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
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
|
<?php
/*
+-----------------------------------------------------------------------+
| program/include/rcube_output.php |
| |
| This file is part of the Roundcube PHP suite |
| Copyright (C) 2005-2012 The Roundcube Dev Team |
| |
| Licensed under the GNU General Public License version 3 or |
| any later version with exceptions for skins & plugins. |
| See the README file for a full license statement. |
| CONTENTS: |
| Abstract class for output generation |
| |
+-----------------------------------------------------------------------+
| Author: Thomas Bruederli <roundcube@gmail.com> |
| Author: Aleksander Machniak <alec@alec.pl> |
+-----------------------------------------------------------------------+
*/
/**
* Class for output generation
*
* @package Framework
* @subpackage View
*/
abstract class rcube_output
{
public $browser;
protected $app;
protected $config;
protected $charset = RCUBE_CHARSET;
protected $env = array();
/**
* Object constructor
*/
public function __construct()
{
$this->app = rcube::get_instance();
$this->config = $this->app->config;
$this->browser = new rcube_browser();
}
/**
* Magic getter
*/
public function __get($var)
{
// allow read-only access to $env
if ($var == 'env')
return $this->env;
return null;
}
/**
* Setter for output charset.
* To be specified in a meta tag and sent as http-header
*
* @param string $charset Charset name
*/
public function set_charset($charset)
{
$this->charset = $charset;
}
/**
* Getter for output charset
*
* @return string Output charset name
*/
public function get_charset()
{
return $this->charset;
}
/**
* Set environment variable
*
* @param string $name Property name
* @param mixed $value Property value
*/
public function set_env($name, $value)
{
$this->env[$name] = $value;
}
/**
* Environment variable getter.
*
* @param string $name Property name
*
* @return mixed Property value
*/
public function get_env($name)
{
return $this->env[$name];
}
/**
* Delete all stored env variables and commands
*/
public function reset()
{
$this->env = array();
}
/**
* Invoke display_message command
*
* @param string $message Message to display
* @param string $type Message type [notice|confirm|error]
* @param array $vars Key-value pairs to be replaced in localized text
* @param boolean $override Override last set message
* @param int $timeout Message displaying time in seconds
*/
abstract function show_message($message, $type = 'notice', $vars = null, $override = true, $timeout = 0);
/**
* Redirect to a certain url.
*
* @param mixed $p Either a string with the action or url parameters as key-value pairs
* @param int $delay Delay in seconds
*/
abstract function redirect($p = array(), $delay = 1);
/**
* Send output to the client.
*/
abstract function send();
/**
* Send HTTP headers to prevent caching a page
*/
public function nocacheing_headers()
{
if (headers_sent()) {
return;
}
header("Expires: ".gmdate("D, d M Y H:i:s")." GMT");
header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT");
// Request browser to disable DNS prefetching (CVE-2010-0464)
header("X-DNS-Prefetch-Control: off");
// We need to set the following headers to make downloads work using IE in HTTPS mode.
if ($this->browser->ie && rcube_utils::https_check()) {
header('Pragma: private');
header("Cache-Control: private, must-revalidate");
}
else {
header("Cache-Control: private, no-cache, must-revalidate, post-check=0, pre-check=0");
header("Pragma: no-cache");
}
}
/**
* Send header with expire date 30 days in future
*
* @param int Expiration time in seconds
*/
public function future_expire_header($offset = 2600000)
{
if (headers_sent())
return;
header("Expires: " . gmdate("D, d M Y H:i:s", time()+$offset) . " GMT");
header("Cache-Control: max-age=$offset");
header("Pragma: ");
}
/**
* Show error page and terminate script execution
*
* @param int $code Error code
* @param string $message Error message
*/
public function raise_error($code, $message)
{
// STUB: to be overloaded by specific output classes
fputs(STDERR, "Error $code: $message\n");
exit(-1);
}
/**
* Create an edit field for inclusion on a form
*
* @param string col field name
* @param string value field value
* @param array attrib HTML element attributes for field
* @param string type HTML element type (default 'text')
*
* @return string HTML field definition
*/
public static function get_edit_field($col, $value, $attrib, $type = 'text')
{
static $colcounts = array();
$fname = '_'.$col;
$attrib['name'] = $fname . ($attrib['array'] ? '[]' : '');
$attrib['class'] = trim($attrib['class'] . ' ff_' . $col);
if ($type == 'checkbox') {
$attrib['value'] = '1';
$input = new html_checkbox($attrib);
}
else if ($type == 'textarea') {
$attrib['cols'] = $attrib['size'];
$input = new html_textarea($attrib);
}
else if ($type == 'select') {
$input = new html_select($attrib);
$input->add('---', '');
$input->add(array_values($attrib['options']), array_keys($attrib['options']));
}
else if ($attrib['type'] == 'password') {
$input = new html_passwordfield($attrib);
}
else {
if ($attrib['type'] != 'text' && $attrib['type'] != 'hidden') {
$attrib['type'] = 'text';
}
$input = new html_inputfield($attrib);
}
// use value from post
if (isset($_POST[$fname])) {
$postvalue = rcube_utils::get_input_value($fname, rcube_utils::INPUT_POST, true);
$value = $attrib['array'] ? $postvalue[intval($colcounts[$col]++)] : $postvalue;
}
$out = $input->show($value);
return $out;
}
/**
* Convert a variable into a javascript object notation
*
* @param mixed Input value
*
* @return string Serialized JSON string
*/
public static function json_serialize($input)
{
$input = rcube_charset::clean($input);
// sometimes even using rcube_charset::clean() the input contains invalid UTF-8 sequences
// that's why we have @ here
return @json_encode($input);
}
}
|
