X-Git-Url: https://git.p6c8.net/jirafeau.git/blobdiff_plain/cbef2b93dfeb51484956c960d58af8c4557c25f5..8446aee16b869be5235e55068ffeb76b163dac79:/lib/functions.php diff --git a/lib/functions.php b/lib/functions.php index 48bdefd..97733d5 100644 --- a/lib/functions.php +++ b/lib/functions.php @@ -18,90 +18,215 @@ * along with this program. If not, see . */ +/** + * Transform a string in a path by seperating each letters by a '/'. + * @return path finishing with a '/' + */ +function +s2p ($s) +{ + $p = ''; + for ($i = 0; $i < strlen ($s); $i++) + $p .= $s{$i} . '/'; + return $p; +} + +function +jirafeau_human_size ($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]; +} + +function +jirafeau_clean_rm_link ($link) +{ + $p = s2p ("$link"); + if (file_exists (VAR_LINKS . $p . $link)) + unlink (VAR_LINKS . $p . $link); + $parse = VAR_LINKS . $p; + $scan = array(); + while (file_exists ($parse) + && ($scan = scandir ($parse)) + && count ($scan) == 2 // '.' and '..' folders => empty. + && basename ($parse) != basename (VAR_LINKS)) + { + rmdir ($parse); + $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1); + } +} + +function +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'); + $parse = VAR_FILES . $p; + $scan = array(); + while (file_exists ($parse) + && ($scan = scandir ($parse)) + && count ($scan) == 2 // '.' and '..' folders => empty. + && basename ($parse) != basename (VAR_FILES)) + { + rmdir ($parse); + $parse = substr ($parse, 0, strlen($parse) - strlen(basename ($parse)) - 1); + } +} + /** * 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 + * @returns the maximum upload size string */ -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 jirafeau_human_size( + 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 $name; - } +function +jirafeau_upload_errstr ($code) +{ + switch ($code) + { + case UPLOAD_ERR_INI_SIZE: + case UPLOAD_ERR_FORM_SIZE: + return t('Your file exceeds the maximum authorized file size. '); + break; + + case UPLOAD_ERR_PARTIAL: + case UPLOAD_ERR_NO_FILE: + return + t + ('Your file was not uploaded correctly. You may succeed in retrying. '); + break; - $dot = strpos($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)); + case UPLOAD_ERR_NO_TMP_DIR: + case UPLOAD_ERR_CANT_WRITE: + case UPLOAD_ERR_EXTENSION: + return t('Internal error. You may not succeed in retrying. '); + break; - return $new_name; + default: + break; + } + return t('Unknown error. '); +} + +/** Remove link and it's file + * @param $link the link's name (hash) + */ + +function +jirafeau_delete_link ($link) +{ + $l = jirafeau_get_link ($link); + if (!count ($l)) + return; + + jirafeau_clean_rm_link ($link); + + $md5 = $l['md5']; + $p = s2p ("$md5"); + + $counter = 1; + if (file_exists (VAR_FILES . $p . $md5. '_count')) + { + $content = file (VAR_FILES . $p . $md5. '_count'); + $counter = trim ($content[0]); + } + $counter--; + + if ($counter >= 1) + { + $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w'); + fwrite ($handle, $counter); + fclose ($handle); + } + + if ($counter == 0) + jirafeau_clean_rm_file ($md5); } /** - * 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; + /* Get all links files. */ + $stack = array (VAR_LINKS); + while (($d = array_shift ($stack)) && $d != NULL) + { + $dir = scandir ($d); + + foreach ($dir as $node) + { + if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 || + preg_match ('/\.tmp/i', "$node")) + continue; + + if (is_dir ($d . $node)) + { + /* Push new found directory. */ + $stack[] = $d . $node . '/'; + } + elseif (is_file ($d . $node)) + { + /* Read link informations. */ + $l = jirafeau_get_link (basename ($node)); + if (!count ($l)) + continue; + if ($l['md5'] == $md5) + { + $count++; + jirafeau_delete_link ($node); + } + } + } + } + jirafeau_clean_rm_file ($md5); + return $count; } /** @@ -110,81 +235,115 @@ function jirafeau_upload_errstr($code) { * @param $one_time_download is the file a one time download ? * @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, $ip) { - if(empty($file['tmp_name']) || !is_uploaded_file($file['tmp_name'])) { - return(array('error' => array('has_error' => true, 'why' => jirafeau_upload_errstr($file['error'])), 'link' => '')); - } - - /* 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 . $ip . NL); - fclose($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, $ip) +{ + if (empty ($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; + $p = s2p ("$md5"); + if (file_exists (VAR_FILES . $p . $md5)) + { + $rc = unlink ($file['tmp_name']); + } + elseif ((file_exists (VAR_FILES . $p) || @mkdir (VAR_FILES . $p, 0755, true)) + && move_uploaded_file ($file['tmp_name'], VAR_FILES . $p . $md5)) + { + $rc = true; + } + if (!$rc) + { + return (array( + 'error' => + array ('has_error' => true, + 'why' => t('Internal error during file creation.')), + 'link' =>'', + 'delete_link' => '')); + } + + /* increment or create count file */ + $counter = 0; + if (file_exists (VAR_FILES . $p . $md5 . '_count')) + { + $content = file (VAR_FILES . $p . $md5. '_count'); + $counter = trim ($content[0]); + } + $counter++; + $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w'); + fwrite ($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); + $l = s2p ("$md5_link"); + if (!@mkdir (VAR_LINKS . $l, 0755, true) || + !rename ($link_tmp_name, VAR_LINKS . $l . $md5_link)) + { + if (file_exists ($link_tmp_name)) + unlink ($link_tmp_name); + + $counter--; + if ($counter >= 1) + { + $handle = fopen (VAR_FILES . $p . $md5. '_count', 'w'); + fwrite ($handle, $counter); + fclose ($handle); + } + else + { + jirafeau_clean_rm_file ($md5_link); + } + return (array( + 'error' => + array ('has_error' => true, + 'why' => t('Internal error during file creation. ')), + 'link' =>'', + 'delete_link' => '')); + } + return (array ('error' => $noerr, + 'link' => $md5_link, + 'delete_link' => $delete_link_code)); } /** @@ -192,14 +351,17 @@ function jirafeau_upload($file, $one_time_download, $key, $time, $cfg, $ip) { * @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; } @@ -212,16 +374,20 @@ $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); } @@ -229,15 +395,183 @@ 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 (); + $link = VAR_LINKS . s2p ("$hash") . $hash; + + if (!file_exists ($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 $out; +} + +/** + * List files in admin interface. + */ +function +jirafeau_admin_list ($name, $file_hash, $link_hash) +{ + echo '
'; + if (!empty ($name)) + echo t('Filename') . ": $name "; + if (!empty ($file_hash)) + echo t('file') . ": $file_hash "; + if (!empty ($link_hash)) + echo t('link') . ": $link_hash "; + if (empty ($name) && empty ($file_hash) && empty ($link_hash)) + echo t('List all files'); + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + + /* Get all links files. */ + $stack = array (VAR_LINKS); + while (($d = array_shift ($stack)) && $d != NULL) + { + $dir = scandir ($d); + foreach ($dir as $node) + { + if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 || + preg_match ('/\.tmp/i', "$node")) + continue; + if (is_dir ($d . $node)) + { + /* Push new found directory. */ + $stack[] = $d . $node . '/'; + } + elseif (is_file ($d . $node)) + { + /* Read link informations. */ + $l = jirafeau_get_link ($node); + if (!count ($l)) + continue; + + /* Filter. */ + if (!empty ($name) && !preg_match ("/$name/i", $l['file_name'])) + continue; + if (!empty ($file_hash) && $file_hash != $l['md5']) + continue; + if (!empty ($link_hash) && $link_hash != $node) + continue; + /* Print link informations. */ + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + echo ''; + } + } + } + echo '
' . t('Filename') . '' . t('Type') . '' . t('Size') . '' . t('Expire') . '' . t('Onetime') . '' . t('Upload date') . '' . t('Origin') . '' . t('Action') . '
' . + '
' . + '' . + '' . + '' . + '
'; + echo '		' . $l['mime_type'] . '' . jirafeau_human_size ($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 () +{ + $count = 0; + /* Get all links files. */ + $stack = array (VAR_LINKS); + while (($d = array_shift ($stack)) && $d != NULL) + { + $dir = scandir ($d); + + foreach ($dir as $node) + { + if (strcmp ($node, '.') == 0 || strcmp ($node, '..') == 0 || + preg_match ('/\.tmp/i', "$node")) + continue; + + if (is_dir ($d . $node)) + { + /* Push new found directory. */ + $stack[] = $d . $node . '/'; + } + elseif (is_file ($d . $node)) + { + /* Read link informations. */ + $l = jirafeau_get_link (basename ($node)); + if (!count ($l)) + continue; + $p = s2p ($l['md5']); + if ($l['time'] > 0 && $l['time'] < time () || // expired + !file_exists (VAR_FILES . $p . $l['md5']) || // invalid + !file_exists (VAR_FILES . $p . $l['md5'] . '_count')) // invalid + { + jirafeau_delete_link ($node); + $count++; + } + } + } + } + return $count; +} ?>