398 lines
10 KiB
C
398 lines
10 KiB
C
/****************************************************************************
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* This file is part of the project AqHome.
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* AqHome (c) by 2024 Martin Preuss, all rights reserved.
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*
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* The license for this file can be found in the file COPYING which you
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* should have received along with this file.
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "./devicesread.h"
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#include "./server_p.h"
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#include "aqhome/aqhome.h"
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#include <gwenhywfar/directory.h>
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#include <gwenhywfar/debug.h>
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#include <gwenhywfar/stringlist.h>
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/* ------------------------------------------------------------------------------------------------
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* defines
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* ------------------------------------------------------------------------------------------------
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*/
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/* ------------------------------------------------------------------------------------------------
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* forward declarations
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* ------------------------------------------------------------------------------------------------
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*/
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static int _readDeviceFileToList(const char *sFilename, AQHNODE_DEVICE_LIST *deviceList);
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static AQHNODE_DEVICE_LIST *_readDeviceFiles(const GWEN_STRINGLIST *sl);
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static int _readXmlDevices(GWEN_XMLNODE *deviceListNode, AQHNODE_DEVICE_LIST *deviceList);
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static AQHNODE_DEVICE *_readXmlDevice(GWEN_XMLNODE *deviceNode);
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static AQHNODE_VALUE_LIST *_readXmlValueList(GWEN_XMLNODE *valuesNode);
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static AQHNODE_VALUE *_readXmlValue(GWEN_XMLNODE *valueNode);
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static int _readManufacturer(AQHNODE_DEVICE *device, GWEN_XMLNODE *deviceNode);
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static int _readDeviceType(AQHNODE_DEVICE *device, GWEN_XMLNODE *deviceNode);
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static int _readDeviceVersion(AQHNODE_DEVICE *device, GWEN_XMLNODE *deviceNode);
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/* ------------------------------------------------------------------------------------------------
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* implementations
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* ------------------------------------------------------------------------------------------------
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*/
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AQHNODE_DEVICE_LIST *AQH_NodeServer_ReadDeviceFile(const char *sFilename)
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{
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int rv;
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rv=GWEN_Directory_GetPath(sFilename, GWEN_PATH_FLAGS_CHECKROOT | GWEN_PATH_FLAGS_PATHMUSTEXIST | GWEN_PATH_FLAGS_VARIABLE);
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if (rv<0) {
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DBG_ERROR(NULL, "File \"%s\" does not exists, writing later", sFilename);
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return NULL;
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}
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else {
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AQHNODE_DEVICE_LIST *deviceList;
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deviceList=AQHNODE_Device_List_new();
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rv=_readDeviceFileToList(sFilename, deviceList);
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if (rv<0) {
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DBG_ERROR(NULL, "File \"%s\" not found", sFilename);
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AQHNODE_Device_List_free(deviceList);
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return NULL;
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}
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if (AQHNODE_Device_List_GetCount(deviceList)<1) {
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AQHNODE_Device_List_free(deviceList);
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return NULL;
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}
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return deviceList;
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}
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}
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AQHNODE_DEVICE_LIST *AQH_NodeServer_ReadDataDeviceFiles()
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{
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GWEN_STRINGLIST *sl;
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sl=AQH_GetListOfMatchingDataFiles("aqhome/devices/nodes", "*.xml");
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if (sl) {
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AQHNODE_DEVICE_LIST *deviceList;
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deviceList=_readDeviceFiles(sl);
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GWEN_StringList_free(sl);
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if (deviceList==NULL) {
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DBG_INFO(NULL, "Error reading data device files");
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return NULL;
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}
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return deviceList;
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}
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else {
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DBG_ERROR(NULL, "No data device files");
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return NULL;
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}
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}
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AQHNODE_DEVICE_LIST *_readDeviceFiles(const GWEN_STRINGLIST *sl)
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{
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GWEN_STRINGLISTENTRY *se;
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AQHNODE_DEVICE_LIST *deviceList;
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deviceList=AQHNODE_Device_List_new();
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se=GWEN_StringList_FirstEntry(sl);
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while(se) {
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const char *s;
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s=GWEN_StringListEntry_Data(se);
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if (s && *s) {
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int rv;
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DBG_INFO(NULL, "Reading device file \"%s\"", s);
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rv=_readDeviceFileToList(s, deviceList);
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if (rv<0 && rv!=GWEN_ERROR_NO_DATA) {
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DBG_WARN(NULL, "Error reading device file \"%s\" (%d), ignoring", s, rv);
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}
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}
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se=GWEN_StringListEntry_Next(se);
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}
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if (AQHNODE_Device_List_GetCount(deviceList)<1) {
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AQHNODE_Device_List_free(deviceList);
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return NULL;
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}
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return deviceList;
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}
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int _readDeviceFileToList(const char *sFilename, AQHNODE_DEVICE_LIST *deviceList)
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{
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GWEN_XMLNODE *rootNode;
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GWEN_XMLNODE *deviceListNode;
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int rv;
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rootNode=GWEN_XMLNode_new(GWEN_XMLNodeTypeTag, NULL);
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rv=GWEN_XML_ReadFile(rootNode, sFilename, GWEN_XML_FLAGS_DEFAULT);
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if (rv<0) {
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DBG_ERROR(NULL, "Error reading XML file \"%s\": %d", sFilename, rv);
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GWEN_XMLNode_free(rootNode);
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return rv;
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}
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deviceListNode=GWEN_XMLNode_FindFirstTag(rootNode, "devices", NULL, NULL);
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if (deviceListNode==NULL)
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deviceListNode=rootNode;
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rv=_readXmlDevices(deviceListNode, deviceList);
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if (rv<0 && rv!=GWEN_ERROR_NO_DATA) {
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DBG_ERROR(AQH_LOGDOMAIN, "Error reading devices from file \"%s\" (%d)", sFilename, rv);
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GWEN_XMLNode_free(rootNode);
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return rv;
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}
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GWEN_XMLNode_free(rootNode);
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return 0;
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}
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int _readXmlDevices(GWEN_XMLNODE *deviceListNode, AQHNODE_DEVICE_LIST *deviceList)
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{
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GWEN_XMLNODE *deviceNode;
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deviceNode=GWEN_XMLNode_FindFirstTag(deviceListNode, "device", NULL, NULL);
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if (deviceNode) {
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while(deviceNode) {
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const char *driverName;
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driverName=GWEN_XMLNode_GetProperty(deviceNode, "driver", NULL);
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if (driverName && *driverName && strcasecmp(driverName, "nodes")==0) {
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AQHNODE_DEVICE *device;
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device=_readXmlDevice(deviceNode);
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if (device==NULL) {
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DBG_INFO(NULL, "Error reading device from XML");
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return GWEN_ERROR_BAD_DATA;
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}
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else {
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const char *sDeviceName;
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sDeviceName=AQHNODE_Device_GetName(device);
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if (sDeviceName && *sDeviceName) {
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DBG_ERROR(NULL, "Adding device type \"%s\" to list", sDeviceName?sDeviceName:"<no type name>");
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AQHNODE_Device_List_Add(device, deviceList);
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}
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else {
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DBG_ERROR(NULL, "Device with no name, not adding");
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AQHNODE_Device_free(device);
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}
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}
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}
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else {
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DBG_INFO(NULL, "Device is not an NODES device, ignoring");
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}
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deviceNode=GWEN_XMLNode_FindNextTag(deviceNode, "device", NULL, NULL);
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} /* while */
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return 0;
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}
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else {
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DBG_INFO(NULL, "No <device> element found");
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return GWEN_ERROR_NO_DATA;
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}
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}
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AQHNODE_DEVICE *_readXmlDevice(GWEN_XMLNODE *deviceNode)
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{
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AQHNODE_DEVICE *device;
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GWEN_XMLNODE *valuesNode;
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int rv;
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device=AQHNODE_Device_new();
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AQHNODE_Device_SetName(device, GWEN_XMLNode_GetProperty(deviceNode, "name", NULL));
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AQHNODE_Device_SetDriver(device, GWEN_XMLNode_GetProperty(deviceNode, "driver", NULL));
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rv=_readManufacturer(device, deviceNode);
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if (rv<0) {
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DBG_INFO(NULL, "here (%d)", rv);
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AQHNODE_Device_free(device);
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return NULL;
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}
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rv=_readDeviceType(device, deviceNode);
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if (rv<0) {
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DBG_INFO(NULL, "here (%d)", rv);
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AQHNODE_Device_free(device);
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return NULL;
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}
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rv=_readDeviceVersion(device, deviceNode);
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if (rv<0) {
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DBG_INFO(NULL, "here (%d)", rv);
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AQHNODE_Device_free(device);
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return NULL;
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}
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/* read values */
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valuesNode=GWEN_XMLNode_FindFirstTag(deviceNode, "values", NULL, NULL);
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if (valuesNode) {
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AQHNODE_VALUE_LIST *valueList;
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valueList=_readXmlValueList(valuesNode);
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if (valueList==NULL) {
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DBG_INFO(NULL, "here");
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AQHNODE_Device_free(device);
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return NULL;
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}
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AQHNODE_Device_SetValueList(device, valueList);
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}
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else {
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DBG_INFO(NULL, "No <values> element");
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AQHNODE_Device_free(device);
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return NULL;
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}
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return device;
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}
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AQHNODE_VALUE_LIST *_readXmlValueList(GWEN_XMLNODE *valuesNode)
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{
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AQHNODE_VALUE_LIST *valueList;
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GWEN_XMLNODE *node;
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valueList=AQHNODE_Value_List_new();
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node=GWEN_XMLNode_FindFirstTag(valuesNode, "value", NULL, NULL);
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while(node) {
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AQHNODE_VALUE *value;
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value=_readXmlValue(node);
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if (value)
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AQHNODE_Value_List_Add(value, valueList);
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else {
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DBG_INFO(NULL, "Error reading <value> element");
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AQHNODE_Value_List_free(valueList);
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return NULL;
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}
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node=GWEN_XMLNode_FindNextTag(node, "value", NULL, NULL);
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}
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if (AQHNODE_Value_List_GetCount(valueList)<1) {
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DBG_INFO(NULL, "No <value> element in <values> element");
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AQHNODE_Value_List_free(valueList);
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return NULL;
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}
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return valueList;
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}
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AQHNODE_VALUE *_readXmlValue(GWEN_XMLNODE *valueNode)
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{
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AQHNODE_VALUE *value;
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value=AQHNODE_Value_new();
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AQHNODE_Value_SetName(value, GWEN_XMLNode_GetProperty(valueNode, "name", NULL));
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AQHNODE_Value_SetId(value, GWEN_XMLNode_GetIntProperty(valueNode, "id", 0));
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AQHNODE_Value_SetValueUnits(value, GWEN_XMLNode_GetProperty(valueNode, "units", NULL));
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AQHNODE_Value_SetValueType(value, AQH_ValueType_fromString(GWEN_XMLNode_GetProperty(valueNode, "type", NULL)));
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AQHNODE_Value_SetDataType(value, AQH_ValueDataType_fromString(GWEN_XMLNode_GetProperty(valueNode, "dataType", NULL)));
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AQHNODE_Value_SetModality(value, AQH_ValueModality_fromString(GWEN_XMLNode_GetProperty(valueNode, "modality", NULL)));
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AQHNODE_Value_SetDenom(value, GWEN_XMLNode_GetIntProperty(valueNode, "denom", 1));
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return value;
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}
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int _readManufacturer(AQHNODE_DEVICE *device, GWEN_XMLNODE *deviceNode)
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{
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const char *s;
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uint32_t v;
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s=GWEN_XMLNode_GetCharValue(deviceNode, "manufacturer", NULL);
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if (!(s && *s)) {
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DBG_ERROR(NULL, "Missing manufacturer");
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return GWEN_ERROR_BAD_DATA;
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}
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if (strlen(s)>4) {
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DBG_ERROR(NULL, "Bad manufacturer string (too long): \"%s\"", s);
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return GWEN_ERROR_BAD_DATA;
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}
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v=0;
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while(*s) {
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v<<=8;
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v|=*s & 0xff;
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s++;
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}
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v=((v>>24) & 0x000000ffL) |
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((v>>8) & 0x0000ff00L) |
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((v<<8) & 0x00ff0000L) |
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((v<<24) & 0xff000000L);
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AQHNODE_Device_SetManufacturer(device, v);
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return 0;
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}
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int _readDeviceType(AQHNODE_DEVICE *device, GWEN_XMLNODE *deviceNode)
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{
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const char *s;
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uint16_t v;
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s=GWEN_XMLNode_GetCharValue(deviceNode, "devicetype", NULL);
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if (!(s && *s)) {
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DBG_ERROR(NULL, "Missing device type");
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return GWEN_ERROR_BAD_DATA;
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}
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if (strlen(s)>2) {
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DBG_ERROR(NULL, "Bad devicetype string (too long): \"%s\"", s);
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return GWEN_ERROR_BAD_DATA;
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}
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v=0;
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while(*s) {
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v<<=8;
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v|=*s & 0xff;
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s++;
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}
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AQHNODE_Device_SetDeviceType(device, v);
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return 0;
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}
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int _readDeviceVersion(AQHNODE_DEVICE *device, GWEN_XMLNODE *deviceNode)
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{
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int v;
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v=GWEN_XMLNode_GetIntValue(deviceNode, "deviceversion", -1);
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if (v<0) {
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DBG_ERROR(NULL, "Missing device version");
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return GWEN_ERROR_BAD_DATA;
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}
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AQHNODE_Device_SetDeviceVersion(device, v<<8);
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return 0;
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}
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