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env.go
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env.go
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/*
Copyright 2022 TriggerMesh Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package webhooksource
import (
"fmt"
"strings"
pkgadapter "knative.dev/eventing/pkg/adapter/v2"
)
// NewEnvConfig satisfies pkgadapter.EnvConfigConstructor.
func NewEnvConfig() pkgadapter.EnvConfigAccessor {
return &envAccessor{}
}
type envAccessor struct {
pkgadapter.EnvConfig
EventType string `envconfig:"WEBHOOK_EVENT_TYPE" required:"true"`
EventSource string `envconfig:"WEBHOOK_EVENT_SOURCE" required:"true"`
EventExtensionAttributesFrom *ExtensionAttributesFrom `envconfig:"WEBHOOK_EVENT_EXTENSION_ATTRIBUTES_FROM"`
BasicAuthUsername string `envconfig:"WEBHOOK_BASICAUTH_USERNAME"`
BasicAuthPassword string `envconfig:"WEBHOOK_BASICAUTH_PASSWORD"`
CORSAllowOrigin string `envconfig:"WEBHOOK_CORS_ALLOW_ORIGIN"`
}
type ExtensionAttributesFrom struct {
method bool
path bool
host bool
queries bool
headers bool
}
// Decode an array of KeyMountedValues
func (ea *ExtensionAttributesFrom) Decode(value string) error {
for _, o := range strings.Split(value, ",") {
switch o {
case "method":
ea.method = true
case "path":
ea.path = true
case "host":
ea.host = true
case "queries":
ea.queries = true
case "headers":
ea.headers = true
default:
return fmt.Errorf("CloudEvent extension from HTTP element not supported: %s", o)
}
}
return nil
}