2 /************************************************************************
3 * Mailer v0.2.1-FINAL Start: 01/27/2011 *
4 * =================== Last change: 01/27/2011 *
6 * -------------------------------------------------------------------- *
7 * File : xml-functions.php *
8 * -------------------------------------------------------------------- *
9 * Short description : Functions for handling XML templates *
10 * -------------------------------------------------------------------- *
11 * Kurzbeschreibung : Funktionen zum Umgang mit XML-Templates *
12 * -------------------------------------------------------------------- *
15 * $Tag:: 0.2.1-FINAL $ *
17 * -------------------------------------------------------------------- *
18 * Copyright (c) 2003 - 2009 by Roland Haeder *
19 * Copyright (c) 2009 - 2012 by Mailer Developer Team *
20 * For more information visit: http://mxchange.org *
22 * This program is free software; you can redistribute it and/or modify *
23 * it under the terms of the GNU General Public License as published by *
24 * the Free Software Foundation; either version 2 of the License, or *
25 * (at your option) any later version. *
27 * This program is distributed in the hope that it will be useful, *
28 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
29 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
30 * GNU General Public License for more details. *
32 * You should have received a copy of the GNU General Public License *
33 * along with this program; if not, write to the Free Software *
34 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *
36 ************************************************************************/
38 // Some security stuff...
39 if (!defined('__SECURITY')) {
43 // Calls back a function based on given XML template data
44 function showEntriesByXmlCallback ($template) {
45 // Generate FQFN for with special path
46 $FQFN = sprintf("%stemplates/xml/%s%s.xml",
48 detectExtraTemplatePath($template),
52 // Is the file readable?
53 if (!isFileReadable($FQFN)) {
54 // No, use without extra path
55 $FQFN = sprintf("%stemplates/xml/%s.xml",
61 // Is it again readable?
62 if (isFileReadable($FQFN)) {
64 $templateContent = readFromFile($FQFN);
67 $GLOBALS['__XML_CALLBACKS'] = array(
68 'callbacks' => array(),
69 'functions' => array()
71 $GLOBALS['__XML_ARGUMENTS'] = array();
72 $GLOBALS['__COLUMN_INDEX'] = array();
74 // Handle it over to the parser
75 parseXmlData($templateContent);
77 // Add special elements, e.g. column index
78 addXmlSpecialElements($template);
80 // Call the call-back function
81 doCallXmlCallbackFunction();
84 displayMessage('{%message,XML_TEMPLATE_404=' . $template . '%}');
88 // Adds special elements by calling back another template-depending function
89 function addXmlSpecialElements ($template) {
90 // Generate the FQCN (Full-Qualified CallbackName)
91 $FQCN = 'addXmlSpecial' . capitalizeUnderscoreString($template);
94 if (function_exists($FQCN)) {
96 call_user_func($FQCN);
98 // This callback function is only optional
99 logDebugMessage(__FUNCTION__, __LINE__, 'Call-back function ' . $FQCN . ' for template ' . $template . ' does not exist.');
103 // Parses the XML content
104 function parseXmlData ($content) {
105 // Do we have recode?
106 if (!function_exists('recode')) {
108 reportBug('PHP extension recode is missing. Please install it.');
111 // Convert HTML entities to UTF-8
112 $content = recode('html..utf8', $content);
114 // Create a new XML parser
115 $xmlParser = xml_parser_create();
117 // Force case-folding to on
118 xml_parser_set_option($xmlParser, XML_OPTION_CASE_FOLDING, true);
121 xml_parser_set_option($xmlParser, XML_OPTION_TARGET_ENCODING, 'UTF-8');
123 // Set handler call-backs
124 xml_set_element_handler($xmlParser, 'startXmlElement', 'endXmlElement');
125 xml_set_character_data_handler($xmlParser, 'xmlCharacterHandler');
127 // Now parse the XML tree
128 if (!xml_parse($xmlParser, $content)) {
129 // Error found in XML!
130 //* DEBUG: */ die('<pre>'.htmlentities($content).'</pre>');
131 reportBug(__FUNCTION__, __LINE__, 'Error found in XML. errorMessage=' . xml_error_string(xml_get_error_code($xmlParser)) . ', line=' . xml_get_current_line_number($xmlParser));
135 xml_parser_free($xmlParser);
138 // Calls the found call-back function
139 function doCallXmlCallbackFunction () {
140 // Loop through all added entries
141 foreach ($GLOBALS['__XML_CALLBACKS']['callbacks'] as $callback) {
142 // Do we have the entry?
143 if ((isset($GLOBALS['__XML_CALLBACKS']['functions'][$callback])) && (isset($GLOBALS['__XML_ARGUMENTS'][$callback]))) {
144 // Run all function callbacks
145 foreach ($GLOBALS['__XML_CALLBACKS']['functions'][$callback] as $function) {
146 // Trim all function names
147 $function = trim($function);
149 // If the function is empty, simply skip to the (maybe) next one
150 if (empty($function)) {
155 // Now construct the call-back function's name with 'Execute' at the end
156 $callbackName = $callback . 'Execute';
159 if (!function_exists($callbackName)) {
160 reportBug(__FUNCTION__, __LINE__, 'callback=' . $callback . ',function=' . $function . 'arguments()=' . count($GLOBALS['__XML_ARGUMENTS'][$callback]) . ' - execute call-back does not exist.');
164 call_user_func_array($callbackName, array($function, $GLOBALS['__XML_ARGUMENTS'][$callback], $GLOBALS['__COLUMN_INDEX'][$callback]));
168 reportBug(__FUNCTION__, __LINE__, 'Entry in callbacks does exist, but not in functions, callback= ' . $callback);
173 //-----------------------------------------------------------------------------
174 // Call-back functions for XML parser
175 //-----------------------------------------------------------------------------
178 function startXmlElement ($resource, $element, $attributes) {
179 // Call-back function for given element
180 $elementCallback = 'doXml' . capitalizeUnderscoreString($element);
182 // Is the call-back function there?
183 if (!function_exists($elementCallback)) {
185 reportBug(__FUNCTION__, __LINE__, 'Missing call-back function ' . $elementCallback . ', please add it.');
188 // Call the call-back function
189 call_user_func_array($elementCallback, array($resource, $attributes));
193 function endXmlElement ($resource, $element) {
194 // Out-of-function for now
198 function xmlCharacterHandler ($resource, $characters) {
200 $characters = trim($characters);
202 // Do we have some to handle?
203 if (strlen($characters) == 0) {
208 // @TODO Handle characters
209 die(__FUNCTION__ . ':characters[]='.strlen($characters));
212 // Checks if given type is valid, makes all lower-case
213 function isInvalidXmlType ($type) {
215 $type = strtolower(trim($type));
218 return (in_array($type, array('string', 'array', 'bool', 'int', 'callback')));
221 // Checks if given condition is valid
222 function isXmlConditionValid ($condition) {
223 // Trim and make lower-case
224 $condition = trim(strtolower($condition));
227 return (in_array($condition, array('equals')));
230 // Checks if given value is valid/verifyable
231 function isXmlValueValid ($type, $value) {
232 // Depends on type, so build a call-back
233 $callbackName = 'isXmlType' . trim(capitalizeUnderscoreString($type));
235 // Is the call-back function there?
236 if (!function_exists($callbackName)) {
238 reportBug(__FUNCTION__, __LINE__, 'Missing call-back function ' . $callbackName . ', please add it.');
241 // Call and return it
242 return call_user_func_array($callbackName, array($value));
245 // Converts given condition into a symbol
246 function convertXmlContion ($condition) {
247 // Default is an invalid one
250 // Detect the condition again
251 switch ($condition) {
252 case 'EQUALS': // Equals
256 default: // Unknown condition
257 reportBug(__FUNCTION__, __LINE__, 'Condition ' . $condition . ' is unknown/unsupported.');
265 // "Getter" for sql part back from given array
266 function getSqlPartFromXmlArray ($columns) {
270 // Walk through all entries
271 foreach ($columns as $columnArray) {
275 // Do we have a table/alias
276 if (!empty($columnArray['table'])) {
278 $sqlPart .= $columnArray['table'] . '.';
282 $sqlPart .= '`' . $columnArray['column'] . '`';
284 // Is a function and alias set?
285 if ((!empty($columnArray['function'])) && (!empty($columnArray['alias']))) {
287 $sqlPart = $columnArray['function'] . '(' . $sqlPart . ') AS `' . $columnArray['alias'] . '`';
290 // Add finished SQL part to the query
291 $SQL .= $sqlPart . ',';
294 // Return it without last commata
295 return substr($SQL, 0, -1);
298 // Searches in given XML array for value and returns the parent index
299 function searchXmlArray ($value, $columns, $childKey) {
300 // Default is not found
303 // Walk through whole array
304 foreach ($columns as $key => $columnArray) {
305 // Make sure the element is there
306 assert(isset($columnArray[$childKey]));
308 // Now is it what we are looking for?
309 if ($columnArray[$childKey] == $value) {
310 // Remember this match
313 // And abort any further searches