feat: added format validators for datetime, date, email, ipv4/6 and s…

…ome others

keywords_format.go

@@ -0,0 +1,151 @@
+package jsonschema
+
+import (
+	"fmt"
+	"net"
+	"regexp"
+	"strings"
+	"time"
+)
+
+const (
+	email    string = "^(((([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+(\\.([a-zA-Z]|\\d|[!#\\$%&'\\*\\+\\-\\/=\\?\\^_`{\\|}~]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])+)*)|((\\x22)((((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(([\\x01-\\x08\\x0b\\x0c\\x0e-\\x1f\\x7f]|\\x21|[\\x23-\\x5b]|[\\x5d-\\x7e]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(\\([\\x01-\\x09\\x0b\\x0c\\x0d-\\x7f]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}]))))*(((\\x20|\\x09)*(\\x0d\\x0a))?(\\x20|\\x09)+)?(\\x22)))@((([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|\\.|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|\\d|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.)+(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])|(([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])([a-zA-Z]|\\d|-|_|~|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])*([a-zA-Z]|[\\x{00A0}-\\x{D7FF}\\x{F900}-\\x{FDCF}\\x{FDF0}-\\x{FFEF}])))\\.?$"
+	hostname string = `^([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])(\.([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]{0,61}[a-zA-Z0-9]))*$`
+)
+
+var (
+	emailPattern    = regexp.MustCompile(email)
+	hostnamePattern = regexp.MustCompile(hostname)
+)
+
+// func FormatType(data interface{}) string {
+// 	switch
+// }
+// Note: Date and time format names are derived from RFC 3339, section
+// 5.6  [RFC3339].
+// http://json-schema.org/latest/json-schema-validation.html#RFC3339
+
+type format string
+
+func newFormat() Validator {
+	return new(format)
+}
+
+func (f format) Validate(data interface{}) error {
+	if str, ok := data.(string); ok {
+		switch f {
+		case "date-time":
+			return isValidDateTime(str)
+		case "date":
+			return isValidDate(str)
+		case "email":
+			return isValidEmail(str)
+		case "hostname":
+			return isValidHostname(str)
+		case "idn-email":
+			return isValidIdnEmail(str)
+		case "idn-hostname":
+			return isValidIdnHostname(str)
+		case "ipv4":
+			return isValidIPv4(str)
+		case "ipv6":
+			return isValidIPv6(str)
+		case "iri-reference":
+			return isValidIriRef(str)
+		case "iri":
+			return isValidIri(str)
+		case "json-pointer":
+			return isValidJSONPointer(str)
+		case "regex":
+			return isValidRegex(str)
+		case "relative-json-pointer":
+			return isValidRelJSONPointer(str)
+		case "time":
+			return isValidTime(str)
+		case "uri-reference":
+			return isValidURIRef(str)
+		case "uri-template":
+			return isValidURITemplate(str)
+		case "uri":
+			return isValidURI(str)
+		}
+	}
+	return nil
+}
+
+func isValidDateTime(dateTime string) error {
+	if _, err := time.Parse(time.RFC3339, dateTime); err != nil {
+		return fmt.Errorf("date-time incorrectly formatted: %s", err.Error())
+	}
+	return nil
+}
+
+func isValidDate(date string) error {
+	arbitraryTime := "T08:30:06.283185Z"
+	dateTime := fmt.Sprintf("%s%s", date, arbitraryTime)
+	return isValidDateTime(dateTime)
+}
+
+func isValidEmail(email string) error {
+	if !emailPattern.MatchString(email) {
+		return fmt.Errorf("invalid email format")
+	}
+	return nil
+}
+func isValidHostname(hostname string) error {
+	if !hostnamePattern.MatchString(hostname) || len(hostname) > 255 {
+		return fmt.Errorf("invalid hostname string")
+	}
+	return nil
+}
+func isValidIdnEmail(idnEmail string) error {
+	return nil
+}
+func isValidIdnHostname(idnHostname string) error {
+	return nil
+}
+func isValidIPv4(ipv4 string) error {
+	parsedIP := net.ParseIP(ipv4)
+	hasDots := strings.Contains(ipv4, ".")
+	if !hasDots || parsedIP == nil {
+		return fmt.Errorf("invalid IPv4 address")
+	}
+	return nil
+}
+
+func isValidIPv6(ipv6 string) error {
+	parsedIP := net.ParseIP(ipv6)
+	hasColons := strings.Contains(ipv6, ":")
+	if !hasColons || parsedIP == nil {
+		return fmt.Errorf("invalid IPv4 address")
+	}
+	return nil
+}
+
+func isValidIriRef(iriRef string) error {
+	return nil
+}
+func isValidIri(iri string) error {
+	return nil
+}
+func isValidJSONPointer(jsonPointer string) error {
+	return nil
+}
+func isValidRegex(regex string) error {
+	return nil
+}
+func isValidRelJSONPointer(relJsonPointer string) error {
+	return nil
+}
+func isValidTime(time string) error {
+	return nil
+}
+func isValidURIRef(uriRef string) error {
+	return nil
+}
+func isValidURITemplate(uriTemplate string) error {
+	return nil
+}
+func isValidURI(uri string) error {
+	return nil
+}

schema_test.go

@@ -283,19 +283,19 @@ func TestDraft7(t *testing.T) {
 		// "testdata/draft7/optional/content.json",
 		// "testdata/draft7/optional/ecmascript-regex.json",
 		// "testdata/draft7/optional/zeroTerminatedFloats.json",
-		// "testdata/draft7/optional/format/date-time.json",
-		// "testdata/draft7/optional/format/hostname.json",
-		// "testdata/draft7/optional/format/ipv4.json",
+		"testdata/draft7/optional/format/date-time.json",
+		"testdata/draft7/optional/format/hostname.json",
+		"testdata/draft7/optional/format/ipv4.json",
 		// "testdata/draft7/optional/format/iri.json",
 		// "testdata/draft7/optional/format/relative-json-pointer.json",
 		// "testdata/draft7/optional/format/uri-template.json",
-		// "testdata/draft7/optional/format/date.json",
+		"testdata/draft7/optional/format/date.json",
 		// "testdata/draft7/optional/format/idn-email.json",
-		// "testdata/draft7/optional/format/ipv6.json",
+		"testdata/draft7/optional/format/ipv6.json",
 		// "testdata/draft7/optional/format/json-pointer.json",
 		// "testdata/draft7/optional/format/time.json",
 		// "testdata/draft7/optional/format/uri.json",
-		// "testdata/draft7/optional/format/email.json",
+		"testdata/draft7/optional/format/email.json",
 		// "testdata/draft7/optional/format/idn-hostname.json",
 		// "testdata/draft7/optional/format/iri-reference.json",
 		// "testdata/draft7/optional/format/regex.json",

validate.go

@@ -88,4 +88,7 @@ var DefaultValidators = map[string]ValMaker{
 	"if":   newIif,
 	"then": newThen,
 	"else": newEls,
+
+	//optional formats
+	"format": newFormat,
 }