Proven Expertise
Our team brings years of experience in the digital payments industry to provide reliable services.
<?php
declare(strict_types=1);
namespace GuzzleHttp\Psr7;
use Psr\Http\Message\MessageInterface;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
final class Message
{
/**
* Returns the string representation of an HTTP message.
*
* @param MessageInterface $message Message to convert to a string.
*/
public static function toString(MessageInterface $message): string
{
if ($message instanceof RequestInterface) {
$msg = trim($message->getMethod().' '
.$message->getRequestTarget())
.' HTTP/'.$message->getProtocolVersion();
if (!$message->hasHeader('host')) {
$msg .= "\r\nHost: ".$message->getUri()->getHost();
}
} elseif ($message instanceof ResponseInterface) {
$msg = 'HTTP/'.$message->getProtocolVersion().' '
.$message->getStatusCode().' '
.$message->getReasonPhrase();
} else {
throw new \InvalidArgumentException('Unknown message type');
}
foreach ($message->getHeaders() as $name => $values) {
if (is_string($name) && strtolower($name) === 'set-cookie') {
foreach ($values as $value) {
$msg .= "\r\n{$name}: ".$value;
}
} else {
$msg .= "\r\n{$name}: ".implode(', ', $values);
}
}
return "{$msg}\r\n\r\n".$message->getBody();
}
/**
* Get a short summary of the message body.
*
* Will return `null` if the response is not printable.
*
* @param MessageInterface $message The message to get the body summary
* @param int $truncateAt The maximum allowed size of the summary
*/
public static function bodySummary(MessageInterface $message, int $truncateAt = 120): ?string
{
$body = $message->getBody();
if (!$body->isSeekable() || !$body->isReadable()) {
return null;
}
$size = $body->getSize();
if ($size === 0) {
return null;
}
$body->rewind();
$summary = $body->read($truncateAt);
$body->rewind();
if ($size > $truncateAt) {
$summary .= ' (truncated...)';
}
// Matches any printable character, including unicode characters:
// letters, marks, numbers, punctuation, spacing, and separators.
if (preg_match('/[^\pL\pM\pN\pP\pS\pZ\n\r\t]/u', $summary) !== 0) {
return null;
}
return $summary;
}
/**
* Attempts to rewind a message body and throws an exception on failure.
*
* The body of the message will only be rewound if a call to `tell()`
* returns a value other than `0`.
*
* @param MessageInterface $message Message to rewind
*
* @throws \RuntimeException
*/
public static function rewindBody(MessageInterface $message): void
{
$body = $message->getBody();
if ($body->tell()) {
$body->rewind();
}
}
/**
* Parses an HTTP message into an associative array.
*
* The array contains the "start-line" key containing the start line of
* the message, "headers" key containing an associative array of header
* array values, and a "body" key containing the body of the message.
*
* @param string $message HTTP request or response to parse.
*/
public static function parseMessage(string $message): array
{
if (!$message) {
throw new \InvalidArgumentException('Invalid message');
}
$message = ltrim($message, "\r\n");
$messageParts = preg_split("/\r?\n\r?\n/", $message, 2);
if ($messageParts === false || count($messageParts) !== 2) {
throw new \InvalidArgumentException('Invalid message: Missing header delimiter');
}
[$rawHeaders, $body] = $messageParts;
$rawHeaders .= "\r\n"; // Put back the delimiter we split previously
$headerParts = preg_split("/\r?\n/", $rawHeaders, 2);
if ($headerParts === false || count($headerParts) !== 2) {
throw new \InvalidArgumentException('Invalid message: Missing status line');
}
[$startLine, $rawHeaders] = $headerParts;
if (preg_match("/(?:^HTTP\/|^[A-Z]+ \S+ HTTP\/)(\d+(?:\.\d+)?)/i", $startLine, $matches) && $matches[1] === '1.0') {
// Header folding is deprecated for HTTP/1.1, but allowed in HTTP/1.0
$rawHeaders = preg_replace(Rfc7230::HEADER_FOLD_REGEX, ' ', $rawHeaders);
}
/** @var array[] $headerLines */
$count = preg_match_all(Rfc7230::HEADER_REGEX, $rawHeaders, $headerLines, PREG_SET_ORDER);
// If these aren't the same, then one line didn't match and there's an invalid header.
if ($count !== substr_count($rawHeaders, "\n")) {
// Folding is deprecated, see https://datatracker.ietf.org/doc/html/rfc7230#section-3.2.4
if (preg_match(Rfc7230::HEADER_FOLD_REGEX, $rawHeaders)) {
throw new \InvalidArgumentException('Invalid header syntax: Obsolete line folding');
}
throw new \InvalidArgumentException('Invalid header syntax');
}
$headers = [];
foreach ($headerLines as $headerLine) {
$headers[$headerLine[1]][] = $headerLine[2];
}
return [
'start-line' => $startLine,
'headers' => $headers,
'body' => $body,
];
}
/**
* Constructs a URI for an HTTP request message.
*
* @param string $path Path from the start-line
* @param array $headers Array of headers (each value an array).
*/
public static function parseRequestUri(string $path, array $headers): string
{
$hostKey = array_filter(array_keys($headers), function ($k) {
// Numeric array keys are converted to int by PHP.
$k = (string) $k;
return strtolower($k) === 'host';
});
// If no host is found, then a full URI cannot be constructed.
if (!$hostKey) {
return $path;
}
$host = $headers[reset($hostKey)][0];
$scheme = substr($host, -4) === ':443' ? 'https' : 'http';
return $scheme.'://'.$host.'/'.ltrim($path, '/');
}
/**
* Parses a request message string into a request object.
*
* @param string $message Request message string.
*/
public static function parseRequest(string $message): RequestInterface
{
$data = self::parseMessage($message);
$matches = [];
if (!preg_match('/^[\S]+\s+([a-zA-Z]+:\/\/|\/).*/', $data['start-line'], $matches)) {
throw new \InvalidArgumentException('Invalid request string');
}
$parts = explode(' ', $data['start-line'], 3);
$version = isset($parts[2]) ? explode('/', $parts[2])[1] : '1.1';
$request = new Request(
$parts[0],
$matches[1] === '/' ? self::parseRequestUri($parts[1], $data['headers']) : $parts[1],
$data['headers'],
$data['body'],
$version
);
return $matches[1] === '/' ? $request : $request->withRequestTarget($parts[1]);
}
/**
* Parses a response message string into a response object.
*
* @param string $message Response message string.
*/
public static function parseResponse(string $message): ResponseInterface
{
$data = self::parseMessage($message);
// According to https://datatracker.ietf.org/doc/html/rfc7230#section-3.1.2
// the space between status-code and reason-phrase is required. But
// browsers accept responses without space and reason as well.
if (!preg_match('/^HTTP\/.* [0-9]{3}( .*|$)/', $data['start-line'])) {
throw new \InvalidArgumentException('Invalid response string: '.$data['start-line']);
}
$parts = explode(' ', $data['start-line'], 3);
return new Response(
(int) $parts[1],
$data['headers'],
$data['body'],
explode('/', $parts[0])[1],
$parts[2] ?? null
);
}
}
How it Works
Getting started with NFC Pay is simple and quick. Register your account, add your cards, and you're ready to make payments in no time. Whether you're paying at a store, sending money to a friend, or managing your merchant transactions, NFC Pay makes it easy and secure.
Download the NFC Pay app and sign up with your email or phone number. Complete the registration process by verifying your identity, and set up your secure PIN to protect your account.
Link your debit or credit cards to your NFC Pay wallet. Simply scan your card or enter the details manually, and you’re set to load funds, shop, and pay with ease.
To pay, simply tap your phone or scan the QR code at checkout. You can also transfer money to other users with a few taps. Enjoy fast, contactless payments with top-notch security.
Security System
NFC Pay prioritizes your security with advanced features that safeguard every transaction. From SMS or email verification to end-to-end encryption, we've implemented robust measures to ensure your data is always protected. Our security systems are designed to prevent unauthorized access and provide you with a safe and reliable payment experience.
Receive instant alerts for every transaction to keep track of your account activities.
Verify your identity through our Know Your Customer process to prevent fraud and enhance security.
Dramatically supply transparent backward deliverables before caward comp internal or "organic" sources.
All your data and transactions are encrypted, ensuring that your sensitive information remains private.
Monitor unusual activity patterns to detect and prevent suspicious behavior in real-time.
Why Choice Us
With NFC Pay, you get a trusted platform backed by proven expertise and a commitment to quality. We put our customers first, offering innovative solutions tailored to your needs, ensuring every transaction is secure, swift, and seamless.
Our team brings years of experience in the digital payments industry to provide reliable services.
We prioritize excellence, ensuring that every aspect of our platform meets the highest standards.
Your needs drive our solutions, and we are dedicated to delivering a superior user experience.
We continuously evolve, integrating the latest technologies to enhance your payment experience.
Testimonial Section
Hear from our users who trust NFC Pay for their everyday transactions. Our commitment to security, ease of use, and exceptional service shines through in their experiences. See why our clients choose NFC Pay for their payment needs and how it has transformed the way they manage their finances.
App Section
Unlock the full potential of NFC Pay by downloading our app, designed to bring secure, swift, and smart transactions to your fingertips. Whether you're paying at a store, transferring money to friends, or managing your business payments, the NFC Pay app makes it effortless. Available on both iOS and Android, it's your all-in-one solution for convenient and reliable digital payments. Download now and experience the future of payments!