don't remember what this does lol

Makefile

@@ -3,15 +3,17 @@ all: install
 clean:
 	rm -rf gohookr
 
-install:
-	go mod tidy
-	go build -o gohookr
+install: build
 	cp gohookr /usr/local/bin/
 	cp gohookr.service /usr/lib/systemd/system/
 	cp -n config.json /etc/gohookr.json
 	systemctl daemon-reload
 	systemctl enable --now gohookr
 
+build:
+	go mod tidy
+	go build -o gohookr
+
 uninstall:
 	systemctl disable --now gohookr
 	rm -rf /usr/local/bin/gohookr /usr/lib/systemd/system/gohookr.service

config.yml

@@ -0,0 +1,13 @@
+listenaddress: 127.0.0.1:8654
+services:
+  test:
+    script:
+      program: "echo"
+      arguments: 
+        - test
+    tests:
+      - program: ./example.sh
+        appendpayload: true
+    disablesignatureverification: false
+    signatureheader: test
+    secret: thisisasecret

config/config.go

@@ -1,5 +1,12 @@
 package config
 
+import (
+	"encoding/json"
+	"io/ioutil"
+
+	"gopkg.in/yaml.v3"
+)
+
 // The struct that represents the config.json file
 type Config struct {
 	ListenAddress string
@@ -33,3 +40,23 @@ func (c Config) Validate() error {
 
 	return nil
 }
+
+func (c *Config) Load(config_filename string) error {
+
+	raw_config, err := ioutil.ReadFile(config_filename)
+	if err != nil {
+		return err
+	}
+
+	err = json.Unmarshal(raw_config, &c)
+	if err == nil {
+		return c.Validate()
+	}
+
+	err = yaml.Unmarshal(raw_config, &c)
+	if err == nil {
+		return c.Validate()
+	}
+
+	return err
+}

go.mod

@@ -2,4 +2,7 @@ module git.alv.cx/alvierahman90/gohookr
 
 go 1.16
 
-require github.com/gorilla/mux v1.8.0
+require (
+	github.com/gorilla/mux v1.8.0
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
+)

go.sum

@@ -1,2 +1,6 @@
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -4,7 +4,6 @@ import (
 	"crypto/hmac"
 	"crypto/sha256"
 	"encoding/hex"
-	"encoding/json"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -18,9 +17,10 @@ import (
 
 var config_filename = "/etc/gohookr.json"
 var checkSignature = true
-var c config.Config
 
 func main() {
+	var c config.Config
+
 	r := mux.NewRouter()
 	r.HandleFunc("/webhooks/{service}", webhookHandler)
 
@@ -32,23 +32,28 @@ func main() {
 		checkSignature = p != "true"
 	}
 
-	raw_config, err := ioutil.ReadFile(config_filename)
+	var err = c.Load(config_filename)
 	if err != nil {
 		panic(err.Error())
 	}
+	fmt.Printf("CONFIG OK: %s\n", config_filename)
+	fmt.Printf("LISTENING AT: %s\n", c.ListenAddress)
 
-	if err := json.Unmarshal(raw_config, &c); err != nil {
-		panic(err.Error())
+	for _, v := range os.Args {
+		if v == "checkConfig" {
+			return
 		}
-
-	if err := c.Validate(); err != nil {
-		panic(err.Error())
 	}
 
 	log.Fatal(http.ListenAndServe(c.ListenAddress, r))
 }
 
 func webhookHandler(w http.ResponseWriter, r *http.Request) {
+	var c config.Config
+	var err = c.Load(config_filename)
+	if err != nil {
+		writeResponse(w, 500, "Unable to read config file")
+	}
 	// Check what service is specified in URL (/webhooks/{service}) and if it exists
 	serviceName := string(mux.Vars(r)["service"])
 	service, ok := c.Services[serviceName]
@@ -85,7 +90,7 @@ func webhookHandler(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// Run tests and script as goroutine to prevent timing out
-	go func(){
+	go func() {
 		// Run tests, immediately stop if one fails
 		for _, test := range service.Tests {
 			if _, err := test.Execute(payload); err != nil {

readme.md

@@ -15,10 +15,17 @@ make
 Default config path is `/etc/gohookr.json`.
 It can be overriden by setting environment variable `CONFIG`.
 
+The config file will be re-read every request so service configs can be changed without restarting
+the service (unless you want to change the listening port).
+
 Check below for an example configuration, which should tell you most of the things you need to know
 to configure gohookr.
 
-Currently gohookr must be restarted after config changes.
+You can test your config file by running
+
+```
+gohookr checkConfig
+```
 
 ### Signature Verification
 
@@ -32,7 +39,8 @@ For GitHub it would be `sha256=`.
 
 #### Disable Signature Verification
 
-You can disable signature verification by setting `DisableSignatureVerification` for a service to `true`.
+You can disable signature verification by setting `DisableSignatureVerification` for a service to
+`true`.
 
 You can disable signature verification for all services by setting environment variable
 `NO_SIGNATURE_VERIFICATION` to `true`.