/**
* Some dial strings in GSM are defined to do non-call setup things, such as modify or query
* supplementary service settings (eg, call forwarding). These are generally referred to as "MMI
* codes". We look to see if the dial string contains a valid MMI code (potentially with a dial
* string at the end as well) and return info here.
*
* <p>If the dial string contains no MMI code, we return an instance with only "dialingNumber" set
*
* <p>Please see flow chart in TS 22.030 6.5.3.2
*/
static GsmMmiCode newFromDialString(String dialString, GSMPhone phone, UiccCardApplication app) {
Matcher m;
GsmMmiCode ret = null;
if (SystemProperties.getBoolean("ro.config.multimode_cdma", false)) {
m = sPatternSuppServiceGlobalDev.matcher(dialString);
if (m.matches()) {
ret = new GsmMmiCode(phone, app);
ret.action = makeEmptyNull(m.group(MATCH_GROUP_ACTION));
String DialCode = makeEmptyNull(m.group(MATCH_GROUP_SERVICE_CODE));
if (DialCode.equals(SC_GLOBALDEV_VM)) {
ret.sc = SC_GLOBALDEV_VM;
ret.dialingNumber = "+1" + phone.getMdn();
return ret;
} else if (DialCode.equals(SC_GLOBALDEV_CS)) {
ret.sc = SC_GLOBALDEV_CS;
ret.dialingNumber = GLOBALDEV_CS;
return ret;
} else if (DialCode.length() >= 3 && DialCode.startsWith(SC_GLOBALDEV_CLIR_INVK)) {
// Dial "#31#PhoneNum" to invoke CLIR temporarily
dialString = ACTION_DEACTIVATE + SC_CLIR + ACTION_DEACTIVATE + DialCode.substring(2);
} else if (DialCode.length() >= 3 && DialCode.startsWith(SC_GLOBALDEV_CLIR_SUPP)) {
// Dial "*31#PhoneNum" to suppress CLIR temporarily
dialString = ACTION_ACTIVATE + SC_CLIR + ACTION_DEACTIVATE + DialCode.substring(2);
}
}
}
m = sPatternSuppService.matcher(dialString);
// Is this formatted like a standard supplementary service code?
if (m.matches()) {
ret = new GsmMmiCode(phone, app);
ret.poundString = makeEmptyNull(m.group(MATCH_GROUP_POUND_STRING));
ret.action = makeEmptyNull(m.group(MATCH_GROUP_ACTION));
ret.sc = makeEmptyNull(m.group(MATCH_GROUP_SERVICE_CODE));
ret.sia = makeEmptyNull(m.group(MATCH_GROUP_SIA));
ret.sib = makeEmptyNull(m.group(MATCH_GROUP_SIB));
ret.sic = makeEmptyNull(m.group(MATCH_GROUP_SIC));
ret.pwd = makeEmptyNull(m.group(MATCH_GROUP_PWD_CONFIRM));
ret.dialingNumber = makeEmptyNull(m.group(MATCH_GROUP_DIALING_NUMBER));
} else if (dialString.endsWith("#")) {
// TS 22.030 sec 6.5.3.2
// "Entry of any characters defined in the 3GPP TS 23.038 [8] Default Alphabet
// (up to the maximum defined in 3GPP TS 24.080 [10]), followed by #SEND".
ret = new GsmMmiCode(phone, app);
ret.poundString = dialString;
} else if (isTwoDigitShortCode(phone.getContext(), dialString)) {
// Is a country-specific exception to short codes as defined in TS 22.030, 6.5.3.2
ret = null;
} else if (isShortCode(dialString, phone)) {
// this may be a short code, as defined in TS 22.030, 6.5.3.2
ret = new GsmMmiCode(phone, app);
ret.dialingNumber = dialString;
}
return ret;
}
GsmMmiCode(GSMPhone phone, UiccCardApplication app) {
// The telephony unit-test cases may create GsmMmiCode's
// in secondary threads
super(phone.getHandler().getLooper());
this.phone = phone;
this.context = phone.getContext();
mUiccApp = app;
}