Mike Dalessio
bcb43305b6
- redirect avatar image requests to the rails_blob_url, instead of streaming them through the web app - use a thumbnail variant for avatar images - only put avatar initials behind the stale? check (not the image redirect, which would result in browsers rendering broken images when an avatar is changed, until max-age expires)
43 lines
948 B
Ruby
43 lines
948 B
Ruby
class Users::AvatarsController < ApplicationController
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include ActiveStorage::Streaming
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allow_unauthenticated_access only: :show
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before_action :set_user
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before_action :ensure_permission_to_administer_user, only: :destroy
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def show
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if @user.avatar.attached?
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redirect_to rails_blob_url(@user.avatar.variant(:thumb), disposition: "inline")
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elsif stale? @user, cache_control: cache_control
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render_initials
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end
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end
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def destroy
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@user.avatar.destroy
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redirect_to @user
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end
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private
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def set_user
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@user = Current.account.users.find(params[:user_id])
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end
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def ensure_permission_to_administer_user
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head :forbidden unless Current.user.can_change?(@user)
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end
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def cache_control
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if @user == Current.user
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{}
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else
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{ max_age: 30.minutes, stale_while_revalidate: 1.week }
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end
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end
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def render_initials
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render formats: :svg
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end
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end
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