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/*
* Copyright (C) 2016 "IoT.bzh"
* Author Fulup Ar Foll <fulup@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, something express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Reference:
* Json load using json_unpack https://jansson.readthedocs.io/en/2.9/apiref.html#parsing-and-validating-values
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <sys/time.h>
#include "filescan-utils.h"
#include "ctl-config.h"
// Load control config file
PUBLIC int CtlConfigMagicNew() {
static int InitRandomDone=0;
if (!InitRandomDone) {
struct timeval tv;
InitRandomDone=1;
gettimeofday(&tv,NULL);
srand ((int)tv.tv_usec);
}
return ((long)rand());
}
PUBLIC json_object* CtlConfigScan(const char *dirList, const char *prefix) {
char controlFile [CONTROL_MAXPATH_LEN];
strncpy(controlFile, prefix, CONTROL_MAXPATH_LEN);
strncat(controlFile, GetBinderName(), CONTROL_MAXPATH_LEN);
// search for default dispatch config file
json_object* responseJ = ScanForConfig(dirList, CTL_SCAN_RECURSIVE, controlFile, ".json");
return responseJ;
}
PUBLIC char* CtlConfigSearch(AFB_ApiT apiHandle, const char *dirList, const char *prefix) {
int index, err;
// search for default dispatch config file
json_object* responseJ = CtlConfigScan (dirList, prefix);
// We load 1st file others are just warnings
for (index = 0; index < json_object_array_length(responseJ); index++) {
json_object *entryJ = json_object_array_get_idx(responseJ, index);
char *filename;
char*fullpath;
err = wrap_json_unpack(entryJ, "{s:s, s:s !}", "fullpath", &fullpath, "filename", &filename);
if (err) {
AFB_ApiError(apiHandle, "CTL-INIT HOOPs invalid JSON entry= %s", json_object_get_string(entryJ));
return NULL;
}
if (index == 0) {
char filepath[CONTROL_MAXPATH_LEN];
strncpy(filepath, fullpath, sizeof (filepath));
strncat(filepath, "/", sizeof (filepath));
strncat(filepath, filename, sizeof (filepath));
return (strdup(filepath));
}
}
// no config found
return NULL;
}
PUBLIC int CtlConfigExec(AFB_ApiT apiHandle, CtlConfigT *ctlConfig) {
// best effort to initialise everything before starting
if (ctlConfig->requireJ) {
void DispatchRequireOneApi(json_object * bindindJ) {
const char* requireBinding = json_object_get_string(bindindJ);
int err = AFB_RequireApi(apiHandle, requireBinding, 1);
if (err) {
AFB_ApiWarning(apiHandle, "CTL-LOAD-CONFIG:REQUIRE Fail to get=%s", requireBinding);
}
}
if (json_object_get_type(ctlConfig->requireJ) == json_type_array) {
for (int idx = 0; idx < json_object_array_length(ctlConfig->requireJ); idx++) {
DispatchRequireOneApi(json_object_array_get_idx(ctlConfig->requireJ, idx));
}
} else {
DispatchRequireOneApi(ctlConfig->requireJ);
}
}
#ifdef CONTROL_SUPPORT_LUA
int err= LuaConfigExec(apiHandle, ctlConfig->api);
if (err) goto OnErrorExit;
#endif
// Loop on every section and process config
int errcount=0;
for (int idx = 0; ctlConfig->sections[idx].key != NULL; idx++) {
if (!ctlConfig->sections[idx].actions) {
AFB_ApiNotice(apiHandle, "CtlConfigLoad: notice empty section '%s'", ctlConfig->sections[idx].key);
continue;
}
errcount += ctlConfig->sections[idx].loadCB(apiHandle, &ctlConfig->sections[idx], NULL);
}
return errcount;
OnErrorExit:
return 1;
}
PUBLIC CtlConfigT *CtlLoadMetaData(AFB_ApiT apiHandle, const char* filepath) {
json_object *ctlConfigJ;
CtlConfigT *ctlHandle=NULL;
int err;
// Load JSON file
ctlConfigJ = json_object_from_file(filepath);
if (!ctlConfigJ) {
AFB_ApiError(apiHandle, "CTL-LOAD-CONFIG Not invalid JSON %s ", filepath);
goto OnErrorExit;
}
AFB_ApiInfo(apiHandle, "CTL-LOAD-CONFIG: loading config filepath=%s", filepath);
json_object *metadataJ;
int done = json_object_object_get_ex(ctlConfigJ, "metadata", &metadataJ);
if (done) {
ctlHandle = calloc(1, sizeof (CtlConfigT));
err = wrap_json_unpack(metadataJ, "{ss,ss,ss,s?s,s?o !}", "uid", &ctlHandle->uid, "version", &ctlHandle->version
, "api", &ctlHandle->api, "info", &ctlHandle->info, "require", &ctlHandle->requireJ);
if (err) {
AFB_ApiError(apiHandle, "CTL-LOAD-CONFIG:METADATA Missing something uid|api|version|[info]|[require] in:\n-- %s", json_object_get_string(metadataJ));
goto OnErrorExit;
}
}
ctlHandle->configJ = ctlConfigJ;
return ctlHandle;
OnErrorExit:
if (ctlHandle) free(ctlHandle);
return NULL;
}
PUBLIC int CtlLoadSections(AFB_ApiT apiHandle, CtlConfigT *ctlHandle, CtlSectionT *sections) {
int err;
#ifdef CONTROL_SUPPORT_LUA
err= LuaConfigLoad(apiHandle);
if (err) goto OnErrorExit;
#endif
err = 0;
ctlHandle->sections = sections;
for (int idx = 0; sections[idx].key != NULL; idx++) {
json_object * sectionJ;
int done = json_object_object_get_ex(ctlHandle->configJ, sections[idx].key, §ionJ);
if (done) {
err += sections[idx].loadCB(apiHandle, §ions[idx], sectionJ);
}
}
if (err) goto OnErrorExit;
return 0;
OnErrorExit:
return 1;
}
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