src/style.php

   1 <?php
   2
   3 /**
   4  * Style sheet script
   5  *
   6  * Script processes GET arguments and generates CSS output from stylesheet.tpl,
   7  * which is defined in each template set.
   8  *
   9  * Used GET arguments:
  10  * <ul>
  11  *   <li>themeid - string, sets theme file from themes/*.php
  12  *   <li>templateid - string, sets template set ID
  13  *   <li>fontset - string, sets selected set of fonts from $fontsets array.
  14  *   <li>fontsize - integer, sets selected font size
  15  *   <li>dir - string, sets text direction variables. Possible values 'rtl' or 'ltr'
  16  * </ul>
  17  * @copyright &copy; 2005-2007 The SquirrelMail Project Team
  18  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  19  * @version $Id$
  20  * @package squirrelmail
  21  */
  22
  23 /** This is the style page */
  24 define('PAGE_NAME', 'style');
  25
  26 /**
  27  * Include the SquirrelMail initialization file.
  28  */
  29 require('../include/init.php');
  30
  31 /* safety check for older config.php */
  32 if (!isset($fontsets) || !is_array($fontsets)) {
  33     $fontsets=array();
  34 }
  35
  36
  37 /**
  38  * The following code should no longer be neccesary, but it will remain for the
  39  * time being, just in case.
  40  *
  41  * TODO: Remove if no longer needed.
  42  **/
  43 /* set default colors in case color theme is not full */
  44 $color = array();
  45 $color[0]   = '#dcdcdc'; // (light gray)     TitleBar
  46 $color[1]   = '#800000'; // (red)
  47 $color[2]   = '#cc0000'; // (light red)      Warning/Error Messages
  48 $color[3]   = '#a0b8c8'; // (green-blue)     Left Bar Background
  49 $color[4]   = '#ffffff'; // (white)          Normal Background
  50 $color[5]   = '#ffffcc'; // (light yellow)   Table Headers
  51 $color[6]   = '#000000'; // (black)          Text on left bar
  52 $color[7]   = '#0000cc'; // (blue)           Links
  53 $color[8]   = '#000000'; // (black)          Normal text
  54 $color[9]   = '#ababab'; // (mid-gray)       Darker version of #0
  55 $color[10]  = '#666666'; // (dark gray)      Darker version of #9
  56 $color[11]  = '#770000'; // (dark red)       Special Folders color
  57 $color[12]  = '#ededed'; // (light gray)     Alternate color for message list
  58 $color[13]  = '#800000'; // (dark red)       Color for quoted text -- > 1 quote
  59 $color[14]  = '#ff0000'; // (red)            Color for quoted text -- >> 2 or more
  60 $color[15]  = '#002266'; // (dark blue)      Unselectable folders
  61 $color[16]  = '#ff9933'; // (orange)         Highlight color
  62
  63 /**
  64  * set color constants in order to use simple names instead of color array
  65  * 0 - SQM_TEXT_DISABLED, SQM_TITLE_BACKGROUND, SQM_BUTTON_BACKGROUND_DISABLED,
  66  *     SQM_ROW_BACKGROUND_1
  67  * 1 -
  68  * 2 - SQM_ERROR_TEXT
  69  * 3 - SQM_BACKGROUND_LEFT
  70  * 4 - SQM_BACKGROUND
  71  * 5 - SQM_ROW_BACKGROUND_HIGHLIGHT, SQM_COLUMN_HEADER_BACKGROUND
  72  * 6 - SQM_TEXT_STANDARD_LEFT
  73  * 7 - SQM_TITLE_TEXT, SQM_BLOCK_TITLE_TEXT
  74  * 8 - SQM_TEXT_STANDARD, SQM_BUTTON_TEXT, SQM_BLOCK_TEXT, SQM_ROW_TEXT_1,
  75  *     SQM_ROW_TEXT_2, SQM_ROW_TEXT_HIGHLIGHT, SQM_ROW_TEXT_SELECTED,
  76  *     SQM_COLUMN_HEADER_TEXT
  77  * 9 - SQM_BUTTON_BACKGROUND
  78  * 10 - SQM_BLOCK_TITLE
  79  * 11 - SQM_TEXT_SPECIAL
  80  * 12 - SQM_BUTTON_BACKGROUND_TEXT, SQM_BLOCK_BACKGROUND, SQM_ROW_BACKGROUND_2
  81  * 13 - SQM_MESSAGE_QUOTE_1
  82  * 14 - SQM_MESSAGE_QUOTE_2
  83  * 15 - SQM_TEXT_HIGHLIGHT
  84  * 16 - SQM_ROW_BACKGROUND_SELECTED
  85  */
  86 define('SQM_BACKGROUND',$color[4]);
  87 define('SQM_BACKGROUND_LEFT',$color[3]);
  88
  89 define('SQM_TEXT_STANDARD',$color[8]);
  90 define('SQM_TEXT_STANDARD_LEFT',$color[6]);
  91 define('SQM_TEXT_HIGHLIGHT',$color[15]);
  92 define('SQM_TEXT_DISABLED',$color[0]);
  93 define('SQM_TEXT_SPECIAL',$color[11]);
  94
  95 define('SQM_LINK',$color[7]);
  96 define('SQM_LINK_LEFT',$color[6]);
  97
  98 define('SQM_TITLE_BACKGROUND',$color[0]);
  99 define('SQM_TITLE_TEXT',$color[7]);
 100
 101 define('SQM_BUTTON_BACKGROUND',$color[9]);
 102 define('SQM_BUTTON_TEXT',$color[8]);
 103 define('SQM_BUTTON_BACKGROUND_DISABLED',$color[0]);
 104 define('SQM_BUTTON_BACKGROUND_TEXT',$color[12]);
 105
 106 define('SQM_BLOCK_BACKGROUND',$color[12]);
 107 define('SQM_BLOCK_TEXT',$color[8]);
 108 define('SQM_BLOCK_TITLE',$color[10]);
 109 define('SQM_BLOCK_TITLE_TEXT',$color[7]);
 110
 111 define('SQM_ROW_BACKGROUND_1',$color[0]);
 112 define('SQM_ROW_BACKGROUND_2',$color[12]);
 113 define('SQM_ROW_TEXT_1',$color[8]);
 114 define('SQM_ROW_TEXT_2',$color[8]);
 115 define('SQM_ROW_BACKGROUND_HIGHLIGHT',$color[5]);
 116 define('SQM_ROW_TEXT_HIGHLIGHT',$color[8]);
 117 define('SQM_ROW_BACKGROUND_SELECTED',$color[16]);
 118 define('SQM_ROW_TEXT_SELECTED',$color[8]);
 119
 120 define('SQM_COLUMN_HEADER_BACKGROUND',$color[5]);
 121 define('SQM_COLUMN_HEADER_TEXT',$color[8]);
 122
 123 define('SQM_MESSAGE_QUOTE_1',$color[13]);
 124 define('SQM_MESSAGE_QUOTE_2',$color[14]);
 125
 126 define('SQM_ERROR_TEXT',$color[2]);
 127
 128 define('SQM_ALIGN_LEFT', $align['left']);
 129 define('SQM_ALIGN_RIGHT', $align['right']);
 130
 131 // END TODO
 132
 133 if (sqgetGlobalVar('fontset',$fontset,SQ_GET) &&
 134     isset($fontsets[$fontset])) {
 135     $fontfamily=$fontsets[$fontset];
 136 } else {
 137     $fontfamily='';
 138 }
 139
 140 if (! sqgetGlobalVar('fontsize',$fontsize,SQ_GET)) {
 141     $fontsize = 0;
 142 } else {
 143     $fontsize = (int) $fontsize;
 144 }
 145
 146 $oTemplate->header('Content-Type: text/css');
 147 /**
 148  * GOTCHA #1: When sending the headers for caching, we must send Expires,
 149  *            Last-Modified, Pragma, and Cache-Control headers.  If we don't PHP
 150  *            will makeup values that will break the cacheing.
 151  *
 152  * GOTCHA #2: If the current template does not contain a template named
 153  *            stylesheet.tpl, this cacheing will break because filemtime() won't
 154  *            work.  This is a problem e.g. with the default_advanced template
 155  *            that inherits CSS properties from the default template but
 156  *            doesn't contain stylesheet.tpl itself.
 157 IDEA: So ask the Template class object to return the mtime or better yet, the full file path (at least from SM_PATH) by using $oTemplate->get_template_file_path(stylesheet.tpl) but this is still a problem if the default template also does not have such a file (in which case, we fall back to SM's css/deafult css file (so in that case, go get that file's mtime!)
 158  *            Possibly naive suggestion - template can define its own default
 159  *            template name
 160  *
 161  * GOTCHA #3: If the user changes user prefs for things like font size then
 162  *            the mtime should be updated to the time of that change, and not
 163  *            that of the stylesheet.tpl file.  IDEA: can this be a value kept
 164  *            in user prefs (always compare to actual file mtime before sending
 165  *            to the browser)
 166  *
 167  * Comment re gotcha #3: If we only define basic font prefs here, we really
 168  * only need to refresh the cache if one of the font prefs changes.
 169  * Possibly some type of "force nocache flag could be set if a font pref is
 170  * changed?
 171  *
 172  * Response: Perhaps, if that can be implemented great, but I think the
 173  * user prefs solution would definitely work: catch the font setting change
 174  * in a custom save() routine from user prefs and away we go.
 175  *
 176  * TODO: Fix this. :)
 177  */
 178
 179 if ( $lastmod = @filemtime(SM_PATH . $oTemplate->get_template_file_directory()
 180                          . 'css/stylesheet.tpl') ) {
 181     $gmlastmod = gmdate('D, d M Y H:i:s', $lastmod) . ' GMT';
 182     $expires = gmdate('D, d M Y H:i:s', strtotime('+1 week')) . ' GMT';
 183     $oTemplate->header('Last-Modified: ' . $gmlastmod);
 184     $oTemplate->header('Expires: '. $expires);
 185     $oTemplate->header('Pragma: ');
 186     $oTemplate->header('Cache-Control: public, must-revalidate');
 187 }
 188 // Steve, why did you remove this?  Is it irrelevant now?  If so, let's
 189 // remove the rest of the references to it here (note that it is being
 190 // used above in the filetime() statement) and elsewhere
 191 // $oTemplate->display('css/stylesheet.tpl');
 192
 193 // don't show version as a security measure
 194 //$oTemplate->header('X-Powered-By: SquirrelMail/' . SM_VERSION, FALSE);
 195 $oTemplate->header('X-Powered-By: SquirrelMail', FALSE);
 196
 197 /**
 198  * Additional styles are now handled by adding stylesheets to
 199  * templates/<template>/css/, so here, we simply define some
 200  * basic styles based on user prefs.
 201  */
 202 ?>
 203 /* older css template */
 204 body, td, th, dd, dt, h1, h2, h3, h4, h5, h6, p, ol, ul, li {
 205 <?php
 206 if($fontfamily) echo '  font-family: '.$fontfamily.";\n";
 207 ?>
 208 }
 209 body, small {
 210 <?php
 211 if($fontsize) echo '  font-size: '.($fontsize-2)."pt;\n";
 212 ?>
 213 }
 214 td, th {
 215 <?php
 216 if($fontsize) echo '  font-size: '.$fontsize."pt;\n";
 217 ?>
 218 }
 219 textarea, pre {
 220 font-family: monospace;
 221 <?php
 222 if($fontsize) echo '  font-size: '.($fontsize-1)."pt;\n";
 223 ?>
 224 }
 225