65 lines
1.1 KiB
Go
65 lines
1.1 KiB
Go
package netshovel
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import (
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"fmt"
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"sort"
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"strings"
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"time"
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"github.com/dirtbags/netshovel/gapstring"
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)
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type Packet struct {
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Opcode int
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Description string
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When time.Time
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Payload gapstring.GapString
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Fields map[string]string
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}
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var never = time.Unix(0, 0)
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func NewPacket() Packet {
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return Packet{
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Opcode: -1,
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Description: "Undefined",
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When: never,
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Payload: gapstring.GapString{},
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Fields: map[string]string{},
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}
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}
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func (pkt *Packet) Name() string {
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return "Generic"
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}
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func (pkt *Packet) Describe() string {
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out := new(strings.Builder)
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fmt.Fprintf(out, "%s %s %d: %s\n",
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pkt.When.UTC().Format(time.RFC3339Nano),
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pkt.Name(),
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pkt.Opcode,
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pkt.Description,
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)
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for _, k := range pkt.Keys() {
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fmt.Fprintf(out, " %s: %s\n", k, pkt.Fields[k])
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}
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fmt.Fprint(out, pkt.Payload.Hexdump())
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return out.String()
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}
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func (pkt *Packet) Set(key, value string) {
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pkt.Fields[key] = value
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}
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func (pkt *Packet) Keys() []string{
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keys := make([]string, len(pkt.Fields))
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i := 0
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for k := range(pkt.Fields) {
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keys[i] = k
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i += 1
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}
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sort.Strings(keys)
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return keys
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}
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