adds common and http protocol functionalities

1 files changed, 47 insertions, 1 deletions

diff --git a/storage-backend/lib/functions.common.inc.php b/storage-backend/lib/functions.common.inc.php
index b47268e..d00b555 100644
--- a/storage-backend/lib/functions.common.inc.php
+++ b/storage-backend/lib/functions.common.inc.php
@@ -15,4 +15,50 @@ function generate_uuid() {
     mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff ), mt_rand( 0, 0xffff )
   );
 }
-?>
\ No newline at end of file
+
+function getFromArray($key, $array) {
+  if (array_key_exists($key, $array)
+        && isset($array[$key])
+        && !empty($array[$key])) {
+        return $array[$key];
+    } else {
+        return NULL;
+    }
+}
+
+function format_size($size, $precision = 2) {
+  $sizes = ['bytes', 'Kb', 'Mb', 'Gb', 'Tb'];
+  $i = 0;
+  while (1023 < $size && $i < count($sizes) - 1) {
+    $size /= 1023;
+    ++$i;
+  }
+
+  return number_format($size, $precision).' '.$sizes[$i];
+}
+
+function startsWith($haystack, $needle) {
+     $length = strlen($needle);
+     return (substr($haystack, 0, $length) === $needle);
+}
+
+function endsWith($haystack, $needle) {
+    $length = strlen($needle);
+
+    return $length === 0 || (substr($haystack, -$length) === $needle);
+}
+
+function generatePath($parts, $basePath = __DIR__) {
+    $path = $basePath;
+    if (!is_array($parts)) {
+        $parts = [$parts];
+    }
+    foreach ($parts as $part) {
+        $path .= DIRECTORY_SEPARATOR.generatePathName($part);
+    }
+    return $path;
+}
+
+function generatePathName($name) {
+    return urlencode($name);
+}
\ No newline at end of file