文档列表API文件上传失败时，文件大小比继续上传块大小更大

我试图得到一个Android应用使用文档列表API与谷歌文档/驱动互动：https://developers.google.com/google-apps/documents-list 文档列表API文件上传失败时，文件大小比继续上传块大小更大

我在跑使用GData可恢复上传协议上传文件有点麻烦，即： https://developers.google.com/google-apps/documents-list#uploading_a_new_document_or_file_with_both_metadata_and_content

我正在使用512KiB块大小。小于块大小的文件成功上传，但大于块大小的文件将在第一块完成之前失败。即使将块大小增加到1MiB或2MiB，情况也是如此。一个768KiB文件将失败，块大小为512KiB，但成功的块大小为1MiB。

大于块大小的文件确实超过了第一步，即将XML张贴到“可恢复的创建媒体”链接。然后我看到用于发送块的HttpContent实现的writeTo（）方法中抛出的SSLException。这通过异常FIRST块中途发生，例如：

javax.net.ssl.SSLException: Write error: ssl=0x2a6318: I/O error during system call, Broken pipe 
    at org.apache.harmony.xnet.provider.jsse.NativeCrypto.SSL_write(Native Method) 
    at org.apache.harmony.xnet.provider.jsse.OpenSSLSocketImpl$SSLOutputStream.write(OpenSSLSocketImpl.java:713) 
    at libcore.net.http.FixedLengthOutputStream.write(FixedLengthOutputStream.java:41) 
    at com.google.api.client.http.AbstractInputStreamContent.writeTo(AbstractInputStreamContent.java:89)

注意看上面的，我不得不实际拍摄的IOExceptions在我的writeTo（）方法（登录后他们他们重新抛出）。否则，由于内容被突然中断，我只会看到一个通用的“400错误请求”响应。我已经尝试了几种不同的测试设备，例如Galaxy Nexus（VZW/CDMA，4.0.2，股票），Droid4（Moto 2.3.6，股票）DroidX（股票）。

页眉上的要求上传第一个块：

Accept-Encoding: gzip 
Authorization: GoogleLogin auth=XXXXXXXXXXXXXXXXXXXXXXXXXXXXX 
Content-Length: 524288 
Content-Range: 0-524287/1635085 
Content-Type: image/png 
GData-Version: 3.0 
User-Agent: XXXXXXXXXXXXXX

感谢您的任何建议。

UPDATE：添加代码片段，这是PUT下一个块的位。

private boolean putNext() 
throws CancelException, DirectoryException { 
    try { 
     ByteArrayContent content = new ByteArrayContent(mediaType, buffer, 0, bufferLength); 

     HttpRequest request = conn.getHttpRequestFactory().buildPutRequest(new GenericUrl(nextLocation), content); 

     HttpHeaders requestHeaders = request.getHeaders(); 
     requestHeaders.setContentLength(String.valueOf(bufferLength)); 
     requestHeaders.setContentType(mediaType); 

     if (sent != 0 || bufferLength != size) { 
      // Only set content range when file will span multiple chunks. 
      requestHeaders.setContentRange(sent + "-" + (sent + bufferLength - 1) + "/" + size); 
     } 

     HttpResponse response = request.execute(); 

     sent += bufferLength; 
     bufferLength = 0; 

     HttpHeaders responseHeaders = response.getHeaders(); 

     int statusCode = response.getStatusCode(); 
     if (statusCode == GoogleDriveConnection.RESPONSE_308_RESUME_INCOMPLETE) { 
      nextLocation = responseHeaders.getLocation(); 
      return false; 
     } else if (statusCode >= 200 && statusCode < 400) { 
      Document responseDom = DomUtil.load(response.getContent()); 
      return true; 
     } else { 
      Log.w(LOG_TAG, "Google Drive upload error: Invalid response code to upload request: " + statusCode); 
      throw DirectoryException.networkErrorHost(null, catalog.getHostName()); 
     } 
    } catch (IOException ex) { 
     Log.w(LOG_TAG, "Google Drive write error.", ex); 
     throw DirectoryException.networkErrorHost(ex, catalog.getHostName()); 
    } catch (SAXException ex) { 
     throw DirectoryException.networkErrorHost(ex, catalog.getHostName()); 
    } 
}

另一个可能很重要的注意事项：SSLException失败是由存在Content-Range标头触发的。如果我忽略它，那么第一块大于块大小的文件将成功上传，没有例外。服务器返回201 Created，并创建截断512KiB大小的文件。

再次感谢！

更新2

我现在有一个可用的纯Java应用程序来证明这个问题。这被打包成一个包含库的Eclipse项目，但应该在其他地方使用。 http://android.nextapp.com/test/DriveUpload.zip

验证令牌需要测试它。它需要三个命令行参数来运行：

[文件名] [内容/类型] [的authToken]

（我目前正在削减从调试输出在真正的应用程序/粘贴authtokens）

这里的此应用程序的修整输出：

TOKEN=******** 
FILE=/tmp/1199Panigale.jpg 
Headers: POST Request 
-- User-Agent: DriveUpload 
-- GData-Version: 3.0 
-- Authorization: GoogleLogin auth=******** 
-- X-Upload-Content-Type: image/png 
-- X-Upload-Content-Length: 1635085 
[POST Request] -------------------------------------------------------- 
<entry xmlns="http://www.w3.org/2005/Atom"> 
<title>1199Panigale.jpg</title> 
</entry> 
Executing post request: https://docs.google.com/feeds/upload/create-session/default/private/full/folder%3Aroot/contents?convert=false 
Post complete, response=200 
Headers: POST Response 
-- Server: HTTP Upload Server Built on Apr 23 2012 11:11:29 (1335204689) 
-- Location: https://docs.google.com/feeds/upload/create-session/default/private/full/folder%3Aroot/contents?convert=false&upload_id=********2 
-- Date: Sat, 28 Apr 2012 04:51:47 GMT 
-- Pragma: no-cache 
-- Expires: Fri, 01 Jan 1990 00:00:00 GMT 
-- Cache-Control: no-cache, no-store, must-revalidate 
-- Content-Length: 0 
-- Content-Type: text/html 
Preparing PUT request #0 
Headers: Put Request 
-- User-Agent: DriveUpload 
-- GData-Version: 3.0 
-- Authorization: GoogleLogin auth=******** 
-- Content-Type: image/png 
-- Content-Range: 0-524287/1635085 
[writeTo] 
[getCotent] 
Read: 4096, total: 4096 
Read: 4096, total: 8192 
Read: 4096, total: 12288 
Read: 4096, total: 16384 

[---skip a few---] 

Read: 4096, total: 270336 
Read: 4096, total: 274432 
Read: 4096, total: 278528 
Read: 4096, total: 282624 
Read: 4096, total: 286720 
Read: 4096, total: 290816 
Apr 27, 2012 9:49:02 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute 
INFO: I/O exception (java.net.SocketException) caught when processing request: Broken pipe 
Apr 27, 2012 9:49:02 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute 
INFO: Retrying request 
[writeTo] 
[getCotent] 
Read: 4096, total: 4096 
Read: 4096, total: 8192 
Read: 4096, total: 12288 
Read: 4096, total: 16384 
Read: 4096, total: 20480 

[---skip a few---] 

Read: 4096, total: 274432 
Read: 4096, total: 278528 
Read: 4096, total: 282624 
Read: 4096, total: 286720 
Read: 4096, total: 290816 
Apr 27, 2012 9:49:02 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute 
INFO: I/O exception (java.net.SocketException) caught when processing request: Broken pipe 
Apr 27, 2012 9:49:02 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute 
INFO: Retrying request 
[writeTo] 
[getCotent] 
Read: 4096, total: 4096 
Read: 4096, total: 8192 
Read: 4096, total: 12288 
Read: 4096, total: 16384 
Read: 4096, total: 20480 

[---skip a few---] 

Read: 4096, total: 278528 
Read: 4096, total: 282624 
Read: 4096, total: 286720 
Read: 4096, total: 290816 
Read: 4096, total: 294912 
Apr 27, 2012 9:49:02 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute 
INFO: I/O exception (java.net.SocketException) caught when processing request: Broken pipe 
Apr 27, 2012 9:49:02 PM org.apache.http.impl.client.DefaultRequestDirector tryExecute 
INFO: Retrying request 
[writeTo] 
[getCotent] 
Read: 4096, total: 4096 
Read: 4096, total: 8192 
Read: 4096, total: 12288 
Read: 4096, total: 16384 
Read: 4096, total: 20480 

[---skip a few---] 

Read: 4096, total: 278528 
Read: 4096, total: 282624 
Read: 4096, total: 286720 
java.net.SocketException: Broken pipe 
    at java.net.SocketOutputStream.socketWrite0(Native Method) 
    at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109) 
    at java.net.SocketOutputStream.write(SocketOutputStream.java:153) 
    at sun.security.ssl.OutputRecord.writeBuffer(OutputRecord.java:314) 
    at sun.security.ssl.OutputRecord.write(OutputRecord.java:303) 
    at sun.security.ssl.SSLSocketImpl.writeRecordInternal(SSLSocketImpl.java:768) 
    at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:756) 
    at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:108) 
    at org.apache.http.impl.io.AbstractSessionOutputBuffer.write(AbstractSessionOutputBuffer.java:153) 
    at org.apache.http.impl.io.ContentLengthOutputStream.write(ContentLengthOutputStream.java:114) 
    at driveupload.UploadStream$1.writeTo(UploadStream.java:149) 
    at org.apache.http.entity.HttpEntityWrapper.writeTo(HttpEntityWrapper.java:96) 
    at org.apache.http.impl.client.EntityEnclosingRequestWrapper$EntityWrapper.writeTo(EntityEnclosingRequestWrapper.java:108) 
    at org.apache.http.impl.entity.EntitySerializer.serialize(EntitySerializer.java:120) 
    at org.apache.http.impl.AbstractHttpClientConnection.sendRequestEntity(AbstractHttpClientConnection.java:264) 
    at org.apache.http.impl.conn.AbstractClientConnAdapter.sendRequestEntity(AbstractClientConnAdapter.java:224) 
    at org.apache.http.protocol.HttpRequestExecutor.doSendRequest(HttpRequestExecutor.java:255) 
    at org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123) 
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:647) 
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:464) 
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820) 
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754) 
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:732) 
    at driveupload.DriveUpload.executeRequest(DriveUpload.java:71) 
    at driveupload.UploadStream.putNext(UploadStream.java:191) 
    at driveupload.UploadStream.write(UploadStream.java:225) 
    at java.io.OutputStream.write(OutputStream.java:116) 
    at driveupload.DriveUpload.test(DriveUpload.java:127) 
    at driveupload.DriveUpload.main(DriveUpload.java:44)

来源

2012-04-27 tliebeck

您可以与我们分享您的代码中可恢复上传的部分吗？另外，看看这个[回答]（http://stackoverflow.com/a/10195674/1106381），它显示了如何使用gdata-java-client库1.4.7版插入（或更新）一个新文件使用文档列表API。 – Alain 2012-04-27 15:49:12

@Alain，谢谢，添加了一段代码和一些更多的信息，请参阅编辑问题。我实际上并没有在其网站上使用gdata-java-client per语句，它不再被主动维护。 – tliebeck 2012-04-27 21:08:27

感谢您的代码片段，我会看看，并试图看看我能否找出问题来自哪里。此外，您是否可以确保在启动[可恢复上传请求]（http://goo.gl/HrMNk）时指定了“X-Upload-Content-Length”标题？最后，您可以查看[ResumableHttpUloadTask.upload]（http://code.google.com/p/gdata-java-client/source/browse/trunk/java/src/com/google/gdata/client /uploader/ResumableHttpUploadTask.java#191）方法来查看它是如何在我们的库中实现的（它仍然有一些发展:)）。 – Alain 2012-04-27 21:37:15

的问题原来是，我是无法前缀“字节”的“内容范围”标头。我不知道为什么我在前六次查找标题时都没有发现这一点，因为它与规范保持一致。 :)

感谢您的帮助，并抱歉打扰您与这个非问题。

虽然我注意到规范指出对PUT请求的响应将为下一次上载提供“位置”标头。我没有看到，但如果我坚持以前发布的位置，它工作正常。我的代码现在只需更新位置URL（如果提供了该位置URL），并继续以前发布的位置URL（如果没有）。

来源

2012-04-28 09:41:55 tliebeck

文档列表API文件上传失败时，文件大小比继续上传块大小更大

回答

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