107 lines
3.9 KiB
Ruby
107 lines
3.9 KiB
Ruby
class UploadsController < ApplicationController
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before_filter :ensure_logged_in, except: [:show]
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skip_before_filter :preload_json, :check_xhr, :redirect_to_login_if_required, only: [:show]
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def create
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type = params.require(:type)
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file = params[:file] || params[:files].try(:first)
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url = params[:url]
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client_id = params[:client_id]
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synchronous = is_api? && params[:synchronous]
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if type == "avatar"
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if SiteSetting.sso_overrides_avatar || !SiteSetting.allow_uploaded_avatars
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return render json: failed_json, status: 422
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end
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end
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if synchronous
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data = create_upload(type, file, url)
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render json: data.as_json
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else
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Scheduler::Defer.later("Create Upload") do
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data = create_upload(type, file, url)
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MessageBus.publish("/uploads/#{type}", data.as_json, client_ids: [client_id])
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end
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render json: success_json
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end
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end
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def show
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return render_404 if !RailsMultisite::ConnectionManagement.has_db?(params[:site])
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RailsMultisite::ConnectionManagement.with_connection(params[:site]) do |db|
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return render_404 unless Discourse.store.internal?
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return render_404 if SiteSetting.prevent_anons_from_downloading_files && current_user.nil?
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return render_404 if SiteSetting.login_required? && db == "default" && current_user.nil?
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if upload = Upload.find_by(sha1: params[:sha]) || Upload.find_by(id: params[:id], url: request.env["PATH_INFO"])
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opts = { filename: upload.original_filename }
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opts[:disposition] = 'inline' if params[:inline]
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send_file(Discourse.store.path_for(upload), opts)
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else
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render_404
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end
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end
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end
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protected
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def render_404
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render nothing: true, status: 404
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end
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def create_upload(type, file, url)
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begin
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# ensure we have a file
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if file.nil?
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# API can provide a URL
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if url.present? && is_api?
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tempfile = FileHelper.download(url, 10.megabytes, "discourse-upload-#{type}") rescue nil
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filename = File.basename(URI.parse(url).path)
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end
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else
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tempfile = file.tempfile
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filename = file.original_filename
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content_type = file.content_type
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end
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return { errors: I18n.t("upload.file_missing") } if tempfile.nil?
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# allow users to upload (not that) large images that will be automatically reduced to allowed size
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uploaded_size = File.size(tempfile.path)
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if SiteSetting.max_image_size_kb > 0 && FileHelper.is_image?(filename) && uploaded_size > 0 && uploaded_size < 10.megabytes
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attempt = 2
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allow_animation = type == "avatar" ? SiteSetting.allow_animated_avatars : SiteSetting.allow_animated_thumbnails
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while attempt > 0
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downsized_size = File.size(tempfile.path)
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break if downsized_size > uploaded_size
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break if downsized_size < SiteSetting.max_image_size_kb.kilobytes
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image_info = FastImage.new(tempfile.path) rescue nil
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w, h = *(image_info.try(:size) || [0, 0])
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break if w == 0 || h == 0
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dimensions = "#{(w * 0.8).floor}x#{(h * 0.8).floor}"
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OptimizedImage.downsize(tempfile.path, tempfile.path, dimensions, filename: filename, allow_animation: allow_animation)
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attempt -= 1
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end
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end
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upload = Upload.create_for(current_user.id, tempfile, filename, File.size(tempfile.path), content_type: content_type, image_type: type)
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if upload.errors.empty? && current_user.admin?
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retain_hours = params[:retain_hours].to_i
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upload.update_columns(retain_hours: retain_hours) if retain_hours > 0
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end
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if upload.errors.empty? && FileHelper.is_image?(filename)
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Jobs.enqueue(:create_thumbnails, upload_id: upload.id, type: type, user_id: params[:user_id])
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end
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upload.errors.empty? ? upload : { errors: upload.errors.values.flatten }
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ensure
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tempfile.try(:close!) rescue nil
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end
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end
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end
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