capifcore/main.go

   1 // -
   2 //   ========================LICENSE_START=================================
   3 //   O-RAN-SC
   4 //   %%
   5 //   Copyright (C) 2022: Nordix Foundation
   6 //   %%
   7 //   Licensed under the Apache License, Version 2.0 (the "License");
   8 //   you may not use this file except in compliance with the License.
   9 //   You may obtain a copy of the License at
  10 //
  11 //        http://www.apache.org/licenses/LICENSE-2.0
  12 //
  13 //   Unless required by applicable law or agreed to in writing, software
  14 //   distributed under the License is distributed on an "AS IS" BASIS,
  15 //   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 //   See the License for the specific language governing permissions and
  17 //   limitations under the License.
  18 //   ========================LICENSE_END===================================
  19 //
  20
  21 package main
  22
  23 import (
  24         "flag"
  25         "fmt"
  26         "net/http"
  27
  28         "github.com/getkin/kin-openapi/openapi3"
  29         "github.com/labstack/echo/v4"
  30         "helm.sh/helm/v3/pkg/cli"
  31         "oransc.org/nonrtric/capifcore/internal/common29122"
  32         "oransc.org/nonrtric/capifcore/internal/discoverserviceapi"
  33         "oransc.org/nonrtric/capifcore/internal/eventsapi"
  34         "oransc.org/nonrtric/capifcore/internal/invokermanagementapi"
  35         "oransc.org/nonrtric/capifcore/internal/keycloak"
  36         "oransc.org/nonrtric/capifcore/internal/providermanagementapi"
  37         "oransc.org/nonrtric/capifcore/internal/securityapi"
  38
  39         "github.com/deepmap/oapi-codegen/pkg/middleware"
  40         echomiddleware "github.com/labstack/echo/v4/middleware"
  41         log "github.com/sirupsen/logrus"
  42         config "oransc.org/nonrtric/capifcore/internal/config"
  43         "oransc.org/nonrtric/capifcore/internal/discoverservice"
  44         "oransc.org/nonrtric/capifcore/internal/eventservice"
  45         "oransc.org/nonrtric/capifcore/internal/helmmanagement"
  46         "oransc.org/nonrtric/capifcore/internal/invokermanagement"
  47         "oransc.org/nonrtric/capifcore/internal/providermanagement"
  48         "oransc.org/nonrtric/capifcore/internal/publishservice"
  49         "oransc.org/nonrtric/capifcore/internal/publishserviceapi"
  50         security "oransc.org/nonrtric/capifcore/internal/securityservice"
  51 )
  52
  53 var url string
  54 var helmManager helmmanagement.HelmManager
  55 var repoName string
  56
  57 func main() {
  58         var port = flag.Int("port", 8090, "Port for CAPIF Core Function HTTP server")
  59         var secPort = flag.Int("secPort", 4433, "Port for CAPIF Core Function HTTPS server")
  60         flag.StringVar(&url, "chartMuseumUrl", "", "ChartMuseum URL")
  61         flag.StringVar(&repoName, "repoName", "capifcore", "Repository name")
  62         var logLevelStr = flag.String("loglevel", "Info", "Log level")
  63         var certPath = flag.String("certPath", "certs/cert.pem", "Path for server certificate")
  64         var keyPath = flag.String("keyPath", "certs/key.pem", "Path for server private key")
  65
  66         flag.Parse()
  67
  68         if loglevel, err := log.ParseLevel(*logLevelStr); err == nil {
  69                 log.SetLevel(loglevel)
  70         }
  71
  72         // Add repo
  73         helmManager = helmmanagement.NewHelmManager(cli.New())
  74         err := helmManager.SetUpRepo(repoName, url)
  75         if err != nil {
  76                 log.Warnf("No Helm repo added due to: %s", err.Error())
  77         }
  78
  79         go startWebServer(getEcho(), *port)
  80         go startHttpsWebServer(getEcho(), *secPort, *certPath, *keyPath)
  81
  82         log.Info("Server started and listening on port: ", *port)
  83
  84         keepServerAlive()
  85 }
  86
  87 func getEcho() *echo.Echo {
  88         e := echo.New()
  89         // Log all requests
  90         e.Use(echomiddleware.Logger())
  91
  92         // Read configuration file
  93         cfg, err := config.ReadKeycloakConfigFile("configs")
  94         if err != nil {
  95                 log.Fatalf("Error loading configuration file\n: %s", err)
  96         }
  97         km := keycloak.NewKeycloakManager(cfg, &http.Client{})
  98
  99         var group *echo.Group
 100         // Register ProviderManagement
 101         providerManagerSwagger, err := providermanagementapi.GetSwagger()
 102         if err != nil {
 103                 log.Fatalf("Error loading ProviderManagement swagger spec\n: %s", err)
 104         }
 105         providerManagerSwagger.Servers = nil
 106         providerManager := providermanagement.NewProviderManager()
 107         group = e.Group("/api-provider-management/v1")
 108         group.Use(middleware.OapiRequestValidator(providerManagerSwagger))
 109         providermanagementapi.RegisterHandlersWithBaseURL(e, providerManager, "/api-provider-management/v1")
 110
 111         // Register EventService
 112         eventServiceSwagger, err := eventsapi.GetSwagger()
 113         if err != nil {
 114                 log.Fatalf("Error loading EventService swagger spec\n: %s", err)
 115         }
 116         eventServiceSwagger.Servers = nil
 117         eventService := eventservice.NewEventService(&http.Client{})
 118         group = e.Group("/capif-events/v1")
 119         group.Use(middleware.OapiRequestValidator(eventServiceSwagger))
 120         eventsapi.RegisterHandlersWithBaseURL(e, eventService, "/capif-events/v1")
 121         eventChannel := eventService.GetNotificationChannel()
 122
 123         // Register PublishService
 124         publishServiceSwagger, err := publishserviceapi.GetSwagger()
 125         if err != nil {
 126                 log.Fatalf("Error loading PublishService swagger spec\n: %s", err)
 127         }
 128         publishServiceSwagger.Servers = nil
 129         publishService := publishservice.NewPublishService(providerManager, helmManager, eventChannel)
 130         group = e.Group("/published-apis/v1")
 131         group.Use(middleware.OapiRequestValidator(publishServiceSwagger))
 132         publishserviceapi.RegisterHandlersWithBaseURL(e, publishService, "/published-apis/v1")
 133
 134         // Register InvokerManagement
 135         invokerManagerSwagger, err := invokermanagementapi.GetSwagger()
 136         if err != nil {
 137                 log.Fatalf("Error loading InvokerManagement swagger spec\n: %s", err)
 138         }
 139         invokerManagerSwagger.Servers = nil
 140         invokerManager := invokermanagement.NewInvokerManager(publishService, eventChannel)
 141         group = e.Group("/api-invoker-management/v1")
 142         group.Use(middleware.OapiRequestValidator(invokerManagerSwagger))
 143         invokermanagementapi.RegisterHandlersWithBaseURL(e, invokerManager, "/api-invoker-management/v1")
 144
 145         // Register DiscoverService
 146         discoverServiceSwagger, err := discoverserviceapi.GetSwagger()
 147         if err != nil {
 148                 log.Fatalf("Error loading DiscoverService swagger spec\n: %s", err)
 149         }
 150         discoverServiceSwagger.Servers = nil
 151         discoverService := discoverservice.NewDiscoverService(invokerManager)
 152         group = e.Group("/service-apis/v1")
 153         group.Use(middleware.OapiRequestValidator(discoverServiceSwagger))
 154         discoverserviceapi.RegisterHandlersWithBaseURL(e, discoverService, "/service-apis/v1")
 155
 156         // Register Security
 157         securitySwagger, err := securityapi.GetSwagger()
 158         if err != nil {
 159                 log.Fatalf("Error loading Security swagger spec\n: %s", err)
 160         }
 161         securitySwagger.Servers = nil
 162         securityService := security.NewSecurity(providerManager, publishService, invokerManager, km)
 163         group = e.Group("/capif-security/v1")
 164         group.Use(middleware.OapiRequestValidator(securitySwagger))
 165         securityapi.RegisterHandlersWithBaseURL(e, securityService, "/capif-security/v1")
 166
 167         e.GET("/", hello)
 168
 169         e.GET("/swagger/:apiName", getSwagger)
 170
 171         return e
 172 }
 173
 174 func startWebServer(e *echo.Echo, port int) {
 175         e.Logger.Fatal(e.Start(fmt.Sprintf("0.0.0.0:%d", port)))
 176 }
 177
 178 func startHttpsWebServer(e *echo.Echo, port int, certPath string, keyPath string) {
 179         e.Logger.Fatal(e.StartTLS(fmt.Sprintf("0.0.0.0:%d", port), certPath, keyPath))
 180 }
 181
 182 func keepServerAlive() {
 183         forever := make(chan int)
 184         <-forever
 185 }
 186
 187 func hello(c echo.Context) error {
 188         return c.String(http.StatusOK, "Hello, World!")
 189 }
 190
 191 func getSwagger(c echo.Context) error {
 192         var swagger *openapi3.T
 193         var err error
 194         switch api := c.Param("apiName"); api {
 195         case "provider":
 196                 swagger, err = providermanagementapi.GetSwagger()
 197         case "publish":
 198                 swagger, err = publishserviceapi.GetSwagger()
 199         case "invoker":
 200                 swagger, err = invokermanagementapi.GetSwagger()
 201         case "discover":
 202                 swagger, err = discoverserviceapi.GetSwagger()
 203         case "events":
 204                 swagger, err = eventsapi.GetSwagger()
 205         case "security":
 206                 swagger, err = securityapi.GetSwagger()
 207         default:
 208                 return c.JSON(http.StatusBadRequest, getProblemDetails("Invalid API name "+api, http.StatusBadRequest))
 209         }
 210         if err != nil {
 211                 return c.JSON(http.StatusInternalServerError, getProblemDetails("Unable to get swagger for API", http.StatusInternalServerError))
 212         }
 213         return c.JSON(http.StatusOK, swagger)
 214 }
 215
 216 func getProblemDetails(cause string, status int) common29122.ProblemDetails {
 217         return common29122.ProblemDetails{
 218                 Cause:  &cause,
 219                 Status: &status,
 220         }
 221 }