(require 'tls)
(require 'parse-time)
(require 'nnmail)
+(require 'proto-stream)
(eval-when-compile
(require 'gnus-sum))
If nnimap-stream is `ssl', this will default to `imaps'. If not,
it will default to `imap'.")
-(defvoo nnimap-stream 'ssl
+(defvoo nnimap-stream 'undecided
"How nnimap will talk to the IMAP server.
-Values are `ssl', `network', `starttls' or `shell'.")
+Values are `ssl', `network', `starttls' or `shell'.
+The default is to try `ssl' first, and then `network'.")
(defvoo nnimap-shell-program (if (boundp 'imap-shell-program)
(if (listp imap-shell-program)
(push (current-buffer) nnimap-process-buffers)
(current-buffer)))
-(defun nnimap-open-shell-stream (name buffer host port)
- (let ((process-connection-type nil))
- (start-process name buffer shell-file-name
- shell-command-switch
- (format-spec
- nnimap-shell-program
- (format-spec-make
- ?s host
- ?p port)))))
-
(defun nnimap-credentials (address ports &optional inhibit-create)
(let (port credentials)
;; Request the credentials from all ports, but only query on the
(* 5 60)))
(nnimap-send-command "NOOP")))))))
-(declare-function gnutls-negotiate "gnutls"
- (proc type &optional priority-string trustfiles keyfiles))
-
(defun nnimap-open-connection (buffer)
+ ;; Be backwards-compatible -- the earlier value of nnimap-stream was
+ ;; `ssl' when nnimap-server-port was nil. Sort of.
+ (when (and nnimap-server-port
+ (eq nnimap-stream 'undecided))
+ (setq nnimap-stream 'ssl))
+ (let ((stream
+ (if (eq nnimap-stream 'undecided)
+ (loop for type in '(ssl network)
+ for stream = (let ((nnimap-stream type))
+ (nnimap-open-connection-1 buffer))
+ while (eq stream 'no-connect)
+ finally (return stream))
+ (nnimap-open-connection-1 buffer))))
+ (if (eq stream 'no-connect)
+ nil
+ stream)))
+
+(defun nnimap-open-connection-1 (buffer)
(unless nnimap-keepalive-timer
(setq nnimap-keepalive-timer (run-at-time (* 60 15) (* 60 15)
'nnimap-keepalive)))
- (block nil
- (with-current-buffer (nnimap-make-process-buffer buffer)
- (let* ((coding-system-for-read 'binary)
- (coding-system-for-write 'binary)
- (port nil)
- (ports
- (cond
- ((or (eq nnimap-stream 'network)
- (and (eq nnimap-stream 'starttls)
- (fboundp 'open-gnutls-stream)))
- (nnheader-message 7 "Opening connection to %s..."
- nnimap-address)
- (open-network-stream
- "*nnimap*" (current-buffer) nnimap-address
- (setq port
- (or nnimap-server-port
- (if (netrc-find-service-number "imap")
- "imap"
- "143"))))
- '("143" "imap"))
- ((eq nnimap-stream 'shell)
- (nnheader-message 7 "Opening connection to %s via shell..."
- nnimap-address)
- (nnimap-open-shell-stream
- "*nnimap*" (current-buffer) nnimap-address
- (setq port (or nnimap-server-port "imap")))
- '("imap"))
- ((eq nnimap-stream 'starttls)
- (nnheader-message 7 "Opening connection to %s via starttls..."
- nnimap-address)
- (let ((tls-program
- '("openssl s_client -connect %h:%p -no_ssl2 -ign_eof -starttls imap")))
- (open-tls-stream
- "*nnimap*" (current-buffer) nnimap-address
- (setq port (or nnimap-server-port "imap"))))
- '("imap"))
- ((memq nnimap-stream '(ssl tls))
- (nnheader-message 7 "Opening connection to %s via tls..."
- nnimap-address)
- (funcall (if (fboundp 'open-gnutls-stream)
- 'open-gnutls-stream
- 'open-tls-stream)
- "*nnimap*" (current-buffer) nnimap-address
- (setq port
- (or nnimap-server-port
- (if (netrc-find-service-number "imaps")
- "imaps"
- "993"))))
- '("143" "993" "imap" "imaps"))
- (t
- (error "Unknown stream type: %s" nnimap-stream))))
- connection-result login-result credentials)
- (setf (nnimap-process nnimap-object)
- (get-buffer-process (current-buffer)))
- (if (not (and (nnimap-process nnimap-object)
- (memq (process-status (nnimap-process nnimap-object))
- '(open run))))
- (nnheader-report 'nnimap "Unable to contact %s:%s via %s"
- nnimap-address port nnimap-stream)
- (gnus-set-process-query-on-exit-flag
- (nnimap-process nnimap-object) nil)
- (if (not (setq connection-result (nnimap-wait-for-connection)))
- (nnheader-report 'nnimap
- "%s" (buffer-substring
- (point) (line-end-position)))
- ;; Store the greeting (for debugging purposes).
- (setf (nnimap-greeting nnimap-object)
- (buffer-substring (line-beginning-position)
- (line-end-position)))
- (nnimap-get-capabilities)
- (when nnimap-server-port
- (push (format "%s" nnimap-server-port) ports))
- ;; If this is a STARTTLS-capable server, then sever the
- ;; connection and start a STARTTLS connection instead.
+ (with-current-buffer (nnimap-make-process-buffer buffer)
+ (let* ((coding-system-for-read 'binary)
+ (coding-system-for-write 'binary)
+ (port nil)
+ (ports
(cond
- ((and (or (and (eq nnimap-stream 'network)
- (nnimap-capability "STARTTLS"))
- (eq nnimap-stream 'starttls))
- (fboundp 'open-gnutls-stream))
- (nnimap-command "STARTTLS")
- (gnutls-negotiate (nnimap-process nnimap-object) nil)
- ;; Get the capabilities again -- they may have changed
- ;; after doing STARTTLS.
- (nnimap-get-capabilities))
- ((and (eq nnimap-stream 'network)
- (nnimap-capability "STARTTLS"))
- (let ((nnimap-stream 'starttls))
- (let ((tls-process
- (nnimap-open-connection buffer)))
- ;; If the STARTTLS connection was successful, we
- ;; kill our first non-encrypted connection. If it
- ;; wasn't successful, we just use our unencrypted
- ;; connection.
- (when (memq (process-status tls-process) '(open run))
- (delete-process (nnimap-process nnimap-object))
- (kill-buffer (current-buffer))
- (return tls-process))))))
+ ((or (eq nnimap-stream 'network)
+ (eq nnimap-stream 'starttls))
+ (nnheader-message 7 "Opening connection to %s..."
+ nnimap-address)
+ '("143" "imap"))
+ ((eq nnimap-stream 'shell)
+ (nnheader-message 7 "Opening connection to %s via shell..."
+ nnimap-address)
+ '("imap"))
+ ((memq nnimap-stream '(ssl tls))
+ (nnheader-message 7 "Opening connection to %s via tls..."
+ nnimap-address)
+ '("143" "993" "imap" "imaps"))
+ (t
+ (error "Unknown stream type: %s" nnimap-stream))))
+ (proto-stream-always-use-starttls t)
+ connection-result login-result credentials)
+ (when nnimap-server-port
+ (setq ports (append ports (list nnimap-server-port))))
+ (destructuring-bind (stream greeting capabilities)
+ (open-protocol-stream
+ "*nnimap*" (current-buffer) nnimap-address (car (last ports))
+ :type nnimap-stream
+ :shell-command nnimap-shell-program
+ :capability-command "1 CAPABILITY\r\n"
+ :success " OK "
+ :starttls-function
+ (lambda (capabilities)
+ (if (not (string-match "STARTTLS" capabilities))
+ ;; Not a STARTTLS-capable server.
+ nil
+ "1 STARTTLS\r\n")))
+ (setf (nnimap-process nnimap-object) stream)
+ (if (not stream)
+ (progn
+ (nnheader-report 'nnimap "Unable to contact %s:%s via %s"
+ nnimap-address port nnimap-stream)
+ 'no-connect)
+ (gnus-set-process-query-on-exit-flag stream nil)
+ (if (not (string-match "[*.] OK" greeting))
+ (nnheader-report 'nnimap "%s" greeting)
+ ;; Store the greeting (for debugging purposes).
+ (setf (nnimap-greeting nnimap-object) greeting)
+ (setf (nnimap-capabilities nnimap-object)
+ (mapcar #'upcase
+ (split-string capabilities)))
(unless (equal connection-result "PREAUTH")
(if (not (setq credentials
(if (eq nnimap-authenticator 'anonymous)
(nnimap-command "ENABLE QRESYNC"))
(nnimap-process nnimap-object))))))))
-(defun nnimap-get-capabilities ()
- (setf (nnimap-capabilities nnimap-object)
- (mapcar
- #'upcase
- (nnimap-find-parameter
- "CAPABILITY" (cdr (nnimap-command "CAPABILITY"))))))
-
(defun nnimap-quote-specials (string)
(with-temp-buffer
(insert string)
(setq sequence (nnimap-send-command
"UID STORE %s %sFLAGS.SILENT (%s)"
(nnimap-article-ranges range)
- (if (eq action 'del)
- "-"
- "+")
+ (cond
+ ((eq action 'del) "-")
+ ((eq action 'add) "+")
+ ((eq action 'set) ""))
(mapconcat #'identity flags " ")))))))
;; Wait for the last command to complete to avoid later
;; syncronisation problems with the stream.
group message-id)))))))))
(defun nnimap-find-uid-response (name list)
- (let ((result (nth 2 (nnimap-find-response-element name list))))
+ (let ((result (car (last (nnimap-find-response-element name list)))))
(and result
(string-to-number result))))
(separator (read (current-buffer)))
(group (read (current-buffer))))
(unless (member '%NoSelect flags)
- (push group groups))))
+ (push (if (stringp group)
+ group
+ (format "%s" group))
+ groups))))
(nreverse groups)))
(deffoo nnimap-request-list (&optional server)
uidvalidity
modseq)
(push
- (list (nnimap-send-command "EXAMINE %S (QRESYNC (%s %s))"
+ (list (nnimap-send-command "EXAMINE %S (QRESYNC (%s %s))"
(utf7-encode group t)
uidvalidity modseq)
'qresync
projects / gnus / blobdiff