Check whether our mirror packages are up to date.
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from bs4 import BeautifulSoup
import requests
import datefinder # another date finding library
import re
from datetime import datetime
from project import Project
from shared import CSC_MIRROR
# this function is brute force looping through the whole directory and checking dates
# it may sound horrible, but for certain distros, i believe it's indeed the best solution
class xiph(Project):
"""xiph class"""
def scrape(releases, site):
# getting the request from url
r = requests.get(site)
# converting the text
s = BeautifulSoup(r.text,"html.parser")
for i in s.find_all("a"): # for a href directories
href = i.attrs['href']
if href.endswith("/") and href != "../" and href != "/" and href != "/pub/xiph/" and not href.startswith("http://"):
if href not in releases:
# print(href)
def get_latest_date(web_dir):
page = requests.get(web_dir).text
str_dates = re.findall(r'(\d{2}-\w{3}-\d{4} \d{2}:\d{2})|(\d{4}-\d{2}-\d{2} \d{2}:\d{2})', page)
# if you want to match 1+ patterns, like r'(\d{2}-\w{3}-\d{4} \d{2}:\d{2})|(\d{4}-\d{2}-\d{2} \d{2}:\d{2})', note that findall will return a tuple of two groups!!!
# print(str_dates[0])
if len(str_dates) == 0:
return datetime(1000, 1, 1) # return ridiculously old date to discard this entry, since it has no dates
# for date in str_dates:
# print(date)
# print("")
dates = [list(datefinder.find_dates("".join(date)))[0] for date in str_dates]
# for date in dates:
# print(date)
def get_checksum_date(directory_URL):
page = requests.get(directory_URL).text
file_index = page.find("SUMS.txt")
# print(page)
# remove stray numbers (file size numbers in particular) that might interfere with date finding
segment_clean = re.sub(r'\s\d+\s', ' ', page[file_index:]) # removes numbers for size
segment_clean = re.sub(r'\s\d+\w*\s', ' ', page[file_index:]) # removes numbers + size unit. e.x. 50kb
# print(segment_clean)
# finds the dates in the segment after the file name
# notes: a generator will be returned by the datefinder module. I'm typecasting it to a list. Please read the note of caution provided at the bottom.
matches = list(datefinder.find_dates(segment_clean))
# print(matches[0])
return matches[0]
def compare_release(cls, csc_dir, upstream_dir):
page = requests.get(upstream_dir).text
file_index = page.find("SUMS.txt")
if file_index == -1:
return cls.get_latest_date(csc_dir) == cls.get_latest_date(upstream_dir)
return cls.get_checksum_date(csc_dir) == cls.get_checksum_date(upstream_dir)
def check_mirror(cls, csc_url, upstream_url, releases):
compare = []
for release in releases:
compare.append(cls.compare_release(csc_url+release, upstream_url+release))
return all(compare)
def check(cls, data, project, current_time):
"""Check if project packages are up-to-date"""
# lists
csc_url = CSC_MIRROR + data[project]["csc"] + data[project]["file"]
upstream_url = data[project]["upstream"] + data[project]["file"]
# calling function
cls.scrape(releases1, csc_url)
cls.scrape(releases2, upstream_url)
if set(releases1) != set(releases2):
return False
return cls.check_mirror(csc_url, upstream_url, releases2)