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00025 #include "asterisk.h"
00026
00027 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 134976 $")
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 int format;
00083
00084
00085 char tech[256];
00086 char dest[256];
00087
00088
00089 char app[256];
00090 char data[256];
00091
00092
00093 char exten[256];
00094 char context[256];
00095 int priority;
00096
00097
00098 char cid_num[256];
00099 char cid_name[256];
00100
00101
00102 char account[AST_MAX_ACCOUNT_CODE];
00103
00104
00105 struct ast_variable *vars;
00106
00107
00108 int maxlen;
00109
00110
00111 struct ast_flags options;
00112 };
00113
00114 static void init_outgoing(struct outgoing *o)
00115 {
00116 memset(o, 0, sizeof(struct outgoing));
00117 o->priority = 1;
00118 o->retrytime = 300;
00119 o->waittime = 45;
00120 o->format = AST_FORMAT_SLINEAR;
00121 ast_set_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE);
00122 }
00123
00124 static void free_outgoing(struct outgoing *o)
00125 {
00126 free(o);
00127 }
00128
00129 static int apply_outgoing(struct outgoing *o, char *fn, FILE *f)
00130 {
00131 char buf[256];
00132 char *c, *c2;
00133 int lineno = 0;
00134 struct ast_variable *var, *last = o->vars;
00135
00136 while (last && last->next) {
00137 last = last->next;
00138 }
00139
00140 while(fgets(buf, sizeof(buf), f)) {
00141 lineno++;
00142
00143 c = buf;
00144 while ((c = strchr(c, '#'))) {
00145 if ((c == buf) || (*(c-1) == ' ') || (*(c-1) == '\t'))
00146 *c = '\0';
00147 else
00148 c++;
00149 }
00150
00151 c = buf;
00152 while ((c = strchr(c, ';'))) {
00153 if ((c > buf) && (c[-1] == '\\')) {
00154 memmove(c - 1, c, strlen(c) + 1);
00155 c++;
00156 } else {
00157 *c = '\0';
00158 break;
00159 }
00160 }
00161
00162
00163 while(!ast_strlen_zero(buf) && buf[strlen(buf) - 1] < 33)
00164 buf[strlen(buf) - 1] = '\0';
00165 if (!ast_strlen_zero(buf)) {
00166 c = strchr(buf, ':');
00167 if (c) {
00168 *c = '\0';
00169 c++;
00170 while ((*c) && (*c < 33))
00171 c++;
00172 #if 0
00173 printf("'%s' is '%s' at line %d\n", buf, c, lineno);
00174 #endif
00175 if (!strcasecmp(buf, "channel")) {
00176 ast_copy_string(o->tech, c, sizeof(o->tech));
00177 if ((c2 = strchr(o->tech, '/'))) {
00178 *c2 = '\0';
00179 c2++;
00180 ast_copy_string(o->dest, c2, sizeof(o->dest));
00181 } else {
00182 ast_log(LOG_NOTICE, "Channel should be in form Tech/Dest at line %d of %s\n", lineno, fn);
00183 o->tech[0] = '\0';
00184 }
00185 } else if (!strcasecmp(buf, "callerid")) {
00186 ast_callerid_split(c, o->cid_name, sizeof(o->cid_name), o->cid_num, sizeof(o->cid_num));
00187 } else if (!strcasecmp(buf, "application")) {
00188 ast_copy_string(o->app, c, sizeof(o->app));
00189 } else if (!strcasecmp(buf, "data")) {
00190 ast_copy_string(o->data, c, sizeof(o->data));
00191 } else if (!strcasecmp(buf, "maxretries")) {
00192 if (sscanf(c, "%d", &o->maxretries) != 1) {
00193 ast_log(LOG_WARNING, "Invalid max retries at line %d of %s\n", lineno, fn);
00194 o->maxretries = 0;
00195 }
00196 } else if (!strcasecmp(buf, "codecs")) {
00197 ast_parse_allow_disallow(NULL, &o->format, c, 1);
00198 } else if (!strcasecmp(buf, "context")) {
00199 ast_copy_string(o->context, c, sizeof(o->context));
00200 } else if (!strcasecmp(buf, "extension")) {
00201 ast_copy_string(o->exten, c, sizeof(o->exten));
00202 } else if (!strcasecmp(buf, "priority")) {
00203 if ((sscanf(c, "%d", &o->priority) != 1) || (o->priority < 1)) {
00204 ast_log(LOG_WARNING, "Invalid priority at line %d of %s\n", lineno, fn);
00205 o->priority = 1;
00206 }
00207 } else if (!strcasecmp(buf, "retrytime")) {
00208 if ((sscanf(c, "%d", &o->retrytime) != 1) || (o->retrytime < 1)) {
00209 ast_log(LOG_WARNING, "Invalid retrytime at line %d of %s\n", lineno, fn);
00210 o->retrytime = 300;
00211 }
00212 } else if (!strcasecmp(buf, "waittime")) {
00213 if ((sscanf(c, "%d", &o->waittime) != 1) || (o->waittime < 1)) {
00214 ast_log(LOG_WARNING, "Invalid waittime at line %d of %s\n", lineno, fn);
00215 o->waittime = 45;
00216 }
00217 } else if (!strcasecmp(buf, "retry")) {
00218 o->retries++;
00219 } else if (!strcasecmp(buf, "startretry")) {
00220 if (sscanf(c, "%ld", &o->callingpid) != 1) {
00221 ast_log(LOG_WARNING, "Unable to retrieve calling PID!\n");
00222 o->callingpid = 0;
00223 }
00224 } else if (!strcasecmp(buf, "endretry") || !strcasecmp(buf, "abortretry")) {
00225 o->callingpid = 0;
00226 o->retries++;
00227 } else if (!strcasecmp(buf, "delayedretry")) {
00228 } else if (!strcasecmp(buf, "setvar") || !strcasecmp(buf, "set")) {
00229 c2 = c;
00230 strsep(&c2, "=");
00231 if (c2) {
00232 var = ast_variable_new(c, c2);
00233 if (var) {
00234
00235 if (last) {
00236 last->next = var;
00237 } else {
00238 o->vars = var;
00239 }
00240 last = var;
00241 }
00242 } else
00243 ast_log(LOG_WARNING, "Malformed \"%s\" argument. Should be \"%s: variable=value\"\n", buf, buf);
00244 } else if (!strcasecmp(buf, "account")) {
00245 ast_copy_string(o->account, c, sizeof(o->account));
00246 } else if (!strcasecmp(buf, "alwaysdelete")) {
00247 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ALWAYS_DELETE);
00248 } else if (!strcasecmp(buf, "archive")) {
00249 ast_set2_flag(&o->options, ast_true(c), SPOOL_FLAG_ARCHIVE);
00250 } else {
00251 ast_log(LOG_WARNING, "Unknown keyword '%s' at line %d of %s\n", buf, lineno, fn);
00252 }
00253 } else
00254 ast_log(LOG_NOTICE, "Syntax error at line %d of %s\n", lineno, fn);
00255 }
00256 }
00257 ast_copy_string(o->fn, fn, sizeof(o->fn));
00258 if (ast_strlen_zero(o->tech) || ast_strlen_zero(o->dest) || (ast_strlen_zero(o->app) && ast_strlen_zero(o->exten))) {
00259 ast_log(LOG_WARNING, "At least one of app or extension must be specified, along with tech and dest in file %s\n", fn);
00260 return -1;
00261 }
00262 return 0;
00263 }
00264
00265 static void safe_append(struct outgoing *o, time_t now, char *s)
00266 {
00267 int fd;
00268 FILE *f;
00269 struct utimbuf tbuf;
00270 fd = open(o->fn, O_WRONLY|O_APPEND);
00271 if (fd > -1) {
00272 f = fdopen(fd, "a");
00273 if (f) {
00274 fprintf(f, "\n%s: %ld %d (%ld)\n", s, (long)ast_mainpid, o->retries, (long) now);
00275 fclose(f);
00276 } else
00277 close(fd);
00278
00279 tbuf.actime = now;
00280 tbuf.modtime = now + o->retrytime;
00281 if (utime(o->fn, &tbuf))
00282 ast_log(LOG_WARNING, "Unable to set utime on %s: %s\n", o->fn, strerror(errno));
00283 }
00284 }
00285
00286
00287
00288
00289
00290
00291
00292 static int remove_from_queue(struct outgoing *o, const char *status)
00293 {
00294 int fd;
00295 FILE *f;
00296 char newfn[256];
00297 const char *bname;
00298
00299 if (!ast_test_flag(&o->options, SPOOL_FLAG_ALWAYS_DELETE)) {
00300 struct stat current_file_status;
00301
00302 if (!stat(o->fn, ¤t_file_status))
00303 if (time(NULL) < current_file_status.st_mtime)
00304 return 0;
00305 }
00306
00307 if (!ast_test_flag(&o->options, SPOOL_FLAG_ARCHIVE)) {
00308 unlink(o->fn);
00309 return 0;
00310 }
00311 if (mkdir(qdonedir, 0700) && (errno != EEXIST)) {
00312 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool archiving disabled\n", qdonedir);
00313 unlink(o->fn);
00314 return -1;
00315 }
00316 fd = open(o->fn, O_WRONLY|O_APPEND);
00317 if (fd > -1) {
00318 f = fdopen(fd, "a");
00319 if (f) {
00320 fprintf(f, "Status: %s\n", status);
00321 fclose(f);
00322 } else
00323 close(fd);
00324 }
00325
00326 bname = strrchr(o->fn,'/');
00327 if (bname == NULL)
00328 bname = o->fn;
00329 else
00330 bname++;
00331 snprintf(newfn, sizeof(newfn), "%s/%s", qdonedir, bname);
00332
00333 unlink(newfn);
00334 if (rename(o->fn, newfn) != 0) {
00335 unlink(o->fn);
00336 return -1;
00337 } else
00338 return 0;
00339 }
00340
00341 static void *attempt_thread(void *data)
00342 {
00343 struct outgoing *o = data;
00344 int res, reason;
00345 if (!ast_strlen_zero(o->app)) {
00346 if (option_verbose > 2)
00347 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);
00348 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);
00349 } else {
00350 if (option_verbose > 2)
00351 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);
00352 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);
00353 }
00354 if (res) {
00355 ast_log(LOG_NOTICE, "Call failed to go through, reason (%d) %s\n", reason, ast_channel_reason2str(reason));
00356 if (o->retries >= o->maxretries + 1) {
00357
00358 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" : "");
00359 remove_from_queue(o, "Expired");
00360 } else {
00361
00362 safe_append(o, time(NULL), "EndRetry");
00363 }
00364 } else {
00365 ast_log(LOG_NOTICE, "Call completed to %s/%s\n", o->tech, o->dest);
00366 ast_log(LOG_EVENT, "Queued call to %s/%s completed\n", o->tech, o->dest);
00367 remove_from_queue(o, "Completed");
00368 }
00369 free_outgoing(o);
00370 return NULL;
00371 }
00372
00373 static void launch_service(struct outgoing *o)
00374 {
00375 pthread_t t;
00376 pthread_attr_t attr;
00377 int ret;
00378 pthread_attr_init(&attr);
00379 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
00380 if ((ret = ast_pthread_create(&t,&attr,attempt_thread, o)) != 0) {
00381 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
00382 free_outgoing(o);
00383 }
00384 pthread_attr_destroy(&attr);
00385 }
00386
00387 static int scan_service(char *fn, time_t now, time_t atime)
00388 {
00389 struct outgoing *o;
00390 FILE *f;
00391 o = malloc(sizeof(struct outgoing));
00392 if (o) {
00393 init_outgoing(o);
00394 f = fopen(fn, "r+");
00395 if (f) {
00396 if (!apply_outgoing(o, fn, f)) {
00397 #if 0
00398 printf("Filename: %s, Retries: %d, max: %d\n", fn, o->retries, o->maxretries);
00399 #endif
00400 fclose(f);
00401 if (o->retries <= o->maxretries) {
00402 now += o->retrytime;
00403 if (o->callingpid && (o->callingpid == ast_mainpid)) {
00404 safe_append(o, time(NULL), "DelayedRetry");
00405 ast_log(LOG_DEBUG, "Delaying retry since we're currently running '%s'\n", o->fn);
00406 free_outgoing(o);
00407 } else {
00408
00409 o->retries++;
00410
00411
00412 if (o->callingpid)
00413 safe_append(o, time(NULL), "AbortRetry");
00414
00415 safe_append(o, now, "StartRetry");
00416 launch_service(o);
00417 }
00418 return now;
00419 } else {
00420 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" : "");
00421 free_outgoing(o);
00422 remove_from_queue(o, "Expired");
00423 return 0;
00424 }
00425 } else {
00426 free_outgoing(o);
00427 ast_log(LOG_WARNING, "Invalid file contents in %s, deleting\n", fn);
00428 fclose(f);
00429 remove_from_queue(o, "Failed");
00430 }
00431 } else {
00432 free_outgoing(o);
00433 ast_log(LOG_WARNING, "Unable to open %s: %s, deleting\n", fn, strerror(errno));
00434 remove_from_queue(o, "Failed");
00435 }
00436 } else
00437 ast_log(LOG_WARNING, "Out of memory :(\n");
00438 return -1;
00439 }
00440
00441 static void *scan_thread(void *unused)
00442 {
00443 struct stat st;
00444 DIR *dir;
00445 struct dirent *de;
00446 char fn[256];
00447 int res;
00448 time_t last = 0, next = 0, now;
00449 for(;;) {
00450
00451 sleep(1);
00452 time(&now);
00453 if (!stat(qdir, &st)) {
00454 if ((st.st_mtime != last) || (next && (now > next))) {
00455 #if 0
00456 printf("atime: %ld, mtime: %ld, ctime: %ld\n", st.st_atime, st.st_mtime, st.st_ctime);
00457 printf("Ooh, something changed / timeout\n");
00458 #endif
00459 next = 0;
00460 last = st.st_mtime;
00461 dir = opendir(qdir);
00462 if (dir) {
00463 while((de = readdir(dir))) {
00464 snprintf(fn, sizeof(fn), "%s/%s", qdir, de->d_name);
00465 if (!stat(fn, &st)) {
00466 if (S_ISREG(st.st_mode)) {
00467 if (st.st_mtime <= now) {
00468 res = scan_service(fn, now, st.st_atime);
00469 if (res > 0) {
00470
00471 if (!next || (res < next)) {
00472 next = res;
00473 }
00474 } else if (res)
00475 ast_log(LOG_WARNING, "Failed to scan service '%s'\n", fn);
00476 } else {
00477
00478 if (!next || (st.st_mtime < next))
00479 next = st.st_mtime;
00480 }
00481 }
00482 } else
00483 ast_log(LOG_WARNING, "Unable to stat %s: %s\n", fn, strerror(errno));
00484 }
00485 closedir(dir);
00486 } else
00487 ast_log(LOG_WARNING, "Unable to open directory %s: %s\n", qdir, strerror(errno));
00488 }
00489 } else
00490 ast_log(LOG_WARNING, "Unable to stat %s\n", qdir);
00491 }
00492 return NULL;
00493 }
00494
00495 static int unload_module(void)
00496 {
00497 return -1;
00498 }
00499
00500 static int load_module(void)
00501 {
00502 pthread_t thread;
00503 pthread_attr_t attr;
00504 int ret;
00505 snprintf(qdir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing");
00506 if (mkdir(qdir, 0700) && (errno != EEXIST)) {
00507 ast_log(LOG_WARNING, "Unable to create queue directory %s -- outgoing spool disabled\n", qdir);
00508 return 0;
00509 }
00510 snprintf(qdonedir, sizeof(qdir), "%s/%s", ast_config_AST_SPOOL_DIR, "outgoing_done");
00511 pthread_attr_init(&attr);
00512 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
00513 if ((ret = ast_pthread_create_background(&thread,&attr,scan_thread, NULL)) != 0) {
00514 ast_log(LOG_WARNING, "Unable to create thread :( (returned error: %d)\n", ret);
00515 return -1;
00516 }
00517 pthread_attr_destroy(&attr);
00518 return 0;
00519 }
00520
00521 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Outgoing Spool Support");