import transactions from camt.053 file

pkg/converters/camt/camt_data_reader.go

@@ -0,0 +1,42 @@
+package camt
+
+import (
+	"bytes"
+	"encoding/xml"
+
+	"golang.org/x/net/html/charset"
+
+	"github.com/mayswind/ezbookkeeping/pkg/core"
+	"github.com/mayswind/ezbookkeeping/pkg/errs"
+)
+
+// camt053FileReader defines the structure of camt.053 file reader
+type camt053FileReader struct {
+	xmlDecoder *xml.Decoder
+}
+
+// read returns the imported camt.053 data
+func (r *camt053FileReader) read(ctx core.Context) (*camt053File, error) {
+	file := &camt053File{}
+
+	err := r.xmlDecoder.Decode(&file)
+
+	if err != nil {
+		return nil, err
+	}
+
+	return file, nil
+}
+
+func createNewCamt053FileReader(data []byte) (*camt053FileReader, error) {
+	if len(data) > 5 && data[0] == 0x3C && data[1] == 0x3F && data[2] == 0x78 && data[3] == 0x6D && data[4] == 0x6C { // <?xml
+		xmlDecoder := xml.NewDecoder(bytes.NewReader(data))
+		xmlDecoder.CharsetReader = charset.NewReaderLabel
+
+		return &camt053FileReader{
+			xmlDecoder: xmlDecoder,
+		}, nil
+	}
+
+	return nil, errs.ErrInvalidXmlFile
+}