Get best of the week

How to kill a lot of time on a small script or the history of one pull request

With this note, I want to show once again that estimating the time for a task is a non-trivial problem. Even the elementary tasks of writing a 15-line script can stretch for several hours.


I needed to duplicate information from markdown notes into a telegram channel. It seemed to be something to rassusolivat - Ctrl+Cand Ctrl+Vto help. However, a small nuance was found out: markdown in the cart is not quite complete and the [text](http://example.com) client does not support links in this format . Okay, I thought, let's try to do something about it.



Trying to beat melee



Edit links with your hands, especially when there are several of them - rather dreary. Especially considering the bug of the desktop client , because of which it is impossible to edit pending messages. It’s possible to transfer from a tablet, but it’s even more stressful.


, ? : . , .


xclip, . :


text/plain
UTF8_STRING
STRING
TEXT
application/x-td-field-text
application/x-td-field-tags

, Firefox:


text/html
text/_moz_htmlcontext
text/_moz_htmlinfo
UTF8_STRING
COMPOUND_TEXT
TEXT
STRING
text/plain;charset=utf-8
text/plain
text/x-moz-url-priv

- Libre Office Writer:


application/x-openoffice-embed-source-xml;windows_formatname="Star Embed Source (XML)"
text/rtf
text/richtext
text/html
text/plain;charset=utf-16
application/x-openoffice-objectdescriptor-xml;windows_formatname="Star Object Descriptor (XML)";classname="8BC6B165-B1B2-4EDD-aa47-dae2ee689dd6";typename="LibreOffice 6.0 Text Document";viewaspect="1";width="16999";height="2995";posx="0";posy="0"
text/plain;charset=utf-8
UTF8_STRING
STRING
application/x-libreoffice-internal-id-5387

, , . , , . , -, , - , Qt , , - . 5 , - .




-, , . , , , . . .


, , . ? PyPI 31 "telegram". Telethon — , , , , , , , MTProto .


, . , , , .


from telethon.sync import TelegramClient
import socks

api_id = 11111
api_hash = '...'
proxy=(socks.SOCKS4, '127.0.0.1', 9050)

with TelegramClient('anon', api_id, api_hash, proxy=proxy, timeout=60) as client:
    print(client.get_me().stringify())

… - , . , HACKERMAN, . , .



We need to do deeper


, , Tor, :


$ curl -XGET httpbin.org/ip --socks5 localhost:9050

, — . , , Telethon. ? PySocks. , -. , . ...


Traceback (most recent call last):
  File "test.py", line 110, in <module>
    print("HTTP: " + opener.open("http://httpbin.org/ip").read().decode())
  File "/usr/lib/python3.6/urllib/request.py", line 526, in open
    response = self._open(req, data)
  File "/usr/lib/python3.6/urllib/request.py", line 544, in _open
    '_open', req)
  File "/usr/lib/python3.6/urllib/request.py", line 504, in _call_chain
    result = func(*args)
  File "test.py", line 94, in http_open
    return self.do_open(build, req)
  File "/usr/lib/python3.6/urllib/request.py", line 1318, in do_open
    encode_chunked=req.has_header('Transfer-encoding'))
  File "/usr/lib/python3.6/http/client.py", line 1254, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1300, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1249, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/usr/lib/python3.6/http/client.py", line 1036, in _send_output
    self.send(msg)
  File "/usr/lib/python3.6/http/client.py", line 974, in send
    self.connect()
  File "test.py", line 55, in connect
    ((socket.IPPROTO_TCP, socket.TCP_NODELAY, 1),))
  File "/usr/lib/python3/dist-packages/socks.py", line 200, in create_connection
    proxy_username, proxy_password)
  File "/usr/lib/python3/dist-packages/socks.py", line 322, in set_proxy
    username.encode() if username else None,
AttributeError: 'int' object has no attribute 'encode'

… ? https , ! … 6 ? :(


15-20 - , — , . -c , . : , .


, , , . ? , - Telethon? , , . -:


DEBUG:telethon.network.mtprotosender:Connection attempt 2...
WARNING:telethon.network.mtprotosender:Attempt 2 at connecting failed: ProxyConnectionError: Error connecting to SOCKS4 proxy 127.0.0.1:9050: [Errno 115] Operation now in progress

? EINPROGRESS, connect. , , ( ) , . : Tor . , 10- , 5 , …


, , , , , -. — Telethon. Telethon PySocks.


-


: -. — , , . Telethon . : , . , , . : - Telethon.



, - , , : . , .


- s.setblocking(False)
+ s.settimeout(timeout)

, , , . , , PR.




, , ? - , , . , , , . - : , :



api_key api_hash, /, ? , Telethon — . , ? , ? - ?


( ) Vault, , , … , , . . :


?)

...



… keyring. plain-text, , . .



, , — , — , , . 50 , 10, — , . - .


, , - , . !

More articles:


All Articles