Fix wssshd user permission issue for home directory

- Add permission verification in postinst scripts for both wssshd and wssshc
- Test if users can write to their home directories
- Fix permissions if write access is denied (chmod 775)
- Ensure users are in correct groups
- Prevent 'Permission denied' errors when creating .config directories

wsssh-server/debian/postinst

@@ -30,8 +30,20 @@ case "$1" in
         # Create wssshd home directory
         if [ ! -d /var/lib/wssshd ]; then
             mkdir -p /var/lib/wssshd
-            chown wssshd:wssshd /var/lib/wssshd
-            chmod 755 /var/lib/wssshd
+        fi
+
+        # Ensure wssshd user owns its home directory and can write to it
+        chown wssshd:wssshd /var/lib/wssshd
+        chmod 755 /var/lib/wssshd
+
+        # Ensure the user can actually write to its home directory
+        # Try to create a test file to verify write permissions
+        if ! su -s /bin/sh wssshd -c "touch /var/lib/wssshd/.test_write 2>/dev/null && rm /var/lib/wssshd/.test_write 2>/dev/null" 2>/dev/null; then
+            echo "Warning: wssshd user cannot write to /var/lib/wssshd, fixing permissions"
+            # Try to fix permissions by making directory writable
+            chmod 775 /var/lib/wssshd
+            # Also ensure the user is in the right group
+            usermod -g wssshd wssshd 2>/dev/null || true
         fi
 
         # Create log directory

wssshtools/debian/postinst

@@ -30,8 +30,20 @@ case "$1" in
         # Create home directory for wssshc user
         if [ ! -d /var/lib/wssshc ]; then
             mkdir -p /var/lib/wssshc
-            chown wssshc:wssshc /var/lib/wssshc
-            chmod 755 /var/lib/wssshc
+        fi
+
+        # Ensure wssshc user owns its home directory and can write to it
+        chown wssshc:wssshc /var/lib/wssshc
+        chmod 755 /var/lib/wssshc
+
+        # Ensure the user can actually write to its home directory
+        # Try to create a test file to verify write permissions
+        if ! su -s /bin/sh wssshc -c "touch /var/lib/wssshc/.test_write 2>/dev/null && rm /var/lib/wssshc/.test_write 2>/dev/null" 2>/dev/null; then
+            echo "Warning: wssshc user cannot write to /var/lib/wssshc, fixing permissions"
+            # Try to fix permissions by making directory writable
+            chmod 775 /var/lib/wssshc
+            # Also ensure the user is in the right group
+            usermod -g wssshc wssshc 2>/dev/null || true
         fi
 
         # Create log directory