Added script to generate authsources configuration entry based on openid...

Added script to generate authsources configuration entry based on openid connect configuration discovery end point

openid-connect-configuration.php

+<?php
+
+const CONFIGURATION_PATH = '.well-known/openid-configuration';
+$configurationPathLength = strlen(CONFIGURATION_PATH);
+
+function usage() {
+    echo "Usage: $argv[0] <provider url>\n";
+    exit;
+}
+
+if (sizeof($argv) < 2) {
+    usage();
+}
+
+if ($argv[1] === '-h' || $argv[1] === '--help') {
+    usage();
+}
+
+$url = $argv[1];
+if (substr($url, -$configurationPathLength) !== CONFIGURATION_PATH) {
+    if (substr($url, -1) !== '/') {
+        $url .= '/';
+    }
+    $url .= CONFIGURATION_PATH;
+}
+
+$data = file_get_contents($url);
+if (!$data) {
+    echo "Failed to get configuration data from $url\n";
+    exit;
+}
+$conf = json_decode($data);
+if (!$conf) {
+    echo "Failed to json decode configuration data: " . $data;
+    exit;
+}
+
+echo <<<SNIP1
+    //OpenID Connect provider $conf->issuer
+    '$conf->issuer' => array(
+        'authoauth2:OpenIDConnect',
+
+        // Scopes to request, should include openid
+        'scopes' => ['openid', 'profile'],
+
+        // Configured client id and secret
+        'clientId' => '<client id>',
+        'clientSecret' => '<client secret>',
+
+        'scopeSeparator' => ' ',
+        'issuer' => '$conf->issuer',
+        'urlAuthorize' => '$conf->authorization_endpoint',
+        'urlAccessToken' => '$conf->token_endpoint',
+        'urlResourceOwnerDetails' => '$conf->userinfo_endpoint',
+
+SNIP1;
+if (isset($conf->end_session_endpoint)) {
+    echo "        'urlEndSession' => '$conf->end_session_endpoint',\n";
+}
+
+echo <<<SNIP2
+
+    ),
+
+SNIP2;