From 161fc904f307f956ea295cccbdfe60cb71f539e9 Mon Sep 17 00:00:00 2001
From: m1ngsama <contact@m1ng.space>
Date: Mon, 24 Nov 2025 17:01:08 +0800
Subject: [PATCH] Fix passwordless login and display alignment issues

- Allow SSH_AUTH_METHOD_NONE for passwordless authentication
- Replace all \n with \r\n in TUI rendering for proper line breaks
- Fixes messages appearing misaligned on terminal
---
 src/ssh_server.c |  8 +++++---
 src/tui.c        | 15 +++++++++------
 2 files changed, 14 insertions(+), 9 deletions(-)

diff --git a/src/ssh_server.c b/src/ssh_server.c
index 4549f9f..382b44a 100644
--- a/src/ssh_server.c
+++ b/src/ssh_server.c
@@ -126,7 +126,7 @@ static int read_username(client_t *client) {
         }
     }
 
-    client_printf(client, "\n");
+    client_printf(client, "\r\n");
 
     if (username[0] == '\0') {
         strcpy(client->username, "anonymous");
@@ -458,8 +458,10 @@ static int handle_auth(ssh_session session) {
                 ssh_message_free(message);
                 return 0;
             } else if (ssh_message_subtype(message) == SSH_AUTH_METHOD_NONE) {
-                /* Deny and ask for password */
-                ssh_message_auth_set_methods(message, SSH_AUTH_METHOD_PASSWORD);
+                /* Accept passwordless authentication for open chatroom */
+                ssh_message_auth_reply_success(message, 0);
+                ssh_message_free(message);
+                return 0;
             }
         }
 
diff --git a/src/tui.c b/src/tui.c
index ea5431b..58cdc15 100644
--- a/src/tui.c
+++ b/src/tui.c
@@ -45,7 +45,7 @@ void tui_render_screen(client_t *client) {
     for (int i = 0; i < padding; i++) {
         buffer[pos++] = ' ';
     }
-    pos += snprintf(buffer + pos, sizeof(buffer) - pos, ANSI_RESET "\n");
+    pos += snprintf(buffer + pos, sizeof(buffer) - pos, ANSI_RESET "\r\n");
 
     /* Messages area */
     int msg_height = client->height - 3;
@@ -74,13 +74,14 @@ void tui_render_screen(client_t *client) {
     for (int i = start; i < end; i++) {
         char msg_line[1024];
         message_format(&g_room->messages[i], msg_line, sizeof(msg_line), client->width);
-        pos += snprintf(buffer + pos, sizeof(buffer) - pos, "%s\n", msg_line);
+        pos += snprintf(buffer + pos, sizeof(buffer) - pos, "%s\r\n", msg_line);
     }
 
     pthread_rwlock_unlock(&g_room->lock);
 
     /* Fill empty lines */
     for (int i = end - start; i < msg_height; i++) {
+        buffer[pos++] = '\r';
         buffer[pos++] = '\n';
     }
 
@@ -91,6 +92,7 @@ void tui_render_screen(client_t *client) {
         memcpy(buffer + pos, line_char, len);
         pos += len;
     }
+    buffer[pos++] = '\r';
     buffer[pos++] = '\n';
 
     /* Status/Input line */
@@ -165,7 +167,7 @@ void tui_render_command_output(client_t *client) {
     for (int i = 0; i < padding; i++) {
         buffer[pos++] = ' ';
     }
-    pos += snprintf(buffer + pos, sizeof(buffer) - pos, ANSI_RESET "\n");
+    pos += snprintf(buffer + pos, sizeof(buffer) - pos, ANSI_RESET "\r\n");
 
     /* Command output */
     char *line = strtok(client->command_output, "\n");
@@ -181,7 +183,7 @@ void tui_render_command_output(client_t *client) {
             utf8_truncate(truncated, client->width);
         }
 
-        pos += snprintf(buffer + pos, sizeof(buffer) - pos, "%s\n", truncated);
+        pos += snprintf(buffer + pos, sizeof(buffer) - pos, "%s\r\n", truncated);
         line = strtok(NULL, "\n");
         line_count++;
     }
@@ -298,7 +300,7 @@ void tui_render_help(client_t *client) {
     for (int i = 0; i < padding; i++) {
         buffer[pos++] = ' ';
     }
-    pos += snprintf(buffer + pos, sizeof(buffer) - pos, ANSI_RESET "\n");
+    pos += snprintf(buffer + pos, sizeof(buffer) - pos, ANSI_RESET "\r\n");
 
     /* Help content */
     const char *help_text = tui_get_help_text(client->help_lang);
@@ -321,11 +323,12 @@ void tui_render_help(client_t *client) {
     if (end > line_count) end = line_count;
 
     for (int i = start; i < end && (i - start) < content_height - 1; i++) {
-        pos += snprintf(buffer + pos, sizeof(buffer) - pos, "%s\n", lines[i]);
+        pos += snprintf(buffer + pos, sizeof(buffer) - pos, "%s\r\n", lines[i]);
     }
 
     /* Fill remaining lines */
     for (int i = end - start; i < content_height - 1; i++) {
+        buffer[pos++] = '\r';
         buffer[pos++] = '\n';
     }