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Revision 756

Added by thorn over 17 years ago

call_captcha: added parameter 'style', fixed some issue with parameter 'image' and text-style captchas

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trunk/CHANGELOG
13 13 
------------------------------------- 2.7.0 -------------------------------------
14 14 
15-Mar-2008 Thomas Hornik
15 15 
#	menulink: link can be menulink or subpage of menulink, too
16 
#	call_captcha: added parameter 'style', fixed some issue with parameter 'image' and text-style captchas
16 17 
13-Mar-2008 Christian Sommer
17 18 
! 	adjusted error/warning templates to the updated backend layout
18 19 
13-Mar-2008 Matthias Gallas
trunk/wb/include/captcha/captcha.php
79 79 
}
80 80 

  		




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if(!function_exists('call_captcha')) {


  		




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	function call_captcha($action='all') {


  		




  
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	function call_captcha($action='all', $style='') {


  		




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		global $MOD_CAPTCHA;


  		




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		$t = time();


  		




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		$_SESSION['captcha_time'] = $t;


  		




  ......




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				case 'text': // text-captcha


  		




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					?><table class="captcha_table"><tr>


  		




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					<td class="text_captcha"><?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?></td>


  		




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					<td><input type="text" name="captcha" maxlength="50"  style="width:150px" /></td>


  		




  
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					<td><input type="text" name="captcha" maxlength="50"  style="width:150px;" /></td>


  		




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					<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_QUEST']; ?></td>


  		




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					</tr></table><?php


  		




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					break;


  		




  ......




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				case 'calc_text': // calculation as text


  		




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					?><table class="captcha_table"><tr>


  		




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					<td class="text_captcha"><?php include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php'); ?>&nbsp;=&nbsp;</td>


  		




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					<td><input type="text" name="captcha" maxlength="10"  style="width:20px" /></td>


  		




  
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					<td><input type="text" name="captcha" maxlength="10"  style="width:20px;" /></td>


  		




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					<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_RES']; ?></td>


  		




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					</tr></table><?php


  		




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					break;


  		




  ......




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				case 'calc_ttf_image': // calculation with varying background and ttf-font


  		




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					?><table class="captcha_table"><tr>


  		




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					<td class="image_captcha"><img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t"; ?>" alt="Captcha" /></td><td>&nbsp;=&nbsp;</td>


  		




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					<td><input type="text" name="captcha" maxlength="10" style="width:20px" /></td>


  		




  
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					<td><input type="text" name="captcha" maxlength="10" style="width:20px;" /></td>


  		




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					<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_RES']; ?></td>


  		




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					</tr></table><?php


  		




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					break;


  		




  ......




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				case 'old_image': // old captcha


  		




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					?><table class="captcha_table"><tr>


  		




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					<td class="image_captcha"><img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t"; ?>" alt="Captcha" /></td>


  		




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					<td><input type="text" name="captcha" maxlength="10" style="width:50px" /></td>


  		




  
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					<td><input type="text" name="captcha" maxlength="10" style="width:50px;" /></td>


  		




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					<td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_TEXT']; ?></td>


  		




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					</tr></table><?php


  		




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					break;


  		




  ......




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			switch(CAPTCHA_TYPE) {


  		




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				case 'text': // text-captcha


  		




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				case 'calc_text': // calculation as text


  		




  
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					echo ($style?"<span $style>":'');


  		




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					include(WB_PATH.'/include/captcha/captchas/'.CAPTCHA_TYPE.'.php');


  		




  
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					echo ($style?'</span>':'');


  		




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					break;


  		




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				case 'calc_image': // calculation with image (old captcha)


  		




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				case 'calc_ttf_image': // calculation with varying background and ttf-font


  		




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				case 'ttf_image': // captcha with varying background and ttf-font


  		




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				case 'old_image': // old captcha


  		




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					echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t";


  		




  
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					echo "<img $style src=\"".WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t\" />";


  		




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					break;


  		




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			}


  		




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		} elseif($action=='input') {


  		




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			switch(CAPTCHA_TYPE) {


  		




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				case 'text': // text-captcha


  		




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					?><input type="text" name="captcha" maxlength="50"  style="width:150px" /><?php


  		




  
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					echo '<input type="text" name="captcha" '.($style?$style:'style="width:150px;" maxlength="50"').' />';


  		




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					break;


  		




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				case 'calc_text': // calculation as text


  		




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					?><input type="text" name="captcha" maxlength="10"  style="width:20px" /><?php


  		




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					break;


  		




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				case 'calc_image': // calculation with image (old captcha)


  		




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				case 'calc_ttf_image': // calculation with varying background and ttf-font


  		




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					?><input type="text" name="captcha" maxlength="10" style="width:20px" /><?php


  		




  
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					echo '<input type="text" name="captcha" '.($style?$style:'style="width:20px;" maxlength="10"').' />';


  		




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					break;


  		




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				// normal images


  		




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				case 'ttf_image': // captcha with varying background and ttf-font


  		




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				case 'old_image': // old captcha


  		




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					?><input type="text" name="captcha" maxlength="10" style="width:50px" /><?php


  		




  
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					echo '<input type="text" name="captcha" '.($style?$style:'style="width:50px;" maxlength="10"').' />';


  		




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					break;


  		




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			}


  		




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		} elseif($action=='text') {


  		




  
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			echo ($style?"<span $style>":'');


  		




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			switch(CAPTCHA_TYPE) {


  		




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				// one special case


  		




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				case 'text': // text-captcha


  		




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					echo $MOD_CAPTCHA['VERIFICATION_INFO_QUEST'];


  		




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					break;


  		




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				// two special cases


  		




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				case 'calc_text': // calculation as text


  		




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					echo $MOD_CAPTCHA['VERIFICATION_INFO_RES'];


  		




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					break;


  		




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				case 'calc_image': // calculation with image (old captcha)


  		




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				case 'calc_ttf_image': // calculation with varying background and ttf-font


  		




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					echo $MOD_CAPTCHA['VERIFICATION_INFO_RES'];


  		




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					break;


  		




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				// normal images


  		




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				case 'ttf_image': // captcha with varying background and ttf-font


  		




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				case 'old_image': // old captcha


  		




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					echo $MOD_CAPTCHA['VERIFICATION_INFO_TEXT'];


  		




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					break;


  		




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			}


  		




  
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			echo ($style?'</span>':'');


  		




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		}


  		




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	}


  		




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}


  		












  

    
      trunk/wb/include/captcha/readme.txt
    
  





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One can improve CAPTCHA-type "CAPTCHA with varying fonts and backgrounds"


  		




  
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One can improve all CAPTCHA-types with varying fonts and backgrounds


  		




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- by adding backgrounds (PNG-images, 140x40 pixels) to backgrounds/


  		




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- and by adding TrueType-fonts to fonts/


  		




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How to use:


  		




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use 


  		




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	require_once(WB_PATH.'/include/captcha/captcha.php'); // will output a table with 3 columns: |CAPTCHA|Input|Text|. The calc_image captcha have 4 columns |CAPTCHA|=|Input|Text|.


  		




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and put 


  		




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	<?php call_captcha(); ?>


  		




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into your form.


  		




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1.)


  		




  
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put 


  		




  
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  require_once(WB_PATH.'/include/captcha/captcha.php');


  		




  
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in your file.


  		




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The CAPTCHA-code is allways stored in $_SESSION['captcha']


  		




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The user-input is in $_POST['captcha'] (or $_GET['captcha']).


  		




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call_captcha() will output code like this


  		




  
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2a.)


  		




  
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put 


  		




  
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  <?php call_captcha(); ?>


  		




  
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into your form.


  		




  
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This will output a table with varying columns (3 or 4) like this example:


  		




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<table class="captcha_table"><tr>


  		




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  <td><img src="<?php echo WB_URL.'/include/captcha/captchas/'.CAPTCHA_TYPE.".php?t=$t"; ?>" alt="Captcha" /></td>


  		




  
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  <td><img src="http://www.example.org/include/captcha/captchas/ttf.php?t=64241454" alt="Captcha" /></td>


  		




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  <td><input type="text" name="captcha" maxlength="5" style="width:50px" /></td>


  		




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  <td class="captcha_expl"><?php echo $MOD_CAPTCHA['VERIFICATION_INFO_TEXT']; ?></td>


  		




  
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  <td class="captcha_expl">Fill in the result</td>


  		




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</tr></table>


  		




  
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2b.)


  		




  
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If you want to use your own layout, use additional parameters to call_captcha():


  		




  
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call_captcha('all') will output the whole table as above.


  		




  
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call_captcha('image', $style); will output the <img>-tag for the image only (or the text for an text-style captcha):


  		




  
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Examples:


  		




  
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  call_captcha('image', 'style="...; title="captcha"');


  		




  
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    <img style="...; title="captcha" src="http://www.example.org/include/captcha/captchas/captcha.php?t=46784246" />


  		




  
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    or


  		




  
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    <span style="...; title="captcha">4 add 6</span>


  		




  
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	call_captcha('image');


  		




  
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    <img src="http://www.example.org/include/captcha/captchas/captcha.php?t=46784246" />


  		




  
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    or


  		




  
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    4 add 6


  		




  
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call_captcha('input', $style); will output the input-field:


  		




  
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  call_captcha('input', 'style"...;"');


  		




  
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    <input type="text" name="captcha" style="...;" />


  		




  
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  call_captcha('input');


  		




  
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    <input type="text" name="captcha" style="width:50px;" maxlength="10" />


  		




  
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call_captcha('text', $style); will output a short "what to do"-text


  		




  
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  call_captcha('text', 'style="...;"');


  		




  
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	  <span style="...;">Fill in the result</span>


  		




  
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  call_captcha('text');


  		




  
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	  Fill in the result


  		




  
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The CAPTCHA-code is allways stored in $_SESSION['captcha'] for verification with user-input.


  		




  
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The user-input is in $_POST['captcha'] (or maybe $_GET['captcha']).


  		












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