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af8206c529
fixing offline streamer handling not being able to handle streamer without current sessions
100 lines
4.7 KiB
Python
100 lines
4.7 KiB
Python
from __main__ import app
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from PIL import Image, ImageOps
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from flask import request
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import requests
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import validators
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import logging
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import io
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from utils import flask_utils
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bonk_angles = [40, 45, -5, 0, 5, 45, -40, 45, -30, -5, 50, 40, 5, 0, -45, 15, 5, 40, 0, -45, 5, -40, 60, -50, -40]
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allowed_content_length = 4_000_000
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allowed_image_formats = ['image/png', 'image/jpeg', 'image/jpg', 'image/gif']
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gif_speedup_factor = 2
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def get_avatar_height_factor(angle):
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return max(0.1, angle * -1 / 45)
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@app.route('/memes/bonk/file.gif') # to directly embed, discord _requires_ this file ending, it seems
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def bonk_animated():
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url = request.args.get('url')
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if not validators.url(url):
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return 'no valid url', 400
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session = requests.Session()
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response = session.head(url)
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content_type = response.headers['content-type']
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if content_type not in allowed_image_formats:
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return f'Incorrect image type {content_type}', 400
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actual_content_length = int(response.headers['content-length'])
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if actual_content_length > allowed_content_length:
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return f'Image too large {actual_content_length}', 400
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image_file = requests.get(url, stream=True)
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input_image = Image.open(io.BytesIO(image_file.content))
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original_input_image = input_image
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old_width, old_height = input_image.size
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with Image.open('resources/img/newspaper.png') as newspaper_image:
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newspaper_image = newspaper_image.convert('RGBA')
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newspaper_width, newspaper_height = newspaper_image.size
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newspaper_ratio = old_width / newspaper_width
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desired_new_newspaper_width = int(newspaper_width * newspaper_ratio)
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desired_newspaper_height = newspaper_height
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if newspaper_ratio > 1:
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newspaper_image = newspaper_image.resize((desired_new_newspaper_width, desired_newspaper_height))
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else:
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newspaper_image = ImageOps.contain(newspaper_image, (desired_new_newspaper_width, desired_newspaper_height))
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new_newspaper_width, new_newspaper_height = newspaper_image.size
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new_total_height = new_newspaper_height
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if content_type == 'image/gif':
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logging.info(f'Rendering bonk for gif.')
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frame_count = original_input_image.n_frames
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old_frames = []
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for frame_index in range(frame_count):
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input_image.seek(frame_index)
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frame = input_image.convert('RGBA')
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old_frames.append(frame)
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frames = []
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current_factor = 1
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for index, old_frame in enumerate(old_frames):
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angle = bonk_angles[index % len(bonk_angles)]
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frame = Image.new('RGBA', (old_width, new_total_height), (0, 0, 0, 0))
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current_factor *= (1 - get_avatar_height_factor(angle))
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current_factor += 0.2
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current_factor = min(1, current_factor)
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avatar_height_factor = current_factor
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target_height = int(max(1, old_height / 2 * avatar_height_factor))
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old_frame = old_frame.resize((int(old_width / 2), target_height))
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target_position = int(old_height / 2 + (1 - avatar_height_factor) * old_height / 2)
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frame.paste(old_frame, (int(old_width / 2), target_position), old_frame)
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rotated_news_paper = newspaper_image.rotate(angle, center=(0, new_newspaper_height))
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frame.paste(rotated_news_paper, (0, 0), rotated_news_paper)
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frames.append(frame)
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return flask_utils.serve_pil_gif_image(frames, (int(original_input_image.info['duration']) / gif_speedup_factor))
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else:
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frames = []
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logging.info(f'Rendering bonk for static image.')
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input_image = input_image.convert('RGBA')
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current_factor = 1
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for angle in bonk_angles:
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frame = Image.new('RGBA', (old_width, old_height), (0, 0, 0, 0))
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current_factor *= (1 - get_avatar_height_factor(angle))
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current_factor += 0.2
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current_factor = min(1, current_factor)
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avatar_height_factor = current_factor
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target_height = int(max(1, old_height / 2 * avatar_height_factor))
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frame_input_image = input_image.resize((int(old_width / 2), target_height))
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target_position = int(old_height / 2 + (1 - avatar_height_factor) * old_height / 2)
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frame.paste(frame_input_image, (int(old_width / 2), target_position), frame_input_image)
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rotated_news_paper = newspaper_image.rotate(angle, center=(0, new_newspaper_height))
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frame.paste(rotated_news_paper, (0, 0), rotated_news_paper)
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frames.append(frame)
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return flask_utils.serve_pil_gif_image(frames, 50)
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