Tuesday, December 30, 2008

Ubuntu 8.10 virtualbox transparent bridge configure

# 替换下面所有的david为实际的ubuntu用户名
$> sudo apt-get install uml-utilities
$> sudo gpasswd -a david uml-net
$> sudo apt-get install bridge-utils
# 重启ubuntu

$> sudo chmod 0666 /dev/net/tun #设置访问权限
$> sudo tunctl -t tap0 -u david #建立一个tap设备, 名字为tap0, 所有者为david
$> sudo ifconfig eth0 0.0.0.0 promisc #使eth0进入promiscuous模式
$> sudo ifconfig tap0 0.0.0.0 promisc #使tap0进入promiscuous模式
$> sudo brctl addbr br0 #增加一个网桥
$> sudo brctl addif br0 eth0 #将eth0加入网桥
$> sudo ifconfig eth0 up #激活eth0
$> sudo dhclient br0 #为br0设置IP地址
$> sudo brctl addif br0 tap0 #将tap0加入网桥
$> sudo ifconfig tap0 up #激活tap0

$> sudo /etc/init.d/networking restart
这个操作之后br0就应该会从局域网分配到ip地址,eth0和tap0则经由br0链到网络,不过这样机器重启之后这些配置就没有了,所以可以把这些信息写到/etc/network/interfaces中,
$> more /etc/network/interfaces

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual

auto tap0
iface tap0 inet manual
tunctl_user david

# The primary network interface - use DHCP to find our address
auto br0
iface br0 inet dhcp
bridge_ports eth0 tap0

up ifconfig tap0 0.0.0.0 up
up ifconfig eth0 0.0.0.0 up

然后
$> sudo /etc/init.d/networking restart
就可以,并且下次重启之后br0和tap0会自动被激活,ifconfig命令可以看到如下类似信息。
$> ifconfig
br0 Link encap:Ethernet HWaddr 00:21:97:12:e5:9c
inet addr:192.168.1.226 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::221:97ff:fe12:e59c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:145 errors:0 dropped:0 overruns:0 frame:0
TX packets:33 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:28802 (28.8 KB) TX bytes:4858 (4.8 KB)

eth0 Link encap:Ethernet HWaddr 00:21:97:12:e5:9c
inet6 addr: fe80::221:97ff:fe12:e59c/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:3205 errors:0 dropped:0 overruns:0 frame:0
TX packets:965 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:478611 (478.6 KB) TX bytes:146887 (146.8 KB)
Interrupt:17

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:183 errors:0 dropped:0 overruns:0 frame:0
TX packets:183 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15553 (15.5 KB) TX bytes:15553 (15.5 KB)

tap0 Link encap:Ethernet HWaddr 22:7c:6a:b3:1d:b8
inet6 addr: fe80::207c:6aff:feb3:1db8/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:2294 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

这个配置在机器重起后,虽然已经可以上网,但是eth0其实没有分配ip,所以进入ubuntu桌面后,会看到右上角的network disabling的网络链接。
以上是基于virtualbox2.0.4设置的,新版的2.1.0设置应该更简单,不需要设置tap0。
最后设置virtualbox:启动virtualbox,在主界面上选中要使用刚才建立的虚拟网络接口tap0的虚拟机,点“设置”,在弹出的窗口中选“网络”,选中其中一块网卡(通常为“网络适配器 0”),选中“启用网络适配器”,“连接到”后面选“Host Interface”,选中“接入网线”,然后在“主机网络界面名称”中填入刚才建立的虚拟网络接口的名字“tap0”,确定。
Reference: http://download.virtualbox.org/virtualbox/2.0.4/UserManual.pdf
http://forum.ubuntu.org.cn/viewtopic.php?t=63120
http://linux.chinaunix.net/bbs/thread-1029090-1-1.html

Saturday, December 27, 2008

clear history command when logout linux

$> vi .bash_logout
# ~/.bash_logout

history -c
clear

Reference:
http://rcsg-gsir.imsb-dsgi.nrc-cnrc.gc.ca/documents/advanced/node125.html

linux auto logout setting

$> cd
$> vi .profile
# user will be auto logout after 300 seconds.
export TMOUT=300

如果是针对所有用户,则修改/etc/profile文件。

添加deflate gzip模块到apache2服务器

$> ./configure --prefix=/usr/local/apache2 --enable-so --enable-mods-shared=all --enable-modules=all
Configuring Apache Portable Runtime Utility library...

checking for APR-util... yes
configure: error: Cannot use an external APR-util with the bundled APR

如果编译过程中发现APR-util的错误,可以加上--with-included-apr这个参数,如下:
$> ./configure --prefix=/usr/local/apache2 --enable-so --enable-mods-shared=all --enable-modules=all --with-included-apr
$> make
$> cp ./modules/filters/.libs/mod_deflate.so /usr/local/apache2/modules
$> vi /usr/local/apache2/conf/httpd.conf
# append 2 line to httpd.conf
LoadModule deflate_module modules/mod_deflate.so
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/x-json application/x-javascript
$> /usr/local/apache2/bin/apachectl graceful

更多关于deflate module的设置可参考官方说明:http://httpd.apache.org/docs/2.0/mod/mod_deflate.html

Reference:
http://yuweijun.blogspot.com/2007/09/apache22module.html

Thursday, December 25, 2008

使用arping查询得到局域网里其他机器的mac地址

#!/bin/bash
# 使用arping查询得到mac地址
for i in `seq 254` ; do
sudo /sbin/arping -c2 192.168.1.$i | awk '/Unicast reply from/{print $4,$5}' | sed 's/\[//' | sed 's/\]//'
done

#!/bin/bash
for ((i = 1; i < 254; i++))
do
sudo /sbin/arping -i eth0 192.168.1.$i -c 1
done
/sbin/arp -a > mac_table

Tuesday, December 23, 2008

在搜索引擎上查询网站的收录链接信息(SEO)

1. http://www.sogou.com
site:http://www.php.net/
link:http://www.php.net/

2. http://www.google.cn
link:http://www.php.net/ 不准确
site:http://www.php.net/
intext:http://www.php.net
www.php.net -site:www.php.net
注意,该命令反馈的链接中可能包括那些仅仅提及你的URL而实际上并没与你做链接的网站。
http://www.google.com/search?q=php.net&as_qdr=d1
http://www.google.com/search?hl=en&q=site%3Aphp.net&as_qdr=m

3. http://www.baidu.com
site:(php.net)

4. http://www.yahoo.cn/中直接输入网址可以查询网页收录数量
如直接输入:http://www.php.net/

5. 其他一些工具:
http://sitemap.cn.yahoo.com
http://indexed.webmasterhome.cn/?domain=php.net
http://siteexplorer.search.yahoo.com/
http://tool.admin5.com/
http://tool.chinaz.com/
http://www.yisou.com/search:site%3Ahttp%3A//www.php.net

IE6/IE7上ajax请求的一个bug

UTF-8编码的页面,在IE6/IE7中用ajax方式和普通直接访问方式请求此url,结果是不一样的:
http://localhost/test.php?q=测试中文

ajax: http://localhost/test.php?q=测试中文
服务器端收到的请求,其中的中文参数是以ISO-8859-1编码的(浏览器的默认编码方式),所以服务器端收到的参数其实是乱码的,所以ajax请求URL中的参数一定要经过encode,除了ie之外,其他浏览器测试下来都会自动url encode其中的参数。

非ajax: http://localhost/test.php?q=%E6%B5%8B%E8%AF%95%E4%B8%AD%E6%96%87
服务器端收到正常的UTF-8编码后的参数。

ie中空白渲染的问题

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>test</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
</head>
<body>
<form action="test_submit" method="get" accept-charset="utf-8">
<input type="text" name="some_name" value="" id="name">
<div id="x" style="white-space:pre;">x xx x</div>
<div id="y">y yy y</div>
<p><input type="button" value="click here" onclick="document.getElementById('name').value=document.getElementById('x').innerHTML"></p>
<p><input type="button" value="click here" onclick="document.getElementById('name').value=document.getElementById('y').innerHTML"></p>
</form>
</body>
</html>

上面的例子在ie6/ie7中测试时可发现y组成的字符串,其中的空格被ie渲染过后,取到的innerHTML已经变为一个空格了,在firefox/safari上在渲染后看上去是只有一个空格,但innerHTML取到的还是与原码是保持一致的。

install ruby-mysql gem in mac osx 10.5

首先用dmg包安装的mysql(/usr/local/mysql),来安装mysql-ruby gem包:
$> sudo gem install mysql -- --with-mysql-dir=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib --with-mysql-include=/usr/local/mysql/include --with-mysql-config=/usr/local/mysql/bin/mysql_config
Building native extensions. This could take a while...
Successfully installed mysql-2.7
1 gem installed

$> sudo gem install dbd-mysql -- --with-mysql-dir=/usr/local/mysql --with-mysql-lib=/usr/local/mysql/lib --with-mysql-include=/usr/local/mysql/include --with-mysql-config=/usr/local/mysql/bin/mysql_config
Successfully installed dbd-mysql-0.4.2
1 gem installed
Installing ri documentation for dbd-mysql-0.4.2...
Installing RDoc documentation for dbd-mysql-0.4.2...
看上去是装成功了,但实际使用时却抛出了以下错误:
dyld: lazy symbol binding failed: Symbol not found: _mysql_init
Referenced from: /Library/Ruby/Gems/1.8/gems/mysql-2.7/lib/mysql.bundle
Expected in: dynamic lookup

这个主要是因为平台原因造成的,分别查看dmg包和二进制包的mysql_config可看到-arch的差异:
$> /usr/local/mysql/bin/mysql_config
Usage: /usr/local/mysql/bin/mysql_config [OPTIONS]
Options:
--cflags [-I/usr/local/mysql/include -Os -arch ppc -fno-common -D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -DIGNORE_SIGHUP_SIGQUIT -DDONT_DECLARE_CXA_PURE_VIRTUAL]
--include [-I/usr/local/mysql/include]
--libs [-L/usr/local/mysql/lib -lmysqlclient -lz -lm]
--libs_r [-L/usr/local/mysql/lib -lmysqlclient_r -lz -lm]
--socket [/tmp/mysql.sock]
--port [0]
--version [5.1.23-rc]
--libmysqld-libs [-L/usr/local/mysql/lib -lmysqld -lz -lm]
$> /usr/local/mysql5/bin/mysql_config
Usage: /usr/local/mysql5/bin/mysql_config [OPTIONS]
Options:
--cflags [-I/usr/local/mysql5/include -g -Os -arch i386 -fno-common -D_P1003_1B_VISIBLE -DSIGNAL_WITH_VIO_CLOSE -DSIGNALS_DONT_BREAK_READ -DIGNORE_SIGHUP_SIGQUIT]
--include [-I/usr/local/mysql5/include]
--libs [-L/usr/local/mysql5/lib -lmysqlclient -lz -lm -lmygcc]
--libs_r [-L/usr/local/mysql5/lib -lmysqlclient_r -lz -lm -lmygcc]
--socket [/tmp/mysql.sock]
--port [0]
--version [5.0.67]
--libmysqld-libs [-L/usr/local/mysql5/lib -lmysqld -lz -lm -lmygcc]

而mac osx 10.5的macbook则是i386的:
$> uname -a
Darwin Macintosh.local 9.5.0 Darwin Kernel Version 9.5.0: Wed Sep 3 11:29:43 PDT 2008; root:xnu-1228.7.58~1/RELEASE_I386 i386

所以用i386平台编译的mysql5来编译安装mysql-ruby包:


$> sudo env ARCHFLAGS="-arch i386" gem install mysql -- --with-mysql-config=/usr/local/mysql5/bin/mysql_config
Building native extensions. This could take a while...
Successfully installed mysql-2.7
1 gem installed

$> sudo env ARCHFLAGS="-arch i386" gem install dbd-mysql -- --with-mysql-config=/usr/local/mysql5/bin/mysql_config
Successfully installed dbd-mysql-0.4.2
1 gem installed
Installing ri documentation for dbd-mysql-0.4.2...
Installing RDoc documentation for dbd-mysql-0.4.2...

这样才能正确安装上ruby-mysql和dbd-mysql。

在ubuntu 8上安装字体

将字体复制到truetype目录中:
$> sudo mv Desktop/droids /usr/share/fonts/truetype/droids
然后更新字体缓存:
$> sudo fc-cache

Reference:
http://www.fwolf.com/blog/post/170

linux 用户登录时的欢迎词修改

$> vi /etc/motd

Monday, December 22, 2008

php中self关键字说明

self一般指向当前类的静态方法和常量,用self::加方法名和常量名方式引用。
$this则是指向当前类的实例对象,用$this->加方法名和实例变量方式引用。
在一些参数为callback的方法里,可以用字符串'self'形式指向当前类,而不要直接用self,如call_user_func('self', $method)中。
另外self引用的总是当前类的方法和常量,子类调用父类的静态方法,其中的父类方法中的self仍是指向父类本身的,如果子类的同名方法覆盖了父类方法,则可以用parent::来引用父类方法。

<?php
interface AppConstants {
const FOOBAR = 'Hello, World.';
}

class Example implements AppConstants {
public function test() {
echo self :: FOOBAR;
}
}

$obj = new Example();
$obj->test(); // outputs "Hello, world."

class MyClass {
const NAME = 'Foo';

protected function myFunc() {
echo "MyClass::myFunc()\n";
}
static public function display() {
echo self :: NAME;
}
static public function getInstance() {
$instance = new self;
return $instance;
}
}

class ChildClass extends MyClass {
const NAME = 'Child';

// Override parent's definition
public function myFunc() {
// But still call the parent function
parent :: myFunc();
echo "ChildClass::myFunc()\n";
}
}

$class = new ChildClass();
$class->myFunc();


echo('Class constant: ');
ChildClass :: display();
echo('Object class: ');
echo(get_class(ChildClass :: getInstance()));
?>

== output ==
Hello, World.
MyClass::myFunc()
ChildClass::myFunc()
Class constant: Foo
Object class: MyClass
另外可以再参考一个php 5.3.0的运行时绑定(迟绑定)的用法,地址是:
http://cn2.php.net/oop5.late-static-bindings

在ubuntu 8.10 上安装passenger 2.0.6

按照http://www.rubyenterpriseedition.com/download.html#ubuntu上的说明,在ubuntu8.10上安装passenger时报以下错误:
Welcome to the Phusion Passenger Apache 2 module installer, v2.0.6.

This installer will guide you through the entire installation process. It
shouldn't take more than 3 minutes in total.

Here's what you can expect from the installation process:

1. The Apache 2 module will be installed for you.
2. You'll learn how to configure Apache.
3. You'll learn how to deploy a Ruby on Rails application.

Don't worry if anything goes wrong. This installer will advise you on how to
solve any problems.

Press Enter to continue, or Ctrl-C to abort.

Checking for required software...

* GNU C++ compiler... found at /usr/bin/g++
* Ruby development headers... found
* OpenSSL support for Ruby... found
* RubyGems... found
* Rake... found at /opt/ruby-enterprise/bin/rake
* Apache 2... found at /usr/sbin/apache2
* Apache 2 development headers... found at /usr/bin/apxs2
* Apache Portable Runtime (APR) development headers... found at /usr/bin/apr-1-config
* Apache Portable Runtime Utility (APR) development headers... found at /usr/bin/apu-1-config
* fastthread... found
* rack... found
--------------------------------------------

--------------------------------------------
Compiling and installing Apache 2 module...
cd /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-2.0.6
/opt/ruby-enterprise/bin/ruby -S rake clean apache2
/usr/bin/rake:27:in `require': no such file to load -- rake (LoadError)
from /usr/bin/rake:27

--------------------------------------------
It looks like something went wrong

Please read our Users guide for troubleshooting tips:

/opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-2.0.6/doc/Users guide.html

If that doesn't help, please use our support facilities at:

http://www.modrails.com/

We'll do our best to help you.

在/usr/bin/rake文件的27行前加上一句:
require 'rubygems'
重新运行passenger命令就可以正确安装上。
ubuntu 8.10中原来已经安装了ruby 1.8.7,与ruby-enterprise中的ruby版本不一样,需要在用户根目录下的.bashrc文件中调整一下PATH:
export PATH=/opt/ruby-enterprise/bin:$PATH

另外系统中sudo没有gem命令,需要加个软链接,这样才能用sudo安装gem包:
$> sudo ln -s /opt/ruby-enterprise/bin/gem /usr/bin/gem
(不要用sudo apt-get install rubygems 安装)

之后再生成二个文件:
$> sudo vi /etc/apache2/conf.d/rails
LoadModule passenger_module /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-2.0.6/ext/apache2/mod_passenger.so
PassengerRoot /opt/ruby-enterprise/lib/ruby/gems/1.8/gems/passenger-2.0.6
PassengerRuby /opt/ruby-enterprise/bin/ruby
RailsEnv development
RailsDefaultUser test

$> sudo vi /etc/apache2/sites-enabled/rails_app
<VirtualHost *:80>
ServerName www.yourhost.com
DocumentRoot /somewhere/public
</VirtualHost>

重启apache2之后访问www.yourhost.com.

Wednesday, December 17, 2008

修改gnome-terminal的默认窗口大小

原来打开时为80*24的尺寸,如果需要调整默认的大小,可按下操作:
$> sudo vi /usr/share/vte/termcap/xterm
找到下面这行
:co#80:it#8:li#24\
修改其中的80和24,分别为terminal的高和宽。
也可以用以下命令查看参数:
$> gnome-terminal --help-all

Tuesday, December 16, 2008

rails error ActionController::InvalidAuthenticityToken

升级到Rails 2.2.2后,在用户登录时抛出以上错误,因为Rails新版本对安全控制做了一些加强措施,只要在form中添加<%= token_tag %>即可,Rails会添加一个token(在action中的form_authenticity_token方法生成这个token)在form中,随表单一起提交,可以适当的防止一些web攻击。
<input name="authenticity_token" type="hidden" value="d688e6bf60f43bd171504e059de1ba03f876d129" />
具体可参考 ActionController::RequestForgeryProtection 和 config/environment.rb 中的配置说明:
# Your secret key for verifying cookie session data integrity.
# If you change this key, all old sessions will become invalid!
# Make sure the secret is at least 30 characters and all random,
# no regular words or you'll be exposed to dictionary attacks.
config.action_controller.session = {
:session_key => '_sv3_session',
:secret => 'b35a7a9ffb88288f11c03b0c24fe45f90879d8fbb83f9ba70649b489d8165f06d4484dd07c6e41c2d9616630781fd739a127d1285c589db3d77801afd30a9d35'
}

Monday, December 15, 2008

mongrel and rails 2.2.2 环境下报 mysql lib 的错误及解决方法

Processing Rails::InfoController#properties (for 127.0.0.1 at 2008-12-15 17:10:53) [GET]

LoadError (dlopen(/Library/Ruby/Site/1.8/universal-darwin9.0/mysql.bundle, 9): Library not loaded: /usr/local/mysql/lib/libmysqlclient.15.dylib
Referenced from: /Library/Ruby/Site/1.8/universal-darwin9.0/mysql.bundle
Reason: image not found - /Library/Ruby/Site/1.8/universal-darwin9.0/mysql.bundle):
/Library/Ruby/Site/1.8/universal-darwin9.0/mysql.bundle
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `require'
/Library/Ruby/Gems/1.8/gems/activesupport-2.2.2/lib/active_support/dependencies.rb:153:in `require'

在MAC OSX 10.5 和 mysql 5.1.23-rc 上,rails 2.2.2 用 mongrel server 启动时访问首页mysql连接属性时抛出以上错误,在对应的/usr/local/mysql/lib下根本没有/usr/local/mysql/lib/libmysqlclient.15.dylib这个文件,当然会加载失败,之前在 rails 2.0.2 上倒没有碰到过这个问题。从mysql官网重新下载了一个 mysql 5.0.67,从其下面拷了一个libmysqlclient.15.dylib 到 /usr/local/mysql/lib/libmysqlclient.15.dylib,就可以解决此问题。
$> sudo cp /usr/local/mysql5/lib/libmysqlclient.15.dylib /usr/local/mysql/lib/libmysqlclient.15.dylib

Tuesday, December 09, 2008

svn:ignore command line

$> svn propset svn:ignore -F .cvsignore .
property 'svn:ignore' set on '.'

Reference: http://svnbook.red-bean.com/en/1.1/ch07s02.html

Monday, December 08, 2008

MySQL5.0 同步错误 errno 2013 及解决方法

081208 11:28:29 [ERROR] Slave I/O thread: error connecting to master 'repl@server:3306': Error: 'Lost connection to MySQL server at 'reading initial communication packet', system error: 113' errno: 2013 retry-time: 60 retries: 86400

主要是因为slave连接不到master,可以从以下几点着手解决:
1. iptables是否将对应的master db port给禁了?
2. master db server 是否能够上网? slave db server 是否能够上网?

usage of call_user_func_array function in php


<?php

class Foo {
static public function test($name) {
print "Hello {$name}!\n";
}

public function bar($name){
print "Hello {$name}\n";
}
}

// call static Class methods.
call_user_func_array('Foo::test', array('Hannes'));
// Hello Hannes!
call_user_func_array(array('Foo', 'test'), array('Philip'));
// Hello Philip!


$foo = new Foo();
// call object instance methods.
call_user_func_array(array($foo, 'bar'), array('World!'));
call_user_func_array(array($foo, 'bar'), 'World!');
// Hello World!

?>

参考php手册:
callback
有些诸如 call_user_function() 或 usort() 的函数接受用户自定义的函数作为一个参数。Callback 函数不仅可以是一个简单的函数,它还可以是一个对象的方法,包括静态类的方法。
一个 PHP 函数用函数名字符串来传递。可以传递任何内置的或者用户自定义的函数,除了 array(),echo(),empty(),eval(),exit(),isset(),list(),print() 和 unset()。
一个对象的方法以数组的形式来传递,数组的下标 0 指明对象名,下标 1 指明方法名。
对于没有实例化为对象的静态类,要传递其方法,将数组 0 下标指明的对象名换成该类的名称即可。
Reference:
http://cn.php.net/manual/en/function.call-user-func-array.php

Friday, December 05, 2008

Hack ruby String#length

en = 'test'
cn = '一'
p en # >> "test"
p cn # >> "\344\270\200"
puts cn.inspect # >> "\344\270\200"
p "344".oct.to_s(16)
# >> "e4"
p "270".oct.to_s(16)
# >> "b8"
p "200".oct.to_s(16)
# >> "80"
p "344".oct
# >> 228
p "270".oct
# >> 184
p "200".oct
# >> 128
cn.scan(/./).each do |ch|
p ch, ch[0]
end

# hack ruby String#length
puts en.length # >> 4
puts cn.length # >> 3
puts en.scan(/./).length # >> 4
puts cn.scan(/./).length # >> 3
puts en.scan(/./u).length # >> 4
puts cn.scan(/./u).length # >> 1

Thursday, December 04, 2008

在Ruby中将unicode直接量转化成为utf8字符

require 'cgi'
def unicode_utf8(unicode_string)
unicode_string.gsub(/\\u\w{4}/) do |s|
str = s.sub(/\\u/, "").hex.to_s(2)
if str.length < 8
CGI.unescape(str.to_i(2).to_s(16).insert(0, "%"))
else
arr = str.reverse.scan(/\w{0,6}/).reverse.select{|a| a != ""}.map{|b| b.reverse}
# ["100", "111000", "000000"]
hex = lambda do |s|
(arr.first == s ? "1" * arr.length + "0" * (8 - arr.length - s.length) + s : "10" + s).to_i(2).to_s(16).insert(0, "%")
end
CGI.unescape(arr.map(&hex).join)
end
end
end

puts unicode_utf8('test\u4E2Dtest\u6587test\u6D4Btest\u8BD5test')

find command examples related with file status

空目录
find . -type d -empty

n*24小时前访问过的文件
find . -atime +2

n分钟前状态发生改变的文件
find . -cmin +10

n*24小时前内容有被修改过的文件
find . -mtime +1

n*24小时与(n+1)*24小时这一天中,内容有被修改过的文件(数字n前没有"+"号)
find . -mtime 1

删除find命令找到的文件
find . -cmin 1 -delete

这上面的命令中需要注意一点是其中数字前面需要带上"+"号,才表示这个时间点之前的时间段,如果没有提供"+"号,则指这的就限定在这个时间点内,如这一天内或者这一分钟内。

更多find相关用法可参考http://linux.about.com/od/commands/l/blcmdl1_find.htm

Friday, November 28, 2008

construnctor of javascript

Object
the superclass of all JavaScript objects
Constructor
new Object( );
This constructor creates an empty object to which you can add arbitrary properties.

Properties
All JavaScript objects, how ever they are created, have the following properties.
constructor

var f = function(){}
var g = function(){}
var f1 = new f();
var f2 = new f();
var g1 = new g();
console.log(f.constructor); // Function()
console.log(g.constructor); // Function()
console.log(f.constructor == g.constructor); // true
console.log(f1.constructor); // function() [f]
console.log(g1.constructor); // function() [g]
console.log(f1.constructor == g1.constructor); // false
console.log(f1.constructor == f2.constructor); // true
console.log(f1.constructor === f2.constructor); // true

Friday, November 21, 2008

HTML中的空白对页面元素布局的影响

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>HTML中的空白(空格)对页面元素布局的影响</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<style type="text/css" media="screen">
span {
border: 1px #333 solid;
}
</style>
</head>

<body>
<span>测试</span> <span> 开始标签前的空白会覆盖开始标签后的空白。</span> <span> 测试</span>
<br /><br />
<span>结束标签前的空白会覆盖结束标签后的空白。 </span> <span>此文字之前的空白被前面的结束标签前的空白覆盖。</span>
<span>测试 </span> <span>测试</span>
<br /><br />
<span>结束标签前的空白会覆盖结束标签后的空白,而开始标签前的空白又覆盖了后面的空白。 </span> <span> 此文字之前的空白被前面开始标签前的空白覆盖,而开始标签前的空白也被前面的空白覆盖。</span>
<span>测试 </span> <span>测试</span>
</body>
</html>

以上结果基于firefox/safari/opera测试,IE未测试,神奇的IE表现肯定与众不同。

对于inline elements使用的几点说明

对于inline elements:
1、设置margin-top, margin-bottom这二个属性是无效的,但是有margin-left, margin-right。
2、设置以下几个属性也是无效的:min-width, min-heigth, width, heigth, max-width, max-height,另width的几个属性应用于table rows也是无效的,而height的几个属性应用于table columns也是无效的。
3、对于vertical-align,则只能对inline elements和table-cell elements生效。

Tuesday, November 18, 2008

Java 多态学习笔记

在面向对象的程序设计语言中,多态是继数据抽象和继承之后的第三个基本特征。
将一个方法调用同一个方法主体关联起来称作绑定,程序在运行时能从对象提供的信息中获取对象的类型,从而调用正确的方法体,所以也称为运行时绑定,后期绑定。
多态意味着“不同的形态”,就是对于继承自同一基类的不同子类对象,在相同的接口方法被调用时,会在运行时找到方法相对应的方法体。多态是跟继承协同工作的,是以继承为基础的。
在java中,除了static方法和final方法(private方法也是属于final方法)之后,其他所有的方法都是后期绑定的,通过后期绑定实现多态。这也就是说对于普通的方法调用可以是多态的,而对于静态方法和属性字段则不存在多态。
在继承时,只有public、protected和包可见的方法会被重载,对于基类中的private的方法是不会被子类覆盖的,对于子类而言,是不知道父类中是否有同名的private方法的,子类中同名的private方法就是一个完全不相关的全新方法。

Sunday, November 16, 2008

Send mail through gmail smtp using php and phpmailer

require_once("class.phpmailer.php");
$mail = new PHPMailer();
$mail->IsSMTP(); // telling the class to use SMTP
$mail->ContentType = "text/plain"; // text/plain or text/html

$mail->Host = "smtp.gmail.com"; // had been hacked in class.smtp.php, ssl://smtp.gmail.com
$mail->SMTPAuth = true;
$mail->Username = "test.yu@gmail.com";
$mail->Password = "****password****";

$mail->From = "test.yu@gmail.com";
$mail->FromName = "www.gmail.com";
$mail->AddAddress("test.yu@gmail.com");

// CC and BCC
// $mail->AddCC("test@test.com");
// $mail->AddBCC("anothermail@test.com");

$mail->Subject = "This is my subject";
$mail->Body = "This is my message";

if(!$mail->Send()) {
echo "Message was not sent";
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Email sent";
}
?>

class.phpmailer.php source:
////////////////////////////////////////////////////
// PHPMailer - PHP email class
//
// Class for sending email using either
// sendmail, PHP mail(), or SMTP. Methods are
// based upon the standard AspEmail(tm) classes.
//
// Copyright (C) 2001 - 2003 Brent R. Matzelle
//
// License: LGPL, see LICENSE
////////////////////////////////////////////////////

/**
* PHPMailer - PHP email transport class
* @package PHPMailer
* @author Brent R. Matzelle
* @copyright 2001 - 2003 Brent R. Matzelle
*/
class PHPMailer
{
/////////////////////////////////////////////////
// PUBLIC VARIABLES
/////////////////////////////////////////////////

/**
* Email priority (1 = High, 3 = Normal, 5 = low).
* @var int
*/
var $Priority = 3;

/**
* Sets the CharSet of the message.
* @var string
*/
var $CharSet = "iso-8859-1";

/**
* Sets the Content-type of the message.
* @var string
*/
var $ContentType = "text/plain";

/**
* Sets the Encoding of the message. Options for this are "8bit",
* "7bit", "binary", "base64", and "quoted-printable".
* @var string
*/
var $Encoding = "8bit";

/**
* Holds the most recent mailer error message.
* @var string
*/
var $ErrorInfo = "";

/**
* Sets the From email address for the message.
* @var string
*/
var $From = "root@localhost";

/**
* Sets the From name of the message.
* @var string
*/
var $FromName = "Root User";

/**
* Sets the Sender email (Return-Path) of the message. If not empty,
* will be sent via -f to sendmail or as 'MAIL FROM' in smtp mode.
* @var string
*/
var $Sender = "";

/**
* Sets the Subject of the message.
* @var string
*/
var $Subject = "";

/**
* Sets the Body of the message. This can be either an HTML or text body.
* If HTML then run IsHTML(true).
* @var string
*/
var $Body = "";

/**
* Sets the text-only body of the message. This automatically sets the
* email to multipart/alternative. This body can be read by mail
* clients that do not have HTML email capability such as mutt. Clients
* that can read HTML will view the normal Body.
* @var string
*/
var $AltBody = "";

/**
* Sets word wrapping on the body of the message to a given number of
* characters.
* @var int
*/
var $WordWrap = 0;

/**
* Method to send mail: ("mail", "sendmail", or "smtp").
* @var string
*/
var $Mailer = "mail";

/**
* Sets the path of the sendmail program.
* @var string
*/
var $Sendmail = "/usr/sbin/sendmail";

/**
* Path to PHPMailer plugins. This is now only useful if the SMTP class
* is in a different directory than the PHP include path.
* @var string
*/
var $PluginDir = "";

/**
* Holds PHPMailer version.
* @var string
*/
var $Version = "1.73";

/**
* Sets the email address that a reading confirmation will be sent.
* @var string
*/
var $ConfirmReadingTo = "";

/**
* Sets the hostname to use in Message-Id and Received headers
* and as default HELO string. If empty, the value returned
* by SERVER_NAME is used or 'localhost.localdomain'.
* @var string
*/
var $Hostname = "";

/////////////////////////////////////////////////
// SMTP VARIABLES
/////////////////////////////////////////////////

/**
* Sets the SMTP hosts. All hosts must be separated by a
* semicolon. You can also specify a different port
* for each host by using this format: [hostname:port]
* (e.g. "smtp1.example.com:25;smtp2.example.com").
* Hosts will be tried in order.
* @var string
*/
var $Host = "localhost";

/**
* Sets the default SMTP server port.
* @var int
*/
var $Port = 25;

/**
* Sets the SMTP HELO of the message (Default is $Hostname).
* @var string
*/
var $Helo = "";

/**
* Sets SMTP authentication. Utilizes the Username and Password variables.
* @var bool
*/
var $SMTPAuth = false;

/**
* Sets SMTP username.
* @var string
*/
var $Username = "";

/**
* Sets SMTP password.
* @var string
*/
var $Password = "";

/**
* Sets the SMTP server timeout in seconds. This function will not
* work with the win32 version.
* @var int
*/
var $Timeout = 10;

/**
* Sets SMTP class debugging on or off.
* @var bool
*/
var $SMTPDebug = false;

/**
* Prevents the SMTP connection from being closed after each mail
* sending. If this is set to true then to close the connection
* requires an explicit call to SmtpClose().
* @var bool
*/
var $SMTPKeepAlive = false;

/**#@+
* @access private
*/
var $smtp = NULL;
var $to = array();
var $cc = array();
var $bcc = array();
var $ReplyTo = array();
var $attachment = array();
var $CustomHeader = array();
var $message_type = "";
var $boundary = array();
var $language = array();
var $error_count = 0;
var $LE = "\n";
/**#@-*/

/////////////////////////////////////////////////
// VARIABLE METHODS
/////////////////////////////////////////////////

/**
* Sets message type to HTML.
* @param bool $bool
* @return void
*/
function IsHTML($bool) {
if($bool == true)
$this->ContentType = "text/html";
else
$this->ContentType = "text/plain";
}

/**
* Sets Mailer to send message using SMTP.
* @return void
*/
function IsSMTP() {
$this->Mailer = "smtp";
}

/**
* Sets Mailer to send message using PHP mail() function.
* @return void
*/
function IsMail() {
$this->Mailer = "mail";
}

/**
* Sets Mailer to send message using the $Sendmail program.
* @return void
*/
function IsSendmail() {
$this->Mailer = "sendmail";
}

/**
* Sets Mailer to send message using the qmail MTA.
* @return void
*/
function IsQmail() {
$this->Sendmail = "/var/qmail/bin/sendmail";
$this->Mailer = "sendmail";
}


/////////////////////////////////////////////////
// RECIPIENT METHODS
/////////////////////////////////////////////////

/**
* Adds a "To" address.
* @param string $address
* @param string $name
* @return void
*/
function AddAddress($address, $name = "") {
$cur = count($this->to);
$this->to[$cur][0] = trim($address);
$this->to[$cur][1] = $name;
}

/**
* Adds a "Cc" address. Note: this function works
* with the SMTP mailer on win32, not with the "mail"
* mailer.
* @param string $address
* @param string $name
* @return void
*/
function AddCC($address, $name = "") {
$cur = count($this->cc);
$this->cc[$cur][0] = trim($address);
$this->cc[$cur][1] = $name;
}

/**
* Adds a "Bcc" address. Note: this function works
* with the SMTP mailer on win32, not with the "mail"
* mailer.
* @param string $address
* @param string $name
* @return void
*/
function AddBCC($address, $name = "") {
$cur = count($this->bcc);
$this->bcc[$cur][0] = trim($address);
$this->bcc[$cur][1] = $name;
}

/**
* Adds a "Reply-to" address.
* @param string $address
* @param string $name
* @return void
*/
function AddReplyTo($address, $name = "") {
$cur = count($this->ReplyTo);
$this->ReplyTo[$cur][0] = trim($address);
$this->ReplyTo[$cur][1] = $name;
}


/////////////////////////////////////////////////
// MAIL SENDING METHODS
/////////////////////////////////////////////////

/**
* Creates message and assigns Mailer. If the message is
* not sent successfully then it returns false. Use the ErrorInfo
* variable to view description of the error.
* @return bool
*/
function Send() {
$header = "";
$body = "";
$result = true;

if((count($this->to) + count($this->cc) + count($this->bcc)) < 1)
{
$this->SetError($this->Lang("provide_address"));
return false;
}

// Set whether the message is multipart/alternative
if(!empty($this->AltBody))
$this->ContentType = "multipart/alternative";

$this->error_count = 0; // reset errors
$this->SetMessageType();
$header .= $this->CreateHeader();
$body = $this->CreateBody();

if($body == "") { return false; }

// Choose the mailer
switch($this->Mailer)
{
case "sendmail":
$result = $this->SendmailSend($header, $body);
break;
case "mail":
$result = $this->MailSend($header, $body);
break;
case "smtp":
$result = $this->SmtpSend($header, $body);
break;
default:
$this->SetError($this->Mailer . $this->Lang("mailer_not_supported"));
$result = false;
break;
}

return $result;
}

/**
* Sends mail using the $Sendmail program.
* @access private
* @return bool
*/
function SendmailSend($header, $body) {
if ($this->Sender != "")
$sendmail = sprintf("%s -oi -f %s -t", $this->Sendmail, $this->Sender);
else
$sendmail = sprintf("%s -oi -t", $this->Sendmail);

if(!@$mail = popen($sendmail, "w"))
{
$this->SetError($this->Lang("execute") . $this->Sendmail);
return false;
}

fputs($mail, $header);
fputs($mail, $body);

$result = pclose($mail) >> 8 & 0xFF;
if($result != 0)
{
$this->SetError($this->Lang("execute") . $this->Sendmail);
return false;
}

return true;
}

/**
* Sends mail using the PHP mail() function.
* @access private
* @return bool
*/
function MailSend($header, $body) {
$to = "";
for($i = 0; $i < count($this->to); $i++)
{
if($i != 0) { $to .= ", "; }
$to .= $this->to[$i][0];
}

if ($this->Sender != "" && strlen(ini_get("safe_mode"))< 1)
{
$old_from = ini_get("sendmail_from");
ini_set("sendmail_from", $this->Sender);
$params = sprintf("-oi -f %s", $this->Sender);
$rt = @mail($to, $this->EncodeHeader($this->Subject), $body,
$header, $params);
}
else
$rt = @mail($to, $this->EncodeHeader($this->Subject), $body, $header);

if (isset($old_from))
ini_set("sendmail_from", $old_from);

if(!$rt)
{
$this->SetError($this->Lang("instantiate"));
return false;
}

return true;
}

/**
* Sends mail via SMTP using PhpSMTP (Author:
* Chris Ryan). Returns bool. Returns false if there is a
* bad MAIL FROM, RCPT, or DATA input.
* @access private
* @return bool
*/
function SmtpSend($header, $body) {
include_once($this->PluginDir . "class.smtp.php");
$error = "";
$bad_rcpt = array();

if(!$this->SmtpConnect())
return false;

$smtp_from = ($this->Sender == "") ? $this->From : $this->Sender;
if(!$this->smtp->Mail($smtp_from))
{
$error = $this->Lang("from_failed") . $smtp_from;
$this->SetError($error);
$this->smtp->Reset();
return false;
}

// Attempt to send attach all recipients
for($i = 0; $i < count($this->to); $i++)
{
if(!$this->smtp->Recipient($this->to[$i][0]))
$bad_rcpt[] = $this->to[$i][0];
}
for($i = 0; $i < count($this->cc); $i++)
{
if(!$this->smtp->Recipient($this->cc[$i][0]))
$bad_rcpt[] = $this->cc[$i][0];
}
for($i = 0; $i < count($this->bcc); $i++)
{
if(!$this->smtp->Recipient($this->bcc[$i][0]))
$bad_rcpt[] = $this->bcc[$i][0];
}

if(count($bad_rcpt) > 0) // Create error message
{
for($i = 0; $i < count($bad_rcpt); $i++)
{
if($i != 0) { $error .= ", "; }
$error .= $bad_rcpt[$i];
}
$error = $this->Lang("recipients_failed") . $error;
$this->SetError($error);
$this->smtp->Reset();
return false;
}

if(!$this->smtp->Data($header . $body))
{
$this->SetError($this->Lang("data_not_accepted"));
$this->smtp->Reset();
return false;
}
if($this->SMTPKeepAlive == true)
$this->smtp->Reset();
else
$this->SmtpClose();

return true;
}

/**
* Initiates a connection to an SMTP server. Returns false if the
* operation failed.
* @access private
* @return bool
*/
function SmtpConnect() {
if($this->smtp == NULL) { $this->smtp = new SMTP(); }

$this->smtp->do_debug = $this->SMTPDebug;
$hosts = explode(";", $this->Host);
$index = 0;
$connection = ($this->smtp->Connected());

// Retry while there is no connection
while($index < count($hosts) && $connection == false)
{
if(strstr($hosts[$index], ":"))
list($host, $port) = explode(":", $hosts[$index]);
else
{
$host = $hosts[$index];
$port = $this->Port;
}

if($this->smtp->Connect($host, $port, $this->Timeout))
{
if ($this->Helo != '')
$this->smtp->Hello($this->Helo);
else
$this->smtp->Hello($this->ServerHostname());

if($this->SMTPAuth)
{
if(!$this->smtp->Authenticate($this->Username,
$this->Password))
{
$this->SetError($this->Lang("authenticate"));
$this->smtp->Reset();
$connection = false;
}
}
$connection = true;
}
$index++;
}
if(!$connection)
$this->SetError($this->Lang("connect_host"));

return $connection;
}

/**
* Closes the active SMTP session if one exists.
* @return void
*/
function SmtpClose() {
if($this->smtp != NULL)
{
if($this->smtp->Connected())
{
$this->smtp->Quit();
$this->smtp->Close();
}
}
}

/**
* Sets the language for all class error messages. Returns false
* if it cannot load the language file. The default language type
* is English.
* @param string $lang_type Type of language (e.g. Portuguese: "br")
* @param string $lang_path Path to the language file directory
* @access public
* @return bool
*/
function SetLanguage($lang_type, $lang_path = "include/system/classes/language/") {
if(file_exists($lang_path.'phpmailer.lang-'.$lang_type.'.php')) {
include($lang_path.'phpmailer.lang-'.$lang_type.'.php');
} else if(file_exists($lang_path.'phpmailer.lang-en.php')) {
include($lang_path.'phpmailer.lang-en.php');
} else
{
$this->SetError("Could not load language file");
return false;
}

$this->language = $PHPMAILER_LANG;

return true;
}

/////////////////////////////////////////////////
// MESSAGE CREATION METHODS
/////////////////////////////////////////////////

/**
* Creates recipient headers.
* @access private
* @return string
*/
function AddrAppend($type, $addr) {
$addr_str = $type . ": ";
$addr_str .= $this->AddrFormat($addr[0]);
if(count($addr) > 1)
{
for($i = 1; $i < count($addr); $i++)
$addr_str .= ", " . $this->AddrFormat($addr[$i]);
}
$addr_str .= $this->LE;

return $addr_str;
}

/**
* Formats an address correctly.
* @access private
* @return string
*/
function AddrFormat($addr) {
if(empty($addr[1]))
$formatted = $addr[0];
else
{
$formatted = $this->EncodeHeader($addr[1], 'phrase') . " <" .
$addr[0] . ">";
}

return $formatted;
}

/**
* Wraps message for use with mailers that do not
* automatically perform wrapping and for quoted-printable.
* Original written by philippe.
* @access private
* @return string
*/
function WrapText($message, $length, $qp_mode = false) {
$soft_break = ($qp_mode) ? sprintf(" =%s", $this->LE) : $this->LE;

$message = $this->FixEOL($message);
if (substr($message, -1) == $this->LE)
$message = substr($message, 0, -1);

$line = explode($this->LE, $message);
$message = "";
for ($i=0 ;$i < count($line); $i++)
{
$line_part = explode(" ", $line[$i]);
$buf = "";
for ($e = 0; $e {
$word = $line_part[$e];
if ($qp_mode and (strlen($word) > $length))
{
$space_left = $length - strlen($buf) - 1;
if ($e != 0)
{
if ($space_left > 20)
{
$len = $space_left;
if (substr($word, $len - 1, 1) == "=")
$len--;
elseif (substr($word, $len - 2, 1) == "=")
$len -= 2;
$part = substr($word, 0, $len);
$word = substr($word, $len);
$buf .= " " . $part;
$message .= $buf . sprintf("=%s", $this->LE);
}
else
{
$message .= $buf . $soft_break;
}
$buf = "";
}
while (strlen($word) > 0)
{
$len = $length;
if (substr($word, $len - 1, 1) == "=")
$len--;
elseif (substr($word, $len - 2, 1) == "=")
$len -= 2;
$part = substr($word, 0, $len);
$word = substr($word, $len);

if (strlen($word) > 0)
$message .= $part . sprintf("=%s", $this->LE);
else
$buf = $part;
}
}
else
{
$buf_o = $buf;
$buf .= ($e == 0) ? $word : (" " . $word);

if (strlen($buf) > $length and $buf_o != "")
{
$message .= $buf_o . $soft_break;
$buf = $word;
}
}
}
$message .= $buf . $this->LE;
}

return $message;
}

/**
* Set the body wrapping.
* @access private
* @return void
*/
function SetWordWrap() {
if($this->WordWrap < 1)
return;

switch($this->message_type)
{
case "alt":
// fall through
case "alt_attachments":
$this->AltBody = $this->WrapText($this->AltBody, $this->WordWrap);
break;
default:
$this->Body = $this->WrapText($this->Body, $this->WordWrap);
break;
}
}

/**
* Assembles message header.
* @access private
* @return string
*/
function CreateHeader() {
$result = "";

// Set the boundaries
$uniq_id = md5(uniqid(time()));
$this->boundary[1] = "b1_" . $uniq_id;
$this->boundary[2] = "b2_" . $uniq_id;

$result .= $this->HeaderLine("Date", $this->RFCDate());
if($this->Sender == "")
$result .= $this->HeaderLine("Return-Path", trim($this->From));
else
$result .= $this->HeaderLine("Return-Path", trim($this->Sender));

// To be created automatically by mail()
if($this->Mailer != "mail")
{
if(count($this->to) > 0)
$result .= $this->AddrAppend("To", $this->to);
else if (count($this->cc) == 0)
$result .= $this->HeaderLine("To", "undisclosed-recipients:;");
if(count($this->cc) > 0)
$result .= $this->AddrAppend("Cc", $this->cc);
}

$from = array();
$from[0][0] = trim($this->From);
$from[0][1] = $this->FromName;
$result .= $this->AddrAppend("From", $from);

// sendmail and mail() extract Bcc from the header before sending
if((($this->Mailer == "sendmail") || ($this->Mailer == "mail")) && (count($this->bcc) > 0))
$result .= $this->AddrAppend("Bcc", $this->bcc);

if(count($this->ReplyTo) > 0)
$result .= $this->AddrAppend("Reply-to", $this->ReplyTo);

// mail() sets the subject itself
if($this->Mailer != "mail")
$result .= $this->HeaderLine("Subject", $this->EncodeHeader(trim($this->Subject)));

$result .= sprintf("Message-ID: <%s@%s>%s", $uniq_id, $this->ServerHostname(), $this->LE);
$result .= $this->HeaderLine("X-Priority", $this->Priority);
$result .= $this->HeaderLine("X-Mailer", "PHPMailer [version " . $this->Version . "]");

if($this->ConfirmReadingTo != "")
{
$result .= $this->HeaderLine("Disposition-Notification-To",
"<" . trim($this->ConfirmReadingTo) . ">");
}

// Add custom headers
for($index = 0; $index < count($this->CustomHeader); $index++)
{
$result .= $this->HeaderLine(trim($this->CustomHeader[$index][0]),
$this->EncodeHeader(trim($this->CustomHeader[$index][1])));
}
$result .= $this->HeaderLine("MIME-Version", "1.0");

switch($this->message_type)
{
case "plain":
$result .= $this->HeaderLine("Content-Transfer-Encoding", $this->Encoding);
$result .= sprintf("Content-Type: %s; charset=\"%s\"",
$this->ContentType, $this->CharSet);
break;
case "attachments":
// fall through
case "alt_attachments":
if($this->InlineImageExists())
{
$result .= sprintf("Content-Type: %s;%s\ttype=\"text/html\";%s\tboundary=\"%s\"%s",
"multipart/related", $this->LE, $this->LE,
$this->boundary[1], $this->LE);
}
else
{
$result .= $this->HeaderLine("Content-Type", "multipart/mixed;");
$result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
}
break;
case "alt":
$result .= $this->HeaderLine("Content-Type", "multipart/alternative;");
$result .= $this->TextLine("\tboundary=\"" . $this->boundary[1] . '"');
break;
}

if($this->Mailer != "mail")
$result .= $this->LE.$this->LE;

return $result;
}

/**
* Assembles the message body. Returns an empty string on failure.
* @access private
* @return string
*/
function CreateBody() {
$result = "";

$this->SetWordWrap();

switch($this->message_type)
{
case "alt":
$result .= $this->GetBoundary($this->boundary[1], "",
"text/plain", "");
$result .= $this->EncodeString($this->AltBody, $this->Encoding);
$result .= $this->LE.$this->LE;
$result .= $this->GetBoundary($this->boundary[1], "",
"text/html", "");

$result .= $this->EncodeString($this->Body, $this->Encoding);
$result .= $this->LE.$this->LE;

$result .= $this->EndBoundary($this->boundary[1]);
break;
case "plain":
$result .= $this->EncodeString($this->Body, $this->Encoding);
break;
case "attachments":
$result .= $this->GetBoundary($this->boundary[1], "", "", "");
$result .= $this->EncodeString($this->Body, $this->Encoding);
$result .= $this->LE;

$result .= $this->AttachAll();
break;
case "alt_attachments":
$result .= sprintf("--%s%s", $this->boundary[1], $this->LE);
$result .= sprintf("Content-Type: %s;%s" .
"\tboundary=\"%s\"%s",
"multipart/alternative", $this->LE,
$this->boundary[2], $this->LE.$this->LE);

// Create text body
$result .= $this->GetBoundary($this->boundary[2], "",
"text/plain", "") . $this->LE;

$result .= $this->EncodeString($this->AltBody, $this->Encoding);
$result .= $this->LE.$this->LE;

// Create the HTML body
$result .= $this->GetBoundary($this->boundary[2], "",
"text/html", "") . $this->LE;

$result .= $this->EncodeString($this->Body, $this->Encoding);
$result .= $this->LE.$this->LE;

$result .= $this->EndBoundary($this->boundary[2]);

$result .= $this->AttachAll();
break;
}
if($this->IsError())
$result = "";

return $result;
}

/**
* Returns the start of a message boundary.
* @access private
*/
function GetBoundary($boundary, $charSet, $contentType, $encoding) {
$result = "";
if($charSet == "") { $charSet = $this->CharSet; }
if($contentType == "") { $contentType = $this->ContentType; }
if($encoding == "") { $encoding = $this->Encoding; }

$result .= $this->TextLine("--" . $boundary);
$result .= sprintf("Content-Type: %s; charset = \"%s\"",
$contentType, $charSet);
$result .= $this->LE;
$result .= $this->HeaderLine("Content-Transfer-Encoding", $encoding);
$result .= $this->LE;

return $result;
}

/**
* Returns the end of a message boundary.
* @access private
*/
function EndBoundary($boundary) {
return $this->LE . "--" . $boundary . "--" . $this->LE;
}

/**
* Sets the message type.
* @access private
* @return void
*/
function SetMessageType() {
if(count($this->attachment) < 1 && strlen($this->AltBody) < 1)
$this->message_type = "plain";
else
{
if(count($this->attachment) > 0)
$this->message_type = "attachments";
if(strlen($this->AltBody) > 0 && count($this->attachment) < 1)
$this->message_type = "alt";
if(strlen($this->AltBody) > 0 && count($this->attachment) > 0)
$this->message_type = "alt_attachments";
}
}

/**
* Returns a formatted header line.
* @access private
* @return string
*/
function HeaderLine($name, $value) {
return $name . ": " . $value . $this->LE;
}

/**
* Returns a formatted mail line.
* @access private
* @return string
*/
function TextLine($value) {
return $value . $this->LE;
}

/////////////////////////////////////////////////
// ATTACHMENT METHODS
/////////////////////////////////////////////////

/**
* Adds an attachment from a path on the filesystem.
* Returns false if the file could not be found
* or accessed.
* @param string $path Path to the attachment.
* @param string $name Overrides the attachment name.
* @param string $encoding File encoding (see $Encoding).
* @param string $type File extension (MIME) type.
* @return bool
*/
function AddAttachment($path, $name = "", $encoding = "base64",
$type = "application/octet-stream") {
if(!@is_file($path))
{
$this->SetError($this->Lang("file_access") . $path);
return false;
}

$filename = basename($path);
if($name == "")
$name = $filename;

$cur = count($this->attachment);
$this->attachment[$cur][0] = $path;
$this->attachment[$cur][1] = $filename;
$this->attachment[$cur][2] = $name;
$this->attachment[$cur][3] = $encoding;
$this->attachment[$cur][4] = $type;
$this->attachment[$cur][5] = false; // isStringAttachment
$this->attachment[$cur][6] = "attachment";
$this->attachment[$cur][7] = 0;

return true;
}

/**
* Attaches all fs, string, and binary attachments to the message.
* Returns an empty string on failure.
* @access private
* @return string
*/
function AttachAll() {
// Return text of body
$mime = array();

// Add all attachments
for($i = 0; $i < count($this->attachment); $i++)
{
// Check for string attachment
$bString = $this->attachment[$i][5];
if ($bString)
$string = $this->attachment[$i][0];
else
$path = $this->attachment[$i][0];

$filename = $this->attachment[$i][1];
$name = $this->attachment[$i][2];
$encoding = $this->attachment[$i][3];
$type = $this->attachment[$i][4];
$disposition = $this->attachment[$i][6];
$cid = $this->attachment[$i][7];

$mime[] = sprintf("--%s%s", $this->boundary[1], $this->LE);
$mime[] = sprintf("Content-Type: %s; name=\"%s\"%s", $type, $name, $this->LE);
$mime[] = sprintf("Content-Transfer-Encoding: %s%s", $encoding, $this->LE);

if($disposition == "inline")
$mime[] = sprintf("Content-ID: <%s>%s", $cid, $this->LE);

$mime[] = sprintf("Content-Disposition: %s; filename=\"%s\"%s",
$disposition, $name, $this->LE.$this->LE);

// Encode as string attachment
if($bString)
{
$mime[] = $this->EncodeString($string, $encoding);
if($this->IsError()) { return ""; }
$mime[] = $this->LE.$this->LE;
}
else
{
$mime[] = $this->EncodeFile($path, $encoding);
if($this->IsError()) { return ""; }
$mime[] = $this->LE.$this->LE;
}
}

$mime[] = sprintf("--%s--%s", $this->boundary[1], $this->LE);

return join("", $mime);
}

/**
* Encodes attachment in requested format. Returns an
* empty string on failure.
* @access private
* @return string
*/
function EncodeFile ($path, $encoding = "base64") {
if(!@$fd = fopen($path, "rb"))
{
$this->SetError($this->Lang("file_open") . $path);
return "";
}
$magic_quotes = get_magic_quotes_runtime();
set_magic_quotes_runtime(0);
$file_buffer = fread($fd, filesize($path));
$file_buffer = $this->EncodeString($file_buffer, $encoding);
fclose($fd);
set_magic_quotes_runtime($magic_quotes);

return $file_buffer;
}

/**
* Encodes string to requested format. Returns an
* empty string on failure.
* @access private
* @return string
*/
function EncodeString ($str, $encoding = "base64") {
$encoded = "";
switch(strtolower($encoding)) {
case "base64":
// chunk_split is found in PHP >= 3.0.6
$encoded = chunk_split(base64_encode($str), 76, $this->LE);
break;
case "7bit":
case "8bit":
$encoded = $this->FixEOL($str);
if (substr($encoded, -(strlen($this->LE))) != $this->LE)
$encoded .= $this->LE;
break;
case "binary":
$encoded = $str;
break;
case "quoted-printable":
$encoded = $this->EncodeQP($str);
break;
default:
$this->SetError($this->Lang("encoding") . $encoding);
break;
}
return $encoded;
}

/**
* Encode a header string to best of Q, B, quoted or none.
* @access private
* @return string
*/
function EncodeHeader ($str, $position = 'text') {
$x = 0;

switch (strtolower($position)) {
case 'phrase':
if (!preg_match('/[\200-\377]/', $str)) {
// Can't use addslashes as we don't know what value has magic_quotes_sybase.
$encoded = addcslashes($str, "\0..\37\177\\\"");

if (($str == $encoded) && !preg_match('/[^A-Za-z0-9!#$%&\'*+\/=?^_`{|}~ -]/', $str))
return ($encoded);
else
return ("\"$encoded\"");
}
$x = preg_match_all('/[^\040\041\043-\133\135-\176]/', $str, $matches);
break;
case 'comment':
$x = preg_match_all('/[()"]/', $str, $matches);
// Fall-through
case 'text':
default:
$x += preg_match_all('/[\000-\010\013\014\016-\037\177-\377]/', $str, $matches);
break;
}

if ($x == 0)
return ($str);

$maxlen = 75 - 7 - strlen($this->CharSet);
// Try to select the encoding which should produce the shortest output
if (strlen($str)/3 < $x) {
$encoding = 'B';
$encoded = base64_encode($str);
$maxlen -= $maxlen % 4;
$encoded = trim(chunk_split($encoded, $maxlen, "\n"));
} else {
$encoding = 'Q';
$encoded = $this->EncodeQ($str, $position);
$encoded = $this->WrapText($encoded, $maxlen, true);
$encoded = str_replace("=".$this->LE, "\n", trim($encoded));
}

$encoded = preg_replace('/^(.*)$/m', " =?".$this->CharSet."?$encoding?\\1?=", $encoded);
$encoded = trim(str_replace("\n", $this->LE, $encoded));

return $encoded;
}

/**
* Encode string to quoted-printable.
* @access private
* @return string
*/
function EncodeQP ($str) {
$encoded = $this->FixEOL($str);
if (substr($encoded, -(strlen($this->LE))) != $this->LE)
$encoded .= $this->LE;

// Replace every high ascii, control and = characters
$encoded = preg_replace('/([\000-\010\013\014\016-\037\075\177-\377])/e',
"'='.sprintf('%02X', ord('\\1'))", $encoded);
// Replace every spaces and tabs when it's the last character on a line
$encoded = preg_replace("/([\011\040])".$this->LE."/e",
"'='.sprintf('%02X', ord('\\1')).'".$this->LE."'", $encoded);

// Maximum line length of 76 characters before CRLF (74 + space + '=')
$encoded = $this->WrapText($encoded, 74, true);

return $encoded;
}

/**
* Encode string to q encoding.
* @access private
* @return string
*/
function EncodeQ ($str, $position = "text") {
// There should not be any EOL in the string
$encoded = preg_replace("[\r\n]", "", $str);

switch (strtolower($position)) {
case "phrase":
$encoded = preg_replace("/([^A-Za-z0-9!*+\/ -])/e", "'='.sprintf('%02X', ord('\\1'))", $encoded);
break;
case "comment":
$encoded = preg_replace("/([\(\)\"])/e", "'='.sprintf('%02X', ord('\\1'))", $encoded);
case "text":
default:
// Replace every high ascii, control =, ? and _ characters
$encoded = preg_replace('/([\000-\011\013\014\016-\037\075\077\137\177-\377])/e',
"'='.sprintf('%02X', ord('\\1'))", $encoded);
break;
}

// Replace every spaces to _ (more readable than =20)
$encoded = str_replace(" ", "_", $encoded);

return $encoded;
}

/**
* Adds a string or binary attachment (non-filesystem) to the list.
* This method can be used to attach ascii or binary data,
* such as a BLOB record from a database.
* @param string $string String attachment data.
* @param string $filename Name of the attachment.
* @param string $encoding File encoding (see $Encoding).
* @param string $type File extension (MIME) type.
* @return void
*/
function AddStringAttachment($string, $filename, $encoding = "base64",
$type = "application/octet-stream") {
// Append to $attachment array
$cur = count($this->attachment);
$this->attachment[$cur][0] = $string;
$this->attachment[$cur][1] = $filename;
$this->attachment[$cur][2] = $filename;
$this->attachment[$cur][3] = $encoding;
$this->attachment[$cur][4] = $type;
$this->attachment[$cur][5] = true; // isString
$this->attachment[$cur][6] = "attachment";
$this->attachment[$cur][7] = 0;
}

/**
* Adds an embedded attachment. This can include images, sounds, and
* just about any other document. Make sure to set the $type to an
* image type. For JPEG images use "image/jpeg" and for GIF images
* use "image/gif".
* @param string $path Path to the attachment.
* @param string $cid Content ID of the attachment. Use this to identify
* the Id for accessing the image in an HTML form.
* @param string $name Overrides the attachment name.
* @param string $encoding File encoding (see $Encoding).
* @param string $type File extension (MIME) type.
* @return bool
*/
function AddEmbeddedImage($path, $cid, $name = "", $encoding = "base64",
$type = "application/octet-stream") {

if(!@is_file($path))
{
$this->SetError($this->Lang("file_access") . $path);
return false;
}

$filename = basename($path);
if($name == "")
$name = $filename;

// Append to $attachment array
$cur = count($this->attachment);
$this->attachment[$cur][0] = $path;
$this->attachment[$cur][1] = $filename;
$this->attachment[$cur][2] = $name;
$this->attachment[$cur][3] = $encoding;
$this->attachment[$cur][4] = $type;
$this->attachment[$cur][5] = false; // isStringAttachment
$this->attachment[$cur][6] = "inline";
$this->attachment[$cur][7] = $cid;

return true;
}

/**
* Returns true if an inline attachment is present.
* @access private
* @return bool
*/
function InlineImageExists() {
$result = false;
for($i = 0; $i < count($this->attachment); $i++)
{
if($this->attachment[$i][6] == "inline")
{
$result = true;
break;
}
}

return $result;
}

/////////////////////////////////////////////////
// MESSAGE RESET METHODS
/////////////////////////////////////////////////

/**
* Clears all recipients assigned in the TO array. Returns void.
* @return void
*/
function ClearAddresses() {
$this->to = array();
}

/**
* Clears all recipients assigned in the CC array. Returns void.
* @return void
*/
function ClearCCs() {
$this->cc = array();
}

/**
* Clears all recipients assigned in the BCC array. Returns void.
* @return void
*/
function ClearBCCs() {
$this->bcc = array();
}

/**
* Clears all recipients assigned in the ReplyTo array. Returns void.
* @return void
*/
function ClearReplyTos() {
$this->ReplyTo = array();
}

/**
* Clears all recipients assigned in the TO, CC and BCC
* array. Returns void.
* @return void
*/
function ClearAllRecipients() {
$this->to = array();
$this->cc = array();
$this->bcc = array();
}

/**
* Clears all previously set filesystem, string, and binary
* attachments. Returns void.
* @return void
*/
function ClearAttachments() {
$this->attachment = array();
}

/**
* Clears all custom headers. Returns void.
* @return void
*/
function ClearCustomHeaders() {
$this->CustomHeader = array();
}


/////////////////////////////////////////////////
// MISCELLANEOUS METHODS
/////////////////////////////////////////////////

/**
* Adds the error message to the error container.
* Returns void.
* @access private
* @return void
*/
function SetError($msg) {
$this->error_count++;
$this->ErrorInfo = $msg;
}

/**
* Returns the proper RFC 822 formatted date.
* @access private
* @return string
*/
function RFCDate() {
$tz = date("Z");
$tzs = ($tz < 0) ? "-" : "+";
$tz = abs($tz);
$tz = ($tz/3600)*100 + ($tz%3600)/60;
$result = sprintf("%s %s%04d", date("D, j M Y H:i:s"), $tzs, $tz);

return $result;
}

/**
* Returns the appropriate server variable. Should work with both
* PHP 4.1.0+ as well as older versions. Returns an empty string
* if nothing is found.
* @access private
* @return mixed
*/
function ServerVar($varName) {
global $HTTP_SERVER_VARS;
global $HTTP_ENV_VARS;

if(!isset($_SERVER))
{
$_SERVER = $HTTP_SERVER_VARS;
if(!isset($_SERVER["REMOTE_ADDR"]))
$_SERVER = $HTTP_ENV_VARS; // must be Apache
}

if(isset($_SERVER[$varName]))
return $_SERVER[$varName];
else
return "";
}

/**
* Returns the server hostname or 'localhost.localdomain' if unknown.
* @access private
* @return string
*/
function ServerHostname() {
if ($this->Hostname != "")
$result = $this->Hostname;
elseif ($this->ServerVar('SERVER_NAME') != "")
$result = $this->ServerVar('SERVER_NAME');
else
$result = "localhost.localdomain";

return $result;
}

/**
* Returns a message in the appropriate language.
* @access private
* @return string
*/
function Lang($key) {
if(count($this->language) < 1)
$this->SetLanguage("en"); // set the default language

if(isset($this->language[$key]))
return $this->language[$key];
else
return "Language string failed to load: " . $key;
}

/**
* Returns true if an error occurred.
* @return bool
*/
function IsError() {
return ($this->error_count > 0);
}

/**
* Changes every end of line from CR or LF to CRLF.
* @access private
* @return string
*/
function FixEOL($str) {
$str = str_replace("\r\n", "\n", $str);
$str = str_replace("\r", "\n", $str);
$str = str_replace("\n", $this->LE, $str);
return $str;
}

/**
* Adds a custom header.
* @return void
*/
function AddCustomHeader($custom_header) {
$this->CustomHeader[] = explode(":", $custom_header, 2);
}
}

?>
class.smtp.php source (modified for gmail):
////////////////////////////////////////////////////
// SMTP - PHP SMTP class
//
// Version 1.02
//
// Define an SMTP class that can be used to connect
// and communicate with any SMTP server. It implements
// all the SMTP functions defined in RFC821 except TURN.
//
// Author: Chris Ryan
//
// License: LGPL, see LICENSE
////////////////////////////////////////////////////

/**
* SMTP is rfc 821 compliant and implements all the rfc 821 SMTP
* commands except TURN which will always return a not implemented
* error. SMTP also provides some utility methods for sending mail
* to an SMTP server.
* @package PHPMailer
* @author Chris Ryan
*/
class SMTP
{
/**
* SMTP server port
* @var int
*/
var $SMTP_PORT = 25;

/**
* SMTP reply line ending
* @var string
*/
var $CRLF = "\r\n";

/**
* Sets whether debugging is turned on
* @var bool
*/
var $do_debug; # the level of debug to perform

/**#@+
* @access private
*/
var $smtp_conn; # the socket to the server
var $error; # error if any on the last call
var $helo_rply; # the reply the server sent to us for HELO
/**#@-*/

/**
* Initialize the class so that the data is in a known state.
* @access public
* @return void
*/
function SMTP() {
$this->smtp_conn = 0;
$this->error = null;
$this->helo_rply = null;

$this->do_debug = 0;
}

/*************************************************************
* CONNECTION FUNCTIONS *
***********************************************************/

/**
* Connect to the server specified on the port specified.
* If the port is not specified use the default SMTP_PORT.
* If tval is specified then a connection will try and be
* established with the server for that number of seconds.
* If tval is not specified the default is 30 seconds to
* try on the connection.
*
* SMTP CODE SUCCESS: 220
* SMTP CODE FAILURE: 421
* @access public
* @return bool
*/
function Connect($host,$port=0,$tval=30) {
# set the error val to null so there is no confusion
$this->error = null;

# make sure we are __not__ connected
if($this->connected()) {
# ok we are connected! what should we do?
# for now we will just give an error saying we
# are already connected
$this->error =
array("error" => "Already connected to a server");
return false;
}

if(empty($port)) {
$port = $this->SMTP_PORT;
}

// fsockopen -- Open Internet or Unix domain socket connection
// As of PHP 4.3.0, if you have compiled in OpenSSL support, you may prefix the hostname with either 'ssl://' or 'tls://' to use an SSL or TLS client connection over TCP/IP to connect to the remote host.
if ($host == "smtp.gmail.com") {
$host = "ssl://smtp.gmail.com";
$port = 465;
}

#connect to the smtp server
$this->smtp_conn = fsockopen($host, # the host of the server
$port, # the port to use
$errno, # error number if any
$errstr, # error message if any
$tval); # give up after ? secs
# verify we connected properly
if(empty($this->smtp_conn)) {
$this->error = array("error" => "Failed to connect to server",
"errno" => $errno,
"errstr" => $errstr);
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": $errstr ($errno)" . $this->CRLF;
}
return false;
}

# sometimes the SMTP server takes a little longer to respond
# so we will give it a longer timeout for the first read
// Windows still does not have support for this timeout function
if(substr(PHP_OS, 0, 3) != "WIN")
socket_set_timeout($this->smtp_conn, $tval, 0);

# get any announcement stuff
$announce = $this->get_lines();

# set the timeout of any socket functions at 1/10 of a second
//if(function_exists("socket_set_timeout"))
// socket_set_timeout($this->smtp_conn, 0, 100000);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $announce;
}

return true;
}

/**
* Performs SMTP authentication. Must be run after running the
* Hello() method. Returns true if successfully authenticated.
* @access public
* @return bool
*/
function Authenticate($username, $password) {
// Start authentication
fputs($this->smtp_conn,"AUTH LOGIN" . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($code != 334) {
$this->error =
array("error" => "AUTH not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

// Send encoded username
fputs($this->smtp_conn, base64_encode($username) . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($code != 334) {
$this->error =
array("error" => "Username not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

// Send encoded password
fputs($this->smtp_conn, base64_encode($password) . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($code != 235) {
$this->error =
array("error" => "Password not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

return true;
}

/**
* Returns true if connected to a server otherwise false
* @access private
* @return bool
*/
function Connected() {
if(!empty($this->smtp_conn)) {
$sock_status = socket_get_status($this->smtp_conn);
if($sock_status["eof"]) {
# hmm this is an odd situation... the socket is
# valid but we aren't connected anymore
if($this->do_debug >= 1) {
echo "SMTP -> NOTICE:" . $this->CRLF .
"EOF caught while checking if connected";
}
$this->Close();
return false;
}
return true; # everything looks good
}
return false;
}

/**
* Closes the socket and cleans up the state of the class.
* It is not considered good to use this function without
* first trying to use QUIT.
* @access public
* @return void
*/
function Close() {
$this->error = null; # so there is no confusion
$this->helo_rply = null;
if(!empty($this->smtp_conn)) {
# close the connection and cleanup
fclose($this->smtp_conn);
$this->smtp_conn = 0;
}
}


/***************************************************************
* SMTP COMMANDS *
*************************************************************/

/**
* Issues a data command and sends the msg_data to the server
* finializing the mail transaction. $msg_data is the message
* that is to be send with the headers. Each header needs to be
* on a single line followed by a with the message headers
* and the message body being seperated by and additional .
*
* Implements rfc 821: DATA
*
* SMTP CODE INTERMEDIATE: 354
* [data]
* .
* SMTP CODE SUCCESS: 250
* SMTP CODE FAILURE: 552,554,451,452
* SMTP CODE FAILURE: 451,554
* SMTP CODE ERROR : 500,501,503,421
* @access public
* @return bool
*/
function Data($msg_data) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Data() without being connected");
return false;
}

fputs($this->smtp_conn,"DATA" . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 354) {
$this->error =
array("error" => "DATA command not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

# the server is ready to accept data!
# according to rfc 821 we should not send more than 1000
# including the CRLF
# characters on a single line so we will break the data up
# into lines by \r and/or \n then if needed we will break
# each of those into smaller lines to fit within the limit.
# in addition we will be looking for lines that start with
# a period '.' and append and additional period '.' to that
# line. NOTE: this does not count towards are limit.

# normalize the line breaks so we know the explode works
$msg_data = str_replace("\r\n","\n",$msg_data);
$msg_data = str_replace("\r","\n",$msg_data);
$lines = explode("\n",$msg_data);

# we need to find a good way to determine is headers are
# in the msg_data or if it is a straight msg body
# currently I'm assuming rfc 822 definitions of msg headers
# and if the first field of the first line (':' sperated)
# does not contain a space then it _should_ be a header
# and we can process all lines before a blank "" line as
# headers.
$field = substr($lines[0],0,strpos($lines[0],":"));
$in_headers = false;
if(!empty($field) && !strstr($field," ")) {
$in_headers = true;
}

$max_line_length = 998; # used below; set here for ease in change

while(list(,$line) = @each($lines)) {
$lines_out = null;
if($line == "" && $in_headers) {
$in_headers = false;
}
# ok we need to break this line up into several
# smaller lines
while(strlen($line) > $max_line_length) {
$pos = strrpos(substr($line,0,$max_line_length)," ");

# Patch to fix DOS attack
if(!$pos) {
$pos = $max_line_length - 1;
}

$lines_out[] = substr($line,0,$pos);
$line = substr($line,$pos + 1);
# if we are processing headers we need to
# add a LWSP-char to the front of the new line
# rfc 822 on long msg headers
if($in_headers) {
$line = "\t" . $line;
}
}
$lines_out[] = $line;

# now send the lines to the server
while(list(,$line_out) = @each($lines_out)) {
if(strlen($line_out) > 0)
{
if(substr($line_out, 0, 1) == ".") {
$line_out = "." . $line_out;
}
}
fputs($this->smtp_conn,$line_out . $this->CRLF);
}
}

# ok all the message data has been sent so lets get this
# over with aleady
fputs($this->smtp_conn, $this->CRLF . "." . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "DATA not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return true;
}

/**
* Expand takes the name and asks the server to list all the
* people who are members of the _list_. Expand will return
* back and array of the result or false if an error occurs.
* Each value in the array returned has the format of:
* [ ]
* The definition of is defined in rfc 821
*
* Implements rfc 821: EXPN
*
* SMTP CODE SUCCESS: 250
* SMTP CODE FAILURE: 550
* SMTP CODE ERROR : 500,501,502,504,421
* @access public
* @return string array
*/
function Expand($name) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Expand() without being connected");
return false;
}

fputs($this->smtp_conn,"EXPN " . $name . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "EXPN not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

# parse the reply and place in our array to return to user
$entries = explode($this->CRLF,$rply);
while(list(,$l) = @each($entries)) {
$list[] = substr($l,4);
}

return $list;
}

/**
* Sends the HELO command to the smtp server.
* This makes sure that we and the server are in
* the same known state.
*
* Implements from rfc 821: HELO
*
* SMTP CODE SUCCESS: 250
* SMTP CODE ERROR : 500, 501, 504, 421
* @access public
* @return bool
*/
function Hello($host="") {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Hello() without being connected");
return false;
}

# if a hostname for the HELO wasn't specified determine
# a suitable one to send
if(empty($host)) {
# we need to determine some sort of appopiate default
# to send to the server
$host = "localhost";
}

// Send extended hello first (RFC 2821)
if(!$this->SendHello("EHLO", $host))
{
if(!$this->SendHello("HELO", $host))
return false;
}

return true;
}

/**
* Sends a HELO/EHLO command.
* @access private
* @return bool
*/
function SendHello($hello, $host) {
fputs($this->smtp_conn, $hello . " " . $host . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER: " . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => $hello . " not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

$this->helo_rply = $rply;

return true;
}

/**
* Gets help information on the keyword specified. If the keyword
* is not specified then returns generic help, ussually contianing
* A list of keywords that help is available on. This function
* returns the results back to the user. It is up to the user to
* handle the returned data. If an error occurs then false is
* returned with $this->error set appropiately.
*
* Implements rfc 821: HELP [ ]
*
* SMTP CODE SUCCESS: 211,214
* SMTP CODE ERROR : 500,501,502,504,421
* @access public
* @return string
*/
function Help($keyword="") {
$this->error = null; # to avoid confusion

if(!$this->connected()) {
$this->error = array(
"error" => "Called Help() without being connected");
return false;
}

$extra = "";
if(!empty($keyword)) {
$extra = " " . $keyword;
}

fputs($this->smtp_conn,"HELP" . $extra . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 211 && $code != 214) {
$this->error =
array("error" => "HELP not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

return $rply;
}

/**
* Starts a mail transaction from the email address specified in
* $from. Returns true if successful or false otherwise. If True
* the mail transaction is started and then one or more Recipient
* commands may be called followed by a Data command.
*
* Implements rfc 821: MAIL FROM:
*
* SMTP CODE SUCCESS: 250
* SMTP CODE SUCCESS: 552,451,452
* SMTP CODE SUCCESS: 500,501,421
* @access public
* @return bool
*/
function Mail($from) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Mail() without being connected");
return false;
}

fputs($this->smtp_conn,"MAIL FROM:<" . $from . ">" . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "MAIL not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return true;
}

/**
* Sends the command NOOP to the SMTP server.
*
* Implements from rfc 821: NOOP
*
* SMTP CODE SUCCESS: 250
* SMTP CODE ERROR : 500, 421
* @access public
* @return bool
*/
function Noop() {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Noop() without being connected");
return false;
}

fputs($this->smtp_conn,"NOOP" . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "NOOP not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return true;
}

/**
* Sends the quit command to the server and then closes the socket
* if there is no error or the $close_on_error argument is true.
*
* Implements from rfc 821: QUIT
*
* SMTP CODE SUCCESS: 221
* SMTP CODE ERROR : 500
* @access public
* @return bool
*/
function Quit($close_on_error=true) {
$this->error = null; # so there is no confusion

if(!$this->connected()) {
$this->error = array(
"error" => "Called Quit() without being connected");
return false;
}

# send the quit command to the server
fputs($this->smtp_conn,"quit" . $this->CRLF);

# get any good-bye messages
$byemsg = $this->get_lines();

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $byemsg;
}

$rval = true;
$e = null;

$code = substr($byemsg,0,3);
if($code != 221) {
# use e as a tmp var cause Close will overwrite $this->error
$e = array("error" => "SMTP server rejected quit command",
"smtp_code" => $code,
"smtp_rply" => substr($byemsg,4));
$rval = false;
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $e["error"] . ": " .
$byemsg . $this->CRLF;
}
}

if(empty($e) || $close_on_error) {
$this->Close();
}

return $rval;
}

/**
* Sends the command RCPT to the SMTP server with the TO: argument of $to.
* Returns true if the recipient was accepted false if it was rejected.
*
* Implements from rfc 821: RCPT TO:
*
* SMTP CODE SUCCESS: 250,251
* SMTP CODE FAILURE: 550,551,552,553,450,451,452
* SMTP CODE ERROR : 500,501,503,421
* @access public
* @return bool
*/
function Recipient($to) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Recipient() without being connected");
return false;
}

fputs($this->smtp_conn,"RCPT TO:<" . $to . ">" . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250 && $code != 251) {
$this->error =
array("error" => "RCPT not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return true;
}

/**
* Sends the RSET command to abort and transaction that is
* currently in progress. Returns true if successful false
* otherwise.
*
* Implements rfc 821: RSET
*
* SMTP CODE SUCCESS: 250
* SMTP CODE ERROR : 500,501,504,421
* @access public
* @return bool
*/
function Reset() {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Reset() without being connected");
return false;
}

fputs($this->smtp_conn,"RSET" . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "RSET failed",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}

return true;
}

/**
* Starts a mail transaction from the email address specified in
* $from. Returns true if successful or false otherwise. If True
* the mail transaction is started and then one or more Recipient
* commands may be called followed by a Data command. This command
* will send the message to the users terminal if they are logged
* in.
*
* Implements rfc 821: SEND FROM:
*
* SMTP CODE SUCCESS: 250
* SMTP CODE SUCCESS: 552,451,452
* SMTP CODE SUCCESS: 500,501,502,421
* @access public
* @return bool
*/
function Send($from) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Send() without being connected");
return false;
}

fputs($this->smtp_conn,"SEND FROM:" . $from . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "SEND not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return true;
}

/**
* Starts a mail transaction from the email address specified in
* $from. Returns true if successful or false otherwise. If True
* the mail transaction is started and then one or more Recipient
* commands may be called followed by a Data command. This command
* will send the message to the users terminal if they are logged
* in and send them an email.
*
* Implements rfc 821: SAML FROM:
*
* SMTP CODE SUCCESS: 250
* SMTP CODE SUCCESS: 552,451,452
* SMTP CODE SUCCESS: 500,501,502,421
* @access public
* @return bool
*/
function SendAndMail($from) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called SendAndMail() without being connected");
return false;
}

fputs($this->smtp_conn,"SAML FROM:" . $from . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "SAML not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return true;
}

/**
* Starts a mail transaction from the email address specified in
* $from. Returns true if successful or false otherwise. If True
* the mail transaction is started and then one or more Recipient
* commands may be called followed by a Data command. This command
* will send the message to the users terminal if they are logged
* in or mail it to them if they are not.
*
* Implements rfc 821: SOML FROM:
*
* SMTP CODE SUCCESS: 250
* SMTP CODE SUCCESS: 552,451,452
* SMTP CODE SUCCESS: 500,501,502,421
* @access public
* @return bool
*/
function SendOrMail($from) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called SendOrMail() without being connected");
return false;
}

fputs($this->smtp_conn,"SOML FROM:" . $from . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250) {
$this->error =
array("error" => "SOML not accepted from server",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return true;
}

/**
* This is an optional command for SMTP that this class does not
* support. This method is here to make the RFC821 Definition
* complete for this class and __may__ be implimented in the future
*
* Implements from rfc 821: TURN
*
* SMTP CODE SUCCESS: 250
* SMTP CODE FAILURE: 502
* SMTP CODE ERROR : 500, 503
* @access public
* @return bool
*/
function Turn() {
$this->error = array("error" => "This method, TURN, of the SMTP ".
"is not implemented");
if($this->do_debug >= 1) {
echo "SMTP -> NOTICE: " . $this->error["error"] . $this->CRLF;
}
return false;
}

/**
* Verifies that the name is recognized by the server.
* Returns false if the name could not be verified otherwise
* the response from the server is returned.
*
* Implements rfc 821: VRFY
*
* SMTP CODE SUCCESS: 250,251
* SMTP CODE FAILURE: 550,551,553
* SMTP CODE ERROR : 500,501,502,421
* @access public
* @return int
*/
function Verify($name) {
$this->error = null; # so no confusion is caused

if(!$this->connected()) {
$this->error = array(
"error" => "Called Verify() without being connected");
return false;
}

fputs($this->smtp_conn,"VRFY " . $name . $this->CRLF);

$rply = $this->get_lines();
$code = substr($rply,0,3);

if($this->do_debug >= 2) {
echo "SMTP -> FROM SERVER:" . $this->CRLF . $rply;
}

if($code != 250 && $code != 251) {
$this->error =
array("error" => "VRFY failed on name '$name'",
"smtp_code" => $code,
"smtp_msg" => substr($rply,4));
if($this->do_debug >= 1) {
echo "SMTP -> ERROR: " . $this->error["error"] .
": " . $rply . $this->CRLF;
}
return false;
}
return $rply;
}

/*******************************************************************
* INTERNAL FUNCTIONS *
******************************************************************/

/**
* Read in as many lines as possible
* either before eof or socket timeout occurs on the operation.
* With SMTP we can tell if we have more lines to read if the
* 4th character is '-' symbol. If it is a space then we don't
* need to read anything else.
* @access private
* @return string
*/
function get_lines() {
$data = "";
while($str = fgets($this->smtp_conn,515)) {
if($this->do_debug >= 4) {
echo "SMTP -> get_lines(): \$data was \"$data\"" .
$this->CRLF;
echo "SMTP -> get_lines(): \$str is \"$str\"" .
$this->CRLF;
}
$data .= $str;
if($this->do_debug >= 4) {
echo "SMTP -> get_lines(): \$data is \"$data\"" . $this->CRLF;
}
# if the 4th character is a space then we are done reading
# so just break the loop
if(substr($str,3,1) == " ") { break; }
}
return $data;
}

}
?>