fix bad permissions on files

[jirafeau.git] / lib / functions.php

diff --git a/lib/functions.php b/lib/functions.php
old mode 100755 (executable)
new mode 100644 (file)
index c07b6c9..c613d4a
--- a/lib/functions.php
+++ b/lib/functions.php
@@ -90,6 +90,18 @@ jirafeau_gen_random ($l)
     return $code;
 }
 
     return $code;
 }
 

+function is_ssl() {
+    if ( isset($_SERVER['HTTPS']) ) {
+        if ( 'on' == strtolower($_SERVER['HTTPS']) )
+            return true;
+        if ( '1' == $_SERVER['HTTPS'] )
+            return true;
+    } elseif ( isset($_SERVER['SERVER_PORT']) && ( '443' == $_SERVER['SERVER_PORT'] ) ) {
+        return true;
+    }
+    return false;
+}
+

 function
 jirafeau_human_size ($octets)
 {
 function
 jirafeau_human_size ($octets)
 {


@@ -122,10 +134,11 @@ function
 jirafeau_clean_rm_file ($md5)
 {
     $p = s2p ("$md5");
 jirafeau_clean_rm_file ($md5)
 {
     $p = s2p ("$md5");

-    if (file_exists (VAR_FILES . $p . $md5))
-        unlink (VAR_FILES . $p . $md5);
-    if (file_exists (VAR_FILES . $p . $md5 . '_count'))
-        unlink (VAR_FILES . $p . $md5 . '_count');
+    $f = VAR_FILES . $p . $md5;
+    if (file_exists ($f) && is_file ($f))
+        unlink ($f);
+    if (file_exists ($f . '_count') && is_file ($f . '_count'))
+        unlink ($f . '_count');

     $parse = VAR_FILES . $p;
     $scan = array();
     while (file_exists ($parse)
     $parse = VAR_FILES . $p;
     $scan = array();
     while (file_exists ($parse)


@@ -307,13 +320,14 @@ jirafeau_delete_file ($md5)
  * @param $time the time of validity of the file
  * @param $ip uploader's ip
  * @param $crypt boolean asking to crypt or not
  * @param $time the time of validity of the file
  * @param $ip uploader's ip
  * @param $crypt boolean asking to crypt or not

+ * @param $link_name_length size of the link name

  * @returns an array containing some information
  *   'error' => information on possible errors
  *   'link' => the link name of the uploaded file
  *   'delete_link' => the link code to delete file
  */
 function
  * @returns an array containing some information
  *   'error' => information on possible errors
  *   '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, $crypt)
+jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt, $link_name_length)

 {
     if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name']))
     {
 {
     if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name']))
     {


@@ -379,7 +393,7 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt)
     fclose ($handle);
 
     /* Create delete code. */
     fclose ($handle);
 
     /* Create delete code. */

-    $delete_link_code = jirafeau_gen_random (8);
+    $delete_link_code = jirafeau_gen_random (5);

 
     /* md5 password or empty. */
     $password = '';
 
     /* md5 password or empty. */
     $password = '';


@@ -387,14 +401,14 @@ jirafeau_upload ($file, $one_time_download, $key, $time, $ip, $crypt)
         $password = md5 ($key);
 
     /* create link file */
         $password = md5 ($key);
 
     /* create link file */

-    $link_tmp_name =  VAR_LINKS . $md5 . rand (0, 10000) . ' .tmp';
+    $link_tmp_name =  VAR_LINKS . $md5 . rand (0, 10000) . '.tmp';

     $handle = fopen ($link_tmp_name, 'w');
     fwrite ($handle,
             $name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
             NL . $md5. NL . ($one_time_download ? 'O' : 'R') . NL . date ('U') .
             NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O'));
     fclose ($handle);
     $handle = fopen ($link_tmp_name, 'w');
     fwrite ($handle,
             $name . NL. $mime_type . NL. $size . NL. $password . NL. $time .
             NL . $md5. NL . ($one_time_download ? 'O' : 'R') . NL . date ('U') .
             NL . $ip . NL. $delete_link_code . NL . ($crypted ? 'C' : 'O'));
     fclose ($handle);

-    $md5_link = base_16_to_64 (md5_file ($link_tmp_name));
+    $md5_link = substr(base_16_to_64 (md5_file ($link_tmp_name)), 0, $link_name_length);

     $l = s2p ("$md5_link");
     if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
         !rename ($link_tmp_name,  VAR_LINKS . $l . $md5_link))
     $l = s2p ("$md5_link");
     if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
         !rename ($link_tmp_name,  VAR_LINKS . $l . $md5_link))


@@ -489,10 +503,10 @@ show_errors ()
     }
 }
 
     }
 }
 

-function check_errors ()
+function check_errors ($cfg)

 {
     if (file_exists (JIRAFEAU_ROOT . 'install.php')
 {
     if (file_exists (JIRAFEAU_ROOT . 'install.php')

-        && !file_exists (JIRAFEAU_ROOT . 'lib/config.local.php'))
+        && !($cfg['installation_done'] === true))

     {
         header('Location: install.php'); 
         exit;
     {
         header('Location: install.php'); 
         exit;


@@ -513,12 +527,6 @@ function check_errors ()
 
      if (!is_writable (VAR_BLOCK))
         add_error (t('The block directory is not writable!'), VAR_BLOCK);
 
      if (!is_writable (VAR_BLOCK))
         add_error (t('The block directory is not writable!'), VAR_BLOCK);

-
-   /* Check if the install.php script is still in the directory. */
-    if (file_exists (JIRAFEAU_ROOT . 'install.php'))
-        add_error (t('Installer script still present'),
-             t('Please make sure to delete the installer script ' .
-               '"install.php" before continuing.'));

 }
 
 /**
 }
 
 /**


@@ -882,10 +890,11 @@ jirafeau_async_push ($ref, $data, $code)
   * @param $ref asynchronous upload reference
   * @param $code client code for this operation
   * @param $crypt boolean asking to crypt or not
   * @param $ref asynchronous upload reference
   * @param $code client code for this operation
   * @param $crypt boolean asking to crypt or not

+  * @param $link_name_length link name lenght

   * @return  a string containing the download reference followed by a delete code or the string "Error"
   */
 function
   * @return  a string containing the download reference followed by a delete code or the string "Error"
   */
 function

-jirafeau_async_end ($ref, $code, $crypt)
+jirafeau_async_end ($ref, $code, $crypt, $link_name_length)

 {
     /* Get async infos. */
     $a = jirafeau_get_async_ref ($ref);
 {
     /* Get async infos. */
     $a = jirafeau_get_async_ref ($ref);


@@ -902,7 +911,7 @@ jirafeau_async_end ($ref, $code, $crypt)
     $crypt_key = '';
     if ($crypt == true && extension_loaded('mcrypt'))
     {
     $crypt_key = '';
     if ($crypt == true && extension_loaded('mcrypt'))
     {

-        $cypt_key = jirafeau_encrypt_file ($p, $p);
+        $crypt_key = jirafeau_encrypt_file ($p, $p);

         if (strlen($crypt_key) > 0)
             $crypted = true;
     }
         if (strlen($crypt_key) > 0)
             $crypted = true;
     }


@@ -910,7 +919,7 @@ jirafeau_async_end ($ref, $code, $crypt)
     $md5 = md5_file ($p);
     $size = filesize($p);
     $np = s2p ($md5);
     $md5 = md5_file ($p);
     $size = filesize($p);
     $np = s2p ($md5);

-    $delete_link_code = jirafeau_gen_random (8);
+    $delete_link_code = jirafeau_gen_random (5);

     
     /* File already exist ? */ 
     if (!file_exists (VAR_FILES . $np))
     
     /* File already exist ? */ 
     if (!file_exists (VAR_FILES . $np))


@@ -931,14 +940,14 @@ jirafeau_async_end ($ref, $code, $crypt)
     fclose ($handle);
     
     /* Create link. */
     fclose ($handle);
     
     /* Create link. */

-    $link_tmp_name =  VAR_LINKS . $md5 . rand (0, 10000) . ' .tmp';
+    $link_tmp_name =  VAR_LINKS . $md5 . rand (0, 10000) . '.tmp';

     $handle = fopen ($link_tmp_name, 'w');
     fwrite ($handle,
             $a['file_name'] . NL . $a['mime_type'] . NL . $size . NL .
             $a['key'] . NL . $a['time'] . NL . $md5 . NL . $a['onetime'] . NL .
             date ('U') . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : 'O'));
     fclose ($handle);
     $handle = fopen ($link_tmp_name, 'w');
     fwrite ($handle,
             $a['file_name'] . NL . $a['mime_type'] . NL . $size . NL .
             $a['key'] . NL . $a['time'] . NL . $md5 . NL . $a['onetime'] . NL .
             date ('U') . NL . $a['ip'] . NL . $delete_link_code . NL . ($crypted ? 'C' : 'O'));
     fclose ($handle);

-    $md5_link = base_16_to_64 (md5_file ($link_tmp_name));
+    $md5_link = substr(base_16_to_64 (md5_file ($link_tmp_name)), 0, $link_name_length);

     $l = s2p ("$md5_link");
     if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
         !rename ($link_tmp_name,  VAR_LINKS . $l . $md5_link))
     $l = s2p ("$md5_link");
     if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
         !rename ($link_tmp_name,  VAR_LINKS . $l . $md5_link))


@@ -1289,6 +1298,16 @@ jirafeau_admin_clean_block ()
     return $count;
 }
 
     return $count;
 }
 

+function
+jirafeau_crypt_create_iv($base, $size)
+{
+    $iv = '';
+    while (strlen ($iv) < $size)
+        $iv = $iv . $base;
+    $iv = substr($iv, 0, $size);
+    return $iv;
+}
+

 /**
  * Crypt file and returns decrypt key.
  * @param $fp_src file path to the file to crypt.
 /**
  * Crypt file and returns decrypt key.
  * @param $fp_src file path to the file to crypt.


@@ -1304,12 +1323,12 @@ jirafeau_encrypt_file ($fp_src, $fp_dst)
 
     /* Prepare module. */
     $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
 
     /* Prepare module. */
     $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');

-    $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($m), MCRYPT_DEV_URANDOM);

     /* Generate key. */
     /* Generate key. */

-    $ks = mcrypt_enc_get_key_size($m);
-    $key = substr(md5(jirafeau_gen_random(12)), 0, $ks);
+    $crypt_key = jirafeau_gen_random (10);
+    $md5_key = md5($crypt_key);
+    $iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size($m));

     /* Init module. */
     /* Init module. */

-    mcrypt_generic_init($m, $key, $iv);
+    mcrypt_generic_init($m, $md5_key, $iv);

     /* Crypt file. */
     $r = fopen ($fp_src, 'r');
     $w = fopen ($fp_dst, 'c');
     /* Crypt file. */
     $r = fopen ($fp_src, 'r');
     $w = fopen ($fp_dst, 'c');


@@ -1324,7 +1343,7 @@ jirafeau_encrypt_file ($fp_src, $fp_dst)
     /* Cleanup. */
     mcrypt_generic_deinit($m);
     mcrypt_module_close($m);
     /* Cleanup. */
     mcrypt_generic_deinit($m);
     mcrypt_module_close($m);

-    return $key . "." . base64_encode($iv);
+    return $crypt_key;

 }
 
 /**
 }
 
 /**


@@ -1341,13 +1360,12 @@ jirafeau_decrypt_file ($fp_src, $fp_dst, $k)
     if ($fs === false || $fs == 0 || !extension_loaded('mcrypt'))
         return false;
 
     if ($fs === false || $fs == 0 || !extension_loaded('mcrypt'))
         return false;
 

-    /* Extract key and iv. */
-    $ex = explode (".", $k);
-    $key = $ex[0];
-    $iv = base64_decode($ex[1]);

     /* Init module */
     $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');
     /* Init module */
     $m = mcrypt_module_open('rijndael-256', '', 'ofb', '');

-    mcrypt_generic_init($m, $key, $iv);
+    /* Extract key and iv. */
+    $crypt_key = $k;
+    $md5_key = md5($crypt_key);
+    $iv = jirafeau_crypt_create_iv ($md5_key, mcrypt_enc_get_iv_size($m));

     /* Decrypt file. */
     $r = fopen ($fp_src, 'r');
     $w = fopen ($fp_dst, 'c');
     /* Decrypt file. */
     $r = fopen ($fp_src, 'r');
     $w = fopen ($fp_dst, 'c');