400 lines
8.9 KiB
PHP
Executable File
400 lines
8.9 KiB
PHP
Executable File
#!/usr/bin/php -q
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<?
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/* Simple voicemail manipulation for the Yate PHP interface
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To use add in regexroute.conf
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^NNN$=external/nodata/voicemail.php
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where NNN is the number you want to assign to handle voicemail
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*/
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require_once("libyate.php");
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require_once("libvoicemail.php");
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/* Always the first action to do */
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Yate::Init();
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/* Install handlers for the wave end and dtmf notify messages */
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Yate::Install("chan.dtmf");
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Yate::Install("chan.notify");
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$ourcallid = "voicemail/" . uniqid(rand(),1);
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$partycallid = "";
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$state = "call";
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$dir = "";
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$mailbox = "";
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$collect_user = "";
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$collect_pass = "";
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$files = array();
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$current = 0;
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/* Ask the user to enter number */
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function promptUser()
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{
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global $collect_user;
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global $vm_base;
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$collect_user = "";
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$m = new Yate("chan.attach");
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$m->params["source"] = "wave/play/$vm_base/usernumber.slin";
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$m->Dispatch();
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}
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/* Ask for the password */
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function promptPass()
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{
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global $collect_pass;
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global $vm_base;
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$collect_pass = "";
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$m = new Yate("chan.attach");
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$m->params["source"] = "wave/play/$vm_base/password.slin";
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$m->Dispatch();
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}
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/* Perform machine status transitions */
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function setState($newstate)
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{
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global $ourcallid;
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global $partycallid;
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global $state;
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global $mailbox;
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global $vm_base;
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global $dir;
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global $files;
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global $current;
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// are we exiting?
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if ($state == "")
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return;
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Yate::Debug("setState('$newstate') state: $state");
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// always obey a return to prompt
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switch ($newstate) {
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case "prompt":
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$state = $newstate;
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$m = new Yate("chan.attach");
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$m->params["source"] = "wave/play/$vm_base/menu.slin";
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$m->Dispatch();
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$m = new Yate("chan.attach");
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$m->params["consumer"] = "wave/record/-";
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$m->params["maxlen"] = 320000;
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$m->params["notify"] = $ourcallid;
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$m->Dispatch();
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return;
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case "listen":
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$state = $newstate;
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if (vmSetMessageRead($mailbox,$files[$current])) {
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$m = new Yate("user.update");
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$m->id = "";
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$m->params["user"] = $mailbox;
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$m->Dispatch();
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}
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$f = $dir . "/" . $files[$current];
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$m = new Yate("chan.attach");
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if (is_file("$f"))
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$m->params["source"] = "wave/play/$f";
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else
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$m->params["source"] = "wave/play/$vm_base/deleted.slin";
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$m->params["consumer"] = "wave/record/-";
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$m->params["maxlen"] = 100000;
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$m->params["notify"] = $ourcallid;
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$m->Dispatch();
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return;
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}
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if ($newstate == $state)
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return;
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switch ($newstate) {
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case "user":
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promptUser();
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$m = new Yate("chan.attach");
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$m->params["consumer"] = "wave/record/-";
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$m->params["maxlen"] = 160000;
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$m->params["notify"] = $ourcallid;
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$m->Dispatch();
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break;
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case "pass":
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promptPass();
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$m = new Yate("chan.attach");
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$m->params["consumer"] = "wave/record/-";
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$m->params["maxlen"] = 160000;
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$m->params["notify"] = $ourcallid;
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$m->Dispatch();
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break;
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case "record":
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$m = new Yate("chan.attach");
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$m->params["source"] = "wave/play/-";
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$m->params["consumer"] = "wave/record/$dir/greeting.slin";
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$m->params["maxlen"] = 80000;
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$m->params["notify"] = $ourcallid;
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$m->Dispatch();
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break;
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case "play":
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$m = new Yate("chan.attach");
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if (is_file("$dir/greeting.slin"))
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$m->params["source"] = "wave/play/$dir/greeting.slin";
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else
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$m->params["source"] = "wave/play/$vm_base/nogreeting.slin";
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$m->params["consumer"] = "wave/record/-";
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$m->params["maxlen"] = 100000;
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$m->params["notify"] = $ourcallid;
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$m->Dispatch();
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break;
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case "goodbye":
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$mailbox = "";
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$m = new Yate("chan.attach");
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$m->params["source"] = "tone/congestion";
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$m->params["consumer"] = "wave/record/-";
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$m->params["maxlen"] = 32000;
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$m->params["notify"] = $ourcallid;
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$m->Dispatch();
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break;
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}
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$state = $newstate;
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}
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/* Check if the maibox exists, create if not, scan voicemail files */
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function initUser()
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{
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global $vm_base;
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global $dir;
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global $mailbox;
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global $files;
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vmInitMessageDir($mailbox);
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vmGetMessageFiles($mailbox,$files);
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$dir = "$vm_base/$mailbox";
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Yate::Output("found " . count($files) . " file entries for mailbox $mailbox");
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setState("prompt");
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}
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/* Transition to password entering state if user is not empty else exit */
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function checkUser()
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{
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global $collect_user;
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if ($collect_user == "")
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setState("goodbye");
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else
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setState("pass");
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}
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/* Transition to authentication state if password is not empty else exit */
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function checkPass()
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{
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global $collect_user;
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global $collect_pass;
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if ($collect_pass == "")
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setState("goodbye");
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else {
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setState("auth");
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$m = new Yate("user.auth");
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$m->params["username"] = $collect_user;
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$m->Dispatch();
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}
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}
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/* Check the system known password agains the user enterd one */
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function checkAuth($pass)
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{
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global $collect_user;
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global $collect_pass;
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global $mailbox;
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// Yate::Debug("checking passwd if '$collect_pass' == '$pass'");
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if ($collect_pass == $pass) {
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$mailbox = $collect_user;
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initUser();
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}
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else
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setState("goodbye");
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$collect_pass = "";
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}
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/* Handle EOF of wave files */
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function gotNotify()
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{
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global $ourcallid;
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global $partycallid;
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global $state;
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Yate::Debug("gotNotify() state: $state");
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switch ($state) {
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case "goodbye":
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setState("");
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break;
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case "record":
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case "play":
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case "listen":
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setState("prompt");
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break;
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case "user":
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checkUser();
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break;
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case "pass":
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checkPass();
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break;
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default:
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setState("goodbye");
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break;
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}
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}
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/* Play the n-th voicemail file */
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function listenTo($n)
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{
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global $files;
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global $current;
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if (($n < 0) || ($n >= count($files)))
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return;
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$current = $n;
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setState("listen");
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}
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/* Handle DTMFs after successfully logging in */
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function navigate($text)
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{
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global $state;
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global $current;
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switch ($text) {
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case "0":
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listenTo(0);
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break;
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case "7":
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listenTo($current-1);
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break;
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case "8":
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listenTo($current);
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break;
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case "9":
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listenTo($current+1);
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break;
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case "1":
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setState("record");
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break;
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case "2":
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setState("play");
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break;
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case "3":
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setState("");
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break;
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case "*":
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setState("prompt");
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break;
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}
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}
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/* Handle all DTMFs here */
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function gotDTMF($text)
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{
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global $state;
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global $mailbox;
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global $collect_user;
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global $collect_pass;
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Yate::Debug("gotDTMF('$text') state: $state");
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switch ($state) {
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case "user":
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if ($text == "*") {
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promptUser();
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return;
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}
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if ($text == "#")
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checkUser();
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else
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$collect_user .= $text;
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return;
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case "pass":
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if ($text == "*") {
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promptPass();
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return;
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}
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if ($text == "#")
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checkPass();
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else
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$collect_pass .= $text;
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return;
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}
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if ($mailbox == "")
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return;
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navigate($text);
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}
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/* The main loop. We pick events and handle them */
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while ($state != "") {
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$ev=Yate::GetEvent();
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/* If Yate disconnected us then exit cleanly */
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if ($ev === false)
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break;
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/* No need to handle empty events in this application */
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if ($ev === true)
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continue;
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/* If we reached here we should have a valid object */
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switch ($ev->type) {
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case "incoming":
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switch ($ev->name) {
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case "call.execute":
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$mailbox = $ev->GetValue("user");
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$partycallid = $ev->GetValue("id");
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$ev->params["targetid"] = $ourcallid;
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$ev->handled = true;
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/* We must ACK this message before dispatching a call.answered */
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$ev->Acknowledge();
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/* Prevent a warning if trying to ACK this message again */
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$ev = false;
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/* Signal we are answering the call */
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$m = new Yate("call.answered");
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$m->params["id"] = $ourcallid;
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$m->params["targetid"] = $partycallid;
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$m->Dispatch();
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/* If the user is unknown we need to identify and authenticate */
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if ($mailbox == "")
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setState("user");
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else
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initUser();
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break;
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case "chan.notify":
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if ($ev->GetValue("targetid") == $ourcallid) {
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gotNotify();
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$ev->handled = true;
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}
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break;
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case "chan.dtmf":
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if ($ev->GetValue("targetid") == $ourcallid ) {
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$text = $ev->GetValue("text");
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for ($i = 0; $i < strlen($text); $i++)
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gotDTMF($text[$i]);
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$ev->handled = true;
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}
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break;
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}
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/* This is extremely important.
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We MUST let messages return, handled or not */
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if ($ev)
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$ev->Acknowledge();
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break;
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case "answer":
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// Yate::Debug("PHP Answered: " . $ev->name . " id: " . $ev->id);
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if ($ev->name == "user.auth")
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checkAuth($ev->retval);
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break;
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case "installed":
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// Yate::Debug("PHP Installed: " . $ev->name);
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break;
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case "uninstalled":
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// Yate::Debug("PHP Uninstalled: " . $ev->name);
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break;
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default:
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// Yate::Output("PHP Event: " . $ev->type);
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}
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}
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Yate::Output("PHP: bye!");
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/* vi: set ts=8 sw=4 sts=4 noet: */
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?>
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