go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/gae/filter/featureBreaker/gi.go (about)

     1  // Copyright 2015 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package featureBreaker
    16  
    17  import (
    18  	"context"
    19  	"time"
    20  
    21  	"go.chromium.org/luci/gae/service/info"
    22  )
    23  
    24  type infoState struct {
    25  	*state
    26  
    27  	c context.Context
    28  	info.RawInterface
    29  }
    30  
    31  func (g *infoState) ModuleHostname(module, version, instance string) (ret string, err error) {
    32  	err = g.run(g.c, func() (err error) {
    33  		ret, err = g.RawInterface.ModuleHostname(module, version, instance)
    34  		return
    35  	})
    36  	return
    37  }
    38  
    39  func (g *infoState) ServiceAccount() (ret string, err error) {
    40  	err = g.run(g.c, func() (err error) {
    41  		ret, err = g.RawInterface.ServiceAccount()
    42  		return
    43  	})
    44  	return
    45  }
    46  
    47  func (g *infoState) Namespace(namespace string) (c context.Context, err error) {
    48  	err = g.run(g.c, func() (err error) {
    49  		c, err = g.RawInterface.Namespace(namespace)
    50  		return
    51  	})
    52  	return
    53  }
    54  
    55  func (g *infoState) AccessToken(scopes ...string) (token string, expiry time.Time, err error) {
    56  	err = g.run(g.c, func() (err error) {
    57  		token, expiry, err = g.RawInterface.AccessToken(scopes...)
    58  		return
    59  	})
    60  	return
    61  }
    62  
    63  func (g *infoState) PublicCertificates() (ret []info.Certificate, err error) {
    64  	err = g.run(g.c, func() (err error) {
    65  		ret, err = g.RawInterface.PublicCertificates()
    66  		return
    67  	})
    68  	return
    69  }
    70  
    71  func (g *infoState) SignBytes(bytes []byte) (keyName string, signature []byte, err error) {
    72  	err = g.run(g.c, func() (err error) {
    73  		keyName, signature, err = g.RawInterface.SignBytes(bytes)
    74  		return
    75  	})
    76  	return
    77  }
    78  
    79  // FilterGI installs a featureBreaker info filter in the context.
    80  func FilterGI(c context.Context, defaultError error) (context.Context, FeatureBreaker) {
    81  	state := newState(defaultError)
    82  	return info.AddFilters(c, func(ic context.Context, i info.RawInterface) info.RawInterface {
    83  		return &infoState{state, ic, i}
    84  	}), state
    85  }