Add sysdb_update_members function

This function will take a user, a list of groups that this user
should be added to and a list of groups the user should be removed
from and will recursively call sysdb_[add|remove]_group_member

Includes a unit test

src/db/sysdb.h

@@ -453,6 +453,11 @@ int sysdb_remove_group_member(TALLOC_CTX *mem_ctx,
                               struct sss_domain_info *domain,
                               const char *group,
                               const char *user);
+errno_t sysdb_update_members(struct sysdb_ctx *sysdb,
+                             struct sss_domain_info *domain,
+                             const char *user,
+                             const char **add_groups,
+                             const char **del_groups);
 
 /* Password caching function.
  * If you are in a transaction ignore sysdb and pass in the handle.

src/db/sysdb_ops.c

@@ -2199,3 +2199,59 @@ int sysdb_cache_auth(TALLOC_CTX *mem_ctx,
     }
     return ret;
 }
+
+errno_t sysdb_update_members(struct sysdb_ctx *sysdb,
+                             struct sss_domain_info *domain,
+                             const char *user,
+                             const char **add_groups,
+                             const char **del_groups)
+{
+    errno_t ret;
+    int i;
+
+    TALLOC_CTX *tmp_ctx = talloc_new(NULL);
+    if(!tmp_ctx) {
+        return ENOMEM;
+    }
+
+    ret = sysdb_transaction_start(sysdb);
+    if (ret != EOK) {
+        DEBUG(0, ("Failed to start update transaction\n"));
+        goto done;
+    }
+
+    if (add_groups) {
+        /* Add the user to all add_groups */
+        for (i = 0; add_groups[i]; i++) {
+            ret = sysdb_add_group_member(tmp_ctx, sysdb, domain,
+                                         add_groups[i], user);
+            if (ret != EOK) {
+                DEBUG(1, ("Could not add user [%s] to group [%s]. "
+                          "Skipping.\n"));
+                /* Continue on, we should try to finish the rest */
+            }
+        }
+    }
+
+    if (del_groups) {
+        /* Remove the user from all del_groups */
+        for (i = 0; del_groups[i]; i++) {
+            ret = sysdb_remove_group_member(tmp_ctx, sysdb, domain,
+                                            del_groups[i], user);
+            if (ret != EOK) {
+                DEBUG(1, ("Could not remove user [%s] from group [%s]. "
+                          "Skipping\n"));
+                /* Continue on, we should try to finish the rest */
+            }
+        }
+    }
+
+    ret = sysdb_transaction_commit(sysdb);
+
+done:
+    if (ret != EOK) {
+        sysdb_transaction_cancel(sysdb);
+    }
+    talloc_free(tmp_ctx);
+    return ret;
+}

src/tests/sysdb-tests.c

@@ -2105,6 +2105,59 @@ START_TEST (test_sysdb_attrs_to_list)
 }
 END_TEST
 
+START_TEST (test_sysdb_update_members)
+{
+    struct sysdb_test_ctx *test_ctx;
+    char **add_groups;
+    char **del_groups;
+    const char *user = "testuser27000";
+    errno_t ret;
+
+    /* Setup */
+    ret = setup_sysdb_tests(&test_ctx);
+    fail_unless(ret == EOK, "Could not set up the test");
+
+    /* Add a user to two groups */
+    add_groups = talloc_array(test_ctx, char *, 3);
+    add_groups[0] = talloc_strdup(add_groups, "testgroup28001");
+    add_groups[1] = talloc_strdup(add_groups, "testgroup28002");
+    add_groups[2] = NULL;
+
+    ret = sysdb_update_members(test_ctx->sysdb, test_ctx->domain, user,
+                               (const char **)add_groups, NULL);
+    fail_unless(ret == EOK, "Could not add groups");
+    talloc_zfree(add_groups);
+
+    /* Remove a user from one group and add to another */
+    del_groups = talloc_array(test_ctx, char *, 2);
+    del_groups[0] = talloc_strdup(del_groups, "testgroup28001");
+    del_groups[1] = NULL;
+    add_groups = talloc_array(test_ctx, char *, 2);
+    add_groups[0] = talloc_strdup(add_groups, "testgroup28003");
+    add_groups[1] = NULL;
+
+    ret = sysdb_update_members(test_ctx->sysdb, test_ctx->domain, user,
+                               (const char **)add_groups,
+                               (const char **)del_groups);
+    fail_unless(ret == EOK, "Group replace failed");
+    talloc_zfree(add_groups);
+    talloc_zfree(del_groups);
+
+    /* Remove a user from two groups */
+    del_groups = talloc_array(test_ctx, char *, 3);
+    del_groups[0] = talloc_strdup(del_groups, "testgroup28002");
+    del_groups[1] = talloc_strdup(del_groups, "testgroup28003");
+    del_groups[2] = NULL;
+
+    ret = sysdb_update_members(test_ctx->sysdb, test_ctx->domain,
+                               user, NULL,
+                               (const char **)del_groups);
+    fail_unless(ret == EOK, "Could not remove groups");
+
+    talloc_zfree(test_ctx);
+}
+END_TEST
+
 Suite *create_sysdb_suite(void)
 {
     Suite *s = suite_create("sysdb");
@@ -2129,6 +2182,9 @@ Suite *create_sysdb_suite(void)
     /* test the change */
     tcase_add_loop_test(tc_sysdb, test_sysdb_get_user_attr, 27000, 27010);
 
+    /* Add and remove users in a group with sysdb_update_members */
+    tcase_add_test(tc_sysdb, test_sysdb_update_members);
+
     /* Remove the other half by gid */
     tcase_add_loop_test(tc_sysdb, test_sysdb_remove_local_group_by_gid, 28000, 28010);