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mobilismScrap/main.py
2021-08-27 00:25:01 +02:00

202 lines
9.8 KiB
Python

from sys import argv
from os import environ
from dotenv import load_dotenv
from cloudscraper import CloudScraper, create_scraper
from re import findall, sub
class Scraper:
def __init__(self, pseudo: str, password: str, app: str, debug: bool = False):
self.debug = debug
self.url = "https://forum.mobilism.org"
self.requested_app = app
self.loginData = {
"username": pseudo,
"password": password,
"login": "Login"
}
def errorFormat(self, code: int = None, message: str = "") -> str:
"""Pretty error message."""
return f"{f'[{code}]' if code else ''}{' ' if len(message) > 0 and code else ''}{message}."
def connect(self) -> CloudScraper:
"""Login to the forum using credentials."""
session = create_scraper(browser = {"browser": "chrome", "platform": "windows"}) # connect with cloudflare bypasser with a chrome browser on windows
if not session:
raise SystemError(self.errorFormat(message = "The creation of the session failed")) # called only if failed at creating the session
if self.debug: print("Connection attempt...")
reponse = session.post(f"{self.url}/ucp.php", data = self.loginData, params = {"mode": "login"}) # connect to the forum using credentials - params are set by default but its in case forum changing that
if reponse.status_code != 200:
raise ConnectionRefusedError(self.errorFormat(code = reponse.status_code, message = "Unable to connect")) # called only status code isn't 200
return session
def search(self, session: CloudScraper) -> tuple[list[dict], list[dict]]:
"""Do the research."""
if self.debug: print("Going to search page and check connection...", end = " ")
reponse = session.get(f"{self.url}/search.php", params = {"keywords": self.requested_app, "sr": "topics", "sf": "titleonly"}) # fetch results page
if "Sorry but you are not permitted to use the search system. If you're not logged in please" in reponse.text:
raise ConnectionError(self.errorFormat(message = "Connection failed, check credentials")) # called only if login failed
if reponse.status_code != 200:
raise ConnectionError(self.errorFormat(code = reponse.status_code, message = "Impossible to make the search")) # called only status code isn't 200
if self.debug: print(f"Connected.")
if self.debug: print(f"Fetching results for {self.requested_app}...", end = " ")
topics = self.parse(reponse.text)
self.save(topics)
return topics, self.getInfos(session, topics)
def parse(self, htmlPage: str) -> list[dict]:
"""Parse HTML reponse to a clean list."""
if "No suitable matches were found." in htmlPage:
return []
elements = htmlPage.split("<tr>\n<td>")[1:]
elements[-1] = elements[-1].split("</td>\n</tr>")[0]
for i in range(0, len(elements)):
try:
_title = findall(r"class=\"topictitle\">(.*)<\/a>", elements[i])[0]
_title = sub(r" ?&amp; ?", " ", _title)
except:
_title = None
try:
_author = findall(r"(<br />|</strong>)\n\n?<i class=\"icon-user\"></i> by <a href=\"\./memberlist\.php\?mode=viewprofile&amp;u=\d+\"( style=\"color: #.*;\" class=\"username-coloured\")?>(.*)</a>", elements[i])[0][-1]
except:
_author = None
try:
_link = findall(r"\./viewtopic\.php\?f=(\d*)&amp;t=(\d*)&amp", elements[i])[0]
_link = {"f": _link[0], "t": _link[1]}
except:
_link = None
try:
_date = findall(r"</a> <i class=\"icon-time\"></i> <small>(.*)</small>", elements[i])[0]
except:
_date = None
print("\n" + elements[i] + "\n")
elements[i] = {"title": _title, "author": _author, "date": _date, "link": f"{self.url}/viewtopic.php?f={_link['f']}&t={_link['t']}", "linkParams": _link}
return elements
def getInfos(self, session: CloudScraper, elements: list) -> list:
"""Go to the first n pages and get a lot of infos."""
size = len(elements)
if size == 0:
return []
page = 3
if self.debug: print(f"Going to the {page} first pages...", end = " ")
results = []
for i in range(0, size):
if i < page:
reponse = session.get(f"{self.url}/viewtopic.php", params = elements[i]["linkParams"]) # fetch results page
results.append(reponse)
if reponse.status_code != 200:
raise ConnectionError(self.errorFormat(code = reponse.status_code, message = f"Error while doing the search n°{i}")) # called only status code isn't 200
if self.debug: print(f"Done.")
if self.debug: print(f"Parsing results page...", end = " ")
results = self.parsingInfos(results)
if self.debug: print(f"Done.")
return results
def parsingInfos(self, elements: list) -> list[dict]:
"""Parse infos from the page of the app."""
for i in range(0, len(elements)):
elements[i] = elements[i].text
if "Download Instructions" not in elements[i]:
elements[i] = {"changelogs": None, "downloadLinks": None}
continue
try:
_changelogs = findall(r"What's New:</span> ?<br />(.*)<br /><br /><span style=\"c|font-weight: bold\">T", elements[i])[0]
if len(_changelogs) < 2: # if result none, trying other method
_changelogs = findall(r"What's New:</span> ?<br />(.*)<br /><br /><span style=\"font-weight: bold\">T", elements[i])[0]
except:
_changelogs = "No changelog found."
try:
elements[i] = sub(r"Download Instructions:</span>(.*)?<br /><s", "Download Instructions:</span><br /><s", elements[i])
_downloadLinks = findall(r"Download Instructions:</span> ?<br />(.*|[\s\S]*)<br /><br />Trouble downloading|</a></div>", elements[i])[0]
if len(_downloadLinks) < 2:# if result none, trying other method
_downloadLinks = findall(r"Download Instructions:</span> ?<br />(.*|[\s\S]*)</a></div>", elements[i])[0]
except:
_downloadLinks = None
_downloadLinks = sub(r"\n|<a class=\"postlink\" href=\"|\(Closed Filehost\) ?|<span style=\"font-weight: bold\">|</span>|\">(\S*)</a>", "", _downloadLinks) # remove html garbage
_downloadLinks = sub(r"<br />\n?", "\n", _downloadLinks) # convert newline html to \n
_downloadLinks = sub(r"Mirrors(?!:)|Mirror(?!s)(?!:)", "Mirror:", _downloadLinks) # add ":"
_downloadLinks = _downloadLinks.split('">')[0]
elements[i] = {"changelogs": _changelogs, "downloadLinks": _downloadLinks}
return elements
def prettyPrint(self, topics: tuple[list[dict], list[dict]]) -> list:
"""Show a pretty message with all the specialized infos."""
topics, topicsInfos = topics
if len(topics) == 0:
return []
print("\n")
result = []
for i in range(0, len(topicsInfos)):
result.append({
"title": topics[i]["title"],
"author": topics[i]["author"],
"date": topics[i]["date"],
"changelogs": str(topicsInfos[i]["changelogs"]).replace("<br />", "\n"),
"downloadLinks": topicsInfos[i]["downloadLinks"]
})
print(f"Title: {result[i]['title']}\n")
print(f"Author: {result[i]['author']}\n")
print(f"Date of release: {result[i]['date']}\n")
print(f"Changelogs: \n{result[i]['changelogs']}\n")
print(f"Download links: \n{result[i]['downloadLinks']}")
print("\n\n---\n")
return result
def work(self) -> list:
"""Call all the others methods."""
return self.prettyPrint(self.search(self.connect()))
def save(self, elements: list) -> None:
"""Save all the results parsed to a CSV file."""
size = len(elements)
if size == 0:
print("No elements were found with the search.")
return
filename = "results.csv"
with open(filename, "w") as f:
topCSV = list(elements[0].keys()) # create a copy of the first element keys
topCSV.remove("linkParams") # remove linkParams
f.write(";".join(topCSV))
f.write("\n")
for element in elements:
if element != "linkParams":
f.write(";".join(str(e) for e in list(element.values())[:-1]))
f.write("\n")
print(f"{size} elements have been registered in the {filename} file.")
if __name__ == "__main__":
argv = argv[1:]
if len(argv) < 1: # no args
print("No App to retrieve.")
exit(1)
load_dotenv() # load .env file
try:
try: # for logs
debug = environ["DEBUG_MOBILISM"].lower() in ("yes", "true", "1")
except:
debug = False
try: # try to fetch credentials from de .env first
pseudoMobilism = environ["PSEUDO_MOBILISM"]
passwordMobilism = environ["PASSWORD_MOBILISM"]
except: # if it failed try to get from the cli
if len(argv) >= 3:
pseudoMobilism = argv[0]
passwordMobilism = argv[1]
argv = argv[-2:]
else: # if it failed again there is a problem
raise KeyError
Scraper(pseudoMobilism, passwordMobilism, " ".join([n for n in argv]), debug).work() # call the work() function
except KeyError:
print('Please fill in the username and password (with quotes) by args or with .env file and give an app to retrieve.')