instiki/app/controllers/file_controller.rb

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require 'fileutils'
require 'application'
require 'instiki_errors'
# Controller that is responsible for serving files and pictures.
# Disabled in version 0.10
class FileController < ApplicationController
layout 'default'
before_filter :check_allow_uploads
def file
check_path
if @params['file']
# form supplied
file_yard.upload_file(@file_name, @params['file'])
flash[:info] = "File '#{@file_name}' successfully uploaded"
@web.refresh_pages_with_references(@file_name)
return_to_last_remembered
elsif file_yard.has_file?(@file_name)
send_file(file_yard.file_path(@file_name))
else
logger.debug("File not found: #{file_yard.files_path}/#{@file_name}")
# go to the template, which is a file upload form
end
end
def cancel_upload
return_to_last_remembered
end
def pic
check_path
if @params['file']
# form supplied
file_yard.upload_file(@file_name, @params['file'])
flash[:info] = "Image '#{@file_name}' successfully uploaded"
@web.refresh_pages_with_references(@file_name)
return_to_last_remembered
elsif file_yard.has_file?(@file_name)
send_file(file_yard.file_path(@file_name))
else
logger.debug("Image not found: #{file_yard.files_path}/#{@file_name}")
render_action 'file'
end
end
def import
return if file_uploads_disabled?
check_authorization
if @params['file']
@problems = []
import_file_name = "#{@web.address}-import-#{Time.now.strftime('%Y-%m-%d-%H-%M-%S')}.zip"
file_yard.upload_file(import_file_name, @params['file'])
import_from_archive(file_yard.file_path(import_file_name))
if @problems.empty?
flash[:info] = 'Import successfully finished'
else
flash[:info] = "Import finished, but some pages were not imported:<li>" +
@problems.join('</li><li>') + '</li>'
end
return_to_last_remembered
else
# to template
end
end
protected
def check_allow_uploads
# TODO enable file uploads again after 0.10 release
unless RAILS_ENV == 'test'
render_text 'File uploads are not ready for general use in Instiki 0.10', '403 Forbidden'
return false
end
unless @web.allow_uploads
render_text 'File uploads are blocked by the webmaster', '403 Forbidden'
return false
end
end
private
def check_path
raise Instiki::ValidationError.new("Invalid path: no file name") unless @file_name
raise Instiki::ValidationError.new("Invalid path: no web name") unless @web_name
raise Instiki::ValidationError.new("Invalid path: unknown web name") unless @web
end
def file_yard
@wiki.file_yard(@web)
end
def import_from_archive(archive)
logger.info "Importing pages from #{archive}"
zip = Zip::ZipInputStream.open(archive)
while (entry = zip.get_next_entry) do
ext_length = File.extname(entry.name).length
page_name = entry.name[0..-(ext_length + 1)]
page_content = entry.get_input_stream.read
logger.info "Processing page '#{page_name}'"
begin
existing_page = @wiki.read_page(@web.address, page_name)
if existing_page
if existing_page.content == page_content
logger.info "Page '#{page_name}' with the same content already exists. Skipping."
next
else
logger.info "Page '#{page_name}' already exists. Adding a new revision to it."
wiki.revise_page(@web.address, page_name, page_content, Time.now, @author)
end
else
wiki.write_page(@web.address, page_name, page_content, Time.now, @author)
end
rescue => e
logger.error(e)
@problems << "#{page_name} : #{e.message}"
end
end
logger.info "Import from #{archive} finished"
end
end