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86 lines
2.3 KiB
86 lines
2.3 KiB
// Copyright 2015 clair 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 aptsources
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import (
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"bufio"
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"strings"
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"github.com/coreos/clair/database"
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"github.com/coreos/clair/worker/detectors"
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)
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// AptSourcesNamespaceDetector implements NamespaceDetector and detects the Namespace from the
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// /etc/apt/sources.list file.
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//
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// This detector is necessary to determine precise Debian version when it is
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// an unstable version for instance.
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type AptSourcesNamespaceDetector struct{}
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func init() {
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detectors.RegisterNamespaceDetector("apt-sources", &AptSourcesNamespaceDetector{})
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}
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func (detector *AptSourcesNamespaceDetector) Detect(data map[string][]byte) *database.Namespace {
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f, hasFile := data["etc/apt/sources.list"]
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if !hasFile {
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return nil
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}
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var OS, version string
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scanner := bufio.NewScanner(strings.NewReader(string(f)))
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for scanner.Scan() {
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// Format: man sources.list | https://wiki.debian.org/SourcesList)
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// deb uri distribution component1 component2 component3
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// deb-src uri distribution component1 component2 component3
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line := strings.Split(scanner.Text(), " ")
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if len(line) > 3 {
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// Only consider main component
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isMainComponent := false
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for _, component := range line[3:] {
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if component == "main" {
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isMainComponent = true
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break
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}
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}
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if !isMainComponent {
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continue
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}
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var found bool
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version, found = database.DebianReleasesMapping[line[2]]
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if found {
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OS = "debian"
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break
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}
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version, found = database.UbuntuReleasesMapping[line[2]]
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if found {
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OS = "ubuntu"
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break
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}
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}
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}
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if OS != "" && version != "" {
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return &database.Namespace{Name: OS + ":" + version}
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}
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return nil
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}
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func (detector *AptSourcesNamespaceDetector) GetRequiredFiles() []string {
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return []string{"etc/apt/sources.list"}
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}
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