Added get_dir_file_info(), get_file_info(), and get_mime_by_extension() to the File Helper.

Changed ( ! condition) into (! condition) within the code

1 files changed, 174 insertions, 7 deletions

diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php
index 04c5747bf..1eb8348e9 100644
--- a/system/helpers/file_helper.php
+++ b/system/helpers/file_helper.php
@@ -40,7 +40,7 @@ if (! function_exists('read_file'))
 {

 	function read_file($file)

 	{

-		if ( ! file_exists($file))

+		if (! file_exists($file))

 		{

 			return FALSE;

 		}

@@ -50,7 +50,7 @@ if (! function_exists('read_file'))
 			return file_get_contents($file);		

 		}

 

-		if ( ! $fp = @fopen($file, 'rb'))

+		if (! $fp = @fopen($file, 'rb'))

 		{

 			return FALSE;

 		}

@@ -87,7 +87,7 @@ if (! function_exists('write_file'))
 {

 	function write_file($path, $data, $mode = 'wb')

 	{

-		if ( ! $fp = @fopen($path, $mode))

+		if (! $fp = @fopen($path, $mode))

 		{

 			return FALSE;

 		}

@@ -123,7 +123,7 @@ if (! function_exists('delete_files'))
 		// Trim the trailing slash

 		$path = preg_replace("|^(.+?)/*$|", "\\1", $path);

 		

-		if ( ! $current_dir = @opendir($path))

+		if (! $current_dir = @opendir($path))

 			return;

 	

 		while(FALSE !== ($filename = @readdir($current_dir)))

@@ -167,7 +167,7 @@ if (! function_exists('get_filenames'))
 {

 	function get_filenames($source_dir, $include_path = FALSE, $_recursion = FALSE)

 	{

-		static $_filedata = array();

+		$_filedata = array();

 				

 		if ($fp = @opendir($source_dir))

 		{

@@ -180,11 +180,11 @@ if (! function_exists('get_filenames'))
 			

 			while (FALSE !== ($file = readdir($fp)))

 			{

-				if (@is_dir($source_dir.$file) && substr($file, 0, 1) != '.')

+				if (@is_dir($source_dir.$file) && strncmp($file, '.', 1) !== 0)

 				{

 					 get_filenames($source_dir.$file.DIRECTORY_SEPARATOR, $include_path, TRUE);

 				}

-				elseif (substr($file, 0, 1) != ".")

+				elseif (strncmp($file, '.', 1) !== 0)

 				{

 			

 					$_filedata[] = ($include_path == TRUE) ? $source_dir.$file : $file;

@@ -201,4 +201,171 @@ if (! function_exists('get_filenames'))
 

 // --------------------------------------------------------------------

 

+/**

+ * Get Directory File Information

+ *

+ * Reads the specified directory and builds an array containing the filenames,  

+ * filesize, dates, and permissions

+ *

+ * Any sub-folders contained within the specified path are read as well.

+ *

+ * @access	public

+ * @param	string	path to source

+ * @param	bool	whether to include the path as part of the filename

+ * @param	bool	internal variable to determine recursion status - do not use in calls

+ * @return	array

+ */	

+if (! function_exists('get_dir_file_info'))

+{

+	function get_dir_file_info($source_dir, $include_path = FALSE, $_recursion = FALSE)

+	{

+		$_filedata = array();

+		$relative_path = $source_dir;

+				

+		if ($fp = @opendir($source_dir))

+		{

+			// reset the array and make sure $source_dir has a trailing slash on the initial call

+			if ($_recursion === FALSE)

+			{

+				$_filedata = array();

+				$source_dir = rtrim(realpath($source_dir), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR;

+			}

+

+			while (FALSE !== ($file = readdir($fp)))

+			{

+				if (@is_dir($source_dir.$file) && strncmp($file, '.', 1) !== 0)

+				{

+					 get_dir_file_info($source_dir.$file.DIRECTORY_SEPARATOR, $include_path, TRUE);

+				}

+				elseif (strncmp($file, '.', 1) !== 0)

+				{

+					$_filedata[$file] = get_file_info($source_dir.$file);

+					$_filedata[$file]['relative_path'] = $relative_path;

+				}

+			}

+			return $_filedata;

+		}

+		else

+		{

+			return FALSE;

+		}

+	}

+}

+

+// --------------------------------------------------------------------

+

+/**

+* Get File Info

+*

+* Given a file and path, returns the name, path, size, date modified

+* Second parameter allows you to explicitly declare what information you want returned

+* Options are: name, server_path, size, date, readable, writable, executable, fileperms

+* Returns FALSE if the file cannot be found.

+*

+* @access    public

+* @param    string    path to file

+* @param    mixed    array or comma separated string of information returned

+* @return    array

+*/    

+if (! function_exists('get_file_info'))

+{

+    function get_file_info($file, $returned_values = array('name', 'server_path', 'size', 'date'))

+    {

+

+        if (! file_exists($file))

+        {

+            return FALSE;

+        }

+

+        if (is_string($returned_values))

+        {

+            $returned_values = explode(',', $returned_values);

+        }

+

+        foreach ($returned_values as $key)

+        {

+            switch ($key)

+            {

+                case 'name':

+                    $fileinfo['name'] = substr(strrchr($file, '/'), 1);

+                    break;

+                case 'server_path':

+                    $fileinfo['server_path'] = $file;

+                    break;

+                case 'size':

+                    $fileinfo['size'] = filesize($file);

+                    break;

+                case 'date':

+                    $fileinfo['date'] = filectime($file);

+                    break;

+                case 'readable':

+                    $fileinfo['readable'] = is_readable($file);

+                    break;

+                case 'writable':

+                    // There are known problems using is_weritable on IIS.  It may not be reliable - consider fileperms()

+                    $fileinfo['writable'] = is_writable($file);

+                    break;

+                case 'executable':

+                    $fileinfo['executable'] = is_executable($file);

+                    break;

+                case 'fileperms':

+                    $fileinfo['fileperms'] = fileperms($file);

+                    break;

+            }

+        }

+

+        return $fileinfo;

+    }

+}

+

+// --------------------------------------------------------------------

+

+/**

+ * Get Mime by Extension

+ *

+ * Translates a file extension into a mime type based on config/mimes.php. 

+ * Returns FALSE if it can't determine the type, or open the mime config file

+ *

+ * Note: this is NOT an accurate way of determining file mime types, and is here strictly as a convenience

+ * It should NOT be trusted, and should certainly NOT be used for security

+ *

+ * @access	public

+ * @param	string	path to file

+ * @return	mixed

+ */	

+if (! function_exists('get_mime_by_extension'))

+{

+	function get_mime_by_extension($file)

+	{

+		$extension = substr(strrchr($file, '.'), 1);

+	

+		global $mimes;

+	

+		if (! is_array($mimes))

+		{

+			if (! require_once(APPPATH.'config/mimes.php'))

+			{

+				return FALSE;

+			}

+		}

+

+		if (array_key_exists($extension, $mimes))

+		{

+			if (is_array($mimes[$extension]))

+			{

+				// Multiple mime types, just give the first one

+				return current($mimes[$extension]);

+			}

+			else

+			{

+				return $mimes[$extension];

+			}

+		}

+		else

+		{

+			return FALSE;

+		}

+	}

+}

+

 ?>
\ No newline at end of file