make userdb optional

meson.build

@@ -1,30 +1,42 @@
 project('webfused', 'c', 'cpp', version: '0.6.0', license: 'LGPL-3.0+')
 
 without_tests = get_option('without_tests')
+without_userdb = get_option('without_userdb')
 
 c_compiler = meson.get_compiler('c')
 
-openssl_dep = dependency('openssl', version: '>=1.1.1')
-libconfig_dep = dependency('libconfig', version: '>=1.5')
+libconfig_dep = dependency('libconfig', version: '>=1.4')
 pam_dep = c_compiler.find_library('pam')
 
 libwebsockets_dep = dependency('libwebsockets', version: '>=4.0.0')
-jansson_dep = dependency('jansson', version: '>=2.11')
-libfuse_dep = dependency('fuse3', version: '>=3.8.0')
+libfuse_dep = dependency('fuse3', version: '>=3.1.0')
 
 webfuse_adapter_dep = dependency('webfuse', version: '>=0.5.0')
 
 inc_dir = include_directories('src')
 
+if not without_userdb
+    openssl_dep = dependency('openssl', version: '>=1.1.1')
+    jansson_dep = dependency('jansson', version: '>=2.7')
+
     libuserdb = static_library('userdb',
-    'src/userdb/userdb.c',
+        'src/userdb/userdb_openssl.c',
         include_directories: inc_dir,
-    dependencies: [libconfig_dep, openssl_dep, jansson_dep])
+        dependencies: [openssl_dep, jansson_dep])
 
         libuserdb_dep = declare_dependency(
             include_directories: inc_dir,
             link_with: libuserdb,
-    dependencies: [libconfig_dep, openssl_dep, jansson_dep])
+            dependencies: [openssl_dep, jansson_dep])
+else
+    libuserdb = static_library('userdb',
+        'src/userdb/userdb_none.c',
+        include_directories: inc_dir)
+
+        libuserdb_dep = declare_dependency(
+            include_directories: inc_dir,
+            link_with: libuserdb)
+endif
 
 libwebfused = static_library('webfused',
 	'src/webfused/daemon.c',
@@ -43,13 +55,13 @@ libwebfused = static_library('webfused',
 	'src/webfused/log/stderr_logger.c',
 	'src/webfused/log/syslog_logger.c',
     include_directories: inc_dir,
-    dependencies: [libuserdb_dep, webfuse_adapter_dep, pam_dep],
+    dependencies: [libuserdb_dep, webfuse_adapter_dep, libconfig_dep, pam_dep],
     install: false)
 
 libwebfused_dep = declare_dependency(
     include_directories: inc_dir,
     link_with: libwebfused,
-    dependencies: [libuserdb_dep, webfuse_adapter_dep, pam_dep],
+    dependencies: [libuserdb_dep, webfuse_adapter_dep, libconfig_dep, pam_dep],
     install: false)
 
 webfused = executable('webfused',

meson_options.txt

@@ -1 +1,2 @@
 option('without_tests', type: 'boolean', value: false, description: 'disable unit tests')
+option('without_userdb', type: 'boolean', value: false, description: 'disable userdb')

src/passwd/main.c

@@ -10,7 +10,6 @@
 #include <openssl/opensslv.h>
 #include <openssl/engine.h>
 #include <openssl/evp.h>
-#include <jansson.h>
 #include <userdb/userdb.h>
 
 

src/userdb/userdb_none.c

@@ -0,0 +1,74 @@
+#include "userdb.h"
+#include <stddef.h>
+
+struct userdb * userdb_create(
+    char const * pepper)
+{
+    (void) pepper;
+    return NULL;
+}
+
+void userdb_dispose(struct userdb * db)
+{
+    (void) db;
+}
+
+bool userdb_save(
+    struct userdb * db,
+    char const * filename)
+{
+    (void) db;
+    (void) filename;
+
+    return false;
+}
+
+bool userdb_load_file(
+    struct userdb * db,
+    char const * filename)
+{
+    (void) db;
+    (void) filename;
+
+    return false;
+}
+
+bool userdb_load_string(
+    struct userdb * db,
+    char const * contents)
+{
+    (void) db;
+    (void) contents;
+
+    return false;
+}
+
+void userdb_add(
+    struct userdb * db,
+    char const * username,
+    char const * password)
+{
+    (void) db;
+    (void) username;
+    (void) password;
+}
+
+void userdb_remove(
+    struct userdb * db,
+    char const * user)
+{
+    (void) db;
+    (void) user;
+}
+
+bool userdb_check(
+    struct userdb * db,
+    char const * username,
+    char const * password)
+{
+    (void) db;
+    (void) username;
+    (void) password;
+
+    return false;
+}

src/webfused/config/factory.c

@@ -9,8 +9,8 @@
 #include <stdbool.h>
 
 
-#if ((LIBCONFIG_VER_MAJOR != 1) || (LIBCONFIG_VER_MINOR < 5))
-#error "linconfig 1.5 or higher needed"
+#if ((LIBCONFIG_VER_MAJOR != 1) || (LIBCONFIG_VER_MINOR < 4))
+#error "libconfig 1.5 or higher needed"
 #endif