90 lines
2.3 KiB
Go
90 lines
2.3 KiB
Go
package fingerreader
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import (
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"context"
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"fmt"
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"log/slog"
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"net/url"
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"os"
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"git.maronato.dev/maronato/finger/internal/config"
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"git.maronato.dev/maronato/finger/internal/log"
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"git.maronato.dev/maronato/finger/webfingers"
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"gopkg.in/yaml.v3"
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)
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type FingerReader struct {
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URNSFile []byte
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FingersFile []byte
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}
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func NewFingerReader() *FingerReader {
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return &FingerReader{}
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}
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func (f *FingerReader) ReadFiles(cfg *config.Config) error {
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// Read URNs file
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file, err := os.ReadFile(cfg.URNPath)
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if err != nil {
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// If the file does not exist and the path is the default, set the URNs to an empty map
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if os.IsNotExist(err) && cfg.URNPath == config.DefaultURNPath {
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f.URNSFile = []byte("")
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} else {
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return fmt.Errorf("error opening URNs file: %w", err)
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}
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}
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f.URNSFile = file
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// Read fingers file
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file, err = os.ReadFile(cfg.FingerPath)
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if err != nil {
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// If the file does not exist and the path is the default, set the fingers to an empty map
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if os.IsNotExist(err) && cfg.FingerPath == config.DefaultFingerPath {
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f.FingersFile = []byte("")
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} else {
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return fmt.Errorf("error opening fingers file: %w", err)
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}
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}
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f.FingersFile = file
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return nil
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}
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func (f *FingerReader) ReadFingerFile(ctx context.Context) (webfingers.WebFingers, error) {
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l := log.FromContext(ctx)
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urnAliases := make(webfingers.URNAliases)
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resources := make(webfingers.Resources)
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// Parse the URNs file
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if err := yaml.Unmarshal(f.URNSFile, &urnAliases); err != nil {
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return nil, fmt.Errorf("error unmarshalling URNs file: %w", err)
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}
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// The URNs file must be a map of strings to valid URLs
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for _, v := range urnAliases {
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if _, err := url.ParseRequestURI(v); err != nil {
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return nil, fmt.Errorf("error parsing URN URIs: %w", err)
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}
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}
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l.Debug("URNs file parsed successfully", slog.Int("number", len(urnAliases)), slog.Any("data", urnAliases))
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// Parse the fingers file
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if err := yaml.Unmarshal(f.FingersFile, &resources); err != nil {
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return nil, fmt.Errorf("error unmarshalling fingers file: %w", err)
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}
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l.Debug("Fingers file parsed successfully", slog.Int("number", len(resources)), slog.Any("data", resources))
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// Parse raw data
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fingers, err := webfingers.NewWebFingers(resources, urnAliases)
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if err != nil {
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return nil, fmt.Errorf("error parsing raw fingers: %w", err)
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}
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return fingers, nil
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}
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