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mssql.go
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mssql.go
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package analyzer
import (
"encoding/json"
"fmt"
"path"
"strconv"
"strings"
"github.com/hashicorp/go-version"
"github.com/pkg/errors"
troubleshootv1beta2 "github.com/replicatedhq/troubleshoot/pkg/apis/troubleshoot/v1beta2"
"github.com/replicatedhq/troubleshoot/pkg/collect"
)
type AnalyzeMssql struct {
analyzer *troubleshootv1beta2.DatabaseAnalyze
}
func (a *AnalyzeMssql) Title() string {
title := a.analyzer.CheckName
if title == "" {
title = a.collectorName()
}
return title
}
func (a *AnalyzeMssql) IsExcluded() (bool, error) {
return isExcluded(a.analyzer.Exclude)
}
func (a *AnalyzeMssql) Analyze(getFile getCollectedFileContents, findFiles getChildCollectedFileContents) ([]*AnalyzeResult, error) {
result, err := analyzeMssql(a.analyzer, getFile)
if err != nil {
return nil, err
}
result.Strict = a.analyzer.Strict.BoolOrDefaultFalse()
return []*AnalyzeResult{result}, nil
}
func (a *AnalyzeMssql) collectorName() string {
if a.analyzer.CollectorName != "" {
return a.analyzer.CollectorName
}
return "mssql"
}
func compareMssqlConditionalToActual(conditional string, result *collect.DatabaseConnection) (bool, error) {
parts := strings.Split(strings.TrimSpace(conditional), " ")
if len(parts) != 3 {
return false, errors.New("unable to parse conditional")
}
switch parts[0] {
case "connected":
expected, err := strconv.ParseBool(parts[2])
if err != nil {
return false, errors.Wrap(err, "failed to parse bool")
}
switch parts[1] {
case "=", "==", "===":
return expected == result.IsConnected, nil
case "!=", "!==":
return expected != result.IsConnected, nil
}
return false, errors.New("unable to parse postgres connected analyzer")
case "version":
expected, err := version.NewVersion(strings.Replace(parts[2], "x", "0", -1))
if err != nil {
return false, errors.Wrap(err, "failed to parse expected version")
}
operation := parts[1]
switch operation {
case "=", "==", "===":
operation = "="
case "!=", "!==":
operation = "!="
}
actual, err := version.NewVersion(strings.Replace(result.Version, "x", "0", -1))
if err != nil {
return false, errors.Wrap(err, "failed to parse mssql db actual version")
}
constraints, err := version.NewConstraint(fmt.Sprintf("%s %s", operation, expected))
if err != nil {
return false, errors.Wrap(err, "failed to create constraint")
}
return constraints.Check(actual), nil
}
return false, nil
}
func analyzeMssql(analyzer *troubleshootv1beta2.DatabaseAnalyze, getCollectedFileContents func(string) ([]byte, error)) (*AnalyzeResult, error) {
collectorName := analyzer.CollectorName
if collectorName == "" {
collectorName = "mssql"
}
fullPath := path.Join("mssql", fmt.Sprintf("%s.json", collectorName))
collected, err := getCollectedFileContents(fullPath)
if err != nil {
return nil, errors.Wrapf(err, "failed to read collected file name: %s", fullPath)
}
databaseConnection := collect.DatabaseConnection{}
if err := json.Unmarshal(collected, &databaseConnection); err != nil {
return nil, errors.Wrap(err, "failed to unmarshal databased connection result")
}
title := analyzer.CheckName
if title == "" {
title = collectorName
}
result := &AnalyzeResult{
Title: title,
}
for _, outcome := range analyzer.Outcomes {
if outcome.Fail != nil {
if outcome.Fail.When == "" {
result.IsFail = true
result.Message = outcome.Fail.Message
result.URI = outcome.Fail.URI
return result, nil
}
isMatch, err := compareMssqlConditionalToActual(outcome.Fail.When, &databaseConnection)
if err != nil {
return result, errors.Wrap(err, "failed to compare MS SQL Server database conditional")
}
if isMatch {
if databaseConnection.Error != "" {
result.Message = outcome.Fail.Message + " " + databaseConnection.Error
} else {
result.Message = outcome.Fail.Message
}
result.IsFail = true
result.URI = outcome.Fail.URI
return result, nil
}
} else if outcome.Warn != nil {
if outcome.Warn.When == "" {
result.IsWarn = true
result.Message = outcome.Warn.Message
result.URI = outcome.Warn.URI
return result, nil
}
isMatch, err := compareMssqlConditionalToActual(outcome.Warn.When, &databaseConnection)
if err != nil {
return result, errors.Wrap(err, "failed to compare MS SQL Server database conditional")
}
if isMatch {
result.IsWarn = true
result.Message = outcome.Warn.Message
result.URI = outcome.Warn.URI
return result, nil
}
} else if outcome.Pass != nil {
if outcome.Pass.When == "" {
result.IsPass = true
result.Message = outcome.Pass.Message
result.URI = outcome.Pass.URI
return result, nil
}
isMatch, err := compareMssqlConditionalToActual(outcome.Pass.When, &databaseConnection)
if err != nil {
return result, errors.Wrap(err, "failed to compare MS SQL Server database conditional")
}
if isMatch {
result.IsPass = true
result.Message = outcome.Pass.Message
result.URI = outcome.Pass.URI
return result, nil
}
}
}
return result, nil
}