Allow providing multiple BeforeScript and AfterScript

Summary:

Previsouly this code would allow only a single script to run:

```
	r.Get("/swagger/*", httpSwagger.Handler(
		httpSwagger.BeforeScript("console.log('before 1')"),
		httpSwagger.BeforeScript("console.log('before 2')"),
		httpSwagger.URL("http://localhost:1323/swagger/doc.json"), //The url pointing to API definition
	))

	// Only 'before 2' will be printed
```

Now both scripts are run:

```
'before 1'
'before 2'
```

This improves behavior of BeforeScript and AfterScript. If users
want to provide multiple scripts, they are forced to combine them using
strings.

Closes #81

Test Plan: Updated existing example and tests. Added new test TestMultipleScripts

example/go-chi/go.mod

@@ -6,6 +6,6 @@ require (
 	github.com/go-chi/chi v4.1.2+incompatible
 	github.com/swaggo/http-swagger v1.2.6
 	github.com/swaggo/swag v1.8.1
-	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 // indirect
-	golang.org/x/tools v0.1.10 // indirect
 )
+
+replace github.com/swaggo/http-swagger => ../..

example/go-chi/go.sum

@@ -1,9 +1,7 @@
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc=
 github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
-github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/agiledragon/gomonkey/v2 v2.3.1 h1:k+UnUY0EMNYUFUAQVETGY9uUTxjMdnUkP0ARyJS1zzs=
 github.com/agiledragon/gomonkey/v2 v2.3.1/go.mod h1:ap1AmDzcVOAz1YpeJ3TCzIgstoaWLA6jbbgxfB4w2iY=
@@ -18,10 +16,12 @@ github.com/go-chi/chi v4.1.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxm
 github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
 github.com/go-openapi/jsonpointer v0.19.5 h1:gZr+CIYByUqjcgeLXnQu2gHYQC9o73G2XUeOFYEICuY=
 github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
-github.com/go-openapi/jsonreference v0.19.6 h1:UBIxjkht+AWIgYzCDSv2GN+E/togfwXUJFRTWhl2Jjs=
 github.com/go-openapi/jsonreference v0.19.6/go.mod h1:diGHMEHg2IqXZGKxqyvWdfWU/aim5Dprw5bqpKkTvns=
-github.com/go-openapi/spec v0.20.4 h1:O8hJrt0UMnhHcluhIdUgCLRWyM2x7QkBXRvOs7m+O1M=
+github.com/go-openapi/jsonreference v0.20.0 h1:MYlu0sBgChmCfJxxUKZ8g1cPWFOB37YSZqewK7OKeyA=
+github.com/go-openapi/jsonreference v0.20.0/go.mod h1:Ag74Ico3lPc+zR+qjn4XBUmXymS4zJbYVCZmcgkasdo=
 github.com/go-openapi/spec v0.20.4/go.mod h1:faYFR1CvsJZ0mNsmsphTMSoRrNV3TEDoAM7FOEWeq8I=
+github.com/go-openapi/spec v0.20.6 h1:ich1RQ3WDbfoeTqTAb+5EIxNmpKVJZWBNah9RAT0jIQ=
+github.com/go-openapi/spec v0.20.6/go.mod h1:2OpW+JddWPrpXSCIX8eOx7lZ5iyuWj3RYR6VaaBKcWA=
 github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
 github.com/go-openapi/swag v0.19.15 h1:D2NRCBzS9/pEY3gP9Nl8aDqGUcPFrwG2p+CNFrLyrCM=
 github.com/go-openapi/swag v0.19.15/go.mod h1:QYRuS/SOXUCsnplDa677K7+DxSOj6IPNl/eQntq43wQ=
@@ -59,11 +59,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/swaggo/files v0.0.0-20210815190702-a29dd2bc99b2 h1:+iNTcqQJy0OZ5jk6a5NLib47eqXK8uYcPX+O4+cBpEM=
-github.com/swaggo/files v0.0.0-20210815190702-a29dd2bc99b2/go.mod h1:lKJPbtWzJ9JhsTN1k1gZgleJWY/cqq0psdoMmaThG3w=
-github.com/swaggo/http-swagger v1.2.6 h1:ihTjChUoSRMpFMjWw+0AkL1Ti4r6v8pCgVYLmQVRlRw=
-github.com/swaggo/http-swagger v1.2.6/go.mod h1:CcoICgY3yVDk2u1LQUCMHbAj0fjlxIX+873psXlIKNA=
-github.com/swaggo/swag v1.7.9/go.mod h1:gZ+TJ2w/Ve1RwQsA2IRoSOTidHz6DX+PIG8GWvbnoLU=
+github.com/swaggo/files v0.0.0-20220610200504-28940afbdbfe h1:K8pHPVoTgxFJt1lXuIzzOX7zZhZFldJQK/CgKx9BFIc=
+github.com/swaggo/files v0.0.0-20220610200504-28940afbdbfe/go.mod h1:lKJPbtWzJ9JhsTN1k1gZgleJWY/cqq0psdoMmaThG3w=
 github.com/swaggo/swag v1.8.1 h1:JuARzFX1Z1njbCGz+ZytBR15TFJwF2Q7fu8puJHhQYI=
 github.com/swaggo/swag v1.8.1/go.mod h1:ugemnJsPZm/kRwFUnzBlbHRd0JY9zE1M4F+uy2pAaPQ=
 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
@@ -101,7 +98,6 @@ golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuX
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=

example/go-chi/main.go

@@ -27,8 +27,11 @@ func main() {
 	r := chi.NewRouter()
 
 	r.Get("/swagger/*", httpSwagger.Handler(
+		httpSwagger.BeforeScript("console.log('before 1')"),
+		httpSwagger.BeforeScript("console.log('before 2')"),
 		httpSwagger.URL("http://localhost:1323/swagger/doc.json"), //The url pointing to API definition
 	))
 
+	log.Println("Listening :1323")
 	log.Fatal(http.ListenAndServe(":1323", r))
 }

example/gorilla/go.mod

@@ -6,6 +6,6 @@ require (
 	github.com/gorilla/mux v1.8.0
 	github.com/swaggo/http-swagger v1.2.6
 	github.com/swaggo/swag v1.8.1
-	golang.org/x/net v0.0.0-20220425223048-2871e0cb64e4 // indirect
-	golang.org/x/tools v0.1.10 // indirect
 )
+
+replace github.com/swaggo/http-swagger => ../..

example/gorilla/go.sum

@@ -1,9 +1,7 @@
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/KyleBanks/depth v1.2.1 h1:5h8fQADFrWtarTdtDudMmGsC7GPbOAu6RVB3ffsVFHc=
 github.com/KyleBanks/depth v1.2.1/go.mod h1:jzSb9d0L43HxTQfT+oSA1EEp2q+ne2uh6XgeJcm8brE=
-github.com/PuerkitoBio/purell v1.1.1 h1:WEQqlqaGbrPkxLJWfBwQmfEAE1Z7ONdDLqrN38tNFfI=
 github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV/sSk/8dngufqelfh6jnri85riMAaF/M=
 github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
 github.com/agiledragon/gomonkey/v2 v2.3.1 h1:k+UnUY0EMNYUFUAQVETGY9uUTxjMdnUkP0ARyJS1zzs=
 github.com/agiledragon/gomonkey/v2 v2.3.1/go.mod h1:ap1AmDzcVOAz1YpeJ3TCzIgstoaWLA6jbbgxfB4w2iY=
@@ -16,10 +14,12 @@ github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeME
 github.com/go-openapi/jsonpointer v0.19.3/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
 github.com/go-openapi/jsonpointer v0.19.5 h1:gZr+CIYByUqjcgeLXnQu2gHYQC9o73G2XUeOFYEICuY=
 github.com/go-openapi/jsonpointer v0.19.5/go.mod h1:Pl9vOtqEWErmShwVjC8pYs9cog34VGT37dQOVbmoatg=
-github.com/go-openapi/jsonreference v0.19.6 h1:UBIxjkht+AWIgYzCDSv2GN+E/togfwXUJFRTWhl2Jjs=
 github.com/go-openapi/jsonreference v0.19.6/go.mod h1:diGHMEHg2IqXZGKxqyvWdfWU/aim5Dprw5bqpKkTvns=
-github.com/go-openapi/spec v0.20.4 h1:O8hJrt0UMnhHcluhIdUgCLRWyM2x7QkBXRvOs7m+O1M=
+github.com/go-openapi/jsonreference v0.20.0 h1:MYlu0sBgChmCfJxxUKZ8g1cPWFOB37YSZqewK7OKeyA=
+github.com/go-openapi/jsonreference v0.20.0/go.mod h1:Ag74Ico3lPc+zR+qjn4XBUmXymS4zJbYVCZmcgkasdo=
 github.com/go-openapi/spec v0.20.4/go.mod h1:faYFR1CvsJZ0mNsmsphTMSoRrNV3TEDoAM7FOEWeq8I=
+github.com/go-openapi/spec v0.20.6 h1:ich1RQ3WDbfoeTqTAb+5EIxNmpKVJZWBNah9RAT0jIQ=
+github.com/go-openapi/spec v0.20.6/go.mod h1:2OpW+JddWPrpXSCIX8eOx7lZ5iyuWj3RYR6VaaBKcWA=
 github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
 github.com/go-openapi/swag v0.19.15 h1:D2NRCBzS9/pEY3gP9Nl8aDqGUcPFrwG2p+CNFrLyrCM=
 github.com/go-openapi/swag v0.19.15/go.mod h1:QYRuS/SOXUCsnplDa677K7+DxSOj6IPNl/eQntq43wQ=
@@ -59,11 +59,8 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
-github.com/swaggo/files v0.0.0-20210815190702-a29dd2bc99b2 h1:+iNTcqQJy0OZ5jk6a5NLib47eqXK8uYcPX+O4+cBpEM=
-github.com/swaggo/files v0.0.0-20210815190702-a29dd2bc99b2/go.mod h1:lKJPbtWzJ9JhsTN1k1gZgleJWY/cqq0psdoMmaThG3w=
-github.com/swaggo/http-swagger v1.2.6 h1:ihTjChUoSRMpFMjWw+0AkL1Ti4r6v8pCgVYLmQVRlRw=
-github.com/swaggo/http-swagger v1.2.6/go.mod h1:CcoICgY3yVDk2u1LQUCMHbAj0fjlxIX+873psXlIKNA=
-github.com/swaggo/swag v1.7.9/go.mod h1:gZ+TJ2w/Ve1RwQsA2IRoSOTidHz6DX+PIG8GWvbnoLU=
+github.com/swaggo/files v0.0.0-20220610200504-28940afbdbfe h1:K8pHPVoTgxFJt1lXuIzzOX7zZhZFldJQK/CgKx9BFIc=
+github.com/swaggo/files v0.0.0-20220610200504-28940afbdbfe/go.mod h1:lKJPbtWzJ9JhsTN1k1gZgleJWY/cqq0psdoMmaThG3w=
 github.com/swaggo/swag v1.8.1 h1:JuARzFX1Z1njbCGz+ZytBR15TFJwF2Q7fu8puJHhQYI=
 github.com/swaggo/swag v1.8.1/go.mod h1:ugemnJsPZm/kRwFUnzBlbHRd0JY9zE1M4F+uy2pAaPQ=
 github.com/urfave/cli/v2 v2.3.0/go.mod h1:LJmUH05zAU44vOAcrfzZQKsZbVcdbOG8rtL3/XcUArI=
@@ -101,7 +98,6 @@ golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuX
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=

example/gorilla/main.go

@@ -30,7 +30,7 @@ func main() {
 		httpSwagger.URL("http://localhost:1323/swagger/doc.json"), //The url pointing to API definition
 		httpSwagger.DeepLinking(true),
 		httpSwagger.DocExpansion("none"),
-		httpSwagger.DomID("#swagger-ui"),
+		httpSwagger.DomID("swagger-ui"),
 	)).Methods(http.MethodGet)
 
 	log.Fatal(http.ListenAndServe(":1323", r))

swagger.go

@@ -21,8 +21,8 @@ type Config struct {
 	DocExpansion         string
 	DomID                string
 	InstanceName         string
-	BeforeScript         template.JS
-	AfterScript          template.JS
+	BeforeScripts        []template.JS
+	AfterScripts         []template.JS
 	Plugins              []template.JS
 	UIConfig             map[template.JS]template.JS
 	DeepLinking          bool
@@ -50,7 +50,7 @@ func DocExpansion(docExpansion string) func(*Config) {
 	}
 }
 
-// DomID #swagger-ui.
+// DomID #swagger-ui, without #.
 func DomID(domID string) func(*Config) {
 	return func(c *Config) {
 		c.DomID = domID
@@ -98,15 +98,15 @@ func UIConfig(props map[string]string) func(*Config) {
 // BeforeScript holds JavaScript to be run right before the Swagger UI object is created.
 func BeforeScript(js string) func(*Config) {
 	return func(c *Config) {
-		c.BeforeScript = template.JS(js)
+		c.BeforeScripts = append(c.BeforeScripts, template.JS(js))
 	}
 }
 
 // AfterScript holds JavaScript to be run right after the Swagger UI object is created
 // and set on the window.
 func AfterScript(js string) func(*Config) {
 	return func(c *Config) {
-		c.AfterScript = template.JS(js)
+		c.AfterScripts = append(c.AfterScripts, template.JS(js))
 	}
 }
 
@@ -261,8 +261,8 @@ const indexTempl = `<!-- HTML for static distribution bundle build -->
 <script src="./swagger-ui-standalone-preset.js"> </script>
 <script>
 window.onload = function() {
-  {{- if .BeforeScript}}
-  {{.BeforeScript}}
+  {{- range $script := .BeforeScripts }}
+  {{$script}}
   {{- end}}
   // Build a system
   const ui = SwaggerUIBundle({
@@ -289,8 +289,8 @@ window.onload = function() {
   })
 
   window.ui = ui
-  {{- if .AfterScript}}
-  {{.AfterScript}}
+  {{- range $script := .AfterScripts }}
+  {{$script}}
   {{- end}}
 }
 </script>

swagger_test.go

@@ -212,9 +212,9 @@ func TestConfigURL(t *testing.T) {
 		{
 			desc: "configure BeforeScript",
 			exp: &Config{
-				BeforeScript: `const SomePlugin = (system) => ({
+				BeforeScripts: []template.JS{`const SomePlugin = (system) => ({
     // Some plugin
-  });`,
+  });`},
 			},
 			cfgfn: BeforeScript(`const SomePlugin = (system) => ({
     // Some plugin
@@ -223,9 +223,9 @@ func TestConfigURL(t *testing.T) {
 		{
 			desc: "configure AfterScript",
 			exp: &Config{
-				AfterScript: `const SomePlugin = (system) => ({
+				AfterScripts: []template.JS{`const SomePlugin = (system) => ({
     // Some plugin
-  });`,
+  });`},
 			},
 			cfgfn: AfterScript(`const SomePlugin = (system) => ({
     // Some plugin
@@ -242,6 +242,23 @@ func TestConfigURL(t *testing.T) {
 	}
 }
 
+func TestMultipleScripts(t *testing.T) {
+	router := http.NewServeMux()
+
+	router.Handle("/", Handler(
+		BeforeScript("before 1"),
+		BeforeScript("before 2"),
+		AfterScript("after 1"),
+		AfterScript("after 2"),
+	))
+
+	w1 := performRequest(http.MethodGet, "/index.html", router)
+	assert.Contains(t, w1.Body.String(), "before 1")
+	assert.Contains(t, w1.Body.String(), "before 2")
+	assert.Contains(t, w1.Body.String(), "after 1")
+	assert.Contains(t, w1.Body.String(), "after 2")
+}
+
 func TestUIConfigOptions(t *testing.T) {
 
 	type fixture struct {
@@ -367,14 +384,14 @@ func TestUIConfigOptions(t *testing.T) {
 				PersistAuthorization: true,
 				DocExpansion:         "none",
 				DomID:                "swagger-ui-id",
-				BeforeScript: `const SomePlugin = (system) => ({
+				BeforeScripts: []template.JS{`const SomePlugin = (system) => ({
     // Some plugin
   });
-`,
-				AfterScript: `const someOtherCode = function(){
+`},
+				AfterScripts: []template.JS{`const someOtherCode = function(){
     // Do something
   };
-  someOtherCode();`,
+  someOtherCode();`},
 				Plugins: []template.JS{
 					"SomePlugin",
 					"AnotherPlugin",