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48 lines
1.5 KiB
Go
48 lines
1.5 KiB
Go
// Copyright 2022 Woodpecker Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package shared
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import "strings"
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// NewSecretsReplacer creates a new strings.Replacer to replace sensitive
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// strings with asterisks. It takes a slice of secrets strings as input
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// and returns a populated strings.Replacer that will replace those
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// secrets with asterisks. Each secret string is split on newlines to
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// handle multi-line secrets.
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func NewSecretsReplacer(secrets []string) *strings.Replacer {
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var oldNew []string
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// Strings shorter than minStringLength are not considered secrets.
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// Do not sanitize them.
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const minStringLength = 3
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for _, old := range secrets {
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old = strings.TrimSpace(old)
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if len(old) <= minStringLength {
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continue
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}
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// since replacer is executed on each line we have to split multi-line-secrets
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for _, part := range strings.Split(old, "\n") {
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if len(part) == 0 {
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continue
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}
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oldNew = append(oldNew, part)
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oldNew = append(oldNew, "********")
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}
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}
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return strings.NewReplacer(oldNew...)
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}
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