Merge branch 'master' of https://github.com/OriginProtocol/telegram-moderator

README.md

@@ -5,9 +5,11 @@ Head to https://www.originprotocol.com/developers to learn more about what we're
 # Telegram Bot
 
 - Deletes messages matching specified patterns
-- Bans users for posting messagses matching specified patterns
+- Bans users for posting messages matching specified patterns
 - Bans users with usernames matching specified patterns
-- Records logs of converstations
+- Records logs of conversations
+- Logs an English translation of any foreign languages using Google Translate
+- Uses textblob for basic sentiment analysis of both polarity and subjectivity
 
 ## Installation
 
@@ -17,10 +19,13 @@ Head to https://www.originprotocol.com/developers to learn more about what we're
 - `pip install --upgrade -r requirements.txt`
 
 ## Database setup
+
 - Store database URL in environment variable.
+
 ```
 export TELEGRAM_BOT_POSTGRES_URL="postgresql://<user>:<password>@localhost:5432/<databasename>"
 ```
+
 - Run: `python model.py` to setup the DB tables.
 
 ## Setup
@@ -32,6 +37,7 @@ Head to https://www.originprotocol.com/developers to learn more about what we're
 ```
 export TELEGRAM_BOT_TOKEN="4813829027:ADJFKAf0plousH2EZ2jBfxxRWFld3oK34ya"
 ```
+
 - Create your Telegram group.
 - Add your bot to the group like so: https://stackoverflow.com/questions/37338101/how-to-add-a-bot-to-a-telegram-group
 - Make your bot an admin in the group
@@ -48,7 +54,24 @@ Head to https://www.originprotocol.com/developers to learn more about what we're
 - `ADMIN_EXEMPT` : If set to anything except `false`, admin users will be exempt from monitoring. Reccomended to be set, but useful to turn off for debugging.
 - `NOTIFY_CHAT` : ID of chat to report actions. Can be useful if you have an admin-only chat where you want to monitor the bot's activity. E.g. `-140532994`
 
+## Download the corpus for Textblob
+
+For sentiment analysis to work, you'll need to download the latest corpus file for textblob. You can do this by running:
+
+```
+python -m textblob.download_corpora
+```
+
+If you're running the bot on Heroku, set an environment variable named `NLTK_DATA` to `/app/nltk_data` by running:
+
+```
+heroku config:set NLTK_DATA='/app/nltk_data'
+```
+
+## Message ban patterns
+
 Sample bash file to set `MESSAGE_BAN_PATTERNS`:
+
 ```
 read -r -d '' MESSAGE_BAN_PATTERNS << 'EOF'
 # ETH Address
@@ -60,15 +83,17 @@ read -r -d '' MESSAGE_BAN_PATTERNS << 'EOF'
 EOF
 ```
 
-## Attachements
+## Attachments
 
 By default, any attachments other than images or animations will cause the message to be hidden.
 
 ## Running
 
 ### Locally
+
 - Run: `python bot.py` to start logger
 - Messages will be displayed on `stdout` as they are logged.
 
 ### On Heroku
+
 - You must enable the worker on Heroku app dashboard. (By default it is off.)

bin/install_textblob_corpora

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+
+source $BIN_DIR/utils
+
+echo "-----> Starting corpora installation"
+
+# Assumes NLTK_DATA environment variable is already set
+# $ heroku config:set NLTK_DATA='/app/nltk_data'
+
+# Install the default corpora to NLTK_DATA directory
+python -m textblob.download_corpora
+
+# Open the NLTK_DATA directory
+cd ${NLTK_DATA}
+
+# Delete all of the zip files in the NLTK DATA directory
+find . -name "*.zip" -type f -delete
+
+echo "-----> Finished corpora installatio"

bin/post_compile

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+if [ -f bin/install_textblob_corpora ]; then
+    echo "-----> Running install_textblob_corpora"
+    chmod +x bin/install_textblob_corpora
+    bin/install_textblob_corpora
+fi
+
+echo "-----> Post-compile done"

bot.py

@@ -19,6 +19,7 @@ import re
 import unidecode
 from mwt import MWT
 from googletrans import Translator
+from textblob import TextBlob
 
 class TelegramMonitorBot:
 
@@ -26,12 +27,12 @@ class TelegramMonitorBot:
     def __init__(self):
         self.debug = (
             (os.environ.get('DEBUG') is not None) and
-            (os.environ.get('DEBUG').upper() != "false"))
+            (os.environ.get('DEBUG').lower() != "false"))
 
         # Are admins exempt from having messages checked?
         self.admin_exempt = (
             (os.environ.get('ADMIN_EXEMPT') is not None) and
-            (os.environ.get('ADMIN_EXEMPT').upper() != "false"))
+            (os.environ.get('ADMIN_EXEMPT').lower() != "false"))
 
         if (self.debug):
             print("🔵 debug:", self.debug)
@@ -304,20 +305,26 @@ class TelegramMonitorBot:
 
         return bool_set
 
-
     def log_message(self, user_id, user_message, chat_id):
         try:
             s = session()
             language_code = english_message = ""
+            polarity = subjectivity = 0.0
             try:
+                # translate to English & log the original language
                 translator = Translator()
                 translated = translator.translate(user_message)
                 language_code = translated.src
                 english_message = translated.text
+                # run basic sentiment analysis on the translated English string
+                analysis = TextBlob(english_message)
+                polarity = analysis.sentiment.polarity
+                subjectivity = analysis.sentiment.subjectivity
             except Exception as e:
                 print(e.message)
-            msg1 = Message(user_id=user_id, message=user_message,
-                           chat_id=chat_id, language_code=language_code, english_message=english_message)
+            msg1 = Message(user_id=user_id, message=user_message, chat_id=chat_id, 
+                language_code=language_code, english_message=english_message, polarity=polarity,
+                subjectivity=subjectivity)
             s.add(msg1)
             s.commit()
             s.close()

model.py

@@ -1,4 +1,4 @@
-from sqlalchemy import Column, DateTime, BigInteger, String, Integer, ForeignKey, func
+from sqlalchemy import Column, DateTime, BigInteger, String, Integer, Numeric, ForeignKey, func
 from sqlalchemy.orm import relationship, backref
 from sqlalchemy.ext.declarative import declarative_base
 import os
@@ -30,9 +30,10 @@ class Message(Base):
     language_code = Column(String)
     english_message = Column(String)
     chat_id = Column(BigInteger)
+    polarity = Column(Numeric)
+    subjectivity = Column(Numeric)
     time = Column(DateTime, default=func.now())
 
-
 class MessageHide(Base):
     __tablename__ = 'telegram_message_hides'
     id = Column(Integer, primary_key=True)

requirements.txt

@@ -4,3 +4,6 @@ SQLAlchemy==1.2.2
 configparser==3.5.0
 Unidecode==1.0.22
 googletrans==2.4.0
+textblob==0.15.3
+ipython==5.5.0
+