discourse/lib/middleware/missing_avatars.rb

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# frozen_string_literal: true
module Middleware
# In development mode, it is common to use a database from a production site for testing
# with their data. Unfortunately, you can end up with dozens of missing avatar requests
# due to the files not being present locally. This middleware, only enabled in development
# mode, will replace those with an appropriate image.
class MissingAvatars
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def initialize(app, settings = {})
@app = app
end
def call(env)
if (env['REQUEST_PATH'] =~ /^\/uploads\/default\/avatars/)
path = "#{Rails.root}/public#{env['REQUEST_PATH']}"
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unless File.exist?(path)
default_image = "#{Rails.root}/public/images/d-logo-sketch-small.png"
return [ 200, { 'Content-Type' => 'image/png' }, [ File.read(default_image)] ]
end
end
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status, headers, response = @app.call(env)
[status, headers, response]
end
end
end