1 | <?php |
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2 | /** |
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3 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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4 | * contributor license agreements. See the NOTICE file distributed with |
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5 | * this work for additional information regarding copyright ownership. |
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6 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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7 | * (the "License"); you may not use this file except in compliance with |
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8 | * the License. You may obtain a copy of the License at |
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9 | * |
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10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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11 | * |
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12 | * Unless required by applicable law or agreed to in writing, software |
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13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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15 | * See the License for the specific language governing permissions and |
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16 | * limitations under the License. |
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17 | * |
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18 | * |
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19 | * @package log4php |
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20 | * @subpackage helpers |
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21 | */ |
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22 | |
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23 | /** |
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24 | * @ignore |
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25 | */ |
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26 | if (!defined('LOG4PHP_DIR')) define('LOG4PHP_DIR', dirname(__FILE__) . '/..'); |
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27 | |
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28 | define('LOG4PHP_LOGGER_TRANSFORM_CDATA_START', '<![CDATA['); |
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29 | define('LOG4PHP_LOGGER_TRANSFORM_CDATA_END', ']]>'); |
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30 | define('LOG4PHP_LOGGER_TRANSFORM_CDATA_PSEUDO_END', ']]>'); |
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31 | define('LOG4PHP_LOGGER_TRANSFORM_CDATA_EMBEDDED_END', |
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32 | LOG4PHP_LOGGER_TRANSFORM_CDATA_END . |
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33 | LOG4PHP_LOGGER_TRANSFORM_CDATA_PSEUDO_END . |
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34 | LOG4PHP_LOGGER_TRANSFORM_CDATA_START |
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35 | ); |
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36 | |
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37 | /** |
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38 | * Utility class for transforming strings. |
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39 | * |
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40 | * @author Marco Vassura |
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41 | * @package log4php |
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42 | * @subpackage helpers |
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43 | * @since 0.7 |
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44 | */ |
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45 | class LoggerTransform { |
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46 | |
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47 | /** |
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48 | * This method takes a string which may contain HTML tags (ie, |
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49 | * <b>, <table>, etc) and replaces any '<' and '>' |
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50 | * characters with respective predefined entity references. |
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51 | * |
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52 | * @param string $input The text to be converted. |
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53 | * @return string The input string with the characters '<' and '>' replaced with |
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54 | * &lt; and &gt; respectively. |
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55 | * @static |
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56 | */ |
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57 | function escapeTags($input) |
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58 | { |
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59 | //Check if the string is null or zero length -- if so, return |
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60 | //what was sent in. |
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61 | |
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62 | if(empty($input)) |
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63 | return $input; |
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64 | |
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65 | //Use a StringBuffer in lieu of String concatenation -- it is |
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66 | //much more efficient this way. |
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67 | |
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68 | return htmlspecialchars($input, ENT_NOQUOTES); |
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69 | } |
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70 | |
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71 | /** |
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72 | * Ensures that embeded CDEnd strings (]]>) are handled properly |
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73 | * within message, NDC and throwable tag text. |
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74 | * |
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75 | * @param string $buf String holding the XML data to this point. The |
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76 | * initial CDStart (<![CDATA[) and final CDEnd (]]>) |
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77 | * of the CDATA section are the responsibility of |
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78 | * the calling method. |
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79 | * @param string &str The String that is inserted into an existing |
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80 | * CDATA Section within buf. |
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81 | * @static |
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82 | */ |
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83 | function appendEscapingCDATA(&$buf, $str) |
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84 | { |
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85 | if(empty($str)) |
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86 | return; |
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87 | |
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88 | $rStr = str_replace( |
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89 | LOG4PHP_LOGGER_TRANSFORM_CDATA_END, |
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90 | LOG4PHP_LOGGER_TRANSFORM_CDATA_EMBEDDED_END, |
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91 | $str |
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92 | ); |
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93 | $buf .= $rStr; |
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94 | } |
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95 | } |
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