8d5be2d657
* Document extractor service * Fixing vendor modules * Addressing PR Review comments * Some small simplifications * Fixing a linter complain * simplifying a bit the code using package variables Co-authored-by: Mattermod <mattermod@users.noreply.github.com>
53 строки
1.1 KiB
Go
53 строки
1.1 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package docextractor
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import (
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"bytes"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path"
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"strings"
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"github.com/ledongthuc/pdf"
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)
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type pdfExtractor struct{}
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func (pe *pdfExtractor) Match(filename string) bool {
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supportedExtensions := map[string]bool{
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"pdf": true,
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}
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extension := strings.TrimPrefix(path.Ext(filename), ".")
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return supportedExtensions[extension]
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}
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func (pe *pdfExtractor) Extract(filename string, r io.Reader) (string, error) {
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f, err := ioutil.TempFile(os.TempDir(), "pdflib")
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if err != nil {
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return "", fmt.Errorf("error creating temporary file: %v", err)
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}
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defer f.Close()
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defer os.Remove(f.Name())
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size, err := io.Copy(f, r)
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if err != nil {
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return "", fmt.Errorf("error copying data into temporary file: %v", err)
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}
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reader, err := pdf.NewReader(f, size)
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if err != nil {
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return "", err
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}
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var buf bytes.Buffer
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b, err := reader.GetPlainText()
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if err != nil {
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return "", err
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}
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buf.ReadFrom(b)
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return buf.String(), nil
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}
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