108 lines
2.5 KiB
Go
108 lines
2.5 KiB
Go
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/*
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Copyright 2018 The Kubernetes Authors.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package fastcgi
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import (
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"fmt"
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"reflect"
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"github.com/pkg/errors"
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networking "k8s.io/api/networking/v1beta1"
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"k8s.io/client-go/tools/cache"
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"k8s.io/ingress-nginx/internal/ingress/annotations/parser"
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ing_errors "k8s.io/ingress-nginx/internal/ingress/errors"
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"k8s.io/ingress-nginx/internal/ingress/resolver"
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)
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type fastcgi struct {
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r resolver.Resolver
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}
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// Config describes the per location fastcgi config
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type Config struct {
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Index string `json:"index"`
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Params map[string]string `json:"params"`
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}
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// Equal tests for equality between two Configuration types
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func (l1 *Config) Equal(l2 *Config) bool {
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if l1 == l2 {
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return true
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}
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if l1 == nil || l2 == nil {
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return false
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}
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if l1.Index != l2.Index {
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return false
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}
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return reflect.DeepEqual(l1.Params, l2.Params)
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}
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// NewParser creates a new fastcgiConfig protocol annotation parser
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func NewParser(r resolver.Resolver) parser.IngressAnnotation {
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return fastcgi{r}
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}
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// ParseAnnotations parses the annotations contained in the ingress
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// rule used to indicate the fastcgiConfig.
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func (a fastcgi) Parse(ing *networking.Ingress) (interface{}, error) {
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fcgiConfig := Config{}
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if ing.GetAnnotations() == nil {
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return fcgiConfig, nil
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}
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index, err := parser.GetStringAnnotation("fastcgi-index", ing)
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if err != nil {
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index = ""
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}
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fcgiConfig.Index = index
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cm, err := parser.GetStringAnnotation("fastcgi-params-configmap", ing)
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if err != nil {
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return fcgiConfig, nil
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}
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cmns, cmn, err := cache.SplitMetaNamespaceKey(cm)
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if err != nil {
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return fcgiConfig, ing_errors.LocationDenied{
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Reason: errors.Wrap(err, "error reading configmap name from annotation"),
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}
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}
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if cmns == "" {
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cmns = ing.Namespace
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}
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cm = fmt.Sprintf("%v/%v", cmns, cmn)
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cmap, err := a.r.GetConfigMap(cm)
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if err != nil {
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return fcgiConfig, ing_errors.LocationDenied{
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Reason: errors.Wrapf(err, "unexpected error reading configmap %v", cm),
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}
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}
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fcgiConfig.Params = cmap.Data
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return fcgiConfig, nil
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}
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