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[squirrelmail.git] / functions / forms.php
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493b168d 1<?php
4b4abf93 2
493b168d 3/**
ed6d3334 4 * forms.php - html form functions
493b168d 5 *
ba556ce5 6 * Functions to build forms in a safe and consistent manner.
15623730 7 * All attribute values are sanitized with htmlspecialchars().
ba556ce5 8//FIXME: I think the Template class might be better place to sanitize inside assign() method
493b168d 9 *
ed6d3334 10 * Currently functions don't provide simple wrappers for file and
11 * image input fields, support only submit and reset buttons and use
15623730 12 * html input tags for buttons.
ed6d3334 13 *
574240f5 14 * Since 1.5.1:
15 *
16 * * all form functions should support id tags. Original
17 * idea by dugan <at> passwall.com. Tags can be used for Section 508
18 * or WAI compliance.
19 *
20 * * input tag functions accept extra html attributes that can be submitted
21 * in $aAttribs array.
22 *
23 * * default css class attributes are added.
ed6d3334 24 *
25 * @link http://www.section508.gov/ Section 508
26 * @link http://www.w3.org/WAI/ Web Accessibility Initiative (WAI)
27 * @link http://www.w3.org/TR/html4/ W3.org HTML 4.01 form specs
4b5049de 28 * @copyright &copy; 2004-2007 The SquirrelMail Project Team
4b4abf93 29 * @license http://opensource.org/licenses/gpl-license.php GNU Public License
74f5d33f 30 * @version $Id$
493b168d 31 * @package squirrelmail
74f5d33f 32 * @subpackage forms
ed6d3334 33 * @since 1.4.3 and 1.5.1
493b168d 34 */
35
36/**
37 * Helper function to create form fields, not to be called directly,
38 * only by other functions below.
574240f5 39 *
40 * Function used different syntax before 1.5.1
41 * @param string $sType type of input field. Possible values (html 4.01
ed6d3334 42 * specs.): text, password, checkbox, radio, submit, reset, file,
43 * hidden, image, button.
574240f5 44 * @param array $aAttribs (since 1.5.1) extra attributes. Array key is
45 * attribute name, array value is attribute value. Array keys must use
46 * lowercase.
ed6d3334 47 * @return string html formated input field
48 * @deprecated use other functions that provide simple wrappers to this function
493b168d 49 */
574240f5 50function addInputField($sType, $aAttribs=array()) {
51 $sAttribs = '';
52 // define unique identifier
53 if (! isset($aAttribs['id']) && isset($aAttribs['name']) && ! is_null($aAttribs['name'])) {
5f817a0b 54 /**
55 * if 'id' is not set, set it to 'name' and replace brackets
56 * with underscores. 'name' might contain field name with squire
57 * brackets (array). Brackets are not allowed in id (validator.w3.org
58 * fails to validate document). According to html 4.01 manual cdata
59 * type description, 'name' attribute uses same type, but validator.w3.org
60 * does not barf on brackets in 'name' attributes.
61 */
62 $aAttribs['id'] = strtr($aAttribs['name'],'[]','__');
574240f5 63 }
ba556ce5 64
65 global $oTemplate;
66
67 $oTemplate->assign('type', $sType);
68//FIXME: all the values in the $aAttribs list used to go thru htmlspecialchars()... I would propose that most everything that is assigned to the template should go thru that *in the template class* on its way between here and the actual template file. Otherwise we have to do something like: foreach ($aAttribs as $key => $value) $aAttribs[$key] = htmlspecialchars($value);
69 $oTemplate->assign('aAttribs', $aAttribs);
70
71 return $oTemplate->fetch('input.tpl');
72
493b168d 73}
74
10ff256e 75/**
76 * Password input field
574240f5 77 * @param string $sName field name
78 * @param string $sValue initial password value
79 * @param array $aAttribs (since 1.5.1) extra attributes
ed6d3334 80 * @return string html formated password field
10ff256e 81 */
574240f5 82function addPwField($sName, $sValue = null, $aAttribs=array()) {
83 $aAttribs['name'] = $sName;
84 $aAttribs['value'] = (! is_null($sValue) ? $sValue : '');
85 // add default css
86 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmpwfield';
87 return addInputField('password',$aAttribs);
10ff256e 88}
89
493b168d 90/**
91 * Form checkbox
574240f5 92 * @param string $sName field name
93 * @param boolean $bChecked controls if field is checked
94 * @param string $sValue
95 * @param array $aAttribs (since 1.5.1) extra attributes
ed6d3334 96 * @return string html formated checkbox field
493b168d 97 */
574240f5 98function addCheckBox($sName, $bChecked = false, $sValue = null, $aAttribs=array()) {
99 $aAttribs['name'] = $sName;
100 if ($bChecked) $aAttribs['checked'] = 'checked';
101 if (! is_null($sValue)) $aAttribs['value'] = $sValue;
102 // add default css
103 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmcheckbox';
104 return addInputField('checkbox',$aAttribs);
493b168d 105}
106
107/**
108 * Form radio box
574240f5 109 * @param string $sName field name
110 * @param boolean $bChecked controls if field is selected
111 * @param string $sValue
112 * @param array $aAttribs (since 1.5.1) extra attributes.
ed6d3334 113 * @return string html formated radio box
493b168d 114 */
574240f5 115function addRadioBox($sName, $bChecked = false, $sValue = null, $aAttribs=array()) {
116 $aAttribs['name'] = $sName;
117 if ($bChecked) $aAttribs['checked'] = 'checked';
118 if (! is_null($sValue)) $aAttribs['value'] = $sValue;
119 if (! isset($aAttribs['id'])) $aAttribs['id'] = $sName . $sValue;
120 // add default css
121 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmradiobox';
122 return addInputField('radio', $aAttribs);
493b168d 123}
124
125/**
126 * A hidden form field.
574240f5 127 * @param string $sName field name
128 * @param string $sValue field value
129 * @param array $aAttribs (since 1.5.1) extra attributes
ed6d3334 130 * @return html formated hidden form field
493b168d 131 */
574240f5 132function addHidden($sName, $sValue, $aAttribs=array()) {
133 $aAttribs['name'] = $sName;
134 $aAttribs['value'] = $sValue;
135 // add default css
136 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmhiddenfield';
137 return addInputField('hidden', $aAttribs);
493b168d 138}
139
140/**
141 * An input textbox.
574240f5 142 * @param string $sName field name
143 * @param string $sValue initial field value
144 * @param integer $iSize field size (number of characters)
145 * @param integer $iMaxlength maximum number of characters the user may enter
87745b9c 146 * @param array $aAttribs (since 1.5.1) extra attributes - should be given
147 * in the form array('attribute_name' => 'attribute_value', ...)
ed6d3334 148 * @return string html formated text input field
493b168d 149 */
574240f5 150function addInput($sName, $sValue = '', $iSize = 0, $iMaxlength = 0, $aAttribs=array()) {
151 $aAttribs['name'] = $sName;
152 $aAttribs['value'] = $sValue;
153 if ($iSize) $aAttribs['size'] = (int)$iSize;
154 if ($iMaxlength) $aAttribs['maxlength'] = (int)$iMaxlength;
155 // add default css
156 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmtextfield';
157 return addInputField('text', $aAttribs);
493b168d 158}
159
493b168d 160/**
161 * Function to create a selectlist from an array.
574240f5 162 * @param string $sName field name
ba556ce5 163 * @param array $aValues field values array(key => value) -> <option value="key">value</option>, although if $bUsekeys is FALSE, then <option value="value">value</option>
ed6d3334 164 * @param mixed $default the key that will be selected
574240f5 165 * @param boolean $bUsekeys use the keys of the array as option value or not
166 * @param array $aAttribs (since 1.5.1) extra attributes
02ded2ae 167 *
ed6d3334 168 * @return string html formated selection box
574240f5 169 * @todo add attributes argument for option tags and default css
493b168d 170 */
574240f5 171function addSelect($sName, $aValues, $default = null, $bUsekeys = false, $aAttribs = array()) {
493b168d 172 // only one element
574240f5 173 if(count($aValues) == 1) {
174 $k = key($aValues); $v = array_pop($aValues);
175 return addHidden($sName, ($bUsekeys ? $k:$v), $aAttribs).
745eb9e2 176 htmlspecialchars($v) . "\n";
493b168d 177 }
178
ba556ce5 179 global $oTemplate;
ed6d3334 180
ba556ce5 181//FIXME: all the values in the $aAttribs list and $sName and both the keys and values in $aValues used to go thru htmlspecialchars()... I would propose that most everything that is assigned to the template should go thru that *in the template class* on its way between here and the actual template file. Otherwise we have to do something like: foreach ($aAttribs as $key => $value) $aAttribs[$key] = htmlspecialchars($value); $sName = htmlspecialchars($sName); $aNewValues = array(); foreach ($aValues as $key => $value) $aNewValues[htmlspecialchars($key)] = htmlspecialchars($value); $aValues = $aNewValues; And probably this too because it has to be matched to a value that has already been sanitized: $default = htmlspecialchars($default);
182 $oTemplate->assign('aAttribs', $aAttribs);
183 $oTemplate->assign('aValues', $aValues);
184 $oTemplate->assign('bUsekeys', $bUsekeys);
185 $oTemplate->assign('default', $default);
186 $oTemplate->assign('name', $sName);
574240f5 187
ba556ce5 188 return $oTemplate->fetch('select.tpl');
493b168d 189}
190
191/**
02ded2ae 192 * Normal button
193 *
194 * Note the switched value/name parameters!
195 * Note also that regular buttons are not very useful unless
196 * used with onclick handlers, thus are only really appropriate
197 * if you use them after having checked if JavaScript is turned
198 * on by doing this: if (checkForJavascript()) ...
199 *
200 * @param string $sValue button name
201 * @param string $sName key name
202 * @param array $aAttribs extra attributes
203 *
204 * @return string html formated submit input field
205 *
206 * @since 1.5.2
207 */
208function addButton($sValue, $sName = null, $aAttribs=array()) {
209 $aAttribs['value'] = $sValue;
210 if (! is_null($sName)) $aAttribs['name'] = $sName;
211 // add default css
212 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmsubmitfield';
213 return addInputField('button', $aAttribs);
214}
215
216/**
10ff256e 217 * Form submission button
218 * Note the switched value/name parameters!
574240f5 219 * @param string $sValue button name
220 * @param string $sName submitted key name
221 * @param array $aAttribs (since 1.5.1) extra attributes
ed6d3334 222 * @return string html formated submit input field
10ff256e 223 */
574240f5 224function addSubmit($sValue, $sName = null, $aAttribs=array()) {
225 $aAttribs['value'] = $sValue;
226 if (! is_null($sName)) $aAttribs['name'] = $sName;
227 // add default css
228 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmsubmitfield';
229 return addInputField('submit', $aAttribs);
10ff256e 230}
02ded2ae 231
10ff256e 232/**
ed6d3334 233 * Form reset button
574240f5 234 * @param string $sValue button name
235 * @param array $aAttribs (since 1.5.1) extra attributes
ed6d3334 236 * @return string html formated reset input field
10ff256e 237 */
574240f5 238function addReset($sValue, $aAttribs=array()) {
239 $aAttribs['value'] = $sValue;
240 // add default css
241 if (! isset($aAttribs['class'])) $aAttribs['class'] = 'sqmresetfield';
242 return addInputField('reset', $aAttribs);
10ff256e 243}
244
245/**
493b168d 246 * Textarea form element.
ba556ce5 247 *
248 * @param string $sName field name
249 * @param string $sText initial field value (OPTIONAL; default empty)
250 * @param integer $iCols field width (number of chars) (OPTIONAL; default 40)
251 * @param integer $iRows field height (number of character rows) (OPTIONAL; default 10)
252 * @param array $aAttribs (since 1.5.1) extra attributes (OPTIONAL; default empty)
253 *
ed6d3334 254 * @return string html formated text area field
ba556ce5 255 *
493b168d 256 */
574240f5 257function addTextArea($sName, $sText = '', $iCols = 40, $iRows = 10, $aAttribs = array()) {
ba556ce5 258
259 // no longer accept string arguments for attribs; print
260 // backtrace to help people fix their code
02ded2ae 261 //FIXME: throw error instead?
ba556ce5 262 if (!is_array($aAttribs)) {
263 echo '$aAttribs argument to addTextArea() must be an array<br /><pre>';
264 debug_print_backtrace();
265 echo '</pre><br />';
266 exit;
ed6d3334 267 }
ba556ce5 268
02ded2ae 269 // add default css
ba556ce5 270 else if (!isset($aAttribs['class'])) $aAttribs['class'] = 'sqmtextarea';
271
272 global $oTemplate;
273
274//FIXME: all the values in the $aAttribs list as well as $sName and $sText used to go thru htmlspecialchars()... I would propose that most everything that is assigned to the template should go thru that *in the template class* on its way between here and the actual template file. Otherwise we have to do something like: foreach ($aAttribs as $key => $value) $aAttribs[$key] = htmlspecialchars($value); $sName = htmlspecialchars($sName); $sText = htmlspecialchars($sText);
275 $oTemplate->assign('aAttribs', $aAttribs);
276 $oTemplate->assign('name', $sName);
277 $oTemplate->assign('text', $sText);
278 $oTemplate->assign('cols', (int)$iCols);
279 $oTemplate->assign('rows', (int)$iRows);
280
281 return $oTemplate->fetch('textarea.tpl');
493b168d 282}
283
284/**
285 * Make a <form> start-tag.
ba556ce5 286 *
287 * @param string $sAction form handler URL
288 * @param string $sMethod http method used to submit form data. 'get' or 'post'
289 * @param string $sName form name used for identification (used for backward
290 * compatibility). Use of id is recommended instead.
574240f5 291 * @param string $sEnctype content type that is used to submit data. html 4.01
ba556ce5 292 * defaults to 'application/x-www-form-urlencoded'. Form
293 * with file field needs 'multipart/form-data' encoding type.
574240f5 294 * @param string $sCharset charset that is used for submitted data
ba556ce5 295 * @param array $aAttribs (since 1.5.1) extra attributes
296 *
ed6d3334 297 * @return string html formated form start string
ba556ce5 298 *
493b168d 299 */
574240f5 300function addForm($sAction, $sMethod = 'post', $sName = '', $sEnctype = '', $sCharset = '', $aAttribs = array()) {
574240f5 301
ba556ce5 302 global $oTemplate;
574240f5 303
ba556ce5 304//FIXME: all the values in the $aAttribs list as well as $charset used to go thru htmlspecialchars()... I would propose that most everything that is assigned to the template should go thru that *in the template class* on its way between here and the actual template file. Otherwise we have to do something like: foreach ($aAttribs as $key => $value) $aAttribs[$key] = htmlspecialchars($value); $sCharset = htmlspecialchars($sCharset);
305 $oTemplate->assign('aAttribs', $aAttribs);
306 $oTemplate->assign('name', $sName);
307 $oTemplate->assign('method', $sMethod);
308 $oTemplate->assign('action', $sAction);
309 $oTemplate->assign('enctype', $sEnctype);
310 $oTemplate->assign('charset', $sCharset);
493b168d 311
ba556ce5 312 return $oTemplate->fetch('form.tpl');
493b168d 313}
ba556ce5 314