dark_web_forums/Forums/Helium/parser.py

__author__ = 'DarkWeb'

# Here, we are importing the auxiliary functions to clean or convert data
from Forums.Utilities.utilities import *

# Here, we are importing BeautifulSoup to search through the HTML tree
from bs4 import BeautifulSoup

# This is the method to parse the Description Pages (one page to each topic in the Listing Pages)
def helium_description_parser(soup):

    # Fields to be parsed

    topic = "-1"           # topic name
    user = []              # all users of each post
    addDate = []           # all dated of each post
    feedback = []          # all feedbacks of each vendor (this was found in just one Forum and with a number format)
    status = []            # all user's authority in each post such as (adm, member, dangerous)
    reputation = []        # all users's karma in each post (usually found as a number)
    sign = []              # all user's signature in each post (usually a standard message after the content of the post)
    post = []              # all messages of each post
    interest = []          # all user's interest in each post

    # Finding the topic (should be just one coming from the Listing Page)

    li = soup.find("h4", {"class": "text-truncated"})
    topic = li.text
    topic = topic.replace("Topic:", "")
    topic = topic.replace("Post Reply", "")
    topic = topic.replace(",", "")
    topic = topic.replace("\n", "")
    topic = cleanString(topic.strip())

    # Finding the repeated tag that corresponds to the listing of posts

    posts = soup.findAll('div', {"id": "a9"})

    # For each message (post), get all the fields we are interested to:

    for ipost in posts:

        # Finding a first level of the HTML page

        # Finding the author (user) of the post

        heading = ipost.find('div', {"class": "panel-heading"})
        title = heading.find('div', {"class": "panel-title"}).text
        author = title.replace("User:", "")
        author = author.strip()
        user.append(cleanString(author)) # Remember to clean the problematic characters

        # Finding the status of the author
        # Testing here two possibilities to find this status and combine them
        # Helium does not have membergroup and postgroup

        membergroup = heading.find('li', {"class": "membergroup"})
        postgroup = heading.find('li', {"class": "postgroup"})
        if membergroup != None:
           membergroup = membergroup.text.strip()
           if postgroup != None:
              postgroup = postgroup.text.strip()
              membergroup = membergroup + " - " + postgroup
        else:
           if postgroup != None:
              membergroup = postgroup.text.strip()
           else:
              membergroup = "-1"
        status.append(cleanString(membergroup))

        # Finding the interest of the author
        # Helium does not have blurb

        blurb = heading.find('li', {"class": "blurb"})
        if blurb != None:
           blurb = blurb.text.strip()
        else:
           blurb = "-1"
        interest.append(cleanString(blurb))

        # Finding the reputation of the user
        # Helium does not have karma

        karma = heading.find('li', {"class": "karma"})
        if karma != None:
            karma = karma.text
            karma = karma.replace("Community Rating: ","")
            karma = karma.replace("Karma: ","")
            karma = karma.strip()
        else:
            karma = "-1"
        reputation.append(cleanString(karma))

        # Getting here another good tag to find the post date, post content and users' signature

        postarea = ipost.find('div', {"class": "content_body"})

        # Finding the date of the post
        # Helium does not have date

        addDate.append("-1")

        # dt = ipost.find('p', {"class": "author"}).text.split('»')[1]
        # # dt = dt.strip().split()
        # dt = dt.strip()
        # date_time_obj = datetime.strptime(dt, '%a %b %d, %Y %I:%M %p')
        # stime = date_time_obj.strftime('%a %b %d, %Y')
        # sdate = date_time_obj.strftime('%I:%M %p')
        # addDate.append(date_time_obj)

        # date_time_obj = datetime.strptime(dt, '%a %b %d, %Y %I:%M %p')
        # smalltext = postarea.find('div', {"class": "flow_hidden"}).find('div', {"class": "keyinfo"})\
        #     .find('div', {"class": "smalltext"})
        # sdatetime = smalltext.text
        # sdatetime = sdatetime.replace(u"\xab","") # Removing unnecessary characters
        # sdatetime = sdatetime.replace(u"\xbb","") # Removing unnecessary characters
        # sdatetime = sdatetime.split("on: ")       # Removing unnecessary characters
        # sdatetime = sdatetime[1].strip()
        # stime = sdatetime[:-12:-1]                # Finding the time of the post
        # stime = stime[::-1]
        # sdate = sdatetime.replace(stime,"")       # Finding the date of the post
        # sdate = sdate.replace(",","")
        # sdate = sdate.strip()

        # Covert the date of the post that can be informed as: "12 February 2016", "today", "yesterday". We need
        # a date format here as "mm/dd/yyyy"

        #addDate.append(convertDate(sdate,"english", crawlerDate) + " " + stime)

        # Finding the post

        paragraphs = postarea.find_all('p')
        p = ""
        for paragraph in paragraphs:
            p += paragraph.text.strip() + " "
        quote = postarea.find('div', {"class": "standard_quote"})
        if quote != None:
            q = quote.text.strip()
            p.replace(q, "")
        post.append(cleanString(p.strip()))

        # Finding the users's signature
        # Helium does not have signature

        #signature = ipost.find('div', {"class": "post_wrapper"}).find('div', {"class": "moderatorbar"}).find('div', {"class": "signature"})
        signature = ipost.find('div', {"class": "post_wrapper"})
        if signature != None:
           signature = signature.text.strip()
        else:
           signature = "-1"
        sign.append(cleanString(signature))

        # As no information about users's feedback was found, just assign "-1" to the variable

        feedback.append("-1")

    # Populate the final variable (this should be a list with all fields scraped)

    row = (topic, post, user, addDate, feedback, status, reputation, sign, interest)

    # Sending the results

    return row


# This is the method to parse the Listing Pages (one page with many posts)
def helium_listing_parser(soup):

    board = "-1"       # board name (the previous level of the topic in the Forum categorization tree.
                       # For instance: Security/Malware/Tools to hack Facebook. The board here should be Malware)

    nm = 0             # this variable should receive the number of topics
    topic = []         # all topics
    user = []          # all users of each topic
    post = []          # number of posts of each topic
    view = []          # number of views of each topic
    addDate = []       # when the topic was created (difficult to find)
    href = []          # this variable should receive all cleaned urls (we will use this to do the marge between
                       # Listing and Description pages)

    # Finding the board (should be just one)

    parents = soup.find('div', {"class": "col-md-12"}).findAll('li')
    board = parents[1].text + u"->" + parents[2].get('title')
    board = board.replace("\n", "")
    board = cleanString(board.strip())

    # Finding the repeated tag that corresponds to the listing of topics

    itopics = soup.find('table', {"class": "table"}).find('tbody').findAll('td', {"class": "col-md-8"})
    repliesViews = soup.find('table', {"class": "table"}).find('tbody').findAll('td', {"class": "col-md-2"})

    # Counting how many topics we have found so far

    nm = len(itopics)

    index = 0
    for itopic in itopics:

        # Adding the topic to the topic list

        topics = itopic.find('a').get('title')
        topics = topics.replace(",", "")
        topic.append(cleanString(topics.strip()))

        # Adding the url to the list of urls
        link = itopic.find('a').get('href')
        link = cleanLink(link)
        href.append(link)

        # Finding the author of the topic
        author = itopic.find('strong').text
        user.append(cleanString(author.strip()))

        rv = repliesViews[index].find('p').text.split()

        # Finding the number of replies
        posts = rv[0].replace("Replies", "")
        post.append(cleanString(posts.strip()))

        # Finding the number of Views
        tview = rv[1].replace("Views", "")
        view.append(cleanString(tview.strip()))

        # If no information about when the topic was added, just assign "-1" to the variable
        # dt = itopic.find('div', {"class": "responsive-hide"}).text.split('»')[1]
        # dt = dt.strip()
        # date_time_obj = datetime.strptime(dt,'%a %b %d, %Y %I:%M %p')
        # addDate.append(date_time_obj)
        addDate.append("-1")
        index += 1

    return organizeTopics("Helium", nm, topic, board, view, post, user, addDate, href)


def helium_links_parser(soup):

    # Returning all links that should be visited by the Crawler

    href = []

    listing = soup.find('table', {"class": "table"}).find('tbody').findAll('td', {"class": "col-md-8"})

    for a in listing:
        bae = a.find('a', href=True)
        link = bae['href']
        href.append(link)

    return href