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Downloads/Voltaserve/webdav/src/client/idp.ts

@@ -0,0 +1,66 @@
+import { IDP_URL } from '@/config'
+
+export type IdPErrorResponse = {
+  code: string
+  status: number
+  message: string
+  userMessage: string
+  moreInfo: string
+}
+
+export class IdPError extends Error {
+  constructor(readonly error: IdPErrorResponse) {
+    super(JSON.stringify(error, null, 2))
+  }
+}
+
+export type Token = {
+  access_token: string
+  expires_in: number
+  token_type: string
+  refresh_token: string
+}
+
+export type TokenGrantType = 'password' | 'refresh_token'
+
+export type TokenExchangeOptions = {
+  grant_type: TokenGrantType
+  username?: string
+  password?: string
+  refresh_token?: string
+  locale?: string
+}
+
+export class TokenAPI {
+  async exchange(options: TokenExchangeOptions): Promise<Token> {
+    const formBody = []
+    formBody.push(`grant_type=${options.grant_type}`)
+    formBody.push(`username=${encodeURIComponent(options.username)}`)
+    formBody.push(`password=${encodeURIComponent(options.password)}`)
+    if (options.refresh_token) {
+      formBody.push(`refresh_token=${options.refresh_token}`)
+    }
+    const response = await fetch(`${IDP_URL}/v1/token`, {
+      method: 'POST',
+      body: formBody.join('&'),
+      headers: {
+        'Content-Type': 'application/x-www-form-urlencoded',
+      },
+    })
+    return this.jsonResponseOrThrow(response)
+  }
+
+  private async jsonResponseOrThrow<T>(response: Response): Promise<T> {
+    if (response.headers.get('content-type')?.includes('application/json')) {
+      const json = await response.json()
+      if (response.status > 299) {
+        throw new IdPError(json)
+      }
+      return json
+    } else {
+      if (response.status > 299) {
+        throw new Error(response.statusText)
+      }
+    }
+  }
+}