def test_streaming_response(self):
r = StreamingHttpResponse(iter(['hello', 'world']))
# iterating over the response itself yields bytestring chunks.
chunks = list(r)
self.assertEqual(chunks, [b'hello', b'world'])
for chunk in chunks:
self.assertIsInstance(chunk, six.binary_type)
# and the response can only be iterated once.
self.assertEqual(list(r), [])
# even when a sequence that can be iterated many times, like a list,
# is given as content.
r = StreamingHttpResponse(['abc', 'def'])
self.assertEqual(list(r), [b'abc', b'def'])
self.assertEqual(list(r), [])
# streaming responses don't have a `content` attribute.
self.assertFalse(hasattr(r, 'content'))
# and you can't accidentally assign to a `content` attribute.
with self.assertRaises(AttributeError):
r.content = 'xyz'
# but they do have a `streaming_content` attribute.
self.assertTrue(hasattr(r, 'streaming_content'))
# that exists so we can check if a response is streaming, and wrap or
# replace the content iterator.
r.streaming_content = iter(['abc', 'def'])
r.streaming_content = (chunk.upper() for chunk in r.streaming_content)
self.assertEqual(list(r), [b'ABC', b'DEF'])
# coercing a streaming response to bytes doesn't return a complete HTTP
# message like a regular response does. it only gives us the headers.
r = StreamingHttpResponse(iter(['hello', 'world']))
self.assertEqual(
six.binary_type(r), b'Content-Type: text/html; charset=utf-8')
# and this won't consume its content.
self.assertEqual(list(r), [b'hello', b'world'])
# additional content cannot be written to the response.
r = StreamingHttpResponse(iter(['hello', 'world']))
with self.assertRaises(Exception):
r.write('!')
# and we can't tell the current position.
with self.assertRaises(Exception):
r.tell()
r = StreamingHttpResponse(iter(['hello', 'world']))
self.assertEqual(r.getvalue(), b'helloworld')
def downloadreport(request):
filename = report_name # 所生成的word文档需要以.docx结尾，文档格式需要
filepath = path_name
template_path = os.getcwd() + '/test.docx' #加载模板文件
template = DocxTemplate(template_path)
context = {
'text': '哈哈哈，来啦',
't1': '燕子',
't2': '杨柳',
't3': '桃花',
't4': '针尖',
't5': '头涔涔',
't6': '泪潸潸',
't7': '茫茫然',
't8': '伶伶俐俐',
'picture1': InlineImage(template,
img_name,
width=Mm(80),
height=Mm(60)),
}
user_labels = ['姓名', '年龄', '性别', '入学日期']
context['user_labels'] = user_labels
user_dict1 = {'number': 1, 'cols': ['林小熊', '27', '男', '2019-03-28']}
user_dict2 = {'number': 2, 'cols': ['林小花', '27', '女', '2019-03-28']}
user_list = []
user_list.append(user_dict1)
user_list.append(user_dict2)
context['user_list'] = user_list
template.render(context)
template.save(os.path.join(filepath, filename))
response = StreamingHttpResponse(
read_file(os.path.join(filepath, filename), 512))
# response['Content-Type'] = 'application/msword' #msword是输出word文件
response = HttpResponse(content_type='application/pdf')
response['Content-Disposition'] = 'attachment;filename="{}"'.format(
filename)
# time.sleep(10)
buffer = BytesIO()
p = canvas.Canvas(buffer)
p.save()
pdf = buffer.getvalue()
buffer.close()
response.write(pdf)
return response
def test_streaming_response(self):
r = StreamingHttpResponse(iter(["hello", "world"]))
# iterating over the response itself yields bytestring chunks.
chunks = list(r)
self.assertEqual(chunks, [b"hello", b"world"])
for chunk in chunks:
self.assertIsInstance(chunk, six.binary_type)
# and the response can only be iterated once.
self.assertEqual(list(r), [])
# even when a sequence that can be iterated many times, like a list,
# is given as content.
r = StreamingHttpResponse(["abc", "def"])
self.assertEqual(list(r), [b"abc", b"def"])
self.assertEqual(list(r), [])
# iterating over Unicode strings still yields bytestring chunks.
r.streaming_content = iter(["hello", "café"])
chunks = list(r)
# '\xc3\xa9' == unichr(233).encode('utf-8')
self.assertEqual(chunks, [b"hello", b"caf\xc3\xa9"])
for chunk in chunks:
self.assertIsInstance(chunk, six.binary_type)
# streaming responses don't have a `content` attribute.
self.assertFalse(hasattr(r, "content"))
# and you can't accidentally assign to a `content` attribute.
with self.assertRaises(AttributeError):
r.content = "xyz"
# but they do have a `streaming_content` attribute.
self.assertTrue(hasattr(r, "streaming_content"))
# that exists so we can check if a response is streaming, and wrap or
# replace the content iterator.
r.streaming_content = iter(["abc", "def"])
r.streaming_content = (chunk.upper() for chunk in r.streaming_content)
self.assertEqual(list(r), [b"ABC", b"DEF"])
# coercing a streaming response to bytes doesn't return a complete HTTP
# message like a regular response does. it only gives us the headers.
r = StreamingHttpResponse(iter(["hello", "world"]))
self.assertEqual(six.binary_type(r), b"Content-Type: text/html; charset=utf-8")
# and this won't consume its content.
self.assertEqual(list(r), [b"hello", b"world"])
# additional content cannot be written to the response.
r = StreamingHttpResponse(iter(["hello", "world"]))
with self.assertRaises(Exception):
r.write("!")
# and we can't tell the current position.
with self.assertRaises(Exception):
r.tell()
r = StreamingHttpResponse(iter(["hello", "world"]))
self.assertEqual(r.getvalue(), b"helloworld")
def test_streaming_response(self):
r = StreamingHttpResponse(iter(["hello", "world"]))
# iterating over the response itself yields bytestring chunks.
chunks = list(r)
self.assertEqual(chunks, [b"hello", b"world"])
for chunk in chunks:
self.assertIsInstance(chunk, bytes)
# and the response can only be iterated once.
self.assertEqual(list(r), [])
# even when a sequence that can be iterated many times, like a list,
# is given as content.
r = StreamingHttpResponse(["abc", "def"])
self.assertEqual(list(r), [b"abc", b"def"])
self.assertEqual(list(r), [])
# iterating over strings still yields bytestring chunks.
r.streaming_content = iter(["hello", "café"])
chunks = list(r)
# '\xc3\xa9' == unichr(233).encode()
self.assertEqual(chunks, [b"hello", b"caf\xc3\xa9"])
for chunk in chunks:
self.assertIsInstance(chunk, bytes)
# streaming responses don't have a `content` attribute.
self.assertFalse(hasattr(r, "content"))
# and you can't accidentally assign to a `content` attribute.
with self.assertRaises(AttributeError):
r.content = "xyz"
# but they do have a `streaming_content` attribute.
self.assertTrue(hasattr(r, "streaming_content"))
# that exists so we can check if a response is streaming, and wrap or
# replace the content iterator.
r.streaming_content = iter(["abc", "def"])
r.streaming_content = (chunk.upper() for chunk in r.streaming_content)
self.assertEqual(list(r), [b"ABC", b"DEF"])
# coercing a streaming response to bytes doesn't return a complete HTTP
# message like a regular response does. it only gives us the headers.
r = StreamingHttpResponse(iter(["hello", "world"]))
self.assertEqual(bytes(r), b"Content-Type: text/html; charset=utf-8")
# and this won't consume its content.
self.assertEqual(list(r), [b"hello", b"world"])
# additional content cannot be written to the response.
r = StreamingHttpResponse(iter(["hello", "world"]))
with self.assertRaises(Exception):
r.write("!")
# and we can't tell the current position.
with self.assertRaises(Exception):
r.tell()
r = StreamingHttpResponse(iter(["hello", "world"]))
self.assertEqual(r.getvalue(), b"helloworld")
def export_data_full(self):
# @todo: use cache (already existing files)
# @todo: serve ZIP file as StreamingHttpResponse
data = _export_data(limit=int(self.GET.get('limit', 999999999)),
since=self.GET.get('since', None),
to=self.GET.get('to', None))
if self.GET.get('stream', None) is not None:
# Save data to local file
data_export = json.dumps(data, default=_json_serial)
export_filename = 'updates_{}_{}_{}.json'.format(
data['export_since'].strftime('%s'),
data['export_to'].strftime('%s'),
data['last_update'].strftime('%s'))
# Check if a dump already exists, otherwise create it
export_fp = 'media/data/export/{}'.format(export_filename)
if os.path.isfile(export_fp) is False:
with open(export_fp, 'w', encoding="utf8") as f:
f.write(data_export)
# Prepare and serve response
response = StreamingHttpResponse(
open('media/data/export/{}'.format(export_filename)),
status=200,
content_type='application/octet-stream')
response['Cache-Control'] = 'no-cache'
response['Content-Disposition'] = 'attachment; filename={};'.format(
export_filename)
return response
if self.GET.get('f', '').lower() == 'zip':
exp_filename = "patrowlhears_datadump_{}".format(
datetime.datetime.now().strftime("%Y%m%d%H%M%S%f")[:-3])
in_memory = BytesIO()
zip = ZipFile(in_memory, "a")
zip.writestr("all.json",
json.dumps(data, sort_keys=True, default=_json_serial))
zip.writestr(
"vulns.json",
json.dumps({'vulns': data['vulns']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"exploits.json",
json.dumps({'exploits': data['exploits']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"threats.json",
json.dumps({'threats': data['threats']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"kb_cwe.json",
json.dumps({'kb_cwe': data['kb_cwe']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"kb_cpe.json",
json.dumps({'kb_cpe': data['kb_cpe']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"kb_cve.json",
json.dumps({'kb_cve': data['kb_cve']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"kb_vendor.json",
json.dumps({'kb_vendor': data['kb_vendor']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"kb_product.json",
json.dumps({'kb_product': data['kb_product']},
sort_keys=True,
default=_json_serial))
zip.writestr(
"kb_product_version.json",
json.dumps({'kb_product_version': data['kb_product_version']},
sort_keys=True,
default=_json_serial))
# fix for Linux zip files read in Windows
for file in zip.filelist:
file.create_system = 0
zip.close()
response = HttpResponse(content_type="application/zip")
response["Content-Disposition"] = "attachment; filename={}.zip".format(
exp_filename)
in_memory.seek(0)
response.write(in_memory.read())
return response
else:
return JsonResponse(data, safe=False)