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Allow extra args to be provided to the OIDC auth endpoint #67

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Merged
merged 1 commit into from
Dec 9, 2022
Merged

Allow extra args to be provided to the OIDC auth endpoint #67

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4 changes: 4 additions & 0 deletions openid_connect.js
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Original file line number Diff line number Diff line change
Expand Up @@ -268,6 +268,10 @@ function getAuthZArgs(r) {
var nonceHash = h.digest('base64url');
var authZArgs = "?response_type=code&scope=" + r.variables.oidc_scopes + "&client_id=" + r.variables.oidc_client + "&redirect_uri="+ r.variables.redirect_base + r.variables.redir_location + "&nonce=" + nonceHash;

if (r.variables.oidc_authz_extra_args) {
authZArgs += "&" + r.variables.oidc_authz_extra_args;
}

r.headersOut['Set-Cookie'] = [
"auth_redir=" + r.variables.request_uri + "; " + r.variables.oidc_cookie_flags,
"auth_nonce=" + noncePlain + "; " + r.variables.oidc_cookie_flags
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12 changes: 12 additions & 0 deletions openid_connect_configuration.conf
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Expand Up @@ -8,6 +8,18 @@ map $host $oidc_authz_endpoint {
#www.example.com "https://my-idp/oauth2/v1/authorize";
}

map $host $oidc_authz_extra_args {
# Extra arguments to include in the request to the IdP's authorization
# endpoint.
# Some IdPs provide extended capabilities controlled by extra arguments,
# for example Keycloak can select an IdP to delegate to via the
# "kc_idp_hint" argument.
# Arguments must be expressed as query string parameters and URL-encoded
# if required.
default "";
#www.example.com "kc_idp_hint=another_provider"
}

map $host $oidc_token_endpoint {
default "http://127.0.0.1:8080/auth/realms/master/protocol/openid-connect/token";
}
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