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<?php |
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namespace Swaggest\JsonSchema\Constraint; |
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use Swaggest\JsonSchema\Context; |
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use Swaggest\JsonSchema\Exception\ContentException; |
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class Content |
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{ |
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const MEDIA_TYPE_APPLICATION_JSON = 'application/json'; |
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const ENCODING_BASE64 = 'base64'; |
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const BASE64_INVALID_REGEX = '_[^A-Za-z0-9+/=]+_'; |
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/** |
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* @param Context $options |
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* @param string|null $encoding |
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* @param string|null $mediaType |
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* @param string $data |
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* @param bool $import |
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* @return bool|mixed|string |
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* @throws ContentException |
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*/ |
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public static function process(Context $options, $encoding, $mediaType, $data, $import = true) |
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{ |
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if ($import) { |
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if ($encoding !== null) { |
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switch ($encoding) { |
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case self::ENCODING_BASE64: |
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if ($options->strictBase64Validation && preg_match(self::BASE64_INVALID_REGEX, $data)) { |
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throw new ContentException('Invalid base64 string'); |
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} |
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$data = base64_decode($data); |
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if ($data === false && !$options->skipValidation) { // @phpstan-ignore-line |
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throw new ContentException('Unable to decode base64'); |
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} |
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break; |
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} |
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} |
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if ($mediaType !== null && $data !== false) { |
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switch ($mediaType) { |
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case self::MEDIA_TYPE_APPLICATION_JSON: |
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$data = json_decode($data); |
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$lastErrorCode = json_last_error(); |
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if (($lastErrorCode !== JSON_ERROR_NONE) && !$options->skipValidation) { |
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// TODO add readable error message |
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throw new ContentException('Unable to decode json, err code: ' . $lastErrorCode); |
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} |
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break; |
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} |
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} |
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return $data; |
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} else { |
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// export |
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if ($mediaType !== null) { |
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switch ($mediaType) { |
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case self::MEDIA_TYPE_APPLICATION_JSON: |
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$data = json_encode($data); |
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$lastErrorCode = json_last_error(); |
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if (($lastErrorCode !== JSON_ERROR_NONE) && !$options->skipValidation) { |
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// TODO add readable error message |
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throw new ContentException('Unable to encode json, err code: ' . $lastErrorCode); |
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} |
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break; |
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} |
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} |
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if ($encoding !== null && $data !== false) { |
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switch ($encoding) { |
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case self::ENCODING_BASE64: |
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$data = base64_encode($data); |
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break; |
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} |
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} |
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return $data; |
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} |
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} |
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} |