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iNocturnis 2022-04-20 17:50:44 -07:00
commit e27b40f153
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2022-04-20 02:33:03,517 - FRONTIER - INFO - Found save file frontier.shelve, deleting it.
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@ -73,12 +73,24 @@ class Frontier(object):
self.save.sync()
self.to_be_downloaded.append(url)
def mark_url_complete(self, url):
urlhash = get_urlhash(url)
if urlhash not in self.save:
# This should not happen.
self.logger.error(
f"Completed url {url}, but have not seen it before.")
# Q1
self.uniques.add(removeFragment(url))
# Q2
tempTok = tokenize(url)
if len(tempTok) > max:
if len(tempTok) > self.max:
self.max = len(tempTok)
self.longest = url
@ -97,12 +109,35 @@ class Frontier(object):
self.ics[domain[0]].appendUnique(fragless)
def mark_url_complete(self, url):
urlhash = get_urlhash(url)
if urlhash not in self.save:
# This should not happen.
self.logger.error(
f"Completed url {url}, but have not seen it before.")
f = open("q1.txt", "w")
f.write("Number of unique pages: {length}\n".format(length = len(self.uniques)))
f.close()
# creating text file for question 2
f = open("q2.txt", "w")
f.write("Largest page url: {url} \nLength of page: {length}".format(url = self.longest, length = self.max))
f.close()
# creating text file for question 3
f = open("q3.txt", "w")
sortedGrandDict = {k: v for k, v in sorted(self.grand_dict.items(), key=lambda item: item[1], reverse = True)}
i = 0
for k, v in sortedGrandDict.items():
if i == 50:
break
else:
f.write("{}: {}\n".format(k, v))
i += 1
f.close()
# creating text file for question 4
sortedDictKeys = sorted(self.ics.keys())
f = open("q4.txt", "w")
for i in sortedDictKeys:
f.write("{url}, {num}".format(url = self.ics[i].getNiceLink(), num = len(self.ics[i].getUniques())))
f.close()
self.save[urlhash] = (url, True)
self.save.sync()

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@ -18,16 +18,29 @@ class Worker(Thread):
def run(self):
while True:
tic = time.perf_counter()
tbd_url = self.frontier.get_tbd_url()
toc = time.perf_counter()
print(f"Took {toc - tic:0.4f} seconds to get_tbd_url")
if not tbd_url:
self.logger.info("Frontier is empty. Stopping Crawler.")
break
tic = time.perf_counter()
resp = download(tbd_url, self.config, self.logger)
toc = time.perf_counter()
print(f"Took {toc - tic:0.4f} seconds to do download url")
self.logger.info(
f"Downloaded {tbd_url}, status <{resp.status}>, "
f"using cache {self.config.cache_server}.")
tic = time.perf_counter()
scraped_urls = scraper.scraper(tbd_url, resp)
toc = time.perf_counter()
print(f"Took {toc - tic:0.4f} seconds to do scrape url")
tic = time.perf_counter()
for scraped_url in scraped_urls:
self.frontier.add_url(scraped_url)
self.frontier.mark_url_complete(tbd_url)
toc = time.perf_counter()
print(f"Took {toc - tic:0.4f} seconds to do store stuffs")
time.sleep(self.config.time_delay)

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@ -1,4 +1,5 @@
import re
import urllib.request
from urllib.parse import urlparse
from urllib.parse import urljoin
@ -6,10 +7,16 @@ from bs4 import BeautifulSoup
from nltk.tokenize import word_tokenize
from nltk.corpus import stopwords
from nltk.corpus import words
import re
import html2text
import nltk
#nltk.download('stopwords')
#nltk.download('words')
#nltk.download('punkt')
english_words = words.words()
english_stop_words = stopwords.words('english')
# there is another nltk.download() requirement but I removed it so i forgot what it was
# it'll show in the console/terminal if you run the code i believe
# it showed in mine
@ -77,7 +84,7 @@ def tokenize(url):
# getting connection from url
page = urllib.request.urlopen(url)
data = page.read()
valid = re.compile(r'[^a-zA-Z0-9]+')
# named it tSoup for merge convience
# need the 'lxml' parser for this.
# When extract_next_links is called it returns a list full of links with no resp, and I had to find a way to get text from just link.
@ -89,10 +96,15 @@ def tokenize(url):
clean_text = ' '.join(tSoup.stripped_strings)
token = word_tokenize(clean_text)
clean_token = list()
# This used the nltk.corpus and just removes the tokens that aren't words
token = [i for i in token if i.lower() in words.words()]
#token = [i for i in token if i.lower() in english_words]
return token
for word in token:
if not valid.match(word):
clean_token.append(word.lower())
return clean_token
#added this so the scraper code is not too redundant
def computeFrequencies(tokens, d):
@ -103,8 +115,7 @@ def computeFrequencies(tokens, d):
d[t] += 1
def removeStopWords(toks):
stopWords = set(stopwords.words('english'))
return [t for t in toks if t.lower() if not t.lower() in stopWords]
return [t for t in toks if t.lower() if not t.lower() in english_stop_words]
def removeFragment(u):
# turn into a urlparse object

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@ -1,6 +1,9 @@
from distutils.filelist import findall
from operator import truediv
import re
import time
import urllib.request
from urllib import robotparser
from urllib.parse import urlparse
from urllib.parse import urljoin
from bs4 import BeautifulSoup
@ -8,48 +11,24 @@ from robotsokay import *
def scraper(url, resp):
links = extract_next_links(url, resp)
links_valid = list()
valid_links = open("valid_links.txt",'a')
invalid_links = open("invalid_links.txt",'a')
links_valid = set()
#valid_links = open("valid_links.txt",'a')
#invalid_links = open("invalid_links.txt",'a')
for link in links:
tic = time.perf_counter()
if is_valid(link):
links_valid.append(link)
valid_links.write(link + "\n")
links_valid.add(link)
toc = time.perf_counter()
print(f"Took {toc - tic:0.4f} seconds to do validate url")
#valid_links.write(link + "\n")
else:
invalid_links.write("From: " + url + "\n")
invalid_links.write(link + "\n")
# invalid_links.write("From: " + url + "\n")
#invalid_links.write(link + "\n")
pass
# Needs to be moved
# creating text file that includes the number of unique links
f = open("q1.txt", "w")
f.write("Number of unique pages: {length}\n".format(length = len(uniques)))
f.close()
# creating text file for question 2
f = open("q2.txt", "w")
f.write("Largest page url: {url} \nLength of page: {length}".format(url = longest, length = max))
f.close()
# creating text file for question 3
f = open("q3.txt", "w")
sortedGrandDict = {k: v for k, v in sorted(grand_dict.items(), key=lambda item: item[1], reverse = True)}
i = 0
for k, v in sortedGrandDict.items():
if i == 50:
break
else:
f.write("{}: {}\n".format(k, v))
i += 1
f.close()
# creating text file for question 4
sortedDictKeys = sorted(ics.keys())
f = open("q4.txt", "w")
for i in sortedDictKeys:
f.write("{url}, {num}".format(url = ics[i].getNiceLink(), num = len(ics[i].getUniques())))
f.close()
return links_valid
@ -63,11 +42,11 @@ def extract_next_links(url, resp):
# resp.raw_response.url: the url, again
# resp.raw_response.content: the content of the page!
# Return a list with the hyperlinks (as strings) scrapped from resp.raw_response.content
pages = list()
pages = set()
if resp.status == 200:
#do stuff
soup = BeautifulSoup(resp.raw_response.content)
tempFile = open("test6.txt", 'a')
#tempFile = open("test6.txt", 'a')
#Getting all the links, href = true means at least theres a href value, dont know what it is yet
for link in soup.find_all('a', href=True):
#There is a lot of relative paths stuff here gotta add them
@ -93,9 +72,10 @@ def extract_next_links(url, resp):
if not robots_are_ok(parsed):
continue
tempFile.write(href_link + "\n")
#tempFile.write(href_link + "\n")
#Adding to the boi wonder pages
pages.append(href_link)
pages.add(href_link)
else:
print("Page error !")
return pages