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1 | # The Mail class represents an internet mail message (as per RFC822, RFC2822)
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2 | # with headers and a body.
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3 | class Mail
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4 |
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5 | # Create a new Mail where +f+ is either a stream which responds to gets(),
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6 | # or a path to a file. If +f+ is a path it will be opened.
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7 | #
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8 | # The whole message is read so it can be made available through the #header,
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9 | # #[] and #body methods.
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10 | #
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11 | # The "From " line is ignored if the mail is in mbox format.
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12 | def initialize(f)
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13 | unless defined? f.gets
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14 | f = open(f, "r")
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15 | opened = true
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16 | end
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17 |
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18 | @header = {}
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19 | @body = []
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20 | begin
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21 | while line = f.gets()
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22 | line.chop!
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23 | next if /^From /=~line # skip From-line
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24 | break if /^$/=~line # end of header
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25 |
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26 | if /^(\S+?):\s*(.*)/=~line
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27 | (attr = $1).capitalize!
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28 | @header[attr] = $2
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29 | elsif attr
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30 | line.sub!(/^\s*/, '')
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31 | @header[attr] += "\n" + line
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32 | end
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33 | end
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34 |
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35 | return unless line
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36 |
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37 | while line = f.gets()
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38 | break if /^From /=~line
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39 | @body.push(line)
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40 | end
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41 | ensure
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42 | f.close if opened
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43 | end
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44 | end
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45 |
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46 | # Return the headers as a Hash.
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47 | def header
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48 | return @header
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49 | end
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50 |
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51 | # Return the message body as an Array of lines
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52 | def body
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53 | return @body
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54 | end
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55 |
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56 | # Return the header corresponding to +field+.
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57 | #
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58 | # Matching is case-insensitive.
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59 | def [](field)
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60 | @header[field.capitalize]
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61 | end
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62 | end
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