mirror of
https://github.com/Luzifer/twitch-bot.git
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130 lines
3.4 KiB
Go
130 lines
3.4 KiB
Go
// Package filesay contains an actor to paste a remote URL as chat
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// commands i.e. for bulk banning users
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package filesay
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import (
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"bufio"
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"context"
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"fmt"
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"net/http"
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"net/url"
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"time"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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"gopkg.in/irc.v4"
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"github.com/Luzifer/go_helpers/v2/fieldcollection"
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"github.com/Luzifer/twitch-bot/v3/internal/helpers"
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"github.com/Luzifer/twitch-bot/v3/plugins"
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)
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const (
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actorName = "filesay"
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httpTimeout = 5 * time.Second
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)
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var (
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formatMessage plugins.MsgFormatter
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send plugins.SendMessageFunc
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)
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// Register provides the plugins.RegisterFunc
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func Register(args plugins.RegistrationArguments) error {
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formatMessage = args.FormatMessage
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send = args.SendMessage
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args.RegisterActor(actorName, func() plugins.Actor { return &actor{} })
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args.RegisterActorDocumentation(plugins.ActionDocumentation{
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Description: "Takes the content of an URL and pastes it to the current channel",
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Name: "FileSay",
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Type: actorName,
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Fields: []plugins.ActionDocumentationField{
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{
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Default: "",
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Description: "Source of the content to post",
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Key: "source",
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Name: "source",
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Optional: false,
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SupportTemplate: true,
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Type: plugins.ActionDocumentationFieldTypeString,
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},
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},
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})
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return nil
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}
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type actor struct{}
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func (actor) Execute(_ *irc.Client, m *irc.Message, r *plugins.Rule, eventData *fieldcollection.FieldCollection, attrs *fieldcollection.FieldCollection) (preventCooldown bool, err error) {
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ptrStringEmpty := func(v string) *string { return &v }("")
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source, err := formatMessage(attrs.MustString("source", ptrStringEmpty), m, r, eventData)
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if err != nil {
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return false, errors.Wrap(err, "executing source template")
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}
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if source == "" {
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return false, errors.New("source template evaluated to empty string")
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}
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if _, err := url.Parse(source); err != nil {
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return false, errors.Wrap(err, "parsing URL")
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}
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ctx, cancel := context.WithTimeout(context.Background(), httpTimeout)
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defer cancel()
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req, err := http.NewRequestWithContext(ctx, http.MethodGet, source, nil)
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if err != nil {
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return false, errors.Wrap(err, "creating HTTP request")
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}
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resp, err := http.DefaultClient.Do(req)
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if err != nil {
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return false, errors.Wrap(err, "executing HTTP request")
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}
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defer func() {
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if err := resp.Body.Close(); err != nil {
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logrus.WithError(err).Error("closing response body (leaked fd)")
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}
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}()
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if resp.StatusCode != http.StatusOK {
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return false, errors.Errorf("http status %d", resp.StatusCode)
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}
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scanner := bufio.NewScanner(resp.Body)
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for scanner.Scan() {
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if err = send(&irc.Message{
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Command: "PRIVMSG",
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Params: []string{
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plugins.DeriveChannel(m, eventData),
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scanner.Text(),
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},
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}); err != nil {
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return false, errors.Wrap(err, "sending message")
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}
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}
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return false, nil
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}
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func (actor) IsAsync() bool { return true }
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func (actor) Name() string { return actorName }
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func (actor) Validate(tplValidator plugins.TemplateValidatorFunc, attrs *fieldcollection.FieldCollection) (err error) {
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if err = attrs.ValidateSchema(
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fieldcollection.MustHaveField(fieldcollection.SchemaField{Name: "source", NonEmpty: true, Type: fieldcollection.SchemaFieldTypeString}),
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fieldcollection.MustHaveNoUnknowFields,
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helpers.SchemaValidateTemplateField(tplValidator, "source"),
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); err != nil {
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return fmt.Errorf("validating attributes: %w", err)
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}
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return nil
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}
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