[nongnu] elpa/org-mime 85c98739f3 001/118: import original org-mime

[ELPA Syncer]

branch: elpa/org-mime
commit 85c98739f31cc3cce3e51c79280f59a38b4ccc1e
Author: Chen Bin <chenbin.sh@gmail.com>
Commit: Chen Bin <chenbin.sh@gmail.com>

    import original org-mime
---
 org-mime.el | 340 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 340 insertions(+)

diff --git a/org-mime.el b/org-mime.el
new file mode 100644
index 0000000000..ef2057c811
--- /dev/null
+++ b/org-mime.el
@@ -0,0 +1,340 @@
+;;; org-mime.el --- org html export for text/html MIME emails
+
+;; Copyright (C) 2010-2013 Eric Schulte
+
+;; Author: Eric Schulte
+;; Keywords: mime, mail, email, html
+;; Homepage: http://orgmode.org/worg/org-contrib/org-mime.php
+;; Version: 0.01
+
+;; This file is not part of GNU Emacs.
+
+;;; License:
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 3, or (at your option)
+;; any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; WYSWYG, html mime composition using org-mode
+;;
+;; For mail composed using the orgstruct-mode minor mode, this
+;; provides a function for converting all or part of your mail buffer
+;; to embedded html as exported by org-mode.  Call `org-mime-htmlize'
+;; in a message buffer to convert either the active region or the
+;; entire buffer to html.
+;;
+;; Similarly the `org-mime-org-buffer-htmlize' function can be called
+;; from within an org-mode buffer to convert the buffer to html, and
+;; package the results into an email handling with appropriate MIME
+;; encoding.
+;;
+;; you might want to bind this to a key with something like the
+;; following message-mode binding
+;;
+;;   (add-hook 'message-mode-hook
+;;             (lambda ()
+;;               (local-set-key "\C-c\M-o" 'org-mime-htmlize)))
+;;
+;; and the following org-mode binding
+;;
+;;   (add-hook 'org-mode-hook
+;;             (lambda ()
+;;               (local-set-key "\C-c\M-o" 'org-mime-org-buffer-htmlize)))
+
+;;; Code:
+(require 'cl)
+
+(declare-function org-export-string-as "ox"
+                 (string backend &optional body-only ext-plist))
+
+(defcustom org-mime-use-property-inheritance nil
+  "Non-nil means al MAIL_ properties apply also for sublevels."
+  :group 'org-mime
+  :type 'boolean)
+
+(defcustom org-mime-default-header
+  "#+OPTIONS: latex:t\n"
+  "Default header to control html export options, and ensure
+  first line isn't assumed to be a title line."
+  :group 'org-mime
+  :type 'string)
+
+(defcustom org-mime-library 'mml
+  "Library to use for marking up MIME elements."
+  :group 'org-mime
+  :type '(choice 'mml 'semi 'vm))
+
+(defcustom org-mime-preserve-breaks t
+  "Used as temporary value of `org-export-preserve-breaks' during
+  mime encoding."
+  :group 'org-mime
+  :type 'boolean)
+
+(defcustom org-mime-fixedwith-wrap
+  "<pre style=\"font-family: courier, monospace;\">\n%s</pre>\n"
+  "Format string used to wrap a fixedwidth HTML email."
+  :group 'org-mime
+  :type 'string)
+
+(defcustom org-mime-html-hook nil
+  "Hook to run over the html buffer before attachment to email.
+  This could be used for example to post-process html elements."
+  :group 'org-mime
+  :type 'hook)
+
+(mapc (lambda (fmt)
+       (eval `(defcustom
+                ,(intern (concat "org-mime-pre-" fmt "-hook"))
+                nil
+                (concat "Hook to run before " fmt " export.\nFunctions "
+                        "should take no arguments and will be run in a "
+                        "buffer holding\nthe text to be exported."))))
+      '("ascii" "org" "html"))
+
+(defcustom org-mime-send-subtree-hook nil
+  "Hook to run in the subtree in the Org-mode file before export.")
+
+(defcustom org-mime-send-buffer-hook nil
+  "Hook to run in the Org-mode file before export.")
+
+;; example hook, for setting a dark background in <pre 
style="background-color: #EEE;"> elements
+(defun org-mime-change-element-style (element style)
+  "Set new default htlm style for <ELEMENT> elements in exported html."
+  (while (re-search-forward (format "<%s" element) nil t)
+    (replace-match (format "<%s style=\"%s\"" element style))))
+
+(defun org-mime-change-class-style (class style)
+  "Set new default htlm style for objects with classs=CLASS in
+exported html."
+  (while (re-search-forward (format "class=\"%s\"" class) nil t)
+    (replace-match (format "class=\"%s\" style=\"%s\"" class style))))
+
+;; ;; example addition to `org-mime-html-hook' adding a dark background
+;; ;; color to <pre> elements
+;; (add-hook 'org-mime-html-hook
+;;           (lambda ()
+;;             (org-mime-change-element-style
+;;              "pre" (format "color: %s; background-color: %s;"
+;;                            "#E6E1DC" "#232323"))
+;;         (org-mime-change-class-style
+;;              "verse" "border-left: 2px solid gray; padding-left: 4px;")))
+
+(defun org-mime-file (ext path id)
+  "Markup a file for attachment."
+  (case org-mime-library
+    ('mml (format (concat "<#part type=\"%s\" filename=\"%s\" "
+                         "disposition=inline id=\"<%s>\">\n<#/part>\n")
+                 ext path id))
+    ('semi (concat
+            (format (concat "--[[%s\nContent-Disposition: "
+                           "inline;\nContent-ID: <%s>][base64]]\n")
+                   ext id)
+            (base64-encode-string
+             (with-temp-buffer
+               (set-buffer-multibyte nil)
+               (binary-insert-encoded-file path)
+               (buffer-string)))))
+    ('vm "?")))
+
+(defun org-mime-multipart (plain html &optional images)
+  "Markup a multipart/alternative with text/plain and text/html alternatives.
+If the html portion of the message includes images wrap the html
+and images in a multipart/related part."
+  (case org-mime-library
+    ('mml (concat "<#multipart type=alternative><#part type=text/plain>"
+                 plain
+                 (when images "<#multipart type=related>")
+                 "<#part type=text/html>"
+                 html
+                 images
+                 (when images "<#/multipart>\n")
+                 "<#/multipart>\n"))
+    ('semi (concat
+            "--" "<<alternative>>-{\n"
+            "--" "[[text/plain]]\n" plain
+           (when images (concat "--" "<<alternative>>-{\n"))
+            "--" "[[text/html]]\n"  html
+           images
+           (when images (concat "--" "}-<<alternative>>\n"))
+            "--" "}-<<alternative>>\n"))
+    ('vm "?")))
+
+(defun org-mime-replace-images (str current-file)
+  "Replace images in html files with cid links."
+  (let (html-images)
+    (cons
+     (replace-regexp-in-string ;; replace images in html
+      "src=\"\\([^\"]+\\)\""
+      (lambda (text)
+        (format
+         "src=\"cid:%s\""
+         (let* ((url (and (string-match "src=\"\\([^\"]+\\)\"" text)
+                          (match-string 1 text)))
+                (path (expand-file-name
+                       url (file-name-directory current-file)))
+                (ext (file-name-extension path))
+                (id (replace-regexp-in-string "[\/\\\\]" "_" path)))
+           (add-to-list 'html-images
+                        (org-mime-file (concat "image/" ext) path id))
+           id)))
+      str)
+     html-images)))
+
+(defun org-mime-htmlize (arg)
+  "Export a portion of an email body composed using `mml-mode' to
+html using `org-mode'.  If called with an active region only
+export that region, otherwise export the entire body."
+  (interactive "P")
+  (require 'ox-org)
+  (require 'ox-html)
+  (let* ((region-p (org-region-active-p))
+         (html-start (or (and region-p (region-beginning))
+                         (save-excursion
+                           (goto-char (point-min))
+                           (search-forward mail-header-separator)
+                           (+ (point) 1))))
+         (html-end (or (and region-p (region-end))
+                       ;; TODO: should catch signature...
+                       (point-max)))
+         (raw-body (concat org-mime-default-header
+                          (buffer-substring html-start html-end)))
+         (tmp-file (make-temp-name (expand-file-name
+                                   "mail" temporary-file-directory)))
+         (body (org-export-string-as raw-body 'org t))
+         ;; because we probably don't want to export a huge style file
+         (org-export-htmlize-output-type 'inline-css)
+         ;; makes the replies with ">"s look nicer
+         (org-export-preserve-breaks org-mime-preserve-breaks)
+        ;; dvipng for inline latex because MathJax doesn't work in mail
+        (org-html-with-latex 'dvipng)
+         ;; to hold attachments for inline html images
+         (html-and-images
+          (org-mime-replace-images
+          (org-export-string-as raw-body 'html t) tmp-file))
+         (html-images (unless arg (cdr html-and-images)))
+         (html (org-mime-apply-html-hook
+                (if arg
+                    (format org-mime-fixedwith-wrap body)
+                  (car html-and-images)))))
+    (delete-region html-start html-end)
+    (save-excursion
+      (goto-char html-start)
+      (insert (org-mime-multipart
+              body html (mapconcat 'identity html-images "\n"))))))
+
+(defun org-mime-apply-html-hook (html)
+  (if org-mime-html-hook
+      (with-temp-buffer
+        (insert html)
+        (goto-char (point-min))
+        (run-hooks 'org-mime-html-hook)
+        (buffer-string))
+    html))
+
+(defmacro org-mime-try (&rest body)
+  `(condition-case nil ,@body (error nil)))
+
+(defun org-mime-send-subtree (&optional fmt)
+  (save-restriction
+    (org-narrow-to-subtree)
+    (run-hooks 'org-mime-send-subtree-hook)
+    (flet ((mp (p) (org-entry-get nil p org-mime-use-property-inheritance)))
+      (let* ((file (buffer-file-name (current-buffer)))
+            (subject (or (mp "MAIL_SUBJECT") (nth 4 (org-heading-components))))
+            (to (mp "MAIL_TO"))
+            (cc (mp "MAIL_CC"))
+            (bcc (mp "MAIL_BCC"))
+            (body (buffer-substring
+                   (save-excursion (goto-char (point-min))
+                                   (forward-line 1)
+                                   (when (looking-at "[ \t]*:PROPERTIES:")
+                                     (re-search-forward ":END:" nil)
+                                     (forward-char))
+                                   (point))
+                   (point-max))))
+       (org-mime-compose body (or fmt 'org) file to subject
+                         `((cc . ,cc) (bcc . ,bcc)))))))
+
+(defun org-mime-send-buffer (&optional fmt)
+  (run-hooks 'org-mime-send-buffer-hook)
+  (let* ((region-p (org-region-active-p))
+        (subject (org-export-grab-title-from-buffer))
+         (file (buffer-file-name (current-buffer)))
+         (body-start (or (and region-p (region-beginning))
+                         (save-excursion (goto-char (point-min)))))
+         (body-end (or (and region-p (region-end)) (point-max)))
+        (temp-body-file (make-temp-file "org-mime-export"))
+        (body (buffer-substring body-start body-end)))
+    (org-mime-compose body (or fmt 'org) file nil subject)))
+
+(defun org-mime-compose (body fmt file &optional to subject headers)
+  (require 'message)
+  (message-mail to subject headers nil)
+  (message-goto-body)
+  (flet ((bhook (body fmt)
+               (let ((hook (intern (concat "org-mime-pre-"
+                                           (symbol-name fmt)
+                                           "-hook"))))
+                 (if (> (eval `(length ,hook)) 0)
+                     (with-temp-buffer
+                       (insert body)
+                       (goto-char (point-min))
+                       (eval `(run-hooks ',hook))
+                       (buffer-string))
+                   body))))
+    (let ((fmt (if (symbolp fmt) fmt (intern fmt))))
+      (cond
+       ((eq fmt 'org)
+       (require 'ox-org)
+       (insert (org-export-string-as
+                (org-babel-trim (bhook body 'org)) 'org t)))
+       ((eq fmt 'ascii)
+       (require 'ox-ascii)
+       (insert (org-export-string-as
+                (concat "#+Title:\n" (bhook body 'ascii)) 'ascii t)))
+       ((or (eq fmt 'html) (eq fmt 'html-ascii))
+       (require 'ox-ascii)
+       (require 'ox-org)
+       (let* ((org-link-file-path-type 'absolute)
+              ;; we probably don't want to export a huge style file
+              (org-export-htmlize-output-type 'inline-css)
+              (html-and-images
+               (org-mime-replace-images
+                (org-export-string-as (bhook body 'html) 'html t) file))
+              (images (cdr html-and-images))
+              (html (org-mime-apply-html-hook (car html-and-images))))
+         (insert (org-mime-multipart
+                  (org-export-string-as
+                   (org-babel-trim
+                    (bhook body (if (eq fmt 'html) 'org 'ascii)))
+                   (if (eq fmt 'html) 'org 'ascii) t)
+                  html)
+                 (mapconcat 'identity images "\n"))))))))
+
+(defun org-mime-org-buffer-htmlize ()
+  "Create an email buffer containing the current org-mode file
+  exported to html and encoded in both html and in org formats as
+  mime alternatives."
+  (interactive)
+  (org-mime-send-buffer 'html))
+
+(defun org-mime-subtree ()
+  "Create an email buffer containing the current org-mode subtree
+  exported to a org format or to the format specified by the
+  MAIL_FMT property of the subtree."
+  (interactive)
+  (org-mime-send-subtree
+   (or (org-entry-get nil "MAIL_FMT" org-mime-use-property-inheritance) 'org)))
+
+(provide 'org-mime)