Initial commit

.gitignore

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+**/*.pyc
+**/__pycache__
+**/__pycache__/**
+virtual_env
+virtual_env/**
+.vscode
+.vscode/**
+.idea
+.idea/**
+.atom
+.atom/**
+/telegrambot.txt
+/db.sqlite3

.gitlab-ci.yml

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+deploy:
+  stage: deploy
+  script:
+    make deploy

Makefile

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+help:
+	@echo -n
+
+deploy:
+	-sudo systemctl stop telegram-bot-use-proper-grammar.service
+	-sudo rm /etc/systemd/system/telegram-bot-use-proper-grammar.service
+	-sudo install telegram-bot-use-proper-grammar.service /etc/systemd/system
+	-sudo mkdir -p /var/www/telegram-bot-use-proper-grammar
+	-sudo rm -rf /var/www/telegram-bot-use-proper-grammar/propergrammar
+	-sudo rm -rf /var/www/telegram-bot-use-proper-grammar/Makefile
+	-sudo rm -rf /var/www/telegram-bot-use-proper-grammar/manage.py
+	-sudo cp -R propergrammar /var/www/telegram-bot-use-proper-grammar/propergrammar
+	-sudo install manage.py /var/www/telegram-bot-use-proper-grammar
+	-sudo install Makefile /var/www/telegram-bot-use-proper-grammar
+	-sudo install requirements.frozen.txt /var/www/telegram-bot-use-proper-grammar
+	sudo make depends -C /var/www/telegram-bot-use-proper-grammar
+	sudo make migrate -C /var/www/telegram-bot-use-proper-grammar
+	cd /var/www/telegram-bot-use-proper-grammar; sudo chown http:http -R .
+	sudo systemctl daemon-reload
+	sudo systemctl enable telegram-bot-use-proper-grammar.service
+	sudo systemctl restart telegram-bot-use-proper-grammar.service
+
+devmigrate: virtual_env
+	. virtual_env/bin/activate; python manage.py makemigrations
+	. virtual_env/bin/activate; python manage.py migrate
+
+migrate: virtual_env
+	. virtual_env/bin/activate; python manage.py migrate
+
+serve: virtual_env
+	. virtual_env/bin/activate; python -m propergrammar
+
+depends: virtual_env
+	. virtual_env/bin/activate; pip install -U -r requirements.frozen.txt
+
+depends-latest: virtual_env
+	. virtual_env/bin/activate; pip install -U -r requirements.txt
+
+freeze: virtual_env
+	. virtual_env/bin/activate; python -m pip freeze > requirements.frozen.txt
+
+virtual_env:
+	python3 -m virtualenv virtual_env
+	make depends

README.md

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+Telegram - Use Proper Grammar, Please!
+===========================
+
+Sometimes we need a bot that repeats a set of messages over and over... even more than the frequency you're willing to copy-paste.
+
+Because of those people who need to be reminded more than you're able to remind them, this bot exists.
+
+## Running locally
+
+- Create a bot
+- Create the file `telegrambot.txt` containing the API key
+- Run `make serve` on a terminal
+
+## Deploying
+
+- Copy `telegrambot.txt` to `/var/www/telegram-bot-use-proper-grammar`
+- Run `make deploy`

manage.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+import sys
+
+from propergrammar.djangosetup import setup_django
+
+if __name__ == '__main__':
+    setup_django()
+    from django.core.management import execute_from_command_line
+    execute_from_command_line(sys.argv)

propergrammar/__init__.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+from pathlib import Path
+from .telebot import start_bot
+
+
+def main():
+    start_bot(Path('telegrambot.txt').read_text().strip())

propergrammar/__main__.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+from . import main
+from .djangosetup import setup_django
+
+if __name__ == "__main__":
+    setup_django()
+    main()

propergrammar/djangosetup.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+import os, sys
+
+def setup_django():
+    # Setup environ
+    sys.path.append(os.getcwd())
+    os.environ.setdefault("DJANGO_SETTINGS_MODULE", "propergrammar.settings")
+
+    # Setup django
+    import django
+    django.setup()

propergrammar/migrations/0001_initial.py

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+# Generated by Django 3.0.3 on 2020-02-15 23:15
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Group',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('chat_id', models.IntegerField(default=0, unique=True)),
+                ('name', models.CharField(default='', max_length=255)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='GroupDictionaryEntry',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('word', models.TextField(default='')),
+                ('group', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='words', to='propergrammar.Group')),
+            ],
+        ),
+        migrations.AddIndex(
+            model_name='group',
+            index=models.Index(fields=['id'], name='propergramm_id_f9b41c_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='group',
+            index=models.Index(fields=['chat_id'], name='propergramm_chat_id_c6909f_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='groupdictionaryentry',
+            index=models.Index(fields=['id'], name='propergramm_id_1fdb42_idx'),
+        ),
+        migrations.AddIndex(
+            model_name='groupdictionaryentry',
+            index=models.Index(fields=['group_id'], name='propergramm_group_i_fd6c71_idx'),
+        ),
+    ]

propergrammar/models.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+from django.db import models
+
+
+VALID_LANGUAGES_LST = 'en,es,de,fr,pt'.split(',')
+VALID_LANGUAGES = tuple(zip(
+    *(VALID_LANGUAGES_LST, 'English,Español,Deutsch,Français,Português'.split(','))
+))
+VALID_LANGUAGES_DICT = dict(VALID_LANGUAGES)
+LANGUAGES_SCOLDING = '''
+I guessed you were writing in "{0}" and I have the following suggestions:
+Supuse que estabas escribiendo en "{0}" y tengo las siguientes sugerencias:
+Ich vermute, Sie haben auf "{0}" geschrieben und ich habe die folgenden Vorschläge:
+J'ai deviné que vous écriviez en "{0}" et j'ai les suggestions suivantes:
+Imaginei que você estivesse escrevendo em "{0}" e tenho as seguintes sugestões:'''.splitlines()[1:]
+LANGUAGES_SCOLDING_DICT = dict(tuple(zip(
+    *(VALID_LANGUAGES_LST, LANGUAGES_SCOLDING)
+)))
+
+
+class Group(models.Model):
+    chat_id = models.IntegerField(
+        default=0,
+        blank=False,
+        null=False,
+        unique=True
+    )
+    name = models.CharField(
+        default="",
+        blank=False,
+        null=False,
+        max_length=255
+    )
+
+    def __str__(self):
+        return f'{self.pk} - {self.name}'
+
+    class Meta:
+        indexes = [
+            models.Index(fields=['id']),
+            models.Index(fields=['chat_id']),
+        ]
+
+
+class GroupDictionaryEntry(models.Model):
+    group = models.ForeignKey(
+        Group,
+        on_delete=models.CASCADE,
+        related_name='words'
+    )
+    word = models.TextField(
+        default="",
+        blank=False,
+        null=False
+    )
+
+    def __str__(self):
+        return f'{self.pk} - {self.word}'
+
+    class Meta:
+        indexes = [
+            models.Index(fields=['id']),
+            models.Index(fields=['group_id']),
+        ]

propergrammar/mwt.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+import time
+
+
+class MWT(object):
+    """Memoize With Timeout"""
+    _caches = {}
+    _timeouts = {}
+
+    def __init__(self, timeout=2):
+        self.timeout = timeout
+
+    def collect(self):
+        """Clear cache of results which have timed out"""
+        for func in self._caches:
+            cache = {}
+            for key in self._caches[func]:
+                if (time.time() - self._caches[func][key][1]) < self._timeouts[func]:
+                    cache[key] = self._caches[func][key]
+            self._caches[func] = cache
+
+    def __call__(self, f):
+        self.cache = self._caches[f] = {}
+        self._timeouts[f] = self.timeout
+
+        def func(*args, **kwargs):
+            kw = sorted(kwargs.items())
+            key = (args, tuple(kw))
+            try:
+                v = self.cache[key]
+                # print("cache")
+                if (time.time() - v[1]) > self.timeout:
+                    raise KeyError
+            except KeyError:
+                # print("new")
+                v = self.cache[key] = f(*args, **kwargs), time.time()
+            return v[0]
+        func.func_name = f.__name__
+
+        return func

propergrammar/settings.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+SECRET_KEY = "plz, stop complaining"
+
+INSTALLED_APPS = [
+    'propergrammar'
+]
+
+DATABASES = {
+    'default': {
+        'ENGINE': 'django.db.backends.sqlite3',
+        'NAME': 'db.sqlite3',
+    }
+}
+
+USE_TZ = True
+
+TIME_ZONE = "UTC"

propergrammar/telebot.py

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+#!/usr/bin/env python3
+# -*- encoding: utf-8 -*-
+
+from .mwt import MWT
+import sys
+import telegram
+import telegram.ext
+from telegram.ext import Updater
+from telegram.ext import CommandHandler
+from telegram.ext import MessageHandler
+from telegram.ext.filters import Filters
+from spellchecker import SpellChecker
+import logging
+from django.utils import timezone
+import random
+import datetime
+from io import BytesIO, StringIO
+from telegram.constants import MAX_MESSAGE_LENGTH
+
+CHECKERS = dict()
+Group: 'propergrammar.models.Group' = None
+GroupDictionaryEntry: 'propergrammar.models.GroupDictionaryEntry' = None
+logger = None
+models = None
+
+
+@MWT(timeout=60*5)
+def get_admin_ids(bot, chat_id):
+    """Returns a list of admin IDs for a given chat. Results are cached for 1 hour."""
+    return [admin.user.id for admin in bot.get_chat_administrators(chat_id)]
+
+
+def start(update: telegram.Update, context: telegram.ext.CallbackContext):
+    chattype = update.message.chat.type
+    if chattype in ['private']:
+        context.bot.send_message(
+            chat_id=update.message.chat_id,
+            text="Invite me to your server!"
+        )
+    elif chattype in ['group', 'supergroup']:
+        admins = get_admin_ids(context.bot, update.message.chat_id)
+        if update.message.from_user.id in admins:
+            is_group_admin(update, context)
+            send_help_message(update, context)
+
+
+def send_help_message(update: telegram.Update, context: telegram.ext.CallbackContext):
+    context.bot.send_message(
+        chat_id=update.message.chat_id,
+        text='''Try using my services with the commands:
+/add_group_dictionary
+/show_group_dictionary
+/remove_group_dictionary
+/export_group_dictionary
+(there is a clear_group_dictionary, but you'll have to type it yourself)'''
+    )
+
+
+def split_long_messages(message: str) -> list:
+    if len(message) <= MAX_MESSAGE_LENGTH:
+        return [message]
+    else:
+        lst = []
+        lines = message.splitlines()
+        size = 0
+        buffer = ''
+        for line in lines:
+            if len(buffer) + len(line) + 1 <= MAX_MESSAGE_LENGTH:
+                buffer += line + '\n'
+            else:
+                lst.append(buffer)
+                buffer = ''
+                if len(line) + 1 <= MAX_MESSAGE_LENGTH:
+                    buffer += line + '\n'
+                else:
+                    remainder = line
+                    while len(remainder) + 1 >= MAX_MESSAGE_LENGTH:
+                        humongous, remainder = (
+                            remainder[:MAX_MESSAGE_LENGTH], remainder[MAX_MESSAGE_LENGTH:])
+                        lst.append(humongous)
+                    lst.append(remainder)
+                    buffer = ''
+        if len(buffer) > 0:
+            lst.append(buffer)
+        return lst
+
+
+def get_group(chat):
+    group = Group.objects.filter(chat_id=chat.id).first()
+    title = chat.title
+    if title is None:
+        title = f'{chat.first_name} {chat.last_name}'
+    if group is None:
+        group = Group(chat_id=chat.id, name=title)
+        group.save()
+    elif group.name != title:
+        group.name = title
+        group.save()
+    return group
+
+
+def cmd_null(update: telegram.Update, context: telegram.ext.CallbackContext):
+    return
+
+
+def remove_links(text, entities):
+    if isinstance(text, str):
+        text = list(text)
+        for entity in entities:
+            if entity.type in ['url', 'email', 'bot_command']:
+                for i in range(entity.offset, entity.offset+entity.length):
+                    text[i] = ''
+        return ''.join(text)
+    else:
+        return text
+
+
+def handle_message(update: telegram.Update, context: telegram.ext.CallbackContext):
+    chattype = update.message.chat.type
+    if chattype in ['group', 'supergroup', 'private']:
+        to_check = ' '.join(
+            list(filter(lambda x: x is not None, [
+                remove_links(update.message.text, update.message.entities),
+                remove_links(update.message.caption,
+                             update.message.caption_entities)
+            ]))
+        ).strip()
+        if len(to_check) > 0:
+            group = get_group(update.message.chat)
+            languages = models.VALID_LANGUAGES_LST
+            ignored = [x.word for x in group.words.all()]
+            language_rank = list()
+            for language in languages:
+                chk = CHECKERS[language]
+                words = chk.split_words(to_check)
+                if len(words) > 0:
+                    language_rank.append(
+                        (len(chk.known(words))/len(words), language)
+                    )
+            language_rank.sort()
+            language_rank.reverse()
+            language_confidence, language_main = language_rank[0]
+            if language_confidence == 0:
+                language_main = 'en'
+            checker_main = CHECKERS[language_main]
+            words = checker_main.split_words(to_check)
+            unknown = checker_main.unknown(words)
+            for lng in languages:
+                unknown = CHECKERS[lng].unknown(unknown)
+            unknown = set(unknown)
+            for unknown_word in list(unknown):
+                for ignored_word in ignored:
+                    if unknown_word.lower() == ignored_word.lower():
+                        unknown.difference_update(unknown_word)
+            unknown = sorted(list(unknown))
+            formatted_suggestions = []
+            for typo in unknown:
+                typo_fixed = checker_main.correction(typo)
+                typo_fixes = checker_main.candidates(typo)
+                typo_fixes -= {typo_fixed}
+                formatted_suggestions.append(
+                    f'{typo} → {typo_fixed}; {", ".join(typo_fixes)}'
+                )
+            if len(unknown) > 0:
+                lecture = models.LANGUAGES_SCOLDING_DICT[language_main].format(
+                    models.VALID_LANGUAGES_DICT[language_main]
+                )+'\n'+"\n".join(formatted_suggestions)
+                for message_segments in split_long_messages(lecture):
+                    context.bot.send_message(
+                        chat_id=update.message.chat_id,
+                        reply_to_message_id=update.message.message_id,
+                        text=message_segments
+                    )
+
+
+def cmd_agd(update: telegram.Update, context: telegram.ext.CallbackContext):
+    chattype = update.message.chat.type
+    if chattype in ['group', 'supergroup']:
+        admins = get_admin_ids(context.bot, update.message.chat_id)
+        if update.message.from_user.id in admins:
+            group = get_group(update.message.chat)
+            wordlist = sorted(
+                list(set([w.word.lower() for w in group.words.all()])))
+            new_words = ' '.join(remove_links(
+                update.message.text, update.message.entities).splitlines()).split()
+            status = f'Adding {len(new_words)} new words...\n'
+            for nword in new_words:
+                status += f'{nword}... '
+                if nword.lower() in wordlist:
+                    status += 'already on list\n'
+                else:
+                    GroupDictionaryEntry(group=group, word=nword).save()
+                    wordlist.append(nword.lower())
+                    status += 'OK\n'
+            status += f'New word count: {len(group.words.all())}'
+            for segment in split_long_messages(status):
+                context.bot.send_message(
+                    chat_id=update.message.chat_id,
+                    reply_to_message_id=update.message.message_id,
+                    text=segment
+                )
+
+
+def cmd_rgd(update: telegram.Update, context: telegram.ext.CallbackContext):
+    chattype = update.message.chat.type
+    if chattype in ['group', 'supergroup']:
+        admins = get_admin_ids(context.bot, update.message.chat_id)
+        if update.message.from_user.id in admins:
+            group = get_group(update.message.chat)
+            old_words = ' '.join(remove_links(
+                update.message.text, update.message.entities).splitlines()).split()
+            status = f'Removing {len(old_words)} words...\n'
+            for oword in old_words:
+                status += f'{oword}... '
+                entry = group.words.all().filter(word__iexact=oword).first()
+                if entry is None:
+                    status += 'not found\n'
+                else:
+                    entry.delete()
+                    status += 'REMOVED\n'
+            status += f'New word count: {len(group.words.all())}'
+            for segment in split_long_messages(status):
+                context.bot.send_message(
+                    chat_id=update.message.chat_id,
+                    reply_to_message_id=update.message.message_id,
+                    text=segment
+                )
+
+
+def cmd_sgd(update: telegram.Update, context: telegram.ext.CallbackContext):
+    chattype = update.message.chat.type
+    if chattype in ['group', 'supergroup']:
+        admins = get_admin_ids(context.bot, update.message.chat_id)
+        if update.message.from_user.id in admins:
+            group = get_group(update.message.chat)
+            wordlist = sorted([w.word for w in group.words.all()])
+            wordlist_str = '\n'.join(wordlist)
+            msg = 'Here are all your %d entries you have on your group\'s dictionary:\n%s' % (
+                len(wordlist), wordlist_str
+            )
+            for fragment in split_long_messages(msg):
+                context.bot.send_message(
+                    chat_id=update.message.chat_id,
+                    reply_to_message_id=update.message.message_id,
+                    text=fragment
+                )
+
+
+def cmd_egd(update: telegram.Update, context: telegram.ext.CallbackContext):
+    chattype = update.message.chat.type
+    if chattype in ['group', 'supergroup']:
+        admins = get_admin_ids(context.bot, update.message.chat_id)
+        if update.message.from_user.id in admins:
+            group = get_group(update.message.chat)
+            wordlist = sorted([w.word for w in group.words.all()])
+            wordlist_str = '\n'.join(wordlist)
+            wordlist_str += '\n'
+            bio = BytesIO(wordlist_str.encode('UTF-8'))
+            bio.name = f'DictExport_{update.message.chat_id}_{str(update.message.date).replace(" ", "_").replace(":", "-")}.txt'
+            context.bot.send_document(
+                chat_id=update.message.chat_id,
+                reply_to_message_id=update.message.message_id,
+                document=bio
+            )
+
+
+def cmd_cgd(update: telegram.Update, context: telegram.ext.CallbackContext):
+    chattype = update.message.chat.type
+    if chattype in ['group', 'supergroup']:
+        admins = get_admin_ids(context.bot, update.message.chat_id)
+        if update.message.from_user.id in admins:
+            group = get_group(update.message.chat)
+            group.words.all().delete()
+            context.bot.send_message(
+                chat_id=update.message.chat_id,
+                reply_to_message_id=update.message.message_id,
+                text='Erased all entries from local dictionary.'
+            )
+
+
+def start_bot(token):
+    global Group
+    global GroupDictionaryEntry
+    global logger
+    global CHECKERS
+    global models
+    from .models import Group
+    from .models import GroupDictionaryEntry
+    from . import models
+    for lng in models.VALID_LANGUAGES_LST:
+        CHECKERS[lng] = SpellChecker(lng)
+    logging.basicConfig(
+        level=logging.DEBUG,
+        format='%(asctime)s - %(name)s - %(levelname)s - %(message)s'
+    )
+    logger = logging.getLogger()
+    logger.setLevel(logging.INFO)
+    u = Updater(token, use_context=True)
+    d = u.dispatcher
+    d.add_handler(CommandHandler('start', start))
+    d.add_handler(CommandHandler('add_group_dictionary', cmd_agd))
+    d.add_handler(CommandHandler('remove_group_dictionary', cmd_rgd))
+    d.add_handler(CommandHandler('show_group_dictionary', cmd_sgd))
+    d.add_handler(CommandHandler('export_group_dictionary', cmd_egd))
+    d.add_handler(CommandHandler('clear_group_dictionary', cmd_cgd))
+    d.add_handler(CommandHandler('help', send_help_message))
+    d.add_handler(MessageHandler(Filters.all, handle_message))
+    u.start_polling()

requirements.frozen.txt

@@ -0,0 +1,14 @@
+asgiref==3.2.3
+certifi==2019.11.28
+cffi==1.14.0
+cryptography==2.8
+decorator==4.4.1
+Django==3.0.3
+future==0.18.2
+pycparser==2.19
+pyspellchecker==0.5.3
+python-telegram-bot==12.4.2
+pytz==2019.3
+six==1.14.0
+sqlparse==0.3.0
+tornado==6.0.3

requirements.txt

@@ -0,0 +1,3 @@
+django
+python-telegram-bot
+pyspellchecker

spelling_libreoffice_colibri_cc0.svg

@@ -0,0 +1 @@
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telegram-bot-use-proper-grammar.service

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+[Unit]
+Description=Use Proper Grammar Bot telegram service
+After=network.target
+
+[Service]
+User=http
+Group=http
+WorkingDirectory=/var/www/telegram_use_proper_grammar
+ExecStart=/usr/bin/make serve
+KillSignal=SIGINT
+
+[Install]
+WantedBy=multi-user.target