Updated mailgun plugin

4 files changed, 499 insertions, 0 deletions

diff --git a/inc/mailgun/php-http/multipart-stream-builder/src/ApacheMimetypeHelper.php b/inc/mailgun/php-http/multipart-stream-builder/src/ApacheMimetypeHelper.php
new file mode 100644
index 0000000..6e4ca66
--- /dev/null
+++ b/inc/mailgun/php-http/multipart-stream-builder/src/ApacheMimetypeHelper.php
@@ -0,0 +1,142 @@
+<?php
+
+namespace Http\Message\MultipartStream;
+
+/**
+ * This class helps to find the proper mime types. The source of this file is taken
+ * from Guzzle.
+ *
+ * @author Michael Dowling and contributors to guzzlehttp/psr7
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class ApacheMimetypeHelper implements MimetypeHelper
+{
+    /**
+     * {@inheritdoc}
+     *
+     * @see http://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x/conf/mime.types
+     */
+    public function getMimetypeFromFilename($filename)
+    {
+        return $this->getMimetypeFromExtension(pathinfo($filename, PATHINFO_EXTENSION));
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @see http://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x/conf/mime.types
+     */
+    public function getMimetypeFromExtension($extension)
+    {
+        static $mimetypes = [
+            '7z' => 'application/x-7z-compressed',
+            'aac' => 'audio/x-aac',
+            'ai' => 'application/postscript',
+            'aif' => 'audio/x-aiff',
+            'asc' => 'text/plain',
+            'asf' => 'video/x-ms-asf',
+            'atom' => 'application/atom+xml',
+            'avi' => 'video/x-msvideo',
+            'bmp' => 'image/bmp',
+            'bz2' => 'application/x-bzip2',
+            'cer' => 'application/pkix-cert',
+            'crl' => 'application/pkix-crl',
+            'crt' => 'application/x-x509-ca-cert',
+            'css' => 'text/css',
+            'csv' => 'text/csv',
+            'cu' => 'application/cu-seeme',
+            'deb' => 'application/x-debian-package',
+            'doc' => 'application/msword',
+            'docx' => 'application/vnd.openxmlformats-officedocument.wordprocessingml.document',
+            'dvi' => 'application/x-dvi',
+            'eot' => 'application/vnd.ms-fontobject',
+            'eps' => 'application/postscript',
+            'epub' => 'application/epub+zip',
+            'etx' => 'text/x-setext',
+            'flac' => 'audio/flac',
+            'flv' => 'video/x-flv',
+            'gif' => 'image/gif',
+            'gz' => 'application/gzip',
+            'htm' => 'text/html',
+            'html' => 'text/html',
+            'ico' => 'image/x-icon',
+            'ics' => 'text/calendar',
+            'ini' => 'text/plain',
+            'iso' => 'application/x-iso9660-image',
+            'jar' => 'application/java-archive',
+            'jpe' => 'image/jpeg',
+            'jpeg' => 'image/jpeg',
+            'jpg' => 'image/jpeg',
+            'js' => 'text/javascript',
+            'json' => 'application/json',
+            'latex' => 'application/x-latex',
+            'log' => 'text/plain',
+            'm4a' => 'audio/mp4',
+            'm4v' => 'video/mp4',
+            'mid' => 'audio/midi',
+            'midi' => 'audio/midi',
+            'mov' => 'video/quicktime',
+            'mp3' => 'audio/mpeg',
+            'mp4' => 'video/mp4',
+            'mp4a' => 'audio/mp4',
+            'mp4v' => 'video/mp4',
+            'mpe' => 'video/mpeg',
+            'mpeg' => 'video/mpeg',
+            'mpg' => 'video/mpeg',
+            'mpg4' => 'video/mp4',
+            'oga' => 'audio/ogg',
+            'ogg' => 'audio/ogg',
+            'ogv' => 'video/ogg',
+            'ogx' => 'application/ogg',
+            'pbm' => 'image/x-portable-bitmap',
+            'pdf' => 'application/pdf',
+            'pgm' => 'image/x-portable-graymap',
+            'png' => 'image/png',
+            'pnm' => 'image/x-portable-anymap',
+            'ppm' => 'image/x-portable-pixmap',
+            'ppt' => 'application/vnd.ms-powerpoint',
+            'pptx' => 'application/vnd.openxmlformats-officedocument.presentationml.presentation',
+            'ps' => 'application/postscript',
+            'qt' => 'video/quicktime',
+            'rar' => 'application/x-rar-compressed',
+            'ras' => 'image/x-cmu-raster',
+            'rss' => 'application/rss+xml',
+            'rtf' => 'application/rtf',
+            'sgm' => 'text/sgml',
+            'sgml' => 'text/sgml',
+            'svg' => 'image/svg+xml',
+            'swf' => 'application/x-shockwave-flash',
+            'tar' => 'application/x-tar',
+            'tif' => 'image/tiff',
+            'tiff' => 'image/tiff',
+            'torrent' => 'application/x-bittorrent',
+            'ttf' => 'application/x-font-ttf',
+            'txt' => 'text/plain',
+            'wav' => 'audio/x-wav',
+            'webm' => 'video/webm',
+            'wma' => 'audio/x-ms-wma',
+            'wmv' => 'video/x-ms-wmv',
+            'woff' => 'application/x-font-woff',
+            'wsdl' => 'application/wsdl+xml',
+            'xbm' => 'image/x-xbitmap',
+            'xls' => 'application/vnd.ms-excel',
+            'xlsx' => 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
+            'xml' => 'application/xml',
+            'xpm' => 'image/x-xpixmap',
+            'xwd' => 'image/x-xwindowdump',
+            'yaml' => 'text/yaml',
+            'yml' => 'text/yaml',
+            'zip' => 'application/zip',
+
+            // Non-Apache standard
+            'pkpass' => 'application/vnd.apple.pkpass',
+            'msg' => 'application/vnd.ms-outlook',
+        ];
+
+        $extension = strtolower($extension);
+
+        return isset($mimetypes[$extension])
+            ? $mimetypes[$extension]
+            : null;
+    }
+}
diff --git a/inc/mailgun/php-http/multipart-stream-builder/src/CustomMimetypeHelper.php b/inc/mailgun/php-http/multipart-stream-builder/src/CustomMimetypeHelper.php
new file mode 100644
index 0000000..9f3f0d9
--- /dev/null
+++ b/inc/mailgun/php-http/multipart-stream-builder/src/CustomMimetypeHelper.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Http\Message\MultipartStream;
+
+/**
+ * Let you add your own mimetypes. The mimetype lookup will fallback on the ApacheMimeTypeHelper.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class CustomMimetypeHelper extends ApacheMimetypeHelper
+{
+    /**
+     * @var array
+     */
+    private $mimetypes = [];
+
+    /**
+     * @param array $mimetypes should be of type extension => mimetype
+     */
+    public function __construct(array $mimetypes = [])
+    {
+        $this->mimetypes = $mimetypes;
+    }
+
+    /**
+     * @param string $extension
+     * @param string $mimetype
+     *
+     * @return $this
+     */
+    public function addMimetype($extension, $mimetype)
+    {
+        $this->mimetypes[$extension] = $mimetype;
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * Check if we have any defined mimetypes and of not fallback to ApacheMimetypeHelper
+     */
+    public function getMimetypeFromExtension($extension)
+    {
+        $extension = strtolower($extension);
+
+        return isset($this->mimetypes[$extension])
+            ? $this->mimetypes[$extension]
+            : parent::getMimetypeFromExtension($extension);
+    }
+}
diff --git a/inc/mailgun/php-http/multipart-stream-builder/src/MimetypeHelper.php b/inc/mailgun/php-http/multipart-stream-builder/src/MimetypeHelper.php
new file mode 100644
index 0000000..fa7cf18
--- /dev/null
+++ b/inc/mailgun/php-http/multipart-stream-builder/src/MimetypeHelper.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace Http\Message\MultipartStream;
+
+/**
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+interface MimetypeHelper
+{
+    /**
+     * Determines the mimetype of a file by looking at its extension.
+     *
+     * @param string $filename
+     *
+     * @return null|string
+     */
+    public function getMimetypeFromFilename($filename);
+
+    /**
+     * Maps a file extensions to a mimetype.
+     *
+     * @param string $extension The file extension
+     *
+     * @return string|null
+     */
+    public function getMimetypeFromExtension($extension);
+}
diff --git a/inc/mailgun/php-http/multipart-stream-builder/src/MultipartStreamBuilder.php b/inc/mailgun/php-http/multipart-stream-builder/src/MultipartStreamBuilder.php
new file mode 100644
index 0000000..f8170b8
--- /dev/null
+++ b/inc/mailgun/php-http/multipart-stream-builder/src/MultipartStreamBuilder.php
@@ -0,0 +1,279 @@
+<?php
+
+namespace Http\Message\MultipartStream;
+
+use Http\Discovery\StreamFactoryDiscovery;
+use Http\Message\StreamFactory;
+use Psr\Http\Message\StreamInterface;
+
+/**
+ * Build your own Multipart stream. A Multipart stream is a collection of streams separated with a $bounary. This
+ * class helps you to create a Multipart stream with stream implementations from any PSR7 library.
+ *
+ * @author Michael Dowling and contributors to guzzlehttp/psr7
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class MultipartStreamBuilder
+{
+    /**
+     * @var StreamFactory
+     */
+    private $streamFactory;
+
+    /**
+     * @var MimetypeHelper
+     */
+    private $mimetypeHelper;
+
+    /**
+     * @var string
+     */
+    private $boundary;
+
+    /**
+     * @var array Element where each Element is an array with keys ['contents', 'headers', 'filename']
+     */
+    private $data = [];
+
+    /**
+     * @param StreamFactory|null $streamFactory
+     */
+    public function __construct(StreamFactory $streamFactory = null)
+    {
+        $this->streamFactory = $streamFactory ?: StreamFactoryDiscovery::find();
+    }
+
+    /**
+     * Add a resource to the Multipart Stream. If the same $name is used twice the first resource will
+     * be overwritten.
+     *
+     * @param string                          $name     the formpost name
+     * @param string|resource|StreamInterface $resource
+     * @param array                           $options  {
+     *
+     *     @var array $headers additional headers ['header-name' => 'header-value']
+     *     @var string $filename
+     * }
+     *
+     * @return MultipartStreamBuilder
+     */
+    public function addResource($name, $resource, array $options = [])
+    {
+        $stream = $this->streamFactory->createStream($resource);
+
+        // validate options['headers'] exists
+        if (!isset($options['headers'])) {
+            $options['headers'] = [];
+        }
+
+        // Try to add filename if it is missing
+        if (empty($options['filename'])) {
+            $options['filename'] = null;
+            $uri = $stream->getMetadata('uri');
+            if (substr($uri, 0, 6) !== 'php://') {
+                $options['filename'] = $uri;
+            }
+        }
+
+        $this->prepareHeaders($name, $stream, $options['filename'], $options['headers']);
+        $this->data[$name] = ['contents' => $stream, 'headers' => $options['headers'], 'filename' => $options['filename']];
+
+        return $this;
+    }
+
+    /**
+     * Build the stream.
+     *
+     * @return StreamInterface
+     */
+    public function build()
+    {
+        $streams = '';
+        foreach ($this->data as $data) {
+            // Add start and headers
+            $streams .= "--{$this->getBoundary()}\r\n".
+                $this->getHeaders($data['headers'])."\r\n";
+
+            // Convert the stream to string
+            /* @var $contentStream StreamInterface */
+            $contentStream = $data['contents'];
+            if ($contentStream->isSeekable()) {
+                $streams .= $contentStream->__toString();
+            } else {
+                $streams .= $contentStream->getContents();
+            }
+
+            $streams .= "\r\n";
+        }
+
+        // Append end
+        $streams .= "--{$this->getBoundary()}--\r\n";
+
+        return $this->streamFactory->createStream($streams);
+    }
+
+    /**
+     * Add extra headers if they are missing.
+     *
+     * @param string          $name
+     * @param StreamInterface $stream
+     * @param string          $filename
+     * @param array           &$headers
+     */
+    private function prepareHeaders($name, StreamInterface $stream, $filename, array &$headers)
+    {
+        $hasFilename = $filename === '0' || $filename;
+
+        // Set a default content-disposition header if one was not provided
+        if (!$this->hasHeader($headers, 'content-disposition')) {
+            $headers['Content-Disposition'] = sprintf('form-data; name="%s"', $name);
+            if ($hasFilename) {
+                $headers['Content-Disposition'] .= sprintf('; filename="%s"', $this->basename($filename));
+            }
+        }
+
+        // Set a default content-length header if one was not provided
+        if (!$this->hasHeader($headers, 'content-length')) {
+            if ($length = $stream->getSize()) {
+                $headers['Content-Length'] = (string) $length;
+            }
+        }
+
+        // Set a default Content-Type if one was not provided
+        if (!$this->hasHeader($headers, 'content-type') && $hasFilename) {
+            if ($type = $this->getMimetypeHelper()->getMimetypeFromFilename($filename)) {
+                $headers['Content-Type'] = $type;
+            }
+        }
+    }
+
+    /**
+     * Get the headers formatted for the HTTP message.
+     *
+     * @param array $headers
+     *
+     * @return string
+     */
+    private function getHeaders(array $headers)
+    {
+        $str = '';
+        foreach ($headers as $key => $value) {
+            $str .= sprintf("%s: %s\r\n", $key, $value);
+        }
+
+        return $str;
+    }
+
+    /**
+     * Check if header exist.
+     *
+     * @param array  $headers
+     * @param string $key     case insensitive
+     *
+     * @return bool
+     */
+    private function hasHeader(array $headers, $key)
+    {
+        $lowercaseHeader = strtolower($key);
+        foreach ($headers as $k => $v) {
+            if (strtolower($k) === $lowercaseHeader) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * Get the boundary that separates the streams.
+     *
+     * @return string
+     */
+    public function getBoundary()
+    {
+        if ($this->boundary === null) {
+            $this->boundary = uniqid('', true);
+        }
+
+        return $this->boundary;
+    }
+
+    /**
+     * @param string $boundary
+     *
+     * @return MultipartStreamBuilder
+     */
+    public function setBoundary($boundary)
+    {
+        $this->boundary = $boundary;
+
+        return $this;
+    }
+
+    /**
+     * @return MimetypeHelper
+     */
+    private function getMimetypeHelper()
+    {
+        if ($this->mimetypeHelper === null) {
+            $this->mimetypeHelper = new ApacheMimetypeHelper();
+        }
+
+        return $this->mimetypeHelper;
+    }
+
+    /**
+     * If you have custom file extension you may overwrite the default MimetypeHelper with your own.
+     *
+     * @param MimetypeHelper $mimetypeHelper
+     *
+     * @return MultipartStreamBuilder
+     */
+    public function setMimetypeHelper(MimetypeHelper $mimetypeHelper)
+    {
+        $this->mimetypeHelper = $mimetypeHelper;
+
+        return $this;
+    }
+
+    /**
+     * Reset and clear all stored data. This allows you to use builder for a subsequent request.
+     *
+     * @return MultipartStreamBuilder
+     */
+    public function reset()
+    {
+        $this->data = [];
+        $this->boundary = null;
+
+        return $this;
+    }
+
+    /**
+     * Gets the filename from a given path.
+     *
+     * PHP's basename() does not properly support streams or filenames beginning with a non-US-ASCII character.
+     *
+     * @author Drupal 8.2
+     *
+     * @param string $path
+     *
+     * @return string
+     */
+    private function basename($path)
+    {
+        $separators = '/';
+        if (DIRECTORY_SEPARATOR != '/') {
+            // For Windows OS add special separator.
+            $separators .= DIRECTORY_SEPARATOR;
+        }
+
+        // Remove right-most slashes when $path points to directory.
+        $path = rtrim($path, $separators);
+
+        // Returns the trailing part of the $path starting after one of the directory separators.
+        $filename = preg_match('@[^'.preg_quote($separators, '@').']+$@', $path, $matches) ? $matches[0] : '';
+
+        return $filename;
+    }
+}