mirror of
https://github.com/featurebasedb/featurebase.git
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77 lines
3.4 KiB
Go
77 lines
3.4 KiB
Go
// Copyright 2021 Molecula Corp. All rights reserved.
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package ctl
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import (
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"time"
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pilosa "github.com/molecula/featurebase/v3"
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"github.com/molecula/featurebase/v3/encoding/proto"
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"github.com/molecula/featurebase/v3/logger"
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"github.com/molecula/featurebase/v3/server"
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"github.com/pkg/errors"
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"github.com/spf13/pflag"
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)
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// CommandWithTLSSupport is the interface for commands which has TLS settings
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type CommandWithTLSSupport interface {
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TLSHost() string
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TLSConfiguration() server.TLSConfig
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Logger() logger.Logger
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}
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// SetTLSConfig creates common TLS flags
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func SetTLSConfig(flags *pflag.FlagSet, prefix string, certificatePath *string, certificateKeyPath *string, caCertPath *string, skipVerify *bool, enableClientVerification *bool) {
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flags.StringVarP(certificatePath, prefix+"tls.certificate", "", "", "TLS certificate path (usually has the .crt or .pem extension)")
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flags.StringVarP(certificateKeyPath, prefix+"tls.key", "", "", "TLS certificate key path (usually has the .key extension)")
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flags.StringVarP(caCertPath, prefix+"tls.ca-certificate", "", "", "TLS CA certificate path (usually has the .pem extension)")
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flags.BoolVarP(skipVerify, prefix+"tls.skip-verify", "", false, "Skip TLS certificate server verification (not secure)")
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flags.BoolVarP(enableClientVerification, prefix+"tls.enable-client-verification", "", false, "Enable TLS certificate client verification for incoming connections")
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}
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// AnyClientOption can be either pilosa.InternalClientOption or
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// pilosa.ClientOption. The internal options are specific to the
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// featurebase client, whereas the client options are applied to the
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// Go HTTP client that gets used under the hood.
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type AnyClientOption interface{}
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// commandClient returns a pilosa.InternalHTTPClient for the command
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func commandClient(cmd CommandWithTLSSupport, opts ...AnyClientOption) (*pilosa.InternalClient, error) {
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internalopts, clientopts, err := separateOptions(opts...)
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if err != nil {
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return nil, errors.Wrap(err, "separating client options")
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}
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// we default dial timeout to 3s in commandClient, but prepend it
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// to the option list so other options can override it.
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clientopts = append([]pilosa.ClientOption{pilosa.ClientDialTimeoutOption(time.Second * 3)}, clientopts...)
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internalopts = append([]pilosa.InternalClientOption{pilosa.WithSerializer(proto.Serializer{})}, internalopts...)
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tls := cmd.TLSConfiguration()
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tlsConfig, err := server.GetTLSConfig(&tls, cmd.Logger())
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if err != nil {
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return nil, errors.Wrap(err, "getting tls config")
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}
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client, err := pilosa.NewInternalClient(cmd.TLSHost(), pilosa.GetHTTPClient(tlsConfig, clientopts...), internalopts...)
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if err != nil {
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return nil, errors.Wrap(err, "getting internal client")
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}
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return client, err
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}
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// separateOptions splits the list of AnyClientOption into the two
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// possible types.
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func separateOptions(opts ...AnyClientOption) ([]pilosa.InternalClientOption, []pilosa.ClientOption, error) {
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internalopts := []pilosa.InternalClientOption{}
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clientopts := []pilosa.ClientOption{}
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for _, opt := range opts {
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if iopt, ok := opt.(pilosa.InternalClientOption); ok {
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internalopts = append(internalopts, iopt)
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continue
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}
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if copt, ok := opt.(pilosa.ClientOption); ok {
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clientopts = append(clientopts, copt)
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continue
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}
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return nil, nil, errors.Errorf("opt: %+v of type %[1]T must be an InternalClientOption or a ClientOption", opt)
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}
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return internalopts, clientopts, nil
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}
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