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: const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
michael@0: 
michael@0: let WSP = {};
michael@0: Cu.import("resource://gre/modules/WspPduHelper.jsm", WSP);
michael@0: let WBXML = {};
michael@0: Cu.import("resource://gre/modules/WbxmlPduHelper.jsm", WBXML);
michael@0: 
michael@0: // set to true to see debug messages
michael@0: let DEBUG = WBXML.DEBUG_ALL | false;
michael@0: 
michael@0: /**
michael@0:  * Public identifier for SL
michael@0:  *
michael@0:  * @see http://technical.openmobilealliance.org/tech/omna/omna-wbxml-public-docid.aspx
michael@0:  */
michael@0: const PUBLIC_IDENTIFIER_SL    = "-//WAPFORUM//DTD SL 1.0//EN";
michael@0: 
michael@0: this.PduHelper = {
michael@0: 
michael@0:   /**
michael@0:    * @param data
michael@0:    *        A wrapped object containing raw PDU data.
michael@0:    * @param contentType
michael@0:    *        Content type of incoming SL message, should be "text/vnd.wap.sl" or
michael@0:    *        "application/vnd.wap.slc".
michael@0:    *
michael@0:    * @return A message object containing attribute content and contentType.
michael@0:    *         |content| will contain string of decoded SL message if successfully
michael@0:    *         decoded, or raw data if failed.
michael@0:    *         |contentType| will be string representing corresponding type of
michael@0:    *         content.
michael@0:    */
michael@0:   parse: function parse_sl(data, contentType) {
michael@0:     // We only need content and contentType
michael@0:     let msg = {
michael@0:       contentType: contentType
michael@0:     };
michael@0: 
michael@0:     /**
michael@0:      * Message is compressed by WBXML, decode into string.
michael@0:      *
michael@0:      * @see WAP-192-WBXML-20010725-A
michael@0:      */
michael@0:     if (contentType === "application/vnd.wap.slc") {
michael@0:       let appToken = {
michael@0:         publicId: PUBLIC_IDENTIFIER_SL,
michael@0:         tagTokenList: SL_TAG_FIELDS,
michael@0:         attrTokenList: SL_ATTRIBUTE_FIELDS,
michael@0:         valueTokenList: SL_VALUE_FIELDS,
michael@0:         globalTokenOverride: null
michael@0:       }
michael@0: 
michael@0:       try {
michael@0:         let parseResult = WBXML.PduHelper.parse(data, appToken);
michael@0:         msg.content = parseResult.content;
michael@0:         msg.contentType = "text/vnd.wap.sl";
michael@0:       } catch (e) {
michael@0:         // Provide raw data if we failed to parse.
michael@0:         msg.content = data.array;
michael@0:       }
michael@0: 
michael@0:       return msg;
michael@0:     }
michael@0: 
michael@0:     /**
michael@0:      * Message is plain text, transform raw to string.
michael@0:      */
michael@0:     try {
michael@0:       let stringData = WSP.Octet.decodeMultiple(data, data.array.length);
michael@0:       msg.content = WSP.PduHelper.decodeStringContent(stringData, "UTF-8");
michael@0:     } catch (e) {
michael@0:       // Provide raw data if we failed to parse.
michael@0:       msg.content = data.array;
michael@0:     }
michael@0:     return msg;
michael@0: 
michael@0:   }
michael@0: };
michael@0: 
michael@0: /**
michael@0:  * Tag tokens
michael@0:  *
michael@0:  * @see WAP-168-SERVICELOAD-20010731-A, clause 9.3.1
michael@0:  */
michael@0: const SL_TAG_FIELDS = (function () {
michael@0:   let names = {};
michael@0:   function add(name, codepage, number) {
michael@0:     let entry = {
michael@0:       name: name,
michael@0:       number: number,
michael@0:     };
michael@0:     if (!names[codepage]) {
michael@0:       names[codepage] = {};
michael@0:     }
michael@0:     names[codepage][number] = entry;
michael@0:   }
michael@0: 
michael@0:   add("sl",       0,  0x05);
michael@0: 
michael@0:   return names;
michael@0: })();
michael@0: 
michael@0: /**
michael@0:  * Attribute Tokens
michael@0:  *
michael@0:  * @see WAP-168-SERVICELOAD-20010731-A, clause 9.3.2
michael@0:  */
michael@0: const SL_ATTRIBUTE_FIELDS = (function () {
michael@0:   let names = {};
michael@0:   function add(name, value, codepage, number) {
michael@0:     let entry = {
michael@0:       name: name,
michael@0:       value: value,
michael@0:       number: number,
michael@0:     };
michael@0:     if (!names[codepage]) {
michael@0:       names[codepage] = {};
michael@0:     }
michael@0:     names[codepage][number] = entry;
michael@0:   }
michael@0: 
michael@0:   add("action",       "execute-low",    0,  0x05);
michael@0:   add("action",       "execute-high",   0,  0x06);
michael@0:   add("action",       "cache",          0,  0x07);
michael@0:   add("href",         "",               0,  0x08);
michael@0:   add("href",         "http://",        0,  0x09);
michael@0:   add("href",         "http://www.",    0,  0x0A);
michael@0:   add("href",         "https://",       0,  0x0B);
michael@0:   add("href",         "https://www.",   0,  0x0C);
michael@0: 
michael@0:   return names;
michael@0: })();
michael@0: 
michael@0: const SL_VALUE_FIELDS = (function () {
michael@0:   let names = {};
michael@0:   function add(value, codepage, number) {
michael@0:     let entry = {
michael@0:       value: value,
michael@0:       number: number,
michael@0:     };
michael@0:     if (!names[codepage]) {
michael@0:       names[codepage] = {};
michael@0:     }
michael@0:     names[codepage][number] = entry;
michael@0:   }
michael@0: 
michael@0:   add(".com/",      0,  0x85);
michael@0:   add(".edu/",      0,  0x86);
michael@0:   add(".net/",      0,  0x87);
michael@0:   add(".org/",      0,  0x88);
michael@0: 
michael@0:   return names;
michael@0: })();
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = [
michael@0:   // Parser
michael@0:   "PduHelper",
michael@0: ];