107 lines
2.8 KiB
Go
107 lines
2.8 KiB
Go
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// gomuks - A terminal Matrix client written in Go.
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// Copyright (C) 2020 Tulir Asokan
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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package matrix
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import (
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"context"
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"fmt"
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"image"
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"os"
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"strings"
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"time"
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"github.com/gabriel-vasile/mimetype"
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"github.com/pkg/errors"
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"gopkg.in/vansante/go-ffprobe.v2"
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"maunium.net/go/gomuks/debug"
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"maunium.net/go/mautrix/event"
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)
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func getImageInfo(path string) (event.FileInfo, error) {
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var info event.FileInfo
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file, err := os.Open(path)
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if err != nil {
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return info, errors.Wrap(err, "failed to open image to get info")
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}
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cfg, _, err := image.DecodeConfig(file)
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if err != nil {
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return info, errors.Wrap(err, "failed to get image info")
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}
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info.Width = cfg.Width
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info.Height = cfg.Height
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return info, nil
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}
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func getFFProbeInfo(mimeClass, path string) (msgtype event.MessageType, info event.FileInfo, err error) {
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ctx, cancelFn := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancelFn()
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var probedInfo *ffprobe.ProbeData
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probedInfo, err = ffprobe.ProbeURL(ctx, path)
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if err != nil {
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err = errors.Wrap(err, fmt.Sprintf("failed to get %s info with ffprobe", mimeClass))
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return
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}
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if mimeClass == "audio" {
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msgtype = event.MsgAudio
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stream := probedInfo.FirstAudioStream()
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if stream != nil {
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info.Duration = int(stream.DurationTs)
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}
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} else {
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msgtype = event.MsgVideo
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stream := probedInfo.FirstVideoStream()
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if stream != nil {
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info.Duration = int(stream.DurationTs)
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info.Width = stream.Width
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info.Height = stream.Height
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}
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}
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return
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}
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func getMediaInfo(path string) (msgtype event.MessageType, info event.FileInfo, err error) {
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var mime *mimetype.MIME
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mime, err = mimetype.DetectFile(path)
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if err != nil {
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err = errors.Wrap(err, "failed to get content type")
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return
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}
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mimeClass := strings.SplitN(mime.String(), "/", 2)[0]
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switch mimeClass {
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case "image":
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msgtype = event.MsgImage
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info, err = getImageInfo(path)
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if err != nil {
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debug.Printf("Failed to get image info for %s: %v", err)
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err = nil
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}
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case "audio", "video":
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msgtype, info, err = getFFProbeInfo(mimeClass, path)
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if err != nil {
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debug.Printf("Failed to get ffprobe info for %s: %v", err)
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err = nil
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}
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default:
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msgtype = event.MsgFile
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}
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info.MimeType = mime.String()
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return
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}
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