linux-kernel - [PATCH] tty: vt: Replace HTTP links with HTTPS ones

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Message-Id: <20200718133452.24290-1-grandmaster@al2klimov.de>
Date:   Sat, 18 Jul 2020 15:34:52 +0200
From:   "Alexander A. Klimov" <grandmaster@...klimov.de>
To:     gregkh@...uxfoundation.org, jslaby@...e.com, corbet@....net,
        nico@...xnic.net, sam@...nborg.org, lukas@...ner.de,
        ebiggers@...gle.com, nivedita@...m.mit.edu,
        linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     "Alexander A. Klimov" <grandmaster@...klimov.de>
Subject: [PATCH] tty: vt: Replace HTTP links with HTTPS ones

Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov <grandmaster@...klimov.de>
---
 Continuing my work started at 93431e0607e5.
 See also: git log --oneline '--author=Alexander A. Klimov <grandmaster@...klimov.de>' v5.7..master
 (Actually letting a shell for loop submit all this stuff for me.)

 If there are any URLs to be removed completely
 or at least not (just) HTTPSified:
 Just clearly say so and I'll *undo my change*.
 See also: https://lkml.org/lkml/2020/6/27/64

 If there are any valid, but yet not changed URLs:
 See: https://lkml.org/lkml/2020/6/26/837

 If you apply the patch, please let me know.

 Sorry again to all maintainers who complained about subject lines.
 Now I realized that you want an actually perfect prefixes,
 not just subsystem ones.
 I tried my best...
 And yes, *I could* (at least half-)automate it.
 Impossible is nothing! :)


 Documentation/driver-api/serial/n_gsm.rst | 2 +-
 drivers/tty/vt/vt.c                       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/driver-api/serial/n_gsm.rst b/Documentation/driver-api/serial/n_gsm.rst
index 286e7ff4d2d9..87dfcd54a96b 100644
--- a/Documentation/driver-api/serial/n_gsm.rst
+++ b/Documentation/driver-api/serial/n_gsm.rst
@@ -5,7 +5,7 @@ GSM 0710 tty multiplexor HOWTO
 This line discipline implements the GSM 07.10 multiplexing protocol
 detailed in the following 3GPP document:
 
-	http://www.3gpp.org/ftp/Specs/archive/07_series/07.10/0710-720.zip
+	https://www.3gpp.org/ftp/Specs/archive/07_series/07.10/0710-720.zip
 
 This document give some hints on how to use this driver with GPRS and 3G
 modems connected to a physical serial port.
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 48a8199f7845..df8a25fabedf 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -2530,7 +2530,7 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c)
 
 /* is_double_width() is based on the wcwidth() implementation by
  * Markus Kuhn -- 2007-05-26 (Unicode 5.0)
- * Latest version: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
+ * Latest version: https://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
  */
 struct interval {
 	uint32_t first;
-- 
2.27.0