🐛 嵌入bytes需要先转换为Base64

Author: AzideCupric

nonebot_bison/theme/themes/ceobe_canteen/parse.py

@@ -6,6 +6,7 @@
 from pydantic import BaseModel, root_validator
 from nonebot_plugin_saa import Text, Image, MessageSegmentFactory
 
+from nonebot_bison.theme.utils import web_embed_image
 from nonebot_bison.utils import pic_merge, is_pics_mergable
 from nonebot_bison.theme import Theme, ThemeRenderError, ThemeRenderUnsupportError
 
@@ -72,7 +73,7 @@ def parse(self, post: "Post") -> CeobeCard:
 
         head_pic = post.images[0] if post.images else None
         if head_pic is not None and not isinstance(head_pic, str):
-            raise ThemeRenderUnsupportError("post.images[0] is not str")
+            head_pic = web_embed_image(head_pic)
 
         content = CeoboContent(image=head_pic, text=post.content)
         return CeobeCard(info=info, content=content, qr=post.url)  # TODO： 这里需要链接转qr码图片，暂时先用链接代替

nonebot_bison/theme/utils.py

@@ -0,0 +1,17 @@
+from io import BytesIO
+from pathlib import Path
+from base64 import b64encode
+
+
+def web_embed_image(pic_data: bytes | Path | BytesIO, *, ext: str = "png"):
+    """将图片数据转换为Base64编码的Data URI"""
+    match pic_data:
+        case bytes():
+            pic_bytes = pic_data
+        case Path():
+            pic_bytes = Path(pic_data).read_bytes()
+        case BytesIO():
+            pic_bytes = pic_data.getvalue()
+        case _:
+            raise TypeError("pic_data must be bytes, Path or BytesIO")
+    return f"data:image/{ext};base64,{b64encode(pic_bytes).decode()}"