mirror of
https://github.com/discourse/discourse.git
synced 2024-11-27 13:43:41 +08:00
f6fdc1ebe8
You can use the crawler user agents site setting to amend what user agents are considered crawlers based on a string match in the user agent Also improves performance of crawler detection slightly
18 lines
820 B
Ruby
18 lines
820 B
Ruby
module CrawlerDetection
|
|
|
|
# added 'ia_archiver' based on https://meta.discourse.org/t/unable-to-archive-discourse-pages-with-the-internet-archive/21232
|
|
# added 'Wayback Save Page' based on https://meta.discourse.org/t/unable-to-archive-discourse-with-the-internet-archive-save-page-now-button/22875
|
|
# added 'Swiftbot' based on https://meta.discourse.org/t/how-to-add-html-markup-or-meta-tags-for-external-search-engine/28220
|
|
def self.to_matcher(string)
|
|
escaped = string.split('|').map { |agent| Regexp.escape(agent) }.join('|')
|
|
Regexp.new(escaped)
|
|
end
|
|
|
|
def self.crawler?(user_agent)
|
|
# this is done to avoid regenerating regexes
|
|
@matchers ||= {}
|
|
matcher = (@matchers[SiteSetting.crawler_user_agents] ||= to_matcher(SiteSetting.crawler_user_agents))
|
|
matcher.match?(user_agent)
|
|
end
|
|
end
|