rest: add checksum to GET /images

Add a new checksum attribute to GET /images, extend database to add a new
checksum field to images table.

src/client.c

@@ -710,7 +710,8 @@ static bool og_dbi_update_image(struct og_dbi *dbi,
 static int update_image_info(struct og_dbi *dbi, const char *image_id,
 			     const char *clonator, const char *compressor,
 			     const char *filesystem, const uint64_t datasize,
-			     uint64_t size, uint64_t lastupdate, uint32_t perms)
+			     uint64_t size, uint64_t lastupdate, uint32_t perms,
+			     const char *checksum)
 {
 	const char *msglog;
 	dbi_result result;
@@ -719,9 +720,9 @@ static int update_image_info(struct og_dbi *dbi, const char *image_id,
 		"UPDATE imagenes"
 		"   SET clonator='%s', compressor='%s',"
 		"       filesystem='%s', datasize=%lld, "
-		"	size=%lld, lastupdate=%lld, permissions=%u "
+		"	size=%lld, lastupdate=%lld, permissions=%u, checksum='%s' "
 		" WHERE idimagen=%s", clonator, compressor, filesystem,
-		datasize, size, lastupdate, perms, image_id);
+		datasize, size, lastupdate, perms, checksum, image_id);
 
 	if (!result) {
 		dbi_conn_error(dbi->conn, &msglog);
@@ -743,6 +744,7 @@ static int og_resp_image_create(json_t *data, struct og_client *cli)
 	const char *compressor = NULL;
 	const char *filesystem = NULL;
 	const char *partition = NULL;
+	const char *checksum = NULL;
 	const char *software = NULL;
 	const char *image_id = NULL;
 	const char *clonator = NULL;
@@ -789,6 +791,8 @@ static int og_resp_image_create(json_t *data, struct og_client *cli)
 			err = og_json_parse_uint64(value, &lastupdate);
 		else if (!strcmp(key, "perms"))
 			err = og_json_parse_uint(value, &perms);
+		else if (!strcmp(key, "checksum"))
+			err = og_json_parse_string(value, &checksum);
 
 		if (err < 0)
 			return err;
@@ -846,7 +850,8 @@ static int og_resp_image_create(json_t *data, struct og_client *cli)
 	}
 
 	res = update_image_info(dbi, image_id, clonator, compressor,
-				filesystem, datasize, size, lastupdate, perms);
+				filesystem, datasize, size, lastupdate, perms,
+				checksum);
 	og_dbi_close(dbi);
 
 	if (res) {

src/dbi.h

@@ -53,9 +53,12 @@ struct og_image_legacy {
 	char code[OG_DB_INT8_MAXLEN + 1];
 };
 
+#define OG_DB_CHECKSUM		128
+
 struct og_image {
 	char name[OG_DB_IMAGE_NAME_MAXLEN + 1];
 	char description[OG_DB_IMAGE_DESCRIPTION_MAXLEN + 1];
+	char checksum[OG_DB_CHECKSUM + 1];
 	uint64_t software_id;
 	uint64_t center_id;
 	uint64_t datasize;

src/rest.c

@@ -3325,6 +3325,8 @@ static json_t *og_json_image_alloc(struct og_image *image)
 			    json_integer(image->repo_id));
 	json_object_set_new(image_json, "description",
 			    json_string(image->description));
+	json_object_set_new(image_json, "checksum",
+			    json_string(image->checksum));
 
 	return image_json;
 }
@@ -3366,7 +3368,7 @@ static int og_cmd_images(char *buffer_reply)
 				 "	 i.lastupdate, i.permissions, "
 				 "       i.idperfilsoft, i.tipo, "
 				 "       i.idimagen, i.idrepositorio, "
-				 "	 i.descripcion "
+				 "	 i.descripcion, i.checksum "
 				 "FROM imagenes i "
 				 "LEFT JOIN ordenadores o "
 				 "ON i.idordenador = o.idordenador ");
@@ -3381,10 +3383,14 @@ static int og_cmd_images(char *buffer_reply)
 		image.type = dbi_result_get_ulonglong(result, "tipo");
 		image.id = dbi_result_get_ulonglong(result, "idimagen");
 		image.repo_id = dbi_result_get_ulonglong(result, "idrepositorio");
+		snprintf(image.checksum, sizeof(image.checksum), "%s",
+			 dbi_result_get_string(result, "checksum"));
 		snprintf(image.name, sizeof(image.name), "%s",
 			 dbi_result_get_string(result, "nombreca"));
 		snprintf(image.description, sizeof(image.description), "%s",
 			 dbi_result_get_string(result, "descripcion"));
+		snprintf(image.checksum, sizeof(image.checksum), "%s",
+			 dbi_result_get_string(result, "checksum"));
 
 		image_json = og_json_image_alloc(&image);
 		if (!image_json) {

src/schema.c

@@ -306,6 +306,35 @@ static int og_dbi_schema_v6(struct og_dbi *dbi)
 	return 0;
 }
 
+static int og_dbi_schema_v7(struct og_dbi *dbi)
+{
+	const char *msglog;
+	dbi_result result;
+
+	syslog(LOG_DEBUG, "Adding checksum to imagenes\n");
+	result = dbi_conn_query(dbi->conn,
+				"ALTER TABLE `imagenes` "
+				"ADD `checksum` varchar(128) NOT NULL DEFAULT ''");
+	if (!result) {
+		dbi_conn_error(dbi->conn, &msglog);
+		syslog(LOG_INFO, "Error when adding checksum (%s:%d) %s\n",
+		       __func__, __LINE__, msglog);
+		return -1;
+	}
+	dbi_result_free(result);
+
+	result = dbi_conn_query(dbi->conn, "UPDATE version SET version = 7");
+	if (!result) {
+		dbi_conn_error(dbi->conn, &msglog);
+		syslog(LOG_INFO, "Could not update version row (%s:%d) %s\n",
+		       __func__, __LINE__, msglog);
+		return -1;
+	}
+	dbi_result_free(result);
+
+	return 0;
+}
+
 static struct og_schema_version {
 	int	version;
 	int	(*update)(struct og_dbi *dbi);
@@ -316,6 +345,7 @@ static struct og_schema_version {
 	{	.version = 4,	.update = og_dbi_schema_v4	},
 	{	.version = 5,	.update = og_dbi_schema_v5	},
 	{	.version = 6,	.update = og_dbi_schema_v6	},
+	{	.version = 7,	.update = og_dbi_schema_v7,	},
 	{	0,		NULL				},
 };