Improved code sharing.
we now have a base url handler which handles listing, adding and editing any objects including permission management.
This commit is contained in:
Martin Preuss
458
apps/aqhome-storage/u_objects.c
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458
apps/aqhome-storage/u_objects.c
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@@ -0,0 +1,458 @@
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/****************************************************************************
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* This file is part of the project AqHome.
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* AqHome (c) by 2023 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 "./u_objects_p.h"
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#include "./u_base.h"
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#include "./aqhomehttp.h"
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#include "aqhome/http/httpservice_http.h"
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#include <gwenhywfar/gwenhywfar.h>
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#include <gwenhywfar/debug.h>
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#include <gwenhywfar/i18n.h>
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GWEN_INHERIT(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS);
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/* ------------------------------------------------------------------------------------------------
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* forward declarations
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* ------------------------------------------------------------------------------------------------
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*/
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static void GWENHYWFAR_CB _freeData(void *bp, void *p);
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static int _handleUrl(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq);
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static GWEN_MSG *_handleGet(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq);
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static GWEN_MSG *_handlePost(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq);
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static void _handleGetList(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_BUFFER *pageBuf);
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static void _handleGetAdd(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_BUFFER *pageBuf);
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static void _handleGetEdit(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, int id, GWEN_BUFFER *pageBuf);
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static GWEN_MSG *_handlePostAdd(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq);
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static GWEN_MSG *_handlePostEdit(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, int id);
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static int _writeAddPage(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_DB_NODE *dbValues, GWEN_BUFFER *pageBuf);
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static int _writeEditPage(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_DB_NODE *dbValues, GWEN_BUFFER *pageBuf);
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static GWEN_MSG *_addOrEditAndCreateResponse(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, int id, AQH_HTTP_URLHANDLER_WRITEPAGE_CB cb);
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static int _addOrEditObject(AQH_HTTP_URLHANDLER *uh, GWEN_DB_NODE *db, int id);
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static GWEN_DB_NODE *_findObjectByIdAndReturnAsDb(AQH_HTTP_URLHANDLER *uh, int id);
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static void _listObjectsIntoBuffer(AQH_HTTP_URLHANDLER *uh, GWEN_BUFFER *pageBuf);
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/* ------------------------------------------------------------------------------------------------
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* implementations
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* ------------------------------------------------------------------------------------------------
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*/
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AQH_HTTP_URLHANDLER *AQH_ObjectsHttpUrlHandler_new(AQH_SERVICE *sv,
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uint32_t neededPermsList,
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uint32_t neededPermsAdd,
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uint32_t neededPermsDel,
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uint32_t neededPermsEdit,
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const char *urlForObjectList)
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{
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AQH_HTTP_URLHANDLER *uh;
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AQH_URLHANDLER_OBJECTS *xuh;
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uh=AQH_HttpUrlHandler_new(sv);
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GWEN_NEW_OBJECT(AQH_URLHANDLER_OBJECTS, xuh);
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GWEN_INHERIT_SETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh, xuh, _freeData);
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AQH_HttpUrlHandler_SetHandleFn(uh, _handleUrl);
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xuh->neededPermsList=neededPermsList;
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xuh->neededPermsAdd=neededPermsAdd;
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xuh->neededPermsDel=neededPermsDel;
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xuh->neededPermsEdit=neededPermsEdit;
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xuh->urlForObjectList=urlForObjectList?strdup(urlForObjectList):NULL;
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return uh;
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}
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void _freeData(void *bp, void *p)
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{
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AQH_URLHANDLER_OBJECTS *xuh;
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xuh=(AQH_URLHANDLER_OBJECTS*)p;
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free(xuh->urlForObjectList);
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GWEN_FREE_OBJECT(xuh);
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}
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void AQH_ObjectsHttpUrlHandler_SetAddOrEditObjectFn(AQH_HTTP_URLHANDLER *uh, AQH_OBJECTSHTTPURLHANDLER_ADDOREDITOBJECT_FN fn)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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if (xuh) {
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xuh->addOrEditObjectFn=fn;
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}
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}
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void AQH_ObjectsHttpUrlHandler_SetFindObjectByIdAndReturnAsDbFn(AQH_HTTP_URLHANDLER *uh,
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AQH_OBJECTSHTTPURLHANDLER_FINDOBJECTBYIDANDRETURNASDB_FN fn)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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if (xuh) {
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xuh->findObjectByIdAndReturnAsDbFn=fn;
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}
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}
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void AQH_ObjectsHttpUrlHandler_SetWriteAddPageFn(AQH_HTTP_URLHANDLER *uh, AQH_OBJECTSHTTPURLHANDLER_WRITEADDPAGE_FN fn)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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if (xuh) {
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xuh->writeAddPageFn=fn;
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}
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}
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void AQH_ObjectsHttpUrlHandler_SetWriteEditPageFn(AQH_HTTP_URLHANDLER *uh, AQH_OBJECTSHTTPURLHANDLER_WRITEEDITPAGE_FN fn)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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if (xuh) {
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xuh->writeEditPageFn=fn;
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}
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}
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void AQH_ObjectsHttpUrlHandler_SetListObjectsIntoBufferFn(AQH_HTTP_URLHANDLER *uh,
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AQH_OBJECTSHTTPURLHANDLER_LISTOBJECTSINTOBUFFER_FN fn)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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if (xuh) {
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xuh->listObjectsIntoBufferFn=fn;
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}
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}
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int _handleUrl(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq)
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{
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if (GWEN_INHERIT_ISOFTYPE(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh)) {
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const char *protocol;
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const char *cmd;
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GWEN_MSG *msgOut;
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AQH_HttpService_SetupModuleAndPerms(AQH_HttpUrlHandler_GetHttpService(uh), rq, "aqhome");
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protocol=AQH_HttpRequest_GetProtocol(rq);
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AQH_HttpRequest_SetupUrlPathMembers(rq);
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if (AQH_HttpRequest_GetUrlPathMembers(rq)==NULL) {
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msgOut=AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 500, "Internal Error", protocol, NULL);
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AQH_HttpRequest_SetResponseMsg(rq, msgOut);
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return 0;
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}
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cmd=AQH_HttpRequest_GetCommand(rq);
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if (cmd && *cmd) {
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if (strcasecmp(cmd, "GET")==0)
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msgOut=_handleGet(uh, rq);
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else if (strcasecmp(cmd, "POST")==0)
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msgOut=_handlePost(uh, rq);
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else {
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msgOut=AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 405, "Method not allowed", protocol, NULL);
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}
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AQH_HttpRequest_SetResponseMsg(rq, msgOut);
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return 0;
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}
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else {
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DBG_ERROR(AQH_LOGDOMAIN, "No command in request");
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return GWEN_ERROR_INVALID;
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}
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}
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else {
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DBG_ERROR(NULL, "Not an AQH_URLHANDLER_OBJECTS object");
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return GWEN_ERROR_INTERNAL;
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}
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}
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GWEN_MSG *_handleGet(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq)
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{
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GWEN_BUFFER *pageBuf;
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int rv;
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GWEN_MSG *msgOut=NULL;
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const char *protocol;
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const GWEN_STRINGLIST *sl;
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const char *s;
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protocol=AQH_HttpRequest_GetProtocol(rq);
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pageBuf=GWEN_Buffer_new(0, 256, 0, 1);
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/* header */
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rv=AQH_HttpUrlHandler_AddContentHeaders(uh, AQH_HTTP_CONTENT_MODE_DESKTOP, pageBuf);
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if (rv<0) {
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DBG_ERROR(AQH_LOGDOMAIN, "Error adding headers");
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GWEN_Buffer_free(pageBuf);
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return AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 500, "Internal Error", protocol, NULL);
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}
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/* middle part (header - middle - footer) */
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sl=AQH_HttpRequest_GetUrlPathMembers(rq);
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s=GWEN_StringList_StringAt(sl, 1);
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if (!(s && *s))
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s="list";
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if (strcasecmp(s, "list")==0)
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_handleGetList(uh, rq, pageBuf);
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else if (strcasecmp(s, "add")==0)
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_handleGetAdd(uh, rq, pageBuf);
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else if (strcasecmp(s, "edit")==0)
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_handleGetEdit(uh, rq, GWEN_StringList_StringAsIntAt(sl, 2, 0), pageBuf);
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else {
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DBG_ERROR(NULL, "Invalid url (2nd member is [%s])", s);
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GWEN_Buffer_free(pageBuf);
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return AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 404, "Not found", protocol, NULL);
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}
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/* footer */
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rv=AQH_HttpUrlHandler_AddContentFooters(uh, AQH_HTTP_CONTENT_MODE_DESKTOP, pageBuf);
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if (rv<0) {
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DBG_ERROR(AQH_LOGDOMAIN, "Error adding footers");
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GWEN_Buffer_free(pageBuf);
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return AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 500, "Internal Error", protocol, NULL);
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}
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msgOut=AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 200, "OK", protocol, GWEN_Buffer_GetStart(pageBuf));
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GWEN_Buffer_free(pageBuf);
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return msgOut;
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}
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GWEN_MSG *_handlePost(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq)
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{
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GWEN_DB_NODE *db;
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const GWEN_STRINGLIST *sl;
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const char *protocol;
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const char *s;
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DBG_ERROR(NULL, "POST:");
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db=AQH_HttpRequest_GetDbPostBody(rq);
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GWEN_DB_Dump(db, 2);
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protocol=AQH_HttpRequest_GetProtocol(rq);
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sl=AQH_HttpRequest_GetUrlPathMembers(rq);
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s=GWEN_StringList_StringAt(sl, 1);
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if (s && *s) {
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if (strcasecmp(s, "add")==0)
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return _handlePostAdd(uh, rq);
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else if (strcasecmp(s, "edit")==0)
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return _handlePostEdit(uh, rq, GWEN_StringList_StringAsIntAt(sl, 2, 0));
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else {
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DBG_ERROR(NULL, "Invalid url (2nd member is [%s])", s);
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return AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 404, "Not found", protocol, NULL);
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}
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}
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else {
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DBG_ERROR(NULL, "Invalid url (2nd member missing)");
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return AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 404, "Not found", protocol, NULL);
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}
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}
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void _handleGetList(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_BUFFER *pageBuf)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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uint32_t perms;
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DBG_ERROR(NULL, "LIST");
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perms=AQH_HttpRequest_GetModulePerms(rq);
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if (perms & xuh->neededPermsList) {
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_listObjectsIntoBuffer(uh, pageBuf);
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}
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else {
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GWEN_Buffer_AppendArgs(pageBuf, "<p>%s</p>", I18N("No permissions to see list of objects."));
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}
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}
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void _handleGetAdd(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_BUFFER *pageBuf)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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uint32_t perms;
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DBG_ERROR(NULL, "ADD");
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perms=AQH_HttpRequest_GetModulePerms(rq);
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if (perms & xuh->neededPermsAdd) {
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_writeAddPage(uh, rq, NULL, pageBuf);
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}
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else {
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DBG_INFO(NULL, "No permissions to add.");
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GWEN_Buffer_AppendArgs(pageBuf, "<p><font color=\"red\">%s</font></p>", I18N("No permissions to add an object."));
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}
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}
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void _handleGetEdit(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, int id, GWEN_BUFFER *pageBuf)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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uint32_t perms;
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DBG_ERROR(NULL, "EDIT");
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perms=AQH_HttpRequest_GetModulePerms(rq);
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if (perms & xuh->neededPermsEdit) {
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if (id>0) {
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GWEN_DB_NODE *db;
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db=_findObjectByIdAndReturnAsDb(uh, id);
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if (db) {
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_writeEditPage(uh, rq, db, pageBuf);
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GWEN_DB_Group_free(db);
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}
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else {
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DBG_ERROR(NULL, "Object %d not found", id);
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GWEN_Buffer_AppendArgs(pageBuf, "<p><font color=\"red\">%s</font></p>", I18N("Object not found."));
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}
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}
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else {
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DBG_ERROR(NULL, "Missing object id");
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GWEN_Buffer_AppendArgs(pageBuf, "<p><font color=\"red\">%s</font></p>", I18N("Missing or invalid object id."));
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}
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}
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else {
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DBG_INFO(NULL, "No permissions to edit.");
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GWEN_Buffer_AppendArgs(pageBuf, "<p>%s</p>", I18N("No permissions to edit."));
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}
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}
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GWEN_MSG *_handlePostAdd(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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uint32_t perms;
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perms=AQH_HttpRequest_GetModulePerms(rq);
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if (perms & xuh->neededPermsAdd)
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return _addOrEditAndCreateResponse(uh, rq, 0, _writeAddPage);
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else {
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DBG_INFO(NULL, "No perms to add object");
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return AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 403, "Forbidden",
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AQH_HttpRequest_GetProtocol(rq), NULL);
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}
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}
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GWEN_MSG *_handlePostEdit(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, int id)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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uint32_t perms;
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perms=AQH_HttpRequest_GetModulePerms(rq);
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if (perms & xuh->neededPermsEdit) {
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return _addOrEditAndCreateResponse(uh, rq, id, _writeEditPage);
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}
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else {
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DBG_INFO(NULL, "No perms to edit");
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return AQH_HttpService_CreateResponseMsg(AQH_HttpUrlHandler_GetHttpService(uh), 403, "Forbidden",
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AQH_HttpRequest_GetProtocol(rq), NULL);
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}
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}
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GWEN_MSG *_addOrEditAndCreateResponse(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, int id, AQH_HTTP_URLHANDLER_WRITEPAGE_CB cb)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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AQH_SERVICE *sv;
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GWEN_DB_NODE *db;
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int rv;
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sv=AQH_HttpUrlHandler_GetHttpService(uh);
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db=AQH_HttpRequest_GetDbPostBody(rq);
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rv=_addOrEditObject(uh, db, id);
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if (rv<0)
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return AQH_BaseHttpUrlHandler_CreateResponseForErrorCode(uh, rq, rv, cb, db);
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return AQH_HttpService_CreateRedirectingResponseMsg(sv, AQH_HttpRequest_GetProtocol(rq), xuh->urlForObjectList);
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||||
}
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||||
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||||
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||||
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int _addOrEditObject(AQH_HTTP_URLHANDLER *uh, GWEN_DB_NODE *db, int id)
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{
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AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
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if (xuh->addOrEditObjectFn)
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return xuh->addOrEditObjectFn(uh, db, id);
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return GWEN_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
GWEN_DB_NODE *_findObjectByIdAndReturnAsDb(AQH_HTTP_URLHANDLER *uh, int id)
|
||||
{
|
||||
AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
|
||||
|
||||
if (xuh->findObjectByIdAndReturnAsDbFn)
|
||||
return xuh->findObjectByIdAndReturnAsDbFn(uh, id);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
||||
|
||||
int _writeAddPage(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_DB_NODE *dbValues, GWEN_BUFFER *pageBuf)
|
||||
{
|
||||
AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
|
||||
|
||||
if (xuh->writeAddPageFn)
|
||||
return xuh->writeAddPageFn(uh, rq, dbValues, pageBuf);
|
||||
return GWEN_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
int _writeEditPage(AQH_HTTP_URLHANDLER *uh, AQH_HTTP_REQUEST *rq, GWEN_DB_NODE *dbValues, GWEN_BUFFER *pageBuf)
|
||||
{
|
||||
AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
|
||||
|
||||
if (xuh->writeEditPageFn)
|
||||
return xuh->writeEditPageFn(uh, rq, dbValues, pageBuf);
|
||||
return GWEN_ERROR_NOT_IMPLEMENTED;
|
||||
}
|
||||
|
||||
|
||||
|
||||
void _listObjectsIntoBuffer(AQH_HTTP_URLHANDLER *uh, GWEN_BUFFER *pageBuf)
|
||||
{
|
||||
AQH_URLHANDLER_OBJECTS *xuh=GWEN_INHERIT_GETDATA(AQH_HTTP_URLHANDLER, AQH_URLHANDLER_OBJECTS, uh);
|
||||
|
||||
if (xuh->listObjectsIntoBufferFn)
|
||||
xuh->listObjectsIntoBufferFn(uh, pageBuf);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user