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Right now, this includes three endpoints: host-meta, webfinger, and change-password. host-meta and webfinger are publicly available and do not use any authentication. Nothing bad can be done by accessing them in a user's browser. change-password being CORS-enabled will only reveal the URL it redirects to (which is /auth/edit) but not anything about the actual /auth/edit page, because it does not have CORS enabled. The documentation for hosting an instance on a different domain should also be updated to point out that Access-Control-Allow-Origin: * should be set at a minimum for the /.well-known/host-meta redirect to allow browser-based non-proxied instance discovery.
31 lines
904 B
Ruby
31 lines
904 B
Ruby
# Be sure to restart your server when you modify this file.
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# Avoid CORS issues when API is called from the frontend app.
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# Handle Cross-Origin Resource Sharing (CORS) in order to accept cross-origin AJAX requests.
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# Read more: https://github.com/cyu/rack-cors
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Rails.application.config.middleware.insert_before 0, Rack::Cors do
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allow do
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origins '*'
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resource '/.well-known/*',
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headers: :any,
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methods: [:get],
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credentials: false
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resource '/@:username',
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headers: :any,
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methods: [:get],
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credentials: false
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resource '/api/*',
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headers: :any,
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methods: [:post, :put, :delete, :get, :patch, :options],
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credentials: false,
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expose: ['Link', 'X-RateLimit-Reset', 'X-RateLimit-Limit', 'X-RateLimit-Remaining', 'X-Request-Id']
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resource '/oauth/token',
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headers: :any,
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methods: [:post],
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credentials: false
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end
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end
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