100 lines
2.5 KiB
Go
100 lines
2.5 KiB
Go
package parser
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"path"
|
|
|
|
"github.com/crowdsecurity/crowdsec/pkg/csconfig"
|
|
|
|
"github.com/crowdsecurity/grokky"
|
|
log "github.com/sirupsen/logrus"
|
|
)
|
|
|
|
type UnixParserCtx struct {
|
|
Grok grokky.Host
|
|
Stages []string
|
|
Profiling bool
|
|
DataFolder string
|
|
}
|
|
|
|
type Parsers struct {
|
|
Ctx *UnixParserCtx
|
|
Povfwctx *UnixParserCtx
|
|
StageFiles []Stagefile
|
|
PovfwStageFiles []Stagefile
|
|
Nodes []Node
|
|
Povfwnodes []Node
|
|
EnricherCtx EnricherCtx
|
|
}
|
|
|
|
func Init(c map[string]interface{}) (*UnixParserCtx, error) {
|
|
r := UnixParserCtx{}
|
|
r.Grok = grokky.NewBase()
|
|
files, err := ioutil.ReadDir(c["patterns"].(string))
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
r.DataFolder = c["data"].(string)
|
|
for _, f := range files {
|
|
if err := r.Grok.AddFromFile(path.Join(c["patterns"].(string), f.Name())); err != nil {
|
|
log.Errorf("failed to load pattern %s : %v", f.Name(), err)
|
|
return nil, err
|
|
}
|
|
}
|
|
log.Debugf("Loaded %d pattern files", len(files))
|
|
return &r, nil
|
|
}
|
|
|
|
func LoadParsers(cConfig *csconfig.Config, parsers *Parsers) (*Parsers, error) {
|
|
var err error
|
|
|
|
patternsDir := path.Join(cConfig.Crowdsec.ConfigDir, "patterns/")
|
|
log.Infof("Loading grok library %s", patternsDir)
|
|
/* load base regexps for two grok parsers */
|
|
parsers.Ctx, err = Init(map[string]interface{}{"patterns": patternsDir,
|
|
"data": cConfig.Crowdsec.DataDir})
|
|
if err != nil {
|
|
return parsers, fmt.Errorf("failed to load parser patterns : %v", err)
|
|
}
|
|
parsers.Povfwctx, err = Init(map[string]interface{}{"patterns": patternsDir,
|
|
"data": cConfig.Crowdsec.DataDir})
|
|
if err != nil {
|
|
return parsers, fmt.Errorf("failed to load postovflw parser patterns : %v", err)
|
|
}
|
|
|
|
/*
|
|
Load enrichers
|
|
*/
|
|
log.Infof("Loading enrich plugins")
|
|
|
|
parsers.EnricherCtx, err = Loadplugin(cConfig.Crowdsec.DataDir)
|
|
if err != nil {
|
|
return parsers, fmt.Errorf("Failed to load enrich plugin : %v", err)
|
|
}
|
|
|
|
/*
|
|
Load the actual parsers
|
|
*/
|
|
|
|
log.Infof("Loading parsers %d stages", len(parsers.StageFiles))
|
|
|
|
parsers.Nodes, err = LoadStages(parsers.StageFiles, parsers.Ctx, parsers.EnricherCtx)
|
|
if err != nil {
|
|
return parsers, fmt.Errorf("failed to load parser config : %v", err)
|
|
}
|
|
|
|
log.Infof("Loading postoverflow Parsers")
|
|
parsers.Povfwnodes, err = LoadStages(parsers.PovfwStageFiles, parsers.Povfwctx, parsers.EnricherCtx)
|
|
|
|
if err != nil {
|
|
return parsers, fmt.Errorf("failed to load postoverflow config : %v", err)
|
|
}
|
|
|
|
if cConfig.Prometheus != nil && cConfig.Prometheus.Enabled {
|
|
parsers.Ctx.Profiling = true
|
|
parsers.Povfwctx.Profiling = true
|
|
}
|
|
|
|
return parsers, nil
|
|
}
|