78 lines
1.4 KiB
Go
78 lines
1.4 KiB
Go
package syslog
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import (
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"fmt"
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"regexp"
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"strconv"
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"strings"
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"time"
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)
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type SyslogMessage struct {
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Timestemp time.Time
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Hostname string
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Tag string
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Service int
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Content string
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Facility int
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Severity int
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}
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func Parse(binaryMsg []byte) *SyslogMessage {
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var err error
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msg := &SyslogMessage{}
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re := regexp.MustCompile("<([0-9]*)>(.*)")
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match := re.FindStringSubmatch(string(binaryMsg))
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prio, _ := strconv.Atoi(match[1])
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msg.Facility = prio / 8
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msg.Severity = prio % 8
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timeLength := len(time.RFC3339)
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if len(match[2]) > timeLength {
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msg.Timestemp, err = time.Parse(time.RFC3339, match[2][:timeLength])
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if err != nil {
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timeLength = 0
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}
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}
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timeLength = len(msg.Timestemp.Format(time.Stamp))
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if len(match[2]) > timeLength {
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msg.Timestemp, err = time.Parse(time.Stamp, match[2][:timeLength])
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if err != nil {
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timeLength = 0
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}
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}
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msg.Content = match[2][timeLength:]
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/*
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TODO: detect other parts in content
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- Hostname (if exists)
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- Tag
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- Service
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*/
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return msg
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}
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func (msg *SyslogMessage) Priority() int {
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return msg.Facility*8 + msg.Severity
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}
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func (msg *SyslogMessage) Dump() []byte {
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result := fmt.Sprintf("<%d>%s %s %s[%d]: %s",
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msg.Priority(),
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msg.Timestemp.Format(time.RFC3339),
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msg.Hostname,
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msg.Tag,
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msg.Service,
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msg.Content,
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)
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if !strings.HasSuffix(msg.Content, "\n") {
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result = fmt.Sprintf("%s\n", result)
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}
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return []byte(result)
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}
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