100 lines
3.3 KiB
PHP
100 lines
3.3 KiB
PHP
<?php
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/*
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* SvxPortal — web front-end for SvxReflector
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* Copyright (C) 2026 SA7AUX (Björn)
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*
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* This program is free software: you can redistribute it and/or modify it under
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* the terms of the GNU Affero General Public License as published by the Free
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* Software Foundation, either version 3 of the License, or (at your option) any
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* later version. See the LICENSE file for details.
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*/
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declare(strict_types=1);
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// redis.php — shared PHP helper for every web (dmr-web, svx-web).
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// Canonical copy: <dmr-portal>/auth/lib/redis.php; other repos carry a COPY.
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// Redis connections (main + aux) and the batched SCAN+MGET read — the only way to read many keys.
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// Loaded by auth/lib.php; needs cfg() from the page's own lib.php.
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// One connection from a config block {unix_socket|host,port, password, db}.
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// $read_timeout > 0 keeps a blocking SUBSCRIBE alive (lastheard relay: 86400 s).
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function redis_connect(array $c, float $read_timeout = 0.0): Redis {
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$r = new Redis();
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if (!empty($c['unix_socket'])) {
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$r->connect($c['unix_socket'], 0, 0.0, null, 0, $read_timeout);
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} else {
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$r->connect($c['host'], (int)$c['port'], 0.0, null, 0, $read_timeout);
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}
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if (!empty($c['password'])) $r->auth($c['password']);
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if (isset($c['db'])) $r->select((int)$c['db']);
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return $r;
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}
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function redis(): Redis {
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static $r = null;
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if ($r instanceof Redis) return $r;
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$c = cfg()['redis'];
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$r = new Redis();
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if (!empty($c['unix_socket'])) {
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$r->connect($c['unix_socket']);
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} else {
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$r->connect($c['host'], (int)$c['port']);
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}
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if (!empty($c['password'])) $r->auth($c['password']);
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if (isset($c['db'])) $r->select((int)$c['db']);
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return $r;
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}
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// V5-14F64: aux redis instance — daemon's APRS inbox/outbox lives here
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// (same place stats/events go). Falls back to main redis if no aux config
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// is present (older installs without redis-aux).
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function redis_aux(): Redis {
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static $r = null;
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if ($r instanceof Redis) return $r;
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$c = cfg()['redis_aux'] ?? null;
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if (!$c) return redis(); // fallback: main socket
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$r = new Redis();
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if (!empty($c['unix_socket'])) {
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$r->connect($c['unix_socket']);
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} else {
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$r->connect($c['host'], (int)$c['port']);
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}
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if (!empty($c['password'])) $r->auth($c['password']);
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if (isset($c['db'])) $r->select((int)$c['db']);
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return $r;
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}
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// Every key matching $pattern in ONE SCAN sweep (the only way to enumerate
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// keys: no KEYS, no per-page loops copied around). Returns [] on error.
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function redis_scan_keys(Redis $r, string $pattern, int $count = 500): array {
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$keys = [];
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$it = null;
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do {
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$batch = $r->scan($it, $pattern, $count);
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if (is_array($batch)) {
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foreach ($batch as $k) $keys[] = $k;
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}
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} while ($it > 0);
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return $keys;
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}
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// Batch-read every key under $scan_pattern: ONE SCAN sweep + one MGET, keyed
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// by the part after $base_prefix. With ~700k keys in the instance this is the
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// difference between 2 round-trips and one per key.
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function redis_scan_mget(Redis $r, string $base_prefix, string $scan_pattern): array {
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$keys = redis_scan_keys($r, $scan_pattern, 200);
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$out = [];
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if (!empty($keys)) {
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$vals = $r->mGet($keys);
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foreach ($keys as $i => $k) {
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$rel = substr($k, strlen($base_prefix));
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$v = $vals[$i] ?? false;
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$out[$rel] = is_string($v) ? $v : '';
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}
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}
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ksort($out);
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return $out;
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}
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