130 lines
3.2 KiB
Go
130 lines
3.2 KiB
Go
package config
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import (
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"encoding/json"
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"fmt"
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"os"
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"regexp"
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"time"
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"github.com/genofire/logmania/log"
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)
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type NotifyState struct {
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Hostname map[string]string `json:"hostname"`
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HostTo map[string]map[string]bool `json:"host_to"`
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MaxPrioIn map[string]log.LogLevel `json:"maxLevel"`
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RegexIn map[string]map[string]*regexp.Regexp `json:"regexIn"`
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Lastseen map[string]time.Time `json:"lastseen,omitempty"`
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LastseenNotify map[string]time.Time `json:"lastseen_notify,omitempty"`
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}
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func (state *NotifyState) SendTo(e *log.Entry) []string {
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if to, ok := state.HostTo[e.Hostname]; ok {
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state.Lastseen[e.Hostname] = time.Now()
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var toList []string
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for toEntry, _ := range to {
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if lvl := state.MaxPrioIn[toEntry]; e.Level < lvl {
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continue
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}
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if regex, ok := state.RegexIn[toEntry]; ok {
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stopForTo := false
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for _, expr := range regex {
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if expr.MatchString(e.Text) {
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stopForTo = true
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continue
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}
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}
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if stopForTo {
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continue
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}
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}
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toList = append(toList, toEntry)
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}
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if hostname, ok := state.Hostname[e.Hostname]; ok {
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e.Hostname = hostname
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}
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return toList
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} else {
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state.HostTo[e.Hostname] = make(map[string]bool)
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}
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return nil
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}
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func (state *NotifyState) AddRegex(to, expression string) error {
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regex, err := regexp.Compile(expression)
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if err == nil {
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if _, ok := state.RegexIn[to]; !ok {
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state.RegexIn[to] = make(map[string]*regexp.Regexp)
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}
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state.RegexIn[to][expression] = regex
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return nil
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}
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return err
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}
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func ReadStateFile(path string) *NotifyState {
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var state NotifyState
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if f, err := os.Open(path); err == nil { // transform data to legacy meshviewer
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if err = json.NewDecoder(f).Decode(&state); err == nil {
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fmt.Println("loaded", len(state.HostTo), "hosts")
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if state.Lastseen == nil {
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state.Lastseen = make(map[string]time.Time)
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}
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if state.LastseenNotify == nil {
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state.LastseenNotify = make(map[string]time.Time)
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}
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if state.RegexIn == nil {
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state.RegexIn = make(map[string]map[string]*regexp.Regexp)
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} else {
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for to, regexs := range state.RegexIn {
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for exp, _ := range regexs {
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state.AddRegex(to, exp)
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}
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}
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}
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return &state
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} else {
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fmt.Println("failed to unmarshal nodes:", err)
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}
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} else {
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fmt.Println("failed to open state notify file: ", path, ":", err)
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}
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return &NotifyState{
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Hostname: make(map[string]string),
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HostTo: make(map[string]map[string]bool),
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MaxPrioIn: make(map[string]log.LogLevel),
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RegexIn: make(map[string]map[string]*regexp.Regexp),
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Lastseen: make(map[string]time.Time),
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LastseenNotify: make(map[string]time.Time),
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}
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}
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func (state *NotifyState) Saver(path string) {
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c := time.Tick(time.Minute)
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for range c {
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state.SaveJSON(path)
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}
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}
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// SaveJSON to path
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func (state *NotifyState) SaveJSON(outputFile string) {
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tmpFile := outputFile + ".tmp"
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f, err := os.OpenFile(tmpFile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0644)
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if err != nil {
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log.Panic(err)
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}
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err = json.NewEncoder(f).Encode(state)
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if err != nil {
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log.Panic(err)
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}
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f.Close()
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if err := os.Rename(tmpFile, outputFile); err != nil {
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log.Panic(err)
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}
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}
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