/**
* Checks encoding, normalizes whitespace/punctuation, and sets the name string.
*
* @param String $str a utf8-encoding string.
* @return Bool True on success
*/
public function setStr($str)
{
if (!drupal_validate_utf8($str)) {
throw new Exception("Name is not encoded in UTF-8");
}
$this->str = $str;
$this->norm();
return true;
}
/**
* Make sure our query matches the pattern name:value or name:"value"
* Make sure that if we are ranges we use name:[ AND ]
* allowed inputs :
* a. bundle:article
* b. date:[1970-12-31T23:59:59Z TO NOW]
* Split the text in 4 different parts
* 1. name, eg.: bundle or date
* 2. The first opening bracket (or nothing), eg.: [
* 3. The value of the field, eg. article or 1970-12-31T23:59:59Z TO NOW
* 4. The last closing bracket, eg.: ]
* @param string $filter
* The filter to validate
* @return boolean
*/
public static function validFilterValue($filter)
{
$name = NULL;
$value = NULL;
$matches = array();
$datefields = array();
$datefield_match = array();
if (preg_match('/(?P<name>[^:]+):(?P<value>.+)?$/', $filter, $matches)) {
foreach ($matches as $match_id => $match) {
switch ($match_id) {
case 'name':
$name = $match;
break;
case 'value':
$value = $match;
break;
}
}
// For the name we allow any character that fits between the A-Z0-9 range and
// any alternative for this in other languages. No special characters allowed.
// Negative filters may have a leading "-".
if (!preg_match('/^-?[a-zA-Z0-9_\\x7f-\\xff]+$/', $name)) {
return FALSE;
}
// For the value we allow anything that is UTF8
if (!drupal_validate_utf8($value)) {
return FALSE;
}
// Check our bracket count. If it does not match it is also not valid
$valid_brackets = TRUE;
$brackets['opening']['{'] = substr_count($value, '{');
$brackets['closing']['}'] = substr_count($value, '}');
$valid_brackets = $valid_brackets && $brackets['opening']['{'] == $brackets['closing']['}'];
$brackets['opening']['['] = substr_count($value, '[');
$brackets['closing'][']'] = substr_count($value, ']');
$valid_brackets = $valid_brackets && $brackets['opening']['['] == $brackets['closing'][']'];
$brackets['opening']['('] = substr_count($value, '(');
$brackets['closing'][')'] = substr_count($value, ')');
$valid_brackets = $valid_brackets && $brackets['opening']['('] == $brackets['closing'][')'];
if (!$valid_brackets) {
return FALSE;
}
// Check the date field inputs
if (preg_match('/\\[(.+) TO (.+)\\]$/', $value, $datefields)) {
// Only Allow a value in the form of
// http://lucene.apache.org/solr/api/org/apache/solr/schema/DateField.html
// http://lucene.apache.org/solr/api/org/apache/solr/util/DateMathParser.html
// http://wiki.apache.org/solr/SolrQuerySyntax
// 1976-03-06T23:59:59.999Z (valid)
// * (valid)
// 1995-12-31T23:59:59.999Z (valid)
// 2007-03-06T00:00:00Z (valid)
// NOW-1YEAR/DAY (valid)
// NOW/DAY+1DAY (valid)
// 1976-03-06T23:59:59.999Z (valid)
// 1976-03-06T23:59:59.999Z+1YEAR (valid)
// 1976-03-06T23:59:59.999Z/YEAR (valid)
// 1976-03-06T23:59:59.999Z (valid)
// 1976-03-06T23::59::59.999Z (invalid)
if (!empty($datefields[1]) && !empty($datefields[2])) {
// Do not check to full value, only the splitted ones
unset($datefields[0]);
// Check if both matches are valid datefields
foreach ($datefields as $datefield) {
if (!preg_match('/(\\d{4}-\\d{2}-\\d{2}T\\d{2}:\\d{2}:[\\d\\.]{2,6}Z(\\S)*)|(^([A-Z\\*]+)(\\A-Z0-9\\+\\-\\/)*)/', $datefield, $datefield_match)) {
return FALSE;
}
}
}
}
}
return TRUE;
}
/**
* Helper function to reformat fields where required.
*
* Some values (lat/lon) break down into structures, not strings.
* Dates should be parsed nicely.
*/
function _reformat($data)
{
// Make the key lowercase as field names must be.
$data = array_change_key_case($data, CASE_LOWER);
foreach ($data as $key => &$value) {
if (is_array($value)) {
$value = array_change_key_case($value, CASE_LOWER);
switch ($key) {
// GPS values
case 'gps_latitude':
case 'gps_longitude':
case 'gpslatitude':
case 'gpslongitude':
$value = $this->_exif_reformat_DMS2D($value, $data[$key . 'ref']);
break;
}
} else {
if (!drupal_validate_utf8($value)) {
$value = utf8_encode($value);
}
switch ($key) {
// String values.
case 'usercomment':
if ($this->startswith($value, 'UNICODE')) {
$value = substr($value, 8);
}
break;
// Date values.
// Date values.
case 'filedatetime':
$value = date('c', $value);
break;
case 'datetimeoriginal':
case 'datetime':
case 'datetimedigitized':
// In case we get a datefield, we need to reformat it to the ISO 8601 standard:
// which will look something like 2004-02-12T15:19:21
$date_time = explode(" ", $value);
$date_time[0] = str_replace(":", "-", $date_time[0]);
if (variable_get('exif_granularity', 0) == 1) {
$date_time[1] = "00:00:00";
}
$value = implode("T", $date_time);
break;
// GPS values.
// GPS values.
case 'gpsaltitude':
case 'gpsimgdirection':
$value = $this->_exif_reformat_DMS2D($value, $data[$key . 'ref']);
break;
// Flash values.
// Flash values.
case 'flash':
$flash_descriptions = $this->getFlashDescriptions();
if (isset($flash_descriptions[$value])) {
$value = $flash_descriptions[$value];
}
break;
// Exposure values.
// Exposure values.
case 'exposuretime':
if (strpos($value, '/') !== FALSE) {
$value = $this->_normalise_fraction($value) . 's';
}
break;
// Focal Length values.
// Focal Length values.
case 'focallength':
if (strpos($value, '/') !== FALSE) {
$value = $this->_normalise_fraction($value) . 'mm';
}
break;
}
}
}
return $data;
}
/**
* {@inheritdoc}
*/
public function set($cid, $data, $expire = CACHE_PERMANENT)
{
$scalar = is_scalar($data);
$entry = array('_id' => (string) $cid, 'cid' => (string) $cid, 'created' => REQUEST_TIME, 'expire' => $expire, 'serialized' => !$scalar, 'data' => $scalar ? $data : serialize($data));
// Use MongoBinData for non-UTF8 strings.
if (is_string($entry['data']) && !drupal_validate_utf8($entry['data'])) {
$entry['data'] = $this->createBinData($entry['data']);
}
try {
$this->collection->save($entry, $this->unsafe);
} catch (\Exception $e) {
// The database may not be available, so we'll ignore cache_set requests.
}
}
