first commit

This commit is contained in:
2024-09-06 13:32:15 -04:00
commit 700e8a2948
2013 changed files with 447887 additions and 0 deletions
+77
View File
@@ -0,0 +1,77 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\IncomingRequest;
use CodeIgniter\HTTP\RedirectResponse;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use CodeIgniter\Security\Exceptions\SecurityException;
/**
* CSRF filter.
*
* This filter is not intended to be used from the command line.
*
* @codeCoverageIgnore
* @see \CodeIgniter\Filters\CSRFTest
*/
class CSRF implements FilterInterface
{
/**
* Do whatever processing this filter needs to do.
* By default it should not return anything during
* normal execution. However, when an abnormal state
* is found, it should return an instance of
* CodeIgniter\HTTP\Response. If it does, script
* execution will end and that Response will be
* sent back to the client, allowing for error pages,
* redirects, etc.
*
* @param list<string>|null $arguments
*
* @return RedirectResponse|void
*
* @throws SecurityException
*/
public function before(RequestInterface $request, $arguments = null)
{
if (! $request instanceof IncomingRequest) {
return;
}
$security = service('security');
try {
$security->verify($request);
} catch (SecurityException $e) {
if ($security->shouldRedirect() && ! $request->isAJAX()) {
return redirect()->back()->with('error', $e->getMessage());
}
throw $e;
}
}
/**
* We don't have anything to do here.
*
* @param list<string>|null $arguments
*
* @return void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
}
}
+111
View File
@@ -0,0 +1,111 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\Cors as CorsService;
use CodeIgniter\HTTP\IncomingRequest;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
/**
* @see \CodeIgniter\Filters\CorsTest
*/
class Cors implements FilterInterface
{
private ?CorsService $cors = null;
/**
* @testTag $config is used for testing purposes only.
*
* @param array{
* allowedOrigins?: list<string>,
* allowedOriginsPatterns?: list<string>,
* supportsCredentials?: bool,
* allowedHeaders?: list<string>,
* exposedHeaders?: list<string>,
* allowedMethods?: list<string>,
* maxAge?: int,
* } $config
*/
public function __construct(array $config = [])
{
if ($config !== []) {
$this->cors = new CorsService($config);
}
}
/**
* @param list<string>|null $arguments
*
* @return ResponseInterface|string|void
*/
public function before(RequestInterface $request, $arguments = null)
{
if (! $request instanceof IncomingRequest) {
return;
}
$this->createCorsService($arguments);
if (! $this->cors->isPreflightRequest($request)) {
return;
}
/** @var ResponseInterface $response */
$response = service('response');
$response = $this->cors->handlePreflightRequest($request, $response);
// Always adds `Vary: Access-Control-Request-Method` header for cacheability.
// If there is an intermediate cache server such as a CDN, if a plain
// OPTIONS request is sent, it may be cached. But valid preflight requests
// have this header, so it will be cached separately.
$response->appendHeader('Vary', 'Access-Control-Request-Method');
return $response;
}
/**
* @param list<string>|null $arguments
*/
private function createCorsService(?array $arguments): void
{
$this->cors ??= ($arguments === null) ? CorsService::factory()
: CorsService::factory($arguments[0]);
}
/**
* @param list<string>|null $arguments
*
* @return ResponseInterface|void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
if (! $request instanceof IncomingRequest) {
return;
}
$this->createCorsService($arguments);
// Always adds `Vary: Access-Control-Request-Method` header for cacheability.
// If there is an intermediate cache server such as a CDN, if a plain
// OPTIONS request is sent, it may be cached. But valid preflight requests
// have this header, so it will be cached separately.
if ($request->is('OPTIONS')) {
$response->appendHeader('Vary', 'Access-Control-Request-Method');
}
return $this->cors->addResponseHeaders($request, $response);
}
}
+45
View File
@@ -0,0 +1,45 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
/**
* Debug toolbar filter
*
* @see \CodeIgniter\Filters\DebugToolbarTest
*/
class DebugToolbar implements FilterInterface
{
/**
* We don't need to do anything here.
*
* @param list<string>|null $arguments
*/
public function before(RequestInterface $request, $arguments = null)
{
}
/**
* If the debug flag is set (CI_DEBUG) then collect performance
* and debug information and display it in a toolbar.
*
* @param list<string>|null $arguments
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
service('toolbar')->prepare($request, $response);
}
}
@@ -0,0 +1,44 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters\Exceptions;
use CodeIgniter\Exceptions\ConfigException;
use CodeIgniter\Exceptions\ExceptionInterface;
/**
* FilterException
*/
class FilterException extends ConfigException implements ExceptionInterface
{
/**
* Thrown when the provided alias is not within
* the list of configured filter aliases.
*
* @return static
*/
public static function forNoAlias(string $alias)
{
return new static(lang('Filters.noFilter', [$alias]));
}
/**
* Thrown when the filter class does not implement FilterInterface.
*
* @return static
*/
public static function forIncorrectInterface(string $class)
{
return new static(lang('Filters.incorrectInterface', [$class]));
}
}
+51
View File
@@ -0,0 +1,51 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
/**
* Filter interface
*/
interface FilterInterface
{
/**
* Do whatever processing this filter needs to do.
* By default it should not return anything during
* normal execution. However, when an abnormal state
* is found, it should return an instance of
* CodeIgniter\HTTP\Response. If it does, script
* execution will end and that Response will be
* sent back to the client, allowing for error pages,
* redirects, etc.
*
* @param list<string>|null $arguments
*
* @return RequestInterface|ResponseInterface|string|void
*/
public function before(RequestInterface $request, $arguments = null);
/**
* Allows After filters to inspect and modify the response
* object as needed. This method does not allow any way
* to stop execution of other after filters, short of
* throwing an Exception or Error.
*
* @param list<string>|null $arguments
*
* @return ResponseInterface|void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null);
}
+869
View File
@@ -0,0 +1,869 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\Config\Filters as BaseFiltersConfig;
use CodeIgniter\Exceptions\ConfigException;
use CodeIgniter\Filters\Exceptions\FilterException;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use Config\Feature;
use Config\Filters as FiltersConfig;
use Config\Modules;
/**
* Filters
*
* @see \CodeIgniter\Filters\FiltersTest
*/
class Filters
{
/**
* The original config file
*
* @var FiltersConfig
*/
protected $config;
/**
* The active IncomingRequest or CLIRequest
*
* @var RequestInterface
*/
protected $request;
/**
* The active Response instance
*
* @var ResponseInterface
*/
protected $response;
/**
* Handle to the modules config.
*
* @var Modules
*/
protected $modules;
/**
* Whether we've done initial processing
* on the filter lists.
*
* @var bool
*/
protected $initialized = false;
/**
* The processed filters that will
* be used to check against.
*
* This does not include "Required Filters".
*
* @var array<string, array>
*/
protected $filters = [
'before' => [],
'after' => [],
];
/**
* The collection of filters' class names that will
* be used to execute in each position.
*
* This does not include "Required Filters".
*
* @var array<string, array>
*/
protected $filtersClass = [
'before' => [],
'after' => [],
];
/**
* Any arguments to be passed to filters.
*
* @var array<string, list<string>|null> [name => params]
*/
protected $arguments = [];
/**
* Any arguments to be passed to filtersClass.
*
* @var array<class-string, list<string>|null> [classname => arguments]
*/
protected $argumentsClass = [];
/**
* Constructor.
*
* @param FiltersConfig $config
*/
public function __construct($config, RequestInterface $request, ResponseInterface $response, ?Modules $modules = null)
{
$this->config = $config;
$this->request = &$request;
$this->setResponse($response);
$this->modules = $modules ?? config(Modules::class);
if ($this->modules->shouldDiscover('filters')) {
$this->discoverFilters();
}
}
/**
* If discoverFilters is enabled in Config then system will try to
* auto-discover custom filters files in Namespaces and allow access to
* the config object via the variable $filters as with the routes file
*
* Sample :
* $filters->aliases['custom-auth'] = \Acme\Blob\Filters\BlobAuth::class;
*
* @deprecated 4.4.2 Use Registrar instead.
*/
private function discoverFilters(): void
{
$locator = service('locator');
// for access by custom filters
$filters = $this->config;
$files = $locator->search('Config/Filters.php');
foreach ($files as $file) {
// The $file may not be a class file.
$className = $locator->getClassname($file);
// Don't include our main Filter config again...
if ($className === FiltersConfig::class || $className === BaseFiltersConfig::class) {
continue;
}
include $file;
}
}
/**
* Set the response explicitly.
*
* @return void
*/
public function setResponse(ResponseInterface $response)
{
$this->response = $response;
}
/**
* Runs through all of the filters for the specified
* uri and position.
*
* @param string $uri URI path relative to baseURL
* @phpstan-param 'before'|'after' $position
*
* @return RequestInterface|ResponseInterface|string|null
*
* @throws FilterException
*/
public function run(string $uri, string $position = 'before')
{
$this->initialize(strtolower($uri));
if ($position === 'before') {
return $this->runBefore($this->filtersClass[$position]);
}
// After
return $this->runAfter($this->filtersClass[$position]);
}
/**
* @return RequestInterface|ResponseInterface|string
*/
private function runBefore(array $filterClasses)
{
foreach ($filterClasses as $className) {
$class = new $className();
if (! $class instanceof FilterInterface) {
throw FilterException::forIncorrectInterface($class::class);
}
$result = $class->before(
$this->request,
$this->argumentsClass[$className] ?? null
);
if ($result instanceof RequestInterface) {
$this->request = $result;
continue;
}
// If the response object was sent back,
// then send it and quit.
if ($result instanceof ResponseInterface) {
// short circuit - bypass any other filters
return $result;
}
// Ignore an empty result
if (empty($result)) {
continue;
}
return $result;
}
return $this->request;
}
private function runAfter(array $filterClasses): ResponseInterface
{
foreach ($filterClasses as $className) {
$class = new $className();
if (! $class instanceof FilterInterface) {
throw FilterException::forIncorrectInterface($class::class);
}
$result = $class->after(
$this->request,
$this->response,
$this->argumentsClass[$className] ?? null
);
if ($result instanceof ResponseInterface) {
$this->response = $result;
continue;
}
}
return $this->response;
}
/**
* Runs "Required Filters" for the specified position.
*
* @return RequestInterface|ResponseInterface|string|null
*
* @phpstan-param 'before'|'after' $position
*
* @throws FilterException
*
* @internal
*/
public function runRequired(string $position = 'before')
{
[$filters, $aliases] = $this->getRequiredFilters($position);
if ($filters === []) {
return $position === 'before' ? $this->request : $this->response;
}
$filterClasses = [];
foreach ($filters as $alias) {
if (is_array($aliases[$alias])) {
$filterClasses[$position] = array_merge($filterClasses[$position], $aliases[$alias]);
} else {
$filterClasses[$position][] = $aliases[$alias];
}
}
if ($position === 'before') {
return $this->runBefore($filterClasses[$position]);
}
// After
return $this->runAfter($filterClasses[$position]);
}
/**
* Returns "Required Filters" for the specified position.
*
* @phpstan-param 'before'|'after' $position
*
* @internal
*/
public function getRequiredFilters(string $position = 'before'): array
{
// For backward compatibility. For users who do not update Config\Filters.
if (! isset($this->config->required[$position])) {
$baseConfig = config(BaseFiltersConfig::class); // @phpstan-ignore-line
$filters = $baseConfig->required[$position];
$aliases = $baseConfig->aliases;
} else {
$filters = $this->config->required[$position];
$aliases = $this->config->aliases;
}
if ($filters === []) {
return [[], $aliases];
}
if ($position === 'after') {
if (in_array('toolbar', $this->filters['after'], true)) {
// It was already run in globals filters. So remove it.
$filters = $this->setToolbarToLast($filters, true);
} else {
// Set the toolbar filter to the last position to be executed
$filters = $this->setToolbarToLast($filters);
}
}
foreach ($filters as $alias) {
if (! array_key_exists($alias, $aliases)) {
throw FilterException::forNoAlias($alias);
}
}
return [$filters, $aliases];
}
/**
* Set the toolbar filter to the last position to be executed.
*
* @param list<string> $filters `after` filter array
* @param bool $remove if true, remove `toolbar` filter
*/
private function setToolbarToLast(array $filters, bool $remove = false): array
{
$afters = [];
$found = false;
foreach ($filters as $alias) {
if ($alias === 'toolbar') {
$found = true;
continue;
}
$afters[] = $alias;
}
if ($found && ! $remove) {
$afters[] = 'toolbar';
}
return $afters;
}
/**
* Runs through our list of filters provided by the configuration
* object to get them ready for use, including getting uri masks
* to proper regex, removing those we can from the possibilities
* based on HTTP method, etc.
*
* The resulting $this->filters is an array of only filters
* that should be applied to this request.
*
* We go ahead and process the entire tree because we'll need to
* run through both a before and after and don't want to double
* process the rows.
*
* @param string|null $uri URI path relative to baseURL (all lowercase)
*
* @TODO We don't need to accept null as $uri.
*
* @return Filters
*/
public function initialize(?string $uri = null)
{
if ($this->initialized === true) {
return $this;
}
// Decode URL-encoded string
$uri = urldecode($uri ?? '');
$oldFilterOrder = config(Feature::class)->oldFilterOrder ?? false;
if ($oldFilterOrder) {
$this->processGlobals($uri);
$this->processMethods();
$this->processFilters($uri);
} else {
$this->processFilters($uri);
$this->processMethods();
$this->processGlobals($uri);
}
// Set the toolbar filter to the last position to be executed
$this->filters['after'] = $this->setToolbarToLast($this->filters['after']);
$this->processAliasesToClass('before');
$this->processAliasesToClass('after');
$this->initialized = true;
return $this;
}
/**
* Restores instance to its pre-initialized state.
* Most useful for testing so the service can be
* re-initialized to a different path.
*/
public function reset(): self
{
$this->initialized = false;
$this->arguments = $this->argumentsClass = [];
$this->filters = $this->filtersClass = [
'before' => [],
'after' => [],
];
return $this;
}
/**
* Returns the processed filters array.
* This does not include "Required Filters".
*/
public function getFilters(): array
{
return $this->filters;
}
/**
* Returns the filtersClass array.
* This does not include "Required Filters".
*/
public function getFiltersClass(): array
{
return $this->filtersClass;
}
/**
* Adds a new alias to the config file.
* MUST be called prior to initialize();
* Intended for use within routes files.
*
* @return $this
*/
public function addFilter(string $class, ?string $alias = null, string $when = 'before', string $section = 'globals')
{
$alias ??= md5($class);
if (! isset($this->config->{$section})) {
$this->config->{$section} = [];
}
if (! isset($this->config->{$section}[$when])) {
$this->config->{$section}[$when] = [];
}
$this->config->aliases[$alias] = $class;
$this->config->{$section}[$when][] = $alias;
return $this;
}
/**
* Ensures that a specific filter is on and enabled for the current request.
*
* Filters can have "arguments". This is done by placing a colon immediately
* after the filter name, followed by a comma-separated list of arguments that
* are passed to the filter when executed.
*
* @param string $name filter_name or filter_name:arguments like 'role:admin,manager'
*/
private function enableFilter(string $name, string $when = 'before'): void
{
// Get arguments and clean name
[$name, $arguments] = $this->getCleanName($name);
$this->arguments[$name] = ($arguments !== []) ? $arguments : null;
if (class_exists($name)) {
$this->config->aliases[$name] = $name;
} elseif (! array_key_exists($name, $this->config->aliases)) {
throw FilterException::forNoAlias($name);
}
$classNames = (array) $this->config->aliases[$name];
foreach ($classNames as $className) {
$this->argumentsClass[$className] = $this->arguments[$name] ?? null;
}
if (! isset($this->filters[$when][$name])) {
$this->filters[$when][] = $name;
$this->filtersClass[$when] = array_merge($this->filtersClass[$when], $classNames);
}
}
/**
* Get clean name and arguments
*
* @param string $name filter_name or filter_name:arguments like 'role:admin,manager'
*
* @return array{0: string, 1: list<string>} [name, arguments]
*/
private function getCleanName(string $name): array
{
$arguments = [];
if (str_contains($name, ':')) {
[$name, $arguments] = explode(':', $name);
$arguments = explode(',', $arguments);
array_walk($arguments, static function (&$item): void {
$item = trim($item);
});
}
return [$name, $arguments];
}
/**
* Ensures that specific filters are on and enabled for the current request.
*
* Filters can have "arguments". This is done by placing a colon immediately
* after the filter name, followed by a comma-separated list of arguments that
* are passed to the filter when executed.
*
* @params array<string> $names filter_name or filter_name:arguments like 'role:admin,manager'
*
* @return Filters
*/
public function enableFilters(array $names, string $when = 'before')
{
foreach ($names as $filter) {
$this->enableFilter($filter, $when);
}
return $this;
}
/**
* Returns the arguments for a specified key, or all.
*
* @return array<string, string>|string
*/
public function getArguments(?string $key = null)
{
return $key === null ? $this->arguments : $this->arguments[$key];
}
// --------------------------------------------------------------------
// Processors
// --------------------------------------------------------------------
/**
* Add any applicable (not excluded) global filter settings to the mix.
*
* @param string|null $uri URI path relative to baseURL (all lowercase)
*
* @return void
*/
protected function processGlobals(?string $uri = null)
{
if (! isset($this->config->globals) || ! is_array($this->config->globals)) {
return;
}
$uri = strtolower(trim($uri ?? '', '/ '));
// Add any global filters, unless they are excluded for this URI
$sets = ['before', 'after'];
$filters = [];
foreach ($sets as $set) {
if (isset($this->config->globals[$set])) {
// look at each alias in the group
foreach ($this->config->globals[$set] as $alias => $rules) {
$keep = true;
if (is_array($rules)) {
// see if it should be excluded
if (isset($rules['except'])) {
// grab the exclusion rules
$check = $rules['except'];
if ($this->checkExcept($uri, $check)) {
$keep = false;
}
}
} else {
$alias = $rules; // simple name of filter to apply
}
if ($keep) {
$filters[$set][] = $alias;
}
}
}
}
if (isset($filters['before'])) {
$oldFilterOrder = config(Feature::class)->oldFilterOrder ?? false;
if ($oldFilterOrder) {
$this->filters['before'] = array_merge($this->filters['before'], $filters['before']);
} else {
$this->filters['before'] = array_merge($filters['before'], $this->filters['before']);
}
}
if (isset($filters['after'])) {
$this->filters['after'] = array_merge($this->filters['after'], $filters['after']);
}
}
/**
* Add any method-specific filters to the mix.
*
* @return void
*/
protected function processMethods()
{
if (! isset($this->config->methods) || ! is_array($this->config->methods)) {
return;
}
$method = $this->request->getMethod();
$found = false;
if (array_key_exists($method, $this->config->methods)) {
$found = true;
}
// Checks lowercase HTTP method for backward compatibility.
// @deprecated 4.5.0
// @TODO remove this in the future.
elseif (array_key_exists(strtolower($method), $this->config->methods)) {
@trigger_error(
'Setting lowercase HTTP method key "' . strtolower($method) . '" is deprecated.'
. ' Use uppercase HTTP method like "' . strtoupper($method) . '".',
E_USER_DEPRECATED
);
$found = true;
$method = strtolower($method);
}
if ($found) {
$oldFilterOrder = config(Feature::class)->oldFilterOrder ?? false;
if ($oldFilterOrder) {
$this->filters['before'] = array_merge($this->filters['before'], $this->config->methods[$method]);
} else {
$this->filters['before'] = array_merge($this->config->methods[$method], $this->filters['before']);
}
}
}
/**
* Add any applicable configured filters to the mix.
*
* @param string|null $uri URI path relative to baseURL (all lowercase)
*
* @return void
*/
protected function processFilters(?string $uri = null)
{
if (! isset($this->config->filters) || ! $this->config->filters) {
return;
}
$uri = strtolower(trim($uri, '/ '));
// Add any filters that apply to this URI
$filters = [];
foreach ($this->config->filters as $alias => $settings) {
// Look for inclusion rules
if (isset($settings['before'])) {
$path = $settings['before'];
if ($this->pathApplies($uri, $path)) {
// Get arguments and clean name
[$name, $arguments] = $this->getCleanName($alias);
$filters['before'][] = $name;
$this->registerArguments($name, $arguments);
}
}
if (isset($settings['after'])) {
$path = $settings['after'];
if ($this->pathApplies($uri, $path)) {
// Get arguments and clean name
[$name, $arguments] = $this->getCleanName($alias);
$filters['after'][] = $name;
// The arguments may have already been registered in the before filter.
// So disable check.
$this->registerArguments($name, $arguments, false);
}
}
}
$oldFilterOrder = config(Feature::class)->oldFilterOrder ?? false;
if (isset($filters['before'])) {
if ($oldFilterOrder) {
$this->filters['before'] = array_merge($this->filters['before'], $filters['before']);
} else {
$this->filters['before'] = array_merge($filters['before'], $this->filters['before']);
}
}
if (isset($filters['after'])) {
if (! $oldFilterOrder) {
$filters['after'] = array_reverse($filters['after']);
}
$this->filters['after'] = array_merge($this->filters['after'], $filters['after']);
}
}
/**
* @param string $name filter alias
* @param array $arguments filter arguments
* @param bool $check if true, check if already defined
*/
private function registerArguments(string $name, array $arguments, bool $check = true): void
{
if ($arguments !== []) {
if ($check && array_key_exists($name, $this->arguments)) {
throw new ConfigException(
'"' . $name . '" already has arguments: '
. (($this->arguments[$name] === null) ? 'null' : implode(',', $this->arguments[$name]))
);
}
$this->arguments[$name] = $arguments;
}
$classNames = (array) $this->config->aliases[$name];
foreach ($classNames as $className) {
$this->argumentsClass[$className] = $this->arguments[$name] ?? null;
}
}
/**
* Maps filter aliases to the equivalent filter classes
*
* @return void
*
* @throws FilterException
*/
protected function processAliasesToClass(string $position)
{
$filterClasses = [];
foreach ($this->filters[$position] as $alias => $rules) {
if (is_numeric($alias) && is_string($rules)) {
$alias = $rules;
}
if (! array_key_exists($alias, $this->config->aliases)) {
throw FilterException::forNoAlias($alias);
}
if (is_array($this->config->aliases[$alias])) {
$filterClasses = [...$filterClasses, ...$this->config->aliases[$alias]];
} else {
$filterClasses[] = $this->config->aliases[$alias];
}
}
// when using enableFilter() we already write the class name in $filterClasses as well as the
// alias in $filters. This leads to duplicates when using route filters.
if ($position === 'before') {
$this->filtersClass[$position] = array_merge($filterClasses, $this->filtersClass[$position]);
} else {
$this->filtersClass[$position] = array_merge($this->filtersClass[$position], $filterClasses);
}
// Since some filters like rate limiters rely on being executed once a request we filter em here.
$this->filtersClass[$position] = array_values(array_unique($this->filtersClass[$position]));
}
/**
* Check paths for match for URI
*
* @param string $uri URI to test against
* @param array|string $paths The path patterns to test
*
* @return bool True if any of the paths apply to the URI
*/
private function pathApplies(string $uri, $paths)
{
// empty path matches all
if ($paths === '' || $paths === []) {
return true;
}
// make sure the paths are iterable
if (is_string($paths)) {
$paths = [$paths];
}
return $this->checkPseudoRegex($uri, $paths);
}
/**
* Check except paths
*
* @param string $uri URI path relative to baseURL (all lowercase)
* @param array|string $paths The except path patterns
*
* @return bool True if the URI matches except paths.
*/
private function checkExcept(string $uri, $paths): bool
{
// empty array does not match anything
if ($paths === []) {
return false;
}
// make sure the paths are iterable
if (is_string($paths)) {
$paths = [$paths];
}
return $this->checkPseudoRegex($uri, $paths);
}
/**
* Check the URI path as pseudo-regex
*
* @param string $uri URI path relative to baseURL (all lowercase, URL-decoded)
* @param array $paths The except path patterns
*/
private function checkPseudoRegex(string $uri, array $paths): bool
{
// treat each path as pseudo-regex
foreach ($paths as $path) {
// need to escape path separators
$path = str_replace('/', '\/', trim($path, '/ '));
// need to make pseudo wildcard real
$path = strtolower(str_replace('*', '.*', $path));
// Does this rule apply here?
if (preg_match('#\A' . $path . '\z#u', $uri, $match) === 1) {
return true;
}
}
return false;
}
}
+64
View File
@@ -0,0 +1,64 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\Exceptions\RedirectException;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use Config\App;
/**
* Force HTTPS filter
*/
class ForceHTTPS implements FilterInterface
{
/**
* Force Secure Site Access? If the config value 'forceGlobalSecureRequests'
* is true, will enforce that all requests to this site are made through
* HTTPS. Will redirect the user to the current page with HTTPS, as well
* as set the HTTP Strict Transport Security (HSTS) header for those browsers
* that support it.
*
* @param array|null $arguments
*
* @return ResponseInterface|void
*/
public function before(RequestInterface $request, $arguments = null)
{
$config = config(App::class);
if ($config->forceGlobalSecureRequests !== true) {
return;
}
$response = service('response');
try {
force_https(YEAR, $request, $response);
} catch (RedirectException $e) {
return $e->getResponse();
}
}
/**
* We don't have anything to do here.
*
* @param array|null $arguments
*
* @return void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
}
}
+57
View File
@@ -0,0 +1,57 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\Honeypot\Exceptions\HoneypotException;
use CodeIgniter\HTTP\IncomingRequest;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use Config\Services;
/**
* Honeypot filter
*
* @see \CodeIgniter\Filters\HoneypotTest
*/
class Honeypot implements FilterInterface
{
/**
* Checks if Honeypot field is empty, if not then the
* requester is a bot
*
* @param list<string>|null $arguments
*
* @throws HoneypotException
*/
public function before(RequestInterface $request, $arguments = null)
{
if (! $request instanceof IncomingRequest) {
return;
}
if (Services::honeypot()->hasContent($request)) {
throw HoneypotException::isBot();
}
}
/**
* Attach a honeypot to the current response.
*
* @param list<string>|null $arguments
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
service('honeypot')->attachHoneypot($response);
}
}
+128
View File
@@ -0,0 +1,128 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\IncomingRequest;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
use CodeIgniter\Security\Exceptions\SecurityException;
/**
* InvalidChars filter.
*
* Check if user input data ($_GET, $_POST, $_COOKIE, php://input) do not contain
* invalid characters:
* - invalid UTF-8 characters
* - control characters except line break and tab code
*
* @see \CodeIgniter\Filters\InvalidCharsTest
*/
class InvalidChars implements FilterInterface
{
/**
* Data source
*
* @var string
*/
protected $source;
/**
* Regular expressions for valid control codes
*
* @var string
*/
protected $controlCodeRegex = '/\A[\r\n\t[:^cntrl:]]*\z/u';
/**
* Check invalid characters.
*
* @param list<string>|null $arguments
*
* @return void
*/
public function before(RequestInterface $request, $arguments = null)
{
if (! $request instanceof IncomingRequest) {
return;
}
$data = [
'get' => $request->getGet(),
'post' => $request->getPost(),
'cookie' => $request->getCookie(),
'rawInput' => $request->getRawInput(),
];
foreach ($data as $source => $values) {
$this->source = $source;
$this->checkEncoding($values);
$this->checkControl($values);
}
}
/**
* We don't have anything to do here.
*
* @param list<string>|null $arguments
*
* @return void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
}
/**
* Check the character encoding is valid UTF-8.
*
* @param array|string $value
*
* @return array|string
*/
protected function checkEncoding($value)
{
if (is_array($value)) {
array_map($this->checkEncoding(...), $value);
return $value;
}
if (mb_check_encoding($value, 'UTF-8')) {
return $value;
}
throw SecurityException::forInvalidUTF8Chars($this->source, $value);
}
/**
* Check for the presence of control characters except line breaks and tabs.
*
* @param array|string $value
*
* @return array|string
*/
protected function checkControl($value)
{
if (is_array($value)) {
array_map($this->checkControl(...), $value);
return $value;
}
if (preg_match($this->controlCodeRegex, $value) === 1) {
return $value;
}
throw SecurityException::forInvalidControlChars($this->source, $value);
}
}
+77
View File
@@ -0,0 +1,77 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\Cache\ResponseCache;
use CodeIgniter\HTTP\CLIRequest;
use CodeIgniter\HTTP\DownloadResponse;
use CodeIgniter\HTTP\IncomingRequest;
use CodeIgniter\HTTP\RedirectResponse;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
/**
* Page Cache filter
*/
class PageCache implements FilterInterface
{
private readonly ResponseCache $pageCache;
public function __construct()
{
$this->pageCache = service('responsecache');
}
/**
* Checks page cache and return if found.
*
* @param array|null $arguments
*
* @return ResponseInterface|void
*/
public function before(RequestInterface $request, $arguments = null)
{
assert($request instanceof CLIRequest || $request instanceof IncomingRequest);
$response = service('response');
$cachedResponse = $this->pageCache->get($request, $response);
if ($cachedResponse instanceof ResponseInterface) {
return $cachedResponse;
}
}
/**
* Cache the page.
*
* @param array|null $arguments
*
* @return void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
assert($request instanceof CLIRequest || $request instanceof IncomingRequest);
if (
! $response instanceof DownloadResponse
&& ! $response instanceof RedirectResponse
) {
// Cache it without the performance metrics replaced
// so that we can have live speed updates along the way.
// Must be run after filters to preserve the Response headers.
$this->pageCache->make($request, $response);
}
}
}
+62
View File
@@ -0,0 +1,62 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
/**
* Performance Metrics filter
*/
class PerformanceMetrics implements FilterInterface
{
/**
* We don't need to do anything here.
*
* @param array|null $arguments
*/
public function before(RequestInterface $request, $arguments = null)
{
}
/**
* Replaces the performance metrics.
*
* @param array|null $arguments
*
* @return void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
$body = $response->getBody();
if ($body !== null) {
$benchmark = service('timer');
$output = str_replace(
[
'{elapsed_time}',
'{memory_usage}',
],
[
(string) $benchmark->getElapsedTime('total_execution'),
number_format(memory_get_peak_usage() / 1024 / 1024, 3),
],
$body
);
$response->setBody($output);
}
}
}
+75
View File
@@ -0,0 +1,75 @@
<?php
declare(strict_types=1);
/**
* This file is part of CodeIgniter 4 framework.
*
* (c) CodeIgniter Foundation <admin@codeigniter.com>
*
* For the full copyright and license information, please view
* the LICENSE file that was distributed with this source code.
*/
namespace CodeIgniter\Filters;
use CodeIgniter\HTTP\RequestInterface;
use CodeIgniter\HTTP\ResponseInterface;
/**
* Add Common Security Headers
*
* @see \CodeIgniter\Filters\SecureHeadersTest
*/
class SecureHeaders implements FilterInterface
{
/**
* @var array<string, string>
*/
protected $headers = [
// https://owasp.org/www-project-secure-headers/#x-frame-options
'X-Frame-Options' => 'SAMEORIGIN',
// https://owasp.org/www-project-secure-headers/#x-content-type-options
'X-Content-Type-Options' => 'nosniff',
// https://docs.microsoft.com/en-us/previous-versions/windows/internet-explorer/ie-developer/compatibility/jj542450(v=vs.85)#the-noopen-directive
'X-Download-Options' => 'noopen',
// https://owasp.org/www-project-secure-headers/#x-permitted-cross-domain-policies
'X-Permitted-Cross-Domain-Policies' => 'none',
// https://owasp.org/www-project-secure-headers/#referrer-policy
'Referrer-Policy' => 'same-origin',
// https://owasp.org/www-project-secure-headers/#x-xss-protection
// If you do not need to support legacy browsers, it is recommended that you use
// Content-Security-Policy without allowing unsafe-inline scripts instead.
// 'X-XSS-Protection' => '1; mode=block',
];
/**
* We don't have anything to do here.
*
* @param list<string>|null $arguments
*
* @return void
*/
public function before(RequestInterface $request, $arguments = null)
{
}
/**
* Add security headers.
*
* @param list<string>|null $arguments
*
* @return void
*/
public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
{
foreach ($this->headers as $header => $value) {
$response->setHeader($header, $value);
}
}
}