X-Git-Url: https://git.p6c8.net/jirafeau.git/blobdiff_plain/ba6f06965a4d9846e23d99a0e9f74b1361c18c40..5d665388224866c9a2f470c020b01cb70ca4a782:/lib/functions.php diff --git a/lib/functions.php b/lib/functions.php index cb2226a..10e9868 100644 --- a/lib/functions.php +++ b/lib/functions.php @@ -17,91 +17,142 @@ * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ - /** * transforms a php.ini string representing a value in an integer * @param $value the value from php.ini * @returns an integer for this value */ -function jirafeau_ini_to_bytes($value) { - $modifier = substr($value, -1); - $bytes = substr($value, 0, -1); - switch(strtoupper($modifier)) { - case 'P': - $bytes *= 1024; - case 'T': - $bytes *= 1024; - case 'G': - $bytes *= 1024; - case 'M': - $bytes *= 1024; - case 'K': - $bytes *= 1024; - default: - break; - } - return $bytes; +function jirafeau_ini_to_bytes ($value) +{ + $modifier = substr ($value, -1); + $bytes = substr ($value, 0, -1); + switch (strtoupper ($modifier)) + { + case 'P': + $bytes *= 1024; + case 'T': + $bytes *= 1024; + case 'G': + $bytes *= 1024; + case 'M': + $bytes *= 1024; + case 'K': + $bytes *= 1024; + default: + break; + } + return $bytes; } /** * gets the maximum upload size according to php.ini * @returns the maximum upload size */ -function jirafeau_get_max_upload_size() { - return min(jirafeau_ini_to_bytes(ini_get('post_max_size')), jirafeau_ini_to_bytes(ini_get('upload_max_filesize'))); +function +jirafeau_get_max_upload_size () +{ + return min (jirafeau_ini_to_bytes (ini_get ('post_max_size')), + jirafeau_ini_to_bytes (ini_get ('upload_max_filesize'))); } /** - * detects if a given filename is present in a directory and find an alternate filename - * @param $name the initial filename - * @param $dir the directory to explore (finishing with a '/') - * @returns an alternate filename, possibly the initial filename + * gets a string explaining the error + * @param $code the error code + * @returns a string explaining the error */ -function jirafeau_detect_collision($name, $dir) { - if(!file_exists($dir . $name)) { - return $name; - } - - $dot = strpos($name, '.'); - $dot = ($dot === false) ? strlen($name) : $dot; - $first = substr($name, 0, $dot); - $second = substr($name, $dot); - $i = 1; - do { - $new_name = $first . '-' . $i . $second; - $i++; - } while(file_exists($dir . $new_name)); - - return $new_name; +function +jirafeau_upload_errstr ($code) +{ + switch ($code) + { + case UPLOAD_ERR_INI_SIZE: + case UPLOAD_ERR_FORM_SIZE: + return _('Your file exceeds the maximum authorized file size. '); + break; + + case UPLOAD_ERR_PARTIAL: + case UPLOAD_ERR_NO_FILE: + return + _ + ('Your file was not uploaded correctly. You may succeed in retrying. '); + break; + + case UPLOAD_ERR_NO_TMP_DIR: + case UPLOAD_ERR_CANT_WRITE: + case UPLOAD_ERR_EXTENSION: + return _('Internal error. You may not succeed in retrying. '); + break; + + default: + break; + } + return _('Unknown error. '); +} + +/** Remove link and it's file + * @param $link the link's name (hash) + */ + +function +jirafeau_delete ($link) +{ + if (!file_exists ( VAR_LINKS . $link)) + return; + + $content = file (VAR_LINKS . $link); + $md5 = trim ($content[5]); + unlink (VAR_LINKS . $link); + + $counter = 1; + if (file_exists ( VAR_FILES . $md5. '_count')) + { + $content = file ( VAR_FILES . $md5. '_count'); + $counter = trim ($content[0]); + } + $counter--; + + if ($counter >= 1) + { + $handle = fopen ( VAR_FILES . $md5. '_count', 'w'); + fwrite ($handle, $counter); + fclose ($handle); + } + + if ($counter == 0 && file_exists ( VAR_FILES . $md5)) + { + unlink ( VAR_FILES . $md5); + unlink ( VAR_FILES . $md5. '_count'); + } } /** - * gets a string explaining the error - * @param $code the error code - * @returns a string explaining the error + * Delete a file and it's links. */ -function jirafeau_upload_errstr($code) { - switch($code) { - case UPLOAD_ERR_INI_SIZE: - case UPLOAD_ERR_FORM_SIZE: - return _('Your file exceeds the maximum authorized file size.'); - break; - - case UPLOAD_ERR_PARTIAL: - case UPLOAD_ERR_NO_FILE: - return _('Your file was not uploaded correctly. You may succeed in retrying.'); - break; - - case UPLOAD_ERR_NO_TMP_DIR: - case UPLOAD_ERR_CANT_WRITE: - case UPLOAD_ERR_EXTENSION: - return _('Internal error. You may not succeed in retrying.'); - break; - - default: - break; - } - return _('Unknown error.'); +function +jirafeau_delete_file ($md5) +{ + $count = 0; + $links_dir = scandir (VAR_LINKS); + + foreach ($links_dir as $link) + { + if (strcmp ($link, '.') == 0 || strcmp ($link, '..') == 0) + continue; + /* Read link informations. */ + $l = jirafeau_get_link ($link); + if ($l['md5'] == $md5) + { + $count++; + jirafeau_delete ($link); + } + } + + if (file_exists (VAR_FILES . $md5 . '_count')) + unlink (VAR_FILES . $md5. '_count'); + if (file_exists (VAR_FILES . $md5)) + unlink (VAR_FILES . $md5); + + return $count; } /** @@ -111,79 +162,110 @@ function jirafeau_upload_errstr($code) { * @param $key if not empty, protect the file with this key * @param $time the time of validity of the file * @param $cfg the current configuration + * @param $ip uploader's ip * @returns an array containing some information * 'error' => information on possible errors * 'link' => the link name of the uploaded file + * 'delete_link' => the link code to delete file */ -function jirafeau_upload($file, $one_time_download, $key, $time, $cfg) { - if(empty($file['tmp_name']) || !is_uploaded_file($file['tmp_name'])) { - return(array('error' => array('has_error' => true, 'why' => jirafeau_upload_errstr($file['error'])), 'link' => '')); - } - - /* array representing no error */ - $noerr = array('has_error' => false, 'why' => ''); - - /* file informations */ - $md5 = md5_file($file['tmp_name']); - $name = trim($file['name']); - $mime_type = $file['type']; - $size = $file['size']; - - /* does file already exist ? */ - $rc = false; - if(file_exists(VAR_FILES . $md5)) { - $rc = unlink($file['tmp_name']); - } - elseif(move_uploaded_file($file['tmp_name'], VAR_FILES . $md5)) { - $rc = true; - } - if(!$rc) - { - return(array( - 'error' => array( - 'has_error' => true, - 'why' => _('Internal error during file creation.')), - 'link' => '') - ); - } - - /* increment or create count file */ - $counter=0; - if(file_exists(VAR_FILES . $md5 . '_count')) { - $content = file(VAR_FILES . $md5 . '_count'); - $counter = trim($content[0]); - } - $counter++; - $handle = fopen(VAR_FILES . $md5 . '_count', 'w'); - fwrite($handle, $counter); - fclose($handle); - - /* create link file */ - $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 . $key . NL . $time . NL . $md5 . NL . ($one_time_download ? 'O' : 'R') . NL . date('U') . NL); - fclose($handle); - $md5_link = md5_file($link_tmp_name); - if(!rename($link_tmp_name, VAR_LINKS . $md5_link)) { - if ($counter > 1) { - $counter--; - $handle = fopen(VAR_FILES . $md5 . '_count', 'w'); - fwrite($handle, $counter); - fclose($handle); - } - else { - unlink($link_tmp_name); - unlink(VAR_FILE . $md5 . '_count'); - unlink(VAR_FILE . $md5); - } - return(array( - 'error' => array( - 'has_error' => true, - 'why' => _('Internal error during file creation.')), - 'link' => '') - ); - } - return(array('error' => $noerr, 'link' => $md5_link)); +function +jirafeau_upload ($file, $one_time_download, $key, $time, $cfg, $ip) +{ + if (empty ($file['tmp_name']) || !is_uploaded_file ($file['tmp_name'])) + { + return (array( + 'error' => + array ('has_error' => true, + 'why' => jirafeau_upload_errstr ($file['error'])), + 'link' => '', + 'delete_link' => '')); + } + + /* array representing no error */ + $noerr = array ('has_error' => false, 'why' => ''); + + /* file informations */ + $md5 = md5_file ($file['tmp_name']); + $name = trim ($file['name']); + $mime_type = $file['type']; + $size = $file['size']; + + /* does file already exist ? */ + $rc = false; + if (file_exists ( VAR_FILES . $md5)) + { + $rc = unlink ($file['tmp_name']); + } + elseif (move_uploaded_file ($file['tmp_name'], VAR_FILES . $md5)) + { + $rc = true; + } + if (!$rc) + { + return (array( + 'error' => + array ('has_error' => true, + 'why' => _('Internal error during file creation. ')), + 'link' =>'', + 'delete_link' => '')); + } + + /* increment or create count file */ + $counter = 0; + if (file_exists (VAR_FILES . $md5 . '_count')) + { + $content = file ( VAR_FILES . $md5. '_count'); + $counter = trim ($content[0]); + } + $counter++; + $handle = fopen ( VAR_FILES . $md5. '_count', 'w'); + fwrite ($handle, $counter); + fclose ($handle); + + /* Create delete code. */ + $delete_link_code = 0; + for ($i = 0; $i < 8; $i++) + $delete_link_code .= dechex (rand (0, 16)); + + /* md5 password or empty */ + $password = ''; + if (!empty ($key)) + $password = md5 ($key); + + /* create link file */ + $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. + $delete_link_code . NL); + fclose ($handle); + $md5_link = md5_file ($link_tmp_name); + if (!rename ($link_tmp_name, VAR_LINKS . $md5_link)) + { + unlink ($link_tmp_name); + $counter--; + if ($counter >= 1) + { + $handle = fopen ( VAR_FILES . $md5. '_count', 'w'); + fwrite ($handle, $counter); + fclose ($handle); + } + else + { + unlink ( VAR_FILES . $md5. '_count'); + unlink ( VAR_FILES . $md5); + } + return (array( + 'error' => + array ('has_error' => true, + 'why' => _('Internal error during file creation. ')), + 'link' =>'', + 'delete_link' => '')); + } + return (array ('error' => $noerr, + 'link' => $md5_link, + 'delete_link' => $delete_link_code)); } /** @@ -191,14 +273,17 @@ function jirafeau_upload($file, $one_time_download, $key, $time, $cfg) { * @param $mime the mime type * @returns a boolean telling if a mime type is viewable */ -function jirafeau_is_viewable($mime) { - if(!empty($mime)) { - // actually, verify if mime-type is an image or a text - $viewable = array('image', 'text'); - $decomposed = explode('/', $mime); - return in_array($decomposed[0], $viewable); - } - return false; +function +jirafeau_is_viewable ($mime) +{ + if (!empty ($mime)) + { + /* Actually, verify if mime-type is an image or a text. */ + $viewable = array ('image', 'text'); + $decomposed = explode ('/', $mime); + return in_array ($decomposed[0], $viewable); + } + return false; } @@ -211,16 +296,20 @@ $error_list = array (); * @param $title the error's title * @param $description is a human-friendly description of the problem. */ -function add_error ($title, $description) { +function +add_error ($title, $description) +{ global $error_list; - $error_list[] = '

' . $title . '
' . $description . '

'; + $error_list[] = '

' . $title. '
' . $description. '

'; } /** * Informs whether any error has been registered yet. * @return true if there are errors. */ -function has_error () { +function +has_error () +{ global $error_list; return !empty ($error_list); } @@ -228,15 +317,152 @@ function has_error () { /** * Displays all the errors. */ -function show_errors () { - if (has_error ()) { +function +show_errors () +{ + if (has_error ()) + { global $error_list; echo '
'; - foreach ($error_list as $error) { + foreach ($error_list as $error) + { echo $error; } echo '
'; } } +/** + * Read link informations + * @return array containing informations. + */ +function +jirafeau_get_link ($hash) +{ + $out = array (); + $link = VAR_LINKS . $hash; + + if (!file_exists ($link)) + return $out; + + $c = file ($link); + $out['file_name'] = trim ($c[0]); + $out['mime_type'] = trim ($c[1]); + $out['file_size'] = trim ($c[2]); + $out['key'] = trim ($c[3], NL); + $out['time'] = trim ($c[4]); + $out['md5'] = trim ($c[5]); + $out['onetime'] = trim ($c[6]); + $out['upload_date'] = trim ($c[7]); + $out['ip'] = trim ($c[8]); + $out['link_code'] = trim ($c[9]); + + return $out; +} + +function +jirafeau_human_size ($octets) +{ + $u = array ('B', 'KB', 'MB', 'GB', 'TB'); + $o = max ($octets, 0); + $p = min (floor (($o ? log ($o) : 0) / log (1024)), count ($u) - 1); + $o /= pow (1024, $p); + return round ($o, 1) . $u[$p]; +} + +/** + * List files in admin interface. + */ +function +jirafeau_admin_list ($name, $file_hash, $link_hash) +{ + $links_dir = scandir (VAR_LINKS); + echo '
'; + if (!empty ($name)) + echo $name . ' '; + if (!empty ($file_hash)) + echo $file_hash . ' '; + if (!empty ($link_hash)) + echo $link_hash . ' '; + if (empty ($name) && empty ($file_hash) && empty ($link_hash)) + echo _('List all files'); + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + foreach ($links_dir as $link) + { + if (strcmp ($link, '.') == 0 || strcmp ($link, '..') == 0) + continue; + /* Read link informations. */ + $l = jirafeau_get_link ($link); + + /* Filter. */ + if (!empty ($name) && $name != $l['file_name']) + continue; + if (!empty ($file_hash) && $file_hash != $l['md5']) + continue; + if (!empty ($link_hash) && $link_hash != $link) + continue; + + /* Print link informations. */ + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + } + echo '
' . _('Filename') . '' . _('Type') . '' . _('Size') . '' . _('Expire') . '' . _('Onetime') . '' . _('Upload date') . '' . _('Origin') . '' . _('Action') . '
' . $l['file_name'] . '' . $l['mime_type'] . '' . jirafeau_human_size ($l['file_size']) . '' . ($l['time'] == -1 ? '' : strftime ('%c', $l['time'])) . + '' . $l['onetime'] . '' . strftime ('%c', $l['upload_date']) . '' . $l['ip'] . '' . + '
' . + '' . + '' . + '' . + '
' . + '
' . + '' . + '' . + '' . + '
' . + '
'; +} + +/** + * Clean expired files. + * @return number of cleaned files. + */ +function +jirafeau_admin_clean () +{ + $c = 0; + $links_dir = scandir (VAR_LINKS); + + foreach ($links_dir as $link) + { + if (strcmp ($link, '.') == 0 || strcmp ($link, '..') == 0) + continue; + /* Read link informations. */ + $l = jirafeau_get_link ($link); + if ($l['time'] > 0 && $l['time'] < time ()) + { + echo 'HAAAA' . $l['time'] . '-->' . time (); + jirafeau_delete ($link); + $c++; + } + } + return $c; +} ?>