move gotd fork into repo. (#111)

- update to latest telegram layer
- remove some references to fields in tg.Entities that don't exist in
the schema
- originally added here:
https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e
  - referenced here
-
https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3
-
https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e

pkg/gotd/telegram/peers/members/rights.go

@@ -0,0 +1,118 @@
+package members
+
+import (
+	"time"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+// AdminRights represents admin right settings.
+type AdminRights struct {
+	// Indicates the role (rank) of the admin in the group: just an arbitrary string.
+	//
+	// If empty, will not be used.
+	Rank string
+	// If set, allows the admin to modify the description of the channel/supergroup.
+	ChangeInfo bool
+	// If set, allows the admin to post messages in the channel.
+	PostMessages bool
+	// If set, allows the admin to also edit messages from other admins in the channel.
+	EditMessages bool
+	// If set, allows the admin to also delete messages from other admins in the channel.
+	DeleteMessages bool
+	// If set, allows the admin to ban users from the channel/supergroup.
+	BanUsers bool
+	// If set, allows the admin to invite users in the channel/supergroup.
+	InviteUsers bool
+	// If set, allows the admin to pin messages in the channel/supergroup.
+	PinMessages bool
+	// If set, allows the admin to add other admins with the same (or more limited)
+	// permissions in the channel/supergroup.
+	AddAdmins bool
+	// Whether this admin is anonymous.
+	Anonymous bool
+	// If set, allows the admin to change group call/livestream settings.
+	ManageCall bool
+	// Set this flag if none of the other flags are set, but you still want the user to be an
+	// admin.
+	Other bool
+}
+
+// IntoChatAdminRights converts AdminRights into tg.ChatAdminRights.
+func (b AdminRights) IntoChatAdminRights() (r tg.ChatAdminRights) {
+	r.ChangeInfo = b.ChangeInfo
+	r.PostMessages = b.PostMessages
+	r.EditMessages = b.EditMessages
+	r.DeleteMessages = b.DeleteMessages
+	r.BanUsers = b.BanUsers
+	r.InviteUsers = b.InviteUsers
+	r.PinMessages = b.PinMessages
+	r.AddAdmins = b.AddAdmins
+	r.Anonymous = b.Anonymous
+	r.ManageCall = b.ManageCall
+	r.Other = b.Other
+	r.SetFlags()
+	return r
+}
+
+// MemberRights represents member right settings.
+type MemberRights struct {
+	// If set, does not allow a user to view messages in a supergroup/channel/chat.
+	//
+	// In fact, user will be kicked.
+	DenyViewMessages bool
+	// If set, does not allow a user to send messages in a supergroup/chat.
+	DenySendMessages bool
+	// If set, does not allow a user to send any media in a supergroup/chat.
+	DenySendMedia bool
+	// If set, does not allow a user to send stickers in a supergroup/chat.
+	DenySendStickers bool
+	// If set, does not allow a user to send gifs in a supergroup/chat.
+	DenySendGifs bool
+	// If set, does not allow a user to send games in a supergroup/chat.
+	DenySendGames bool
+	// If set, does not allow a user to use inline bots in a supergroup/chat.
+	DenySendInline bool
+	// If set, does not allow a user to embed links in the messages of a supergroup/chat.
+	DenyEmbedLinks bool
+	// If set, does not allow a user to send polls in a supergroup/chat.
+	DenySendPolls bool
+	// If set, does not allow any user to change the description of a supergroup/chat.
+	DenyChangeInfo bool
+	// If set, does not allow any user to invite users in a supergroup/chat.
+	DenyInviteUsers bool
+	// If set, does not allow any user to pin messages in a supergroup/chat.
+	DenyPinMessages bool
+	// Validity of said permissions (it is considered forever any value less than 30 seconds or more than 366 days).
+	//
+	// If value is zero, value will not be used.
+	UntilDate time.Time
+}
+
+// ApplyFor sets duration of validity of set rights.
+func (b *MemberRights) ApplyFor(d time.Duration) {
+	b.UntilDate = time.Now().Add(d)
+}
+
+// IntoChatBannedRights converts MemberRights into tg.ChatBannedRights.
+func (b MemberRights) IntoChatBannedRights() (r tg.ChatBannedRights) {
+	r = tg.ChatBannedRights{
+		ViewMessages: b.DenyViewMessages,
+		SendMessages: b.DenySendMessages,
+		SendMedia:    b.DenySendMedia,
+		SendStickers: b.DenySendStickers,
+		SendGifs:     b.DenySendGifs,
+		SendGames:    b.DenySendGames,
+		SendInline:   b.DenySendInline,
+		EmbedLinks:   b.DenyEmbedLinks,
+		SendPolls:    b.DenySendPolls,
+		ChangeInfo:   b.DenyChangeInfo,
+		InviteUsers:  b.DenyInviteUsers,
+		PinMessages:  b.DenyPinMessages,
+	}
+	if !b.UntilDate.IsZero() {
+		r.UntilDate = int(b.UntilDate.Unix())
+	}
+	r.SetFlags()
+	return r
+}