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fix(o2k): request-validator support +json suffix for schemas #175

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merged 2 commits into from
May 23, 2024
Merged

fix(o2k): request-validator support +json suffix for schemas #175

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f848b3d
fix: request-validator plugin cannot be created when using +json suffix
vm-001 May 22, 2024
adda33f
do not panic
vm-001 May 23, 2024
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85 changes: 84 additions & 1 deletion openapi2kong/oas3_testfiles/13-request-validator-plugin.expected.json
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,89 @@
"OAS3file_13-request-validator-plugin.yaml"
]
},
{
"id": "ab63ee84-0324-5832-840a-d51118308654",
"methods": [
"POST"
],
"name": "example_body-single-content-type-with-charset_post",
"paths": [
"~/body-single-content-type-with-charset$"
],
"plugins": [
{
"config": {
"allowed_content_types": [
"application/json; charset=UTF-8"
],
"body_schema": "{\"$ref\":\"#/definitions/jsonSchema\",\"definitions\":{\"jsonSchema\":{\"properties\":{\"id\":{\"type\":\"integer\"},\"name\":{\"type\":\"string\"}},\"type\":\"object\"}}}",
"version": "draft4"
},
"id": "c7ee68c7-96e8-56ca-98f6-cbe44cf3c9ce",
"name": "request-validator",
"tags": [
"OAS3_import",
"OAS3file_13-request-validator-plugin.yaml"
]
}
],
"regex_priority": 200,
"strip_path": false,
"tags": [
"OAS3_import",
"OAS3file_13-request-validator-plugin.yaml"
]
},
{
"id": "38af9752-0698-5a31-b825-90a83fee4225",
"methods": [
"POST"
],
"name": "example_body-single-content-type-with-structured-syntax-suffix_post",
"paths": [
"~/body-single-content-type-with-structured-syntax-suffix$"
],
"plugins": [
{
"config": {
"allowed_content_types": [
"application/merge-patch+json"
],
"body_schema": "{\"$ref\":\"#/definitions/jsonSchema\",\"definitions\":{\"jsonSchema\":{\"properties\":{\"id\":{\"type\":\"integer\"},\"name\":{\"type\":\"string\"}},\"type\":\"object\"}}}",
"version": "draft4"
},
"id": "fc80da5e-c48a-59c6-b879-ab8ff331746d",
"name": "request-validator",
"tags": [
"OAS3_import",
"OAS3file_13-request-validator-plugin.yaml"
]
}
],
"regex_priority": 200,
"strip_path": false,
"tags": [
"OAS3_import",
"OAS3file_13-request-validator-plugin.yaml"
]
},
{
"id": "fea43c61-09c5-5baf-879f-8542b485f631",
"methods": [
"POST"
],
"name": "example_body-single-content-xml_post",
"paths": [
"~/body-single-content-xml$"
],
"plugins": [],
"regex_priority": 200,
"strip_path": false,
"tags": [
"OAS3_import",
"OAS3file_13-request-validator-plugin.yaml"
]
},
{
"id": "6d59c2fe-e723-5238-a847-d87d8e8bb7fc",
"methods": [
Expand Down Expand Up @@ -150,4 +233,4 @@
}
],
"upstreams": []
}
}
32 changes: 32 additions & 0 deletions openapi2kong/oas3_testfiles/13-request-validator-plugin.yaml
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Original file line number Diff line number Diff line change
Expand Up @@ -66,6 +66,38 @@ paths:
responses:
"200":
description: OK
/body-single-content-xml:
post:
requestBody:
content:
application/xml:
schema:
$ref: '#/components/schemas/xmlSchema'
responses:
"200":
description: OK

/body-single-content-type-with-charset:
post:
requestBody:
content:
application/json; charset=UTF-8:
schema:
$ref: '#/components/schemas/jsonSchema'
responses:
"200":
description: OK

/body-single-content-type-with-structured-syntax-suffix:
post:
requestBody:
content:
application/merge-patch+json:
schema:
$ref: '#/components/schemas/jsonSchema'
responses:
"200":
description: OK

components:
schemas:
Expand Down
17 changes: 16 additions & 1 deletion openapi2kong/validator.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package openapi2kong

import (
"encoding/json"
"mime"
"sort"
"strings"

Expand Down Expand Up @@ -79,6 +80,15 @@ func generateParameterSchema(operation *openapi3.Operation, insoCompat bool) []m
return result
}

func parseMediaType(mediaType string) (string, string, error) {
parsedMediaType, _, err := mime.ParseMediaType(mediaType)
if err != nil {
return "", "", err
}
parts := strings.Split(parsedMediaType, "/")
return parts[0], parts[1], nil
}

// generateBodySchema returns the given schema if there is one, a generated
// schema if it was specified, or "" if there is none.
func generateBodySchema(operation *openapi3.Operation) string {
Expand All @@ -98,7 +108,12 @@ func generateBodySchema(operation *openapi3.Operation) string {
}

for contentType, content := range content {
if strings.Contains(strings.ToLower(contentType), "application/json") {
typ, subtype, err := parseMediaType(contentType)
if err != nil {
logbasics.Info("invalid MediaType '" + contentType + "' will be ignored")
return ""
}
if typ == "application" && (subtype == "json" || strings.HasSuffix(subtype, "+json")) {
return extractSchema((*content).Schema)
}
}
Expand Down
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