nim-censor-bot/src/nim_censor_bot.nim
baalajimaestro dc3edf3105
Pretty print everything
Signed-off-by: baalajimaestro <me@baalajimaestro.me>
2024-01-10 21:29:32 +05:30

349 lines
13 KiB
Nim

#
# Copyright © 2022-23 Maestro Creativescape
#
# SPDX-License-Identifier: AGPL-3.0-or-later
#
import telebot
import std/[asyncdispatch,
logging,
strutils,
random,
os,
tables,
times,
sequtils,
json]
import norm/[model, sqlite, pool]
# Logging Level
var L = newConsoleLogger(levelThreshold = lvlError,
fmtStr = "$levelname, [$time] ")
addHandler(L)
# Custom Types Defined to handle tables on norm
type
CensoredData* = ref object of Model
ftype*: string
fhash*: string
fileid*: string
time*: float
caption*: string
type
BannedUsers* = ref object of Model
userid*: int64
bantime*: float
bantype*: string
# Hashmaps for RateLimiting and working around telegram's album issue
var RateLimiter = initTable[int64, seq[float]]()
var GroupMedia = initTable[int, string]()
# Bot Admins, is comma-separated variable
let AdminID = getEnv("ADMIN_ID").split(",")
let dbConn* = getDb()
var connPool = newPool[DbConn](100)
# Functions to assist adding/deleting entries from tables
func NewCensoredData*(ftype = ""; fhash = ""; fileid = ""; time = 0.0; caption = ""):
CensoredData = CensoredData(ftype: ftype, fhash: fhash, fileid: fileid,
time: time, caption: caption)
func NewBannedUsers*(userid = int64(0); bantime = 0.0; bantype = ""):
BannedUsers = BannedUsers(userid: userid, bantime: bantime, bantype: bantype)
# Create tables if they dont exist
withDb(connPool):
db.createTables(NewCensoredData())
db.createTables(NewBannedUsers())
# Ratelimits a user if there is more than 30 timestamps within 60 secs.
# Resets their ratelimit counter if 60s has passed since first timestamp
proc ManageRateLimit(): void =
for i in RateLimiter.keys().toSeq():
if RateLimiter[i][^1] - RateLimiter[i][0] >= 60:
RateLimiter.del(i)
elif len(RateLimiter[i]) >= 30:
var BannedUser = NewBannedUsers(i, epochTime(), "auto")
RateLimiter.del(i)
withDb(connPool):
db.insert(BannedUser)
withDb(connPool):
if db.exists(BannedUsers, "bantype = ? and ? - bantime >= 1800", "auto",
epochTime()):
var TempData = @[NewBannedUsers()]
db.select(TempData, "bantype = ? and ? - bantime >= 1800", "auto",
epochTime())
for i in TempData:
var e = i
db.delete(e)
# Cleanup old data to save space
# Deletes old data after 6 months of entry
proc OldDataCleanup(): void =
withDb(connPool):
if db.exists(CensoredData, "? - time >= 15780000", epochTime()):
var TempData = @[NewCensoredData()]
db.select(TempData, "? - time >= 15780000", epochTime())
for i in TempData:
var e = i
db.delete(e)
# Generates a 6-character magic that will be used to identify the file
proc generate_hash(): string =
result = newString(7)
const charset = {'a' .. 'z', 'A' .. 'Z', '0' .. '9'}
for i in 0..6:
result[i] = sample(charset)
return result
# Start command handler
proc startHandler(b: Telebot; c: Command): Future[bool] {.gcsafe, async.} =
let param = c.params
ManageRateLimit()
withDb(connPool):
if not db.exists(BannedUsers, "userid = ?", c.message.chat.id):
# Update rate-limit counter
if not AdminID.contains($c.message.chat.id):
if RateLimiter.contains(c.message.chat.id):
RateLimiter[c.message.chat.id].insert(epochTime())
else:
RateLimiter[c.message.chat.id] = @[epochTime()]
if param == "":
discard await b.sendMessage(c.message.chat.id,
"Hey, To create a censored post, you can share any album, video, photo, gif, sticker, etc. " &
"The response of the bot can be used to share the media with other chats.")
else:
if not db.exists(CensoredData, "fhash = ?", param):
discard await b.sendMessage(c.message.chat.id,
"Media does not exist on database, ask the sender to censor this again!")
else:
var TempData = @[NewCensoredData()]
db.select(TempData, "fhash = ?", param)
if len(TempData) > 1:
var inputmedia = newSeq[InputMediaPhoto]()
for i in TempData:
if i.caption != "":
inputmedia.insert(InputMediaPhoto(kind: i.ftype,
media: i.fileid, caption: i.caption))
else:
inputmedia.insert(InputMediaPhoto(kind: i.ftype,
media: i.fileid))
discard await b.sendMediaGroup($c.message.chat.id,
media = inputmedia)
else:
if TempData[0].ftype == "photo":
discard await b.sendPhoto(chatId = c.message.chat.id,
photo = TempData[0].fileid, caption = TempData[0].caption)
elif TempData[0].ftype == "document":
discard await b.sendDocument(c.message.chat.id, TempData[
0].fileid, caption = TempData[0].caption)
elif TempData[0].ftype == "video":
discard await b.sendVideo(c.message.chat.id, TempData[0].fileid,
caption = TempData[0].caption)
elif TempData[0].ftype == "videoNote":
discard await b.sendVideoNote(c.message.chat.id, TempData[0].fileid)
elif TempData[0].ftype == "animation":
discard await b.sendAnimation(c.message.chat.id, TempData[
0].fileid, caption = TempData[0].caption)
elif TempData[0].ftype == "sticker":
discard await b.sendSticker(c.message.chat.id, TempData[0].fileid)
# Give them source url
proc sourceHandler(b: Telebot; c: Command): Future[bool] {.gcsafe, async.} =
ManageRateLimit()
withDb(connPool):
if not db.exists(BannedUsers, "userid = ?", c.message.chat.id):
# Update rate-limit counter
if not AdminID.contains($c.message.chat.id):
if RateLimiter.contains(c.message.chat.id):
RateLimiter[c.message.chat.id].insert(epochTime())
else:
RateLimiter[c.message.chat.id] = @[epochTime()]
discard await b.sendMessage(c.message.chat.id,
"Hey, this bot is open-source and licensed under AGPL-v3! " &
"\n\nYou are welcome to selfhost your own instance of this bot" &
"\n\nThe source code is [here](https://git.baalajimaestro.me/baalajimaestro/nim-censor-bot)",
parseMode = "Markdown",
linkPreviewOptions = LinkPreviewOptions(isDisabled: true))
# UnBan Handler
proc unbanHandler(b: Telebot; c: Command): Future[bool] {.gcsafe, async.} =
if $c.message.chat.id in AdminID:
let user = c.params
withDb(connPool):
if db.exists(BannedUsers, "userid = ?", int64(parseInt(user))):
var TempData = @[NewBannedUsers()]
db.select(TempData, "userid = ?", int64(parseInt(user)))
for i in TempData:
var e = i
db.delete(e)
discard await b.sendMessage(c.message.chat.id, "Unbanned!")
# ban Handler
proc banHandler(b: Telebot; c: Command): Future[bool] {.gcsafe, async.} =
if $c.message.chat.id in AdminID:
let user = c.params
var BannedUser = NewBannedUsers(int64(parseInt(user)), epochTime(), "permanent")
withDb(connPool):
db.insert(BannedUser)
discard await b.sendMessage(c.message.chat.id, "Banned!")
# Inline share handler
proc inlineHandler(b: Telebot; u: InlineQuery): Future[bool]{.gcsafe, async.} =
var TempData = @[NewCensoredData()]
var ftype = ""
var res: InlineQueryResultArticle
var results: seq[InlineQueryResultArticle]
res.kind = "article"
res.id = "1"
if u.query != "":
withDb(connPool):
if not db.exists(CensoredData, "fhash = ?", u.query):
res.title = "Media Not Found"
res.inputMessageContent = InputTextMessageContent(
"Media does not exist on database, ask the sender to censor this again!")
else:
db.select(TempData, "fhash = ?", u.query)
if len(TempData) > 1:
ftype = "Album"
elif len(TempData) == 1:
ftype = TempData[0].ftype
res.title = "NSFW " & capitalizeAscii(ftype)
res.inputMessageContent = InputMessageContent(kind: TextMessage,
messageText: "*NSFW " &
capitalizeAscii(ftype) &
"*\n\n[Tap to View](https://t.me/" &
b.username & "?start=" &
u.query &
")",
parseMode: "Markdown",
linkPreviewOptions: LinkPreviewOptions(isDisabled: true))
else:
res.title = "Waiting for File Hash"
res.inputMessageContent = InputTextMessageContent(
"Provide the filehash on inline query")
results.add(res)
discard await b.answerInlineQuery(u.id, results)
# Main update handler
proc updateHandler(b: Telebot; u: Update): Future[bool] {.async, gcsafe.} =
if not u.message.isNil:
let response = u.message
# Refresh rate-limits
ManageRateLimit()
withDb(connPool):
# Dont bother about rate-limited/banned users
if not db.exists(BannedUsers, "userid = ?", response.chat.id):
# Update rate-limit counter
if not AdminID.contains($response.chat.id):
if RateLimiter.contains(response.chat.id):
RateLimiter[response.chat.id].insert(epochTime())
else:
RateLimiter[response.chat.id] = @[epochTime()]
if response.text.len == 0:
var fileid = ""
var ftype = ""
var fcaption = ""
if response.caption.len > 0:
fcaption = response.caption
if response.document != nil:
fileid = response.document.fileId
ftype = "document"
elif response.video != nil:
fileid = response.video.fileId
ftype = "video"
elif response.videoNote != nil:
fileid = response.videoNote.fileId
ftype = "videoNote"
elif response.animation != nil:
fileid = response.animation.fileId
ftype = "animation"
elif response.photo.len > 0:
fileid = response.photo[0].fileId
ftype = "photo"
elif response.sticker != nil:
fileid = response.sticker.fileId
ftype = "sticker"
# Workaround for groupmedia using hashtables
# Telegram is sending multiple updates, instead of 1, so just workaround it
if response.mediaGroupId.len > 0:
if parseInt(response.mediaGroupId) notin GroupMedia.keys().toSeq():
let filehash = generate_hash()
GroupMedia[parseInt(response.mediaGroupId)] = filehash
var CensoredRow = NewCensoredData(ftype, filehash, fileid,
epochTime(), fcaption)
withDb(connPool):
db.insert(CensoredRow)
var replybutton = InlineKeyboardButton(text: "Share",
switchInlineQuery: filehash)
let replymark = newInlineKeyboardMarkup(@[replybutton])
discard await b.sendMessage(response.chat.id,
"*NSFW " &
"Album" &
"*\n\n[Tap to View](https://t.me/" &
b.username &
"?start=" &
filehash &
")",
replyMarkup = replymark,
linkPreviewOptions = LinkPreviewOptions(isDisabled: true),
parseMode = "Markdown")
else:
let filehash = GroupMedia[parseInt(response.mediaGroupId)]
var CensoredRow = NewCensoredData(ftype, filehash, fileid,
epochTime(), fcaption)
withDb(connPool):
db.insert(CensoredRow)
else:
let filehash = generate_hash()
var CensoredRow = NewCensoredData(ftype, filehash, fileid,
epochTime(), fcaption)
withDb(connPool):
db.insert(CensoredRow)
var replybutton = InlineKeyboardButton(text: "Share",
switchInlineQuery: filehash)
let replymark = newInlineKeyboardMarkup(@[replybutton])
discard await b.sendMessage(response.chat.id,
"*NSFW " &
capitalizeAscii(ftype) &
"*\n\n[Tap to View](https://t.me/" &
b.username &
"?start=" &
filehash &
")",
replyMarkup = replymark,
linkPreviewOptions = LinkPreviewOptions(isDisabled: true),
parseMode = "Markdown")
OldDataCleanup()
when isMainModule:
let bot = newTeleBot(getEnv("TELEGRAM_TOKEN"))
echo "*********************"
echo "CensorBot is running!"
echo "*********************"
var commands = @[
BotCommand(command: "start", description: "Start the bot!"),
BotCommand(command: "source", description: "Info about bot source")
]
discard waitFor bot.setMyCommands(commands)
bot.onUpdate(updateHandler)
bot.onCommand("start", startHandler)
bot.onCommand("ban", banHandler)
bot.onCommand("unban", unbanHandler)
bot.onCommand("source", sourceHandler)
bot.onInlineQuery(inlineHandler)
if getEnv("HOOK_DOMAIN") != "":
bot.startWebhook(getEnv("HOOK_SECRET"), getEnv("HOOK_DOMAIN") & "/" &
getEnv("HOOK_SECRET"))
else:
bot.poll(timeout = 300)