luzifer/publish-vod
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Do some refactoring, add limiting of uploaders

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Signed-off-by: Knut Ahlers <knut@ahlers.me>
This commit is contained in:
Knut Ahlers 2024-04-01 13:02:07 +02:00
parent 0b11c9d450
commit 7ff74d6e1a
Signed by: luzifer
SSH Key Fingerprint: SHA256:/xtE5lCgiRDQr8SLxHMS92ZBlACmATUmF1crK16Ks4E
9 changed files with 147 additions and 69 deletions
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6
README.md
View File

@ -11,14 +11,16 @@ Or you create a config for this tool and start one command which then concurrent
uploaders:
- name: Example SFTP
myhost:
name: Example SFTP
type: sftp
settings:
host: hostname:port
path: /where/to/put/the/file
user: someoneimportant
- name: Example Youtube
mychannel:
name: Example Youtube
type: youtube
settings:
channel: the ID of your channel found in its link

117
main.go
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@ -13,15 +13,17 @@ import (
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/Luzifer/go_helpers/v2/str"
"github.com/Luzifer/rconfig/v2"
)
var (
cfg = struct {
Config string `flag:"config,c" default:"config.yaml" description:"Configuration for the uploaders"`
LogLevel string `flag:"log-level" default:"info" description:"Log level (debug, info, warn, error, fatal)"`
ValidateOnly bool `flag:"validate-only" default:"false" description:"Only execute validation and prepare functions, do not upload"`
VersionAndExit bool `flag:"version" default:"false" description:"Prints current version and exits"`
Config string `flag:"config,c" default:"config.yaml" description:"Configuration for the uploaders"`
Limit []string `flag:"limit,l" description:"Limit to certain uploader IDs"`
LogLevel string `flag:"log-level" default:"info" description:"Log level (debug, info, warn, error, fatal)"`
ValidateOnly bool `flag:"validate-only" default:"false" description:"Only execute validation and prepare functions, do not upload"`
VersionAndExit bool `flag:"version" default:"false" description:"Prints current version and exits"`
}{}
version = "dev"
@ -33,6 +35,10 @@ func initApp() error {
return errors.Wrap(err, "parsing cli options")
}
if len(cfg.Limit) == 1 && cfg.Limit[0] == "" {
cfg.Limit = nil
}
l, err := logrus.ParseLevel(cfg.LogLevel)
if err != nil {
return errors.Wrap(err, "parsing log-level")
@ -60,7 +66,7 @@ func main() {
var (
ctx = context.Background()
wg sync.WaitGroup
wg = new(sync.WaitGroup)
)
var (
@ -68,26 +74,8 @@ func main() {
longestPrefix int
)
for _, c := range configFile.Uploaders {
u := uploaderByName(c.Type)
if u == nil {
logrus.Fatalf("unknown uploader %q", c.Type)
}
if err = u.ValidateConfig(c.Settings); err != nil {
logrus.WithError(err).Fatalf("validating config entry %q", c.Name)
}
if err = u.Prepare(ctx, uploader.UploaderOpts{
Name: c.Name,
Config: c.Settings,
}); err != nil {
logrus.WithError(err).Fatalf("preparing uploader %q", c.Name)
}
if l := len(c.Name); l > longestPrefix {
longestPrefix = l
}
if longestPrefix, err = preflight(ctx, configFile); err != nil {
logrus.WithError(err).Fatal("executing preflight checks")
}
if cfg.ValidateOnly {
@ -98,19 +86,79 @@ func main() {
logrus.Fatal("Usage: publish-vod <filename>")
}
fileName := rconfig.Args()[1]
f, err := os.Open(fileName)
if err = startUploads(ctx, rconfig.Args()[1], configFile, wg, barPool, longestPrefix); err != nil {
logrus.WithError(err).Fatal("starting uploads")
}
if err = barPool.Start(); err != nil {
logrus.WithError(err).Fatal("starting progressbars")
}
wg.Wait()
if err = barPool.Stop(); err != nil {
logrus.WithError(err).Fatal("stopping progressbars")
}
}
func preflight(ctx context.Context, configFile config.File) (longestPrefix int, err error) {
for id, c := range configFile.Uploaders {
if cfg.Limit != nil && !str.StringInSlice(id, cfg.Limit) {
continue
}
logrus.WithField("id", id).Info("validating config...")
u := uploaderByName(c.Type)
if u == nil {
return longestPrefix, fmt.Errorf("unknown uploader %q", c.Type)
}
if err = u.ValidateConfig(c.Settings); err != nil {
return longestPrefix, fmt.Errorf("validating config entry %q: %w", c.Name, err)
}
if err = u.Prepare(ctx, uploader.Opts{
Name: c.Name,
Config: c.Settings,
}); err != nil {
return longestPrefix, fmt.Errorf("preparing uploader %q: %w", c.Name, err)
}
if l := len(c.Name); l > longestPrefix {
longestPrefix = l
}
}
return longestPrefix, nil
}
func startUploads(
ctx context.Context,
fileName string,
configFile config.File,
wg *sync.WaitGroup,
barPool *pb.Pool,
longestPrefix int,
) (err error) {
f, err := os.Open(fileName) //#nosec G304 // Intended to open and upload arbitrary file
if err != nil {
logrus.WithError(err).Fatal("opening VoD")
return fmt.Errorf("opening VoD: %w", err)
}
defer f.Close() //nolint:errcheck // File is closed by process exit
stat, err := f.Stat()
if err != nil {
logrus.WithError(err).Fatal("getting VoD stat")
return fmt.Errorf("getting VoD stat: %w", err)
}
for i := range configFile.Uploaders {
for id := range configFile.Uploaders {
if cfg.Limit != nil && !str.StringInSlice(id, cfg.Limit) {
continue
}
logrus.WithField("id", id).Info("starting upload...")
wg.Add(1)
bar := pb.New64(stat.Size())
@ -122,7 +170,7 @@ func main() {
bar.Set("prefix", fmt.Sprintf(fmt.Sprintf("%%-%ds", longestPrefix), c.Name))
if err = uploaderByName(c.Type).UploadFile(ctx, uploader.UploaderOpts{
if err = uploaderByName(c.Type).UploadFile(ctx, uploader.Opts{
Name: c.Name,
Config: c.Settings,
@ -137,11 +185,8 @@ func main() {
}); err != nil {
bar.SetTemplate(pb.ProgressBarTemplate(fmt.Sprintf(`{{ string . "prefix" }} ERR: %s`, err)))
}
}(configFile.Uploaders[i], bar)
}(configFile.Uploaders[id], bar)
}
barPool.Start()
wg.Wait()
barPool.Stop()
return nil
}

4
pkg/config/config.go
View File

@ -13,7 +13,7 @@ import (
type (
// File represents the contents of a configuration file
File struct {
Uploaders []UploaderConfig `yaml:"uploaders"`
Uploaders map[string]UploaderConfig `yaml:"uploaders"`
}
// UploaderConfig defines the settings for each uploader
@ -26,7 +26,7 @@ type (
// Load parses the configuration file from disk
func Load(filename string) (config File, err error) {
f, err := os.Open(filename)
f, err := os.Open(filename) //#nosec G304 // Intended to open user-given config
if err != nil {
return config, fmt.Errorf("opening config file: %w", err)
}

15
pkg/uploader/interface.go
View File

@ -11,13 +11,22 @@ import (
)
type (
// Uploader defines the interface to implement on new uploaders
Uploader interface {
Prepare(ctx context.Context, opts UploaderOpts) error
UploadFile(ctx context.Context, opts UploaderOpts) error
// Prepare is used to check authorizations, re-authorize uploaders
// and do preflight-checks in before the real upload is started
Prepare(ctx context.Context, opts Opts) error
// UploadFile is executed after Prepare and ValidateConfig and
// can concentrate on uploading the file to the respective target
UploadFile(ctx context.Context, opts Opts) error
// ValidateConfig is called before Prepare and UploadFile and
// must make sure the settings given are complete and valid
ValidateConfig(config *fieldcollection.FieldCollection) error
}
UploaderOpts struct {
// Opts contains the require arguments for an Uploader
// to do its job
Opts struct {
Name string
Config *fieldcollection.FieldCollection

41
pkg/uploader/sftp/sftp.go
View File

@ -1,3 +1,4 @@
// Package sftp contains the implementation for an SFTP uploader
package sftp
import (
@ -9,6 +10,7 @@ import (
"git.luzifer.io/luzifer/publish-vod/pkg/uploader"
"github.com/Luzifer/go_helpers/v2/fieldcollection"
"github.com/sirupsen/logrus"
pkgSFTP "github.com/pkg/sftp"
"golang.org/x/crypto/ssh"
@ -16,18 +18,15 @@ import (
)
type (
Uploader struct{}
impl struct{}
)
var (
ptrStringEmpty = func(v string) *string { return &v }("")
// New returns a SFTP Uploader
func New() uploader.Uploader { return impl{} }
_ uploader.Uploader = Uploader{}
)
func (impl) Prepare(context.Context, uploader.Opts) error { return nil }
func (Uploader) Prepare(context.Context, uploader.UploaderOpts) error { return nil }
func (Uploader) UploadFile(ctx context.Context, opts uploader.UploaderOpts) error {
func (impl) UploadFile(_ context.Context, opts uploader.Opts) error {
socket := os.Getenv("SSH_AUTH_SOCK")
conn, err := net.Dial("unix", socket)
if err != nil {
@ -42,38 +41,52 @@ func (Uploader) UploadFile(ctx context.Context, opts uploader.UploaderOpts) erro
// agent once the remote server wants it.
ssh.PublicKeysCallback(agentClient.Signers),
},
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
HostKeyCallback: ssh.InsecureIgnoreHostKey(), //#nosec G106
}
client, err := ssh.Dial("tcp", opts.Config.MustString("host", nil), config)
if err != nil {
return fmt.Errorf("dialing SSH server: %w", err)
}
defer client.Close()
defer func() {
if err := client.Close(); err != nil {
logrus.WithError(err).Error("closing SSH client (leaked fd)")
}
}()
sftpClient, err := pkgSFTP.NewClient(client)
if err != nil {
return fmt.Errorf("creating sftp client: %w", err)
}
defer sftpClient.Close()
defer func() {
if err := sftpClient.Close(); err != nil {
logrus.WithError(err).Error("closing SFTP client (leaked fd)")
}
}()
remoteFile := path.Join(opts.Config.MustString("path", nil), path.Base(opts.Filename))
f, err := sftpClient.OpenFile(remoteFile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC)
if err != nil {
return fmt.Errorf("opening remote file: %w", err)
}
defer f.Close()
defer func() {
if err := f.Close(); err != nil {
logrus.WithError(err).Error("closing SFTP file (leaked fd)")
}
}()
progressReader := opts.ProgressBar.NewProxyReader(opts.Content)
f.ReadFrom(progressReader)
if _, err = f.ReadFrom(progressReader); err != nil {
return fmt.Errorf("uploading video: %w", err)
}
opts.FinalMessage("Video uploaded to %s", remoteFile)
return nil
}
func (Uploader) ValidateConfig(config *fieldcollection.FieldCollection) error {
func (impl) ValidateConfig(config *fieldcollection.FieldCollection) error {
for _, key := range []string{"host", "path", "user"} {
if v, err := config.String(key); err != nil || v == "" {
return fmt.Errorf("key %q must be non-empty string", key)

17
pkg/uploader/youtube/youtube.go
View File

@ -1,3 +1,5 @@
// Package youtube contains an uploader to push VoDs to a Youtube
// channel
package youtube
import (
@ -18,16 +20,15 @@ import (
)
type (
Uploader struct{}
impl struct{}
)
var (
ptrStringEmpty = func(v string) *string { return &v }("")
var ptrStringEmpty = func(v string) *string { return &v }("")
_ uploader.Uploader = Uploader{}
)
// New creates a new Youtube Uploader
func New() uploader.Uploader { return impl{} }
func (Uploader) Prepare(ctx context.Context, opts uploader.UploaderOpts) error {
func (impl) Prepare(ctx context.Context, opts uploader.Opts) error {
_, ts, err := oauth4youtube.GetOAuth2Client(ctx, opts.Config.MustString("vaultKey", nil))
if err != nil {
return fmt.Errorf("getting oauth credentials: %w", err)
@ -45,7 +46,7 @@ func (Uploader) Prepare(ctx context.Context, opts uploader.UploaderOpts) error {
return nil
}
func (Uploader) UploadFile(ctx context.Context, opts uploader.UploaderOpts) error {
func (impl) UploadFile(ctx context.Context, opts uploader.Opts) error {
client, ts, err := oauth4youtube.GetOAuth2Client(ctx, opts.Config.MustString("vaultKey", nil))
if err != nil {
return fmt.Errorf("getting oauth credentials: %w", err)
@ -103,7 +104,7 @@ func (Uploader) UploadFile(ctx context.Context, opts uploader.UploaderOpts) erro
return nil
}
func (Uploader) ValidateConfig(config *fieldcollection.FieldCollection) error {
func (impl) ValidateConfig(config *fieldcollection.FieldCollection) error {
for _, key := range []string{"channel", "vaultKey"} {
if v, err := config.String(key); err != nil || v == "" {
return fmt.Errorf("key %q must be non-empty string", key)

2
pkg/vault-oauth2/vault.go
View File

@ -1,3 +1,5 @@
// Package vaultoauth2 supplies helper functions to store and update
// oauth2 client credentials and tokens in a Vault key
package vaultoauth2
import (

10
pkg/vault-oauth2/youtube/youtube.go
View File

@ -1,3 +1,5 @@
// Package youtube uses the vaultoauth2 package to create a Youtube
// client and authorize it
package youtube
import (
@ -37,14 +39,18 @@ func GetOAuth2Client(ctx context.Context, vaultKey string) (client *http.Client,
codeChan := make(chan string, 1)
mux := http.NewServeMux()
mux.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) { codeChan <- r.URL.Query().Get("code") })
mux.HandleFunc("/", func(_ http.ResponseWriter, r *http.Request) { codeChan <- r.URL.Query().Get("code") })
server := &http.Server{
Addr: ":65285",
Handler: mux,
ReadHeaderTimeout: time.Second,
}
go server.ListenAndServe()
go func() {
if err := server.ListenAndServe(); err != nil {
logrus.WithError(err).Fatal("creating listener for Youtube auth")
}
}()
logrus.Warnf("Youtube is not authorized, please do so by visiting %s", c.AuthCodeURL("offline", oauth2.AccessTypeOffline))

4
uploaders.go
View File

@ -9,10 +9,10 @@ import (
func uploaderByName(name string) uploader.Uploader {
switch name {
case "sftp":
return sftp.Uploader{}
return sftp.New()
case "youtube":
return youtube.Uploader{}
return youtube.New()
default:
return nil