#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements.  See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
#
use t::APISIX 'no_plan';

log_level('debug');
repeat_each(1);
no_long_string();
no_root_location();
run_tests;

__DATA__

=== TEST 1: minimal valid configuration w/o discovery
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({
                                client_id = "foo",
                                token_endpoint = "https://host.domain/auth/realms/foo/protocol/openid-connect/token"
                            })
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
done
--- no_error_log
[error]



=== TEST 2: minimal valid configuration with discovery
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({
                                client_id = "foo",
                                discovery = "https://host.domain/auth/realms/foo/.well-known/uma2-configuration"
                            })
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
done
--- no_error_log
[error]



=== TEST 3: minimal valid configuration with audience
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({
                                audience = "foo",
                                discovery = "https://host.domain/auth/realms/foo/.well-known/uma2-configuration"
                            })
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
done
--- no_error_log
[error]



=== TEST 4: minimal valid configuration w/o discovery when lazy_load_paths=true
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({
                                client_id = "foo",
                                lazy_load_paths = true,
                                token_endpoint = "https://host.domain/auth/realms/foo/protocol/openid-connect/token",
                                resource_registration_endpoint = "https://host.domain/auth/realms/foo/authz/protection/resource_set"
                            })
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
done
--- no_error_log
[error]



=== TEST 5: minimal valid configuration with discovery when lazy_load_paths=true
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({
                                client_id = "foo",
                                lazy_load_paths = true,
                                discovery = "https://host.domain/auth/realms/foo/.well-known/uma2-configuration"
                            })
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
done
--- no_error_log
[error]



=== TEST 6: full schema check
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({
                                discovery = "https://host.domain/auth/realms/foo/.well-known/uma2-configuration",
                                token_endpoint = "https://host.domain/auth/realms/foo/protocol/openid-connect/token",
                                resource_registration_endpoint = "https://host.domain/auth/realms/foo/authz/protection/resource_set",
                                client_id = "University",
                                audience = "University",
                                client_secret = "secret",
                                grant_type = "urn:ietf:params:oauth:grant-type:uma-ticket",
                                policy_enforcement_mode = "ENFORCING",
                                permissions = {"res:customer#scopes:view"},
                                lazy_load_paths = false,
                                http_method_as_scope = false,
                                timeout = 1000,
                                ssl_verify = false,
                                cache_ttl_seconds = 1000,
                                keepalive = true,
                                keepalive_timeout = 10000,
                                keepalive_pool = 5
                            })
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
done
--- no_error_log
[error]



=== TEST 7: token_endpoint and discovery both missing
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({client_id = "foo"})
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
allOf 1 failed: object matches none of the requireds: ["discovery"] or ["token_endpoint"]
done
--- no_error_log
[error]



=== TEST 8: client_id and audience both missing
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({discovery = "https://host.domain/auth/realms/foo/.well-known/uma2-configuration"})
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
allOf 2 failed: object matches none of the requireds: ["client_id"] or ["audience"]
done
--- no_error_log
[error]



=== TEST 9: resource_registration_endpoint and discovery both missing and lazy_load_paths is true
--- config
    location /t {
        content_by_lua_block {
            local plugin = require("apisix.plugins.authz-keycloak")
            local ok, err = plugin.check_schema({
                                client_id = "foo",
                                token_endpoint = "https://host.domain/auth/realms/foo/protocol/openid-connect/token",
                                lazy_load_paths = true
                            })
            if not ok then
                ngx.say(err)
            end

            ngx.say("done")
        }
    }
--- request
GET /t
--- response_body
allOf 3 failed: object matches none of the requireds
done
--- no_error_log
[error]



=== TEST 10: Add https endpoint with ssl_verify true (default)
--- config
    location /t {
        content_by_lua_block {
            local t = require("lib.test_admin").test
            local code, body = t('/apisix/admin/routes/1',
                 ngx.HTTP_PUT,
                 [[{
                        "plugins": {
                            "authz-keycloak": {
                                "token_endpoint": "https://127.0.0.1:8443/auth/realms/University/protocol/openid-connect/token",
                                "permissions": ["course_resource#delete"],
                                "client_id": "course_management",
                                "grant_type": "urn:ietf:params:oauth:grant-type:uma-ticket",
                                "timeout": 3000
                            }
                        },
                        "upstream": {
                            "nodes": {
                                "127.0.0.1:1982": 1
                            },
                            "type": "roundrobin"
                        },
                        "uri": "/hello1"
                }]],
                [[{
                    "node": {
                        "value": {
                            "plugins": {
                                "authz-keycloak": {
                                    "token_endpoint": "https://127.0.0.1:8443/auth/realms/University/protocol/openid-connect/token",
                                    "permissions": ["course_resource#delete"],
                                    "client_id": "course_management",
                                    "grant_type": "urn:ietf:params:oauth:grant-type:uma-ticket",
                                    "timeout": 3000
                                }
                            },
                            "upstream": {
                                "nodes": {
                                    "127.0.0.1:1982": 1
                                },
                                "type": "roundrobin"
                            },
                            "uri": "/hello1"
                        },
                        "key": "/apisix/routes/1"
                    },
                    "action": "set"
                }]]
                )

            if code >= 300 then
                ngx.status = code
            end
            ngx.say(body)
        }
    }
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]



=== TEST 11: TEST with fake token and https endpoint
--- config
    location /t {
        content_by_lua_block {
            local http = require "resty.http"
            local httpc = http.new()
            local uri = "http://127.0.0.1:" .. ngx.var.server_port .. "/hello1"
            local res, err = httpc:request_uri(uri, {
                method = "GET",
                headers = {
                    ["Authorization"] = "Bearer " .. "fake access token",
                }
             })

            if res.status == 200 then
                ngx.say(true)
            else
                ngx.say(false)
            end
        }
    }
--- request
GET /t
--- response_body
false
--- error_log
Error while sending authz request to https://127.0.0.1:8443/auth/realms/University/protocol/openid-connect/token: 18: self signed certificate



=== TEST 12: Add https endpoint with ssl_verify false
--- config
    location /t {
        content_by_lua_block {
            local t = require("lib.test_admin").test
            local code, body = t('/apisix/admin/routes/1',
                 ngx.HTTP_PUT,
                 [[{
                        "plugins": {
                            "authz-keycloak": {
                                "token_endpoint": "https://127.0.0.1:8443/auth/realms/University/protocol/openid-connect/token",
                                "permissions": ["course_resource#delete"],
                                "client_id": "course_management",
                                "grant_type": "urn:ietf:params:oauth:grant-type:uma-ticket",
                                "timeout": 3000,
                                "ssl_verify": false
                            }
                        },
                        "upstream": {
                            "nodes": {
                                "127.0.0.1:1982": 1
                            },
                            "type": "roundrobin"
                        },
                        "uri": "/hello1"
                }]],
                [[{
                    "node": {
                        "value": {
                            "plugins": {
                                "authz-keycloak": {
                                    "token_endpoint": "https://127.0.0.1:8443/auth/realms/University/protocol/openid-connect/token",
                                    "permissions": ["course_resource#delete"],
                                    "client_id": "course_management",
                                    "grant_type": "urn:ietf:params:oauth:grant-type:uma-ticket",
                                    "timeout": 3000,
                                    "ssl_verify": false
                                }
                            },
                            "upstream": {
                                "nodes": {
                                    "127.0.0.1:1982": 1
                                },
                                "type": "roundrobin"
                            },
                            "uri": "/hello1"
                        },
                        "key": "/apisix/routes/1"
                    },
                    "action": "set"
                }]]
                )

            if code >= 300 then
                ngx.status = code
            end
            ngx.say(body)
        }
    }
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]



=== TEST 13: TEST for https based token verification with ssl_verify false
--- config
    location /t {
        content_by_lua_block {
            local http = require "resty.http"
            local httpc = http.new()
            local uri = "http://127.0.0.1:" .. ngx.var.server_port .. "/hello1"
            local res, err = httpc:request_uri(uri, {
                method = "GET",
                headers = {
                    ["Authorization"] = "Bearer " .. "fake access token",
                }
             })

            if res.status == 200 then
                ngx.say(true)
            else
                ngx.say(false)
            end
        }
    }
--- request
GET /t
--- response_body
false
--- error_log
Request denied: HTTP 401 Unauthorized. Body: {"error":"HTTP 401 Unauthorized"}