testing

PhabricatorCSVExportFormat.php
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			<?php

			final class PhabricatorCSVExportFormat
			extends PhabricatorExportFormat {

			const EXPORTKEY = 'csv';

			private $rows = array();

			public function getExportFormatName() {
			return pht('Comma-Separated Values (.csv)');
			}

			public function isExportFormatEnabled() {
			return true;
			}

			public function getFileExtension() {
			return 'csv';
			}

			public function getMIMEContentType() {
			return 'text/csv';
			}

			public function addHeaders(array $fields) {
			$headers = mpull($fields, 'getLabel');
			$this->addRow($headers);
			}

			public function addObject($object, array $fields, array $map) {
			$values = array();
			foreach ($fields as $key => $field) {
			$value = $map[$key];
			$value = $field->getTextValue($value);
			$values[] = $value;
			}

			$this->addRow($values);
			}

			private function addRow(array $values) {
			$row = array();
			foreach ($values as $value) {

			// Excel is extremely interested in executing arbitrary code it finds in
			// untrusted CSV files downloaded from the internet. When a cell looks
			// like it might be too tempting for Excel to ignore, mangle the value
			// to dissuade remote code execution. See T12800.

			if (preg_match('/^\s*[+=@-]/', $value)) {
			$value = '(!) '.$value;
			}

			if (preg_match('/\s\|,\|\"/', $value)) {
			$value = str_replace('"', '""', $value);
			$value = '"'.$value.'"';
			}

			$row[] = $value;
			}

			$this->rows[] = implode(',', $row);
			}

			public function newFileData() {
			return implode("\n", $this->rows);
			}

			}