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Bug 839402 - Part 1 - Make decoding cdma pdu message reusable. r=vicamo

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This commit is contained in:
Patrick Wang 2013-03-11 22:01:37 +08:00
parent 184ed07d7c
commit 90c2008804
1 changed files with 47 additions and 39 deletions
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86
dom/system/gonk/ril_worker.js
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@ -8163,57 +8163,36 @@ let CdmaPDUHelper = {
return header;
},
/**
* User data subparameter decoder : User Data
*
* @see 3GGP2 C.S0015-B 2.0, 4.5.2 User Data
*/
decodeUserDataMsg: function cdma_decodeUserDataMsg(hasUserHeader) {
let result = {},
encoding = BitBufferHelper.readBits(5);
if(encoding === PDU_CDMA_MSG_CODING_IS_91) {
let msgType = BitBufferHelper.readBits(8);
}
let msgBodySize = BitBufferHelper.readBits(8);
const langTable = PDU_NL_LOCKING_SHIFT_TABLES[PDU_NL_IDENTIFIER_DEFAULT];
const langShiftTable = PDU_NL_SINGLE_SHIFT_TABLES[PDU_NL_IDENTIFIER_DEFAULT];
getCdmaMsgEncoding: function getCdmaMsgEncoding(encoding) {
// Determine encoding method
switch (encoding) {
case PDU_CDMA_MSG_CODING_7BITS_ASCII:
case PDU_CDMA_MSG_CODING_IA5:
case PDU_CDMA_MSG_CODING_7BITS_GSM:
result.encoding = PDU_DCS_MSG_CODING_7BITS_ALPHABET;
break;
return PDU_DCS_MSG_CODING_7BITS_ALPHABET;
case PDU_CDMA_MSG_CODING_OCTET:
case PDU_CDMA_MSG_CODING_IS_91:
case PDU_CDMA_MSG_CODING_LATIN_HEBREW:
case PDU_CDMA_MSG_CODING_LATIN:
result.encoding = PDU_DCS_MSG_CODING_8BITS_ALPHABET;
break;
return PDU_DCS_MSG_CODING_8BITS_ALPHABET;
case PDU_CDMA_MSG_CODING_UNICODE:
case PDU_CDMA_MSG_CODING_SHIFT_JIS:
case PDU_CDMA_MSG_CODING_KOREAN:
result.encoding = PDU_DCS_MSG_CODING_16BITS_ALPHABET;
break;
return PDU_DCS_MSG_CODING_16BITS_ALPHABET;
}
return null;
},
// For segmented SMS, a user header is included before sms content
if (hasUserHeader) {
result.header = this.decodeUserDataHeader(result.encoding);
// header size is included in body size, they are decoded
msgBodySize -= result.header.length;
}
// Decode sms content
result.body = "";
decodeCdmaPDUMsg: function decodeCdmaPDUMsg(encoding, msgType, msgBodySize) {
const langTable = PDU_NL_LOCKING_SHIFT_TABLES[PDU_NL_IDENTIFIER_DEFAULT];
const langShiftTable = PDU_NL_SINGLE_SHIFT_TABLES[PDU_NL_IDENTIFIER_DEFAULT];
let result = "";
let msgDigit;
switch (encoding) {
case PDU_CDMA_MSG_CODING_OCTET: // TODO : Require Test
while(msgBodySize > 0) {
msgDigit = String.fromCharCode(BitBufferHelper.readBits(8));
result.body += msgDigit;
result += msgDigit;
msgBodySize--;
}
break;
@ -8225,7 +8204,7 @@ let CdmaPDUHelper = {
case PDU_CDMA_MSG_CODING_IS_91_TYPE_VOICEMAIL_STATUS:
while(msgBodySize > 0) {
msgDigit = String.fromCharCode(BitBufferHelper.readBits(6) + 0x20);
result.body += msgDigit;
result += msgDigit;
msgBodySize--;
}
break;
@ -8240,7 +8219,7 @@ let CdmaPDUHelper = {
for (let i = 0; i < addrInfo.addrLength; i++) {
addrInfo.address.push(BitBufferHelper.readBits(4));
}
result.body = this.decodeAddr(addrInfo);
result = this.decodeAddr(addrInfo);
break;
}
case PDU_CDMA_MSG_CODING_7BITS_ASCII:
@ -8258,14 +8237,14 @@ let CdmaPDUHelper = {
msgDigit = langShiftTable[msgDigit];
}
}
result.body += msgDigit;
result += msgDigit;
msgBodySize--;
}
break;
case PDU_CDMA_MSG_CODING_UNICODE:
while(msgBodySize > 0) {
msgDigit = String.fromCharCode(BitBufferHelper.readBits(16));
result.body += msgDigit;
result += msgDigit;
msgBodySize--;
}
break;
@ -8279,7 +8258,7 @@ let CdmaPDUHelper = {
msgBodySize--;
msgDigit = langShiftTable[msgDigit];
}
result.body += msgDigit;
result += msgDigit;
msgBodySize--;
}
break;
@ -8287,7 +8266,7 @@ let CdmaPDUHelper = {
// Reference : http://en.wikipedia.org/wiki/ISO/IEC_8859-1
while(msgBodySize > 0) {
msgDigit = String.fromCharCode(BitBufferHelper.readBits(8));
result.body += msgDigit;
result += msgDigit;
msgBodySize--;
}
break;
@ -8306,7 +8285,7 @@ let CdmaPDUHelper = {
} else {
msgDigit = String.fromCharCode(msgDigit);
}
result.body += msgDigit;
result += msgDigit;
msgBodySize--;
}
break;
@ -8318,6 +8297,35 @@ let CdmaPDUHelper = {
default:
break;
}
return result;
},
/**
* User data subparameter decoder : User Data
*
* @see 3GGP2 C.S0015-B 2.0, 4.5.2 User Data
*/
decodeUserDataMsg: function cdma_decodeUserDataMsg(hasUserHeader) {
let result = {},
encoding = BitBufferHelper.readBits(5),
msgType;
if(encoding === PDU_CDMA_MSG_CODING_IS_91) {
msgType = BitBufferHelper.readBits(8);
}
result.encoding = this.getCdmaMsgEncoding(encoding);
let msgBodySize = BitBufferHelper.readBits(8);
// For segmented SMS, a user header is included before sms content
if (hasUserHeader) {
result.header = this.decodeUserDataHeader(result.encoding);
// header size is included in body size, they are decoded
msgBodySize -= result.header.length;
}
// Decode sms content
result.body = this.decodeCdmaPDUMsg(encoding, msgType, msgBodySize);
return result;
},