| commit | author | age | ||
| 0c2596 | 1 | <?php |
| A | 2 | |
| 3 | /* | |
| 4 | +-----------------------------------------------------------------------+ | |
| 5 | | program/include/rcube_output.php | | |
| 6 | | | | |
| 7 | | This file is part of the Roundcube PHP suite | | |
| 8 | | Copyright (C) 2005-2012 The Roundcube Dev Team | | |
| 9 | | | | |
| 10 | | Licensed under the GNU General Public License version 3 or | | |
| 11 | | any later version with exceptions for skins & plugins. | | |
| 12 | | See the README file for a full license statement. | | |
| 13 | | CONTENTS: | | |
| 14 | | Abstract class for output generation | | |
| 15 | | | | |
| 16 | +-----------------------------------------------------------------------+ | |
| 17 | | Author: Thomas Bruederli <roundcube@gmail.com> | | |
| 18 | | Author: Aleksander Machniak <alec@alec.pl> | | |
| 19 | +-----------------------------------------------------------------------+ | |
| 20 | */ | |
| 21 | ||
| 22 | /** | |
| 23 | * Class for output generation | |
| 24 | * | |
| 25 | * @package HTML | |
| 26 | */ | |
| 27 | abstract class rcube_output | |
| 28 | { | |
| 29 | public $browser; | |
| 30 | public $type = 'html'; | |
| 31 | public $ajax_call = false; | |
| 32 | public $framed = false; | |
| 33 | ||
| 34 | protected $app; | |
| 35 | protected $config; | |
| 36 | protected $charset = RCMAIL_CHARSET; | |
| 37 | protected $env = array(); | |
| 38 | protected $pagetitle = ''; | |
| 39 | protected $object_handlers = array(); | |
| 40 | ||
| 41 | ||
| 42 | /** | |
| 43 | * Object constructor | |
| 44 | */ | |
| 45 | public function __construct($task = null, $framed = false) | |
| 46 | { | |
| 47 | $this->app = rcmail::get_instance(); | |
| 48 | $this->config = $this->app->config; | |
| 49 | $this->browser = new rcube_browser(); | |
| 50 | } | |
| 51 | ||
| 52 | ||
| 53 | /** | |
| 69baee | 54 | * Magic getter |
| T | 55 | */ |
| 56 | public function __get($var) | |
| 57 | { | |
| 58 | // allow read-only access to $env | |
| 59 | if ($var == 'env') | |
| 60 | return $this->env; | |
| 61 | ||
| 62 | return null; | |
| 63 | } | |
| 64 | ||
| 65 | /** | |
| 0c2596 | 66 | * Setter for page title |
| A | 67 | * |
| 68 | * @param string $title Page title | |
| 69 | */ | |
| 70 | public function set_pagetitle($title) | |
| 71 | { | |
| 72 | $this->pagetitle = $title; | |
| 73 | } | |
| 74 | ||
| 75 | ||
| 76 | /** | |
| 77 | * Setter for output charset. | |
| 78 | * To be specified in a meta tag and sent as http-header | |
| 79 | * | |
| 80 | * @param string $charset Charset name | |
| 81 | */ | |
| 82 | public function set_charset($charset) | |
| 83 | { | |
| 84 | $this->charset = $charset; | |
| 85 | } | |
| 86 | ||
| 87 | ||
| 88 | /** | |
| 89 | * Getter for output charset | |
| 90 | * | |
| 91 | * @return string Output charset name | |
| 92 | */ | |
| 93 | public function get_charset() | |
| 94 | { | |
| 95 | return $this->charset; | |
| 96 | } | |
| 97 | ||
| 98 | ||
| 99 | /** | |
| 100 | * Getter for the current skin path property | |
| 101 | */ | |
| 102 | public function get_skin_path() | |
| 103 | { | |
| 104 | return $this->config->get('skin_path'); | |
| 105 | } | |
| 106 | ||
| 107 | ||
| 108 | /** | |
| 109 | * Set environment variable | |
| 110 | * | |
| 111 | * @param string $name Property name | |
| 112 | * @param mixed $value Property value | |
| 113 | */ | |
| 114 | public function set_env($name, $value) | |
| 115 | { | |
| 116 | $this->env[$name] = $value; | |
| 117 | } | |
| 118 | ||
| 119 | ||
| 120 | /** | |
| 121 | * Environment variable getter. | |
| 122 | * | |
| 123 | * @param string $name Property name | |
| 124 | * | |
| 125 | * @return mixed Property value | |
| 126 | */ | |
| 127 | public function get_env($name) | |
| 128 | { | |
| 129 | return $this->env[$name]; | |
| 130 | } | |
| 131 | ||
| 132 | ||
| 133 | /** | |
| 134 | * Delete all stored env variables and commands | |
| 135 | */ | |
| 136 | public function reset() | |
| 137 | { | |
| 138 | $this->env = array(); | |
| 139 | $this->object_handlers = array(); | |
| 140 | $this->pagetitle = ''; | |
| 141 | } | |
| 142 | ||
| 143 | ||
| 144 | /** | |
| 145 | * Call a client method | |
| 146 | * | |
| 147 | * @param string Method to call | |
| 148 | * @param ... Additional arguments | |
| 149 | */ | |
| 150 | abstract function command(); | |
| 151 | ||
| 152 | ||
| 153 | /** | |
| 154 | * Add a localized label to the client environment | |
| 155 | */ | |
| 156 | abstract function add_label(); | |
| 157 | ||
| 158 | ||
| 159 | /** | |
| 160 | * Invoke display_message command | |
| 161 | * | |
| 162 | * @param string $message Message to display | |
| 163 | * @param string $type Message type [notice|confirm|error] | |
| 164 | * @param array $vars Key-value pairs to be replaced in localized text | |
| 165 | * @param boolean $override Override last set message | |
| 166 | * @param int $timeout Message displaying time in seconds | |
| 167 | */ | |
| 168 | abstract function show_message($message, $type = 'notice', $vars = null, $override = true, $timeout = 0); | |
| 169 | ||
| 170 | ||
| 171 | /** | |
| 172 | * Redirect to a certain url. | |
| 173 | * | |
| 174 | * @param mixed $p Either a string with the action or url parameters as key-value pairs | |
| 175 | * @param int $delay Delay in seconds | |
| 176 | */ | |
| 177 | abstract function redirect($p = array(), $delay = 1); | |
| 178 | ||
| 179 | ||
| 180 | /** | |
| 181 | * Send output to the client. | |
| 182 | */ | |
| 183 | abstract function send(); | |
| 184 | ||
| 185 | ||
| 186 | /** | |
| 187 | * Register a template object handler | |
| 188 | * | |
| 189 | * @param string Object name | |
| 190 | * @param string Function name to call | |
| 191 | * @return void | |
| 192 | */ | |
| 193 | public function add_handler($obj, $func) | |
| 194 | { | |
| 195 | $this->object_handlers[$obj] = $func; | |
| 196 | } | |
| 197 | ||
| 198 | ||
| 199 | /** | |
| 200 | * Register a list of template object handlers | |
| 201 | * | |
| 202 | * @param array Hash array with object=>handler pairs | |
| 203 | * @return void | |
| 204 | */ | |
| 205 | public function add_handlers($arr) | |
| 206 | { | |
| 207 | $this->object_handlers = array_merge($this->object_handlers, $arr); | |
| 208 | } | |
| 209 | ||
| 210 | ||
| 211 | /** | |
| 212 | * Send HTTP headers to prevent caching a page | |
| 213 | */ | |
| 214 | public function nocacheing_headers() | |
| 215 | { | |
| 216 | if (headers_sent()) { | |
| 217 | return; | |
| 218 | } | |
| 219 | ||
| 220 | header("Expires: ".gmdate("D, d M Y H:i:s")." GMT"); | |
| 221 | header("Last-Modified: ".gmdate("D, d M Y H:i:s")." GMT"); | |
| 222 | ||
| 223 | // Request browser to disable DNS prefetching (CVE-2010-0464) | |
| 224 | header("X-DNS-Prefetch-Control: off"); | |
| 225 | ||
| 226 | // We need to set the following headers to make downloads work using IE in HTTPS mode. | |
| 1aceb9 | 227 | if ($this->browser->ie && rcube_utils::https_check()) { |
| 0c2596 | 228 | header('Pragma: private'); |
| A | 229 | header("Cache-Control: private, must-revalidate"); |
| 230 | } | |
| 231 | else { | |
| 232 | header("Cache-Control: private, no-cache, must-revalidate, post-check=0, pre-check=0"); | |
| 233 | header("Pragma: no-cache"); | |
| 234 | } | |
| 235 | } | |
| 236 | ||
| 988a80 | 237 | /** |
| T | 238 | * Send header with expire date 30 days in future |
| 239 | * | |
| 240 | * @param int Expiration time in seconds | |
| 241 | */ | |
| 242 | public function future_expire_header($offset = 2600000) | |
| 243 | { | |
| 244 | if (headers_sent()) | |
| 245 | return; | |
| 246 | ||
| 247 | header("Expires: " . gmdate("D, d M Y H:i:s", time()+$offset) . " GMT"); | |
| 248 | header("Cache-Control: max-age=$offset"); | |
| 249 | header("Pragma: "); | |
| 250 | } | |
| 251 | ||
| 0c2596 | 252 | |
| A | 253 | /** |
| 254 | * Show error page and terminate script execution | |
| 255 | * | |
| 256 | * @param int $code Error code | |
| 257 | * @param string $message Error message | |
| 258 | */ | |
| 259 | public function raise_error($code, $message) | |
| 260 | { | |
| 261 | // STUB: to be overloaded by specific output classes | |
| 262 | fputs(STDERR, "Error $code: $message\n"); | |
| 263 | exit(-1); | |
| 264 | } | |
| 265 | ||
| 266 | ||
| 267 | /** | |
| 268 | * Convert a variable into a javascript object notation | |
| 269 | * | |
| 270 | * @param mixed Input value | |
| 271 | * | |
| 272 | * @return string Serialized JSON string | |
| 273 | */ | |
| 274 | public static function json_serialize($input) | |
| 275 | { | |
| 276 | $input = rcube_charset::clean($input); | |
| 277 | ||
| 278 | // sometimes even using rcube_charset::clean() the input contains invalid UTF-8 sequences | |
| 279 | // that's why we have @ here | |
| 280 | return @json_encode($input); | |
| 281 | } | |
| 282 | ||
| 283 | } | |
