diff options
Diffstat (limited to 'signal-composer-binding/ctl-dispatch.c')
| -rw-r--r-- | signal-composer-binding/ctl-dispatch.c | 705 |
1 files changed, 705 insertions, 0 deletions
diff --git a/signal-composer-binding/ctl-dispatch.c b/signal-composer-binding/ctl-dispatch.c new file mode 100644 index 0000000..b84c86e --- /dev/null +++ b/signal-composer-binding/ctl-dispatch.c @@ -0,0 +1,705 @@ +/* + * 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 <dlfcn.h> +#include <sys/prctl.h> +#include <filescan-utils.h> +#include <wrap-json.h> + +#include "ctl-lua.h" +#include "signal-composer-binding.hpp" + +typedef void*(*DispatchPluginInstallCbT)(const char* label, const char*version, const char*info); + +static afb_req NULL_AFBREQ = {}; + +typedef struct { + const char* id; + const char* source; + const char* class; + DispatchActionT* onReceived; +} DispatchSignalT; + +typedef struct { + const char* label; + const char* info; + const char* ssource; + const char* sclass; + DispatchActionT* actions; +} DispatchHandleT; + +typedef struct { + const char *label; + const char *info; + void *context; + char *sharelib; + void *dlHandle; + luaL_Reg *l2cFunc; + int l2cCount; +} DispatchPluginT; + +typedef struct { + const char* label; + const char *info; + const char *version; + DispatchPluginT *plugin; + DispatchHandleT **sources; + DispatchHandleT **signals; +} DispatchConfigT; + +// global config handle +static DispatchConfigT *configHandle = NULL; + +static int DispatchSignalToIndex(DispatchHandleT **signals, const char* controlLabel) { + + for (int idx = 0; signals[idx]; idx++) { + if (!strcasecmp(controlLabel, signals[idx]->label)) return idx; + } + return -1; +} + +static int DispatchOneSignal(DispatchSourceT source, DispatchHandleT **signals, const char* controlLabel, json_object *queryJ, afb_req request) { + int err; + + if (!configHandle) { + AFB_ERROR("DISPATCH-CTL-API: (Hoops/Bug!!!) No Config Loaded"); + return -1; + } + + if (!configHandle->signals) { + AFB_ERROR("DISPATCH-CTL-API: No Signal Action in Json config label=%s version=%s", configHandle->label, configHandle->version); + return -1; + } + + int index = DispatchSignalToIndex(signals, controlLabel); + if (index < 0 || !signals[index]->actions) { + AFB_ERROR("DISPATCH-CTL-API:NotFound/Error label=%s in Json Signal Config File", controlLabel); + return -1; + } + + // Fulup (Bug/Feature) in current version is unique to every onload profile + if (configHandle->plugin && configHandle->plugin->l2cCount) { + LuaL2cNewLib (configHandle->plugin->label, configHandle->plugin->l2cFunc, configHandle->plugin->l2cCount); + } + + // loop on action for this control + DispatchActionT *actions = signals[index]->actions; + for (int idx = 0; actions[idx].label; idx++) { + + switch (actions[idx].mode) { + case CTL_MODE_API: + { + json_object *returnJ; + + // if query is empty increment usage count and pass args + if (!queryJ || json_object_get_type(queryJ) != json_type_object) { + json_object_get(actions[idx].argsJ); + queryJ= actions[idx].argsJ; + } else if (actions[idx].argsJ) { + + // Merge queryJ and argsJ before sending request + if (json_object_get_type(actions[idx].argsJ) == json_type_object) { + json_object_object_foreach(actions[idx].argsJ, key, val) { + json_object_object_add(queryJ, key, val); + } + } else { + json_object_object_add(queryJ, "args", actions[idx].argsJ); + } + } + + int err = afb_service_call_sync(actions[idx].api, actions[idx].call, queryJ, &returnJ); + if (err) { + static const char*format = "DispatchOneSignal(Api) api=%s verb=%s args=%s"; + if (afb_req_is_valid(request))afb_req_fail_f(request, "DISPATCH-CTL-MODE:API", format, actions[idx].label, actions[idx].api, actions[idx].call); + else AFB_ERROR(format, actions[idx].api, actions[idx].call, actions[idx].label); + return -1; + } + break; + } + +#ifdef CONTROL_SUPPORT_LUA + case CTL_MODE_LUA: + err = LuaCallFunc(source, &actions[idx], queryJ); + if (err) { + static const char*format = "DispatchOneSignal(Lua) label=%s func=%s args=%s"; + if (afb_req_is_valid(request)) afb_req_fail_f(request, "DISPATCH-CTL-MODE:Lua", format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ)); + else AFB_ERROR(format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ)); + return -1; + } + break; +#endif + + case CTL_MODE_CB: + err = (*actions[idx].actionCB) (source, actions[idx].label, actions[idx].argsJ, queryJ, configHandle->plugin->context); + if (err) { + static const char*format = "DispatchOneSignal(Callback) label%s func=%s args=%s"; + if (afb_req_is_valid(request)) afb_req_fail_f(request, "DISPATCH-CTL-MODE:Cb", format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ)); + else AFB_ERROR(format, actions[idx].label, actions[idx].call, json_object_get_string(actions[idx].argsJ)); + return -1; + } + break; + + default: + { + static const char*format = "DispatchOneSignal(unknown) mode control=%s action=%s"; + AFB_ERROR(format, signals[index]->label); + if (afb_req_is_valid(request))afb_req_fail_f(request, "DISPATCH-CTL-MODE:Unknown", format, signals[index]->label); + } + } + } + + // everything when fine + if (afb_req_is_valid(request)) afb_req_success(request, NULL, signals[index]->label); + return 0; +} + +// Event name is mapped on control label and executed as a standard control +/* +void DispatchOneEvent(const char *evtLabel, json_object *eventJ) { + DispatchHandleT **events = configHandle->events; + + (void) DispatchOneSignal(CTL_SOURCE_EVENT, events, evtLabel, eventJ, NULL_AFBREQ); +} +*/ +// Event name is mapped on control label and executed as a standard control + +int DispatchSources() { + if (!configHandle) return 1; + + int err = 0; + DispatchHandleT **sources = configHandle->sources; + ssize_t i = 0, nSources = sizeof(*sources) / sizeof(DispatchHandleT); + + while(i < nSources) { + const char* sourceLabel = sources[i++]->label; + err = DispatchOneSignal(CTL_SOURCE_ONLOAD, sources, sourceLabel, NULL, NULL_AFBREQ); + } + + return err; +} + +void ctlapi_dispatch(afb_req request) { + DispatchHandleT **signals = configHandle->signals; + json_object *queryJ, *argsJ=NULL; + const char *target; + DispatchSourceT source= CTL_SOURCE_UNKNOWN; + + queryJ = afb_req_json(request); + int err = wrap_json_unpack(queryJ, "{s:s, s?i s?o !}", "target", &target, "source", &source, "args", &argsJ); + if (err) { + afb_req_fail_f(request, "CTL-DISPTACH-INVALID", "missing target or args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + + (void) DispatchOneSignal(source, signals, target, argsJ, request); +} + +// Wrapper to Lua2c plugin command add context dans delegate to LuaWrapper +int DispatchOneL2c(lua_State* luaState, char *funcname, Lua2cFunctionT callback) { +#ifndef CONTROL_SUPPORT_LUA + AFB_ERROR("DISPATCH-ONE-L2C: LUA support not selected (cf:CONTROL_SUPPORT_LUA) in config.cmake"); + return 1; +#else + int err=Lua2cWrapper(luaState, funcname, callback, configHandle->plugin->context); + return err; +#endif +} + + +// List Avaliable Configuration Files + +void ctlapi_config(struct afb_req request) { + json_object*tmpJ; + char *dirList; + // Compile some default directories to browse + char defaultConfPath[CONTROL_MAXPATH_LEN]; + strncpy(defaultConfPath, GetBindingDirPath(), sizeof(GetBindingDirPath())); + strncat(defaultConfPath, "/etc:", sizeof(defaultConfPath) - strlen(defaultConfPath) - 1); + strncat(defaultConfPath, GetBindingDirPath(), sizeof(defaultConfPath) - strlen(defaultConfPath) - 1); + strncat(defaultConfPath, "/data", sizeof(defaultConfPath) - strlen(defaultConfPath) - 1); + + + json_object* queryJ = afb_req_json(request); + if (queryJ && json_object_object_get_ex(queryJ, "cfgpath", &tmpJ)) { + dirList = strdup(json_object_get_string(tmpJ)); + } else { + + dirList = getenv("CONTROL_CONFIG_PATH"); + if (!dirList) dirList = defaultConfPath; + AFB_NOTICE("CONFIG-MISSING: use default CONTROL_CONFIG_PATH=%s", defaultConfPath); + } + + // get list of config file + struct json_object *responseJ = ScanForConfig(dirList, CTL_SCAN_RECURSIVE, "onload", "json"); + + if (json_object_array_length(responseJ) == 0) { + afb_req_fail(request, "CONFIGPATH:EMPTY", "No Config Found in CONTROL_CONFIG_PATH"); + } else { + afb_req_success(request, responseJ, NULL); + } + + return; +} + +// unpack individual action object + +static int DispatchLoadOneAction(DispatchConfigT *controlConfig, json_object *actionJ, DispatchActionT *action) { + char *api = NULL, *verb = NULL, *callback = NULL, *lua = NULL, *function = NULL; + int err, modeCount = 0; + + err = wrap_json_unpack(actionJ, "{s?s,s?s,s?s,s?s,s?s,s?s,s?s,s?o !}" + , "label", &action->label + , "info", &action->info + , "function", &function + , "callback", &callback + , "lua", &lua + , "api", &api, "verb", &verb + , "args", &action->argsJ); + if (err) { + AFB_ERROR("DISPATCH-LOAD-ACTION Missing something label|info|callback|lua|(api+verb)|args in %s", json_object_get_string(actionJ)); + return -1; + } + + // Generic way to specify a C or LUA actions + if(function) { + if(strcasestr(function, "lua")) { + action->mode = CTL_MODE_LUA; + action->call = function; + modeCount++; + } + else if(controlConfig->plugin) { + action->mode = CTL_MODE_CB; + action->call = callback; + modeCount++; + + action->actionCB = dlsym(controlConfig->plugin->dlHandle, callback); + if (!action->actionCB) { + AFB_ERROR("DISPATCH-LOAD-ACTION fail to find calbback=%s in %s", callback, controlConfig->plugin->sharelib); + return -1; + } + } + // If label not already set then use function name + if(! &action->label) action->label = function; + } + + if (lua) { + action->mode = CTL_MODE_LUA; + action->call = lua; + modeCount++; + // If label not already set then use function name + if(! &action->label) action->label = lua; + } + + if (api && verb) { + action->mode = CTL_MODE_API; + action->api = api; + action->call = verb; + modeCount++; + char* apiVerb = strdup(api); + apiVerb = strncat(apiVerb, "/", sizeof(*apiVerb) - strlen(apiVerb) - 1); + apiVerb = strncat(apiVerb, verb, sizeof(*apiVerb) - strlen(apiVerb) - 1); + // If label not already set then use function name + if(! &action->label) action->label = apiVerb; + free(apiVerb); + } + + if (callback && controlConfig->plugin) { + action->mode = CTL_MODE_CB; + action->call = callback; + modeCount++; + + action->actionCB = dlsym(controlConfig->plugin->dlHandle, callback); + if (!action->actionCB) { + AFB_ERROR("DISPATCH-LOAD-ACTION fail to find calbback=%s in %s", callback, controlConfig->plugin->sharelib); + return -1; + } + } + + // make sure at least one mode is selected + if (modeCount == 0) { + AFB_ERROR("DISPATCH-LOAD-ACTION No Action Selected lua|callback|(api+verb) in %s", json_object_get_string(actionJ)); + return -1; + } + + if (modeCount > 1) { + AFB_ERROR("DISPATCH-LOAD-ACTION:Too Many arguments lua|callback|(api+verb) in %s", json_object_get_string(actionJ)); + return -1; + } + return 0; +}; + +static DispatchActionT *DispatchLoadActions(DispatchConfigT *controlConfig, json_object *actionsJ) { + int err; + DispatchActionT *actions; + + // action array is close with a nullvalue; + if (json_object_get_type(actionsJ) == json_type_array) { + int count = json_object_array_length(actionsJ); + actions = calloc(count + 1, sizeof (DispatchActionT)); + + for (int idx = 0; idx < count; idx++) { + json_object *actionJ = json_object_array_get_idx(actionsJ, idx); + err = DispatchLoadOneAction(controlConfig, actionJ, &actions[idx]); + if (err) return NULL; + } + + } else { + actions = calloc(2, sizeof (DispatchActionT)); + err = DispatchLoadOneAction(controlConfig, actionsJ, &actions[0]); + if (err) return NULL; + } + + return actions; +} + +static void DispatchLoadPlugin(DispatchConfigT *controlConfig, json_object* sourcesJ, json_object* pluginJ) +{ + int err = 0; + json_object *lua2csJ = NULL; + DispatchPluginT *dPlugin= calloc(1, sizeof(DispatchPluginT)); + controlConfig->plugin = dPlugin; + const char*ldSearchPath=NULL; + + err = wrap_json_unpack(pluginJ, "{ss,s?s,s?s,ss,s?o!}", + "label", &dPlugin->label, "info", &dPlugin->info, "ldpath", &ldSearchPath, "sharelib", &dPlugin->sharelib, "lua2c", &lua2csJ); + if (err) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:ONLOAD Plugin missing label|[info]|sharelib|[lua2c] in %s", json_object_get_string(sourcesJ)); + return; + } + + // if search path not in Json config file, then try default + if (!ldSearchPath) ldSearchPath= strncat(GetBindingDirPath(), "/data", sizeof(GetBindingDirPath()) - strlen(GetBindingDirPath()) - 1); + + // search for default policy config file + json_object *pluginPathJ = ScanForConfig(ldSearchPath, CTL_SCAN_RECURSIVE, dPlugin->sharelib, NULL); + if (!pluginPathJ || json_object_array_length(pluginPathJ) == 0) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:PLUGIN Missing plugin=%s in path=%s", dPlugin->sharelib, ldSearchPath); + return; + } + + char *filename; + char*fullpath; + err = wrap_json_unpack(json_object_array_get_idx(pluginPathJ, 0), "{s:s, s:s !}", "fullpath", &fullpath, "filename", &filename); + if (err) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:PLUGIN HOOPs invalid plugin file path = %s", json_object_get_string(pluginPathJ)); + return; + } + + if (json_object_array_length(pluginPathJ) > 1) { + AFB_WARNING("DISPATCH-LOAD-CONFIG:PLUGIN plugin multiple instances in searchpath will use %s/%s", fullpath, filename); + } + + char pluginpath[CONTROL_MAXPATH_LEN]; + strncpy(pluginpath, fullpath, sizeof (pluginpath)); + strncat(pluginpath, "/", sizeof (pluginpath)-strlen(pluginpath)-1); + strncat(pluginpath, filename, sizeof (pluginpath)-strlen(pluginpath)-1); + dPlugin->dlHandle = dlopen(pluginpath, RTLD_NOW); + if (!dPlugin->dlHandle) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:PLUGIN Fail to load pluginpath=%s err= %s", pluginpath, dlerror()); + return; + } + + CtlPluginMagicT *ctlPluginMagic = (CtlPluginMagicT*) dlsym(dPlugin->dlHandle, "CtlPluginMagic"); + if (!ctlPluginMagic || ctlPluginMagic->magic != CTL_PLUGIN_MAGIC) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:Plugin symbol'CtlPluginMagic' missing or != CTL_PLUGIN_MAGIC plugin=%s", pluginpath); + return; + } else { + AFB_NOTICE("DISPATCH-LOAD-CONFIG:Plugin %s successfully registered", ctlPluginMagic->label); + } + + // Jose hack to make verbosity visible from sharelib + struct afb_binding_data_v2 *afbHidenData = dlsym(dPlugin->dlHandle, "afbBindingV2data"); + if (afbHidenData) *afbHidenData = afbBindingV2data; + + // Push lua2cWrapper @ into plugin + Lua2cWrapperT *lua2cInPlug = dlsym(dPlugin->dlHandle, "Lua2cWrap"); +#ifndef CONTROL_SUPPORT_LUA + if (lua2cInPlug) *lua2cInPlug = NULL; +#else + // Lua2cWrapper is part of binder and not expose to dynamic link + if (lua2cInPlug) *lua2cInPlug = DispatchOneL2c; + + { + int Lua2cAddOne(luaL_Reg *l2cFunc, const char* l2cName, int index) { + char funcName[CONTROL_MAXPATH_LEN]; + strncpy(funcName, "lua2c_", sizeof(funcName)); + strncat(funcName, l2cName, sizeof(funcName)-strlen(funcName)-1); + + Lua2cFunctionT l2cFunction= (Lua2cFunctionT)dlsym(dPlugin->dlHandle, funcName); + if (!l2cFunction) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:Plugin symbol'%s' missing err=%s", funcName, dlerror()); + return 1; + } + l2cFunc[index].func=(void*)l2cFunction; + l2cFunc[index].name=strdup(l2cName); + + return 0; + } + + int errCount = 0; + luaL_Reg *l2cFunc=NULL; + int count=0; + + // look on l2c command and push them to LUA + if (json_object_get_type(lua2csJ) == json_type_array) { + int length = json_object_array_length(lua2csJ); + l2cFunc = calloc(length + 1, sizeof (luaL_Reg)); + for (count=0; count < length; count++) { + int err; + const char *l2cName = json_object_get_string(json_object_array_get_idx(lua2csJ, count)); + err = Lua2cAddOne(l2cFunc, l2cName, count); + if (err) errCount++; + } + } else { + l2cFunc = calloc(2, sizeof (luaL_Reg)); + const char *l2cName = json_object_get_string(lua2csJ); + errCount = Lua2cAddOne(l2cFunc, l2cName, 0); + count=1; + } + if (errCount) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:Plugin %d symbols not found in plugin='%s'", errCount, pluginpath); + return; + } else { + dPlugin->l2cFunc= l2cFunc; + dPlugin->l2cCount= count; + } + } +#endif + DispatchPluginInstallCbT ctlPluginOnload = dlsym(dPlugin->dlHandle, "CtlPluginOnload"); + if (ctlPluginOnload) { + dPlugin->context = (*ctlPluginOnload) (controlConfig->label, controlConfig->version, controlConfig->info); + } +} + +static DispatchHandleT *DispatchLoadSignal(DispatchConfigT *controlConfig, json_object *controlJ) { + json_object *actionsJ, *permissionsJ; + int err; + + DispatchHandleT *dispatchHandle = calloc(1, sizeof (DispatchHandleT)); + err = wrap_json_unpack(controlJ, "{ss,s?s,ss,ss,s?o,so !}" + , "id", &dispatchHandle->label + , "info", &dispatchHandle->info + , "source", &dispatchHandle->ssource + , "class", &dispatchHandle->sclass + , "permissions", &permissionsJ + , "onReceived", &actionsJ); + if (err) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:CONTROL Missing something label|[info]|actions in %s", json_object_get_string(controlJ)); + return NULL; + } + + dispatchHandle->actions = DispatchLoadActions(controlConfig, actionsJ); + if (!dispatchHandle->actions) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:CONTROL Error when parsing actions %s", dispatchHandle->label); + return NULL; + } + return dispatchHandle; +} + +static DispatchHandleT *DispatchLoadSource(DispatchConfigT *controlConfig, json_object *sourcesJ) { + json_object *actionsJ = NULL, *pluginJ = NULL; + int err; + + DispatchHandleT *dispatchSources = calloc(1, sizeof (DispatchHandleT)); + err = wrap_json_unpack(sourcesJ, "{ss,s?s,s?o,s?o,s?o !}", + "api", &dispatchSources->label, "info", &dispatchSources->info, "plugin", &pluginJ, "actions", &actionsJ); + if (err) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:ONLOAD Missing something label|[info]|[plugin]|[actions] in %s", json_object_get_string(sourcesJ)); + return NULL; + } + + // best effort to initialise everything before starting + err = afb_daemon_require_api(dispatchSources->label, 1); + if (err) { + AFB_WARNING("DISPATCH-LOAD-CONFIG:REQUIRE Fail to get=%s", dispatchSources->label); + } + + if (pluginJ) { + DispatchLoadPlugin(controlConfig, sourcesJ, pluginJ); + } + + dispatchSources->actions = DispatchLoadActions(controlConfig, actionsJ); + if (!dispatchSources->actions) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:ONLOAD Error when parsing actions %s", dispatchSources->label); + return NULL; + } + return dispatchSources; +} + +static DispatchConfigT *DispatchLoadConfig(const char* filepath) { + json_object *controlConfigJ, *ignoreJ; + int err; + + // Load JSON file + controlConfigJ = json_object_from_file(filepath); + if (!controlConfigJ) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:JsonLoad invalid JSON %s ", filepath); + return NULL; + } + + AFB_INFO("DISPATCH-LOAD-CONFIG: loading config filepath=%s", filepath); + + json_object *metadataJ = NULL, *sourcesJ = NULL, *signalsJ = NULL; + err = wrap_json_unpack(controlConfigJ, "{s?s,s?o,s?o,s?o !}", "$schema", &ignoreJ, "metadata", &metadataJ, "sources", &sourcesJ, "signals", &signalsJ); + if (err) { + AFB_ERROR("DISPATCH-LOAD-CONFIG Missing something metadata|[sources]|[signals] in %s", json_object_get_string(controlConfigJ)); + return NULL; + } + + DispatchConfigT *controlConfig = calloc(1, sizeof (DispatchConfigT)); + if (metadataJ) { + const char*ctlname=NULL; + err = wrap_json_unpack(metadataJ, "{ss,s?s,s?s,ss !}", "label", &controlConfig->label, "version", &controlConfig->version, "name", &ctlname, "info", &controlConfig->info); + if (err) { + AFB_ERROR("DISPATCH-LOAD-CONFIG:METADATA Missing something label|version|[label] in %s", json_object_get_string(metadataJ)); + return NULL; + } + + // if ctlname is provided change process name now + if (ctlname) { + err= prctl(PR_SET_NAME, ctlname,NULL,NULL,NULL); + if (err) AFB_WARNING("Fail to set Process Name to:%s",ctlname); + } + } + + if (sourcesJ) { + DispatchHandleT *dispatchHandle; + + if (json_object_get_type(sourcesJ) != json_type_array) { + controlConfig->sources = (DispatchHandleT**) calloc(2, sizeof (void*)); + dispatchHandle = DispatchLoadSource(controlConfig, sourcesJ); + controlConfig->sources[0] = dispatchHandle; + } else { + int length = json_object_array_length(sourcesJ); + controlConfig->sources = (DispatchHandleT**) calloc(length + 1, sizeof (void*)); + + for (int jdx = 0; jdx < length; jdx++) { + json_object *sourcesJ = json_object_array_get_idx(sourcesJ, jdx); + dispatchHandle = DispatchLoadSource(controlConfig, sourcesJ); + controlConfig->sources[jdx] = dispatchHandle; + } + } + } + + if (signalsJ) { + DispatchHandleT* dispatchHandle; + + if (json_object_get_type(signalsJ) != json_type_array) { + controlConfig->signals = (DispatchHandleT**) calloc(2, sizeof (void*)); + dispatchHandle = DispatchLoadSignal(controlConfig, signalsJ); + controlConfig->signals[0] = dispatchHandle; + } else { + int length = json_object_array_length(signalsJ); + controlConfig->signals = (DispatchHandleT**) calloc(length + 1, sizeof (void*)); + + for (int jdx = 0; jdx < length; jdx++) { + json_object *controlJ = json_object_array_get_idx(signalsJ, jdx); + dispatchHandle = DispatchLoadSignal(controlConfig, controlJ); + controlConfig->signals[jdx] = dispatchHandle; + } + } + } +/* + if (eventsJ) { + DispatchHandleT *dispatchHandle; + + if (json_object_get_type(eventsJ) != json_type_array) { + controlConfig->events = (DispatchHandleT**) calloc(2, sizeof (void*)); + dispatchHandle = DispatchLoadSignal(controlConfig, eventsJ); + controlConfig->events[0] = dispatchHandle; + } else { + int length = json_object_array_length(eventsJ); + controlConfig->events = (DispatchHandleT**) calloc(length + 1, sizeof (void*)); + + for (int jdx = 0; jdx < length; jdx++) { + json_object *eventJ = json_object_array_get_idx(eventsJ, jdx); + dispatchHandle = DispatchLoadSignal(controlConfig, eventJ); + controlConfig->events[jdx] = dispatchHandle; + } + } + } +*/ + return controlConfig; +} + + +// Load default config file at init + +int DispatchInit() { + int index, luaLoaded = 0; + char controlFile [CONTROL_MAXPATH_LEN]; + // Compile some default directories to browse + char defaultConfPath[CONTROL_MAXPATH_LEN]; + strncpy(defaultConfPath, GetBindingDirPath(), sizeof(GetBindingDirPath())); + strncat(defaultConfPath, "/etc:", sizeof(defaultConfPath) - strlen(defaultConfPath) - 1); + strncat(defaultConfPath, GetBindingDirPath(), sizeof(defaultConfPath) - strlen(defaultConfPath) - 1); + strncat(defaultConfPath, "/data", sizeof(defaultConfPath) - strlen(defaultConfPath) - 1); + + const char *dirList = getenv("CONTROL_CONFIG_PATH"); + if (!dirList) dirList = defaultConfPath; + + strncpy(controlFile, CONTROL_CONFIG_PRE "-", CONTROL_MAXPATH_LEN); + strncat(controlFile, GetBinderName(), CONTROL_MAXPATH_LEN-strlen(controlFile)-1); + + // search for default dispatch config file + json_object* responseJ = ScanForConfig(dirList, CTL_SCAN_RECURSIVE, controlFile, "json"); + + // 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; + int err = wrap_json_unpack(entryJ, "{s:s, s:s !}", "fullpath", &fullpath, "filename", &filename); + if (err) { + AFB_ERROR("DISPATCH-INIT HOOPs invalid JSON entry= %s", json_object_get_string(entryJ)); + return -1; + } + + if (index == 0) { + if (strcasestr(filename, controlFile)) { + char filepath[CONTROL_MAXPATH_LEN]; + strncpy(filepath, fullpath, sizeof (filepath)); + strncat(filepath, "/", sizeof (filepath)-strlen(filepath)-1); + strncat(filepath, filename, sizeof (filepath)-strlen(filepath)-1); + configHandle = DispatchLoadConfig(filepath); + if (!configHandle) { + AFB_ERROR("DISPATCH-INIT:ERROR Fail loading [%s]", filepath); + return -1; + } + luaLoaded = 1; + break; + } + } else { + AFB_WARNING("DISPATCH-INIT:WARNING Secondary Signal Config Ignored %s/%s", fullpath, filename); + } + } + + // no dispatch config found remove control API from binder + if (!luaLoaded) { + AFB_WARNING("DISPATCH-INIT:WARNING (setenv CONTROL_CONFIG_PATH) No Config '%s-*.json' in '%s'", controlFile, dirList); + } + + AFB_NOTICE("DISPATCH-INIT:SUCCES: Signal Dispatch Init"); + return 0; +} |