从Google API断续更新中获取未经授权的401 [英] Getting 401 Unauthorized from Google API Resumable Update

问题描述

我正在尝试将任意文件上传到Google Docs集成到现有应用程序中.在强制使用可恢复上传之前，此方法可以正常工作.我正在使用Java客户端库.

I am trying to integrate upload of arbitrary files to Google Docs into an existing application. This used to work before using resumable upload became mandatory. I am using Java client libraries.

该应用程序分两个步骤进行上传: -获取文件的resourceId -上传数据

The application is doing the upload in 2 steps: - get the resourceId of the file - upload the data

要获取resourceId，我正在上传一个大小为0的文件(即Content-Length = 0).我在可恢复的URL中传递?convert = false(即

To get the resourceId I am uploading a 0-size file (i.e. Content-Length=0). I am passing ?convert=false in the resumable URL (i.e. https://docs.google.com/feeds/upload/create-session/default/private/full?convert=false).

我将"application/octet-stream"作为内容类型传递.这似乎可行，尽管我确实获得了不同的resourceIds-用于图像之类的"file:..." resourceIds，但是对于PDF却是"pdf:...." resourceIds.

I am passing "application/octet-stream" as content-type. This seems to work, though I do get different resourcesIds - "file:..." resourceIds for things like images, but "pdf:...." resourceIds for PDFs.

第二步基于先前获得的resourceId构造URL并执行搜索(getEntry).该网址的格式为 https://docs.google.com/feeds/default/private/full/file％3A .....

The second step constructs a URL based on the resourceId obtained previously and performs a search (getEntry). The URL is in the form of https://docs.google.com/feeds/default/private/full/file%3A.....

找到该条目后，将使用ResumableGDataFileUploader使用要上传的文件中的实际数据来更新内容(0字节文件).构建ResumableGDataFileUploader实例时，此操作失败，并显示401未经授权的响应.

Once the entry is found the ResumableGDataFileUploader is used to update the content (0-byte file) with the actual data from the file being uploaded. This operation fails with 401 Unauthorized response when building ResumableGDataFileUploader instance.

我已经尝试使用?convert = false以及?new-revision = true了，并且两者都同时使用.结果是一样的.

I've tried with ?convert=false as well as ?new-revision=true and both of these at the same time. The result is the same.

相关代码段:

MediaFileSource mediaFile = new MediaFileSource(
    tempFile, "application/octet-stream");

final ResumableGDataFileUploader.Builder builder = 
    new ResumableGDataFileUploader.Builder(client, mediaFile, documentListEntry);
builder.executor(MoreExecutors.sameThreadExecutor());
builder.requestType(ResumableGDataFileUploader.RequestType.UPDATE);

// This is where it fails
final ResumableGDataFileUploader resumableGDataFileUploader = builder.build();
resumableGDataFileUploader.start();

return tempFile.length();

客户端"是DocsService的实例，配置为使用OAuth.用于在给定代码段之前立即找到"documentListEntry".

The "client" is an instance of DocsService, configured to use OAuth. It is used to find "documentListEntry" immediately before the given piece of code.

我必须明确指定请求类型，因为似乎客户端库代码中包含一个导致更新现有条目"的情况的NullPointerException的错误.

I had to explicitly specify request type, since it seems the client library code contains a bug causing NullPointerException for "update existing entry" case.

我怀疑该问题特别是在一系列操作中(上传0字节文件以获取resourceId，然后使用实际文件进行更新)，但我不知道为什么它不起作用.

I have a suspicion that the issue is specifically in the sequence of actions (upload 0-byte file to get the resourceId, then update with actual file) but I can't figure out why it doesn't work.

请帮助?

推荐答案

此代码段适用于使用OAuth 1.0和OAuth 2.0的我:

This code snippet works for me using OAuth 1.0 and OAuth 2.0:

static void uploadDocument(DocsService client) throws IOException, ServiceException,
    InterruptedException {
  ExecutorService executor = Executors.newFixedThreadPool(10);

  File file = new File("<PATH/TO/FILE>");
  String mimeType = DocumentListEntry.MediaType.fromFileName(file.getName()).getMimeType();

  DocumentListEntry documentEntry = new DocumentListEntry();
  documentEntry.setTitle(new PlainTextConstruct("<DOCUMENT TITLE>"));

  int DEFAULT_CHUNK_SIZE = 2 * 512 * 1024;
  ResumableGDataFileUploader.Builder builder =
      new ResumableGDataFileUploader.Builder(
          client,
          new URL(
              "https://docs.google.com/feeds/upload/create-session/default/private/full?convert=false"),
          new MediaFileSource(file, mimeType), documentEntry).title(file.getName())
          .requestType(RequestType.INSERT).chunkSize(DEFAULT_CHUNK_SIZE).executor(executor);

  ResumableGDataFileUploader uploader = builder.build();
  Future<ResponseMessage> msg = uploader.start();
  while (!uploader.isDone()) {
    try {
      Thread.sleep(100);
    } catch (InterruptedException ie) {
      throw ie; // rethrow
    }
  }

  DocumentListEntry uploadedEntry = uploader.getResponse(DocumentListEntry.class);
  // Print the document's ID.
  System.out.println(uploadedEntry.getId());
  System.out.println("Upload is done!");
}

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