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Add captcha image generation functionality.

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This commit is contained in:
Leonid Nikitin
2023-06-28 17:29:56 +06:00
parent 81635b4efa
commit a35b8db281
26 changed files with 1211 additions and 5 deletions
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144
app/Captcha/Config/ImageBody.php Normal file
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<?php declare(strict_types=1);
namespace App\Captcha\Config;
use App\Captcha\Exceptions\CaptchaException;
use Illuminate\Support\Arr;
final readonly class ImageBody
{
public function __construct(
private array $backgrounds,
private array $fonts,
private array $fontColors,
private int $width = 300,
private int $height = 240,
private int $angle = 20,
private array | int $fontSize = [20, 50],
private int $numberLines = 3,
private array $lineColors = []
) {
if ($this->width <= 0) {
throw new CaptchaException('Incorrect $width settings.');
}
if ($this->height <= 0) {
throw new CaptchaException('Incorrect $height settings.');
}
if (count($this->backgrounds) < 1) {
throw new CaptchaException('Invalid $backgrounds parameter.');
}
if (count($this->fonts) < 1) {
throw new CaptchaException('Invalid $fonts parameter.');
}
if (count($this->fontColors) < 1) {
throw new CaptchaException('Invalid $fontColors parameter.');
}
if ($this->angle < 0) {
throw new CaptchaException('Incorrect $angle settings.');
}
if (!is_integer($this->fontSize) && !is_array($this->fontSize)) {
throw new CaptchaException('The $fontSize parameter is not an array or integer.');
} elseif (is_array($this->fontSize)) {
if (count($this->fontSize) > 2) {
throw new CaptchaException('The array of $fontSize parameters contains more than 2 keys.');
}
if ($this->fontSize[0] > $this->fontSize[1]) {
throw new CaptchaException('The number of $fontSize[1] is less than $fontSize[0].');
}
}
}
/**
* @return array
*/
public function getBackgrounds(): array
{
return $this->backgrounds;
}
public function randomBackground(): string
{
return Arr::random($this->getBackgrounds());
}
/**
* @return array
*/
public function getFonts(): array
{
return $this->fonts;
}
public function randomFont(): string
{
return Arr::random($this->getFonts());
}
/**
* @return array
*/
public function getFontColors(): array
{
return $this->fontColors;
}
public function randomFontColor(): string
{
return Arr::random($this->getFontColors());
}
/**
* @return int
*/
public function getWidth(): int
{
return $this->width;
}
/**
* @return int
*/
public function getHeight(): int
{
return $this->height;
}
/**
* @return int
*/
public function getAngle(): int
{
return $this->angle;
}
public function randomAngle(): int
{
return mt_rand($this->getAngle() * -1, $this->getAngle());
}
public function getNumberLines(): int
{
return $this->numberLines;
}
public function fontSize(): int
{
$fontSize = $this->fontSize;
if (is_integer($fontSize)) {
return $fontSize;
}
if (empty($fontSize[1])) {
return $fontSize[0];
}
return random_int($fontSize[0], $fontSize[1]);
}
/**
* @return array
*/
public function getLineColors(): array
{
return $this->lineColors;
}
}

147
app/Captcha/Config/ImageHead.php Normal file
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<?php declare(strict_types=1);
namespace App\Captcha\Config;
use App\Captcha\Exceptions\CaptchaException;
use Illuminate\Support\Arr;
final readonly class ImageHead
{
public function __construct(
private array $backgrounds,
private array $fonts,
private array $fontColors,
private int $width = 150,
private int $height = 40,
private int $textPaddingTop = 5,
private int $textPaddingLeft = 10,
private int $angle = 20,
private int $numberLines = 3,
private array $lineColors = []
) {
if ($this->width <= 0) {
throw new CaptchaException('Incorrect $width settings.');
}
if ($this->height <= 0) {
throw new CaptchaException('Incorrect $height settings.');
}
if ($this->textPaddingTop < 0) {
throw new CaptchaException('Incorrect $textPaddingTop settings.');
}
if ($this->textPaddingLeft < 0) {
throw new CaptchaException('Incorrect $textPaddingLeft settings.');
}
if (count($this->backgrounds) < 1) {
throw new CaptchaException('Invalid $backgrounds parameter.');
}
if (count($this->fonts) < 1) {
throw new CaptchaException('Invalid $fonts parameter.');
}
if (count($this->fontColors) < 1) {
throw new CaptchaException('Invalid $fontColors parameter.');
}
if ($this->angle < 0) {
throw new CaptchaException('Incorrect $angle settings.');
}
if ($this->numberLines < 0) {
throw new CaptchaException('Incorrect $numberLines settings.');
}
}
/**
* @return array
*/
public function getBackgrounds(): array
{
return $this->backgrounds;
}
public function randomBackground(): string
{
return Arr::random($this->getBackgrounds());
}
/**
* @return array
*/
public function getFonts(): array
{
return $this->fonts;
}
public function randomFont(): string
{
return Arr::random($this->getFonts());
}
/**
* @return array
*/
public function getFontColors(): array
{
return $this->fontColors;
}
public function randomFontColor(): string
{
return Arr::random($this->getFontColors());
}
/**
* @return int
*/
public function getWidth(): int
{
return $this->width;
}
/**
* @return int
*/
public function getHeight(): int
{
return $this->height;
}
/**
* @return int
*/
public function getTextPaddingTop(): int
{
return $this->textPaddingTop;
}
/**
* @return int
*/
public function getTextPaddingLeft(): int
{
return $this->textPaddingLeft;
}
/**
* @return int
*/
public function getAngle(): int
{
return $this->angle;
}
public function randomAngle(): int
{
return mt_rand($this->getAngle() * -1, $this->getAngle());
}
public function getNumberLines(): int
{
return $this->numberLines;
}
/**
* @return array
*/
public function getLineColors(): array
{
return $this->lineColors;
}
}