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00025 #include "asterisk.h"
00026
00027 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 160560 $")
00028
00029 #include <sys/stat.h>
00030 #include <time.h>
00031 #include <utime.h>
00032 #include <dirent.h>
00033
00034 #include "asterisk/paths.h"
00035 #include "asterisk/lock.h"
00036 #include "asterisk/file.h"
00037 #include "asterisk/logger.h"
00038 #include "asterisk/channel.h"
00039 #include "asterisk/callerid.h"
00040 #include "asterisk/pbx.h"
00041 #include "asterisk/module.h"
00042 #include "asterisk/utils.h"
00043 #include "asterisk/options.h"
00044
00045
00046
00047
00048
00049
00050 enum {
00051
00052
00053
00054
00055 SPOOL_FLAG_ALWAYS_DELETE = (1 << 0),
00056
00057 SPOOL_FLAG_ARCHIVE = (1 << 1)
00058 };
00059
00060 static char qdir[255];
00061 static char qdonedir[255];
00062
00063 struct outgoing {
00064 char fn[256];
00065
00066 int retries;
00067
00068 int maxretries;
00069
00070 int retrytime;
00071
00072 int waittime;
00073
00074 long callingpid;
00075
00076 int format;
00077
00078
00079 char tech[256];
00080 char dest[256];
00081
00082
00083 char app[256];
00084 char data[256];
00085
00086
00087 char exten[AST_MAX_EXTENSION];
00088 char context[AST_MAX_CONTEXT];
00089 int priority;
00090
00091
00092 char cid_num[256];
00093 char cid_name[256];
00094
00095
00096 char account[AST_MAX_ACCOUNT_CODE];
00097
00098
00099 struct ast_variable *vars;
00100
00101
00102 int maxlen;
00103
00104
00105 struct ast_flags options;
00106 };
00107
00108 static void init_outgoing(struct outgoing *o)
00109 {
00110 o->priority = 1;
00111 o->retrytime = 300;
00112 o->waittime = 45;
00113 o->format = AST_FORMAT_SLINEAR;
00114 ast_set_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE);
00115 }
00116
00117 static void free_outgoing(struct outgoing *o)
00118 {
00119 ast_free(o);
00120 }
00121
00122 static int apply_outgoing(struct outgoing *o, char *fn, FILE *f)
00123 {
00124 char buf[256];
00125 char *c, *c2;
00126 int lineno = 0;
00127 struct ast_variable *var, *last = o->vars;
00128
00129 while (last && last->next) {
00130 last = last->next;
00131 }
00132
00133 while(fgets(buf, sizeof(buf), f)) {
00134 lineno++;
00135
00136 c = buf;
00137 while ((c = strchr(c, '#'))) {
00138 if ((c == buf) || (*(c-1) == ' ') || (*(c-1) == '\t'))
00139 *c = '\0';
00140 else
00141 c++;
00142 }
00143
00144 c = buf;
00145 while ((c = strchr(c, ';'))) {
00146 if ((c > buf) && (c[-1] == '\\')) {
00147 memmove(c - 1, c, strlen(c) + 1);
00148 c++;
00149 } else {
00150 *c = '\0';
00151 break;
00152 }
00153 }
00154
00155
00156 while(!ast_strlen_zero(buf) && buf[strlen(buf) - 1] < 33)
00157 buf[strlen(buf) - 1] = '\0';
00158 if (!ast_strlen_zero(buf)) {
00159 c = strchr(buf, ':');
00160 if (c) {
00161 *c = '\0';
00162 c++;
00163 while ((*c) && (*c < 33))
00164 c++;
00165 #if 0
00166 printf("'%s' is '%s' at line %d\n", buf, c, lineno);
00167 #endif
00168 if (!strcasecmp(buf, "channel")) {
00169 ast_copy_string(o->tech, c, sizeof(o->tech));
00170 if ((c2 = strchr(o->tech, '/'))) {
00171 *c2 = '\0';
00172 c2++;
00173 ast_copy_string(o->dest, c2, sizeof(o->dest));
00174 } else {
00175 ast_log(LOG_NOTICE, "Channel should be in form Tech/Dest at line %d of %s\n", lineno, fn);
00176 o->tech[0] = '\0';
00177 }
00178 } else if (!strcasecmp(buf, "callerid")) {
00179 ast_callerid_split(c, o->cid_name, sizeof(o->cid_name), o->cid_num, sizeof(o->cid_num));
00180 } else if (!strcasecmp(buf, "application")) {
00181 ast_copy_string(o->app, c, sizeof(o->app));
00182 } else if (!strcasecmp(buf, "data")) {
00183 ast_copy_string(o->data, c, sizeof(o->data));
00184 } else if (!strcasecmp(buf, "maxretries")) {
00185 if (sscanf(c, "%d", &o->maxretries) != 1) {
00186 ast_log(LOG_WARNING, "Invalid max retries at line %d of %s\n", lineno, fn);
00187 o->maxretries = 0;
00188 }
00189 } else if (!strcasecmp(buf, "codecs")) {
00190 ast_parse_allow_disallow(NULL, &o->format, c, 1);
00191 } else if (!strcasecmp(buf, "context")) {
00192 ast_copy_string(o->context, c, sizeof(o->context));
00193 } else if (!strcasecmp(buf, "extension")) {
00194 ast_copy_string(o->exten, c, sizeof(o->exten));
00195 } else if (!strcasecmp(buf, "priority")) {
00196 if ((sscanf(c, "%d", &o->priority) != 1) || (o->priority < 1)) {
00197 ast_log(LOG_WARNING, "Invalid priority at line %d of %s\n", lineno, fn);
00198 o->priority = 1;
00199 }
00200 } else if (!strcasecmp(buf, "retrytime")) {
00201 if ((sscanf(c, "%d", &o->retrytime) != 1) || (o->retrytime < 1)) {
00202 ast_log(LOG_WARNING, "Invalid retrytime at line %d of %s\n", lineno, fn);
00203 o->retrytime = 300;
00204 }
00205 } else if (!strcasecmp(buf, "waittime")) {
00206 if ((sscanf(c, "%d", &o->waittime) != 1) || (o->waittime < 1)) {
00207 ast_log(LOG_WARNING, "Invalid waittime at line %d of %s\n", lineno, fn);
00208 o->waittime = 45;
00209 }
00210 } else if (!strcasecmp(buf, "retry")) {
00211 o->retries++;
00212 } else if (!strcasecmp(buf, "startretry")) {
00213 if (sscanf(c, "%ld", &o->callingpid) != 1) {
00214 ast_log(LOG_WARNING, "Unable to retrieve calling PID!\n");
00215 o->callingpid = 0;
00216 }
00217 } else if (!strcasecmp(buf, "endretry") || !strcasecmp(buf, "abortretry")) {
00218 o->callingpid = 0;
00219 o->retries++;
00220 } else if (!strcasecmp(buf, "delayedretry")) {
00221 } else if (!strcasecmp(buf, "setvar") || !strcasecmp(buf, "set")) {
00222 c2 = c;
00223 strsep(&c2, "=");
00224 if (c2) {
00225 var = ast_variable_new(c, c2, fn);
00226 if (var) {
00227
00228 if (last) {
00229 last->next = var;
00230 } else {
00231 o->vars = var;
00232 }
00233 last = var;
00234 }
00235 } else
00236 ast_log(LOG_WARNING, "Malformed \"%s\" argument. Should be \"%s: variable=value\"\n", buf, buf);
00237 } else if (!strcasecmp(buf, "account")) {
00238 ast_copy_string(o->account, c, sizeof(o->account));
00239 } else if (!strcasecmp(buf, "alwaysdelete")) {
00240 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ALWAYS_DELETE);
00241 } else if (!strcasecmp(buf, "archive")) {
00242 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ARCHIVE);
00243 } else {
00244 ast_log(LOG_WARNING, "Unknown keyword '%s' at line %d of %s\n", buf, lineno, fn);
00245 }
00246 } else
00247 ast_log(LOG_NOTICE, "Syntax error at line %d of %s\n", lineno, fn);
00248 }
00249 }
00250 ast_copy_string(o->fn, fn, sizeof(o->fn));
00251 if (ast_strlen_zero(o->tech) || ast_strlen_zero(o->dest) || (ast_strlen_zero(o->app) && ast_strlen_zero(o->exten))) {
00252 ast_log(LOG_WARNING, "At least one of app or extension must be specified, along with tech and dest in file %s\n", fn);
00253 return -1;
00254 }
00255 return 0;
00256 }
00257
00258 static void safe_append(struct outgoing *o, time_t now, char *s)
00259 {
00260 int fd;
00261 FILE *f;
00262 struct utimbuf tbuf;
00263
00264 if ((fd = open(o->fn, O_WRONLY | O_APPEND)) < 0)
00265 return;
00266
00267 if ((f = fdopen(fd, "a"))) {
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
00274 tbuf.actime = now;
00275 tbuf.modtime = now + o->retrytime;
00276 if (utime(o->fn, &tbuf))
00277 ast_log(LOG_WARNING, "Unable to set utime on %s: %s\n", o->fn, strerror(errno));
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
00302 if (!ast_test_flag(&o->options, SPOOL_FLAG_ARCHIVE)) {
00303 unlink(o->fn);
00304 return 0;
00305 }
00306
00307 if (ast_mkdir(qdonedir, 0777)) {
00308 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool archiving disabled\n", qdonedir);
00309 unlink(o->fn);
00310 return -1;
00311 }
00312
00313 if ((fd = open(o->fn, O_WRONLY | O_APPEND))) {
00314 if ((f = fdopen(fd, "a"))) {
00315 fprintf(f, "Status: %s\n", status);
00316 fclose(f);
00317 } else
00318 close(fd);
00319 }
00320
00321 if (!(bname = strrchr(o->fn, '/')))
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 ast_verb(3, "Attempting call on %s/%s for application %s(%s) (Retry %d)\n", o->tech, o->dest, o->app, o->data, o->retries);
00341 res = ast_pbx_outgoing_app(o->tech, o->format, o->dest, o->waittime * 1000, o->app, o->data, &reason, 2 , o->cid_num, o->cid_name, o->vars, o->account, NULL);
00342 } else {
00343 ast_verb(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);
00344 res = ast_pbx_outgoing_exten(o->tech, o->format, o->dest, o->waittime * 1000, o->context, o->exten, o->priority, &reason, 2 , o->cid_num, o->cid_name, o->vars, o->account, NULL);
00345 }
00346 if (res) {
00347 ast_log(LOG_NOTICE, "Call failed to go through, reason (%d) %s\n", reason, ast_channel_reason2str(reason));
00348 if (o->retries >= o->maxretries + 1) {
00349
00350 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" : "");
00351 remove_from_queue(o, "Expired");
00352 } else {
00353
00354 safe_append(o, time(NULL), "EndRetry");
00355 }
00356 } else {
00357 ast_log(LOG_NOTICE, "Call completed to %s/%s\n", o->tech, o->dest);
00358 ast_log(LOG_EVENT, "Queued call to %s/%s completed\n", o->tech, o->dest);
00359 remove_from_queue(o, "Completed");
00360 }
00361 free_outgoing(o);
00362 return NULL;
00363 }
00364
00365 static void launch_service(struct outgoing *o)
00366 {
00367 pthread_t t;
00368 int ret;
00369
00370 if ((ret = ast_pthread_create_detached(&t, NULL, attempt_thread, o))) {
00371 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
00372 free_outgoing(o);
00373 }
00374 }
00375
00376 static int scan_service(char *fn, time_t now, time_t atime)
00377 {
00378 struct outgoing *o = NULL;
00379 FILE *f;
00380 int res = 0;
00381
00382 if (!(o = ast_calloc(1, sizeof(*o)))) {
00383 ast_log(LOG_WARNING, "Out of memory ;(\n");
00384 return -1;
00385 }
00386
00387 init_outgoing(o);
00388
00389
00390 if (!(f = fopen(fn, "r+"))) {
00391 remove_from_queue(o, "Failed");
00392 free_outgoing(o);
00393 ast_log(LOG_WARNING, "Unable to open %s: %s, deleting\n", fn, strerror(errno));
00394 return -1;
00395 }
00396
00397
00398 if (apply_outgoing(o, fn, f)) {
00399 remove_from_queue(o, "Failed");
00400 free_outgoing(o);
00401 ast_log(LOG_WARNING, "Invalid file contents in %s, deleting\n", fn);
00402 fclose(f);
00403 return -1;
00404 }
00405
00406 #if 0
00407 printf("Filename: %s, Retries: %d, max: %d\n", fn, o->retries, o->maxretries);
00408 #endif
00409 fclose(f);
00410 if (o->retries <= o->maxretries) {
00411 now += o->retrytime;
00412 if (o->callingpid && (o->callingpid == ast_mainpid)) {
00413 safe_append(o, time(NULL), "DelayedRetry");
00414 ast_log(LOG_DEBUG, "Delaying retry since we're currently running '%s'\n", o->fn);
00415 free_outgoing(o);
00416 } else {
00417
00418 o->retries++;
00419
00420
00421 if (o->callingpid)
00422 safe_append(o, time(NULL), "AbortRetry");
00423
00424 safe_append(o, now, "StartRetry");
00425 launch_service(o);
00426 }
00427 res = now;
00428 } else {
00429 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" : "");
00430 remove_from_queue(o, "Expired");
00431 free_outgoing(o);
00432 }
00433
00434 return res;
00435 }
00436
00437 static void *scan_thread(void *unused)
00438 {
00439 struct stat st;
00440 DIR *dir;
00441 struct dirent *de;
00442 char fn[256];
00443 int res;
00444 time_t last = 0, next = 0, now;
00445 struct timespec ts = { .tv_sec = 1 };
00446
00447 while (!ast_fully_booted) {
00448 nanosleep(&ts, NULL);
00449 }
00450
00451 for(;;) {
00452
00453 nanosleep(&ts, NULL);
00454 time(&now);
00455
00456 if (stat(qdir, &st)) {
00457 ast_log(LOG_WARNING, "Unable to stat %s\n", qdir);
00458 continue;
00459 }
00460
00461
00462 if ((st.st_mtime == last) && (next && (next > now)))
00463 continue;
00464
00465 #if 0
00466 printf("atime: %ld, mtime: %ld, ctime: %ld\n", st.st_atime, st.st_mtime, st.st_ctime);
00467 printf("Ooh, something changed / timeout\n");
00468 #endif
00469 next = 0;
00470 last = st.st_mtime;
00471
00472 if (!(dir = opendir(qdir))) {
00473 ast_log(LOG_WARNING, "Unable to open directory %s: %s\n", qdir, strerror(errno));
00474 continue;
00475 }
00476
00477 while ((de = readdir(dir))) {
00478 snprintf(fn, sizeof(fn), "%s/%s", qdir, de->d_name);
00479 if (stat(fn, &st)) {
00480 ast_log(LOG_WARNING, "Unable to stat %s: %s\n", fn, strerror(errno));
00481 continue;
00482 }
00483 if (!S_ISREG(st.st_mode))
00484 continue;
00485 if (st.st_mtime <= now) {
00486 res = scan_service(fn, now, st.st_atime);
00487 if (res > 0) {
00488
00489 if (!next || (res < next)) {
00490 next = res;
00491 }
00492 } else if (res) {
00493 ast_log(LOG_WARNING, "Failed to scan service '%s'\n", fn);
00494 } else if (!next) {
00495
00496 next = st.st_mtime;
00497 }
00498 } else {
00499
00500 if (!next || (st.st_mtime < next))
00501 next = st.st_mtime;
00502 }
00503 }
00504 closedir(dir);
00505 }
00506 return NULL;
00507 }
00508
00509 static int unload_module(void)
00510 {
00511 return -1;
00512 }
00513
00514 static int load_module(void)
00515 {
00516 pthread_t thread;
00517 int ret;
00518 snprintf(qdir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing");
00519 if (ast_mkdir(qdir, 0777)) {
00520 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool disabled\n", qdir);
00521 return AST_MODULE_LOAD_DECLINE;
00522 }
00523 snprintf(qdonedir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing_done");
00524
00525 if ((ret = ast_pthread_create_detached_background(&thread, NULL, scan_thread, NULL))) {
00526 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
00527 return AST_MODULE_LOAD_FAILURE;
00528 }
00529
00530 return AST_MODULE_LOAD_SUCCESS;
00531 }
00532
00533 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Outgoing Spool Support");