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provisioning_templates.go
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/
provisioning_templates.go
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package definitions
import (
"fmt"
"html/template"
"regexp"
"strings"
"github.com/grafana/grafana/pkg/services/ngalert/models"
)
// swagger:route GET /api/provisioning/templates provisioning RouteGetTemplates
//
// Get all message templates.
//
// Responses:
// 200: []MessageTemplate
// 400: ValidationError
// swagger:route GET /api/provisioning/templates/{name} provisioning RouteGetTemplate
//
// Get a message template.
//
// Responses:
// 200: MessageTemplate
// 404: NotFound
// swagger:route PUT /api/provisioning/templates/{name} provisioning RoutePutTemplate
//
// Updates an existing template.
//
// Consumes:
// - application/json
//
// Responses:
// 202: Accepted
// 400: ValidationError
// swagger:route DELETE /api/provisioning/templates/{name} provisioning RouteDeleteTemplate
//
// Delete a template.
//
// Responses:
// 204: Accepted
type MessageTemplate struct {
Name string
Template string
Provenance models.Provenance `json:"provenance,omitempty"`
}
type MessageTemplateContent struct {
Template string
}
// swagger:parameters RoutePutTemplate
type MessageTemplatePayload struct {
// in:body
Body MessageTemplateContent
}
func (t *MessageTemplate) ResourceType() string {
return "template"
}
func (t *MessageTemplate) ResourceID() string {
return t.Name
}
func (t *MessageTemplate) Validate() error {
if t.Name == "" {
return fmt.Errorf("template must have a name")
}
if t.Template == "" {
return fmt.Errorf("template must have content")
}
_, err := template.New("").Parse(t.Template)
if err != nil {
return fmt.Errorf("invalid template: %w", err)
}
content := strings.TrimSpace(t.Template)
found, err := regexp.MatchString(`\{\{\s*define`, content)
if err != nil {
return fmt.Errorf("failed to match regex: %w", err)
}
if !found {
lines := strings.Split(content, "\n")
for i, s := range lines {
lines[i] = " " + s
}
content = strings.Join(lines, "\n")
content = fmt.Sprintf("{{ define \"%s\" }}\n%s\n{{ end }}", t.Name, content)
}
t.Template = content
return nil
}