24041512552

Committed 06 Apr 2026 05:02PM UTC coverage: 86.562% (+0.006%) from 86.556%

Build # 24041512552

Build Type

Pull #10087

github

Committed by

web-flow

Commit Message

Merge 0b455a909 into d6e3f7b3f

Pull Request Pull Request #10087: feat: add `FormRequest` for encapsulating validation and authorization

Coverage Stats

68 of 77 new or added lines in 6 files covered. (88.31%)

21 existing lines in 2 files now uncovered.

22771 of 26306 relevant lines covered (86.56%)

221.5 hits per line

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94.29

/system/HTTP/FormRequest.php

<?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\HTTP;

use ReflectionNamedType;
use ReflectionParameter;

/**
 * @see \CodeIgniter\HTTP\FormRequestTest
 */
abstract class FormRequest
{
    /**
     * The underlying HTTP request instance.
     */
    protected IncomingRequest $request;

    /**
     * Data that passed validation (only the fields covered by rules()).
     *
     * @var array<string, mixed>
     */
    private array $validatedData = [];

    /**
     * When called by the framework, the current IncomingRequest is injected
     * explicitly. When instantiated manually (e.g. in tests), the constructor
     * falls back to service('request').
     */
    final public function __construct(?IncomingRequest $request = null)
    {
        $this->request = $request ?? service('request');
    }

    /**
     * Validation rules for this request.
     *
     * Return an array of field => rules pairs, identical to what you would
     * pass to $this->validate() in a controller:
     *
     *  return [
     *      'title' => 'required|min_length[5]',
     *      'body'  => ['required', 'max_length[10000]'],
     *  ];
     *
     * @return array<string, list<string>|string>
     */
    abstract public function rules(): array;

    /**
     * Custom error messages keyed by field.rule.
     *
     *  return [
     *      'title' => ['required' => 'Post title cannot be empty.'],
     *  ];
     *
     * @return array<string, array<string, string>|string>
     */
    public function messages(): array
    {
        return [];
    }

    /**
     * Determine if the current user is authorized to make this request.
     *
     * Override in subclasses to add authorization logic:
     *
     *  public function isAuthorized(): bool
     *  {
     *      return auth()->user()->can('create-posts');
     *  }
     */
    public function isAuthorized(): bool
    {
        return true;
    }

    /**
     * Returns the class name when the given reflection parameter is typed as a
     * FormRequest subclass, or null otherwise. Used by the dispatcher and
     * auto-router to distinguish injectable parameters from URI-segment parameters.
     *
     * @internal
     *
     * @return class-string<self>|null
     */
    public static function getFormRequestClass(ReflectionParameter $param): ?string
    {
        $type = $param->getType();

        if (
            $type instanceof ReflectionNamedType
            && ! $type->isBuiltin()
            && is_subclass_of($type->getName(), self::class)
        ) {
            return $type->getName();
        }

        return null;
    }

    /**
     * Modify the request data before validation rules are applied.
     * Override to normalize or cast input values:
     *
     *  protected function prepareForValidation(array $data): array
     *  {
     *      $data['slug'] = url_title($data['title'] ?? '', '-', true);
     *      return $data;
     *  }
     *
     * The $data array is the same payload that will be passed to the
     * validator. Return the (possibly modified) array.
     *
     * @param array<string, mixed> $data
     *
     * @return array<string, mixed>
     */
    protected function prepareForValidation(array $data): array
    {
        return $data;
    }

    /**
     * Called when validation fails. Override to customize the failure response.
     *
     * The default implementation redirects back with input and flashes validation
     * errors via the standard ``_ci_validation_errors`` channel (the same channel
     * used by controller-level validation and readable by ``validation_errors()``
     * helpers). For JSON/AJAX requests it returns a 422 JSON response instead.
     *
     * @param array<string, string> $errors
     */
    protected function failedValidation(array $errors): ResponseInterface
    {
        if ($this->request->is('json') || $this->request->isAJAX()) {
            return service('response')->setStatusCode(422)->setJSON(['errors' => $errors]);
        }

        return redirect()->back()->withInput();
    }

    /**
     * Called when the isAuthorized() check returns false. Override to customize.
     */
    protected function failedAuthorization(): ResponseInterface
    {
        return service('response')->setStatusCode(403);
    }

    /**
     * Returns only the fields that passed validation (those covered by rules()).
     *
     * Prefer this over $this->request->getPost() in controllers to avoid
     * processing fields that were not declared in the rules.
     *
     * @return array<string, mixed>
     */
    public function validated(): array
    {
        return $this->validatedData;
    }

    /**
     * Returns a single validated field value by name, or null if the field
     * is not present in the validated data (either not declared in rules() or
     * validation has not yet run).
     *
     * Allows accessing individual fields as object properties:
     *
     *  $title = $request->title;
     *
     * @return mixed
     */
    public function __get(string $name)
    {
        return $this->validatedData[$name] ?? null;
    }

    /**
     * Returns true when the named field exists in the validated data and its
     * value is not null. Mirrors standard PHP isset() semantics on properties:
     *
     *  if (isset($request->title)) { ... }
     */
    public function __isset(string $name): bool
    {
        return isset($this->validatedData[$name]);
    }

    /**
     * Returns the data to be validated.
     *
     * Override this method to provide custom data or to merge data from
     * multiple sources. By default, data is sourced from the appropriate
     * part of the request based on HTTP method and Content-Type:
     *
     * - JSON (any method)      - decoded JSON body
     * - PUT / PATCH / DELETE   - raw body (unless multipart/form-data)
     * - GET / HEAD             - query-string parameters
     * - Everything else (POST) - POST body
     *
     * @return array<string, mixed>
     */
    protected function validationData(): array
    {
        $contentType = $this->request->getHeaderLine('Content-Type');

        if (str_contains($contentType, 'application/json')) {
            return $this->request->getJSON(true) ?? [];
        }

        if (
            in_array($this->request->getMethod(), [Method::PUT, Method::PATCH, Method::DELETE], true)
            && ! str_contains($contentType, 'multipart/form-data')
        ) {
            return $this->request->getRawInput() ?? [];
        }

        if (in_array($this->request->getMethod(), [Method::GET, Method::HEAD], true)) {
            return $this->request->getGet() ?? [];
        }

        return $this->request->getPost() ?? [];
    }

    /**
     * Runs authorization and validation. Called by the framework before
     * injecting the FormRequest into the controller method.
     *
     * Returns null on success, or a ResponseInterface to short-circuit the
     * request when authorization or validation fails.
     *
     * Do not call this method directly unless you are inside a ``_remap()``
     * method, where automatic injection is not available.
     *
     * @internal
     */
    final public function resolveRequest(): ?ResponseInterface
    {
        if (! $this->isAuthorized()) {
            return $this->failedAuthorization();
        }

        $data = $this->prepareForValidation($this->validationData());

        $validation = service('validation')
            ->setRules($this->rules(), $this->messages());

        if (! $validation->run($data)) {
            return $this->failedValidation($validation->getErrors());
        }

        $this->validatedData = $validation->getValidated();

        return null;
    }
}

1	<?php
2
3	declare(strict_types=1);
4
5	/**
6	* This file is part of CodeIgniter 4 framework.
7	*
8	* (c) CodeIgniter Foundation <admin@codeigniter.com>
9	*
10	* For the full copyright and license information, please view
11	* the LICENSE file that was distributed with this source code.
12	*/
13
14	namespace CodeIgniter\HTTP;
15
16	use ReflectionNamedType;
17	use ReflectionParameter;
18
19	/**
20	* @see \CodeIgniter\HTTP\FormRequestTest
21	*/
22	abstract class FormRequest
23	{
24	/**
25	* The underlying HTTP request instance.
26	*/
27	protected IncomingRequest $request;
28
29	/**
30	* Data that passed validation (only the fields covered by rules()).
31	*
32	* @var array<string, mixed>
33	*/
34	private array $validatedData = [];
35
36	/**
37	* When called by the framework, the current IncomingRequest is injected
38	* explicitly. When instantiated manually (e.g. in tests), the constructor
39	* falls back to service('request').
40	*/
41	final public function __construct(?IncomingRequest $request = null)
42	{
43	$this->request = $request ?? service('request');	31✔
44	}
45
46	/**
47	* Validation rules for this request.
48	*
49	* Return an array of field => rules pairs, identical to what you would
50	* pass to $this->validate() in a controller:
51	*
52	* return [
53	* 'title' => 'required\|min_length[5]',
54	* 'body' => ['required', 'max_length[10000]'],
55	* ];
56	*
57	* @return array<string, list<string>\|string>
58	*/
59	abstract public function rules(): array;
60
61	/**
62	* Custom error messages keyed by field.rule.
63	*
64	* return [
65	* 'title' => ['required' => 'Post title cannot be empty.'],
66	* ];
67	*
68	* @return array<string, array<string, string>\|string>
69	*/
70	public function messages(): array
71	{
72	return [];	24✔
73	}
74
75	/**
76	* Determine if the current user is authorized to make this request.
77	*
78	* Override in subclasses to add authorization logic:
79	*
80	* public function isAuthorized(): bool
81	* {
82	* return auth()->user()->can('create-posts');
83	* }
84	*/
85	public function isAuthorized(): bool
86	{
87	return true;	24✔
88	}
89
90	/**
91	* Returns the class name when the given reflection parameter is typed as a
92	* FormRequest subclass, or null otherwise. Used by the dispatcher and
93	* auto-router to distinguish injectable parameters from URI-segment parameters.
94	*
95	* @internal
96	*
97	* @return class-string<self>\|null
98	*/
99	public static function getFormRequestClass(ReflectionParameter $param): ?string
100	{
101	$type = $param->getType();	47✔
102
103	if (
104	$type instanceof ReflectionNamedType	47✔
105	&& ! $type->isBuiltin()	47✔
106	&& is_subclass_of($type->getName(), self::class)	47✔
107	) {
108	return $type->getName();	11✔
109	}
110
111	return null;	40✔
112	}
113
114	/**
115	* Modify the request data before validation rules are applied.
116	* Override to normalize or cast input values:
117	*
118	* protected function prepareForValidation(array $data): array
119	* {
120	* $data['slug'] = url_title($data['title'] ?? '', '-', true);
121	* return $data;
122	* }
123	*
124	* The $data array is the same payload that will be passed to the
125	* validator. Return the (possibly modified) array.
126	*
127	* @param array<string, mixed> $data
128	*
129	* @return array<string, mixed>
130	*/
131	protected function prepareForValidation(array $data): array
132	{
133	return $data;	22✔
134	}
135
136	/**
137	* Called when validation fails. Override to customize the failure response.
138	*
139	* The default implementation redirects back with input and flashes validation
140	* errors via the standard ``_ci_validation_errors`` channel (the same channel
141	* used by controller-level validation and readable by ``validation_errors()``
142	* helpers). For JSON/AJAX requests it returns a 422 JSON response instead.
143	*
144	* @param array<string, string> $errors
145	*/
146	protected function failedValidation(array $errors): ResponseInterface
147	{
148	if ($this->request->is('json') \|\| $this->request->isAJAX()) {	8✔
149	return service('response')->setStatusCode(422)->setJSON(['errors' => $errors]);	5✔
150	}
151
152	return redirect()->back()->withInput();	3✔
153	}
154
155	/**
156	* Called when the isAuthorized() check returns false. Override to customize.
157	*/
158	protected function failedAuthorization(): ResponseInterface
159	{
160	return service('response')->setStatusCode(403);	3✔
161	}
162
163	/**
164	* Returns only the fields that passed validation (those covered by rules()).
165	*
166	* Prefer this over $this->request->getPost() in controllers to avoid
167	* processing fields that were not declared in the rules.
168	*
169	* @return array<string, mixed>
170	*/
171	public function validated(): array
172	{
173	return $this->validatedData;	11✔
174	}
175
176	/**
177	* Returns a single validated field value by name, or null if the field
178	* is not present in the validated data (either not declared in rules() or
179	* validation has not yet run).
180	*
181	* Allows accessing individual fields as object properties:
182	*
183	* $title = $request->title;
184	*
185	* @return mixed
186	*/
187	public function __get(string $name)
188	{
189	return $this->validatedData[$name] ?? null;	3✔
190	}
191
192	/**
193	* Returns true when the named field exists in the validated data and its
194	* value is not null. Mirrors standard PHP isset() semantics on properties:
195	*
196	* if (isset($request->title)) { ... }
197	*/
198	public function __isset(string $name): bool
199	{
200	return isset($this->validatedData[$name]);	2✔
201	}
202
203	/**
204	* Returns the data to be validated.
205	*
206	* Override this method to provide custom data or to merge data from
207	* multiple sources. By default, data is sourced from the appropriate
208	* part of the request based on HTTP method and Content-Type:
209	*
210	* - JSON (any method) - decoded JSON body
211	* - PUT / PATCH / DELETE - raw body (unless multipart/form-data)
212	* - GET / HEAD - query-string parameters
213	* - Everything else (POST) - POST body
214	*
215	* @return array<string, mixed>
216	*/
217	protected function validationData(): array
218	{
219	$contentType = $this->request->getHeaderLine('Content-Type');	22✔
220
221	if (str_contains($contentType, 'application/json')) {	22✔
222	return $this->request->getJSON(true) ?? [];	3✔
223	}
224
225	if (
226	in_array($this->request->getMethod(), [Method::PUT, Method::PATCH, Method::DELETE], true)	19✔
227	&& ! str_contains($contentType, 'multipart/form-data')	19✔
228	) {
NEW 229	return $this->request->getRawInput() ?? [];	×
230	}
231
232	if (in_array($this->request->getMethod(), [Method::GET, Method::HEAD], true)) {	19✔
NEW 233	return $this->request->getGet() ?? [];	×
234	}
235
236	return $this->request->getPost() ?? [];	19✔
237	}
238
239	/**
240	* Runs authorization and validation. Called by the framework before
241	* injecting the FormRequest into the controller method.
242	*
243	* Returns null on success, or a ResponseInterface to short-circuit the
244	* request when authorization or validation fails.
245	*
246	* Do not call this method directly unless you are inside a ``_remap()``
247	* method, where automatic injection is not available.
248	*
249	* @internal
250	*/
251	final public function resolveRequest(): ?ResponseInterface
252	{
253	if (! $this->isAuthorized()) {	27✔
254	return $this->failedAuthorization();	4✔
255	}
256
257	$data = $this->prepareForValidation($this->validationData());	23✔
258
259	$validation = service('validation')	23✔
260	->setRules($this->rules(), $this->messages());	23✔
261
262	if (! $validation->run($data)) {	23✔
263	return $this->failedValidation($validation->getErrors());	9✔
264	}
265
266	$this->validatedData = $validation->getValidated();	14✔
267
268	return null;	14✔
269	}
270	}

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