Fix unsupported param type url.URL

 closes #583

huma.go

@@ -16,6 +16,7 @@ import (
 	"io"
 	"net"
 	"net/http"
+	"net/url"
 	"reflect"
 	"regexp"
 	"slices"
@@ -1127,6 +1128,16 @@ func Register[I, O any](api API, op Operation, handler func(context.Context, *I)
 						f.Set(reflect.ValueOf(t))
 						pv = value
 						break
+						// Special case: url.URL
+					} else if f.Type() == urlType {
+						u, err := url.Parse(value)
+						if err != nil {
+							res.Add(pb, value, "invalid url.URL value")
+							return
+						}
+						f.Set(reflect.ValueOf(*u))
+						pv = value
+						break
 					}
 
 					// Last resort: use the `encoding.TextUnmarshaler` interface.

huma_test.go

@@ -11,6 +11,7 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"net/http/httputil"
+	"net/url"
 	"os"
 	"strings"
 	"testing"
@@ -352,6 +353,7 @@ func TestFeatures(t *testing.T) {
 					QueryDefault float32   `query:"def" default:"135" example:"5"`
 					QueryBefore  time.Time `query:"before"`
 					QueryDate    time.Time `query:"date" timeFormat:"2006-01-02"`
+					QueryURL     url.URL   `query:"url"`
 					QueryUint    uint32    `query:"uint"`
 					QueryBool    bool      `query:"bool"`
 					QueryStrings []string  `query:"strings"`
@@ -383,6 +385,7 @@ func TestFeatures(t *testing.T) {
 					assert.InDelta(t, 135, input.QueryDefault, 0)
 					assert.True(t, input.QueryBefore.Equal(time.Date(2023, 1, 1, 12, 0, 0, 0, time.UTC)))
 					assert.True(t, input.QueryDate.Equal(time.Date(2023, 1, 1, 0, 0, 0, 0, time.UTC)))
+					assert.Equal(t, url.URL{Scheme: "http", Host: "foo.com", Path: "/bar"}, input.QueryURL)
 					assert.EqualValues(t, 1, input.QueryUint)
 					assert.True(t, input.QueryBool)
 					assert.Equal(t, []string{"foo", "bar"}, input.QueryStrings)
@@ -410,10 +413,10 @@ func TestFeatures(t *testing.T) {
 				assert.Equal(t, "Some docs", api.OpenAPI().Paths["/test-params/{string}/{int}/{uuid}"].Get.Parameters[0].Description)
 
 				// `http.Cookie` should be treated as a string.
-				assert.Equal(t, "string", api.OpenAPI().Paths["/test-params/{string}/{int}/{uuid}"].Get.Parameters[28].Schema.Type)
+				assert.Equal(t, "string", api.OpenAPI().Paths["/test-params/{string}/{int}/{uuid}"].Get.Parameters[29].Schema.Type)
 			},
 			Method: http.MethodGet,
-			URL:    "/test-params/foo/123/fba4f46b-4539-4d19-8e3f-a0e629a243b5?string=bar&int=456&before=2023-01-01T12:00:00Z&date=2023-01-01&uint=1&bool=true&strings=foo,bar&ints=2,3&ints8=4,5&ints16=4,5&ints32=4,5&ints64=4,5&uints=1,2&uints16=10,15&uints32=10,15&uints64=10,15&floats32=2.2,2.3&floats64=3.2,3.3&exploded=foo&exploded=bar",
+			URL:    "/test-params/foo/123/fba4f46b-4539-4d19-8e3f-a0e629a243b5?string=bar&int=456&before=2023-01-01T12:00:00Z&date=2023-01-01&url=http%3A%2F%2Ffoo.com%2Fbar&uint=1&bool=true&strings=foo,bar&ints=2,3&ints8=4,5&ints16=4,5&ints32=4,5&ints64=4,5&uints=1,2&uints16=10,15&uints32=10,15&uints64=10,15&floats32=2.2,2.3&floats64=3.2,3.3&exploded=foo&exploded=bar",
 			Headers: map[string]string{
 				"string": "baz",
 				"int":    "789",
@@ -434,6 +437,7 @@ func TestFeatures(t *testing.T) {
 					QueryFloat    float32   `query:"float"`
 					QueryBefore   time.Time `query:"before"`
 					QueryDate     time.Time `query:"date" timeFormat:"2006-01-02"`
+					QueryURL      url.URL   `query:"url"`
 					QueryUint     uint32    `query:"uint"`
 					QueryBool     bool      `query:"bool"`
 					QueryInts     []int     `query:"ints"`
@@ -454,14 +458,15 @@ func TestFeatures(t *testing.T) {
 				})
 			},
 			Method: http.MethodGet,
-			URL:    "/test-params/bad/not-a-uuid?int=bad&float=bad&before=bad&date=bad&uint=bad&bool=bad&ints=bad&ints8=bad&ints16=bad&ints32=bad&ints64=bad&uints=bad&uints16=bad&uints32=bad&uints64=bad&floats32=bad&floats64=bad",
+			URL:    "/test-params/bad/not-a-uuid?int=bad&float=bad&before=bad&date=bad&url=:&uint=bad&bool=bad&ints=bad&ints8=bad&ints16=bad&ints32=bad&ints64=bad&uints=bad&uints16=bad&uints32=bad&uints64=bad&floats32=bad&floats64=bad",
 			Assert: func(t *testing.T, resp *httptest.ResponseRecorder) {
 				assert.Equal(t, http.StatusUnprocessableEntity, resp.Code)
 
 				assert.Contains(t, resp.Body.String(), "invalid integer")
 				assert.Contains(t, resp.Body.String(), "invalid value: invalid UUID length: 10")
 				assert.Contains(t, resp.Body.String(), "invalid float")
 				assert.Contains(t, resp.Body.String(), "invalid date/time")
+				assert.Contains(t, resp.Body.String(), "invalid url.URL")
 				assert.Contains(t, resp.Body.String(), "invalid bool")
 				assert.Contains(t, resp.Body.String(), "required query parameter is missing")
 				assert.Contains(t, resp.Body.String(), "required header parameter is missing")