dehub/config.go
mediocregopher 7c891bd5f2 Initial commit, can create master commit and verify previous master commits
message: Initial commit, can create master commit and verify previous master commits
change_hash: ADgeVBdfi1hA0TTDrBIkYHaQQYoxZaInZz1p/BAH35Ng
credentials:
- type: pgp_signature
  pub_key_id: 95C46FA6A41148AC
  body: 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
  account: mediocregopher
2020-02-15 15:13:50 -07:00

84 lines
2.2 KiB
Go

package dehub
import (
"dehub/accessctl"
"dehub/fs"
"dehub/sigcred"
"errors"
"fmt"
yaml "gopkg.in/yaml.v2"
)
// Account represents a single account defined in the Config.
type Account struct {
ID string `yaml:"id"`
Signifiers []sigcred.Signifier `yaml:"signifiers"`
Meta map[string]string `yaml:"meta,omitempty"`
}
// Config represents the structure of the main dehub configuration file, and is
// used to marshal/unmarshal the yaml file.
type Config struct {
Accounts []Account `yaml:"accounts"`
AccessControls []accessctl.AccessControl `yaml:"access_controls"`
}
func (r *Repo) loadConfig(fs fs.FS) (Config, error) {
rc, err := fs.Open(ConfigPath)
if err != nil {
return Config{}, fmt.Errorf("could not open config.yml: %w", err)
}
defer rc.Close()
var cfg Config
if err := yaml.NewDecoder(rc).Decode(&cfg); err != nil {
return cfg, fmt.Errorf("could not decode config.yml: %w", err)
}
// TODO validate Config
return cfg, nil
}
// LoadConfig loads the Config object from the HEAD of the repo, or directly
// from the filesystem if there is no HEAD yet.
func (r *Repo) LoadConfig() (Config, error) {
headFS, err := r.headOrRawFS()
if err != nil {
return Config{}, fmt.Errorf("error retrieving repo HEAD: %w", err)
}
return r.loadConfig(headFS)
}
func (r *Repo) signifierForCredential(fs fs.FS, cred sigcred.Credential) (sigcred.SignifierInterface, error) {
cfg, err := r.loadConfig(fs)
if err != nil {
return nil, fmt.Errorf("error loading config: %w", err)
}
var account Account
var ok bool
for _, account = range cfg.Accounts {
if account.ID == cred.AccountID {
ok = true
break
}
}
if !ok {
return nil, fmt.Errorf("no account object for account id %q present in config", cred.AccountID)
}
for i, sig := range account.Signifiers {
if sigInt, err := sig.Interface(); err != nil {
return nil, fmt.Errorf("error converting signifier index:%d to inteface: %w", i, err)
} else if ok, err := sigInt.Signed(fs, cred); err != nil {
return nil, fmt.Errorf("error checking if signfier index:%d signed credential: %w", i, err)
} else if ok {
return sigInt, nil
}
}
return nil, errors.New("no signifier found for credential")
}