From dae8a7e610abb3069c39b0fd6063d6c769e19d51 Mon Sep 17 00:00:00 2001
From: Christoph Haas <christoph.h@sprinternet.at>
Date: Mon, 13 Jun 2016 15:51:19 +0200
Subject: [PATCH] starting on export feature

---
 js/data/ResponseHandler.js     |  8 +++++
 js/plugin.contactimporter.js   | 63 ++++++++++++++++++++++++++++++++++
 php/download.php               | 47 +++++++++++++++++++++++++
 php/module.contact.php         | 52 +++++++++++++++++++++++++++-
 php/plugin.contactimporter.php |  9 ++++-
 5 files changed, 177 insertions(+), 2 deletions(-)
 create mode 100644 php/download.php

diff --git a/js/data/ResponseHandler.js b/js/data/ResponseHandler.js
index 6b38745..dea5600 100644
--- a/js/data/ResponseHandler.js
+++ b/js/data/ResponseHandler.js
@@ -55,6 +55,14 @@ Zarafa.plugins.contactimporter.data.ResponseHandler = Ext.extend(Zarafa.core.dat
 	doImport : function(response) {
 		this.successCallback(response);
 	},
+
+	/**
+	 * Call the successCallback callback function.
+	 * @param {Object} response Object contained the response data.
+	 */
+	doExport : function(response) {
+		this.successCallback(response);
+	},
 	
 	/**
 	 * Call the successCallback callback function.
diff --git a/js/plugin.contactimporter.js b/js/plugin.contactimporter.js
index f4588d5..35cc34a 100644
--- a/js/plugin.contactimporter.js
+++ b/js/plugin.contactimporter.js
@@ -50,6 +50,9 @@ Zarafa.plugins.contactimporter.ImportPlugin = Ext.extend(Zarafa.core.Plugin, {
 
 		/* add import button to south navigation */
 		this.registerInsertionPoint("navigation.south", this.createImportButton, this);
+
+		/* export a contact via rightclick */
+		this.registerInsertionPoint('context.contact.contextmenu.actions', this.createItemExportInsertionPoint, this);
 	},
 	
     /**
@@ -74,6 +77,66 @@ Zarafa.plugins.contactimporter.ImportPlugin = Ext.extend(Zarafa.core.Plugin, {
 		
 		return  button;
 	},
+
+	/**
+	 * This method hooks to the contact context menu and allows users to export users to vcf.
+	 *
+	 * @param include
+	 * @param btn
+	 * @returns {Object}
+	 */
+	createItemExportInsertionPoint: function (include, btn) {
+		return {
+			text   : dgettext('plugin_files', 'Export VCF'),
+			handler: this.exportToVCF.createDelegate(this, [btn]),
+			scope  : this,
+			iconCls: 'icon_contactimporter_export'
+		};
+	},
+
+	exportToVCF: function(btn) {
+		if(btn.records.length == 0) {
+			return; // skip if no records where given!
+		}
+
+		var recordIds = [];
+
+		for(var i=0;i<btn.records.length;i++) {
+			recordIds.push(btn.records[i].get("entryid"));
+		}
+
+		var responseHandler = new Zarafa.plugins.contactimporter.data.ResponseHandler({
+			successCallback: this.downloadVCF,
+			scope: this
+		});
+
+		// request attachment preperation
+		container.getRequest().singleRequest(
+			'contactmodule',
+			'export',
+			{
+				storeid : btn.records[0].get("store_entryid"),
+				records: recordIds
+			},
+			responseHandler
+		);
+	},
+
+	downloadVCF: function(response) {
+		var downloadFrame = Ext.getBody().createChild({
+			tag: 'iframe',
+			cls: 'x-hidden'
+		});
+
+		var url = document.URL;
+		var link = url.substring(0, url.lastIndexOf('/') + 1);
+
+		link += "index.php?sessionid=" + container.getUser().getSessionId() + "&load=custom&name=download_vcf";
+		link = Ext.urlAppend(link, "token=" + encodeURIComponent(response.download_token));
+		link = Ext.urlAppend(link, "filename=" + encodeURIComponent(response.filename));
+
+		downloadFrame.dom.contentWindow.location = link;
+	},
 	
 	/**
 	 * Insert import button in all attachment suggestions
diff --git a/php/download.php b/php/download.php
new file mode 100644
index 0000000..a415291
--- /dev/null
+++ b/php/download.php
@@ -0,0 +1,47 @@
+<?php
+
+class DownloadHandler
+{
+
+	public static function doDownload() {
+		if (isset($_GET["token"])) {
+			$token = $_GET["token"];
+		} else {
+			return false;
+		}
+
+		if (isset($_GET["filename"])) {
+			$filename = $_GET["filename"];
+		} else {
+			return false;
+		}
+
+		// validate token
+		if (!ctype_alnum($token)) { // token is a md5 hash
+			return false;
+		}
+
+		$file = PLUGIN_CONTACTIMPORTER_TMP_UPLOAD . "vcf_" . $token . ".vcf";
+
+		if(!file_exists($file)) { // invalid token
+			return false;
+		}
+
+		// set headers here
+		header('Content-Disposition: attachment; filename="' . $filename . '"');
+
+		// no caching
+		header('Expires: 0'); // set expiration time
+		header('Content-Description: File Transfer');
+		header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+		header('Content-Length: ' . filesize($file));
+		header('Content-Type: application/octet-stream');
+		header('Pragma: public');
+		flush();
+
+		// print the downloaded file
+		readfile($file);
+		ignore_user_abort(true);
+		unlink($file);
+	}
+}
\ No newline at end of file
diff --git a/php/module.contact.php b/php/module.contact.php
index 0948fd2..132c72b 100644
--- a/php/module.contact.php
+++ b/php/module.contact.php
@@ -65,6 +65,9 @@ class ContactModule extends Module {
 						case "import":
 							$result = $this->importContacts($actionType, $actionData);
 							break;
+						case "export":
+							$result = $this->exportContacts($actionType, $actionData);
+							break;
 						case "importattachment":
 							$result = $this->getAttachmentPath($actionType, $actionData);
 							break;
@@ -240,7 +243,54 @@ class ContactModule extends Module {
 		$this->addActionData($actionType, $response);
 		$GLOBALS["bus"]->addData($this->getResponseData());
 	}
-	
+
+	private function exportContacts($actionType, $actionData)
+	{
+		// Get store id
+		$storeid = false;
+		if (isset($actionData["storeid"])) {
+			$storeid = $actionData["storeid"];
+		}
+
+		// Get records
+		$records = array();
+		if (isset($actionData["records"])) {
+			$records = $actionData["records"];
+		}
+
+		$response = array();
+		$error = false;
+		$error_msg = "";
+
+		// write csv
+		$token = $this->randomstring(16);
+		$file = PLUGIN_CONTACTIMPORTER_TMP_UPLOAD . "vcf_" . $token . ".vcf";
+		file_put_contents($file, "");
+
+		$store = $GLOBALS["mapisession"]->openMessageStore(hex2bin($storeid));
+		if ($store) {
+			for ($index = 0, $count = count($records); $index < $count; $index++) {
+				$message = mapi_msgstore_openentry($store, hex2bin($records[$index]));
+
+				// get message properties.
+				$messageProps = mapi_getprops($message, array(PR_DISPLAY_NAME));
+				file_put_contents($file, file_get_contents($file) . $messageProps[PR_DISPLAY_NAME]);
+
+				// TODO: implement vcf
+			}
+		} else {
+			return false;
+		}
+
+		$response['status'] = true;
+		$response['download_token'] = $token;
+		$response['filename'] = "test.csv";
+
+		$this->addActionData($actionType, $response);
+		$GLOBALS["bus"]->addData($this->getResponseData());
+	}
+
+
 	private function replaceStringPropertyTags($store, $properties) {
 		$newProperties = array();
 
diff --git a/php/plugin.contactimporter.php b/php/plugin.contactimporter.php
index 623a0cc..031e0fc 100644
--- a/php/plugin.contactimporter.php
+++ b/php/plugin.contactimporter.php
@@ -20,7 +20,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  */
- 
+require_once __DIR__ . "/download.php";
+
 /**
  * contactimporter Plugin
  *
@@ -40,6 +41,7 @@ class Plugincontactimporter extends Plugin {
 	 */
 	function init() {
 		$this->registerHook('server.core.settings.init.before');
+		$this->registerHook('server.index.load.custom');
 	}
 
 	/**
@@ -54,6 +56,11 @@ class Plugincontactimporter extends Plugin {
 			case 'server.core.settings.init.before' :
 				$this->injectPluginSettings($data);
 				break;
+			case 'server.index.load.custom':
+				if ($data['name'] == 'download_vcf') {
+					DownloadHandler::doDownload();
+				}
+				break;
 		}
 	}