add morj command

main.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 
 import logging
+import os
 import traceback
 from datetime import datetime, timedelta
 from html import escape
@@ -8,6 +9,7 @@ from queue import Queue, Empty
 from time import sleep
 from threading import Thread
 from typing import Dict, List
+from uuid import uuid4
 
 import sentry_sdk
 from telegram.error import Unauthorized, TelegramError
@@ -17,6 +19,7 @@ from telegram import Message, Update, Bot, InlineKeyboardMarkup, InlineKeyboardB
 
 from config import BOT_TOKEN, SENTRY_DSN, MANAGEMENT_CHAT, DEBUG
 from db import get_conn, Subscriber, PersistentMapping, commit
+from morj import draw_morj
 from send_users_list import send_users_list
 
 
@@ -232,6 +235,14 @@ def users_list(bot: Bot, update: Update):
         update.effective_message.reply_text('\n'.join(messages[i:i+40]), parse_mode='html')
 
 
+def morj(bot: Bot, update: Update):
+    text = update.effective_message.text[5:]
+    fname = '/tmp/morj{}.png'.format(uuid4())
+    draw_morj(text, fname)
+    update.effective_message.reply_document(open(fname, 'rb'))
+    os.unlink(fname)
+
+
 def _process_message(bot: Bot, m: Message):
     if m.sticker or m.animation:
         delta = datetime.now() - conn.root.last_media
@@ -363,6 +374,7 @@ if __name__ == '__main__':
     updater.dispatcher.add_handler(CommandHandler('remove', remove_user, Filters.chat(MANAGEMENT_CHAT), pass_args=True))
     updater.dispatcher.add_handler(CallbackQueryHandler(remove_user, pattern=r'^remove (\d+)$', pass_groups=True))
     updater.dispatcher.add_handler(CommandHandler('users', users_list, Filters.private))
+    updater.dispatcher.add_handler(CommandHandler('morj', morj))
     updater.dispatcher.add_handler(MessageHandler(Filters.private, msg))
 
     updater.start_polling()

morj.py

@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+# coding: utf-8
+
+# Copyright 2011 Álvaro Justen [alvarojusten at gmail dot com]
+# License: GPL <http://www.gnu.org/copyleft/gpl.html>
+
+from PIL import Image, ImageDraw, ImageFont
+
+FONT_FILE = 'CenturyGothicBold.ttf'
+BG = 'MORJ.png'
+
+
+class ImageText(object):
+    def __init__(self, filename_or_size, mode='RGBA', background=(0, 0, 0, 0),
+                 encoding='utf8'):
+        if isinstance(filename_or_size, str):
+            self.filename = filename_or_size
+            self.image = Image.open(self.filename)
+            self.size = self.image.size
+        elif isinstance(filename_or_size, (list, tuple)):
+            self.size = filename_or_size
+            self.image = Image.new(mode, self.size, color=background)
+            self.filename = None
+        self.draw = ImageDraw.Draw(self.image)
+        self.encoding = encoding
+
+    def save(self, filename=None):
+        self.image.save(filename or self.filename)
+
+    def get_font_size(self, text, font, max_width=None, max_height=None):
+        if max_width is None and max_height is None:
+            raise ValueError('You need to pass max_width or max_height')
+        font_size = 1
+        text_size = self.get_text_size(font, font_size, text)
+        if (max_width is not None and text_size[0] > max_width) or \
+                (max_height is not None and text_size[1] > max_height):
+            raise ValueError("Text can't be filled in only (%dpx, %dpx)" % text_size)
+        while True:
+            if (max_width is not None and text_size[0] >= max_width) or \
+               (max_height is not None and text_size[1] >= max_height):
+                return font_size - 1
+            font_size += 1
+            text_size = self.get_text_size(font, font_size, text)
+
+    def write_text(self, position, text, font_filename, font_size=11, color=(0, 0, 0), max_width=None, max_height=None):
+        x, y = position
+        if font_size == 'fill' and \
+           (max_width is not None or max_height is not None):
+            font_size = self.get_font_size(text, font_filename, max_width, max_height)
+        text_size = self.get_text_size(font_filename, font_size, text)
+        font = ImageFont.truetype(font_filename, font_size)
+        if x == 'center':
+            x = (self.size[0] - text_size[0]) / 2
+        if y == 'center':
+            y = (self.size[1] - text_size[1]) / 2
+        self.draw.text((x, y), text, font=font, fill=color)
+        return text_size
+
+    def get_text_size(self, font_filename, font_size, text):
+        font = ImageFont.truetype(font_filename, font_size)
+        return font.getsize(text)
+
+    def write_text_box(self, position, text, box_width, font_filename, font_size=11, color=(0, 0, 0), place='left',
+                       justify_last_line=False):
+        x, y = position
+        lines = []
+        line = []
+        text_height = 0
+        text_lines = text.split('\n')
+        for text_line in text_lines:
+            words = text_line.split(' ')
+            for word in words:
+                new_line = ' '.join(line + [word])
+                size = self.get_text_size(font_filename, font_size, new_line)
+                text_height = size[1]
+                if size[0] <= box_width:
+                    line.append(word)
+                else:
+                    lines.append(line)
+                    line = [word]
+            if line:
+                lines.append(line)
+                line = []
+        lines = [' '.join(line) for line in lines if line]
+        height = y
+        for index, line in enumerate(lines):
+            height += text_height
+            if place == 'left':
+                self.write_text((x, height), line, font_filename, font_size, color)
+            elif place == 'right':
+                total_size = self.get_text_size(font_filename, font_size, line)
+                x_left = x + box_width - total_size[0]
+                self.write_text((x_left, height), line, font_filename, font_size, color)
+            elif place == 'center':
+                total_size = self.get_text_size(font_filename, font_size, line)
+                x_left = int(x + ((box_width - total_size[0]) / 2))
+                self.write_text((x_left, height), line, font_filename, font_size, color)
+            elif place == 'justify':
+                words = line.split()
+                if (index == len(lines) - 1 and not justify_last_line) or len(words) == 1:
+                    self.write_text((x, height), line, font_filename, font_size, color)
+                    continue
+                line_without_spaces = ''.join(words)
+                total_size = self.get_text_size(font_filename, font_size, line_without_spaces)
+                space_width = (box_width - total_size[0]) / (len(words) - 1.0)
+                start_x = x
+                for word in words[:-1]:
+                    self.write_text((start_x, height), word, font_filename, font_size, color)
+                    word_size = self.get_text_size(font_filename, font_size, word)
+                    start_x += word_size[0] + space_width
+                last_word_size = self.get_text_size(font_filename, font_size, words[-1])
+                last_word_x = x + box_width - last_word_size[0]
+                self.write_text((last_word_x, height), words[-1], font_filename, font_size, color)
+        return box_width, height - y
+
+
+def draw_morj(text, filename):
+    img = ImageText(BG)
+    img.write_text_box((67, 70), text, box_width=800, font_filename=FONT_FILE, font_size=40, color=(255, 255, 255))
+    img.save(filename)