async def send(self) -> str:
async with aiohttp.ClientSession() as client_session:
async with client_session.post(self.backend, data=self.request) as response:
if response.status != 200:
raise aiohttp.HttpProcessingError(response.status)
data = await response.read()
data = data.decode("utf-8")
return data.replace(data[:16], "") # remove token
def get_flag(base_url, cc):
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
resp = yield from aiohttp.request('GET', url)
if resp.status == 200:
image = yield from resp.read()
return image
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status, message=resp.reason, headers=resp.headers)
async def get_flag(session, base_url, cc): # <2>
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
async with session.get(url) as resp:
if resp.status == 200:
return await resp.read()
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(
code=resp.status, message=resp.reason,
headers=resp.headers)
async def download():
filename = pathlib.Path(unidata.URL).name
spinner = asyncio.ensure_future(spin('downloading ' + filename))
async with aiohttp.request('GET', unidata.URL) as resp:
if resp.status != 200:
raise aiohttp.HttpProcessingError(
code=resp.status, message=resp.reason,
headers=resp.headers)
with open(filename, 'wb') as fd:
fd.write(await resp.read())
spinner.cancel()
def get_flag(base_url, cc: str):
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
resp = yield from aiohttp.ClientSession().get(url)
if resp.status == 200:
image = yield from resp.read()
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
headers=resp.headers)
async def get_flag(session, base_url, cc):
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
async with session.get(url) as resp:
if resp.status == 200:
return await resp.read()
# 真正执行I/O操作的是最内层的普通的子生成器（通过yield from结构委托给asyncio包或第三方库中的协程）
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
header=resp.headers)
def get_flag(base_url, cc): # ➋ get_flag 协程有三种返回结果：返回下载得到的图像；HTTP 响应码为404 时，抛出web.HTTPNotFound 异常；返回其他HTTP 状态码时，抛出aiohttp.HttpProcessingError异常。
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
resp = yield from aiohttp.request('GET', url)
if resp.status == 200:
image = yield from resp.read()
return image
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(
code=resp.status, message=resp.reason,
headers=resp.headers)
async def get_flag(base_url, cc): # <2>
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
with closing(await aiohttp.request('GET', url)) as resp:
if resp.status == 200:
image = await resp.read()
return image
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
headers=resp.headers)
async def get_flag(cc):
url = '{}/{cc}/{cc}.gif'.format(BASE_URL, cc=cc.lower())
resp = await aiohttp.request('GET', url)
if resp.status == 200:
image = await resp.read()
return (image)
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
header=resp.headers)
def get_flag(cc):
url='{}/{cc}/{cc}.gif'.format(BASE_URL,cc=cc.lower())
print("request {}".format(cc))
resp=yield from aiohttp.request('GET',url)
if resp.status == 200:
image=yield from resp.read()
return image
elif resp.status == 404:
raise
else:
raise aiohttp.HttpProcessingError(code=resp.status,message=resp.reason,
headers=resp.headers)
async def get_flag(base_url, cc):
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
async with aiohttp.ClientSession() as sess:
resp = await sess.request('GET', url)
if resp.status == 200:
image = await resp.content.read()
return image
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
headers=resp.headers)
def get_flag(base_url, cc): # <2>
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
resp = yield from aiohttp.ClientSession().get(url)
with contextlib.closing(resp):
if resp.status == 200:
image = yield from resp.read()
return image
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
headers=resp.headers)
async def get_flag(base_url, cc): # <2>
url = '{}/{cc}/{cc}.gif'.format(base_url, cc=cc.lower())
async with aiohttp.ClientSession() as session:
with async_timeout.timeout(10):
async with session.get(url) as resp:
if resp.status == 200:
image = await resp.read() # <5>
return image
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
headers=resp.headers)
async def download(url):
"""Download file from URL, with activity feedback."""
spinner = asyncio.ensure_future(spin('downloading'))
resp = await aiohttp.request('GET', url)
async with resp:
if resp.status != 200:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
headers=resp.headers)
text = await resp.text()
spinner.cancel()
return text
def get_flag(base_url, cc):
"""
get_flag関数はダウンロードした画像のバイト列を返します。
HTTPステータスコードが404ならweb.HTTPNotFoundを、
それ以外のコードならaiohttp.HttpProcessingErrorをそれぞれ上げます。
"""
url = '{}/{cc}/{cc}.gif'.format(BASE_URL, cc=cc.lower())
resp = yield from aiohttp.request('GET', url)
if resp.status == 200:
image = yield from resp.read()
return image
elif resp.status == 404:
raise web.HTTPNotFound()
else:
raise aiohttp.HttpProcessingError(code=resp.status,
message=resp.reason,
headers=resp.headers)
async def GetFlag(flag):
"""
下载单面旗帜
:param flag: 旗帜缩写名
:return: 旗帜的数据
"""
downloadUrl = "{base}/{flag}/{flag}.gif".format(base=BASE_URL,
flag=flag.lower())
# response = yield from aiohttp.request("GET", downloadUrl) # 使用aiohttp.request会出现异常
response = await aiohttp.ClientSession().get(downloadUrl) # 将阻塞的操作交由协程完成
if response.status == 200:
image = await response.read() # 读取响应也是异步操作
return image
elif response.status == 404:
raise web.HTTPNotFound
else:
raise aiohttp.HttpProcessingError(code=response.status,
message=response.reason,
headers=response.headers)
def _request(self, method, url, *args, allow_403=False, **kwargs):
resp = yield from super()._request(method, url, *args, **kwargs)
# Check if Cloudflare anti-bot is on
if resp.status == 503 and resp.headers.get(
"Server") == "cloudflare-nginx":
return (yield from self.solve_cf_challenge(resp, **kwargs))
elif resp.status == 403 and resp.headers.get(
"Server") == "cloudflare-nginx" and not allow_403:
resp.close()
raise aiohttp.HttpProcessingError(
message=
'CloudFlare returned HTTP 403. Your IP could be banned on CF '
'or reCAPTCHA appeared. This error can be disabled with '
'allow_403=True flag in request parameters e.g. '
'session.get(url, allow_403=True).',
headers=resp.headers)
# Otherwise, no Cloudflare anti-bot detected
return resp
def raise_for_status(self):
if 400 <= self.status:
raise aiohttp.HttpProcessingError(code=self.status,
message=self.reason)
def function1755(self, arg1685, arg2326):
print('method = {!r}; path = {!r}; version = {!r}'.format(
arg1685.method, arg1685.var4483, arg1685.version))
var4483 = arg1685.var4483
if ((not (var4483.isprintable() and var4483.startswith('/')))
or ('/.' in var4483)):
print('bad path', repr(var4483))
var4483 = None
else:
var4483 = ('.' + var4483)
if (not os.var4483.exists(var4483)):
print('no file', repr(var4483))
var4483 = None
else:
var3608 = os.var4483.var3608(var4483)
if (not var4483):
raise aiohttp.HttpProcessingError(code=404)
for (var4700, var345) in arg1685.headers.items():
print(var4700, var345)
if (isdir and (not var4483.endswith('/'))):
var4483 = (var4483 + '/')
raise aiohttp.HttpProcessingError(code=302,
headers=(('URI', var4483),
('Location', var4483)))
var1054 = aiohttp.Response(self.writer,
200,
http_version=arg1685.version)
var1054.add_header('Transfer-Encoding', 'chunked')
var220 = arg1685.headers.get('accept-encoding', '').lower()
if ('deflate' in var220):
var1054.add_header('Content-Encoding', 'deflate')
var1054.add_compression_filter('deflate')
elif ('gzip' in var220):
var1054.add_header('Content-Encoding', 'gzip')
var1054.add_compression_filter('gzip')
var1054.add_chunking_filter(1025)
if var3608:
var1054.add_header('Content-type', 'text/html')
var1054.send_headers()
var1054.write(b'<ul>\r\n')
for var1442 in sorted(os.listdir(var4483)):
if (var1442.isprintable() and (not var1442.startswith('.'))):
try:
var4746 = var1442.encode('ascii')
except UnicodeError:
pass
else:
if os.var4483.var3608(os.var4483.join(
var4483, var1442)):
var1054.write(
((((b'<li><a href="' + var4746) + b'/">') +
var4746) + b'/</a></li>\r\n'))
else:
var1054.write(
((((b'<li><a href="' + var4746) + b'">') +
var4746) + b'</a></li>\r\n'))
var1054.write(b'</ul>')
else:
var1054.add_header('Content-type', 'text/plain')
var1054.send_headers()
try:
with open(var4483, 'rb') as var4024:
var3166 = var4024.read(8192)
while chunk:
var1054.write(var3166)
var3166 = var4024.read(8192)
except OSError:
var1054.write(b'Cannot open')
yield from var1054.write_eof()
if var1054.keep_alive():
self.keep_alive(True)
def handle_request(self, message, payload):
print('method = {!r}; path = {!r}; version = {!r}'.format(
message.method, message.path, message.version))
path = message.path
if (not (path.isprintable() and path.startswith('/')) or '/.' in path):
print('bad path', repr(path))
path = None
else:
path = '.' + path
if not os.path.exists(path):
print('no file', repr(path))
path = None
else:
isdir = os.path.isdir(path)
if not path:
raise aiohttp.HttpProcessingError(code=404)
for hdr, val in message.headers.items():
print(hdr, val)
if isdir and not path.endswith('/'):
path = path + '/'
raise aiohttp.HttpProcessingError(code=302,
headers=(('URI', path),
('Location', path)))
response = aiohttp.Response(self.writer,
200,
http_version=message.version)
response.add_header('Transfer-Encoding', 'chunked')
# content encoding
accept_encoding = message.headers.get('accept-encoding', '').lower()
if 'deflate' in accept_encoding:
response.add_header('Content-Encoding', 'deflate')
response.add_compression_filter('deflate')
elif 'gzip' in accept_encoding:
response.add_header('Content-Encoding', 'gzip')
response.add_compression_filter('gzip')
response.add_chunking_filter(1025)
if isdir:
response.add_header('Content-type', 'text/html')
response.send_headers()
response.write(b'<ul>\r\n')
for name in sorted(os.listdir(path)):
if name.isprintable() and not name.startswith('.'):
try:
bname = name.encode('ascii')
except UnicodeError:
pass
else:
if os.path.isdir(os.path.join(path, name)):
response.write(b'<li><a href="' + bname + b'/">' +
bname + b'/</a></li>\r\n')
else:
response.write(b'<li><a href="' + bname + b'">' +
bname + b'</a></li>\r\n')
response.write(b'</ul>')
else:
response.add_header('Content-type', 'text/plain')
response.send_headers()
try:
with open(path, 'rb') as fp:
chunk = fp.read(8192)
while chunk:
response.write(chunk)
chunk = fp.read(8192)
except OSError:
response.write(b'Cannot open')
yield from response.write_eof()
if response.keep_alive():
self.keep_alive(True)
def f(request):
raise aiohttp.HttpProcessingError(code=401,
headers=(('WWW-Authenticate',
'Basic'), ))
async def handle_request(self, message, payload):
print(
"method = {!r}; path = {!r}; version = {!r}".format(
message.method, message.path, message.version
)
)
path = message.path
if not (path.isprintable() and path.startswith("/")) or "/." in path:
print("bad path", repr(path))
path = None
else:
path = "." + path
if not os.path.exists(path):
print("no file", repr(path))
path = None
else:
isdir = os.path.isdir(path)
if not path:
raise aiohttp.HttpProcessingError(code=404)
for hdr, val in message.headers.items():
print(hdr, val)
if isdir and not path.endswith("/"):
path = path + "/"
raise aiohttp.HttpProcessingError(
code=302, headers=(("URI", path), ("Location", path))
)
response = aiohttp.Response(self.writer, 200, http_version=message.version)
response.add_header("Transfer-Encoding", "chunked")
# content encoding
accept_encoding = message.headers.get("accept-encoding", "").lower()
if "deflate" in accept_encoding:
response.add_header("Content-Encoding", "deflate")
response.add_compression_filter("deflate")
elif "gzip" in accept_encoding:
response.add_header("Content-Encoding", "gzip")
response.add_compression_filter("gzip")
response.add_chunking_filter(1025)
if isdir:
response.add_header("Content-type", "text/html")
response.send_headers()
response.write(b"<ul>\r\n")
for name in sorted(os.listdir(path)):
if name.isprintable() and not name.startswith("."):
try:
bname = name.encode("ascii")
except UnicodeError:
pass
else:
if os.path.isdir(os.path.join(path, name)):
response.write(
b'<li><a href="'
+ bname
+ b'/">'
+ bname
+ b"/</a></li>\r\n"
)
else:
response.write(
b'<li><a href="'
+ bname
+ b'">'
+ bname
+ b"</a></li>\r\n"
)
response.write(b"</ul>")
else:
response.add_header("Content-type", "text/plain")
response.send_headers()
try:
with open(path, "rb") as fp:
chunk = fp.read(8192)
while chunk:
response.write(chunk)
chunk = fp.read(8192)
except OSError:
response.write(b"Cannot open")
await response.write_eof()
if response.keep_alive():
self.keep_alive(True)
