732f826ec2
- Extract base64 data from PEM files and secret files - Environment variables are not PEM encoded and only the base64 data - Affects OpenVPN certificate, key and encrypted key
56 lines
1.1 KiB
Go
56 lines
1.1 KiB
Go
package files
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import (
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/qdm12/gluetun/internal/openvpn/extract"
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)
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// ReadFromFile reads the content of the file as a string.
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// It returns a nil string pointer if the file does not exist.
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func ReadFromFile(filepath string) (s *string, err error) {
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file, err := os.Open(filepath)
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if err != nil {
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if os.IsNotExist(err) {
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return nil, nil //nolint:nilnil
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}
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return nil, err
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}
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b, err := io.ReadAll(file)
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if err != nil {
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_ = file.Close()
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return nil, err
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}
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if err := file.Close(); err != nil {
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return nil, err
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}
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content := string(b)
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content = strings.TrimSuffix(content, "\r\n")
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content = strings.TrimSuffix(content, "\n")
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return &content, nil
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}
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func readPEMFile(filepath string) (base64Ptr *string, err error) {
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pemData, err := ReadFromFile(filepath)
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if err != nil {
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return nil, fmt.Errorf("reading file: %w", err)
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}
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if pemData == nil {
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return nil, nil //nolint:nilnil
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}
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base64Data, err := extract.PEM([]byte(*pemData))
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if err != nil {
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return nil, fmt.Errorf("extracting base64 encoded data from PEM content: %w", err)
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}
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return &base64Data, nil
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}
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