Use -no-undefined on Linux too

There still left two things opened, search for KILL-BONOBO to find them.
One is in calendar's Makefile.am, one in composer.

1 files changed, 1945 insertions, 0 deletions

diff --git a/em-format/em-format.c b/em-format/em-format.c
new file mode 100644
index 0000000000..267c953320
--- /dev/null
+++ b/em-format/em-format.c
@@ -0,0 +1,1945 @@
+/*
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>  
+ *
+ *
+ * Authors:
+ *		Michael Zucchi <notzed@ximian.com>
+ *      Jeffrey Stedfast <fejj@ximian.com>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+
+#include <glib/gi18n.h>
+#include <gio/gio.h>
+
+#include <libedataserver/e-msgport.h>
+#include <camel/camel-stream.h>
+#include <camel/camel-stream-mem.h>
+#include <camel/camel-multipart.h>
+#include <camel/camel-multipart-encrypted.h>
+#include <camel/camel-multipart-signed.h>
+#include <camel/camel-medium.h>
+#include <camel/camel-mime-message.h>
+#include <camel/camel-gpg-context.h>
+#include <camel/camel-smime-context.h>
+#include <camel/camel-string-utils.h>
+#include <camel/camel-stream-filter.h>
+#include <camel/camel-stream-null.h>
+#include <camel/camel-stream-mem.h>
+#include <camel/camel-mime-filter-charset.h>
+#include <camel/camel-mime-filter-windows.h>
+#include <camel/camel-mime-filter-pgp.h>
+
+#include "em-format.h"
+#include "e-util/e-util.h"
+#include "shell/e-shell.h"
+#include "shell/e-shell-settings.h"
+
+#define d(x)
+
+/* Used to cache various data/info for redraws
+   The validity stuff could be cached at a higher level but this is easier
+   This absolutely relies on the partid being _globally unique_
+   This is still kind of yucky, we should maintian a full tree of all this data,
+   along with/as part of the puri tree */
+struct _EMFormatCache {
+	CamelCipherValidity *valid; /* validity copy */
+	CamelMimePart *secured;	/* encrypted subpart */
+
+	unsigned int state:2;		/* inline state */
+
+	char partid[1];
+};
+
+#define INLINE_UNSET (0)
+#define INLINE_ON (1)
+#define INLINE_OFF (2)
+
+static void emf_builtin_init(EMFormatClass *);
+
+static const EMFormatHandler *emf_find_handler(EMFormat *emf, const char *mime_type);
+static void emf_format_clone(EMFormat *emf, CamelFolder *folder, const char *uid, CamelMimeMessage *msg, EMFormat *emfsource);
+static void emf_format_secure(EMFormat *emf, CamelStream *stream, CamelMimePart *part, CamelCipherValidity *valid);
+static gboolean emf_busy(EMFormat *emf);
+enum {
+	EMF_COMPLETE,
+	EMF_LAST_SIGNAL,
+};
+
+static gpointer parent_class;
+static guint signals[EMF_LAST_SIGNAL];
+
+static void
+emf_free_cache(struct _EMFormatCache *efc)
+{
+	if (efc->valid)
+		camel_cipher_validity_free(efc->valid);
+	if (efc->secured)
+		camel_object_unref(efc->secured);
+	g_free(efc);
+}
+
+static struct _EMFormatCache *
+emf_insert_cache(EMFormat *emf, const char *partid)
+{
+	struct _EMFormatCache *new;
+
+	new = g_malloc0(sizeof(*new)+strlen(partid));
+	strcpy(new->partid, partid);
+	g_hash_table_insert(emf->inline_table, new->partid, new);
+
+	return new;
+}
+
+static void
+emf_finalize (GObject *object)
+{
+	EMFormat *emf = EM_FORMAT (object);
+
+	if (emf->session)
+		camel_object_unref (emf->session);
+
+	g_hash_table_destroy (emf->inline_table);
+
+	em_format_clear_headers(emf);
+	camel_cipher_validity_free(emf->valid);
+	g_free(emf->charset);
+	g_free (emf->default_charset);
+	g_string_free(emf->part_id, TRUE);
+
+	/* FIXME: check pending jobs */
+
+	/* Chain up to parent's finalize() method. */
+	G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+emf_base_init (EMFormatClass *class)
+{
+	class->type_handlers = g_hash_table_new (g_str_hash, g_str_equal);
+	emf_builtin_init (class);
+}
+
+static void
+emf_class_init (EMFormatClass *class)
+{
+	GObjectClass *object_class;
+
+	parent_class = g_type_class_peek_parent (class);
+
+	object_class = G_OBJECT_CLASS (class);
+	object_class->finalize = emf_finalize;
+
+	class->find_handler = emf_find_handler;
+	class->format_clone = emf_format_clone;
+	class->format_secure = emf_format_secure;
+	class->busy = emf_busy;
+
+	signals[EMF_COMPLETE] = g_signal_new (
+		"complete",
+		G_OBJECT_CLASS_TYPE (class),
+		G_SIGNAL_RUN_LAST,
+		G_STRUCT_OFFSET (EMFormatClass, complete),
+		NULL, NULL,
+		g_cclosure_marshal_VOID__VOID,
+		G_TYPE_NONE, 0);
+
+	class->type_handlers = g_hash_table_new (g_str_hash, g_str_equal);
+	emf_builtin_init (class);
+}
+
+static void
+emf_init (EMFormat *emf)
+{
+	EShell *shell;
+	EShellSettings *shell_settings;
+
+	emf->inline_table = g_hash_table_new_full (
+		g_str_hash, g_str_equal,
+		(GDestroyNotify) NULL,
+		(GDestroyNotify) emf_free_cache);
+	emf->composer = FALSE;
+	emf->print = FALSE;
+	e_dlist_init(&emf->header_list);
+	em_format_default_headers(emf);
+	emf->part_id = g_string_new("");
+
+	shell = e_shell_get_default ();
+	shell_settings = e_shell_get_shell_settings (shell);
+
+	emf->session = e_shell_settings_get_pointer (shell_settings, "mail-session");
+	g_return_if_fail (emf->session != NULL);
+
+	camel_object_ref (emf->session);
+}
+
+GType
+em_format_get_type (void)
+{
+	static GType type = 0;
+
+	if (G_UNLIKELY (type == 0)) {
+		static const GTypeInfo type_info = {
+			sizeof (EMFormatClass),
+			(GBaseInitFunc) emf_base_init,
+			(GBaseFinalizeFunc) NULL,
+			(GClassInitFunc) emf_class_init,
+			(GClassFinalizeFunc) NULL,
+			NULL,  /* class_data */
+			sizeof (EMFormat),
+			0,     /* n_preallocs */
+			(GInstanceInitFunc) emf_init,
+			NULL   /* value_table */
+		};
+
+		type = g_type_register_static (
+			G_TYPE_OBJECT, "EMFormat", &type_info, 0);
+	}
+
+	return type;
+}
+
+/**
+ * em_format_class_add_handler:
+ * @emfc: EMFormatClass
+ * @info: Callback information.
+ *
+ * Add a mime type handler to this class.  This is only used by
+ * implementing classes.  The @info.old pointer will automatically be
+ * setup to point to the old hanlder if one was already set.  This can
+ * be used for overrides a fallback.
+ *
+ * When a mime type described by @info is encountered, the callback will
+ * be invoked.  Note that @info may be extended by sub-classes if
+ * they require additional context information.
+ *
+ * Use a mime type of "foo/ *" to insert a fallback handler for type "foo".
+ **/
+void
+em_format_class_add_handler(EMFormatClass *emfc, EMFormatHandler *info)
+{
+	d(printf("adding format handler to '%s' '%s'\n", 	g_type_name_from_class((GTypeClass *)emfc), info->mime_type));
+	info->old = g_hash_table_lookup(emfc->type_handlers, info->mime_type);
+	g_hash_table_insert(emfc->type_handlers, info->mime_type, info);
+}
+
+struct _class_handlers {
+	EMFormatClass *old;
+	EMFormatClass *new;
+};
+static void
+merge_missing (gpointer key, gpointer value, gpointer userdata)
+{
+	struct _class_handlers *classes = (struct _class_handlers *) userdata;
+	EMFormatHandler *info, *oldinfo;
+
+	oldinfo = (EMFormatHandler *) value;
+	info = g_hash_table_lookup (classes->new->type_handlers, key);
+	if (!info) {
+		/* Might be from a plugin */
+		g_hash_table_insert (classes->new->type_handlers, key, value);
+	}
+
+}
+
+void
+em_format_merge_handler(EMFormat *new, EMFormat *old)
+{
+	EMFormatClass *oldc = (EMFormatClass *)G_OBJECT_GET_CLASS(old);
+	EMFormatClass *newc = (EMFormatClass *)G_OBJECT_GET_CLASS(new);
+	struct _class_handlers fclasses;
+
+	fclasses.old = oldc;
+	fclasses.new = newc;
+
+	g_hash_table_foreach (oldc->type_handlers, merge_missing, &fclasses);
+
+}
+
+/**
+ * em_format_class_remove_handler:
+ * @emfc:
+ * @info:
+ *
+ * Remove a handler.  @info must be a value which was previously
+ * added.
+ **/
+void
+em_format_class_remove_handler(EMFormatClass *emfc, EMFormatHandler *info)
+{
+	EMFormatHandler *current;
+
+	/* TODO: thread issues? */
+
+	current = g_hash_table_lookup(emfc->type_handlers, info->mime_type);
+	if (current == info) {
+		current = info->old;
+		if (current)
+			g_hash_table_insert(emfc->type_handlers, current->mime_type, current);
+		else
+			g_hash_table_remove(emfc->type_handlers, info->mime_type);
+	} else {
+		while (current && current->old != info)
+			current = current->old;
+		g_return_if_fail(current != NULL);
+		current->old = info->old;
+	}
+}
+
+const EMFormatHandler *
+em_format_find_handler (EMFormat *emf,
+                        const gchar *mime_type)
+{
+	EMFormatClass *class;
+
+	g_return_val_if_fail (EM_IS_FORMAT (emf), NULL);
+	g_return_val_if_fail (mime_type != NULL, NULL);
+
+	class = EM_FORMAT_GET_CLASS (emf);
+	g_return_val_if_fail (class->find_handler != NULL, NULL);
+	return class->find_handler (emf, mime_type);
+}
+
+/**
+ * em_format_find_handler:
+ * @emf:
+ * @mime_type:
+ *
+ * Find a format handler by @mime_type.
+ *
+ * Return value: NULL if no handler is available.
+ **/
+static const EMFormatHandler *
+emf_find_handler(EMFormat *emf, const char *mime_type)
+{
+	EMFormatClass *emfc = (EMFormatClass *)G_OBJECT_GET_CLASS(emf);
+
+	return g_hash_table_lookup(emfc->type_handlers, mime_type);
+}
+
+/**
+ * em_format_fallback_handler:
+ * @emf:
+ * @mime_type:
+ *
+ * Try to find a format handler based on the major type of the @mime_type.
+ *
+ * The subtype is replaced with "*" and a lookup performed.
+ *
+ * Return value:
+ **/
+const EMFormatHandler *
+em_format_fallback_handler(EMFormat *emf, const char *mime_type)
+{
+	char *mime, *s;
+
+	s = strchr(mime_type, '/');
+	if (s == NULL)
+		mime = (char *)mime_type;
+	else {
+		size_t len = (s-mime_type)+1;
+
+		mime = alloca(len+2);
+		strncpy(mime, mime_type, len);
+		strcpy(mime+len, "*");
+	}
+
+	return em_format_find_handler(emf, mime);
+}
+
+/**
+ * em_format_add_puri:
+ * @emf:
+ * @size:
+ * @cid: Override the autogenerated content id.
+ * @part:
+ * @func:
+ *
+ * Add a pending-uri handler.  When formatting parts that reference
+ * other parts, a pending-uri (PURI) can be used to track the reference.
+ *
+ * @size is used to allocate the structure, so that it can be directly
+ * subclassed by implementors.
+ *
+ * @cid can be used to override the key used to retreive the PURI, if NULL,
+ * then the content-location and the content-id of the @part are stored
+ * as lookup keys for the part.
+ *
+ * FIXME: This may need a free callback.
+ *
+ * Return value: A new PURI, with a referenced copy of @part, and the cid
+ * always set.  The uri will be set if one is available.  Clashes
+ * are resolved by forgetting the old PURI in the global index.
+ **/
+EMFormatPURI *
+em_format_add_puri(EMFormat *emf, size_t size, const char *cid, CamelMimePart *part, EMFormatPURIFunc func)
+{
+	EMFormatPURI *puri;
+	const char *tmp;
+
+	d(printf("adding puri for part: %s\n", emf->part_id->str));
+
+	if (size < sizeof(*puri)) {
+		g_warning (
+			"size (%" G_GSIZE_FORMAT
+			") less than size of puri\n", size);
+		size = sizeof (*puri);
+	}
+
+	puri = g_malloc0(size);
+
+	puri->format = emf;
+	puri->func = func;
+	puri->use_count = 0;
+	puri->cid = g_strdup(cid);
+	puri->part_id = g_strdup(emf->part_id->str);
+
+	if (part) {
+		camel_object_ref(part);
+		puri->part = part;
+	}
+
+	if (part != NULL && cid == NULL) {
+		tmp = camel_mime_part_get_content_id(part);
+		if (tmp)
+			puri->cid = g_strdup_printf("cid:%s", tmp);
+		else
+			puri->cid = g_strdup_printf("em-no-cid:%s", emf->part_id->str);
+
+		d(printf("built cid '%s'\n", puri->cid));
+
+		/* not quite same as old behaviour, it also put in the relative uri and a fallback for no parent uri */
+		tmp = camel_mime_part_get_content_location(part);
+		puri->uri = NULL;
+		if (tmp == NULL) {
+			/* no location, don't set a uri at all, html parts do this themselves */
+		} else {
+			if (strchr(tmp, ':') == NULL && emf->base != NULL) {
+				CamelURL *uri;
+
+				uri = camel_url_new_with_base(emf->base, tmp);
+				puri->uri = camel_url_to_string(uri, 0);
+				camel_url_free(uri);
+			} else {
+				puri->uri = g_strdup(tmp);
+			}
+		}
+	}
+
+	g_return_val_if_fail (puri->cid != NULL, NULL);
+	g_return_val_if_fail (emf->pending_uri_level != NULL, NULL);
+	g_return_val_if_fail (emf->pending_uri_table != NULL, NULL);
+
+	e_dlist_addtail(&emf->pending_uri_level->uri_list, (EDListNode *)puri);
+
+	if (puri->uri)
+		g_hash_table_insert(emf->pending_uri_table, puri->uri, puri);
+	g_hash_table_insert(emf->pending_uri_table, puri->cid, puri);
+
+	return puri;
+}
+
+/**
+ * em_format_push_level:
+ * @emf:
+ *
+ * This is used to build a heirarchy of visible PURI objects based on
+ * the structure of the message.  Used by multipart/alternative formatter.
+ *
+ * FIXME: This could probably also take a uri so it can automaticall update
+ * the base location.
+ **/
+void
+em_format_push_level(EMFormat *emf)
+{
+	struct _EMFormatPURITree *purilist;
+
+	d(printf("em_format_push_level\n"));
+	purilist = g_malloc0(sizeof(*purilist));
+	e_dlist_init(&purilist->children);
+	e_dlist_init(&purilist->uri_list);
+	purilist->parent = emf->pending_uri_level;
+	if (emf->pending_uri_tree == NULL) {
+		emf->pending_uri_tree = purilist;
+	} else {
+		e_dlist_addtail(&emf->pending_uri_level->children, (EDListNode *)purilist);
+	}
+	emf->pending_uri_level = purilist;
+}
+
+/**
+ * em_format_pull_level:
+ * @emf:
+ *
+ * Drop a level of visibility back to the parent.  Note that
+ * no PURI values are actually freed.
+ **/
+void
+em_format_pull_level(EMFormat *emf)
+{
+	d(printf("em_format_pull_level\n"));
+	emf->pending_uri_level = emf->pending_uri_level->parent;
+}
+
+/**
+ * em_format_find_visible_puri:
+ * @emf:
+ * @uri:
+ *
+ * Search for a PURI based on the visibility defined by :push_level()
+ * and :pull_level().
+ *
+ * Return value:
+ **/
+EMFormatPURI *
+em_format_find_visible_puri(EMFormat *emf, const char *uri)
+{
+	EMFormatPURI *pw;
+	struct _EMFormatPURITree *ptree;
+
+	d(printf("checking for visible uri '%s'\n", uri));
+
+	ptree = emf->pending_uri_level;
+	while (ptree) {
+		pw = (EMFormatPURI *)ptree->uri_list.head;
+		while (pw->next) {
+			d(printf(" pw->uri = '%s' pw->cid = '%s\n", pw->uri?pw->uri:"", pw->cid));
+			if ((pw->uri && !strcmp(pw->uri, uri)) || !strcmp(pw->cid, uri))
+				return pw;
+			pw = pw->next;
+		}
+		ptree = ptree->parent;
+	}
+
+	return NULL;
+}
+
+/**
+ * em_format_find_puri:
+ * @emf:
+ * @uri:
+ *
+ * Search for a PURI based on a uri.  Both the content-id
+ * and content-location are checked.
+ *
+ * Return value:
+ **/
+EMFormatPURI *
+
+em_format_find_puri(EMFormat *emf, const char *uri)
+{
+	return g_hash_table_lookup(emf->pending_uri_table, uri);
+}
+
+static void
+emf_clear_puri_node(struct _EMFormatPURITree *node)
+{
+	{
+		EMFormatPURI *pw, *pn;
+
+		/* clear puri's at this level */
+		pw = (EMFormatPURI *)node->uri_list.head;
+		pn = pw->next;
+		while (pn) {
+			d(printf ("freeing pw %p format:%p\n", pw, pw->format));
+			if (pw->free)
+				pw->free(pw);
+			g_free(pw->uri);
+			g_free(pw->cid);
+			g_free(pw->part_id);
+			if (pw->part)
+				camel_object_unref(pw->part);
+			g_free(pw);
+			pw = pn;
+			pn = pn->next;
+		}
+	}
+
+	{
+		struct _EMFormatPURITree *cw, *cn;
+
+		/* clear child nodes */
+		cw = (struct _EMFormatPURITree *)node->children.head;
+		cn = cw->next;
+		while (cn) {
+			emf_clear_puri_node(cw);
+			cw = cn;
+			cn = cn->next;
+		}
+	}
+
+	g_free(node);
+}
+
+/**
+ * em_format_clear_puri_tree:
+ * @emf:
+ *
+ * For use by implementors to clear out the message structure
+ * data.
+ **/
+void
+em_format_clear_puri_tree(EMFormat *emf)
+{
+	d(printf("clearing pending uri's\n"));
+
+	if (emf->pending_uri_table) {
+		g_hash_table_destroy(emf->pending_uri_table);
+		emf_clear_puri_node(emf->pending_uri_tree);
+		emf->pending_uri_level = NULL;
+		emf->pending_uri_tree = NULL;
+	}
+	emf->pending_uri_table = g_hash_table_new(g_str_hash, g_str_equal);
+	em_format_push_level(emf);
+}
+
+/* use mime_type == NULL  to force showing as application/octet-stream */
+void
+em_format_part_as(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const char *mime_type)
+{
+	const EMFormatHandler *handle = NULL;
+	const char *snoop_save = emf->snoop_mime_type, *tmp;
+	CamelURL *base_save = emf->base, *base = NULL;
+	char *basestr = NULL;
+
+	d(printf("format_part_as()\n"));
+
+	emf->snoop_mime_type = NULL;
+
+	/* RFC 2110, we keep track of content-base, and absolute content-location headers
+	   This is actually only required for html, but, *shrug* */
+	tmp = camel_medium_get_header((CamelMedium *)part, "Content-Base");
+	if (tmp == NULL) {
+		tmp = camel_mime_part_get_content_location(part);
+		if (tmp && strchr(tmp, ':') == NULL)
+			tmp = NULL;
+	} else {
+		tmp = basestr = camel_header_location_decode(tmp);
+	}
+	d(printf("content-base is '%s'\n", tmp?tmp:"<unset>"));
+	if (tmp
+	    && (base = camel_url_new(tmp, NULL))) {
+		emf->base = base;
+		d(printf("Setting content base '%s'\n", tmp));
+	}
+	g_free(basestr);
+
+	if (mime_type != NULL) {
+		if (g_ascii_strcasecmp(mime_type, "application/octet-stream") == 0) {
+			emf->snoop_mime_type = mime_type = em_format_snoop_type(part);
+			if (mime_type == NULL)
+				mime_type = "application/octet-stream";
+		}
+
+		handle = em_format_find_handler(emf, mime_type);
+		if (handle == NULL)
+			handle = em_format_fallback_handler(emf, mime_type);
+
+		if (handle != NULL
+		    && !em_format_is_attachment(emf, part)) {
+			d(printf("running handler for type '%s'\n", mime_type));
+			handle->handler(emf, stream, part, handle);
+			goto finish;
+		}
+		d(printf("this type is an attachment? '%s'\n", mime_type));
+	} else {
+		mime_type = "application/octet-stream";
+	}
+
+	((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_attachment(emf, stream, part, mime_type, handle);
+finish:
+	emf->base = base_save;
+	emf->snoop_mime_type = snoop_save;
+
+	if (base)
+		camel_url_free(base);
+}
+
+void
+em_format_part(EMFormat *emf, CamelStream *stream, CamelMimePart *part)
+{
+	char *mime_type;
+	CamelDataWrapper *dw;
+
+	dw = camel_medium_get_content_object((CamelMedium *)part);
+	mime_type = camel_data_wrapper_get_mime_type(dw);
+	if (mime_type) {
+		camel_strdown(mime_type);
+		em_format_part_as(emf, stream, part, mime_type);
+		g_free(mime_type);
+	} else
+		em_format_part_as(emf, stream, part, "text/plain");
+}
+
+static void
+emf_clone_inlines(void *key, void *val, void *data)
+{
+	struct _EMFormatCache *emfc = val, *new;
+
+	new = emf_insert_cache((EMFormat *)data, emfc->partid);
+	new->state = emfc->state;
+	if (emfc->valid)
+		new->valid = camel_cipher_validity_clone(emfc->valid);
+	if (emfc->secured)
+		camel_object_ref((new->secured = emfc->secured));
+}
+
+static void
+emf_format_clone(EMFormat *emf, CamelFolder *folder, const char *uid, CamelMimeMessage *msg, EMFormat *emfsource)
+{
+	em_format_clear_puri_tree(emf);
+
+	if (emf != emfsource) {
+		g_hash_table_remove_all(emf->inline_table);
+		if (emfsource) {
+			struct _EMFormatHeader *h;
+
+			/* We clone the current state here */
+			g_hash_table_foreach(emfsource->inline_table, emf_clone_inlines, emf);
+			emf->mode = emfsource->mode;
+			g_free(emf->charset);
+			emf->charset = g_strdup(emfsource->charset);
+			g_free (emf->default_charset);
+			emf->default_charset = g_strdup (emfsource->default_charset);
+
+			em_format_clear_headers(emf);
+			for (h = (struct _EMFormatHeader *)emfsource->header_list.head; h->next; h = h->next)
+				em_format_add_header(emf, h->name, h->flags);
+		}
+	}
+
+	/* what a mess */
+	if (folder != emf->folder) {
+		if (emf->folder)
+			camel_object_unref(emf->folder);
+		if (folder)
+			camel_object_ref(folder);
+		emf->folder = folder;
+	}
+
+	if (uid != emf->uid) {
+		g_free(emf->uid);
+		emf->uid = g_strdup(uid);
+	}
+
+	if (msg != emf->message) {
+		if (emf->message)
+			camel_object_unref(emf->message);
+		if (msg)
+			camel_object_ref(msg);
+		emf->message = msg;
+	}
+
+	g_string_truncate(emf->part_id, 0);
+	if (folder != NULL)
+		/* TODO build some string based on the folder name/location? */
+		g_string_append_printf(emf->part_id, ".%p", folder);
+	if (uid != NULL)
+		g_string_append_printf(emf->part_id, ".%s", uid);
+}
+
+static void
+emf_format_secure(EMFormat *emf, CamelStream *stream, CamelMimePart *part, CamelCipherValidity *valid)
+{
+	CamelCipherValidity *save = emf->valid_parent;
+	int len;
+
+	/* Note that this also requires support from higher up in the class chain
+	    - validity needs to be cleared when you start output
+	    - also needs to be cleared (but saved) whenever you start a new message. */
+
+	if (emf->valid == NULL) {
+		emf->valid = valid;
+	} else {
+		camel_dlist_addtail(&emf->valid_parent->children, (CamelDListNode *)valid);
+		camel_cipher_validity_envelope(emf->valid_parent, valid);
+	}
+
+	emf->valid_parent = valid;
+
+	len = emf->part_id->len;
+	g_string_append_printf(emf->part_id, ".secured");
+	em_format_part(emf, stream, part);
+	g_string_truncate(emf->part_id, len);
+
+	emf->valid_parent = save;
+}
+
+static gboolean
+emf_busy(EMFormat *emf)
+{
+	return FALSE;
+}
+
+/**
+ * em_format_format_clone:
+ * @emf: an #EMFormat
+ * @folder: a #CamelFolder or %NULL
+ * @uid: Message UID or %NULL
+ * @msg: a #CamelMimeMessage or %NULL
+ * @emfsource: Used as a basis for user-altered layout, e.g. inline viewed
+ * attachments.
+ *
+ * Format a message @msg.  If @emfsource is non NULL, then the status of
+ * inlined expansion and so forth is copied direction from @emfsource.
+ *
+ * By passing the same value for @emf and @emfsource, you can perform
+ * a display refresh, or it can be used to generate an identical layout,
+ * e.g. to print what the user has shown inline.
+ **/
+void
+em_format_format_clone (EMFormat *emf,
+                        CamelFolder *folder,
+                        const gchar *uid,
+                        CamelMimeMessage *message,
+                        EMFormat *source)
+{
+	EMFormatClass *class;
+
+	g_return_if_fail (EM_IS_FORMAT (emf));
+	g_return_if_fail (folder == NULL || CAMEL_IS_FOLDER (folder));
+	g_return_if_fail (message == NULL || CAMEL_IS_MIME_MESSAGE (message));
+	g_return_if_fail (source == NULL || EM_IS_FORMAT (source));
+
+	class = EM_FORMAT_GET_CLASS (emf);
+	g_return_if_fail (class->format_clone != NULL);
+	class->format_clone (emf, folder, uid, message, source);
+}
+
+void
+em_format_format (EMFormat *emf,
+                  CamelFolder *folder,
+                  const gchar *uid,
+                  CamelMimeMessage *message)
+{
+	/* em_format_format_clone() will check the arguments. */
+	em_format_format_clone (emf, folder, uid, message, NULL);
+}
+
+void
+em_format_redraw (EMFormat *emf)
+{
+	g_return_if_fail (EM_IS_FORMAT (emf));
+
+	em_format_format_clone (
+		emf, emf->folder, emf->uid, emf->message, emf);
+}
+
+/**
+ * em_format_set_mode:
+ * @emf:
+ * @type:
+ *
+ * Set display mode, EM_FORMAT_SOURCE, EM_FORMAT_ALLHEADERS, or
+ * EM_FORMAT_NORMAL.
+ **/
+void
+em_format_set_mode(EMFormat *emf, em_format_mode_t type)
+{
+	if (emf->mode == type)
+		return;
+
+	emf->mode = type;
+
+	/* force redraw if type changed afterwards */
+	if (emf->message)
+		em_format_redraw(emf);
+}
+
+/**
+ * em_format_set_charset:
+ * @emf:
+ * @charset:
+ *
+ * set override charset on formatter.  message will be redisplayed if
+ * required.
+ **/
+void
+em_format_set_charset(EMFormat *emf, const char *charset)
+{
+	if ((emf->charset && charset && g_ascii_strcasecmp(emf->charset, charset) == 0)
+	    || (emf->charset == NULL && charset == NULL)
+	    || (emf->charset == charset))
+		return;
+
+	g_free(emf->charset);
+	emf->charset = g_strdup(charset);
+
+	if (emf->message)
+		em_format_redraw(emf);
+}
+
+/**
+ * em_format_set_default_charset:
+ * @emf:
+ * @charset:
+ *
+ * Set the fallback, default system charset to use when no other charsets
+ * are present.  Message will be redisplayed if required (and sometimes redisplayed
+ * when it isn't).
+ **/
+void
+em_format_set_default_charset(EMFormat *emf, const char *charset)
+{
+	if ((emf->default_charset && charset && g_ascii_strcasecmp(emf->default_charset, charset) == 0)
+	    || (emf->default_charset == NULL && charset == NULL)
+	    || (emf->default_charset == charset))
+		return;
+
+	g_free(emf->default_charset);
+	emf->default_charset = g_strdup(charset);
+
+	if (emf->message && emf->charset == NULL)
+		em_format_redraw(emf);
+}
+
+/**
+ * em_format_clear_headers:
+ * @emf:
+ *
+ * Clear the list of headers to be displayed.  This will force all headers to
+ * be shown.
+ **/
+void
+em_format_clear_headers(EMFormat *emf)
+{
+	EMFormatHeader *eh;
+
+	while ((eh = (EMFormatHeader *)e_dlist_remhead(&emf->header_list)))
+		g_free(eh);
+}
+
+/* note: also copied in em-mailer-prefs.c */
+static const struct {
+	const char *name;
+	guint32 flags;
+} default_headers[] = {
+	{ N_("From"), EM_FORMAT_HEADER_BOLD },
+	{ N_("Reply-To"), EM_FORMAT_HEADER_BOLD },
+	{ N_("To"), EM_FORMAT_HEADER_BOLD },
+	{ N_("Cc"), EM_FORMAT_HEADER_BOLD },
+	{ N_("Bcc"), EM_FORMAT_HEADER_BOLD },
+	{ N_("Subject"), EM_FORMAT_HEADER_BOLD },
+	{ N_("Date"), EM_FORMAT_HEADER_BOLD },
+	{ N_("Newsgroups"), EM_FORMAT_HEADER_BOLD },
+	{ N_("Face"), 0 },
+};
+
+/**
+ * em_format_default_headers:
+ * @emf:
+ *
+ * Set the headers to show to the default list.
+ *
+ * From, Reply-To, To, Cc, Bcc, Subject and Date.
+ **/
+void
+em_format_default_headers(EMFormat *emf)
+{
+	int i;
+
+	em_format_clear_headers(emf);
+	for (i=0; i<sizeof(default_headers)/sizeof(default_headers[0]); i++)
+		em_format_add_header(emf, default_headers[i].name, default_headers[i].flags);
+}
+
+/**
+ * em_format_add_header:
+ * @emf:
+ * @name: The name of the header, as it will appear during output.
+ * @flags: EM_FORMAT_HEAD_* defines to control display attributes.
+ *
+ * Add a specific header to show.  If any headers are set, they will
+ * be displayed in the order set by this function.  Certain known
+ * headers included in this list will be shown using special
+ * formatting routines.
+ **/
+void em_format_add_header(EMFormat *emf, const char *name, guint32 flags)
+{
+	EMFormatHeader *h;
+
+	h = g_malloc(sizeof(*h) + strlen(name));
+	h->flags = flags;
+	strcpy(h->name, name);
+	e_dlist_addtail(&emf->header_list, (EDListNode *)h);
+}
+
+/**
+ * em_format_is_attachment:
+ * @emf:
+ * @part: Part to check.
+ *
+ * Returns true if the part is an attachment.
+ *
+ * A part is not considered an attachment if it is a
+ * multipart, or a text part with no filename.  It is used
+ * to determine if an attachment header should be displayed for
+ * the part.
+ *
+ * Content-Disposition is not checked.
+ *
+ * Return value: TRUE/FALSE
+ **/
+int em_format_is_attachment(EMFormat *emf, CamelMimePart *part)
+{
+	/*CamelContentType *ct = camel_mime_part_get_content_type(part);*/
+	CamelDataWrapper *dw = camel_medium_get_content_object((CamelMedium *)part);
+
+	/*printf("checking is attachment %s/%s\n", ct->type, ct->subtype);*/
+	return !(camel_content_type_is (dw->mime_type, "multipart", "*")
+		 || camel_content_type_is(dw->mime_type, "application", "x-pkcs7-mime")
+		 || camel_content_type_is(dw->mime_type, "application", "pkcs7-mime")
+		 || camel_content_type_is(dw->mime_type, "application", "x-inlinepgp-signed")
+		 || camel_content_type_is(dw->mime_type, "application", "x-inlinepgp-encrypted")
+		 || camel_content_type_is(dw->mime_type, "x-evolution", "evolution-rss-feed")
+		 || (camel_content_type_is (dw->mime_type, "text", "*")
+		     && camel_mime_part_get_filename(part) == NULL));
+}
+
+/**
+ * em_format_is_inline:
+ * @emf:
+ * @part:
+ * @partid: format->part_id part id of this part.
+ * @handle: handler for this part
+ *
+ * Returns true if the part should be displayed inline.  Any part with
+ * a Content-Disposition of inline, or if the @handle has a default
+ * inline set, will be shown inline.
+ *
+ * :set_inline() called on the same part will override any calculated
+ * value.
+ *
+ * Return value:
+ **/
+int em_format_is_inline(EMFormat *emf, const char *partid, CamelMimePart *part, const EMFormatHandler *handle)
+{
+	struct _EMFormatCache *emfc;
+	const char *tmp;
+
+	if (handle == NULL)
+		return FALSE;
+
+	emfc = g_hash_table_lookup(emf->inline_table, partid);
+	if (emfc && emfc->state != INLINE_UNSET)
+		return emfc->state & 1;
+
+	/* some types need to override the disposition, e.g. application/x-pkcs7-mime */
+	if (handle->flags & EM_FORMAT_HANDLER_INLINE_DISPOSITION)
+		return TRUE;
+
+	tmp = camel_mime_part_get_disposition(part);
+	if (tmp)
+		return g_ascii_strcasecmp(tmp, "inline") == 0;
+
+	/* otherwise, use the default for this handler type */
+	return (handle->flags & EM_FORMAT_HANDLER_INLINE) != 0;
+}
+
+/**
+ * em_format_set_inline:
+ * @emf:
+ * @partid: id of part
+ * @state:
+ *
+ * Force the attachment @part to be expanded or hidden explictly to match
+ * @state.  This is used only to record the change for a redraw or
+ * cloned layout render and does not force a redraw.
+ **/
+void em_format_set_inline(EMFormat *emf, const char *partid, int state)
+{
+	struct _EMFormatCache *emfc;
+
+	emfc = g_hash_table_lookup(emf->inline_table, partid);
+	if (emfc == NULL) {
+		emfc = emf_insert_cache(emf, partid);
+	} else if (emfc->state != INLINE_UNSET && (emfc->state & 1) == state)
+		return;
+
+	emfc->state = state?INLINE_ON:INLINE_OFF;
+
+	if (emf->message)
+		em_format_redraw(emf);
+}
+
+void
+em_format_format_attachment (EMFormat *emf,
+                             CamelStream *stream,
+                             CamelMimePart *mime_part,
+                             const gchar *mime_type,
+                             const struct _EMFormatHandler *info)
+{
+	EMFormatClass *class;
+
+	g_return_if_fail (EM_IS_FORMAT (emf));
+	g_return_if_fail (CAMEL_IS_STREAM (stream));
+	g_return_if_fail (CAMEL_IS_MIME_PART (mime_part));
+	g_return_if_fail (mime_type != NULL);
+	g_return_if_fail (info != NULL);
+
+	class = EM_FORMAT_GET_CLASS (emf);
+	g_return_if_fail (class->format_attachment != NULL);
+	class->format_attachment (emf, stream, mime_part, mime_type, info);
+}
+
+void
+em_format_format_error (EMFormat *emf,
+                        CamelStream *stream,
+                        const gchar *format,
+                        ...)
+{
+	EMFormatClass *class;
+	gchar *errmsg;
+	va_list ap;
+
+	g_return_if_fail (EM_IS_FORMAT (emf));
+	g_return_if_fail (CAMEL_IS_STREAM (stream));
+	g_return_if_fail (format != NULL);
+
+	class = EM_FORMAT_GET_CLASS (emf);
+	g_return_if_fail (class->format_error != NULL);
+
+	va_start (ap, format);
+	errmsg = g_strdup_vprintf (format, ap);
+	class->format_error (emf, stream, errmsg);
+	g_free (errmsg);
+	va_end (ap);
+}
+
+void
+em_format_format_secure (EMFormat *emf,
+                         CamelStream *stream,
+                         CamelMimePart *mime_part,
+                         CamelCipherValidity *valid)
+{
+	EMFormatClass *class;
+
+	g_return_if_fail (EM_IS_FORMAT (emf));
+	g_return_if_fail (CAMEL_IS_STREAM (stream));
+	g_return_if_fail (CAMEL_IS_MIME_PART (mime_part));
+	g_return_if_fail (valid != NULL);
+
+	class = EM_FORMAT_GET_CLASS (emf);
+	g_return_if_fail (class->format_secure != NULL);
+	class->format_secure (emf, stream, mime_part, valid);
+
+	if (emf->valid_parent == NULL && emf->valid != NULL) {
+		camel_cipher_validity_free (emf->valid);
+		emf->valid = NULL;
+	}
+}
+
+void
+em_format_format_source (EMFormat *emf,
+                         CamelStream *stream,
+                         CamelMimePart *mime_part)
+{
+	EMFormatClass *class;
+
+	g_return_if_fail (EM_IS_FORMAT (emf));
+	g_return_if_fail (CAMEL_IS_STREAM (stream));
+	g_return_if_fail (CAMEL_IS_MIME_PART (mime_part));
+
+	class = EM_FORMAT_GET_CLASS (emf);
+	g_return_if_fail (class->format_source != NULL);
+	class->format_source (emf, stream, mime_part);
+}
+
+gboolean
+em_format_busy (EMFormat *emf)
+{
+	EMFormatClass *class;
+
+	g_return_val_if_fail (EM_IS_FORMAT (emf), FALSE);
+
+	class = EM_FORMAT_GET_CLASS (emf);
+	g_return_val_if_fail (class->busy != NULL, FALSE);
+	return class->busy (emf);
+}
+
+/* should this be virtual? */
+void
+em_format_format_content(EMFormat *emf, CamelStream *stream, CamelMimePart *part)
+{
+	CamelDataWrapper *dw = camel_medium_get_content_object((CamelMedium *)part);
+
+	if (camel_content_type_is (dw->mime_type, "text", "*"))
+		em_format_format_text(emf, stream, (CamelDataWrapper *)part);
+	else
+		camel_data_wrapper_decode_to_stream(dw, stream);
+}
+
+/**
+ * em_format_format_content:
+ * @emf:
+ * @stream: Where to write the converted text
+ * @part: Part whose container is to be formatted
+ *
+ * Decode/output a part's content to @stream.
+ **/
+void
+em_format_format_text(EMFormat *emf, CamelStream *stream, CamelDataWrapper *dw)
+{
+	CamelStreamFilter *filter_stream;
+	CamelMimeFilterCharset *filter;
+	const char *charset = NULL;
+	CamelMimeFilterWindows *windows = NULL;
+	CamelStream *mem_stream = NULL;
+	size_t size;
+	size_t max;
+	GConfClient *gconf;
+
+	if (emf->charset) {
+		charset = emf->charset;
+	} else if (dw->mime_type
+		   && (charset = camel_content_type_param (dw->mime_type, "charset"))
+		   && g_ascii_strncasecmp(charset, "iso-8859-", 9) == 0) {
+		CamelStream *null;
+
+		/* Since a few Windows mailers like to claim they sent
+		 * out iso-8859-# encoded text when they really sent
+		 * out windows-cp125#, do some simple sanity checking
+		 * before we move on... */
+
+		null = camel_stream_null_new();
+		filter_stream = camel_stream_filter_new_with_stream(null);
+		camel_object_unref(null);
+
+		windows = (CamelMimeFilterWindows *)camel_mime_filter_windows_new(charset);
+		camel_stream_filter_add(filter_stream, (CamelMimeFilter *)windows);
+
+		camel_data_wrapper_decode_to_stream(dw, (CamelStream *)filter_stream);
+		camel_stream_flush((CamelStream *)filter_stream);
+		camel_object_unref(filter_stream);
+
+		charset = camel_mime_filter_windows_real_charset (windows);
+	} else if (charset == NULL) {
+		charset = emf->default_charset;
+	}
+
+	mem_stream = (CamelStream *)camel_stream_mem_new ();
+	filter_stream = camel_stream_filter_new_with_stream(mem_stream);
+
+	if ((filter = camel_mime_filter_charset_new_convert(charset, "UTF-8"))) {
+		camel_stream_filter_add(filter_stream, (CamelMimeFilter *) filter);
+		camel_object_unref(filter);
+	}
+
+	max = -1;
+
+	gconf = gconf_client_get_default ();
+	if (gconf_client_get_bool (gconf, "/apps/evolution/mail/display/force_message_limit", NULL)) {
+		max = gconf_client_get_int (gconf, "/apps/evolution/mail/display/message_text_part_limit", NULL);
+		if (max == 0)
+			max = -1;
+	}
+	g_object_unref (gconf);
+
+	size = camel_data_wrapper_decode_to_stream(emf->mode == EM_FORMAT_SOURCE ? (CamelDataWrapper *)dw: camel_medium_get_content_object((CamelMedium *)dw), (CamelStream *)filter_stream);
+	camel_stream_flush((CamelStream *)filter_stream);
+	camel_object_unref(filter_stream);
+	camel_stream_reset (mem_stream);
+
+	if (max == -1 || size == -1 || size < (max * 1024) || emf->composer) {
+		camel_stream_write_to_stream(mem_stream, (CamelStream *)stream);
+		camel_stream_flush((CamelStream *)stream);
+	} else {
+		((EMFormatClass *)G_OBJECT_GET_CLASS(emf))->format_optional(emf, stream, (CamelMimePart *)dw, mem_stream);
+	}
+
+	if (windows)
+		camel_object_unref(windows);
+}
+
+/**
+ * em_format_describe_part:
+ * @part:
+ * @mimetype:
+ *
+ * Generate a simple textual description of a part, @mime_type represents the
+ * the content.
+ *
+ * Return value:
+ **/
+char *
+em_format_describe_part(CamelMimePart *part, const char *mime_type)
+{
+	GString *stext;
+	const char *filename, *description;
+	char *content_type, *desc;
+
+	stext = g_string_new("");
+	content_type = g_content_type_from_mime_type (mime_type);
+	desc = g_content_type_get_description (content_type ? content_type : mime_type);
+	g_free (content_type);
+	g_string_append_printf (stext, _("%s attachment"), desc ? desc : mime_type);
+	g_free (desc);
+	if ((filename = camel_mime_part_get_filename (part)))
+		g_string_append_printf(stext, " (%s)", filename);
+	if ((description = camel_mime_part_get_description(part)) &&
+		(*description != 0) &&
+		!(filename && (strcmp(filename, description) == 0)))
+		g_string_append_printf(stext, ", \"%s\"", description);
+
+	return g_string_free (stext, FALSE);
+}
+
+/* ********************************************************************** */
+
+#ifdef ENABLE_SMIME
+static void
+emf_application_xpkcs7mime(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelCipherContext *context;
+	CamelException *ex;
+	CamelMimePart *opart;
+	CamelCipherValidity *valid;
+	struct _EMFormatCache *emfc;
+
+	/* should this perhaps run off a key of ".secured" ? */
+	emfc = g_hash_table_lookup(emf->inline_table, emf->part_id->str);
+	if (emfc && emfc->valid) {
+		em_format_format_secure(emf, stream, emfc->secured, camel_cipher_validity_clone(emfc->valid));
+		return;
+	}
+
+	ex = camel_exception_new();
+
+	context = camel_smime_context_new(emf->session);
+
+	opart = camel_mime_part_new();
+	valid = camel_cipher_decrypt(context, part, opart, ex);
+	if (valid == NULL) {
+		em_format_format_error(emf, stream, "%s", ex->desc?ex->desc:_("Could not parse S/MIME message: Unknown error"));
+		em_format_part_as(emf, stream, part, NULL);
+	} else {
+		if (emfc == NULL)
+			emfc = emf_insert_cache(emf, emf->part_id->str);
+
+		emfc->valid = camel_cipher_validity_clone(valid);
+		camel_object_ref((emfc->secured = opart));
+
+		em_format_format_secure(emf, stream, opart, valid);
+	}
+
+	camel_object_unref(opart);
+	camel_object_unref(context);
+	camel_exception_free(ex);
+}
+#endif
+
+/* RFC 1740 */
+static void
+emf_multipart_appledouble(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelMultipart *mp = (CamelMultipart *)camel_medium_get_content_object((CamelMedium *)part);
+	CamelMimePart *mime_part;
+	int len;
+
+	if (!CAMEL_IS_MULTIPART(mp)) {
+		em_format_format_source(emf, stream, part);
+		return;
+	}
+
+	mime_part = camel_multipart_get_part(mp, 1);
+	if (mime_part) {
+		/* try the data fork for something useful, doubtful but who knows */
+		len = emf->part_id->len;
+		g_string_append_printf(emf->part_id, ".appledouble.1");
+		em_format_part(emf, stream, mime_part);
+		g_string_truncate(emf->part_id, len);
+	} else
+		em_format_format_source(emf, stream, part);
+
+}
+
+/* RFC ??? */
+static void
+emf_multipart_mixed(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelMultipart *mp = (CamelMultipart *)camel_medium_get_content_object((CamelMedium *)part);
+	int i, nparts, len;
+
+	if (!CAMEL_IS_MULTIPART(mp)) {
+		em_format_format_source(emf, stream, part);
+		return;
+	}
+
+	len = emf->part_id->len;
+	nparts = camel_multipart_get_number(mp);
+	for (i = 0; i < nparts; i++) {
+		part = camel_multipart_get_part(mp, i);
+		g_string_append_printf(emf->part_id, ".mixed.%d", i);
+		em_format_part(emf, stream, part);
+		g_string_truncate(emf->part_id, len);
+	}
+}
+
+/* RFC 1740 */
+static void
+emf_multipart_alternative(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelMultipart *mp = (CamelMultipart *)camel_medium_get_content_object((CamelMedium *)part);
+	int i, nparts, bestid = 0;
+	CamelMimePart *best = NULL;
+
+	if (!CAMEL_IS_MULTIPART(mp)) {
+		em_format_format_source(emf, stream, part);
+		return;
+	}
+
+	/* as per rfc, find the last part we know how to display */
+	nparts = camel_multipart_get_number(mp);
+	for (i = 0; i < nparts; i++) {
+		CamelContentType *type;
+		char *mime_type;
+
+		/* is it correct to use the passed in *part here? */
+		part = camel_multipart_get_part(mp, i);
+
+		if (!part)
+			continue;
+
+		type = camel_mime_part_get_content_type (part);
+		mime_type = camel_content_type_simple (type);
+
+		camel_strdown (mime_type);
+
+		/*if (want_plain && !strcmp (mime_type, "text/plain"))
+		  return part;*/
+
+		if (em_format_find_handler(emf, mime_type)
+		    || (best == NULL && em_format_fallback_handler(emf, mime_type))) {
+			best = part;
+			bestid = i;
+		}
+
+		g_free(mime_type);
+	}
+
+	if (best) {
+		int len = emf->part_id->len;
+
+		g_string_append_printf(emf->part_id, ".alternative.%d", bestid);
+		em_format_part(emf, stream, best);
+		g_string_truncate(emf->part_id, len);
+	} else
+		emf_multipart_mixed(emf, stream, part, info);
+}
+
+static void
+emf_multipart_encrypted(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelCipherContext *context;
+	CamelException *ex;
+	const char *protocol;
+	CamelMimePart *opart;
+	CamelCipherValidity *valid;
+	CamelMultipartEncrypted *mpe;
+	struct _EMFormatCache *emfc;
+
+	/* should this perhaps run off a key of ".secured" ? */
+	emfc = g_hash_table_lookup(emf->inline_table, emf->part_id->str);
+	if (emfc && emfc->valid) {
+		em_format_format_secure(emf, stream, emfc->secured, camel_cipher_validity_clone(emfc->valid));
+		return;
+	}
+
+	mpe = (CamelMultipartEncrypted*)camel_medium_get_content_object((CamelMedium *)part);
+	if (!CAMEL_IS_MULTIPART_ENCRYPTED(mpe)) {
+		em_format_format_error(emf, stream, _("Could not parse MIME message. Displaying as source."));
+		em_format_format_source(emf, stream, part);
+		return;
+	}
+
+	/* Currently we only handle RFC2015-style PGP encryption. */
+	protocol = camel_content_type_param(((CamelDataWrapper *)mpe)->mime_type, "protocol");
+	if (!protocol || g_ascii_strcasecmp (protocol, "application/pgp-encrypted") != 0) {
+		em_format_format_error(emf, stream, _("Unsupported encryption type for multipart/encrypted"));
+		em_format_part_as(emf, stream, part, "multipart/mixed");
+		return;
+	}
+
+	ex = camel_exception_new();
+	context = camel_gpg_context_new(emf->session);
+	opart = camel_mime_part_new();
+	valid = camel_cipher_decrypt(context, part, opart, ex);
+	if (valid == NULL) {
+		em_format_format_error(emf, stream, ex->desc?_("Could not parse PGP/MIME message"):_("Could not parse PGP/MIME message: Unknown error"));
+		if (ex->desc)
+			em_format_format_error(emf, stream, "%s", ex->desc);
+		em_format_part_as(emf, stream, part, "multipart/mixed");
+	} else {
+		if (emfc == NULL)
+			emfc = emf_insert_cache(emf, emf->part_id->str);
+
+		emfc->valid = camel_cipher_validity_clone(valid);
+		camel_object_ref((emfc->secured = opart));
+
+		em_format_format_secure(emf, stream, opart, valid);
+	}
+
+	/* TODO: Make sure when we finalize this part, it is zero'd out */
+	camel_object_unref(opart);
+	camel_object_unref(context);
+	camel_exception_free(ex);
+}
+
+static void
+emf_write_related(EMFormat *emf, CamelStream *stream, EMFormatPURI *puri)
+{
+	em_format_format_content(emf, stream, puri->part);
+	camel_stream_close(stream);
+}
+
+/* RFC 2387 */
+static void
+emf_multipart_related(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelMultipart *mp = (CamelMultipart *)camel_medium_get_content_object((CamelMedium *)part);
+	CamelMimePart *body_part, *display_part = NULL;
+	CamelContentType *content_type;
+	const char *start;
+	int i, nparts, partidlen, displayid = 0;
+	char *oldpartid;
+	struct _EMFormatPURITree *ptree;
+	EMFormatPURI *puri, *purin;
+
+	if (!CAMEL_IS_MULTIPART(mp)) {
+		em_format_format_source(emf, stream, part);
+		return;
+	}
+
+	/* FIXME: put this stuff in a shared function */
+	nparts = camel_multipart_get_number(mp);
+	content_type = camel_mime_part_get_content_type(part);
+	start = camel_content_type_param (content_type, "start");
+	if (start && strlen(start)>2) {
+		int len;
+		const char *cid;
+
+		/* strip <>'s */
+		len = strlen (start) - 2;
+		start++;
+
+		for (i=0; i<nparts; i++) {
+			body_part = camel_multipart_get_part(mp, i);
+			cid = camel_mime_part_get_content_id(body_part);
+
+			if (cid && !strncmp(cid, start, len) && strlen(cid) == len) {
+				display_part = body_part;
+				displayid = i;
+				break;
+			}
+		}
+	} else {
+		display_part = camel_multipart_get_part(mp, 0);
+	}
+
+	if (display_part == NULL) {
+		emf_multipart_mixed(emf, stream, part, info);
+		return;
+	}
+
+	em_format_push_level(emf);
+
+	oldpartid = g_strdup(emf->part_id->str);
+	partidlen = emf->part_id->len;
+
+	/* queue up the parts for possible inclusion */
+	for (i = 0; i < nparts; i++) {
+		body_part = camel_multipart_get_part(mp, i);
+		if (body_part != display_part) {
+			/* set the partid since add_puri uses it */
+			g_string_append_printf(emf->part_id, ".related.%d", i);
+			puri = em_format_add_puri(emf, sizeof(EMFormatPURI), NULL, body_part, emf_write_related);
+			g_string_truncate(emf->part_id, partidlen);
+			d(printf(" part '%s' '%s' added\n", puri->uri?puri->uri:"", puri->cid));
+		}
+	}
+
+	g_string_append_printf(emf->part_id, ".related.%d", displayid);
+	em_format_part(emf, stream, display_part);
+	g_string_truncate(emf->part_id, partidlen);
+	camel_stream_flush(stream);
+
+	ptree = emf->pending_uri_level;
+	puri = (EMFormatPURI *)ptree->uri_list.head;
+	purin = puri->next;
+	while (purin) {
+		if (puri->use_count == 0) {
+			d(printf("part '%s' '%s' used '%d'\n", puri->uri?puri->uri:"", puri->cid, puri->use_count));
+			if (puri->func == emf_write_related) {
+				g_string_printf(emf->part_id, "%s", puri->part_id);
+				em_format_part(emf, stream, puri->part);
+			} else
+				d(printf("unreferenced uri generated by format code: %s\n", puri->uri?puri->uri:puri->cid));
+		}
+		puri = purin;
+		purin = purin->next;
+	}
+
+	g_string_printf(emf->part_id, "%s", oldpartid);
+	g_free(oldpartid);
+
+	em_format_pull_level(emf);
+}
+
+static void
+emf_multipart_signed(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelMimePart *cpart;
+	CamelMultipartSigned *mps;
+	CamelCipherContext *cipher = NULL;
+	struct _EMFormatCache *emfc;
+
+	/* should this perhaps run off a key of ".secured" ? */
+	emfc = g_hash_table_lookup(emf->inline_table, emf->part_id->str);
+	if (emfc && emfc->valid) {
+		em_format_format_secure(emf, stream, emfc->secured, camel_cipher_validity_clone(emfc->valid));
+		return;
+	}
+
+	mps = (CamelMultipartSigned *)camel_medium_get_content_object((CamelMedium *)part);
+	if (!CAMEL_IS_MULTIPART_SIGNED(mps)
+	    || (cpart = camel_multipart_get_part((CamelMultipart *)mps, CAMEL_MULTIPART_SIGNED_CONTENT)) == NULL) {
+		em_format_format_error(emf, stream, _("Could not parse MIME message. Displaying as source."));
+		em_format_format_source(emf, stream, part);
+		return;
+	}
+
+	/* FIXME: Should be done via a plugin interface */
+	/* FIXME: duplicated in em-format-html-display.c */
+	if (mps->protocol) {
+#ifdef ENABLE_SMIME
+		if (g_ascii_strcasecmp("application/x-pkcs7-signature", mps->protocol) == 0
+		    || g_ascii_strcasecmp("application/pkcs7-signature", mps->protocol) == 0)
+			cipher = camel_smime_context_new(emf->session);
+		else
+#endif
+			if (g_ascii_strcasecmp("application/pgp-signature", mps->protocol) == 0)
+				cipher = camel_gpg_context_new(emf->session);
+	}
+
+	if (cipher == NULL) {
+		em_format_format_error(emf, stream, _("Unsupported signature format"));
+		em_format_part_as(emf, stream, part, "multipart/mixed");
+	} else {
+		CamelException *ex = camel_exception_new();
+		CamelCipherValidity *valid;
+
+		valid = camel_cipher_verify(cipher, part, ex);
+		if (valid == NULL) {
+			em_format_format_error(emf, stream, ex->desc?_("Error verifying signature"):_("Unknown error verifying signature"));
+			if (ex->desc)
+				em_format_format_error(emf, stream, "%s", ex->desc);
+			em_format_part_as(emf, stream, part, "multipart/mixed");
+		} else {
+			if (emfc == NULL)
+				emfc = emf_insert_cache(emf, emf->part_id->str);
+
+			emfc->valid = camel_cipher_validity_clone(valid);
+			camel_object_ref((emfc->secured = cpart));
+
+			em_format_format_secure(emf, stream, cpart, valid);
+		}
+
+		camel_exception_free(ex);
+		camel_object_unref(cipher);
+	}
+}
+
+static void
+emf_message_rfc822(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	CamelDataWrapper *dw = camel_medium_get_content_object((CamelMedium *)part);
+	const EMFormatHandler *handle;
+	int len;
+
+	if (!CAMEL_IS_MIME_MESSAGE(dw)) {
+		em_format_format_source(emf, stream, part);
+		return;
+	}
+
+	len = emf->part_id->len;
+	g_string_append_printf(emf->part_id, ".rfc822");
+
+	handle = em_format_find_handler(emf, "x-evolution/message/rfc822");
+	if (handle)
+		handle->handler(emf, stream, (CamelMimePart *)dw, handle);
+
+	g_string_truncate(emf->part_id, len);
+}
+
+static void
+emf_message_deliverystatus(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+	em_format_format_text(emf, stream, (CamelDataWrapper *)part);
+}
+
+static void
+emf_inlinepgp_signed(EMFormat *emf, CamelStream *stream, CamelMimePart *ipart, EMFormatHandler *info)
+{
+	CamelStreamFilter *filtered_stream;
+	CamelMimeFilterPgp *pgp_filter;
+	CamelContentType *content_type;
+	CamelCipherContext *cipher;
+	CamelCipherValidity *valid;
+	CamelDataWrapper *dw;
+	CamelMimePart *opart;
+	CamelStream *ostream;
+	CamelException *ex;
+	char *type;
+
+	if (!ipart) {
+		em_format_format_error(emf, stream, _("Unknown error verifying signature"));
+		return;
+	}
+
+	ex = camel_exception_new();
+	cipher = camel_gpg_context_new(emf->session);
+	/* Verify the signature of the message */
+	valid = camel_cipher_verify(cipher, ipart, ex);
+	if (!valid) {
+		em_format_format_error(emf, stream, ex->desc?_("Error verifying signature"):_("Unknown error verifying signature"));
+		if (ex->desc)
+			em_format_format_error(emf, stream, "%s", ex->desc);
+		em_format_format_source(emf, stream, ipart);
+		/* I think this will loop: em_format_part_as(emf, stream, part, "text/plain"); */
+		camel_exception_free(ex);
+		camel_object_unref(cipher);
+		return;
+    	}
+
+	/* Setup output stream */
+	ostream = camel_stream_mem_new();
+	filtered_stream = camel_stream_filter_new_with_stream(ostream);
+
+	/* Add PGP header / footer filter */
+	pgp_filter = (CamelMimeFilterPgp *)camel_mime_filter_pgp_new();
+	camel_stream_filter_add(filtered_stream, (CamelMimeFilter *)pgp_filter);
+	camel_object_unref(pgp_filter);
+
+	/* Pass through the filters that have been setup */
+	dw = camel_medium_get_content_object((CamelMedium *)ipart);
+	camel_data_wrapper_decode_to_stream(dw, (CamelStream *)filtered_stream);
+	camel_stream_flush((CamelStream *)filtered_stream);
+	camel_object_unref(filtered_stream);
+
+	/* Create a new text/plain MIME part containing the signed content preserving the original part's Content-Type params */
+	content_type = camel_mime_part_get_content_type (ipart);
+	type = camel_content_type_format (content_type);
+	content_type = camel_content_type_decode (type);
+	g_free (type);
+
+	g_free (content_type->type);
+	content_type->type = g_strdup ("text");
+	g_free (content_type->subtype);
+	content_type->subtype = g_strdup ("plain");
+	type = camel_content_type_format (content_type);
+	camel_content_type_unref (content_type);
+
+	dw = camel_data_wrapper_new ();
+	camel_data_wrapper_construct_from_stream (dw, ostream);
+	camel_data_wrapper_set_mime_type (dw, type);
+	g_free (type);
+
+	opart = camel_mime_part_new ();
+	camel_medium_set_content_object ((CamelMedium *) opart, dw);
+	camel_data_wrapper_set_mime_type_field ((CamelDataWrapper *) opart, dw->mime_type);
+
+	/* Pass it off to the real formatter */
+	em_format_format_secure(emf, stream, opart, valid);
+
+	/* Clean Up */
+	camel_object_unref(dw);
+	camel_object_unref(opart);
+	camel_object_unref(ostream);
+	camel_object_unref(cipher);
+	camel_exception_free(ex);
+}
+
+static void
+emf_inlinepgp_encrypted(EMFormat *emf, CamelStream *stream, CamelMimePart *ipart, EMFormatHandler *info)
+{
+	CamelCipherContext *cipher;
+	CamelCipherValidity *valid;
+	CamelException *ex;
+	CamelMimePart *opart;
+	CamelDataWrapper *dw;
+	char *mime_type;
+
+	cipher = camel_gpg_context_new(emf->session);
+	ex = camel_exception_new();
+	opart = camel_mime_part_new();
+	/* Decrypt the message */
+	valid = camel_cipher_decrypt (cipher, ipart, opart, ex);
+	if (!valid) {
+		em_format_format_error(emf, stream, ex->desc?_("Could not parse PGP message"):_("Could not parse PGP message: Unknown error"));
+		if (ex->desc)
+			em_format_format_error(emf, stream, "%s", ex->desc);
+		em_format_format_source(emf, stream, ipart);
+		/* I think this will loop: em_format_part_as(emf, stream, part, "text/plain"); */
+		camel_exception_free(ex);
+		camel_object_unref(cipher);
+		camel_object_unref(opart);
+		return;
+	}
+
+	dw = camel_medium_get_content_object ((CamelMedium *)opart);
+	mime_type = camel_data_wrapper_get_mime_type (dw);
+
+	/* this ensures to show the 'opart' as inlined, if possible */
+	if (mime_type && g_ascii_strcasecmp (mime_type, "application/octet-stream") == 0) {
+		const char *snoop = em_format_snoop_type (opart);
+
+		if (snoop)
+			camel_data_wrapper_set_mime_type (dw, snoop);
+	}
+
+	g_free (mime_type);
+
+	/* Pass it off to the real formatter */
+	em_format_format_secure(emf, stream, opart, valid);
+
+	/* Clean Up */
+	camel_object_unref(opart);
+	camel_object_unref (cipher);
+	camel_exception_free (ex);
+}
+
+static EMFormatHandler type_builtin_table[] = {
+#ifdef ENABLE_SMIME
+	{ "application/x-pkcs7-mime", (EMFormatFunc)emf_application_xpkcs7mime, EM_FORMAT_HANDLER_INLINE_DISPOSITION },
+#endif
+	{ "multipart/alternative", emf_multipart_alternative },
+	{ "multipart/appledouble", emf_multipart_appledouble },
+	{ "multipart/encrypted", emf_multipart_encrypted },
+	{ "multipart/mixed", emf_multipart_mixed },
+	{ "multipart/signed", emf_multipart_signed },
+	{ "multipart/related", emf_multipart_related },
+	{ "multipart/*", emf_multipart_mixed },
+	{ "message/rfc822", emf_message_rfc822, EM_FORMAT_HANDLER_INLINE },
+	{ "message/news", emf_message_rfc822, EM_FORMAT_HANDLER_INLINE },
+	{ "message/delivery-status", emf_message_deliverystatus },
+	{ "message/*", emf_message_rfc822, EM_FORMAT_HANDLER_INLINE },
+
+	/* Insert brokenly-named parts here */
+#ifdef ENABLE_SMIME
+	{ "application/pkcs7-mime", (EMFormatFunc)emf_application_xpkcs7mime, EM_FORMAT_HANDLER_INLINE_DISPOSITION },
+#endif
+
+	/* internal types */
+	{ "application/x-inlinepgp-signed", (EMFormatFunc)emf_inlinepgp_signed },
+	{ "application/x-inlinepgp-encrypted", (EMFormatFunc)emf_inlinepgp_encrypted },
+};
+
+static void
+emf_builtin_init(EMFormatClass *class)
+{
+	int i;
+
+	for (i=0;i<sizeof(type_builtin_table)/sizeof(type_builtin_table[0]);i++)
+		g_hash_table_insert(class->type_handlers, type_builtin_table[i].mime_type, &type_builtin_table[i]);
+}
+
+/**
+ * em_format_snoop_type:
+ * @part:
+ *
+ * Tries to snoop the mime type of a part.
+ *
+ * Return value: NULL if unknown (more likely application/octet-stream).
+ **/
+const char *
+em_format_snoop_type (CamelMimePart *part)
+{
+	/* cache is here only to be able still return const char * */
+	static GHashTable *types_cache = NULL;
+
+	const char *filename;
+	char *name_type = NULL, *magic_type = NULL, *res, *tmp;
+	CamelDataWrapper *dw;
+
+	filename = camel_mime_part_get_filename (part);
+	if (filename != NULL)
+		name_type = e_util_guess_mime_type (filename, FALSE);
+
+	dw = camel_medium_get_content_object((CamelMedium *)part);
+	if (!camel_data_wrapper_is_offline(dw)) {
+		CamelStreamMem *mem = (CamelStreamMem *)camel_stream_mem_new();
+
+		if (camel_data_wrapper_decode_to_stream(dw, (CamelStream *)mem) > 0) {
+			char *ct = g_content_type_guess (filename, mem->buffer->data, mem->buffer->len, NULL);
+
+			if (ct)
+				magic_type = g_content_type_get_mime_type (ct);
+
+			g_free (ct);
+		}
+		camel_object_unref(mem);
+	}
+
+	d(printf("snooped part, magic_type '%s' name_type '%s'\n", magic_type, name_type));
+
+	/* If gvfs doesn't recognize the data by magic, but it
+	 * contains English words, it will call it text/plain. If the
+	 * filename-based check came up with something different, use
+	 * that instead and if it returns "application/octet-stream"
+	 * try to do better with the filename check.
+	 */
+
+	if (magic_type) {
+		if (name_type
+		    && (!strcmp(magic_type, "text/plain")
+			|| !strcmp(magic_type, "application/octet-stream")))
+			res = name_type;
+		else
+			res = magic_type;
+	} else
+		res = name_type;
+
+
+	if (res != name_type)
+		g_free (name_type);
+
+	if (res != magic_type)
+		g_free (magic_type);
+
+	if (!types_cache)
+		types_cache = g_hash_table_new_full (g_str_hash, g_str_equal, (GDestroyNotify) g_free, (GDestroyNotify) NULL);
+
+	if (res) {
+		tmp = g_hash_table_lookup (types_cache, res);
+		if (tmp) {
+			g_free (res);
+			res = tmp;
+		} else {
+			g_hash_table_insert (types_cache, res, res);
+		}
+	}
+
+	return res;
+
+	/* We used to load parts to check their type, we dont anymore,
+	   see bug #11778 for some discussion */
+}