feat(provider): add Bitbucket provider

.github/ISSUE_TEMPLATE/2_bug_provider.yml

@@ -34,6 +34,7 @@ body:
         - "Azure DevOps"
         - "Battlenet"
         - "Beyond Identity"
+        - "Bitbucket"
         - "Box"
         - "Bungie"
         - "ClickUp"

docs/pages/data/manifest.json

@@ -60,6 +60,7 @@
     "azure-devops": "Azure DevOps",
     "battlenet": "Battle.net",
     "beyondidentity": "Beyond Identity",
+    "bitbucket": "Bitbucket",
     "box": "Box",
     "boxyhq-saml": "BoxyHQ SAML",
     "bungie": "Bungie",

docs/pages/getting-started/providers/bitbucket.mdx

@@ -0,0 +1,131 @@
+import { Callout } from "nextra/components"
+import { Code } from "@/components/Code"
+
+<img align="right" src="/img/providers/bitbucket.svg" height="64" width="64" />
+
+# Bitbucket Provider
+
+## Resources
+
+- [Using OAuth on Bitbucket Cloud](https://support.atlassian.com/bitbucket-cloud/docs/use-oauth-on-bitbucket-cloud/)
+- [Bitbucket REST API Authentication](https://developer.atlassian.com/cloud/bitbucket/rest/intro/#authentication)
+- [Bitbucket REST API Users](https://developer.atlassian.com/cloud/bitbucket/rest/api-group-users/#api-group-users)
+
+## Setup
+
+### Callback URL
+
+<Code>
+  <Code.Next>
+
+```bash
+https://example.com/api/auth/callback/bitbucket
+```
+
+  </Code.Next>
+  <Code.Qwik>
+
+```bash
+https://example.com/auth/callback/bitbucket
+```
+
+  </Code.Qwik>
+  <Code.Svelte>
+
+```bash
+https://example.com/auth/callback/bitbucket
+```
+
+  </Code.Svelte>
+</Code>
+
+### Environment Variables
+
+<Code>
+  <Code.Next>
+
+```bash filename=".env.local"
+AUTH_BITBUCKET_ID
+AUTH_BITBUCKET_SECRET
+```
+
+  </Code.Next>
+  <Code.Qwik>
+
+```bash filename=".env"
+AUTH_BITBUCKET_ID
+AUTH_BITBUCKET_SECRET
+```
+
+  </Code.Qwik>
+  <Code.Svelte>
+
+```bash filename=".env"
+AUTH_BITBUCKET_ID
+AUTH_BITBUCKET_SECRET
+```
+
+  </Code.Svelte>
+
+    <Code.Express>
+
+```bash filename=".env"
+AUTH_BITBUCKET_ID
+AUTH_BITBUCKET_SECRET
+```
+
+  </Code.Express>
+</Code>
+
+### Configuration
+
+<Code>
+  <Code.Next>
+
+```ts filename="@/auth.ts"
+import NextAuth from "next-auth"
+import Bitbucket from "next-auth/providers/bitbucket"
+
+export const { handlers, auth, signIn, signOut } = NextAuth({
+  providers: [Bitbucket],
+})
+```
+
+  </Code.Next>
+  <Code.Qwik>
+
+```ts filename="/src/routes/plugin@auth.ts"
+import { QwikAuth$ } from "@auth/qwik"
+import Bitbucket from "@auth/qwik/providers/bitbucket"
+
+export const { onRequest, useSession, useSignIn, useSignOut } = QwikAuth$(
+  () => ({
+    providers: [Bitbucket],
+  })
+)
+```
+
+  </Code.Qwik>
+  <Code.Svelte>
+
+```ts filename="/src/auth.ts"
+import { SvelteKitAuth } from "@auth/sveltekit"
+import Bitbucket from "@auth/sveltekit/providers/bitbucket"
+
+export const { handle, signIn, signOut } = SvelteKitAuth({
+  providers: [Bitbucket],
+})
+```
+
+  </Code.Svelte>
+  <Code.Express>
+
+```ts filename="/src/app.ts"
+import { ExpressAuth } from "@auth/express"
+import Bitbucket from "@auth/express/providers/bitbucket"
+
+app.use("/auth/*", ExpressAuth({ providers: [Bitbucket] }))
+```
+
+  </Code.Express>
+</Code>

packages/core/src/providers/bitbucket.ts

@@ -0,0 +1,122 @@
+/**
+ * <div class="provider" style={{ display: "flex", justifyContent: "space-between", color: "#fff" }}>
+ * <span>Built-in <b>Bitbucket</b> integration.</span>
+ * <a href="https://bitbucket.org">
+ *   <img style={{display: "block"}} src="https://authjs.dev/img/providers/bitbucket.svg" height="48" width="48"/>
+ * </a>
+ * </div>
+ *
+ * @module providers/bitbucket
+ */
+
+import { OAuthConfig, OAuthUserConfig } from "./index.js"
+
+type LiteralUnion<T extends U, U = string> = T | (U & Record<never, never>)
+
+/**
+ * @see https://developer.atlassian.com/cloud/bitbucket/rest/api-group-users/#api-user-get
+ */
+export interface BitbucketProfile {
+  display_name: string
+  links: Record<
+    LiteralUnion<
+      "self" | "avatar" | "repositories" | "snippets" | "html" | "hooks"
+    >,
+    { href?: string }
+  >
+  created_on: string
+  type: string
+  uuid: string
+  has_2fa_enabled: boolean | null
+  username: string
+  is_staff: boolean
+  account_id: string
+  nickname: string
+  account_status: string
+  location: string | null
+}
+
+/**
+ *
+ * ### Setup
+ *
+ * #### Callback URL
+ *
+ * ```ts
+ * https://example.com/api/auth/callback/bitbucket
+ * ```
+ *
+ * #### Configuration
+ *
+ * ```ts
+ * import { Auth } from "@auth/core"
+ * import Bitbucket from "@auth/core/providers/bitbucket"
+ *
+ * const request = new Request(origin)
+ * const response = await Auth(request, {
+ *   providers: [
+ *     Bitbucket({
+ *       clientId: process.env.BITBUCKET_CLIENT_ID,
+ *       clientSecret: process.env.BITBUCKET_CLIENT_SECRET,
+ *     })
+ *   ],
+ * })
+ * ```
+ *
+ * #### Resources
+ *
+ * - [Using OAuth on Bitbucket Cloud](https://support.atlassian.com/bitbucket-cloud/docs/use-oauth-on-bitbucket-cloud/)
+ * - [Bitbucket REST API Authentication](https://developer.atlassian.com/cloud/bitbucket/rest/intro/#authentication)
+ * - [Bitbucket REST API Users](https://developer.atlassian.com/cloud/bitbucket/rest/api-group-users/#api-group-users)
+ *
+ *  #### Notes
+ *
+ * By default, Auth.js assumes that the Bitbucket provider is
+ * based on the [OAuth 2](https://www.rfc-editor.org/rfc/rfc6749.html) specification.
+ *
+ * :::tip
+ *
+ * The Bitbucket provider comes with a [default configuration](https://github.com/nextauthjs/next-auth/blob/main/packages/core/src/providers/bitbucket.ts).
+ * To override the defaults for your use case, check out [customizing a built-in OAuth provider](https://authjs.dev/guides/configuring-oauth-providers).
+ *
+ * :::
+ *
+ * :::info **Disclaimer**
+ *
+ * If you think you found a bug in the default configuration, you can [open an issue](https://authjs.dev/new/provider-issue).
+ *
+ * Auth.js strictly adheres to the specification and it cannot take responsibility for any deviation from
+ * the spec by the provider. You can open an issue, but if the problem is non-compliance with the spec,
+ * we might not pursue a resolution. You can ask for more help in [Discussions](https://authjs.dev/new/github-discussions).
+ *
+ * :::
+ */
+export default function Bitbucket(
+  options: OAuthUserConfig<BitbucketProfile>
+): OAuthConfig<BitbucketProfile> {
+  return {
+    id: "bitbucket",
+    name: "Bitbucket",
+    type: "oauth",
+    authorization: {
+      url: "https://bitbucket.org/site/oauth2/authorize",
+      params: {
+        scope: "account",
+      },
+    },
+    token: "https://bitbucket.org/site/oauth2/access_token",
+    userinfo: "https://api.bitbucket.org/2.0/user",
+    profile(profile) {
+      return {
+        name: profile.display_name ?? profile.username,
+        id: profile.account_id,
+        image: profile.links.avatar?.href,
+      }
+    },
+    options,
+    style: {
+      text: "#fff",
+      bg: "#205081",
+    },
+  }
+}