discourse/lib/current_user.rb

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module CurrentUser
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def self.lookup_from_env(env)
request = Rack::Request.new(env)
auth_token = request.cookies["_t"]
user = nil
if auth_token && auth_token.length == 32
user = User.where(auth_token: auth_token).first
end
return user
end
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def current_user
return @current_user if @current_user || @not_logged_in
if session[:current_user_id].blank?
# maybe we have a cookie?
auth_token = cookies[:_t]
if auth_token && auth_token.length == 32
@current_user = User.where(auth_token: auth_token).first
session[:current_user_id] = @current_user.id if @current_user
end
else
@current_user ||= User.where(id: session[:current_user_id]).first
end
if @current_user && @current_user.is_banned?
@current_user = nil
end
@not_logged_in = session[:current_user_id].blank?
if @current_user
@current_user.update_last_seen!
if (@current_user.ip_address != request.remote_ip) and request.remote_ip.present?
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@current_user.ip_address = request.remote_ip
@current_user.update_column(:ip_address, request.remote_ip)
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end
end
@current_user
end
end