66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
package auth
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import (
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"os"
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"strings"
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)
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// UserParser Parses a string and return a userName/userHash. An error if the format of the string is incorrect.
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type UserParser func(user string) (string, string, error)
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const (
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defaultRealm = "traefik"
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authorizationHeader = "Authorization"
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)
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func getUsers(fileName string, appendUsers []string, parser UserParser) (map[string]string, error) {
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users, err := loadUsers(fileName, appendUsers)
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if err != nil {
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return nil, err
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}
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userMap := make(map[string]string)
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for _, user := range users {
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userName, userHash, err := parser(user)
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if err != nil {
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return nil, err
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}
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userMap[userName] = userHash
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}
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return userMap, nil
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}
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func loadUsers(fileName string, appendUsers []string) ([]string, error) {
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var users []string
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var err error
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if fileName != "" {
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users, err = getLinesFromFile(fileName)
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if err != nil {
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return nil, err
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}
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}
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return append(users, appendUsers...), nil
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}
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func getLinesFromFile(filename string) ([]string, error) {
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dat, err := os.ReadFile(filename)
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if err != nil {
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return nil, err
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}
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// Trim lines and filter out blanks
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rawLines := strings.Split(string(dat), "\n")
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var filteredLines []string
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for _, rawLine := range rawLines {
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line := strings.TrimSpace(rawLine)
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if line != "" && !strings.HasPrefix(line, "#") {
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filteredLines = append(filteredLines, line)
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}
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}
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return filteredLines, nil
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}
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