fix: don't panic on a null item in videos

fields.go

@@ -257,6 +257,10 @@ func validateFieldsV0(publiccode PublicCode, parser *Parser, network bool, baseU
 		}
 
 		for i, v := range desc.Videos {
+			if v == nil {
+				continue
+			}
+
 			err := parser.checkOEmbedURL((*url.URL)(v))
 			if err != nil {
 				vr = append(vr, newValidationErrorf(
@@ -431,6 +435,10 @@ func validateFieldsV1(publiccode PublicCode, parser *Parser, network bool, baseU
 		}
 
 		for i, v := range desc.Videos {
+			if v == nil {
+				continue
+			}
+
 			err := parser.checkOEmbedURL((*url.URL)(v))
 			if err != nil {
 				vr = append(vr, newValidationErrorf(

testdata/v0/invalid/description_en_videos_invalid.yml

@@ -39,6 +39,10 @@ description:
     videos:
       # Should NOT validate: not a valid URL
       - ABC
+      # Should NOT validate: null is not a URL
+      -
+      # Should NOT validate: an empty string is not a URL
+      - ""
 
 legal:
   license: AGPL-3.0-or-later

testdata/v1/invalid/description_en_videos_invalid.yml

@@ -39,6 +39,10 @@ description:
     videos:
       # Should NOT validate: not a valid URL
       - ABC
+      # Should NOT validate: null is not a URL
+      -
+      # Should NOT validate: an empty string is not a URL
+      - ""
 
 legal:
   license: AGPL-3.0-or-later

v0.go

@@ -92,7 +92,7 @@ type DescV0 struct {
 	APIDocumentation *URL      `json:"apiDocumentation,omitempty" validate:"omitnil,url_http_url"         yaml:"apiDocumentation,omitempty"`
 	Features         *[]string `json:"features,omitempty"         validate:"gt=0,dive"                    yaml:"features,omitempty"`
 	Screenshots      []string  `json:"screenshots,omitempty"      yaml:"screenshots,omitempty"`
-	Videos           []*URL    `json:"videos,omitempty"           validate:"dive,omitnil,url_http_url"    yaml:"videos,omitempty"`
+	Videos           []*URL    `json:"videos,omitempty"           validate:"dive,required,url_http_url"   yaml:"videos,omitempty"`
 	Awards           []string  `json:"awards,omitempty"           yaml:"awards,omitempty"`
 }
 

v0_test.go

@@ -445,8 +445,11 @@ func TestInvalidTestcasesV0(t *testing.T) {
 		},
 		"description_en_videos_invalid.yml": ValidationResults{
 			ValidationError{"", "description.en.videos[0]", "videos[0] must be an HTTP URL", 41, 9},
+			ValidationError{"", "description.en.videos[1]", "videos[1] is a required field", 43, 8},
+			ValidationError{"", "description.en.videos[2]", "videos[2] must be an HTTP URL", 45, 9},
 			ValidationWarning{"", "description.en.videos", "This key is DEPRECATED and will be removed in the future. Link videos from the documentation or the website instead", 39, 5},
 			ValidationError{"", "description.en.videos[0]", "'ABC' is not a valid video URL supporting oEmbed: invalid oEmbed link: ABC", 41, 9},
+			ValidationError{"", "description.en.videos[2]", "'' is not a valid video URL supporting oEmbed: invalid oEmbed link: ", 45, 9},
 		},
 		"description_en_videos_invalid_oembed.yml": ValidationResults{
 			ValidationWarning{"", "description.en.videos", "This key is DEPRECATED and will be removed in the future. Link videos from the documentation or the website instead", 39, 5},

v1.go

@@ -77,7 +77,7 @@ type DescV1 struct {
 	APIDocumentation *URL      `json:"apiDocumentation,omitempty" validate:"omitnil,url_http_url"         yaml:"apiDocumentation,omitempty"`
 	Features         *[]string `json:"features,omitempty"         validate:"gt=0,dive"                    yaml:"features,omitempty"`
 	Screenshots      []string  `json:"screenshots,omitempty"      yaml:"screenshots,omitempty"`
-	Videos           []*URL    `json:"videos,omitempty"           validate:"dive,omitnil,url_http_url"    yaml:"videos,omitempty"`
+	Videos           []*URL    `json:"videos,omitempty"           validate:"dive,required,url_http_url"   yaml:"videos,omitempty"`
 	Awards           []string  `json:"awards,omitempty"           yaml:"awards,omitempty"`
 }