[PATCH 2/2] emacs: new mua mailto: URI handler

diff --git a/63/c0cc3947212ba9682c3b6e24de13e27c781a65 b/63/c0cc3947212ba9682c3b6e24de13e27c781a65
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@@ -0,0 +1,149 @@
+Return-Path: <jrollins@finestructure.net>\r
+X-Original-To: notmuch@notmuchmail.org\r
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+From: Jameson Graef Rollins <jrollins@finestructure.net>\r
+To: Notmuch Mail <notmuch@notmuchmail.org>\r
+Subject: [PATCH 2/2] emacs: new mua mailto: URI handler\r
+Date: Sun, 29 Jan 2012 11:33:44 -0800\r
+Message-Id: <1327865624-7673-2-git-send-email-jrollins@finestructure.net>\r
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+\r
+The new function 'notmuch-mua-mailto' provides an interactive handler\r
+for rfc6068 "mailto:" URIs.  It attempts to implement the rfc6068\r
+specification: http://tools.ietf.org/html/rfc6068\r
+\r
+More decoding of the mailto string needs to be done, as is evident by\r
+the fact that the mailto test remains broken.\r
+---\r
+Unfortunately I'm not sure how best to do the URI decoding, so I've\r
+left a FIXME in the code, and the test as known_broken.  I'm hoping an\r
+elisp/encodings expert out there will pick this up.\r
+\r
+ emacs/notmuch-mua.el |   62 ++++++++++++++++++++++++++++++++++++++++++++++++++\r
+ 1 files changed, 62 insertions(+), 0 deletions(-)\r
+\r
+diff --git a/emacs/notmuch-mua.el b/emacs/notmuch-mua.el\r
+index 023645e..750e8d6 100644\r
+--- a/emacs/notmuch-mua.el\r
++++ b/emacs/notmuch-mua.el\r
+@@ -24,6 +24,10 @@\r
+ (require 'notmuch-lib)\r
+ (require 'notmuch-address)\r
+ \r
++(require 'rfc2368)\r
++(require 'rfc2047)\r
++(require 'mailheader)\r
++\r
+ ;;\r
+ \r
+ (defcustom notmuch-mua-send-hook '(notmuch-mua-message-send-hook)\r
+@@ -131,6 +135,64 @@ list."\r
+ \r
+   (message-goto-to))\r
+ \r
++(defun notmuch-mua-mailto (mailto)\r
++  "Invoke the notmuch mail composition window for a `mailto:' URI."\r
++  ;; this should implement implement rfc6068: http://tools.ietf.org/html/rfc6068\r
++  ;; which obsoleted: http://tools.ietf.org/html/rfc2368\r
++  ;; this function is based on previous work: http://www.emacswiki.org/emacs/MailtoHandler\r
++  (interactive)\r
++  (when (and (stringp mailto)\r
++           (string-match "\\`mailto:" mailto))\r
++    (let* (\r
++         ;; FIXME: need to decode all html encodings in uri.\r
++         (mailto (replace-regexp-in-string "&amp;" "&" mailto))\r
++         (hdr-alist (rfc2368-parse-mailto-url mailto))\r
++         to subject other-headers body\r
++         (allowed-xtra-hdrs '(cc bcc in-reply-to)))\r
++\r
++      (with-temp-buffer\r
++      ;; extract body if it's defined\r
++      (when (assoc "Body" hdr-alist)\r
++        (dolist (hdr hdr-alist)\r
++          (when (equal "Body" (car hdr))\r
++            (insert (format "%s\n" (cdr hdr)))))\r
++        (rfc2047-decode-region (point-min) (point-max))\r
++        (setq body (buffer-substring-no-properties\r
++                    (point-min) (point-max)))\r
++        (erase-buffer))\r
++\r
++      ;; extract headers\r
++      (dolist (hdr hdr-alist)\r
++        (unless (equal "Body" (car hdr))\r
++          (insert (format "%s: %s\n" (car hdr) (cdr hdr)))))\r
++      (rfc2047-decode-region (point-min) (point-max))\r
++      (goto-char (point-min))\r
++      (setq hdr-alist (mail-header-extract-no-properties)))\r
++\r
++      (setq to (cdr (assoc 'to hdr-alist)))\r
++      (setq subject (cdr (assoc 'subject hdr-alist)))\r
++\r
++      ;; extract allowed other headers, taking only first defined\r
++      ;; value\r
++      (dolist (hdr hdr-alist)\r
++      (if (and (member (car hdr) allowed-xtra-hdrs)\r
++               (not (assoc (car hdr) other-headers)))\r
++          (add-to-list 'other-headers hdr)))\r
++\r
++      (notmuch-mua-mail to subject other-headers)\r
++\r
++      ;; insert the message body - but put it in front of the signature\r
++      ;; if one is present\r
++      (goto-char (point-max))\r
++      (if (re-search-backward message-signature-separator nil t)\r
++        (forward-line -1)\r
++      (goto-char (point-max)))\r
++      (insert body)\r
++      (push-mark))\r
++    (set-buffer-modified-p nil)\r
++\r
++    (message-goto-body)))\r
++\r
+ (defun notmuch-mua-mail (&optional to subject other-headers &rest other-args)\r
+   "Invoke the notmuch mail composition window.\r
+ \r
+-- \r
+1.7.8.3\r
+\r