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-rw-r--r--engine/classes/ElggFile.php41
1 files changed, 41 insertions, 0 deletions
diff --git a/engine/classes/ElggFile.php b/engine/classes/ElggFile.php
index fe25491a8..f21621ffd 100644
--- a/engine/classes/ElggFile.php
+++ b/engine/classes/ElggFile.php
@@ -121,6 +121,47 @@ class ElggFile extends ElggObject {
}
/**
+ * Detects mime types based on filename or actual file.
+ *
+ * @param mixed $file The full path of the file to check. For uploaded files, use tmp_name.
+ * @param mixed $default A default. Useful to pass what the browser thinks it is.
+ * @since 1.7.12
+ *
+ * @return mixed Detected type on success, false on failure.
+ */
+ static function detectMimeType($file = null, $default = null) {
+ if (!$file) {
+ if (isset($this) && $this->filename) {
+ $file = $this->filename;
+ } else {
+ return false;
+ }
+ }
+
+ $mime = false;
+
+ // for PHP5 folks.
+ if (function_exists('finfo_file') && defined('FILEINFO_MIME_TYPE')) {
+ $resource = finfo_open(FILEINFO_MIME_TYPE);
+ if ($resource) {
+ $mime = finfo_file($resource, $file);
+ }
+ }
+
+ // for everyone else.
+ if (!$mime && function_exists('mime_content_type')) {
+ $mime = mime_content_type($file);
+ }
+
+ // default
+ if (!$mime) {
+ return $default;
+ }
+
+ return $mime;
+ }
+
+ /**
* Set the optional file description.
*
* @param string $description The description.