+ return $count;
+}
+/**
+ * Read async transfert informations
+ * @return array containing informations.
+ */
+function
+jirafeau_get_async_ref ($ref)
+{
+ $out = array ();
+ $refinfos = VAR_ASYNC . s2p ("$ref") . "$ref";
+
+ if (!file_exists ($refinfos))
+ return $out;
+
+ $c = file ($refinfos);
+ $out['file_name'] = trim ($c[0]);
+ $out['mime_type'] = trim ($c[1]);
+ $out['key'] = trim ($c[2], NL);
+ $out['time'] = trim ($c[3]);
+ $out['onetime'] = trim ($c[4]);
+ $out['ip'] = trim ($c[5]);
+ $out['last_edited'] = trim ($c[6]);
+ $out['next_code'] = trim ($c[7]);
+ return $out;
+}
+
+/**
+ * Delete async transfert informations
+ */
+function
+jirafeau_async_delete ($ref)
+{
+ $p = s2p ("$ref");
+ if (file_exists (VAR_ASYNC . $p . $ref))
+ unlink (VAR_ASYNC . $p . $ref);
+ if (file_exists (VAR_ASYNC . $p . $ref . '_data'))
+ unlink (VAR_ASYNC . $p . $ref . '_data');
+ $parse = VAR_ASYNC . $p;
+ $scan = array();
+ while (file_exists ($parse)
+ && ($scan = scandir ($parse))
+ && count ($scan) == 2 // '.' and '..' folders => empty.
+ && basename ($parse) != basename (VAR_ASYNC))
+ {
+ rmdir ($parse);
+ $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1);
+ }
+}
+
+/**
+ * Init a new asynchronous upload.
+ * @param $finename Name of the file to send
+ * @param $one_time One time upload parameter
+ * @param $key eventual password (or blank)
+ * @param $time time limit
+ * @param $ip ip address of the client
+ * @return a string containing a temporary reference followed by a code or the string "Error"
+ */
+function
+jirafeau_async_init ($filename, $type, $one_time, $key, $time, $ip)
+{
+ $res = 'Error';
+
+ /* Create temporary folder. */
+ $ref;
+ $p;
+ $code = jirafeau_gen_random (4);
+ do
+ {
+ $ref = jirafeau_gen_random (32);
+ $p = VAR_ASYNC . s2p ($ref);
+ } while (file_exists ($p));
+ @mkdir ($p, 0755, true);
+ if (!file_exists ($p))
+ {
+ echo "Error";
+ return;
+ }
+
+ /* md5 password or empty */
+ $password = '';
+ if (!empty ($key))
+ $password = md5 ($key);
+
+ /* Store informations. */
+ $p .= $ref;
+ $handle = fopen ($p, 'w');
+ 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 .
+ date ('U') . NL . $code . NL);
+ fclose ($handle);
+
+ return $ref . NL . $code ;
+}
+
+/**
+ * Append a piece of file on the asynchronous upload.
+ * @param $ref asynchronous upload reference
+ * @param $file piece of data
+ * @param $code client code for this operation
+ * @return a string containing a next code to use or the string "Error"
+ */
+function
+jirafeau_async_push ($ref, $data, $code)
+{
+ /* Get async infos. */
+ $a = jirafeau_get_async_ref ($ref);
+
+ /* Check some errors. */
+ if (count ($a) == 0
+ || $a['next_code'] != "$code"
+ || empty ($data['tmp_name'])
+ || !is_uploaded_file ($data['tmp_name']))
+ return "Error";
+
+ $p = s2p ($ref);
+
+ /* Concatenate data. */
+ $r = fopen ($data['tmp_name'], 'r');
+ $w = fopen (VAR_ASYNC . $p . $ref . '_data', 'a');
+ while (!feof ($r))
+ {
+ if (fwrite ($w, fread ($r, 1024)) === false)
+ {
+ fclose ($r);
+ fclose ($w);
+ jirafeau_async_delete ($ref);
+ return "Error";
+ }
+ }
+ fclose ($r);
+ fclose ($w);
+ unlink ($data['tmp_name']);
+
+ /* 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 .
+ $a['time'] . NL . $a['onetime'] . NL . $a['ip'] . NL .
+ date ('U') . NL . $code . NL);
+ fclose ($handle);
+ return $code;
+}
+
+/**
+ * Finalyze an asynchronous upload.
+ * @param $ref asynchronous upload reference
+ * @param $code client code for this operation
+ * @return a string containing the download reference followed by a delete code or the string "Error"
+ */
+function
+jirafeau_async_end ($ref, $code)
+{
+ /* Get async infos. */
+ $a = jirafeau_get_async_ref ($ref);
+ if (count ($a) == 0
+ || $a['next_code'] != "$code")
+ return "Error";
+
+ /* Generate link infos. */
+ $p = VAR_ASYNC . s2p ($ref) . $ref . "_data";
+ if (!file_exists($p))
+ return "Error";
+ $md5 = md5_file ($p);
+ $size = filesize($p);
+ $np = s2p ($md5);
+ $delete_link_code = jirafeau_gen_random (8);
+
+ /* File already exist ? */
+ if (!file_exists (VAR_FILES . $np))
+ @mkdir (VAR_FILES . $np, 0755, true);
+ if (!file_exists (VAR_FILES . $np . $md5))
+ rename ($p, VAR_FILES . $np . $md5);
+
+ /* Increment or create count file. */
+ $counter = 0;
+ if (file_exists (VAR_FILES . $np . $md5 . '_count'))
+ {
+ $content = file (VAR_FILES . $np . $md5. '_count');
+ $counter = trim ($content[0]);
+ }
+ $counter++;
+ $handle = fopen (VAR_FILES . $np . $md5. '_count', 'w');
+ fwrite ($handle, $counter);
+ fclose ($handle);
+
+ /* Create link. */
+ $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 . $delete_link_code . NL);
+ fclose ($handle);
+ $md5_link = base_16_to_64 (md5_file ($link_tmp_name));
+ $l = s2p ("$md5_link");
+ if (!@mkdir (VAR_LINKS . $l, 0755, true) ||
+ !rename ($link_tmp_name, VAR_LINKS . $l . $md5_link))
+ echo "Error";
+
+ /* Clean async upload. */
+ jirafeau_async_delete ($ref);
+ return $md5_link . NL . $delete_link_code;