257 lines
6.9 KiB
Python
257 lines
6.9 KiB
Python
# -*- coding: UTF-8 -*-
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from __future__ import unicode_literals
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import re
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import json
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from time import time
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from random import random
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from contextlib import contextmanager
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from mimetypes import guess_type
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from os.path import basename
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import warnings
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import logging
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import requests
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from ._exception import (
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FBchatException,
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FBchatFacebookError,
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FBchatInvalidParameters,
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FBchatNotLoggedIn,
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FBchatPleaseRefresh,
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)
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try:
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from urllib.parse import urlencode, parse_qs, urlparse
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basestring = (str, bytes)
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except ImportError:
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from urllib import urlencode
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from urlparse import parse_qs, urlparse
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basestring = basestring
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# Python 2's `input` executes the input, whereas `raw_input` just returns the input
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try:
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input = raw_input
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except NameError:
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pass
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# Log settings
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log = logging.getLogger("client")
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log.setLevel(logging.DEBUG)
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# Creates the console handler
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handler = logging.StreamHandler()
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log.addHandler(handler)
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#: Default list of user agents
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USER_AGENTS = [
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"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36",
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"Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_3) AppleWebKit/601.1.10 (KHTML, like Gecko) Version/8.0.5 Safari/601.1.10",
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"Mozilla/5.0 (Windows NT 6.3; WOW64; ; NCT50_AAP285C84A1328) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.90 Safari/537.36",
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"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/22.0.1207.1 Safari/537.1",
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"Mozilla/5.0 (X11; CrOS i686 2268.111.0) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.57 Safari/536.11",
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"Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.6 (KHTML, like Gecko) Chrome/20.0.1092.0 Safari/536.6",
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]
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def now():
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return int(time() * 1000)
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def strip_json_cruft(text):
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"""Removes `for(;;);` (and other cruft) that preceeds JSON responses."""
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try:
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return text[text.index("{") :]
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except ValueError:
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raise FBchatException("No JSON object found: {!r}".format(text))
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def get_decoded_r(r):
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return get_decoded(r._content)
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def get_decoded(content):
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return content.decode("utf-8")
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def parse_json(content):
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try:
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return json.loads(content)
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except ValueError:
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raise FBchatFacebookError("Error while parsing JSON: {!r}".format(content))
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def digitToChar(digit):
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if digit < 10:
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return str(digit)
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return chr(ord("a") + digit - 10)
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def str_base(number, base):
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if number < 0:
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return "-" + str_base(-number, base)
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(d, m) = divmod(number, base)
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if d > 0:
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return str_base(d, base) + digitToChar(m)
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return digitToChar(m)
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def generateMessageID(client_id=None):
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k = now()
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l = int(random() * 4294967295)
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return "<{}:{}-{}@mail.projektitan.com>".format(k, l, client_id)
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def getSignatureID():
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return hex(int(random() * 2147483648))
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def generateOfflineThreadingID():
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ret = now()
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value = int(random() * 4294967295)
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string = ("0000000000000000000000" + format(value, "b"))[-22:]
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msgs = format(ret, "b") + string
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return str(int(msgs, 2))
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def handle_payload_error(j):
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if "error" not in j:
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return
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error = j["error"]
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if j["error"] == 1357001:
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error_cls = FBchatNotLoggedIn
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elif j["error"] == 1357004:
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error_cls = FBchatPleaseRefresh
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elif j["error"] in (1357031, 1545010, 1545003):
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error_cls = FBchatInvalidParameters
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else:
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error_cls = FBchatFacebookError
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# TODO: Use j["errorSummary"]
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# "errorDescription" is in the users own language!
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raise error_cls(
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"Error #{} when sending request: {}".format(error, j["errorDescription"]),
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fb_error_code=error,
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fb_error_message=j["errorDescription"],
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)
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def handle_graphql_errors(j):
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errors = []
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if j.get("error"):
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errors = [j["error"]]
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if "errors" in j:
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errors = j["errors"]
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if errors:
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error = errors[0] # TODO: Handle multiple errors
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# TODO: Use `summary`, `severity` and `description`
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raise FBchatFacebookError(
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"GraphQL error #{}: {} / {!r}".format(
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error.get("code"), error.get("message"), error.get("debug_info")
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),
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fb_error_code=error.get("code"),
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fb_error_message=error.get("message"),
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)
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def check_request(r):
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check_http_code(r.status_code)
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content = get_decoded_r(r)
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check_content(content)
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return content
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def check_http_code(code):
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msg = "Error when sending request: Got {} response.".format(code)
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if code == 404:
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raise FBchatFacebookError(
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msg + " This is either because you specified an invalid URL, or because"
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" you provided an invalid id (Facebook usually requires integer ids).",
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request_status_code=code,
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)
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if 400 <= code < 600:
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raise FBchatFacebookError(msg, request_status_code=code)
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def check_content(content, as_json=True):
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if content is None or len(content) == 0:
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raise FBchatFacebookError("Error when sending request: Got empty response")
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def to_json(content):
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content = strip_json_cruft(content)
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j = parse_json(content)
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log.debug(j)
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return j
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def get_jsmods_require(j, index):
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if j.get("jsmods") and j["jsmods"].get("require"):
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try:
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return j["jsmods"]["require"][0][index][0]
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except (KeyError, IndexError) as e:
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log.warning(
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"Error when getting jsmods_require: "
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"{}. Facebook might have changed protocol".format(j)
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)
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return None
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def require_list(list_):
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if isinstance(list_, list):
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return set(list_)
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else:
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return set([list_])
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def mimetype_to_key(mimetype):
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if not mimetype:
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return "file_id"
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if mimetype == "image/gif":
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return "gif_id"
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x = mimetype.split("/")
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if x[0] in ["video", "image", "audio"]:
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return "%s_id" % x[0]
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return "file_id"
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def get_files_from_urls(file_urls):
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files = []
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for file_url in file_urls:
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r = requests.get(file_url)
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# We could possibly use r.headers.get('Content-Disposition'), see
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# https://stackoverflow.com/a/37060758
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files.append(
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(
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basename(file_url).split("?")[0].split("#")[0],
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r.content,
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r.headers.get("Content-Type") or guess_type(file_url)[0],
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)
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)
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return files
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@contextmanager
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def get_files_from_paths(filenames):
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files = []
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for filename in filenames:
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files.append(
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(basename(filename), open(filename, "rb"), guess_type(filename)[0])
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)
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yield files
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for fn, fp, ft in files:
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fp.close()
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def get_url_parameters(url, *args):
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params = parse_qs(urlparse(url).query)
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return [params[arg][0] for arg in args if params.get(arg)]
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def get_url_parameter(url, param):
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return get_url_parameters(url, param)[0]
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def prefix_url(url):
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if url.startswith("/"):
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return "https://www.facebook.com" + url
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return url
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