functions/page_header.php

   1 <?php
   2
   3 /**
   4  * page_header.php
   5  *
   6  * Prints the page header (duh)
   7  *
   8  * @copyright &copy; 1999-2007 The SquirrelMail Project Team
   9  * @license http://opensource.org/licenses/gpl-license.php GNU Public License
  10  * @version $Id$
  11  * @package squirrelmail
  12  */
  13
  14 /** Include required files from SM */
  15 include_once(SM_PATH . 'functions/imap_mailbox.php');
  16
  17 /**
  18  * Output a SquirrelMail page header, from <!doctype> to </head>
  19  * Always set up the language before calling these functions.
  20  *
  21  * Since 1.5.1 function sends http headers. Function should be called
  22  * before any output is started.
  23  * @param string title the page title, default SquirrelMail.
  24  * @param string xtra extra HTML to insert into the header
  25  * @param bool do_hook whether to execute hooks, default true
  26  * @param bool frames generate html frameset doctype (since 1.5.1)
  27  * @return void
  28  */
  29 function displayHtmlHeader( $title = 'SquirrelMail', $xtra = '', $do_hook = TRUE, $frames = FALSE ) {
  30     global $squirrelmail_language, $sTemplateID, $oErrorHandler, $oTemplate;
  31
  32     if ( !sqgetGlobalVar('base_uri', $base_uri, SQ_SESSION) ) {
  33         global $base_uri;
  34     }
  35     global $custom_css, $pageheader_sent, $theme, $theme_default, $text_direction,
  36         $default_fontset, $chosen_fontset, $default_fontsize, $chosen_fontsize,
  37         $chosen_theme, $chosen_theme_path, $user_themes, $user_theme_default;
  38
  39     /* add no cache headers here */
  40 //FIXME: should change all header() calls in SM core to use $oTemplate->header()!!
  41     $oTemplate->header('Pragma: no-cache'); // http 1.0 (rfc1945)
  42     $oTemplate->header('Cache-Control: private, no-cache, no-store'); // http 1.1 (rfc2616)
  43
  44     // don't show version as a security measure
  45     //$oTemplate->header('X-Powered-By: SquirrelMail/' . SM_VERSION, FALSE);
  46     $oTemplate->header('X-Powered-By: SquirrelMail', FALSE);
  47
  48     $oTemplate->assign('frames', $frames);
  49     $oTemplate->assign('lang', $squirrelmail_language);
  50
  51     $header_tags = '';
  52
  53     $header_tags .= "<meta name=\"robots\" content=\"noindex,nofollow\" />\n";
  54
  55     $used_fontset = (!empty($chosen_fontset) ? $chosen_fontset : $default_fontset);
  56     $used_fontsize = (!empty($chosen_fontsize) ? $chosen_fontsize : $default_fontsize);
  57     $used_theme = !isset($chosen_theme) && $user_theme_default != 'none' && is_dir($chosen_theme) && is_readable($chosen_theme)?  $user_themes[$user_theme_default]['PATH'].'/default.css' : $chosen_theme_path;
  58
  59     /**
  60      * Stylesheets are loaded in the following order:
  61      *    1) All stylesheets provided by the template.  Normally, these are
  62      *       stylsheets in templates/<template>/css/.  This is accomplished by calling
  63      *       $oTemplate->fetch_standard_stylesheet_links().
  64      *    2) An optional user-defined stylesheet.  This is set in the Display
  65      *       Preferences.
  66      *    3) src/style.php which sets some basic font prefs.
  67      *    4) If we are dealing with an RTL language, we load rtl.css from the
  68      *       template set.
  69      */
  70
  71     // 1. Stylesheets from the template.
  72     $header_tags .= $oTemplate->fetch_standard_stylesheet_links();
  73
  74     $aUserStyles = array();
  75
  76     // 2. Option user-defined stylesheet from preferences.
  77     if (!empty($used_theme) && $used_theme != 'none') {
  78         /**
  79          * All styles (except "none" - ugh) just point to a directory,
  80          * so we need to include all .css files in that directory.
  81          */
  82 //FIXME: rid ourselves of "none" strings!  I didn't do it here because I think the problem is that the theme itself should never be "none" (? well, what else would it be?  if "none" theme is actually OK, then is there a constant to use below in stead of a hard-coded string?)
  83         $styles = $used_theme == 'none' ? array()
  84                 : list_files($used_theme, '.css');
  85         foreach ($styles as $sheet) {
  86             $aUserStyles[] = $used_theme .'/'.$sheet;
  87         }
  88     }
  89
  90     // 3. src/style.php
  91     $aUserStyles[] = $base_uri .'src/style.php?'
  92                    . (!empty($used_fontset) ? '&amp;fontset='.$used_fontset : '')
  93                    . (!empty($used_fontsize) ? '&amp;fontsize='.$used_fontsize : '');
  94
  95     // 3.1.  Load the stylesheets we have already
  96     $header_tags .= $oTemplate->fetch_external_stylesheet_links($aUserStyles);
  97
  98     // 4. Optional rtl.css stylesheet
  99     if ($text_direction == 'rtl') {
 100         $header_tags .= $oTemplate->fetch_right_to_left_stylesheet_link();
 101     }
 102
 103     // 5. Printer friendly stylesheet
 104     $header_tags .= create_css_link($base_uri . 'css/print.css', 'printerfriendly', false, 'print');
 105
 106     if ($squirrelmail_language == 'ja_JP') {
 107         /*
 108          * force correct detection of charset, when browser does not follow
 109          * http content-type and tries to detect charset from page content.
 110          * Shooting of browser's creator can't be implemented in php.
 111          * We might get rid of it, if we follow http://www.w3.org/TR/japanese-xml/
 112          * recommendations and switch to unicode.
 113          */
 114         $header_tags .= "<!-- \xfd\xfe -->\n";
 115         $header_tags .= '<meta http-equiv="Content-type" content="' . $oTemplate->get_content_type() . '; charset=euc-jp" />' . "\n";
 116     }
 117     if ($do_hook) {
 118         // NOTE! plugins here MUST assign output to template
 119         //       and NOT echo anything directly!!  A common
 120         //       approach is if a plugin decides it needs to
 121         //       put something at page-top after the standard
 122         //       SM page header, to dynamically add itself to
 123         //       the page_header_bottom and/or compose_header_bottom
 124         //       hooks for the current page request.  See
 125         //       the Sent Confirmation v1.7 or Restrict Senders v1.2
 126         //       plugins for examples of this approach.
 127         ob_start();
 128         $temp = array(&$header_tags);
 129         do_hook('generic_header', $temp);
 130         $output = ob_get_contents();
 131         ob_end_clean();
 132         // plugin authors can debug their errors with one of the following:
 133         //sm_print_r($output);
 134         //echo $output;
 135         if (!empty($output)) trigger_error('A plugin on the "generic_header" hook has attempted to output directly to the browser', E_USER_ERROR);
 136     }
 137
 138     $header_tags .= $xtra;
 139     $oTemplate->assign('page_title', $title);
 140
 141     /* work around IE6's scrollbar bug */
 142     $header_tags .= <<<EOS
 143 <!--[if IE 6]>
 144 <style type="text/css">
 145 /* avoid stupid IE6 bug with frames and scrollbars */
 146 body {
 147     width: expression(document.documentElement.clientWidth - 30);
 148 }
 149 </style>
 150 <![endif]-->
 151
 152 EOS;
 153
 154     $oTemplate->assign('header_tags', $header_tags);
 155     $oTemplate->display('protocol_header.tpl');
 156
 157     /* this is used to check elsewhere whether we should call this function */
 158     $pageheader_sent = TRUE;
 159     if (isset($oErrorHandler)) {
 160         $oErrorHandler->HeaderSent();
 161     }
 162
 163 }
 164
 165 /**
 166  * Given a path to a SquirrelMail file, return a HTML link to it
 167  *
 168  * @param string path the SquirrelMail file to link to
 169  *               (should start with something like "src/..." or
 170  *               "functions/..." or "plugins/..." etc.)
 171  * @param string text the link text
 172  * @param string target the target frame for this link
 173  */
 174 function makeInternalLink($path, $text, $target='') {
 175     global $base_uri, $oTemplate;
 176 //    sqgetGlobalVar('base_uri', $base_uri, SQ_SESSION);
 177
 178     // This is an inefficient hook and is only used by
 179     // one plugin that still needs to patch this code,
 180     // plus if we are templat-izing SM, visual hooks
 181     // are not needed.  However, I am leaving the code
 182     // here just in case we find a good (non-visual?)
 183     // use for the internal_link hook.
 184     //
 185     //do_hook('internal_link', $text);
 186
 187     return create_hyperlink($base_uri . $path, $text, $target);
 188 }
 189
 190 /**
 191  * Outputs a complete SquirrelMail page header, starting with <!doctype> and
 192  * including the default menu bar. Uses displayHtmlHeader and takes
 193  * JavaScript and locale settings into account.
 194  *
 195  * @param array color the array of theme colors
 196  * @param string mailbox the current mailbox name to display
 197  * @param string sHeaderJs javascipt code to be inserted in a script block in the header
 198  * @param string sOnload JavaScript code to be added inside the body's onload handler
 199  *                       as of 1.5.2, this replaces $sBodyTagJs argument
 200  * @return void
 201  */
 202 function displayPageHeader($color, $mailbox='', $sHeaderJs='', $sOnload = '') {
 203
 204     global $reply_focus, $hide_sm_attributions, $frame_top,
 205         $provider_name, $provider_uri, $startMessage,
 206         $action, $oTemplate, $org_title, $base_uri,
 207         $data_dir, $username;
 208
 209     if (empty($sOnload)) {
 210         if (strpos($action, 'reply') !== FALSE && $reply_focus) {
 211             if ($reply_focus == 'select')
 212                 $sOnload = 'checkForm(\'select\');';
 213             else if ($reply_focus == 'focus')
 214                 $sOnload = 'checkForm(\'focus\');';
 215             else if ($reply_focus != 'none')
 216                 $sOnload = 'checkForm();';
 217         }
 218         else
 219             $sOnload = 'checkForm();';
 220     }
 221
 222     $startMessage = (int)$startMessage;
 223
 224     sqgetGlobalVar('delimiter', $delimiter, SQ_SESSION );
 225
 226     if (!isset($frame_top)) {
 227         $frame_top = '_top';
 228     }
 229
 230 //FIXME: does checkForJavascript() make the 2nd part of the if() below unneccessary?? (that is, I think checkForJavascript() might already look for new_js_autodetect_results...(?))
 231     if( checkForJavascript() || strpos($sHeaderJs, 'new_js_autodetect_results.value') ) {
 232         $js_includes = $oTemplate->get_javascript_includes(TRUE);
 233         $sJsBlock = '';
 234         foreach ($js_includes as $js_file) {
 235             $sJsBlock .= '<script src="'.$js_file.'" type="text/javascript"></script>' ."\n";
 236         }
 237         if ($sHeaderJs) {
 238             $sJsBlock .= "\n<script type=\"text/javascript\">" .
 239                         "\n<!--\n" .
 240                         $sHeaderJs . "\n\n// -->\n</script>\n";
 241         }
 242         displayHtmlHeader ($org_title, $sJsBlock);
 243     } else {
 244         /* do not use JavaScript */
 245         displayHtmlHeader ($org_title);
 246         $sOnload = '';
 247     }
 248     if ($mailbox) {
 249         /*
 250         * this explains the imap_mailbox.php dependency. We should instead store
 251         * the selected mailbox in the session and fallback to the session var.
 252         */
 253         $shortBoxName = htmlspecialchars(imap_utf7_decode_local(
 254                     readShortMailboxName($mailbox, $delimiter)));
 255         if (getPref($data_dir, $username, 'translate_special_folders')) {
 256             $shortBoxName = _($shortBoxName);
 257         }
 258         $urlMailbox = urlencode($mailbox);
 259     } else {
 260         $shortBoxName = '';
 261         $urlMailbox = '';
 262     }
 263
 264     $provider_link = '';
 265     if (!empty($provider_uri) && !empty($provider_name) && $provider_name != 'SquirrelMail') {
 266         $provider_link = create_hyperlink($provider_uri, $provider_name, '_blank');
 267     }
 268
 269     $oTemplate->assign('onload', $sOnload);
 270     $oTemplate->assign('shortBoxName', $shortBoxName);
 271     $oTemplate->assign('provider_link', $provider_link);
 272     $oTemplate->assign('frame_top', $frame_top);
 273     $oTemplate->assign('urlMailbox', $urlMailbox);
 274     $oTemplate->assign('startMessage', $startMessage);
 275     $oTemplate->assign('hide_sm_attributions', $hide_sm_attributions);
 276     $oTemplate->display('page_header.tpl');
 277
 278     global $null;
 279     do_hook('page_header_bottom', $null);
 280 }
 281
 282 /**
 283  * Blatantly copied/truncated/modified from displayPageHeader.
 284  * Outputs a page header specifically for the compose_in_new popup window
 285  *
 286  * @param array color the array of theme colors
 287  * @param string mailbox the current mailbox name to display
 288  * @param string sHeaderJs javascipt code to be inserted in a script block in the header
 289  * @param string sOnload JavaScript code to be added inside the body's onload handler
 290  *                       as of 1.5.2, this replaces $sBodyTagJs argument
 291  * @return void
 292  */
 293 function compose_Header($color, $mailbox, $sHeaderJs='', $sOnload = '') {
 294
 295     global $reply_focus, $action, $oTemplate;
 296
 297     if (empty($sOnload)) {
 298         if (strpos($action, 'reply') !== FALSE && $reply_focus) {
 299             if ($reply_focus == 'select')
 300                 $sOnload = 'checkForm(\'select\');';
 301             else if ($reply_focus == 'focus')
 302                 $sOnload = 'checkForm(\'focus\');';
 303             else if ($reply_focus != 'none')
 304                 $sOnload = 'checkForm();';
 305         }
 306         else
 307             $sOnload = 'checkForm();';
 308     }
 309
 310
 311     /*
 312      * Locate the first displayable form element (only when JavaScript on)
 313      */
 314     if(checkForJavascript()) {
 315         if ($sHeaderJs) {
 316             $sJsBlock = "\n<script type=\"text/javascript\">" .
 317                         "\n<!--\n" .
 318                         $sHeaderJs . "\n\n// -->\n</script>\n";
 319         } else {
 320         $sJsBlock = '';
 321         }
 322         $sJsBlock .= "\n";
 323
 324         $js_includes = $oTemplate->get_javascript_includes(TRUE);
 325         foreach ($js_includes as $js_file) {
 326             $sJsBlock .= '<script src="'.$js_file.'" type="text/javascript"></script>' ."\n";
 327         }
 328
 329         displayHtmlHeader (_("Compose"), $sJsBlock);
 330     } else {
 331         /* javascript off */
 332         displayHtmlHeader(_("Compose"));
 333         $sOnload = '';
 334     }
 335
 336 // FIXME: change the colorization attributes below to a CSS class!
 337     $class = '';
 338     $aAttribs = array('text' => $color[8], 'bgcolor' => $color[4],
 339                       'link' => $color[7], 'vlink' => $color[7],
 340                       'alink' => $color[7]);
 341
 342     // this is template-safe (see create_body() function)
 343     echo create_body($sOnload, $class, $aAttribs);
 344
 345     global $null;
 346     do_hook('compose_header_bottom', $null);
 347 }