diff options
| author | Derek Jones <derek.jones@ellislab.com> | 2008-05-08 17:00:28 +0200 |
|---|---|---|
| committer | Derek Jones <derek.jones@ellislab.com> | 2008-05-08 17:00:28 +0200 |
| commit | 94a2182c95cc95646ad582616d335bce62152c86 (patch) | |
| tree | 8a803da29c737996d4708e64599f6ea9b1214048 | |
| parent | ee0a7f0083e9e3e2e667211acd3909e71aa1ec47 (diff) | |
added symbolic_permissions() and octal_permissions() to the File helper
| -rw-r--r-- | system/helpers/file_helper.php | 88 | ||||
| -rw-r--r-- | user_guide/changelog.html | 1 | ||||
| -rw-r--r-- | user_guide/helpers/file_helper.html | 18 |
3 files changed, 107 insertions, 0 deletions
diff --git a/system/helpers/file_helper.php b/system/helpers/file_helper.php index 21ed5ff97..bdde2d55d 100644 --- a/system/helpers/file_helper.php +++ b/system/helpers/file_helper.php @@ -368,4 +368,92 @@ if (! function_exists('get_mime_by_extension')) }
}
+// --------------------------------------------------------------------
+
+/**
+ * Symbolic Permissions
+ *
+ * Takes a numeric value representing a file's permissions and returns
+ * standard symbolic notation representing that value
+ *
+ * @access public
+ * @param int
+ * @return string
+ */
+if (! function_exists('symbolic_permissions'))
+{
+ function symbolic_permissions($perms)
+ {
+ if (($perms & 0xC000) == 0xC000)
+ {
+ $symbolic = 's'; // Socket
+ }
+ elseif (($perms & 0xA000) == 0xA000)
+ {
+ $symbolic = 'l'; // Symbolic Link
+ }
+ elseif (($perms & 0x8000) == 0x8000)
+ {
+ $symbolic = '-'; // Regular
+ }
+ elseif (($perms & 0x6000) == 0x6000)
+ {
+ $symbolic = 'b'; // Block special
+ }
+ elseif (($perms & 0x4000) == 0x4000)
+ {
+ $symbolic = 'd'; // Directory
+ }
+ elseif (($perms & 0x2000) == 0x2000)
+ {
+ $symbolic = 'c'; // Character special
+ }
+ elseif (($perms & 0x1000) == 0x1000)
+ {
+ $symbolic = 'p'; // FIFO pipe
+ }
+ else
+ {
+ $symbolic = 'u'; // Unknown
+ }
+
+ // Owner
+ $symbolic .= (($perms & 0x0100) ? 'r' : '-');
+ $symbolic .= (($perms & 0x0080) ? 'w' : '-');
+ $symbolic .= (($perms & 0x0040) ? (($perms & 0x0800) ? 's' : 'x' ) : (($perms & 0x0800) ? 'S' : '-'));
+
+ // Group
+ $symbolic .= (($perms & 0x0020) ? 'r' : '-');
+ $symbolic .= (($perms & 0x0010) ? 'w' : '-');
+ $symbolic .= (($perms & 0x0008) ? (($perms & 0x0400) ? 's' : 'x' ) : (($perms & 0x0400) ? 'S' : '-'));
+
+ // World
+ $symbolic .= (($perms & 0x0004) ? 'r' : '-');
+ $symbolic .= (($perms & 0x0002) ? 'w' : '-');
+ $symbolic .= (($perms & 0x0001) ? (($perms & 0x0200) ? 't' : 'x' ) : (($perms & 0x0200) ? 'T' : '-'));
+
+ return $symbolic;
+ }
+}
+
+// --------------------------------------------------------------------
+
+/**
+ * Octal Permissions
+ *
+ * Takes a numeric value representing a file's permissions and returns
+ * a three character string representing the file's octal permissions
+ *
+ * @access public
+ * @param int
+ * @return string
+ */
+if (! function_exists('octal_permissions'))
+{
+ function octal_permissions($perms)
+ {
+ return substr(sprintf('%o', $perms), -3);
+ }
+}
+
?>
\ No newline at end of file diff --git a/user_guide/changelog.html b/user_guide/changelog.html index 07637db08..7ce672710 100644 --- a/user_guide/changelog.html +++ b/user_guide/changelog.html @@ -90,6 +90,7 @@ SVN Commit: not currently released</p> <li>Helpers
<ul>
<li>Added a <a href="helpers/compatibility_helper.html">Compatibility Helper</a> for using some common PHP 5 functions safely in applications that might run on PHP 4 servers (thanks Seppo for the hard work and code contribution!)</li>
+ <li>Added <kbd>symbolic_permissions()</kbd> and <kbd>octal_permissions()</kbd> to the <a href='helpers/file_helper.html'>File helper</a>.</li>
<li>Added <kbd>form_button()</kbd> in the <a href="helpers/form_helper.html">Form helper</a>.</li>
<li>Changed the radio() and checkbox() functions to default to not checked by default.</li>
<li>Added the ability to include an optional HTTP Response Code in the <kbd>redirect()</kbd> function of the <a href="helpers/url_helper.html">URL Helper</a>.</li>
diff --git a/user_guide/helpers/file_helper.html b/user_guide/helpers/file_helper.html index 3fa92462b..13d0beb97 100644 --- a/user_guide/helpers/file_helper.html +++ b/user_guide/helpers/file_helper.html @@ -142,7 +142,25 @@ can optionally be added to the file names by setting the second parameter to TRU echo $file . ' is has a mime type of ' . get_mime_by_extension($file);</code>
</p>
<p class="critical"><strong>Note:</strong> This is not an accurate way of determining file mime types, and is here strictly as a convenience. It should not be used for security.</p>
+
+<h2>symbolic_permissions(<kbd>$perms</kbd>)</h2>
+
+<p>Takes numeric permissions (such as is returned by <kbd>fileperms()</kbd> and returns standard symbolic notation of file permissions.</p>
+
+<code>echo symbolic_permissions(fileperms('./index.php'));<br />
+<br />
+// -rw-r--r--</code>
+
+<h2>octal_permissions(<kbd>$perms</kbd>)</h2>
+
+<p>Takes numeric permissions (such as is returned by <kbd>fileperms()</kbd> and returns a three character octal notation of file permissions.</p>
+
+<code>echo octal_permissions(fileperms('./index.php'));<br />
+<br />
+// 644</code>
+
</div>
+
<!-- END CONTENT -->
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