[calls] Introduce CallsSecretStore to store credentials

[Evangelos Ribeiro Tzaras <devrtz src gnome org>]

commit c5e4c80a47d332a28adc733fb3a6b60a0414b021
Author: Evangelos Ribeiro Tzaras <evangelos tzaras puri sm>
Date:   Thu Jul 8 17:34:40 2021 +0200

    Introduce CallsSecretStore to store credentials

 src/calls-secret-store.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 src/calls-secret-store.h | 36 ++++++++++++++++++++++++++++++++++++
 src/meson.build          |  2 ++
 3 files changed, 83 insertions(+)
---
diff --git a/src/calls-secret-store.c b/src/calls-secret-store.c
new file mode 100644
index 00000000..802e550d
--- /dev/null
+++ b/src/calls-secret-store.c
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2021 Purism SPC
+ *
+ * This file is part of Calls.
+ *
+ * Calls is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Calls is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Calls.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Evangelos Ribeiro Tzaras <evangelos tzaras puri sm>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ */
+
+#define G_LOG_DOMAIN "CallsSecretStore"
+
+#include "calls-secret-store.h"
+
+#include <libsecret/secret.h>
+
+const SecretSchema *
+calls_secret_get_schema (void)
+{
+  static const SecretSchema schema = {
+    "sm.puri.Calls", SECRET_SCHEMA_NONE,
+    {
+      { CALLS_USERNAME_ATTRIBUTE, SECRET_SCHEMA_ATTRIBUTE_STRING },
+      { CALLS_SERVER_ATTRIBUTE, SECRET_SCHEMA_ATTRIBUTE_STRING },
+      { CALLS_PROTOCOL_ATTRIBUTE, SECRET_SCHEMA_ATTRIBUTE_STRING },
+      { NULL, 0 },
+    }
+  };
+
+  return &schema;
+}
diff --git a/src/calls-secret-store.h b/src/calls-secret-store.h
new file mode 100644
index 00000000..e709c0e0
--- /dev/null
+++ b/src/calls-secret-store.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) 2021 Purism SPC
+ *
+ * This file is part of Calls.
+ *
+ * Calls is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Calls is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Calls.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Author: Evangelos Ribeiro Tzaras <evangelos tzaras puri sm>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ */
+
+#pragma once
+
+#include <libsecret/secret.h>
+
+#define CALLS_USERNAME_ATTRIBUTE "username"
+#define CALLS_SERVER_ATTRIBUTE "server"
+#define CALLS_PROTOCOL_ATTRIBUTE "protocol"
+
+const SecretSchema *calls_secret_get_schema (void) G_GNUC_CONST;
+
+#define CALLS_SECRET_SCHEMA calls_secret_get_schema ()
+
diff --git a/src/meson.build b/src/meson.build
index 290b6e2f..d3ea0887 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -38,6 +38,7 @@ calls_deps = [ dependency('gobject-2.0', version: '>= 2.58'),
                dependency('libebook-contacts-1.2'),
                dependency('folks'),
                dependency('libcallaudio-0.1'),
+               dependency('libsecret-1'),
              ]
 
 calls_vala_deps = [
@@ -111,6 +112,7 @@ calls_sources = files(['calls-message-source.c', 'calls-message-source.h',
                        'calls-account-overview.c', 'calls-account-overview.h',
                        'calls-account-row.c', 'calls-account-row.h',
                        'calls-settings.c', 'calls-settings.h',
+                       'calls-secret-store.c', 'calls-secret-store.h',
                       ]) + calls_generated_sources
 
 calls_config_data = config_data