Allow template sets to define what the content-type of their output is.

class/template/Template.class.php

@@ -69,6 +69,11 @@ class Template
       */
     var $template_engine = '';
 
+    /**
+      * The content type for this template set
+      */
+    var $content_type = '';
+
     /**
       * The fall-back template ID
       *
@@ -191,6 +196,13 @@ class Template
             = Template::calculate_template_file_directory($this->fallback_template_set_id);
 
 
+        // determine content type, defaulting to text/html
+        //
+        $this->content_type = Template::get_template_config($this->template_set_id,
+                                                            'content_type',
+                                                            'text/html');
+
+
         // determine template engine
         // FIXME: assuming PHP template engine may not necessarily be a good thing
         //
@@ -491,6 +503,18 @@ class Template
 
     }
 
+    /**
+      * Return the content-type for this template set.
+      *
+      * @return string The content-type.
+      *
+      */
+    function get_content_type() {
+
+        return $this->content_type;
+
+    }
+
     /**
       * Get template set config setting
       *

functions/page_header.php

@@ -108,7 +108,7 @@ function displayHtmlHeader( $title = 'SquirrelMail', $xtra = '', $do_hook = TRUE
          * recommendations and switch to unicode.
          */
         $header_tags .= "<!-- \xfd\xfe -->\n";
-        $header_tags .= '<meta http-equiv="Content-type" content="text/html; charset=euc-jp" />' . "\n";
+        $header_tags .= '<meta http-equiv="Content-type" content="' . $oTemplate->get_content_type() . '; charset=euc-jp" />' . "\n";
     }
     if ($do_hook) {
         // NOTE! plugins here MUST assign output to template 

include/init.php

@@ -369,7 +369,7 @@ require(SM_PATH . 'functions/prefs.php');
  * the current user is NOT that user, turn them
  * back on
  */
-sqgetGlobalVar('username',$username,SQ_SESSION);
+sqgetGlobalVar('username', $username, SQ_SESSION);
 if ($disable_plugins && !empty($disable_plugins_user)
  && $username != $disable_plugins_user) {
     $disable_plugins = false;
@@ -451,6 +451,7 @@ if (! sqgetGlobalVar('squirrelmail_language',$squirrelmail_language,SQ_COOKIE))
  * Do something special for some pages. This is based on the PAGE_NAME constant
  * set at the top of every page.
  */
+$set_up_langage_after_template_setup = FALSE;
 switch (PAGE_NAME) {
     case 'style':
 
@@ -623,18 +624,7 @@ switch (PAGE_NAME) {
          }
 // /dont understand
 
-        /**
-         * Set up the language.
-         */
-        $err=set_up_language(getPref($data_dir, $username, 'language'));
-
-        // Japanese translation used without mbstring support
-        if ($err==2) {
-            $sError = "<p>Your administrator needs to have PHP installed with the multibyte string extension enabled (using configure option --enable-mbstring).</p>\n"
-                    . "<p>This system has assumed that you accidently switched to Japanese and has reverted your language preference to English.</p>\n"
-                    . "<p>Please refresh this page in order to continue using your webmail.</p>\n";
-            error_box($sError);
-        }
+        $set_up_langage_after_template_setup = TRUE;
 
         $timeZone = getPref($data_dir, $username, 'timezone');
 
@@ -718,11 +708,34 @@ foreach ($always_include as $var) {
 $nbsp = $oTemplate->fetch('non_breaking_space.tpl');
 $br = $oTemplate->fetch('line_break.tpl');
 
+
+/**
+ * Set up the language.
+ *
+ * This code block corresponds to the *default* block of the switch
+ * statement above, but the language cannot be set up until after the
+ * template is instantiated, so we set $set_up_langage_after_template_setup
+ * above and do the linguistic stuff now.
+ */
+if ($set_up_langage_after_template_setup) {
+    $err=set_up_language(getPref($data_dir, $username, 'language'));
+
+    // Japanese translation used without mbstring support
+    if ($err==2) {
+        $sError = "<p>Your administrator needs to have PHP installed with the multibyte string extension enabled (using configure option --enable-mbstring).</p>\n"
+                . "<p>This system has assumed that you accidently switched to Japanese and has reverted your language preference to English.</p>\n"
+                . "<p>Please refresh this page in order to continue using your webmail.</p>\n";
+        error_box($sError);
+    }
+}
+
+
 /**
  * Initialize our custom error handler object
  */
 $oErrorHandler = new ErrorHandler($oTemplate,'error_message.tpl');
 
+
 /**
  * Activate custom error handling
  */

include/languages.php

@@ -374,15 +374,24 @@ function fixcharset($charset) {
  *  1 = mbstring support is not present,
  *  2 = mbstring support is not present, user's translation reverted to en_US.
  *
- * @param string $sm_language translation used by user's interface
- * @param bool $do_search use browser's preferred language detection functions. Defaults to false.
- * @param bool $default set $sm_language to $squirrelmail_default_language if language detection fails or language is not set. Defaults to false.
+ * @param string $sm_language  Translation used by user's interface
+ * @param bool   $do_search    Use browser's preferred language detection functions.
+ *                             Defaults to false.
+ * @param bool   $default      Set $sm_language to $squirrelmail_default_language if
+ *                             language detection fails or language is not set.
+ *                             Defaults to false.
+ * @param string $content_type The content type being served currently (OPTIONAL;
+ *                             if not specified, defaults to whatever the template
+ *                             set that is in use has defined).
+ *
  * @return int function execution error codes.
+ *
  */
-function set_up_language($sm_language, $do_search = false, $default = false) {
+function set_up_language($sm_language, $do_search=false,
+                         $default=false, $content_type='') {
 
     static $SetupAlready = 0;
-    global $use_gettext, $languages,
+    global $use_gettext, $languages, $oTemplate,
            $squirrelmail_language, $squirrelmail_default_language, $default_charset,
            $sm_notAlias, $username, $data_dir;
 
@@ -393,6 +402,10 @@ function set_up_language($sm_language, $do_search = false, $default = false) {
     $SetupAlready = TRUE;
     sqgetGlobalVar('HTTP_ACCEPT_LANGUAGE',  $accept_lang, SQ_SERVER);
 
+    // grab content type if needed
+    //
+    if (empty($content_type)) $content_type = $oTemplate->get_content_type();
+
     /**
      * If function is asked to detect preferred language
      *  OR squirrelmail default language is set to empty string
@@ -517,7 +530,7 @@ function set_up_language($sm_language, $do_search = false, $default = false) {
 
         $squirrelmail_language = $sm_notAlias;
         if ($squirrelmail_language == 'ja_JP') {
-            header ('Content-Type: text/html; charset=EUC-JP');
+            $oTemplate->header ('Content-Type: ' . $content_type . '; charset=EUC-JP');
             if (!function_exists('mb_internal_encoding')) {
                 // Error messages can't be displayed here
                 $error = 1;
@@ -535,9 +548,9 @@ function set_up_language($sm_language, $do_search = false, $default = false) {
             mb_internal_encoding('EUC-JP');
             mb_http_output('pass');
         } elseif ($squirrelmail_language == 'en_US') {
-            header( 'Content-Type: text/html; charset=' . $default_charset );
+            $oTemplate->header( 'Content-Type: ' . $content_type . '; charset=' . $default_charset );
         } else {
-            header( 'Content-Type: text/html; charset=' . $languages[$sm_notAlias]['CHARSET'] );
+            $oTemplate->header( 'Content-Type: ' . $content_type . '; charset=' . $languages[$sm_notAlias]['CHARSET'] );
         }
         /**
          * mbstring.func_overload fix (#929644).

templates/default/config.php

@@ -17,6 +17,12 @@
 $template_engine = SQ_PHP_TEMPLATE;
 
 
+/**
+ * Indicates what the content type is for this template set.
+ */
+$content_type = 'text/html';
+
+
 /**
   * If non-empty, indicates which template set this set is derived from.
   *

templates/default_advanced/config.php

@@ -17,6 +17,12 @@
 $template_engine = SQ_PHP_TEMPLATE;
 
 
+/**
+ * Indicates what the content type is for this template set.
+ */
+$content_type = 'text/html';
+
+
 /**
   * If non-empty, indicates which template set this set is derived from.  
   *