Roxen.git/ server/ modules/ graphics/ graphic_text.pike

Branch: Tag:

2001-03-21

2001-03-21 14:05:52 by Johan Sundström <oyasumi@gmail.com>

[docs] Created proper example for <gtext-id/>.

Removed invalid href attributes to <gtext-id/> and <gtext-url/>.
(For heavens sake, the tags generate *URLs*, how could they possibly
make links somewhere?!)

Rev: server/modules/graphics/graphic_text.pike:1.264

1:   // This is a roxen module. Copyright © 1996 - 2000, Roxen IS.   //    - constant cvs_version="$Id: graphic_text.pike,v 1.263 2001/03/14 11:36:17 kuntri Exp $"; + constant cvs_version="$Id: graphic_text.pike,v 1.264 2001/03/21 14:05:52 jhs Exp $";      #include <module.h>   inherit "module";
505:   </attr>"+gtextargs,      "gtext-id":#"<desc tag='tag'><p><short> -  Returns an internal URL to an image with the specified attributes -  applied.</short> To use this tag a string with the wanted text needs -  to be put after the URL. Warning: This tag is a serious security -  problem since it is possible to supply very long strings to it, -  turning it into a DOS hole. Hence, this tag should only be used where -  its use can be controlled, e.g. Intranets.</p> +  Returns an internal URL to an image with the specified gtext attributes +  applied.</short> Rendering a text image with the given arguments is +  accomplished by concatenating the text of your choice to the end of the +  URL returned by the tag, as in \"<tag>gtext-id/</tag>Hello%20World!\".</p>    - <ex type='box'> - <define variable='var.image' preparse='yes'><gtext-id/></define> - <a href='&var.bild;'>Click me!</a> - </ex> +  <p>Be aware that this tag could be abused for denial of service +  attacks by malicious users swarming your server with requests for +  images of great length that the server would happily try to render +  for them. Hence this tag should only be used in environments where +  you trust all your users, e.g. Intranets.</p>    -  <p>This link would lead to an empty page. However, if some text would -  be put after the URL the page would instead have some graphical text -  in its upper left corner .</p> +  <p>In most cases the tag <tag>gtext-url</tag> solves this problem, +  but if you would like to generate new text images live without +  reloading some RXML page, you need this tag. An example application:</p>    - <ex type='vert'> - <define variable='var.image' preparse='yes'><gtext-id/></define> - <img src='<ent>var.image</ent>\"My text\"' /> - </ex> - </desc> + <ex type='live'> + <define variable='var.id' preparse='' trimwhites=''> + <gtext-id font='FranklinGothicDemi' fgcolor='blue'/> + </define>    - <attr name='href' value='URL'><p> -  Link the image to the specified URL. The link color of the document -  will be used as the default foreground rather than the foreground -  color.</p> - </attr> + <img src='&var.id;Please type some text here:' +  alt='' name='banner' width='468' height='60'/>    -  + <script language='javascript'> + var image = document.images.banner; + function alter_image(label) + { +  image.src = '&var.id:js;' + escape(label.value); +  label.focus(); +  return false; + } + </script> +  + <form onsubmit='return alter_image(this.label);'> + <input type='text' size='40' name='label' /> + </form></ex> + </desc> +    <attr name='short'><p>    Returns a relative path to the image, i.e. a shorter one.   </p>
543:    applied.</short></p>   </desc>    - <attr name='href' value='URL'><p> -  Link the image to the specified URL. The link color of the document -  will be used as the default foreground rather than the foreground -  color.</p> - </attr> -  +    <attr name='short'><p>    Returns a relative path to the image, i.e. a shorter one.   </p>