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1 ;;; mailpost.el --- RMAIL coupler to /usr/uci/post mailer
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2
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3 ;; This is in the public domain
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4 ;; since Delp distributed it without a copyright notice in 1986.
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5
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6 ;;; Synched up with: FSF 19.30.
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7
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8 ;; Author: Gary Delp <delp@huey.Udel.Edu>
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9 ;; Maintainer: FSF
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10 ;; Created: 13 Jan 1986
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11 ;; Keywords: mail
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12
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13 ;;; Commentary:
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14
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15 ;; Yet another mail interface. this for the rmail system to provide
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16 ;; the missing sendmail interface on systems without /usr/lib/sendmail,
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17 ;; but with /usr/uci/post.
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18
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19 ;;; Code:
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20
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21 ;(require 'mailalias) ;; not in XEmacs
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22 (require 'sendmail)
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23
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24 ;; (setq send-mail-function 'post-mail-send-it)
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25
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26 (defun post-mail-send-it ()
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27 "The MH -post interface for `rmail-mail' to call.
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28 To use it, include \"(setq send-mail-function 'post-mail-send-it)\" in
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29 site-init."
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30 (let ((errbuf (if mail-interactive
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31 (generate-new-buffer " post-mail errors")
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32 0))
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33 (temfile "/tmp/,rpost")
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34 (tembuf (generate-new-buffer " post-mail temp"))
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35 (case-fold-search nil)
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36 delimline
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37 (mailbuf (current-buffer)))
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38 (unwind-protect
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39 (save-excursion
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40 (set-buffer tembuf)
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41 (erase-buffer)
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42 (insert-buffer-substring mailbuf)
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43 (goto-char (point-max))
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44 ;; require one newline at the end.
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45 (or (= (preceding-char) ?\n)
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46 (insert ?\n))
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47 ;; Change header-delimiter to be what post-mail expects.
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48 (goto-char (point-min))
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49 (search-forward (concat "\n" mail-header-separator "\n"))
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50 (replace-match "\n\n")
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51 (backward-char 1)
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52 (setq delimline (point-marker))
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53 ;; XEmacs: expand-mail-aliases doesn't exist.
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54 (if (and mail-aliases (fboundp 'expand-mail-aliases))
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55 (expand-mail-aliases (point-min) delimline))
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56 (goto-char (point-min))
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57 ;; ignore any blank lines in the header
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58 (while (and (re-search-forward "\n\n\n*" delimline t)
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59 (< (point) delimline))
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60 (replace-match "\n"))
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61 ;; Find and handle any FCC fields.
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62 (let ((case-fold-search t))
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63 (goto-char (point-min))
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64 (if (re-search-forward "^FCC:" delimline t)
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65 (mail-do-fcc delimline))
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66 ;; If there is a From and no Sender, put it a Sender.
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67 (goto-char (point-min))
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68 (and (re-search-forward "^From:" delimline t)
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69 (not (save-excursion
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70 (goto-char (point-min))
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71 (re-search-forward "^Sender:" delimline t)))
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72 (progn
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73 (forward-line 1)
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74 (insert "Sender: " (user-login-name) "\n")))
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75 ;; don't send out a blank subject line
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76 (goto-char (point-min))
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77 (if (re-search-forward "^Subject:[ \t]*\n" delimline t)
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78 (replace-match ""))
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79 (if mail-interactive
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80 (save-excursion
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81 (set-buffer errbuf)
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82 (erase-buffer))))
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83 (write-file (setq temfile (make-temp-name temfile)))
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84 (set-file-modes temfile 384)
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85 (apply 'call-process
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86 (append (list (if (boundp 'post-mail-program)
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87 post-mail-program
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88 "/usr/uci/lib/mh/post")
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89 nil errbuf nil
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90 "-nofilter" "-msgid")
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91 (if mail-interactive '("-watch") '("-nowatch"))
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92 (list temfile)))
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93 (if mail-interactive
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94 (save-excursion
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95 (set-buffer errbuf)
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96 (goto-char (point-min))
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97 (while (re-search-forward "\n\n* *" nil t)
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98 (replace-match "; "))
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99 (if (not (zerop (buffer-size)))
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100 (error "Sending...failed to %s"
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101 (buffer-substring (point-min) (point-max)))))))
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102 (kill-buffer tembuf)
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103 (if (bufferp errbuf)
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104 (switch-to-buffer errbuf)))))
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105
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106 ;;; mailpost.el ends here
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