gmessages/libgm/image_builder.go
2023-07-15 20:29:43 +03:00

112 lines
5.1 KiB
Go

package libgm
import (
"strings"
"go.mau.fi/mautrix-gmessages/libgm/binary"
"go.mau.fi/mautrix-gmessages/libgm/crypto"
)
type MediaType struct {
Extension string
Format string
Type binary.MediaFormats
}
var MimeToMediaType = map[string]MediaType{
"image/jpeg": {Extension: "jpeg", Type: binary.MediaFormats_IMAGE_JPEG},
"image/jpg": {Extension: "jpg", Type: binary.MediaFormats_IMAGE_JPG},
"image/png": {Extension: "png", Type: binary.MediaFormats_IMAGE_PNG},
"image/gif": {Extension: "gif", Type: binary.MediaFormats_IMAGE_GIF},
"image/wbmp": {Extension: "wbmp", Type: binary.MediaFormats_IMAGE_WBMP},
"image/bmp": {Extension: "bmp", Type: binary.MediaFormats_IMAGE_X_MS_BMP},
"image/x-ms-bmp": {Extension: "bmp", Type: binary.MediaFormats_IMAGE_X_MS_BMP},
"video/mp4": {Extension: "mp4", Type: binary.MediaFormats_VIDEO_MP4},
"video/3gpp2": {Extension: "3gpp2", Type: binary.MediaFormats_VIDEO_3G2},
"video/3gpp": {Extension: "3gpp", Type: binary.MediaFormats_VIDEO_3GPP},
"video/webm": {Extension: "webm", Type: binary.MediaFormats_VIDEO_WEBM},
"video/x-matroska": {Extension: "mkv", Type: binary.MediaFormats_VIDEO_MKV},
"audio/aac": {Extension: "aac", Type: binary.MediaFormats_AUDIO_AAC},
"audio/amr": {Extension: "amr", Type: binary.MediaFormats_AUDIO_AMR},
"audio/mp3": {Extension: "mp3", Type: binary.MediaFormats_AUDIO_MP3},
"audio/mpeg": {Extension: "mpeg", Type: binary.MediaFormats_AUDIO_MPEG},
"audio/mpg": {Extension: "mpg", Type: binary.MediaFormats_AUDIO_MPG},
"audio/mp4": {Extension: "mp4", Type: binary.MediaFormats_AUDIO_MP4},
"audio/mp4-latm": {Extension: "latm", Type: binary.MediaFormats_AUDIO_MP4_LATM},
"audio/3gpp": {Extension: "3gpp", Type: binary.MediaFormats_AUDIO_3GPP},
"audio/ogg": {Extension: "ogg", Type: binary.MediaFormats_AUDIO_OGG},
"text/vcard": {Extension: "vcard", Type: binary.MediaFormats_TEXT_VCARD},
"application/pdf": {Extension: "pdf", Type: binary.MediaFormats_APP_PDF},
"text/plain": {Extension: "txt", Type: binary.MediaFormats_APP_TXT},
"text/html": {Extension: "html", Type: binary.MediaFormats_APP_HTML},
"application/msword": {Extension: "doc", Type: binary.MediaFormats_APP_DOC},
"application/vnd.openxmlformats-officedocument.wordprocessingml.document": {Extension: "docx", Type: binary.MediaFormats_APP_DOCX},
"application/vnd.openxmlformats-officedocument.presentationml.presentation": {Extension: "pptx", Type: binary.MediaFormats_APP_PPTX},
"application/vnd.ms-powerpoint": {Extension: "ppt", Type: binary.MediaFormats_APP_PPT},
"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet": {Extension: "xlsx", Type: binary.MediaFormats_APP_XLSX},
"application/vnd.ms-excel": {Extension: "xls", Type: binary.MediaFormats_APP_XLS},
"application/vnd.android.package-archive": {Extension: "apk", Type: binary.MediaFormats_APP_APK},
"application/zip": {Extension: "zip", Type: binary.MediaFormats_APP_ZIP},
"application/java-archive": {Extension: "jar", Type: binary.MediaFormats_APP_JAR},
"text/x-calendar": {Extension: "vcs", Type: binary.MediaFormats_CAL_TEXT_VCALENDAR},
"text/calendar": {Extension: "ics", Type: binary.MediaFormats_CAL_TEXT_CALENDAR},
"image": {Type: binary.MediaFormats_IMAGE_UNSPECIFIED},
"video": {Type: binary.MediaFormats_VIDEO_UNSPECIFIED},
"audio": {Type: binary.MediaFormats_AUDIO_UNSPECIFIED},
"application": {Type: binary.MediaFormats_APP_UNSPECIFIED},
"text": {Type: binary.MediaFormats_APP_TXT},
}
var FormatToMediaType = map[binary.MediaFormats]MediaType{
binary.MediaFormats_CAL_TEXT_XVCALENDAR: MimeToMediaType["text/x-calendar"],
binary.MediaFormats_CAL_APPLICATION_VCS: MimeToMediaType["text/x-calendar"],
binary.MediaFormats_CAL_APPLICATION_ICS: MimeToMediaType["text/calendar"],
//binary.MediaFormats_CAL_APPLICATION_HBSVCS: ???
}
func init() {
for key, mediaType := range MimeToMediaType {
if strings.ContainsRune(key, '/') {
mediaType.Format = key
}
FormatToMediaType[mediaType.Type] = mediaType
}
}
func (c *Client) UploadMedia(data []byte, fileName, mime string) (*binary.MediaContent, error) {
mediaType := MimeToMediaType[mime]
if mediaType.Type == 0 {
mediaType = MimeToMediaType[strings.Split(mime, "/")[0]]
}
decryptionKey, err := crypto.GenerateKey(32)
if err != nil {
return nil, err
}
cryptor, err := crypto.NewImageCryptor(decryptionKey)
if err != nil {
return nil, err
}
encryptedBytes, err := cryptor.EncryptData(data)
if err != nil {
return nil, err
}
startUploadImage, err := c.StartUploadMedia(encryptedBytes, mime)
if err != nil {
return nil, err
}
upload, err := c.FinalizeUploadMedia(startUploadImage)
if err != nil {
return nil, err
}
return &binary.MediaContent{
Format: mediaType.Type,
MediaID: upload.MediaID,
MediaName: fileName,
Size: int64(len(data)),
DecryptionKey: decryptionKey,
}, nil
}