100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package configuration
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import (
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_ "embed" // Embed config.template.yml.
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"errors"
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"fmt"
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"io/ioutil"
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"os"
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"strings"
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"github.com/spf13/viper"
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"gopkg.in/yaml.v2"
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"github.com/authelia/authelia/internal/configuration/schema"
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"github.com/authelia/authelia/internal/configuration/validator"
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"github.com/authelia/authelia/internal/logging"
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)
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// Read a YAML configuration and create a Configuration object out of it.
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func Read(configPath string) (*schema.Configuration, []error) {
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logger := logging.Logger()
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if configPath == "" {
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return nil, []error{errors.New("No config file path provided")}
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}
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_, err := os.Stat(configPath)
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if err != nil {
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errs := []error{
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fmt.Errorf("Unable to find config file: %v", configPath),
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fmt.Errorf("Generating config file: %v", configPath),
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}
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err = generateConfigFromTemplate(configPath)
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if err != nil {
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errs = append(errs, err)
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} else {
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errs = append(errs, fmt.Errorf("Generated configuration at: %v", configPath))
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}
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return nil, errs
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}
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file, err := ioutil.ReadFile(configPath)
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if err != nil {
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return nil, []error{fmt.Errorf("Failed to %v", err)}
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}
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var data interface{}
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err = yaml.Unmarshal(file, &data)
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if err != nil {
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return nil, []error{fmt.Errorf("Error malformed %v", err)}
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}
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viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
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// Dynamically load the secret env names from the SecretNames map.
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for _, secretName := range validator.SecretNames {
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_ = viper.BindEnv(validator.SecretNameToEnvName(secretName))
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}
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viper.SetConfigFile(configPath)
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_ = viper.ReadInConfig()
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var configuration schema.Configuration
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viper.Unmarshal(&configuration) //nolint:errcheck // TODO: Legacy code, consider refactoring time permitting.
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val := schema.NewStructValidator()
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validator.ValidateSecrets(&configuration, val, viper.GetViper())
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validator.ValidateConfiguration(&configuration, val)
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validator.ValidateKeys(val, viper.AllKeys())
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if val.HasErrors() {
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return nil, val.Errors()
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}
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if val.HasWarnings() {
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for _, warn := range val.Warnings() {
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logger.Warnf(warn.Error())
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}
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}
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return &configuration, nil
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}
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//go:embed config.template.yml
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var cfg []byte
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func generateConfigFromTemplate(configPath string) error {
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err := ioutil.WriteFile(configPath, cfg, 0600)
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if err != nil {
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return fmt.Errorf("Unable to generate %v: %v", configPath, err)
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}
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return nil
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}
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