dehub/config.go
mediocregopher a01f2b1512 implement the ability for users without an account to still submit accredited co...
---
type: change
message: implement the ability for users without an account to still submit accredited
  commits
change_hash: AIcRB2u380KAM345cCdexq3RzhDeEuDNT9gwcGDIj8xp
credentials:
- type: pgp_signature
  pub_key_id: 95C46FA6A41148AC
  body: 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
  account: mediocregopher
2020-04-11 17:10:18 -06:00

96 lines
2.6 KiB
Go

package dehub
import (
"errors"
"fmt"
"dehub.dev/src/dehub.git/accessctl"
"dehub.dev/src/dehub.git/fs"
"dehub.dev/src/dehub.git/sigcred"
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)
}
// older config versions also had access_controls be an array, but not using
// the action field. So filter out array elements without the action field.
acl := cfg.AccessControls
cfg.AccessControls = cfg.AccessControls[:0]
for _, ac := range acl {
if ac.Action == "" {
continue
}
cfg.AccessControls = append(cfg.AccessControls, ac)
}
// 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.headFS()
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(cred.AccountID); 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")
}