overflow_discovery/service/matcher/imap/imap.go

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2017-11-21 12:47:55 +00:00
package imap
import (
"git.loafle.net/overflow/overflow_discovery/service/matcher"
)
const (
PRE_COMPARE_STR = "* OK"
SEND_COMPARE_STR = "* BYE"
)
type IMAPMatcher struct {
matcher.Matchers
}
func (i *IMAPMatcher) ServiceName() string {
return "IMAP"
}
func (i *IMAPMatcher) IsPrePacket() bool {
return true
}
func (i *IMAPMatcher) HasResponse(index int) bool {
return true
}
func (i *IMAPMatcher) IsError(info matcher.MatchInfo, index int, packet *matcher.Packet) bool {
return false
}
func (i *IMAPMatcher) Match(info matcher.MatchInfo, index int, packet *matcher.Packet) bool {
switch index {
case 0:
recvStr := string(packet.Buffer)
if len(recvStr) < 3 {
return false
}
compareStr := recvStr[0:4]
if compareStr == PRE_COMPARE_STR {
return true
}
case 1:
recvStr := string(packet.Buffer)
if len(recvStr) < 5 {
return false
}
compareStr := recvStr[0:5]
if compareStr == SEND_COMPARE_STR {
return true
}
}
return false
}
func NewMatcher() matcher.Matcher {
m := &IMAPMatcher{}
reqStr := "A0001 LOGOUT\r\n"
byte := make([]byte, len(reqStr))
copy(byte[:], reqStr)
m.AddPacket(matcher.NewPacket(byte, len(reqStr)))
return m
}