server-client "show" reimplemented
Bug → expired matches are still present
This commit is contained in:
ppom
parent
a30a6644dc
commit
b6d7e5a946
@ -8,10 +8,12 @@ import (
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"net"
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"os"
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"regexp"
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"gopkg.in/yaml.v3"
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)
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const (
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Query = 0
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Show = 0
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Flush = 1
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)
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@ -22,7 +24,7 @@ type Request struct {
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type Response struct {
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Err error
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Actions ReadableMap
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ClientStatus ClientStatus
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Number int
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}
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@ -31,6 +33,7 @@ func SendAndRetrieve(data Request) Response {
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if err != nil {
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log.Fatalln("Error opening connection top daemon:", err)
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}
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defer conn.Close()
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err = gob.NewEncoder(conn).Encode(data)
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if err != nil {
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@ -45,19 +48,60 @@ func SendAndRetrieve(data Request) Response {
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return response
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}
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type PatternStatus struct {
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Matches int `yaml:"matches_since_last_trigger"`
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Actions map[string][]string `yaml:"pending_actions"`
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}
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type MapPatternStatus map[string]*PatternStatus
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type ClientStatus map[string]map[string]MapPatternStatus
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// This block is made to hide pending_actions when empty
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// and matches_since_last_trigger when zero
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type FullPatternStatus PatternStatus
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type MatchesStatus struct {
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Matches int `yaml:"matches_since_last_trigger"`
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}
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type ActionsStatus struct {
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Actions map[string][]string `yaml:"pending_actions"`
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}
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func (mps MapPatternStatus) MarshalYAML() (interface{}, error) {
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ret := make(map[string]interface{})
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for k, v := range mps {
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if v.Matches == 0 {
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if len(v.Actions) != 0 {
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ret[k] = ActionsStatus{v.Actions}
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}
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} else {
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if len(v.Actions) != 0 {
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ret[k] = v
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} else {
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ret[k] = MatchesStatus{v.Matches}
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}
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}
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}
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return ret, nil
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}
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// end block
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func usage(err string) {
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fmt.Println("Usage: reactionc")
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fmt.Println("Usage: reactionc flush <PATTERN>")
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log.Fatalln(err)
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}
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func ClientQuery(streamfilter string) {
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response := SendAndRetrieve(Request{Query, streamfilter})
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func ClientShow(streamfilter string) {
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response := SendAndRetrieve(Request{Show, streamfilter})
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if response.Err != nil {
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log.Fatalln("Received error from daemon:", response.Err)
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os.Exit(1)
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}
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fmt.Println(response.Actions.ToString())
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text, err := yaml.Marshal(response.ClientStatus)
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if err != nil {
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log.Fatalln("Failed to convert daemon binary response to text format:", err)
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}
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fmt.Println(string(text))
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os.Exit(0)
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}
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@ -90,7 +90,6 @@ func (a *Action) exec(match string) {
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}
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func ActionsManager() {
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actions := make(ActionsMap)
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pendingActionsC := make(chan PAT)
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var (
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pat PAT
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@ -111,12 +110,14 @@ func ActionsManager() {
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wgActions.Add(1)
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go action.exec(match)
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} else {
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actionsLock.Lock()
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// make sure map exists
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if actions[action] == nil {
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actions[action] = make(PatternTimes)
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}
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// append() to nil is valid go
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actions[action][match] = append(actions[action][match], then)
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actionsLock.Unlock()
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go func(pat PAT, now time.Time) {
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time.Sleep(pat.t.Sub(now))
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pendingActionsC <- pat
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@ -125,10 +126,13 @@ func ActionsManager() {
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case pat = <-pendingActionsC:
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match = pat.p
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action = pat.a
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actionsLock.Lock()
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actions[action][match] = actions[action][match][1:]
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actionsLock.Unlock()
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wgActions.Add(1)
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go action.exec(match)
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case _, _ = <-stopActions:
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actionsLock.Lock()
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for action := range actions {
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if action.OnExit {
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for match := range actions[action] {
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@ -137,6 +141,7 @@ func ActionsManager() {
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}
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}
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}
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actionsLock.Unlock()
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wgActions.Done()
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return
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}
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@ -144,7 +149,6 @@ func ActionsManager() {
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}
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func MatchesManager() {
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matches := make(MatchesMap)
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var pf PF
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var pft PFT
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end := false
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@ -157,7 +161,7 @@ func MatchesManager() {
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if !ok {
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end = true
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} else {
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_ = matchesManagerHandleMatch(matches, pft)
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_ = matchesManagerHandleMatch(pft)
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}
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}
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}
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@ -165,19 +169,23 @@ func MatchesManager() {
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for {
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select {
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case pf = <-cleanMatchesC:
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matchesLock.Lock()
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delete(matches[pf.f], pf.p)
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matchesLock.Unlock()
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case pft = <-matchesC:
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entry := LogEntry{pft.t, pft.p, pft.f.stream.name, pft.f.name, false}
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entry.Exec = matchesManagerHandleMatch(matches, pft)
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matchesLock.Lock()
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entry.Exec = matchesManagerHandleMatch(pft)
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matchesLock.Unlock()
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logsC <- entry
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}
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}
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}
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func matchesManagerHandleMatch(matches MatchesMap, pft PFT) bool {
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func matchesManagerHandleMatch(pft PFT) bool {
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filter, match, then := pft.f, pft.p, pft.t
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if filter.Retry > 1 {
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@ -229,9 +237,13 @@ func StreamManager(s *Stream, endedSignal chan *Stream) {
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}
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var actions ActionsMap
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var matches MatchesMap
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var actionsLock sync.Mutex
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var matchesLock sync.Mutex
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var stopStreams chan bool
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var stopActions chan bool
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var actionStore ActionStore
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var wgActions sync.WaitGroup
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var wgStreams sync.WaitGroup
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@ -254,8 +266,6 @@ var cleanMatchesC chan PF
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var actionsC chan PAT
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func Daemon(confFilename string) {
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actionStore.store = make(ActionMap)
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conf := parseConf(confFilename)
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logsC = make(chan LogEntry)
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@ -266,6 +276,8 @@ func Daemon(confFilename string) {
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actionsC = make(chan PAT)
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stopActions = make(chan bool)
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stopStreams = make(chan bool)
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actions = make(ActionsMap)
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matches = make(MatchesMap)
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go DatabaseManager(conf)
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go MatchesManager()
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@ -311,7 +323,6 @@ func quit() {
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// send stop to ActionsManager
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close(stopActions)
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// stop all actions
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actionStore.Quit()
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log.Println("INFO Waiting for Actions to finish...")
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wgActions.Wait()
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// delete pipe
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@ -146,7 +146,7 @@ func Main() {
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os.Exit(1)
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}
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// f.Arg(0) is "" if there is no remaining argument
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ClientQuery(*limit)
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ClientShow(*limit)
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case "flush":
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SocketPath = addSocketFlag(f)
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159
app/pipe.go
159
app/pipe.go
@ -6,115 +6,58 @@ import (
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"net"
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"os"
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"path"
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"sync"
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"time"
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"gopkg.in/yaml.v3"
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)
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type ActionMap map[string]map[*Action]map[chan bool]bool
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type ReadableMap map[string]map[string]map[string]int
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func genClientStatus() ClientStatus {
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cs := make(ClientStatus)
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matchesLock.Lock()
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type ActionStore struct {
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store ActionMap
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mutex sync.Mutex
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// Painful data manipulation
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for filter, filterMatches := range matches {
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if cs[filter.stream.name] == nil {
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cs[filter.stream.name] = make(map[string]MapPatternStatus)
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}
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if cs[filter.stream.name][filter.name] == nil {
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cs[filter.stream.name][filter.name] = make(MapPatternStatus)
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}
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for pattern, patternMatches := range filterMatches {
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var ps PatternStatus
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cs[filter.stream.name][filter.name][pattern] = &ps
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ps.Matches = len(patternMatches)
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}
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}
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matchesLock.Unlock()
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actionsLock.Lock()
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// Painful data manipulation
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for action, pendingActions := range actions {
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if cs[action.filter.stream.name] == nil {
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cs[action.filter.stream.name] = make(map[string]MapPatternStatus)
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}
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if cs[action.filter.stream.name][action.filter.name] == nil {
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cs[action.filter.stream.name][action.filter.name] = make(MapPatternStatus)
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}
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for pattern, patternPendingActions := range pendingActions {
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if cs[action.filter.stream.name][action.filter.name][pattern] == nil {
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var ps PatternStatus
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cs[action.filter.stream.name][action.filter.name][pattern] = &ps
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}
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var ps *PatternStatus
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ps = cs[action.filter.stream.name][action.filter.name][pattern]
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ps.Actions = make(map[string][]string)
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for _, t := range patternPendingActions {
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ps.Actions[action.name] = append(ps.Actions[action.name], t.Format(time.DateTime))
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}
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}
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}
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actionsLock.Unlock()
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return cs
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}
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// Called by an Action before entering sleep
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func (a *ActionStore) Register(action *Action, pattern string) chan bool {
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a.mutex.Lock()
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defer a.mutex.Unlock()
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if a.store[pattern] == nil {
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a.store[pattern] = make(map[*Action]map[chan bool]bool)
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}
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if a.store[pattern][action] == nil {
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a.store[pattern][action] = make(map[chan bool]bool)
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}
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sig := make(chan bool)
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a.store[pattern][action][sig] = true
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return sig
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}
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// Called by an Action after sleep
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func (a *ActionStore) Unregister(action *Action, pattern string, sig chan bool) {
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a.mutex.Lock()
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defer a.mutex.Unlock()
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if a.store[pattern] == nil || a.store[pattern][action] == nil || len(a.store[pattern][action]) == 0 {
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return
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}
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close(sig)
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delete(a.store[pattern][action], sig)
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}
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// Called by Main
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func (a *ActionStore) Quit() {
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a.mutex.Lock()
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defer a.mutex.Unlock()
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for _, actions := range a.store {
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for action, sigs := range actions {
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for sig := range sigs {
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sig <- action.OnExit
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}
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}
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}
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a.store = make(ActionMap)
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}
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// Called by a CLI
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func (a *ActionStore) Flush(pattern string) int {
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var cpt int
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a.mutex.Lock()
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defer a.mutex.Unlock()
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if a.store[pattern] != nil {
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for _, action := range a.store[pattern] {
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for sig := range action {
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sig <- true
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}
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cpt++
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}
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}
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delete(a.store, pattern)
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flushesC <- LogEntry{time.Now(), pattern, "", "", false}
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return cpt
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}
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// Called by a CLI
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func (a *ActionStore) pendingActions() ReadableMap {
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a.mutex.Lock()
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defer a.mutex.Unlock()
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return a.store.ToReadable()
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}
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func (a ActionMap) ToReadable() ReadableMap {
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res := make(ReadableMap)
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for pattern, actions := range a {
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for action := range actions {
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filter := action.filter.name
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stream := action.filter.stream.name
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if res[stream] == nil {
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res[stream] = make(map[string]map[string]int)
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}
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if res[stream][filter] == nil {
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res[stream][filter] = make(map[string]int)
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}
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res[stream][filter][pattern] = res[stream][filter][pattern] + 1
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}
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}
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return res
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}
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func (r ReadableMap) ToString() string {
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text, err := yaml.Marshal(r)
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if err != nil {
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log.Fatalln(err)
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}
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return string(text)
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}
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// Socket-related, server-related functions
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func createOpenSocket() net.Listener {
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err := os.MkdirAll(path.Dir(*SocketPath), 0755)
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if err != nil {
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@ -146,6 +89,7 @@ func SocketManager() {
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continue
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}
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go func(conn net.Conn) {
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defer conn.Close()
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var request Request
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var response Response
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@ -156,16 +100,17 @@ func SocketManager() {
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}
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switch request.Request {
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case Query:
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response.Actions = actionStore.store.ToReadable()
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case Show:
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response.ClientStatus = genClientStatus()
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case Flush:
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response.Number = actionStore.Flush(request.Pattern)
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// FIXME reimplement flush
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response.Number = 0
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default:
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log.Println("ERROR Invalid Message from cli: unrecognised Request type")
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return
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}
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gob.NewEncoder(conn).Encode(response)
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err = gob.NewEncoder(conn).Encode(response)
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if err != nil {
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log.Println("ERROR Can't respond to cli:", err)
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return
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@ -2,20 +2,24 @@
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patterns:
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num:
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regex: '[0-9]+'
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ip:
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regex: '(?:(?:[0-9]{1,3}\.){3}[0-9]{1,3})|(?:[0-9a-fA-F:]{2,90})'
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ignore:
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- 1.0.0.1
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streams:
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tailDown:
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cmd: [ "sh", "-c", "sleep 0.5; echo found 1; sleep 1; echo found 1; sleep 10" ]
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tailDown1:
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cmd: [ "sh", "-c", "echo 1 2 3 4 5 1 2 3 4 5 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 | tr ' ' '\n' | while read i; do sleep 2; echo found $(($i % 10)); done" ]
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filters:
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findIP:
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regex:
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- '^found <num>$'
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retry: 2
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retry-period: 1m
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retry: 3
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retry-period: 30s
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actions:
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damn:
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cmd: [ "echo", "<num>" ]
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undamn:
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cmd: [ "echo", "undamn", "<num>" ]
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after: 5s
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after: 30s
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onexit: true
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