139 lines
3.1 KiB
Go
139 lines
3.1 KiB
Go
package app
|
|
|
|
import (
|
|
"fmt"
|
|
"log"
|
|
"os"
|
|
"regexp"
|
|
"strings"
|
|
"time"
|
|
|
|
"gopkg.in/yaml.v3"
|
|
)
|
|
|
|
type Conf struct {
|
|
Patterns map[string]string `yaml:"patterns"`
|
|
Streams map[string]*Stream `yaml:"streams"`
|
|
}
|
|
|
|
type Stream struct {
|
|
name string `yaml:"-"`
|
|
|
|
Cmd []string `yaml:"cmd"`
|
|
Filters map[string]*Filter `yaml:"filters"`
|
|
}
|
|
|
|
type Filter struct {
|
|
stream *Stream `yaml:"-"`
|
|
name string `yaml:"-"`
|
|
|
|
Regex []string `yaml:"regex"`
|
|
compiledRegex []regexp.Regexp `yaml:"-"`
|
|
patternName string `yaml:"-"`
|
|
patternWithBraces string `yaml:"-"`
|
|
|
|
Retry int `yaml:"retry"`
|
|
RetryPeriod string `yaml:"retry-period"`
|
|
retryDuration time.Duration `yaml:"-"`
|
|
|
|
Actions map[string]*Action `yaml:"actions"`
|
|
|
|
matches map[string][]time.Time `yaml:"-"`
|
|
}
|
|
|
|
type Action struct {
|
|
filter *Filter `yaml:"-"`
|
|
name string `yaml:"-"`
|
|
|
|
Cmd []string `yaml:"cmd"`
|
|
|
|
After string `yaml:"after"`
|
|
afterDuration time.Duration `yaml:"-"`
|
|
}
|
|
|
|
func (c *Conf) setup() {
|
|
for patternName, pattern := range c.Patterns {
|
|
c.Patterns[patternName] = fmt.Sprintf("(?P<%s>%s)", patternName, pattern)
|
|
}
|
|
for streamName := range c.Streams {
|
|
|
|
stream := c.Streams[streamName]
|
|
stream.name = streamName
|
|
|
|
for filterName := range stream.Filters {
|
|
|
|
filter := stream.Filters[filterName]
|
|
filter.stream = stream
|
|
filter.name = filterName
|
|
filter.matches = make(map[string][]time.Time)
|
|
|
|
// Parse Duration
|
|
retryDuration, err := time.ParseDuration(filter.RetryPeriod)
|
|
if err != nil {
|
|
log.Fatalln("Failed to parse time in configuration file:", err)
|
|
}
|
|
filter.retryDuration = retryDuration
|
|
|
|
// Compute Regexes
|
|
// Look for Patterns inside Regexes
|
|
for _, regex := range filter.Regex {
|
|
for patternName, pattern := range c.Patterns {
|
|
if strings.Contains(regex, patternName) {
|
|
|
|
switch filter.patternName {
|
|
case "":
|
|
filter.patternName = patternName
|
|
filter.patternWithBraces = fmt.Sprintf("<%s>", patternName)
|
|
case patternName:
|
|
// no op
|
|
default:
|
|
log.Fatalf(
|
|
"ERROR Can't mix different patterns (%s, %s) in same filter (%s.%s)\n",
|
|
filter.patternName, patternName, streamName, filterName,
|
|
)
|
|
}
|
|
|
|
regex = strings.Replace(regex, fmt.Sprintf("<%s>", patternName), pattern, 1)
|
|
}
|
|
}
|
|
filter.compiledRegex = append(filter.compiledRegex, *regexp.MustCompile(regex))
|
|
}
|
|
|
|
for actionName := range filter.Actions {
|
|
|
|
action := filter.Actions[actionName]
|
|
action.filter = filter
|
|
action.name = actionName
|
|
|
|
// Parse Duration
|
|
if action.After != "" {
|
|
afterDuration, err := time.ParseDuration(action.After)
|
|
if err != nil {
|
|
log.Fatalln("Failed to parse time in configuration file:", err)
|
|
}
|
|
action.afterDuration = afterDuration
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func parseConf(filename string) *Conf {
|
|
|
|
data, err := os.ReadFile(filename)
|
|
|
|
if err != nil {
|
|
log.Fatalln("Failed to read configuration file:", err)
|
|
}
|
|
|
|
var conf Conf
|
|
err = yaml.Unmarshal(data, &conf)
|
|
if err != nil {
|
|
log.Fatalln("Failed to parse configuration file:", err)
|
|
}
|
|
|
|
conf.setup()
|
|
|
|
return &conf
|
|
}
|