Diffstat (limited to 'config/config.go')
| -rw-r--r-- | config/config.go | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/config/config.go b/config/config.go new file mode 100644 index 0000000..9185e6a --- /dev/null +++ b/config/config.go @@ -0,0 +1,305 @@ +package config + +import ( + "encoding/json" + "fmt" + "log/slog" + "os" + + "github.com/go-playground/validator/v10" + "gopkg.in/yaml.v3" +) + +type Config struct { + LogLevel slog.Level `json:"LogLevel" yaml:"logLevel" validate:"required"` + Endpoint EndpointConfig `json:"Endpoint" yaml:"endpoint" validate:"required"` + BlogPages BlogPagesConfig `json:"BlogPages" yaml:"blogPages" validate:"required"` + FactGiver FactGiverConfig `json:"FactGiver" yaml:"factGiver" validate:"required"` + LocalePath string `json:"LocalePath" yaml:"localePath" validate:"required,filepath"` + AvailableLanguages []AvailableLanguageConfig `json:"AvailableLanguages" yaml:"availableLanguages" validate:"required"` + Auth AuthConfig `json:"Auth" yaml:"auth" validate:"required"` + Mail MailConfig `json:"Mail" yaml:"mail" validate:"required"` + CanonicalEndpoint string `json:"CanonicalEndpoint" yaml:"canonicalEndpoint" validate:"required"` + Meta []MetaConfig `json:"Meta" yaml:"meta"` + PhotoStorage PhotoStorageConfig `json:"PhotoStorage" yaml:"photoStorage"` + StaticStorage StaticStorageConfig `json:"StaticStorage" yaml:"staticStorage" validate:"required"` + AllowOrigins []string `json:"AllowOrigins" yaml:"allowOrigins"` +} + +type EndpointConfig struct { + Type string `json:"Type" yaml:"type" validate:"required,oneof=http unix"` + Config any `json:"Config" yaml:"config" validate:"required"` +} + +func (ec *EndpointConfig) UnmarshalJSON(data []byte) error { + var tmp struct { + Type string `json:"Type"` + Config json.RawMessage `json:"Config"` + } + + if err := json.Unmarshal(data, &tmp); err != nil { + return err + } + + ec.Type = tmp.Type + + switch tmp.Type { + case "http": + var httpConfig HttpConfig + if err := json.Unmarshal(tmp.Config, &httpConfig); err != nil { + return fmt.Errorf("unmarshal HttpConfig: %w", err) + } + ec.Config = &httpConfig + case "unix": + var unixConfig UnixConfig + if err := json.Unmarshal(tmp.Config, &unixConfig); err != nil { + return fmt.Errorf("unmarshal UnixConfig: %w", err) + } + ec.Config = &unixConfig + default: + return fmt.Errorf("unsupported storage type: %s", tmp.Type) + } + + return nil +} + +func (ec *EndpointConfig) UnmarshalYAML(value *yaml.Node) error { + var tmp struct { + Type string `yaml:"type"` + Config yaml.Node `yaml:"config"` + } + + if err := value.Decode(&tmp); err != nil { + return err + } + + ec.Type = tmp.Type + + switch tmp.Type { + case "http": + var httpConfig HttpConfig + if err := tmp.Config.Decode(&httpConfig); err != nil { + return fmt.Errorf("unmarshal HttpConfig: %w", err) + } + ec.Config = &httpConfig + case "unix": + var unixConfig UnixConfig + if err := tmp.Config.Decode(&unixConfig); err != nil { + return fmt.Errorf("unmarshal UnixConfig: %w", err) + } + ec.Config = &unixConfig + default: + return fmt.Errorf("unsupported storage type: %s", tmp.Type) + } + + return nil +} + +type HttpConfig struct { + ListenOn string `json:"ListenOn" yaml:"listenOn" validate:"required"` +} + +type UnixConfig struct { + Path string `json:"Path" yaml:"path" validate:"required"` + Chmod string `json:"Chmod" yaml:"chmod" validate:"oneof=0600 0660 0666"` +} + +type BlogPagesConfig struct { + Storage StorageConfig `json:"Storage" yaml:"storage" validate:"required"` +} + +type StorageConfig struct { + Type string `json:"Type" yaml:"type" validate:"required,oneof=b2 s3"` + Config any `json:"Config" yaml:"config" validate:"required"` +} + +func (sc *StorageConfig) UnmarshalJSON(data []byte) error { + var tmp struct { + Type string `json:"Type"` + Config json.RawMessage `json:"Config"` + } + + if err := json.Unmarshal(data, &tmp); err != nil { + return err + } + + sc.Type = tmp.Type + + switch tmp.Type { + case "b2": + var b2Config B2Config + if err := json.Unmarshal(tmp.Config, &b2Config); err != nil { + return fmt.Errorf("unmarshal B2Config: %w", err) + } + sc.Config = &b2Config + case "s3": + var s3Config S3Config + if err := json.Unmarshal(tmp.Config, &s3Config); err != nil { + return fmt.Errorf("unmarshal S3Config: %w", err) + } + sc.Config = &s3Config + default: + return fmt.Errorf("unsupported storage type: %s", tmp.Type) + } + + return nil +} + +func (sc *StorageConfig) UnmarshalYAML(value *yaml.Node) error { + var tmp struct { + Type string `yaml:"type"` + Config yaml.Node `yaml:"config"` + } + + if err := value.Decode(&tmp); err != nil { + return err + } + + sc.Type = tmp.Type + + switch tmp.Type { + case "b2": + var b2Config B2Config + if err := tmp.Config.Decode(&b2Config); err != nil { + return fmt.Errorf("unmarshal B2Config: %w", err) + } + sc.Config = &b2Config + case "s3": + var s3Config S3Config + if err := tmp.Config.Decode(&s3Config); err != nil { + return fmt.Errorf("unmarshal S3Config: %w", err) + } + sc.Config = &s3Config + default: + return fmt.Errorf("unsupported storage type: %s", tmp.Type) + } + + return nil +} + +type B2Config struct { + BucketName string `json:"BucketName" yaml:"bucketName" validate:"required,min=1"` + Region string `json:"Region" yaml:"region" validate:"required,min=1"` + Prefix string `json:"Prefix" yaml:"prefix"` + KeyID string `json:"KeyID" yaml:"keyID"` + ApplicationKey string `json:"ApplicationKey" yaml:"applicationKey"` +} + +type S3Config struct { + BucketName string `json:"BucketName" yaml:"bucketName" validate:"required,min=1"` + Region string `json:"Region" yaml:"region" validate:"required,min=1"` + Prefix string `json:"Prefix" yaml:"prefix"` + Endpoint string `json:"Endpoint" yaml:"endpoint" validate:"url"` + UsePathStyle bool `json:"UsePathStyle"` + AccessKeyID string `json:"AccessKeyID" yaml:"accessKeyID"` + SecretAccessKey string `json:"SecretAccessKey" yaml:"secretAccessKey"` +} + +type FactGiverConfig struct { + Storage StorageConfig `json:"Storage" yaml:"storage" validate:"required"` + FactsFileName string `json:"FactsFileName" yaml:"factsFileName" validate:"required"` +} + +type AvailableLanguageConfig struct { + Name string `json:"Name" yaml:"name" validate:"required"` + Alt string `json:"Alt" yaml:"alt"` + Flag string `json:"Flag" yaml:"flag" validate:"url"` + LocFile string `json:"LocFile" yaml:"locFile" validate:"required,filepath"` +} + +type AuthConfig struct { + Salt string `json:"Salt" yaml:"salt" validate:"required"` + Db DbConfig `json:"Db" yaml:"db" validate:"required"` +} + +type DbConfig struct { + Type string `json:"Type" yaml:"type" validate:"required,oneof=sqlite3"` + Cfg Sqlite3Config `json:"Config" yaml:"config"` +} + +type Sqlite3Config struct { + DSN string `json:"DSN" yaml:"dsn" validate:"required"` +} + +type MailConfig struct { + ClientHost string `json:"ClientHost" yaml:"clientHost" validate:"required"` + MailHost string `json:"MailHost" yaml:"mailHost" validate:"required"` + PublicName string `json:"PublicName" yaml:"publicName" validate:"required"` + MailAddress string `json:"MailAddress" yaml:"mailAddress" validate:"required"` + Username string `json:"Username" yaml:"username" validate:"required"` + Password string `json:"Password" yaml:"password" validate:"required"` + Salt string `json:"Salt" yaml:"salt" validate:"required"` + Trigger TriggerConfig `json:"Trigger" yaml:"trigger" validate:"required"` +} + +type TriggerConfig struct { + OnNewPost string `json:"OnNewPost" yaml:"onNewPost" validate:"cron,required"` +} + +type MetaConfig struct { + Name string `json:"Name" yaml:"name"` + Value string `json:"Value" yaml:"value"` +} + +type PhotoStorageConfig struct { + Full PhotoTypeConfig `json:"Full" yaml:"full" validate:"required"` + Webp PhotoTypeConfig `json:"Webp" yaml:"webp"` + Thumbnail1600p PhotoTypeConfig `json:"Thumbnail1600p" yaml:"thumbnail1600p"` + Thumbnail1200p PhotoTypeConfig `json:"Thumbnail1200p" yaml:"thumbnail1200p"` + Thumbnail800p PhotoTypeConfig `json:"Thumbnail800p" yaml:"thumbnail800p"` + Thumbnail560p PhotoTypeConfig `json:"Thumbnail560p" yaml:"thumbnail560p"` + Thumbnail320p PhotoTypeConfig `json:"Thumbnail320p" yaml:"thumbnail320p"` + HomePageGifs HomePageGifsConfig `json:"HomePageGifs" yaml:"homePageGifs"` +} + +type PhotoTypeConfig struct { + BaseUrl string `json:"BaseUrl" yaml:"baseUrl" validate:"url,required"` +} + +type HomePageGifsConfig struct { + BaseUrl string `json:"BaseUrl" yaml:"baseUrl" validate:"url,required"` + Indexes []string `json:"Indexes" yaml:"indexes"` +} + +type StaticStorageConfig struct { + BaseUrl string `json:"BaseUrl" yaml:"baseUrl" validate:"url,required"` + Map MapStorageConfig `json:"Map" yaml:"map" validate:"required"` +} + +type MapStorageConfig struct { + BaseUrl string `json:"BaseUrl" yaml:"baseUrl" validate:"url,required"` + PMTiles string `json:"PMTiles" yaml:"pmTiles" validate:"required"` +} + +func LoadConfig(path string, config *Config) error { + fileBytes, err := os.ReadFile(path) + if err != nil { + return err + } + + expandedFileBytes := []byte(os.ExpandEnv(string(fileBytes))) + + if err = yaml.Unmarshal(expandedFileBytes, config); err != nil { + return err + } + + return nil +} + +func InitConfig(path string) (*Config, error) { + config := &Config{} + if err := LoadConfig(path, config); err != nil { + return nil, err + } + + if config.Endpoint.Type == "unix" && config.Endpoint.Config.(*UnixConfig).Chmod == "" { + config.Endpoint.Config.(*UnixConfig).Chmod = "0660" + } + + validate := validator.New(validator.WithRequiredStructEnabled()) + if err := validate.Struct(config); err != nil { + return nil, err + } + + return config, nil +} |