www2-main.js

KBS的BBS源码

/**
 * Part of the KBS BBS Code
 * Copyright (c) 2005-2008 KBS Development Team. (http://dev.kcn.cn/)
 * Source file is subject to the pending KBS License.
 *
 * You may use and/or modify the source code only for pure personal study
 * purpose (e.g. using it in a public website is not acceptable), unless
 * you get explicit permission by the KBS Development Team.
 */

/* TODO: obfuscate this file... */
var agt = navigator.userAgent.toLowerCase();
var gOp = (agt.indexOf("opera") != -1);
var gIE = ((agt.indexOf("msie") != -1) && !gOp);
var gFx = (agt.indexOf("gecko") != -1);
var gKon = (agt.indexOf("konqueror") != -1) && (agt.indexOf("safari") == -1);
var gIE5 = false;
if (gIE) {
	gIE5 = (parseFloat( agt.substring( agt.indexOf('msie ') + 5 ) ) < 6);
}
var kbsrc = null; //namespace in this window
var www2dev = (typeof gwww2dev != "undefined");
var havejsmath = (typeof gjsmath != "undefined");
var gIE6Fx = ((gIE && !gIE5) || gFx || www2dev);

if (!Array.prototype.push) {
	Array.prototype.push = function() {
		var s = this.length;
		for (var i = 0; i < arguments.length; i++)
			this[s + i] = arguments[i];
		return this.length;
	};
}

function StringBuffer() { this.buffer = []; }
StringBuffer.prototype = {
	append: function(string) { this.buffer.push(string); },
	toString: function() { return this.buffer.join(""); }
};

function w(s) { if (document&&document.write) document.write(s); }


var bootFn = Array();
function addBootFn(fn) {
	bootFn.push(fn);
}


function htmlize(s,html_attrib) {
	s = s.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
	if (html_attrib) {
		s = s.replace(/"/g, "&quot;").replace(/'/g, "&#39;");
	} else {
		s = s.replace(/\x20\x20/g, " &nbsp;");
	}
	return s;
}


var att = null, strPrint = "", strArticle = "", divArtCon = null;
function attWriter(bid, id, ftype, num, cacheable) {
	this.bid = bid;
	this.id = id;
	this.ftype = ftype;
	this.num = num;
	this.cacheable = cacheable;
}
function prints(s) {
	strPrint += s;
	s = s.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
	s = s.replace(/\r[\[\d;]+[a-z]/gi, "");
	s = s.replace(/\x20\x20/g, " &nbsp;").replace(/\n /g, "\n&nbsp;");
	s = s.replace(/\n(: [^\n]*)/g, "<br/><span class=\"f006\">$1</span>");
	if (gKon && s.length > 0) {
		s = s.split("\n").join("<br/>");
	} else {
		s = s.replace(/\n/g, "<br/>");
	}
	if (!gIE5) {
		var urlmatch = new RegExp("((?:http|https|ftp|mms|rtsp)://(&(?=amp;)|[A-Za-z0-9\./=\?%_~@#:;\+\-])+)", "ig");
		s = s.replace(urlmatch, "<a target=\"_blank\" href=\"$1\">$1</a>");
	}
	strArticle += s;
	if (!divArtCon) w(s);
}
function attachURL(name, len, pos) {
	if (att.bid < 0) { return location.href+'&ap='+pos; }; //mail
	var ext = null, o = name.lastIndexOf(".");
	if (!att) return null;
	if (o != -1) {
		ext = name.substring(o + 1).toLowerCase();
	}
	var url = "att.php?";
	if (!att.cacheable) url += "n";
	else if (len > 51200) url += "p";
	else url += "s";
	url += "." + att.bid + "." + att.id;
	if (att.ftype) url += "." + att.ftype + "." + att.num;
	url += "." + pos;
	if (ext) url += "." + htmlize(ext);
	return (url);
}
function attach(name, len, pos) {
	var bImg = false;
	var s = "", url = attachURL(name, len, pos);
	if (!url) return;
	var o = name.lastIndexOf(".");
	if (o != -1) {
		var ext = name.substring(o + 1).toLowerCase();
		bImg = (ext == "jpg" || ext == "jpeg" || ext == "gif"
			 || ext == "ico" || ext == "png"  || ext == "pcx"
			 || ext == "bmp");
	}
	var sizes = len + ' 字节';
	if (len > 8192) sizes = parseInt(len/1024) + 'KB';
	if (bImg) {
		s += '<br /><img src="images/img.gif"/>此主题相关图片如下：'
		  + name + ' (' + sizes + ')<br /><a href="' + url + '" target="_blank">'
		  + '<img src="' + url + '" title="按此在新窗口浏览图片" style="margin: 0.2em 0 0.5em 0;" onload="resizeImg(this)" /></a> ';
	} else {
		s += '<br />附件: <a href="' + url + '">' + name + '</a> (' + sizes + ')<br />';
	}
	strArticle += s;
	if (!divArtCon) w(s);
}
function writeArticle() {
	divArtCon.innerHTML = strArticle;
}

function notifyError(parentEle, msg) {
	if (parent) {
		var v = parent.document.getElementById(parentEle);
		if (v) { v.innerHTML = ""; alert(msg); }
	}
}

function getCookie(name, def){
	var cname = name + "="; 
	var dc = document.cookie; 
	if (dc.length > 0) { 
		var begin = dc.indexOf(cname); 
		if (begin != -1) { 
			begin += cname.length; 
			var end = dc.indexOf(";", begin);
			if (end == -1) end = dc.length;
			return unescape(dc.substring(begin, end));
		} 
	}
	return def;
}

var kbsAd = false;
function getAds(i,l,n,t) {
	var ret = "";
	if (!kbsAd) {
		kbsAd = true;
		ret += "<iframe width='0' height='0' src='images/img.gif' frameborder='0' scrolling='no' id='hfad' name='hfad'></iframe>";
	}
	ret += "<a href='" + l + "' target='_blank' onclick='recordAds(" + n + ")' title='为支持水木发展请点击广告'>"
		+ (t?t:"<img src='/guangg/g/" + i + "' border='0'/>") + "</a>";
	return ret;
}
function writeAds(i,l,n,t) {
	w(getAds(i,l,n,t));
}
function recordAds(n) {
	var cc = getCookie('kbsAd', '');
	if (cc.length > 0) cc = cc.split(',');
	else cc = new Array();
	var i, now = parseInt((new Date()).getTime() / 1000);
	for(i=0;i<cc.length-1;i+=2) {
		if (cc[i] == n) {
			if (cc[i+1] > now - 1800) return;
			cc[i+1] = now;
			break;
		}
	}
	if (i >= cc.length - 1) {
		cc.push(n); cc.push(now);
	}
	window.frames['hfad'].document.location.href = 'http://dev.kcn.cn/adsense.php?' + n;
	var expire = new Date();
	expire.setTime(expire.getTime() + 1800000);
	document.cookie = 'kbsAd=' + cc.join(',') + ';path=/;expires=' + expire.toGMTString();
}

function saveParaCookie(v, mask) {
	var ex = '';
	if (!isLogin()) {
		var expire = new Date();
		expire.setTime(expire.getTime() + 3600000 * 24 * 7);
		ex = ';expires=' + expire.toGMTString();
	}
	var cook = (readParaCookie() & ~mask) | (v & mask);
	document.cookie = 'WWWPARAMS=' + cook + ex + ';path=/';
}
function readParaCookie() {
	return parseInt(getCookie('WWWPARAMS', 0));
}
function showUnread() {
	return (isLogin() && gIE && !gIE5 && (readParaCookie() & 0x1000));
}
function getUserid() {
	return getCookie("UTMPUSERID", "guest");
}
function isLogin() {
	return (getUserid() != "guest");
}

function queryString(param, def) {
	 var url = location.search.toUpperCase() + "&";
	 param = param.toUpperCase();
	 if (!def) def="";
	 var pos = url.indexOf(param + "=");
	 if (pos == -1) return def;
	 pos += param.length + 1;
	 return location.search.substring(pos, url.indexOf("&", pos));
}


function getObj(n) {
	return document.getElementById(n);
}

var bbsconImg = new Array();
function resizeImg(obj) {
	bbsconImg.push(obj);
	obj.o_width = obj.width;
	var maxWidth = document.body.clientWidth - 40;
	if (obj.width > maxWidth) obj.width = maxWidth;
}
function adjustImg() {
	var maxWidth = document.body.clientWidth - 40;
	for (var i in bbsconImg) {
		var obj = bbsconImg[i];
		var o_width = obj.o_width;
		obj.width = (o_width > maxWidth) ? maxWidth : o_width;
	}
}
window.onresize = adjustImg;

function addEvent(obj,ev,func){
	if (obj.attachEvent) {
		obj.attachEvent("on"+ev, func);
	} else if(obj.addEventListener) {
		obj.addEventListener(ev,func,true);
	} else {
		obj["on"+ev] = func;
	}
}
function cancelEvent(ev) {
	if (gIE) {
		ev.cancelBubble = true;
		ev.returnValue = false;
	} else {
		ev.preventDefault();
		ev.stopPropagation();
	}
}

function input_okd(obj, ev) {
	var evt = (ev) ? ev : ((window.event) ? event : null);
	if (evt == null) return true;
	var key = evt.keyCode ? evt.keyCode : evt.charCode;
	if (key == 13) {
		cancelEvent(evt);
		if (obj.form.onsubmit && !obj.form.onsubmit()) {
			return true;
		}
		obj.form.submit();
		return false;
	}
	return true;
}

/* textarea onkeydown event handler. to submit form with ctrl+W(IE only) or ctrl+ENTER */
function textarea_okd(func, ev) {
	var evt = (ev) ? ev : ((window.event) ? event : null);
	if (evt == null) return true;
	var key = evt.keyCode ? evt.keyCode : evt.charCode;
	if ((key == 87 && evt.ctrlKey) || (key == 13 && evt.ctrlKey)) {
		cancelEvent(evt);
		if (typeof func == "function")  {
			func();
		} else {
			func.form.submit();
		}
		return false;
	}
	return true;
}

function setCursorPosition(oInput,oStart,oEnd) {
	oInput.focus();
	if( oInput.setSelectionRange ) {
		oInput.setSelectionRange(oStart,oEnd);
	} else if( oInput.createTextRange ) {
		var range = oInput.createTextRange();
		range.collapse(true);
		range.moveEnd('character',oEnd);
		range.moveStart('character',oStart);
		range.select();
	}
}

function makeViewable(n) {
	var o = getObj(n), b = document.body;
	if (!o) return;
	var h1 = o.offsetTop, h2 = h1 + o.offsetHeight;
	var v1 = b.scrollTop, v2 = v1 + b.clientHeight;
	if (h1 >= v1 && h1 <= v2 && h2 >= v1 && h2 <= v2) return;
	if (h2 - h1 < v2 - v1) b.scrollTop = h2-(v2-v1);
	else b.scrollTop = h1;
}


/* refresh message frame */
function alertmsg() {
	if (top.fmsg && !top.fmsg.document.getElementById("msgs")) top.fmsg.location.reload();
}


window.onload = function() {
	/* set focus */
	var i,f = getObj("sfocus");
	if (f) {
		f.focus();
		setCursorPosition(f, 0, 0);
	} else {
		f = getObj("sselect");
		if (f) {
			f.focus(); f.select();
		}
	}

	/*
	 * apply col class. this is a workaround for css2.1 - atppp
	 * see also: http://ln.hixie.ch/?start=1070385285&count=1
	 * TODO: consider td's span properties
	 *
	 * also: apply alternate style for rows.
	 *
	 * Don't use this with long table, as IE runs it extremely slowly.
	 */
	var m = document.getElementsByTagName("table");
	for(i=0;i<m.length;i++) {
		var tab = m[i];
		if (tab.className.indexOf("adj") == -1) continue;
		var cols = tab.getElementsByTagName("col");
		if (cols.length == 0) continue;
		var rows = tab.getElementsByTagName("tr");
		for (var j=0;j<rows.length;j++) {
			var row = rows[j];
			row.className = (j%2)?"odd":"even";
			var td = row.getElementsByTagName("td");
			for (var k=0;k<td.length;k++) {
				if (cols[k] && cols[k].className) {
					if (td[k].className) {
						td[k].className += " " + cols[k].className;
					} else {
						td[k].className = cols[k].className;
					}
				}
			}
		}
	}
		
	/* this is a workaround for some weird behavior... ask atppp if you are interested. BUGID 7629 */
	if (gFx) {
		var ll, links = document.getElementsByTagName("link");
		for(i=0; i<links.length; i++) {
			ll = links[i];
			if((ll.getAttribute("rel") == "stylesheet")) {
				ll.disabled = true;
				ll.disabled = false;
			}
		}
	}

	for(i=0; i<bootFn.length; i++) {
		var fn = bootFn[i]; fn();
	}
};

/* check required fields when submitting form. required fields are denoted with classname "req" */
function chkreq(frm) {
	var f = frm.getElementsByTagName("input");
	var i;
	for(i=0;i<f.length;i++) {
		var fe = f[i];
		if (fe.className=="req") {
			if(fe.value==''){
				alert('有必填内容为空');
				fe.focus();
				return false;
			}
		}
	}
	return true;
}

var gTimer;
function footerStart() {
	var prefixZero = function(d) {
		if (d > 9) return d;
		else return "0" + d;
	};
	var MyTimer = function() {
		this.start = (new Date()).getTime();
		this.serverDiff = serverTime * 1000 - this.start;
		this.serverTime = serverTime * 1000;
		this.startTime = this.start - stayTime * 1000;
		this.lastStay = this.lastClock = "";
		this.refreshTime = 0;
		this.userid = getUserid();
	};
	MyTimer.prototype.refresh = function() {
		var now = (new Date()).getTime();
		this.serverTime = this.serverDiff + now;
		var Timer = new Date(this.serverTime);
		var str = Timer.getUTCFullYear() + "年" + prefixZero(Timer.getUTCMonth() + 1) + "月" 
				+ prefixZero(Timer.getUTCDate()) + "日" + prefixZero(Timer.getUTCHours())
				+ ":" + prefixZero(Timer.getUTCMinutes());
		if (this.lastClock != str) {
			this.lastClock = str;
			getObj("divTime").innerHTML = str;
		}
		var staySec = (now - this.startTime) / 60000;
		str = parseInt(staySec/60) + "小时" + parseInt(staySec % 60) + "分钟";
		if (this.lastStay != str) {
			this.lastStay = str;
			getObj("divStay").innerHTML = str;
		}
		var bF5 = (this.userid != getUserid());
		if (bF5) {
			if (top.menu) top.menu.location.href = isLogin() ? 'bbsleft.php' : 'bbsguestleft.html';
		}
		if ((this.refreshTime > 0 && now > this.refreshTime) || bF5) {
			location.reload();
		} else {
			setTimeout("gTimer.refresh()", 1000);
		}
	};
	gTimer = new MyTimer();
	gTimer.refresh();