-
Notifications
You must be signed in to change notification settings - Fork 0
/
Sajax.php
361 lines (306 loc) · 8.4 KB
/
Sajax.php
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
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
<?php
if (!isset($SAJAX_INCLUDED)) {
/*
* GLOBALS AND DEFAULTS
*
*/
$GLOBALS['sajax_version'] = '0.12';
$GLOBALS['sajax_debug_mode'] = 0;
$GLOBALS['sajax_export_list'] = array();
$GLOBALS['sajax_request_type'] = 'GET';
$GLOBALS['sajax_remote_uri'] = '';
$GLOBALS['sajax_failure_redirect'] = '';
/*
* CODE
*
*/
//
// Initialize the Sajax library.
//
function sajax_init() {
}
//
// Helper function to return the script's own URI.
//
function sajax_get_my_uri() {
return $_SERVER["REQUEST_URI"];
}
//$sajax_remote_uri = sajax_get_my_uri();
//
// Helper function to return an eval()-usable representation
// of an object in JavaScript.
//
function sajax_get_js_repr($value) {
$type = gettype($value);
if ($type == "boolean") {
return ($value) ? "Boolean(true)" : "Boolean(false)";
}
elseif ($type == "integer") {
return "parseInt($value)";
}
elseif ($type == "double") {
return "parseFloat($value)";
}
elseif ($type == "array" || $type == "object" ) {
//
// XXX Arrays with non-numeric indices are not
// permitted according to ECMAScript, yet everyone
// uses them.. We'll use an object.
//
$s = "{ ";
if ($type == "object") {
$value = get_object_vars($value);
}
foreach ($value as $k=>$v) {
$esc_key = sajax_esc($k);
if (is_numeric($k))
$s .= "$k: " . sajax_get_js_repr($v) . ", ";
else
$s .= "\"$esc_key\": " . sajax_get_js_repr($v) . ", ";
}
if (count($value))
$s = substr($s, 0, -2);
return $s . " }";
}
else {
$esc_val = sajax_esc($value);
$s = "'$esc_val'";
return $s;
}
}
function sajax_handle_client_request() {
global $sajax_export_list;
$mode = "";
if (! empty($_GET["rs"]))
$mode = "get";
if (!empty($_POST["rs"]))
$mode = "post";
if (empty($mode))
return;
$target = "";
if ($mode == "get") {
// Bust cache in the head
header ("Expires: Mon, 26 Jul 1997 05:00:00 GMT"); // Date in the past
header ("Last-Modified: " . gmdate("D, d M Y H:i:s") . " GMT");
// always modified
header ("Cache-Control: no-cache, must-revalidate"); // HTTP/1.1
header ("Pragma: no-cache"); // HTTP/1.0
$func_name = $_GET["rs"];
if (! empty($_GET["rsargs"]))
$args = $_GET["rsargs"];
else
$args = array();
}
else {
$func_name = $_POST["rs"];
if (! empty($_POST["rsargs"]))
$args = $_POST["rsargs"];
else
$args = array();
}
if (! in_array($func_name, $sajax_export_list))
echo "-:$func_name not callable";
else {
echo "+:";
$result = call_user_func_array($func_name, $args);
echo "var res = " . trim(sajax_get_js_repr($result)) . "; res;";
}
exit;
}
function sajax_get_common_js() {
global $sajax_debug_mode;
global $sajax_request_type;
global $sajax_remote_uri;
global $sajax_failure_redirect;
$t = strtoupper($sajax_request_type);
if ($t != "" && $t != "GET" && $t != "POST")
return "// Invalid type: $t.. \n\n";
ob_start();
?>
// remote scripting library
// (c) copyright 2005 modernmethod, inc
var sajax_debug_mode = <?php echo $sajax_debug_mode ? "true" : "false"; ?>;
var sajax_request_type = "<?php echo $t; ?>";
var sajax_target_id = "";
var sajax_failure_redirect = "<?php echo $sajax_failure_redirect; ?>";
function sajax_debug(text) {
if (sajax_debug_mode)
alert(text);
}
function sajax_init_object() {
sajax_debug("sajax_init_object() called..")
var A;
var msxmlhttp = new Array(
'Msxml2.XMLHTTP.5.0',
'Msxml2.XMLHTTP.4.0',
'Msxml2.XMLHTTP.3.0',
'Msxml2.XMLHTTP',
'Microsoft.XMLHTTP');
for (var i = 0; i < msxmlhttp.length; i++) {
try {
A = new ActiveXObject(msxmlhttp[i]);
} catch (e) {
A = null;
}
}
if(!A && typeof XMLHttpRequest != "undefined")
A = new XMLHttpRequest();
if (!A)
sajax_debug("Could not create connection object.");
return A;
}
var sajax_requests = new Array();
function sajax_cancel() {
for (var i = 0; i < sajax_requests.length; i++)
sajax_requests[i].abort();
}
function sajax_do_call(func_name, args) {
var i, x, n;
var uri;
var post_data;
var target_id;
sajax_debug("in sajax_do_call().." + sajax_request_type + "/" + sajax_target_id);
target_id = sajax_target_id;
if (typeof(sajax_request_type) == "undefined" || sajax_request_type == "")
sajax_request_type = "GET";
uri = "<?php echo $sajax_remote_uri; ?>";
if (sajax_request_type == "GET") {
if (uri.indexOf("?") == -1)
uri += "?rs=" + escape(func_name);
else
uri += "&rs=" + escape(func_name);
uri += "&rst=" + escape(sajax_target_id);
uri += "&rsrnd=" + new Date().getTime();
for (i = 0; i < args.length-1; i++)
uri += "&rsargs[]=" + escape(args[i]);
post_data = null;
}
else if (sajax_request_type == "POST") {
post_data = "rs=" + escape(func_name);
post_data += "&rst=" + escape(sajax_target_id);
post_data += "&rsrnd=" + new Date().getTime();
for (i = 0; i < args.length-1; i++)
post_data = post_data + "&rsargs[]=" + escape(args[i]);
}
else {
alert("Illegal request type: " + sajax_request_type);
}
x = sajax_init_object();
if (x == null) {
if (sajax_failure_redirect != "") {
location.href = sajax_failure_redirect;
return false;
} else {
sajax_debug("NULL sajax object for user agent:\n" + navigator.userAgent);
return false;
}
} else {
x.open(sajax_request_type, uri, true);
// window.open(uri);
sajax_requests[sajax_requests.length] = x;
if (sajax_request_type == "POST") {
x.setRequestHeader("Method", "POST " + uri + " HTTP/1.1");
x.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
}
x.onreadystatechange = function() {
if (x.readyState != 4)
return;
sajax_debug("received " + x.responseText);
var status;
var data;
var txt = x.responseText.replace(/^\s*|\s*$/g,"");
status = txt.charAt(0);
data = txt.substring(2);
if (status == "") {
// let's just assume this is a pre-response bailout and let it slide for now
} else if (status == "-")
alert("Error: " + data);
else {
if (target_id != "")
document.getElementById(target_id).innerHTML = eval(data);
else {
try {
var callback;
var extra_data = false;
if (typeof args[args.length-1] == "object") {
callback = args[args.length-1].callback;
extra_data = args[args.length-1].extra_data;
} else {
callback = args[args.length-1];
}
callback(eval(data), extra_data);
} catch (e) {
sajax_debug("Caught error " + e + ": Could not eval " + data );
}
}
}
}
}
sajax_debug(func_name + " uri = " + uri + "/post = " + post_data);
x.send(post_data);
sajax_debug(func_name + " waiting..");
delete x;
return true;
}
<?php
$html = ob_get_contents();
ob_end_clean();
return $html;
}
function sajax_show_common_js() {
echo sajax_get_common_js();
}
// javascript escape a value
function sajax_esc($val)
{
$val = str_replace("\\", "\\\\", $val);
$val = str_replace("\r", "\\r", $val);
$val = str_replace("\n", "\\n", $val);
$val = str_replace("'", "\\'", $val);
return str_replace('"', '\\"', $val);
}
function sajax_get_one_stub($func_name) {
ob_start();
?>
// wrapper for <?php echo $func_name; ?>
function x_<?php echo $func_name; ?>() {
sajax_do_call("<?php echo $func_name; ?>",
x_<?php echo $func_name; ?>.arguments);
}
<?php
$html = ob_get_contents();
ob_end_clean();
return $html;
}
function sajax_show_one_stub($func_name) {
echo sajax_get_one_stub($func_name);
}
function sajax_export() {
global $sajax_export_list;
$n = func_num_args();
for ($i = 0; $i < $n; $i++) {
$sajax_export_list[] = func_get_arg($i);
}
}
$sajax_js_has_been_shown = 0;
function sajax_get_javascript()
{
global $sajax_js_has_been_shown;
global $sajax_export_list;
$html = "";
if (! $sajax_js_has_been_shown) {
$html .= sajax_get_common_js();
$sajax_js_has_been_shown = 1;
}
foreach ($sajax_export_list as $func) {
$html .= sajax_get_one_stub($func);
}
return $html;
}
function sajax_show_javascript()
{
echo sajax_get_javascript();
}
$SAJAX_INCLUDED = 1;
}
?>