1 | <?php |
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2 | require_once('class.utils.php'); |
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3 | |
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4 | /** |
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5 | * Generates XML from vectors and vice-versa |
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6 | * @author Carlos Eduardo Nogueira Gonçalves |
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7 | * @author Enderlin Ivan <enderlin.ivan@firegates.com> Classe Clean XML To Array |
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8 | * @link http://www.phpclasses.org/browse/package/3598.html Classe Clean XML To Array |
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9 | * @author Johnny Brochard <johnny.brochard@libertysurf.fr> Classe Array 2 XML |
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10 | * @link http://www.phpclasses.org/browse/package/1826.html Classe Array 2 XML |
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11 | * @version 1.0 |
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12 | * @license http://www.gnu.org/copyleft/gpl.html GPL |
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13 | * @package Workflow |
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14 | */ |
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15 | class XmlUtils extends Utils |
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16 | { |
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17 | /** |
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18 | * Xml parser container |
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19 | * @var resource parser |
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20 | * @access private |
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21 | * @see XmlUtils::fromXML |
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22 | */ |
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23 | var $parser; |
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24 | /** |
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25 | * Parse result |
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26 | * @var array pOut |
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27 | * @access private |
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28 | * @see XmlUtils::fromXML |
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29 | */ |
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30 | var $pOut = array(); |
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31 | /** |
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32 | * Contains the overlap tag temporarily |
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33 | * @var array track |
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34 | * @access private |
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35 | * @see XmlUtils::fromXML |
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36 | */ |
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37 | var $track = array(); |
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38 | /** |
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39 | * Current tag level |
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40 | * @var string tmpLevel |
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41 | * @access private |
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42 | * @see XmlUtils::fromXML |
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43 | */ |
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44 | var $tmpLevel; |
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45 | /** |
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46 | * Attribut of current tag |
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47 | * @var array tmpAttrLevel |
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48 | * @access private |
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49 | * @see XmlUtils::fromXML |
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50 | */ |
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51 | var $tmpAttrLevel = array(); |
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52 | /** |
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53 | * Write result |
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54 | * @var string wOut |
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55 | * @access private |
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56 | * @see XmlUtils::fromXML |
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57 | */ |
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58 | var $wOut = ''; |
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59 | |
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60 | /** |
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61 | * XML Array |
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62 | * @var array |
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63 | * @access private |
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64 | * @see XmlUtils::toXML |
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65 | */ |
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66 | var $XMLArray; |
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67 | |
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68 | /** |
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69 | * DOM document instance |
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70 | * @var DomDocument |
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71 | * @access private |
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72 | * @see XmlUtils::toXML |
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73 | */ |
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74 | var $doc; |
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75 | |
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76 | /** |
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77 | * Gets vector from XML |
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78 | * |
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79 | * @access public |
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80 | * @param string $src Source |
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81 | * @param string $typeof Source type : NULL, FILE, CURL |
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82 | * @param string $encoding Encoding type |
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83 | * @return array |
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84 | */ |
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85 | function fromXML ( $src, $typeof = 'FILE', $encoding = 'UTF-8' ) |
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86 | { |
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87 | // ini; |
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88 | // (re)set array; |
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89 | $this->pOut = array(); |
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90 | $this->parser = xml_parser_create(); |
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91 | xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0); |
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92 | xml_parser_set_option($this->parser, XML_OPTION_TARGET_ENCODING, $encoding); |
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93 | xml_set_object($this->parser, $this); |
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94 | xml_set_element_handler($this->parser, '_startHandler', '_endHandler'); |
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95 | xml_set_character_data_handler($this->parser, '_contentHandler'); |
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96 | // format source; |
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97 | if($typeof == NULL) { |
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98 | $data = $src; |
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99 | } |
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100 | elseif($typeof == 'FILE') { |
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101 | $fop = fopen($src, 'r'); |
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102 | $data = fread($fop, filesize($src)); |
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103 | fclose($fop); |
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104 | } |
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105 | elseif($typeof == 'CURL') { |
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106 | $curl = curl_init(); |
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107 | curl_setopt($curl, CURLOPT_URL, $src); |
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108 | curl_setopt($curl, CURLOPT_HEADER, 0); |
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109 | $data = curl_exec($curl); |
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110 | curl_close($curl); |
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111 | } |
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112 | else { |
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113 | $this->raiseError('O analisador XML precisa de informações', __FILE__, __LINE__); |
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114 | } |
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115 | // parse $data; |
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116 | $parse = xml_parse($this->parser, $data); |
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117 | if(!$parse) { |
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118 | $this->raiseError |
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119 | ( |
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120 | 'XML Error : ' . |
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121 | xml_error_string(xml_get_error_code($this->parser)) . |
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122 | ' at line ' . |
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123 | xml_get_current_line_number($this->parser) , |
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124 | __FILE__ , |
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125 | __LINE__ |
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126 | ); |
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127 | } |
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128 | // destroy parser; |
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129 | xml_parser_free($this->parser); |
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130 | // unset extra vars; |
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131 | unset($data, |
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132 | $this->track, |
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133 | $this->tmpLevel, |
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134 | $this->tmpAttrLevel); |
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135 | // remove global tag and return the result; |
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136 | return $this->pOut[0][key($this->pOut[0])]; |
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137 | } |
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138 | |
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139 | /** |
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140 | * Converts vectors to XML |
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141 | * |
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142 | * @param array $input Vector, associative or not, to be parsed into XML |
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143 | * @param string $rootName Root tag's label |
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144 | * @access public |
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145 | * @return string |
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146 | */ |
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147 | function toXML($input, $rootName="") |
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148 | { |
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149 | if (is_array($input) && count($input) != 0){ |
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150 | $this->XMLArray = $input; |
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151 | } else { |
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152 | $this->raiseError('O argumento a ser convertido deve ser um array com pelo menos 1 elemento', __FILE__, __LINE__); |
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153 | } |
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154 | global $debug; |
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155 | $this->doc = domxml_new_doc("1.0"); |
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156 | $arr = array(); |
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157 | if (count($this->XMLArray) > 1) { |
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158 | if ($rootName != "") { |
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159 | $root = $this->doc->create_element($rootName); |
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160 | } else { |
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161 | $root = $this->doc->create_element("root"); |
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162 | $rootName = "root"; |
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163 | } |
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164 | $arr = $this->XMLArray; |
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165 | } else { |
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166 | $key = key($this->XMLArray); |
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167 | $val = $this->XMLArray[$key]; |
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168 | if (!is_int($key)) { |
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169 | $root = $this->doc->create_element($key); |
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170 | $rootName = $key; |
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171 | } else { |
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172 | if ($rootName != "") { |
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173 | $root = $this->doc->create_element($rootName); |
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174 | } else { |
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175 | $root = $this->doc->create_element("root"); |
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176 | $rootName = "root"; |
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177 | } |
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178 | } |
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179 | $arr = $this->XMLArray[$key]; |
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180 | } |
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181 | $root = $this->doc->append_child($root); |
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182 | $this->_addArray($arr, $root, $rootName); |
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183 | return($this->doc->dump_mem(true)); |
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184 | } |
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185 | |
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186 | /** |
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187 | * Manages the open tag, and these attributs by callback |
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188 | * The purpose is to create a pointer : {{int ptr}} |
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189 | * If the pointer exists, we have a multi-tag situation |
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190 | * Tag name is stocked like : '<tag>' |
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191 | * Attributs is stocked like : '<tag>-ATTR' |
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192 | * Returns TRUE but built $this->pOut |
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193 | * |
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194 | * @access private |
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195 | * @param resource $parser Parser resource |
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196 | * @param string $tag Tag name |
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197 | * @param array $attr Attribut |
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198 | * @return bool |
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199 | * @see XmlUtils::fromXML |
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200 | */ |
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201 | function _startHandler ( $parser, $tag, $attr ) |
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202 | { |
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203 | static $attrLevel = -1; |
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204 | static $fnstAttr = TRUE; |
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205 | ++$attrLevel; |
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206 | // built $this->track; |
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207 | $this->track[] = $tag; |
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208 | // place pointer to the end; |
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209 | end($this->track); |
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210 | // temp level; |
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211 | $this->tmpLevel = key($this->track); |
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212 | // built $this->pOut; |
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213 | if(!isset($this->pOut[key($this->track)][$tag])) { |
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214 | $this->pOut[key($this->track)][$tag] = '{{'.key($this->track).'}}'; |
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215 | $attrLevel = 0; |
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216 | $this->tmpAttrLevel = array(); |
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217 | } |
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218 | // built attributs; |
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219 | if(!empty($attr)) { |
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220 | $this->tmpAttrLevel[] = $attrLevel; |
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221 | end($this->tmpAttrLevel); |
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222 | // it's the first attribut; |
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223 | if(!isset($this->pOut[key($this->track)][$tag.'-ATTR'])) { |
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224 | $this->pOut[key($this->track)][$tag.'-ATTR'] = $attr; |
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225 | } else { // or it's not the first; |
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226 | // so it's the second; |
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227 | if($fnstAttr === TRUE) { |
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228 | $this->pOut[key($this->track)][$tag.'-ATTR'] = array( |
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229 | prev($this->tmpAttrLevel) => $this->pOut[key($this->track)][$tag.'-ATTR'], |
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230 | next($this->tmpAttrLevel) => $attr |
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231 | ); |
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232 | $fnstAttr = FALSE; |
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233 | } else { // or one other; |
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234 | $this->pOut[key($this->track)][$tag.'-ATTR'][current($this->tmpAttrLevel)] = $attr; |
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235 | } |
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236 | } |
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237 | } |
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238 | return TRUE; |
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239 | } |
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240 | |
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241 | /** |
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242 | * Detects the pointer, or the multi-tag by callback |
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243 | * If we have a pointer, the method replaces this pointer by the content |
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244 | * Else we have a multi-tag, the method add a element to this array |
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245 | * This method returns TRUE but built $this->pOut |
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246 | * |
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247 | * @access private |
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248 | * @param resource $parser Parser resource |
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249 | * @param string $contentHandler Tag content |
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250 | * @return bool |
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251 | * @see XmlUtils::fromXML |
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252 | */ |
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253 | function _contentHandler ( $parser, $contentHandler ) |
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254 | { |
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255 | // remove all spaces; |
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256 | if(!preg_match('#^[[:space:]]*$#', $contentHandler)) { |
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257 | // $contentHandler is a string; |
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258 | if(is_string($this->pOut[key($this->track)][current($this->track)])) { |
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259 | // then $contentHandler is a pointer : {{int ptr}} case 1; |
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260 | if(preg_match('#{{([0-9]+)}}#', $this->pOut[key($this->track)][current($this->track)])) { |
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261 | $this->pOut[key($this->track)][current($this->track)] = $contentHandler; |
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262 | } else { // or then $contentHandler is a multi-tag content case 2; |
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263 | $this->pOut[key($this->track)][current($this->track)] = array( |
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264 | 0 => $this->pOut[key($this->track)][current($this->track)], |
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265 | 1 => $contentHandler |
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266 | ); |
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267 | } |
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268 | } else { // or $contentHandler is an array; |
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269 | // then $contentHandler is the multi-tag array case 1; |
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270 | if(isset($this->pOut[key($this->track)][current($this->track)][0])) { |
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271 | $this->pOut[key($this->track)][current($this->track)][] = $contentHandler; |
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272 | } else { // or then $contentHandler is a node-tag case 2; |
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273 | $this->pOut[key($this->track)][current($this->track)] = array( |
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274 | 0 => $this->pOut[key($this->track)][current($this->track)], |
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275 | 1 => $contentHandler |
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276 | ); |
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277 | } |
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278 | } |
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279 | } |
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280 | return TRUE; |
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281 | } |
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282 | |
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283 | /** |
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284 | * Detects the last pointer by callback |
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285 | * Move the last tags block up |
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286 | * And reset some temp variables |
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287 | * This method returns TRUE but built $this->pOut |
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288 | * @param resource $parser Parser resource |
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289 | * @param string $tag Tag name |
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290 | * @return bool |
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291 | * @see XmlUtils::fromXML |
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292 | * @access public |
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293 | */ |
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294 | function _endHandler ( $parser, $tag ) |
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295 | { |
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296 | // if level--; |
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297 | if(key($this->track) == $this->tmpLevel-1) { |
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298 | // search up tag; |
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299 | // use array_keys if an empty tag exists (taking the last tag); |
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300 | // if it's a normal framaset; |
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301 | $keyBack = array_keys($this->pOut[key($this->track)], '{{'.key($this->track).'}}'); |
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302 | $count = count($keyBack); |
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303 | if($count != 0) { |
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304 | $keyBack = $keyBack{$count-1}; |
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305 | // move this level up; |
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306 | $this->pOut[key($this->track)][$keyBack] = $this->pOut[key($this->track)+1]; |
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307 | } else { // if we have a multi-tag framaset ($count == 0); |
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308 | // if place is set; |
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309 | if(isset($this->pOut[key($this->track)][current($this->track)][0])) { |
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310 | // if it's a string, we built an array; |
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311 | if(is_string($this->pOut[key($this->track)][current($this->track)])) { |
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312 | $this->pOut[key($this->track)][current($this->track)] = array( |
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313 | 0 => $this->pOut[key($this->track)][current($this->track)], |
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314 | 1 => $this->pOut[key($this->track)+1] |
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315 | ); |
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316 | } else { // else add an index into the array; |
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317 | $this->pOut[key($this->track)][current($this->track)][] = $this->pOut[key($this->track)+1]; |
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318 | } |
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319 | } else { // else set the place; |
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320 | $this->pOut[key($this->track)][current($this->track)] = array( |
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321 | 0 => $this->pOut[key($this->track)][current($this->track)], |
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322 | 1 => $this->pOut[key($this->track)+1] |
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323 | ); |
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324 | } |
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325 | } |
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326 | // kick $this->pOut level out; |
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327 | array_pop($this->pOut); |
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328 | end($this->pOut); |
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329 | } |
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330 | // re-temp level; |
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331 | $this->tmpLevel = key($this->track); |
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332 | // kick $this->track level out; |
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333 | array_pop($this->track); |
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334 | end($this->track); |
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335 | return TRUE; |
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336 | } |
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337 | |
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338 | /** |
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339 | * Recursively converts nested arrays to nested XML tags |
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340 | * |
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341 | * @param array $arr |
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342 | * @param object &$n DomNode instance |
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343 | * @param string $name |
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344 | * @see XmlUtils::toXML |
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345 | * @access public |
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346 | * @return void |
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347 | */ |
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348 | function _addArray($arr, &$n, $name="") |
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349 | { |
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350 | foreach ($arr as $key => $val) { |
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351 | if (is_int($key)) { |
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352 | if (strlen($name)>1) { |
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353 | $newKey = substr($name, 0, strlen($name)-1); |
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354 | } else { |
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355 | $newKey="item"; |
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356 | } |
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357 | } else { |
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358 | $newKey = $key; |
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359 | } |
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360 | $node = $this->doc->create_element($newKey); |
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361 | if (is_array($val)) { |
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362 | $this->_addArray($arr[$key], $node, $key); |
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363 | } else { |
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364 | $nodeText = $this->doc->create_text_node($val); |
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365 | $node->append_child($nodeText); |
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366 | } |
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367 | $n->append_child($node); |
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368 | } |
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369 | } |
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370 | } |
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371 | ?> |
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