JezK
Edit File: content_disposition_parser.rl
# frozen_string_literal: true require 'mail/utilities' require 'mail/parser_tools' %%{ machine content_disposition; alphtype int; # Disposition Type action disp_type_s { disp_type_s = p } action disp_type_e { content_disposition.disposition_type = chars(data, disp_type_s, p-1).downcase } # Parameter Attribute action param_attr_s { param_attr_s = p } action param_attr_e { param_attr = chars(data, param_attr_s, p-1) } # Quoted String action qstr_s { qstr_s = p } action qstr_e { qstr = chars(data, qstr_s, p-1) } # Parameter Value action param_val_s { param_val_s = p } action param_val_e { if param_attr.nil? raise Mail::Field::ParseError.new(Mail::ContentDispositionElement, data, "no attribute for value") end # Use quoted string value if one exists, otherwise use parameter value value = qstr || chars(data, param_val_s, p-1) content_disposition.parameters << { param_attr => value } param_attr = nil qstr = nil } # No-op actions action comment_e { } action comment_s { } action phrase_e { } action phrase_s { } action main_type_e { } action main_type_s { } action sub_type_e { } action sub_type_s { } include rfc2183_content_disposition "rfc2183_content_disposition.rl"; main := disposition; }%% module Mail::Parsers module ContentDispositionParser extend Mail::ParserTools ContentDispositionStruct = Struct.new(:disposition_type, :parameters, :error) %%write data noprefix; def self.parse(data) data = data.dup.force_encoding(Encoding::ASCII_8BIT) if data.respond_to?(:force_encoding) content_disposition = ContentDispositionStruct.new('', []) return content_disposition if Mail::Utilities.blank?(data) # Parser state disp_type_s = param_attr_s = param_attr = qstr_s = qstr = param_val_s = nil # 5.1 Variables Used by Ragel p = 0 eof = pe = data.length stack = [] %%write init; %%write exec; if p != eof || cs < %%{ write first_final; }%% raise Mail::Field::IncompleteParseError.new(Mail::ContentDispositionElement, data, p) end content_disposition end end end