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path: root/pkg/bindings/network/network.go
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package network

import (
	"context"
	"net/http"
	"net/url"
	"strings"

	"github.com/containers/podman/v2/pkg/bindings"
	"github.com/containers/podman/v2/pkg/domain/entities"
	jsoniter "github.com/json-iterator/go"
)

// Create makes a new CNI network configuration
func Create(ctx context.Context, options *CreateOptions) (*entities.NetworkCreateReport, error) {
	var report entities.NetworkCreateReport
	if options == nil {
		options = new(CreateOptions)
	}
	conn, err := bindings.GetClient(ctx)
	if err != nil {
		return nil, err
	}
	params := url.Values{}
	if options.Name != nil {
		params.Set("name", options.GetName())
	}
	networkConfig, err := jsoniter.MarshalToString(options)
	if err != nil {
		return nil, err
	}
	stringReader := strings.NewReader(networkConfig)
	response, err := conn.DoRequest(stringReader, http.MethodPost, "/networks/create", params, nil)
	if err != nil {
		return nil, err
	}
	return &report, response.Process(&report)
}

// Inspect returns low level information about a CNI network configuration
func Inspect(ctx context.Context, nameOrID string, options *InspectOptions) ([]entities.NetworkInspectReport, error) {
	var reports []entities.NetworkInspectReport
	if options == nil {
		options = new(InspectOptions)
	}
	_ = options
	conn, err := bindings.GetClient(ctx)
	if err != nil {
		return nil, err
	}
	response, err := conn.DoRequest(nil, http.MethodGet, "/networks/%s/json", nil, nil, nameOrID)
	if err != nil {
		return nil, err
	}
	return reports, response.Process(&reports)
}

// Remove deletes a defined CNI network configuration by name.  The optional force boolean
// will remove all containers associated with the network when set to true.  A slice
// of NetworkRemoveReports are returned.
func Remove(ctx context.Context, nameOrID string, options *RemoveOptions) ([]*entities.NetworkRmReport, error) {
	var reports []*entities.NetworkRmReport
	if options == nil {
		options = new(RemoveOptions)
	}
	conn, err := bindings.GetClient(ctx)
	if err != nil {
		return nil, err
	}
	params, err := options.ToParams()
	if err != nil {
		return nil, err
	}
	response, err := conn.DoRequest(nil, http.MethodDelete, "/networks/%s", params, nil, nameOrID)
	if err != nil {
		return nil, err
	}
	return reports, response.Process(&reports)
}

// List returns a summary of all CNI network configurations
func List(ctx context.Context, options *ListOptions) ([]*entities.NetworkListReport, error) {
	var (
		netList []*entities.NetworkListReport
	)
	if options == nil {
		options = new(ListOptions)
	}
	conn, err := bindings.GetClient(ctx)
	if err != nil {
		return nil, err
	}
	params, err := options.ToParams()
	if err != nil {
		return nil, err
	}
	response, err := conn.DoRequest(nil, http.MethodGet, "/networks/json", params, nil)
	if err != nil {
		return netList, err
	}
	return netList, response.Process(&netList)
}

// Disconnect removes a container from a given network
func Disconnect(ctx context.Context, networkName string, ContainerNameOrId string, options *DisconnectOptions) error {
	if options == nil {
		options = new(DisconnectOptions)
	}
	conn, err := bindings.GetClient(ctx)
	if err != nil {
		return err
	}
	// No params are used for disconnect
	params := url.Values{}
	// Disconnect sends everything in body
	disconnect := struct {
		Container string
		Force     bool
	}{
		Container: ContainerNameOrId,
	}
	if force := options.GetForce(); options.Changed("Force") {
		disconnect.Force = force
	}

	body, err := jsoniter.MarshalToString(disconnect)
	if err != nil {
		return err
	}
	stringReader := strings.NewReader(body)
	response, err := conn.DoRequest(stringReader, http.MethodPost, "/networks/%s/disconnect", params, nil, networkName)
	if err != nil {
		return err
	}
	return response.Process(nil)
}

// Connect adds a container to a network
func Connect(ctx context.Context, networkName string, ContainerNameOrId string, options *ConnectOptions) error {
	if options == nil {
		options = new(ConnectOptions)
	}
	conn, err := bindings.GetClient(ctx)
	if err != nil {
		return err
	}
	// No params are used in connect
	params := url.Values{}
	// Connect sends everything in body
	connect := struct {
		Container string
		Aliases   []string
	}{
		Container: ContainerNameOrId,
	}
	if aliases := options.GetAliases(); options.Changed("Aliases") {
		connect.Aliases = aliases
	}
	body, err := jsoniter.MarshalToString(connect)
	if err != nil {
		return err
	}
	stringReader := strings.NewReader(body)
	response, err := conn.DoRequest(stringReader, http.MethodPost, "/networks/%s/connect", params, nil, networkName)
	if err != nil {
		return err
	}
	return response.Process(nil)
}