구글 로그인 추가

src/main/kotlin/kr/co/vividnext/sodalive/member/social/SocialLoginResponse.kt

@@ -0,0 +1,9 @@
+package kr.co.vividnext.sodalive.member.social
+
+import kr.co.vividnext.sodalive.member.login.LoginResponse
+
+data class SocialLoginResponse(
+    val memberId: Long,
+    val marketingPid: String?,
+    val loginResponse: LoginResponse
+)

src/main/kotlin/kr/co/vividnext/sodalive/member/social/google/GoogleAuthService.kt

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+package kr.co.vividnext.sodalive.member.social.google
+
+import kr.co.vividnext.sodalive.common.SodaException
+import kr.co.vividnext.sodalive.jwt.TokenProvider
+import kr.co.vividnext.sodalive.member.MemberAdapter
+import kr.co.vividnext.sodalive.member.MemberService
+import kr.co.vividnext.sodalive.member.login.LoginResponse
+import kr.co.vividnext.sodalive.member.social.SocialLoginResponse
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.security.core.context.SecurityContextHolder
+import org.springframework.stereotype.Service
+
+@Service
+class GoogleAuthService(
+    private val googleService: GoogleService,
+    private val memberService: MemberService,
+    private val tokenProvider: TokenProvider,
+
+    @Value("\${cloud.aws.cloud-front.host}")
+    private val cloudFrontHost: String
+) {
+    fun authenticate(idToken: String, container: String, marketingPid: String?): SocialLoginResponse {
+        val googleUserInfo = googleService.getUserInfo(idToken)
+            ?: throw SodaException("구글 로그인을 하지 못했습니다. 다시 시도해 주세요")
+        val member = memberService.findOrRegister(googleUserInfo, container, marketingPid)
+        val principal = MemberAdapter(member)
+        val authToken = GoogleAuthenticationToken(idToken, principal.authorities)
+        authToken.setPrincipal(principal)
+        SecurityContextHolder.getContext().authentication = authToken
+
+        val jwt = tokenProvider.createToken(
+            authentication = authToken,
+            memberId = member.id!!
+        )
+
+        val loginResponse = LoginResponse(
+            userId = member.id!!,
+            token = jwt,
+            nickname = member.nickname,
+            email = member.email,
+            profileImage = if (member.profileImage != null) {
+                "$cloudFrontHost/${member.profileImage}"
+            } else {
+                "$cloudFrontHost/profile/default-profile.png"
+            }
+        )
+
+        return SocialLoginResponse(
+            memberId = member.id!!,
+            marketingPid = marketingPid,
+            loginResponse = loginResponse
+        )
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/member/social/google/GoogleAuthenticationToken.kt

@@ -0,0 +1,15 @@
+package kr.co.vividnext.sodalive.member.social.google
+
+import org.springframework.security.authentication.AbstractAuthenticationToken
+import org.springframework.security.core.GrantedAuthority
+
+class GoogleAuthenticationToken(
+    private val idToken: String,
+    authorities: Collection<GrantedAuthority>? = null
+) : AbstractAuthenticationToken(authorities) {
+    private var principal: Any? = null
+    init { isAuthenticated = authorities != null }
+    override fun getCredentials(): Any = idToken
+    override fun getPrincipal(): Any? = principal
+    fun setPrincipal(principal: Any) { this.principal = principal }
+}

src/main/kotlin/kr/co/vividnext/sodalive/member/social/google/GoogleService.kt

@@ -0,0 +1,45 @@
+package kr.co.vividnext.sodalive.member.social.google
+
+import com.google.api.client.googleapis.auth.oauth2.GoogleIdTokenVerifier
+import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport
+import com.google.api.client.json.gson.GsonFactory
+import kr.co.vividnext.sodalive.common.SodaException
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.stereotype.Service
+
+@Service
+class GoogleService(
+    @Value("\${google.web-client-id}")
+    private val googleWebClientId: String
+) {
+    private val transport = GoogleNetHttpTransport.newTrustedTransport()
+    private val jsonFactory = GsonFactory.getDefaultInstance()
+    private val clientIds = listOf(googleWebClientId)
+
+    fun getUserInfo(idToken: String): GoogleUserInfo? {
+        val verifier = GoogleIdTokenVerifier.Builder(transport, jsonFactory)
+            .setAudience(clientIds)
+            .setIssuers(listOf("accounts.google.com", "https://accounts.google.com"))
+            .build()
+
+        return try {
+            val token = verifier.verify(idToken)
+
+            if (token != null) {
+                val payload = token.payload
+                val email = payload.email ?: throw SodaException("이메일 제공에 동의하셔야 서비스 이용이 가능합니다.")
+
+                GoogleUserInfo(
+                    sub = payload.subject,
+                    email = email,
+                    name = payload["name"] as? String
+                )
+            } else {
+                null
+            }
+        } catch (e: Exception) {
+            e.printStackTrace()
+            null
+        }
+    }
+}

src/main/kotlin/kr/co/vividnext/sodalive/member/social/google/GoogleUserInfo.kt

@@ -0,0 +1,7 @@
+package kr.co.vividnext.sodalive.member.social.google
+
+data class GoogleUserInfo(
+    val sub: String,
+    val email: String,
+    val name: String?
+)