/*
* Copyright (C) 2015 "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"
-
#include <syslog.h>
#include <setjmp.h>
#include <signal.h>
#include <getopt.h>
#include <pwd.h>
+#include <pthread.h>
#include <sys/stat.h>
#include <sys/types.h>
-#define AFB_VERSION "0.1"
-
-static sigjmp_buf exitPoint; // context save for set/longjmp
-
-/*----------------------------------------------------------
- | printversion
- | print version and copyright
- +--------------------------------------------------------- */
- static void printVersion (void) {
+#include "local-def.h"
+#include "afb-apis.h"
+#include "session.h"
- fprintf (stderr,"\n----------------------------------------- \n");
- fprintf (stderr,"| AFB [Application Framework Binder] version=%s |\n", AFB_VERSION);
- fprintf (stderr,"----------------------------------------- \n");
- fprintf (stderr,"| Copyright(C) 2016 /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
+#if !defined(PLUGIN_INSTALL_DIR)
+#error "you should define PLUGIN_INSTALL_DIR"
+#endif
+#define AFB_VERSION "0.1"
// Define command line option
#define SET_VERBOSE 1
#define SET_ROOT_DIR 6
#define SET_ROOT_BASE 7
#define SET_ROOT_API 8
-#define SET_ROOT_ALIAS 9
+#define SET_ALIAS 9
#define SET_CACHE_TIMEOUT 10
#define SET_SESSION_DIR 11
{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_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_TIMEOUT ,1,"cache-eol" , "Client cache end of live [default 3600s]"},
+ {SET_CACHE_TIMEOUT,1,"cache-eol" , "Client cache end of live [default 3600s]"},
{SET_SESSION_DIR ,1,"sessiondir" , "Sessions file path [default rootdir/sessions]"},
};
static AFB_aliasdir aliasdir[MAX_ALIAS];
-static int aliascount=0;
+static int aliascount = 0;
+
+
+/*----------------------------------------------------------
+ | printversion
+ | print version and copyright
+ +--------------------------------------------------------- */
+static void printVersion (void)
+{
+ fprintf (stderr,"\n----------------------------------------- \n");
+ fprintf (stderr,"| AFB [Application Framework Binder] version=%s |\n", AFB_VERSION);
+ fprintf (stderr,"----------------------------------------- \n");
+ fprintf (stderr,"| Copyright(C) 2016 /IoT.bzh [fulup -at- iot.bzh]\n");
+ fprintf (stderr,"| AFB comes with ABSOLUTELY NO WARRANTY.\n");
+ fprintf (stderr,"| Licence Apache 2\n\n");
+ exit (0);
+}
// load config from disk and merge with CLI option
static AFB_error config_set_default (AFB_session * session)
}
-
-/*----------------------------------------------------------
- | timeout signalQuit
- |
- +--------------------------------------------------------- */
-void signalQuit (int signum) {
-
- sigset_t sigset;
-
- // unlock timeout signal to allow a new signal to come
- sigemptyset (&sigset);
- sigaddset (&sigset, SIGABRT);
- sigprocmask (SIG_UNBLOCK, &sigset, 0);
-
- fprintf (stderr, "%s ERR:Received signal quit\n",configTime());
- syslog (LOG_ERR, "Daemon got kill3 & quit [please report bug]");
- longjmp (exitPoint, signum);
-}
-
-
/*----------------------------------------------------------
| printHelp
| print information from long option array
fprintf (stderr,"Example:\n %s\\\n --verbose --port=1234 --token='azerty' --ldpaths=build/plugins:/usr/lib64/agl/plugins\n", name);
} // end printHelp
-/*----------------------------------------------------------
- | closeSession
- | try to close everything before leaving
- +--------------------------------------------------------- */
-static void closeSession (AFB_session *session) {
-
-
-}
-
-/*----------------------------------------------------------
- | listenLoop
- | Main listening HTTP loop
- +--------------------------------------------------------- */
-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;
- }
-
- // ------ Start httpd server
- if (session->config->httpdPort > 0) {
-
- err = httpdStart (session);
- if (err != AFB_SUCCESS) return;
-
- if (session->readyfd != 0) {
- static const char readystr[] = "READY=1";
- write(session->readyfd, readystr, sizeof(readystr) - 1);
- close(session->readyfd);
- }
-
- // infinite loop
- httpdLoop(session);
-
- fprintf (stderr, "hoops returned from infinite loop [report bug]\n");
- }
-}
-
/*---------------------------------------------------------
| main
| Parse option and launch action
if (verbose) fprintf(stderr, "Forcing Rootapi=%s\n",session->config->rootapi);
break;
- case SET_ROOT_ALIAS:
+ case SET_ALIAS:
if (optarg == 0) goto needValueForOption;
if (aliascount < MAX_ALIAS) {
aliasdir[aliascount].url = strsep(&optarg,":");
}
free(gnuOptions);
- // if exist merge config file with CLI arguments
config_set_default (session);
return;
exit (1);
}
+/*----------------------------------------------------------
+ | closeSession
+ | try to close everything before leaving
+ +--------------------------------------------------------- */
+static void closeSession (int status, void *data) {
+ /* AFB_session *session = data; */
+}
+
+/*----------------------------------------------------------
+ | timeout signalQuit
+ |
+ +--------------------------------------------------------- */
+void signalQuit (int signum) {
+
+ sigset_t sigset;
+
+ // unlock timeout signal to allow a new signal to come
+ sigemptyset (&sigset);
+ sigaddset (&sigset, SIGABRT);
+ sigprocmask (SIG_UNBLOCK, &sigset, 0);
+
+ fprintf (stderr, "ERR: Received signal quit\n");
+ syslog (LOG_ERR, "Daemon got kill3 & quit [please report bug]");
+ exit(1);
+}
+
+
+/*----------------------------------------------------------
+ | Error signals
+ |
+ +--------------------------------------------------------- */
+__thread sigjmp_buf *error_handler;
+static void signalError(int signum)
+{
+ sigset_t sigset;
+
+ // unlock signal to allow a new signal to come
+ sigemptyset(&sigset);
+ sigaddset(&sigset, signum);
+ sigprocmask(SIG_UNBLOCK, &sigset, 0);
+ if (error_handler != NULL) {
+ longjmp(*error_handler, signum);
+ }
+}
+
+static void install_error_handlers()
+{
+ int i, signals[] = { SIGALRM, SIGSEGV, SIGFPE, 0 };
+
+ for (i = 0; signals[i] != 0; i++) {
+ if (signal(signals[i], signalError) == SIG_ERR) {
+ fprintf(stderr, "Signal handler error\n");
+ exit(1);
+ }
+ }
+}
+
+/*----------------------------------------------------------
+ | listenLoop
+ | Main listening HTTP loop
+ +--------------------------------------------------------- */
+static void listenLoop (AFB_session *session) {
+ AFB_error err;
+
+ // ------ Start httpd server
+
+ err = httpdStart (session);
+ if (err != AFB_SUCCESS) return;
+
+ if (session->readyfd != 0) {
+ static const char readystr[] = "READY=1";
+ write(session->readyfd, readystr, sizeof(readystr) - 1);
+ close(session->readyfd);
+ }
+
+ // infinite loop
+ httpdLoop(session);
+
+ fprintf (stderr, "hoops returned from infinite loop [report bug]\n");
+}
+
+/*----------------------------------------------------------
+ | daemonize
+ | set the process in background
+ +--------------------------------------------------------- */
+static void daemonize(AFB_session *session)
+{
+ int consoleFD;
+ int pid;
+
+ // open /dev/console to redirect output messAFBes
+ consoleFD = open(session->config->console, O_WRONLY | O_APPEND | O_CREAT , 0640);
+ if (consoleFD < 0) {
+ fprintf (stderr,"\nERR: AFB-daemon cannot open /dev/console (use --foreground)\n\n");
+ exit (1);
+ }
+
+ // fork process when running background mode
+ pid = fork ();
+
+ // if fail nothing much to do
+ if (pid == -1) {
+ fprintf (stderr,"\nERR: AFB-daemon Failed to fork son process\n\n");
+ exit (1);
+ }
+
+ // if in father process, just leave
+ if (pid != 0) _exit (0);
+
+ // son process get all data in standalone mode
+ printf ("\nAFB: background mode [pid:%d console:%s]\n", getpid(),session->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
+
+ fprintf (stderr, "----------------------------\n");
+ fprintf (stderr, "INF: main background pid=%d\n", getpid());
+ fflush (stderr);
+}
+
/*---------------------------------------------------------
| main
| Parse option and launch action
int main(int argc, char *argv[]) {
AFB_session *session;
- int consoleFD;
- int pid, status;
+
+ // open syslog if ever needed
+ openlog("afb-daemon", 0, LOG_DAEMON);
// ------------- Build session handler & init config -------
session = calloc (1, sizeof (AFB_session));
session->config = calloc (1, sizeof (AFB_config));
- parse_arguments(argc, argv, session);
- initPlugins(session);
+ on_exit(closeSession, session);
+ parse_arguments(argc, argv, session);
// ------------------ sanity check ----------------------------------------
if ((session->background) && (session->foreground)) {
- fprintf (stderr, "%s ERR: cannot select foreground & background at the same time\n",configTime());
+ fprintf (stderr, "ERR: cannot select foreground & background at the same time\n");
exit (1);
}
+ if (session->config->httpdPort <= 0) {
+ fprintf (stderr, "ERR: no port is defined\n");
+ exit (1);
+ }
+
+ if (session->config->ldpaths)
+ afb_apis_add_pathset(session->config->ldpaths);
+
+ ctxStoreInit(CTX_NBCLIENTS, session->config->cntxTimeout, afb_apis_count(), session->config->token);
+
+ install_error_handlers();
// ------------------ 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);
-
// ------------------ clean exit on CTR-C signal ------------------------
- if (signal (SIGINT, signalQuit) == SIG_ERR) {
- fprintf (stderr, "%s Quit Signal received.",configTime());
- return 1;
+ if (signal (SIGINT, signalQuit) == SIG_ERR || signal (SIGABRT, signalQuit) == SIG_ERR) {
+ fprintf (stderr, "ERR: main fail to install Signal handler\n");
+ 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);
+ nice (20);
// ------------------ Finaly Process Commands -----------------------------
- // 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");
-
-
+ // let's not take the risk to run as ROOT
+ //if (getuid() == 0) goto errorNoRoot;
+
+#if defined(ALLOWS_SESSION_FILES)
+ // check session dir and create if it does not exist
+ if (sessionCheckdir (session) != AFB_SUCCESS) {
+ fprintf (stderr,"\nERR: AFB-daemon cannot read/write session dir\n\n");
+ exit (1);
+ }
+#endif
+ if (verbose) fprintf (stderr, "AFB: notice Init config done\n");
- // ---- run in foreground mode --------------------
- if (session->foreground) {
+ // ---- run in foreground mode --------------------
+ if (session->foreground) {
if (verbose) fprintf (stderr,"AFB: notice Foreground mode\n");
- // 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);
-
- // 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);
+ daemonize(session);
// if everything look OK then look forever
syslog (LOG_ERR, "AFB: Entering infinite loop in background mode");
- // should normally never return from this loop
- listenLoop(session);
- syslog (LOG_ERR, "AFB: FAIL background infinite loop exited check [%s]\n", session->config->console);
-
- goto exitInitLoop;
- }
-
- // if fail nothing much to do
- if (pid == -1) goto errorFork;
-
- // we are in father process, we don't need this one
- _exit (0);
} // end background-foreground
-normalExit:
- closeSession (session); // try to close everything before leaving
+
+ listenLoop(session);
if (verbose) printf ("\n---- Application Framework Binder Normal End ------\n");
exit(0);
-// ------------- Fatal ERROR display error and quit -------------
-errorFork:
- fprintf (stderr,"\nERR: AFB-daemon Failed to fork son process\n\n");
- exit (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);
-
-errConsole:
- fprintf (stderr,"\nERR: AFB-daemon cannot open /dev/console (use --foreground)\n\n");
- exit (1);
-
-errSessiondir:
- fprintf (stderr,"\nERR: AFB-daemon cannot read/write session dir\n\n");
- exit (1);
-
-exitInitLoop:
- exit (1);
}
Code Review / src / app-framework-binder.git / blobdiff