* lisp/mail/rmailedit.el (rmail-cease-edit): If rmail-old-mime-state
is set, meaning that we are editing the raw message, do not
encode it again. Delete old body after, not before, inserting
new, to avoid moving marker at beginning of next message.
Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
* lisp/mail/rmailedit.el (rmail-cease-edit): If no
content-type in edited headers, look for one in original
headers and add it to edited headers. (Bug #26918)
Use a marker to track start of new body, so that
content-transfer-encoding gets applied only to body. (Bug #27353).
Ensure blank line at end of message after encoding, not
before.
* mail/rmail.el (rmail-mime-decoded): New permanent local.
(rmail-show-message-1): Set rmail-mime-decoded when appropriate.
* mail/rmailedit.el (rmail-cease-edit): Respect rmail-mbox-format
and rmail-mime-decoded.
Fixes: debbugs:9841
* lisp/mail/rmailedit.el: Require rmailmm when compiling.
(rmail-old-mime-state): New declaration.
(rmail-edit-current-message): If editing a mime message,
edit the "raw" message from the mbox buffer.
(rmail-cease-edit): Handle mime messages.
(rmail-old-headers): New variable.
(rmail-edit-current-message): Set it, recording current headers.
(rmail-cease-edit): Compute new headers and diff against old ones.
Update the mbox buffer with the changes that were made.
(rmail-edit-headers-alist): New function.
(rmail-edit-diff-headers, rmail-edit-update-headers): New functions.
(rmail-old-pruned): Add doc string.
(rmail-edit-current-message): Use rmail-msg-is-pruned.
(rmail-cease-edit): Don't mangle the leading From line.
Don't mark as edited if there were no changes. (Bug#2256)
Correctly restore header state.
