today前台将与统一身份认证系统接口

校方一直有想法认为today应该封闭在校内,但事实上today包罗万象,虽然不乏应该限于校内的小圈子的信息,但也有公开招聘、招标、招生宣传这样的信息需要面向校外,因此允许发文者自行选择校内还是校外应该是更为合理的方案。

XMLHTTP 与 ServerXMLHTTP的区别

XMLHTTP vs ServerXMLHTTP

 

XMLHTTP

ServerXMLHTTP

1

Works on Windows 98, 95 and ME

Requires at least Windows NT 4 with IE5.01 .

2

 

Does not have a means of waiting for an async call other than using another thread to handle the response via onreadystatechange.

 

Another technique is to loop on the main thread, polling the readystate property.

For example:

 While xmlhttp.readystate <> 4

   ' async request not complete yet; still waiting

 Wend

 

But this is not as efficient as the ServerXMLHTTP's WaitForResponse method

Has a waitForResponse method with a timeout when using async calls.

3

 

Allows configuring timeouts when sending messages.

4

Is designed for single-user, desktop applications, such as running in a browser-based app.

 

XMLHTTP's assumption that it is used only in single-user environments has security implications.

Do not use XMLHTTP in multi-user scenarios such as on IIS/ASP servers.

Also, in various cases, XMLHTTP may display UI dialogs (to collect credentials).

Supports multi-user, server-based applications, such as ASP apps.

5

Because XMLHTTP is designed for single-user client applications and is based on WinInet, it enforces strict limits on the number of simultaneous connections to a given server.

The limit is either 2 or 4 (depending on HTTP version).

The ServerXMLHTTP component does not impose any limits on the number of connections to a server.

6

XMLHTTP integrates with the IE browser's cache, which may cause problems in which "stale" response data is returned.

ServerXMLHTTP does not implement a cache.

7

XMLHTTP is HTTP/1.1 compliant.

XMLHTTP does support HTTP/1.1 chunking.

ServerXMLHTTP reports itself as an HTTP/1.0 client.

The reason is that ServerXMLHTTP does not support the HTTP/1.1 response "chunking" feature, which is required for 1.1 compliance.

8

By using the IE browser's proxy settings, XMLHTTP can take advantage of IE's auto-detection of proxy servers.

If IE is configured to access sites via a proxy server, then all requests made via XMLHTTP will also go through the proxy.

However, IE (and thus XMLHTTP) can be configured to bypass the proxy server for certain sites (assuming that a direct connection to the target server can be made).

This is done in the "Tools/Internet Options/Connections/LAN Settings" dialog in IE.

The "Bypass proxy server for local addresses" option should be checked to have the proxy server bypassed for intranet sites.

ServerXMLHTTP does not support any auto-detection or discovery of proxy servers; you must explicitly specify the name of the proxy server using the proxycfg.exe utility.

Can be configured with WinHTTP proxy config to access other machines directly (no proxy server).

9

The XMLHTTP component in MSXML 3.0 supports automatic gzip decompression;

ServerXMLHTTP does not.

10

 

ServerXMLHTTP in MSXML 3.0 SP1 supports SSL certificates.

11

重用Socket端口,或者有Socket端口缓存.

没有缓存,每次连接都会启用一个新的Socket端口.

12

 

默认的CodePageUTF8.

默认时,URL被先转换为UTF8编码.

对today进行图片减肥

自2010年8月today后台编辑器更换以来,没有进行上传图片尺寸的限制,这一失误现在看来后果很严重。

MS XMLHTTP组件的奇异故障

在升级完一个名为kb2524375的补丁后不久,晚上回家发现博客首页无法显示,源文件全部都是乱码,一头冷汗。

将该补丁删除,故障依旧。一番胡乱折腾,差点没有陷入乱码误区,好在灵光一现怀疑可能是XMLHTTP组件出现故障,

将组件创建方法由:

server.CreateObject("Microsoft.XMLHTTP")

改为:Server.CreateObject("MSXML2.ServerXMLHTTP")

或 Server.CreateObject("Msxml2.XMLHTTP")

系统恢复正常。

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