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import os
import time
import io
import hashlib
def clear_old_files(dir="files",passed_time=60*60):
try:
files = os.listdir(dir)
current_time = time.time()
for file in files:
file_path = os.path.join(dir,file)
ctime = os.stat(file_path).st_ctime
diff = current_time - ctime
#print(f"ctime={ctime},current_time={current_time},passed_time={passed_time},diff={diff}")
if diff > passed_time:
os.remove(file_path)
except:
print("maybe still gallery using error")
def get_buffer_id(buffer):
hash_object = hashlib.sha256(buffer.getvalue())
hex_dig = hash_object.hexdigest()
unique_id = hex_dig[:32]
return unique_id
def get_image_id(image):
buffer = io.BytesIO()
image.save(buffer, format='PNG')
return get_buffer_id(buffer)
def save_image(image,extension="jpg",dir_name="files"):
id = get_image_id(image)
os.makedirs(dir_name,exist_ok=True)
file_path = f"{dir_name}/{id}.{extension}"
image.save(file_path)
return file_path
def save_buffer(buffer,extension="webp",dir_name="files"):
id = get_buffer_id(buffer)
os.makedirs(dir_name,exist_ok=True)
file_path = f"{dir_name}/{id}.{extension}"
with open(file_path,"wb") as f:
f.write(buffer.getvalue())
return file_path
def write_file(file_path,text):
with open(file_path, 'w', encoding='utf-8') as f:
f.write(text)
def read_file(file_path):
"""read the text of target file
"""
with open(file_path, 'r', encoding='utf-8') as f:
content = f.read()
return content |