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✨ expend the image format type after the file is downloaded

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This commit is contained in:
Yanyutin753 2024-04-28 12:00:52 +08:00
parent 9af6c5300b
commit 3321a1b922
1 changed files with 38 additions and 22 deletions
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60
backend/apps/images/main.py
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@ -24,6 +24,7 @@ from utils.misc import calculate_sha256
from typing import Optional
from pydantic import BaseModel
from pathlib import Path
import mimetypes
import uuid
import base64
import json
@ -315,38 +316,47 @@ class GenerateImageForm(BaseModel):
def save_b64_image(b64_str):
image_id = str(uuid.uuid4())
file_path = IMAGE_CACHE_DIR.joinpath(f"{image_id}.png")
try:
# Split the base64 string to get the actual image data
img_data = base64.b64decode(b64_str)
header, encoded = b64_str.split(",", 1)
mime_type = header.split(";")[0]
# Write the image data to a file
image_format = mimetypes.guess_extension(mime_type)
img_data = base64.b64decode(encoded)
image_id = str(uuid.uuid4())
file_path = IMAGE_CACHE_DIR / f"{image_id}{image_format}"
with open(file_path, "wb") as f:
f.write(img_data)
return image_id
return image_id, image_format
except Exception as e:
log.error(f"Error saving image: {e}")
return None
log.exception(f"Error saving image: {e}")
return None, None
def save_url_image(url):
image_id = str(uuid.uuid4())
file_path = IMAGE_CACHE_DIR.joinpath(f"{image_id}.png")
try:
r = requests.get(url)
r.raise_for_status()
if r.headers["content-type"].split("/")[0] == "image":
with open(file_path, "wb") as image_file:
image_file.write(r.content)
mime_type = r.headers["content-type"]
image_format = mimetypes.guess_extension(mime_type)
if not image_format:
raise ValueError("Could not determine image type from MIME type")
file_path = IMAGE_CACHE_DIR.joinpath(f"{image_id}{image_format}")
with open(file_path, "wb") as image_file:
for chunk in r.iter_content(chunk_size=8192):
image_file.write(chunk)
return image_id, image_format
else:
log.error(f"Url does not point to an image.")
return None, None
return image_id
except Exception as e:
log.exception(f"Error saving image: {e}")
return None
return None, None
@app.post("/generations")
@ -385,8 +395,10 @@ def generate_image(
images = []
for image in res["data"]:
image_id = save_b64_image(image["b64_json"])
images.append({"url": f"/cache/image/generations/{image_id}.png"})
image_id, image_format = save_b64_image(image["b64_json"])
images.append(
{"url": f"/cache/image/generations/{image_id}{image_format}"}
)
file_body_path = IMAGE_CACHE_DIR.joinpath(f"{image_id}.json")
with open(file_body_path, "w") as f:
@ -422,8 +434,10 @@ def generate_image(
images = []
for image in res["data"]:
image_id = save_url_image(image["url"])
images.append({"url": f"/cache/image/generations/{image_id}.png"})
image_id, image_format = save_url_image(image["url"])
images.append(
{"url": f"/cache/image/generations/{image_id}{image_format}"}
)
file_body_path = IMAGE_CACHE_DIR.joinpath(f"{image_id}.json")
with open(file_body_path, "w") as f:
@ -460,8 +474,10 @@ def generate_image(
images = []
for image in res["images"]:
image_id = save_b64_image(image)
images.append({"url": f"/cache/image/generations/{image_id}.png"})
image_id, image_format = save_b64_image(image)
images.append(
{"url": f"/cache/image/generations/{image_id}{image_format}"}
)
file_body_path = IMAGE_CACHE_DIR.joinpath(f"{image_id}.json")
with open(file_body_path, "w") as f: