CID-3369: Validate permissions on each organisation before scanning

src/main/kotlin/net/leanix/githubagent/client/GitHubClient.kt

@@ -30,6 +30,12 @@ interface GitHubClient {
     @GetMapping("/api/v3/app/installations")
     fun getInstallations(@RequestHeader("Authorization") jwt: String): List<Installation>
 
+    @GetMapping("/api/v3/app/installations/{installationId}")
+    fun getInstallation(
+        @PathVariable("installationId") installationId: Long,
+        @RequestHeader("Authorization") jwt: String
+    ): Installation
+
     @PostMapping("/api/v3/app/installations/{installationId}/access_tokens")
     fun createInstallationToken(
         @PathVariable("installationId") installationId: Long,

src/main/kotlin/net/leanix/githubagent/dto/GitHubResponsesDto.kt

@@ -14,7 +14,9 @@ data class InstallationTokenResponse(
 @JsonIgnoreProperties(ignoreUnknown = true)
 data class Installation(
     @JsonProperty("id") val id: Long,
-    @JsonProperty("account") val account: Account
+    @JsonProperty("account") val account: Account,
+    @JsonProperty("permissions") val permissions: Map<String, String>,
+    @JsonProperty("events") val events: List<String>
 )
 
 @JsonIgnoreProperties(ignoreUnknown = true)

src/main/kotlin/net/leanix/githubagent/services/GitHubEnterpriseService.kt

@@ -1,14 +1,17 @@
 package net.leanix.githubagent.services
 
 import net.leanix.githubagent.client.GitHubClient
-import net.leanix.githubagent.dto.GitHubAppResponse
 import net.leanix.githubagent.exceptions.GitHubAppInsufficientPermissionsException
 import net.leanix.githubagent.exceptions.UnableToConnectToGitHubEnterpriseException
+import net.leanix.githubagent.shared.GITHUB_APP_LABEL
 import org.slf4j.LoggerFactory
 import org.springframework.stereotype.Service
 
 @Service
-class GitHubEnterpriseService(private val githubClient: GitHubClient) {
+class GitHubEnterpriseService(
+    private val githubClient: GitHubClient,
+    private val syncLogService: SyncLogService,
+) {
 
     companion object {
         val expectedPermissions = listOf("administration", "contents", "metadata")
@@ -19,29 +22,34 @@ class GitHubEnterpriseService(private val githubClient: GitHubClient) {
     fun verifyJwt(jwt: String) {
         runCatching {
             val githubApp = getGitHubApp(jwt)
-            validateGithubAppResponse(githubApp)
+            validateEnabledPermissionsAndEvents(GITHUB_APP_LABEL, githubApp.permissions, githubApp.events)
             logger.info("Authenticated as GitHub App: '${githubApp.slug}'")
         }.onFailure {
-            logger.error("Failed to verify JWT token", it)
             when (it) {
-                is GitHubAppInsufficientPermissionsException -> throw it
-                else -> throw UnableToConnectToGitHubEnterpriseException("Failed to verify JWT token")
+                is GitHubAppInsufficientPermissionsException -> {
+                    syncLogService.sendErrorLog(it.message!!)
+                    logger.error(it.message)
+                }
+                else -> {
+                    logger.error("Failed to verify JWT token", it)
+                    throw UnableToConnectToGitHubEnterpriseException("Failed to verify JWT token")
+                }
             }
         }
     }
 
-    fun validateGithubAppResponse(response: GitHubAppResponse) {
-        val missingPermissions = expectedPermissions.filterNot { response.permissions.containsKey(it) }
-        val missingEvents = expectedEvents.filterNot { response.events.contains(it) }
+    fun validateEnabledPermissionsAndEvents(type: String, permissions: Map<String, String>, events: List<String>) {
+        val missingPermissions = expectedPermissions.filterNot { permissions.containsKey(it) }
+        val missingEvents = expectedEvents.filterNot { events.contains(it) }
 
         if (missingPermissions.isNotEmpty() || missingEvents.isNotEmpty()) {
-            var message = "GitHub App is missing the following "
+            var message = "$type missing the following "
             if (missingPermissions.isNotEmpty()) {
                 message = message.plus("permissions: $missingPermissions")
             }
             if (missingEvents.isNotEmpty()) {
                 if (missingPermissions.isNotEmpty()) {
-                    message = message.plus(", and the following")
+                    message = message.plus(", and the following ")
                 }
                 message = message.plus("events: $missingEvents")
             }

src/main/kotlin/net/leanix/githubagent/services/GitHubScanningService.kt

@@ -8,9 +8,11 @@ import net.leanix.githubagent.dto.ManifestFilesDTO
 import net.leanix.githubagent.dto.Organization
 import net.leanix.githubagent.dto.OrganizationDto
 import net.leanix.githubagent.dto.RepositoryDto
+import net.leanix.githubagent.exceptions.GitHubAppInsufficientPermissionsException
 import net.leanix.githubagent.exceptions.JwtTokenNotFound
 import net.leanix.githubagent.exceptions.ManifestFileNotFoundException
 import net.leanix.githubagent.handler.RateLimitHandler
+import net.leanix.githubagent.shared.INSTALLATION_LABEL
 import net.leanix.githubagent.shared.MANIFEST_FILE_NAME
 import net.leanix.githubagent.shared.fileNameMatchRegex
 import net.leanix.githubagent.shared.generateFullPath
@@ -26,6 +28,7 @@ class GitHubScanningService(
     private val gitHubAuthenticationService: GitHubAuthenticationService,
     private val syncLogService: SyncLogService,
     private val rateLimitHandler: RateLimitHandler,
+    private val gitHubEnterpriseService: GitHubEnterpriseService,
 ) {
 
     private val logger = LoggerFactory.getLogger(GitHubScanningService::class.java)
@@ -35,11 +38,30 @@ class GitHubScanningService(
         val installations = getInstallations(jwtToken.toString())
         fetchAndSendOrganisationsData(installations)
         installations.forEach { installation ->
-            fetchAndSendRepositoriesData(installation)
-                .forEach { repository ->
-                    fetchManifestFilesAndSend(installation, repository)
+            kotlin.runCatching {
+                gitHubEnterpriseService.validateEnabledPermissionsAndEvents(
+                    INSTALLATION_LABEL,
+                    installation.permissions,
+                    installation.events
+                )
+                fetchAndSendRepositoriesData(installation)
+                    .forEach { repository ->
+                        fetchManifestFilesAndSend(installation, repository)
+                    }
+                syncLogService.sendInfoLog("Finished initial full scan for organization ${installation.account.login}.")
+            }.onFailure {
+                val message = "Failed to scan organization ${installation.account.login}."
+                when (it) {
+                    is GitHubAppInsufficientPermissionsException -> {
+                        syncLogService.sendErrorLog("$message ${it.message}")
+                        logger.error("$message ${it.message}")
+                    }
+                    else -> {
+                        syncLogService.sendErrorLog(message)
+                        logger.error(message, it)
+                    }
                 }
-            syncLogService.sendInfoLog("Finished initial full scan for organization ${installation.account.login}.")
+            }
         }
         syncLogService.sendInfoLog("Finished full scan for all available organizations.")
     }

src/main/kotlin/net/leanix/githubagent/services/WebhookEventService.kt

@@ -2,13 +2,14 @@ package net.leanix.githubagent.services
 
 import com.fasterxml.jackson.module.kotlin.jacksonObjectMapper
 import com.fasterxml.jackson.module.kotlin.readValue
-import net.leanix.githubagent.dto.Account
-import net.leanix.githubagent.dto.Installation
+import net.leanix.githubagent.client.GitHubClient
 import net.leanix.githubagent.dto.InstallationEventPayload
 import net.leanix.githubagent.dto.ManifestFileAction
 import net.leanix.githubagent.dto.ManifestFileUpdateDto
 import net.leanix.githubagent.dto.PushEventCommit
 import net.leanix.githubagent.dto.PushEventPayload
+import net.leanix.githubagent.exceptions.JwtTokenNotFound
+import net.leanix.githubagent.shared.INSTALLATION_LABEL
 import net.leanix.githubagent.shared.MANIFEST_FILE_NAME
 import net.leanix.githubagent.shared.fileNameMatchRegex
 import net.leanix.githubagent.shared.generateFullPath
@@ -24,7 +25,9 @@ class WebhookEventService(
     private val gitHubAuthenticationService: GitHubAuthenticationService,
     private val gitHubScanningService: GitHubScanningService,
     private val syncLogService: SyncLogService,
-    @Value("\${webhookEventService.waitingTime}") private val waitingTime: Long
+    @Value("\${webhookEventService.waitingTime}") private val waitingTime: Long,
+    private val gitHubClient: GitHubClient,
+    private val gitHubEnterpriseService: GitHubEnterpriseService
 ) {
 
     private val logger = LoggerFactory.getLogger(WebhookEventService::class.java)
@@ -77,9 +80,15 @@ class WebhookEventService(
         }
         syncLogService.sendFullScanStart(installationEventPayload.installation.account.login)
         kotlin.runCatching {
-            val installation = Installation(
+            val jwtToken = cachingService.get("jwtToken") ?: throw JwtTokenNotFound()
+            val installation = gitHubClient.getInstallation(
                 installationEventPayload.installation.id.toLong(),
-                Account(installationEventPayload.installation.account.login)
+                "Bearer $jwtToken"
+            )
+            gitHubEnterpriseService.validateEnabledPermissionsAndEvents(
+                INSTALLATION_LABEL,
+                installation.permissions,
+                installation.events
             )
             gitHubAuthenticationService.refreshTokens()
             gitHubScanningService.fetchAndSendRepositoriesData(installation).forEach { repository ->

src/main/kotlin/net/leanix/githubagent/shared/Constants.kt

@@ -13,3 +13,6 @@ val SUPPORTED_EVENT_TYPES = listOf(
 )
 
 val fileNameMatchRegex = Regex("/?$MANIFEST_FILE_NAME\$")
+
+const val GITHUB_APP_LABEL = "GitHub App"
+const val INSTALLATION_LABEL = "Installation"

src/test/kotlin/net/leanix/githubagent/services/GitHubEnterpriseServiceTest.kt

@@ -6,14 +6,22 @@ import net.leanix.githubagent.client.GitHubClient
 import net.leanix.githubagent.dto.GitHubAppResponse
 import net.leanix.githubagent.exceptions.GitHubAppInsufficientPermissionsException
 import net.leanix.githubagent.exceptions.UnableToConnectToGitHubEnterpriseException
+import net.leanix.githubagent.shared.GITHUB_APP_LABEL
 import org.junit.jupiter.api.Assertions.assertThrows
+import org.junit.jupiter.api.BeforeEach
 import org.junit.jupiter.api.Test
 import org.junit.jupiter.api.assertDoesNotThrow
 
 class GitHubEnterpriseServiceTest {
 
     private val githubClient = mockk<GitHubClient>()
-    private val service = GitHubEnterpriseService(githubClient)
+    private val syncLogService = mockk<SyncLogService>()
+    private val service = GitHubEnterpriseService(githubClient, syncLogService)
+
+    @BeforeEach
+    fun setUp() {
+        every { syncLogService.sendErrorLog(any()) } returns Unit
+    }
 
     @Test
     fun `verifyJwt with valid jwt should not throw exception`() {
@@ -44,7 +52,9 @@ class GitHubEnterpriseServiceTest {
             events = listOf("label", "public", "repository", "push", "installation")
         )
 
-        assertDoesNotThrow { service.validateGithubAppResponse(response) }
+        assertDoesNotThrow {
+            service.validateEnabledPermissionsAndEvents(GITHUB_APP_LABEL, response.permissions, response.events)
+        }
     }
 
     @Test
@@ -57,7 +67,7 @@ class GitHubEnterpriseServiceTest {
 
         assertThrows(
             GitHubAppInsufficientPermissionsException::class.java
-        ) { service.validateGithubAppResponse(response) }
+        ) { service.validateEnabledPermissionsAndEvents(GITHUB_APP_LABEL, response.permissions, response.events) }
     }
 
     @Test
@@ -70,6 +80,6 @@ class GitHubEnterpriseServiceTest {
 
         assertThrows(
             GitHubAppInsufficientPermissionsException::class.java
-        ) { service.validateGithubAppResponse(response) }
+        ) { service.validateEnabledPermissionsAndEvents(GITHUB_APP_LABEL, response.permissions, response.events) }
     }
 }

src/test/kotlin/net/leanix/githubagent/services/GitHubScanningServiceTest.kt

@@ -1,7 +1,9 @@
 package net.leanix.githubagent.services
 
 import io.mockk.every
+import io.mockk.just
 import io.mockk.mockk
+import io.mockk.runs
 import io.mockk.slot
 import io.mockk.verify
 import net.leanix.githubagent.client.GitHubClient
@@ -34,22 +36,24 @@ class GitHubScanningServiceTest {
     private val gitHubAuthenticationService = mockk<GitHubAuthenticationService>()
     private val syncLogService = mockk<SyncLogService>(relaxUnitFun = true)
     private val rateLimitHandler = mockk<RateLimitHandler>(relaxUnitFun = true)
+    private val gitHubEnterpriseService = mockk<GitHubEnterpriseService>(relaxUnitFun = true)
     private val gitHubScanningService = GitHubScanningService(
         gitHubClient,
         cachingService,
         webSocketService,
         gitHubGraphQLService,
         gitHubAuthenticationService,
         syncLogService,
-        rateLimitHandler
+        rateLimitHandler,
+        gitHubEnterpriseService,
     )
     private val runId = UUID.randomUUID()
 
     @BeforeEach
     fun setup() {
         every { cachingService.get(any()) } returns "value"
         every { gitHubClient.getInstallations(any()) } returns listOf(
-            Installation(1, Account("testInstallation"))
+            Installation(1, Account("testInstallation"), mapOf(), listOf())
         )
         every { gitHubClient.createInstallationToken(1, any()) } returns
             InstallationTokenResponse("testToken", "2024-01-01T00:00:00Z", mapOf(), "all")
@@ -66,6 +70,7 @@ class GitHubScanningServiceTest {
         every { syncLogService.sendInfoLog(any()) } returns Unit
         every { rateLimitHandler.executeWithRateLimitHandler(any<() -> Any>()) } answers
             { firstArg<() -> Any>().invoke() }
+        every { gitHubEnterpriseService.validateEnabledPermissionsAndEvents(any(), any(), any()) } just runs
     }
 
     @Test