107 lines
3 KiB
Markdown
107 lines
3 KiB
Markdown
---
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title: Github
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---
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<span class="badge badge--primary">Support level: authentik</span>
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Allows users to authenticate using their Github credentials
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## Preparation
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The following placeholders will be used:
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- `authentik.company` is the FQDN of the authentik install.
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- `www.my.company` Homepage URL for your site
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## Github
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1. Create an OAuth app under Developer Settings https://github.com/settings/developers by clicking on the **Register a new application**
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2. **Application Name:** Choose a name users will recognize ie: authentik
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3. **Homepage URL**:: www.my.company
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4. **Authorization callback URL**: https://authentik.company/source/oauth/callback/github
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5. Click **Register Application**
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Example screenshot
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6. Copy the **Client ID** and _save it for later_
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7. Click **Generate a new client secret** and _save it for later_ You will not be able to see the secret again, so be sure to copy it now.
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## authentik
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8. Under _Directory -> Federation & Social login_ Click **Create Github OAuth Source**
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9. **Name**: Choose a name (For the example I use Github)
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10. **Slug**: github (If you choose a different slug the URLs will need to be updated to reflect the change)
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11. **Consumer Key:** Client ID from step 6
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12. **Consumer Secret:** Client Secret from step 7
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Here is an example of a complete authentik Github OAuth Source
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Save, and you now have Github as a source.
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:::note
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For more details on how-to have the new source display on the Login Page see [here](../).
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:::
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### Checking for membership of a GitHub Organisation
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:::info
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Requires authentik 2021.12.5.
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:::
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To check if the user is member of an organisation, you can use the following policy on your flows:
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:::info
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Make sure to include `read:org` in the sources' _Scopes_ setting.
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:::
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```python
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# Ensure flow is only run during oauth logins via Github
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if context["source"].provider_type != "github":
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return True
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accepted_org = "foo"
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# Get the user-source connection object from the context, and get the access token
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connection = context["goauthentik.io/sources/connection"]
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access_token = connection.access_token
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# We also access the user info authentik already retrieved, to get the correct username
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github_username = context["oauth_userinfo"]
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# Github does not include Organisations in the userinfo endpoint, so we have to call another URL
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orgs_response = requests.get(
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"https://api.github.com/user/orgs",
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auth=(github_username["login"], access_token),
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headers={
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"accept": "application/vnd.github.v3+json"
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}
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)
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orgs_response.raise_for_status()
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orgs = orgs_response.json()
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# `orgs` will be formatted like this
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# [
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# {
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# "login": "beryjuorg",
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# [...]
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# }
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# ]
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user_matched = any(org['login'] == accepted_org for org in orgs)
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if not user_matched:
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ak_message(f"User is not member of {accepted_org}.")
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return user_matched
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```
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If a user is not member of the chosen organisation, they will see this message
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