More stuff for mysql3->mysql switch.
[mailer.git] / inc / ajax-functions.php
1 <?php
2 /************************************************************************
3  * Mailer v0.2.1-FINAL                                Start: 09/17/2011 *
4  * ===================                          Last change: 09/17/2011 *
5  *                                                                      *
6  * -------------------------------------------------------------------- *
7  * File              : ajax-functions.php                               *
8  * -------------------------------------------------------------------- *
9  * Short description : AJAX-related functions                           *
10  * -------------------------------------------------------------------- *
11  * Kurzbeschreibung  : AJAX-bezogene Funktionen                         *
12  * -------------------------------------------------------------------- *
13  * Copyright (c) 2003 - 2009 by Roland Haeder                           *
14  * Copyright (c) 2009 - 2013 by Mailer Developer Team                   *
15  * For more information visit: http://mxchange.org                      *
16  *                                                                      *
17  * This program is free software; you can redistribute it and/or modify *
18  * it under the terms of the GNU General Public License as published by *
19  * the Free Software Foundation; either version 2 of the License, or    *
20  * (at your option) any later version.                                  *
21  *                                                                      *
22  * This program is distributed in the hope that it will be useful,      *
23  * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
24  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
25  * GNU General Public License for more details.                         *
26  *                                                                      *
27  * You should have received a copy of the GNU General Public License    *
28  * along with this program; if not, write to the Free Software          *
29  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,               *
30  * MA  02110-1301  USA                                                  *
31  ************************************************************************/
32
33 // Some security stuff...
34 if (!defined('__SECURITY')) {
35         die();
36 } // END - if
37
38 // Init ajax request
39 function initAjax () {
40         // Init AJAX reply array
41         $GLOBALS['ajax_reply'] = array(
42                 // Raw content
43                 'reply_content' => NULL,
44         );
45
46         // Init call-back debug information
47         $GLOBALS['ajax_callback_function'] = NULL;
48
49         // Set content type (mostly JSON)
50         setContentType('application/json');
51
52         // By default nothing is found/valid
53         setHttpStatus('204 No Content');
54
55         // Set username
56         setUsername('{--USERNAME_AJAX--}');
57
58         // In installation phase load ajax_installer.php
59         if (isInstaller()) {
60                 // Load it
61                 loadIncludeOnce('inc/ajax/ajax_installer.php');
62         } // END - if
63 }
64
65 // Setter for AJAX reply content
66 function setAjaxReplyContent ($content) {
67         // Log message
68         //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'content()=' . strlen($content));
69
70         // Set it, but with URL encoding
71         $GLOBALS['ajax_reply']['reply_content'] = urlencode(doFinalCompilation($content, FALSE));
72 }
73
74 /**
75  * Checks whether the AJAX access level was valid. This function doesn't need
76  * caching in $GLOBALS[__FUNCTION__] because it will be called only once.
77  */
78 function isValidAjaxRequestLevel () {
79         // By default nothing is valid
80         $isValid = FALSE;
81
82         // Switch on the 'level' value
83         switch (postRequestElement('level')) {
84                 case 'install': // Installation phase level
85                         // Simply check for it
86                         $isValid = isInstaller();
87                         break;
88
89                 case 'admin': // Admin area
90                         // Load admin includes
91                         loadIncludeOnce('inc/modules/admin/admin-inc.php');
92                         loadIncludeOnce('inc/ajax/ajax_admin.php');
93
94                         // Determine correct 'what' value
95                         $what = determineWhat();
96
97                         // Get action value
98                         $action = getActionFromModuleWhat('admin', $what);
99
100                         // Check condition
101                         $isValid = ((isAdmin()) && (isAdminAllowedAccessMenu($action, $what)));
102                         break;
103
104                 default: // Unsupported level (please report this!)
105                         logDebugMessage(__FUNCTION__, __LINE__, 'Unsupported AJAX request access level ' . postRequestElement('level') . ' detected. Please report this, it means this part is not finished.');
106                         break;
107         } // END - switch
108
109         // Return validation result
110         return $isValid;
111 }
112
113 // Processes the AJAX request by generating a call-back on given 'level' value
114 function processAjaxRequest () {
115         // Generate the call-back function name
116         $callbackName = 'doAjaxProcess' . capitalizeUnderscoreString(postRequestElement('level'));
117
118         // Is the call-back function there?
119         if (!function_exists($callbackName)) {
120                 // This shall not happen
121                 reportBug(__FUNCTION__, __LINE__, 'AJAX call-back ' . $callbackName . ' does not exist.');
122         } // END - if
123
124         // Call the function
125         call_user_func($callbackName);
126 }
127
128 // Send AJAX content
129 function sendAjaxContent ($forceOutput = FALSE) {
130         // Is the status fine or template not found (404)?
131         if ((isAjaxHttpStatusAccepted()) || ($forceOutput === TRUE)) {
132                 // Then output the JSON
133                 outputHtml(encodeJson($GLOBALS['ajax_reply']));
134         } // END - if
135 }
136
137 // Checks whether the HTTP status is accepted
138 function isAjaxHttpStatusAccepted () {
139         // Is it accepted?
140         $isAccepted = in_array(strtoupper(getHttpStatus()), array('200 OK', '404 NOT FOUND'));
141
142         // Return it
143         return $isAccepted;
144 }
145
146 // [EOF]
147 ?>