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1 | <?php |
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2 | |||
3 | namespace XoopsModules\Wgevents\Common; |
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4 | |||
5 | /* |
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6 | Utility Class Definition |
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7 | |||
8 | You may not change or alter any portion of this comment or credits of |
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9 | supporting developers from this source code or any supporting source code |
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10 | which is considered copyrighted (c) material of the original comment or credit |
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11 | authors. |
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12 | |||
13 | This program is distributed in the hope that it will be useful, but |
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14 | WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
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16 | */ |
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17 | |||
18 | /** |
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19 | * |
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20 | * @license GNU GPL 2.0 or later (https://www.gnu.org/licenses/gpl-2.0.html) |
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21 | * @copyright https://xoops.org 2000-2020 © XOOPS Project |
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22 | * @author ZySpec <[email protected]> |
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23 | * @author Mamba <[email protected]> |
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24 | */ |
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25 | |||
26 | use MyTextSanitizer; |
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27 | use XoopsFormDhtmlTextArea; |
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28 | use XoopsFormTextArea; |
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29 | use XoopsModules\Wgevents; |
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30 | use XoopsModules\Wgevents\Helper; |
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31 | |||
32 | /** |
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33 | * Class Utility |
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34 | */ |
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35 | class SysUtility |
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36 | { |
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37 | use VersionChecks; |
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38 | |||
39 | //checkVerXoops, checkVerPhp Traits |
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40 | |||
41 | use ServerStats; |
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42 | |||
43 | // getServerStats Trait |
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44 | |||
45 | use FilesManagement; |
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46 | |||
47 | // Files Management Trait |
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48 | |||
49 | /** |
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50 | * Access the only instance of this class |
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51 | * |
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52 | * @return object |
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53 | * |
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54 | */ |
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55 | public static function getInstance() |
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56 | { |
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57 | static $instance; |
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58 | if (null === $instance) { |
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59 | $instance = new static(); |
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60 | } |
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61 | |||
62 | return $instance; |
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63 | } |
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64 | |||
65 | /** |
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66 | * truncateHtml can truncate a string up to a number of characters while preserving whole words and HTML tags |
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67 | * www.gsdesign.ro/blog/cut-html-string-without-breaking-the-tags |
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68 | * www.cakephp.org |
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69 | * |
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70 | * @param string $text String to truncate. |
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71 | * @param int $length Length of returned string, including ellipsis. |
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72 | * @param string $ending Ending to be appended to the trimmed string. |
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73 | * @param bool $exact If false, $text will not be cut mid-word |
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74 | * @param bool $considerHtml If true, HTML tags would be handled correctly |
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75 | * |
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76 | * @return string Trimmed string. |
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77 | */ |
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78 | public static function truncateHtml($text, $length = 100, $ending = '...', $exact = false, $considerHtml = true) |
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79 | { |
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80 | if ($considerHtml) { |
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81 | // if the plain text is shorter than the maximum length, return the whole text |
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82 | if (\mb_strlen(\preg_replace('/<.*?' . '>/', '', $text)) <= $length) { |
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83 | return $text; |
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84 | } |
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85 | // splits all html-tags to scanable lines |
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86 | \preg_match_all('/(<.+?' . '>)?([^<>]*)/s', $text, $lines, \PREG_SET_ORDER); |
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87 | $total_length = \mb_strlen($ending); |
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88 | $open_tags = []; |
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89 | $truncate = ''; |
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90 | foreach ($lines as $line_matchings) { |
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91 | // if there is any html-tag in this line, handle it and add it (uncounted) to the output |
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92 | if (!empty($line_matchings[1])) { |
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93 | // if it's an "empty element" with or without xhtml-conform closing slash |
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94 | if (\preg_match('/^<(\s*.+?\/\s*|\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\s.+?)?)>$/is', $line_matchings[1])) { |
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95 | // do nothing |
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96 | // if tag is a closing tag |
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97 | } elseif (\preg_match('/^<\s*\/([^\s]+?)\s*>$/s', $line_matchings[1], $tag_matchings)) { |
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98 | // delete tag from $open_tags list |
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99 | $pos = \array_search($tag_matchings[1], $open_tags, true); |
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100 | if (false !== $pos) { |
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101 | unset($open_tags[$pos]); |
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102 | } |
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103 | // if tag is an opening tag |
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104 | } elseif (\preg_match('/^<\s*([^\s>!]+).*?' . '>$/s', $line_matchings[1], $tag_matchings)) { |
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105 | // add tag to the beginning of $open_tags list |
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106 | \array_unshift($open_tags, \mb_strtolower($tag_matchings[1])); |
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107 | } |
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108 | // add html-tag to $truncate'd text |
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109 | $truncate .= $line_matchings[1]; |
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110 | } |
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111 | // calculate the length of the plain text part of the line; handle entities as one character |
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112 | $content_length = \mb_strlen(\preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', ' ', $line_matchings[2])); |
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113 | if ($total_length + $content_length > $length) { |
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114 | // the number of characters which are left |
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115 | $left = $length - $total_length; |
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116 | $entities_length = 0; |
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117 | // search for html entities |
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118 | if (\preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', $line_matchings[2], $entities, \PREG_OFFSET_CAPTURE)) { |
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119 | // calculate the real length of all entities in the legal range |
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120 | foreach ($entities[0] as $entity) { |
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121 | if ($left >= $entity[1] + 1 - $entities_length) { |
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122 | $left--; |
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123 | $entities_length += \mb_strlen($entity[0]); |
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124 | } else { |
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125 | // no more characters left |
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126 | break; |
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127 | } |
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128 | } |
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129 | } |
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130 | $truncate .= \mb_substr($line_matchings[2], 0, $left + $entities_length); |
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131 | // maximum lenght is reached, so get off the loop |
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132 | break; |
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133 | } |
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134 | $truncate .= $line_matchings[2]; |
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135 | $total_length += $content_length; |
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136 | |||
137 | // if the maximum length is reached, get off the loop |
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138 | if ($total_length >= $length) { |
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139 | break; |
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140 | } |
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141 | } |
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142 | } else { |
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143 | if (\mb_strlen($text) <= $length) { |
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144 | return $text; |
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145 | } |
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146 | $truncate = \mb_substr($text, 0, $length - \mb_strlen($ending)); |
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147 | } |
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148 | // if the words shouldn't be cut in the middle... |
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149 | if (!$exact) { |
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150 | // ...search the last occurance of a space... |
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151 | $spacepos = \mb_strrpos($truncate, ' '); |
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152 | if (isset($spacepos)) { |
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153 | // ...and cut the text in this position |
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154 | $truncate = \mb_substr($truncate, 0, $spacepos); |
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155 | } |
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156 | } |
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157 | // add the defined ending to the text |
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158 | $truncate .= $ending; |
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159 | if ($considerHtml) { |
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160 | // close all unclosed html-tags |
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161 | foreach ($open_tags as $tag) { |
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162 | $truncate .= '</' . $tag . '>'; |
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163 | } |
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164 | } |
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165 | |||
166 | return $truncate; |
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167 | } |
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168 | |||
169 | /** |
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170 | * @param \Xmf\Module\Helper $helper |
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171 | * @param array|null $options |
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172 | * @return \XoopsFormDhtmlTextArea|\XoopsFormEditor |
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173 | */ |
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174 | public static function getEditor($helper = null, $options = null) |
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175 | { |
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176 | /** @var Helper $helper */ |
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177 | if (null === $options) { |
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178 | $options = []; |
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179 | $options['name'] = 'Editor'; |
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180 | $options['value'] = 'Editor'; |
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181 | $options['rows'] = 10; |
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182 | $options['cols'] = '100%'; |
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183 | $options['width'] = '100%'; |
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184 | $options['height'] = '400px'; |
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185 | } |
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186 | |||
187 | if (null === $helper) { |
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188 | $helper = Helper::getInstance(); |
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189 | } |
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190 | |||
191 | $isAdmin = $helper->isUserAdmin(); |
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192 | |||
193 | if (\class_exists('\XoopsFormEditor')) { |
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194 | if ($isAdmin) { |
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195 | $descEditor = new \XoopsFormEditor(\ucfirst($options['name']), $helper->getConfig('editorAdmin'), $options, $nohtml = false, $onfailure = 'textarea'); |
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196 | } else { |
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197 | $descEditor = new \XoopsFormEditor(\ucfirst($options['name']), $helper->getConfig('editorUser'), $options, $nohtml = false, $onfailure = 'textarea'); |
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198 | } |
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199 | } else { |
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200 | $descEditor = new \XoopsFormDhtmlTextArea(\ucfirst($options['name']), $options['name'], $options['value'], '100%', '100%'); |
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201 | } |
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202 | |||
203 | // $form->addElement($descEditor); |
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204 | |||
205 | return $descEditor; |
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206 | } |
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207 | |||
208 | /** |
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209 | * @param $fieldname |
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210 | * @param $table |
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211 | * |
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212 | * @return bool |
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213 | */ |
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214 | public function fieldExists($fieldname, $table) |
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215 | { |
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216 | global $xoopsDB; |
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217 | $result = $xoopsDB->queryF("SHOW COLUMNS FROM $table LIKE '$fieldname'"); |
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218 | |||
219 | return ($xoopsDB->getRowsNum($result) > 0); |
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220 | } |
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221 | } |
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222 |