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Add regexp template tag validation

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This commit is contained in:
Kailash Nadh 2018-11-26 17:36:05 +05:30
parent a7614ebfe8
commit 8a952c137b
2 changed files with 8 additions and 4 deletions
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2
models/models.go
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@ -208,7 +208,7 @@ func (s SubscriberAttribs) Scan(src interface{}) error {
} }
// CompileTemplate compiles a campaign body template into its base // CompileTemplate compiles a campaign body template into its base
// template and sets the resultant template to Campaign.Tpl // template and sets the resultant template to Campaign.Tpl.
func (c *Campaign) CompileTemplate(f template.FuncMap) error { func (c *Campaign) CompileTemplate(f template.FuncMap) error {
// Compile the base template. // Compile the base template.
t := regexpLinkTag.ReplaceAllString(c.TemplateBody, regexpLinkTagReplace) t := regexpLinkTag.ReplaceAllString(c.TemplateBody, regexpLinkTagReplace)

10
templates.go
View file

@ -5,8 +5,8 @@ import (
"errors" "errors"
"fmt" "fmt"
"net/http" "net/http"
"regexp"
"strconv" "strconv"
"strings"
"github.com/asaskevich/govalidator" "github.com/asaskevich/govalidator"
"github.com/knadh/listmonk/models" "github.com/knadh/listmonk/models"
@ -32,6 +32,10 @@ type dummyMessage struct {
UnsubscribeURL string UnsubscribeURL string
} }
var (
regexpTplTag = regexp.MustCompile(`{{(\s+)?template\s+?"content"(\s+)?\.(\s+)?}}`)
)
// handleGetTemplates handles retrieval of templates. // handleGetTemplates handles retrieval of templates.
func handleGetTemplates(c echo.Context) error { func handleGetTemplates(c echo.Context) error {
var ( var (
@ -76,7 +80,7 @@ func handlePreviewTemplate(c echo.Context) error {
) )
if body != "" { if body != "" {
if strings.Count(body, tplTag) != 1 { if !regexpTplTag.MatchString(body) {
return echo.NewHTTPError(http.StatusBadRequest, return echo.NewHTTPError(http.StatusBadRequest,
fmt.Sprintf("Template body should contain the %s placeholder exactly once", tplTag)) fmt.Sprintf("Template body should contain the %s placeholder exactly once", tplTag))
} }
@ -243,7 +247,7 @@ func validateTemplate(o models.Template) error {
return errors.New("invalid length for `name`") return errors.New("invalid length for `name`")
} }
if strings.Count(o.Body, tplTag) != 1 { if !regexpTplTag.MatchString(o.Body) {
return fmt.Errorf("template body should contain the %s placeholder exactly once", tplTag) return fmt.Errorf("template body should contain the %s placeholder exactly once", tplTag)
} }