feat: fix link regexp bug

dns.go

@@ -97,7 +97,7 @@ func (d *DNSData) updateDNSRecord(contentRecord dao.TableRecordsInfo) (dao.Table
 			value := contentRecord.Value
 			// compatible with ipfs://xxx sia://xxx https://ipfs.io/ipfs/xxx
 			if contentRecord.Key == "skynet" || contentRecord.Key == "ipfs" {
-				re := regexp.MustCompile(`([0-9A-Za-z-]{46})`)
+				re := regexp.MustCompile(`([0-9A-Za-z-_]{46})`)
 				if results := re.FindStringSubmatch(value); len(results) == 2 {
 					value = results[1]
 				}

example/example_test.go

@@ -0,0 +1,21 @@
+package example
+
+import (
+	"fmt"
+	"regexp"
+	"testing"
+)
+
+func TestLink(t *testing.T) {
+	//value := "ipfs://PAIg0cuUJFfX7pBunqLLgQIaeTt8tEJtBIrPSzuxWkD3BA"
+	//value = "PAIg0cuUJFfX7pBunqLLgQIaeTt8tEJtBIrPSzuxWkD3BA"
+	//value = "https://siasky.net/PAIg0cuUJFfX7pBunqLLgQIaeTt8tEJtBIrPSzuxWkD3BA"
+	//value = "https://siasky.net/XAELj697T77MQOhB2XD-GGNY0bSel0xla9mS1p7L50bv6w"
+	value := "https://siasky.net/AAAEn_sRJSoC8N95In4b9E-n23C9udgTO-NkrrKGN4QDNg"
+	fmt.Println(len("AAAEn_sRJSoC8N95In4b9E-n23C9udgTO-NkrrKGN4QDNg"))
+	re := regexp.MustCompile(`([0-9A-Za-z-_]{46})`)
+	if results := re.FindStringSubmatch(value); len(results) == 2 {
+		value = results[1]
+	}
+	fmt.Println(value)
+}