mirror of
https://github.com/scinote-eln/scinote-web.git
synced 2024-09-21 15:36:22 +08:00
126 lines
2.9 KiB
Ruby
126 lines
2.9 KiB
Ruby
class AssetsController < ApplicationController
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before_action :load_vars, except: [:signature]
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before_action :check_read_permission, except: [:signature]
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def signature
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respond_to do |format|
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format.json {
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if params[:asset_id]
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asset = Asset.find_by_id params[:asset_id]
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asset.file.destroy
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asset.file_empty params[:file_name], params[:file_size]
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else
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asset = Asset.new_empty params[:file_name], params[:file_size]
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end
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if not asset.valid?
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errors = Hash[asset.errors.map{|k,v| ["asset.#{k}",v]}]
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render json: {
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status: 'error',
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errors: errors
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}
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else
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asset.save!
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posts = generate_upload_posts asset
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render json: {
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asset_id: asset.id,
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posts: posts
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}
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end
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}
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end
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end
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def preview
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if @asset.is_image?
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url = @asset.file.url :medium
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redirect_to url, status: 307
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else
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render_400
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end
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end
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def download
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if @asset.file.is_stored_on_s3?
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redirect_to @asset.presigned_url, status: 307
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else
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send_file @asset.file.path, filename: @asset.file_file_name,
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type: @asset.file_content_type
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end
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end
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private
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def load_vars
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@asset = Asset.find_by_id(params[:id])
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unless @asset
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render_404
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end
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step_assoc = @asset.step
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result_assoc = @asset.result
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@assoc = step_assoc if not step_assoc.nil?
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@assoc = result_assoc if not result_assoc.nil?
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@my_module = @assoc.my_module
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@project = @my_module.project
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end
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def check_read_permission
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if @assoc.class == Step
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unless can_download_step_assets(@my_module)
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render_403
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end
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elsif @assoc.class == Result
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unless can_download_result_assets(@my_module)
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render_403
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end
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end
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end
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def generate_upload_posts(asset)
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posts = []
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s3_post = S3_BUCKET.presigned_post(
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key: asset.file.path[1..-1],
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success_action_status: '201',
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acl: 'private',
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storage_class: "STANDARD",
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content_length_range: 1..(1024*1024*50),
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content_type: asset.file_content_type
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)
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posts.push({
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url: s3_post.url,
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fields: s3_post.fields
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})
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if (asset.file_content_type =~ /^image\//) == 0
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asset.file.options[:styles].each do |style, option|
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s3_post = S3_BUCKET.presigned_post(
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key: asset.file.path(style)[1..-1],
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success_action_status: '201',
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acl: 'public-read',
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storage_class: "REDUCED_REDUNDANCY",
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content_length_range: 1..(1024*1024*50),
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content_type: asset.file_content_type
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)
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posts.push({
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url: s3_post.url,
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fields: s3_post.fields,
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style_option: option,
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mime_type: asset.file_content_type
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})
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end
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end
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posts
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end
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end
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