-/*
- * Copyright (C) 2015 "IoT.bzh"
+/*
+ * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
* Author "Fulup Ar Foll"
+ * Author José Bollo <jose.bollo@iot.bzh>
*
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
+ * 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
*
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * http://www.apache.org/licenses/LICENSE-2.0
*
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ * 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, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
*/
-/*
- * File: main.c
- * Author: "Fulup Ar Foll"
- *
- * Created on 05 December 2015, 15:38
- */
-
-#include "local-def.h"
+#define _GNU_SOURCE
+#define AFB_BINDING_PRAGMA_NO_VERBOSE_MACRO
-#include <syslog.h>
-#include <setjmp.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
#include <signal.h>
-#include <getopt.h>
-#include <pwd.h>
-
-static sigjmp_buf exitPoint; // context save for set/longjmp
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <json-c/json.h>
+
+#include <systemd/sd-daemon.h>
+
+#include "afb-config.h"
+#include "afb-hswitch.h"
+#include "afb-apiset.h"
+#include "afb-api-so.h"
+#include "afb-api-dbus.h"
+#include "afb-api-ws.h"
+#include "afb-hsrv.h"
+#include "afb-hreq.h"
+#include "afb-xreq.h"
+#include "jobs.h"
+#include "afb-session.h"
+#include "verbose.h"
+#include "afb-common.h"
+#include "afb-monitor.h"
+#include "afb-hook.h"
+#include "sd-fds.h"
+
+/*
+ if SELF_PGROUP == 0 the launched command is the group leader
+ if SELF_PGROUP != 0 afb-daemon is the group leader
+*/
+#define SELF_PGROUP 1
+
+struct afb_apiset *main_apiset;
+
+static struct afb_config *config;
+static pid_t childpid;
/*----------------------------------------------------------
- | printversion
- | print version and copyright
+ | helpers for handling list of arguments
+--------------------------------------------------------- */
- static void printVersion (void) {
-
- fprintf (stderr,"\n----------------------------------------- \n");
- fprintf (stderr,"| AFB [Application Framework Binder] version=%s |\n", AJQ_VERSION);
- fprintf (stderr,"----------------------------------------- \n");
- fprintf (stderr,"| Copyright(C) 2015 Fulup Ar Foll /IoT.bzh [fulup -at- iot.bzh]\n");
- fprintf (stderr,"| AFB comes with ABSOLUTELY NO WARRANTY.\n");
- fprintf (stderr,"| Licence [what ever makes you happy] until you fix bugs by yourself :)\n\n");
- exit (0);
- } // end printVersion
-
-
-// Define command line option
-#define SET_VERBOSE 101
-#define SET_BACKGROUND 105
-#define SET_FORGROUND 106
-#define KILL_PREV_EXIT 107
-#define KILL_PREV_REST 108
-#define SET_FAKE_MOD 109
-
-#define SET_TCP_PORT 120
-#define SET_ROOT_DIR 121
-#define SET_ROOT_BASE 122
-#define SET_ROOT_API 123
-#define SET_ROOT_ALIAS 124
-
-#define SET_CACHE_TO 130
-#define SET_USERID 131
-#define SET_PID_FILE 132
-#define SET_SESSION_DIR 133
-#define SET_CONFIG_FILE 134
-#define SET_CONFIG_SAVE 135
-#define SET_CONFIG_EXIT 138
-
-#define SET_AUTH_TOKEN 141
-#define SET_LDPATH 142
-#define SET_APITIMEOUT 143
-#define SET_CNTXTIMEOUT 144
-
-#define DISPLAY_VERSION 150
-#define DISPLAY_HELP 151
-
-#define SET_MODE 160
-#define SET_READYFD 161
-
-
-// Supported option
-static AFB_options cliOptions [] = {
- {SET_VERBOSE ,0,"verbose" , "Verbose Mode"},
-
- {SET_FORGROUND ,0,"foreground" , "Get all in foreground mode"},
- {SET_BACKGROUND ,0,"daemon" , "Get all in background mode"},
- {KILL_PREV_EXIT ,0,"kill" , "Kill active process if any and exit"},
- {KILL_PREV_REST ,0,"restart" , "Kill active process if any and restart"},
-
- {SET_TCP_PORT ,1,"port" , "HTTP listening TCP port [default 1234]"},
- {SET_ROOT_DIR ,1,"rootdir" , "HTTP Root Directory [default $HOME/.AFB]"},
- {SET_ROOT_BASE ,1,"rootbase" , "Angular Base Root URL [default /opa]"},
- {SET_ROOT_API ,1,"rootapi" , "HTML Root API URL [default /api]"},
- {SET_ROOT_ALIAS ,1,"alias" , "Muliple url map outside of rootdir [eg: --alias=/icons:/usr/share/icons]"},
-
- {SET_APITIMEOUT ,1,"apitimeout" , "Plugin API timeout in seconds [default 10]"},
- {SET_CNTXTIMEOUT ,1,"cntxtimeout" , "Client Session Context Timeout [default 900]"},
- {SET_CACHE_TO ,1,"cache-eol" , "Client cache end of live [default 3600s]"},
-
- {SET_USERID ,1,"setuid" , "Change user id [default don't change]"},
- {SET_PID_FILE ,1,"pidfile" , "PID file path [default none]"},
- {SET_SESSION_DIR ,1,"sessiondir" , "Sessions file path [default rootdir/sessions]"},
- {SET_CONFIG_FILE ,1,"config" , "Config Filename [default rootdir/sessions/configs/default.AFB]"},
- {SET_CONFIG_SAVE ,0,"save" , "Save config on disk [default no]"},
- {SET_CONFIG_EXIT ,0,"saveonly" , "Save config on disk and then exit"},
-
- {SET_LDPATH ,1,"ldpaths" , "Load Plugins from dir1:dir2:... [default = PLUGIN_INSTALL_DIR"},
- {SET_AUTH_TOKEN ,1,"token" , "Initial Secret [default=no-session, --token="" for session without authentication]"},
-
- {DISPLAY_VERSION ,0,"version" , "Display version and copyright"},
- {DISPLAY_HELP ,0,"help" , "Display this help"},
-
- {SET_MODE ,1,"mode" , "set the mode: either local, remote or global"},
- {SET_READYFD ,1,"readyfd" , "set the #fd to signal when ready"},
- {0, 0, 0}
- };
-
-static AFB_aliasdir aliasdir[MAX_ALIAS];
-static int aliascount=0;
+
+/*
+ * Calls the callback 'run' for each value of the 'list'
+ * until the callback returns 0 or the end of the list is reached.
+ * Returns either NULL if the end of the list is reached or a pointer
+ * to the item whose value made 'run' return 0.
+ * 'closure' is used for passing user data.
+ */
+static struct afb_config_list *run_for_list(struct afb_config_list *list,
+ int (*run) (void *closure, char *value),
+ void *closure)
+{
+ while (list && run(closure, list->value))
+ list = list->next;
+ return list;
+}
+
+static int run_start(void *closure, char *value)
+{
+ int (*starter) (const char *value, struct afb_apiset *apiset) = closure;
+ return starter(value, main_apiset) >= 0;
+}
+
+static void apiset_start_list(struct afb_config_list *list,
+ int (*starter) (const char *value, struct afb_apiset *apiset), const char *message)
+{
+ list = run_for_list(list, run_start, starter);
+ if (list) {
+ ERROR("can't start %s %s", message, list->value);
+ exit(1);
+ }
+}
/*----------------------------------------------------------
- | timeout signalQuit
- |
+ | exit_handler
+ | Handles on exit specific actions
+--------------------------------------------------------- */
-void signalQuit (int signum) {
-
- sigset_t sigset;
+static void exit_handler()
+{
+ struct sigaction siga;
+
+ memset(&siga, 0, sizeof siga);
+ siga.sa_handler = SIG_IGN;
+ sigaction(SIGTERM, &siga, NULL);
+
+ if (SELF_PGROUP)
+ killpg(0, SIGTERM);
+ else if (childpid > 0)
+ killpg(childpid, SIGTERM);
+ exit(0);
+}
- // unlock timeout signal to allow a new signal to come
- sigemptyset (&sigset);
- sigaddset (&sigset, SIGABRT);
- sigprocmask (SIG_UNBLOCK, &sigset, 0);
+static void on_sigterm(int signum, siginfo_t *info, void *uctx)
+{
+ NOTICE("Received SIGTERM");
+ exit(0);
+}
- fprintf (stderr, "%s ERR:Received signal quit\n",configTime());
- syslog (LOG_ERR, "Daemon got kill3 & quit [please report bug]");
- longjmp (exitPoint, signum);
+static void on_sighup(int signum, siginfo_t *info, void *uctx)
+{
+ NOTICE("Received SIGHUP");
+ /* TODO */
}
+static void setup_daemon()
+{
+ struct sigaction siga;
-/*----------------------------------------------------------
- | printHelp
- | print information from long option array
- +--------------------------------------------------------- */
+ /* install signal handlers */
+ memset(&siga, 0, sizeof siga);
+ siga.sa_flags = SA_SIGINFO;
+
+ siga.sa_sigaction = on_sigterm;
+ sigaction(SIGTERM, &siga, NULL);
+
+ siga.sa_sigaction = on_sighup;
+ sigaction(SIGHUP, &siga, NULL);
- static void printHelp(char *name) {
- int ind;
- char command[20];
-
- fprintf (stderr,"%s:\nallowed options\n", name);
- for (ind=0; cliOptions [ind].name != NULL;ind++)
- {
- // display options
- if (cliOptions [ind].has_arg == 0 )
- {
- fprintf (stderr," --%-15s %s\n", cliOptions [ind].name, cliOptions[ind].help);
- } else {
- sprintf(command,"%s=xxxx", cliOptions [ind].name);
- fprintf (stderr," --%-15s %s\n", command, cliOptions[ind].help);
- }
- }
- fprintf (stderr,"Example:\n %s\\\n --verbose --port=1234 --token='azerty' --ldpaths=build/plugins:/usr/lib64/agl/plugins\n", name);
-} // end printHelp
+ /* handle groups */
+ atexit(exit_handler);
+
+ /* ignore any SIGPIPE */
+ signal(SIGPIPE, SIG_IGN);
+}
/*----------------------------------------------------------
- | writePidFile
- | write a file in /var/run/AFB with pid
+ | daemonize
+ | set the process in background
+--------------------------------------------------------- */
-static int writePidFile (AFB_config *config, int pid) {
- FILE *file;
-
- // if no pid file configure just return
- if (config->pidfile == NULL) return 0;
-
- // open pid file in write mode
- file = fopen(config->pidfile,"w");
- if (file == NULL) {
- fprintf (stderr,"%s ERR:writePidFile fail to open [%s]\n",configTime(), config->pidfile);
- return -1;
- }
-
- // write pid in file and close
- fprintf (file, "%d\n", pid);
- fclose (file);
- return 0;
+static void daemonize()
+{
+ int consoleFD;
+ int pid;
+
+ // open /dev/console to redirect output messAFBes
+ consoleFD = open(config->console, O_WRONLY | O_APPEND | O_CREAT, 0640);
+ if (consoleFD < 0) {
+ ERROR("AFB-daemon cannot open /dev/console (use --foreground)");
+ exit(1);
+ }
+ // fork process when running background mode
+ pid = fork();
+
+ // if fail nothing much to do
+ if (pid == -1) {
+ ERROR("AFB-daemon Failed to fork son process");
+ exit(1);
+ }
+ // if in father process, just leave
+ if (pid != 0)
+ _exit(0);
+
+ // son process get all data in standalone mode
+ NOTICE("background mode [pid:%d console:%s]", getpid(),
+ config->console);
+
+ // redirect default I/O on console
+ close(2);
+ dup(consoleFD); // redirect stderr
+ close(1);
+ dup(consoleFD); // redirect stdout
+ close(0); // no need for stdin
+ close(consoleFD);
+
+#if 0
+ setsid(); // allow father process to fully exit
+ sleep(2); // allow main to leave and release port
+#endif
}
-/*----------------------------------------------------------
- | readPidFile
- | read file in /var/run/AFB with pid
+/*---------------------------------------------------------
+ | http server
+ | Handles the HTTP server
+--------------------------------------------------------- */
-static int readPidFile (AFB_config *config) {
- int pid;
- FILE *file;
- int status;
+static int init_alias(void *closure, char *spec)
+{
+ struct afb_hsrv *hsrv = closure;
+ char *path = strchr(spec, ':');
+
+ if (path == NULL) {
+ ERROR("Missing ':' in alias %s. Alias ignored", spec);
+ return 1;
+ }
+ *path++ = 0;
+ INFO("Alias for url=%s to path=%s", spec, path);
+ return afb_hsrv_add_alias(hsrv, spec, afb_common_rootdir_get_fd(), path,
+ 0, 0);
+}
+
+static int init_http_server(struct afb_hsrv *hsrv)
+{
+ if (!afb_hsrv_add_handler
+ (hsrv, config->rootapi, afb_hswitch_websocket_switch, main_apiset, 20))
+ return 0;
- if (config->pidfile == NULL) return -1;
+ if (!afb_hsrv_add_handler
+ (hsrv, config->rootapi, afb_hswitch_apis, main_apiset, 10))
+ return 0;
- // open pid file in write mode
- file = fopen(config->pidfile,"r");
- if (file == NULL) {
- fprintf (stderr,"%s ERR:readPidFile fail to open [%s]\n",configTime(), config->pidfile);
- return -1;
- }
+ if (run_for_list(config->aliases, init_alias, hsrv))
+ return 0;
- // write pid in file and close
- status = fscanf (file, "%d\n", &pid);
- fclose (file);
+ if (config->roothttp != NULL) {
+ if (!afb_hsrv_add_alias
+ (hsrv, "", afb_common_rootdir_get_fd(), config->roothttp,
+ -10, 1))
+ return 0;
+ }
- // never kill pid 0
- if (status != 1) return -1;
+ if (!afb_hsrv_add_handler
+ (hsrv, config->rootbase, afb_hswitch_one_page_api_redirect, NULL,
+ -20))
+ return 0;
- return (pid);
+ return 1;
}
-/*----------------------------------------------------------
- | closeSession
- | try to close everything before leaving
- +--------------------------------------------------------- */
-static void closeSession (AFB_session *session) {
+static struct afb_hsrv *start_http_server()
+{
+ int rc;
+ struct afb_hsrv *hsrv;
+ if (afb_hreq_init_download_path(config->uploaddir)) {
+ ERROR("unable to set the upload directory %s", config->uploaddir);
+ return NULL;
+ }
+
+ hsrv = afb_hsrv_create();
+ if (hsrv == NULL) {
+ ERROR("memory allocation failure");
+ return NULL;
+ }
+
+ if (!afb_hsrv_set_cache_timeout(hsrv, config->cacheTimeout)
+ || !init_http_server(hsrv)) {
+ ERROR("initialisation of httpd failed");
+ afb_hsrv_put(hsrv);
+ return NULL;
+ }
+ NOTICE("Waiting port=%d rootdir=%s", config->httpdPort, config->rootdir);
+ NOTICE("Browser URL= http://localhost:%d", config->httpdPort);
+
+ rc = afb_hsrv_start(hsrv, (uint16_t) config->httpdPort, 15);
+ if (!rc) {
+ ERROR("starting of httpd failed");
+ afb_hsrv_put(hsrv);
+ return NULL;
+ }
+
+ return hsrv;
}
-/*----------------------------------------------------------
- | listenLoop
- | Main listening HTTP loop
+/*---------------------------------------------------------
+ | execute_command
+ |
+--------------------------------------------------------- */
-static void listenLoop (AFB_session *session) {
- AFB_error err;
- if (signal (SIGABRT, signalQuit) == SIG_ERR) {
- fprintf (stderr, "%s ERR: main fail to install Signal handler\n", configTime());
- return;
- }
+static void on_sigchld(int signum, siginfo_t *info, void *uctx)
+{
+ if (info->si_pid == childpid) {
+ switch (info->si_code) {
+ case CLD_EXITED:
+ case CLD_KILLED:
+ case CLD_DUMPED:
+ childpid = 0;
+ if (!SELF_PGROUP)
+ killpg(info->si_pid, SIGKILL);
+ waitpid(info->si_pid, NULL, 0);
+ exit(0);
+ }
+ }
+}
- // ------ Start httpd server
- if (session->config->httpdPort > 0) {
+/*
+# @@ @
+# @p port
+# @t token
+*/
+
+#define SUBST_CHAR '@'
+#define SUBST_STR "@"
+
+static char *instanciate_string(char *arg, const char *port, const char *token)
+{
+ char *resu, *it, *wr;
+ int chg, dif;
+
+ /* get the changes */
+ chg = 0;
+ dif = 0;
+ it = strchrnul(arg, SUBST_CHAR);
+ while (*it) {
+ switch(*++it) {
+ case 'p': chg++; dif += (int)strlen(port) - 2; break;
+ case 't': chg++; dif += (int)strlen(token) - 2; break;
+ case SUBST_CHAR: it++; chg++; dif--; break;
+ default: break;
+ }
+ it = strchrnul(it, SUBST_CHAR);
+ }
- err = httpdStart (session);
- if (err != AFB_SUCCESS) return;
+ /* return arg when no change */
+ if (!chg)
+ return arg;
- if (session->readyfd != 0) {
- static const char readystr[] = "READY=1";
- write(session->readyfd, readystr, sizeof(readystr) - 1);
- close(session->readyfd);
+ /* allocates the result */
+ resu = malloc((it - arg) + dif + 1);
+ if (!resu) {
+ ERROR("out of memory");
+ return NULL;
}
- // infinite loop
- httpdLoop(session);
+ /* instanciate the arguments */
+ wr = resu;
+ for (;;) {
+ it = strchrnul(arg, SUBST_CHAR);
+ wr = mempcpy(wr, arg, it - arg);
+ if (!*it)
+ break;
+ switch(*++it) {
+ case 'p': wr = stpcpy(wr, port); break;
+ case 't': wr = stpcpy(wr, token); break;
+ default: *wr++ = SUBST_CHAR;
+ case SUBST_CHAR: *wr++ = *it;
+ }
+ arg = ++it;
+ }
- fprintf (stderr, "hoops returned from infinite loop [report bug]\n");
- }
+ *wr = 0;
+ return resu;
}
-
-/*---------------------------------------------------------
- | main
- | Parse option and launch action
- +--------------------------------------------------------- */
-int main(int argc, char *argv[]) {
- AFB_session *session;
- char* programName = argv [0];
- int optionIndex = 0;
- int optc, ind, consoleFD;
- int pid, nbcmd, status;
- AFB_config cliconfig; // temp structure to store CLI option before file config upload
-
- // ------------- Build session handler & init config -------
- session = configInit ();
- memset(&cliconfig,0,sizeof(cliconfig));
- memset(&aliasdir ,0,sizeof(aliasdir));
- cliconfig.aliasdir = aliasdir;
-
- // GNU CLI getopts nterface.
- struct option ggcOption;
- struct option *gnuOptions;
-
- // ------------------ Process Command Line -----------------------
-
- // if no argument print help and return
- if (argc < 2) {
- printHelp(programName);
- return (-1);
- }
-
- // build GNU getopt info from cliOptions
- nbcmd = sizeof (cliOptions) / sizeof (AFB_options);
- gnuOptions = malloc (sizeof (ggcOption) * nbcmd);
- for (ind=0; ind < nbcmd;ind++) {
- gnuOptions [ind].name = cliOptions[ind].name;
- gnuOptions [ind].has_arg = cliOptions[ind].has_arg;
- gnuOptions [ind].flag = 0;
- gnuOptions [ind].val = cliOptions[ind].val;
- }
-
- // get all options from command line
- while ((optc = getopt_long (argc, argv, "vsp?", gnuOptions, &optionIndex))
- != EOF)
- {
- switch (optc)
- {
- case SET_VERBOSE:
- verbose = 1;
- break;
-
- case SET_TCP_PORT:
- if (optarg == 0) goto needValueForOption;
- if (!sscanf (optarg, "%d", &cliconfig.httpdPort)) goto notAnInteger;
- break;
-
- case SET_APITIMEOUT:
- if (optarg == 0) goto needValueForOption;
- if (!sscanf (optarg, "%d", &cliconfig.apiTimeout)) goto notAnInteger;
- break;
-
- case SET_CNTXTIMEOUT:
- if (optarg == 0) goto needValueForOption;
- if (!sscanf (optarg, "%d", &cliconfig.cntxTimeout)) goto notAnInteger;
- break;
-
- case SET_ROOT_DIR:
- if (optarg == 0) goto needValueForOption;
- cliconfig.rootdir = optarg;
- if (verbose) fprintf(stderr, "Forcing Rootdir=%s\n",cliconfig.rootdir);
- break;
-
- case SET_ROOT_BASE:
- if (optarg == 0) goto needValueForOption;
- cliconfig.rootbase = optarg;
- if (verbose) fprintf(stderr, "Forcing Rootbase=%s\n",cliconfig.rootbase);
- break;
-
- case SET_ROOT_API:
- if (optarg == 0) goto needValueForOption;
- cliconfig.rootapi = optarg;
- if (verbose) fprintf(stderr, "Forcing Rootapi=%s\n",cliconfig.rootapi);
- break;
-
- case SET_ROOT_ALIAS:
- if (optarg == 0) goto needValueForOption;
- if (aliascount < MAX_ALIAS) {
- aliasdir[aliascount].url = strsep(&optarg,":");
- aliasdir[aliascount].path = strsep(&optarg,":");
- aliasdir[aliascount].len = strlen(aliasdir[aliascount].url);
- if (verbose) fprintf(stderr, "Alias url=%s path=%s\n", aliasdir[aliascount].url, aliasdir[aliascount].path);
- aliascount++;
- } else {
- fprintf(stderr, "Too many aliases [max:%s] %s ignored\n", optarg, MAX_ALIAS-1);
- }
- break;
-
- case SET_AUTH_TOKEN:
- if (optarg == 0) goto needValueForOption;
- cliconfig.token = optarg;
- break;
-
- case SET_LDPATH:
- if (optarg == 0) goto needValueForOption;
- cliconfig.ldpaths = optarg;
- break;
-
- case SET_PID_FILE:
- if (optarg == 0) goto needValueForOption;
- cliconfig.pidfile = optarg;
- break;
-
- case SET_SESSION_DIR:
- if (optarg == 0) goto needValueForOption;
- cliconfig.sessiondir = optarg;
- break;
-
- case SET_CONFIG_FILE:
- if (optarg == 0) goto needValueForOption;
- cliconfig.configfile = optarg;
- break;
-
- case SET_CACHE_TO:
- if (optarg == 0) goto needValueForOption;
- if (!sscanf (optarg, "%d", &cliconfig.cacheTimeout)) goto notAnInteger;
- break;
-
- case SET_CONFIG_EXIT:
- if (optarg != 0) goto noValueForOption;
- session->configsave = 1;
- session->forceexit = 1;
- break;
-
- case SET_CONFIG_SAVE:
- if (optarg != 0) goto noValueForOption;
- session->configsave = 1;
- break;
-
- case SET_USERID:
- if (optarg == 0) goto needValueForOption;
- if (!sscanf (optarg, "%s", &cliconfig.setuid)) goto notAnInteger;
- break;
-
- case SET_FAKE_MOD:
- if (optarg != 0) goto noValueForOption;
- session->fakemod = 1;
- break;
-
- case SET_FORGROUND:
- if (optarg != 0) goto noValueForOption;
- session->foreground = 1;
- break;
-
- case SET_BACKGROUND:
- if (optarg != 0) goto noValueForOption;
- session->background = 1;
- break;
-
- case KILL_PREV_REST:
- if (optarg != 0) goto noValueForOption;
- session->killPrevious = 1;
- break;
-
- case KILL_PREV_EXIT:
- if (optarg != 0) goto noValueForOption;
- session->killPrevious = 2;
- break;
-
- case SET_MODE:
- if (optarg == 0) goto needValueForOption;
- if (!strcmp(optarg, "local")) cliconfig.mode = AFB_MODE_LOCAL;
- else if (!strcmp(optarg, "remote")) cliconfig.mode = AFB_MODE_REMOTE;
- else if (!strcmp(optarg, "global")) cliconfig.mode = AFB_MODE_GLOBAL;
- else goto badMode;
- break;
-
- case SET_READYFD:
- if (optarg == 0) goto needValueForOption;
- if (!sscanf (optarg, "%u", &session->readyfd)) goto notAnInteger;
- break;
-
- case DISPLAY_VERSION:
- if (optarg != 0) goto noValueForOption;
- printVersion();
- goto normalExit;
-
- case DISPLAY_HELP:
- default:
- printHelp(programName);
- goto normalExit;
-
- }
- }
-
- // if exist merge config file with CLI arguments
- configLoadFile (session, &cliconfig);
- initPlugins(session);
-
- // ------------------ sanity check ----------------------------------------
- if ((session->background) && (session->foreground)) {
- fprintf (stderr, "%s ERR: cannot select foreground & background at the same time\n",configTime());
- exit (-1);
- }
-
- // ------------------ Some useful default values -------------------------
- if ((session->background == 0) && (session->foreground == 0)) session->foreground=1;
-
- // open syslog if ever needed
- openlog("AFB-log", 0, LOG_DAEMON);
-
- // -------------- Try to kill any previous process if asked ---------------------
- if (session->killPrevious) {
- pid = readPidFile (session->config); // enforce commandline option
- switch (pid) {
- case -1:
- fprintf (stderr, "%s ERR:main --kill ignored no PID file [%s]\n",configTime(), session->config->pidfile);
- break;
- case 0:
- fprintf (stderr, "%s ERR:main --kill ignored no active AFB process\n",configTime());
- break;
- default:
- status = kill (pid,SIGINT );
- if (status == 0) {
- if (verbose) printf ("%s INF:main signal INTR sent to pid:%d \n", configTime(), pid);
- } else {
- // try kill -9
- status = kill (pid,9);
- if (status != 0) fprintf (stderr, "%s ERR:main failled to killed pid=%d \n",configTime(), pid);
- }
- } // end switch pid
-
- if (session->killPrevious >= 2) goto normalExit;
- } // end killPrevious
-
-
- // ------------------ clean exit on CTR-C signal ------------------------
- if (signal (SIGINT, signalQuit) == SIG_ERR) {
- fprintf (stderr, "%s Quit Signal received.",configTime());
- return (-1);
- }
-
- // save exitPoint context when returning from longjmp closeSession and exit
- status = setjmp (exitPoint); // return !+ when coming from longjmp
- if (status != 0) {
- if (verbose) printf ("INF:main returning from longjump after signal [%d]\n", status);
- closeSession (session);
- goto exitOnSignal;
- }
-
- // let's run this program with a low priority
- status=nice (20);
-
- // ------------------ Finaly Process Commands -----------------------------
- // if --save then store config on disk upfront
- if (session->configsave) configStoreFile (session);
- if (session->forceexit) exit (0);
-
- if (session->config->setuid) {
- int err;
- struct passwd *passwd;
- passwd=getpwnam(session->config->setuid);
-
- if (passwd == NULL) goto errorSetuid;
-
- err = setuid(passwd->pw_uid);
- if (err) goto errorSetuid;
- }
-
- // let's not take the risk to run as ROOT
- //if (getuid() == 0) goto errorNoRoot;
-
- // check session dir and create if it does not exist
- if (sessionCheckdir (session) != AFB_SUCCESS) goto errSessiondir;
- if (verbose) fprintf (stderr, "AFB:notice Init config done\n");
-
-
-
- // ---- run in foreground mode --------------------
- if (session->foreground) {
-
- if (verbose) fprintf (stderr,"AFB:notice Foreground mode\n");
-
- // write a pid file for --kill-previous and --raise-debug option
- status = writePidFile (session->config, getpid());
- if (status == -1) goto errorPidFile;
-
- // enter listening loop in foreground
- listenLoop(session);
- goto exitInitLoop;
- } // end foreground
-
-
- // --------- run in background mode -----------
- if (session->background) {
-
- // if (status != 0) goto errorCommand;
- if (verbose) printf ("AFB: Entering background mode\n");
-
- // open /dev/console to redirect output messAFBes
- consoleFD = open(session->config->console, O_WRONLY | O_APPEND | O_CREAT , 0640);
- if (consoleFD < 0) goto errConsole;
-
- // fork process when running background mode
- pid = fork ();
-
- // son process get all data in standalone mode
- if (pid == 0) {
-
- printf ("\nAFB: background mode [pid:%d console:%s]\n", getpid(),session->config->console);
- if (verbose) printf ("AFB:info use '%s --restart --rootdir=%s # [--pidfile=%s] to restart daemon\n", programName,session->config->rootdir, session->config->pidfile);
-
- // redirect default I/O on console
- close (2); status=dup(consoleFD); // redirect stderr
- close (1); status=dup(consoleFD); // redirect stdout
- close (0); // no need for stdin
- close (consoleFD);
-
- setsid(); // allow father process to fully exit
- sleep (2); // allow main to leave and release port
-
- fprintf (stderr, "----------------------------\n");
- fprintf (stderr, "%s INF:main background pid=%d\n", configTime(), getpid());
- fflush (stderr);
-
- // if everything look OK then look forever
- syslog (LOG_ERR, "AFB: Entering infinite loop in background mode");
+static int instanciate_environ(const char *port, const char *token)
+{
+ extern char **environ;
+ char *repl;
+ int i;
+
+ /* instanciate the environment */
+ for (i = 0 ; environ[i] ; i++) {
+ repl = instanciate_string(environ[i], port, token);
+ if (!repl)
+ return -1;
+ environ[i] = repl;
+ }
+ return 0;
+}
- // should normally never return from this loop
- listenLoop(session);
- syslog (LOG_ERR, "AFB:FAIL background infinite loop exited check [%s]\n", session->config->console);
+static int instanciate_command_args(const char *port, const char *token)
+{
+ char *repl;
+ int i;
+
+ /* instanciate the arguments */
+ for (i = 0 ; config->exec[i] ; i++) {
+ repl = instanciate_string(config->exec[i], port, token);
+ if (!repl)
+ return -1;
+ config->exec[i] = repl;
+ }
+ return 0;
+}
+
+static int execute_command()
+{
+ struct sigaction siga;
+ char port[20];
+ int rc;
+
+ /* check whether a command is to execute or not */
+ if (!config->exec || !config->exec[0])
+ return 0;
+
+ if (SELF_PGROUP)
+ setpgid(0, 0);
+
+ /* install signal handler */
+ memset(&siga, 0, sizeof siga);
+ siga.sa_sigaction = on_sigchld;
+ siga.sa_flags = SA_SIGINFO;
+ sigaction(SIGCHLD, &siga, NULL);
+
+ /* fork now */
+ childpid = fork();
+ if (childpid)
+ return 0;
+
+ /* compute the string for port */
+ if (config->httpdPort)
+ rc = snprintf(port, sizeof port, "%d", config->httpdPort);
+ else
+ rc = snprintf(port, sizeof port, "%cp", SUBST_CHAR);
+ if (rc < 0 || rc >= (int)(sizeof port)) {
+ ERROR("port->txt failed");
+ }
+ else {
+ /* instanciate arguments and environment */
+ if (instanciate_command_args(port, config->token) >= 0
+ && instanciate_environ(port, config->token) >= 0) {
+ /* run */
+ if (!SELF_PGROUP)
+ setpgid(0, 0);
+ execv(config->exec[0], config->exec);
+ ERROR("can't launch %s: %m", config->exec[0]);
+ }
+ }
+ exit(1);
+ return -1;
+}
- goto exitInitLoop;
- }
+/*---------------------------------------------------------
+ | startup calls
+ +--------------------------------------------------------- */
- // if fail nothing much to do
- if (pid == -1) goto errorFork;
+struct startup_req
+{
+ struct afb_xreq xreq;
+ char *api;
+ char *verb;
+ struct afb_config_list *current;
+ struct afb_session *session;
+};
+
+static void startup_call_reply(struct afb_xreq *xreq, int iserror, struct json_object *obj)
+{
+ struct startup_req *sreq = CONTAINER_OF_XREQ(struct startup_req, xreq);
+
+ if (!iserror)
+ NOTICE("startup call %s returned %s", sreq->current->value, json_object_get_string(obj));
+ else {
+ ERROR("startup call %s ERROR! %s", sreq->current->value, json_object_get_string(obj));
+ exit(1);
+ }
+}
- // fork worked and we are in father process
- status = writePidFile (session->config, pid);
- if (status == -1) goto errorPidFile;
+static void startup_call_current(struct startup_req *sreq);
+
+static void startup_call_unref(struct afb_xreq *xreq)
+{
+ struct startup_req *sreq = CONTAINER_OF_XREQ(struct startup_req, xreq);
+
+ free(sreq->api);
+ free(sreq->verb);
+ json_object_put(sreq->xreq.json);
+ sreq->current = sreq->current->next;
+ if (sreq->current)
+ startup_call_current(sreq);
+ else {
+ afb_session_close(sreq->session);
+ afb_session_unref(sreq->session);
+ free(sreq);
+ }
+}
- // we are in father process, we don't need this one
- _exit (0);
+static struct afb_xreq_query_itf startup_xreq_itf =
+{
+ .reply = startup_call_reply,
+ .unref = startup_call_unref
+};
+
+static void startup_call_current(struct startup_req *sreq)
+{
+ char *api, *verb, *json;
+
+ api = sreq->current->value;
+ verb = strchr(api, '/');
+ if (verb) {
+ json = strchr(verb, ':');
+ if (json) {
+ afb_xreq_init(&sreq->xreq, &startup_xreq_itf);
+ afb_context_init(&sreq->xreq.context, sreq->session, NULL);
+ sreq->xreq.context.validated = 1;
+ sreq->api = strndup(api, verb - api);
+ sreq->verb = strndup(verb + 1, json - verb - 1);
+ sreq->xreq.api = sreq->api;
+ sreq->xreq.verb = sreq->verb;
+ sreq->xreq.json = json_tokener_parse(json + 1);
+ if (sreq->api && sreq->verb && sreq->xreq.json) {
+ afb_xreq_process(&sreq->xreq, main_apiset);
+ return;
+ }
+ }
+ }
+ ERROR("Bad call specification %s", sreq->current->value);
+ exit(1);
+}
- } // end background-foreground
+static void run_startup_calls()
+{
+ struct afb_config_list *list;
+ struct startup_req *sreq;
+
+ list = config->calls;
+ if (list) {
+ sreq = calloc(1, sizeof *sreq);
+ sreq->session = afb_session_create("startup", 3600);
+ sreq->current = list;
+ startup_call_current(sreq);
+ }
+}
-normalExit:
- closeSession (session); // try to close everything before leaving
- if (verbose) printf ("\n---- Application Framework Binder Normal End ------\n");
- exit(0);
+/*---------------------------------------------------------
+ | job for starting the daemon
+ +--------------------------------------------------------- */
-// ------------- Fatal ERROR display error and quit -------------
-errorSetuid:
- fprintf (stderr,"\nERR:AFB-daemon Failed to change UID to username=[%s]\n\n", session->config->setuid);
- exit (-1);
-
-//errorNoRoot:
-// fprintf (stderr,"\nERR:AFB-daemon Not allow to run as root [use --seteuid=username option]\n\n");
-// exit (-1);
+static void start()
+{
+ struct afb_hsrv *hsrv;
-errorPidFile:
- fprintf (stderr,"\nERR:AFB-daemon Failed to write pid file [%s]\n\n", session->config->pidfile);
- exit (-1);
+ // ------------------ sanity check ----------------------------------------
+ if (config->httpdPort <= 0) {
+ ERROR("no port is defined");
+ goto error;
+ }
-errorFork:
- fprintf (stderr,"\nERR:AFB-daemon Failed to fork son process\n\n");
- exit (-1);
+ /* set the directories */
+ mkdir(config->workdir, S_IRWXU | S_IRGRP | S_IXGRP);
+ if (chdir(config->workdir) < 0) {
+ ERROR("Can't enter working dir %s", config->workdir);
+ goto error;
+ }
+ if (afb_common_rootdir_set(config->rootdir) < 0) {
+ ERROR("failed to set common root directory");
+ goto error;
+ }
-needValueForOption:
- fprintf (stderr,"\nERR:AFB-daemon option [--%s] need a value i.e. --%s=xxx\n\n"
- ,gnuOptions[optionIndex].name, gnuOptions[optionIndex].name);
- exit (-1);
+ /* configure the daemon */
+ afb_session_init(config->nbSessionMax, config->cntxTimeout, config->token);
+ if (!afb_hreq_init_cookie(config->httpdPort, config->rootapi, config->cntxTimeout)) {
+ ERROR("initialisation of cookies failed");
+ goto error;
+ }
+ main_apiset = afb_apiset_create("main", config->apiTimeout);
+ if (!main_apiset) {
+ ERROR("can't create main api set");
+ goto error;
+ }
+ if (afb_monitor_init() < 0) {
+ ERROR("failed to setup monitor");
+ goto error;
+ }
-noValueForOption:
- fprintf (stderr,"\nERR:AFB-daemon option [--%s] don't take value\n\n"
- ,gnuOptions[optionIndex].name);
- exit (-1);
+ /* install hooks */
+ if (config->tracereq)
+ afb_hook_create_xreq(NULL, NULL, NULL, config->tracereq, NULL, NULL);
+ if (config->traceditf)
+ afb_hook_create_ditf(NULL, config->traceditf, NULL, NULL);
+ if (config->tracesvc)
+ afb_hook_create_svc(NULL, config->tracesvc, NULL, NULL);
+
+ /* load bindings */
+ apiset_start_list(config->dbus_clients, afb_api_dbus_add_client, "the afb-dbus client");
+ apiset_start_list(config->ws_clients, afb_api_ws_add_client, "the afb-websocket client");
+ apiset_start_list(config->ldpaths, afb_api_so_add_pathset, "the binding path set");
+ apiset_start_list(config->so_bindings, afb_api_so_add_binding, "the binding");
+
+ apiset_start_list(config->dbus_servers, afb_api_dbus_add_server, "the afb-dbus service");
+ apiset_start_list(config->ws_servers, afb_api_ws_add_server, "the afb-websocket service");
+
+ DEBUG("Init config done");
+
+ /* start the services */
+ if (afb_apiset_start_all_services(main_apiset, 1) < 0)
+ goto error;
+
+ /* start the HTTP server */
+ if (!config->noHttpd) {
+ hsrv = start_http_server();
+ if (hsrv == NULL)
+ goto error;
+ }
-notAnInteger:
- fprintf (stderr,"\nERR:AFB-daemon option [--%s] requirer an interger i.e. --%s=9\n\n"
- ,gnuOptions[optionIndex].name, gnuOptions[optionIndex].name);
- exit (-1);
+ /* run the command */
+ if (execute_command() < 0)
+ goto error;
-badMode:
- fprintf (stderr,"\nERR:AFB-daemon option [--%s] only accepts local, global or remote.\n\n"
- ,gnuOptions[optionIndex].name);
- exit (-1);
+ /* ready */
+ sd_notify(1, "READY=1");
-exitOnSignal:
- fprintf (stderr,"\n%s INF:AFB-daemon pid=%d received exit signal (Hopefully crtl-C or --kill-previous !!!)\n\n"
- ,configTime(), getpid());
- exit (-1);
+ /* run the startup calls */
+ run_startup_calls();
+ return;
+error:
+ exit(1);
+}
-errConsole:
- fprintf (stderr,"\nERR:AFB-daemon cannot open /dev/console (use --foreground)\n\n");
- exit (-1);
+/*---------------------------------------------------------
+ | main
+ | Parse option and launch action
+ +--------------------------------------------------------- */
-errSessiondir:
- fprintf (stderr,"\nERR:AFB-daemon cannot read/write session dir\n\n");
- exit (-1);
+int main(int argc, char *argv[])
+{
+ // let's run this program with a low priority
+ nice(20);
+
+ sd_fds_init();
+
+ // ------------- Build session handler & init config -------
+ config = afb_config_parse_arguments(argc, argv);
+ INFO("running with pid %d", getpid());
+
+ // --------- run -----------
+ if (config->background) {
+ // --------- in background mode -----------
+ INFO("entering background mode");
+ daemonize();
+ } else {
+ // ---- in foreground mode --------------------
+ INFO("entering foreground mode");
+ }
-errSoundCard:
- fprintf (stderr,"\nERR:AFB-daemon fail to probe sound cards\n\n");
- exit (-1);
+ /* set the daemon environment */
+ setup_daemon();
-exitInitLoop:
- // try to unlink pid file if any
- if (session->background && session->config->pidfile != NULL) unlink (session->config->pidfile);
- exit (-1);
-
-}; /* END AFB-daemon() */
+ /* enter job processing */
+ jobs_start(3, 0, 50, start);
+ WARNING("hoops returned from jobs_enter! [report bug]");
+ return 1;
+}
Code Review / src / app-framework-binder.git / blobdiff