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# File 'lib/ruby3mf/model3mf.rb', line 11
def self.parse(document, zip_entry)
model_doc = nil
Log3mf.context "parsing model" do |l|
begin
model_doc = XmlVal.validate_parse(zip_entry, SchemaFiles::SchemaTemplate)
rescue Nokogiri::XML::SyntaxError => e
l.fatal_error "Model file invalid XML. Exception #{e}"
end
l.context "verifying requiredextensions" do |l|
required_extensions = model_doc.css("//model")[0]["requiredextensions"]
if required_extensions
required_extensions.split(" ").each do |ns|
namespace_uri = model_doc.namespaces["xmlns:#{ns}"]
if namespace_uri
if VALID_EXTENSIONS.has_key? namespace_uri
l.info "Found a valid required extension: #{namespace_uri}"
else
l.error :unknown_required_extension, ext: namespace_uri
end
else
l.error :missing_extension_namespace_uri, ns: ns
end
end
end
end
l.context "verifying 3D payload required resources" do |l|
required_resources = model_doc.css("//model//resources//*[path]").collect { |n| n["path"] }
required_resources += model_doc.css("//model//resources//object[thumbnail]").collect { |n| n["thumbnail"] }
relationship_resources = []
rel_file = "#{Pathname(zip_entry.name).dirname.to_s}/_rels/#{File.basename(zip_entry.name)}.rels"
relationships = document.relationships[rel_file]
unless (relationships.nil?)
relationship_resources = relationships.map { |relationship| relationship[:target] }
end
missing_resources = (required_resources - relationship_resources)
if missing_resources.empty?
l.info "All model required resources are defined in .rels relationship files."
else
missing_resources.each { |mr|
l.error :model_resource_not_in_rels, mr: mr
}
end
l.context "verifying 3D resource types" do |l|
model_types = model_doc.css("//model//resources//*[path]").collect { |t| t["contenttype"] }
all_types = document.types.map { |t, v| v }
bad_types = (model_types - all_types)
if bad_types.empty?
l.info "All model resource contenttypes are valid"
else
bad_types.each { |bt|
l.error :resource_contentype_invalid, bt: bt
}
end
end
l.context "verifying StartPart relationship points to the root 3D Model" do |l|
root_rels = document.relationships['_rels/.rels']
unless root_rels.nil?
start_part_rel = root_rels.select { |rel| rel[:type] == Document::MODEL_TYPE }.first
unless start_part_rel.nil? || start_part_rel[:target] != '/' + zip_entry.name
l.fatal_error :invalid_startpart_target, :target => start_part_rel[:target] if model_doc.css("//model//resources//object").size == 0
end
else
l.fatal_error :missing_dot_rels_file
end
end
end
l.context 'verifying resources' do |l|
resources = find_child(model_doc.root, 'resources')
if resources
ids = resources.children.map { |child| child.attributes['id'].to_s if child.attributes['id'] }
l.error :resource_id_collision if ids.uniq.size != ids.size
pids = resources.children.map { |child| child.attributes['pid'].to_s }
missing_pids = pids.select { |pid| !pid.empty? and !ids.include? pid }
missing_pids.each do |p|
l.error :resource_pid_missing, pid: p
end
end
end
l.context "verifying build items" do |l|
build = find_child(model_doc.root, "build")
if build
items = build.children.map { |child| child.attributes["objectid"].to_s() if child.name == "item" }
resources = find_child(model_doc.root, "resources")
resources.children.each do |resource|
if resource.name == "object"
object_id = resource.attributes["id"].to_s()
l.error :build_with_other_item if resource.attributes["type"].to_s() == "other" and items.include?(object_id)
end
end
end
end
l.context "checking metadata" do |l|
metadata_names = model_doc.root.css("metadata").map { |met| met['name'] }
l.error :metadata_elements_with_same_name unless metadata_names.uniq!.nil?
unless (metadata_names - VALID_CORE_METADATA_NAMES).empty?
= metadata_names - VALID_CORE_METADATA_NAMES
ns_names = .select { |n| n.include? ':' }
l.error :invalid_metadata_under_defaultns unless ( - ns_names).empty?
unless ns_names.empty?
prefixes = model_doc.root.namespace_definitions.map { |defs| defs.prefix }.reject { |pre| pre.nil? }
l.error :invalid_metadata_name unless (ns_names.collect { |i| i.split(':').first } - prefixes).empty?
end
end
end
MeshAnalyzer.validate(model_doc)
end
model_doc
end
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