class OpenXml::Docx::Package
Attributes
document[R]
fonts[R]
headers[R]
image_names[R]
numbering[R]
settings[R]
styles[R]
Public Class Methods
new()
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Calls superclass method
# File lib/openxml/docx/package.rb, line 30 def initialize super rels.add_relationship REL_DOCUMENT, "/word/document.xml" @settings = OpenXml::Docx::Parts::Settings.new @styles = OpenXml::Docx::Parts::Styles.new @fonts = OpenXml::Docx::Parts::Fonts.new @numbering = OpenXml::Docx::Parts::Numbering.new @document = OpenXml::Docx::Parts::Document.new @headers = [] @footers = [] @image_names = [] document.relationships.add_relationship REL_STYLES, "styles.xml" document.relationships.add_relationship REL_SETTINGS, "settings.xml" document.relationships.add_relationship REL_FONT_TABLE, "fontTable.xml" document.relationships.add_relationship REL_NUMBERING, "numbering.xml" add_part "word/_rels/document.xml.rels", document.relationships add_part "word/_rels/fontTable.xml.rels", fonts.relationships add_part "word/document.xml", document add_part "word/settings.xml", settings add_part "word/styles.xml", styles add_part "word/fontTable.xml", fonts add_part "word/numbering.xml", numbering end
Public Instance Methods
add_header(header)
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# File lib/openxml/docx/package.rb, line 102 def add_header(header) headers << header header_name = "header#{headers.count}.xml" content_types.add_override "/word/#{header_name}", TYPE_HEADER add_part "word/#{header_name}", header add_part "word/_rels/#{header_name}.rels", header.relationships relationship = document.relationships.add_relationship REL_HEADER, header_name relationship.id end
embed_image(path: nil, content_type: nil, into_part: nil)
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# File lib/openxml/docx/package.rb, line 75 def embed_image(path: nil, content_type: nil, into_part: nil) return if path.nil? extension_match = path.match(/\.(?<extension>[^\.]+?)(?:\?.+)?$/) content_type ||= extension_match[:extension] if extension_match return if content_type.nil? URI.open(path, "rb") do |source_image| embed_image_data(data: source_image.read, content_type: content_type, into_part: into_part) end end
embed_image_data(data: nil, content_type: nil, into_part: nil)
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# File lib/openxml/docx/package.rb, line 87 def embed_image_data(data: nil, content_type: nil, into_part: nil) return if data.nil? || content_type.nil? into_part = document unless into_part.respond_to?(:relationships) content_type = "jpeg" if content_type == "jpg" content_type = content_type.to_sym destination_image_name = "image#{image_names.count + 1}.#{content_type}" add_part "word/media/#{destination_image_name}", OpenXml::Parts::UnparsedPart.new(data) image_names << destination_image_name image_relationship = into_part.relationships.add_relationship REL_IMAGE, "media/#{destination_image_name}" image_relationship.id end
embed_truetype_font(path: nil, name: nil)
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# File lib/openxml/docx/package.rb, line 57 def embed_truetype_font(path: nil, name: nil) URI.open(path, "rb") do |source_font| obfuscation_data = obfuscate_font source_font data = obfuscation_data[:bytes] << source_font.read destination_font_name = "font#{fonts.fonts.count + 1}.odttf" add_part "word/fonts/#{destination_font_name}", OpenXml::Parts::UnparsedPart.new(data) font_relationship = fonts.relationships.add_relationship REL_FONT, "fonts/#{destination_font_name}" font_description = OpenXml::Docx::Elements::Font.new font_description.font_name = name embed_tag = OpenXml::Docx::Elements::EmbedRegular.new embed_tag.font_key = "{#{obfuscation_data[:key]}}" embed_tag.relationship_id = font_relationship.id font_description << embed_tag fonts << font_description end end
Private Instance Methods
obfuscate_font(font)
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# File lib/openxml/docx/package.rb, line 124 def obfuscate_font(font) # From the OpenXml spec, section 17.8.1, the algorithm for obfuscating a font: # - Generate a GUID, which is used and stored as the obfuscation key # - Reverse the order of the bytes in the GUID (i.e. Big Endian ordering) # - XOR the value with the first 32 bytes of the binary: once against 0-15, once against 16-31 # - Store the resulting file in the document, and store the obfuscation key in the fontKey attribute key = SecureRandom::uuid.upcase # Spec requires hex characters be uppercase raw_key = key.gsub("-", "") big_endian_key = [raw_key].pack("H*").bytes.reverse obfuscated_bytes = [] 2.times do bytes = font.read(16).bytes (0...16).each do |index| obfuscated_bytes << (bytes[index] ^ big_endian_key[index]) end end { key: key, bytes: obfuscated_bytes.pack("C*") } end