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# Redmine - project management software
# Copyright (C) 2006-2015 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
require 'digest/md5'
module Redmine
module WikiFormatting
class StaleSectionError < Exception; end
@@formatters = {}
class << self
def map
yield self
end
def register(name, *args)
options = args.last.is_a?(Hash) ? args.pop : {}
name = name.to_s
raise ArgumentError, "format name '#{name}' is already taken" if @@formatters[name]
formatter, helper, parser = args.any? ?
args :
%w(Formatter Helper HtmlParser).map {|m| "Redmine::WikiFormatting::#{name.classify}::#{m}".constantize rescue nil}
raise "A formatter class is required" if formatter.nil?
@@formatters[name] = {
:formatter => formatter,
:helper => helper,
:html_parser => parser,
:label => options[:label] || name.humanize
}
end
def formatter
formatter_for(Setting.text_formatting)
end
def html_parser
html_parser_for(Setting.text_formatting)
end
def formatter_for(name)
entry = @@formatters[name.to_s]
(entry && entry[:formatter]) || Redmine::WikiFormatting::NullFormatter::Formatter
end
def helper_for(name)
entry = @@formatters[name.to_s]
(entry && entry[:helper]) || Redmine::WikiFormatting::NullFormatter::Helper
end
def html_parser_for(name)
entry = @@formatters[name.to_s]
(entry && entry[:html_parser]) || Redmine::WikiFormatting::HtmlParser
end
def format_names
@@formatters.keys.map
end
def formats_for_select
@@formatters.map {|name, options| [options[:label], name]}
end
def to_html(format, text, options = {})
text = if Setting.cache_formatted_text? && text.size > 2.kilobyte && cache_store && cache_key = cache_key_for(format, text, options[:object], options[:attribute])
# Text retrieved from the cache store may be frozen
# We need to dup it so we can do in-place substitutions with gsub!
cache_store.fetch cache_key do
formatter_for(format).new(text).to_html
end.dup
else
formatter_for(format).new(text).to_html
end
text
end
# Returns true if the text formatter supports single section edit
def supports_section_edit?
(formatter.instance_methods & ['update_section', :update_section]).any?
end
# Returns a cache key for the given text +format+, +text+, +object+ and +attribute+ or nil if no caching should be done
def cache_key_for(format, text, object, attribute)
if object && attribute && !object.new_record? && format.present?
"formatted_text/#{format}/#{object.class.model_name.cache_key}/#{object.id}-#{attribute}-#{Digest::MD5.hexdigest text}"
end
end
# Returns the cache store used to cache HTML output
def cache_store
ActionController::Base.cache_store
end
end
module LinksHelper
AUTO_LINK_RE = %r{
( # leading text
<\w+[^>]*?>| # leading HTML tag, or
[\s\(\[,;]| # leading punctuation, or
^ # beginning of line
)
(
(?:https?://)| # protocol spec, or
(?:s?ftps?://)|
(?:www\.) # www.*
)
(
([^<]\S*?) # url
(\/)? # slash
)
((?:>)?|[^[:alnum:]_\=\/;\(\)]*?) # post
(?=<|\s|$)
}x unless const_defined?(:AUTO_LINK_RE)
# Destructively replaces urls into clickable links
def auto_link!(text)
text.gsub!(AUTO_LINK_RE) do
all, leading, proto, url, post = $&, $1, $2, $3, $6
if leading =~ /<a\s/i || leading =~ /![<>=]?/
# don't replace URLs that are already linked
# and URLs prefixed with ! !> !< != (textile images)
all
else
# Idea below : an URL with unbalanced parenthesis and
# ending by ')' is put into external parenthesis
if ( url[-1]==?) and ((url.count("(") - url.count(")")) < 0 ) )
url=url[0..-2] # discard closing parenthesis from url
post = ")"+post # add closing parenthesis to post
end
content = proto + url
href = "#{proto=="www."?"http://www.":proto}#{url}"
%(#{leading}<a class="external" href="#{ERB::Util.html_escape href}">#{ERB::Util.html_escape content}</a>#{post}).html_safe
end
end
end
# Destructively replaces email addresses into clickable links
def auto_mailto!(text)
text.gsub!(/([\w\.!#\$%\-+.\/]+@[A-Za-z0-9\-]+(\.[A-Za-z0-9\-]+)+)/) do
mail = $1
if text.match(/<a\b[^>]*>(.*)(#{Regexp.escape(mail)})(.*)<\/a>/)
mail
else
%(<a class="email" href="mailto:#{ERB::Util.html_escape mail}">#{ERB::Util.html_escape mail}</a>).html_safe
end
end
end
end
# Default formatter module
module NullFormatter
class Formatter
include ActionView::Helpers::TagHelper
include ActionView::Helpers::TextHelper
include ActionView::Helpers::UrlHelper
include Redmine::WikiFormatting::LinksHelper
def initialize(text)
@text = text
end
def to_html(*args)
t = CGI::escapeHTML(@text)
auto_link!(t)
auto_mailto!(t)
simple_format(t, {}, :sanitize => false)
end
end
module Helper
def wikitoolbar_for(field_id)
end
def heads_for_wiki_formatter
end
def initial_page_content(page)
page.pretty_title.to_s
end
end
end
end
end
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