93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
package network // import "github.com/docker/docker/daemon/network"
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import (
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/filters"
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"github.com/docker/docker/runconfig"
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"github.com/pkg/errors"
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)
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// FilterNetworks filters network list according to user specified filter
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// and returns user chosen networks
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func FilterNetworks(nws []types.NetworkResource, filter filters.Args) ([]types.NetworkResource, error) {
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// if filter is empty, return original network list
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if filter.Len() == 0 {
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return nws, nil
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}
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displayNet := nws[:0]
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for _, nw := range nws {
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if filter.Contains("driver") {
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if !filter.ExactMatch("driver", nw.Driver) {
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continue
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}
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}
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if filter.Contains("name") {
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if !filter.Match("name", nw.Name) {
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continue
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}
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}
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if filter.Contains("id") {
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if !filter.Match("id", nw.ID) {
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continue
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}
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}
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if filter.Contains("label") {
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if !filter.MatchKVList("label", nw.Labels) {
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continue
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}
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}
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if filter.Contains("scope") {
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if !filter.ExactMatch("scope", nw.Scope) {
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continue
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}
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}
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if filter.Contains("idOrName") {
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if !filter.Match("name", nw.Name) && !filter.Match("id", nw.Name) {
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continue
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}
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}
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displayNet = append(displayNet, nw)
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}
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if filter.Contains("type") {
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typeNet := []types.NetworkResource{}
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errFilter := filter.WalkValues("type", func(fval string) error {
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passList, err := filterNetworkByType(displayNet, fval)
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if err != nil {
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return err
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}
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typeNet = append(typeNet, passList...)
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return nil
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})
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if errFilter != nil {
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return nil, errFilter
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}
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displayNet = typeNet
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}
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return displayNet, nil
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}
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func filterNetworkByType(nws []types.NetworkResource, netType string) ([]types.NetworkResource, error) {
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retNws := []types.NetworkResource{}
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switch netType {
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case "builtin":
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for _, nw := range nws {
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if runconfig.IsPreDefinedNetwork(nw.Name) {
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retNws = append(retNws, nw)
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}
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}
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case "custom":
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for _, nw := range nws {
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if !runconfig.IsPreDefinedNetwork(nw.Name) {
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retNws = append(retNws, nw)
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}
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}
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default:
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return nil, errors.Errorf("invalid filter: 'type'='%s'", netType)
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}
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return retNws, nil
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}
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