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头像生成器flask.py
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头像生成器flask.py
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from flask import Flask, request, send_file, render_template, url_for
import requests
import base64
import json
from PIL import Image, ImageFilter
from io import BytesIO
import os
import time
app = Flask(__name__)
CACHE_DIR = 'static/cache'
CACHE_DURATION = 24 * 60 * 60 # 24 小时的秒数
if not os.path.exists(CACHE_DIR):
os.makedirs(CACHE_DIR)
def get_uuid_by_name(username):
"""根据玩家名称获取 UUID。"""
url = f"https://api.mojang.com/users/profiles/minecraft/{username}"
response = requests.get(url)
if response.status_code == 404:
return None
data = response.json()
return data['id']
def get_player_textures(uuid):
"""根据 UUID 获取玩家的皮肤纹理信息。"""
url = f"https://sessionserver.mojang.com/session/minecraft/profile/{uuid}?unsigned=false"
response = requests.get(url)
if response.status_code != 200:
return None
data = response.json()
if 'properties' not in data:
return None
properties = data['properties']
for prop in properties:
if prop['name'] == 'textures':
textures_base64 = prop['value']
textures_json = base64.b64decode(textures_base64).decode('utf-8')
textures = json.loads(textures_json)
return textures
return None
def download_image(url):
"""下载图像并返回 PIL 图像对象。"""
response = requests.get(url)
if response.status_code == 200:
return Image.open(BytesIO(response.content))
else:
return None
def create_image_with_paste(source_image, target_image_path, canvas_size, operations):
"""创建图像并保存到目标路径。"""
canvas = Image.new('RGBA', canvas_size, (255, 255, 255, 0))
resized_source_image = source_image.resize((128, 128), Image.NEAREST)
for operation in operations:
crop_box, scale_factor, paste_position = operation
cropped_image = resized_source_image.crop(crop_box)
new_size = (int(cropped_image.size[0] * scale_factor), int(cropped_image.size[1] * scale_factor))
bordered_size = (new_size[0] + 30, new_size[1] + 30)
bordered_image = Image.new('RGBA', bordered_size, (0, 0, 0, 0))
bordered_image.paste(cropped_image.resize(new_size, Image.NEAREST), (15, 15))
mask = bordered_image.split()[3]
solid_image = Image.new('RGBA', bordered_image.size, (75, 85, 142, 255))
shadow_image = Image.composite(solid_image, Image.new('RGBA', bordered_image.size), mask)
blurred_shadow = shadow_image.filter(ImageFilter.GaussianBlur(7))
alpha = blurred_shadow.split()[3].point(lambda p: p * 0.5)
blurred_shadow.putalpha(alpha)
shadow_position = (paste_position[0] - 15, paste_position[1] - 10)
canvas.paste(blurred_shadow, shadow_position, blurred_shadow)
adjusted_paste_position = (paste_position[0] - 15, paste_position[1] - 15)
canvas.paste(bordered_image, adjusted_paste_position, bordered_image)
canvas.save(target_image_path)
def get_cache_filename(username):
"""根据用户名生成缓存文件名。"""
uuid = get_uuid_by_name(username)
return os.path.join(CACHE_DIR, f'{uuid}.png') if uuid else None
def is_cache_valid(filename):
"""检查缓存是否有效。"""
if os.path.exists(filename):
return time.time() - os.path.getmtime(filename) < CACHE_DURATION
return False
@app.route('/', methods=['GET', 'POST'])
def index():
image_url = None
if request.method == 'POST':
username = request.form.get('username')
if not username:
return "玩家名称不能为空", 400
cache_filename = get_cache_filename(username)
if cache_filename and is_cache_valid(cache_filename):
image_url = url_for('static', filename=f'cache/{os.path.basename(cache_filename)}')
else:
uuid = get_uuid_by_name(username)
if uuid is None:
return "没有找到该玩家", 404
textures = get_player_textures(uuid)
if textures is None:
return "无法获取玩家纹理信息", 500
if 'SKIN' in textures['textures']:
skin_url = textures['textures']['SKIN']['url']
skin_image = download_image(skin_url)
if skin_image:
target_image_path = cache_filename
canvas_size = (1000, 1000) # 新画布的大小
operations = [
((8, 40, 16, 64), 8.375, (434,751)),
((8, 72, 16, 96), 9.375, (428,737)),
((40, 104, 48, 128), 8.375, (505,751)),
((8, 104, 16, 128), 9.375, (503,737)),
((86, 40, 92, 64), 8.167, (388,561)),
((88, 72, 94, 96), 9.5, (382,538)),
((74, 104, 80, 128), 8.167, (566,561)),
((104, 104, 110, 128), 9.5, (564,538)),
((40, 40, 56, 64), 8.0625, (437,561)),
((40, 72, 56, 96), 8.6575, (432,555)),
((16, 16, 32, 32), 26.875, (287,131)),
((80, 16, 96, 32), 30.8125, (254,107)),
]
create_image_with_paste(skin_image, target_image_path, canvas_size, operations)
image_url = url_for('static', filename=f'cache/{os.path.basename(target_image_path)}')
return render_template('index.html', image_url=image_url)
@app.route('/mc-avatar-api/<username>', methods=['GET'])
def mc_avatar_api(username):
cache_filename = get_cache_filename(username)
if cache_filename and is_cache_valid(cache_filename):
return send_file(cache_filename)
uuid = get_uuid_by_name(username)
if uuid is None:
return jsonify({"error": "没有找到该玩家"}), 404
textures = get_player_textures(uuid)
if textures is None:
return jsonify({"error": "无法获取玩家纹理信息"}), 500
if 'SKIN' in textures['textures']:
skin_url = textures['textures']['SKIN']['url']
skin_image = download_image(skin_url)
if skin_image:
target_image_path = cache_filename
canvas_size = (1000, 1000) # 新画布的大小
operations = [
((8, 40, 16, 64), 8.375, (434,751)),
((8, 72, 16, 96), 9.375, (428,737)),
((40, 104, 48, 128), 8.375, (505,751)),
((8, 104, 16, 128), 9.375, (503,737)),
((86, 40, 92, 64), 8.167, (388,561)),
((88, 72, 94, 96), 9.5, (382,538)),
((74, 104, 80, 128), 8.167, (566,561)),
((104, 104, 110, 128), 9.5, (564,538)),
((40, 40, 56, 64), 8.0625, (437,561)),
((40, 72, 56, 96), 8.6575, (432,555)),
((16, 16, 32, 32), 26.875, (287,131)),
((80, 16, 96, 32), 30.8125, (254,107)),
]
create_image_with_paste(skin_image, target_image_path, canvas_size, operations)
return send_file(target_image_path)
return jsonify({"error": "没有找到皮肤信息"}), 500
if __name__ == '__main__':
app.run(debug=True)