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Added README.md appinfo/info.xml appinfo/signature.json lib/Controller/AuthorApiController.php and the providers directory

DoubleBastionAdmin authored on 20/08/2022 16:33:00
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providers/Telnyx/vendor/telnyx/telnyx-php/lib/Webhook.php
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+<?php
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+
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+namespace Telnyx;
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+
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+abstract class Webhook
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+{
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+    const DEFAULT_TOLERANCE = 300;
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+
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+    /**
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+     * Alias for constructEvent().
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+     * Returns an Event instance using the current HTTPS request. Throws an
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+     * Exception\UnexpectedValueException if the payload is not valid JSON, and
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+     * an Exception\SignatureVerificationException if the signature
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+     * verification fails for any reason.
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+     *
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+     * @param string $public_key secret used to generate the signature
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+     * @param int $tolerance maximum difference allowed between the header's
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+     *  timestamp and the current time
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+     *
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+     * @throws Exception\UnexpectedValueException if the payload is not valid JSON,
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+     * @throws Exception\SignatureVerificationException if the verification fails
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+     *
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+     * @return Event the Event instance
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+     */
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+    public static function constructFromRequest($public_key = '', $tolerance = self::DEFAULT_TOLERANCE)
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+    {
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+        if (!isset($_SERVER['HTTP_TELNYX_SIGNATURE_ED25519']) || !isset($_SERVER['HTTP_TELNYX_TIMESTAMP'])) {
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+            throw Exception\SignatureVerificationException::factory(
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+                'Unable to extract timestamp and signatures from header'
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+            );
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+        }
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+
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+        $payload = @file_get_contents('php://input');
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+        $sig_header = $_SERVER['HTTP_TELNYX_SIGNATURE_ED25519'];
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+        $timestamp_header = $_SERVER['HTTP_TELNYX_TIMESTAMP'];
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+
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+        return \Telnyx\Webhook::constructEvent(
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+            $payload, $sig_header, $timestamp_header, $public_key, $tolerance
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+        );
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+    }
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+
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+    /**
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+     * Returns an Event instance using the provided JSON payload. Throws an
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+     * Exception\UnexpectedValueException if the payload is not valid JSON, and
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+     * an Exception\SignatureVerificationException if the signature
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+     * verification fails for any reason.
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+     *
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+     * @param string $payload the payload sent by Telnyx
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+     * @param string $signature_header the contents of the signature header sent by Telnyx
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+     * @param string $timestamp the timestamp from the header sent by Telnyx
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+     * @param string $public_key secret used to generate the signature
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+     * @param int $tolerance maximum difference allowed between the header's
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+     *  timestamp and the current time
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+     *
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+     * @throws Exception\UnexpectedValueException if the payload is not valid JSON,
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+     * @throws Exception\SignatureVerificationException if the verification fails
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+     *
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+     * @return Event the Event instance
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+     */
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+    public static function constructEvent($payload, $signature_header, $timestamp, $public_key = '', $tolerance = self::DEFAULT_TOLERANCE)
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+    {
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+        WebhookSignature::verifyHeader($payload, $signature_header, $timestamp, $public_key, $tolerance);
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+
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+        $data = \json_decode($payload, true);
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+        $jsonError = \json_last_error();
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+        if (null === $data && \JSON_ERROR_NONE !== $jsonError) {
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+            $msg = "Invalid payload: {$payload} "
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+              . "(json_last_error() was {$jsonError})";
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+
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+            throw new Exception\UnexpectedValueException($msg);
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+        }
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+
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+        return Event::constructFrom($data);
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+    }
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+}