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-rw-r--r-- | docs/guides/auth/saml.md | 83 |
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diff --git a/docs/guides/auth/saml.md b/docs/guides/auth/saml.md new file mode 100644 index 00000000..9a516675 --- /dev/null +++ b/docs/guides/auth/saml.md @@ -0,0 +1,83 @@ +Authentication guide - SAML +=== + +The basic procedure is the same as the case of OneLogin which is mentioned in [OneLogin-Guide](./saml-onelogin.md). If you want to match your IdP, you can use more configurations as below. + +* If your IdP accepts metadata XML of the service provider to ease configuraion, use this url to download metadata XML. + * {{your-serverurl}}/auth/saml/metadata + * _Note: If not accessable from IdP, download to local once and upload to IdP._ +* Change the value of `issuer`, `identifierFormat` to match your IdP. + * `issuer`: A unique id to identify the application to the IdP, which is the base URL of your HackMD as default + * `identifierFormat`: A format of unique id to identify the user of IdP, which is the format based on email address as default. It is recommend that you use as below. + * urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress (default) + * urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified + * config.json: + ````javascript + { + "production": { + "saml": { + /* omitted */ + "issuer": "myhackmd" + "identifierFormat": "urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified" + } + } + } + ```` + * environment variables + ```` + HMD_SAML_ISSUER=myhackmd + HMD_SAML_IDENTIFIERFORMAT=urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified + ```` + +* Change mapping of attribute names to customize the displaying user name and email address to match your IdP. + * `attribute`: A dictionary to map attribute names + * `attribute.id`: A primary key of user table for your HackMD + * `attribute.username`: Attribute name of displaying user name on HackMD + * `attribute.email`: Attribute name of email address, which will be also used for Gravatar + * _Note: Default value of all attributes is NameID of SAML response, which is email address if `identifierFormat` is default._ + * config.json: + ````javascript + { + "production": { + "saml": { + /* omitted */ + "attribute": { + "id": "sAMAccountName", + "username": "displayName", + "email": "mail" + } + } + } + } + ```` + * environment variables + ```` + HMD_SAML_ATTRIBUTE_ID=sAMAccountName + HMD_SAML_ATTRIBUTE_USERNAME=nickName + HMD_SAML_ATTRIBUTE_EMAIL=mail + ```` + +* If you want to controll permission by group membership, add group attribute name and required group (allowed) or external group (not allowed). + * `groupAttribute`: An attribute name of group membership + * `requiredGroups`: Group names array for allowed access to HackMD. Use vertical bar to separate for environment variables. + * `externalGroups`: Group names array for not allowed access to HackMD. Use vertical bar to separate for environment variables. + * _Note: Evaluates `externalGroups` first_ + * config.json: + ````javascript + { + "production": { + "saml": { + /* omitted */ + "groupAttribute": "memberOf", + "requiredGroups": [ "hackmd-users", "board-members" ], + "externalGroups": [ "temporary-staff" ] + } + } + } + ```` + * environment variables + ```` + HMD_SAML_GROUPATTRIBUTE=memberOf + HMD_SAML_REQUIREDGROUPS=hackmd-users|board-members + HMD_SAML_EXTERNALGROUPS=temporary-staff + ```` |