|
| 1 | +package analyzer |
| 2 | + |
| 3 | +import ( |
| 4 | + "encoding/json" |
| 5 | + "fmt" |
| 6 | + "regexp" |
| 7 | + "strings" |
| 8 | + |
| 9 | + "github.com/blang/semver" |
| 10 | + "github.com/pkg/errors" |
| 11 | + troubleshootv1beta2 "github.com/replicatedhq/troubleshoot/pkg/apis/troubleshoot/v1beta2" |
| 12 | + "github.com/replicatedhq/troubleshoot/pkg/collect" |
| 13 | +) |
| 14 | + |
| 15 | +type AnalyzeHostOS struct { |
| 16 | + hostAnalyzer *troubleshootv1beta2.HostOSAnalyze |
| 17 | +} |
| 18 | + |
| 19 | +func (a *AnalyzeHostOS) Title() string { |
| 20 | + return hostAnalyzerTitleOrDefault(a.hostAnalyzer.AnalyzeMeta, "Host OS Info") |
| 21 | +} |
| 22 | + |
| 23 | +func (a *AnalyzeHostOS) IsExcluded() (bool, error) { |
| 24 | + return isExcluded(a.hostAnalyzer.Exclude) |
| 25 | +} |
| 26 | + |
| 27 | +func (a *AnalyzeHostOS) Analyze(getCollectedFileContents func(string) ([]byte, error)) ([]*AnalyzeResult, error) { |
| 28 | + |
| 29 | + result := AnalyzeResult{} |
| 30 | + result.Title = a.Title() |
| 31 | + |
| 32 | + contents, err := getCollectedFileContents("system/hostos_info.json") |
| 33 | + if err != nil { |
| 34 | + return []*AnalyzeResult{&result}, errors.Wrap(err, "failed to get collected file") |
| 35 | + } |
| 36 | + |
| 37 | + var osInfo collect.HostOSInfo |
| 38 | + if err := json.Unmarshal(contents, &osInfo); err != nil { |
| 39 | + return []*AnalyzeResult{&result}, errors.Wrap(err, "failed to unmarshal host os info") |
| 40 | + } |
| 41 | + |
| 42 | + return analyzeOSVersionResult(osInfo, a.hostAnalyzer.Outcomes, a.Title()) |
| 43 | +} |
| 44 | + |
| 45 | +func analyzeOSVersionResult(osInfo collect.HostOSInfo, outcomes []*troubleshootv1beta2.Outcome, title string) ([]*AnalyzeResult, error) { |
| 46 | + |
| 47 | + if title == "" { |
| 48 | + title = "Host OS Info" |
| 49 | + } |
| 50 | + |
| 51 | + for _, outcome := range outcomes { |
| 52 | + |
| 53 | + result := AnalyzeResult{ |
| 54 | + Title: title, |
| 55 | + } |
| 56 | + when := "" |
| 57 | + message := "" |
| 58 | + uri := "" |
| 59 | + |
| 60 | + if outcome.Fail != nil { |
| 61 | + result.IsFail = true |
| 62 | + when = outcome.Fail.When |
| 63 | + message = outcome.Fail.Message |
| 64 | + uri = outcome.Fail.URI |
| 65 | + } else if outcome.Warn != nil { |
| 66 | + result.IsWarn = true |
| 67 | + when = outcome.Warn.When |
| 68 | + message = outcome.Warn.Message |
| 69 | + uri = outcome.Warn.URI |
| 70 | + } else if outcome.Pass != nil { |
| 71 | + result.IsPass = true |
| 72 | + when = outcome.Pass.When |
| 73 | + message = outcome.Pass.Message |
| 74 | + uri = outcome.Pass.URI |
| 75 | + } else { |
| 76 | + return nil, errors.New("empty outcome") |
| 77 | + } |
| 78 | + |
| 79 | + result.Message = message |
| 80 | + result.URI = uri |
| 81 | + // When is usually empty as the final case and should be treated as true |
| 82 | + if when == "" { |
| 83 | + return []*AnalyzeResult{&result}, nil |
| 84 | + } |
| 85 | + |
| 86 | + parts := strings.Split(when, " ") |
| 87 | + platform := parts[0] |
| 88 | + expectedVer := fixVersion(parts[2]) |
| 89 | + toleratedVer, err := semver.ParseTolerant(expectedVer) |
| 90 | + if err != nil { |
| 91 | + return []*AnalyzeResult{&result}, errors.Wrapf(err, "failed to parse tolerant: %s", expectedVer) |
| 92 | + } |
| 93 | + |
| 94 | + when = fmt.Sprintf("%s %v", parts[1], toleratedVer) |
| 95 | + whenRange, err := semver.ParseRange(when) |
| 96 | + if err != nil { |
| 97 | + return []*AnalyzeResult{&result}, errors.Wrapf(err, "failed to parse range: %s", when) |
| 98 | + } |
| 99 | + |
| 100 | + kernelInfo := fmt.Sprintf("%s-%s-kernel", osInfo.Platform, osInfo.PlatformVersion) |
| 101 | + if len(strings.Split(platform, "-")) == 3 && strings.Split(platform, "-")[2] == "kernel" { |
| 102 | + if platform == kernelInfo { |
| 103 | + fixedKernelVer := fixVersion(osInfo.KernelVersion) |
| 104 | + toleratedKernelVer, err := semver.ParseTolerant(fixedKernelVer) |
| 105 | + if err != nil { |
| 106 | + return []*AnalyzeResult{&result}, errors.Wrapf(err, "failed to parse tolerant: %v", fixedKernelVer) |
| 107 | + } |
| 108 | + if whenRange(toleratedKernelVer) { |
| 109 | + return []*AnalyzeResult{&result}, nil |
| 110 | + } |
| 111 | + } |
| 112 | + } else if platform == osInfo.Platform { |
| 113 | + fixedDistVer := fixVersion(osInfo.PlatformVersion) |
| 114 | + toleratedDistVer, err := semver.ParseTolerant(fixedDistVer) |
| 115 | + if err != nil { |
| 116 | + return []*AnalyzeResult{&result}, errors.Wrapf(err, "failed to parse tolerant: %v", fixedDistVer) |
| 117 | + } |
| 118 | + if whenRange(toleratedDistVer) { |
| 119 | + return []*AnalyzeResult{&result}, nil |
| 120 | + } |
| 121 | + } |
| 122 | + } |
| 123 | + |
| 124 | + return []*AnalyzeResult{}, nil |
| 125 | +} |
| 126 | + |
| 127 | +var rx = regexp.MustCompile(`^[0-9]+\.?[0-9]*\.?[0-9]*`) |
| 128 | + |
| 129 | +func fixVersion(versionStr string) string { |
| 130 | + |
| 131 | + splitStr := strings.Split(versionStr, ".") |
| 132 | + for i := 0; i < len(splitStr); i++ { |
| 133 | + if splitStr[i] != "0" { |
| 134 | + splitStr[i] = strings.TrimPrefix(splitStr[i], "0") |
| 135 | + } |
| 136 | + } |
| 137 | + fixTrailZero := strings.Join(splitStr, ".") |
| 138 | + version := rx.FindString(fixTrailZero) |
| 139 | + version = strings.TrimRight(version, ".") |
| 140 | + return version |
| 141 | +} |
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