#!/bin/bash
# shellcheck disable=SC2034,SC2153,SC2155,SC2164

# Copyright Istio Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

####################################################################################################
# WARNING: THIS IS AN AUTO-GENERATED FILE, DO NOT EDIT. PLEASE MODIFY THE ORIGINAL MARKDOWN FILE:
#          docs/tasks/security/authorization/authz-deny/index.md
####################################################################################################

snip_before_you_begin_1() {
kubectl create ns foo
kubectl apply -f <(istioctl kube-inject -f samples/httpbin/httpbin.yaml) -n foo
kubectl apply -f <(istioctl kube-inject -f samples/sleep/sleep.yaml) -n foo
}

snip_before_you_begin_2() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl http://httpbin.foo:8000/ip -sS -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_before_you_begin_2_out <<\ENDSNIP
200
ENDSNIP

snip_explicitly_deny_a_request_1() {
kubectl apply -f - <<EOF
apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
  name: deny-method-get
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  action: DENY
  rules:
  - to:
    - operation:
        methods: ["GET"]
EOF
}

snip_explicitly_deny_a_request_2() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl "http://httpbin.foo:8000/get" -X GET -sS -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_explicitly_deny_a_request_2_out <<\ENDSNIP
403
ENDSNIP

snip_explicitly_deny_a_request_3() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl "http://httpbin.foo:8000/post" -X POST -sS -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_explicitly_deny_a_request_3_out <<\ENDSNIP
200
ENDSNIP

snip_explicitly_deny_a_request_4() {
kubectl apply -f - <<EOF
apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
  name: deny-method-get
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  action: DENY
  rules:
  - to:
    - operation:
        methods: ["GET"]
    when:
    - key: request.headers[x-token]
      notValues: ["admin"]
EOF
}

snip_explicitly_deny_a_request_5() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl "http://httpbin.foo:8000/get" -X GET -H "x-token: admin" -sS -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_explicitly_deny_a_request_5_out <<\ENDSNIP
200
ENDSNIP

snip_explicitly_deny_a_request_6() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl "http://httpbin.foo:8000/get" -X GET -H "x-token: guest" -sS -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_explicitly_deny_a_request_6_out <<\ENDSNIP
403
ENDSNIP

snip_explicitly_deny_a_request_7() {
kubectl apply -f - <<EOF
apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
  name: allow-path-ip
  namespace: foo
spec:
  selector:
    matchLabels:
      app: httpbin
  action: ALLOW
  rules:
  - to:
    - operation:
        paths: ["/ip"]
EOF
}

snip_explicitly_deny_a_request_8() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl "http://httpbin.foo:8000/ip" -X GET -H "x-token: guest" -s -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_explicitly_deny_a_request_8_out <<\ENDSNIP
403
ENDSNIP

snip_explicitly_deny_a_request_9() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl "http://httpbin.foo:8000/ip" -X GET -H "x-token: admin" -s -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_explicitly_deny_a_request_9_out <<\ENDSNIP
200
ENDSNIP

snip_explicitly_deny_a_request_10() {
kubectl exec "$(kubectl get pod -l app=sleep -n foo -o jsonpath={.items..metadata.name})" -c sleep -n foo -- curl "http://httpbin.foo:8000/get" -X GET -H "x-token: admin" -s -o /dev/null -w "%{http_code}\n"
}

! read -r -d '' snip_explicitly_deny_a_request_10_out <<\ENDSNIP
403
ENDSNIP

snip_clean_up_1() {
kubectl delete namespace foo
}