discourse/app/controllers/svg_sprite_controller.rb

93 lines
2.7 KiB
Ruby

# frozen_string_literal: true
class SvgSpriteController < ApplicationController
skip_before_action :preload_json,
:redirect_to_login_if_required,
:check_xhr,
:verify_authenticity_token,
only: %i[show search svg_icon]
before_action :apply_cdn_headers, only: %i[show search svg_icon]
requires_login except: %i[show svg_icon]
def show
no_cookies
RailsMultisite::ConnectionManagement.with_hostname(params[:hostname]) do
theme_id = params[:theme_id].to_i if params[:theme_id].present?
if SvgSprite.version(theme_id) != params[:version]
return redirect_to UrlHelper.absolute((SvgSprite.path(theme_id))), allow_other_host: true
end
svg_sprite = "window.__svg_sprite = #{SvgSprite.bundle(theme_id).inspect};"
response.headers["Last-Modified"] = 10.years.ago.httpdate
response.headers["Content-Length"] = svg_sprite.bytesize.to_s
immutable_for 1.year
render plain: svg_sprite, disposition: nil, content_type: "application/javascript"
end
end
def search
RailsMultisite::ConnectionManagement.with_hostname(params[:hostname]) do
keyword = params.require(:keyword)
data = SvgSprite.search(keyword)
if data.blank?
render body: nil, status: 404
else
render plain: data.inspect, disposition: nil, content_type: "text/plain"
end
end
end
def icon_picker_search
RailsMultisite::ConnectionManagement.with_hostname(params[:hostname]) do
params.permit(:filter, :only_available)
filter = params[:filter] || ""
only_available = params[:only_available]
icons = SvgSprite.icon_picker_search(filter, only_available)
render json: icons.take(200), root: false
end
end
def svg_icon
no_cookies
RailsMultisite::ConnectionManagement.with_hostname(params[:hostname]) do
params.permit(:color)
name = params.require(:name)
icon = SvgSprite.search(name)
if icon.blank?
render body: nil, status: 404
else
doc = Nokogiri.XML(icon)
doc.at_xpath("symbol").name = "svg"
doc.at_xpath("svg")["xmlns"] = "http://www.w3.org/2000/svg"
doc.at_xpath("svg")["fill"] = adjust_hex(params[:color]) if params[:color]
response.headers["Last-Modified"] = 1.years.ago.httpdate
response.headers["Content-Length"] = doc.to_s.bytesize.to_s
immutable_for 1.day
render plain: doc, disposition: nil, content_type: "image/svg+xml"
end
end
end
private
def adjust_hex(hex)
if hex.size == 3
chars = hex.scan(/\w/)
hex = chars.zip(chars).flatten.join
end
"##{hex}"
end
end