46 lines
1.1 KiB
Ruby
46 lines
1.1 KiB
Ruby
require 'fileutils'
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require 'application'
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require 'instiki_errors'
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class FileController < ApplicationController
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layout 'default', :except => [:rss_feed, :rss_with_headlines, :tex, :export_tex, :export_html]
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def file
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if have_file?
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send_file(file_path)
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else
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render_text 'form'
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end
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end
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private
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def have_file?
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sanitize_file_name
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File.file?(file_path)
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end
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SANE_FILE_NAME = /[-_A-Za-z0-9]{1,255}/
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def sanitize_file_name
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raise Instiki::ValidationError.new("Invalid path") unless @file_name
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unless @file_name =~ SANE_FILE_NAME
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raise ValidationError.new("Invalid file name: '#{@file_name}'.\n" +
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"Only latin characters, digits, underscores and dashes are accepted.")
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end
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end
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def file_area
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raise Instiki::ValidationError.new("Invalid path") unless @web_name
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file_area = File.expand_path("#{@wiki.storage_path}/#{@web_name}")
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FileUtils.mkdir_p(file_area) unless File.directory?(file_area)
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file_area
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end
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def file_path
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"#{file_area}/#{@file_name}"
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end
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end
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