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00025 #include "asterisk.h"
00026
00027 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 117523 $")
00028
00029 #include <sys/stat.h>
00030 #include <errno.h>
00031 #include <time.h>
00032 #include <utime.h>
00033 #include <stdlib.h>
00034 #include <unistd.h>
00035 #include <dirent.h>
00036 #include <string.h>
00037 #include <string.h>
00038 #include <stdio.h>
00039 #include <unistd.h>
00040
00041 #include "asterisk/lock.h"
00042 #include "asterisk/file.h"
00043 #include "asterisk/logger.h"
00044 #include "asterisk/channel.h"
00045 #include "asterisk/callerid.h"
00046 #include "asterisk/pbx.h"
00047 #include "asterisk/module.h"
00048 #include "asterisk/options.h"
00049 #include "asterisk/utils.h"
00050
00051
00052
00053
00054
00055
00056 enum {
00057
00058
00059
00060
00061 SPOOL_FLAG_ALWAYS_DELETE = (1 << 0),
00062
00063 SPOOL_FLAG_ARCHIVE = (1 << 1)
00064 };
00065
00066 static char qdir[255];
00067 static char qdonedir[255];
00068
00069 struct outgoing {
00070 char fn[256];
00071
00072 int retries;
00073
00074 int maxretries;
00075
00076 int retrytime;
00077
00078 int waittime;
00079
00080 long callingpid;
00081
00082
00083 char tech[256];
00084 char dest[256];
00085
00086
00087 char app[256];
00088 char data[256];
00089
00090
00091 char message[256];
00092 char pdu[256];
00093
00094
00095 char exten[256];
00096 char context[256];
00097 int priority;
00098
00099
00100 char cid_num[256];
00101 char cid_name[256];
00102
00103
00104 char account[AST_MAX_ACCOUNT_CODE];
00105
00106
00107 struct ast_variable *vars;
00108
00109
00110 int maxlen;
00111
00112
00113 struct ast_flags options;
00114 };
00115
00116 static void init_outgoing(struct outgoing *o)
00117 {
00118 memset(o, 0, sizeof(struct outgoing));
00119 o->priority = 1;
00120 o->retrytime = 300;
00121 o->waittime = 45;
00122 ast_set_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE);
00123 }
00124
00125 static void free_outgoing(struct outgoing *o)
00126 {
00127 free(o);
00128 }
00129
00130 static int apply_outgoing(struct outgoing *o, char *fn, FILE *f)
00131 {
00132 char buf[256];
00133 char *c, *c2;
00134 int lineno = 0;
00135 struct ast_variable *var;
00136
00137 while(fgets(buf, sizeof(buf), f)) {
00138 lineno++;
00139
00140 c = buf;
00141 while ((c = strchr(c, '#'))) {
00142 if ((c == buf) || (*(c-1) == ' ') || (*(c-1) == '\t'))
00143 *c = '\0';
00144 else
00145 c++;
00146 }
00147
00148 c = buf;
00149 while ((c = strchr(c, ';'))) {
00150 if ((c > buf) && (c[-1] == '\\')) {
00151 memmove(c - 1, c, strlen(c) + 1);
00152 c++;
00153 } else {
00154 *c = '\0';
00155 break;
00156 }
00157 }
00158
00159
00160 while(!ast_strlen_zero(buf) && buf[strlen(buf) - 1] < 33)
00161 buf[strlen(buf) - 1] = '\0';
00162 if (!ast_strlen_zero(buf)) {
00163 c = strchr(buf, ':');
00164 if (c) {
00165 *c = '\0';
00166 c++;
00167 while ((*c) && (*c < 33))
00168 c++;
00169 #if 0
00170 printf("'%s' is '%s' at line %d\n", buf, c, lineno);
00171 #endif
00172 if (!strcasecmp(buf, "channel")) {
00173 ast_copy_string(o->tech, c, sizeof(o->tech));
00174 if ((c2 = strchr(o->tech, '/'))) {
00175 *c2 = '\0';
00176 c2++;
00177 ast_copy_string(o->dest, c2, sizeof(o->dest));
00178 } else {
00179 ast_log(LOG_NOTICE, "Channel should be in form Tech/Dest at line %d of %s\n", lineno, fn);
00180 o->tech[0] = '\0';
00181 }
00182 } else if (!strcasecmp(buf, "callerid")) {
00183 ast_callerid_split(c, o->cid_name, sizeof(o->cid_name), o->cid_num, sizeof(o->cid_num));
00184 } else if (!strcasecmp(buf, "application")) {
00185 ast_copy_string(o->app, c, sizeof(o->app));
00186 } else if (!strcasecmp(buf, "data")) {
00187 ast_copy_string(o->data, c, sizeof(o->data));
00188 } else if (!strcasecmp(buf, "message")) {
00189 strncpy(o->message, c, sizeof(o->message) - 1);
00190 } else if (!strcasecmp(buf, "pdu")) {
00191 strncpy(o->pdu, c, sizeof(o->pdu) - 1);
00192 } else if (!strcasecmp(buf, "maxretries")) {
00193 if (sscanf(c, "%d", &o->maxretries) != 1) {
00194 ast_log(LOG_WARNING, "Invalid max retries at line %d of %s\n", lineno, fn);
00195 o->maxretries = 0;
00196 }
00197 } else if (!strcasecmp(buf, "context")) {
00198 ast_copy_string(o->context, c, sizeof(o->context));
00199 } else if (!strcasecmp(buf, "extension")) {
00200 ast_copy_string(o->exten, c, sizeof(o->exten));
00201 } else if (!strcasecmp(buf, "priority")) {
00202 if ((sscanf(c, "%d", &o->priority) != 1) || (o->priority < 1)) {
00203 ast_log(LOG_WARNING, "Invalid priority at line %d of %s\n", lineno, fn);
00204 o->priority = 1;
00205 }
00206 } else if (!strcasecmp(buf, "retrytime")) {
00207 if ((sscanf(c, "%d", &o->retrytime) != 1) || (o->retrytime < 1)) {
00208 ast_log(LOG_WARNING, "Invalid retrytime at line %d of %s\n", lineno, fn);
00209 o->retrytime = 300;
00210 }
00211 } else if (!strcasecmp(buf, "waittime")) {
00212 if ((sscanf(c, "%d", &o->waittime) != 1) || (o->waittime < 1)) {
00213 ast_log(LOG_WARNING, "Invalid waittime at line %d of %s\n", lineno, fn);
00214 o->waittime = 45;
00215 }
00216 } else if (!strcasecmp(buf, "retry")) {
00217 o->retries++;
00218 } else if (!strcasecmp(buf, "startretry")) {
00219 if (sscanf(c, "%ld", &o->callingpid) != 1) {
00220 ast_log(LOG_WARNING, "Unable to retrieve calling PID!\n");
00221 o->callingpid = 0;
00222 }
00223 } else if (!strcasecmp(buf, "endretry") || !strcasecmp(buf, "abortretry")) {
00224 o->callingpid = 0;
00225 o->retries++;
00226 } else if (!strcasecmp(buf, "delayedretry")) {
00227 } else if (!strcasecmp(buf, "setvar") || !strcasecmp(buf, "set")) {
00228 c2 = c;
00229 strsep(&c2, "=");
00230 if (c2) {
00231 var = ast_variable_new(c, c2);
00232 if (var) {
00233 var->next = o->vars;
00234 o->vars = var;
00235 }
00236 } else
00237 ast_log(LOG_WARNING, "Malformed \"%s\" argument. Should be \"%s: variable=value\"\n", buf, buf);
00238 } else if (!strcasecmp(buf, "account")) {
00239 ast_copy_string(o->account, c, sizeof(o->account));
00240 } else if (!strcasecmp(buf, "alwaysdelete")) {
00241 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ALWAYS_DELETE);
00242 } else if (!strcasecmp(buf, "archive")) {
00243 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ARCHIVE);
00244 } else {
00245 ast_log(LOG_WARNING, "Unknown keyword '%s' at line %d of %s\n", buf, lineno, fn);
00246 }
00247 } else
00248 ast_log(LOG_NOTICE, "Syntax error at line %d of %s\n", lineno, fn);
00249 }
00250 }
00251 ast_copy_string(o->fn, fn, sizeof(o->fn));
00252 if (ast_strlen_zero(o->tech) || ast_strlen_zero(o->dest) || ((ast_strlen_zero(o->app) && ast_strlen_zero(o->exten) && ast_strlen_zero(o->message) && ast_strlen_zero(o->pdu)))) {
00253 ast_log(LOG_WARNING, "At least one of app or extension (or keyword message/pdu)must be specified, along with tech and dest in file %s\n", fn);
00254 return -1;
00255 }
00256 return 0;
00257 }
00258
00259 static void safe_append(struct outgoing *o, time_t now, char *s)
00260 {
00261 int fd;
00262 FILE *f;
00263 struct utimbuf tbuf;
00264 fd = open(o->fn, O_WRONLY|O_APPEND);
00265 if (fd > -1) {
00266 f = fdopen(fd, "a");
00267 if (f) {
00268 fprintf(f, "\n%s: %ld %d (%ld)\n", s, (long)ast_mainpid, o->retries, (long) now);
00269 fclose(f);
00270 } else
00271 close(fd);
00272
00273 tbuf.actime = now;
00274 tbuf.modtime = now + o->retrytime;
00275 if (utime(o->fn, &tbuf))
00276 ast_log(LOG_WARNING, "Unable to set utime on %s: %s\n", o->fn, strerror(errno));
00277 }
00278 }
00279
00280
00281
00282
00283
00284
00285
00286 static int remove_from_queue(struct outgoing *o, const char *status)
00287 {
00288 int fd;
00289 FILE *f;
00290 char newfn[256];
00291 const char *bname;
00292
00293 if (!ast_test_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE)) {
00294 struct stat current_file_status;
00295
00296 if (!stat(o->fn, ¤t_file_status))
00297 if (time(NULL) < current_file_status.st_mtime)
00298 return 0;
00299 }
00300
00301 if (!ast_test_flag(&o->options, SPOOL_FLAG_ARCHIVE)) {
00302 unlink(o->fn);
00303 return 0;
00304 }
00305 if (mkdir(qdonedir, 0700) && (errno != EEXIST)) {
00306 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool archiving disabled\n", qdonedir);
00307 unlink(o->fn);
00308 return -1;
00309 }
00310 fd = open(o->fn, O_WRONLY|O_APPEND);
00311 if (fd > -1) {
00312 f = fdopen(fd, "a");
00313 if (f) {
00314 fprintf(f, "Status: %s\n", status);
00315 fclose(f);
00316 } else
00317 close(fd);
00318 }
00319
00320 bname = strrchr(o->fn,'/');
00321 if (bname == NULL)
00322 bname = o->fn;
00323 else
00324 bname++;
00325 snprintf(newfn, sizeof(newfn), "%s/%s", qdonedir, bname);
00326
00327 unlink(newfn);
00328 if (rename(o->fn, newfn) != 0) {
00329 unlink(o->fn);
00330 return -1;
00331 } else
00332 return 0;
00333 }
00334
00335 static void *attempt_thread(void *data)
00336 {
00337 struct outgoing *o = data;
00338 int res, reason;
00339 if (!ast_strlen_zero(o->app)) {
00340 if (option_verbose > 2)
00341 ast_verbose(VERBOSE_PREFIX_3 "Attempting call on %s/%s for application %s(%s) (Retry %d)\n", o->tech, o->dest, o->app, o->data, o->retries);
00342 res = ast_pbx_outgoing_app(o->tech, AST_FORMAT_SLINEAR, o->dest, o->waittime * 1000, o->app, o->data, &reason, 2 , o->cid_num, o->cid_name, o->vars, o->account, NULL);
00343 } else if (!ast_strlen_zero(o->message)) {
00344 if (option_verbose > 2)
00345 ast_verbose(VERBOSE_PREFIX_3 "Attempting to send message on %s/%s (Retry %d)\n", o->tech, o->dest, o->retries);
00346 res = ast_send_message(o->tech, o->dest, o->dest, (ast_strlen_zero(o->cid_name) ? o->cid_num : o->cid_name), o->message, 0);
00347 } else if (!ast_strlen_zero(o->pdu)) {
00348 if (option_verbose > 2)
00349 ast_verbose(VERBOSE_PREFIX_3 "Attempting to send message in PDU format on %s/%s (Retry %d)\n", o->tech, o->dest, o->retries);
00350 res = ast_send_message(o->tech, o->dest, o->dest, (ast_strlen_zero(o->cid_name) ? o->cid_num : o->cid_name), o->pdu, 1);
00351 } else {
00352 if (option_verbose > 2)
00353 ast_verbose(VERBOSE_PREFIX_3 "Attempting call on %s/%s for %s@%s:%d (Retry %d)\n", o->tech, o->dest, o->exten, o->context,o->priority, o->retries);
00354 res = ast_pbx_outgoing_exten(o->tech, AST_FORMAT_SLINEAR, o->dest, o->waittime * 1000, o->context, o->exten, o->priority, &reason, 2 , o->cid_num, o->cid_name, o->vars, o->account, NULL);
00355 }
00356 if (res) {
00357 ast_log(LOG_NOTICE, "Call failed to go through, reason (%d) %s\n", reason, ast_channel_reason2str(reason));
00358 if (o->retries >= o->maxretries + 1) {
00359
00360 ast_log(LOG_EVENT, "Queued call to %s/%s expired without completion after %d attempt%s\n", o->tech, o->dest, o->retries - 1, ((o->retries - 1) != 1) ? "s" : "");
00361 remove_from_queue(o, "Expired");
00362 } else {
00363
00364 safe_append(o, time(NULL), "EndRetry");
00365 }
00366 } else {
00367 if (!ast_strlen_zero(o->message)) {
00368 if (option_verbose > 2)
00369 ast_verbose(VERBOSE_PREFIX_2 "Message sent to %s/%s\n", o->tech, o->dest);
00370 } else {
00371 ast_log(LOG_NOTICE, "Call completed to %s/%s\n", o->tech, o->dest);
00372 ast_log(LOG_EVENT, "Queued call to %s/%s completed\n", o->tech, o->dest);
00373 }
00374 remove_from_queue(o, "Completed");
00375 }
00376 free_outgoing(o);
00377 return NULL;
00378 }
00379
00380 static void launch_service(struct outgoing *o)
00381 {
00382 pthread_t t;
00383 pthread_attr_t attr;
00384 int ret;
00385 pthread_attr_init(&attr);
00386 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
00387 if ((ret = ast_pthread_create(&t,&attr,attempt_thread, o)) != 0) {
00388 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
00389 free_outgoing(o);
00390 }
00391 pthread_attr_destroy(&attr);
00392 }
00393
00394 static int scan_service(char *fn, time_t now, time_t atime)
00395 {
00396 struct outgoing *o;
00397 FILE *f;
00398 o = malloc(sizeof(struct outgoing));
00399 if (o) {
00400 init_outgoing(o);
00401 f = fopen(fn, "r+");
00402 if (f) {
00403 if (!apply_outgoing(o, fn, f)) {
00404 #if 0
00405 printf("Filename: %s, Retries: %d, max: %d\n", fn, o->retries, o->maxretries);
00406 #endif
00407 fclose(f);
00408 if (o->retries <= o->maxretries) {
00409 now += o->retrytime;
00410 if (o->callingpid && (o->callingpid == ast_mainpid)) {
00411 safe_append(o, time(NULL), "DelayedRetry");
00412 ast_log(LOG_DEBUG, "Delaying retry since we're currently running '%s'\n", o->fn);
00413 free_outgoing(o);
00414 } else {
00415
00416 o->retries++;
00417
00418
00419 if (o->callingpid)
00420 safe_append(o, time(NULL), "AbortRetry");
00421
00422 safe_append(o, now, "StartRetry");
00423 launch_service(o);
00424 }
00425 return now;
00426 } else {
00427 ast_log(LOG_EVENT, "Queued call to %s/%s expired without completion after %d attempt%s\n", o->tech, o->dest, o->retries - 1, ((o->retries - 1) != 1) ? "s" : "");
00428 free_outgoing(o);
00429 remove_from_queue(o, "Expired");
00430 return 0;
00431 }
00432 } else {
00433 free_outgoing(o);
00434 ast_log(LOG_WARNING, "Invalid file contents in %s, deleting\n", fn);
00435 fclose(f);
00436 remove_from_queue(o, "Failed");
00437 }
00438 } else {
00439 free_outgoing(o);
00440 ast_log(LOG_WARNING, "Unable to open %s: %s, deleting\n", fn, strerror(errno));
00441 remove_from_queue(o, "Failed");
00442 }
00443 } else
00444 ast_log(LOG_WARNING, "Out of memory :(\n");
00445 return -1;
00446 }
00447
00448 static void *scan_thread(void *unused)
00449 {
00450 struct stat st;
00451 DIR *dir;
00452 struct dirent *de;
00453 char fn[256];
00454 int res;
00455 time_t last = 0, next = 0, now;
00456 for(;;) {
00457
00458 sleep(1);
00459 time(&now);
00460 if (!stat(qdir, &st)) {
00461 if ((st.st_mtime != last) || (next && (now > next))) {
00462 #if 0
00463 printf("atime: %ld, mtime: %ld, ctime: %ld\n", st.st_atime, st.st_mtime, st.st_ctime);
00464 printf("Ooh, something changed / timeout\n");
00465 #endif
00466 next = 0;
00467 last = st.st_mtime;
00468 dir = opendir(qdir);
00469 if (dir) {
00470 while((de = readdir(dir))) {
00471 snprintf(fn, sizeof(fn), "%s/%s", qdir, de->d_name);
00472 if (!stat(fn, &st)) {
00473 if (S_ISREG(st.st_mode)) {
00474 if (st.st_mtime <= now) {
00475 res = scan_service(fn, now, st.st_atime);
00476 if (res > 0) {
00477
00478 if (!next || (res < next)) {
00479 next = res;
00480 }
00481 } else if (res)
00482 ast_log(LOG_WARNING, "Failed to scan service '%s'\n", fn);
00483 } else {
00484
00485 if (!next || (st.st_mtime < next))
00486 next = st.st_mtime;
00487 }
00488 }
00489 } else
00490 ast_log(LOG_WARNING, "Unable to stat %s: %s\n", fn, strerror(errno));
00491 }
00492 closedir(dir);
00493 } else
00494 ast_log(LOG_WARNING, "Unable to open directory %s: %s\n", qdir, strerror(errno));
00495 }
00496 } else
00497 ast_log(LOG_WARNING, "Unable to stat %s\n", qdir);
00498 }
00499 return NULL;
00500 }
00501
00502 static int unload_module(void)
00503 {
00504 return -1;
00505 }
00506
00507 static int load_module(void)
00508 {
00509 pthread_t thread;
00510 pthread_attr_t attr;
00511 int ret;
00512 snprintf(qdir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing");
00513 if (mkdir(qdir, 0700) && (errno != EEXIST)) {
00514 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool disabled\n", qdir);
00515 return 0;
00516 }
00517 snprintf(qdonedir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing_done");
00518 pthread_attr_init(&attr);
00519 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
00520 if ((ret = ast_pthread_create_background(&thread,&attr,scan_thread, NULL)) != 0) {
00521 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
00522 return -1;
00523 }
00524 pthread_attr_destroy(&attr);
00525 return 0;
00526 }
00527
00528 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Outgoing Spool Support");