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Bug 853715 - 0004. Add PDU helper for decoding SL messages. r=vicamo
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@ -18,6 +18,7 @@ EXTRA_COMPONENTS = \
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EXTRA_JS_MODULES = \
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gonk/WbxmlPduHelper.jsm \
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gonk/SiPduHelper.jsm \
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gonk/SlPduHelper.jsm \
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$(NULL)
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endif
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143
dom/wappush/src/gonk/SlPduHelper.jsm
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143
dom/wappush/src/gonk/SlPduHelper.jsm
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@ -0,0 +1,143 @@
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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let WSP = {};
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Cu.import("resource://gre/modules/WspPduHelper.jsm", WSP);
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let WBXML = {};
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Cu.import("resource://gre/modules/WbxmlPduHelper.jsm", WBXML);
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// set to true to see debug messages
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let DEBUG = WBXML.DEBUG_ALL | false;
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/**
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* Public identifier for SL
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*
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* @see http://technical.openmobilealliance.org/tech/omna/omna-wbxml-public-docid.aspx
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*/
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const PUBLIC_IDENTIFIER_SL = "-//WAPFORUM//DTD SL 1.0//EN";
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this.PduHelper = {
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/**
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* @param data
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* A wrapped object containing raw PDU data.
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* @param contentType [optional]
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* Content type of incoming SL message, should be "text/vnd.wap.sl" or
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* "application/vnd.wap.slc".
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* Default value is "application/vnd.wap.slc".
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* @param msg [optional]
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* Optional target object for decoding.
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*
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* @return A SL message object or null in case of errors found.
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*/
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parse: function parse_sl(data, contentType, msg) {
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if (!msg) {
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msg = {};
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}
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/**
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* Message is compressed by WBXML, decode into string.
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*
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* @see WAP-192-WBXML-20010725-A
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*/
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if (!contentType || contentType === "application/vnd.wap.slc") {
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let appToken = {
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publicId: PUBLIC_IDENTIFIER_SL,
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tagToken: SL_TAG_FIELDS,
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attrToken: SL_ATTRIBUTE_FIELDS,
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globalTokenOverride: null
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}
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WBXML.PduHelper.parse(data, appToken, msg);
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return msg;
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}
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/**
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* Message is plain text, transform raw to string.
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*/
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if (contentType === "text/vnd.wap.sl") {
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let stringData = WSP.Octet.decodeMultiple(data, data.array.length);
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msg.publicId = PUBLIC_IDENTIFIER_SL;
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msg.content = WSP.PduHelper.decodeStringContent(stringData, "UTF-8");
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return msg;
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}
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return null;
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},
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/**
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* @param multiStream
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* An exsiting nsIMultiplexInputStream.
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* @param msg
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* A SL message object.
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*
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* @return An instance of nsIMultiplexInputStream or null in case of errors.
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*/
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compose: function compose_sl(multiStream, msg) {
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// Composing SL message is not supported
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return null;
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},
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};
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/**
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* Tag tokens
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*
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* @see WAP-168-SERVICELOAD-20010731-A, clause 9.3.1
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*/
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const SL_TAG_FIELDS = (function () {
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let names = {};
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function add(name, number) {
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let entry = {
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name: name,
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number: number,
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};
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names[name] = names[number] = entry;
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}
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add("sl", 0x05);
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return names;
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})();
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/**
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* Attribute Tokens
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*
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* @see WAP-168-SERVICELOAD-20010731-A, clause 9.3.2
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*/
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const SL_ATTRIBUTE_FIELDS = (function () {
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let names = {};
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function add(name, value, number) {
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let entry = {
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name: name,
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value: value,
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number: number,
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};
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names[name] = names[number] = entry;
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}
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add("action", "execute-low", 0x05);
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add("action", "execute-high", 0x06);
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add("action", "cache", 0x07);
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add("href", "", 0x08);
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add("href", "http://", 0x09);
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add("href", "http://www.", 0x0A);
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add("href", "https://", 0x0B);
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add("href", "https://www.", 0x0C);
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add("", ".com/", 0x85);
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add("", ".edu/", 0x86);
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add("", ".net/", 0x87);
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add("", ".org/", 0x88);
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return names;
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})();
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this.EXPORTED_SYMBOLS = [
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// Parser
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"PduHelper",
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];
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