X-Git-Url: https://cgit.sxemacs.org/?a=blobdiff_plain;f=lisp%2Fpop3.el;h=08cd7cd4ef101866df2e0210c20d291b0a6141b6;hb=c85ff27626350a909ee39474fecac012fec8cd26;hp=d2953dcffc922e3e0e73fd6c3f955e119a5beb33;hpb=ccdc046714e053c86b5a3afea3f2ab0fc9eaa549;p=gnus

diff --git a/lisp/pop3.el b/lisp/pop3.el
index d2953dcff..08cd7cd4e 100644
--- a/lisp/pop3.el
+++ b/lisp/pop3.el
@@ -1,7 +1,6 @@
 ;;; pop3.el --- Post Office Protocol (RFC 1460) interface
 
-;; Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
-;;   2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+;; Copyright (C) 1996-2011 Free Software Foundation, Inc.
 
 ;; Author: Richard L. Pieri <ratinox@peorth.gweep.net>
 ;; Maintainer: FSF
@@ -82,6 +81,15 @@ valid value is 'apop'."
   :version "22.1" ;; Oort Gnus
   :group 'pop3)
 
+(defcustom pop3-stream-length 100
+  "How many messages should be requested at one time.
+The lower the number, the more latency-sensitive the fetching
+will be.  If your pop3 server doesn't support streaming at all,
+set this to 1."
+  :type 'number
+  :version "24.1"
+  :group 'pop3)
+
 (defcustom pop3-leave-mail-on-server nil
   "*Non-nil if the mail is to be left on the POP server after fetching.
 
@@ -140,7 +148,7 @@ Use streaming commands."
       (let ((size (pop3-stat process)))
 	(setq message-count (car size)
 	      message-total-size (cadr size)))
-      (when (plusp message-count)
+      (when (> message-count 0)
 	(pop3-send-streaming-command
 	 process "RETR" message-count message-total-size)
 	(pop3-write-to-file file)
@@ -156,7 +164,7 @@ Use streaming commands."
     (while (>= count i)
       (process-send-string process (format "%s %d\r\n" command i))
       ;; Only do 100 messages at a time to avoid pipe stalls.
-      (when (zerop (% i 100))
+      (when (zerop (% i pop3-stream-length))
 	(pop3-wait-for-messages process i total-size))
       (incf i)))
   (pop3-wait-for-messages process count total-size))
@@ -318,21 +326,22 @@ Returns the process associated with the connection."
 	      ;; gnutls-cli, openssl don't accept service names
 	      (if (equal port "pop3")
 		  (setq port 110))
-	      (let ((process (starttls-open-stream "POP" (current-buffer)
-						   mailhost (or port 110))))
-		(pop3-send-command process "STLS")
-		(let ((response (pop3-read-response process t)))
-		  (if (and response (string-match "+OK" response))
-		      (starttls-negotiate process)
-		    (pop3-quit process)
-		    (error "POP server doesn't support starttls")))
-		process))
+	      ;; Delay STLS until server greeting is read (Bug#7438).
+	      (starttls-open-stream "POP" (current-buffer)
+				    mailhost (or port 110)))
 	     (t
 	      (open-network-stream "POP" (current-buffer) mailhost port))))
       (let ((response (pop3-read-response process t)))
 	(setq pop3-timestamp
 	      (substring response (or (string-match "<" response) 0)
 			 (+ 1 (or (string-match ">" response) -1)))))
+      (when (eq pop3-stream-type 'starttls)
+	(pop3-send-command process "STLS")
+	(let ((response (pop3-read-response process t)))
+	  (if (and response (string-match "+OK" response))
+	      (starttls-negotiate process)
+	    (pop3-quit process)
+	    (error "POP server doesn't support starttls"))))
       (pop3-set-process-query-on-exit-flag process nil)
       process)))