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9fe4437bda
* Use vendored go-swagger * vendor go-swagger * revert un wanteed change * remove un-needed GO111MODULE * Update Makefile Co-Authored-By: techknowlogick <matti@mdranta.net>
269 lines
8.8 KiB
Go
269 lines
8.8 KiB
Go
// Copyright 2015 go-swagger maintainers
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package validate
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import (
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"reflect"
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"regexp"
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"strings"
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"github.com/go-openapi/errors"
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"github.com/go-openapi/spec"
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"github.com/go-openapi/strfmt"
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)
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type objectValidator struct {
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Path string
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In string
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MaxProperties *int64
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MinProperties *int64
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Required []string
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Properties map[string]spec.Schema
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AdditionalProperties *spec.SchemaOrBool
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PatternProperties map[string]spec.Schema
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Root interface{}
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KnownFormats strfmt.Registry
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Options SchemaValidatorOptions
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}
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func (o *objectValidator) SetPath(path string) {
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o.Path = path
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}
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func (o *objectValidator) Applies(source interface{}, kind reflect.Kind) bool {
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// TODO: this should also work for structs
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// there is a problem in the type validator where it will be unhappy about null values
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// so that requires more testing
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r := reflect.TypeOf(source) == specSchemaType && (kind == reflect.Map || kind == reflect.Struct)
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debugLog("object validator for %q applies %t for %T (kind: %v)\n", o.Path, r, source, kind)
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return r
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}
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func (o *objectValidator) isPropertyName() bool {
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p := strings.Split(o.Path, ".")
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return p[len(p)-1] == "properties" && p[len(p)-2] != "properties"
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}
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func (o *objectValidator) checkArrayMustHaveItems(res *Result, val map[string]interface{}) {
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if t, typeFound := val["type"]; typeFound {
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if tpe, ok := t.(string); ok && tpe == "array" {
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if _, itemsKeyFound := val["items"]; !itemsKeyFound {
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res.AddErrors(errors.Required("items", o.Path))
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}
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}
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}
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}
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func (o *objectValidator) checkItemsMustBeTypeArray(res *Result, val map[string]interface{}) {
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if !o.isPropertyName() {
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if _, itemsKeyFound := val["items"]; itemsKeyFound {
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t, typeFound := val["type"]
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if typeFound {
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if tpe, ok := t.(string); !ok || tpe != "array" {
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res.AddErrors(errors.InvalidType(o.Path, o.In, "array", nil))
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}
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} else {
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// there is no type
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res.AddErrors(errors.Required("type", o.Path))
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}
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}
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}
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}
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func (o *objectValidator) precheck(res *Result, val map[string]interface{}) {
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o.checkArrayMustHaveItems(res, val)
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if !o.Options.DisableObjectArrayTypeCheck {
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o.checkItemsMustBeTypeArray(res, val)
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}
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}
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func (o *objectValidator) Validate(data interface{}) *Result {
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val := data.(map[string]interface{})
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// TODO: guard against nil data
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numKeys := int64(len(val))
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if o.MinProperties != nil && numKeys < *o.MinProperties {
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return errorHelp.sErr(errors.TooFewProperties(o.Path, o.In, *o.MinProperties))
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}
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if o.MaxProperties != nil && numKeys > *o.MaxProperties {
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return errorHelp.sErr(errors.TooManyProperties(o.Path, o.In, *o.MaxProperties))
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}
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res := new(Result)
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o.precheck(res, val)
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// check validity of field names
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if o.AdditionalProperties != nil && !o.AdditionalProperties.Allows {
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// Case: additionalProperties: false
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for k := range val {
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_, regularProperty := o.Properties[k]
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matched := false
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for pk := range o.PatternProperties {
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if matches, _ := regexp.MatchString(pk, k); matches {
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matched = true
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break
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}
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}
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if !regularProperty && k != "$schema" && k != "id" && !matched {
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// Special properties "$schema" and "id" are ignored
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res.AddErrors(errors.PropertyNotAllowed(o.Path, o.In, k))
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// BUG(fredbi): This section should move to a part dedicated to spec validation as
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// it will conflict with regular schemas where a property "headers" is defined.
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//
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// Croaks a more explicit message on top of the standard one
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// on some recognized cases.
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//
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// NOTE: edge cases with invalid type assertion are simply ignored here.
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// NOTE: prefix your messages here by "IMPORTANT!" so there are not filtered
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// by higher level callers (the IMPORTANT! tag will be eventually
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// removed).
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switch k {
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// $ref is forbidden in header
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case "headers":
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if val[k] != nil {
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if headers, mapOk := val[k].(map[string]interface{}); mapOk {
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for headerKey, headerBody := range headers {
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if headerBody != nil {
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if headerSchema, mapOfMapOk := headerBody.(map[string]interface{}); mapOfMapOk {
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if _, found := headerSchema["$ref"]; found {
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var msg string
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if refString, stringOk := headerSchema["$ref"].(string); stringOk {
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msg = strings.Join([]string{", one may not use $ref=\":", refString, "\""}, "")
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}
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res.AddErrors(refNotAllowedInHeaderMsg(o.Path, headerKey, msg))
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}
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}
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}
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}
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}
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}
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/*
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case "$ref":
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if val[k] != nil {
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// TODO: check context of that ref: warn about siblings, check against invalid context
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}
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*/
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}
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}
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}
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} else {
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// Cases: no additionalProperties (implying: true), or additionalProperties: true, or additionalProperties: { <<schema>> }
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for key, value := range val {
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_, regularProperty := o.Properties[key]
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// Validates property against "patternProperties" if applicable
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// BUG(fredbi): succeededOnce is always false
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// NOTE: how about regular properties which do not match patternProperties?
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matched, succeededOnce, _ := o.validatePatternProperty(key, value, res)
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if !(regularProperty || matched || succeededOnce) {
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// Cases: properties which are not regular properties and have not been matched by the PatternProperties validator
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if o.AdditionalProperties != nil && o.AdditionalProperties.Schema != nil {
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// AdditionalProperties as Schema
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r := NewSchemaValidator(o.AdditionalProperties.Schema, o.Root, o.Path+"."+key, o.KnownFormats, o.Options.Options()...).Validate(value)
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res.mergeForField(data.(map[string]interface{}), key, r)
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} else if regularProperty && !(matched || succeededOnce) {
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// TODO: this is dead code since regularProperty=false here
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res.AddErrors(errors.FailedAllPatternProperties(o.Path, o.In, key))
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}
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}
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}
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// Valid cases: additionalProperties: true or undefined
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}
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createdFromDefaults := map[string]bool{}
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// Property types:
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// - regular Property
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for pName := range o.Properties {
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pSchema := o.Properties[pName] // one instance per iteration
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rName := pName
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if o.Path != "" {
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rName = o.Path + "." + pName
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}
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// Recursively validates each property against its schema
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if v, ok := val[pName]; ok {
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r := NewSchemaValidator(&pSchema, o.Root, rName, o.KnownFormats, o.Options.Options()...).Validate(v)
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res.mergeForField(data.(map[string]interface{}), pName, r)
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} else if pSchema.Default != nil {
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// If a default value is defined, creates the property from defaults
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// NOTE: JSON schema does not enforce default values to be valid against schema. Swagger does.
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createdFromDefaults[pName] = true
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res.addPropertySchemata(data.(map[string]interface{}), pName, &pSchema)
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}
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}
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// Check required properties
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if len(o.Required) > 0 {
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for _, k := range o.Required {
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if _, ok := val[k]; !ok && !createdFromDefaults[k] {
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res.AddErrors(errors.Required(o.Path+"."+k, o.In))
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continue
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}
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}
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}
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// Check patternProperties
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// TODO: it looks like we have done that twice in many cases
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for key, value := range val {
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_, regularProperty := o.Properties[key]
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matched, _ /*succeededOnce*/, patterns := o.validatePatternProperty(key, value, res)
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if !regularProperty && (matched /*|| succeededOnce*/) {
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for _, pName := range patterns {
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if v, ok := o.PatternProperties[pName]; ok {
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r := NewSchemaValidator(&v, o.Root, o.Path+"."+key, o.KnownFormats, o.Options.Options()...).Validate(value)
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res.mergeForField(data.(map[string]interface{}), key, r)
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}
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}
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}
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}
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return res
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}
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// TODO: succeededOnce is not used anywhere
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func (o *objectValidator) validatePatternProperty(key string, value interface{}, result *Result) (bool, bool, []string) {
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matched := false
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succeededOnce := false
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var patterns []string
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for k, schema := range o.PatternProperties {
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sch := schema
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if match, _ := regexp.MatchString(k, key); match {
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patterns = append(patterns, k)
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matched = true
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validator := NewSchemaValidator(&sch, o.Root, o.Path+"."+key, o.KnownFormats, o.Options.Options()...)
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res := validator.Validate(value)
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result.Merge(res)
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}
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}
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// BUG(fredbi): can't get to here. Should remove dead code (commented out).
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//if succeededOnce {
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// result.Inc()
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//}
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return matched, succeededOnce, patterns
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}
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