Update README.md

Fix Lets Encrypt root cert error

README.md

@@ -1,3 +1,7 @@
+# === Warning ===
+
+This is the old BitPay based PHP client and should be considered deprecated (even though it currently still works). If you are building something from scratch, [use the new Greenfield API](https://github.com/btcpayserver/btcpayserver-greenfield-php).
+
 bitpay/php-bitpay-client
 =================
 

src/Bitpay/Client/Adapter/CurlAdapter.php

@@ -103,7 +103,6 @@ class CurlAdapter implements AdapterInterface
             CURLOPT_TIMEOUT        => 10,
             CURLOPT_SSL_VERIFYPEER => 1,
             CURLOPT_SSL_VERIFYHOST => 2,
-            CURLOPT_CAINFO         => __DIR__.'/ca-bundle.crt',
             CURLOPT_RETURNTRANSFER => true,
             CURLOPT_FORBID_REUSE   => 1,
             CURLOPT_FRESH_CONNECT  => 1,

src/Bitpay/Client/Client.php

@@ -121,7 +121,7 @@ class Client implements ClientInterface
             ->setBtcPrice(array_key_exists('btcPrice', $data) ? $data['btcPrice'] : '')
             ->setPrice($data['price'])
             ->setTaxIncluded($data['taxIncluded'])
-            ->setCurrency(new \Bitpay\Currency($data['currency']))
+            ->setCurrency(new \Bitpay\CurrencyUnrestricted($data['currency']))
             ->setOrderId(array_key_exists('orderId', $data) ? $data['orderId'] : '')
             ->setInvoiceTime($invoiceTime)
             ->setExpirationTime($expirationTime)
@@ -183,6 +183,7 @@ class Client implements ClientInterface
             'guid'              => Util::guid(),
             'nonce'             => Util::nonce(),
             'token'             => $this->token->getToken(),
+            'paymentCurrencies' => $invoice->getPaymentCurrencies(),
         );
 
         foreach(array_keys($body) as $key) {

src/Bitpay/Client/ClientInterface.php

@@ -26,7 +26,7 @@ interface ClientInterface
      * @see RFC2616 section 14.43 for User-Agent Format
      */
     const NAME    = 'BitPay PHP-Client BTCPAY';
-    const VERSION = '2.2.22';
+    const VERSION = '2.2.23';
 
     //public function createApplication(ApplicationInterface $application);
 

src/Bitpay/CurrencyUnrestricted.php

@@ -0,0 +1,16 @@
+<?php
+
+namespace Bitpay;
+
+class CurrencyUnrestricted extends Currency
+{
+  /**
+   * Overrides the parent method to allow any currency symbol to be set.
+   */
+  public function setCode($code)
+  {
+    $this->code = $code;
+
+    return $this;
+  }
+}

src/Bitpay/Invoice.php

@@ -155,6 +155,10 @@ class Invoice implements InvoiceInterface
      */
     protected $paymentTotals;
 
+    /**
+     * @var array
+     */
+    protected $paymentCurrencies;
 
     /**
      * @inheritdoc
@@ -919,4 +923,21 @@ class Invoice implements InvoiceInterface
 
         return $this;
     }
+
+
+    /**
+     * @inheritdoc
+     */
+    public function getPaymentCurrencies() {
+      return $this->paymentCurrencies;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function setPaymentCurrencies($paymentCurrencies) {
+      $this->paymentCurrencies = $paymentCurrencies;
+
+      return $this;
+    }
 }

src/Bitpay/InvoiceInterface.php

@@ -379,4 +379,22 @@ interface InvoiceInterface
      * @return array|object
      */
     public function getRefundAddresses();
+
+    /**
+     * Get the enforced transaction currencies.
+     *
+     * @return array|null
+     */
+    public function getPaymentCurrencies();
+
+    /**
+     * Set specific invoice currencies and to enforce them on payment step.
+     *
+     * @param array $paymentCurrencies
+     *   The currencies need to match what is supported by BTCPay Server.
+     *   E.g. BTC, BTC_ONCHAIN, BTC_OFFCHAIN, LTC, XMR_MONEROLIKE etc.
+     *
+     * @return InvoiceInterface
+     */
+    public function setPaymentCurrencies($paymentCurrencies);
 }