S3 Links Expire for Images

My S3 image links are expiring after one hour. This is because you store the URL to the backend within the textbox as the location it stores the file at with the Signature/Expiration that was given as a return from S3. This signature expires after 1 hour. I can make the Signature last 7 days at max, but then we’re back to the same issue.

<img src="https://bucketname.s3.amazonaws.com/django-summernote/2020-03-04/5cb7c679-2143-434d-a6e2-5cec03225411.jpg?AWSAccessKeyId=AAAAAAAAAAAAAAAAAAAAAAA&amp;Signature=BvNIMcOJurphnCKZaarGQDDnHc8%3D&amp;Expires=1583302245" style="width: 25%;">

To solve this issue, couldn’t you just reference the image location from the Attachments saved to the database?

https://bucketname.s3.amazonaws.com/django-summernote/2020-03-04/5cb7c679-2143-434d-a6e2-5cec03225411.jpg?AWSAccessKeyId=AAAAAAAAAAAAAAAAAAAAAAA&Signature=VowPCxFZ9ZjMbb7WdnhoMYk46Q8%3D&Expires=1583351249

[jasonhoward64]

This is the code to resolve the issue. Been using this for a couple years.

pip install beautifulsoup4

At the top of views.py

from bs4 import BeautifulSoup 
from urllib.parse import urlsplit

Within your view:

    if form.is_valid():
        instance = form.save(commit=False)
           
        #remove s3 query info in media files uploaded to summernote. This is because the file name is not being updated when served and thus, the link expires if we don't do this.

        soup = BeautifulSoup(instance.body, "html.parser")
        for img in soup.find_all('img'):
            img_url = img['src']
            new_url = urlsplit(img_url)._replace(query=None).geturl()
            img['src'] = new_url
        instance.body = str(soup) 

        instance.save()

I should mention that the field ‘body’ is the field with the summernote widget.

[aleemnazer]

Well, there is another simple way to do this. which is recommended by documentation.
just override django storage class like this.

from storages.backends.s3boto3 import S3Boto3Storage
class SummerNoteStorage(S3Boto3Storage):
    location = 'static'
    default_acl = 'public-read'
    querystring_auth=False

look at this option, it will do magic. querystring_auth=False
and then use this class in your settings file. like this.

SUMMERNOTE_CONFIG = {
    'attachment_absolute_uri': True,
    'attachment_storage_class': 'gradingly.storage_backends.SummerNoteStorage',
}

I hope this will be helpful.