设置Firebase存储文件大小和文件编号限制

要限制上载的大小,请参见 example from the documentation :

service firebase.storage {
 match /b/{bucket}/o {
   match /images {
     // Cascade read to any image type at any path
     match /{allImages=**} {
       allow read;
     }

     // Allow write files to the path "images/*", subject to the constraints:
     // 1) File is less than 5MB
     // 2) Content type is an image
     // 3) Uploaded content type matches existing content type
     // 4) File name (stored in imageId wildcard variable) is less than 32 characters
     match /{imageId} {
       allow write: if request.resource.size < 5 * 1024 * 1024
                    && request.resource.contentType.matches('image/.*')
                    && request.resource.contentType == resource.contentType
                    && imageId.size() < 32
     }
   }
 }
}

无法使用安全规则限制文件的数量,因此您必须查看以下解决方法:

• https://groups.google.com/forum/#!topic/firebase-talk/ZtJPcEJr0Mc (似乎暗示这是可能的,但我从未尝试过)
• limit number of children with storage rules
• Limit number of files in a firebase storage path