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package util
import (
"fmt"
"slices"
"strings"
"github.com/containers/common/libnetwork/types"
"github.com/containers/common/pkg/filters"
"github.com/containers/common/pkg/util"
)
func GenerateNetworkFilters(f map[string][]string) ([]types.FilterFunc, error) {
filterFuncs := make([]types.FilterFunc, 0, len(f))
for key, filterValues := range f {
filterFunc, err := createFilterFuncs(key, filterValues)
if err != nil {
return nil, err
}
filterFuncs = append(filterFuncs, filterFunc)
}
return filterFuncs, nil
}
func createFilterFuncs(key string, filterValues []string) (types.FilterFunc, error) {
switch strings.ToLower(key) {
case "name":
// matches one name, regex allowed
return func(net types.Network) bool {
return util.StringMatchRegexSlice(net.Name, filterValues)
}, nil
case types.Driver:
// matches network driver
return func(net types.Network) bool {
return slices.Contains(filterValues, net.Driver)
}, nil
case "id":
// matches part of one id
return func(net types.Network) bool {
return filters.FilterID(net.ID, filterValues)
}, nil
// TODO: add dns enabled, internal filter
}
return createPruneFilterFuncs(key, filterValues)
}
func GenerateNetworkPruneFilters(f map[string][]string) ([]types.FilterFunc, error) {
filterFuncs := make([]types.FilterFunc, 0, len(f))
for key, filterValues := range f {
filterFunc, err := createPruneFilterFuncs(key, filterValues)
if err != nil {
return nil, err
}
filterFuncs = append(filterFuncs, filterFunc)
}
return filterFuncs, nil
}
func createPruneFilterFuncs(key string, filterValues []string) (types.FilterFunc, error) {
switch strings.ToLower(key) {
case "label":
// matches all labels
return func(net types.Network) bool {
return filters.MatchLabelFilters(filterValues, net.Labels)
}, nil
case "label!":
return func(net types.Network) bool {
return filters.MatchNegatedLabelFilters(filterValues, net.Labels)
}, nil
case "until":
until, err := filters.ComputeUntilTimestamp(filterValues)
if err != nil {
return nil, err
}
return func(net types.Network) bool {
return net.Created.Before(until)
}, nil
default:
return nil, fmt.Errorf("invalid filter %q", key)
}
}
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