490 lines
13 KiB
Go
490 lines
13 KiB
Go
// Copyright 2015 Tony Bai.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cmpp
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import (
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"encoding/binary"
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"errors"
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)
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// Packet length const for cmpp fwd request and response packets.
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const (
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Cmpp2FwdReqPktMaxLen uint32 = 12 + 2379 //2277d, 0x957
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Cmpp2FwdRspPktLen uint32 = 12 + 8 + 1 + 1 + 1 //23d, 0x17
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Cmpp3FwdReqPktMaxLen uint32 = 12 + 2491 //2503d, 0x9c7
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Cmpp3FwdRspPktLen uint32 = 12 + 8 + 1 + 1 + 4 //26d, 0x1a
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)
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// Errors for result in fwd resp.
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var (
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ErrnoFwdInvalidStruct uint8 = 1
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ErrnoFwdInvalidCommandId uint8 = 2
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ErrnoFwdInvalidSequence uint8 = 3
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ErrnoFwdInvalidMsgLength uint8 = 4
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ErrnoFwdInvalidFeeCode uint8 = 5
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ErrnoFwdExceedMaxMsgLength uint8 = 6
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ErrnoFwdInvalidServiceId uint8 = 7
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ErrnoFwdNotPassFlowControl uint8 = 8
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ErrnoFwdNoPrivilege uint8 = 9
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FwdRspResultErrMap = map[uint8]error{
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ErrnoFwdInvalidStruct: errFwdInvalidStruct,
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ErrnoFwdInvalidCommandId: errFwdInvalidCommandId,
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ErrnoFwdInvalidSequence: errFwdInvalidSequence,
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ErrnoFwdInvalidMsgLength: errFwdInvalidMsgLength,
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ErrnoFwdInvalidFeeCode: errFwdInvalidFeeCode,
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ErrnoFwdExceedMaxMsgLength: errFwdExceedMaxMsgLength,
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ErrnoFwdInvalidServiceId: errFwdInvalidServiceId,
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ErrnoFwdNotPassFlowControl: errFwdNotPassFlowControl,
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ErrnoFwdNoPrivilege: errFwdNoPrivilege,
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}
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errFwdInvalidStruct = errors.New("fwd response status: invalid protocol structure")
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errFwdInvalidCommandId = errors.New("fwd response status: invalid command id")
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errFwdInvalidSequence = errors.New("fwd response status: invalid message sequence")
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errFwdInvalidMsgLength = errors.New("fwd response status: invalid message length")
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errFwdInvalidFeeCode = errors.New("fwd response status: invalid fee code")
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errFwdExceedMaxMsgLength = errors.New("fwd response status: exceed max message length")
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errFwdInvalidServiceId = errors.New("fwd response status: invalid service id")
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errFwdNotPassFlowControl = errors.New("fwd response status: not pass the flow control")
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errFwdNoPrivilege = errors.New("fwd response status: msg has no fwd privilege")
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)
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type Cmpp2FwdReqPkt struct {
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SourceId string
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DestinationId string
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NodesCount uint8
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MsgFwdType uint8
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MsgId uint64
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PkTotal uint8
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PkNumber uint8
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RegisteredDelivery uint8
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MsgLevel uint8
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ServiceId string
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FeeUserType uint8
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FeeTerminalId string
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TpPid uint8
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TpUdhi uint8
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MsgFmt uint8
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MsgSrc string
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FeeType string
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FeeCode string
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ValidTime string
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AtTime string
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SrcId string
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DestUsrTl uint8
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DestId []string
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MsgLength uint8
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MsgContent string
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Reserve string
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// session info
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SeqId uint32
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}
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type Cmpp2FwdRspPkt struct {
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MsgId uint64
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PkTotal uint8
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PkNumber uint8
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Result uint8
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// session info
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SeqId uint32
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}
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type Cmpp3FwdReqPkt struct {
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SourceId string
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DestinationId string
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NodesCount uint8
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MsgFwdType uint8
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MsgId uint64
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PkTotal uint8
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PkNumber uint8
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RegisteredDelivery uint8
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MsgLevel uint8
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ServiceId string
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FeeUserType uint8
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FeeTerminalId string
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FeeTerminalPseudo string
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FeeTerminalUserType uint8
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TpPid uint8
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TpUdhi uint8
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MsgFmt uint8
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MsgSrc string
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FeeType string
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FeeCode string
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ValidTime string
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AtTime string
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SrcId string
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SrcPseudo string
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SrcUserType uint8
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SrcType uint8
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DestUsrTl uint8
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DestId []string
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DestPseudo string
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DestUserType uint8
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MsgLength uint8
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MsgContent string
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LinkId string
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// session info
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SeqId uint32
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}
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type Cmpp3FwdRspPkt struct {
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MsgId uint64
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PkTotal uint8
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PkNumber uint8
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Result uint32
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// session info
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SeqId uint32
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}
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// Pack packs the Cmpp2FwdReqPkt to bytes stream for client side.
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// Before calling Pack, you should initialize a Cmpp2FwdReqPkt variable
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// with correct field value.
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func (p *Cmpp2FwdReqPkt) Pack(seqId uint32) ([]byte, error) {
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var pktLen uint32 = CMPP_HEADER_LEN + 131 + uint32(p.DestUsrTl)*21 + 1 + uint32(p.MsgLength) + 8
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var w = newPacketWriter(pktLen)
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// Pack header
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w.WriteInt(binary.BigEndian, pktLen)
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w.WriteInt(binary.BigEndian, CMPP_FWD)
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w.WriteInt(binary.BigEndian, seqId)
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p.SeqId = seqId
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// Pack Body
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w.WriteFixedSizeString(p.SourceId, 6)
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w.WriteFixedSizeString(p.DestinationId, 6)
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w.WriteByte(p.NodesCount)
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w.WriteByte(p.MsgFwdType)
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w.WriteInt(binary.BigEndian, p.MsgId)
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if p.PkTotal == 0 && p.PkNumber == 0 {
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p.PkTotal, p.PkNumber = 1, 1
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}
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w.WriteByte(p.PkTotal)
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w.WriteByte(p.PkNumber)
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w.WriteByte(p.RegisteredDelivery)
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w.WriteByte(p.MsgLevel)
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w.WriteFixedSizeString(p.ServiceId, 10)
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w.WriteByte(p.FeeUserType)
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w.WriteFixedSizeString(p.FeeTerminalId, 21)
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w.WriteByte(p.TpPid)
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w.WriteByte(p.TpUdhi)
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w.WriteByte(p.MsgFmt)
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w.WriteFixedSizeString(p.MsgSrc, 6)
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w.WriteFixedSizeString(p.FeeType, 2)
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w.WriteFixedSizeString(p.FeeCode, 6)
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w.WriteFixedSizeString(p.ValidTime, 17)
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w.WriteFixedSizeString(p.AtTime, 17)
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w.WriteFixedSizeString(p.SrcId, 21)
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w.WriteByte(p.DestUsrTl)
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for _, d := range p.DestId {
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w.WriteFixedSizeString(d, 21)
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}
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w.WriteByte(p.MsgLength)
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w.WriteString(p.MsgContent)
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w.WriteFixedSizeString(p.Reserve, 8)
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return w.Bytes()
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}
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// Unpack unpack the binary byte stream to a Cmpp2FwdReqPkt variable.
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// After unpack, you will get all value of fields in Cmpp2FwdReqPkt struct.
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func (p *Cmpp2FwdReqPkt) Unpack(data []byte) error {
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var r = newPacketReader(data)
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// Sequence Id
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r.ReadInt(binary.BigEndian, &p.SeqId)
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sourceId := r.ReadCString(6)
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p.SourceId = string(sourceId)
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destinationId := r.ReadCString(6)
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p.DestinationId = string(destinationId)
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p.NodesCount = r.ReadByte()
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p.MsgFwdType = r.ReadByte()
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r.ReadInt(binary.BigEndian, &p.MsgId)
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p.PkTotal = r.ReadByte()
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p.PkNumber = r.ReadByte()
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p.RegisteredDelivery = r.ReadByte()
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p.MsgLevel = r.ReadByte()
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serviceId := r.ReadCString(10)
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p.ServiceId = string(serviceId)
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p.FeeUserType = r.ReadByte()
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feeTerminalId := r.ReadCString(21)
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p.FeeTerminalId = string(feeTerminalId)
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p.TpPid = r.ReadByte()
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p.TpUdhi = r.ReadByte()
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p.MsgFmt = r.ReadByte()
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msgSrc := r.ReadCString(6)
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p.MsgSrc = string(msgSrc)
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feeType := make([]byte, 2)
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r.ReadBytes(feeType)
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p.FeeType = string(feeType)
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feeCode := r.ReadCString(6)
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p.FeeCode = string(feeCode)
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validTime := r.ReadCString(17)
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p.ValidTime = string(validTime)
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atTime := r.ReadCString(17)
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p.AtTime = string(atTime)
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srcId := r.ReadCString(21)
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p.SrcId = string(srcId)
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p.DestUsrTl = r.ReadByte()
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for i := 0; i < int(p.DestUsrTl); i++ {
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destId := r.ReadCString(21)
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p.DestId = append(p.DestId, string(destId))
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}
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p.MsgLength = r.ReadByte()
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msgContent := make([]byte, p.MsgLength)
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r.ReadBytes(msgContent)
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p.MsgContent = string(msgContent)
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reserve := r.ReadCString(8)
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p.Reserve = string(reserve)
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return r.Error()
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}
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// Pack packs the Cmpp2FwdRspPkt to bytes stream for server side.
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// Before calling Pack, you should initialize a Cmpp2FwdRspPkt variable
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// with correct field value.
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func (p *Cmpp2FwdRspPkt) Pack(seqId uint32) ([]byte, error) {
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var pktLen = Cmpp2FwdRspPktLen
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var w = newPacketWriter(pktLen)
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// Pack header
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w.WriteInt(binary.BigEndian, pktLen)
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w.WriteInt(binary.BigEndian, CMPP_FWD_RESP)
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w.WriteInt(binary.BigEndian, seqId)
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p.SeqId = seqId
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// Pack Body
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w.WriteInt(binary.BigEndian, p.MsgId)
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w.WriteByte(p.PkTotal)
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w.WriteByte(p.PkNumber)
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w.WriteByte(p.Result)
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return w.Bytes()
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}
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// Unpack unpack the binary byte stream to a Cmpp2FwdRspPkt variable.
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// After unpack, you will get all value of fields in Cmpp2FwdRspPkt struct.
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func (p *Cmpp2FwdRspPkt) Unpack(data []byte) error {
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var r = newPacketReader(data)
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// Sequence Id
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r.ReadInt(binary.BigEndian, &p.SeqId)
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r.ReadInt(binary.BigEndian, &p.MsgId)
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p.PkTotal = r.ReadByte()
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p.PkNumber = r.ReadByte()
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p.Result = r.ReadByte()
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return r.Error()
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}
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// Pack packs the Cmpp3FwdReqPkt to bytes stream for client side.
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// Before calling Pack, you should initialize a Cmpp3FwdReqPkt variable
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// with correct field value.
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func (p *Cmpp3FwdReqPkt) Pack(seqId uint32) ([]byte, error) {
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var pktLen uint32 = CMPP_HEADER_LEN + 198 + uint32(p.DestUsrTl)*21 + 32 + 1 + 1 + uint32(p.MsgLength) + 20
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var w = newPacketWriter(pktLen)
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// Pack header
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w.WriteInt(binary.BigEndian, pktLen)
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w.WriteInt(binary.BigEndian, CMPP_FWD)
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w.WriteInt(binary.BigEndian, seqId)
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p.SeqId = seqId
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// Pack Body
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w.WriteFixedSizeString(p.SourceId, 6)
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w.WriteFixedSizeString(p.DestinationId, 6)
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w.WriteByte(p.NodesCount)
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w.WriteByte(p.MsgFwdType)
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w.WriteInt(binary.BigEndian, p.MsgId)
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if p.PkTotal == 0 && p.PkNumber == 0 {
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p.PkTotal, p.PkNumber = 1, 1
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}
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w.WriteByte(p.PkTotal)
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w.WriteByte(p.PkNumber)
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w.WriteByte(p.RegisteredDelivery)
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w.WriteByte(p.MsgLevel)
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w.WriteFixedSizeString(p.ServiceId, 10)
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w.WriteByte(p.FeeUserType)
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w.WriteFixedSizeString(p.FeeTerminalId, 21)
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w.WriteFixedSizeString(p.FeeTerminalPseudo, 32)
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w.WriteByte(p.FeeTerminalUserType)
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w.WriteByte(p.TpPid)
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w.WriteByte(p.TpUdhi)
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w.WriteByte(p.MsgFmt)
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w.WriteFixedSizeString(p.MsgSrc, 6)
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w.WriteFixedSizeString(p.FeeType, 2)
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w.WriteFixedSizeString(p.FeeCode, 6)
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w.WriteFixedSizeString(p.ValidTime, 17)
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w.WriteFixedSizeString(p.AtTime, 17)
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w.WriteFixedSizeString(p.SrcId, 21)
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w.WriteFixedSizeString(p.SrcPseudo, 32)
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w.WriteByte(p.SrcUserType)
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w.WriteByte(p.SrcType)
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w.WriteByte(p.DestUsrTl)
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for _, d := range p.DestId {
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w.WriteFixedSizeString(d, 21)
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}
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w.WriteFixedSizeString(p.DestPseudo, 32)
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w.WriteByte(p.DestUserType)
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w.WriteByte(p.MsgLength)
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w.WriteString(p.MsgContent)
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w.WriteFixedSizeString(p.LinkId, 20)
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return w.Bytes()
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}
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// Unpack unpack the binary byte stream to a Cmpp3FwdReqPkt variable.
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// After unpack, you will get all value of fields in Cmpp3FwdReqPkt struct.
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func (p *Cmpp3FwdReqPkt) Unpack(data []byte) error {
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var r = newPacketReader(data)
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// Sequence Id
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r.ReadInt(binary.BigEndian, &p.SeqId)
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// Body
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sourceId := r.ReadCString(6)
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p.SourceId = string(sourceId)
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destinationId := r.ReadCString(6)
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p.DestinationId = string(destinationId)
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p.NodesCount = r.ReadByte()
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p.MsgFwdType = r.ReadByte()
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r.ReadInt(binary.BigEndian, &p.MsgId)
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p.PkTotal = r.ReadByte()
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p.PkNumber = r.ReadByte()
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p.RegisteredDelivery = r.ReadByte()
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p.MsgLevel = r.ReadByte()
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serviceId := r.ReadCString(10)
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p.ServiceId = string(serviceId)
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p.FeeUserType = r.ReadByte()
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feeTerminalId := r.ReadCString(21)
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p.FeeTerminalId = string(feeTerminalId)
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feeTerminalPseudo := r.ReadCString(32)
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p.FeeTerminalPseudo = string(feeTerminalPseudo)
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p.FeeTerminalUserType = r.ReadByte()
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p.TpPid = r.ReadByte()
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p.TpUdhi = r.ReadByte()
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p.MsgFmt = r.ReadByte()
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msgSrc := r.ReadCString(6)
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p.MsgSrc = string(msgSrc)
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feeType := make([]byte, 2)
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r.ReadBytes(feeType)
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p.FeeType = string(feeType)
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feeCode := r.ReadCString(6)
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p.FeeCode = string(feeCode)
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validTime := r.ReadCString(17)
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p.ValidTime = string(validTime)
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atTime := r.ReadCString(17)
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p.AtTime = string(atTime)
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srcId := r.ReadCString(21)
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p.SrcId = string(srcId)
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srcPseudo := r.ReadCString(32)
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p.SrcPseudo = string(srcPseudo)
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p.SrcUserType = r.ReadByte()
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p.SrcType = r.ReadByte()
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p.DestUsrTl = r.ReadByte()
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for i := 0; i < int(p.DestUsrTl); i++ {
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destId := r.ReadCString(21)
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p.DestId = append(p.DestId, string(destId))
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}
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destPseudo := r.ReadCString(32)
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p.DestPseudo = string(destPseudo)
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p.DestUserType = r.ReadByte()
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p.MsgLength = r.ReadByte()
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msgContent := make([]byte, p.MsgLength)
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r.ReadBytes(msgContent)
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p.MsgContent = string(msgContent)
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linkId := r.ReadCString(20)
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p.LinkId = string(linkId)
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return r.Error()
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}
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// Pack packs the Cmpp3FwdRspPkt to bytes stream for server side.
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// Before calling Pack, you should initialize a Cmpp3FwdRspPkt variable
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// with correct field value.
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func (p *Cmpp3FwdRspPkt) Pack(seqId uint32) ([]byte, error) {
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var pktLen = Cmpp3FwdRspPktLen
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var w = newPacketWriter(pktLen)
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// Pack header
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w.WriteInt(binary.BigEndian, pktLen)
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w.WriteInt(binary.BigEndian, CMPP_FWD_RESP)
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w.WriteInt(binary.BigEndian, seqId)
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p.SeqId = seqId
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// Pack Body
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w.WriteInt(binary.BigEndian, p.MsgId)
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w.WriteByte(p.PkTotal)
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w.WriteByte(p.PkNumber)
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w.WriteInt(binary.BigEndian, p.Result)
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return w.Bytes()
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}
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// Unpack unpack the binary byte stream to a Cmpp3FwdRspPkt variable.
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// After unpack, you will get all value of fields in Cmpp3FwdRspPkt struct.
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func (p *Cmpp3FwdRspPkt) Unpack(data []byte) error {
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var r = newPacketReader(data)
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// Sequence Id
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r.ReadInt(binary.BigEndian, &p.SeqId)
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r.ReadInt(binary.BigEndian, &p.MsgId)
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p.PkTotal = r.ReadByte()
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p.PkNumber = r.ReadByte()
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r.ReadInt(binary.BigEndian, &p.Result)
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return r.Error()
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}
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