mirror of
https://github.com/discourse/discourse.git
synced 2024-11-23 08:09:33 +08:00
57 lines
1.8 KiB
Ruby
57 lines
1.8 KiB
Ruby
# frozen_string_literal: true
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class Discourse::Cors
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ORIGINS_ENV = "Discourse_Cors_Origins"
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def initialize(app, options = nil)
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@app = app
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if GlobalSetting.enable_cors && GlobalSetting.cors_origin.present?
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@global_origins = GlobalSetting.cors_origin.split(',').map { |x| x.strip.chomp('/') }
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end
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end
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def call(env)
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cors_origins = @global_origins || []
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cors_origins += SiteSetting.cors_origins.split('|') if SiteSetting.cors_origins.present?
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cors_origins = cors_origins.presence
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if env['REQUEST_METHOD'] == ('OPTIONS') && env['HTTP_ACCESS_CONTROL_REQUEST_METHOD']
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return [200, Discourse::Cors.apply_headers(cors_origins, env, {}), []]
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end
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env[Discourse::Cors::ORIGINS_ENV] = cors_origins if cors_origins
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status, headers, body = @app.call(env)
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headers ||= {}
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Discourse::Cors.apply_headers(cors_origins, env, headers)
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[status, headers, body]
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end
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def self.apply_headers(cors_origins, env, headers)
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request_method = env['REQUEST_METHOD']
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if env['REQUEST_PATH'] =~ /\/(javascripts|assets)\// && Discourse.is_cdn_request?(env, request_method)
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Discourse.apply_cdn_headers(headers)
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elsif cors_origins
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origin = nil
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if origin = env['HTTP_ORIGIN']
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origin = nil unless cors_origins.include?(origin)
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end
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headers['Access-Control-Allow-Origin'] = origin || cors_origins[0]
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headers['Access-Control-Allow-Headers'] = 'Content-Type, Cache-Control, X-Requested-With, X-CSRF-Token, Discourse-Present, User-Api-Key, User-Api-Client-Id, Authorization'
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headers['Access-Control-Allow-Credentials'] = 'true'
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headers['Access-Control-Allow-Methods'] = 'POST, PUT, GET, OPTIONS, DELETE'
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end
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headers
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end
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end
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if GlobalSetting.enable_cors || GlobalSetting.cdn_url
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Rails.configuration.middleware.insert_before ActionDispatch::Flash, Discourse::Cors
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end
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