Files
TheWitnessandTheWitness 3ab4c69fb7 PHPStan Level 8 - Phase 1 Conversion (#8135)
* PHPStan Level 8 - Phase 1 Conversion

Reduces the real (no-baseline) PHPStan level 8 error count from ~2,724 to 425
and regenerates phpstan-baseline.neon accordingly (8,941 -> 1,921 lines).

Core type-safety changes
- lib/database.php: narrow db_fetch_row()/db_fetch_row_prepared() to return
  array (was bool|array) and db_fetch_assoc()/db_fetch_assoc_prepared() to
  return array (was mixed); the _prepared workers coerce the connection-failure
  path to an empty array so the declared type is honest. empty()/cacti_sizeof()
  checks are unaffected.
- lib/database.php: narrow $db_conn guards from is_object() to instanceof PDO in
  the transaction/quote/insert-id helpers so the PDO calls resolve.
- lib/mib_cache.php: the fluent MibCache methods mib()/object()/table()/row()
  now return self instead of a bare object so chained calls type-check.

Type-safety casts and guards (mechanical, behaviour-preserving)
- Cast string|false/|null builtin results feeding string parameters
  (json_decode, base64_encode, trim, htmle, preg_replace, explode, etc.).
- Cast int|string / int|false values feeding int id/pid parameters.
- Guard resource|false fopen()/popen() handles before fwrite/fclose/fread, and
  wrap foreach over array|false/list|false results with `?: []`.

Genuine bugs found and fixed
- cli/add_tree.php / lib/api_tree.php: site tree nodes could not be created via
  the CLI - the --site-id option was never parsed, $nodeTypes had no 'site'
  entry (passing null to api_tree_item_save(int $type) -> TypeError), and
  api_tree_item_save() never persisted site_id. All three fixed.
- tree.php: leaves_exist() is typed : int but returned db_fetch_assoc_prepared()
  (an array of rows) for a SELECT COUNT(*); now uses db_fetch_cell_prepared()
  and returns the scalar count.
- lib/mib_cache.php: $entries_per_object was a float (division / ceil) used as
  an array key (PHP 8.1 implicit float-to-int key deprecation); now cast to int.

Config
- .phpstan.neon: add notIdentical.alwaysTrue and booleanAnd.alwaysFalse to the
  existing always-true/false ignore family (same "PHPStan gets confused"
  dynamic-constant cause already covered by identical.alwaysTrue,
  notEqual.alwaysTrue, booleanAnd.leftAlwaysTrue, etc.).
- phpstan-baseline.neon: regenerated; the remaining 425 entries are the
  untouched long tail for Phase 2.

* Remove redundant @phpstan-ignore comments

Follow-up cleanup for the level 8 Phase 1 work. Removes 14 inline
@phpstan-ignore comments that no longer suppress any reported error:

- cli/repair_database.php: `@phpstan-ignore booleanAnd.alwaysFalse` is now
  covered by the global booleanAnd.alwaysFalse ignore added to .phpstan.neon.
- 13 others (host.php, include/global.php, include/session.php,
  lib/api_automation.php x2, lib/functions.php x2, lib/html_utility.php x2,
  lib/installer.php, lib/package.php, lib/reports.php, lib/rrd.php) no longer
  match any reported error after the type-safety fixes (e.g. the
  db_fetch_row_prepared() return-type narrowing removed the offset-assign
  errors the api_automation ignores were suppressing).

Verified with reportUnmatchedIgnoredErrors enabled: 0 unmatched ignores
remain and the full level 8 run still reports 0 errors.

* ci: satisfy validator ratchet and refresh security sink baselines

- lib/api_tree.php: give the new tree-item site_id a real numeric
  constraint ('^[-0-9]+$', matching html_reports.php) instead of an
  empty regex, so the validator constraint ratchet passes without
  bumping its baseline.
- tests/security/baselines: refresh the three sink/hotspot signatures
  whose code text changed from the (string) casts added in this branch
  (lib/poller.php setsid, cli/rrdresize.php json_encode, lib/import.php
  simplexml_load_string).

* ci(js): allow DOMPurify 3.4.16 and update sync_js pin test

The dependabot bump (#8134) moved package.json/package-lock.json to
DOMPurify 3.4.16 on develop but left tests/js/sync_js.test.mjs pinned to
3.4.15, so the PR merge commit fails the 'DOMPurify is pinned' contract.
Bring package.json/package-lock.json to 3.4.16 (matching develop) and
update the pin test to expect 3.4.16.

* test: update sql.php null-handling assertion for the (string) cast

This branch changed scripts/sql.php from trim(\ ?? '') to
trim((string) \) (the phpstan-safe form that coerces both null and
false from shell_exec()). Update SqlScriptsTest's null-return assertion
to match the new cast instead of the removed '?? ''.

* fix: address Copilot review - ownership IDs, fopen guards, mib_cache bound

- chown()/chgrp(): pass integer UID/GID from fileowner()/filegroup()
  (guarding the false lookup) instead of string-casting them, which made
  them resolve account/group names like '1001' and fail. Covers
  lib/api_device.php, lib/boost.php and poller_maintenance.php (x2).
- fopen() failure now short-circuits instead of reporting success:
  lib/package.php returns false, lib/clog_webapi.php and utilities.php
  render an error, and snmpagent_mibcachechild.php skips the cache write
  and sentinel unlink so a concurrent writer's lock is preserved.
- lib/mib_cache.php: keep the float quotient as the loop bound and cast
  only the array offset, so a non-even entries/columns split no longer
  truncates the loop and drops a cached row.

* revert: keep db_fetch_* returning false on error; baseline Level 8 instead

Per review, restoring the intentional fail-safe: db_fetch_row[_prepared]()
return bool|array and db_fetch_assoc[_prepared]() return mixed again, so a
genuine SQL error (not just a missing connection) is signalled as false and
the === false checks in cdef_is_in_use(), boost_process_* and aggregate.php
work as before. Dropped the is_array() ? : [] coercion.

Level 8 stays green by regenerating phpstan-baseline.neon to capture the
re-introduced bool|array/mixed call-site errors (the ~1,850 the narrowing
had eliminated). Tightening those callers to drop them from the baseline is
Phase 2 work.

---------

Co-authored-by: TheWitness <copilot@users.noreply.github.com>
2026-10-02 10:08:56 -04:00
..
2025-09-11 13:06:45 -04:00

Cacti RESTful Slim API

This project provides a RESTful API for accessing Cacti monitoring data using the Slim PHP framework.

Overview

The API exposes endpoints to retrieve information about hosts, host templates, poller status, graph lists, Cacti status, boost status, database connectivity, and plugin thresholds. All responses are in JSON format.

This API is not production ready.

It refuses to answer unless it is deliberately switched on, because no route in it authenticates or authorises anything. Every endpoint would answer whoever reached the URL. To run it for development, enable it in the database:

REPLACE INTO settings (name, value) VALUES ('api_enabled', 'on');

Error details are withheld on the same basis, since they carry stack traces and file paths. To see them while developing:

REPLACE INTO settings (name, value) VALUES ('api_developer_mode', 'on');

Neither setting appears in the web interface on purpose. Adding a toggle that exposes host inventory without a password would be worse than leaving the switch where an operator has to mean it. See ADR 0001 for the authentication this is waiting on.

To run the API for development:

php -S 127.0.0.1:8080 -t public public/index.php

For production, this should be served by a proper web server (Apache, Nginx, etc.).

API Versioning

The API uses URL path versioning. All endpoints are prefixed with a version number:

  • /v1/ - Current stable version

Endpoints

  • GET /
    Returns a welcome message.

Version 1 (v1) Endpoints

Info Endpoints

  • GET /v1/info/hosts
    Returns a list of hosts.
    Allowed query parameters:

    • host_id
    • poller_id
    • site_id
    • template_id
    • status
  • GET /v1/info/host_templates
    Returns host template information. Accepts template_id as a query parameter.

  • GET /v1/info/graph_list
    Returns a list of graphs. Accepts host_id as a query parameter.

Status Endpoints

  • GET /v1/status/poller_status
    Returns poller status. Accepts poller_id as a query parameter.

  • GET /v1/status/cacti_status
    Returns the status of the Cacti system.

  • GET /v1/status/boost_status
    Returns the status of the Cacti Boost system.

  • GET /v1/status/api_db_ping
    Checks database connectivity.

  • GET /v1/status/cacti_db_status Returns metrics for the main Cacti database.

Plugin Endpoints

  • GET /v1/plugin/thold/thresholds
    Returns threshold information from the thold plugin.

  • GET /v1/plugin/thold/status
    Returns threshold status information.

Usage

  1. Install dependencies with Composer.
  2. Configure your web server to serve the public/ directory.
  3. Access the API endpoints as described above using the versioned URLs (e.g., /v1/info/hosts).

Requirements

  • PHP 8.3 or higher (within the supported PHP 8.x series)
  • Composer
  • Cacti database and configuration

TODO

  • Import Cacti base db_functions
  • Logging
  • Authentication/Authorization
  • Rate limiting
  • API documentation (OpenAPI/Swagger)