically f=
or
the Go importer; from there, we can eventually revisit that situation
and maybe switch to something that=E2=80=99s more like #2.

How does that sound?

Thanks,
Ludo=E2=80=99.




Information forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.

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To: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
From: Attila Lendvai <attila@HIDDEN>
Subject: Re: bug#54836: [PATCH 1/2] http-client: Fix redirection.
Message-ID: <T85_Nvw-LsLO7PH3chsQrAxbadvabr52b_En56SVdyZERm9P-7NbvA63h-eF-rUKePndSP99xYx5XfuTNu3UcmorvUS_yzFWTLLIVNMGt6M=@lendvai.name>
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> i think it boils down to this trade-off:
>
> 1) keep http-fetch simpler, at the expense of reimplementing parts of
> it in the go importer (e.g. the redirection logic)
>
> 2) add this extra complexity to http-fetch, and avoid the extra
> complexity of a local, potentially half-assed %http-fetch in the go
> importer.
>
> 3) something else i'm not aware of
>
> please advise how to reshape this patch/feature, because it's needed
> to file my go importer patches.


can someone with authority please decide how to proceed with this?

(the reason is that i'd like to file my golang importer improvements
before it develops a painful merge conflict with master.)

--
=E2=80=A2 attila lendvai
=E2=80=A2 PGP: 963F 5D5F 45C7 DFCD 0A39
--
=E2=80=9CYour living is determined not so much by what life brings to you a=
s by the attitude you bring to life; not so much by what happens to you as =
by the way your mind looks at what happens.=E2=80=9D
=09=E2=80=94 Khalil Gibran (1883=E2=80=931931)





Information forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.

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To: =?utf-8?Q?Ludovic_Court=C3=A8s?= <ludo@HIDDEN>
From: Attila Lendvai <attila@HIDDEN>
Subject: Re: bug#54836: [PATCH 1/2] http-client: Fix redirection.
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> > It's not enough to just handle the thrown exception, because we need to=
 be
> > able to get hold of the fetched content, too.
>
> Would it make sense, then, to use the lower-level =E2=80=98http-get=
=E2=80=99 from (web
> client)? That would let the code deal with all the HTTP idiosyncrasies.


i think it boils down to this trade-off:

1) keep http-fetch simpler, at the expense of reimplementing parts of
   it in the go importer (e.g. the redirection logic)

2) add this extra complexity to http-fetch, and avoid the extra
   complexity of a local, potentially half-assed %http-fetch in the go
   importer.

3) something else i'm not aware of

please advise how to reshape this patch/feature, because it's needed
to file my go importer patches.

--
=E2=80=A2 attila lendvai
=E2=80=A2 PGP: 963F 5D5F 45C7 DFCD 0A39
--
The use of power is only needed when you want to do something harmful, othe=
rwise love is enough to get everything done.





Information forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.

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To: Attila Lendvai <attila@HIDDEN>
Subject: Re: bug#54836: [PATCH 1/2] http-client: Fix redirection.
References: <20220410133431.30058-1-attila@HIDDEN>
 <20220410134114.371-1-attila@HIDDEN>
Date: Mon, 11 Apr 2022 14:45:41 +0200
In-Reply-To: <20220410134114.371-1-attila@HIDDEN> (Attila Lendvai's
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Hi,

Attila Lendvai <attila@HIDDEN> skribis:

> This is needed when dealing with golang packages, as per:
> https://golang.org/ref/mod#vcs-find
>
> A page may return 404, but at the same time also contain the sought after
> `go-import` meta tag.  An example for such a project/page is:
> https://www.gonum.org/v1/gonum?go-get=3D1
>
> It's not enough to just handle the thrown exception, because we need to be
> able to get hold of the fetched content, too.

Would it make sense, then, to use the lower-level =E2=80=98http-get=E2=80=
=99 from (web
client)?  That would let the code deal with all the HTTP idiosyncrasies.

Ludo=E2=80=99.




Information forwarded to guix-patches@HIDDEN:
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Subject: Re: bug#54836: [PATCH 1/2] http-client: Fix redirection.
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Hi,

Attila Lendvai <attila@HIDDEN> skribis:

> * guix/http-client.scm (http-fetch): Use the right uri variable in case of
> redirection.
> ---
>  guix/http-client.scm | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/guix/http-client.scm b/guix/http-client.scm
> index 8a5b3deecd..b8689a22ed 100644
> --- a/guix/http-client.scm
> +++ b/guix/http-client.scm
> @@ -148,7 +148,7 @@ (define uri*
>                              (or (not (uri-host uri))
>                                  (string=3D? host (uri-host uri)))
>                              port)
> -                       (open-connection uri*
> +                       (open-connection uri

Good catch!  This fixes <https://issues.guix.gnu.org/54609>.

Applied.

Ludo=E2=80=99.




Information forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.

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From: Attila Lendvai <attila@HIDDEN>
To: 54836 <at> debbugs.gnu.org
Subject: [PATCH 3/3] http-client: Factor out open-connection*,
 rename variables.
Date: Sun, 10 Apr 2022 15:41:15 +0200
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This is an idempotent refactor.

* guix/http-client.scm (http-fetch): Introduce open-connection*. Rename some
variables to turn programmer mistakes into compile errors.
---
 guix/http-client.scm | 48 ++++++++++++++++++++++----------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/guix/http-client.scm b/guix/http-client.scm
index b8689a22ed..3c5115068d 100644
--- a/guix/http-client.scm
+++ b/guix/http-client.scm
@@ -103,15 +103,17 @@ (define* (http-fetch uri #:key port (text? #f) (buffered? #t)
 When ACCEPT-ALL-RESPONSE-CODES? is false then raise an '&http-get-error'
 condition if downloading fails, otherwise return the response regardless
 of the reponse code."
-  (define uri*
+  (define parsed-initial-uri
     (if (string? uri) (string->uri uri) uri))
 
-  (let loop ((uri uri*)
-             (port (or port (open-connection uri*
-                                             #:verify-certificate?
-                                             verify-certificate?
-                                             #:timeout timeout))))
-    (let ((headers (match (uri-userinfo uri)
+  (define (open-connection* uri)
+    (open-connection uri
+                     #:verify-certificate? verify-certificate?
+                     #:timeout timeout))
+
+  (let loop ((current-uri parsed-initial-uri)
+             (current-port (or port (open-connection parsed-initial-uri))))
+    (let ((headers (match (uri-userinfo current-uri)
                      ((? string? str)
                       (cons (cons 'Authorization
                                   (string-append "Basic "
@@ -119,10 +121,10 @@ (define uri*
                                                   (string->utf8 str))))
                             headers))
                      (_ headers))))
-      (unless (or buffered? (not (file-port? port)))
-        (setvbuf port 'none))
+      (unless (or buffered? (not (file-port? current-port)))
+        (setvbuf current-port 'none))
       (let*-values (((resp data)
-                     (http-get uri #:streaming? #t #:port port
+                     (http-get current-uri #:streaming? #t #:port current-port
                                #:keep-alive? keep-alive?
                                #:headers headers))
                     ((code)
@@ -135,28 +137,26 @@ (define uri*
             303                                   ; see other
             307                                   ; temporary redirection
             308)                                  ; permanent redirection
-           (let ((host (uri-host uri))
-                 (uri  (resolve-uri-reference (response-location resp) uri)))
+           (let ((host (uri-host current-uri))
+                 (new-uri (resolve-uri-reference (response-location resp)
+                                                 current-uri)))
              (if keep-alive?
                  (dump-port data (%make-void-port "w0")
                             (response-content-length resp))
-                 (close-port port))
+                 (close-port current-port))
              (format log-port (G_ "following redirection to `~a'...~%")
-                     (uri->string uri))
-             (loop uri
+                     (uri->string new-uri))
+             (loop new-uri
                    (or (and keep-alive?
-                            (or (not (uri-host uri))
-                                (string=? host (uri-host uri)))
-                            port)
-                       (open-connection uri
-                                        #:verify-certificate?
-                                        verify-certificate?
-                                        #:timeout timeout)))))
+                            (or (not (uri-host new-uri))
+                                (string=? host (uri-host new-uri)))
+                            current-port)
+                       (open-connection* new-uri)))))
           (else
            (if accept-all-response-codes?
                (values data (response-content-length resp))
                (raise (condition (&http-get-error
-                                  (uri uri)
+                                  (uri current-uri)
                                   (code code)
                                   (reason (response-reason-phrase resp))
                                   (headers (response-headers resp)))
@@ -165,7 +165,7 @@ (define uri*
                                    (format
                                     #f
                                     (G_ "~a: HTTP download failed: ~a (~s)")
-                                    (uri->string uri) code
+                                    (uri->string current-uri) code
                                     (response-reason-phrase resp)))))))))))))
 
 (define-syntax-rule (false-if-networking-error exp)
-- 
2.34.0





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From: Attila Lendvai <attila@HIDDEN>
To: 54836 <at> debbugs.gnu.org
Subject: [PATCH 2/3] http-client: Fix redirection.
Date: Sun, 10 Apr 2022 15:41:14 +0200
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* guix/http-client.scm (http-fetch): Use the right uri variable in case of
redirection.
---
 guix/http-client.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guix/http-client.scm b/guix/http-client.scm
index 8a5b3deecd..b8689a22ed 100644
--- a/guix/http-client.scm
+++ b/guix/http-client.scm
@@ -148,7 +148,7 @@ (define uri*
                             (or (not (uri-host uri))
                                 (string=? host (uri-host uri)))
                             port)
-                       (open-connection uri*
+                       (open-connection uri
                                         #:verify-certificate?
                                         verify-certificate?
                                         #:timeout timeout)))))
-- 
2.34.0





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Subject: [PATCH v2 1/3] http-client: Added accept-all-response-codes? argument.
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This is needed when dealing with golang packages, as per:
https://golang.org/ref/mod#vcs-find

A page may return 404, but at the same time also contain the sought after
`go-import` meta tag.  An example for such a project/page is:
https://www.gonum.org/v1/gonum?go-get=1

It's not enough to just handle the thrown exception, because we need to be
able to get hold of the fetched content, too.

* guix/http-client.scm (http-fetch): Add #:accept-all-response-codes? keyword
argument defaulting to #f, and implement the logic.
---

oops, resending because the first version doesn't apply on master.

v2 also contains an initial commit, a feature addition that is needed
for my (soon to be sent) improvements to the go importer.

 guix/http-client.scm | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/guix/http-client.scm b/guix/http-client.scm
index 143ed6de31..8a5b3deecd 100644
--- a/guix/http-client.scm
+++ b/guix/http-client.scm
@@ -82,7 +82,8 @@ (define* (http-fetch uri #:key port (text? #f) (buffered? #t)
                      (verify-certificate? #t)
                      (headers '((user-agent . "GNU Guile")))
                      (log-port (current-error-port))
-                     timeout)
+                     timeout
+                     (accept-all-response-codes? #f))
   "Return an input port containing the data at URI, and the expected number of
 bytes available or #f.  If TEXT? is true, the data at URI is considered to be
 textual.  Follow any HTTP redirection.  When BUFFERED? is #f, return an
@@ -99,7 +100,9 @@ (define* (http-fetch uri #:key port (text? #f) (buffered? #t)
 
 Write information about redirects to LOG-PORT.
 
-Raise an '&http-get-error' condition if downloading fails."
+When ACCEPT-ALL-RESPONSE-CODES? is false then raise an '&http-get-error'
+condition if downloading fails, otherwise return the response regardless
+of the reponse code."
   (define uri*
     (if (string? uri) (string->uri uri) uri))
 
@@ -150,18 +153,20 @@ (define uri*
                                         verify-certificate?
                                         #:timeout timeout)))))
           (else
-           (raise (condition (&http-get-error
-                              (uri uri)
-                              (code code)
-                              (reason (response-reason-phrase resp))
-                              (headers (response-headers resp)))
-                             (&message
-                              (message
-                               (format
-                                #f
-                                (G_ "~a: HTTP download failed: ~a (~s)")
-                                (uri->string uri) code
-                                (response-reason-phrase resp))))))))))))
+           (if accept-all-response-codes?
+               (values data (response-content-length resp))
+               (raise (condition (&http-get-error
+                                  (uri uri)
+                                  (code code)
+                                  (reason (response-reason-phrase resp))
+                                  (headers (response-headers resp)))
+                                 (&message
+                                  (message
+                                   (format
+                                    #f
+                                    (G_ "~a: HTTP download failed: ~a (~s)")
+                                    (uri->string uri) code
+                                    (response-reason-phrase resp)))))))))))))
 
 (define-syntax-rule (false-if-networking-error exp)
   "Return #f if EXP triggers a network related exception as can occur when
-- 
2.34.0





Information forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.

Message received at 54836 <at> debbugs.gnu.org:


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From: Attila Lendvai <attila@HIDDEN>
To: 54836 <at> debbugs.gnu.org
Subject: [PATCH 2/2] http-client: Factor out open-connection*,
 rename variables.
Date: Sun, 10 Apr 2022 15:35:37 +0200
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This is an idempotent refactor.

* guix/http-client.scm (http-fetch): Introduce open-connection*. Rename some
variables to turn programmer mistakes into compile errors.
---
 guix/http-client.scm | 48 ++++++++++++++++++++++----------------------
 1 file changed, 24 insertions(+), 24 deletions(-)

diff --git a/guix/http-client.scm b/guix/http-client.scm
index b8689a22ed..3c5115068d 100644
--- a/guix/http-client.scm
+++ b/guix/http-client.scm
@@ -103,15 +103,17 @@ (define* (http-fetch uri #:key port (text? #f) (buffered? #t)
 When ACCEPT-ALL-RESPONSE-CODES? is false then raise an '&http-get-error'
 condition if downloading fails, otherwise return the response regardless
 of the reponse code."
-  (define uri*
+  (define parsed-initial-uri
     (if (string? uri) (string->uri uri) uri))
 
-  (let loop ((uri uri*)
-             (port (or port (open-connection uri*
-                                             #:verify-certificate?
-                                             verify-certificate?
-                                             #:timeout timeout))))
-    (let ((headers (match (uri-userinfo uri)
+  (define (open-connection* uri)
+    (open-connection uri
+                     #:verify-certificate? verify-certificate?
+                     #:timeout timeout))
+
+  (let loop ((current-uri parsed-initial-uri)
+             (current-port (or port (open-connection parsed-initial-uri))))
+    (let ((headers (match (uri-userinfo current-uri)
                      ((? string? str)
                       (cons (cons 'Authorization
                                   (string-append "Basic "
@@ -119,10 +121,10 @@ (define uri*
                                                   (string->utf8 str))))
                             headers))
                      (_ headers))))
-      (unless (or buffered? (not (file-port? port)))
-        (setvbuf port 'none))
+      (unless (or buffered? (not (file-port? current-port)))
+        (setvbuf current-port 'none))
       (let*-values (((resp data)
-                     (http-get uri #:streaming? #t #:port port
+                     (http-get current-uri #:streaming? #t #:port current-port
                                #:keep-alive? keep-alive?
                                #:headers headers))
                     ((code)
@@ -135,28 +137,26 @@ (define uri*
             303                                   ; see other
             307                                   ; temporary redirection
             308)                                  ; permanent redirection
-           (let ((host (uri-host uri))
-                 (uri  (resolve-uri-reference (response-location resp) uri)))
+           (let ((host (uri-host current-uri))
+                 (new-uri (resolve-uri-reference (response-location resp)
+                                                 current-uri)))
              (if keep-alive?
                  (dump-port data (%make-void-port "w0")
                             (response-content-length resp))
-                 (close-port port))
+                 (close-port current-port))
              (format log-port (G_ "following redirection to `~a'...~%")
-                     (uri->string uri))
-             (loop uri
+                     (uri->string new-uri))
+             (loop new-uri
                    (or (and keep-alive?
-                            (or (not (uri-host uri))
-                                (string=? host (uri-host uri)))
-                            port)
-                       (open-connection uri
-                                        #:verify-certificate?
-                                        verify-certificate?
-                                        #:timeout timeout)))))
+                            (or (not (uri-host new-uri))
+                                (string=? host (uri-host new-uri)))
+                            current-port)
+                       (open-connection* new-uri)))))
           (else
            (if accept-all-response-codes?
                (values data (response-content-length resp))
                (raise (condition (&http-get-error
-                                  (uri uri)
+                                  (uri current-uri)
                                   (code code)
                                   (reason (response-reason-phrase resp))
                                   (headers (response-headers resp)))
@@ -165,7 +165,7 @@ (define uri*
                                    (format
                                     #f
                                     (G_ "~a: HTTP download failed: ~a (~s)")
-                                    (uri->string uri) code
+                                    (uri->string current-uri) code
                                     (response-reason-phrase resp)))))))))))))
 
 (define-syntax-rule (false-if-networking-error exp)
-- 
2.34.0





Information forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.

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From: Attila Lendvai <attila@HIDDEN>
To: guix-patches@HIDDEN
Subject: [PATCH 1/2] http-client: Fix redirection.
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* guix/http-client.scm (http-fetch): Use the right uri variable in case of
redirection.
---
 guix/http-client.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/guix/http-client.scm b/guix/http-client.scm
index 8a5b3deecd..b8689a22ed 100644
--- a/guix/http-client.scm
+++ b/guix/http-client.scm
@@ -148,7 +148,7 @@ (define uri*
                             (or (not (uri-host uri))
                                 (string=? host (uri-host uri)))
                             port)
-                       (open-connection uri*
+                       (open-connection uri
                                         #:verify-certificate?
                                         verify-certificate?
                                         #:timeout timeout)))))
-- 
2.34.0





Acknowledgement sent to Attila Lendvai <attila@HIDDEN>:
New bug report received and forwarded. Copy sent to guix-patches@HIDDEN. Full text available.
Report forwarded to guix-patches@HIDDEN:
bug#54836; Package guix-patches. Full text available.
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