frontend: refactor summary table parsing

frontend/api_test.go

@@ -73,13 +73,14 @@ func TestApiSummaryHandler(t *testing.T) {
 
 	summary := response.Result[0].(*apiSummaryResultPair)
 	assert.Equal(t, summary.Server, "alpha")
+	assert.Equal(t, len(summary.Data), 7)
 	// Protocol list will be sorted
-	assert.Equal(t, summary.Data[1].Name, "device1")
+	assert.Equal(t, summary.Data[0].Name, "device1")
-	assert.Equal(t, summary.Data[1].Proto, "Device")
+	assert.Equal(t, summary.Data[0].Proto, "Device")
-	assert.Equal(t, summary.Data[1].Table, "---")
+	assert.Equal(t, summary.Data[0].Table, "---")
-	assert.Equal(t, summary.Data[1].State, "up")
+	assert.Equal(t, summary.Data[0].State, "up")
-	assert.Equal(t, summary.Data[1].Since, "2021-08-27")
+	assert.Equal(t, summary.Data[0].Since, "2021-08-27")
-	assert.Equal(t, summary.Data[1].Info, "")
+	assert.Equal(t, summary.Data[0].Info, "")
 }
 
 func TestApiSummaryHandlerError(t *testing.T) {

frontend/render.go

@@ -35,15 +35,6 @@ var optionsMap = map[string]string{
 	"traceroute":                       "traceroute ...",
 }
 
-// pre-compiled regexp and constant statemap for summary rendering
-var splitSummaryLine = regexp.MustCompile(`(\w+)(\s+)(\w+)(\s+)([\w-]+)(\s+)(\w+)(\s+)([0-9\-\. :]+)(.*)`)
-var summaryStateMap = map[string]string{
-	"up":      "success",
-	"down":    "secondary",
-	"start":   "danger",
-	"passive": "info",
-}
-
 // render the page template
 func renderPageTemplate(w http.ResponseWriter, r *http.Request, title string, content template.HTML) {
 	path := r.URL.Path[1:]
@@ -143,63 +134,23 @@ func summaryParse(data string, serverName string) (TemplateSummary, error) {
 
 	// parse each line
 	for _, line := range rows {
-
+		row := SummaryRowDataFromLine(line)
-		// Ignore empty lines
+		if row == nil {
-		line = strings.TrimSpace(line)
-		if len(line) == 0 {
 			continue
 		}
 
-		// Parse a total of 6 columns from bird summary
+		// Filter row name
-		lineSplitted := splitSummaryLine.FindStringSubmatch(line)
+		if setting.nameFilter != "" && nameFilterRegexp.MatchString(row.Name) {
-		if lineSplitted == nil {
 			continue
 		}
 
-		var row SummaryRowData
+		// Filter away unwanted protocol types, if setting.protocolFilter is non-empty
-
+		if len(setting.protocolFilter) > 0 && !row.ProtocolMatches(setting.protocolFilter) {
-		if len(lineSplitted) >= 2 {
+			continue
-			row.Name = strings.TrimSpace(lineSplitted[1])
-			if setting.nameFilter != "" && nameFilterRegexp.MatchString(row.Name) {
-				continue
-			}
-		}
-		if len(lineSplitted) >= 4 {
-			row.Proto = strings.TrimSpace(lineSplitted[3])
-			// Filter away unwanted protocol types, if setting.protocolFilter is non-empty
-			found := false
-			for _, protocol := range setting.protocolFilter {
-				if strings.EqualFold(row.Proto, protocol) {
-					found = true
-					break
-				}
-			}
-
-			if len(setting.protocolFilter) > 0 && !found {
-				continue
-			}
-		}
-		if len(lineSplitted) >= 6 {
-			row.Table = strings.TrimSpace(lineSplitted[5])
-		}
-		if len(lineSplitted) >= 8 {
-			row.State = strings.TrimSpace(lineSplitted[7])
-			row.MappedState = summaryStateMap[row.State]
-		}
-		if len(lineSplitted) >= 10 {
-			row.Since = strings.TrimSpace(lineSplitted[9])
-		}
-		if len(lineSplitted) >= 11 {
-			row.Info = strings.TrimSpace(lineSplitted[10])
-		}
-
-		// Dynamic BGP session, show without any color
-		if strings.Contains(row.Info, "Passive") {
-			row.MappedState = summaryStateMap["passive"]
 		}
 
 		// add to the result
-		args.Rows = append(args.Rows, row)
+		args.Rows = append(args.Rows, *row)
 	}
 
 	return args, nil

frontend/render_test.go

@@ -8,8 +8,7 @@ import (
 	"testing"
 )
 
-const BirdSummaryData = `BIRD 2.0.8 ready.
+const BirdSummaryData = `Name       Proto      Table      State  Since         Info
-Name       Proto      Table      State  Since         Info
 static1    Static     master4    up     2021-08-27
 static2    Static     master6    up     2021-08-27
 device1    Device     ---        up     2021-08-27

frontend/template.go

@@ -3,11 +3,13 @@ package main
 import (
 	"embed"
 	"html/template"
-        "net/url"
+	"net/url"
+	"regexp"
 	"strings"
 )
 
 // import templates and other assets
+//
 //go:embed assets
 var assets embed.FS
 
@@ -64,6 +66,47 @@ func (r SummaryRowData) NameContains(prefix string) bool {
 	return strings.Contains(r.Name, prefix)
 }
 
+func (r SummaryRowData) ProtocolMatches(protocols []string) bool {
+	for _, protocol := range protocols {
+		if strings.EqualFold(r.Proto, protocol) {
+			return true
+		}
+	}
+	return false
+}
+
+// pre-compiled regexp and constant statemap for summary rendering
+var splitSummaryLine = regexp.MustCompile(`(\w+)\s+(\w+)\s+([\w-]+)\s+(\w+)\s+([0-9\-\. :]+)(.*)`)
+var summaryStateMap = map[string]string{
+	"up":      "success",
+	"down":    "secondary",
+	"start":   "danger",
+	"passive": "info",
+}
+
+func SummaryRowDataFromLine(line string) *SummaryRowData {
+	lineSplitted := splitSummaryLine.FindStringSubmatch(line)
+	if lineSplitted == nil {
+		return nil
+	}
+
+	var row SummaryRowData
+	row.Name = strings.TrimSpace(lineSplitted[1])
+	row.Proto = strings.TrimSpace(lineSplitted[2])
+	row.Table = strings.TrimSpace(lineSplitted[3])
+	row.State = strings.TrimSpace(lineSplitted[4])
+	row.Since = strings.TrimSpace(lineSplitted[5])
+	row.Info = strings.TrimSpace(lineSplitted[6])
+
+	if strings.Contains(row.Info, "Passive") {
+		row.MappedState = summaryStateMap["passive"]
+	} else {
+		row.MappedState = summaryStateMap[row.State]
+	}
+
+	return &row
+}
+
 type TemplateSummary struct {
 	ServerName string
 	Raw        string
@@ -108,7 +151,7 @@ var requiredTemplates = [...]string{
 // define functions to be made available in templates
 
 var funcMap = template.FuncMap{
-        "pathescape": url.PathEscape,
+	"pathescape": url.PathEscape,
 }
 
 // import templates from embedded assets

frontend/template_test.go

@@ -23,3 +23,56 @@ func TestSummaryRowDataNameContains(t *testing.T) {
 	assert.Equal(t, data.NameContains("oc"), true)
 	assert.Equal(t, data.NameContains("no"), false)
 }
+
+func TestSummaryRowDataFromLine(t *testing.T) {
+	data := SummaryRowDataFromLine("sys_device Device     ---        up     2025-06-27 21:23:08")
+
+	assert.Equal(t, data.Name, "sys_device")
+	assert.Equal(t, data.Proto, "Device")
+	assert.Equal(t, data.Table, "---")
+	assert.Equal(t, data.State, "up")
+	assert.Equal(t, data.Since, "2025-06-27 21:23:08")
+}
+
+func TestSummaryRowDataFromLineNumeric(t *testing.T) {
+	data := SummaryRowDataFromLine("12345 Device     ---        up     2025-06-27 21:23:08")
+
+	assert.Equal(t, data.Name, "12345")
+	assert.Equal(t, data.Proto, "Device")
+	assert.Equal(t, data.Table, "---")
+	assert.Equal(t, data.State, "up")
+	assert.Equal(t, data.Since, "2025-06-27 21:23:08")
+}
+
+func TestSummaryRowDataFromLinePipe(t *testing.T) {
+	data := SummaryRowDataFromLine("pipe Pipe       ---        up     2025-06-27 21:23:08  master4 <=> pipe_v4")
+
+	assert.Equal(t, data.Name, "pipe")
+	assert.Equal(t, data.Proto, "Pipe")
+	assert.Equal(t, data.Table, "---")
+	assert.Equal(t, data.State, "up")
+	assert.Equal(t, data.Since, "2025-06-27 21:23:08")
+	assert.Equal(t, data.Info, "master4 <=> pipe_v4")
+}
+
+func TestSummaryRowDataFromLineBGP(t *testing.T) {
+	data := SummaryRowDataFromLine("bgp BGP        ---        up     2025-06-30 20:45:33  Established")
+
+	assert.Equal(t, data.Name, "bgp")
+	assert.Equal(t, data.Proto, "BGP")
+	assert.Equal(t, data.Table, "---")
+	assert.Equal(t, data.State, "up")
+	assert.Equal(t, data.Since, "2025-06-30 20:45:33")
+	assert.Equal(t, data.Info, "Established")
+}
+
+func TestSummaryRowDataFromLineBGPPassive(t *testing.T) {
+	data := SummaryRowDataFromLine("passive   BGP        ---        start  2025-06-27 21:23:08  Passive")
+
+	assert.Equal(t, data.Name, "passive")
+	assert.Equal(t, data.Proto, "BGP")
+	assert.Equal(t, data.Table, "---")
+	assert.Equal(t, data.State, "start")
+	assert.Equal(t, data.Since, "2025-06-27 21:23:08")
+	assert.Equal(t, data.Info, "Passive")
+}