def _should_resolve(self, lru, spider):
c1 = has_prefix(lru, spider.discover_prefixes)
c2 = has_prefix(lru, spider.follow_prefixes)
c3 = any(
(match in lru
for match in ["url", "link", "redir", "target", "orig", "goto"]))
return c1 or (c2 and c3)
def process_item(self, item, spider):
lrulinks = []
for url, lru in item["lrulinks"]:
if self._should_resolve(lru, spider):
if url in spider.resolved_links:
lru = spider.resolved_links[url]
else:
try:
agent = ResolverAgent(proxy=self.proxy)
rurl = yield agent.resolve(url)
if rurl == url and has_prefix(lru, spider.discover_prefixes):
rurl = yield agent.resolve(url)
lru = url_to_lru_clean(rurl)
spider.resolved_links[url] = lru
except Exception, e:
spider.log("Error resolving redirects from URL %s: %s %s" % (url, type(e), e), log.INFO)
lrulinks.append(lru)
def process_item(self, item, spider):
lrulinks = []
for url, lru in item["lrulinks"]:
if self._should_resolve(lru, spider):
if url in spider.resolved_links:
lru = spider.resolved_links[url]
else:
try:
agent = ResolverAgent(proxy=self.proxy)
rurl = yield agent.resolve(url)
if rurl == url and has_prefix(lru, spider.discover_prefixes):
rurl = yield agent.resolve(url)
lru = url_to_lru_clean(rurl, TLDS_TREE)
spider.resolved_links[url] = lru
except Exception, e:
spider.log("Error resolving redirects from URL %s: %s %s" % (url, type(e), e), log.INFO)
lrulinks.append(lru)
def _should_follow(self, depth, fromlru, tolru):
c1 = depth < self.maxdepth
c2 = has_prefix(tolru, self.follow_prefixes)
c3 = not(has_prefix(tolru, self.nofollow_prefixes))
return c1 and c2 and c3
def _should_follow(self, depth, fromlru, tolru):
c1 = depth < self.maxdepth
c2 = has_prefix(tolru, self.follow_prefixes)
c3 = not (has_prefix(tolru, self.nofollow_prefixes))
return c1 and c2 and c3
def _should_resolve(self, lru, spider):
c1 = has_prefix(lru, spider.discover_prefixes)
c2 = has_prefix(lru, spider.follow_prefixes)
c3 = any((match in lru for match in ["url", "link", "redir", "target", "orig", "goto"]))
return c1 or (c2 and c3)
