From: Tim Vaughan <plugd@thelambdalab.xyz>
Date: Sun, 20 Jun 2021 21:57:10 +0000 (+0200)
Subject: Implemented CTCP version and ping.
X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=commitdiff_plain;h=b37326a2c75f1296109c1a1574aac74eaaf419a4;p=lurk.git

Implemented CTCP version and ping.
---

diff --git a/lirc.el b/lirc.el
index 5301072..e6f47fb 100644
--- a/lirc.el
+++ b/lirc.el
@@ -54,6 +54,14 @@
 ;;; Faces
 ;;
 
+(defface lirc-text
+  '((t :inherit font-lock-preprocessor-face))
+  "Face used for Lirc text.")
+
+(defface lirc-your-nick
+  '((t :inherit font-lock-constant-face))
+  "Face used for highlighting your nick.")
+
 (defface lirc-prompt
   '((t :inherit org-level-2))
   "Face used for the prompt.")
@@ -65,6 +73,8 @@
 ;;; Global variables
 ;;
 
+(defvar lirc-version "Lirc v0.1")
+
 
 ;;; Network process
 ;;
@@ -190,19 +200,24 @@ portion of the source component of the message, as LIRC doesn't use this.")
 
 (defun lirc-del-channel-users (channel-name &rest users)
   (let ((current-users (lirc-get-channel-users channel-name)))
-    (lirc-channel-set-users channel-name
+    (lirc-set-channel-users channel-name
                             (cl-set-difference current-users users :test #'equal))))
 
 
 ;;; Buffer
 ;;
 
-(defun lirc-display-string (string)
+(defun lirc-display-string (&rest strings)
   (with-current-buffer (get-buffer-create "*lirc*")
     (save-excursion
       (goto-char lirc-prompt-marker)
       (let ((inhibit-read-only t))
-        (insert-before-markers (propertize (concat string "\n") 'read-only t))))))
+        (insert-before-markers
+         (propertize (concat (format-time-string "%H:%M") " ")
+                     'face 'lirc-text
+                     'read-only t)
+         (propertize (concat (apply #'concat strings) "\n")
+                     'read-only t))))))
 
 (defun lirc-connect ()
   (lirc-send-msg (lirc-msg nil nil "USER" lirc-user-name 0 "*" lirc-full-name))
@@ -250,18 +265,40 @@ portion of the source component of the message, as LIRC doesn't use this.")
     (goto-char (point-max))
     (recenter -1)))
 
+
+;;; Output formatting
+;;
+
+(defun lirc-display-action (channel nick action)
+  (lirc-display-string (concat " * "
+                               (propertize (concat nick " " action)
+                                           'face 'lirc-text))))
+
+(defun lirc-display-message (channel nick message)
+  (lirc-display-string
+   (concat
+    (propertize (concat channel " ")
+                'face 'lirc-text)
+    (propertize (concat "<" nick "> ")
+                'face
+                (if (equal nick lirc-nick)
+                    'lirc-your-nick
+                  'lirc-text))
+    (propertize message 'face 'lirc-text))))
+
+(defun lirc-display-notice (&rest notices)
+  (lirc-display-string "*** " (apply #'concat notices)))
+
 ;;; Message evaluation
 ;;
 
 (defun lirc-eval-msg-string (string)
-  (lirc-display-string string)
+  ;; (lirc-display-string string)
   (let* ((msg (lirc-string->msg string)))
     (pcase (lirc-msg-cmd msg)
       ("PING"
        (lirc-send-msg
         (lirc-msg nil nil "PONG" (lirc-msg-params msg))))
-      ;; ((rx (= 3 digit))
-      ;;  (lirc-display-string (string-join (cdr (lirc-msg-params msg)) " ")))
 
       ("353" ; NAMEREPLY
        (let* ((params (lirc-msg-params msg))
@@ -269,6 +306,9 @@ portion of the source component of the message, as LIRC doesn't use this.")
               (names (split-string (elt params 3))))
          (apply #'lirc-add-channel-users (cons channel names))))
 
+      ((rx (= 3 (any digit)))
+       (lirc-display-notice (mapconcat 'identity (cdr (lirc-msg-params msg)) " ")))
+
       ((and "JOIN"
             (guard (equal lirc-nick (lirc-msg-src msg))))
        (let ((channel (car (lirc-msg-params msg))))
@@ -279,28 +319,68 @@ portion of the source component of the message, as LIRC doesn't use this.")
       ("JOIN"
        (let ((channel (car (lirc-msg-params msg)))
              (nick (lirc-msg-src msg)))
-        (lirc-add-channel-users channel nick)))
+         (lirc-add-channel-users channel nick)))
 
       ((and "PART"
             (guard (equal lirc-nick (lirc-msg-src msg))))
        (setq lirc-current-channel nil)
-       (lirc-del-channel (car (lirc-msg-params msg))))
+       (lirc-del-channel (car (lirc-msg-params msg)))
+       (lirc-render-prompt))
 
       ("PART"
        (let ((channel (car (lirc-msg-params msg)))
              (nick (lirc-msg-src msg)))
-         (lirc-del-channel-users channel nick)))
+         (lirc-del-channel-users channel nick)
+         (lirc-display-notice nick " left channel " channel)))
+
+      ("QUIT"
+       (let ((nick (lirc-msg-src msg))
+             (reason (mapconcat 'identity (lirc-msg-params msg) " ")))
+         (lirc-del-users nick)
+         (lirc-display-notice nick " quit: " reason)))
 
       ((and "NICK"
             (guard (equal lirc-nick (lirc-msg-src msg))))
        (setq lirc-nick (car (lirc-msg-params msg)))
-       (lirc-display-string (concat "*** Set nick to " lirc-nick)))
+       (lirc-display-notice "Set nick to " lirc-nick))
+
+      ("NOTICE"
+       (let ((nick (lirc-msg-src msg))
+             (channel (car (lirc-msg-params msg)))
+             (text (cadr (lirc-msg-params msg))))
+         (pcase text
+           ((rx (: "\01VERSION "
+                   (let version (* (not "\01")))
+                   "\01"))
+            (lirc-display-notice "CTCP version reply from " nick ": " version)))))
 
       ("PRIVMSG"
        (let ((nick (lirc-msg-src msg))
              (channel (car (lirc-msg-params msg)))
              (text (cadr (lirc-msg-params msg))))
-         (lirc-display-string (concat channel " <" nick "> " text))))
+         (pcase text
+           ((rx (: "\01ACTION "
+                   (let action (* (not "\01")))
+                   "\01"))
+            (lirc-display-action nick action))
+
+           ("\01VERSION\01"
+            (let ((version-string (concat lirc-version " - running on GNU Emacs " emacs-version)))
+              (lirc-send-msg (lirc-msg nil nil "NOTICE"
+                                       (list nick (concat "\01VERSION "
+                                                          version-string
+                                                          "\01")))))
+            (lirc-display-notice "CTCP version request received from " nick))
+
+           ((rx (let ping (: "\01PING " (* (not "\01")) "\01")))
+            (lirc-send-msg (lirc-msg nil nil "NOTICE" (list nick ping)))
+            (lirc-display-notice "CTCP ping received from " nick))
+
+           ("\01USERINFO\01"
+            (lirc-display-notice "CTCP userinfo request from " nick " (no response sent)"))
+
+           (_
+            (lirc-display-message channel nick text)))))
       (_
        (lirc-display-string (lirc-msg->string msg))))))
 
@@ -311,16 +391,33 @@ portion of the source component of the message, as LIRC doesn't use this.")
 (defun lirc-enter-string (string)
   (if (string-prefix-p "/" string)
       (pcase (substring string 1)
-        ((rx (: (let cmd-str (+ (not space))))
-            (opt
-             (: (+ " ")
-                (let params-str (+ anything)))))
-         (lirc-send-msg (lirc-msg nil nil
-                                  cmd-str
+        ((rx (: "TOPIC" " " (let new-topic (* not-newline))))
+         (lirc-send-msg (lirc-msg nil nil "TOPIC" lirc-current-channel new-topic)))
+
+        ((rx (: "me" " " (let action (* not-newline))))
+         (lirc-send-msg (lirc-msg nil nil "PRIVMSG"
+                                  (list lirc-current-channel
+                                        (concat "\01ACTION " action "\01"))))
+         (lirc-display-action lirc-nick action))
+
+        ((rx (: "VERSION" " " (let nick (* (not whitespace)))))
+         (lirc-send-msg (lirc-msg nil nil "PRIVMSG"
+                                  (list nick "\01VERSION\01")))
+         (lirc-display-notice "CTCP version request sent to " nick))
+
+        ((rx "PART")
+         (lirc-send-msg (lirc-msg nil nil "PART" lirc-current-channel)))
+
+        ((rx (: (let cmd-str (+ (not whitespace)))
+                (opt (: " " (let params-str (* not-newline))))))
+         (lirc-send-msg (lirc-msg nil nil (upcase cmd-str)
                                   (if params-str
                                       (split-string params-str)
                                     nil)))))
-    (lirc-send-msg (lirc-msg nil nil "PRIVMSG" lirc-current-channel string))))
+
+    (unless (string-empty-p string)
+      (lirc-send-msg (lirc-msg nil nil "PRIVMSG" lirc-current-channel string))
+      (lirc-display-message lirc-current-channel lirc-nick string))))
 
 (defun lirc-enter ()
   "Enter current contents of line after prompt."