From 61afd7a76367158fe3d7f460e28eb2d28ef69e2e Mon Sep 17 00:00:00 2001
From: Alexander Couzens <lynxis@fe80.eu>
Date: Tue, 14 Jun 2022 18:13:00 +0200
Subject: [PATCH] PCRF: allow to build without mongodb

---
 lib/dbi/ims.c          | 13 +++++++++++++
 lib/dbi/ogs-mongoc.c   | 31 +++++++++++++++++++++++++++++--
 lib/dbi/ogs-mongoc.h   |  2 --
 lib/dbi/session.c      | 10 ++++++++++
 lib/dbi/subscription.c | 29 +++++++++++++++++++++++++++++
 meson.build            |  2 +-
 meson_options.txt      |  1 +
 7 files changed, 83 insertions(+), 5 deletions(-)

diff --git a/lib/dbi/ims.c b/lib/dbi/ims.c
index bdff0425c..def3665bf 100644
--- a/lib/dbi/ims.c
+++ b/lib/dbi/ims.c
@@ -19,6 +19,7 @@
 
 #include "ogs-dbi.h"
 
+#ifdef OGS_DBI_WITH_MONGODB
 int ogs_dbi_msisdn_data(
         char *imsi_or_msisdn_bcd, ogs_msisdn_data_t *msisdn_data)
 {
@@ -212,3 +213,15 @@ out:
 
     return rv;
 }
+#else /* OGS_DBI_WITH_MONGODB */
+int ogs_dbi_msisdn_data(
+        char *imsi_or_msisdn_bcd, ogs_msisdn_data_t *msisdn_data)
+{
+    return OGS_ERROR;
+}
+
+int ogs_dbi_ims_data(char *supi, ogs_ims_data_t *ims_data)
+{
+    return OGS_ERROR;
+}
+#endif
diff --git a/lib/dbi/ogs-mongoc.c b/lib/dbi/ogs-mongoc.c
index 19026aca7..21f5d1eaf 100644
--- a/lib/dbi/ogs-mongoc.c
+++ b/lib/dbi/ogs-mongoc.c
@@ -17,12 +17,14 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-#include <mongoc.h>
-
 #include "ogs-dbi.h"
 
 int __ogs_dbi_domain;
 
+#ifdef OGS_DBI_WITH_MONGODB
+#include <mongoc.h>
+
+
 static ogs_mongoc_t self;
 
 /*
@@ -184,3 +186,28 @@ void ogs_dbi_final()
 
     ogs_mongoc_final();
 }
+
+#else /* OGS_DBI_WITH_MONGODB */
+int ogs_mongoc_init(const char *db_uri)
+{
+    return OGS_ERROR;
+}
+
+void ogs_mongoc_final(void)
+{
+}
+
+ogs_mongoc_t *ogs_mongoc(void)
+{
+    return NULL;
+}
+
+int ogs_dbi_init(const char *db_uri)
+{
+    return OGS_OK;
+}
+
+void ogs_dbi_final()
+{
+}
+#endif
diff --git a/lib/dbi/ogs-mongoc.h b/lib/dbi/ogs-mongoc.h
index 9e3b4515b..5caa37985 100644
--- a/lib/dbi/ogs-mongoc.h
+++ b/lib/dbi/ogs-mongoc.h
@@ -24,8 +24,6 @@
 #ifndef OGS_MONGOC_H
 #define OGS_MONGOC_H
 
-#include <mongoc.h>
-
 #ifdef __cplusplus
 extern "C" {
 #endif /* __cplusplus */
diff --git a/lib/dbi/session.c b/lib/dbi/session.c
index d0edb7218..9ad5302c8 100644
--- a/lib/dbi/session.c
+++ b/lib/dbi/session.c
@@ -19,6 +19,7 @@
 
 #include "ogs-dbi.h"
 
+#ifdef OGS_DBI_WITH_MONGODB
 int ogs_dbi_session_data(char *supi, ogs_s_nssai_t *s_nssai, char *dnn,
         ogs_session_data_t *session_data)
 {
@@ -500,3 +501,12 @@ out:
 
     return rv;
 }
+
+#else /* OGS_DBI_WITH_MONGODB */
+
+int ogs_dbi_session_data(char *supi, ogs_s_nssai_t *s_nssai, char *dnn,
+        ogs_session_data_t *session_data)
+{
+    return OGS_ERROR;
+}
+#endif /* OGS_DBI_WITH_MONGODB */
diff --git a/lib/dbi/subscription.c b/lib/dbi/subscription.c
index dfd86214f..a5b58e556 100644
--- a/lib/dbi/subscription.c
+++ b/lib/dbi/subscription.c
@@ -19,6 +19,7 @@
 
 #include "ogs-dbi.h"
 
+#ifdef OGS_DBI_WITH_MONGODB
 int ogs_dbi_auth_info(char *supi, ogs_dbi_auth_info_t *auth_info)
 {
     int rv = OGS_OK;
@@ -661,3 +662,31 @@ out:
 
     return rv;
 }
+#else
+int ogs_dbi_auth_info(char *supi, ogs_dbi_auth_info_t *auth_info)
+{
+    return OGS_ERROR;
+}
+
+int ogs_dbi_update_sqn(char *supi, uint64_t sqn)
+{
+    return OGS_ERROR;
+}
+
+int ogs_dbi_update_imeisv(char *supi, char *imeisv)
+{
+    return OGS_ERROR;
+}
+
+int ogs_dbi_increment_sqn(char *supi)
+{
+	return OGS_ERROR;
+}
+
+int ogs_dbi_subscription_data(char *supi,
+        ogs_subscription_data_t *subscription_data)
+{
+    return OGS_ERROR;
+}
+
+#endif /* OGS_DBI_WITH_MONGODB */
diff --git a/meson.build b/meson.build
index 03009673d..309b912d7 100644
--- a/meson.build
+++ b/meson.build
@@ -115,7 +115,7 @@ subdir('src')
 subdir('misc')
 # Don't build the tests unless we can run them (either natively or in an exe wrapper)
 build_tests = not meson.is_cross_build() or (meson.is_cross_build() and meson.has_exe_wrapper())
-if build_tests
+if build_tests and get_option('mongodb')
     subdir('tests')
 endif
 
diff --git a/meson_options.txt b/meson_options.txt
index 9350a6b8f..d27ac523d 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1 +1,2 @@
 option('metrics_impl', type : 'combo', choices : ['void', 'prometheus'], value : 'void', description : 'libogsmetrics implementation')
+option('mongodb', type : 'boolean', value : 'false', description : 'build with mongo db support')