python - AWS S3 存储桶 Django 3.0 用户配置文件图像上传访问错误

Question

简介

我正在关注 this推荐的指南，这里是 guide's GitHub repo .

我也为它创建了一个 AmazonS3FullAccess

我正在使用指南的第三个示例“ 混合公共(public) Assets 和私有(private) Assets ”与静态、媒体公共(public)、媒体、私有(private)版本。

如果用户登录(本地开发环境)，他从网站上传文件，但他不能仅从 AWS S3 管理网站从网站访问它们。

目前我阻止了指南中的所有公共(public)访问(AWS S3 管理面板设置)

我已将这些行添加到我的 CORS 配置编辑器 来自 this other guide

<?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>

打开对我来说更本地化的中央欧盟服务器。没有工作我得到了同样的错误。

storage_backends.py

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

class StaticStorage(S3Boto3Storage):
    location = settings.AWS_STATIC_LOCATION

class PublicMediaStorage(S3Boto3Storage):
    location = settings.AWS_PUBLIC_MEDIA_LOCATION
    file_overwrite = False

class PrivateMediaStorage(S3Boto3Storage):
    location = settings.AWS_PRIVATE_MEDIA_LOCATION
    default_acl = 'private'
    file_overwrite = False
    custom_domain = False

设置.py

STATICFILES_DIRS = [os.path.join(BASE_DIR, 'MYPROJECTS_MAIN_APP/static'),]

AWS_ACCESS_KEY_ID = 'DSHUGASGHLASF678FSHAFH'
AWS_SECRET_ACCESS_KEY = 'uhsdgahsfgskajgjkafgjkdfjkgkjdfgfg'
AWS_STORAGE_BUCKET_NAME = 'MYSTORAGE289377923'
AWS_S3_CUSTOM_DOMAIN = '%s.s3.amazonaws.com' % AWS_STORAGE_BUCKET_NAME

AWS_S3_OBJECT_PARAMETERS = {
    'CacheControl': 'max-age=86400',
}

AWS_STATIC_LOCATION = 'static'
STATICFILES_STORAGE = 'mysite.storage_backends.StaticStorage'
STATIC_URL = "https://%s/%s/" % (AWS_S3_CUSTOM_DOMAIN, AWS_STATIC_LOCATION)

AWS_PUBLIC_MEDIA_LOCATION = 'media/public'
DEFAULT_FILE_STORAGE = 'mysite.storage_backends.PublicMediaStorage'

AWS_PRIVATE_MEDIA_LOCATION = 'media/private'
PRIVATE_FILE_STORAGE = 'mysite.storage_backends.PrivateMediaStorage'

AWS_S3_HOST = "s3.eu-central-1.amazonaws.com"
S3_USE_SIGV4 = True
AWS_S3_REGION_NAME = "eu-central-1"

模型.py

from django.db import models
from django.conf import settings
from django.contrib.auth.models import User

from mysite.storage_backends import PrivateMediaStorage


class Document(models.Model):
    uploaded_at = models.DateTimeField(auto_now_add=True)
    upload = models.FileField()


class PrivateDocument(models.Model):
    uploaded_at = models.DateTimeField(auto_now_add=True)
    upload = models.FileField(storage=PrivateMediaStorage())
    user = models.ForeignKey(User, related_name='documents')

View .py

from django.contrib.auth.decorators import login_required
from django.views.generic.edit import CreateView
from django.urls import reverse_lazy
from django.utils.decorators import method_decorator

from .models import Document, PrivateDocument


class DocumentCreateView(CreateView):
    model = Document
    fields = ['upload', ]
    success_url = reverse_lazy('home')

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        documents = Document.objects.all()
        context['documents'] = documents
        return context


@method_decorator(login_required, name='dispatch')
class PrivateDocumentCreateView(CreateView):
    model = PrivateDocument
    fields = ['upload', ]
    success_url = reverse_lazy('profile')

    def form_valid(self, form):
        self.object = form.save(commit=False)
        self.object.user = self.request.user
        self.object.save()
        return super().form_valid(form)

错误

This XML file does not appear to have any style information associated with it. The document tree is shown below.
<Error>
<Code>AccessDenied</Code>
<Message>Access Denied</Message>
<RequestId>56fg67dfg56df7g67df</RequestId>
<HostId>
hsiugYIGYfhuieHF7weg68g678dsgds78g67dsg86sdg68ds7g68ds7yfsd8f8hd7
</HostId>
</Error>

到目前为止我尝试过的东西

它创建了 AWS 链接并将文件添加到本地“媒体”文件夹中。但是由于我删除了“媒体文件夹”并且它只创建了 URL 链接，并且实际上将它们上传到 S3 存储桶

我发现了相同的 question在 aws 论坛上，但尚未得到答复

访问权限 Django + AWS S3 Bucket: Authenticated Access to S3 Bucket (我不明白这个答案 https://stackoverflow.com/a/21614550/10270590)

“使用 AWS4-HMAC-SHA256”

将 S3 主机的区域指定为正确的用法 https://github.com/aws/aws-sdk-js/issues/829

查找您所在地区的站点 - https://docs.aws.amazon.com/general/latest/gr/rande.html

我也收到了这个建议“大多数新区域仅支持 AWS4-HMAC-SHA256 - 如果您的代码不支持此身份验证方案并且仅创建“v2 签名”，请在旧区域之一(例如欧洲)创建您的存储桶成为唯一的爱尔兰 - 在这里查看:https://docs.aws.amazon.com/general/latest/gr/signature-version-2.html“

我在 欧盟与我的测试机 - 我建立了一个美国基地 S3 存储桶 - 我如何配置 Django 应用程序或 AWS S3 存储桶，以便它可以从任何地方访问它(特别重要的是部署该应用程序以便世界各地的人们都可以访问它)。来自同一个男人 video's评论区评论了以下Steve D
Great video series, just to say I am using an S3 bucket in Europe and needed to add additional settings AWS_S3_HOST = "s3.eu-west-2.amazonaws.com" and AWS_S3_REGION_NAME="eu-west-2" to make it work

这是我添加到设置中的确切代码 based on除了原始指南的代码之外。当我切换图像时，它可以工作，但是当我离开配置文件设置并返回时，图像消失并给出原始错误):

AWS_S3_HOST = "s3.eu-central-1.amazonaws.com"
S3_USE_SIGV4 = True
AWS_S3_REGION_NAME = "eu-central-1"

关闭所有访问限制(临时)并将存储桶策略添加到 AWS S3 管理控制台

1 代码:{ "Version":"2012-10-17", "Statement":[{ "Sid":"PublicReadGetObject", "Effect":"Allow", "Principal": "", "Action":["s3:GetObject"], "Resource":["arn:aws:s3:::myprojectname_that_jsut_abow_this_field/*" ] } ] } --> 错误

2 代码:{ "Version":"2012-10-17", "Statement":[{ "Sid":"PublicReadGetObject", "Effect":"Allow", "Principal": "", "Action":["s3:GetObject"], "Resource":["arn:aws:s3:::myprojectname_that_jsut_abow_this_field/" ] } ] }/* --> 错误

3 CODE:我改成这个了{ "Version":"2012-10-17", "Statement":[{ "Sid":"PublicReadGetObject", "Effect":"Allow", "Principal": "*", "Action":["s3:GetObject"], "Resource":"arn:aws:s3:::myprojectname_that_jsut_abow_this_field/*" } ] }并得到以下错误:Error Access denied

4 代码:{ "Version":"2012-10-17", "Statement":[{ "Sid":"PublicReadGetObject", "Effect":"Allow", "Principal": "", "Action":["s3:GetObject"], "Resource":"arn:aws:s3:::myprojectname_that_jsut_abow_this_field/*" } ] }错误:Error Missing required field Principal cannot be empty!

Answer 1

在 AWS 控制台中，单击“权限”选项卡，然后单击

允许公开访问您的存储桶 -> 保存 -> 确认

“存储桶策略”按钮。将出现一个编辑框。将编辑框中的“arn:aws:s3:::”替换为编辑框上方显示的以“arn:”开头的部分，但请注意保留末尾的“/*”。使用下面的代码。粘贴以下内容:

 {
  "Version":"2012-10-17",
  "Statement":[{
    "Sid":"PublicReadGetObject",
        "Effect":"Allow",
      "Principal": "*",
      "Action":["s3:GetObject"],
      "Resource":["arn:aws:s3:::your-buckt-arn/*"
      ]
    }
  ]
}