Autodownload nojs code refactor

css/admin.css

@@ -268,3 +268,10 @@
 {
 	display: none;
 }
+
+.wpcf7-pdf-form-shortcode
+{
+	margin-left: 20px;
+	margin-top: 0 !important;
+	padding: 0 !important;
+}

css/frontend.css

@@ -11,3 +11,17 @@
 {
 	font-style: italic;
 }
+
+.wpcf7-pdf-forms-pdf-view
+{
+	height: 650px;
+	width: 100%;
+	margin: 10px 0px;
+}
+
+.wpcf7-pdf-forms-auto-download
+{
+	display: none;
+	width: 0px;
+	height: 0px;
+}

html/add_pdf.html

@@ -25,7 +25,9 @@
 						<div><input data-option="attach_to_mail_1" type="checkbox"/> {attach-to-mail-1}</div>
 						<div><input data-option="attach_to_mail_2" type="checkbox"/> {attach-to-mail-2}</div>
 						<div><input data-option="flatten" type="checkbox"/> {flatten}</div>
-						<div><input data-option="download_link" type="checkbox"/> {download-link}</div>
+						<div><input data-option="download_link" type="checkbox"/> {download-link} <p class="wpcf7-pdf-form-shortcode" > {shortcode-title} </p></div>
+						<div><input data-option="auto_download" type="checkbox"/> {auto-download} <p class="wpcf7-pdf-form-shortcode" > {shortcode-title} </p></div>
+						<div><input data-option="pdf_viewer" type="checkbox"/> {pdf-viewer}</div>
 						<div>{filename}<br/><input data-option="filename" type="text"/>.pdf</div>
 						<div>{save-directory}<br/><input data-option="save_directory" type="text"/></div>
 					</div>
@@ -39,7 +41,6 @@
 	</table>
 
 	<hr/>
-
 	<div class="field-mapping-tool">
 		<div>
 			<span class="dashicons dashicons-randomize"></span>

js/frontend.js

@@ -35,23 +35,48 @@ window.addEventListener('load', function(event)
 			{
 				var downloads = document.createElement('div');
 				downloads.className = 'wpcf7-pdf-forms-response-output';
-
+				var alldownloadlink = false;
+				var allpdfviewer = false;
+
 				for(var i=0; i<data.length; i++)
 				{
+					var autodownload = data[i]['options']['auto_download'];
+					var downloadlink = data[i]['options']['download_link'];
+					var pdfviewer = data[i]['options']['pdf_viewer'];
 					var download = document.createElement('div');
 					download.innerHTML = "<span class='dashicons dashicons-download'></span><a href='' download></a> <span class='file-size'></span>";
-					
+
 					var link = download.querySelector('a');
 					link.href = data[i]['url'];
 					link.innerText = data[i]['filename'];
 					download.querySelector('.file-size').innerText = "(" + data[i]['size'] + ")";
+
+					var pdfview = document.createElement("iframe");
+					pdfview.setAttribute("src", data[i]['url']);
+					pdfview.className = 'wpcf7-pdf-forms-pdf-view';
 
-					downloads.appendChild(download);
+					if( autodownload == true )
+						link.click();
+
+					if( downloadlink == true )
+					{
+						downloads.appendChild(download);
+						alldownloadlink = true;	
+					}
+
+					if( pdfviewer == true )
+					{
+						downloads.appendChild(pdfview);
+						allpdfviewer = true;
+					}
 				}
 
-				var form = formDiv.querySelector('.wpcf7-form');
-				if(form)
+				if( alldownloadlink == true || allpdfviewer == true )
+				{
+					var form = formDiv.querySelector('.wpcf7-form');
+					if(form)
 					form.appendChild(downloads);
+				}
 			}
 		}
 

modules/downloads.php

@@ -5,7 +5,7 @@
 	class WPCF7_Pdf_Forms_Downloads
 	{
 		private static $instance = null;
-		
+
 		private $downloads_path = null;
 		private $downloads_url = null;
 		private $downloads_timeout = 3600;
@@ -60,7 +60,7 @@ private function get_subdir()
 			$random_max = mt_getrandmax();
 			$random_num = zeroise( mt_rand( 0, $random_max ), strlen( $random_max ) );
 			$this->subdir = wp_unique_filename( $this->get_downloads_path(), $random_num );
-
+			 
 			return $this->subdir;
 		}
 
@@ -126,6 +126,15 @@ public function add_file( $srcfile, $filename )
 
 			return $this;
 		}
+
+		/**
+		 * Adds additional options to response
+		 */
+		public function set_options( $id, $options )
+		{
+			$this->files[$id]['options'] = $options;
+			return $this;
+		}
 
 		/**
 		 * Returns added files

pdf-forms-for-contact-form-7.php

@@ -82,6 +82,10 @@ public function plugin_init()
 			add_action( 'wpcf7_after_save', array( $this, 'update_post_attachments' ) );
 
 			add_filter( 'wpcf7_form_response_output', array( $this, 'change_response_nojs' ), 10, 4 );
+			// Auto download when js disabled 
+			add_action( 'parse_request', array( $this, 'autodownload_nojs' ), 80 );
+			// wpcf7_pdf_forms_downloads using shortcode to redirected page
+			add_shortcode( 'wpcf7_pdf_forms_downloads', array( $this, 'shortcode_download_links_response' ) );
 
 			if( defined( 'WPCF7_VERSION' ) && version_compare( WPCF7_VERSION, '5.2' ) >= 0 )
 				// hook wpcf7_feedback_response (works only with CF7 version 5.2+)
@@ -98,7 +102,7 @@ public function plugin_init()
 			// TODO: allow users to run this manually
 			add_action( 'admin_init', array( $this, 'upgrade_data' ) );
 		}
-		
+
 		/*
 		 * Runs after the plugin have been activated/deactivated
 		 */
@@ -559,8 +563,9 @@ public function post_add_pdf( $post_id, $attachment_id, $options )
 			return $attachment_id;
 		}
 
-		private static $pdf_options = array('skip_empty' => false, 'attach_to_mail_1' => true, 'attach_to_mail_2' => false, 'flatten' => false, 'filename' => "", 'save_directory'=>"", 'download_link' => false );
-
+		private static $pdf_options = array('skip_empty' => false, 'attach_to_mail_1' => true, 'attach_to_mail_2' => false, 'flatten' => false, 'filename' => "", 'save_directory'=>"", 'download_link' => false, 'auto_download' => false, 'pdf_viewer' => false );
+		private static $public_pdf_options = array('download_link', 'auto_download', 'pdf_viewer');
+
 		/**
 		 * Updates post attachment options
 		 */
@@ -1077,12 +1082,16 @@ public function fill_pdfs( $contact_form, &$abort, $submission )
 					$attach_to_mail_2 = $attachment['options']['attach_to_mail_2'] || strpos( $mail2["attachments"], "[pdf-form-".$attachment_id."]" ) !== FALSE;
 					$save_directory = strval( $attachment['options']['save_directory'] );
 					$create_download_link = $attachment['options']['download_link'];
+					$create_auto_download = $attachment['options']['auto_download'];
+					$create_pdf_viewer = $attachment['options']['pdf_viewer'];
 
 					// skip file if it is not used anywhere
 					if( !$attach_to_mail_1
 					&& !$attach_to_mail_2
 					&& $save_directory === ""
-					&& !$create_download_link )
+					&& !$create_download_link
+					&& !$create_auto_download
+					&& !$create_pdf_viewer )
 						continue;
 
 					$options = array();
@@ -1171,8 +1180,18 @@ public function fill_pdfs( $contact_form, &$abort, $submission )
 						}
 
 						$create_download_link = $filedata['options']['download_link'];
-						if ( $create_download_link )
-							$this->get_downloads()->add_file( $filedata['file'], $filedata['filename'] );
+						$create_auto_download = $filedata['options']['auto_download'];
+						$create_pdf_viewer = $filedata['options']['pdf_viewer'];
+						$public_options = array_filter( $filedata['options'],
+														function ( $key ) use ( $public_pdf_options )
+														{
+															return in_array( $key, self::$public_pdf_options );
+														}, ARRAY_FILTER_USE_KEY );
+
+						if ( $create_download_link || $create_auto_download || $create_pdf_viewer )
+							$this->get_downloads()
+							->add_file( $filedata['file'], $filedata['filename'] )
+							->set_options( $id, $public_options );
 					}
 				}
 			}
@@ -1933,6 +1952,9 @@ public function render_tag_generator( $contact_form, $args = '' )
 					'filename' => esc_html__( 'Filename (mail-tags can be used)', 'pdf-forms-for-contact-form-7' ),
 					'save-directory'=> esc_html__( 'Save PDF file on the server at the given path relative to wp-content/uploads (mail-tags can be used; if empty, PDF file is not saved on disk)', 'pdf-forms-for-contact-form-7' ),
 					'download-link' => esc_html__( 'Add filled PDF download link to form submission response', 'pdf-forms-for-contact-form-7' ),
+					'shortcode-title' => esc_html__( 'If your form redirects, use [wpcf7_pdf_forms_downloads] shortcode to display download links on the redirect page.', 'pdf-forms-for-contact-form-7' ),
+					'auto-download' => esc_html__( 'Automatically download filled PDF after form submission', 'pdf-forms-for-contact-form-7' ),
+					'pdf-viewer' => esc_html__( 'PDF viewer', 'pdf-forms-for-contact-form-7' ),
 					'field-mapping' => esc_html__( 'Field Mapper Tool', 'pdf-forms-for-contact-form-7' ),
 					'field-mapping-help' => esc_html__( 'This tool can be used to link form fields and mail-tags with fields in the attached PDF files. Form tags can also be generated. When your users submit the form, input from form fields and other mail-tags will be inserted into the correspoinding fields in the PDF file.', 'pdf-forms-for-contact-form-7' ),
 					'pdf-field' => esc_html__( 'PDF field', 'pdf-forms-for-contact-form-7' ),
@@ -2014,11 +2036,15 @@ public function change_response_js( $response, $result )
 						array(
 							'filename' => $file['filename'],
 							'url' => $file['url'],
-							'size' => size_format( filesize( $file['filepath'] ) )
+							'size' => size_format( filesize( $file['filepath'] ) ),
+							'options' => $file['options']
 						);
 
 				// make sure to enable cron if it is down so that old download files get cleaned up
 				$this->enable_cron();
+
+				// keeping files in cookie to be accessed on the redirect page.
+				setcookie('wpcf7_pdf_forms_files', json_encode( $this->downloads->get_files() ), time() + 3600, "/");
 			}
 
 			return $response;
@@ -2038,6 +2064,70 @@ public function change_response_nojs( $output, $class, $content, $contact_form )
 				{
 					$downloads = '';
 					foreach( $this->downloads->get_files() as $file )
+					{
+						if( $file['options']['download_link'] == true )
+							$downloads .= "<div>" .
+								self::replace_tags(
+									esc_html__( "{icon} {a-href-url}{filename}{/a} {i}({size}){/i}", 'pdf-forms-for-contact-form-7' ),
+									array(
+										'icon' => '<span class="dashicons dashicons-download"></span>',
+										'a-href-url' => '<a href="' . esc_html( $file['url'] ) . '" download>',
+										'filename' => esc_html( $file['filename'] ),
+										'/a' => '</a>',
+										'i' => '<span class="file-size">',
+										'size' => esc_html( size_format( filesize( $file['filepath'] ) ) ),
+										'/i' => '</span>',
+									)
+								)
+							. "</div>";
+
+						if( $file['options']['pdf_viewer'] == true )
+							$downloads .= "<iframe src='".esc_html( $file['url'] )."' class='wpcf7-pdf-forms-pdf-view' ></iframe>";
+
+						if( $file['options']['auto_download'] == true )
+							$downloads .= "<iframe src='".esc_html( $_SERVER['REQUEST_URI'] )."?pdf_url=".esc_html( base64_encode( $file['url'] ) )."&pdf_name=".esc_html( base64_encode( $file['filename'] ) )."' class='wpcf7-pdf-forms-auto-download' ></iframe>";
+					}
+					$output .= "<div class='wpcf7-pdf-forms-response-output'>$downloads</div>";
+
+					// make sure to enable cron if it is down so that old download files get cleaned up
+					$this->enable_cron();
+				}
+			}
+
+			return $output;
+		}
+
+		/*
+		 * Auto download filled pdf file when js is disabled and handles url request made by iframe.
+		 */
+		public function autodownload_nojs()
+		{
+			$url = base64_decode( $_REQUEST['pdf_url'] );
+			$filename = base64_decode( $_REQUEST['pdf_name'] );
+			$url_extension = pathinfo( $url, PATHINFO_EXTENSION );
+			$file_extension = pathinfo( $filename, PATHINFO_EXTENSION );
+
+			if( isset( $url ) && isset( $filename )  && $url_extension == 'pdf' && $file_extension == 'pdf' )
+			{
+				header( 'Content-Disposition: attachment; filename=' . $filename );
+				readfile( $url );
+			}
+		}
+
+		/*
+	   	 * function that runs when the shortcode is called
+		 */
+		public function shortcode_download_links_response() 
+		{
+			$output = '';
+			if( isset( $_COOKIE['wpcf7_pdf_forms_files'] ) )
+			{
+				$get_files = stripslashes( $_COOKIE['wpcf7_pdf_forms_files'] );
+				$get_files = json_decode( $get_files, true );
+				$downloads = '';
+				foreach( $get_files as $file )
+				{
+					if( $file['options']['download_link'] == true || $file['options']['auto_download'] == true )
 						$downloads .= "<div>" .
 							self::replace_tags(
 								esc_html__( "{icon} {a-href-url}{filename}{/a} {i}({size}){/i}", 'pdf-forms-for-contact-form-7' ),
@@ -2052,15 +2142,13 @@ public function change_response_nojs( $output, $class, $content, $contact_form )
 								)
 							)
 						. "</div>";
-					$output .= "<div class='wpcf7-pdf-forms-response-output'>$downloads</div>";
-
-					// make sure to enable cron if it is down so that old download files get cleaned up
-					$this->enable_cron();
 				}
+				$output .= "<div class='wpcf7-pdf-forms-response-output'>$downloads</div>";
 			}
-			
+
 			return $output;
 		}
+
 	}
 
 	WPCF7_Pdf_Forms::get_instance();