The bot from teknologi-umum

`/laodeai`: Use `eval` as one of its handlers

Only use eval if it did not throw any error

`/qr` <url>

/qr https://www.google.com/

Generate QR code (jangan pakai API)
Send QR code beserta linknya ke chat

Inline `yntkts`, `kktbsys`, `illuminati` query

See #5

`/eval`: Support serializing of BigInt values

Code:
BigInt(0)

Output:
TypeError: Do not know how to serialize a BigInt

Expected Output:
0

An error was thrown when trying to delete a message on a private chat after calling the `/snap` command.

An error was thrown when trying to delete a message on a private chat after calling the /snap command.

Stack trace:

400: Bad Request: message can't be deleted for everyone

Crashed in non-app: /app/node_modules/telegraf/lib/core/network/client.js in Telegram.callApi
runMicrotasks
Called from: node:internal/process/task_queues in processTicksAndRejections
/app/src/services/snap/snap.js in async snap at line 37:7
Called from: /app/node_modules/telegraf/lib/composer.js in async execute

Error context:

key	value
chat_type	private
text	/snap

/joke

Fetch https://jokesbapak2.herokuapp.com/v1/ then post the image

Respond to `#ask` questions if the bot is confident enough

Parse the question using NLP + ML
For training set: use past messages with #ask tag, match it with answer candidates from /laodeai
Answer candidates with high confidence will be automatically posted to group

laodeai know your meme handler

the title is self explanatory.

bug: Cannot read property 'type' of undefined

Sentry share URL: https://sentry.io/share/issue/c7e05989fcd1434abde8d9d6dea87058/ (see that link for the full stack trace of where the error came from)

Breadcrumbs:

http GET https://html.duckduckgo.com/html/?kp=1&q=apa+itu+lanlord [200] Info 09:44:09
http GET https://stackoverflow.com/questions/69413743/apa-itu-nonleaguezone-awa [301] Info 09:44:09
http GET https://stackoverflow.com/questions/69413743 [404] Info 09:44:09
exception TypeError: Cannot read property 'type' of undefined Error 09:44:09

Message text: /laodeai apa itu lanlord
The message was sent from a supergroup.

`/devread` command

Pingin bikin link ya isinya kumpulan renungan untuk kamerad TU sekalian.

Gimana menurut maintainer sekalian?

@aldy505

Inline `joke` query

References:
https://akhromieiev.com/tutorials/how-to-respond-to-inline_query-in-telegrafjs/
https://core.telegram.org/bots/inline

Add rate limit to prevent spamming

Some people are spamming /joke

create `getCommandParameters` to unify the function to get command parameters.

Please let us know by commenting on this issue if you want to take this issue. Thanks!

Task

Create a getCommandParameters inside the /utils folder to simplify and unify the function to get the parameters for a command. Currently, it scatters here:

bot/src/services/bliding-ej.js

Lines 8 to 9 in 502177e

    
           const re = new RegExp(`^/blidingej@${context.me}|/blidingej`); 
        
           const argument = context.message?.text?.replace(re, '').trim().toLowerCase() ?? '';

bot/src/services/blog.js

Lines 62 to 66 in 502177e

    
           if (text.startsWith('/devread ')) { 
        
             kueri = text.substring(9); 
        
           } else if (text.startsWith(`/devread@${context.me} `)) { 
        
             kueri = text.substring(10 + context.me.length); 
        
           }

bot/src/services/covid/index.js

Lines 14 to 15 in 502177e

    
           const re = new RegExp(`^/covid@${context.me}|/covid`); 
        
           const country = context.message?.text?.replace(re, '').trim().toLowerCase() ?? '';

bot/src/services/eval/index.js

Lines 13 to 18 in d1d915d

    
           if (text.startsWith('/eval ')) { 
        
             source = text.substring(6); 
        
           } else if (text.startsWith(`/eval@${context.me} `)) { 
        
             source = text.substring(7 + context.me.length); 
        
           } else if (text.startsWith('```') && text.endsWith('```')) { 
        
             source = text.substring(3, text.length - 4);

Resource

It is found that String.substring() is the fastest way to implement this. Try to put this JSBin code into JSBench. You'll find this result:

Tugas

Buat fungsi getCommandParameters di dalam folder /utils untuk menyederhanakan & menyatukan fungsi yang digunakan untuk ambil parameter dari command. Sekarang, fungsi-fungsi ini tersebar di:

bot/src/services/bliding-ej.js

Lines 8 to 9 in 502177e

    
           const re = new RegExp(`^/blidingej@${context.me}|/blidingej`); 
        
           const argument = context.message?.text?.replace(re, '').trim().toLowerCase() ?? '';

bot/src/services/blog.js

Lines 62 to 66 in 502177e

    
           if (text.startsWith('/devread ')) { 
        
             kueri = text.substring(9); 
        
           } else if (text.startsWith(`/devread@${context.me} `)) { 
        
             kueri = text.substring(10 + context.me.length); 
        
           }

bot/src/services/covid/index.js

Lines 14 to 15 in 502177e

    
           const re = new RegExp(`^/covid@${context.me}|/covid`); 
        
           const country = context.message?.text?.replace(re, '').trim().toLowerCase() ?? '';

bot/src/services/eval/index.js

Lines 13 to 18 in d1d915d

    
           if (text.startsWith('/eval ')) { 
        
             source = text.substring(6); 
        
           } else if (text.startsWith(`/eval@${context.me} `)) { 
        
             source = text.substring(7 + context.me.length); 
        
           } else if (text.startsWith('```') && text.endsWith('```')) { 
        
             source = text.substring(3, text.length - 4);

Bahan pendukung

Sudah di benchmark dan ternyata String.substring() adalah cara tercepat dibandingkan 2 cara lain. Coba taruh kode JSBin ini ke JSBench. Kamu bakal nemuin hasil ini:

prepare for hacktoberfest

create CONTRIBUTING.md
create pull request template - PR without issue would be rejected
put hacktoberfest tag
put a few hacktoberfest guides on readme such as:
- https://twitter.com/sudo_navendu/status/1437456596473303042
- https://www.digitalocean.com/community/tutorials/hacktoberfest-contributor-s-guide-how-to-find-and-contribute-to-open-source-projects

`/laodeai` handler: caniuse.com

use this as a test case: https://caniuse.com/css-grid

just add it into the handler lists, no need to think about how to call that handler. response might be only the supported device.

example response:

IE: partially supported
Edge: supported
Firefox: supported
Chrome: supported
Safari: supported
Opera: supported
Safari on iOS: supported
Opera Mini: not supported
Android Browser: supported
...

cc @elianiva

biar ga lupa

`/rosetta` Belajar koding lewat Bot

Ini ntar saya pikirin lagi.

Rencananya makan dari repo rosetta tapi perlu dibikin metadata khusus agar bisa memiliki bentukan data yang bisa dikonsumi oleh bot.

implement graphene for code image generation

you know what to do

`/invoice` command

kalo ada yang mau ngerjain, niat banget sih wkwkwkkw

Delete answer message

https://t.me/teknologi_umum/154947

Give `/eval` superpowers

Evaluate exchange rates: #77

/eval 0.01 * $BTCUSDT

Output:
495.568

Evaluate stock prices: #71

/eval 100 * $BUKA

Output:
94500

Unit conversions

Spec to be discussed

Google knowledge graph

/eval Person("taylor swift").height

Output:
180

bug: Reduce of empty array with no initial value

Sentry share URL: https://sentry.io/share/issue/3a8fe798985e4a3f9e38606f485185fb/ (see this link for the stack trace of where the bug came from)

Breadcrumbs:

http GET https://html.duckduckgo.com/html/?kp=1&q=c%2B%2B+bool [200] Info 17:00:56
http GET https://stackoverflow.com/questions/1921539/using-boolean-values-in-c [200] Info 17:00:56
exception TypeError: Reduce of empty array with no initial value Error 17:00:56

Message text:
/laodeai c++ bool

From a supergroup.

`/laodeai` handler: esolangs

Support this site: https://esolangs.org/

Should be similar to how we process Wikipedia.

regression: Promise timed out after 90000 milliseconds

Sentry share URL: https://sentry.io/share/issue/94706081554d48cd9d0613cb96437e7c/ (see that link for stack traces of where the bug came from)

Breadcrumbs:

http GET https://html.duckduckgo.com/html/?kp=1&q=rails+active+record+belongs_to+through [200] Info 16:43:32
http GET https://stackoverflow.com/questions/4021322/belongs-to-through-associations [200] Info 16:43:32
http POST https://teknologi-umum-graphene.fly.dev/api [[undefined]] Info 16:44:02
http POST https://teknologi-umum-graphene.fly.dev/api [[undefined]] Info 16:44:33
exception TimeoutError: Promise timed out after 90000 milliseconds Error 16:45:01

Message text: /laodeai rails active record belongs_to through
From a supergroup.

prepare for going public

karena bot ini OSS, agak serakah menurutku kalau we keep it to Teknologi Umum. udah lama kepikiran biar bot ini bisa dipake di grup lain.

tapi tentu saja, harus ada beberapa hal yang di adjust biar bot ini masih aman:

safe word list filter on /search command (#57 #55 #54 #52 #51)
disable /joke, /illuminati, /ynkts, /kktybs , /quote kalo member grup nya diatas 500 orang (#46)
set command /quiz, /blidingej exclusive ke grup teknologi umum (#46)
delete /time command (#46)
benerin konten dari /help biar lebih helpful (#61)
pin poll cuma bisa di grup teknologi umum (#46)
bikin documentation tentang cara tambahiin bot ke grup dan cara pake bot nya di repository ini (#53)
~~/kick and /ban command, along with /enable and /disable command (see #56)~~
implement statistics, jadi bisa tau bot ini ada di server mana aja (#70)

project issue ini lumayan jangka panjang, jangan di buru-buruin. kita semua punya kehidupan. mungkin kamu punya teman 2D yang harus diajak ngobrol.

`/devread typescript` returned error

Pas di test tembak ke API (https://api.pulo.dev/v1/contents?page=1&media=tulisan&query=typescript dan https://api.pulo.dev/v1/contents?page=1&media=web&query=typescript), masing-masing punya 1 result, jadi totalnya ada 3 result. Sedangkan bot ini ngirim 3 result seharusnya. Nah karena nggak ada result ke 3, jadinya null dan nggak bisa di parse via Array.map().

Masalahnya kemungkinan besar karena ini. Harus divalidasi kalo items.length < length dia bakal return items seadanya aja.

bot/src/services/blog/utils.js

Lines 21 to 29 in 5f41c6b

    
           function randomArray(items, length) { 
        
             const shuffled = shuffle(items); 
        
             const result = []; 
        
             for (let i = 0; i < length; i++) { 
        
               const index = randomNumber(0, shuffled.length); 
        
               result.push(shuffled[index]); 
        
             } 
        
             return result; 
        
           }

Callernya disini:

bot/src/services/blog/blog.js

Lines 59 to 60 in 5f41c6b

    
           const items = randomArray(data, 3); 
        
           const read = items.map(({ title, body, url }) => renderTemplate({ title, body, url })).join('\n');

cleaner safe `/search`

try to make the input and possible output as lowercase first, then test it against the data on mongodb to provide even cleaner safe search.

cc @elianiva

`/eval` parser improvements

eval objects {} without parentheses ({})
eval BigInt literal 0n

`/search <params>` search via scraping the web

scrape via https://duckduckgo.com/html/?q=url+encoded+string using cheerio

a few rules and heads up:

turn on safe search, we don't want dirty results
if parameters is empty, do nothing
if status code is not 200, just return an error
might be best to create its' own directory inside /src/services and use tempura for the templating engine

good luck, have fun

broken links on `/search` command

Ads from DuckDuckGo search was included. Along with unnecessary query string params that broke the site we're visiting.

implement loggly

trim leading spaces from zeroclick result

/laodeai should remove the leading empty space / newline

`/kick` and `/ban` command

usage:

group user (that must be an admin of that group) will reply to the message from the user that will be kicked or banned
can be enabled/disabled by a group admin with a specific command. might be /enable kick or /enable ban

rule sets:

should implement a voting system
if there is at least 15% of group admin that votes for a certain user, the user will be kicked/banned from the group
if 15% of group admin is less than 1, it will be rounded to its' higher number
if 15% of group admin is more than 1, it will be rounded to its' lower number
- so a group with 3 admins will require 1 vote from an admin
- a group with 30 admins will require 1 vote each from 4 admin

/eval

Sanitize javascript expression then return the output

`/laodeai` handler: linux man page

use this as a test case: https://www.man7.org/linux/man-pages/man0/stdio.h.0p.html

create a laodeai handler (https://github.com/teknologi-umum/bot/tree/master/src/services/laodeai/handlers) for that page. response/output might be:

stdio.h — standard buffered input/output

Some of the functionality described on this reference page
extends the ISO C standard. Applications shall define the
appropriate feature test macro (see the System Interfaces volume
of POSIX.1‐2017, Section 2.2, The Compilation Environment) to
enable the visibility of these symbols in this header.

The <stdio.h> header shall define the following data types
through typedef:

FILE          A structure containing information about a file.

fpos_t        A non-array type containing all information needed
             to specify uniquely every position within a file.

off_t         As described in <sys/types.h>.

size_t        As described in <stddef.h>.

ssize_t       As described in <sys/types.h>.

va_list       As described in <stdarg.h>.

The <stdio.h> header shall define the following macros which
shall expand to integer constant expressions:

BUFSIZ        Size of <stdio.h> buffers.  This shall expand to a
             positive value.

L_ctermid     Maximum size of character array to hold ctermid()
             output.

L_tmpnam      Maximum size of character array to hold tmpnam()
             output.

The <stdio.h> header shall define the following macros which
shall expand to integer constant expressions with distinct
values:

_IOFBF        Input/output fully buffered.

_IOLBF        Input/output line buffered.

_IONBF        Input/output unbuffered.

The <stdio.h> header shall define the following macros which
shall expand to integer constant expressions with distinct
values:

SEEK_CUR      Seek relative to current position.

SEEK_END      Seek relative to end-of-file.

SEEK_SET      Seek relative to start-of-file.

The <stdio.h> header shall define the following macros which
shall expand to integer constant expressions denoting
implementation limits:

{FILENAME_MAX}
             Maximum size in bytes of the longest pathname that
             the implementation guarantees can be opened.

{FOPEN_MAX}   Number of streams which the implementation
             guarantees can be open simultaneously. The value is
             at least eight.

{TMP_MAX}     Minimum number of unique filenames generated by
             tmpnam().  Maximum number of times an application
             can call tmpnam() reliably. The value of {TMP_MAX}
             is at least 25.

             On XSI-conformant systems, the value of {TMP_MAX}
             is at least 10000.

The <stdio.h> header shall define the following macro which shall
expand to an integer constant expression with type int and a
negative value:

EOF           End-of-file return value.

The <stdio.h> header shall define NULL as described in
<stddef.h>.

The <stdio.h> header shall define the following macro which shall
expand to a string constant:

P_tmpdir      Default directory prefix for tempnam().

The <stdio.h> header shall define the following macros which
shall expand to expressions of type ``pointer to FILE'' that
point to the FILE objects associated, respectively, with the
standard error, input, and output streams:

stderr        Standard error output stream.

stdin         Standard input stream.

stdout        Standard output stream.

The following shall be declared as functions and may also be
defined as macros. Function prototypes shall be provided.

   void     clearerr(FILE *);
   char    *ctermid(char *);
   int      dprintf(int, const char *restrict, ...)
   int      fclose(FILE *);
   FILE    *fdopen(int, const char *);
   int      feof(FILE *);
   int      ferror(FILE *);
   int      fflush(FILE *);
   int      fgetc(FILE *);
   int      fgetpos(FILE *restrict, fpos_t *restrict);
   char    *fgets(char *restrict, int, FILE *restrict);
   int      fileno(FILE *);
   void     flockfile(FILE *);
   FILE    *fmemopen(void *restrict, size_t, const char *restrict);
   FILE    *fopen(const char *restrict, const char *restrict);
   int      fprintf(FILE *restrict, const char *restrict, ...);
   int      fputc(int, FILE *);
   int      fputs(const char *restrict, FILE *restrict);
   size_t   fread(void *restrict, size_t, size_t, FILE *restrict);
   FILE    *freopen(const char *restrict, const char *restrict,
                FILE *restrict);
   int      fscanf(FILE *restrict, const char *restrict, ...);
   int      fseek(FILE *, long, int);
   int      fseeko(FILE *, off_t, int);
   int      fsetpos(FILE *, const fpos_t *);
   long     ftell(FILE *);
   off_t    ftello(FILE *);
   int      ftrylockfile(FILE *);
   void     funlockfile(FILE *);
   size_t   fwrite(const void *restrict, size_t, size_t, FILE *restrict);
   int      getc(FILE *);
   int      getchar(void);
   int      getc_unlocked(FILE *);
   int      getchar_unlocked(void);
   ssize_t  getdelim(char **restrict, size_t *restrict, int,
                FILE *restrict);
   ssize_t  getline(char **restrict, size_t *restrict, FILE *restrict);
   char    *gets(char *);
   FILE    *open_memstream(char **, size_t *);
   int      pclose(FILE *);
   void     perror(const char *);
   FILE    *popen(const char *, const char *);
   int      printf(const char *restrict, ...);
   int      putc(int, FILE *);
   int      putchar(int);
   int      putc_unlocked(int, FILE *);
   int      putchar_unlocked(int);
   int      puts(const char *);
   int      remove(const char *);
   int      rename(const char *, const char *);
   int      renameat(int, const char *, int, const char *);
   void     rewind(FILE *);
   int      scanf(const char *restrict, ...);
   void     setbuf(FILE *restrict, char *restrict);
   int      setvbuf(FILE *restrict, char *restrict, int, size_t);
   int      snprintf(char *restrict, size_t, const char *restrict, ...);
   int      sprintf(char *restrict, const char *restrict, ...);
   int      sscanf(const char *restrict, const char *restrict, ...);
   char    *tempnam(const char *, const char *);
   FILE    *tmpfile(void);
   char    *tmpnam(char *);
   int      ungetc(int, FILE *);
   int      vdprintf(int, const char *restrict, va_list);
   int      vfprintf(FILE *restrict, const char *restrict, va_list);
   int      vfscanf(FILE *restrict, const char *restrict, va_list);
   int      vprintf(const char *restrict, va_list);
   int      vscanf(const char *restrict, va_list);
   int      vsnprintf(char *restrict, size_t, const char *restrict,
                va_list);
   int      vsprintf(char *restrict, const char *restrict, va_list);
   int      vsscanf(const char *restrict, const char *restrict, va_list);

Inclusion of the <stdio.h> header may also make visible all
symbols from <stddef.h>.

The following sections are informative.

`/laodeai` - our own github copilot clone

might search from:

stackoverflow
github gist
quora
google / duckduckgo / brave search

then sends the result

cc @ronnygunawan

/covid

/covid - info covid seluruh dunia dan indonesia
/covid <nama_negara> - info covid di negara tertentu

bug: `/joke` command does not send random joke

It sends this picture again and again. Should be random.

bug: Error: can't parse entities

Link to Sentry issues:

Occurred when doing these on a public supergroup:

/laodeai the art of productive laziness
/search chrome download via blob

A bit of help:

http      GET    https://en.wikipedia.org/wiki/Laziness [200] info 05:59:21
http      POST   https://api.telegram.org/-redacted-/sendMessage [400] info 05:59:21
exception Error: 400: Bad Request: can't parse entities: Unmatched end tag at byte offset 490, expected "</i>", found "</a>" error 05:59:21

http      GET    https://html.duckduckgo.com/html/?kp=1&q=chrome+download+via+blob [200] info 08:15:39
http      POST   https://api.telegram.org/-redacted-/sendMessage [400] info 08:15:39
exception Error: 400: Bad Request: can't parse entities: Unsupported start tag "script" at byte offset 1893 error 08:15:39

If you need more information, feel free to ask it here or in the Telegram group. Good luck.

Respond to woi asu

Useful npm package for responding to the natural language: https://www.npmjs.com/package/woiasu

`/eval` bug: SequenceExpression not allowed

[2, 3, 4, 5].reduce((arr, x) => (arr.push(x), arr), [1])

unify `renderTemplate` helper function

There are multiple duplicates of renderTemplate. It should be a reusable function with templatePath parameter instead.

See:

bot/src/services/covid/utils.js

Line 19 in 2dba718

function renderTemplate(type) {

bot/src/services/blog/utils.js

Line 10 in 2dba718

function renderTemplate(data) {

bot/src/services/quote/utils.js

Line 9 in 2dba718

const renderTemplate = compile(

/carbon

Kirim di private chat:

/carbon function foo() {
  console.log("hello world")
}

Bot akan bikinin carbon

`/laodeai`: add urban dictionary handler

`/laodeai` handler: similarweb

/laodeai similarweb google.com

Show:

Global rank
Country rank (+ country & country flag)
Category rank (+ category name)
Total visits
Avg visit duration
Pages per visit
Bounce rate
Top 5 visitor's countries
Traffic sources
Top 10 competitors

limit `/snap` to 5800 characters (or ~192 LOC)

if it's over 5800 characters, it will throw 504 gateway error on the Carbonara API

captcha on user join

mungkin akan lebih baik kalo spesial hanya untuk grup teknologi umum. isi captchanya ya gausah random angka, tapi pertanyaan yang only human can answer with one word

kalo asu bahasa jawa, terjemahan indonesianya apa? "anjing"
kertas warnanya putih, awan warnanya putih, tissue warnanya putih. sapi minum apa? "air" / "air putih"
hal-hal mirip kayak gitu.

kalo ga bales dalam 3 menit, kick. kalo jawab selain jawaban bener, kick.

Hapus pesan asli setelah `/snap`

Biar ga menuh menuhin chat. Daripada reply mending gambarnya dikasih caption buat mention author kodenya.

	const re = new RegExp(`^/blidingej@${context.me}\|/blidingej`);
	const argument = context.message?.text?.replace(re, '').trim().toLowerCase() ?? '';

	if (text.startsWith('/devread ')) {
	kueri = text.substring(9);
	} else if (text.startsWith(`/devread@${context.me} `)) {
	kueri = text.substring(10 + context.me.length);
	}

	const re = new RegExp(`^/covid@${context.me}\|/covid`);
	const country = context.message?.text?.replace(re, '').trim().toLowerCase() ?? '';

	if (text.startsWith('/eval ')) {
	source = text.substring(6);
	} else if (text.startsWith(`/eval@${context.me} `)) {
	source = text.substring(7 + context.me.length);
	} else if (text.startsWith('```') && text.endsWith('```')) {
	source = text.substring(3, text.length - 4);

	function randomArray(items, length) {
	const shuffled = shuffle(items);
	const result = [];
	for (let i = 0; i < length; i++) {
	const index = randomNumber(0, shuffled.length);
	result.push(shuffled[index]);
	}
	return result;
	}

	const items = randomArray(data, 3);
	const read = items.map(({ title, body, url }) => renderTemplate({ title, body, url })).join('\n');

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