add test, fix RemoteURLHandler field name

datamodel/document_config.go

@@ -18,9 +18,9 @@ type DocumentConfiguration struct {
 	// Schema must be set to "http/https".
 	BaseURL *url.URL
 
-	// RemoteDocumentGetter is a function that will be used to retrieve remote documents. If not set, the default
+	// RemoteURLHandler is a function that will be used to retrieve remote documents. If not set, the default
 	// remote document getter will be used.
-	RemoteDocumentGetter func(url string) (*http.Response, error)
+	RemoteURLHandler func(url string) (*http.Response, error)
 
 	// If resolving locally, the BasePath will be the root from which relative references will be resolved from.
 	// It's usually the location of the root specification.

datamodel/low/v2/swagger.go

@@ -144,7 +144,7 @@ func createDocument(info *datamodel.SpecInfo, config *datamodel.DocumentConfigur
 	// build an index
 	idx := index.NewSpecIndexWithConfig(info.RootNode, &index.SpecIndexConfig{
 		BaseURL:           config.BaseURL,
-		RemoteDocumentGetter: config.RemoteDocumentGetter,
+		RemoteURLHandler:  config.RemoteURLHandler,
 		AllowRemoteLookup: config.AllowRemoteReferences,
 		AllowFileLookup:   config.AllowFileReferences,
 	})

datamodel/low/v3/callback.go

@@ -6,11 +6,12 @@ package v3
 import (
 	"crypto/sha256"
 	"fmt"
+	"sort"
+	"strings"
+
 	"github.com/pb33f/libopenapi/datamodel/low"
 	"github.com/pb33f/libopenapi/index"
 	"gopkg.in/yaml.v3"
-	"sort"
-	"strings"
 )
 
 // Callback represents a low-level Callback object for OpenAPI 3+.

datamodel/low/v3/create_document.go

@@ -49,7 +49,7 @@ func createDocument(info *datamodel.SpecInfo, config *datamodel.DocumentConfigur
 	// build an index
 	idx := index.NewSpecIndexWithConfig(info.RootNode, &index.SpecIndexConfig{
 		BaseURL:           config.BaseURL,
-		RemoteDocumentGetter: config.RemoteDocumentGetter,
+		RemoteURLHandler:  config.RemoteURLHandler,
 		BasePath:          cwd,
 		AllowFileLookup:   config.AllowFileReferences,
 		AllowRemoteLookup: config.AllowRemoteReferences,

index/find_component.go

@@ -88,9 +88,9 @@ func (index *SpecIndex) FindComponent(componentId string, parent *yaml.Node) *Re
 
 var httpClient = &http.Client{Timeout: time.Duration(60) * time.Second}
 
-type RemoteDocumentGetter = func(url string) (*http.Response, error)
+type RemoteURLHandler = func(url string) (*http.Response, error)
 
-func getRemoteDoc(g RemoteDocumentGetter, u string, d chan []byte, e chan error) {
+func getRemoteDoc(g RemoteURLHandler, u string, d chan []byte, e chan error) {
 	resp, err := g(u)
 	if err != nil {
 		e <- err
@@ -124,9 +124,9 @@ func (index *SpecIndex) lookupRemoteReference(ref string) (*yaml.Node, *yaml.Nod
 		go func(uri string) {
 			bc := make(chan []byte)
 			ec := make(chan error)
-			var getter RemoteDocumentGetter = httpClient.Get
+			var getter RemoteURLHandler = httpClient.Get
-			if index.config != nil && index.config.RemoteDocumentGetter != nil {
+			if index.config != nil && index.config.RemoteURLHandler != nil {
-				getter = index.config.RemoteDocumentGetter
+				getter = index.config.RemoteURLHandler
 			}
 			go getRemoteDoc(getter, uri, bc, ec)
 			select {

index/find_component_test.go

@@ -4,10 +4,14 @@
 package index
 
 import (
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"reflect"
+	"testing"
+
 	"github.com/stretchr/testify/assert"
 	"gopkg.in/yaml.v3"
-	"os"
-	"testing"
 )
 
 func TestSpecIndex_performExternalLookup(t *testing.T) {
@@ -143,3 +147,59 @@ paths:
 	assert.Equal(t, "query", crsParam.Node.Content[3].Value)
 	assert.Equal(t, "form", crsParam.Node.Content[9].Value)
 }
+
+func TestSpecIndex_LocateRemoteDocsWithRemoteURLHandler(t *testing.T) {
+	// This test will push the index to do try and locate remote references that use relative references
+	spec := `openapi: 3.0.2
+info:
+  title: Test
+  version: 1.0.0
+paths:
+  /test:
+    get:
+      parameters:
+        - $ref: "https://schemas.opengis.net/ogcapi/features/part2/1.0/openapi/ogcapi-features-2.yaml#/components/parameters/crs"`
+
+	var rootNode yaml.Node
+	_ = yaml.Unmarshal([]byte(spec), &rootNode)
+
+	c := CreateOpenAPIIndexConfig()
+	c.RemoteURLHandler = httpClient.Get
+
+	index := NewSpecIndexWithConfig(&rootNode, c)
+
+	// extract crs param from index
+	crsParam := index.GetMappedReferences()["https://schemas.opengis.net/ogcapi/features/part2/1.0/openapi/ogcapi-features-2.yaml#/components/parameters/crs"]
+	assert.NotNil(t, crsParam)
+	assert.True(t, crsParam.IsRemote)
+	assert.Equal(t, "crs", crsParam.Node.Content[1].Value)
+	assert.Equal(t, "query", crsParam.Node.Content[3].Value)
+	assert.Equal(t, "form", crsParam.Node.Content[9].Value)
+}
+
+func TestGetRemoteDoc(t *testing.T) {
+	// Mock HTTP server
+	server := httptest.NewServer(http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
+		rw.Write([]byte(`OK`))
+	}))
+	// Close the server when test finishes
+	defer server.Close()
+
+	// Channel for data and error
+	dataChan := make(chan []byte)
+	errorChan := make(chan error)
+
+	go getRemoteDoc(http.Get, server.URL, dataChan, errorChan)
+
+	data := <-dataChan
+	err := <-errorChan
+
+	if err != nil {
+		t.Errorf("Expected no error, got %v", err)
+	}
+
+	expectedData := []byte(`OK`)
+	if !reflect.DeepEqual(data, expectedData) {
+		t.Errorf("Expected %v, got %v", expectedData, data)
+	}
+}

index/index_model.go

@@ -61,9 +61,9 @@ type SpecIndexConfig struct {
 	// More details on relative references can be found in issue #73: https://github.com/pb33f/libopenapi/issues/73
 	BaseURL *url.URL // set the Base URL for resolving relative references if the spec is exploded.
 
-	// If resolving remotely, the RemoteDocumentGetter will be used to fetch the remote document.
+	// If resolving remotely, the RemoteURLHandler will be used to fetch the remote document.
 	// If not set, the default http client will be used.
-	RemoteDocumentGetter func(url string) (*http.Response, error)
+	RemoteURLHandler func(url string) (*http.Response, error)
 
 	// If resolving locally, the BasePath will be the root from which relative references will be resolved from
 	BasePath string // set the Base Path for resolving relative references if the spec is exploded.