sjdonado
e67ed7165b
- return tuple directly from the block - avoid to parse remote_address in the main thread - avoid to replace headers, add only - avoid separate variables for one-single use
49 lines
1.7 KiB
Crystal
49 lines
1.7 KiB
Crystal
require "user_agent_parser"
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UserAgent.load_regexes(File.read("data/uap_core_regexes.yaml"))
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IpLookup.load_mmdb("data/GeoLite2-Country.mmdb")
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module App::Controllers
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struct ClickController
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include App::Models
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include App::Lib
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include App::Services
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def self.redirect_handler
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->(env : HTTP::Server::Context) {
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link_id, url = Database.raw_query("SELECT id, url FROM links WHERE slug = (?) LIMIT 1", env.params.url["slug"]) do |result|
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result.move_next ? {result.read(Int64), result.read(String)} : nil
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end || raise App::NotFoundException.new(env)
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remote_address = env.request.headers["Cf-Connecting-Ip"]? || env.request.remote_address.to_s
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env.response.status_code = 301
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env.response.headers.add("Location", url)
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env.response.headers.add("X-Forwarded-For", remote_address)
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spawn do
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begin
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client_ip = IpLookup.ip_from_address(remote_address)
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user_agent_str = env.request.headers["User-Agent"]?
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referer = env.request.headers["Referer"]?.try { |r| URI.parse(r).host rescue r } || env.params.query["utm_source"]? || "Direct"
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ua_parser = user_agent_str ? UserAgent.new(user_agent_str) : nil
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click = App::Models::Click.new
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click.link_id = link_id
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click.country = client_ip ? IpLookup.new(client_ip).try(&.country.try(&.code)) : nil
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click.user_agent = user_agent_str
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click.browser = ua_parser.try(&.family)
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click.os = ua_parser.try(&.os.try(&.family))
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click.referer = referer
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Database.insert(click)
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rescue ex
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Log.error { "Click tracking error: #{ex.message}" }
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end
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end
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}
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end
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end
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end
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