1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
<?php
// +----------------------------------------------------------------------
// | TOPThink [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2013 http://topthink.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: luofei614 <weibo.com/luofei614>
// +----------------------------------------------------------------------
namespace Think\Storage\Driver;
use Think\Storage;
// SAE环境文件写入存储类
class Sae extends Storage{
/**
* 架构函数
* @access public
*/
private $mc;
private $kvs = array();
private $htmls = array();
private $contents = array();
public function __construct() {
if(!function_exists('memcache_init')){
header('Content-Type:text/html;charset=utf-8');
exit('请在SAE平台上运行代码。');
}
$this->mc = @memcache_init();
if(!$this->mc){
header('Content-Type:text/html;charset=utf-8');
exit('您未开通Memcache服务,请在SAE管理平台初始化Memcache服务');
}
}
/**
* 获得SaeKv对象
*/
private function getKv(){
static $kv;
if(!$kv){
$kv = new \SaeKV();
if(!$kv->init())
E('您没有初始化KVDB,请在SAE管理平台初始化KVDB服务');
}
return $kv;
}
/**
* 文件内容读取
* @access public
* @param string $filename 文件名
* @return string
*/
public function read($filename,$type=''){
switch(strtolower($type)){
case 'f':
$kv = $this->getKv();
if(!isset($this->kvs[$filename])){
$this->kvs[$filename]=$kv->get($filename);
}
return $this->kvs[$filename];
default:
return $this->get($filename,'content',$type);
}
}
/**
* 文件写入
* @access public
* @param string $filename 文件名
* @param string $content 文件内容
* @return boolean
*/
public function put($filename,$content,$type=''){
switch(strtolower($type)){
case 'f':
$kv = $this->getKv();
$this->kvs[$filename] = $content;
return $kv->set($filename,$content);
case 'html':
$kv = $this->getKv();
$content = time().$content;
$this->htmls[$filename] = $content;
return $kv->set($filename,$content);
default:
$content = time().$content;
if(!$this->mc->set($filename,$content,MEMCACHE_COMPRESSED,0)){
E(L('_STORAGE_WRITE_ERROR_').':'.$filename);
}else{
$this->contents[$filename] = $content;
return true;
}
}
}
/**
* 文件追加写入
* @access public
* @param string $filename 文件名
* @param string $content 追加的文件内容
* @return boolean
*/
public function append($filename,$content,$type=''){
if($old_content = $this->read($filename,$type)){
$content = $old_content.$content;
}
return $this->put($filename,$content,$type);
}
/**
* 加载文件
* @access public
* @param string $_filename 文件名
* @param array $vars 传入变量
* @return void
*/
public function load($_filename,$vars=null){
if(!is_null($vars))
extract($vars, EXTR_OVERWRITE);
eval('?>'.$this->read($_filename));
}
/**
* 文件是否存在
* @access public
* @param string $filename 文件名
* @return boolean
*/
public function has($filename,$type=''){
if($this->read($filename,$type)){
return true;
}else{
return false;
}
}
/**
* 文件删除
* @access public
* @param string $filename 文件名
* @return boolean
*/
public function unlink($filename,$type=''){
switch(strtolower($type)){
case 'f':
$kv = $this->getKv();
unset($this->kvs[$filename]);
return $kv->delete($filename);
case 'html':
$kv = $this->getKv();
unset($this->htmls[$filename]);
return $kv->delete($filename);
default:
unset($this->contents[$filename]);
return $this->mc->delete($filename);
}
}
/**
* 读取文件信息
* @access public
* @param string $filename 文件名
* @param string $name 信息名 mtime或者content
* @return boolean
*/
public function get($filename,$name,$type=''){
switch(strtolower($type)){
case 'html':
if(!isset($this->htmls[$filename])){
$kv = $this->getKv();
$this->htmls[$filename] = $kv->get($filename);
}
$content = $this->htmls[$filename];
break;
default:
if(!isset($this->contents[$filename])){
$this->contents[$filename] = $this->mc->get($filename);
}
$content = $this->contents[$filename];
}
if(false===$content){
return false;
}
$info = array(
'mtime' => substr($content,0,10),
'content' => substr($content,10)
);
return $info[$name];
}
}