147 lines
4.3 KiB
Go
147 lines
4.3 KiB
Go
package authmethod
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"github.com/hashicorp/consul/api"
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)
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const (
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PrettyFormat string = "pretty"
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JSONFormat string = "json"
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)
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// Formatter defines methods provided by authmethod command output formatter
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type Formatter interface {
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FormatAuthMethod(method *api.ACLAuthMethod) (string, error)
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FormatAuthMethodList(methods []*api.ACLAuthMethodListEntry) (string, error)
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}
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// GetSupportedFormats returns supported formats
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func GetSupportedFormats() []string {
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return []string{PrettyFormat, JSONFormat}
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}
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// NewFormatter returns Formatter implementation
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func NewFormatter(format string, showMeta bool) (formatter Formatter, err error) {
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switch format {
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case PrettyFormat:
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formatter = newPrettyFormatter(showMeta)
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case JSONFormat:
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formatter = newJSONFormatter(showMeta)
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default:
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err = fmt.Errorf("Unknown format: %s", format)
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}
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return formatter, err
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}
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func newPrettyFormatter(showMeta bool) Formatter {
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return &prettyFormatter{showMeta}
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}
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type prettyFormatter struct {
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showMeta bool
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}
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func (f *prettyFormatter) FormatAuthMethod(method *api.ACLAuthMethod) (string, error) {
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var buffer bytes.Buffer
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buffer.WriteString(fmt.Sprintf("Name: %s\n", method.Name))
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buffer.WriteString(fmt.Sprintf("Type: %s\n", method.Type))
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if method.Partition != "" {
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buffer.WriteString(fmt.Sprintf("Partition: %s\n", method.Partition))
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}
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if method.Namespace != "" {
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buffer.WriteString(fmt.Sprintf("Namespace: %s\n", method.Namespace))
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}
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if method.DisplayName != "" {
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buffer.WriteString(fmt.Sprintf("DisplayName: %s\n", method.DisplayName))
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}
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buffer.WriteString(fmt.Sprintf("Description: %s\n", method.Description))
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if method.MaxTokenTTL > 0 {
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buffer.WriteString(fmt.Sprintf("MaxTokenTTL: %s\n", method.MaxTokenTTL))
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}
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if method.TokenLocality != "" {
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buffer.WriteString(fmt.Sprintf("TokenLocality: %s\n", method.TokenLocality))
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}
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if len(method.NamespaceRules) > 0 {
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buffer.WriteString(fmt.Sprintln("NamespaceRules:"))
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for _, rule := range method.NamespaceRules {
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buffer.WriteString(fmt.Sprintf(" Selector: %s\n", rule.Selector))
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buffer.WriteString(fmt.Sprintf(" BindNamespace: %s\n", rule.BindNamespace))
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}
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}
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if f.showMeta {
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buffer.WriteString(fmt.Sprintf("Create Index: %d\n", method.CreateIndex))
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buffer.WriteString(fmt.Sprintf("Modify Index: %d\n", method.ModifyIndex))
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}
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buffer.WriteString(fmt.Sprintln("Config:"))
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output, err := json.MarshalIndent(method.Config, "", " ")
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if err != nil {
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return "", fmt.Errorf("Error formatting auth method configuration: %s", err)
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}
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buffer.Write(output)
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return buffer.String(), nil
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}
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func (f *prettyFormatter) FormatAuthMethodList(methods []*api.ACLAuthMethodListEntry) (string, error) {
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var buffer bytes.Buffer
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for _, method := range methods {
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buffer.WriteString(f.formatAuthMethodListEntry(method))
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}
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return buffer.String(), nil
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}
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func (f *prettyFormatter) formatAuthMethodListEntry(method *api.ACLAuthMethodListEntry) string {
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var buffer bytes.Buffer
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buffer.WriteString(fmt.Sprintf("%s:\n", method.Name))
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buffer.WriteString(fmt.Sprintf(" Type: %s\n", method.Type))
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if method.Partition != "" {
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buffer.WriteString(fmt.Sprintf(" Partition: %s\n", method.Partition))
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}
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if method.Namespace != "" {
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buffer.WriteString(fmt.Sprintf(" Namespace: %s\n", method.Namespace))
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}
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if method.DisplayName != "" {
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buffer.WriteString(fmt.Sprintf(" DisplayName: %s\n", method.DisplayName))
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}
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buffer.WriteString(fmt.Sprintf(" Description: %s\n", method.Description))
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if f.showMeta {
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buffer.WriteString(fmt.Sprintf(" Create Index: %d\n", method.CreateIndex))
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buffer.WriteString(fmt.Sprintf(" Modify Index: %d\n", method.ModifyIndex))
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}
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return buffer.String()
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}
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func newJSONFormatter(showMeta bool) Formatter {
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return &jsonFormatter{showMeta}
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}
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type jsonFormatter struct {
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showMeta bool
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}
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func (f *jsonFormatter) FormatAuthMethod(method *api.ACLAuthMethod) (string, error) {
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b, err := json.MarshalIndent(method, "", " ")
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if err != nil {
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return "", fmt.Errorf("Failed to marshal authmethod:, %v", err)
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}
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return string(b), nil
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}
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func (f *jsonFormatter) FormatAuthMethodList(methods []*api.ACLAuthMethodListEntry) (string, error) {
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b, err := json.MarshalIndent(methods, "", " ")
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if err != nil {
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return "", fmt.Errorf("Failed to marshal authmethods:, %v", err)
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}
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return string(b), nil
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}
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