X-Git-Url: https://jasonwoof.com/gitweb/?a=blobdiff_plain;f=fdb.php;h=a9bb59fa3c88336e2683ce2851865353bb9e588f;hb=23ac7dc3675119a6f7a3876837bd6c656b0d2cce;hp=4e289727f8e7cf3dd6a5e5e217ca4943fc6623fb;hpb=7b70792307cbb5ff5b4442c366e1aa0498e34e9c;p=wfpl.git diff --git a/fdb.php b/fdb.php index 4e28972..a9bb59f 100644 --- a/fdb.php +++ b/fdb.php @@ -23,7 +23,8 @@ # very simple database. # Keys are truncated to 32 bytes, made lowercase, and all characters that are -# not alpha/numeric are replaced with underscores. +# not alpha/numeric are replaced with underscores. Periods and hyphens are only +# replaced if they are at the begining. # Data can be either a string or an array. @@ -31,6 +32,9 @@ # fdb_set_dir() passing the path to that directory. +require_once('code/wfpl/file.php'); +require_once('code/wfpl/binary.php'); + # call this to set what directory is used to store the files function fdb_set_dir($dir) { $GLOBALS['fdb_dir'] = $dir; @@ -59,13 +63,19 @@ function int_at($string, $index) { } # remove the first 4 bytes of the string, and return them as an int -function pop_int($&string) { - $int = from_raw_int(substring($string, 0 4)); +function pop_int(&$string) { + $int = from_raw_int(substr($string, 0, 4)); $string = substr($string, 4); return $int; } +function fdb_fix_key($key) { + $key = ereg_replace('[^a-z0-9.-]', '_', strtolower($key)); + $key = ereg_replace('^[-.]', '_', strtolower($key)); + return substr($key, 0, 32); +} + function fdb_get_raw($key) { $key = fdb_fix_key($key); @@ -80,14 +90,14 @@ function fdb_set_raw($key, $data) { # like fdb_get() except it returns an array even when there's just one element function fdb_geta($key) { $key = fdb_fix_key($key); - $data = fd_get_raw($key); + $data = fdb_get_raw($key); if($data === false) { return false; } $header_count = pop_int($data); $out = array(); while($header_count--) { - $size = int_at($data); + $size = pop_int($data); $out[] = substr($data, 0, $size); $data = substr($data, $size); } @@ -104,6 +114,9 @@ function fdb_geta($key) { # array in this case too) function fdb_get($key) { $ret = fdb_geta($key); + if($ret == false) { + return false; + } if(count($ret) == 1) { return $ret[0]; } else { @@ -112,7 +125,7 @@ function fdb_get($key) { } # data can be a string or array -function fdb_put($key, $data) { +function fdb_set($key, $data) { $key = fdb_fix_key($key); if(!is_array($data)) { $data = array($data); @@ -122,7 +135,16 @@ function fdb_put($key, $data) { $out .= to_raw_int(strlen($dat)); $out .= $dat; } - return $out; + fdb_set_raw($key, $out); +} + +function fdb_delete($key) { + $key = fdb_fix_key($key); + $path = fdb_get_dir() . "/$key"; + if(file_exists($path)) { + return unlink($path); + } + return false; } ?>