/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors: Dan Winship <danw@ximian.com>
* Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright 2000-2003 Ximian, Inc. (www.ximian.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h> /* for strstr */
#include <ctype.h>
#include <fcntl.h>
#include <gconf/gconf.h>
#include <gconf/gconf-client.h>
#include <libgnome/gnome-util.h>
#include <libgnomevfs/gnome-vfs-mime-handlers.h>
#include <shell/e-setup.h>
#include <gal/util/e-iconv.h>
#include <camel/camel-mime-utils.h>
#include <camel/camel-stream-null.h>
#include <camel/camel-stream-filter.h>
#include <camel/camel-multipart-signed.h>
#include <camel/camel-mime-filter-enriched.h>
#include <camel/camel-mime-filter-tohtml.h>
#include <camel/camel-mime-filter-windows.h>
#include <e-util/e-trie.h>
#include <e-util/e-time-utils.h>
#include "mail.h"
#include "mail-tools.h"
#include "mail-display.h"
#include "mail-format.h"
#include "mail-mt.h"
#include "mail-crypto.h"
#define STANDARD_ISSUE_TABLE_OPEN "<table cellspacing=0 cellpadding=10 width=\"100%\">"
static gboolean handle_text_plain (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_text_enriched (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_text_html (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_image (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_multipart_mixed (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_multipart_related (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_multipart_alternative (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_multipart_appledouble (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_multipart_encrypted (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_multipart_signed (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_message_rfc822 (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_message_external_body (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
static gboolean handle_via_bonobo (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream);
/* writes the header info for a mime message into an html stream */
static void write_headers (MailDisplayStream *stream, MailDisplay *md, CamelMimeMessage *message);
/* dispatch html printing via mimetype */
static gboolean format_mime_part (CamelMimePart *part, MailDisplay *md, MailDisplayStream *stream);
static void
free_url (gpointer key, gpointer value, gpointer data)
{
g_free (key);
if (data)
g_byte_array_free (value, TRUE);
}
static void
free_part_urls (gpointer urls)
{
g_hash_table_foreach (urls, free_url, NULL);
g_hash_table_destroy (urls);
}
static void
free_data_urls (gpointer urls)
{
g_hash_table_foreach (urls, free_url, GINT_TO_POINTER (1));
g_hash_table_destroy (urls);
}
/**
* mail_format_mime_message:
* @mime_message: the input mime message
* @md: the MailDisplay to render into
*
* Writes a CamelMimeMessage out into a MailDisplay
**/
void
mail_format_mime_message (CamelMimeMessage *mime_message, MailDisplay *md,
MailDisplayStream *stream)
{
GHashTable *hash;
g_return_if_fail (CAMEL_IS_MIME_MESSAGE (mime_message));
hash = g_datalist_get_data (md->data, "part_urls");
if (!hash) {
hash = g_hash_table_new (g_str_hash, g_str_equal);
g_datalist_set_data_full (md->data, "part_urls", hash,
free_part_urls);
}
hash = g_datalist_get_data (md->data, "data_urls");
if (!hash) {
hash = g_hash_table_new (g_str_hash, g_str_equal);
g_datalist_set_data_full (md->data, "data_urls", hash,
free_data_urls);
}
hash = g_datalist_get_data (md->data, "attachment_states");
if (!hash) {
hash = g_hash_table_new (NULL, NULL);
g_datalist_set_data_full (md->data, "attachment_states", hash,
(GDestroyNotify) g_hash_table_destroy);
}
hash = g_datalist_get_data (md->data, "fake_parts");
if (!hash) {
hash = g_hash_table_new (NULL, NULL);
g_datalist_set_data_full (md->data, "fake_parts", hash,
(GDestroyNotify) g_hash_table_destroy);
}
write_headers (stream, md, mime_message);
format_mime_part (CAMEL_MIME_PART (mime_message), md, stream);
}
/**
* mail_format_raw_message:
* @mime_message: the input mime message
* @md: the MailDisplay to render into
*
* Writes a CamelMimeMessage source out into a MailDisplay
**/
void
mail_format_raw_message (CamelMimeMessage *mime_message, MailDisplay *md,
MailDisplayStream *stream)
{
CamelStreamFilter *filtered_stream;
CamelMimeFilter *html_filter;
CamelDataWrapper *wrapper;
guint32 flags;
g_return_if_fail (CAMEL_IS_MIME_MESSAGE (mime_message));
wrapper = CAMEL_DATA_WRAPPER (mime_message);
if (!mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
return;
filtered_stream = camel_stream_filter_new_with_stream ((CamelStream *) stream);
flags = CAMEL_MIME_FILTER_TOHTML_CONVERT_NL | CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES |
CAMEL_MIME_FILTER_TOHTML_ESCAPE_8BIT;
html_filter = camel_mime_filter_tohtml_new (flags, 0);
camel_stream_filter_add (filtered_stream, html_filter);
camel_object_unref (html_filter);
camel_stream_write_string ((CamelStream *) stream, STANDARD_ISSUE_TABLE_OPEN "<tr><td><tt>");
mail_format_data_wrapper_write_to_stream (wrapper, FALSE, md, (CamelStream *) filtered_stream);
camel_object_unref (filtered_stream);
camel_stream_write_string ((CamelStream *) stream, "</tt></td></tr></table>");
}
static const char *
get_cid (CamelMimePart *part, MailDisplay *md)
{
static int fake_cid_counter = 0;
char *cid;
/* If we have a real Content-ID, use it. If we don't,
* make a (syntactically invalid, unique) fake one.
*/
if (camel_mime_part_get_content_id (part)) {
cid = g_strdup_printf ("cid:%s", camel_mime_part_get_content_id (part));
} else
cid = g_strdup_printf ("cid:@@@%d", fake_cid_counter++);
return mail_display_add_url (md, "part_urls", cid, part);
}
static const char *
get_location (CamelMimePart *part, MailDisplay *md)
{
CamelURL *base;
const char *loc;
char *location;
base = mail_display_get_content_location (md);
loc = camel_mime_part_get_content_location (part);
if (!loc) {
if (!base)
return NULL;
location = camel_url_to_string (base, 0);
return mail_display_add_url (md, "part_urls", location, part);
}
/* kludge: If the multipart/related does not have a
Content-Location header and the HTML part doesn't contain a
Content-Location header either, then we will end up
generating a invalid unique identifier in the form of
"cid:@@@%d" for use in GtkHTML's iframe src url. This means
that when GtkHTML requests a relative URL, it will request
"cid:/%s" */
mail_display_add_url (md, "part_urls", g_strdup_printf ("cid:/%s", loc), part);
if (!strchr (loc, ':') && base) {
CamelURL *url;
mail_display_add_url (md, "part_urls", g_strdup (loc), part);
url = camel_url_new_with_base (base, loc);
location = camel_url_to_string (url, 0);
camel_url_free (url);
} else {
location = g_strdup (loc);
}
return mail_display_add_url (md, "part_urls", location, part);
}
static GHashTable *mime_handler_table, *mime_function_table;
static void
setup_mime_tables (void)
{
mime_handler_table = g_hash_table_new (g_str_hash, g_str_equal);
mime_function_table = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_insert (mime_function_table, "text/plain",
handle_text_plain);
g_hash_table_insert (mime_function_table, "text/richtext",
handle_text_enriched);
g_hash_table_insert (mime_function_table, "text/enriched",
handle_text_enriched);
g_hash_table_insert (mime_function_table, "text/html",
handle_text_html);
g_hash_table_insert (mime_function_table, "image/gif",
handle_image);
g_hash_table_insert (mime_function_table, "image/jpeg",
handle_image);
g_hash_table_insert (mime_function_table, "image/png",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-png",
handle_image);
g_hash_table_insert (mime_function_table, "image/tiff",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-bmp",
handle_image);
g_hash_table_insert (mime_function_table, "image/bmp",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-cmu-raster",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-ico",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-portable-anymap",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-portable-bitmap",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-portable-graymap",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-portable-pixmap",
handle_image);
g_hash_table_insert (mime_function_table, "image/x-xpixmap",
handle_image);
g_hash_table_insert (mime_function_table, "message/rfc822",
handle_message_rfc822);
g_hash_table_insert (mime_function_table, "message/news",
handle_message_rfc822);
g_hash_table_insert (mime_function_table, "message/external-body",
handle_message_external_body);
g_hash_table_insert (mime_function_table, "multipart/alternative",
handle_multipart_alternative);
g_hash_table_insert (mime_function_table, "multipart/related",
handle_multipart_related);
g_hash_table_insert (mime_function_table, "multipart/mixed",
handle_multipart_mixed);
g_hash_table_insert (mime_function_table, "multipart/appledouble",
handle_multipart_appledouble);
g_hash_table_insert (mime_function_table, "multipart/encrypted",
handle_multipart_encrypted);
g_hash_table_insert (mime_function_table, "multipart/signed",
handle_multipart_signed);
/* RFC 2046 says unrecognized text subtypes can be treated
* as text/plain (as long as you recognize the character set),
* and unrecognized multipart subtypes as multipart/mixed. */
g_hash_table_insert (mime_function_table, "text/*",
handle_text_plain);
g_hash_table_insert (mime_function_table, "multipart/*",
handle_multipart_mixed);
}
static gboolean
component_supports (Bonobo_ServerInfo *component, const char *mime_type)
{
Bonobo_ActivationProperty *prop;
CORBA_sequence_CORBA_string stringv;
int i;
prop = bonobo_server_info_prop_find (component, "repo_ids");
if (!prop || prop->v._d != Bonobo_ACTIVATION_P_STRINGV)
return FALSE;
stringv = prop->v._u.value_stringv;
for (i = 0; i < stringv._length; i++) {
if (!strcasecmp ("IDL:Bonobo/PersistStream:1.0", stringv._buffer[i]))
break;
}
/* got to end of list with no persist stream? */
if (i >= stringv._length)
return FALSE;
prop = bonobo_server_info_prop_find (component,
"bonobo:supported_mime_types");
if (!prop || prop->v._d != Bonobo_ACTIVATION_P_STRINGV)
return FALSE;
stringv = prop->v._u.value_stringv;
for (i = 0; i < stringv._length; i++) {
if (!strcasecmp (mime_type, stringv._buffer[i]))
return TRUE;
}
return FALSE;
}
static gboolean
mime_type_uses_evolution_component (const char *mime_type)
{
return (!strcmp (mime_type, "text/x-vcard") || !strcmp (mime_type, "text/calendar"));
}
static gboolean
mime_type_can_use_component (const char *mime_type)
{
const char **mime_types;
int i;
mime_types = mail_config_get_allowable_mime_types ();
for (i = 0; mime_types[i]; i++) {
if (!strcmp (mime_types[i], mime_type))
return TRUE;
}
return FALSE;
}
/**
* mail_lookup_handler:
* @mime_type: a MIME type
*
* Looks up the MIME type in its own tables and GNOME-VFS's and returns
* a MailMimeHandler structure detailing the component, application,
* and built-in handlers (if any) for that MIME type. (If the component
* is non-%NULL, the built-in handler will always be handle_via_bonobo().)
* The MailMimeHandler's @generic field is set if the match was for the
* MIME supertype rather than the exact type.
*
* Return value: a MailMimeHandler (which should not be freed), or %NULL
* if no handlers are available.
**/
MailMimeHandler *
mail_lookup_handler (const char *mime_type)
{
MailMimeHandler *handler;
char *mime_type_main;
const char *p;
GList *components, *iter;
if (mime_handler_table == NULL)
setup_mime_tables ();
/* See if we've already found it. */
handler = g_hash_table_lookup (mime_handler_table, mime_type);
if (handler)
return handler;
/* Special case MIME type: application/octet-stream
* The point of this type is that there isn't a handler.
*/
if (strcmp (mime_type, "application/octet-stream") == 0)
return NULL;
/* No. Create a new one and look up application and full type
* handler. If we find a builtin, create the handler and
* register it.
*/
handler = g_new0 (MailMimeHandler, 1);
handler->applications =
gnome_vfs_mime_get_short_list_applications (mime_type);
handler->builtin =
g_hash_table_lookup (mime_function_table, mime_type);
if (handler->builtin) {
handler->generic = FALSE;
handler->is_bonobo = FALSE;
goto reg;
}
/* only allow using a bonobo component if it is an evo-component or the user has
* specified that we can use a bonobo-component by setting the gconf key */
if (mime_type_uses_evolution_component (mime_type) || mime_type_can_use_component (mime_type)) {
/* Try for the first matching component. (we don't use get_short_list_comps
* as that will return NULL if the oaf files don't have the short_list properties
* defined). */
components = gnome_vfs_mime_get_all_components (mime_type);
for (iter = components; iter; iter = iter->next) {
if (component_supports (iter->data, mime_type)) {
handler->generic = FALSE;
handler->is_bonobo = TRUE;
handler->builtin = handle_via_bonobo;
handler->component = Bonobo_ServerInfo_duplicate (iter->data);
gnome_vfs_mime_component_list_free (components);
goto reg;
}
}
gnome_vfs_mime_component_list_free (components);
}
/* Try for a generic builtin match. */
p = strchr (mime_type, '/');
if (p == NULL)
p = mime_type + strlen (mime_type);
mime_type_main = g_alloca ((p - mime_type) + 3);
memcpy (mime_type_main, mime_type, p - mime_type);
memcpy (mime_type_main + (p - mime_type), "/*", 3);
handler->builtin = g_hash_table_lookup (mime_function_table,
mime_type_main);
if (handler->builtin) {
handler->generic = TRUE;
handler->is_bonobo = FALSE;
if (handler->component) {
CORBA_free (handler->component);
handler->component = NULL;
}
goto reg;
}
/* Try for a generic component match. */
if (handler->component) {
handler->generic = TRUE;
handler->is_bonobo = TRUE;
handler->builtin = handle_via_bonobo;
goto reg;
}
/* If we at least got an application list, use that. */
if (handler->applications) {
handler->generic = TRUE;
handler->is_bonobo = FALSE;
goto reg;
}
/* Nada. */
g_free (handler);
return NULL;
reg:
g_hash_table_insert (mime_handler_table, g_strdup (mime_type), handler);
return handler;
}
/* An "anonymous" MIME part is one that we shouldn't call attention
* to the existence of, but simply display.
*/
static gboolean
is_anonymous (CamelMimePart *part, const char *mime_type)
{
/* FIXME: should use CamelContentType stuff */
if (!strncasecmp (mime_type, "multipart/", 10) ||
!strncasecmp (mime_type, "message/", 8))
return TRUE;
if (!strncasecmp (mime_type, "text/", 5) &&
!camel_mime_part_get_filename (part))
return TRUE;
return FALSE;
}
/**
* mail_part_is_inline:
* @part: a CamelMimePart
*
* Return value: whether or not the part should/will be displayed inline.
**/
gboolean
mail_part_is_inline (CamelMimePart *part)
{
const char *disposition;
CamelContentType *content_type;
gboolean anon;
char *type;
/* If it has an explicit disposition, return that. */
disposition = camel_mime_part_get_disposition (part);
if (disposition)
return strcasecmp (disposition, "inline") == 0;
/* Certain types should default to inline. FIXME: this should
* be customizable.
*/
content_type = camel_mime_part_get_content_type (part);
if (!header_content_type_is (content_type, "message", "*"))
return TRUE;
/* Otherwise, display it inline if it's "anonymous", and
* as an attachment otherwise.
*/
type = header_content_type_simple (content_type);
anon = is_anonymous (part, type);
g_free (type);
return anon;
}
enum inline_states {
I_VALID = (1 << 0),
I_ACTUALLY = (1 << 1),
I_DISPLAYED = (1 << 2)
};
static int
get_inline_flags (CamelMimePart *part, MailDisplay *md)
{
GHashTable *asht;
int val;
/* check if we already know. */
asht = g_datalist_get_data (md->data, "attachment_states");
val = GPOINTER_TO_INT (g_hash_table_lookup (asht, part));
if (val)
return val;
/* ok, we don't know. Figure it out. */
if (mail_part_is_inline (part))
val = (I_VALID | I_ACTUALLY | I_DISPLAYED);
else
val = (I_VALID);
g_hash_table_insert (asht, part, GINT_TO_POINTER (val));
return val;
}
gboolean
mail_part_is_displayed_inline (CamelMimePart *part, MailDisplay *md)
{
return (gboolean) (get_inline_flags (part, md) & I_DISPLAYED);
}
void
mail_part_toggle_displayed (CamelMimePart *part, MailDisplay *md)
{
GHashTable *asht = g_datalist_get_data (md->data, "attachment_states");
gpointer ostate, opart;
int state;
if (g_hash_table_lookup_extended (asht, part, &opart, &ostate)) {
g_hash_table_remove (asht, part);
state = GPOINTER_TO_INT (ostate);
if (state & I_DISPLAYED)
state &= ~I_DISPLAYED;
else
state |= I_DISPLAYED;
} else {
state = I_VALID | I_DISPLAYED;
}
g_hash_table_insert (asht, part, GINT_TO_POINTER (state));
}
static void
mail_part_set_default_displayed_inline (CamelMimePart *part, MailDisplay *md,
gboolean displayed)
{
GHashTable *asht = g_datalist_get_data (md->data, "attachment_states");
int state;
if (g_hash_table_lookup (asht, part))
return;
state = I_VALID | (displayed ? I_DISPLAYED : 0);
g_hash_table_insert (asht, part, GINT_TO_POINTER (state));
}
static void
attachment_header (CamelMimePart *part, const char *mime_type, MailDisplay *md,
MailDisplayStream *stream)
{
char *htmlinfo;
const char *info;
/* Start the table, create the pop-up object. */
camel_stream_write_string ((CamelStream *) stream, "<table cellspacing=0 cellpadding=0><tr><td>"
"<table width=10 cellspacing=0 cellpadding=0>"
"<tr><td></td></tr></table></td>");
if (!md->printing) {
camel_stream_printf ((CamelStream *) stream, "<td><object classid=\"popup:%s\""
"type=\"%s\"></object></td>", get_cid (part, md), mime_type);
}
camel_stream_write_string ((CamelStream *) stream, "<td><table width=3 cellspacing=0 cellpadding=0>"
"<tr><td></td></tr></table></td><td><font size=-1>");
/* Write the MIME type */
info = gnome_vfs_mime_get_description (mime_type);
htmlinfo = camel_text_to_html (info ? info : mime_type, 0, 0);
camel_stream_printf ((CamelStream *) stream, _("%s attachment"), htmlinfo);
g_free (htmlinfo);
/* Write the name, if we have it. */
info = camel_mime_part_get_filename (part);
if (info) {
htmlinfo = camel_text_to_html (info, 0, 0);
camel_stream_printf ((CamelStream *) stream, " (%s)", htmlinfo);
g_free (htmlinfo);
}
/* Write a description, if we have one. */
info = camel_mime_part_get_description (part);
if (info) {
htmlinfo = camel_text_to_html (info, md->printing ? 0 : CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS, 0);
camel_stream_printf ((CamelStream *) stream, ", \"%s\"", htmlinfo);
g_free (htmlinfo);
}
camel_stream_write_string ((CamelStream *) stream, "</font></td></tr><tr><td height=10>"
"<table cellspacing=0 cellpadding=0><tr><td height=10>"
"<a name=\"glue\"></td></tr></table></td></tr></table>\n");
}
static gboolean
format_mime_part (CamelMimePart *part, MailDisplay *md,
MailDisplayStream *stream)
{
CamelDataWrapper *wrapper;
MailMimeHandler *handler;
gboolean output;
int inline_flags;
char *mime_type;
/* Record URLs associated with this part */
get_cid (part, md);
get_location (part, md);
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
if (CAMEL_IS_MULTIPART (wrapper) &&
camel_multipart_get_number (CAMEL_MULTIPART (wrapper)) == 0) {
mail_error_printf (stream, "\n%s\n", _("Could not parse MIME message. Displaying as source."));
if (mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
handle_text_plain (part, "text/plain", md, stream);
return TRUE;
}
mime_type = camel_data_wrapper_get_mime_type (wrapper);
camel_strdown (mime_type);
handler = mail_lookup_handler (mime_type);
if (!handler) {
char *id_type;
/* Special case MIME types that we know that we can't
* display but are some kind of plain text to prevent
* evil infinite recursion.
*/
if (!strcmp (mime_type, "application/mac-binhex40")) {
handler = NULL;
} else if (!strcmp (mime_type, "application/octet-stream")) {
/* only sniff application/octet-stream parts */
id_type = mail_identify_mime_part (part, md);
if (id_type) {
g_free (mime_type);
mime_type = id_type;
handler = mail_lookup_handler (id_type);
}
}
}
inline_flags = get_inline_flags (part, md);
/* No header for anonymous inline parts. */
if (!((inline_flags & I_ACTUALLY) && is_anonymous (part, mime_type)))
attachment_header (part, mime_type, md, stream);
if (handler && handler->builtin && inline_flags & I_DISPLAYED &&
mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
output = (*handler->builtin) (part, mime_type, md, stream);
else
output = TRUE;
g_free (mime_type);
return output;
}
/* flags for write_field_to_stream */
enum {
WRITE_BOLD=1,
WRITE_NOCOLUMNS=2,
};
static void
write_field_row_begin (MailDisplayStream *stream, const char *name, int flags)
{
gboolean bold = (flags & WRITE_BOLD);
gboolean nocolumns = (flags & WRITE_NOCOLUMNS);
if (nocolumns) {
camel_stream_printf ((CamelStream *) stream, "<tr><td>%s%s:%s ",
bold ? "<b>" : "", name, bold ? "</b>" : "");
} else {
camel_stream_printf ((CamelStream *) stream,
"<tr><%s align=\"right\" valign=\"top\">%s:"
"<b> </%s><td>", bold ? "th" : "td",
name, bold ? "th" : "td");
}
}
static void
write_date (MailDisplayStream *stream, CamelMimeMessage *message, int flags)
{
const char *datestr;
datestr = camel_medium_get_header (CAMEL_MEDIUM (message), "Date");
if (datestr) {
int msg_offset;
time_t msg_date;
struct tm local;
int local_tz;
msg_date = header_decode_date(datestr, &msg_offset);
e_localtime_with_offset(msg_date, &local, &local_tz);
write_field_row_begin(stream, _("Date"), flags);
camel_stream_printf((CamelStream *)stream, "%s", datestr);
/* Convert message offset to minutes (e.g. -0400 --> -240) */
msg_offset = ((msg_offset / 100) * 60) + (msg_offset % 100);
/* Turn into offset from localtime, not UTC */
msg_offset -= local_tz / 60;
if (msg_offset) {
/* Message timezone different from local. Show both */
char buf[30];
msg_offset += (local.tm_hour * 60) + local.tm_min;
if (msg_offset >= (24 * 60) || msg_offset < 0) {
/* Timezone conversion crossed midnight. Show day */
/* translators: strftime format for local time equivalent in Date header display */
e_utf8_strftime(buf, 29, _("<I> (%a, %R %Z)</I>"), &local);
} else {
e_utf8_strftime(buf, 29, _("<I> (%R %Z)</I>"), &local);
}
/* I doubt any locales put '%' in time representation
but just in case... */
camel_stream_printf((CamelStream *)stream, "%s", buf);
}
camel_stream_printf ((CamelStream *) stream, "</td> </tr>");
}
}
static void
write_text_header (MailDisplayStream *stream, const char *name, const char *value, int flags)
{
char *encoded;
if (value && *value)
encoded = camel_text_to_html (value, CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES |
CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS, 0);
else
encoded = "";
write_field_row_begin (stream, name, flags);
camel_stream_printf ((CamelStream *) stream, "%s</td></tr>", encoded);
if (value && *value)
g_free (encoded);
}
static void
write_address (MailDisplay *md, MailDisplayStream *stream,
const CamelInternetAddress *addr, const char *field_name, int flags)
{
const char *name, *email;
int i;
if (addr == NULL || !camel_internet_address_get (addr, 0, NULL, NULL))
return;
write_field_row_begin (stream, field_name, flags);
i = 0;
while (camel_internet_address_get (addr, i, &name, &email)) {
CamelInternetAddress *subaddr;
char *addr_txt, *addr_url;
gboolean have_name = name && *name;
gboolean have_email = email && *email;
char *name_disp = NULL;
char *email_disp = NULL;
subaddr = camel_internet_address_new ();
camel_internet_address_add (subaddr, name, email);
addr_txt = camel_address_format (CAMEL_ADDRESS (subaddr));
addr_url = camel_url_encode (addr_txt, NULL);
camel_object_unref (subaddr);
if (have_name) {
name_disp = camel_text_to_html (name, 0, 0);
}
if (have_email) {
email_disp = camel_text_to_html (email, 0, 0);
}
if (i)
camel_stream_write_string ((CamelStream *) stream, ", ");
if (have_email || have_name) {
if (!have_email)
email_disp = g_strdup ("???");
if (have_name) {
if (md->printing) {
camel_stream_printf ((CamelStream *) stream,
"%s <%s>", name_disp, email_disp);
} else {
camel_stream_printf ((CamelStream *) stream,
"%s <<a href=\"mailto:%s\">%s</a>>",
name_disp, addr_url, email_disp);
}
} else {
if (md->printing) {
camel_stream_write_string ((CamelStream *) stream, email_disp);
} else {
camel_stream_printf ((CamelStream *) stream,
"<a href=\"mailto:%s\">%s</a>",
addr_url, email_disp);
}
}
} else {
camel_stream_printf ((CamelStream *) stream, "<i>%s</i>", _("Bad Address"));
}
g_free (name_disp);
g_free (email_disp);
g_free (addr_txt);
g_free (addr_url);
i++;
}
camel_stream_write_string ((CamelStream *) stream, "</td></tr>");
}
/* order of these must match write_header code */
static char *default_headers[] = {
"From", "Reply-To", "To", "Cc", "Bcc", "Subject", "Date",
};
/* return index of header in default_headers array */
static int
default_header_index (const char *name)
{
int i;
for (i = 0; i < sizeof (default_headers) / sizeof (default_headers[0]); i++)
if (!strcasecmp (name, default_headers[i]))
return i;
return -1;
}
/* index is index of header in default_headers array */
static void
write_default_header (CamelMimeMessage *message, MailDisplay *md,
MailDisplayStream *stream,
int index, int flags)
{
switch (index) {
case 0:
write_address (md, stream,
camel_mime_message_get_from (message), _("From"), flags | WRITE_BOLD);
break;
case 1:
write_address (md, stream,
camel_mime_message_get_reply_to (message), _("Reply-To"), flags | WRITE_BOLD);
break;
case 2:
write_address (md, stream,
camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_TO),
_("To"), flags | WRITE_BOLD);
break;
case 3:
write_address (md, stream,
camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_CC),
_("Cc"), flags | WRITE_BOLD);
break;
case 4:
write_address (md, stream,
camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_BCC),
_("Bcc"), flags | WRITE_BOLD);
break;
case 5:
write_text_header (stream, _("Subject"), camel_mime_message_get_subject (message),
flags | WRITE_BOLD);
break;
case 6:
write_date (stream, message, flags | WRITE_BOLD);
break;
default:
g_assert_not_reached ();
}
}
static gboolean
write_xmailer_header (CamelMimeMessage *message, MailDisplay *md,
MailDisplayStream *stream, int xmask)
{
const char *xmailer, *evolution;
xmailer = camel_medium_get_header (CAMEL_MEDIUM (message), "X-Mailer");
if (!xmailer) {
xmailer = camel_medium_get_header (CAMEL_MEDIUM (message), "User-Agent");
if (!xmailer)
return FALSE;
}
while (isspace ((unsigned char)*xmailer))
xmailer++;
evolution = strstr (xmailer, "Evolution");
if ((xmask & MAIL_CONFIG_XMAILER_OTHER) ||
(evolution && (xmask & MAIL_CONFIG_XMAILER_EVO)))
write_text_header (stream, _("Mailer"), xmailer, WRITE_BOLD);
return evolution != NULL && (xmask & MAIL_CONFIG_XMAILER_RUPERT_APPROVED);
}
#define COLOR_IS_LIGHT(r, g, b) ((r + g + b) > (128 * 3))
static void
write_headers (MailDisplayStream *stream, MailDisplay *md, CamelMimeMessage *message)
{
gboolean full = (md->display_style == MAIL_CONFIG_DISPLAY_FULL_HEADERS);
char bgcolor[7], fontcolor[7];
GtkStyle *style = NULL;
gboolean evo_icon = FALSE;
GConfClient *gconf;
int xmask, i;
gconf = mail_config_get_gconf_client ();
xmask = gconf_client_get_int (gconf, "/apps/evolution/mail/display/xmailer_mask", NULL);
/* My favorite thing to do... muck around with colors so we respect people's stupid themes.
However, we only do this if we are rendering to the screen -- we ignore the theme
when we are printing. */
style = gtk_widget_get_style (GTK_WIDGET (md->html));
if (style && !md->printing) {
int state = GTK_WIDGET_STATE (GTK_WIDGET (md->html));
gushort r, g, b;
r = style->base[state].red / 256;
g = style->base[state].green / 256;
b = style->base[state].blue / 256;
if (COLOR_IS_LIGHT (r, g, b)) {
r *= 0.92;
g *= 0.92;
b *= 0.92;
} else {
r = 255 - (0.92 * (255 - r));
g = 255 - (0.92 * (255 - g));
b = 255 - (0.92 * (255 - b));
}
sprintf (bgcolor, "%.2X%.2X%.2X", r, g, b);
r = style->text[state].red / 256;
g = style->text[state].green / 256;
b = style->text[state].blue / 256;
sprintf (fontcolor, "%.2X%.2X%.2X", r, g, b);
} else {
strcpy (bgcolor, "EEEEEE");
strcpy (fontcolor, "000000");
}
camel_stream_write_string ((CamelStream *) stream,
"<table width=\"100%\" cellpadding=0 cellspacing=0>");
/* Top margin */
camel_stream_write_string ((CamelStream *) stream, "<tr><td colspan=3 height=10>"
"<table cellpadding=0 cellspacing=0><tr><td height=10>"
"<a name=\"glue\"></td></tr></table></td></tr>");
/* Left margin */
camel_stream_write_string ((CamelStream *) stream, "<tr><td><table width=10 "
"cellpadding=0 cellspacing=0><tr><td></td></tr></table></td>");
/* Black border */
camel_stream_write_string ((CamelStream *) stream, "<td width=\"100%\"><table bgcolor=\"#000000\" "
"width=\"100%\" cellspacing=0 cellpadding=1>");
/* Main header box */
camel_stream_printf ((CamelStream *) stream, "<tr><td><table bgcolor=\"#%s\" width=\"100%%\" "
"cellpadding=0 cellspacing=0>"
/* Internal header table */
"<tr valign=top><td><table><font color=\"#%s\">\n",
bgcolor, fontcolor);
if (full) {
struct _header_raw *header;
const char *charset;
CamelContentType *ct;
char *value;
ct = camel_mime_part_get_content_type (CAMEL_MIME_PART (message));
charset = header_content_type_param (ct, "charset");
charset = e_iconv_charset_name (charset);
header = CAMEL_MIME_PART (message)->headers;
while (header) {
i = default_header_index (header->name);
if (i == -1) {
value = header_decode_string (header->value, charset);
write_text_header (stream, header->name, value, WRITE_NOCOLUMNS);
g_free (value);
} else
write_default_header (message, md, stream, i, WRITE_NOCOLUMNS);
header = header->next;
}
} else {
for (i = 0; i < sizeof (default_headers) / sizeof (default_headers[0]); i++)
write_default_header (message, md, stream, i, 0);
if (xmask != MAIL_CONFIG_XMAILER_NONE)
evo_icon = write_xmailer_header (message, md, stream, xmask);
}
/* Close off the internal header table */
camel_stream_write_string ((CamelStream *) stream, "</font></table></td>");
if (!md->printing && evo_icon) {
camel_stream_printf ((CamelStream *) stream, "<td align=right><table><tr><td width=16>"
"<img src=\"%s\"></td></tr></table></td>",
mail_display_get_url_for_icon (md, EVOLUTION_ICONSDIR "/monkey-16.png"));
}
camel_stream_write_string ((CamelStream *) stream,
/* Main header box */
"</tr></table>"
/* Black border */
"</td></tr></table></td>"
/* Right margin */
"<td><table width=10 cellpadding=0 cellspacing=0>"
"<tr><td></td></tr></table></td>"
"</tr></table>\n");
}
static void
load_offline_content (MailDisplay *md, gpointer data)
{
CamelDataWrapper *wrapper = data;
CamelStream *stream;
stream = camel_stream_null_new ();
camel_data_wrapper_write_to_stream (wrapper, stream);
camel_object_unref (stream);
camel_object_unref (wrapper);
}
gboolean
mail_content_loaded (CamelDataWrapper *wrapper, MailDisplay *md, gboolean redisplay, const char *url,
GtkHTML *html, GtkHTMLStream *stream)
{
if (!camel_data_wrapper_is_offline (wrapper))
return TRUE;
camel_object_ref (wrapper);
if (redisplay) {
mail_display_redisplay_when_loaded (md, wrapper, load_offline_content,
html, wrapper);
} else {
mail_display_stream_write_when_loaded (md, wrapper, url, load_offline_content,
html, stream, wrapper);
}
return FALSE;
}
ssize_t
mail_format_data_wrapper_write_to_stream (CamelDataWrapper *wrapper, gboolean decode, MailDisplay *mail_display, CamelStream *stream)
{
CamelStreamFilter *filter_stream;
CamelMimeFilterCharset *filter;
CamelContentType *content_type;
GConfClient *gconf;
ssize_t nwritten;
char *charset;
gconf = mail_config_get_gconf_client ();
content_type = camel_data_wrapper_get_mime_type_field (wrapper);
/* find out the charset the user wants to override to */
if (mail_display && mail_display->charset) {
/* user override charset */
charset = g_strdup (mail_display->charset);
} else if (content_type && (charset = (char *) header_content_type_param (content_type, "charset"))) {
/* try to use the charset declared in the Content-Type header */
if (!strncasecmp (charset, "iso-8859-", 9)) {
/* 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... */
CamelMimeFilterWindows *windows;
CamelStream *null;
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);
if (decode)
camel_data_wrapper_decode_to_stream (wrapper, (CamelStream *) filter_stream);
else
camel_data_wrapper_write_to_stream (wrapper, (CamelStream *) filter_stream);
camel_stream_flush ((CamelStream *) filter_stream);
camel_object_unref (filter_stream);
charset = g_strdup (camel_mime_filter_windows_real_charset (windows));
camel_object_unref (windows);
} else {
charset = g_strdup (charset);
}
} else {
/* default to user's locale charset? */
charset = gconf_client_get_string (gconf, "/apps/evolution/mail/format/charset", NULL);
}
filter_stream = camel_stream_filter_new_with_stream (stream);
if ((filter = camel_mime_filter_charset_new_convert (charset, "UTF-8"))) {
camel_stream_filter_add (filter_stream, (CamelMimeFilter *) filter);
camel_object_unref (filter);
}
g_free (charset);
if (decode)
nwritten = camel_data_wrapper_decode_to_stream (wrapper, (CamelStream *) filter_stream);
else
nwritten = camel_data_wrapper_write_to_stream (wrapper, (CamelStream *) filter_stream);
camel_stream_flush ((CamelStream *) filter_stream);
camel_object_unref (filter_stream);
return nwritten;
}
/* Return the contents of a data wrapper, or %NULL if it contains only
* whitespace.
*/
GByteArray *
mail_format_get_data_wrapper_text (CamelDataWrapper *wrapper, MailDisplay *mail_display)
{
CamelStream *memstream;
GByteArray *ba;
char *text, *end;
memstream = camel_stream_mem_new ();
ba = g_byte_array_new ();
camel_stream_mem_set_byte_array (CAMEL_STREAM_MEM (memstream), ba);
mail_format_data_wrapper_write_to_stream (wrapper, TRUE, mail_display, memstream);
camel_object_unref (memstream);
for (text = ba->data, end = text + ba->len; text < end; text++) {
if (!isspace ((unsigned char) *text))
break;
}
if (text >= end) {
g_byte_array_free (ba, TRUE);
return NULL;
}
return ba;
}
static void
write_hr (MailDisplayStream *stream)
{
camel_stream_write_string ((CamelStream *) stream, STANDARD_ISSUE_TABLE_OPEN
"<tr><td width=\"100%\"><hr noshadow size=1>"
"</td></tr></table>\n");
}
/*----------------------------------------------------------------------*
* Mime handling functions
*----------------------------------------------------------------------*/
static gboolean
handle_text_plain (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelStreamFilter *filtered_stream;
CamelMimeFilter *html_filter;
CamelDataWrapper *wrapper;
CamelContentType *type;
const char *format;
GConfClient *gconf;
guint32 flags, rgb = 0;
GdkColor colour;
char *buf;
gconf = mail_config_get_gconf_client ();
flags = CAMEL_MIME_FILTER_TOHTML_CONVERT_NL | CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES;
if (!md->printing) {
flags |= CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS | CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES;
if (gconf_client_get_bool (gconf, "/apps/evolution/mail/display/mark_citations", NULL)) {
flags |= CAMEL_MIME_FILTER_TOHTML_MARK_CITATION;
buf = gconf_client_get_string (gconf, "/apps/evolution/mail/display/citation_colour", NULL);
gdk_color_parse (buf ? buf : "#737373", &colour);
g_free (buf);
rgb = ((colour.red & 0xff00) << 8) | (colour.green & 0xff00) | ((colour.blue & 0xff00) >> 8);
}
}
/* Check for RFC 2646 flowed text. */
type = camel_mime_part_get_content_type (part);
if (header_content_type_is (type, "text", "plain")) {
format = header_content_type_param (type, "format");
if (format && !strcasecmp (format, "flowed"))
flags |= CAMEL_MIME_FILTER_TOHTML_FORMAT_FLOWED;
}
html_filter = camel_mime_filter_tohtml_new (flags, rgb);
filtered_stream = camel_stream_filter_new_with_stream ((CamelStream *) stream);
camel_stream_filter_add (filtered_stream, html_filter);
camel_object_unref (html_filter);
camel_stream_write_string ((CamelStream *) stream, STANDARD_ISSUE_TABLE_OPEN "<tr><td><tt>\n");
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
mail_format_data_wrapper_write_to_stream (wrapper, TRUE, md, (CamelStream *) filtered_stream);
camel_stream_write_string ((CamelStream *) stream, "</tt></td></tr></table>\n");
camel_object_unref (filtered_stream);
return TRUE;
}
/* text/enriched (RFC 1896) or text/richtext (included in RFC 1341) */
static gboolean
handle_text_enriched (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelStreamFilter *filtered_stream;
CamelMimeFilter *enriched;
CamelDataWrapper *wrapper;
guint32 flags = 0;
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
if (!strcasecmp (mime_type, "text/richtext")) {
flags = CAMEL_MIME_FILTER_ENRICHED_IS_RICHTEXT;
camel_stream_write_string ((CamelStream *) stream, "\n<!-- text/richtext -->\n");
} else {
camel_stream_write_string ((CamelStream *) stream, "\n<!-- text/enriched -->\n");
}
enriched = camel_mime_filter_enriched_new (flags);
filtered_stream = camel_stream_filter_new_with_stream ((CamelStream *) stream);
camel_stream_filter_add (filtered_stream, enriched);
camel_object_unref (enriched);
camel_stream_write_string ((CamelStream *) stream, STANDARD_ISSUE_TABLE_OPEN "<tr><td><tt>\n");
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
mail_format_data_wrapper_write_to_stream (wrapper, TRUE, md, (CamelStream *) filtered_stream);
camel_stream_write_string ((CamelStream *) stream, "</tt></td></tr></table>\n");
camel_object_unref (filtered_stream);
return TRUE;
}
static gboolean
handle_text_html (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
const char *location, *base;
camel_stream_write_string ((CamelStream *) stream, "\n<!-- text/html -->\n");
if ((base = camel_medium_get_header (CAMEL_MEDIUM (part), "Content-Base"))) {
char *base_url;
size_t len;
len = strlen (base);
if (*base == '"' && *(base + len - 1) == '"') {
len -= 2;
base_url = g_alloca (len + 1);
memcpy (base_url, base + 1, len);
base_url[len] = '\0';
base = base_url;
}
gtk_html_set_base (md->html, base);
}
location = get_location (part, md);
if (!location)
location = get_cid (part, md);
camel_stream_printf ((CamelStream *) stream, "<iframe src=\"%s\" frameborder=0 "
"scrolling=no>could not get %s</iframe>", location, location);
return TRUE;
}
static gboolean
handle_image (CamelMimePart *part, const char *mime_type, MailDisplay *md, MailDisplayStream *stream)
{
camel_stream_printf ((CamelStream *) stream, "<img hspace=10 vspace=10 src=\"%s\">",
get_cid (part, md));
return TRUE;
}
static gboolean
handle_multipart_mixed (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *mp;
int i, nparts;
gboolean output = FALSE;
if (!CAMEL_IS_MULTIPART (wrapper)) {
mail_error_printf (stream, "\n%s\n", _("Could not parse MIME message. Displaying as source."));
if (mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
handle_text_plain (part, "text/plain", md, stream);
return TRUE;
}
mp = CAMEL_MULTIPART (wrapper);
nparts = camel_multipart_get_number (mp);
for (i = 0; i < nparts; i++) {
if (i != 0 && output)
write_hr (stream);
part = camel_multipart_get_part (mp, i);
output = format_mime_part (part, md, stream);
}
return TRUE;
}
static gboolean
handle_multipart_encrypted (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelMultipartEncrypted *mpe;
CamelMimePart *mime_part;
CamelCipherContext *cipher;
CamelDataWrapper *wrapper;
const char *protocol;
CamelException ex;
gboolean handled;
/* Currently we only handle RFC2015-style PGP encryption. */
protocol = header_content_type_param (((CamelDataWrapper *) part)->mime_type, "protocol");
if (!protocol || strcmp (protocol, "application/pgp-encrypted") != 0)
return handle_multipart_mixed (part, mime_type, md, stream);
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
mpe = CAMEL_MULTIPART_ENCRYPTED (wrapper);
camel_exception_init (&ex);
cipher = camel_gpg_context_new (session);
mime_part = camel_multipart_encrypted_decrypt (mpe, cipher, &ex);
camel_object_unref (cipher);
if (camel_exception_is_set (&ex)) {
mail_error_printf (stream, "\n%s\n", camel_exception_get_description (&ex));
camel_exception_clear (&ex);
return TRUE;
}
handled = format_mime_part (mime_part, md, stream);
camel_object_unref (mime_part);
return handled;
}
static gboolean
handle_multipart_signed (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelMimePart *subpart;
CamelDataWrapper *wrapper;
CamelMultipartSigned *mps;
gboolean output = FALSE;
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
if (!CAMEL_IS_MULTIPART_SIGNED (wrapper)) {
mail_error_printf (stream, "\n%s\n", _("Could not parse MIME message. Displaying as source."));
if (mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
handle_text_plain (part, "text/plain", md, stream);
return TRUE;
}
mps = CAMEL_MULTIPART_SIGNED (wrapper);
/* if subpart & signature is null, what do we do? just write it out raw?
multipart_signed will, if it cannot parse properly, put everything in the first part
this includes: more or less than 2 parts */
/* output the content */
subpart = camel_multipart_get_part ((CamelMultipart *) mps, CAMEL_MULTIPART_SIGNED_CONTENT);
if (subpart == NULL)
return FALSE;
output = format_mime_part (subpart, md, stream);
/* now handle the signature */
subpart = camel_multipart_get_part ((CamelMultipart *) mps, CAMEL_MULTIPART_SIGNED_SIGNATURE);
if (subpart == NULL)
return FALSE;
mail_part_set_default_displayed_inline (subpart, md, FALSE);
if (!mail_part_is_displayed_inline (subpart, md) && !md->printing) {
char *url;
/* Write out the click-for-info object */
url = g_strdup_printf ("signature:%p/%lu", subpart,
(unsigned long)time (NULL));
camel_stream_printf ((CamelStream *) stream,
"<br><table cellspacing=0 cellpadding=0>"
"<tr><td><table width=10 cellspacing=0 cellpadding=0>"
"<tr><td></td></tr></table></td>"
"<td><object classid=\"%s\"></object></td>"
"<td><table width=3 cellspacing=0 cellpadding=0>"
"<tr><td></td></tr></table></td>"
"<td><font size=-1>", url);
mail_display_add_url (md, "part_urls", url, subpart);
camel_stream_write_string ((CamelStream *) stream,
_("This message is digitally signed. "
"Click the lock icon for more information."));
camel_stream_write_string ((CamelStream *) stream, "</font></td></tr><tr><td height=10>"
"<table cellspacing=0 cellpadding=0><tr>"
"<td height=10><a name=\"glue\"></td></tr>"
"</table></td></tr></table>\n");
} else {
CamelCipherValidity *valid = NULL;
CamelException ex;
const char *message = NULL;
gboolean good = FALSE;
CamelCipherContext *cipher;
/* Write out the verification results */
/* TODO: use the right context for the right message ... */
camel_exception_init (&ex);
cipher = camel_gpg_context_new (session);
if (cipher) {
valid = camel_multipart_signed_verify (mps, cipher, &ex);
camel_object_unref (cipher);
if (valid) {
good = camel_cipher_validity_get_valid (valid);
message = camel_cipher_validity_get_description (valid);
} else {
message = camel_exception_get_description (&ex);
}
} else {
message = _("Could not create a PGP verfication context");
}
if (good) {
camel_stream_printf ((CamelStream *) stream, "<table><tr valign=top><td>"
"<img src=\"%s\"></td><td>%s<br><br>",
mail_display_get_url_for_icon (md, EVOLUTION_ICONSDIR
"/pgp-signature-ok.png"),
_("This message is digitally signed and "
"has been found to be authentic."));
} else {
camel_stream_printf ((CamelStream *) stream, "<table><tr valign=top><td>"
"<img src=\"%s\"></td><td>%s<br><br>",
mail_display_get_url_for_icon (md, EVOLUTION_ICONSDIR
"/pgp-signature-bad.png"),
_("This message is digitally signed but can "
"not be proven to be authentic."));
}
if (message) {
camel_stream_printf ((CamelStream *) stream, "<font size=-1%s>", good ||
md->printing ? "" : " color=red");
mail_text_write (stream, md, part, 0, md->printing, message);
camel_stream_write_string ((CamelStream *) stream, "</font>");
}
camel_stream_write_string ((CamelStream *) stream, "</td></tr></table>");
camel_exception_clear (&ex);
camel_cipher_validity_free (valid);
}
return TRUE;
}
/* As seen in RFC 2387! */
static gboolean
handle_multipart_related (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelDataWrapper *wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *mp;
CamelMimePart *body_part, *display_part = NULL;
CamelContentType *content_type;
const char *location, *start;
int i, nparts;
GHashTable *related_save;
int ret;
if (!CAMEL_IS_MULTIPART (wrapper)) {
mail_error_printf (stream, "\n%s\n", _("Could not parse MIME message. Displaying as source."));
if (mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
handle_text_plain (part, "text/plain", md, stream);
return TRUE;
}
mp = CAMEL_MULTIPART (wrapper);
nparts = camel_multipart_get_number (mp);
content_type = camel_mime_part_get_content_type (part);
start = header_content_type_param (content_type, "start");
if (start) {
int len;
/* The "start" parameter includes <>s, which Content-Id
* does not.
*/
len = strlen (start) - 2;
for (i = 0; i < nparts; i++) {
const char *cid;
body_part = camel_multipart_get_part (mp, i);
cid = camel_mime_part_get_content_id (body_part);
if (cid && !strncmp (cid, start + 1, len) && strlen (cid) == len) {
display_part = body_part;
break;
}
}
} else {
/* No start parameter, so it defaults to the first part. */
display_part = camel_multipart_get_part (mp, 0);
}
if (!display_part) {
/* Oops. Hrmph. */
return handle_multipart_mixed (part, mime_type, md, stream);
}
/* setup a 'stack' of related parts */
related_save = md->related;
md->related = g_hash_table_new(NULL, NULL);
location = camel_mime_part_get_content_location (part);
if (location)
mail_display_push_content_location (md, location);
/* Record the Content-ID/Content-Location of any non-displayed parts. */
for (i = 0; i < nparts; i++) {
body_part = camel_multipart_get_part (mp, i);
if (body_part == display_part)
continue;
get_cid (body_part, md);
get_location (body_part, md);
g_hash_table_insert (md->related, body_part, body_part);
}
/* Now, display the displayed part. */
ret = format_mime_part (display_part, md, stream);
/* FIXME: flush html stream via gtkhtml_stream_flush which doens't exist yet ... */
while (gtk_events_pending ())
gtk_main_iteration ();
/* Now check for related parts which didn't display, display them as attachments */
for (i = 0; i < nparts; i++) {
body_part = camel_multipart_get_part (mp, i);
if (body_part == display_part)
continue;
if (g_hash_table_lookup (md->related, body_part)) {
if (ret)
write_hr (stream);
ret |= format_mime_part (body_part, md, stream);
}
}
g_hash_table_destroy (md->related);
md->related = related_save;
if (location)
mail_display_pop_content_location (md);
return ret;
}
/* RFC 2046 says "display the last part that you are able to display". */
static CamelMimePart *
find_preferred_alternative (CamelMultipart *multipart, gboolean want_plain)
{
int i, nparts;
CamelMimePart *preferred_part = NULL;
MailMimeHandler *handler;
nparts = camel_multipart_get_number (multipart);
for (i = 0; i < nparts; i++) {
CamelMimePart *part = camel_multipart_get_part (multipart, i);
CamelContentType *type = camel_mime_part_get_content_type (part);
char *mime_type = header_content_type_simple (type);
camel_strdown (mime_type);
if (want_plain && !strcmp (mime_type, "text/plain"))
return part;
handler = mail_lookup_handler (mime_type);
if (handler && (!preferred_part || !handler->generic))
preferred_part = part;
g_free (mime_type);
}
return preferred_part;
}
static gboolean
handle_multipart_alternative (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *multipart;
CamelMimePart *mime_part;
if (!CAMEL_IS_MULTIPART (wrapper)) {
mail_error_printf (stream, "\n%s\n", _("Could not parse MIME message. Displaying as source."));
if (mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
handle_text_plain (part, "text/plain", md, stream);
return TRUE;
}
multipart = CAMEL_MULTIPART (wrapper);
mime_part = find_preferred_alternative (multipart, FALSE);
if (mime_part)
return format_mime_part (mime_part, md, stream);
else
return handle_multipart_mixed (part, mime_type, md, stream);
}
/* RFC 1740 */
static gboolean
handle_multipart_appledouble (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *multipart;
if (!CAMEL_IS_MULTIPART (wrapper)) {
mail_error_printf (stream, "\n%s\n", _("Could not parse MIME message. Displaying as source."));
if (mail_content_loaded (wrapper, md, TRUE, NULL, md->html, NULL))
handle_text_plain (part, "text/plain", md, stream);
return TRUE;
}
multipart = CAMEL_MULTIPART (wrapper);
/* The first part is application/applefile and is not useful
* to us. The second part _may_ be displayable data. Most
* likely it's application/octet-stream though.
*/
part = camel_multipart_get_part (multipart, 1);
return format_mime_part (part, md, stream);
}
static gboolean
handle_message_rfc822 (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
g_return_val_if_fail (CAMEL_IS_MIME_MESSAGE (wrapper), FALSE);
camel_stream_write_string ((CamelStream *) stream, "<blockquote>");
mail_format_mime_message (CAMEL_MIME_MESSAGE (wrapper), md, stream);
camel_stream_write_string ((CamelStream *) stream, "</blockquote>");
return TRUE;
}
static gboolean
handle_message_external_body (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
CamelContentType *type;
const char *access_type;
char *url = NULL, *desc = NULL;
type = camel_mime_part_get_content_type (part);
access_type = header_content_type_param (type, "access-type");
if (!access_type)
goto fallback;
if (!strcasecmp (access_type, "ftp") ||
!strcasecmp (access_type, "anon-ftp")) {
const char *name, *site, *dir, *mode, *ftype;
char *path;
name = header_content_type_param (type, "name");
site = header_content_type_param (type, "site");
if (name == NULL || site == NULL)
goto fallback;
dir = header_content_type_param (type, "directory");
mode = header_content_type_param (type, "mode");
/* Generate the path. */
if (dir) {
const char *p = dir + strlen (dir);
path = g_strdup_printf ("%s%s%s%s",
*dir == '/' ? "" : "/",
dir,
*p == '/' ? "" : "/",
name);
} else {
path = g_strdup_printf ("%s%s",
*name == '/' ? "" : "/",
name);
}
if (mode && *mode == 'A')
ftype = ";type=A";
else if (mode && *mode == 'I')
ftype = ";type=I";
else
ftype = "";
url = g_strdup_printf ("ftp://%s%s%s", site, path, ftype);
g_free (path);
desc = g_strdup_printf (_("Pointer to FTP site (%s)"), url);
} else if (!g_ascii_strcasecmp (access_type, "local-file")) {
const char *name, *site;
name = header_content_type_param (type, "name");
if (name == NULL)
goto fallback;
site = header_content_type_param (type, "site");
url = g_strdup_printf ("file://%s%s", *name == '/' ? "" : "/", name);
if (site) {
desc = g_strdup_printf(_("Pointer to local file (%s) "
"valid at site \"%s\""), name, site);
} else {
desc = g_strdup_printf(_("Pointer to local file (%s)"), name);
}
} else if (!strcasecmp (access_type, "URL")) {
const char *urlparam;
char *s, *d;
/* RFC 2017 */
urlparam = header_content_type_param (type, "url");
if (urlparam == NULL)
goto fallback;
/* For obscure MIMEy reasons, the URL may be split into
* multiple words, and needs to be rejoined. (The URL
* must have any real whitespace %-encoded, so we just
* get rid of all of it.
*/
url = g_strdup (urlparam);
s = d = url;
while (*s) {
if (!isspace ((unsigned char)*s))
*d++ = *s;
s++;
}
*d = *s;
desc = g_strdup_printf (_("Pointer to remote data (%s)"), url);
}
fallback:
if (!desc) {
if (access_type)
desc = g_strdup_printf (_("Pointer to unknown external data (\"%s\" type)"), access_type);
else
desc = g_strdup (_("Malformed external-body part."));
}
#if 0 /* FIXME */
handle_mystery (part, md, url, "gnome-globe.png", desc,
url ? "open it in a browser" : NULL);
#endif
g_free (desc);
g_free (url);
return TRUE;
}
static gboolean
handle_via_bonobo (CamelMimePart *part, const char *mime_type,
MailDisplay *md, MailDisplayStream *stream)
{
if (!md->printing) {
camel_stream_printf ((CamelStream *) stream,
"<object classid=\"%s\" type=\"%s\"></object>",
get_cid (part, md), mime_type);
}
return TRUE;
}
/**
* mail_get_message_rfc822:
* @message: the message
* @want_plain: whether the caller prefers plain to html
* @cite: whether or not to cite the message text
*
* See mail_get_message_body() below for more details.
*
* Return value: an HTML string representing the text parts of @message.
**/
static char *
mail_get_message_rfc822 (CamelMimeMessage *message, gboolean want_plain, gboolean cite)
{
CamelDataWrapper *contents;
GString *retval;
const CamelInternetAddress *cia;
char *text, *citation, *buf, *html;
time_t date_val;
int offset;
contents = camel_medium_get_content_object (CAMEL_MEDIUM (message));
text = mail_get_message_body (contents, want_plain, cite);
if (!text)
text = g_strdup ("");
citation = cite ? "> " : "";
retval = g_string_new (NULL);
/* Kludge: if text starts with "<PRE>", wrap it around the
* headers too so we won't get a blank line between them for the
* <P> to <PRE> switch.
*/
if (!strncasecmp (text, "<pre>", 5))
g_string_append_printf (retval, "<PRE>");
/* create credits */
cia = camel_mime_message_get_from (message);
buf = camel_address_format (CAMEL_ADDRESS (cia));
if (buf) {
html = camel_text_to_html (buf, CAMEL_MIME_FILTER_TOHTML_CONVERT_NL, 0);
g_string_append_printf (retval, "%s<b>From:</b> %s<br>",
citation, html);
g_free (html);
g_free (buf);
}
cia = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_TO);
buf = camel_address_format (CAMEL_ADDRESS (cia));
if (buf) {
html = camel_text_to_html (buf, CAMEL_MIME_FILTER_TOHTML_CONVERT_NL, 0);
g_string_append_printf (retval, "%s<b>To:</b> %s<br>",
citation, html);
g_free (html);
g_free (buf);
}
cia = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_CC);
buf = camel_address_format (CAMEL_ADDRESS (cia));
if (buf) {
html = camel_text_to_html (buf, CAMEL_MIME_FILTER_TOHTML_CONVERT_NL, 0);
g_string_append_printf (retval, "%s<b>Cc:</b> %s<br>",
citation, html);
g_free (html);
g_free (buf);
}
buf = (char *) camel_mime_message_get_subject (message);
if (buf) {
html = camel_text_to_html (buf, CAMEL_MIME_FILTER_TOHTML_CONVERT_NL |
CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS, 0);
g_string_append_printf (retval, "%s<b>Subject:</b> %s<br>",
citation, html);
g_free (html);
}
date_val = camel_mime_message_get_date (message, &offset);
buf = header_format_date (date_val, offset);
html = camel_text_to_html (buf, CAMEL_MIME_FILTER_TOHTML_CONVERT_NL, 0);
g_string_append_printf (retval, "%s<b>Date:</b> %s<br>", citation, html);
g_free (html);
g_free (buf);
if (!strncasecmp (text, "<pre>", 5))
g_string_append_printf (retval, "%s<br>%s", citation, text + 5);
else
g_string_append_printf (retval, "%s<br>%s", citation, text);
g_free (text);
buf = retval->str;
g_string_free (retval, FALSE);
return buf;
}
/**
* mail_get_message_body:
* @data: the message or mime part content
* @want_plain: whether the caller prefers plain to html
* @cite: whether or not to cite the message text
*
* This creates an HTML string representing @data. If @want_plain is %TRUE,
* it will be an HTML string that looks like a text/plain representation
* of @data (but it will still be HTML).
*
* If @cite is %TRUE, the message will be cited as a reply, using "> "s.
*
* Return value: the HTML string, which the caller must free, or
* %NULL if @data doesn't include any data which should be forwarded or
* replied to.
**/
char *
mail_get_message_body (CamelDataWrapper *data, gboolean want_plain, gboolean cite)
{
char *subtext, *old, *div, *text = NULL;
CamelContentType *mime_type;
CamelCipherContext *cipher;
GByteArray *bytes = NULL;
CamelMimePart *subpart;
CamelMultipart *mp;
int i, nparts;
mime_type = camel_data_wrapper_get_mime_type_field (data);
/* If it is message/rfc822 or message/news, extract the
* important headers and recursively process the body.
*/
if (header_content_type_is (mime_type, "message", "rfc822") ||
header_content_type_is (mime_type, "message", "news"))
return mail_get_message_rfc822 (CAMEL_MIME_MESSAGE (data), want_plain, cite);
/* If it's a vcard or icalendar, ignore it. */
if (header_content_type_is (mime_type, "text", "x-vcard") ||
header_content_type_is (mime_type, "text", "calendar"))
return NULL;
/* Get the body data for other text/ or message/ types */
if (header_content_type_is (mime_type, "text", "*") ||
header_content_type_is (mime_type, "message", "*")) {
bytes = mail_format_get_data_wrapper_text (data, NULL);
if (bytes) {
g_byte_array_append (bytes, "", 1);
text = bytes->data;
g_byte_array_free (bytes, FALSE);
}
if (text && !header_content_type_is(mime_type, "text", "html")) {
char *html;
if (header_content_type_is(mime_type, "text", "richtext"))
html = camel_enriched_to_html(text, CAMEL_MIME_FILTER_ENRICHED_IS_RICHTEXT);
else if (header_content_type_is(mime_type, "text", "enriched"))
html = camel_enriched_to_html(text, 0);
else
html = camel_text_to_html (text, CAMEL_MIME_FILTER_TOHTML_PRE |
CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS |
(cite ? CAMEL_MIME_FILTER_TOHTML_CITE : 0), 0);
g_free(text);
text = html;
}
return text;
}
/* If it's not message and it's not text, and it's not
* multipart, we don't want to deal with it.
*/
if (!header_content_type_is (mime_type, "multipart", "*"))
return NULL;
mp = CAMEL_MULTIPART (data);
if (CAMEL_IS_MULTIPART_ENCRYPTED (mp)) {
cipher = camel_gpg_context_new (session);
subpart = camel_multipart_encrypted_decrypt (CAMEL_MULTIPART_ENCRYPTED (mp),
cipher, NULL);
if (!subpart)
return NULL;
data = camel_medium_get_content_object (CAMEL_MEDIUM (subpart));
return mail_get_message_body (data, want_plain, cite);
} else if (header_content_type_is (mime_type, "multipart", "alternative")) {
/* Pick our favorite alternative and reply to it. */
subpart = find_preferred_alternative (mp, want_plain);
if (!subpart)
return NULL;
data = camel_medium_get_content_object (CAMEL_MEDIUM (subpart));
return mail_get_message_body (data, want_plain, cite);
}
/* Otherwise, concatenate all the parts that we can. */
if (want_plain) {
if (cite)
div = "<br>\n> ----<br>\n> <br>\n";
else
div = "<br>\n----<br>\n<br>\n";
} else
div = "<br><hr><br>";
nparts = camel_multipart_get_number (mp);
for (i = 0; i < nparts; i++) {
subpart = camel_multipart_get_part (mp, i);
/* only add to the body contents if it is marked as "inline" */
if (!mail_part_is_inline (subpart))
continue;
data = camel_medium_get_content_object (CAMEL_MEDIUM (subpart));
subtext = mail_get_message_body (data, want_plain, cite);
if (!subtext)
continue;
if (text) {
old = text;
text = g_strdup_printf ("%s%s%s", old, div, subtext);
g_free (subtext);
g_free (old);
} else
text = subtext;
}
return text;
}
