82 lines
1.5 KiB
Go
82 lines
1.5 KiB
Go
package http
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import (
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"strings"
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cnsm "git.loafle.net/commons_go/network_service_matcher"
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)
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type HTTPMatcher struct {
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cnsm.Matchers
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}
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func (h *HTTPMatcher) ServiceName() string {
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return "HTTP"
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}
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func (h *HTTPMatcher) IsPrePacket() bool {
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return false
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}
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func (h *HTTPMatcher) HasResponse(index int) bool {
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return true
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}
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func (h *HTTPMatcher) IsError(info cnsm.MatchInfo, index int, packet *cnsm.Packet) bool {
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return false
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}
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func (h *HTTPMatcher) Match(info cnsm.MatchInfo, index int, packet *cnsm.Packet) bool {
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result := false
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if packet == nil || packet.Buffer == nil || packet.Len == 0 {
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return result
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}
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str := string(packet.Buffer)
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//fmt.Println(str)
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elems := strings.Split(str, "\r\n")
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if len(elems) <= 0 {
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return result
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}
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protocol := (elems[0])[:8]
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httpv0 := strings.Compare(protocol, "HTTP/1.0")
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httpv1 := strings.Compare(protocol, "HTTP/1.1")
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httpv2 := strings.Compare(protocol, "HTTP/1.2")
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if 0 == httpv0 || 0 == httpv1 || 0 == httpv2 {
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result = true
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}
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serverName := "Unknown Server"
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for _, valueStr := range elems {
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tempElems := strings.Split(valueStr, ":")
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if 0 == strings.Compare(tempElems[0], "Server") {
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serverName = tempElems[1]
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break
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}
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}
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strings.Compare(serverName, "Unknown")
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//fmt.Println("HTTP Server Name: ", serverName)
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return result
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}
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func NewMatcher() cnsm.Matcher {
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m := &HTTPMatcher{}
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reqStr := "GET / HTTP/1.1\r\n\r\n"
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byte := make([]byte, len(reqStr))
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copy(byte[:], reqStr)
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m.AddPacket(cnsm.NewPacket(byte, len(reqStr)))
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return m
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}
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