首页 > 解决方案 > 使用 Django 的 AWS 文件上传问题

问题描述

我已经通过 cpanel 部署了我的 django 应用程序。静态和媒体文件通过 AWS S3 正确提供。但是当我尝试上传文件/图片时,它没有上传并且没有显示错误,并使用上传文件的页面的 url 重定向到主页。主页 URL:www.example.com,上传页面 URL:www.example.com/upload

存储桶访问是公开的。IAM 用户可以完全访问 S3 我将非常感谢您的宝贵时间和帮助。

CORS Policy

<?xml version="1.0" encoding="UTF-8"?>
<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
<CORSRule>
    <AllowedOrigin>*</AllowedOrigin>
    <AllowedMethod>GET</AllowedMethod>
    <AllowedMethod>POST</AllowedMethod>
    <AllowedMethod>PUT</AllowedMethod>
    <AllowedHeader>*</AllowedHeader>
</CORSRule>
</CORSConfiguration>

Bucket Policy
{
    "Version": "2012-10-17",
    "Id": "Policy1603207554013",
    "Statement": [
        {
            "Sid": "Stmt1603207062804",
            "Effect": "Allow",
            "Principal": "*",
            "Action": "s3:GetObject",
            "Resource": "arn:aws:s3:::django-bucket/*"
        },
        {
            "Sid": "Stmt1603207552031",
            "Effect": "Allow",
            "Principal": {
                "AWS": "arn:aws:iam::085459706277:user/django_user"
            },
            "Action": "s3:*",
            "Resource": [
                "arn:aws:s3:::django-bucket/*",
                "arn:aws:s3:::django-bucket"
            ]
        }
    ]
}
settings.py

AWS_ACCESS_KEY_ID = os.getenv('AWS_ACCESS_KEY_ID')
AWS_SECRET_ACCESS_KEY = os.getenv('AWS_SECRET_ACCESS_KEY')
AWS_STORAGE_BUCKET_NAME = os.getenv('AWS_STORAGE_BUCKET_NAME')
AWS_DEFAULT_ACL = None
AWS_S3_CUSTOM_DOMAIN = f'{AWS_STORAGE_BUCKET_NAME}.s3.amazonaws.com'
AWS_S3_OBJECT_PARAMETERS = {'CacheControl': 'max-age=86400'}
# s3 static settings
STATIC_LOCATION = 'static'
STATIC_URL = f'https://{AWS_S3_CUSTOM_DOMAIN}/{STATIC_LOCATION}/'
STATICFILES_STORAGE = 'stock_app.storage_backends.StaticStorage'
# s3 public media settings
PUBLIC_MEDIA_LOCATION = 'media'
MEDIA_URL = f'https://{AWS_S3_CUSTOM_DOMAIN}/{PUBLIC_MEDIA_LOCATION}/'
DEFAULT_FILE_STORAGE = 'stock_app.storage_backends.PublicMediaStorage'
storage_backends.py

from storages.backends.s3boto3 import S3Boto3Storage
from django.conf import settings


class StaticStorage(S3Boto3Storage):
    location = 'static'
    default_acl = 'public-read'


class PublicMediaStorage(S3Boto3Storage):
    location = 'media'
    default_acl = 'public-read'
    file_overwrite = False
models.py

class Upload(models.Model):
    file = models.FileField(upload_to='data base')

    def __str__(self):
        return f'{self.file} Success'
forms.py

class UploadFileForm(forms.ModelForm):
    class Meta:
        model = Upload
        fields = ['file']
views.py

@login_required
def upload_file(request):

    if request.method == 'POST':
        form = UploadFileForm(request.POST, request.FILES)
        if form.is_valid():
            file = request.FILES['file'] 
            output = files_to_database(file) 

            if not output: #checks to see if file is not already in database 
                form.save()
            
            return redirect('upload')
    else:
        form = UploadFileForm()
        

    return render(request, 'stock_app/upload.html', {'form': form})

标签: pythondjangoamazon-web-servicesamazon-s3

解决方案


存储桶策略存在问题。在这个网站上找到了答案: https : //testdriven.io/blog/storing-django-static-and-media-files-on-amazon-s3/ 对我有用的政策是:

Bucket Policy

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "s3:*",
            "Resource": [
                "arn:aws:s3:::your-bucket-name",
                "arn:aws:s3:::your-bucket-name/*"
            ]
        }
    ]
}

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