[1] | 1 | <?php |
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| 2 | /** |
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[42] | 3 | * FormValidator.inc.php |
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[1] | 4 | * Code by Strangecode :: www.strangecode.com :: This document contains copyrighted information |
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| 5 | * |
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[136] | 6 | * The FormValidator class provides a method for validating input from |
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[1] | 7 | * http requests and displaying errors. |
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| 8 | * |
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[144] | 9 | * @requires codebase/lib/Validator.inc.php |
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[1] | 10 | * @author Quinn Comendant <quinn@strangecode.com> |
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[106] | 11 | * @version 1.8 |
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[1] | 12 | * |
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[136] | 13 | * Example of use: |
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| 14 | --------------------------------------------------------------------- |
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| 15 | // The object that validates form input. |
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| 16 | require_once 'codebase/lib/FormValidator.inc.php'; |
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| 17 | $fv = new FormValidator(); |
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| 18 | |
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[144] | 19 | $fv->empty('field_name', sprintf(_("%s cannot be blank."), _("Field name"))); |
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[151] | 20 | $fv->stringLength('field_name', 0, 255, sprintf(_("%s must be %d-to-%d characters in length."), _("Field name"), 0, 255)); |
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[136] | 21 | $fv->isInteger('field_name', sprintf(_("%s must be an integer."), _("Field name"))); |
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| 22 | $fv->checkRegex('field_name', '/^\d{4}$|^$/', true, sprintf(_("%s must be in MMYY format."), _("Field name"))); |
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[151] | 23 | $fv->numericRange('field_name', 0, 65535, sprintf(_("%s must be a number between %d and %d."), _("Field name"), 0, 65535)); |
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[136] | 24 | $fv->validatePhone('field_name'); |
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| 25 | $fv->validateEmail('field_name'); |
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| 26 | $fv->validateStrDate('field_name', sprintf(_("%s must be a valid date in YYYY-MM-DD format."), _("Field name"))); |
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| 27 | if (is_null($var)) { |
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| 28 | $fv->addError('field_name', sprintf(_("%s is invalid."), _("Field name"))); |
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| 29 | } |
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| 30 | if ($fv->anyErrors()) { |
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| 31 | // Errors! |
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| 32 | } |
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| 33 | --------------------------------------------------------------------- |
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[1] | 34 | */ |
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[42] | 35 | |
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[144] | 36 | // Credit card types are defined in class Validator. |
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| 37 | |
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| 38 | require_once 'codebase/lib/Validator.inc.php'; |
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| 39 | |
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| 40 | class FormValidator extends Validator { |
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| 41 | |
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[100] | 42 | // Array filling with error messages. |
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[1] | 43 | var $errors = array(); |
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[96] | 44 | |
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[144] | 45 | // Default error marker. |
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[162] | 46 | var $marker = ' sc-msg-error '; |
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[42] | 47 | |
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[1] | 48 | /** |
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| 49 | * Return the current list of errors. |
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| 50 | * |
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| 51 | * @return array an array of errors in the following arrangement: |
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| 52 | * keys: the name of the variable with an error |
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| 53 | * vals: the message to display for that error |
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| 54 | */ |
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| 55 | function getErrorList() |
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| 56 | { |
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| 57 | return $this->errors; |
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| 58 | } |
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[42] | 59 | |
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[1] | 60 | /** |
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| 61 | * Add an error to the errors stack. |
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| 62 | * |
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| 63 | * @param string $form_name The name of the incoming form variable. |
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| 64 | * @param string $msg The error message for that form. |
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| 65 | * @param int $type The type of message: MSG_NOTICE, |
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| 66 | * MSG_SUCCESS, MSG_WARNING, or MSG_ERR. |
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| 67 | * @param string $file __FILE__. |
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| 68 | * @param string $line __LINE__. |
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| 69 | */ |
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| 70 | function addError($form_name, $msg='', $type=MSG_ERR, $file=null, $line=null) |
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| 71 | { |
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| 72 | $this->errors[] = array( |
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| 73 | 'name' => $form_name, |
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| 74 | 'message' => $msg, |
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| 75 | 'type' => $type, |
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| 76 | 'file' => $file, |
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| 77 | 'line' => $line |
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| 78 | ); |
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| 79 | } |
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[42] | 80 | |
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[1] | 81 | /** |
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| 82 | * Check whether any errors have been triggered. |
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| 83 | * |
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| 84 | * @param string $form_name the name of the incoming form variable |
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| 85 | * |
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[42] | 86 | * @return bool true if any errors were found, or if found for |
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[1] | 87 | * a variable of $form_name, false otherwise |
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| 88 | */ |
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| 89 | function anyErrors($form_name=null) |
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| 90 | { |
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| 91 | if (isset($form_name)) { |
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| 92 | foreach ($this->errors as $err) { |
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| 93 | if ($err['name'] == $form_name) { |
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[42] | 94 | return true; |
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[1] | 95 | } |
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| 96 | } |
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| 97 | return false; |
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[144] | 98 | } else { |
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| 99 | return (sizeof($this->errors) > 0); |
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[1] | 100 | } |
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| 101 | } |
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| 102 | |
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| 103 | /** |
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| 104 | * Reset the error list. |
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| 105 | */ |
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| 106 | function resetErrorList() |
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| 107 | { |
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| 108 | $this->errors = array(); |
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| 109 | } |
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| 110 | |
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| 111 | /** |
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| 112 | * Prints the HTML for displaying error messages. |
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| 113 | * |
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| 114 | * @access public |
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| 115 | * @author Quinn Comendant <quinn@strangecode.com> |
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| 116 | * @since 15 Jul 2005 01:39:14 |
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| 117 | */ |
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| 118 | function printErrorMessages() |
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| 119 | { |
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[136] | 120 | $app =& App::getInstance(); |
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[1] | 121 | if ($this->anyErrors()) { |
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[166] | 122 | ?><div class="sc-msg" id="sc-msg-formvalidator"><?php |
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[1] | 123 | $errors = $this->getErrorList(); |
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[136] | 124 | foreach ($errors as $e) { |
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| 125 | if ('' != $e['message'] && is_string($e['message'])) { |
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| 126 | if (error_reporting() > 0 && $app->getParam('display_errors') && isset($e['file']) && isset($e['line'])) { |
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| 127 | echo "\n<!-- [" . $e['file'] . ' : ' . $e['line'] . '] -->'; |
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[1] | 128 | } |
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[136] | 129 | switch ($e['type']) { |
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[1] | 130 | case MSG_ERR: |
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[136] | 131 | echo '<div class="sc-msg-error">' . $e['message'] . '</div>'; |
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[1] | 132 | break; |
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[42] | 133 | |
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[1] | 134 | case MSG_WARNING: |
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[136] | 135 | echo '<div class="sc-msg-warning">' . $e['message'] . '</div>'; |
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[1] | 136 | break; |
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[42] | 137 | |
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[1] | 138 | case MSG_SUCCESS: |
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[136] | 139 | echo '<div class="sc-msg-success">' . $e['message'] . '</div>'; |
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[1] | 140 | break; |
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[42] | 141 | |
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[1] | 142 | case MSG_NOTICE: |
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| 143 | default: |
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[136] | 144 | echo '<div class="sc-msg-notice">' . $e['message'] . '</div>'; |
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[1] | 145 | break; |
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| 146 | } |
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| 147 | } |
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| 148 | } |
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| 149 | ?></div><?php |
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| 150 | } |
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| 151 | } |
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[42] | 152 | |
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[1] | 153 | /** |
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| 154 | * If this form has an error, print an error marker like "<<". |
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| 155 | * |
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| 156 | * @param string $form_name the name of the incoming form variable |
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| 157 | * @param string $marker A string to print if there is an error. if |
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| 158 | * not provided, use default. |
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| 159 | */ |
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| 160 | function err($form_name, $marker=null) |
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| 161 | { |
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| 162 | if ($this->anyErrors($form_name)) { |
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| 163 | if (isset($marker)) { |
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| 164 | echo $marker; |
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| 165 | } else { |
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[96] | 166 | echo $this->marker; |
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[1] | 167 | } |
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| 168 | } |
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| 169 | } |
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| 170 | |
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| 171 | /** |
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[144] | 172 | * Ensure the length of string is non-zero. |
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[1] | 173 | * |
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| 174 | * @param string $form_name the name of the incoming form variable |
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| 175 | * @param string $msg the message to display on error |
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| 176 | * |
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| 177 | * @return bool true if form is not empty, false otherwise. |
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| 178 | */ |
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| 179 | function notEmpty($form_name, $msg='') |
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| 180 | { |
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[144] | 181 | if (parent::notEmpty(getFormData($form_name))) { |
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[1] | 182 | return true; |
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| 183 | } else { |
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[144] | 184 | $this->addError($form_name, $msg); |
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[1] | 185 | return false; |
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| 186 | } |
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| 187 | } |
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[144] | 188 | |
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| 189 | /* |
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| 190 | * We were using the isEmpty method *wrong* all these years and should have been using notEmpty. |
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| 191 | * But the fact is the only use is to ensure a value is not empty, so this function simply becomes |
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| 192 | * an alias of the one-true notEmpty() function. |
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| 193 | * @since 03 Jun 2006 22:56:46 |
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| 194 | */ |
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[1] | 195 | function isEmpty($form_name, $msg='') |
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| 196 | { |
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[144] | 197 | $this->notEmpty($form_name, $msg=''); |
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[1] | 198 | } |
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| 199 | |
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| 200 | /** |
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| 201 | * Check whether input is a string. |
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| 202 | * |
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| 203 | * @param string $form_name the name of the incoming form variable |
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| 204 | * @param string $msg the message to display on error |
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| 205 | * |
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| 206 | * @return bool true if form is a string, false otherwise. |
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| 207 | */ |
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| 208 | function isString($form_name, $msg='') |
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| 209 | { |
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[144] | 210 | if (parent::isString(getFormData($form_name))) { |
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| 211 | return true; |
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| 212 | } else { |
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[1] | 213 | $this->addError($form_name, $msg); |
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| 214 | return false; |
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| 215 | } |
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| 216 | } |
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| 217 | |
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| 218 | /** |
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| 219 | * Check whether input is a number. Allows negative numbers. |
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| 220 | * |
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| 221 | * @param string $form_name the name of the incoming form variable |
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| 222 | * @param string $msg the message to display on error |
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| 223 | * |
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| 224 | * @return bool true if no errors found, false otherwise |
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| 225 | */ |
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| 226 | function isNumber($form_name, $msg='') |
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| 227 | { |
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[144] | 228 | if (parent::isNumber(getFormData($form_name))) { |
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| 229 | return true; |
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| 230 | } else { |
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[1] | 231 | $this->addError($form_name, $msg); |
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| 232 | return false; |
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| 233 | } |
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| 234 | } |
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| 235 | |
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| 236 | /** |
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| 237 | * addError if input is NOT an integer. Don't just use is_int() because the |
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| 238 | * data coming from the user is *really* a string. |
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| 239 | * |
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| 240 | * @param string $form_name the name of the incoming form variable |
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| 241 | * @param string $msg the message to display on error |
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| 242 | * |
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| 243 | * @return bool true if value is an integer |
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| 244 | */ |
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| 245 | function isInteger($form_name, $msg='', $negative_ok=false) |
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| 246 | { |
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[144] | 247 | if (parent::isInteger(getFormData($form_name), $negative_ok)) { |
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| 248 | return true; |
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| 249 | } else { |
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[1] | 250 | $this->addError($form_name, $msg); |
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| 251 | return false; |
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| 252 | } |
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| 253 | } |
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| 254 | |
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| 255 | /** |
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| 256 | * Check whether input is a float. Don't just use is_float() because the |
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[42] | 257 | * data coming from the user is *really* a string. Integers will also |
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[1] | 258 | * pass this test. |
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| 259 | * |
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| 260 | * @param string $form_name the name of the incoming form variable |
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| 261 | * @param string $msg the message to display on error |
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| 262 | * |
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| 263 | * @return bool true if value is a float |
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| 264 | */ |
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| 265 | function isFloat($form_name, $msg='', $negative_ok=false) |
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| 266 | { |
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[144] | 267 | if (parent::isFloat(getFormData($form_name), $negative_ok)) { |
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| 268 | return true; |
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| 269 | } else { |
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[1] | 270 | $this->addError($form_name, $msg); |
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| 271 | return false; |
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| 272 | } |
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| 273 | } |
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| 274 | |
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| 275 | /** |
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| 276 | * Check whether input is an array. |
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| 277 | * |
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| 278 | * @param string $form_name the name of the incoming form variable |
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| 279 | * @param string $msg the message to display on error |
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| 280 | * |
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| 281 | * @return bool true if value is a float |
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| 282 | */ |
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| 283 | function isArray($form_name, $msg='') |
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| 284 | { |
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[144] | 285 | if (parent::isArray(getFormData($form_name))) { |
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| 286 | return true; |
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| 287 | } else { |
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[1] | 288 | $this->addError($form_name, $msg); |
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| 289 | return false; |
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| 290 | } |
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| 291 | } |
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[42] | 292 | |
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[1] | 293 | /** |
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| 294 | * Check whether input matches the specified perl regular expression |
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[42] | 295 | * pattern. |
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[1] | 296 | * |
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| 297 | * @param string $form_name the name of the incoming form variable |
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| 298 | * @param int $regex perl regex that the string must match |
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[144] | 299 | * @param bool $valid_on_match set to false to be valid if match, or true |
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[1] | 300 | * to be valid on no match |
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| 301 | * @param string $msg the message to display on error |
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| 302 | * |
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| 303 | * @return bool true if value passes regex test |
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| 304 | */ |
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[144] | 305 | function checkRegex($form_name, $regex, $valid_on_match, $msg='') |
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[1] | 306 | { |
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[144] | 307 | if (parent::checkRegex(getFormData($form_name), $regex, $valid_on_match)) { |
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| 308 | return true; |
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[1] | 309 | } else { |
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[144] | 310 | $this->addError($form_name, $msg); |
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| 311 | return false; |
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[1] | 312 | } |
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| 313 | } |
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[42] | 314 | |
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[1] | 315 | /** |
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| 316 | * Tests if the string length is between specified values. Whitespace excluded for min. |
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| 317 | * |
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| 318 | * @param string $form_name the name of the incoming form variable |
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| 319 | * @param int $min minimum length of string, inclusive |
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| 320 | * @param int $max maximum length of string, inclusive |
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| 321 | * @param string $msg the message to display on error |
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| 322 | * |
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| 323 | * @return bool true if string length is within given boundaries |
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| 324 | */ |
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| 325 | function stringLength($form_name, $min, $max, $msg='') |
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| 326 | { |
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[144] | 327 | if (parent::stringLength(getFormData($form_name), $min, $max)) { |
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| 328 | return true; |
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| 329 | } else { |
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[1] | 330 | $this->addError($form_name, $msg); |
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| 331 | return false; |
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| 332 | } |
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| 333 | } |
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| 334 | |
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| 335 | /** |
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| 336 | * Check whether input is within a valid numeric range. |
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| 337 | * |
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| 338 | * @param string $form_name the name of the incoming form variable |
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| 339 | * @param int $min minimum value of number, inclusive |
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| 340 | * @param int $max maximum value of number, inclusive |
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| 341 | * @param string $msg the message to display on error |
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| 342 | * |
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| 343 | * @return bool true if no errors found, false otherwise |
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| 344 | */ |
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| 345 | function numericRange($form_name, $min, $max, $msg='') |
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| 346 | { |
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[144] | 347 | if (parent::numericRange(getFormData($form_name), $min, $max)) { |
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[1] | 348 | return true; |
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| 349 | } else { |
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[144] | 350 | $this->addError($form_name, $msg); |
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[1] | 351 | return false; |
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| 352 | } |
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| 353 | } |
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| 354 | |
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| 355 | /** |
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[23] | 356 | * Validates an email address based on the recommendations in RFC 3696. |
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[42] | 357 | * Is more loose than restrictive, to allow the many valid variants of |
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[23] | 358 | * email addresses while catching the most common mistakes. |
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| 359 | * http://www.faqs.org/rfcs/rfc822.html |
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| 360 | * http://www.faqs.org/rfcs/rfc2822.html |
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| 361 | * http://www.faqs.org/rfcs/rfc3696.html |
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| 362 | * http://www.faqs.org/rfcs/rfc1035.html |
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[1] | 363 | * |
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[23] | 364 | * @access public |
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| 365 | * @param string $form_name The name of the incoming form variable. |
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| 366 | * @return bool Validity of address. |
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| 367 | * @author Quinn Comendant <quinn@strangecode.com> |
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[1] | 368 | */ |
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[23] | 369 | function validateEmail($form_name) |
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[1] | 370 | { |
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[136] | 371 | $app =& App::getInstance(); |
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[144] | 372 | |
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[1] | 373 | $email = getFormData($form_name); |
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[144] | 374 | |
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[1] | 375 | if ('' == trim($email)) { |
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[144] | 376 | // No email address provided, and that's okay |
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| 377 | return true; |
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[1] | 378 | } |
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[23] | 379 | |
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[144] | 380 | // Validator::validateEmail() returns a value that relates to the VALIDATE_EMAIL_* constants (defined in Validator.inc.php). |
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| 381 | switch (parent::validateEmail($email)) { |
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| 382 | case VALIDATE_EMAIL_REGEX_FAIL: |
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| 383 | // Failed regex match. |
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| 384 | $this->addError($form_name, sprintf(_("<em>%s</em> is not a valid email address."), oTxt($email))); |
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[136] | 385 | $app->logMsg(sprintf('The email address %s is not valid.', getFormData($form_name)), LOG_DEBUG, __FILE__, __LINE__); |
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[23] | 386 | return false; |
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[144] | 387 | break; |
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| 388 | case VALIDATE_EMAIL_LENGTH_FAIL : |
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| 389 | // Failed length requirements. |
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| 390 | $this->addError($form_name, sprintf(_("<em>Email address</em> must contain less than 256 characters."), oTxt($email))); |
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[136] | 391 | $app->logMsg(sprintf('The email address %s must contain less than 256 characters.', getFormData($form_name)), LOG_DEBUG, __FILE__, __LINE__); |
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[1] | 392 | return false; |
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[144] | 393 | break; |
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| 394 | case VALIDATE_EMAIL_MX_FAIL : |
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| 395 | // Failed MX record test. |
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| 396 | $this->addError($form_name, sprintf(_("<em>%s</em> is not a valid email domain name"), oTxt($domain))); |
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[136] | 397 | $app->logMsg(sprintf('The email address %s contains an invalid email domain name (%s).', getFormData($form_name), $domain), LOG_INFO, __FILE__, __LINE__); |
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[23] | 398 | return false; |
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[144] | 399 | break; |
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| 400 | case VALIDATE_EMAIL_SUCCESS : |
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| 401 | default : |
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| 402 | return true; |
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| 403 | break; |
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[1] | 404 | } |
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| 405 | } |
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| 406 | |
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| 407 | /** |
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| 408 | * Check whether input is a valid phone number. Notice: it is now set |
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| 409 | * to allow characters like - or () or + so people can type in a phone |
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[144] | 410 | * number that looks like: +1 (530) 555-1212 |
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[1] | 411 | * |
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| 412 | * @param string $form_name the name of the incoming form variable |
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| 413 | * |
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| 414 | * @return bool true if no errors found, false otherwise |
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| 415 | */ |
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| 416 | function validatePhone($form_name) |
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| 417 | { |
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| 418 | $phone = getFormData($form_name); |
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[42] | 419 | |
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[144] | 420 | return ( |
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| 421 | $this->checkRegex($form_name, '/^[0-9 +().-]*$/', true, sprintf(_("The phone number <em>%s</em> is not valid."), $phone)) |
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| 422 | && $this->stringLength($form_name, 0, 25, sprintf(_("The phone number <em>%s</em> is too long"), $phone)) |
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| 423 | ); |
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[1] | 424 | } |
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| 425 | |
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| 426 | /** |
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| 427 | * Verifies that date can be processed by the strtotime function. |
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| 428 | * |
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| 429 | * @param string $form_name the name of the incoming form variable |
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| 430 | * @param string $msg the message to display on error |
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| 431 | * |
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| 432 | * @return bool true if no errors found, false otherwise |
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| 433 | */ |
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| 434 | function validateStrDate($form_name, $msg='') |
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| 435 | { |
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[144] | 436 | $app =& App::getInstance(); |
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| 437 | |
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| 438 | if (parent::validateStrDate(getFormData($form_name))) { |
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| 439 | return true; |
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| 440 | } else { |
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[1] | 441 | $this->addError($form_name, $msg); |
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[136] | 442 | $app->logMsg(sprintf('The string date %s is not valid.', getFormData($form_name)), LOG_DEBUG, __FILE__, __LINE__); |
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[1] | 443 | return false; |
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| 444 | } |
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| 445 | } |
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[42] | 446 | |
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| 447 | |
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[1] | 448 | /** |
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| 449 | * Verifies credit card number. |
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| 450 | * |
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| 451 | * @param string $form_name The name of the incoming form variable. |
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[144] | 452 | * @param string $cc_type Optional, card type to do specific checks. One of the CC_TYPE_* constants. |
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[1] | 453 | * |
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| 454 | * @return bool true if no errors found, false otherwise |
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| 455 | */ |
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[144] | 456 | function validateCCNumber($form_name, $cc_type=null) |
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[1] | 457 | { |
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[144] | 458 | $cc_num = getFormData($form_name); |
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| 459 | |
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| 460 | if (parent::validateCCNumber($cc_num, $cc_type)) { |
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[1] | 461 | return true; |
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| 462 | } else { |
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[144] | 463 | $this->addError($form_name, sprintf(_("<em>%s</em> is not a valid credit card number."), $cc_num)); |
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[1] | 464 | return false; |
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| 465 | } |
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| 466 | } |
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| 467 | |
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| 468 | /** |
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[136] | 469 | * Check whether a file was selected for uploading. If file is missing, it's an error. |
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[1] | 470 | * |
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| 471 | * @param string $form_name the name of the incoming form variable |
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| 472 | * @param string $msg the message to display on error |
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| 473 | * |
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| 474 | * @return bool true if no errors found, false otherwise |
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| 475 | */ |
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[144] | 476 | function fileUploaded($form_name, $msg='') |
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[1] | 477 | { |
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[144] | 478 | if (parent::fileUploaded($form_name)) { |
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| 479 | return true; |
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| 480 | } else { |
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[1] | 481 | $this->addError($form_name, $msg); |
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| 482 | return false; |
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| 483 | } |
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| 484 | } |
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[42] | 485 | |
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[1] | 486 | } // THE END |
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| 487 | |
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| 488 | ?> |
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