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python - 从 python 上传 blob 到 BlobStore 在 http 上返回 500

转载 作者:太空宇宙 更新时间:2023-11-03 17:25:51 25 4
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我正在尝试从 python 将 blob 上传到 BlobStore,它在 https://...appspot.com 上工作。和 https://...com/但是当从 http 执行完全相同的代码时,它不起作用,并且 BlobStore 返回 500 错误。

我尝试过使连接始终安全,即使在不安全的情况下也是如此。

这是我的代码:

@staticmethod
def save_to_blobstore(_request, id, file_contents, file_type, file_name = 'fixmeh.png'):
upload_url = blobstore.create_upload_url('/upload-item/blob-key/{}'.format(id))

if upload_url.startswith('http://') and 'localhost.com' not in _request.get_host():
upload_url = 'https' + upload_url[4:]

# ----- CREATING FORMDATA -----
boundary = 'WebKitFormBoundaryE19zNvXGzXaLvS5C'
body = '\r\n'.join([
'--' + boundary,
'Content-Disposition: form-data; name="file"; filename="{}"'.format(file_name),
'Content-Type: {}'.format(file_type),
'',
file_contents,
'',
'--' + boundary + '--',
'',
])

headers = {
'Content-Type' : 'multipart/form-data; boundary={}'.format(boundary),
'User-Agent' : 'Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Firefox/31.0',
}

logging.critical('blobstore save')

# TODO Why the hell do we receive deadline limit exceeded?
request = urllib2.Request(upload_url)

# ----- FORCING SECURE CONNECTION EXCEPT ON LOCALHOST -----
if 'localhost.com' in _request.get_host():
conn = httplib.HTTPConnection(request.get_host(), timeout = 50)
else:
conn = httplib.HTTPSConnection(request.get_host(), timeout = 50)

conn._follow_redirects = True

logging.info(['upload_url', upload_url ])
logging.info(['get_host', request.get_host() ])
logging.info(['get_selector', request.get_selector() ])
conn.request('POST', request.get_selector(), body, headers)

try:
response = conn.getresponse()
response_body = response.read()

logging.info(response_body)

# TODO we need to have an exception if the response is not 200
except DeadlineExceededError:
logging.exception('Saving blob - DeadlineExceededError')
except:
logging.exception('Saving blob')

当通过 HTTP 执行时,这是 BlobStore 的返回,尽管它没有多大帮助。有没有办法在 https://console.developers.google.com/project/.../logs 中记录 blobstore 错误或其他任何地方。

<html><head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<title>500 Server Error</title></head>
<body text=#000000 bgcolor=#ffffff>
<h1>Error: Server Error</h1>
<h2>The server encountered an error and could not complete your request.
<p>Please retry your last submission.</p>
<p>If the problem persists, please contact the person responsible for the application you're using, or, if you are that person,
<a href="http://code.google.com/appengine/community.html">report</a> your
problem and mention this error message and the query that caused it.</h2>
</body></html>

你能帮我解释一下为什么它不能在 http 上工作但在 https 上工作吗? (注意它适用于 SDK 上的 http - 那里没有 ssl,这只发生在 appspot 上)

最佳答案

我使用此代码作为使用 webapp2 路由的完整上传 URL:

upload_url = create_upload_url(webapp2.uri_for('blob_update', _full=True))

处理程序使用名为路由的 webapp2:'blob_update'

class BlobUpdate(blobstore_handlers.BlobstoreUploadHandler):
""" has named route : blob_update :
webapp2.Route(r'/blob_update', handler='....BlobUpdate', name='blob_update') """

def post(self):
""" blob upload handler returns the new blobkey"""

blob_info = self.get_uploads('file')[0]
....

更多信息请参见:App Engine update blob

关于python - 从 python 上传 blob 到 BlobStore 在 http 上返回 500,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/32566051/

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