vendor HEAD main

1 files changed, 356 insertions, 0 deletions

diff --git a/vendor/maunium.net/go/mautrix/event/message.go b/vendor/maunium.net/go/mautrix/event/message.go
new file mode 100644
index 0000000..9badd9a
--- /dev/null
+++ b/vendor/maunium.net/go/mautrix/event/message.go
@@ -0,0 +1,356 @@
+// Copyright (c) 2023 Tulir Asokan
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+package event
+
+import (
+	"encoding/json"
+	"slices"
+	"strconv"
+	"strings"
+
+	"golang.org/x/net/html"
+
+	"maunium.net/go/mautrix/crypto/attachment"
+	"maunium.net/go/mautrix/id"
+)
+
+// MessageType is the sub-type of a m.room.message event.
+// https://spec.matrix.org/v1.2/client-server-api/#mroommessage-msgtypes
+type MessageType string
+
+func (mt MessageType) IsText() bool {
+	switch mt {
+	case MsgText, MsgNotice, MsgEmote:
+		return true
+	default:
+		return false
+	}
+}
+
+func (mt MessageType) IsMedia() bool {
+	switch mt {
+	case MsgImage, MsgVideo, MsgAudio, MsgFile, MessageType(EventSticker.Type):
+		return true
+	default:
+		return false
+	}
+}
+
+// Msgtypes
+const (
+	MsgText     MessageType = "m.text"
+	MsgEmote    MessageType = "m.emote"
+	MsgNotice   MessageType = "m.notice"
+	MsgImage    MessageType = "m.image"
+	MsgLocation MessageType = "m.location"
+	MsgVideo    MessageType = "m.video"
+	MsgAudio    MessageType = "m.audio"
+	MsgFile     MessageType = "m.file"
+
+	MsgVerificationRequest MessageType = "m.key.verification.request"
+
+	MsgBeeperGallery MessageType = "com.beeper.gallery"
+)
+
+// Format specifies the format of the formatted_body in m.room.message events.
+// https://spec.matrix.org/v1.2/client-server-api/#mroommessage-msgtypes
+type Format string
+
+// Message formats
+const (
+	FormatHTML Format = "org.matrix.custom.html"
+)
+
+// RedactionEventContent represents the content of a m.room.redaction message event.
+//
+// https://spec.matrix.org/v1.8/client-server-api/#mroomredaction
+type RedactionEventContent struct {
+	Reason string `json:"reason,omitempty"`
+
+	// The event ID is here as of room v11. In old servers it may only be at the top level.
+	Redacts id.EventID `json:"redacts,omitempty"`
+}
+
+// ReactionEventContent represents the content of a m.reaction message event.
+// This is not yet in a spec release, see https://github.com/matrix-org/matrix-doc/pull/1849
+type ReactionEventContent struct {
+	RelatesTo RelatesTo `json:"m.relates_to"`
+}
+
+func (content *ReactionEventContent) GetRelatesTo() *RelatesTo {
+	return &content.RelatesTo
+}
+
+func (content *ReactionEventContent) OptionalGetRelatesTo() *RelatesTo {
+	return &content.RelatesTo
+}
+
+func (content *ReactionEventContent) SetRelatesTo(rel *RelatesTo) {
+	content.RelatesTo = *rel
+}
+
+// MessageEventContent represents the content of a m.room.message event.
+//
+// It is also used to represent m.sticker events, as they are equivalent to m.room.message
+// with the exception of the msgtype field.
+//
+// https://spec.matrix.org/v1.2/client-server-api/#mroommessage
+type MessageEventContent struct {
+	// Base m.room.message fields
+	MsgType MessageType `json:"msgtype,omitempty"`
+	Body    string      `json:"body"`
+
+	// Extra fields for text types
+	Format        Format `json:"format,omitempty"`
+	FormattedBody string `json:"formatted_body,omitempty"`
+
+	// Extra field for m.location
+	GeoURI string `json:"geo_uri,omitempty"`
+
+	// Extra fields for media types
+	URL  id.ContentURIString `json:"url,omitempty"`
+	Info *FileInfo           `json:"info,omitempty"`
+	File *EncryptedFileInfo  `json:"file,omitempty"`
+
+	FileName string `json:"filename,omitempty"`
+
+	Mentions *Mentions `json:"m.mentions,omitempty"`
+
+	// Edits and relations
+	NewContent *MessageEventContent `json:"m.new_content,omitempty"`
+	RelatesTo  *RelatesTo           `json:"m.relates_to,omitempty"`
+
+	// In-room verification
+	To         id.UserID            `json:"to,omitempty"`
+	FromDevice id.DeviceID          `json:"from_device,omitempty"`
+	Methods    []VerificationMethod `json:"methods,omitempty"`
+
+	replyFallbackRemoved bool
+
+	MessageSendRetry         *BeeperRetryMetadata     `json:"com.beeper.message_send_retry,omitempty"`
+	BeeperGalleryImages      []*MessageEventContent   `json:"com.beeper.gallery.images,omitempty"`
+	BeeperGalleryCaption     string                   `json:"com.beeper.gallery.caption,omitempty"`
+	BeeperGalleryCaptionHTML string                   `json:"com.beeper.gallery.caption_html,omitempty"`
+	BeeperPerMessageProfile  *BeeperPerMessageProfile `json:"com.beeper.per_message_profile,omitempty"`
+
+	BeeperLinkPreviews []*BeeperLinkPreview `json:"com.beeper.linkpreviews,omitempty"`
+
+	MSC1767Audio *MSC1767Audio `json:"org.matrix.msc1767.audio,omitempty"`
+	MSC3245Voice *MSC3245Voice `json:"org.matrix.msc3245.voice,omitempty"`
+}
+
+func (content *MessageEventContent) GetFileName() string {
+	if content.FileName != "" {
+		return content.FileName
+	}
+	return content.Body
+}
+
+func (content *MessageEventContent) GetCaption() string {
+	if content.FileName != "" && content.Body != "" && content.Body != content.FileName {
+		return content.Body
+	}
+	return ""
+}
+
+func (content *MessageEventContent) GetFormattedCaption() string {
+	if content.Format == FormatHTML && content.FormattedBody != "" {
+		return content.FormattedBody
+	}
+	return ""
+}
+
+func (content *MessageEventContent) GetRelatesTo() *RelatesTo {
+	if content.RelatesTo == nil {
+		content.RelatesTo = &RelatesTo{}
+	}
+	return content.RelatesTo
+}
+
+func (content *MessageEventContent) OptionalGetRelatesTo() *RelatesTo {
+	return content.RelatesTo
+}
+
+func (content *MessageEventContent) SetRelatesTo(rel *RelatesTo) {
+	content.RelatesTo = rel
+}
+
+func (content *MessageEventContent) SetEdit(original id.EventID) {
+	newContent := *content
+	content.NewContent = &newContent
+	content.RelatesTo = (&RelatesTo{}).SetReplace(original)
+	if content.MsgType == MsgText || content.MsgType == MsgNotice {
+		content.Body = "* " + content.Body
+		if content.Format == FormatHTML && len(content.FormattedBody) > 0 {
+			content.FormattedBody = "* " + content.FormattedBody
+		}
+		// If the message is long, remove most of the useless edit fallback to avoid event size issues.
+		if len(content.Body) > 10000 {
+			content.FormattedBody = ""
+			content.Format = ""
+			content.Body = content.Body[:50] + "[edit fallback cut…]"
+		}
+	}
+}
+
+// TextToHTML converts the given text to a HTML-safe representation by escaping HTML characters
+// and replacing newlines with <br/> tags.
+func TextToHTML(text string) string {
+	return strings.ReplaceAll(html.EscapeString(text), "\n", "<br/>")
+}
+
+// ReverseTextToHTML reverses the modifications made by TextToHTML, i.e. replaces <br/> tags with newlines
+// and unescapes HTML escape codes. For actually parsing HTML, use the format package instead.
+func ReverseTextToHTML(input string) string {
+	return html.UnescapeString(strings.ReplaceAll(input, "<br/>", "\n"))
+}
+
+func (content *MessageEventContent) EnsureHasHTML() {
+	if len(content.FormattedBody) == 0 || content.Format != FormatHTML {
+		content.FormattedBody = TextToHTML(content.Body)
+		content.Format = FormatHTML
+	}
+}
+
+func (content *MessageEventContent) GetFile() *EncryptedFileInfo {
+	if content.File == nil {
+		content.File = &EncryptedFileInfo{}
+	}
+	return content.File
+}
+
+func (content *MessageEventContent) GetInfo() *FileInfo {
+	if content.Info == nil {
+		content.Info = &FileInfo{}
+	}
+	return content.Info
+}
+
+type Mentions struct {
+	UserIDs []id.UserID `json:"user_ids,omitempty"`
+	Room    bool        `json:"room,omitempty"`
+}
+
+func (m *Mentions) Add(userID id.UserID) {
+	if userID != "" && !slices.Contains(m.UserIDs, userID) {
+		m.UserIDs = append(m.UserIDs, userID)
+	}
+}
+
+func (m *Mentions) Has(userID id.UserID) bool {
+	return m != nil && slices.Contains(m.UserIDs, userID)
+}
+
+type EncryptedFileInfo struct {
+	attachment.EncryptedFile
+	URL id.ContentURIString `json:"url"`
+}
+
+type FileInfo struct {
+	MimeType      string              `json:"mimetype,omitempty"`
+	ThumbnailInfo *FileInfo           `json:"thumbnail_info,omitempty"`
+	ThumbnailURL  id.ContentURIString `json:"thumbnail_url,omitempty"`
+	ThumbnailFile *EncryptedFileInfo  `json:"thumbnail_file,omitempty"`
+
+	Blurhash     string `json:"blurhash,omitempty"`
+	AnoaBlurhash string `json:"xyz.amorgan.blurhash,omitempty"`
+
+	Width    int `json:"-"`
+	Height   int `json:"-"`
+	Duration int `json:"-"`
+	Size     int `json:"-"`
+}
+
+type serializableFileInfo struct {
+	MimeType      string                `json:"mimetype,omitempty"`
+	ThumbnailInfo *serializableFileInfo `json:"thumbnail_info,omitempty"`
+	ThumbnailURL  id.ContentURIString   `json:"thumbnail_url,omitempty"`
+	ThumbnailFile *EncryptedFileInfo    `json:"thumbnail_file,omitempty"`
+
+	Blurhash     string `json:"blurhash,omitempty"`
+	AnoaBlurhash string `json:"xyz.amorgan.blurhash,omitempty"`
+
+	Width    json.Number `json:"w,omitempty"`
+	Height   json.Number `json:"h,omitempty"`
+	Duration json.Number `json:"duration,omitempty"`
+	Size     json.Number `json:"size,omitempty"`
+}
+
+func (sfi *serializableFileInfo) CopyFrom(fileInfo *FileInfo) *serializableFileInfo {
+	if fileInfo == nil {
+		return nil
+	}
+	*sfi = serializableFileInfo{
+		MimeType:      fileInfo.MimeType,
+		ThumbnailURL:  fileInfo.ThumbnailURL,
+		ThumbnailInfo: (&serializableFileInfo{}).CopyFrom(fileInfo.ThumbnailInfo),
+		ThumbnailFile: fileInfo.ThumbnailFile,
+
+		Blurhash:     fileInfo.Blurhash,
+		AnoaBlurhash: fileInfo.AnoaBlurhash,
+	}
+	if fileInfo.Width > 0 {
+		sfi.Width = json.Number(strconv.Itoa(fileInfo.Width))
+	}
+	if fileInfo.Height > 0 {
+		sfi.Height = json.Number(strconv.Itoa(fileInfo.Height))
+	}
+	if fileInfo.Size > 0 {
+		sfi.Size = json.Number(strconv.Itoa(fileInfo.Size))
+
+	}
+	if fileInfo.Duration > 0 {
+		sfi.Duration = json.Number(strconv.Itoa(int(fileInfo.Duration)))
+	}
+	return sfi
+}
+
+func (sfi *serializableFileInfo) CopyTo(fileInfo *FileInfo) {
+	*fileInfo = FileInfo{
+		Width:         numberToInt(sfi.Width),
+		Height:        numberToInt(sfi.Height),
+		Size:          numberToInt(sfi.Size),
+		Duration:      numberToInt(sfi.Duration),
+		MimeType:      sfi.MimeType,
+		ThumbnailURL:  sfi.ThumbnailURL,
+		ThumbnailFile: sfi.ThumbnailFile,
+		Blurhash:      sfi.Blurhash,
+		AnoaBlurhash:  sfi.AnoaBlurhash,
+	}
+	if sfi.ThumbnailInfo != nil {
+		fileInfo.ThumbnailInfo = &FileInfo{}
+		sfi.ThumbnailInfo.CopyTo(fileInfo.ThumbnailInfo)
+	}
+}
+
+func (fileInfo *FileInfo) UnmarshalJSON(data []byte) error {
+	sfi := &serializableFileInfo{}
+	if err := json.Unmarshal(data, sfi); err != nil {
+		return err
+	}
+	sfi.CopyTo(fileInfo)
+	return nil
+}
+
+func (fileInfo *FileInfo) MarshalJSON() ([]byte, error) {
+	return json.Marshal((&serializableFileInfo{}).CopyFrom(fileInfo))
+}
+
+func numberToInt(val json.Number) int {
+	f64, _ := val.Float64()
+	if f64 > 0 {
+		return int(f64)
+	}
+	return 0
+}
+
+func (fileInfo *FileInfo) GetThumbnailInfo() *FileInfo {
+	if fileInfo.ThumbnailInfo == nil {
+		fileInfo.ThumbnailInfo = &FileInfo{}
+	}
+	return fileInfo.ThumbnailInfo
+}