74 lines
2.0 KiB
Go
74 lines
2.0 KiB
Go
package filter
|
|
|
|
import (
|
|
"io/ioutil"
|
|
"path"
|
|
"strings"
|
|
|
|
"gitbase.de/apairon/mark2web"
|
|
"gitbase.de/apairon/mark2web/helper"
|
|
"github.com/ddliu/motto"
|
|
"github.com/flosch/pongo2"
|
|
_ "github.com/robertkrimen/otto/underscore"
|
|
)
|
|
|
|
// RegisterFilters reads a directory and register filters from files within it
|
|
func RegisterFilters(dir string) {
|
|
files, err := ioutil.ReadDir(dir)
|
|
if err != nil {
|
|
helper.Log.Panicf("could not read from template filters dir '%s': %s", dir, err)
|
|
}
|
|
for _, f := range files {
|
|
if !f.IsDir() {
|
|
switch path.Ext(f.Name()) {
|
|
case ".js":
|
|
fileBase := strings.TrimSuffix(f.Name(), ".js")
|
|
jsFile := dir + "/" + f.Name()
|
|
helper.Log.Debugf("trying to register filter from: %s", jsFile)
|
|
/*
|
|
jsStr, err := ioutil.ReadFile(jsFile)
|
|
if err != nil {
|
|
Log.Panicf("could not read '%s': %s", jsFile, err)
|
|
}
|
|
*/
|
|
vm := motto.New()
|
|
fn, err := vm.Run(jsFile)
|
|
if err != nil {
|
|
helper.Log.Panicf("error in javascript vm for '%s': %s", jsFile, err)
|
|
}
|
|
if !fn.IsFunction() {
|
|
helper.Log.Panicf("%s does not contain a function code", jsFile)
|
|
}
|
|
|
|
err = pongo2.RegisterFilter(
|
|
fileBase,
|
|
func(in, param *pongo2.Value) (out *pongo2.Value, erro *pongo2.Error) {
|
|
thisObj, _ := vm.Object("({})")
|
|
if mark2web.CurrentContext != nil {
|
|
thisObj.Set("context", *mark2web.CurrentContext)
|
|
}
|
|
|
|
if err != nil {
|
|
helper.Log.Panicf("could not set context as in '%s': %s", jsFile, err)
|
|
}
|
|
ret, err := fn.Call(thisObj.Value(), in.Interface(), param.Interface())
|
|
if err != nil {
|
|
helper.Log.Panicf("error in javascript file '%s' while calling returned function: %s", jsFile, err)
|
|
}
|
|
retGo, err := ret.Export()
|
|
if err != nil {
|
|
helper.Log.Panicf("export error for '%s': %s", jsFile, err)
|
|
}
|
|
return pongo2.AsValue(retGo), nil
|
|
},
|
|
)
|
|
if err != nil {
|
|
helper.Log.Panicf("could not register filter from '%s': %s", jsFile, err)
|
|
}
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|