57 lines
1.4 KiB
Go
57 lines
1.4 KiB
Go
package aghnet
|
|
|
|
import (
|
|
"strings"
|
|
|
|
"github.com/AdguardTeam/urlfilter"
|
|
"github.com/AdguardTeam/urlfilter/filterlist"
|
|
"golang.org/x/exp/slices"
|
|
)
|
|
|
|
// IgnoreEngine contains the list of rules for ignoring hostnames and matches
|
|
// them.
|
|
//
|
|
// TODO(s.chzhen): Move all urlfilter stuff to aghfilter.
|
|
type IgnoreEngine struct {
|
|
// engine is the filtering engine that can match rules for ignoring
|
|
// hostnames.
|
|
engine *urlfilter.DNSEngine
|
|
|
|
// ignored is the list of rules for ignoring hostnames.
|
|
ignored []string
|
|
}
|
|
|
|
// NewIgnoreEngine creates a new instance of the IgnoreEngine and stores the
|
|
// list of rules for ignoring hostnames.
|
|
func NewIgnoreEngine(ignored []string) (e *IgnoreEngine, err error) {
|
|
ruleList := &filterlist.StringRuleList{
|
|
RulesText: strings.ToLower(strings.Join(ignored, "\n")),
|
|
IgnoreCosmetic: true,
|
|
}
|
|
ruleStorage, err := filterlist.NewRuleStorage([]filterlist.RuleList{ruleList})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &IgnoreEngine{
|
|
engine: urlfilter.NewDNSEngine(ruleStorage),
|
|
ignored: ignored,
|
|
}, nil
|
|
}
|
|
|
|
// Has returns true if IgnoreEngine matches the host.
|
|
func (e *IgnoreEngine) Has(host string) (ignore bool) {
|
|
if e == nil {
|
|
return false
|
|
}
|
|
|
|
_, ignore = e.engine.Match(host)
|
|
|
|
return ignore
|
|
}
|
|
|
|
// Values returns a copy of list of rules for ignoring hostnames.
|
|
func (e *IgnoreEngine) Values() (ignored []string) {
|
|
return slices.Clone(e.ignored)
|
|
}
|