annotate inputParser.inc @ 62:b7efe2ecbc11

Wrapped everything in inputParser in a class.
author Tom Fredrik "BFG" Klaussen <bfg@blenning.no>
date Thu, 11 Oct 2012 18:21:59 +0200
parents 0e157721bbad
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1 <?php
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2 /**
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3 * @file
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4 * Functionality for translating an XML document into a webpage
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5 */
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6 class InputParser {
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7 private $options;
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8 private $master;
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9
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10 function __construct($name, $masterCache) {
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11 $this->master = new DOMDocument();
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12 $cache = $masterCache;
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13 $cache->cache_time($name);
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14 $this->master->load($name);
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16 $this->options = new Options($this->master);
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17 $this->options->setCache($cache);
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18 $this->options->setBasePath(basePath());
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19 $this->options->setCacheable(true);
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20
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21 $this->options->setUrlParams(array('name', 'lang'));
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22
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23 if(array_key_exists('lang', $_GET) && $_GET['lang']) {
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24 $this->options->setLang($_GET['lang']);
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25 }
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26 else {
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27 $this->options->setLang($this->options->getDefaultLang());
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28 }
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29
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30 if(array_key_exists('name', $_GET) && $_GET['name']) {
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31 $this->options->setName($_GET['name']);
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32 }
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33
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34 $params = $this->master->getElementsByTagName("param");
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36 foreach ($params as $param) {
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37 if ($param->getAttribute("type") == "input") {
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38 $doc = self::getInput($this->master, $param, $this->options);
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40 $parent = $param->parentNode;
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41 foreach ($doc->firstChild->childNodes as $child) {
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42 $clonedChild = $this->master->importNode($child, true);
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43 $parent->insertBefore($clonedChild, $param);
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44 }
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45 $parent->removeChild($param);
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46 }
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47 }
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48 $this->master = self::getFiles($this->master, $this->options);
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49
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50 }
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51
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52 function genPage()
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53 {
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54 if (CACHING && $this->options->getCacheable())
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55 $this->options->getCache()->CheckHttpModified();
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56
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57 print $this->master->saveXml($this->master);
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58 //print_r($cache->cacheSet(1));
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59 }
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61
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62 function getParam($param)
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63 {
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64 $param_type=$param->getAttribute("type");
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65 $param_value;
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66 if (!$param_type)
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67 $param_type="scalar";
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69 if($param_type == "scalar") {
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70 $param_subst=$param->getAttribute("subst");
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71 $param_value=$param->getAttribute("value");
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72 if ($param_subst) {
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73 /*
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74 $param_value=preg_replace("/name/", $name, $param_subst);
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75 $param_value=preg_replace('/lang/', $lang, $param_value);
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76 */
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77 }
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78 }
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79 elseif($param_type == "array") {
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80 $params=$param->getElementsByTagName("param");
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81 $param_value=array();
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82 foreach ($param->childNodes as $param) {
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83 if ($param->nodeType == XML_ELEMENT_NODE)
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84 {
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85 array_push($param_value, self::getParam($param));
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86 }
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87 }
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88 }
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89 return $param_value;
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90 }
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91
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92 function getFiles($doc, $options) {
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93 $lang = $options->getLang();
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94 $conf = $options->getName();
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96 $toRemove = array();
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97
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98 $topLevelTags = $doc->getElementsByTagName("toplevel");
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99 foreach ($topLevelTags as $topLevel) {
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100 $topLevel->parentNode->removeChild($topLevel);
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101 }
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102
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103 $valueDict = array();
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104 $fragments = array();
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105 $setters = $doc->getElementsByTagName("set");
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106 foreach ($setters as $setTag) {
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107 $key = $setTag->getAttribute("id");
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108 $type = $setTag->getAttribute("type");
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109 if ($type == "fragment") {
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110 $fragments[$key] = $setTag;
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111 }
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112 else {
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113 $value = $setTag->getAttribute("value");
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114 if ($key && $value) {
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115 $valueDict[$key] = $value;
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116 }
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117 }
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118 //We need to iterate in the opposite direction when removing,
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119 //so best shifting.
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120 array_unshift($toRemove, $setTag);
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121 }
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122
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123 $params = $doc->getElementsByTagName("param");
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124 foreach ($params as $param) {
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125 if ($param->getAttribute("type")=="input_config") {
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126 $id = $param->getAttribute("id");
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127 if (array_key_exists($id, $valueDict)) {
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128 $value = $valueDict[$id];
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129 $tmp = new DOMDocument();
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130
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131 $tmp->loadXml("<xml>${value}</xml>");
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132 $parent = $param->parentNode;
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133 $parent->insertBefore(new DOMText($tmp->textContent), $param);
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134 //We need to iterate in the opposite direction when removing,
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135 //so best shifting.
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136 array_unshift($toRemove, $param);
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137 }
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138 elseif (array_key_exists($id, $fragments)) {
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139 $fragment = $fragments[$id];
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140
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141 $cloneFragment = $fragment->cloneNode(true);
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142 $insNode = $param;
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143 for ($i = $cloneFragment->childNodes->length - 1; $i >= 0; $i--) {
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144 $child = $cloneFragment->childNodes->item($i);
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145 $child = $child->parentNode->removeChild($child);
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146 $insNode = $insNode->parentNode->insertBefore($child, $insNode);
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147 }
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148
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149 //We need to iterate in the opposite direction when removing,
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150 //so best shifting.
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151 array_unshift($toRemove, $param);
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152 }
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153 }
23
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154 }
62
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155
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156 foreach($toRemove as $param) {
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157 $parent = $param->parentNode;
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158 $parent->removeChild($param);
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159 }
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160
62
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161 $body = getElementByTagName($doc,"body");
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162 $files = $body->getElementsByTagName("file");
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163
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164 $toRemove = array();
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165
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166 foreach ($files as $file) {
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167 $script = $file->getAttribute("script");
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168 if ($script) {
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169 $options->setCacheable(false);
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170 $src="";
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171 $cwd = getcwd();
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172
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173 $matches=array();
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174 preg_match('/(.*\/)/', $script, $matches);
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175 $dirname=$matches[0];
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176 preg_match('/([^\/]*)$/', $script, $matches);
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177 $filename=$matches[0];
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178 chdir("${lang}/${dirname}");
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179 $pipe=popen("php ${filename}","r");
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180 $file_content = stream_get_contents($pipe);
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181 chdir("${cwd}");
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182 }
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183 else {
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184 $src = $file->getAttribute("src");
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185 $fname = $options->getBasePath() . "/${lang}/${src}";
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186 $file_content = $options->getCache()->loadFile($fname);
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187 }
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188 if(floatval($file_content)<0) {
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189 errorPage("Resource not found '${lang}/${src}'");
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190 }
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191
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192 $filters = $file->getElementsByTagName("filter");
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193 foreach($filters as $filter) {
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194 $func = $filter->getAttribute("function");
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195 $params = $filter->getElementsByTagName("param");
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196 $callString = "\$file_content = ${func}(\$file_content, \$options";
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197 $param_values = array();
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198 $i = 0;
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199 foreach ($filter->childNodes as $param) {
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200 if ($param->nodeType == XML_ELEMENT_NODE)
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201 {
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202 $param_value[$i] = self::getParam($param);
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203 $callString .= ",\$param_value[$i]";
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204 $i++;
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205 }
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206 }
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207 $callString .= ");";
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208 eval($callString);
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209 }
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210 $ndoc = new DOMDocument();
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211
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212 $ndoc->loadXml("<xml>${file_content}</xml>");
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213
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214 $parent = $file->parentNode;
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215 foreach ($ndoc->firstChild->childNodes as $child) {
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216 $clonedChild = $doc->importNode($child, true);
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217 $parent->insertBefore($clonedChild, $file);
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218 }
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219 //We need to iterate in the opposite direction when removing,
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220 //so best shifting.
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221 array_unshift($toRemove, $file);
59
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222 }
62
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223 foreach($toRemove as $param) {
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224 $parent = $param->parentNode;
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225 $parent->removeChild($param);
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226 }
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227
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228 return $doc;
59
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229 }
23
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230
62
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231 function getInput($master, $param, $options)
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232 {
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233 $lang = $options->getLang();
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234 $name = $param->getAttribute("id");
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235 $conf = $options->getName();
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236 if (!$conf)
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237 $conf = $param->getAttribute("default");
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238
62
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239 $confFile = $options->getBasePath() . "/${lang}/${conf}.xml";
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240 $options->getCache()->cache_time($confFile);
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241 $doc = new DOMDocument();
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242 $doc->load($confFile);
59
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243
62
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244 $toplevel = $doc->getElementsByTagName("toplevel");
59
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245
62
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246 if(! $toplevel->length) {
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247 errorPage("Resource '${conf}' is not available", 500);
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248 }
59
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249
62
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250 $includes = $doc->getElementsByTagName("include");
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251 $recurse = 0;
59
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252
62
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253 while($includes->length > 0) {
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254 if(++$recurse > MAX_RECURSE) {
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255 errorPage('Recursion limit exceeded', 500);
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256 }
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257 foreach ($includes as $include) {
59
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258 $src = $include->getAttribute("src");
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259 $subdoc = new DOMDocument();
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260 $subfile = $options->getBasePath() . "/${lang}/${src}";
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261 $subdoc->load("$subfile");
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262 $options->getCache()->cache_time($subfile);
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263 $parent = $include->parentNode;
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264 $xml = getElementByTagName($subdoc,"xml");
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265 foreach($xml->childNodes as $child) {
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266 $text = $subdoc->saveXml($child);
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267 $clonedChild = $doc->importNode($child,true);
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268 $parent->insertBefore($clonedChild,$include);
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269 }
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270 $parent->removeChild($include);
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271 }
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272 $includes = $doc->getElementsByTagName("include");
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273 }
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274
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275 return $doc;
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276 }
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277 }
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278 ?>