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00027 #include "asterisk.h"
00028
00029 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 281723 $")
00030
00031 #include "asterisk/file.h"
00032 #include "asterisk/pbx.h"
00033 #include "asterisk/app.h"
00034 #include "asterisk/module.h"
00035 #include "asterisk/indications.h"
00036 #include "asterisk/channel.h"
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00115 enum readexten_option_flags {
00116 OPT_SKIP = (1 << 0),
00117 OPT_INDICATION = (1 << 1),
00118 OPT_NOANSWER = (1 << 2),
00119 };
00120
00121 AST_APP_OPTIONS(readexten_app_options, {
00122 AST_APP_OPTION('s', OPT_SKIP),
00123 AST_APP_OPTION('i', OPT_INDICATION),
00124 AST_APP_OPTION('n', OPT_NOANSWER),
00125 });
00126
00127 static char *app = "ReadExten";
00128
00129 static int readexten_exec(struct ast_channel *chan, const char *data)
00130 {
00131 int res = 0;
00132 char exten[256] = "";
00133 int maxdigits = sizeof(exten) - 1;
00134 int timeout = 0, digit_timeout = 0, x = 0;
00135 char *argcopy = NULL, *status = "";
00136 struct ast_tone_zone_sound *ts = NULL;
00137 struct ast_flags flags = {0};
00138
00139 AST_DECLARE_APP_ARGS(arglist,
00140 AST_APP_ARG(variable);
00141 AST_APP_ARG(filename);
00142 AST_APP_ARG(context);
00143 AST_APP_ARG(options);
00144 AST_APP_ARG(timeout);
00145 );
00146
00147 if (ast_strlen_zero(data)) {
00148 ast_log(LOG_WARNING, "ReadExten requires at least one argument\n");
00149 pbx_builtin_setvar_helper(chan, "READEXTENSTATUS", "ERROR");
00150 return 0;
00151 }
00152
00153 argcopy = ast_strdupa(data);
00154 AST_STANDARD_APP_ARGS(arglist, argcopy);
00155
00156 if (ast_strlen_zero(arglist.variable)) {
00157 ast_log(LOG_WARNING, "Usage: ReadExten(variable[,filename[,context[,options[,timeout]]]])\n");
00158 pbx_builtin_setvar_helper(chan, "READEXTENSTATUS", "ERROR");
00159 return 0;
00160 }
00161
00162 if (ast_strlen_zero(arglist.filename))
00163 arglist.filename = NULL;
00164
00165 if (ast_strlen_zero(arglist.context))
00166 arglist.context = chan->context;
00167
00168 if (!ast_strlen_zero(arglist.options))
00169 ast_app_parse_options(readexten_app_options, &flags, NULL, arglist.options);
00170
00171 if (!ast_strlen_zero(arglist.timeout)) {
00172 timeout = atoi(arglist.timeout);
00173 if (timeout > 0)
00174 timeout *= 1000;
00175 }
00176
00177 if (timeout <= 0)
00178 timeout = chan->pbx ? chan->pbx->rtimeoutms : 10000;
00179
00180 if (digit_timeout <= 0)
00181 digit_timeout = chan->pbx ? chan->pbx->dtimeoutms : 5000;
00182
00183 if (ast_test_flag(&flags, OPT_INDICATION) && !ast_strlen_zero(arglist.filename)) {
00184 ts = ast_get_indication_tone(chan->zone, arglist.filename);
00185 }
00186
00187 do {
00188 if (chan->_state != AST_STATE_UP) {
00189 if (ast_test_flag(&flags, OPT_SKIP)) {
00190
00191 pbx_builtin_setvar_helper(chan, arglist.variable, "");
00192 status = "SKIP";
00193 break;
00194 } else if (!ast_test_flag(&flags, OPT_NOANSWER)) {
00195
00196 res = ast_answer(chan);
00197 }
00198 }
00199
00200 if (res < 0) {
00201 status = "HANGUP";
00202 break;
00203 }
00204
00205 ast_playtones_stop(chan);
00206 ast_stopstream(chan);
00207
00208 if (ts && ts->data[0]) {
00209 res = ast_playtones_start(chan, 0, ts->data, 0);
00210 } else if (arglist.filename) {
00211 if (ast_test_flag(&flags, OPT_INDICATION) && ast_fileexists(arglist.filename, NULL, chan->language) <= 0) {
00212
00213
00214
00215
00216
00217
00218 res = ast_playtones_start(chan, 0, arglist.filename, 0);
00219 } else {
00220 res = ast_streamfile(chan, arglist.filename, chan->language);
00221 }
00222 }
00223
00224 for (x = 0; x < maxdigits; x++) {
00225 ast_debug(3, "extension so far: '%s', timeout: %d\n", exten, timeout);
00226 res = ast_waitfordigit(chan, timeout);
00227
00228 ast_playtones_stop(chan);
00229 ast_stopstream(chan);
00230 timeout = digit_timeout;
00231
00232 if (res < 1) {
00233 if (ast_check_hangup(chan)) {
00234 status = "HANGUP";
00235 } else if (x == 0) {
00236 pbx_builtin_setvar_helper(chan, arglist.variable, "t");
00237 status = "TIMEOUT";
00238 }
00239 break;
00240 }
00241
00242 exten[x] = res;
00243 if (!ast_matchmore_extension(chan, arglist.context, exten, 1 ,
00244 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL))) {
00245 if (!ast_exists_extension(chan, arglist.context, exten, 1,
00246 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL))
00247 && res == '#') {
00248 exten[x] = '\0';
00249 }
00250 break;
00251 }
00252 }
00253
00254 if (!ast_strlen_zero(status))
00255 break;
00256
00257 if (ast_exists_extension(chan, arglist.context, exten, 1,
00258 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL))) {
00259 ast_debug(3, "User entered valid extension '%s'\n", exten);
00260 pbx_builtin_setvar_helper(chan, arglist.variable, exten);
00261 status = "OK";
00262 } else {
00263 ast_debug(3, "User dialed invalid extension '%s' in context '%s' on %s\n", exten, arglist.context, chan->name);
00264 pbx_builtin_setvar_helper(chan, arglist.variable, "i");
00265 pbx_builtin_setvar_helper(chan, "INVALID_EXTEN", exten);
00266 status = "INVALID";
00267 }
00268 } while (0);
00269
00270 if (ts) {
00271 ts = ast_tone_zone_sound_unref(ts);
00272 }
00273
00274 pbx_builtin_setvar_helper(chan, "READEXTENSTATUS", status);
00275
00276 return status[0] == 'H' ? -1 : 0;
00277 }
00278
00279 static int acf_isexten_exec(struct ast_channel *chan, const char *cmd, char *parse, char *buffer, size_t buflen)
00280 {
00281 int priority_int;
00282 AST_DECLARE_APP_ARGS(args,
00283 AST_APP_ARG(context);
00284 AST_APP_ARG(extension);
00285 AST_APP_ARG(priority);
00286 );
00287
00288 AST_STANDARD_APP_ARGS(args, parse);
00289
00290 if (ast_strlen_zero(args.context))
00291 args.context = chan->context;
00292
00293 if (ast_strlen_zero(args.extension)) {
00294 ast_log(LOG_WARNING, "Syntax: VALID_EXTEN([<context>],<extension>[,<priority>]) - missing argument <extension>!\n");
00295 return -1;
00296 }
00297
00298 if (ast_strlen_zero(args.priority))
00299 priority_int = 1;
00300 else
00301 priority_int = atoi(args.priority);
00302
00303 if (ast_exists_extension(chan, args.context, args.extension, priority_int,
00304 S_COR(chan->caller.id.number.valid, chan->caller.id.number.str, NULL))) {
00305 ast_copy_string(buffer, "1", buflen);
00306 } else {
00307 ast_copy_string(buffer, "0", buflen);
00308 }
00309
00310 return 0;
00311 }
00312
00313 static struct ast_custom_function acf_isexten = {
00314 .name = "VALID_EXTEN",
00315 .read = acf_isexten_exec,
00316 };
00317
00318 static int unload_module(void)
00319 {
00320 int res = ast_unregister_application(app);
00321 res |= ast_custom_function_unregister(&acf_isexten);
00322
00323 return res;
00324 }
00325
00326 static int load_module(void)
00327 {
00328 int res = ast_register_application_xml(app, readexten_exec);
00329 res |= ast_custom_function_register(&acf_isexten);
00330 return res;
00331 }
00332
00333 AST_MODULE_INFO_STANDARD(ASTERISK_GPL_KEY, "Read and evaluate extension validity");