mirror of
https://github.com/langbot-app/LangBot.git
synced 2025-11-25 19:37:36 +08:00
108 lines
3.7 KiB
Python
108 lines
3.7 KiB
Python
import base64
|
||
import typing
|
||
import io
|
||
from urllib.parse import urlparse, parse_qs
|
||
import ssl
|
||
|
||
import aiohttp
|
||
import PIL.Image
|
||
import httpx
|
||
|
||
async def get_wecom_image_base64(pic_url: str) -> tuple[str, str]:
|
||
"""
|
||
下载企业微信图片并转换为 base64
|
||
:param pic_url: 企业微信图片URL
|
||
:return: (base64_str, image_format)
|
||
"""
|
||
async with aiohttp.ClientSession() as session:
|
||
async with session.get(pic_url) as response:
|
||
if response.status != 200:
|
||
raise Exception(f"Failed to download image: {response.status}")
|
||
|
||
# 读取图片数据
|
||
image_data = await response.read()
|
||
|
||
# 获取图片格式
|
||
content_type = response.headers.get('Content-Type', '')
|
||
image_format = content_type.split('/')[-1] # 例如 'image/jpeg' -> 'jpeg'
|
||
|
||
# 转换为 base64
|
||
import base64
|
||
image_base64 = base64.b64encode(image_data).decode('utf-8')
|
||
|
||
return image_base64, image_format
|
||
|
||
async def get_qq_official_image_base64(pic_url:str,content_type:str) -> tuple[str,str]:
|
||
"""
|
||
下载QQ官方图片，
|
||
并且转换为base64格式
|
||
"""
|
||
async with httpx.AsyncClient() as client:
|
||
response = await client.get(pic_url)
|
||
response.raise_for_status() # 确保请求成功
|
||
image_data = response.content
|
||
base64_data = base64.b64encode(image_data).decode('utf-8')
|
||
|
||
return f"data:{content_type};base64,{base64_data}"
|
||
|
||
|
||
def get_qq_image_downloadable_url(image_url: str) -> tuple[str, dict]:
|
||
"""获取QQ图片的下载链接"""
|
||
parsed = urlparse(image_url)
|
||
query = parse_qs(parsed.query)
|
||
return f"http://{parsed.netloc}{parsed.path}", query
|
||
|
||
|
||
async def get_qq_image_bytes(image_url: str, query: dict={}) -> tuple[bytes, str]:
|
||
"""[弃用]获取QQ图片的bytes"""
|
||
image_url, query_in_url = get_qq_image_downloadable_url(image_url)
|
||
query = {**query, **query_in_url}
|
||
ssl_context = ssl.create_default_context()
|
||
ssl_context.check_hostname = False
|
||
ssl_context.verify_mode = ssl.CERT_NONE
|
||
async with aiohttp.ClientSession(trust_env=False) as session:
|
||
async with session.get(image_url, params=query, ssl=ssl_context) as resp:
|
||
resp.raise_for_status()
|
||
file_bytes = await resp.read()
|
||
content_type = resp.headers.get('Content-Type')
|
||
if not content_type:
|
||
image_format = 'jpeg'
|
||
elif not content_type.startswith('image/'):
|
||
pil_img = PIL.Image.open(io.BytesIO(file_bytes))
|
||
image_format = pil_img.format.lower()
|
||
else:
|
||
image_format = content_type.split('/')[-1]
|
||
return file_bytes, image_format
|
||
|
||
|
||
async def qq_image_url_to_base64(
|
||
image_url: str
|
||
) -> typing.Tuple[str, str]:
|
||
"""[弃用]将QQ图片URL转为base64，并返回图片格式
|
||
|
||
Args:
|
||
image_url (str): QQ图片URL
|
||
|
||
Returns:
|
||
typing.Tuple[str, str]: base64编码和图片格式
|
||
"""
|
||
image_url, query = get_qq_image_downloadable_url(image_url)
|
||
|
||
# Flatten the query dictionary
|
||
query = {k: v[0] for k, v in query.items()}
|
||
|
||
file_bytes, image_format = await get_qq_image_bytes(image_url, query)
|
||
|
||
base64_str = base64.b64encode(file_bytes).decode()
|
||
|
||
return base64_str, image_format
|
||
|
||
async def extract_b64_and_format(image_base64_data: str) -> typing.Tuple[str, str]:
|
||
"""提取base64编码和图片格式
|
||
|
||
data:image/jpeg;base64,xxx
|
||
提取出base64编码和图片格式
|
||
"""
|
||
base64_str = image_base64_data.split(',')[-1]
|
||
image_format = image_base64_data.split(':')[-1].split(';')[0].split('/')[-1]
|
||
return base64_str, image_format |