* Message-ID's secret
@ 2019-11-16 14:56 황병희
2019-11-16 15:14 ` Andreas Schwab
2019-11-16 15:16 ` Adam Sjøgren
0 siblings, 2 replies; 16+ messages in thread
From: 황병희 @ 2019-11-16 14:56 UTC (permalink / raw)
To: The Gnus
Hellow!!!
Really i'm Gnus' fan so i'm wondering Gnus' message-id have some secret.
According my view:
gnu/linux start with "87"
darwin start with "m2"
windows-nt start with "86" or "83"
I saw the source code in message.el but still i do not
understand. Somebody explain about that?
Sincerely,
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-16 14:56 Message-ID's secret 황병희
@ 2019-11-16 15:14 ` Andreas Schwab
2019-11-16 15:46 ` 황병희
2019-11-16 15:16 ` Adam Sjøgren
1 sibling, 1 reply; 16+ messages in thread
From: Andreas Schwab @ 2019-11-16 15:14 UTC (permalink / raw)
To: 황병희; +Cc: The Gnus
On Nov 16 2019, 황병희 wrote:
> According my view:
> gnu/linux start with "87"
> darwin start with "m2"
> windows-nt start with "86" or "83"
The first number is always (user-uid). "87" is 1000, "m2" is 501, "86"
is 1001, "83" is 1004.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-16 14:56 Message-ID's secret 황병희
2019-11-16 15:14 ` Andreas Schwab
@ 2019-11-16 15:16 ` Adam Sjøgren
2019-11-17 15:28 ` 황병희
1 sibling, 1 reply; 16+ messages in thread
From: Adam Sjøgren @ 2019-11-16 15:16 UTC (permalink / raw)
To: ding
황병희 writes:
> Really i'm Gnus' fan so i'm wondering Gnus' message-id have some secret.
Secret?
> According my view:
> gnu/linux start with "87"
> darwin start with "m2"
> windows-nt start with "86" or "83"
>
> I saw the source code in message.el but still i do not
> understand. Somebody explain about that?
This is the function you want to understand:
(defun message-unique-id ()
;; Don't use microseconds from (current-time), they may be unsupported.
;; Instead we use this randomly inited counter.
(setq message-unique-id-char
(% (1+ (or message-unique-id-char
(random (ash 1 20))))
;; (current-time) returns 16-bit ints,
;; and 2^16*25 just fits into 4 digits i base 36.
(* 25 25)))
(let ((tm (current-time)))
(concat
(if (or (eq system-type 'ms-dos)
;; message-number-base36 doesn't handle bigints.
(floatp (user-uid)))
(let ((user (downcase (user-login-name))))
(while (string-match "[^a-z0-9_]" user)
(aset user (match-beginning 0) ?_))
user)
(message-number-base36 (user-uid) -1))
(message-number-base36 (+ (car tm)
(ash (% message-unique-id-char 25) 16)) 4)
(message-number-base36 (+ (nth 1 tm)
(ash (/ message-unique-id-char 25) 16)) 4)
;; Append a given name, because while the generated ID is unique
;; to this newsreader, other newsreaders might otherwise generate
;; the same ID via another algorithm.
".fsf")))
One way to figure out what happens is to use the M-x edebug-defun
command on the function, and then calling it. You will then be able to
step through the function, seeing every return value along the way. Here
is the manual:
· https://www.gnu.org/software/emacs/manual/html_node/eintr/edebug.html
It is quite handy!
E.g. the "87" you see is due to your uid, from the line:
(message-number-base36 (user-uid) -1))
Best regards,
Adam
--
"I wish *I* was a tiger!" Adam Sjøgren
"A common lament." asjo@koldfront.dk
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-16 15:14 ` Andreas Schwab
@ 2019-11-16 15:46 ` 황병희
0 siblings, 0 replies; 16+ messages in thread
From: 황병희 @ 2019-11-16 15:46 UTC (permalink / raw)
To: The Gnus
Andreas Schwab <schwab@linux-m68k.org> writes:
> On Nov 16 2019, 황병희 wrote:
>
>> According my view:
>> gnu/linux start with "87"
>> darwin start with "m2"
>> windows-nt start with "86" or "83"
>
> The first number is always (user-uid). "87" is 1000, "m2" is 501, "86"
> is 1001, "83" is 1004.
Wow! It was real secret!!! FANTASTIC!!! Thank You Andreas^^^
> Andreas.
Sincerely,
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-16 15:16 ` Adam Sjøgren
@ 2019-11-17 15:28 ` 황병희
2019-11-17 16:40 ` Adam Sjøgren
0 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2019-11-17 15:28 UTC (permalink / raw)
To: ding
> (message-number-base36 (user-uid) -1))
Sorry still i do not understand what that means.
We can set other user-uid by setq?
Sincerely,
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-17 15:28 ` 황병희
@ 2019-11-17 16:40 ` Adam Sjøgren
2019-11-18 13:35 ` 황병희
` (2 more replies)
0 siblings, 3 replies; 16+ messages in thread
From: Adam Sjøgren @ 2019-11-17 16:40 UTC (permalink / raw)
To: ding
황병희 writes:
>> (message-number-base36 (user-uid) -1))
>
> Sorry still i do not understand what that means.
Let's unpack inside-out:
,----[ C-h f user-uid RET ]
| user-uid is a built-in function in ‘C source code’.
|
| (user-uid)
|
| Probably introduced at or before Emacs version 18.
| This function does not change global state, including the match data.
|
| Return the effective uid of Emacs.
| Value is a fixnum, if it’s small enough, otherwise a bignum.
`----
So we get the uid of the user running Emacs. If you're on a one-user
Linux-system, that's often 1000.
For example, on my Debian GNU/Linux machine:
$ grep $USER /etc/passwd
asjo:x:1000:1000:Adam Sjøgren,,,:/home/asjo:/bin/bash
my uid is 1000.
Now, the next function:
,----[ C-h f message-number-base36 RET ]
| message-number-base36 is a compiled Lisp function in ‘message.el’.
|
| (message-number-base36 NUM LEN)
|
| Not documented.
`----
Not documented, but we can guess what it does from the name - it takes a
number and a length as input, and converts it to base36.
Here is the entire function from message.el:
(defun message-number-base36 (num len)
(if (if (< len 0)
(<= num 0)
(= len 0))
""
(concat (message-number-base36 (/ num 36) (1- len))
(char-to-string (aref "zyxwvutsrqponmlkjihgfedcba9876543210"
(% num 36))))))
As 1000 is 27*36 + 28*1, you can see it gets translated into "87" by
this function.
So there is no secret here.
> We can set other user-uid by setq?
No, but if you run Emacs as another user, with another uid, you get
another beginning of your Message-ID.
Best regards,
Adam
--
"I wish *I* was a tiger!" Adam Sjøgren
"A common lament." asjo@koldfront.dk
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-17 16:40 ` Adam Sjøgren
@ 2019-11-18 13:35 ` 황병희
2019-11-19 4:59 ` 황병희
2020-10-20 15:36 ` Zhiwei Chen
2 siblings, 0 replies; 16+ messages in thread
From: 황병희 @ 2019-11-18 13:35 UTC (permalink / raw)
To: ding
> As 1000 is 27*36 + 28*1, you can see it gets translated into "87" by
> this function.
>
> So there is no secret here.
Wow your comment is very clean. Now i did understand, thanks Adam^^^
Sincerely,
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-17 16:40 ` Adam Sjøgren
2019-11-18 13:35 ` 황병희
@ 2019-11-19 4:59 ` 황병희
2019-11-20 4:33 ` 황병희
2020-10-20 15:36 ` Zhiwei Chen
2 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2019-11-19 4:59 UTC (permalink / raw)
To: ding
> No, but if you run Emacs as another user, with another uid, you get
> another beginning of your Message-ID.
So i did make other account (byunghee:51547) in Ubuntu 18.04.
Really thanks Adam, indeed...;;;
Sincerely,
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-19 4:59 ` 황병희
@ 2019-11-20 4:33 ` 황병희
2019-11-21 12:39 ` 황병희
0 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2019-11-20 4:33 UTC (permalink / raw)
To: ding
byunghee.hwang@daum.net (황병희) writes:
>> No, but if you run Emacs as another user, with another uid, you get
>> another beginning of your Message-ID.
>
> So i did make other account (byunghee:51547) in Ubuntu 18.04.
> Really thanks Adam, indeed...;;;
Also i did make some relative simple code [0] with Python. That works only
for me. Really i am so happy^^^
[0]
https://gitlab.com/soyeomul/Gnus/blob/a233ed2e982f997766d342456f95755f9be9b76c/thanks-mid.py
Sincerely,
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-20 4:33 ` 황병희
@ 2019-11-21 12:39 ` 황병희
2019-11-21 22:12 ` 황병희
0 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2019-11-21 12:39 UTC (permalink / raw)
To: The Gnus
> Also i did make some relative simple code [0] with Python. That works only
> for me. Really i am so happy^^^
>
> [0]
> https://gitlab.com/soyeomul/Gnus/blob/a233ed2e982f997766d342456f95755f9be9b76c/thanks-mid.py
There were many typo. So i did update the code [1] with quiet ;;;
[1]
https://gitlab.com/soyeomul/Gnus/blob/4d231b7fc34a2fc8c649f7b6dbd0753c9816504d/thanks-mid.py
Sicnerely,
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-21 12:39 ` 황병희
@ 2019-11-21 22:12 ` 황병희
2020-08-06 3:18 ` 황병희
0 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2019-11-21 22:12 UTC (permalink / raw)
To: The Gnus
soyeomul@doraji.xyz (황병희) writes:
>> Also i did make some relative simple code [0] with Python. That works only
>> for me. Really i am so happy^^^
>>
>> [0]
>> https://gitlab.com/soyeomul/Gnus/blob/a233ed2e982f997766d342456f95755f9be9b76c/thanks-mid.py
>
> There were many typo. So i did update the code [1] with quiet ;;;
>
> [1]
> https://gitlab.com/soyeomul/Gnus/blob/4d231b7fc34a2fc8c649f7b6dbd0753c9816504d/thanks-mid.py
It's real final code [2].
[2]
https://gitlab.com/soyeomul/Gnus/blob/1eb8e8c6f944a4402bac958ba9875bb2815abdfb/thanks-mid.py
Sincerely, Gnus' fan Byung-Hee from South Korea
--
^고맙습니다 _地平天成_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-21 22:12 ` 황병희
@ 2020-08-06 3:18 ` 황병희
2020-08-14 4:52 ` 황병희
0 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2020-08-06 3:18 UTC (permalink / raw)
To: The Gnus
soyeomul@doraji.xyz (황병희) writes:
[... long line snip ...]
Hi again, i don't think this is real final code. My mind sometimes runs
as Typhoon: https://gitlab.com/soyeomul/Gnus/-/blob/master/mid/tmid.py
Sincerely, Gnus fan Byung-Hee
--
^고맙습니다 _和合團結_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2020-08-06 3:18 ` 황병희
@ 2020-08-14 4:52 ` 황병희
2020-09-09 3:06 ` 황병희
0 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2020-08-14 4:52 UTC (permalink / raw)
To: The Gnus
soyeomul@doraji.xyz (황병희) writes:
> soyeomul@doraji.xyz (황병희) writes:
>
> [... long line snip ...]
>
> Hi again, i don't think this is real final code. My mind sometimes runs
> as Typhoon: ...
As Gnus fan, i did write this python code [***] for 1 year with all
respect!!! Eventually, i did portray Message-ID as <<the Universe>>.
There are require files such as __yw__.json, __yw__.py, lex__.py and the
last file *tmid.py* is exec file. Also __yw__.json file's permisson is
r--r--r-- and the path is '/__yw__/__yw__.json'. I still don't know
python's class() things so all codes run with def() things.
[***] Gnus fan's hobby code:
https://gitlab.com/soyeomul/Gnus/-/tree/0722de387630097da854a1a402aea4382520a80c/mid
Sincerely, Gnus fan Byung-Hee from South Korea
--
^고맙습니다 _白衣從軍_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2020-08-14 4:52 ` 황병희
@ 2020-09-09 3:06 ` 황병희
2020-12-26 1:43 ` Byung-Hee HWANG
0 siblings, 1 reply; 16+ messages in thread
From: 황병희 @ 2020-09-09 3:06 UTC (permalink / raw)
To: The Gnus
soyeomul@doraji.xyz (황병희) writes:
> soyeomul@doraji.xyz (황병희) writes:
>
>> soyeomul@doraji.xyz (황병희) writes:
>>
>> [... long line snip ...]
>>
>> Hi again, i don't think this is real final code. My mind sometimes runs
>> as Typhoon: ...
>
> As Gnus fan, i did write this python code [***] for 1 year with all
> respect!!! Eventually, i did portray Message-ID as <<the Universe>>.
And then, i did clean up the codes [^^^] by moving to one repository
[__yw__] so now i am very happy!!! Also my Gnus is *now* Super Sports
Car, what a wonderful world^^^
[^^^]: https://gitlab.com/soyeomul/__yw__
Sincerely, Gnus fan Byung-Hee
--
^고맙습니다 _白衣從軍_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2019-11-17 16:40 ` Adam Sjøgren
2019-11-18 13:35 ` 황병희
2019-11-19 4:59 ` 황병희
@ 2020-10-20 15:36 ` Zhiwei Chen
2 siblings, 0 replies; 16+ messages in thread
From: Zhiwei Chen @ 2020-10-20 15:36 UTC (permalink / raw)
To: Adam Sjøgren; +Cc: ding
Adam Sjøgren <asjo@koldfront.dk> writes:
> ,----[ C-h f user-uid RET ]
> | user-uid is a built-in function in ‘C source code’.
> |
> | (user-uid)
> |
> | Probably introduced at or before Emacs version 18.
> | This function does not change global state, including the match data.
> |
> | Return the effective uid of Emacs.
> | Value is a fixnum, if it’s small enough, otherwise a bignum.
> `----
Offtopic, how to generate function documentation in this style in Gnus?
It looks so fancy.
--
Zhiwei Chen
^ permalink raw reply [flat|nested] 16+ messages in thread
* Re: Message-ID's secret
2020-09-09 3:06 ` 황병희
@ 2020-12-26 1:43 ` Byung-Hee HWANG
0 siblings, 0 replies; 16+ messages in thread
From: Byung-Hee HWANG @ 2020-12-26 1:43 UTC (permalink / raw)
To: The Gnus
> [^^^]: https://gitlab.com/soyeomul/__yw__
Last night, i did add BTS/ARMY into my Python codes. In Particular,
BTS/ARMY will runs *always* with _uuid(). And _really_ my spam mail will
be the last at here, thanks^^^
What a beautiful World!!!
Sincerely, Gnus fan Byung-Hee
--
^고맙습니다 _和合團結_ 감사합니다_^))//
^ permalink raw reply [flat|nested] 16+ messages in thread
end of thread, other threads:[~2020-12-26 1:44 UTC | newest]
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2019-11-16 14:56 Message-ID's secret 황병희
2019-11-16 15:14 ` Andreas Schwab
2019-11-16 15:46 ` 황병희
2019-11-16 15:16 ` Adam Sjøgren
2019-11-17 15:28 ` 황병희
2019-11-17 16:40 ` Adam Sjøgren
2019-11-18 13:35 ` 황병희
2019-11-19 4:59 ` 황병희
2019-11-20 4:33 ` 황병희
2019-11-21 12:39 ` 황병희
2019-11-21 22:12 ` 황병희
2020-08-06 3:18 ` 황병희
2020-08-14 4:52 ` 황병희
2020-09-09 3:06 ` 황병희
2020-12-26 1:43 ` Byung-Hee HWANG
2020-10-20 15:36 ` Zhiwei Chen
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