michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this file,
michael@0:  * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = ["TelURIParser"];
michael@0: 
michael@0: /**
michael@0:  * Singleton providing functionality for parsing tel: and sms: URIs
michael@0:  */
michael@0: this.TelURIParser = {
michael@0:   parseURI: function(scheme, uri) {
michael@0:     // https://www.ietf.org/rfc/rfc2806.txt
michael@0:     let subscriber = decodeURIComponent(uri.slice((scheme + ':').length));
michael@0: 
michael@0:     if (!subscriber.length) {
michael@0:       return null;
michael@0:     }
michael@0: 
michael@0:     let number = '';
michael@0:     let pos = 0;
michael@0:     let len = subscriber.length;
michael@0: 
michael@0:     // visual-separator
michael@0:     let visualSeparator = [ ' ', '-', '.', '(', ')' ];
michael@0:     let digits = [ '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' ];
michael@0:     let dtmfDigits = [ '*', '#', 'A', 'B', 'C', 'D' ];
michael@0:     let pauseCharacter = [ 'p', 'w' ];
michael@0: 
michael@0:     // global-phone-number
michael@0:     if (subscriber[pos] == '+') {
michael@0:       number += '+';
michael@0:       for (++pos; pos < len; ++pos) {
michael@0:         if (visualSeparator.indexOf(subscriber[pos]) != -1) {
michael@0:           number += subscriber[pos];
michael@0:         } else if (digits.indexOf(subscriber[pos]) != -1) {
michael@0:           number += subscriber[pos];
michael@0:         } else {
michael@0:           break;
michael@0:         }
michael@0:       }
michael@0:     }
michael@0:     // local-phone-number
michael@0:     else {
michael@0:       for (; pos < len; ++pos) {
michael@0:         if (visualSeparator.indexOf(subscriber[pos]) != -1) {
michael@0:           number += subscriber[pos];
michael@0:         } else if (digits.indexOf(subscriber[pos]) != -1) {
michael@0:           number += subscriber[pos];
michael@0:         } else if (dtmfDigits.indexOf(subscriber[pos]) != -1) {
michael@0:           number += subscriber[pos];
michael@0:         } else if (pauseCharacter.indexOf(subscriber[pos]) != -1) {
michael@0:           number += subscriber[pos];
michael@0:         } else {
michael@0:           break;
michael@0:         }
michael@0:       }
michael@0: 
michael@0:       // this means error
michael@0:       if (!number.length) {
michael@0:         return null;
michael@0:       }
michael@0: 
michael@0:       // isdn-subaddress
michael@0:       if (subscriber.substring(pos, pos + 6) == ';isub=') {
michael@0:         let subaddress = '';
michael@0: 
michael@0:         for (pos += 6; pos < len; ++pos) {
michael@0:           if (visualSeparator.indexOf(subscriber[pos]) != -1) {
michael@0:             subaddress += subscriber[pos];
michael@0:           } else if (digits.indexOf(subscriber[pos]) != -1) {
michael@0:             subaddress += subscriber[pos];
michael@0:           } else {
michael@0:             break;
michael@0:           }
michael@0:         }
michael@0: 
michael@0:         // FIXME: ignore subaddress - Bug 795242
michael@0:       }
michael@0: 
michael@0:       // post-dial
michael@0:       if (subscriber.substring(pos, pos + 7) == ';postd=') {
michael@0:         let subaddress = '';
michael@0: 
michael@0:         for (pos += 7; pos < len; ++pos) {
michael@0:           if (visualSeparator.indexOf(subscriber[pos]) != -1) {
michael@0:             subaddress += subscriber[pos];
michael@0:           } else if (digits.indexOf(subscriber[pos]) != -1) {
michael@0:             subaddress += subscriber[pos];
michael@0:           } else if (dtmfDigits.indexOf(subscriber[pos]) != -1) {
michael@0:             subaddress += subscriber[pos];
michael@0:           } else if (pauseCharacter.indexOf(subscriber[pos]) != -1) {
michael@0:             subaddress += subscriber[pos];
michael@0:           } else {
michael@0:             break;
michael@0:           }
michael@0:         }
michael@0: 
michael@0:         // FIXME: ignore subaddress - Bug 795242
michael@0:       }
michael@0: 
michael@0:       // area-specific
michael@0:       if (subscriber.substring(pos, pos + 15) == ';phone-context=') {
michael@0:         pos += 15;
michael@0: 
michael@0:         // global-network-prefix | local-network-prefix | private-prefi
michael@0:         number = subscriber.substring(pos, subscriber.length) + number;
michael@0:       }
michael@0:     }
michael@0: 
michael@0:     // Ignore MWI and USSD codes. See 794034.
michael@0:     if (number.match(/[#\*]/) && !number.match(/^[#\*]\d+$/)) {
michael@0:       return null;
michael@0:     }
michael@0: 
michael@0:     return number || null;
michael@0:   }
michael@0: };
michael@0: