func fetchTranslations(lang string) ([]byte, error) {
resp, err := http.Get(util.BaseURI() + "translations/" + lang + ".all.json")
if err != nil {
return []byte{}, err
}
content, err := ioutil.ReadAll(resp.Body)
if err != nil {
return []byte{}, err
}
return content, nil
}
// Body returns the card's body and iframe ID
func (c *Card) Body() (string, string, error) {
note, err := c.Note()
if err != nil {
return "", "", errors.Wrap(err, "Unable to retrieve Note")
}
model, err := note.Model()
if err != nil {
return "", "", errors.Wrap(err, "Unable to retrieve Model")
}
tmpl, err := model.GenerateTemplate()
if err != nil {
return "", "", errors.Wrap(err, "Error generating template")
}
ctx := cardContext{
IframeID: RandString(8),
Card: c,
Note: note,
Model: model,
BaseURI: util.BaseURI(),
Fields: make(map[string]template.HTML),
}
for i, f := range model.Fields {
switch note.FieldValues[i].Type() {
case fb.AnkiField, fb.TextField:
text, e := note.FieldValues[i].Text()
if e != nil {
return "", "", errors.Wrap(e, "Unable to fetch text for field value")
}
ctx.Fields[f.Name] = template.HTML(text)
}
}
htmlDoc := new(bytes.Buffer)
if e := tmpl.Execute(htmlDoc, ctx); e != nil {
return "", "", errors.Wrap(e, "Unable to execute template")
}
doc, err := html.Parse(htmlDoc)
if err != nil {
return "", "", errors.Wrap(err, "Unable to parse generated HTML")
}
body := findBody(doc)
if body == nil {
return "", "", errors.New("No <body> in the template output")
}
log.Debugf("%s", htmlDoc)
container := findContainer(body.FirstChild, strconv.Itoa(int(c.TemplateID())), "question")
if container == nil {
return "", "", errors.Errorf("No div matching '%d' found in template output", c.TemplateID())
}
log.Debug("Found container: %s", container)
// Delete unused divs
for c := body.FirstChild; c != nil; c = body.FirstChild {
body.RemoveChild(c)
}
inner := container.FirstChild
inner.Parent = body
body.FirstChild = inner
if err := c.inlineSrc(body); err != nil {
return "", "", errors.Wrap(err, "Error inlining images")
}
newBody := new(bytes.Buffer)
if err := html.Render(newBody, doc); err != nil {
return "", "", errors.Wrap(err, "Error rendering new HTML")
}
nbString := newBody.String()
log.Debugf("original size = %d\n", len(htmlDoc.String()))
log.Debugf("new body size = %d\n", len(nbString))
return nbString, ctx.IframeID, nil
}