Example #1
0
// Adds a database to the ServerContext given its configuration.
func (sc *ServerContext) AddDatabaseFromConfig(config *DbConfig) error {
	server := "http://localhost:8091"
	pool := "default"
	bucketName := config.name

	if config.Server != nil {
		server = *config.Server
	}
	if config.Pool != nil {
		pool = *config.Pool
	}
	if config.Bucket != nil {
		bucketName = *config.Bucket
	}
	dbName := config.name
	if dbName == "" {
		dbName = bucketName
	}
	base.Log("Opening db /%s as bucket %q, pool %q, server <%s>",
		dbName, bucketName, pool, server)

	if err := db.ValidateDatabaseName(dbName); err != nil {
		return err
	}

	// Connect to the bucket and add the database:
	bucket, err := db.ConnectToBucket(server, pool, bucketName)
	if err != nil {
		return err
	}
	dbcontext, err := db.NewDatabaseContext(dbName, bucket)
	if err != nil {
		return err
	}
	if config.Sync != nil {
		if err := dbcontext.ApplySyncFun(*config.Sync); err != nil {
			return err
		}
	}

	if dbcontext.ChannelMapper == nil {
		base.Warn("Database %q sync function undefined; using default", dbName)
	}

	// Create default users & roles:
	if err := sc.installPrincipals(dbcontext, config.Roles, "role"); err != nil {
		return err
	} else if err := sc.installPrincipals(dbcontext, config.Users, "user"); err != nil {
		return err
	}

	// Register it so HTTP handlers can find it:
	if err := sc.registerDatabase(dbcontext); err != nil {
		return err
	}
	return nil
}
Example #2
0
// Returns the DatabaseContext with the given name
func (sc *ServerContext) GetDatabase(name string) (*db.DatabaseContext, error) {
	sc.lock.RLock()
	dbc := sc.databases_[name]
	sc.lock.RUnlock()
	if dbc != nil {
		return dbc, nil
	} else if db.ValidateDatabaseName(name) != nil {
		return nil, &base.HTTPError{http.StatusBadRequest, "invalid database name '" + name + "'"}
	} else if sc.config.ConfigServer == nil {
		return nil, &base.HTTPError{http.StatusNotFound, "no such database '" + name + "'"}
	} else {
		// Let's ask the config server if it knows this database:
		base.Log("Asking config server %q about db %q...", *sc.config.ConfigServer, name)
		config, err := sc.getDbConfigFromServer(name)
		if err != nil {
			return nil, err
		}
		if dbc, err = sc.AddDatabaseFromConfig(config); err != nil {
			return nil, err
		}
		return dbc, nil
	}
}
Example #3
0
// Adds a database to the ServerContext given its configuration.
func (sc *ServerContext) AddDatabaseFromConfig(config *DbConfig) (*db.DatabaseContext, error) {
	server := "http://localhost:8091"
	pool := "default"
	bucketName := config.name

	if config.Server != nil {
		server = *config.Server
	}
	if config.Pool != nil {
		pool = *config.Pool
	}
	if config.Bucket != nil {
		bucketName = *config.Bucket
	}
	dbName := config.name
	if dbName == "" {
		dbName = bucketName
	}
	base.Log("Opening db /%s as bucket %q, pool %q, server <%s>",
		dbName, bucketName, pool, server)

	if err := db.ValidateDatabaseName(dbName); err != nil {
		return nil, err
	}

	var importDocs, autoImport bool
	switch config.ImportDocs {
	case nil, false:
	case true:
		importDocs = true
	case "continuous":
		importDocs = true
		autoImport = true
	default:
		return nil, fmt.Errorf("Unrecognized value for ImportDocs: %#v", config.ImportDocs)
	}

	// Connect to the bucket and add the database:
	spec := base.BucketSpec{
		Server:     server,
		PoolName:   pool,
		BucketName: bucketName,
	}
	if config.Username != "" {
		spec.Auth = config
	}
	bucket, err := db.ConnectToBucket(spec)
	if err != nil {
		return nil, err
	}
	dbcontext, err := db.NewDatabaseContext(dbName, bucket, autoImport)
	if err != nil {
		return nil, err
	}

	syncFn := ""
	if config.Sync != nil {
		syncFn = *config.Sync
	}
	if err := dbcontext.ApplySyncFun(syncFn, importDocs); err != nil {
		return nil, err
	}

	if config.RevsLimit != nil && *config.RevsLimit > 0 {
		dbcontext.RevsLimit = *config.RevsLimit
	}

	if dbcontext.ChannelMapper == nil {
		base.Warn("Database %q sync function undefined; using default", dbName)
	}

	// Create default users & roles:
	if err := sc.installPrincipals(dbcontext, config.Roles, "role"); err != nil {
		return nil, err
	} else if err := sc.installPrincipals(dbcontext, config.Users, "user"); err != nil {
		return nil, err
	}

	// Register it so HTTP handlers can find it:
	if err := sc.registerDatabase(dbcontext); err != nil {
		dbcontext.Close()
		return nil, err
	}
	return dbcontext, nil
}
Example #4
0
// Adds a database to the ServerContext given its configuration.
func (sc *ServerContext) AddDatabaseFromConfig(config *DbConfig) (*db.DatabaseContext, error) {
	server := "http://localhost:8091"
	pool := "default"
	bucketName := config.name

	if config.Server != nil {
		server = *config.Server
	}
	if config.Pool != nil {
		pool = *config.Pool
	}
	if config.Bucket != nil {
		bucketName = *config.Bucket
	}
	dbName := config.name
	if dbName == "" {
		dbName = bucketName
	}
	base.Log("Opening db /%s as bucket %q, pool %q, server <%s>",
		dbName, bucketName, pool, server)

	if err := db.ValidateDatabaseName(dbName); err != nil {
		return nil, err
	}

	var importDocs, autoImport bool
	switch config.ImportDocs {
	case nil, false:
	case true:
		importDocs = true
	case "continuous":
		importDocs = true
		autoImport = true
	default:
		return nil, fmt.Errorf("Unrecognized value for ImportDocs: %#v", config.ImportDocs)
	}

	// Connect to the bucket and add the database:
	spec := base.BucketSpec{
		Server:     server,
		PoolName:   pool,
		BucketName: bucketName,
	}
	if config.Username != "" {
		spec.Auth = config
	}
	bucket, err := db.ConnectToBucket(spec)
	if err != nil {
		return nil, err
	}
	dbcontext, err := db.NewDatabaseContext(dbName, bucket, autoImport)
	if err != nil {
		return nil, err
	}

	syncFn := ""
	if config.Sync != nil {
		syncFn = *config.Sync
	}
	if err := sc.applySyncFunction(dbcontext, syncFn); err != nil {
		return nil, err
	}

	if importDocs {
		db, _ := db.GetDatabase(dbcontext, nil)
		if _, err := db.UpdateAllDocChannels(false, true); err != nil {
			return nil, err
		}
	}

	if config.RevsLimit != nil && *config.RevsLimit > 0 {
		dbcontext.RevsLimit = *config.RevsLimit
	}

	if dbcontext.ChannelMapper == nil {
		base.Log("Using default sync function 'channel(doc.channels)' for database %q", dbName)
	}

	// Create default users & roles:
	if err := sc.installPrincipals(dbcontext, config.Roles, "role"); err != nil {
		return nil, err
	} else if err := sc.installPrincipals(dbcontext, config.Users, "user"); err != nil {
		return nil, err
	}

	// Install bucket-shadower if any:
	if shadow := config.Shadow; shadow != nil {
		if err := sc.startShadowing(dbcontext, shadow); err != nil {
			base.Warn("Database %q: unable to connect to external bucket for shadowing: %v",
				dbName, err)
		}
	}

	// Register it so HTTP handlers can find it:
	if err := sc.registerDatabase(dbcontext); err != nil {
		dbcontext.Close()
		return nil, err
	}
	sc.setDatabaseConfig(config.name, config)
	return dbcontext, nil
}