go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/gae/filter/featureBreaker/mail.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  
    20  	"go.chromium.org/luci/gae/service/mail"
    21  )
    22  
    23  type mailState struct {
    24  	*state
    25  
    26  	c context.Context
    27  	mail.RawInterface
    28  }
    29  
    30  var _ mail.RawInterface = (*mailState)(nil)
    31  
    32  func (m *mailState) Send(msg *mail.Message) error {
    33  	return m.run(m.c, func() error { return m.RawInterface.Send(msg) })
    34  }
    35  
    36  func (m *mailState) SendToAdmins(msg *mail.Message) error {
    37  	return m.run(m.c, func() error { return m.RawInterface.SendToAdmins(msg) })
    38  }
    39  
    40  // FilterMail installs a featureBreaker mail filter in the context.
    41  func FilterMail(c context.Context, defaultError error) (context.Context, FeatureBreaker) {
    42  	state := newState(defaultError)
    43  	return mail.AddFilters(c, func(ic context.Context, i mail.RawInterface) mail.RawInterface {
    44  		return &mailState{state, ic, i}
    45  	}), state
    46  }