lxdm: disallow empty new password

Do not clear text of label 'promt' when skip_password is set. When user
is required to update password, it only shows input box without label
for about 1 second.

And disallow empty new password when user is required to update it.

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

2 files changed, 54 insertions, 0 deletions

diff --git a/meta-oe/recipes-graphics/lxdm/lxdm/0009-greeter.c-disallow-empty-new-password.patch b/meta-oe/recipes-graphics/lxdm/lxdm/0009-greeter.c-disallow-empty-new-password.patch
new file mode 100644
index 000000000..3b12defb0
--- /dev/null
+++ b/meta-oe/recipes-graphics/lxdm/lxdm/0009-greeter.c-disallow-empty-new-password.patch
@@ -0,0 +1,53 @@
+From af1c347a31ae243d29c6087da8ffb423b23c74f2 Mon Sep 17 00:00:00 2001
+From: Kai Kang <kai.kang@windriver.com>
+Date: Mon, 1 Feb 2021 09:54:48 +0800
+Subject: [PATCH] greeter.c: disallow empty new password
+
+Do not clear text of label 'promt' when skip_password is set. When user
+is required to update password, it only shows input box without label
+for about 1 second.
+
+And disallow empty new password when user is required to update it.
+
+Upstream-Status: Submitted [https://sourceforge.net/p/lxdm/code/merge-requests/2/]
+
+Signed-off-by: Kai Kang <kai.kang@windriver.com>
+---
+ src/greeter.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/src/greeter.c b/src/greeter.c
+index 7e4a168..c0e6b64 100644
+--- a/src/greeter.c
++++ b/src/greeter.c
+@@ -220,7 +220,6 @@ static void on_entry_activate(GtkEntry* entry)
+                }
+                if(g_key_file_get_integer(config,"base","skip_password",NULL)!=0)
+                {
+-                       gtk_label_set_text( GTK_LABEL(prompt), "");
+                        try_login_user(user);
+                }
+                else
+@@ -235,6 +239,10 @@ static void on_entry_activate(GtkEntry* entry)
+                if (pass_expired) {
+                        if (!new_pass) {
+                                new_pass = g_strdup(gtk_entry_get_text(entry));
++                               if (strlen(new_pass) == 0) {
++                                       new_pass = NULL;
++                                       gtk_label_set_text((GtkLabel *)info, _("Empty password is not allowed."));
++                               }
+                                switch_to_input_passwd();
+                        } else {
+                                tmp = g_strdup(gtk_entry_get_text(entry));
+@@ -251,7 +259,7 @@ static void on_entry_activate(GtkEntry* entry)
+                                                gtk_label_set_text((GtkLabel *)info, _("Maximum number of failed update password attempts exceeded."));
+                                                switch_to_input_user();
+                                        }
+-                               } else if (!strcmp(pass, g_base64_encode((guchar*)new_pass, strlen(new_pass) + 1))) {
++                               } else if (pass && !strcmp(pass, g_base64_encode((guchar*)new_pass, strlen(new_pass) + 1))) {
+                                        // if new password is same as old one
+                                        g_free(new_pass);
+                                        new_pass = NULL;
+-- 
+2.25.1
+
diff --git a/meta-oe/recipes-graphics/lxdm/lxdm_0.5.3.bb b/meta-oe/recipes-graphics/lxdm/lxdm_0.5.3.bb
index dcfd9e169..216bbb624 100644
--- a/meta-oe/recipes-graphics/lxdm/lxdm_0.5.3.bb
+++ b/meta-oe/recipes-graphics/lxdm/lxdm_0.5.3.bb
@@ -17,6 +17,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/project/${BPN}/${BPN}%20${PV}/${BPN}-${PV}.tar.
            file://0006-themes-Industrial-add-info-label-in-ui.patch \
            file://0007-greeter.c-support-to-update-expired-password.patch \
            file://0008-greeter.c-show-information-on-gtk-label-info.patch \
+           file://0009-greeter.c-disallow-empty-new-password.patch \
            "
 SRC_URI[md5sum] = "061caae432634e6db38bbdc84bc6ffa0"
 SRC_URI[sha256sum] = "4891efee81c72a400cc6703e40aa76f3f3853833d048b72ec805da0f93567f2f"