silverstripe /
silverstripe-framework
| Total Complexity | 69 |
| Total Lines | 580 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Convert often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Convert, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 29 | class Convert |
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| 30 | { |
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| 31 | |||
| 32 | /** |
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| 33 | * Convert a value to be suitable for an XML attribute. |
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| 34 | * |
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| 35 | * @param array|string $val String to escape, or array of strings |
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| 36 | * @return array|string |
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| 37 | */ |
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| 38 | public static function raw2att($val) |
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| 39 | { |
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| 40 | return self::raw2xml($val); |
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| 41 | } |
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| 42 | |||
| 43 | /** |
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| 44 | * Convert a value to be suitable for an HTML attribute. |
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| 45 | * |
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| 46 | * @param string|array $val String to escape, or array of strings |
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| 47 | * @return array|string |
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| 48 | */ |
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| 49 | public static function raw2htmlatt($val) |
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| 50 | { |
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| 51 | return self::raw2att($val); |
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| 52 | } |
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| 53 | |||
| 54 | /** |
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| 55 | * Convert a value to be suitable for an HTML ID attribute. Replaces non |
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| 56 | * supported characters with a space. |
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| 57 | * |
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| 58 | * @see http://www.w3.org/TR/REC-html40/types.html#type-cdata |
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| 59 | * |
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| 60 | * @param array|string $val String to escape, or array of strings |
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| 61 | * |
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| 62 | * @return array|string |
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| 63 | */ |
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| 64 | public static function raw2htmlname($val) |
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| 65 | { |
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| 66 | if (is_array($val)) { |
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| 67 | foreach ($val as $k => $v) { |
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| 68 | $val[$k] = self::raw2htmlname($v); |
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| 69 | } |
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| 70 | |||
| 71 | return $val; |
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| 72 | } else { |
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| 73 | return self::raw2att($val); |
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| 74 | } |
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| 75 | } |
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| 76 | |||
| 77 | /** |
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| 78 | * Convert a value to be suitable for an HTML ID attribute. Replaces non |
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| 79 | * supported characters with an underscore. |
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| 80 | * |
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| 81 | * @see http://www.w3.org/TR/REC-html40/types.html#type-cdata |
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| 82 | * |
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| 83 | * @param array|string $val String to escape, or array of strings |
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| 84 | * |
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| 85 | * @return array|string |
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| 86 | */ |
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| 87 | public static function raw2htmlid($val) |
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| 88 | { |
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| 89 | if (is_array($val)) { |
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| 90 | foreach ($val as $k => $v) { |
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| 91 | $val[$k] = self::raw2htmlid($v); |
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| 92 | } |
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| 93 | |||
| 94 | return $val; |
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| 95 | } else { |
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| 96 | return trim( |
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| 97 | preg_replace( |
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| 98 | '/_+/', |
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| 99 | '_', |
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| 100 | preg_replace('/[^a-zA-Z0-9\-_:.]+/', '_', $val) |
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| 101 | ), |
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| 102 | '_' |
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| 103 | ); |
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| 104 | } |
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| 105 | } |
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| 106 | |||
| 107 | /** |
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| 108 | * Ensure that text is properly escaped for XML. |
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| 109 | * |
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| 110 | * @see http://www.w3.org/TR/REC-xml/#dt-escape |
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| 111 | * @param array|string $val String to escape, or array of strings |
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| 112 | * @return array|string |
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| 113 | */ |
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| 114 | public static function raw2xml($val) |
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| 115 | { |
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| 116 | if (is_array($val)) { |
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| 117 | foreach ($val as $k => $v) { |
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| 118 | $val[$k] = self::raw2xml($v); |
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| 119 | } |
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| 120 | return $val; |
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| 121 | } else { |
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| 122 | return htmlspecialchars($val, ENT_QUOTES, 'UTF-8'); |
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| 123 | } |
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| 124 | } |
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| 125 | |||
| 126 | /** |
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| 127 | * Ensure that text is properly escaped for Javascript. |
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| 128 | * |
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| 129 | * @param array|string $val String to escape, or array of strings |
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| 130 | * @return array|string |
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| 131 | */ |
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| 132 | public static function raw2js($val) |
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| 133 | { |
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| 134 | if (is_array($val)) { |
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| 135 | foreach ($val as $k => $v) { |
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| 136 | $val[$k] = self::raw2js($v); |
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| 137 | } |
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| 138 | return $val; |
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| 139 | } else { |
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| 140 | return str_replace( |
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| 141 | // Intercepts some characters such as <, >, and & which can interfere |
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| 142 | array("\\", '"', "\n", "\r", "'", "<", ">", "&"), |
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| 143 | array("\\\\", '\"', '\n', '\r', "\\'", "\\x3c", "\\x3e", "\\x26"), |
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| 144 | $val |
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| 145 | ); |
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| 146 | } |
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| 147 | } |
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| 148 | |||
| 149 | /** |
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| 150 | * Encode a value as a JSON encoded string. You can optionally pass a bitmask of |
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| 151 | * JSON constants as options through to the encode function. |
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| 152 | * |
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| 153 | * @param mixed $val Value to be encoded |
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| 154 | * @param int $options Optional bitmask of JSON constants |
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| 155 | * @return string JSON encoded string |
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| 156 | */ |
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| 157 | public static function raw2json($val, $options = 0) |
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| 158 | { |
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| 159 | return json_encode($val, $options); |
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| 160 | } |
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| 161 | |||
| 162 | /** |
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| 163 | * Encode an array as a JSON encoded string. |
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| 164 | * This is an alias to {@link raw2json()} |
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| 165 | * |
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| 166 | * @param array $val Array to convert |
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| 167 | * @param int $options Optional bitmask of JSON constants |
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| 168 | * @return string JSON encoded string |
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| 169 | */ |
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| 170 | public static function array2json($val, $options = 0) |
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| 171 | { |
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| 172 | return self::raw2json($val, $options); |
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| 173 | } |
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| 174 | |||
| 175 | /** |
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| 176 | * Safely encodes a value (or list of values) using the current database's |
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| 177 | * safe string encoding method |
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| 178 | * |
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| 179 | * @param mixed|array $val Input value, or list of values as an array |
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| 180 | * @param boolean $quoted Flag indicating whether the value should be safely |
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| 181 | * quoted, instead of only being escaped. By default this function will |
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| 182 | * only escape the string (false). |
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| 183 | * @return string|array Safely encoded value in the same format as the input |
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| 184 | */ |
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| 185 | public static function raw2sql($val, $quoted = false) |
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| 186 | { |
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| 187 | if (is_array($val)) { |
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| 188 | foreach ($val as $k => $v) { |
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| 189 | $val[$k] = self::raw2sql($v, $quoted); |
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| 190 | } |
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| 191 | return $val; |
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| 192 | } else { |
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| 193 | if ($quoted) { |
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| 194 | return DB::get_conn()->quoteString($val); |
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| 195 | } else { |
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| 196 | return DB::get_conn()->escapeString($val); |
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| 197 | } |
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| 198 | } |
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| 199 | } |
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| 200 | |||
| 201 | /** |
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| 202 | * Safely encodes a SQL symbolic identifier (or list of identifiers), such as a database, |
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| 203 | * table, or column name. Supports encoding of multi identfiers separated by |
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| 204 | * a delimiter (e.g. ".") |
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| 205 | * |
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| 206 | * @param string|array $identifier The identifier to escape. E.g. 'SiteTree.Title' or list of identifiers |
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| 207 | * to be joined via the separator. |
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| 208 | * @param string $separator The string that delimits subsequent identifiers |
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| 209 | * @return string The escaped identifier. E.g. '"SiteTree"."Title"' |
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| 210 | */ |
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| 211 | public static function symbol2sql($identifier, $separator = '.') |
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| 212 | { |
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| 213 | return DB::get_conn()->escapeIdentifier($identifier, $separator); |
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| 214 | } |
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| 215 | |||
| 216 | /** |
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| 217 | * Convert XML to raw text. |
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| 218 | * @uses html2raw() |
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| 219 | * @todo Currently &#xxx; entries are stripped; they should be converted |
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| 220 | * @param mixed $val |
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| 221 | * @return array|string |
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| 222 | */ |
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| 223 | public static function xml2raw($val) |
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| 236 | } |
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| 237 | } |
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| 238 | } |
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| 239 | |||
| 240 | /** |
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| 241 | * Convert a JSON encoded string into an object. |
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| 242 | * |
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| 243 | * @param string $val |
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| 244 | * @return object|boolean |
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| 245 | */ |
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| 246 | public static function json2obj($val) |
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| 247 | { |
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| 248 | return json_decode($val); |
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| 249 | } |
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| 250 | |||
| 251 | /** |
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| 252 | * Convert a JSON string into an array. |
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| 253 | * |
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| 254 | * @uses json2obj |
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| 255 | * @param string $val JSON string to convert |
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| 256 | * @return array|boolean |
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| 257 | */ |
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| 258 | public static function json2array($val) |
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| 259 | { |
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| 260 | return json_decode($val, true); |
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| 261 | } |
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| 262 | |||
| 263 | /** |
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| 264 | * Converts an XML string to a PHP array |
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| 265 | * See http://phpsecurity.readthedocs.org/en/latest/Injection-Attacks.html#xml-external-entity-injection |
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| 266 | * |
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| 267 | * @uses recursiveXMLToArray() |
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| 268 | * @param string $val |
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| 269 | * @param boolean $disableDoctypes Disables the use of DOCTYPE, and will trigger an error if encountered. |
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| 270 | * false by default. |
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| 271 | * @param boolean $disableExternals Disables the loading of external entities. false by default. |
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| 272 | * @return array |
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| 273 | * @throws Exception |
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| 274 | */ |
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| 275 | public static function xml2array($val, $disableDoctypes = false, $disableExternals = false) |
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| 276 | { |
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| 277 | // Check doctype |
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| 278 | if ($disableDoctypes && preg_match('/\<\!DOCTYPE.+]\>/', $val)) { |
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| 279 | throw new InvalidArgumentException('XML Doctype parsing disabled'); |
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| 280 | } |
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| 281 | |||
| 282 | // Disable external entity loading |
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| 283 | $oldVal = null; |
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| 284 | if ($disableExternals) { |
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| 285 | $oldVal = libxml_disable_entity_loader($disableExternals); |
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| 286 | } |
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| 287 | try { |
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| 288 | $xml = new SimpleXMLElement($val); |
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| 289 | $result = self::recursiveXMLToArray($xml); |
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| 290 | } catch (Exception $ex) { |
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| 291 | if ($disableExternals) { |
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| 292 | libxml_disable_entity_loader($oldVal); |
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| 293 | } |
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| 294 | throw $ex; |
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| 295 | } |
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| 296 | if ($disableExternals) { |
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| 297 | libxml_disable_entity_loader($oldVal); |
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| 298 | } |
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| 299 | return $result; |
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| 300 | } |
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| 301 | |||
| 302 | /** |
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| 303 | * Convert a XML string to a PHP array recursively. Do not |
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| 304 | * call this function directly, Please use {@link Convert::xml2array()} |
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| 305 | * |
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| 306 | * @param SimpleXMLElement |
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| 307 | * |
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| 308 | * @return mixed |
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| 309 | */ |
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| 310 | protected static function recursiveXMLToArray($xml) |
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| 311 | { |
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| 312 | $x = null; |
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| 313 | if ($xml instanceof SimpleXMLElement) { |
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| 314 | $attributes = $xml->attributes(); |
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| 315 | foreach ($attributes as $k => $v) { |
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| 316 | if ($v) { |
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| 317 | $a[$k] = (string) $v; |
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| 318 | } |
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| 319 | } |
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| 320 | $x = $xml; |
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| 321 | $xml = get_object_vars($xml); |
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| 322 | } |
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| 323 | if (is_array($xml)) { |
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| 324 | if (count($xml) == 0) { |
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| 325 | return (string)$x; |
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| 326 | } // for CDATA |
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| 327 | $r = []; |
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| 328 | foreach ($xml as $key => $value) { |
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| 329 | $r[$key] = self::recursiveXMLToArray($value); |
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| 330 | } |
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| 331 | // Attributes |
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| 332 | if (isset($a)) { |
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| 333 | $r['@'] = $a; |
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| 334 | } |
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| 335 | return $r; |
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| 336 | } |
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| 337 | |||
| 338 | return (string) $xml; |
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| 339 | } |
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| 340 | |||
| 341 | /** |
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| 342 | * Create a link if the string is a valid URL |
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| 343 | * |
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| 344 | * @param string $string The string to linkify |
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| 345 | * @return string A link to the URL if string is a URL |
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| 346 | */ |
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| 347 | public static function linkIfMatch($string) |
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| 353 | } |
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| 354 | } |
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| 355 | |||
| 356 | /** |
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| 357 | * Simple conversion of HTML to plaintext. |
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| 358 | * |
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| 359 | * @param string $data Input data |
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| 360 | * @param bool $preserveLinks |
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| 361 | * @param int $wordWrap |
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| 362 | * @param array $config |
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| 363 | * @return string |
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| 364 | */ |
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| 365 | public static function html2raw($data, $preserveLinks = false, $wordWrap = 0, $config = null) |
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| 366 | { |
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| 367 | $defaultConfig = array( |
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| 368 | 'PreserveLinks' => false, |
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| 369 | 'ReplaceBoldAsterisk' => true, |
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| 370 | 'CompressWhitespace' => true, |
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| 371 | 'ReplaceImagesWithAlt' => true, |
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| 372 | ); |
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| 373 | if (isset($config)) { |
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| 374 | $config = array_merge($defaultConfig, $config); |
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| 375 | } else { |
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| 376 | $config = $defaultConfig; |
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| 377 | } |
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| 378 | |||
| 379 | $data = preg_replace("/<style([^A-Za-z0-9>][^>]*)?>.*?<\/style[^>]*>/is", "", $data); |
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| 380 | $data = preg_replace("/<script([^A-Za-z0-9>][^>]*)?>.*?<\/script[^>]*>/is", "", $data); |
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| 381 | |||
| 382 | if ($config['ReplaceBoldAsterisk']) { |
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| 383 | $data = preg_replace('%<(strong|b)( [^>]*)?>|</(strong|b)>%i', '*', $data); |
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| 384 | } |
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| 385 | |||
| 386 | // Expand hyperlinks |
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| 387 | if (!$preserveLinks && !$config['PreserveLinks']) { |
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| 388 | $data = preg_replace_callback('/<a[^>]*href\s*=\s*"([^"]*)">(.*?)<\/a>/ui', function ($matches) { |
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| 389 | return Convert::html2raw($matches[2]) . "[$matches[1]]"; |
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| 390 | }, $data); |
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| 391 | $data = preg_replace_callback('/<a[^>]*href\s*=\s*([^ ]*)>(.*?)<\/a>/ui', function ($matches) { |
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| 392 | return Convert::html2raw($matches[2]) . "[$matches[1]]"; |
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| 393 | }, $data); |
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| 394 | } |
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| 395 | |||
| 396 | // Replace images with their alt tags |
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| 397 | if ($config['ReplaceImagesWithAlt']) { |
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| 398 | $data = preg_replace('/<img[^>]*alt *= *"([^"]*)"[^>]*>/i', ' \\1 ', $data); |
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| 399 | $data = preg_replace('/<img[^>]*alt *= *([^ ]*)[^>]*>/i', ' \\1 ', $data); |
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| 400 | } |
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| 401 | |||
| 402 | // Compress whitespace |
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| 403 | if ($config['CompressWhitespace']) { |
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| 404 | $data = preg_replace("/\s+/u", " ", $data); |
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| 405 | } |
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| 406 | |||
| 407 | // Parse newline tags |
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| 408 | $data = preg_replace("/\s*<[Hh][1-6]([^A-Za-z0-9>][^>]*)?> */u", "\n\n", $data); |
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| 409 | $data = preg_replace("/\s*<[Pp]([^A-Za-z0-9>][^>]*)?> */u", "\n\n", $data); |
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| 410 | $data = preg_replace("/\s*<[Dd][Ii][Vv]([^A-Za-z0-9>][^>]*)?> */u", "\n\n", $data); |
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| 411 | $data = preg_replace("/\n\n\n+/", "\n\n", $data); |
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| 412 | |||
| 413 | $data = preg_replace("/<[Bb][Rr]([^A-Za-z0-9>][^>]*)?> */", "\n", $data); |
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| 414 | $data = preg_replace("/<[Tt][Rr]([^A-Za-z0-9>][^>]*)?> */", "\n", $data); |
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| 415 | $data = preg_replace("/<\/[Tt][Dd]([^A-Za-z0-9>][^>]*)?> */", " ", $data); |
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| 416 | $data = preg_replace('/<\/p>/i', "\n\n", $data); |
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| 417 | |||
| 418 | // Replace HTML entities |
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| 419 | $data = html_entity_decode($data, ENT_QUOTES, 'UTF-8'); |
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| 420 | // Remove all tags (but optionally keep links) |
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| 421 | |||
| 422 | // strip_tags seemed to be restricting the length of the output |
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| 423 | // arbitrarily. This essentially does the same thing. |
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| 424 | if (!$preserveLinks && !$config['PreserveLinks']) { |
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| 425 | $data = preg_replace('/<\/?[^>]*>/', '', $data); |
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| 426 | } else { |
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| 427 | $data = strip_tags($data, '<a>'); |
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| 428 | } |
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| 429 | |||
| 430 | // Wrap |
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| 431 | if ($wordWrap) { |
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| 432 | $data = wordwrap(trim($data), $wordWrap); |
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| 433 | } |
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| 434 | return trim($data); |
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| 435 | } |
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| 436 | |||
| 437 | /** |
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| 438 | * There are no real specifications on correctly encoding mailto-links, |
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| 439 | * but this seems to be compatible with most of the user-agents. |
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| 440 | * Does nearly the same as rawurlencode(). |
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| 441 | * Please only encode the values, not the whole url, e.g. |
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| 442 | * "mailto:[email protected]?subject=" . Convert::raw2mailto($subject) |
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| 443 | * |
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| 444 | * @param $data string |
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| 445 | * @return string |
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| 446 | * @see http://www.ietf.org/rfc/rfc1738.txt |
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| 447 | */ |
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| 448 | public static function raw2mailto($data) |
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| 449 | { |
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| 450 | return str_ireplace( |
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| 451 | array("\n",'?','=',' ','(',')','&','@','"','\'',';'), |
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| 452 | array('%0A','%3F','%3D','%20','%28','%29','%26','%40','%22','%27','%3B'), |
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| 453 | $data |
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| 454 | ); |
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| 455 | } |
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| 456 | |||
| 457 | /** |
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| 458 | * Convert a string (normally a title) to a string suitable for using in |
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| 459 | * urls and other html attributes. Uses {@link URLSegmentFilter}. |
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| 460 | * |
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| 461 | * @param string |
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| 462 | * @return string |
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| 463 | */ |
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| 464 | public static function raw2url($title) |
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| 465 | { |
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| 466 | $f = URLSegmentFilter::create(); |
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| 467 | return $f->filter($title); |
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| 468 | } |
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| 469 | |||
| 470 | /** |
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| 471 | * Normalises newline sequences to conform to (an) OS specific format. |
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| 472 | * |
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| 473 | * @param string $data Text containing potentially mixed formats of newline |
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| 474 | * sequences including \r, \r\n, \n, or unicode newline characters |
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| 475 | * @param string $nl The newline sequence to normalise to. Defaults to that |
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| 476 | * specified by the current OS |
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| 477 | * @return string |
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| 478 | */ |
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| 479 | public static function nl2os($data, $nl = PHP_EOL) |
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| 480 | { |
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| 481 | return preg_replace('~\R~u', $nl, $data); |
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| 482 | } |
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| 483 | |||
| 484 | /** |
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| 485 | * Encode a value into a string that can be used as part of a filename. |
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| 486 | * All string data must be UTF-8 encoded. |
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| 487 | * |
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| 488 | * @param mixed $val Value to be encoded |
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| 489 | * @return string |
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| 490 | */ |
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| 491 | public static function base64url_encode($val) |
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| 494 | } |
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| 495 | |||
| 496 | /** |
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| 497 | * Decode a value that was encoded with Convert::base64url_encode. |
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| 498 | * |
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| 499 | * @param string $val Value to be decoded |
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| 500 | * @return mixed Original value |
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| 501 | */ |
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| 502 | public static function base64url_decode($val) |
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| 503 | { |
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| 504 | return json_decode( |
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| 505 | base64_decode(str_pad(strtr($val, '~_', '+/'), strlen($val) % 4, '=', STR_PAD_RIGHT)), |
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| 506 | true |
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| 507 | ); |
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| 508 | } |
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| 509 | |||
| 510 | /** |
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| 511 | * Converts upper camel case names to lower camel case, |
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| 512 | * with leading upper case characters replaced with lower case. |
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| 513 | * Tries to retain word case. |
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| 514 | * |
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| 515 | * Examples: |
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| 516 | * - ID => id |
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| 517 | * - IDField => idField |
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| 518 | * - iDField => iDField |
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| 519 | * |
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| 520 | * @param $str |
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| 521 | * @return string |
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| 522 | */ |
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| 523 | public static function upperCamelToLowerCamel($str) |
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| 524 | { |
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| 525 | $return = null; |
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| 526 | $matches = null; |
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| 527 | if (preg_match('/(^[A-Z]{1,})([A-Z]{1})([a-z]+.*)/', $str, $matches)) { |
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| 528 | // If string has trailing lowercase after more than one leading uppercase characters, |
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| 529 | // match everything but the last leading uppercase character. |
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| 530 | $return = implode('', [ |
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| 531 | strtolower($matches[1]), |
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| 532 | $matches[2], |
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| 533 | $matches[3] |
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| 534 | ]); |
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| 535 | } elseif (preg_match('/(^[A-Z]{1})([a-z]+.*)/', $str, $matches)) { |
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| 536 | // If string has trailing lowercase after exactly one leading uppercase characters, |
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| 537 | // match everything but the last leading uppercase character. |
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| 538 | $return = implode('', [ |
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| 539 | strtolower($matches[1]), |
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| 540 | $matches[2] |
||
| 541 | ]); |
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| 542 | } elseif (preg_match('/^[A-Z]+$/', $str)) { |
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| 543 | // If string has leading uppercase without trailing lowercase, |
||
| 544 | // just lowerase the whole thing. |
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| 545 | $return = strtolower($str); |
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| 546 | } else { |
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| 547 | // If string has no leading uppercase, just return. |
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| 548 | $return = $str; |
||
| 549 | } |
||
| 550 | |||
| 551 | return $return; |
||
| 552 | } |
||
| 553 | |||
| 554 | /** |
||
| 555 | * Turn a memory string, such as 512M into an actual number of bytes. |
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| 556 | * |
||
| 557 | * @param string $memString A memory limit string, such as "64M" |
||
| 558 | * @return float |
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| 559 | */ |
||
| 560 | public static function memstring2bytes($memString) |
||
| 561 | { |
||
| 562 | // Remove non-unit characters from the size |
||
| 563 | $unit = preg_replace('/[^bkmgtpezy]/i', '', $memString); |
||
| 564 | // Remove non-numeric characters from the size |
||
| 565 | $size = preg_replace('/[^0-9\.]/', '', $memString); |
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| 566 | |||
| 567 | if ($unit) { |
||
| 568 | // Find the position of the unit in the ordered string which is the power |
||
| 569 | // of magnitude to multiply a kilobyte by |
||
| 570 | return round($size * pow(1024, stripos('bkmgtpezy', $unit[0]))); |
||
| 571 | } |
||
| 572 | |||
| 573 | return round($size); |
||
|
Bug
introduced
by
|
|||
| 574 | } |
||
| 575 | |||
| 576 | /** |
||
| 577 | * @param float $bytes |
||
| 578 | * @param int $decimal decimal precision |
||
| 579 | * @return string |
||
| 580 | */ |
||
| 581 | public static function bytes2memstring($bytes, $decimal = 0) |
||
| 593 | } |
||
| 594 | |||
| 595 | /** |
||
| 596 | * Convert slashes in relative or asolute filesystem path. Defaults to DIRECTORY_SEPARATOR |
||
| 597 | * |
||
| 598 | * @param string $path |
||
| 599 | * @param string $separator |
||
| 600 | * @param bool $multiple Collapses multiple slashes or not |
||
| 601 | * @return string |
||
| 602 | */ |
||
| 603 | public static function slashes($path, $separator = DIRECTORY_SEPARATOR, $multiple = true) |
||
| 604 | { |
||
| 605 | if ($multiple) { |
||
| 606 | return preg_replace('#[/\\\\]+#', $separator, $path); |
||
| 607 | } |
||
| 608 | return str_replace(['/', '\\'], DIRECTORY_SEPARATOR, $path); |
||
| 609 | } |
||
| 610 | } |
||
| 611 |
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