__author__ = 'DarkWeb'

'''
CryptBB Forum Crawler (Selenium)
'''

from selenium import webdriver
from selenium.common.exceptions import NoSuchElementException
from selenium.webdriver.firefox.firefox_profile import FirefoxProfile
from selenium.webdriver.firefox.firefox_binary import FirefoxBinary
from selenium.webdriver.firefox.service import Service
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.ui import WebDriverWait

from PIL import Image
import urllib.parse as urlparse
import os, re, time
import subprocess
from bs4 import BeautifulSoup
from Forums.Initialization.prepare_parser import new_parse
from Forums.CryptBB.parser import cryptBB_links_parser
from Forums.Utilities.utilities import cleanHTML

counter = 1
baseURL = 'http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/'


# Opens Tor Browser, crawls the website
def startCrawling():
    forumName = getForumName()
    driver = getAccess()

    if driver != 'down':
        try:
            login(driver)
            crawlForum(driver)
        except Exception as e:
            print(driver.current_url, e)
        closeDriver(driver)

    new_parse(forumName, baseURL, True)


# Login using premade account credentials and do login captcha manually
def login(driver):
    #click login button
    login_link = driver.find_element(
                by=By.XPATH, value='/html/body/div/div[2]/div/table/tbody/tr[2]/td/center/pre/strong/a[1]').\
                get_attribute('href')
    driver.get(login_link)# open tab with url

    #entering username and password into input boxes
    usernameBox = driver.find_element(by=By.XPATH, value='/html/body/div/div[2]/div/form/table/tbody/tr[2]/td[2]/input')
    #Username here
    usernameBox.send_keys('holyre')#sends string to the username box
    passwordBox = driver.find_element(by=By.XPATH, value='/html/body/div/div[2]/div/form/table/tbody/tr[3]/td[2]/input')
    #Password here
    passwordBox.send_keys('PlatinumBorn2')# sends string to passwordBox

    '''
    # wait for captcha page show up
    WebDriverWait(driver, 100).until(EC.visibility_of_element_located(
        (By.XPATH, "/html/body/div/div[2]/div/form/div/input")))

    # save captcha to local
    driver.find_element(by=By.XPATH, value='//*[@id="captcha_img"]').screenshot(r'..\CryptBB\captcha.png')

    # This method will show image in any image viewer
    im = Image.open(r'..\CryptBB\captcha.png')

    im.show()

    # wait until input space show up
    inputBox = driver.find_element(by=By.XPATH, value='//*[@id="imagestring"]')


    # ask user input captcha solution in terminal
    userIn = input("Enter solution: ")

    # send user solution into the input space
    inputBox.send_keys(userIn)

    # click the verify(submit) button
    driver.find_element(by=By.XPATH, value="/html/body/div/div[2]/div/form/div/input").click()
    '''
    input("Press ENTER when CAPTCHA is completed\n")

    # wait for listing page show up (This Xpath may need to change based on different seed url)
    # wait for 50 sec until id = tab_content is found, then cont
    WebDriverWait(driver, 50).until(EC.visibility_of_element_located(
        (By.XPATH, '//*[@id="tab_content"]')))


# Returns the name of the website
def getForumName() -> str:
    name = 'CryptBB'
    return name


# Return the link of the website
def getFixedURL():
    url = 'http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/'
    return url


# Closes Tor Browser
def closeDriver(driver):
    # global pid
    # os.system("taskkill /pid " + str(pro.pid))
    # os.system("taskkill /t /f /im tor.exe")
    print('Closing Tor...')
    driver.close() #close tab
    time.sleep(3)
    return


# Creates FireFox 'driver' and configure its 'Profile'
# to use Tor proxy and socket
def createFFDriver():
    from Forums.Initialization.forums_mining import config

    ff_binary = FirefoxBinary(config.get('TOR', 'firefox_binary_path'))

    ff_prof = FirefoxProfile(config.get('TOR', 'firefox_profile_path'))
    ff_prof.set_preference("places.history.enabled", False)
    ff_prof.set_preference("privacy.clearOnShutdown.offlineApps", True)
    ff_prof.set_preference("privacy.clearOnShutdown.passwords", True)
    ff_prof.set_preference("privacy.clearOnShutdown.siteSettings", True)
    ff_prof.set_preference("privacy.sanitize.sanitizeOnShutdown", True)
    ff_prof.set_preference("signon.rememberSignons", False)
    ff_prof.set_preference("network.cookie.lifetimePolicy", 2)
    ff_prof.set_preference("network.dns.disablePrefetch", True)
    ff_prof.set_preference("network.http.sendRefererHeader", 0)
    ff_prof.set_preference("permissions.default.image", 3)
    ff_prof.set_preference("browser.download.folderList", 2)
    ff_prof.set_preference("browser.download.manager.showWhenStarting", False)
    ff_prof.set_preference("browser.helperApps.neverAsk.saveToDisk", "text/plain")
    ff_prof.set_preference('network.proxy.type', 1)
    ff_prof.set_preference("network.proxy.socks_version", 5)
    ff_prof.set_preference('network.proxy.socks', '127.0.0.1')
    ff_prof.set_preference('network.proxy.socks_port', 9150)
    ff_prof.set_preference('network.proxy.socks_remote_dns', True)
    ff_prof.set_preference("javascript.enabled", True)
    ff_prof.update_preferences()

    service = Service(config.get('TOR', 'geckodriver_path'))

    driver = webdriver.Firefox(firefox_binary=ff_binary, firefox_profile=ff_prof, service=service)

    driver.maximize_window()

    return driver


def getAccess():
    url = getFixedURL()
    driver = createFFDriver()
    try:
        driver.get(url)
        return driver
    except:
        driver.close()
        return 'down'


# Saves the crawled html page
def savePage(driver, page, url):
    cleanPage = cleanHTML(driver, page)
    filePath = getFullPathName(url)
    os.makedirs(os.path.dirname(filePath), exist_ok=True)
    open(filePath, 'wb').write(cleanPage.encode('utf-8'))
    return


# Gets the full path of the page to be saved along with its appropriate file name
def getFullPathName(url):
    from Forums.Initialization.forums_mining import config, CURRENT_DATE

    mainDir = os.path.join(config.get('Project', 'shared_folder'), "Forums/" + getForumName() + "/HTML_Pages")
    fileName = getNameFromURL(url)
    if not isListingLink(url):
        fullPath = os.path.join(mainDir, CURRENT_DATE + r'\\Description\\' + fileName + '.html')
    else:
        fullPath = os.path.join(mainDir, CURRENT_DATE + r'\\Listing\\' + fileName + '.html')
    return fullPath


# Creates the file name from passed URL
def getNameFromURL(url):
    global counter
    name = ''.join(e for e in url if e.isalnum())
    if name == '':
        name = str(counter)
        counter = counter + 1
    return name


def getInterestedLinks():
    links = []

    # Beginner Programming
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=86')
    # Beginner Carding and Fraud
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=91')
    # Beginner Hacking
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=87')
    # Newbie
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=84')
    # Beginner Hardware
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=89')
    # Training Challenges
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=96')
    # Darknet Discussions
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=88')
    # Public Leaks and Warez
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=97')
    # Sell
    links.append('http://cryptbbtg65gibadeeo2awe3j7s6evg7eklserehqr4w4e2bis5tebid.onion/forumdisplay.php?fid=44')

    return links


def crawlForum(driver):
    print("Crawling the CryptBB forum")

    linksToCrawl = getInterestedLinks()

    i = 0
    while i < len(linksToCrawl):
        link = linksToCrawl[i]
        print('Crawling :', link)
        try:
            has_next_page = True
            count = 0

            while has_next_page:
                try:
                    driver.get(link)
                except:
                    driver.refresh()
                html = driver.page_source
                savePage(driver, html, link)

                topics = topicPages(html)
                for topic in topics:
                    has_next_topic_page = True
                    counter = 1
                    page = topic

                    while has_next_topic_page:
                        itemURL = urlparse.urljoin(baseURL, str(page))
                        try:
                            driver.get(itemURL)
                        except:
                            driver.refresh()
                        
                        if isListingLink(driver.current_url):
                            break

                        savePage(driver, driver.page_source, topic + f"page{counter}")  # very important

                        # # comment out
                        # if counter == 2:
                        #     break

                        try:
                            temp = driver.find_element(By.XPATH, '/html/body/div/div[2]/div/div[2]/div')
                            page = temp.find_element(by=By.CLASS_NAME, value='pagination_next').get_attribute('href')

                            if page == "":
                                raise NoSuchElementException
                            counter += 1

                        except NoSuchElementException:
                            has_next_topic_page = False

                    # making sure we go back to the listing page (browser back button simulation)
                    try:
                        driver.get(link)
                    except:
                        driver.refresh()

                #     # comment out
                #     break
                #
                # # comment out
                # if count == 1:
                #     break

                try:
                    temp = driver.find_element(by=By.XPATH, value='/html/body/div/div[2]/div/div[2]/div')
                    link = temp.find_element(by=By.CLASS_NAME, value='pagination_next').get_attribute('href')

                    if link == "":
                        raise NoSuchElementException
                    count += 1

                except NoSuchElementException:
                    has_next_page = False

        except Exception as e:
            print(link, e)
        i += 1

    print("Crawling the CrypttBB forum done.")


# Returns 'True' if the link is Topic link, may need to change for every website
def isDescriptionLink(url):
    if 'thread' in url:
        return True
    return False


# Returns True if the link is a listingPage link, may need to change for every website
def isListingLink(url):
    if '.onion/forumdisplay' in url:
        return True
    return False


# calling the parser to define the links
def topicPages(html):
    soup = BeautifulSoup(html, "html.parser")
    return cryptBB_links_parser(soup)


def crawler():
    startCrawling()
    # print("Crawling and Parsing BestCardingWorld .... DONE!")