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当我使用 Play Scala 和 Resumable.js 上传文件时，我找不到此错误的原因：

线程“application-akka.actor.default-dispatcher-3”：controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:44)

Some(resumableInfo) from resumableParams =>: ResumableInfo(authorName,1048576,1430174,1430174-AllegrofromDuetinCMajormp3,Allegro from Duet in C Major.mp3,Allegro from Duet in C Major.mp3,/Allegro from Duet in C Major.mp3.temp )

[error] p.c.s.n.PlayDefaultUpstreamHandler - Cannot invoke the action
java.io.FileNotFoundException: /Allegro from Duet in C Major.mp3.temp (Permission denied)
    at java.io.RandomAccessFile.open0(Native Method) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.open(RandomAccessFile.java:316) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:124) ~[na:1.8.0_71]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:46) ~[classes/:na]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:22) ~[classes/:na]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:408) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:407) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:533) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:530) ~[play_2.11-2.4.6.jar:2.4.6]
[error] application - 

! @6p27df40a - Internal server error, for (POST) [/resumable] ->

play.api.http.HttpErrorHandlerExceptions$$anon$1: Execution exception[[FileNotFoundException: /Allegro from Duet in C Major.mp3.temp (Permission denied)]]
    at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:265) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:191) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.GlobalSettings$class.onError(GlobalSettings.scala:179) [play_2.11-2.4.6.jar:2.4.6]
    at play.api.DefaultGlobal$.onError(GlobalSettings.scala:212) [play_2.11-2.4.6.jar:2.4.6]
    at play.api.http.GlobalSettingsHttpErrorHandler.onServerError(HttpErrorHandler.scala:94) [play_2.11-2.4.6.jar:2.4.6]
    at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:266) [play-netty-server_2.11-2.4.6.jar:2.4.6]
    at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:262) [play-netty-server_2.11-2.4.6.jar:2.4.6]
    at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:344) [scala-library-2.11.7.jar:na]
    at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:343) [scala-library-2.11.7.jar:na]
    at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) [scala-library-2.11.7.jar:na]
Caused by: java.io.FileNotFoundException: /Allegro from Duet in C Major.mp3.temp (Permission denied)
    at java.io.RandomAccessFile.open0(Native Method) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.open(RandomAccessFile.java:316) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:124) ~[na:1.8.0_71]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:46) ~[classes/:na]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:22) ~[classes/:na]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:408) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:407) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:533) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:530) ~[play_2.11-2.4.6.jar:2.4.6]

制作文件的代码是这样的......

def checkIfUploadFinished: Boolean = { val count: Int = Math.ceil(resumableTotalSize.toDouble / resumableChunkSize.toDouble).toInt 1.until(count) foreach { i: Int => if (!uploadedChunks.contains(i)) return false }

val file: File = new File(resumableFilePath)
val newPath: String = file.getAbsolutePath.substring(0, file.getAbsolutePath.length - ".temp".length)
file.renameTo(new File(newPath))
true

}

重新运行它给了我这个...

[error] p.c.s.n.PlayDefaultUpstreamHandler - Cannot invoke the action
java.io.FileNotFoundException: /Allegro from Duet in C Major.mp3.temp (Permission denied)
    at java.io.RandomAccessFile.open0(Native Method) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.open(RandomAccessFile.java:316) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:124) ~[na:1.8.0_71]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:46) ~[classes/:2.4.6]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:22) ~[classes/:2.4.6]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:408) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:407) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:533) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:530) ~[play_2.11-2.4.6.jar:2.4.6]
[error] application - 

! @6p2c3mpkb - Internal server error, for (POST) [/resumable] ->

play.api.http.HttpErrorHandlerExceptions$$anon$1: Execution exception[[FileNotFoundException: /Allegro from Duet in C Major.mp3.temp (Permission denied)]]
    at play.api.http.HttpErrorHandlerExceptions$.throwableToUsefulException(HttpErrorHandler.scala:265) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.http.DefaultHttpErrorHandler.onServerError(HttpErrorHandler.scala:191) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.GlobalSettings$class.onError(GlobalSettings.scala:179) [play_2.11-2.4.6.jar:2.4.6]
    at play.api.DefaultGlobal$.onError(GlobalSettings.scala:212) [play_2.11-2.4.6.jar:2.4.6]
    at play.api.http.GlobalSettingsHttpErrorHandler.onServerError(HttpErrorHandler.scala:94) [play_2.11-2.4.6.jar:2.4.6]
    at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:266) [play-netty-server_2.11-2.4.6.jar:2.4.6]
    at play.core.server.netty.PlayDefaultUpstreamHandler$$anonfun$3.applyOrElse(PlayDefaultUpstreamHandler.scala:262) [play-netty-server_2.11-2.4.6.jar:2.4.6]
    at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:344) [scala-library-2.11.7.jar:na]
    at scala.concurrent.Future$$anonfun$recoverWith$1.apply(Future.scala:343) [scala-library-2.11.7.jar:na]
    at scala.concurrent.impl.CallbackRunnable.run(Promise.scala:32) [scala-library-2.11.7.jar:na]
Caused by: java.io.FileNotFoundException: /Allegro from Duet in C Major.mp3.temp (Permission denied)
    at java.io.RandomAccessFile.open0(Native Method) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.open(RandomAccessFile.java:316) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:243) ~[na:1.8.0_71]
    at java.io.RandomAccessFile.<init>(RandomAccessFile.java:124) ~[na:1.8.0_71]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:46) ~[classes/:2.4.6]
    at controllers.Resumable$$anonfun$doPost$1.apply(Resumable.scala:22) ~[classes/:2.4.6]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:408) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.ActionBuilder$$anonfun$apply$16.apply(Action.scala:407) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:533) ~[play_2.11-2.4.6.jar:2.4.6]
    at play.api.mvc.Action$.invokeBlock(Action.scala:530) ~[play_2.11-2.4.6.jar:2.4.6]
4

1 回答 1

1

根据错误，您正在尝试将文件保存到/Allegro from Duet in C Major.mp3.temp，并且您没有打开该文件的权限。这是一件好事，允许用户将任意命名的文件上传到您的根文件系统将是一个严重的安全问题。事实上，无论如何，这可能是一个严重的安全问题，因为他们可以选择任何文件名，例如/etc/passwd，然后您知道，他们已经在您的系统上为自己创建了新的用户帐户。

您应该在临时目录中选择一个文件名，并避免使用与他们发送给您的文件名相同的文件名，因为这样可以避免一系列潜在的安全问题。更好的解决方案是使用文件名的哈希与用户的用户名相结合。所以你应该使用的文件是：

new File(someTempDirectory, username + "-" + file.getName.hashCode())
于 2016-02-03T03:01:00.903 回答