From: x2003bruneau <x2003bruneau@9869982d-c50d-0410-be91-f2a2ec7c7c7b>
Date: Mon, 27 Feb 2006 19:00:03 +0000 (+0000)
Subject: Gestion du multipart suite :
X-Git-Url: http://git.polytechnique.org/?a=commitdiff_plain;h=1f75b1350fd60457b8308230e910d6841766de1d;p=banana.git

Gestion du multipart suite :
* gestion des messages en html
* gestion des messages possédant plusieurs formats ==> affichage du premier par défaut (donc text/plain si le posteur est RFC-compliant), mais laisse le choix à l'utilisateur entre les différents formats disponibles.

!!! Toujours pas de distinction entre les différents types de multipart !!!


git-svn-id: svn+ssh://murphy/home/svn/banana/trunk@4 9869982d-c50d-0410-be91-f2a2ec7c7c7b
---

diff --git a/banana/banana.inc.php.in b/banana/banana.inc.php.in
index 6d756bf..f777787 100644
--- a/banana/banana.inc.php.in
+++ b/banana/banana.inc.php.in
@@ -56,6 +56,7 @@ class Banana
 
         $group  = empty($_GET['group']) ? null : strtolower($_GET['group']);
         $artid  = empty($_GET['artid']) ? null : strtolower($_GET['artid']);
+        $partid = empty($_GET['part']) ? 0 : $_GET['part'];
         $banana->state = Array ('group' => $group, 'artid' => $artid);
 
         if (is_null($group)) {
@@ -88,7 +89,7 @@ class Banana
             if (isset($_GET['action'])) {
                 switch ($_GET['action']) {
                     case 'cancel':
-                        $res .= $banana->action_showArticle($group, $artid);
+                        $res .= $banana->action_showArticle($group, $artid, $partid);
                         if ($banana->post->checkcancel()) {
                             $form = '<p class="error">'._b_('Voulez-vous vraiment annuler ce message ?').'</p>'
                                   . "<form action=\"?group=$group&amp;artid=$artid\" method='post'><p>"
@@ -112,7 +113,7 @@ class Banana
                 return $banana->action_getAttachment($group, $artid, $_GET['pj'], $action);
             }
             
-            return $res . $banana->action_showArticle($group, $artid);
+            return $res . $banana->action_showArticle($group, $artid, $partid);
         }
     }
 
@@ -172,7 +173,7 @@ class Banana
         return $res.$cuts;
     }
 
-    function action_showArticle($group, $id)
+    function action_showArticle($group, $id, $part)
     {
         $this->_newSpool($group, $this->profile['display'], $this->profile['lastnews']);
         $this->_newPost($id);
@@ -186,7 +187,7 @@ class Banana
 
         $cuts = displayshortcuts();
         $res  = '<h1>'._b_('Message').'</h1>'.$cuts;
-        $res .= $this->post->to_html();
+        $res .= $this->post->to_html($part);
 
         $this->nntp->quit();
         
diff --git a/banana/misc.inc.php b/banana/misc.inc.php
index 3258ef1..d90ba56 100644
--- a/banana/misc.inc.php
+++ b/banana/misc.inc.php
@@ -20,6 +20,45 @@ function to_entities($str) {
 
 function is_utf8($s) { return iconv('utf-8', 'utf-8', $s) == $s; }
 
+function textFormat_translate($format)
+{
+    switch (strtolower($format)) {
+        case 'plain':       return _b_('Texte brut');
+        case 'richtext':    return _b_('Texte enrichi');
+        case 'html':        return _b_('HTML');
+        default:            return $format;
+    }
+}
+
+/********************************************************************************
+ * HTML STUFF
+ * Taken from php.net
+ */
+
+ /**
+ * @return string
+ * @param string
+ * @desc Strip forbidden tags and delegate tag-source check to removeEvilAttributes()
+ */
+function removeEvilTags($source)
+{
+    $allowedTags = '<h1><b><i><a><ul><li><pre><hr><blockquote><img><br><font><p>';
+    $source = strip_tags($source, $allowedTags);
+    return preg_replace('/<(.*?)>/ie', "'<'.removeEvilAttributes('\\1').'>'", $source);
+}
+
+/**
+ * @return string
+ * @param string
+ * @desc Strip forbidden attributes from a tag
+ */
+function removeEvilAttributes($tagSource)
+{
+    $stripAttrib = 'javascript:|onclick|ondblclick|onmousedown|onmouseup|onmouseover|'.
+                   'onmousemove|onmouseout|onkeypress|onkeydown|onkeyup';
+    return stripslashes(preg_replace("/$stripAttrib/i", '', $tagSource));
+}
+
 /********************************************************************************
  *  HEADER STUFF
  */
@@ -216,12 +255,21 @@ function wrap($text, $_prefix="")
     return $_prefix.join("\n$_prefix", $result).($_prefix ? '' : $sign);
 }
 
-function formatbody($_text) {
-    $res  = "\n\n" . to_entities(wrap($_text, ""))."\n\n";
+function formatbody($_text, $format='plain')
+{
+    if ($format == 'html') {
+        $res = '<br/>'.removeEvilTags(html_entity_decode(to_entities($_text))).'<br/>';
+    } else {
+        $res  = "\n\n" . to_entities(wrap($_text, ""))."\n\n";
+    }
     $res  = preg_replace("/(&lt;|&gt;|&quot;)/", " \\1 ", $res);
     $res  = preg_replace('/(["\[])?((https?|ftp|news):\/\/[a-z@0-9.~%$£µ&i#\-+=_\/\?]*)(["\]])?/i', "\\1<a href=\"\\2\">\\2</a>\\4", $res);
     $res  = preg_replace("/ (&lt;|&gt;|&quot;) /", "\\1", $res);
-   
+
+    if ($format == 'html') {
+        return $res;
+    }
+
     $parts = preg_split("/\n-- ?\n/", $res);
 
     if (count($parts) > 1) {
diff --git a/banana/post.inc.php b/banana/post.inc.php
index 364c122..c43fbc8 100644
--- a/banana/post.inc.php
+++ b/banana/post.inc.php
@@ -17,6 +17,8 @@ class BananaPost
     var $headers;
     /** body */
     var $body;
+    /** formating */
+    var $messages;
     /** attachment */
     var $pj;
     /** poster name */
@@ -28,8 +30,9 @@ class BananaPost
     function BananaPost($_id)
     {
         global $banana;
-        $this->id = $_id;
-        $this->pj = array();
+        $this->id       = $_id;
+        $this->pj       = array();
+        $this->messages = array();
         $this->_header();
 
         if ($body = $banana->nntp->body($_id)) {
@@ -64,8 +67,6 @@ class BananaPost
      */
     function split_multipart($type, $boundary)
     {
-        global $banana;
-        
         $parts = preg_split("/\n--$boundary(--|\n)/", $this->body);
         foreach ($parts as $part) {
             $part = $this->get_part($part);
@@ -73,21 +74,20 @@ class BananaPost
             $local_body = $part['body'];
             if (isset($local_header['content-disposition']) && preg_match("/attachment/", $local_header['content-disposition'])) {
                 $this->add_attachment($part);
-            } else if (isset($local_header['content-type']) && preg_match("@text/@", $local_header['content-type'])) {
-                $this->body = $local_body;
-                foreach ($banana->parse_hdr as $hdr) {
-                    if (isset($local_header[$hdr])) {
-                        $this->headers[$hdr] = $local_header[$hdr];
-                    }
-                }
-            }
+            } else if (isset($local_header['content-type']) && preg_match("@text/([^;]+);@", $local_header['content-type'], $format)) {
+    	        array_push($this->messages, $part);
+	        }
+        }
+        if (count($this->messages) > 0) {
+            $this->set_body_to_part(0);
         }
     }
 
     /** extract new headers from the part
      * @param $part STRING part of a multipart message
      */
-    function get_part($part) {
+    function get_part($part)
+    {
         global $banana;
 
         $lines = split("\n", $part);
@@ -103,16 +103,18 @@ class BananaPost
                 break;
             }
         }
-        #        echo join("\n", $lines)."<br/>------------------------------------<br/>";
         return Array('headers' => $local_headers, 'body' => join("\n", $lines)); 
     }
 
-    function add_attachment($part) {
+    /** add an attachment
+     */
+    function add_attachment($part)
+    {
         $local_header = $part['headers'];
         $local_body = $part['body'];
 
         if (!isset($local_header['content-transfer-encoding'])) {
-            return;
+            return false;
         }
 
         if (isset($local_header['content-disposition'])) {
@@ -131,20 +133,22 @@ class BananaPost
             }
         }
         if (!isset($mimetype)) {
-            return;
+            return false;
         }
 
         array_push($this->pj, Array('MIME' => $mimetype,
                                     'filename' => $filename,
                                     'encoding' => strtolower($local_header['content-transfer-encoding']),
                                     'data' => $local_body));
+        return true;
     }
 
     /** decode an attachment
      * @param pjid INT id of the attachment to decode
      * @param action BOOL action to execute : true=view, false=download
      */
-    function get_attachment($pjid, $action = false) {
+    function get_attachment($pjid, $action = false)
+    {
         if ($pjid >= count($this->pj)) {
             return false;
         } else {
@@ -163,6 +167,27 @@ class BananaPost
         }
     }
 
+    /** set body to represent the given part
+     * @param partid INT index of the part in messages
+     */
+    function set_body_to_part($partid)
+    {
+        global $banana;
+        
+        if (count($this->messages) == 0) {
+            return false;
+        }
+
+        $local_header = $this->messages[$partid]['headers'];
+        $this->body   = $this->messages[$partid]['body'];
+        foreach ($banana->parse_hdr as $hdr) {
+            if (isset($local_header[$hdr])) {
+                $this->headers[$hdr] = $local_header[$hdr];
+            }
+        }
+        return true;
+    }
+
     function _header()
     {
         global $banana;
@@ -207,10 +232,17 @@ class BananaPost
         return ($this->headers['from'] == $_SESSION['name']." <".$_SESSION['mail'].">");
     }
 
-    function to_html()
+    /** convert message to html
+     * @param partid INT id of the multipart message that must be displaid
+     */
+    function to_html($partid = 0)
     {
         global $banana;
 
+        if ($partid != 0) {
+            $this->set_body_to_part($partid);
+        }
+
         $res  = '<table class="bicol banana_msg" cellpadding="0" cellspacing="0">';
         $res .= '<tr><th colspan="2">'._b_('En-têtes').'</th></tr>';
 
@@ -223,8 +255,34 @@ class BananaPost
             }
         }
 
-        $res .= '<tr><th colspan="2">'._b_('Corps').'</th></tr>';
-        $res .= '<tr><td colspan="2"><pre>'.formatbody($this->body).'</pre></td></tr>';
+        $res .= '<tr><th colspan="2">'._b_('Corps');
+        if (count($this->messages) > 1) {
+            for ($i = 0 ; $i < count($this->messages) ; $i++) {
+                if ($i == 0) {
+                    $res .= ' : ';
+                } else {
+                    $res .= ' . ';
+                }
+                preg_match("@text/([^;]+);@", $this->messages[$i]['headers']['content-type'], $format);
+                $format = textFormat_translate($format[1]);
+                if ($i != $partid) {
+                    $res .= '<a href="?group='.$banana->state['group'].'&artid='.$this->id.'&part='.$i.'">'.$format.'</a>';
+                } else {
+                    $res .= $format;
+                }
+            }
+        }
+        $res .= '</th></tr>';
+ 
+        preg_match("@text/([^;]+);@", $this->headers['content-type'], $format);
+        $format = $format[1];
+        $res .= '<tr><td colspan="2">';
+        if ($format == 'html') {
+            $res .= formatbody($this->body, $format); 
+        } else {
+            $res .= '<pre>'.formatbody($this->body).'</pre>';
+        }
+        $res .= '</td></tr>';
 
         if (count($this->pj) > 0) {
             $res .= '<tr><th colspan="2">'._b_('Pièces jointes').'</th></tr>';