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crawler: comment code a bit

master
pictuga 2020-05-02 19:18:01 +02:00
parent 64e41b807d
commit 271ac8f80f
1 changed files with 4 additions and 1 deletions
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morss/crawler.py
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@ -123,18 +123,21 @@ def is_ascii(string):
def sanitize_url(url): def sanitize_url(url):
# make sure the url is unicode, i.e. not bytes
if isinstance(url, bytes): if isinstance(url, bytes):
url = url.decode() url = url.decode()
# make sure there's a protocol (http://)
if url.split(':', 1)[0] not in PROTOCOL: if url.split(':', 1)[0] not in PROTOCOL:
url = 'http://' + url url = 'http://' + url
# turns out some websites have really badly fomatted urls (fix http:/badurl) # turns out some websites have really badly fomatted urls (fix http:/badurl)
url = re.sub('^(https?):/([^/])', r'\1://\2', url) url = re.sub('^(https?):/([^/])', r'\1://\2', url)
# escape spaces
url = url.replace(' ', '%20') url = url.replace(' ', '%20')
# Escape non-ascii unicode characters # escape non-ascii unicode characters
# https://stackoverflow.com/a/4391299 # https://stackoverflow.com/a/4391299
parts = list(urlparse(url)) parts = list(urlparse(url))