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session.py
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session.py
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from http import cookies
import requests
import urllib
import re
import json
import enum
"""
import ssl
if (not os.environ.get('PYTHONHTTPSVERIFY', '') and getattr(ssl, '_create_unverified_context', None)):
ssl._create_default_https_context = ssl._create_unverified_context
"""
class DF(enum.Enum):
""" Debug Flags/Types enum
Enums are an easy & safe way to set and control several settings
-- All with int 0 .. 99 will be set to true for errors (if ErrorsShowAll) (for failed request)
-- All with int -1 .. -99 will be set to false for errors (if ErrorsShowAll)
"""
# Booleans
Url = 7
Cookies = 1 # Eclipse needs = 1 for lookahead
Headers = 2
FormData = 3
UrlEncoded = 5
ResponseText= 4
ResponseHeaders = 8
JsonPretty = 6
TrimResponse = -2 # Leading & trailing whitespace
TruncateReponse = -1 # Helpful for screen scraping when false
DebugSettingChanges = 101
ObscureFormPost = 108 # Not obscuring GET (for now)
ResponseTextOneLine = 109
ErrorsShowAll = 200
OneLineOnly = 201 # Even if there is an error ... 1 line
# Ints
ResponseLength = 220
JsonResponseLength = 221
# Strings
ObscureOutputSubstrings = 300
PadReponseText = 301
class Session:
""" Post to get IP address
APP NAME CLIENT ID CLIENT SECRET ACTION
Party Life vDRc2uQb iPSqzQIUYkYk
"""
def __init__(self):
self.cookies = None
self.sess = requests.Session()
di = self.debug_info = {}
di[DF.ObscureOutputSubstrings] = "password,client_,user_,access_"
self.obscure_dict = di[DF.ObscureOutputSubstrings].split(",")
self.set_debug_development()
def set_debug_minimal(self):
di = self.debug_info
di[DF.Cookies] = False
di[DF.Headers] = False
di[DF.FormData]= False
di[DF.ResponseText] = False
def set_debug_development(self):
di = self.debug_info
# Defaults ...
di[DF.Url] = True
di[DF.Cookies] = False
di[DF.Headers] = False
di[DF.FormData] = True
di[DF.UrlEncoded] = True
di[DF.TrimResponse] = True
di[DF.TruncateReponse] = True
di[DF.DebugSettingChanges] = True
di[DF.JsonPretty] = True
di[DF.ObscureFormPost] = True
di[DF.OneLineOnly] = False
di[DF.ResponseHeaders] = True
di[DF.ResponseText] = True
di[DF.ResponseTextOneLine] = False
di[DF.ResponseLength] = 500
di[DF.JsonResponseLength] = 2000
di[DF.PadReponseText] = '-'*100 + "\n"
def set_debug_errors_only(self):
di = self.debug_info
def set_debug_state(self, df_key, df_value):
""" DF_key such as: DF.Cookies
DF_value must match type of existing value or warning will occur """
di = self.debug_info
v0 = di[df_key]
t0 = type(v0)
t1 = type(df_value)
if t1 == t0:
di[df_key] = df_value
if di[DF.DebugSettingChanges]:
print (f"Session debug_info[{df_key}] = {df_value} (was: {v0} )")
else:
print (f"Warning: debug_info[{df_key}] = {v0} with type: {t0} could not be set to: {v1} with type: {t1} )")
def _obscure(self, key):
for obs_key in self.obscure_dict:
if re.search(obs_key, key):
return True
return False
def get(self, url, data = {}):
return self.post(url, data, {}, method = "GET")
def put(self, url, data):
return self.post(url, data, {}, method = "PUT")
def _debug_post(self, url, method, data, headers, resp):
result = []
di = self.debug_info
# Debug info for failed POST/http call
resp_status = resp.status_code
if resp_status >= 400 and di[DF.ErrorsShowAll]:
di2 = di.copy()
for debug_key in DF: # Cookies = 1
dki = int(debug_key)
if 1 <= dki <= 99:
di2[debug_key] = True
if -99 <= dki <= -1:
di2[debug_key] = False
di = di2 # For this request only
nl = "\n"; t = "\t"
if di[DF.OneLineOnly]:
nl = " | "; tab = " - "
if di[DF.Url]:
result.append(f"{method} => {url}")
if di[DF.Cookies]:
result.append (f"{t}cookies: ")
for c in self.sess.cookies:
result.append (f"{t}{t}{c}")
if di[DF.Headers]:
result.append (f"{t}request headers:")
for h in headers.keys():
result.append (f"\t\t{h} => {headers[h]}")
if di[DF.FormData]:
result.append (f"{t}form data:")
for k in data.keys():
v = data[k]
if di[DF.ObscureFormPost] and self._obscure(k):
v = "*" * len(v)
result.append(f"{t}{t}{k} => {v}")
ct = resp.headers.get("content-type")
result.append(f"{t}response-code: {resp.status_code} {t} content-type: {ct} {t} content-size: {len(resp.text)} {t} reason: {resp.reason}")
if [di[DF.ResponseHeaders]]:
rh = resp.headers
result.append(f"{t}response headers:")
for k in rh.keys():
result.append(f"{t*2}{k} => {rh[k]} ")
resp_text_display = self._format_response_text(resp.text, di)
result.append(resp_text_display)
print (nl.join(result))
# self._debug_post(data, headers)
def pp(self, arg, comment = ""):
s = self.pretty(json.dumps(arg))
print (f"{comment} => {s} ")
def pretty(self, arg):
try:
data = json.loads(arg)
pretty = json.dumps(data, indent=2, sort_keys=True)
text = pretty
except Exception as e:
print (f"Failed parsing json: {e} ")
text = json
return text
def data_sorted(self, arg):
try:
json_obj = json.loads(arg)
pretty_sorted_text = json.dumps(json_obj, indent=2, sort_keys=True)
data = json.loads(pretty_sorted_text)
return data
except Exception as e:
print (f"Failed parsing json: {e} ")
return arg
def _format_response_text(self, text, debug_info_override):
di = debug_info_override
if not di[DF.ResponseText]:
return ""
nl = "\n"; t = "\t"
if di[DF.OneLineOnly]:
nl = " | "; tab = " - "
is_json = False
if di[DF.TrimResponse]:
text = text.strip()
is_json = text.startswith("{")
else:
if di[DF.JsonPretty]:
text2 = text.trim()
is_json = text2.startswith("{")
if is_json and di[DF.JsonPretty]:
text = pretty(text)
if di[DF.TruncateReponse]:
maxlen = di[DF.JsonResponseLength] if is_json else di[DF.ResponseLength]
append = f" ... (truncated) "
text = f"{text[:maxlen]}{nl}{append}{nl}" if len(text) > maxlen else text
if di[DF.OneLineOnly]:
text = re.sub('[\r\n]', '', text)
else:
pad = di[DF.PadReponseText]
text = f"{pad}{text}{nl}{pad}"
return text
def post(self, url, data, headers = {}, method = "POST"):
di = self.debug_info
method = method.upper()
urlencoded_data = urllib.parse.urlencode(data)
if method in ("POST","PUT"):
headers["content-type"] = "application/x-www-form-urlencoded"
headers["content-length"] = str(len(urlencoded_data)) # type & length were critical!! Or Server 500
if method in ("GET"):
params = f"?{urlencoded_data}" if len(urlencoded_data) > 0 else ""
url = f"{url}{params}"
if method == "POST":
resp = self.sess.post(url, data=urlencoded_data, headers = headers)
elif method == "PUT":
resp = self.sess.put(url, data)
elif method == "GET":
resp = self.sess.get(url)
elif method == "DELETE":
resp = self.sess.delete(url)
else:
print (f"method: {method} - not supported. ?")
return
self._debug_post(url, method, data, headers, resp)
return resp