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require 'mime' |
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2
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require 'mime/types' |
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3
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4
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module MIMEBuilder |
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class Filepath |
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attr_accessor :mime |
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7
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attr_accessor :filepath |
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8
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9
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# {:base64_encode bool, :content_type string, :content_id_disable bool} |
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10
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def initialize(filepath, opts={}) |
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11
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12
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if opts.key?(:base64_encode) && opts[:base64_encode] |
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@base64_encode = true |
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else |
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@base64_encode = false |
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end |
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18
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@mime = create_mime(filepath, opts[:content_id_disable]) |
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@mime.headers.set( |
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'Content-Type', |
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get_file_content_type(filepath, opts[:content_type]) |
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) |
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25
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set_attachment_content_disposition(opts[:is_attachment]) |
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end |
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def create_mime(filepath, content_id_disable) |
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bytes = read_file_bytes(filepath) |
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31
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mime = nil |
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32
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33
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if @base64_encode |
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mime = MIME::Text.new(Base64.encode64(bytes)) |
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mime.headers.set('Content-Transfer-Encoding', 'base64') |
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else |
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mime = MIME::Application.new(bytes) |
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end |
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39
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40
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mime.headers.delete('Content-Id') if content_id_disable |
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41
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42
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return mime |
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end |
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44
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45
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def read_file_bytes(filepath=nil) |
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46
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unless File.file?(filepath.to_s) |
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47
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raise "File \"#{filepath.to_s}\" does not exist or cannot be read" |
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48
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end |
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49
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50
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file_bytes = File.open(filepath, 'rb:BINARY') { |f| f.read } |
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51
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52
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return file_bytes |
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53
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end |
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54
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55
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def get_file_content_type(filepath=nil, content_type=nil) |
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56
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if content_type.is_a?(String) && content_type =~ %r{^[^/\s]+/[^/\s]+} |
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57
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return content_type |
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58
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end |
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59
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return MIME::Types.type_for(filepath).first.content_type \ |
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60
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|| 'application/octet-stream' |
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61
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end |
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62
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63
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def set_attachment_content_disposition(is_attachment) |
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64
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if is_attachment |
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65
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@mime.headers.set( |
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66
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'Content-Disposition', |
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67
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get_attachment_content_disposition(filepath) |
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68
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) |
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69
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end |
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end |
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71
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72
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def get_attachment_content_disposition(filepath=nil) |
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73
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filename = File.basename(filepath.to_s) |
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if filename.is_a?(String) && filename.length > 0 |
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75
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return "attachment; filename=\"#{filename}\"" |
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76
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end |
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77
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return 'attachment' |
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78
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end |
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79
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80
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end |
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end |
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grokify /
mime-builder-ruby
