X-Git-Url: https://git.p6c8.net/jirafeau_project.git/blobdiff_plain/5d7c0d3ce08074fff55e7731490fe786cd6101e6..df31fed41e6f10218a99ece4a4f47571eea360f5:/lib/functions.php

diff --git a/lib/functions.php b/lib/functions.php
index 3492745..b3dc904 100644
--- a/lib/functions.php
+++ b/lib/functions.php
@@ -2,7 +2,7 @@
 /*
  *  Jirafeau, your web file repository
  *  Copyright (C) 2008  Julien "axolotl" BERNARD <axolotl@magieeternelle.org>
- *  Copyright (C) 2015  Jerome Jutteau <j.jutteau@gmail.com>
+ *  Copyright (C) 2015  Jerome Jutteau <jerome@jutteau.fr>
  *  Copyright (C) 2015  Nicola Spanti (RyDroid) <dev@nicola-spanti.info>
  *
  *  This program is free software: you can redistribute it and/or modify
@@ -192,12 +192,16 @@ function jirafeau_ini_to_bytes($value)
     switch (strtoupper($modifier)) {
     case 'P':
         $bytes *= 1024;
+        // no break
     case 'T':
         $bytes *= 1024;
+        // no break
     case 'G':
         $bytes *= 1024;
+        // no break
     case 'M':
         $bytes *= 1024;
+        // no break
     case 'K':
         $bytes *= 1024;
     }
@@ -210,8 +214,10 @@ function jirafeau_ini_to_bytes($value)
  */
 function jirafeau_get_max_upload_size_bytes()
 {
-    return min(jirafeau_ini_to_bytes(ini_get('post_max_size')),
-               jirafeau_ini_to_bytes(ini_get('upload_max_filesize')));
+    return min(
+        jirafeau_ini_to_bytes(ini_get('post_max_size')),
+        jirafeau_ini_to_bytes(ini_get('upload_max_filesize'))
+    );
 }
 
 /**
@@ -319,6 +325,58 @@ function jirafeau_delete_file($hash)
     return $count;
 }
 
+
+/** hash file's content
+ * @param $method hash method, see 'file_hash' option. Valid methods are 'md5', 'md5_outside' or 'random'
+ * @param $file_path file to hash
+ * @returns hash string
+ */
+function jirafeau_hash_file($method, $file_path)
+{
+    switch ($method) {
+        case 'md5_outside':
+            return jirafeau_md5_outside($file_path);
+        case 'md5':
+            return md5_file($file_path);
+        case 'random':
+            return jirafeau_gen_random(32);
+    }
+    return md5_file($file_path);
+}
+
+/** hash part of file: start, end and size.
+ * This is a partial file hash, faster but weaker.
+ * @param $file_path file to hash
+ * @returns hash string
+ */
+function jirafeau_md5_outside($file_path)
+{
+    $out = false;
+    $handle = fopen($file_path, "r");
+    if ($handle === false) {
+        return false;
+    }
+    $size = filesize($file_path);
+    if ($size === false) {
+        goto err;
+    }
+    $first = fread($handle, 64);
+    if ($first === false) {
+        goto err;
+    }
+    if (fseek($handle, $size < 64 ? 0 : $size - 64) == -1) {
+        goto err;
+    }
+    $last = fread($handle, 64);
+    if ($last === false) {
+        goto err;
+    }
+    $out = md5($first . $last . $size);
+    err:
+    fclose($handle);
+    return $out;
+}
+
 /**
  * handles an uploaded file
  * @param $file the file struct given by $_FILE[]
@@ -333,7 +391,7 @@ function jirafeau_delete_file($hash)
  *   'link' => the link name of the uploaded file
  *   'delete_link' => the link code to delete file
  */
-function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length)
+function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length, $file_hash_method)
 {
     if (empty($file['tmp_name']) || !is_uploaded_file($file['tmp_name'])) {
         return (array(
@@ -361,7 +419,7 @@ function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $l
     }
 
     /* file informations */
-    $hash = md5_file($file['tmp_name']);
+    $hash = jirafeau_hash_file($file_hash_method, $file['tmp_name']);
     $name = str_replace(NL, '', trim($file['name']));
     $mime_type = $file['type'];
     $size = $file['size'];
@@ -407,10 +465,12 @@ function jirafeau_upload($file, $one_time_download, $key, $time, $ip, $crypt, $l
     /* create link file */
     $link_tmp_name =  VAR_LINKS . $hash . rand(0, 10000) . '.tmp';
     $handle = fopen($link_tmp_name, 'w');
-    fwrite($handle,
-            $name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
+    fwrite(
+        $handle,
+        $name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
             NL . $hash. NL . ($one_time_download ? 'O' : 'R') . NL . time() .
-            NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O'));
+            NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O')
+    );
     fclose($handle);
     $hash_link = substr(base_16_to_64(md5_file($link_tmp_name)), 0, $link_name_length);
     $l = s2p("$hash_link");
@@ -517,6 +577,14 @@ function check_errors($cfg)
     if (!is_writable(VAR_ASYNC)) {
         add_error(t('ASYNC_DIR_W'), VAR_ASYNC);
     }
+
+    if ($cfg['enable_crypt'] && $cfg['litespeed_workaround']) {
+        add_error(t('INCOMPATIBLE_OPTIONS_W'), 'enable_crypt=true<br>litespeed_workaround=true');
+    }
+
+    if ($cfg['one_time_download'] && $cfg['litespeed_workaround']) {
+        add_error(t('INCOMPATIBLE_OPTIONS_W'), 'one_time_download=true<br>litespeed_workaround=true');
+    }
 }
 
 /**
@@ -567,15 +635,9 @@ function jirafeau_admin_list($name, $file_hash, $link_hash)
         echo t('LS_FILES');
     }
     echo '</legend>';
-    echo '<table border="1" width="1100">';
+    echo '<table>';
     echo '<tr>';
-    echo '<th>' . t('FILENAME') . '</th>';
-    echo '<th>' . t('TYPE') . '</th>';
-    echo '<th>' . t('SIZE') . '</th>';
-    echo '<th>' . t('EXPIRE') . '</th>';
-    echo '<th>' . t('ONETIME') . '</th>';
-    echo '<th>' . t('UPLOAD_DATE') . '</th>';
-    echo '<th>' . t('ORIGIN') . '</th>';
+    echo '<th></th>';
     echo '<th>' . t('ACTION') . '</th>';
     echo '</tr>';
 
@@ -612,22 +674,15 @@ function jirafeau_admin_list($name, $file_hash, $link_hash)
                 echo '<tr>';
                 echo '<td>' .
                 '<strong><a id="upload_link" href="f.php?h='. jirafeau_escape($node) .'" title="' .
-                    t('DL_PAGE') . '">' . jirafeau_escape($l['file_name']) . '</a></strong>';
-                echo '</td>';
-                echo '<td>' . jirafeau_escape($l['mime_type']) . '</td>';
-                echo '<td>' . jirafeau_human_size($l['file_size']) . '</td>';
-                echo '<td>' . ($l['time'] == -1 ? '∞' : jirafeau_get_datetimefield($l['time'])) . '</td>';
-                echo '<td>';
-                if ($l['onetime'] == 'O') {
-                    echo 'Y';
-                } else {
-                    echo 'N';
-                }
-                echo '</td>';
-                echo '<td>' . jirafeau_get_datetimefield($l['upload_date']) . '</td>';
-                echo '<td>' . $l['ip'] . '</td>';
-                echo '<td>' .
-                '<form method="post">' .
+                    t('DL_PAGE') . '">' . jirafeau_escape($l['file_name']) . '</a></strong><br/>';
+                echo t('TYPE') . ': ' . jirafeau_escape($l['mime_type']) . '<br/>';
+                echo t('SIZE') . ': ' . jirafeau_human_size($l['file_size']) . '<br>';
+                echo t('EXPIRE') . ': ' . ($l['time'] == -1 ? '∞' : jirafeau_get_datetimefield($l['time'])) . '<br/>';
+                echo t('ONETIME') . ': ' . ($l['onetime'] == 'O' ? 'Yes' : 'No') . '<br/>';
+                echo t('UPLOAD_DATE') . ': ' . jirafeau_get_datetimefield($l['upload_date']) . '<br/>';
+                echo t('ORIGIN') . ': ' . $l['ip'] . '<br/>';
+                echo '</td><td>';
+                echo '<form method="post">' .
                 '<input type = "hidden" name = "action" value = "download"/>' .
                 '<input type = "hidden" name = "link" value = "' . $node . '"/>' .
                 jirafeau_admin_csrf_field() .
@@ -806,6 +861,10 @@ function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip)
         return;
     }
 
+    /* touch empty data file */
+    $w_path = $p . $ref . '_data';
+    touch($w_path);
+
     /* md5 password or empty */
     $password = '';
     if (!empty($key)) {
@@ -815,11 +874,13 @@ function jirafeau_async_init($filename, $type, $one_time, $key, $time, $ip)
     /* Store informations. */
     $p .= $ref;
     $handle = fopen($p, 'w');
-    fwrite($handle,
-            str_replace(NL, '', trim($filename)) . NL .
+    fwrite(
+        $handle,
+        str_replace(NL, '', trim($filename)) . NL .
             str_replace(NL, '', trim($type)) . NL . $password . NL .
             $time . NL . ($one_time ? 'O' : 'R') . NL . $ip . NL .
-            time() . NL . $code . NL);
+            time() . NL . $code . NL
+    );
     fclose($handle);
 
     return $ref . NL . $code ;
@@ -877,10 +938,12 @@ function jirafeau_async_push($ref, $data, $code, $max_file_size)
     /* Update async file. */
     $code = jirafeau_gen_random(4);
     $handle = fopen(VAR_ASYNC . $p . $ref, 'w');
-    fwrite($handle,
-            $a['file_name'] . NL. $a['mime_type'] . NL. $a['key'] . NL .
+    fwrite(
+        $handle,
+        $a['file_name'] . NL. $a['mime_type'] . NL. $a['key'] . NL .
             $a['time'] . NL . $a['onetime'] . NL . $a['ip'] . NL .
-            time() . NL . $code . NL);
+            time() . NL . $code . NL
+    );
     fclose($handle);
     return $code;
 }
@@ -893,7 +956,7 @@ function jirafeau_async_push($ref, $data, $code, $max_file_size)
   * @param $link_name_length link name length
   * @return a string containing the download reference followed by a delete code or the string 'Error'
   */
-function jirafeau_async_end($ref, $code, $crypt, $link_name_length)
+function jirafeau_async_end($ref, $code, $crypt, $link_name_length, $file_hash_method)
 {
     /* Get async infos. */
     $a = jirafeau_get_async_ref($ref);
@@ -917,7 +980,7 @@ function jirafeau_async_end($ref, $code, $crypt, $link_name_length)
         }
     }
 
-    $hash = md5_file($p);
+    $hash = jirafeau_hash_file($file_hash_method, $p);
     $size = filesize($p);
     $np = s2p($hash);
     $delete_link_code = jirafeau_gen_random(5);
@@ -944,16 +1007,18 @@ function jirafeau_async_end($ref, $code, $crypt, $link_name_length)
     /* Create link. */
     $link_tmp_name =  VAR_LINKS . $hash . rand(0, 10000) . '.tmp';
     $handle = fopen($link_tmp_name, 'w');
-    fwrite($handle,
-            $a['file_name'] . NL . $a['mime_type'] . NL . $size . NL .
+    fwrite(
+        $handle,
+        $a['file_name'] . NL . $a['mime_type'] . NL . $size . NL .
             $a['key'] . NL . $a['time'] . NL . $hash . NL . $a['onetime'] . NL .
-            time() . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : 'O'));
+            time() . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : 'O')
+    );
     fclose($handle);
     $hash_link = substr(base_16_to_64(md5_file($link_tmp_name)), 0, $link_name_length);
     $l = s2p("$hash_link");
     if (!@mkdir(VAR_LINKS . $l, 0755, true) ||
         !rename($link_tmp_name, VAR_LINKS . $l . $hash_link)) {
-        echo "Error";
+        return 'Error';
     }
 
     /* Clean async upload. */
@@ -1101,7 +1166,8 @@ function jirafeau_challenge_ip($allowedIpList, $challengedIp)
  * Check if Jirafeau has a restriction on the IP address for uploading.
  * @return true if uploading is IP restricted, false otherwise.
  */
-function jirafeau_upload_has_ip_restriction($cfg) {
+function jirafeau_upload_has_ip_restriction($cfg)
+{
     return count($cfg['upload_ip']) > 0;
 }
 
@@ -1139,7 +1205,7 @@ function jirafeau_challenge_upload_ip_without_password($cfg, $challengedIp)
  * @param $password password to be challenged
  * @return true if access is valid, false otherwise.
  */
-function jirafeau_challenge_upload ($cfg, $ip, $password)
+function jirafeau_challenge_upload($cfg, $ip, $password)
 {
     return jirafeau_challenge_upload_ip_without_password($cfg, $ip) ||
             (!jirafeau_has_upload_password($cfg) && !jirafeau_upload_has_ip_restriction($cfg)) ||
@@ -1284,3 +1350,79 @@ function jirafeau_admin_csrf_field()
 {
     return "<input type='hidden' name='admin_csrf' value='". $_SESSION['admin_csrf'] . "'/>";
 }
+
+function jirafeau_dir_size($dir)
+{
+    $size = 0;
+    foreach (glob(rtrim($dir, '/').'/*', GLOB_NOSORT) as $entry) {
+        $size += is_file($entry) ? filesize($entry) : jirafeau_dir_size($entry);
+    }
+    return $size;
+}
+
+function jirafeau_export_cfg($cfg)
+{
+    $content = '<?php' . NL;
+    $content .= '/* This file was generated by the install process. ' .
+               'You can edit it. Please see config.original.php to understand the ' .
+               'configuration items. */' . NL;
+    $content .= '$cfg = ' . var_export($cfg, true) . ';';
+
+    $fileWrite = file_put_contents(JIRAFEAU_CFG, $content);
+
+    if (false === $fileWrite) {
+        jirafeau_fatal_error(t('Can not write local configuration file'));
+    }
+}
+
+function jirafeau_mkdir($path)
+{
+    return !(!file_exists($path) && !@mkdir($path, 0755));
+}
+
+/**
+ * Returns true whether the path is writable or we manage to make it
+ * so, which essentially is the same thing.
+ * @param $path is the file or directory to be tested.
+ * @return true if $path is writable.
+ */
+function jirafeau_is_writable($path)
+{
+    /* "@" gets rid of error messages. */
+    return is_writable($path) || @chmod($path, 0777);
+}
+
+function jirafeau_check_var_dir($path)
+{
+    $mkdir_str1 = t('CANNOT_CREATE_DIR') . ':';
+    $mkdir_str2 = t('MANUAL_CREATE');
+    $write_str1 = t('DIR_NOT_W') . ':';
+    $write_str2 = t('You should give the write permission to the web server on ' .
+                    'this directory.');
+    $solution_str = t('HERE_SOLUTION') . ':';
+
+    if (!jirafeau_mkdir($path) || !jirafeau_is_writable($path)) {
+        return array('has_error' => true,
+                      'why' => $mkdir_str1 . '<br /><code>' .
+                               $path . '</code><br />' . $solution_str .
+                               '<br />' . $mkdir_str2);
+    }
+
+    foreach (array('files', 'links', 'async') as $subdir) {
+        $subpath = $path.$subdir;
+
+        if (!jirafeau_mkdir($subpath) || !jirafeau_is_writable($subpath)) {
+            return array('has_error' => true,
+                          'why' => $mkdir_str1 . '<br /><code>' .
+                                   $subpath . '</code><br />' . $solution_str .
+                                   '<br />' . $mkdir_str2);
+        }
+    }
+
+    return array('has_error' => false, 'why' => '');
+}
+
+function jirafeau_add_ending_slash($path)
+{
+    return $path . ((substr($path, -1) == '/') ? '' : '/');
+}