# More information: # * {EPF Wiki Data model}[link:files/doc/DATAMODEL.html] #--###################################################################### # Copyright (c) 2006 Logica # Copyright (c) 2008 IBM # # All rights reserved. This program and the accompanying materials # are made available under the terms of the Eclipse Public License v1.0 # which accompanies this distribution, and is available at # http://www.eclipse.org/legal/epl-v10.html # # Contributors: # # Onno van der Straaten:: initial implementation # Ricardo Balduino:: tweaked method that returns brief description of UMA elements (overviewTable) #++###################################################################### # {Copyright (c) 2006 Logica, 2008 IBM.}[link:files/COPYRIGHT.html] class Page < ActiveRecord::Base belongs_to :site #, :dependent => :destroy validates_format_of :status, :with => /N.A|New|Updated|Undetermined|RemovedOrMoved|Harvested/ validates_format_of :tool, :with => /EPFC|Wiki/ validates_presence_of :rel_path, :site #, :presentation_name, :uma_type, :filename #validates_length_of :filename, :maximum => 250 #validates_length_of :uma_type, :maximum => 100 #validates_length_of :presentation_name, :maximum => 500 validates_length_of :rel_path, :maximum => 250 # For creating a new page, use to specify the source version of the template or page # NOTE: depending where it is used (view or model) this stores an Id or and object. attr_accessor :source_version # For creating a new page, use to specify the user attr_accessor :user # When creating a new page, use to supply a note for creating the version attr_accessor :note # Used to remove HTML fragment that wikifies the HTML file so it can be edited. PAGE_HEAD_SNIPPET_PATTERN = //m # Used to replace treebrowser.js from HTML files because it chrashes the HTML editor TREEBROWSER_PATTERN = //i # Placeholder for TREEBROWSER_PATTERN , so we can easily place it back in the file TREEBROWSER_PLACEHOLDER = "
" # Used to remove onload event from HTML files because it chrashed the HTML Editor BODY_TAG_PATTERN = //i # Used to add the page_script BODY_CLOSING_TAG_PATTERN = /<\/body>/i # Used to fix some layout problems with the 'horizontal rule' SHIM_TAG_PATTERN = /images\/shim.gif(")?( )*\/?>.?( )*?.?( )*?<\/td>/im # Used to fix some layout problems with the 'horizontal rule' SHIM_TAG = "images/shim.gif\" />" # Used to replace copyright notice from the file so it can be edited. COPYRIGHT_PATTERN = /

( )*?(.)?( )*?copyright(.)*?<\/p>/im # Placeholder for copyright notice we find with COPYRIGHT_PATTERN COPYRIGHT_PLACEHOLDER = "" TITLE_PATTERN = /(.)*<\/title>/i HEAD_PATTERN = /<head>(.)*<\/head>/im TITLE2_PATTERN = /class="pageTitle">(.)*<\/td>/ # TODO use regular expressions the right way TITLE2_START = /class="pageTitle">/i TITLE2_END = /<\/td>/ ELEMENT_TYPE_PATTERN = /<meta(.)*element_type(.)*>/i def self.get_snippets return [IO.readlines(File.expand_path('app/models/page_head_snippet.txt', RAILS_ROOT)).join] end # Method #enhance_file enhances a file if it hasn't been enhanced yet # with e.g. Javascript libs, CSS, (script) elements def self.enhance_file(path, snippets = Page.get_snippets) s = "<!-- epfwiki head start --> <script src=\"http://#{ENV['EPFWIKI_HOST']}/javascripts/prototype.js\" type=\"text/javascript\" language=\"JavaScript\"></script> <link href=\"http://#{ENV['EPFWIKI_HOST']}/stylesheets/wiki.css\" media=\"screen\" rel=\"Stylesheet\" type=\"text/css\" /> <script src=\"http://#{ENV['EPFWIKI_HOST']}/javascripts/wiki.js\" type=\"text/javascript\" language=\"JavaScript\"></script> <!-- epfwiki head end -->" h = IO.readlines(path).join if h.index('epfwiki head start') logger.info("File skipped (already enhanced): #{path}") else new_html = h.gsub(/<\/head>/i, s + "\n</head>") new_html = new_html.gsub("width=\"100%\"", "width=\"99%\"") # workaround to prevent scrollbar from being displayed file = File.new(path, "w") file.puts(new_html) file.close end end def path return self.site.path + '/' + self.rel_path end def html IO.readlines(self.path).join end def url(absolute = false, request_host = nil) self.site.url(absolute, request_host).gsub('/index.htm','/') + self.rel_path end # extracts and returns the UMA Presentation Name from HTML def self.uma_presentation_name_from_html(html) return uma_value_from_html(html, /<meta.*? name="uma\.presentationName".*?>/) end # UMA Name from HTML def self.uma_name_from_html(html) return uma_value_from_html(html, /<meta.*? name="uma\.name".*?>/) end # UMA Type from HTML def self.uma_type_from_html(html) return uma_value_from_html(html, /<meta.*? name="uma\.type".*?>/) end # Order of content and name does not seem to be always the same? # So this method is independent of order def self.uma_value_from_html(html, pattern) match = pattern.match(html) result = '' if match match2 = /content="(.*?)"/.match(match[0]) result = match2[1] if match2 end return result end def overview_table match = /class="overviewTable".*?>(.*?)<\/table>/m.match(self.html) if match # some pages may not have overviewTable section match1 = /td.*?>(.*?)<\/td>/m.match(match[1]) # returns only the text from the overviewTable section if match1 result = match1[1] end else result = "" end return result end def validate_on_create if self.tool == 'Wiki' errors.add(:rel_path, "already used; can\'t create another page with relative path #{self.rel_path}") if Page.exists?(['rel_path = ? and site_id = ?',self.rel_path, self.site.id]) end end def before_create h = self.html self.uma_type = Page.uma_type_from_html(h) self.uma_name = Page.uma_name_from_html(h) logger.debug("...#{Page.uma_presentation_name_from_html(h)}") self.presentation_name = Page.uma_presentation_name_from_html(h) self.filename = File.basename(self.path) self.body_tag = BODY_TAG_PATTERN.match(h).to_s self.treebrowser_tag = TREEBROWSER_PATTERN.match(h).to_s self.copyright_tag = COPYRIGHT_PATTERN.match(h).to_s self.head_tag = Page::HEAD_PATTERN.match(h).to_s end end