rest: extend /repository/add

POST /repository/add checks validity of the repository ip address
specified in the request payload.

/repository/add can optionally receive a center id parameter inside its
request payload. For backward compatibility, the default center id (1)
is used if no center is received inside the request payload.

POST /repository/add returns a JSON response payload containing relevant
fields from the inserted repository.

$ curl 	-D-
	\ -X POST
	\ -H "Authorization: a0e9ab768cbe93dab5b1998e952bcdb7"
  	\ --json '{"name": "helloworld", "ip": "192.168.21.21a", "center": 2}'
	\ localhost:8888/repository/add
HTTP/1.1 400 Bad Request
Content-Length: 0

$ curl 	-D-
	\ -X POST
	\ -H "Authorization: a0e9ab768cbe93dab5b1998e952bcdb7"
  	\ --json '{"name": "helloworld", "ip": "192.168.21.21a", "center": 2}'
	\ localhost:8888/repository/add
HTTP/1.1 200 OK
Content-Length: 54

{"id": 7, "ip": "192.168.21.21", "name": "helloworld"}

src/dbi.h

@@ -106,6 +106,7 @@ struct og_room {
 };
 
 struct og_repository {
+	unsigned int	center;
 	char	name[OG_DB_REPO_NAME_MAXLEN];
 	char	ip[OG_DB_IP_MAXLEN];
 };

src/rest.c

@@ -5199,14 +5199,21 @@ static int og_cmd_post_task_add(json_t *element,
 }
 
 static int og_cmd_post_repository_add(json_t *element,
-				      struct og_msg_params *params)
+				      struct og_msg_params *params,
+				      char *buffer_reply)
 {
-	struct og_repository repo = {};
+	struct og_buffer og_buffer = {
+		.data	= buffer_reply,
+	};
+	struct og_repository repo = {
+		.center = 1,
+	};
 	const char *key, *msglog;
+	json_t *value, *root;
+	struct in_addr addr;
 	struct og_dbi *dbi;
 	dbi_result result;
-	json_t *value;
-	int err = 0;
+	int err = 0, id;
 
 	json_object_foreach(element, key, value) {
 		if (!strcmp(key, "name")) {
@@ -5219,6 +5226,8 @@ static int og_cmd_post_repository_add(json_t *element,
 							repo.ip,
 							sizeof(repo.ip));
 			params->flags |= OG_REST_PARAM_ADDR;
+		} else if (!strcmp(key, "center")) {
+			err = og_json_parse_uint(value, &repo.center);
 		}
 
 		if (err < 0)
@@ -5229,6 +5238,12 @@ static int og_cmd_post_repository_add(json_t *element,
 					    OG_REST_PARAM_ADDR))
 		return -1;
 
+	if (inet_pton(AF_INET, repo.ip, &addr) <= 0) {
+		syslog(LOG_ERR, "invalid server ip address (%s:%d)\n",
+		       __func__, __LINE__);
+		return -1;
+	}
+
 	dbi = og_dbi_open(&ogconfig.db);
 	if (!dbi) {
 		syslog(LOG_ERR, "cannot open conection database (%s:%d)\n",
@@ -5238,8 +5253,9 @@ static int og_cmd_post_repository_add(json_t *element,
 
 	result = dbi_conn_queryf(dbi->conn,
 				 "INSERT INTO repositorios("
-				 "nombrerepositorio, ip) VALUES ('%s', '%s')",
-				 repo.name, repo.ip);
+				 "nombrerepositorio, ip, idcentro, grupoid) VALUES "
+				 "('%s', '%s', %u, 0)",
+				 repo.name, repo.ip, repo.center);
 
 	if (!result) {
 		dbi_conn_error(dbi->conn, &msglog);
@@ -5249,6 +5265,26 @@ static int og_cmd_post_repository_add(json_t *element,
 		og_dbi_close(dbi);
 		return -1;
 	}
+
+	root = json_object();
+	if (!root) {
+		syslog(LOG_ERR, "Cannot allocate JSON object (%s:%d)\n",
+		       __func__, __LINE__);
+		dbi_result_free(result);
+		og_dbi_close(dbi);
+		return -1;
+	}
+	id = dbi_conn_sequence_last(dbi->conn, NULL);
+	json_object_set_new(root, "id", json_integer(id));
+	json_object_set_new(root, "ip", json_string(repo.ip));
+	json_object_set_new(root, "name", json_string(repo.name));
+	json_object_set_new(root, "center", json_integer(repo.center));
+	if (json_dump_callback(root, og_json_dump_clients, &og_buffer, 0)) {
+		json_decref(root);
+		return -1;
+	}
+
+	json_decref(root);
 	dbi_result_free(result);
 	og_dbi_close(dbi);
 
@@ -6488,7 +6524,7 @@ int og_client_state_process_payload_rest(struct og_client *cli)
 			err = og_client_bad_request(cli);
 			goto err_process_rest_payload;
 		}
-		err = og_cmd_post_repository_add(root, &params);
+		err = og_cmd_post_repository_add(root, &params, buf_reply);
 	} else if (!strncmp(cmd, "repository/delete",
 			    strlen("repository/delete"))) {
 		if (method != OG_METHOD_POST) {