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fix(antivirus): the file bytesize differs if the file is larger than the max-scan-size which leads to a std-lib request validation error.

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This commit is contained in:
fschade
2025-08-27 14:36:06 +02:00
parent 2a76fc22be
commit 2164cbed51
1 changed files with 6 additions and 4 deletions
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10
services/antivirus/pkg/service/service.go
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@@ -231,19 +231,21 @@ func (av Antivirus) process(ev events.StartPostprocessingStep) (scanners.Result,
return scanners.Result{ScanTime: time.Now()}, nil
}
filesize := ev.Filesize
headers := make(map[string]string)
switch {
case av.maxScanSize == 0:
// there is no size limit
break
case av.config.MaxScanSizeMode == config.MaxScanSizeModeSkip && ev.Filesize > av.maxScanSize:
case av.config.MaxScanSizeMode == config.MaxScanSizeModeSkip && filesize > av.maxScanSize:
// skip the file if it is bigger than the max scan size
av.log.Info().Str("uploadid", ev.UploadID).Uint64("filesize", ev.Filesize).
av.log.Info().Str("uploadid", ev.UploadID).Uint64("filesize", filesize).
Msg("Skipping file to be virus scanned, file size is bigger than max scan size.")
return scanners.Result{ScanTime: time.Now()}, nil
case av.config.MaxScanSizeMode == config.MaxScanSizeModePartial && ev.Filesize > av.maxScanSize:
case av.config.MaxScanSizeMode == config.MaxScanSizeModePartial && filesize > av.maxScanSize:
// set the range header to only download the first maxScanSize bytes
headers["Range"] = fmt.Sprintf("bytes=0-%d", av.maxScanSize-1)
filesize = av.maxScanSize // inform the scanner that we are only scanning part of the file
}
var err error
@@ -265,7 +267,7 @@ func (av Antivirus) process(ev events.StartPostprocessingStep) (scanners.Result,
av.log.Debug().Str("uploadid", ev.UploadID).Msg("Downloaded file successfully, starting virusscan")
res, err := av.scanner.Scan(scanners.Input{Body: rrc, Size: int64(ev.Filesize), Url: ev.URL, Name: ev.Filename})
res, err := av.scanner.Scan(scanners.Input{Body: rrc, Size: int64(filesize), Url: ev.URL, Name: ev.Filename})
if err != nil {
av.log.Error().Err(err).Str("uploadid", ev.UploadID).Msg("error scanning file")
}