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mod_auth_oauth_external: Authenticate against an OAuth 2 provider But suddenly unsure whether this constitutes an OAuth "client" or something else? Resource server maybe?
author Kim Alvefur <zash@zash.se>
date Thu, 16 Mar 2023 12:45:22 +0100
parents
children 3390bb2f9f6c
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1 ---
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2 summary: Authenticate against an external OAuth 2 IdP
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3 labels:
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4 - Stage-Alpha
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5 ---
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6
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7 This module provides external authentication via an external [AOuth
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8 2](https://datatracker.ietf.org/doc/html/rfc7628) authorization server
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9 and supports the [SASL OAUTHBEARER authentication][rfc7628]
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10 mechanism.
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11
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12 # How it works
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13
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14 Clients retrieve tokens somehow, then show them to Prosody, which asks
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15 the Authorization server to validate them, returning info about the user
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16 back to Prosody.
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17
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18 # Configuration
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19
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20 `oauth_external_discovery_url`
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21 : Optional URL string pointing to [OAuth 2.0 Authorization Server
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22 Metadata](https://oauth.net/2/authorization-server-metadata/). Lets
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23 clients discover where they should retrieve access tokens from if
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24 they don't have one yet.
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25
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26 `oauth_external_validation_endpoint`
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27 : URL string. The token validation endpoint, should validate the token
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28 and return a JSON structure containing the username of the user
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29 logging in the field specified by `oauth_external_username_field`.
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30 Commonly the [OpenID `UserInfo`
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31 endpoint](https://openid.net/specs/openid-connect-core-1_0.html#UserInfo)
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32
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33 `oauth_external_username_field`
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34 : String. Default is `"preferred_username"`. Field in the JSON
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35 structure returned by the validation endpoint that contains the XMPP
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36 localpart.
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37
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38 # Compatibility
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39
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40 Version Status
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41 --------- ---------------
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42 trunk works
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43 0.12.x does not work
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44 0.11.x does not work