Initial QSfera import

Server/services/webdav/pkg/config/config.go

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+package config
+
+import (
+	"context"
+
+	"github.com/qsfera/server/pkg/shared"
+	"go-micro.dev/v4/client"
+)
+
+// Config combines all available configuration parts.
+type Config struct {
+	Commons *shared.Commons `yaml:"-"` // don't use this directly as configuration for a service
+
+	Service Service `yaml:"-"`
+
+	LogLevel string `yaml:"loglevel" env:"OC_LOG_LEVEL;WEBDAV_LOG_LEVEL" desc:"The log level. Valid values are: 'panic', 'fatal', 'error', 'warn', 'info', 'debug', 'trace'." introductionVersion:"1.0.0"`
+	Debug    Debug  `yaml:"debug"`
+
+	GRPCClientTLS *shared.GRPCClientTLS `yaml:"grpc_client_tls"`
+	GrpcClient    client.Client         `yaml:"-"`
+
+	HTTP HTTP `yaml:"http"`
+
+	DisablePreviews    bool            `yaml:"disablePreviews" env:"OC_DISABLE_PREVIEWS;WEBDAV_DISABLE_PREVIEWS" desc:"Set this option to 'true' to disable rendering of thumbnails triggered via webdav access. Note that when disabled, all access to preview related webdav paths will return a 404." introductionVersion:"1.0.0"`
+	QsferaPublicURL string          `yaml:"qsfera_public_url" env:"OC_URL;OC_PUBLIC_URL" desc:"URL, where КуСфера is reachable for users." introductionVersion:"1.0.0"`
+	WebdavNamespace    string          `yaml:"webdav_namespace" env:"WEBDAV_WEBDAV_NAMESPACE" desc:"CS3 path layout to use when forwarding /webdav requests" introductionVersion:"1.0.0"`
+	RevaGateway        string          `yaml:"reva_gateway" env:"OC_REVA_GATEWAY" desc:"CS3 gateway used to look up user metadata" introductionVersion:"1.0.0"`
+	Context            context.Context `yaml:"-"`
+}

Server/services/webdav/pkg/config/debug.go

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+package config
+
+// Debug defines the available debug configuration.
+type Debug struct {
+	Addr   string `yaml:"addr" env:"WEBDAV_DEBUG_ADDR" desc:"Bind address of the debug server, where metrics, health, config and debug endpoints will be exposed." introductionVersion:"1.0.0"`
+	Token  string `yaml:"token" env:"WEBDAV_DEBUG_TOKEN" desc:"Token to secure the metrics endpoint." introductionVersion:"1.0.0"`
+	Pprof  bool   `yaml:"pprof" env:"WEBDAV_DEBUG_PPROF" desc:"Enables pprof, which can be used for profiling." introductionVersion:"1.0.0"`
+	Zpages bool   `yaml:"zpages" env:"WEBDAV_DEBUG_ZPAGES" desc:"Enables zpages, which can be used for collecting and viewing in-memory traces." introductionVersion:"1.0.0"`
+}

Server/services/webdav/pkg/config/defaults/defaultconfig.go

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+package defaults
+
+import (
+	"strings"
+
+	"github.com/qsfera/server/pkg/shared"
+	"github.com/qsfera/server/pkg/structs"
+	"github.com/qsfera/server/services/webdav/pkg/config"
+)
+
+// FullDefaultConfig returns a fully initialized default configuration
+func FullDefaultConfig() *config.Config {
+	cfg := DefaultConfig()
+	EnsureDefaults(cfg)
+	Sanitize(cfg)
+	return cfg
+}
+
+// DefaultConfig returns a basic default configuration
+func DefaultConfig() *config.Config {
+	return &config.Config{
+		Debug: config.Debug{
+			Addr:   "127.0.0.1:9119",
+			Token:  "",
+			Pprof:  false,
+			Zpages: false,
+		},
+		HTTP: config.HTTP{
+			Addr:      "127.0.0.1:9115",
+			Root:      "/",
+			Namespace: "qsfera.web",
+			CORS: config.CORS{
+				AllowedOrigins:   []string{"*"},
+				AllowedMethods:   []string{"GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"},
+				AllowedHeaders:   []string{"Authorization", "Origin", "Content-Type", "Accept", "X-Requested-With", "X-Request-Id", "Cache-Control"},
+				AllowCredentials: true,
+			},
+		},
+		Service: config.Service{
+			Name: "webdav",
+		},
+		QsferaPublicURL: "https://localhost:9200",
+		WebdavNamespace:    "/users/{{.Id.OpaqueId}}",
+		RevaGateway:        shared.DefaultRevaConfig().Address,
+	}
+}
+
+// EnsureDefaults adds default values to the configuration if they are not set yet
+func EnsureDefaults(cfg *config.Config) {
+	if cfg.LogLevel == "" {
+		cfg.LogLevel = "error"
+	}
+
+	if cfg.GRPCClientTLS == nil && cfg.Commons != nil {
+		cfg.GRPCClientTLS = structs.CopyOrZeroValue(cfg.Commons.GRPCClientTLS)
+	}
+
+	if cfg.Commons != nil {
+		cfg.HTTP.TLS = cfg.Commons.HTTPServiceTLS
+	}
+}
+
+// Sanitize sanitized the configuration
+func Sanitize(cfg *config.Config) {
+	// sanitize config
+	if cfg.HTTP.Root != "/" {
+		cfg.HTTP.Root = strings.TrimSuffix(cfg.HTTP.Root, "/")
+	}
+
+}

Server/services/webdav/pkg/config/http.go

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+package config
+
+import "github.com/qsfera/server/pkg/shared"
+
+// CORS defines the available cors configuration.
+type CORS struct {
+	AllowedOrigins   []string `yaml:"allow_origins" env:"OC_CORS_ALLOW_ORIGINS;WEBDAV_CORS_ALLOW_ORIGINS" desc:"A list of allowed CORS origins. See following chapter for more details: *Access-Control-Allow-Origin* at https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Origin. See the Environment Variable Types description for more details." introductionVersion:"1.0.0"`
+	AllowedMethods   []string `yaml:"allow_methods" env:"OC_CORS_ALLOW_METHODS;WEBDAV_CORS_ALLOW_METHODS" desc:"A list of allowed CORS methods. See following chapter for more details: *Access-Control-Request-Method* at https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Request-Method. See the Environment Variable Types description for more details." introductionVersion:"1.0.0"`
+	AllowedHeaders   []string `yaml:"allow_headers" env:"OC_CORS_ALLOW_HEADERS;WEBDAV_CORS_ALLOW_HEADERS" desc:"A list of allowed CORS headers. See following chapter for more details: *Access-Control-Request-Headers* at https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Request-Headers. See the Environment Variable Types description for more details." introductionVersion:"1.0.0"`
+	AllowCredentials bool     `yaml:"allow_credentials" env:"OC_CORS_ALLOW_CREDENTIALS;WEBDAV_CORS_ALLOW_CREDENTIALS" desc:"Allow credentials for CORS.See following chapter for more details: *Access-Control-Allow-Credentials* at https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Access-Control-Allow-Credentials." introductionVersion:"1.0.0"`
+}
+
+// HTTP defines the available http configuration.
+type HTTP struct {
+	Addr      string                `yaml:"addr" env:"WEBDAV_HTTP_ADDR" desc:"The bind address of the HTTP service." introductionVersion:"1.0.0"`
+	Namespace string                `yaml:"-"`
+	Root      string                `yaml:"root" env:"WEBDAV_HTTP_ROOT" desc:"Subdirectory that serves as the root for this HTTP service." introductionVersion:"1.0.0"`
+	CORS      CORS                  `yaml:"cors"`
+	TLS       shared.HTTPServiceTLS `yaml:"tls"`
+}

Server/services/webdav/pkg/config/parser/parse.go

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+package parser
+
+import (
+	"errors"
+
+	occfg "github.com/qsfera/server/pkg/config"
+	"github.com/qsfera/server/services/webdav/pkg/config"
+	"github.com/qsfera/server/services/webdav/pkg/config/defaults"
+
+	"github.com/qsfera/server/pkg/config/envdecode"
+)
+
+// ParseConfig loads configuration from known paths.
+func ParseConfig(cfg *config.Config) error {
+	err := occfg.BindSourcesToStructs(cfg.Service.Name, cfg)
+	if err != nil {
+		return err
+	}
+
+	defaults.EnsureDefaults(cfg)
+
+	// load all env variables relevant to the config in the current context.
+	if err := envdecode.Decode(cfg); err != nil {
+		// no environment variable set for this config is an expected "error"
+		if !errors.Is(err, envdecode.ErrNoTargetFieldsAreSet) {
+			return err
+		}
+	}
+
+	defaults.Sanitize(cfg)
+
+	return Validate(cfg)
+}
+
+func Validate(cfg *config.Config) error {
+	return nil
+}

Server/services/webdav/pkg/config/service.go

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+package config
+
+// Service defines the available service configuration.
+type Service struct {
+	Name string `yaml:"-"`
+}