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40 lines
1.3 KiB
40 lines
1.3 KiB
from urllib.request import urlopen
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from urllib.parse import urlparse
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import re
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import sys
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LINK_REGEX = re.compile("<a [^>]*href=['\"]([^\"]+)['\"][^>]*>")
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class LinkCollector:
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def __init__(self, url):
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self.url = "http://" + urlparse(url).netloc
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self.collected_links = set()
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self.visited_links = set()
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def collect_links(self, path="/"):
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full_url = self.url + path
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self.visited_links.add(full_url)
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page = str(urlopen(full_url).read())
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links = LINK_REGEX.findall(page)
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links = {self.normalize_url(path, link) for link in links}
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self.collected_links = links.union(self.collected_links)
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self.unvisited_links = links.difference(self.visited_links)
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for link in self.unvisited_links:
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if link.startswith(self.url):
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self.collect_links(urlparse(link).path)
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def normalize_url(self, path, link):
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if link.startswith("http://") or link.startswith("https://"):
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return link
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elif link.startswith("/"):
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return self.url + link
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else:
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return self.url + path.rpartition('/')[0] + '/' + link
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if __name__ == "__main__":
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collector = LinkCollector(sys.argv[1])
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collector.collect_links()
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for link in collector.collected_links:
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print(link)
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