2

以下のようにエラーをキャッチしました。

INFO     ~ module.py:639] default: "HEAD /_ah/gcs/app_default_bucket/multibytes.txt HTTP/1.1" 404 -
ERROR    ~ gcs.py:99] Expect status [200] from Google Storage. But got status 404.
Path: '/app_default_bucket/multibytes.txt'.
Request headers: None.
Response headers: {'date': 'Mon, 07 Jul 2014 12:59:44 GMT', 'server': 'Development/2.0', 'connection': 'close'}.
Body: ''.
Extra info: None.
Traceback (most recent call last):
  File "/gcs.py", line 97, in status
        stat = gcs.stat("/%s/%s" % (b,nm))
  File "/cloudstorage/cloudstorage_api.py", line 142, in stat
        body=content)
  File "/cloudstorage/errors.py", line 132, in check_status
        raise NotFoundError(msg)
NotFoundError: Expect status [200] from Google Storage. But got status 404.
Path: '/app_default_bucket/multibytes.txt'.
Request headers: None.
Response headers: {'date': 'Mon, 07 Jul 2014 12:59:44 GMT', 'server': 'Development/2.0', 'connection': 'close'}.
Body: ''.
Extra info: None.

たとえば、これは私のカスタム GCS cliet クラスです。

# encoding: utf-8

import cloudstorage as gcs

class mycustomgcsclient:

  #...

  def create(self,name,data,**options):
    options['retry_params'] = gcs.RetryParams(backoff_factor=1.1)

    if not options.get('content_type'):
      options['content_type'] = 'octet-stream'

    if isintance(name,unicode):
      name = name.encode('utf-8')

    path = '/mybucketname/%s' % name
    try:
      with gcs.open(path,'w',**options) as f:
        f.write(data)
      return True
    except Exception as e:
      logging.exception(e)

    return False

if __name__=='__main__':
  data = 'some data ...¥n'

  filename = 'somedir/%s' % u'sample.txt'
  mycustomgcsclient().create(filename,data) # no error occured.

  filename = 'somedir/%s' % u'あいうえお.txt'
  mycustomgcsclient().create(filename,data) # error occured in this line.

マルチバイトのファイル名のみを使用すると、上記のエラーが発生しました。

ascii のファイル名を使用してもエラーは発生しませんでした。

https://developers.google.com/appengine/docs/python/googlecloudstorageclient/downloadで提供された「GCS クライアント ライブラリ (Python)」を使用しています。

私の dev_appserver.py のバージョンは Development SDK 1.9.6 で、これは MacOS X Marve で動作しています..(? 忘れました)。

いくつかの解決策はありますか？

4

1 に答える 1

3

urllib.quote()名前をutf8にエンコードした後、名前を呼び出す必要があるかもしれません。

マルチバイトのファイル名を使用して適切に動作するGCS Python デモ ( http://appengine-gcs-client.googlecode.com/svn/trunk/python/demo/main.py ) の修正版を次に示します。

# Copyright 2012 Google Inc. All Rights Reserved.
# encoding: utf-8

"""A modified version of the sample app that uses GCS client to operate on
   bucket and file.
"""

import logging
import os
import cloudstorage as gcs
import webapp2
import urllib

from google.appengine.api import app_identity

my_default_retry_params = gcs.RetryParams(initial_delay=0.2,
                                          max_delay=5.0,
                                          backoff_factor=2,
                                          max_retry_period=15)
gcs.set_default_retry_params(my_default_retry_params)


class MainPage(webapp2.RequestHandler):
  """Main page for GCS demo application."""

  def get(self):
    bucket_name = os.environ.get('BUCKET_NAME',
                                 app_identity.get_default_gcs_bucket_name())

    self.response.headers['Content-Type'] = 'text/plain'
    self.response.write('Demo GCS Application running from Version: '
                        + os.environ['CURRENT_VERSION_ID'] + '\n')
    self.response.write('Using bucket name: ' + bucket_name + '\n\n')

    bucket = '/' + bucket_name
    filename = bucket + '/' + urllib.quote(u'あいうえお.txt'.encode('utf8'))
    self.tmp_filenames_to_clean_up = []

    try:
      self.create_file(filename)
      self.response.write('\n\n')

      self.read_file(filename)
      self.response.write('\n\n')

    except Exception, e:
      logging.exception(e)
      self.delete_files()
      self.response.write('\n\nThere was an error running the demo! '
                          'Please check the logs for more details.\n')

    else:
      self.delete_files()
      self.response.write('\n\nThe demo ran successfully!\n')

  def create_file(self, filename):
    """Create a file.

    The retry_params specified in the open call will override the default
    retry params for this particular file handle.

    Args:
      filename: filename.
    """
    self.response.write('Creating file %s\n' %
                        urllib.unquote(filename).decode('utf-8'))

    write_retry_params = gcs.RetryParams(backoff_factor=1.1)
    gcs_file = gcs.open(filename,
                        'w',
                        content_type='text/plain',
                        options={'x-goog-meta-foo': 'foo',
                                 'x-goog-meta-bar': 'bar'},
                        retry_params=write_retry_params)
    gcs_file.write('some data ...¥n\n')
    gcs_file.close()
    self.tmp_filenames_to_clean_up.append(filename)


  def read_file(self, filename):
    self.response.write('File Content:\n')

    gcs_file = gcs.open(filename)
    self.response.write(gcs_file.readline())
    gcs_file.close()

  def delete_files(self):
    self.response.write('Deleting files...\n')
    for filename in self.tmp_filenames_to_clean_up:
      self.response.write('Deleting file %s\n' %
                          urllib.unquote(filename).decode('utf-8'))
      try:
        gcs.delete(filename)
      except gcs.NotFoundError:
        pass

app = webapp2.WSGIApplication([('/', MainPage)],
                              debug=True)
于 2014-07-08T22:49:36.520 に答える