added parser configuration for (for now exclusively) filtering fields from route parses

bird/config.go

@@ -15,6 +15,10 @@ type BirdConfig struct {
 	BirdCmd        string `toml:"birdc"`
 }
 
+type ParserConfig struct {
+	FilterFields []string `toml:"filter_fields"`
+}
+
 type RateLimitConfig struct {
 	Reqs    int
 	Max     int `toml:"requests_per_minute"`

bird/parser.go

@@ -6,8 +6,19 @@ import (
 	"strings"
 )
 
+var ParserConf ParserConfig
+
 type Parsed map[string]interface{}
 
+func dirtyContains(l []string, e string) bool {
+	for _, c := range l {
+		if c == e {
+			return true
+		}
+	}
+	return false
+}
+
 func emptyLine(line string) bool {
 	return len(strings.TrimSpace(line)) == 0
 }
@@ -117,6 +128,13 @@ func mainRouteDetail(groups []string, route Parsed) Parsed {
 	route["learnt_from"] = groups[6]
 	route["primary"] = groups[7] == "*"
 	route["metric"] = parseInt(groups[8])
+
+	for k, _ := range route {
+		if !dirtyContains(ParserConf.FilterFields, k) {
+			route[k] = nil
+		}
+	}
+
 	return route
 }
 

birdwatcher.go

@@ -125,6 +125,7 @@ func main() {
 	bird.ClientConf = birdConf
 	bird.StatusConf = conf.Status
 	bird.RateLimitConf.Conf = conf.Ratelimit
+	bird.ParserConf = conf.Parser
 	endpoints.Conf = conf.Server
 
 	// Make server

config.go

@@ -19,6 +19,7 @@ type Config struct {
 	Status    bird.StatusConfig
 	Bird      bird.BirdConfig
 	Bird6     bird.BirdConfig
+	Parser    bird.ParserConfig
 }
 
 // Try to load configfiles as specified in the files

etc/ecix/birdwatcher.conf

@@ -50,4 +50,6 @@ listen = "0.0.0.0:29189"
 config = "/etc/bird6.conf"
 birdc  = "birdc6"
 
-
+[parser]
+# Remove fields e.g. interface
+filter_fields = []