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44 lines
1.4 KiB
44 lines
1.4 KiB
from PIL import Image, ImageDraw, ImageFont,ImageFilter
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import random
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import string
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import os
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import io
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from functools import wraps
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from quart import session, redirect, url_for
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def generate_captcha():
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characters = string.ascii_uppercase + string.digits
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captcha_text = ''.join(random.choices(characters, k=6))
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font = ImageFont.truetype("arial.ttf", 36)
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image = Image.new('RGB', (200, 60), color=(255, 255, 255))
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draw = ImageDraw.Draw(image)
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for i in range(6):
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draw.text((10 + i * 30, 10), captcha_text[i], font=font,
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fill=(random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)))
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# 模糊化处理
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image = image.filter(ImageFilter.BLUR)
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# 将图片保存到BytesIO流中
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buffer = io.BytesIO()
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image.save(buffer, 'jpeg')
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buffer.seek(0)
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# captcha_path = os.path.join('static', 'captcha', f'{captcha_text}.png')
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# image.save(captcha_path)
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# return captcha_text, f'static/captcha/{captcha_text}.png'
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return captcha_text, buffer
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def verify_captcha(user_input, actual_captcha):
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return user_input == actual_captcha
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def login_required(f):
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@wraps(f)
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async def decorated_function(*args, **kwargs):
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if 'user' not in session:
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return redirect(url_for('main.index',error='未登录，请重新登录'))
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return await f(*args, **kwargs)
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return decorated_function
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