Attribute extractor added. HTML extractor added. Outer HTML Extractor added.

exporter package renamed to export, extractor package renamed to extract for simplicity.

export/csv.go

@@ -0,0 +1,58 @@
+package export
+
+import (
+	"encoding/csv"
+	"fmt"
+	"github.com/geziyor/geziyor/internal"
+	"log"
+	"os"
+	"reflect"
+	"sort"
+)
+
+// CSV exports response data as CSV streaming file
+type CSV struct {
+	FileName string
+	Comma    rune
+	UseCRLF  bool
+}
+
+// Export exports response data as CSV streaming file
+func (e *CSV) Export(exports chan interface{}) {
+
+	// Create or append file
+	file, err := os.OpenFile(internal.PreferFirst(e.FileName, "out.csv"), os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
+	if err != nil {
+		log.Printf("Output file creation error: %v\n", err)
+		return
+	}
+	defer file.Close()
+
+	writer := csv.NewWriter(file)
+	writer.Comma = internal.PreferFirstRune(e.Comma, ',')
+	writer.UseCRLF = e.UseCRLF
+
+	// Export data as responses came
+	for res := range exports {
+		var values []string
+
+		// Detect type and extract CSV values
+		val := reflect.ValueOf(res)
+		switch val.Kind() {
+		case reflect.Slice:
+			for i := 0; i < val.Len(); i++ {
+				values = append(values, fmt.Sprint(val.Index(i)))
+			}
+		case reflect.Map:
+			iter := val.MapRange()
+			for iter.Next() {
+				values = append(values, fmt.Sprint(iter.Value()))
+			}
+			sort.Strings(values)
+		}
+		if err := writer.Write(values); err != nil {
+			log.Printf("CSV writing error on exporter: %v\n", err)
+		}
+	}
+	writer.Flush()
+}