1 <?php |
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2 /** |
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3 * Smarty plugin |
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4 * |
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5 * @package Smarty |
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6 * @subpackage PluginsFunction |
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7 */ |
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8 |
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9 /** |
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10 * Smarty {mailto} function plugin |
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11 * Type: function<br> |
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12 * Name: mailto<br> |
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13 * Date: May 21, 2002 |
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14 * Purpose: automate mailto address link creation, and optionally encode them.<br> |
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15 * Params: |
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16 * <pre> |
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17 * - address - (required) - e-mail address |
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18 * - text - (optional) - text to display, default is address |
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19 * - encode - (optional) - can be one of: |
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20 * * none : no encoding (default) |
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21 * * javascript : encode with javascript |
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22 * * javascript_charcode : encode with javascript charcode |
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23 * * hex : encode with hexidecimal (no javascript) |
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24 * - cc - (optional) - address(es) to carbon copy |
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25 * - bcc - (optional) - address(es) to blind carbon copy |
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26 * - subject - (optional) - e-mail subject |
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27 * - newsgroups - (optional) - newsgroup(s) to post to |
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28 * - followupto - (optional) - address(es) to follow up to |
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29 * - extra - (optional) - extra tags for the href link |
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30 * </pre> |
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31 * Examples: |
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32 * <pre> |
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33 * {mailto address="me@domain.com"} |
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34 * {mailto address="me@domain.com" encode="javascript"} |
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35 * {mailto address="me@domain.com" encode="hex"} |
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36 * {mailto address="me@domain.com" subject="Hello to you!"} |
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37 * {mailto address="me@domain.com" cc="you@domain.com,they@domain.com"} |
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38 * {mailto address="me@domain.com" extra='class="mailto"'} |
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39 * </pre> |
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40 * |
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41 * @link http://www.smarty.net/manual/en/language.function.mailto.php {mailto} |
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42 * (Smarty online manual) |
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43 * @version 1.2 |
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44 * @author Monte Ohrt <monte at ohrt dot com> |
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45 * @author credits to Jason Sweat (added cc, bcc and subject functionality) |
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46 * |
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47 * @param array $params parameters |
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48 * |
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49 * @return string |
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50 */ |
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51 function smarty_function_mailto($params) { |
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52 static $_allowed_encoding = array('javascript' => true, 'javascript_charcode' => true, 'hex' => true, 'none' => true); |
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53 $extra = ''; |
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54 |
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55 if (empty($params['address'])) { |
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56 trigger_error("mailto: missing 'address' parameter", E_USER_WARNING); |
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57 |
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58 return; |
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59 } else { |
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60 $address = $params['address']; |
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61 } |
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62 |
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63 $text = $address; |
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64 // netscape and mozilla do not decode %40 (@) in BCC field (bug?) |
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65 // so, don't encode it. |
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66 $search = array('%40', '%2C'); |
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67 $replace = array('@', ','); |
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68 $mail_parms = array(); |
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69 foreach ($params as $var => $value) { |
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70 switch ($var) { |
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71 case 'cc': |
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72 case 'bcc': |
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73 case 'followupto': |
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74 if (!empty($value)) { |
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75 $mail_parms[] = $var . '=' . str_replace($search, $replace, rawurlencode($value)); |
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76 } |
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77 break; |
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78 |
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79 case 'subject': |
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80 case 'newsgroups': |
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81 $mail_parms[] = $var . '=' . rawurlencode($value); |
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82 break; |
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83 |
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84 case 'extra': |
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85 case 'text': |
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86 $$var = $value; |
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87 |
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88 default: |
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89 } |
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90 } |
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91 |
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92 if ($mail_parms) { |
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93 $address .= '?' . join('&', $mail_parms); |
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94 } |
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95 |
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96 $encode = (empty($params['encode'])) ? 'none' : $params['encode']; |
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97 if (!isset($_allowed_encoding[$encode])) { |
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98 trigger_error("mailto: 'encode' parameter must be none, javascript, javascript_charcode or hex", E_USER_WARNING); |
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99 |
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100 return; |
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101 } |
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102 // FIXME: (rodneyrehm) document.write() excues me what? 1998 has passed! |
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103 if ($encode == 'javascript') { |
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104 $string = 'document.write(\'<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>\');'; |
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105 |
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106 $js_encode = ''; |
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107 for ($x = 0, $_length = strlen($string); $x < $_length; $x++) { |
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108 $js_encode .= '%' . bin2hex($string[$x]); |
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109 } |
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110 |
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111 return '<script type="text/javascript">eval(unescape(\'' . $js_encode . '\'))</script>'; |
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112 } elseif ($encode == 'javascript_charcode') { |
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113 $string = '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>'; |
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114 |
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115 for ($x = 0, $y = strlen($string); $x < $y; $x++) { |
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116 $ord[] = ord($string[$x]); |
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117 } |
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118 |
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119 $_ret = "<script type=\"text/javascript\" language=\"javascript\">\n" |
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120 . "{document.write(String.fromCharCode(" |
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121 . implode(',', $ord) |
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122 . "))" |
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123 . "}\n" |
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124 . "</script>\n"; |
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125 |
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126 return $_ret; |
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127 } elseif ($encode == 'hex') { |
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128 preg_match('!^(.*)(\?.*)$!', $address, $match); |
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129 if (!empty($match[2])) { |
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130 trigger_error("mailto: hex encoding does not work with extra attributes. Try javascript.", E_USER_WARNING); |
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131 |
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132 return; |
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133 } |
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134 $address_encode = ''; |
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135 for ($x = 0, $_length = strlen($address); $x < $_length; $x++) { |
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136 if (preg_match('!\w!' . Smarty::$_UTF8_MODIFIER, $address[$x])) { |
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137 $address_encode .= '%' . bin2hex($address[$x]); |
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138 } else { |
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139 $address_encode .= $address[$x]; |
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140 } |
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141 } |
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142 $text_encode = ''; |
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143 for ($x = 0, $_length = strlen($text); $x < $_length; $x++) { |
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144 $text_encode .= '&#x' . bin2hex($text[$x]) . ';'; |
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145 } |
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146 |
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147 $mailto = "mailto:"; |
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148 |
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149 return '<a href="' . $mailto . $address_encode . '" ' . $extra . '>' . $text_encode . '</a>'; |
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150 } else { |
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151 // no encoding |
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152 return '<a href="mailto:' . $address . '" ' . $extra . '>' . $text . '</a>'; |
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153 } |
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154 } |
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