/
add.go
133 lines (108 loc) · 2.85 KB
/
add.go
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package config
import (
"fmt"
"net"
"net/url"
"os"
"regexp"
"github.com/containers/podman-tui/ui/utils"
"github.com/pkg/errors"
"github.com/rs/zerolog/log"
)
// Add adds new service connection.
func (c *Config) Add(name string, uri string, identity string) error {
log.Debug().Msgf("config: adding new service %s %s %s", name, uri, identity)
newService, err := validateNewService(name, uri, identity)
if err != nil {
return err
}
if err := c.add(name, newService); err != nil {
return err
}
if err := c.Write(); err != nil {
return err
}
return c.reload()
}
func (c *Config) add(name string, newService Service) error {
c.mu.Lock()
defer c.mu.Unlock()
for serviceName := range c.Services {
if serviceName == name {
return ErrDuplicatedServiceName
}
}
c.Services[name] = newService
return nil
}
// most of codes are from:
// https://github.com/containers/podman/blob/main/cmd/podman/system/connection/add.go.
func validateNewService(name string, dest string, identity string) (Service, error) { //nolint:cyclop
var (
service Service
serviceIdentity string
)
if name == "" {
return service, ErrEmptyServiceName
}
if dest == "" {
return service, ErrEmptyURIDestination
}
if match, err := regexp.Match("^[A-Za-z][A-Za-z0-9+.-]*://", []byte(dest)); err != nil { //nolint:mirror
return service, fmt.Errorf("%w invalid destition", err)
} else if !match {
dest = "ssh://" + dest
}
uri, err := url.Parse(dest)
if err != nil {
return service, err
}
switch uri.Scheme {
case "ssh":
if uri.User.Username() == "" {
if uri.User, err = getUserInfo(uri); err != nil {
return service, err
}
}
serviceIdentity, err = utils.ResolveHomeDir(identity)
if err != nil {
return service, err
}
if identity == "" {
return service, ErrEmptySSHIdentity
}
if uri.Port() == "" {
uri.Host = net.JoinHostPort(uri.Hostname(), "22")
}
if uri.Path == "" || uri.Path == "/" {
if uri.Path, err = getUDS(uri, serviceIdentity); err != nil {
return service, err
}
}
case "unix":
if identity != "" {
return service, fmt.Errorf("%w identity", ErrInvalidUnixSchemaOption)
}
info, err := os.Stat(uri.Path)
switch {
case errors.Is(err, os.ErrNotExist):
log.Warn().Msgf("config: %q does not exists", uri.Path)
case errors.Is(err, os.ErrPermission):
log.Warn().Msgf("config: You do not have permission to read %q", uri.Path)
case err != nil:
return service, err
case info.Mode()&os.ModeSocket == 0:
return service, fmt.Errorf("%w %q", ErrFileNotUnixSocket, uri.Path)
}
case "tcp":
if identity != "" {
return service, fmt.Errorf("%w identity", ErrInvalidTCPSchemaOption)
}
default:
return service, fmt.Errorf("%w %q", ErrInvalidURISchemaName, uri.Scheme)
}
service.Identity = serviceIdentity
service.URI = uri.String()
service.Default = false
return service, nil
}