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ExportToCsvUtf8.php
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ExportToCsvUtf8.php
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<?php
/*
"Contact Form to Database" Copyright (C) 2011-2013 Michael Simpson (email : michael.d.simpson@gmail.com)
This file is part of Contact Form to Database.
Contact Form to Database is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Contact Form to Database is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Contact Form to Database.
If not, see <http://www.gnu.org/licenses/>.
*/
require_once('ExportBase.php');
require_once('CFDBExport.php');
require_once('ShiftJisConverter.php');
class ExportToCsvUtf8 extends ExportBase implements CFDBExport {
var $useBom = false;
var $bak = false;
/**
* boolean For Japanese
*/
var $useShiftJIS = false;
var $shiftJis;
/**
* ExportToCsvUtf8 constructor.
*/
public function __construct() {
parent::__construct();
$this->shiftJis = new ShiftJisConverter();
}
public function setUseBom($use) {
$this->useBom = $use;
}
public function setUseShiftJIS($use) {
if (!$this->shiftJis->canConvert()) {
$this->useShiftJIS = false;
}
else {
$this->useShiftJIS = $use;
}
}
public function export($formName, $options = null) {
if (isset($options['bak']) && $options['bak'] == 'true') {
$this->bak = true;
$options['hide'] = 'Submitted';
$options['show'] = 'submit_time,/.*/';
$options['unbuffered'] = 'true';
}
$this->setOptions($options);
$this->setCommonOptions();
// Security Check
if (!$this->isAuthorized()) {
$this->assertSecurityErrorMessage();
return;
}
if ($this->options && !$this->bak && is_array($this->options)) {
if (isset($this->options['bom'])) {
$this->useBom = $this->options['bom'] == 'true';
}
}
$this->echoCsv($formName, $options);
}
public function echoCsv($formName, $options = null) {
$eol = "\n";
$delimiter = ',';
if (isset($this->options['delimiter'])) {
$delimiter = $this->options['delimiter'];
} else if ($this->hasGoogleSpreadsheetHeader()) {
// Google Spreadsheet uses comma as a delimiter
$delimiter = ',';
} else {
if (isset($options['regionaldelimiter']) && $options['regionaldelimiter'] == 'true') {
// Pick a delimiter based on regional settings
$delimiter = $this->get_csv_delimiter(get_locale());
}
}
// Query DB for the data for that form
$submitTimeKeyName = 'Submit_Time_Key';
$this->setDataIterator($formName, $submitTimeKeyName);
$this->clearAllOutputBuffers();
// Headers
$charSet = 'UTF-8';
if ($this->useShiftJIS) {
$charSet = $this->shiftJis->getContentTypeCharSet();
}
$this->echoHeaders(
array("Content-Type: text/csv; charset=$charSet",
"Content-Disposition: attachment; filename=\"$formName.csv\""));
if ($this->useBom) {
// File encoding UTF-8 Byte Order Mark (BOM) http://wiki.sdn.sap.com/wiki/display/ABAP/Excel+files+-+CSV+format
echo chr(239) . chr(187) . chr(191);
}
// Column Headers
if (isset($this->options['header']) && $this->options['header'] != 'true') {
// do not output column headers
}
else {
foreach ($this->dataIterator->getDisplayColumns() as $aCol) {
$colDisplayValue = $aCol;
if ($this->headers && isset($this->headers[$aCol])) {
$colDisplayValue = $this->headers[$aCol];
}
if ($this->useShiftJIS) {
$colDisplayValue = $this->shiftJis->convertUtf8ToSjis($colDisplayValue);
}
$colDisplayValue = $this->escapeFunctionCall($colDisplayValue);
printf('"%s"', str_replace('"', '""', $colDisplayValue));
echo $delimiter;
}
echo $eol;
}
// Rows
$showFileUrlsInExport = $this->plugin->getOption('ShowFileUrlsInExport') == 'true';
while ($this->dataIterator->nextRow()) {
$fields_with_file = null;
if ($showFileUrlsInExport &&
isset($this->dataIterator->row['fields_with_file']) &&
$this->dataIterator->row['fields_with_file'] != null) {
$fields_with_file = explode(',', $this->dataIterator->row['fields_with_file']);
}
foreach ($this->dataIterator->getDisplayColumns() as $aCol) {
$cell = isset($this->dataIterator->row[$aCol]) ? $this->dataIterator->row[$aCol] : '';
if ($showFileUrlsInExport &&
$fields_with_file &&
$cell &&
in_array($aCol, $fields_with_file)) {
$cell = $this->plugin->getFileUrl($this->dataIterator->row[$submitTimeKeyName], $formName, $aCol);
}
$cell = $this->escapeFunctionCall($cell);
if ($this->useShiftJIS) {
$cell = $this->shiftJis->convertUtf8ToSjis($cell);
}
printf('"%s"', str_replace('"', '""', $cell));
echo $delimiter;
}
echo $eol;
}
}
/**
* To avoid CSV injection of functions, add a single quote at the beginning
* of any value that begins with an = per Excel convention
* @param $value
* @return string
*/
public function escapeFunctionCall($value) {
if (strpos($value, '=') === 0) {
$value = "'" . $value;
}
return $value;
}
public function hasGoogleSpreadsheetHeader() {
if (function_exists('getallheaders')) {
$clientHeaders = getallheaders();
if (!empty($clientHeaders) && isset($clientHeaders['User-Agent'])) {
if (strpos($clientHeaders['User-Agent'], 'GoogleDocs') !== false) {
return true;
}
if (strpos($clientHeaders['User-Agent'], 'docs.google.com') !== false) {
return true;
}
}
}
return false;
}
}