function check_path_permissions()
{
$paths = array();
$rel = '..';
$publishRoot = chart_publish_directory();
$paths[] = $publishRoot . 'static';
$paths[] = $publishRoot . 'data';
$paths[] = $publishRoot . 'images';
$paths[] = $publishRoot . 'data/tmp';
$paths[] = ROOT_PATH . 'tmp';
$err = array();
foreach ($paths as $path) {
if (!is_writable($path)) {
$err[] = $path;
}
}
if (count($err) > 0) {
$msg = '<h2>The following folders on your server need to be writable:</h2><ul>';
foreach ($paths as $path) {
$msg .= '<li><code>' . htmlspecialchars($path, ENT_QUOTES, 'UTF-8') . '</code></li>';
}
$msg .= '</ul>';
$msg .= 'Read more about <a href="http://codex.wordpress.org/Changing_File_Permissions#Using_an_FTP_Client">how to change file permissions</a>';
return $msg;
}
return '';
}
function publish_js($user, $chart)
{
$cdn_files = array();
$static_path = chart_publish_directory() . 'static/lib/';
$data = get_chart_content($chart, $user, false, '../');
// generate visualization script
$vis = $data['visualization'];
$vis_js = $data['vis_js'];
// add comment
$vis_js[1] = "/*\n * datawrapper / vis / {$vis['id']} v{$vis['version']}\n" . " * generated on " . date('c') . "\n */\n" . $vis_js[1];
file_put_contents($static_path . $vis_js[0], $vis_js[1]);
$cdn_files[] = array($static_path . $vis_js[0], 'lib/' . $vis_js[0], 'application/javascript');
// generate theme script
$theme = $data['theme'];
$theme_js = $data['theme_js'];
$theme_js[1] = "/*\n * datawrapper / theme / {$theme['id']} v{$theme['version']}\n" . " * generated on " . date('c') . "\n */\n" . $theme_js[1];
file_put_contents($static_path . $theme_js[0], $theme_js[1]);
$cdn_files[] = array($static_path . $theme_js[0], 'lib/' . $theme_js[0], 'application/javascript');
// generate chart script
$chart_js = $data['chart_js'];
$chart_js[1] = "/*\n * datawrapper / chart \n" . " * generated on " . date('c') . "\n */\n" . $chart_js[1];
file_put_contents($static_path . $chart_js[0], $chart_js[1]);
$cdn_files[] = array($static_path . $chart_js[0], 'lib/' . $chart_js[0], 'application/javascript');
return $cdn_files;
}
}
});
});
/**
* API: upload csv file to a chart
*
* @param chart_id chart id
*/
$app->post('/charts/:id/data', function ($chart_id) use($app) {
disable_cache($app);
if_chart_is_writable($chart_id, function ($user, $chart) use($app) {
$allowedExtensions = array('txt', 'csv', 'tsv');
$sizeLimit = 2 * 1024 * 1024;
// byte
$uploader = new qqFileUploader($allowedExtensions, $sizeLimit);
$result = $uploader->handleUpload(chart_publish_directory() . 'data/tmp/');
// check and correct file encoding
$detect_encoding = function ($string) {
$charsets = array('utf-8', 'iso-8859-15', 'iso-8859-1', 'iso-8859-3', 'windows-1251');
foreach ($charsets as $charset) {
$sample = @iconv($charset, $charset, $string);
if (md5($sample) == md5($string)) {
return $charset;
}
}
return null;
};
try {
if (isset($result['success'])) {
$data = file_get_contents($uploader->filename);
$enc = $detect_encoding($data);
public function redirectPreviousVersions()
{
$current_target = $this->getCDNPath();
$redirect_html = '<html><head><meta http-equiv="REFRESH" content="0; url=/' . $current_target . '"></head></html>';
$redirect_file = chart_publish_directory() . 'static/' . $this->getID() . '/redirect.html';
file_put_contents($redirect_file, $redirect_html);
$files = array();
for ($v = 0; $v < $this->getPublicVersion(); $v++) {
$files[] = array($redirect_file, $this->getCDNPath($v) . 'index.html', 'text/html');
}
DatawrapperHooks::execute(DatawrapperHooks::PUBLISH_FILES, $files);
}
