func.inc.php

Discuz功能源码（开源）

<?php

/*
	[Discuz!] (C)2001-2009 Comsenz Inc.
	This is NOT a freeware, use is subject to license terms

	$Id: func.inc.php 16698 2008-11-14 07:58:56Z cnteacher $
*/

if(!defined('IN_COMSENZ')) {
	exit('Access Denied');
}

function show_msg($error_no, $error_msg = 'ok', $success = 1, $quit = TRUE) {
	if(VIEW_OFF) {
		$error_code = $success ? 0 : constant(strtoupper($error_no));
		$error_msg = empty($error_msg) ? $error_no : $error_msg;
		$error_msg = str_replace('"', '\"', $error_msg);
		$str = "<root>\n";
		$str .= "\t<error errorCode=\"$error_code\" errorMessage=\"$error_msg\" />\n";
		$str .= "</root>";
		echo $str;
		exit;
	} else {
		show_header();
		global $step;

		$title = lang($error_no);
		$comment = lang($error_no.'_comment', false);
		$errormsg = '';

		if($error_msg) {
			if(!empty($error_msg)) {
				foreach ((array)$error_msg as $k => $v) {
					if(is_numeric($k)) {
						$comment .= "<li><em class=\"red\">".lang($v)."</em></li>";
					}
				}
			}
		}

		if($step > 0) {
			echo "<div class=\"desc\"><b>$title</b><ul>$comment</ul>";
		} else {
			echo "</div><div class=\"main\" style=\"margin-top: -123px;\"><b>$title</b><ul style=\"line-height: 200%; margin-left: 30px;\">$comment</ul>";
		}

		if($quit) {
			echo '<br /><span class="red">'.lang('error_quit_msg').'</span><br /><br /><br />';
		}

		echo '<input type="button" onclick="history.back()" value="'.lang('click_to_back').'" /><br /><br /><br />';

		echo '</div>';

		$quit && show_footer();
	}
}

function check_db($dbhost, $dbuser, $dbpw, $dbname, $tablepre) {
	if(!function_exists('mysql_connect')) {
		show_msg('undefine_func', 'mysql_connect', 0);
	}
	if(!@mysql_connect($dbhost, $dbuser, $dbpw)) {
		$errno = mysql_errno();
		$error = mysql_error();
		if($errno == 1045) {
			show_msg('database_errno_1045', $error, 0);
		} elseif($errno == 2003) {
			show_msg('database_errno_2003', $error, 0);
		} else {
			show_msg('database_connect_error', $error, 0);
		}
	} else {
		if($query = mysql_query("SHOW TABLES FROM $dbname")) {
			while($row = mysql_fetch_row($query)) {
				if(preg_match("/^$tablepre/", $row[0])) {
					return false;
				}
			}
		}
	}
	return true;
}

function dirfile_check(&$dirfile_items) {
	foreach($dirfile_items as $key => $item) {
		$item_path = $item['path'];
		if($item['type'] == 'dir') {
			if(!dir_writeable(ROOT_PATH.$item_path)) {
				if(is_dir(ROOT_PATH.$item_path)) {
					$dirfile_items[$key]['status'] = 0;
					$dirfile_items[$key]['current'] = '+r';
				} else {
					$dirfile_items[$key]['status'] = -1;
					$dirfile_items[$key]['current'] = 'nodir';
				}
			} else {
				$dirfile_items[$key]['status'] = 1;
				$dirfile_items[$key]['current'] = '+r+w';
			}
		} else {
			if(file_exists(ROOT_PATH.$item_path)) {
				if(is_writable(ROOT_PATH.$item_path)) {
					$dirfile_items[$key]['status'] = 1;
					$dirfile_items[$key]['current'] = '+r+w';
				} else {
					$dirfile_items[$key]['status'] = 0;
					$dirfile_items[$key]['current'] = '+r';
				}
			} else {
				if(dir_writeable(dirname($item_path))) {
					$dirfile_items[$key]['status'] = 1;
					$dirfile_items[$key]['current'] = '+r+w';
				} else {
					$dirfile_items[$key]['status'] = -1;
					$dirfile_items[$key]['current'] = 'nofile';
				}
			}
		}
	}
}

function env_check(&$env_items) {
	foreach($env_items as $key => $item) {
		if($key == 'php') {
			$env_items[$key]['current'] = PHP_VERSION;
		} elseif($key == 'attachmentupload') {
			$env_items[$key]['current'] = @ini_get('file_uploads') ? ini_get('upload_max_filesize') : 'unknow';
		} elseif($key == 'gdversion') {
			$tmp = function_exists('gd_info') ? gd_info() : array();
			$env_items[$key]['current'] = empty($tmp['GD Version']) ? 'noext' : $tmp['GD Version'];
			unset($tmp);
		} elseif($key == 'diskspace') {
			if(function_exists('disk_free_space')) {
				$env_items[$key]['current'] = floor(disk_free_space(ROOT_PATH) / (1024*1024)).'M';
			} else {
				$env_items[$key]['current'] = 'unknow';
			}
		} elseif(isset($item['c'])) {
			$env_items[$key]['current'] = constant($item['c']);
		}

		$env_items[$key]['status'] = 1;
		if($item['r'] != 'notset' && strcmp($env_items[$key]['current'], $item['r']) < 0) {
			$env_items[$key]['status'] = 0;
		}
	}
}

function function_check(&$func_items) {
	foreach($func_items as $item) {
		function_exists($item) or show_msg('undefine_func', $item, 0);
	}
}

function show_env_result(&$env_items, &$dirfile_items, &$func_items) {

	$env_str = $file_str = $dir_str = $func_str = '';
	$error_code = 0;

	foreach($env_items as $key => $item) {
		if($key == 'php' && strcmp($item['current'], $item['r']) < 0) {
			show_msg('php_version_too_low', $item['current'], 0);
		}
		$status = 1;
		if($item['r'] != 'notset') {
			if(intval($item['current']) && intval($item['r'])) {
				if(intval($item['current']) < intval($item['r'])) {
					$status = 0;
					$error_code = ENV_CHECK_ERROR;
				}
			} else {
				if(strcmp($item['current'], $item['r']) < 0) {
					$status = 0;
					$error_code = ENV_CHECK_ERROR;
				}
			}
		}
		if(VIEW_OFF) {
			$env_str .= "\t\t<runCondition name=\"$key\" status=\"$status\" Require=\"$item[r]\" Best=\"$item[b]\" Current=\"$item[current]\"/>\n";
		} else {
			$env_str .= "<tr>\n";
			$env_str .= "<td>".lang($key)."</td>\n";
			$env_str .= "<td class=\"padleft\">".lang($item['r'])."</td>\n";
			$env_str .= "<td class=\"padleft\">".lang($item['b'])."</td>\n";
			$env_str .= ($status ? "<td class=\"w pdleft1\">" : "<td class=\"nw pdleft1\">").$item['current']."</td>\n";
			$env_str .= "</tr>\n";
		}
	}

	foreach($dirfile_items as $key => $item) {
		$tagname = $item['type'] == 'file' ? 'File' : 'Dir';
		$variable = $item['type'].'_str';

		if(VIEW_OFF) {
			if($item['status'] == 0) {
				$error_code = ENV_CHECK_ERROR;
			}
			$$variable .= "\t\t\t<File name=\"$item[path]\" status=\"$item[status]\" requirePermisson=\"+r+w\" currentPermisson=\"$item[current]\" />\n";
		} else {
			$$variable .= "<tr>\n";
			$$variable .= "<td>$item[path]</td><td class=\"w pdleft1\">".lang('writeable')."</td>\n";
			if($item['status']) {
				$$variable .= "<td class=\"w pdleft1\">".lang('writeable')."</td>\n";
			} else {
				$$variable .= "<td class=\"nw pdleft1\">".lang('unwriteable')."</td>\n";
			}
			$$variable .= "</tr>\n";
		}
	}

	if(VIEW_OFF) {

		$str = "<root>\n";
		$str .= "\t<runConditions>\n";
		$str .= $env_str;
		$str .= "\t</runConditions>\n";
		$str .= "\t<FileDirs>\n";
		$str .= "\t\t<Dirs>\n";
		$str .= $dir_str;
		$str .= "\t\t</Dirs>\n";
		$str .= "\t\t<Files>\n";
		$str .= $file_str;
		$str .= "\t\t</Files>\n";
		$str .= "\t</FileDirs>\n";
		$str .= "\t<error errorCode=\"$error_code\" errorMessage=\"\" />\n";
		$str .= "</root>";
		echo $str;
		exit;

	} else {

		show_header();

		echo "<h2 class=\"title\">".lang('env_check')."</h2>\n";
		echo "<table class=\"tb\" style=\"margin:20px 0 20px 55px;\">\n";
		echo "<tr>\n";
		echo "\t<th>".lang('project')."</th>\n";
		echo "\t<th class=\"padleft\">".lang('ucenter_required')."</th>\n";
		echo "\t<th class=\"padleft\">".lang('ucenter_best')."</th>\n";
		echo "\t<th class=\"padleft\">".lang('curr_server')."</th>\n";
		echo "</tr>\n";
		echo $env_str;
		echo "</table>\n";

		echo "<h2 class=\"title\">".lang('priv_check')."</h2>\n";
		echo "<table class=\"tb\" style=\"margin:20px 0 20px 55px;width:90%;\">\n";
		echo "\t<tr>\n";
		echo "\t<th>".lang('step1_file')."</th>\n";
		echo "\t<th class=\"padleft\">".lang('step1_need_status')."</th>\n";
		echo "\t<th class=\"padleft\">".lang('step1_status')."</th>\n";
		echo "</tr>\n";
		echo $file_str;
		echo $dir_str;
		echo "</table>\n";

		foreach($func_items as $item) {
			$status = function_exists($item);
			$func_str .= "<tr>\n";
			$func_str .= "<td>$item()</td>\n";
			if($status) {
				$func_str .= "<td class=\"w pdleft1\">".lang('supportted')."</td>\n";
				$func_str .= "<td class=\"padleft\">".lang('none')."</td>\n";
			} else {
				$error_code = ENV_CHECK_ERROR;
				$func_str .= "<td class=\"nw pdleft1\">".lang('unsupportted')."</td>\n";
				$func_str .= "<td><font color=\"red\">".lang('advice_'.$item)."</font></td>\n";
			}
		}
		echo "<h2 class=\"title\">".lang('func_depend')."</h2>\n";
		echo "<table class=\"tb\" style=\"margin:20px 0 20px 55px;width:90%;\">\n";
		echo "<tr>\n";
		echo "\t<th>".lang('func_name')."</th>\n";
		echo "\t<th class=\"padleft\">".lang('check_result')."</th>\n";
		echo "\t<th class=\"padleft\">".lang('suggestion')."</th>\n";
		echo "</tr>\n";
		echo $func_str;
		echo "</table>\n";

		show_next_step(2, $error_code);

		show_footer();

	}

}

function show_next_step($step, $error_code) {
	global $uchidden;
	echo "<form action=\"index.php\" method=\"post\">\n";
	echo "<input type=\"hidden\" name=\"step\" value=\"$step\" />";
	if(isset($GLOBALS['hidden'])) {
		echo $GLOBALS['hidden'];
	}
	echo "<input type=\"hidden\" name=\"uchidden\" value=\"$uchidden\" />";
	if($error_code == 0) {
		$nextstep = "<input type=\"button\" onclick=\"history.back();\" value=\"".lang('old_step')."\"><input type=\"submit\" value=\"".lang('new_step')."\">\n";
	} else {
		$nextstep = "<input type=\"button\" disabled=\"disabled\" value=\"".lang('not_continue')."\">\n";
	}
	echo "<div class=\"btnbox marginbot\">".$nextstep."</div>\n";
	echo "</form>\n";
}

function show_form(&$form_items, $error_msg) {

	global $step, $uchidden;

	if(empty($form_items) || !is_array($form_items)) {
		return;
	}

	show_header();
	show_setting('start');
	show_setting('hidden', 'step', $step);
	$is_first = 1;
	if(!empty($uchidden)) {
		$uc_info_transfer = unserialize(urldecode($uchidden));
	}
	foreach($form_items as $key => $items) {
		global ${'error_'.$key};
		if($is_first == 0) {
			echo '</table>';
		}

		if(!${'error_'.$key}) {
			show_tips('tips_'.$key);
		} else {
			show_error('tips_admin_config', ${'error_'.$key});
		}

		echo '<table class="tb2">';

		foreach($items as $k => $v) {
			global $$k;
			if(!empty($error_msg)) {
				$value = isset($_POST[$key][$k]) ? $_POST[$key][$k] : '';
			} else {
				if(isset($v['value']) && is_array($v['value'])) {
					if($v['value']['type'] == 'constant') {
						$value = defined($v['value']['var']) ? constant($v['value']['var']) : '';
					} else {
						$value = $GLOBALS[$v['value']['var']];
					}
				} else {
					$value = '';