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103 lines
2.4 KiB
Markdown
103 lines
2.4 KiB
Markdown
title: OAuth2 API
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<p class="alert alert-warning">
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The OAuth2 applications API is currently experimental, and may break without notice.
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</p>
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ContentDB allows you to create an OAuth2 Application and obtain access tokens
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for users.
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## Scopes
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OAuth2 applications can currently only access public user data, using the whoami API.
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## Create an OAuth2 Client
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Go to Settings > [OAuth2 Applications](/user/apps/) > Create
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## Obtaining access tokens
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ContentDB supports the Authorization Code OAuth2 method.
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### Authorize
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Get the user to open the following URL in a web browser:
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```
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https://content.minetest.net/oauth/authorize/
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?response_type=code
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&client_id={CLIENT_ID}
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&redirect_uri={REDIRECT_URL}
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```
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The redirect_url must much the value set in your oauth client. Make sure to URL encode it.
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ContentDB also supports `state`.
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Afterwards, the user will be redirected to your callback URL.
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If the user accepts the authorization, you'll receive an authorization code (`code`).
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Otherwise, the redirect_url will not be modified.
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For example, with `REDIRECT_URL` set as `https://example.com/callback/`:
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* If the user accepts: `https://example.com/callback/?code=abcdef`
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* If the user cancels: `https://example.com/callback/`
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### Exchange auth code for access token
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Next, you'll need to exchange the auth for an access token.
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Do this by making a POST request to the `/oauth/token/` API:
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```bash
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curl -X POST https://content.minetest.net/oauth/token/ \
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-F grant_type=authorization_code \
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-F client_id="CLIENT_ID" \
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-F client_secret="CLIENT_SECRET" \
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-F code="abcdef"
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```
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<p class="alert alert-warning">
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<i class="fas fa-exclamation-circle me-2"></i>
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You should make this request on a server to prevent the user
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from getting access to your client secret.
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</p>
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If successful, you'll receive:
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```json
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{
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"access_token": "access_token",
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"token_type": "Bearer"
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}
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```
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If there's an error, you'll receive a standard API error message:
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```json
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{
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"success": false,
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"error": "The error message"
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}
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```
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Possible errors:
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* Unsupported grant_type, only authorization_code is supported
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* Missing client_id
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* Missing client_secret
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* Missing code
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* client_id and/or client_secret is incorrect
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* Incorrect code. It may have already been redeemed
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### Check access token
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Next, you should check the access token works by getting the user information:
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```bash
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curl https://content.minetest.net/api/whoami/ \
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-H "Authorization: Bearer YOURTOKEN"
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```
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