Request to build attachments' link with unified format

[JohnNiang]

Your current Halo version

2.20.7

Describe this feature

Currently, if we upload a file into S3 bucket with private read permission, the object cannot be accessed directly. We have to build a presigned URL to share the object, but the URL has expiration. So we cannot put the presigned URL into attachment permalink.

If we set the attachment permalink like <http://localhost:8090/attachments/{attachment.metadata.name}/{attachment.spec.displayName} and redirect to presigned URL when accessing the permalink, the problem will be resolved.

References

• halo/api/src/main/java/run/halo/app/core/extension/attachment/endpoint/AttachmentHandler.java

  Line 31 in 25086ee

  default Mono<URI> getSharedURL(Attachment attachment,

• https://docs.aws.amazon.com/AmazonS3/latest/userguide/ShareObjectPreSignedURL.html
• cloudflare R2 无法正确获取文件访问地址 plugin-s3#177

Additional information

/kind feature
/area core

[guqing]

目前上传完附件之后总是需要轮训等待链接才行包括 vscode halo 插件这些实现，但是这样例如 PicGo 这些工具上传之后将无法显示图片，如果实现了此功能是否就可以不需要轮训等待 permalink 了

[JohnNiang]

目前上传完附件之后总是需要轮训等待链接才行包括 vscode halo 插件这些实现，但是这样例如 PicGo 这些工具上传之后将无法显示图片，如果实现了此功能是否就可以不需要轮训等待 permalink 了

Halo Core 可以先提供这个能力，最终是否使用这种链接，完全取决于插件。例如 S3 插件就可以在 AttachmentHandler#getPermalink 方法中返回这样的附件链接形式。但是，permalink 仍然是异步设置的，可能还是无法解决轮训等待 permalink 的问题。