From 6685b908eeeed8c78c4b86b6f6443463bf1a87fe Mon Sep 17 00:00:00 2001
From: Nicolas Boisselier <nicolas.boisselier@gmail.com>
Date: Wed, 31 Aug 2016 02:07:42 +0100
Subject: [PATCH] user_infos

---
 lib/php/nb.php | 79 +++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 75 insertions(+), 4 deletions(-)

diff --git a/lib/php/nb.php b/lib/php/nb.php
index 76703ca2..8a13dae9 100644
--- a/lib/php/nb.php
+++ b/lib/php/nb.php
@@ -597,13 +597,84 @@ class NB {
   }
 
   public static function untilde($path) {
-    if (!function_exists('posix_getuid')) return $path;
-    return preg_replace_callback('/^(~)(\w+)?/',function($m){
+    #if (!function_exists('posix_getuid')) return $path;
+    return preg_replace_callback('/^(~)([\w_-]+)?/',function($m){
 
-      if (!empty($m[2])) return str_replace($m[1].$m[2],posix_getpwnam($m[2])['dir'],$m[0]);
+      $user = empty($m[2]) ? '' : $m[2];
+      $infos = self::user_infos($user);
 
-      return str_replace($m[1],posix_getpwuid(posix_getuid())['dir'],$m[0]);
+      if (empty($infos)) return $path;
+
+      return preg_replace("/^~".($user ? $infos['name'] : '')."/",$infos['dir'],$m[0]);
     },$path);
   }
+
+  public static function user_infos($user=null,$key=''){
+    
+    if ($user === null) $user = '';
+    if ($key === null) $key = '';
+    $infos = [];
+
+    # Linux standard
+    if (function_exists('posix_getuid')) {
+      if ($user==='') $user = posix_getuid();
+      if (preg_match('/^\d+$/',$user)) $infos = posix_getpwuid($user);
+      else $infos = posix_getpwnam($user);
+    }
+
+    # /etc/passwd
+    if (!$infos
+      and $user !== ''
+      and self::osname()!='darwin'
+      and is_readable('/etc/passwd')
+      and $handle = fopen("/etc/passwd", "r")
+    ) {
+      $i = preg_match('/^\d+$/',$user) ? 2 : 0; # uid or name
+
+			while (($line = fgets($handle)) !== false) {
+        // process the line read.
+        $line = explode(':',$line);
+        if ($user != $line[$i]) continue;
+        $infos = [
+          'name' => $line[0],
+          'uid' => $line[2],
+          'gid' => $line[3],
+          'dir' => $line[5],
+        ];
+        break;
+        #if ($user == (int)$user)
+			}
+			fclose($handle);
+    }
+
+    # Command
+    if (!$infos) {
+      $cmd = $user === '' ? 'id' : sprintf('id %s',$user);
+      $line = []; exec(escapeshellcmd($user === '' ? 'id' : 'id '.escapeshellarg($user)).' 2>/dev/null',$line);
+      if ($line and preg_match('/uid=(\d+)\((\S+)\) gid=(\d+)\((\S+)\)/',$line[0],$infos)) {
+        array_shift($infos);
+        $infos = [
+          'name' => $infos[1],
+          'uid' => $infos[0],
+          'gid' => $infos[2],
+          '_group' => $infos[3],
+        ];
+      }
+    }
+
+    if ((!$key or $key == 'dir') and empty($infos['dir']) and !empty($infos['name'])) {
+      $line = []; exec("echo ~".($infos['name']),$line);
+      $infos['dir'] = $line[0];
+      #debug ( `echo ~$cmd` );
+    }
+
+    if ($key) return (empty($infos[$key]) ? '' : $infos[$key] );
+    return $infos;
+  }
+
+  public static function osname(){
+    return strtolower(php_uname('s'));
+    return strtolower(preg_replace('/\s+.*$/','', php_uname()));
+  }
 } # < Class
 ?>
-- 
2.47.3