50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package zim
|
|
|
|
import "github.com/pkg/errors"
|
|
|
|
func (z *ZimReader) Favicon() (*Article, error) {
|
|
illustration, err := z.getMetadataIllustration()
|
|
if err != nil && !errors.Is(err, ErrNotFound) {
|
|
return nil, errors.WithStack(err)
|
|
}
|
|
|
|
if illustration != nil {
|
|
return illustration, nil
|
|
}
|
|
|
|
namespaces := []string{"-", "I"}
|
|
entryNames := []string{"favicon", "favicon.png"}
|
|
|
|
for _, ns := range namespaces {
|
|
for _, en := range entryNames {
|
|
article, err := z.GetPageNoIndex(ns + "/" + en)
|
|
if err != nil && !errors.Is(err, ErrNotFound) {
|
|
return nil, errors.WithStack(err)
|
|
}
|
|
|
|
if article != nil {
|
|
return article, nil
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil, errors.WithStack(ErrNotFound)
|
|
}
|
|
|
|
func (z *ZimReader) getMetadataIllustration() (*Article, error) {
|
|
metadata, err := z.Metadata(MetadataIllustration96x96at2, MetadataIllustration48x48at1)
|
|
if err != nil {
|
|
return nil, errors.WithStack(err)
|
|
}
|
|
|
|
if _, exists := metadata[MetadataIllustration96x96at2]; exists {
|
|
return z.GetPageNoIndex("M/" + string(MetadataIllustration96x96at2))
|
|
}
|
|
|
|
if _, exists := metadata[MetadataIllustration48x48at1]; exists {
|
|
return z.GetPageNoIndex("M/" + string(MetadataIllustration48x48at1))
|
|
}
|
|
|
|
return nil, errors.WithStack(ErrNotFound)
|
|
}
|