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<?php |
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/* This file is part of BBClone (A PHP based Web Counter on Steroids) |
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* |
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* CVS FILE $Id: io.php,v 1.80 2011/12/30 23:03:47 joku Exp $ |
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* |
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* Copyright (C) 2001-2012, the BBClone Team (see doc/authors.txt for details) |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* See doc/copying.txt for details |
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*/ |
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|
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/////////////////////// |
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// IO (Input/Output) // |
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/////////////////////// |
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|
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// remove unwanted stuff from user input |
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function bbc_clean($input, $sep = 0) { |
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$sp = strpos($input, $sep); |
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// only look for separator if really needed |
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$input = (!empty($sep) && ($sp !== false)) ? substr($input, 0, $sp) : $input; |
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$input = strip_tags(str_replace("\\", "/", stripslashes($input))); |
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$input = trim(str_replace("$", "$", htmlspecialchars($input, ENT_QUOTES))); |
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|
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// Limit the maximum length to 512 chars |
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return substr($input, 0, 512); |
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} |
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|
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//initialize the bbc_marker class |
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function bbc_exec_marker() { |
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$bbc_marker = new bbc_marker; |
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|
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if ($bbc_marker->ignored === true) return bbc_msg(false, "i"); |
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else $msg = $bbc_marker->bbc_write_entry(); |
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|
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switch ($msg[1]) { |
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case "o": |
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if (!defined("_OK")) define("_OK", 1); |
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return bbc_msg($msg[0], "o"); |
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case "l": |
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return bbc_msg($msg[0], "l"); |
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case "w": |
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return bbc_msg($msg[0], "w"); |
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default: |
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return bbc_msg($msg[0]); |
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} |
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} |
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|
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// kill stats if desired |
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function bbc_kill_stats() { |
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global $BBC_ACCESS_FILE, $BBC_CACHE_PATH, $BBC_COUNTER_FILES, $BBC_COUNTER_PREFIX, $BBC_COUNTER_SUFFIX, |
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$BBC_DEBUG, $BBC_LAST_FILE; |
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|
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for ($i = 0; $i < $BBC_COUNTER_FILES; $i++) { |
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$file = $BBC_CACHE_PATH.$BBC_COUNTER_PREFIX.$i.$BBC_COUNTER_SUFFIX; |
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|
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fclose(fopen($file, "wb")); |
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} |
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|
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fclose(fopen($BBC_ACCESS_FILE, "wb")); |
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fclose(fopen($BBC_LAST_FILE, "wb")); |
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} |
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|
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// Parse all counter files of var/ and return an array of N rows, |
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// with N as amount of new connections, sorted in increasing time of connection. |
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// The counters files are emptied afterwards. |
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function bbc_counter_to_array() { |
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global $BBC_CACHE_PATH, $BBC_COUNTER_PREFIX, $BBC_COUNTER_SUFFIX, $BBC_SEP, $BBC_COUNTER_COLUMNS, |
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$BBC_COUNTER_COLUMN_NAMES, $BBC_COUNTER_FILES, $BBC_DEBUG; |
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|
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for ($i = 0, $nb_new_entry = 0; $i < $BBC_COUNTER_FILES; $i++) { |
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$file = $BBC_CACHE_PATH.$BBC_COUNTER_PREFIX.$i.$BBC_COUNTER_SUFFIX; |
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|
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if (!is_readable($file)) { |
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!empty($BBC_DEBUG) ? print(bbc_msg($file)) : ""; |
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$no_acc = 1; |
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continue; |
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} |
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|
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$fp = fopen($file, "rb"); |
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|
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while (($line = fgetcsv($fp, 4096, $BBC_SEP)) !== false) { |
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for ($j = 0, $max = count($line); $j < $max; $j++) $line[$j] = trim($line[$j]); |
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// Avoiding ill formed counter file |
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if ((empty($line[0])) || (!preg_match(":^[0-9]+$:",$line[0]))) continue; |
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|
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for ($k = 0; ($k < $BBC_COUNTER_COLUMNS); $k++) { |
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$counter_array[$nb_new_entry][($BBC_COUNTER_COLUMN_NAMES[$k])] = $line[$k]; |
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} |
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$nb_new_entry++; |
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} |
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fclose($fp); |
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|
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// reset the counter files |
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if (is_writable($file)) fclose(fopen($file, "wb")); |
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else (empty($no_acc) && !empty($BBC_DEBUG)) ? print(bbc_msg($file, "w")) : ""; |
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} |
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if (!empty($counter_array)) usort($counter_array, "bbc_sort_time_sc"); |
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return (empty($counter_array) ? array() : $counter_array); |
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} |
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|
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function bbc_array_to_str(&$tab) { |
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// This function return a string description of an array. |
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// Format (_ == space): |
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// |_array( |
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// |__key1 => scal1, key2 => scal2, ... |
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// |__key3 => |
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// |___array( |
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// |____key1 => scal1, ... |
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// |___), |
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// |__key4 => scal4, ... |
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// |_) |
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|
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static $indent = ""; |
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|
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$oldindent = $indent; |
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$indent .= " "; |
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$sep = ""; |
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|
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$str = $indent."array(\n"; |
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$last_is_array = false; |
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$k = 0; |
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|
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reset($tab); |
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|
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while (list($key, $val) = each($tab)) { |
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// The separator treatment |
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if (($last_is_array) || (is_array($val) && ($k !== 0))) { |
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$str .= $sep."\n"; |
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} |
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else $str .= $sep; |
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|
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// The key treatment |
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if (preg_match(":^[0-9]+$:", $key)) { |
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if ($key !== $k) { |
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$str .= (((is_array($val)) || ($k === 0) || ($last_is_array)) ? "$indent " : "") |
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."$key =>".((is_array($val)) ? "\n" : " "); |
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} |
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else $str .= ($k === 0) ? (is_array($val) ? "" : "$indent ") : ""; |
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} |
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else { |
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$str .= (((is_array($val)) || ($k === 0) || ($last_is_array)) ? "$indent " : "") |
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."\"$key\" =>".((is_array($val)) ? "\n" : " "); |
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} |
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|
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// The value treatment |
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$last_is_array = false; |
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if (is_array($val)) { |
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$str .= bbc_array_to_str($val); |
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$last_is_array = true; |
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$sep = ","; |
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} |
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else { |
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$str .= (preg_match(":^[0-9]+$:", $val) ? $val : "\"$val\""); |
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$sep = ", "; |
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} |
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$k++; |
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} |
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$str .= "\n$indent)"; |
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$indent = $oldindent; |
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return $str; |
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} |
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|
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function bbc_ftok($file) { |
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$stat = stat($file); |
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$dev = decbin($stat[0]); |
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$inode = decbin($stat[1]); |
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|
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foreach (array("dev", "inode") as $what) { |
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$lim = ($what == "inode") ? 16 : 8; |
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|
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if ($$what < $lim) $$what = str_pad($$what, $lim, 0); |
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elseif ($$what > $lim) $$what = substr($$what, -$lim); |
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else continue; |
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} |
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return bindec("1111000".$dev.$inode); |
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} |
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|
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// returns the lock id |
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function bbc_semlock($file) { |
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$id = sem_get(bbc_ftok($file), 1); |
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|
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sem_acquire($id); |
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return $id; |
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} |
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|
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// write data, returns file pointer on success else false |
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function bbc_begin_write($file, $data) { |
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$fp = defined("_BBC_DIO") ? dio_open($file, O_RDWR | O_APPEND) : fopen($file, "rb+"); |
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|
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if (defined("_BBC_DIO") && (dio_fcntl($fp, F_SETLK, 1) !== -1)) { |
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dio_seek($fp, 0); |
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dio_truncate($fp, 0); |
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dio_write($fp, $data); |
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return $fp; |
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} |
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elseif (defined("_BBC_SEM") ? ($id = bbc_semlock($file)) : flock($fp, LOCK_EX)) { |
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rewind($fp); |
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fwrite($fp, $data); |
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fflush($fp); |
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ftruncate($fp, ftell($fp)); |
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return (defined("_BBC_SEM") ? array($fp, $id) : $fp); |
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} |
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else { |
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defined("_BBC_DIO") ? dio_close($fp) : fclose($fp); |
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return false; |
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} |
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} |
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|
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// finish writing to a file |
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function bbc_end_write($fp) { |
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if (defined("_BBC_SEM") ? ((!is_array($fp)) || ($fp[0] === false)) : ($fp === false)) return false; |
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|
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if (defined("_BBC_DIO")) { |
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dio_fcntl($fp, F_SETLK, 0); |
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dio_close($fp); |
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} |
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else { |
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defined("_BBC_SEM") ? sem_release($fp[1]) : flock($fp, LOCK_UN); |
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fclose(defined("_BBC_SEM") ? $fp[0] : $fp); |
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} |
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return true; |
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} |
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?> |
