/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Authors:
* Dan Winship <danw@ximian.com>
*
* Copyright 2000, 2001 Ximian, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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 Street #330, Boston, MA 02111-1307, USA.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <ctype.h> /* for isprint */
#include <string.h> /* for strstr */
#include <fcntl.h>
#include <liboaf/liboaf.h>
#include <libgnome/libgnome.h>
#include <libgnomevfs/gnome-vfs-mime-info.h>
#include <libgnomevfs/gnome-vfs-mime-handlers.h>
#include <gal/widgets/e-unicode.h>
#include <camel/camel-mime-utils.h>
#include <camel/camel-pgp-mime.h>
#include <camel/camel-stream-null.h>
#include <shell/e-setup.h>
#include <e-util/e-html-utils.h>
#include "mail.h"
#include "mail-tools.h"
#include "mail-display.h"
#include "mail-mt.h"
#include "mail-crypto.h"
static char *get_data_wrapper_text (CamelDataWrapper *data);
static char *try_inline_pgp (char *start, MailDisplay *md);
static char *try_inline_pgp_sig (char *start, MailDisplay *md);
static char *try_uudecoding (char *start, MailDisplay *md);
static char *try_inline_binhex (char *start, MailDisplay *md);
static gboolean handle_text_plain (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_text_plain_flowed (char *text,
MailDisplay *md);
static gboolean handle_text_enriched (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_text_html (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_image (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_multipart_mixed (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_multipart_related (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_multipart_alternative (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_multipart_appledouble (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_multipart_encrypted (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_multipart_signed (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_message_rfc822 (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_message_external_body (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
static gboolean handle_via_bonobo (CamelMimePart *part,
const char *mime_type,
MailDisplay *md);
/* writes the header info for a mime message into an html stream */
static void write_headers (CamelMimeMessage *message, MailDisplay *md);
/* dispatch html printing via mimetype */
static gboolean format_mime_part (CamelMimePart *part, MailDisplay *md);
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);
}
static char *
add_url (const char *kind, char *url, gpointer data, MailDisplay *md)
{
GHashTable *urls;
gpointer old_key, old_value;
urls = g_datalist_get_data (md->data, kind);
g_return_val_if_fail (urls != NULL, NULL);
if (g_hash_table_lookup_extended (urls, url, &old_key, &old_value)) {
g_free (url);
url = old_key;
}
g_hash_table_insert (urls, url, data);
return url;
}
/**
* 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)
{
GHashTable *urls;
g_return_if_fail (CAMEL_IS_MIME_MESSAGE (mime_message));
urls = g_datalist_get_data (md->data, "part_urls");
if (!urls) {
urls = g_hash_table_new (g_str_hash, g_str_equal);
g_datalist_set_data_full (md->data, "part_urls", urls,
free_part_urls);
}
urls = g_datalist_get_data (md->data, "data_urls");
if (!urls) {
urls = g_hash_table_new (g_str_hash, g_str_equal);
g_datalist_set_data_full (md->data, "data_urls", urls,
free_data_urls);
}
write_headers (mime_message, md);
format_mime_part (CAMEL_MIME_PART (mime_message), md);
}
/**
* 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)
{
char *text, *html;
g_return_if_fail (CAMEL_IS_MIME_MESSAGE (mime_message));
text = get_data_wrapper_text (CAMEL_DATA_WRAPPER (mime_message));
html = e_text_to_html (text, E_TEXT_TO_HTML_CONVERT_NL | E_TEXT_TO_HTML_CONVERT_SPACES);
gtk_html_write (md->html, md->stream, "<tt>", 4);
gtk_html_write (md->html, md->stream, html, strlen (html));
gtk_html_write (md->html, md->stream, "</tt>", 5);
g_free (html);
g_free (text);
}
static const char *
get_cid (CamelMimePart *part, MailDisplay *md)
{
char *cid;
static int fake_cid_counter = 0;
/* 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 add_url ("part_urls", cid, part, md);
}
static const char *
get_location (CamelMimePart *part, MailDisplay *md)
{
const char *loc;
/* FIXME: relative URLs */
loc = camel_mime_part_get_content_location (part);
if (!loc)
return NULL;
return add_url ("part_urls", g_strdup (loc), part, md);
}
static const char *
get_url_for_icon (const char *icon_name, MailDisplay *md)
{
char *icon_path, buf[1024], *url;
int fd, nread;
GByteArray *ba;
/* FIXME: cache */
if (*icon_name == '/')
icon_path = g_strdup (icon_name);
else {
icon_path = gnome_pixmap_file (icon_name);
if (!icon_path)
return "file:///dev/null";
}
fd = open (icon_path, O_RDONLY);
g_free (icon_path);
if (fd == -1)
return "file:///dev/null";
ba = g_byte_array_new ();
while (1) {
nread = read (fd, buf, sizeof (buf));
if (nread < 1)
break;
g_byte_array_append (ba, buf, nread);
}
close (fd);
url = g_strdup_printf ("x-evolution-data:%p", ba);
return add_url ("data_urls", url, ba, md);
}
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 (OAF_ServerInfo *component, const char *mime_type)
{
OAF_Property *prop;
CORBA_sequence_CORBA_string stringv;
int i;
prop = oaf_server_info_prop_find (component,
"bonobo:supported_mime_types");
if (!prop || prop->v._d != OAF_P_STRINGV)
return FALSE;
stringv = prop->v._u.value_stringv;
for (i = 0; i < stringv._length; i++) {
if (!g_strcasecmp (mime_type, stringv._buffer[i]))
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;
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;
/* 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->application =
gnome_vfs_mime_get_default_application (mime_type);
handler->builtin =
g_hash_table_lookup (mime_function_table, mime_type);
if (handler->builtin) {
handler->generic = FALSE;
goto reg;
}
/* Try for a exact component match. */
handler->component = gnome_vfs_mime_get_default_component (mime_type);
if (handler->component &&
component_supports (handler->component, mime_type)) {
handler->generic = FALSE;
handler->builtin = handle_via_bonobo;
goto reg;
}
/* Try for a generic builtin match. */
mime_type_main = g_strdup_printf ("%.*s/*",
(int)strcspn (mime_type, "/"),
mime_type);
handler->builtin = g_hash_table_lookup (mime_function_table,
mime_type_main);
g_free (mime_type_main);
if (handler->builtin) {
handler->generic = TRUE;
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->builtin = handle_via_bonobo;
goto reg;
}
/* If we at least got an application, use that. */
if (handler->application) {
handler->generic = TRUE;
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)
{
if (!g_strncasecmp (mime_type, "multipart/", 10) ||
!g_strncasecmp (mime_type, "message/", 8))
return TRUE;
if (!g_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;
char *type;
gboolean anon;
/* If it has an explicit disposition, return that. */
disposition = camel_mime_part_get_disposition (part);
if (disposition)
return g_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;
}
static void
attachment_header (CamelMimePart *part, const char *mime_type,
gboolean is_inline, MailDisplay *md)
{
const char *info;
char *htmlinfo;
/* No header for anonymous inline parts. */
if (is_inline && is_anonymous (part, mime_type))
return;
/* Start the table, create the pop-up object. */
mail_html_write (md->html, md->stream, "<table><tr><td>"
"<object classid=\"popup:%s\" type=\"%s\">"
"</object></td><td><font size=-1>",
get_cid (part, md), mime_type);
/* Write the MIME type */
info = gnome_vfs_mime_get_value (mime_type, "description");
htmlinfo = e_text_to_html (info ? info : mime_type, 0);
mail_html_write (md->html, md->stream, _("%s attachment"), htmlinfo);
g_free (htmlinfo);
/* Write the name, if we have it. */
info = camel_mime_part_get_filename (part);
if (info) {
htmlinfo = e_text_to_html (info, 0);
mail_html_write (md->html, md->stream, " (%s)", htmlinfo);
g_free (htmlinfo);
}
/* Write a description, if we have one. */
info = camel_mime_part_get_description (part);
if (info) {
htmlinfo = e_text_to_html (info, E_TEXT_TO_HTML_CONVERT_URLS);
mail_html_write (md->html, md->stream, ", \"%s\"", htmlinfo);
g_free (htmlinfo);
}
#if 0
/* Describe the click action, if any. */
if (action) {
mail_html_write (md->html, md->stream,
"<br>Click on the icon to %s.", action);
}
#endif
mail_html_write (md->html, md->stream, "</font></td></tr></table>");
}
static gboolean
format_mime_part (CamelMimePart *part, MailDisplay *md)
{
CamelDataWrapper *wrapper;
char *mime_type;
MailMimeHandler *handler;
gboolean output, is_inline;
/* 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_write (md->html, md->stream, _("Could not parse MIME message. Displaying as source."));
if (mail_content_loaded (wrapper, md))
handle_text_plain (part, "text/plain", md);
return TRUE;
}
mime_type = camel_data_wrapper_get_mime_type (wrapper);
g_strdown (mime_type);
handler = mail_lookup_handler (mime_type);
if (!handler) {
char *id_type;
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);
}
}
is_inline = mail_part_is_inline (part);
attachment_header (part, mime_type, is_inline, md);
if (handler && handler->builtin && is_inline &&
mail_content_loaded (wrapper, md))
output = (*handler->builtin) (part, mime_type, md);
else
output = TRUE;
g_free (mime_type);
return output;
}
/* flags for write_field_to_stream */
enum {
WRITE_BOLD=1,
};
static void
write_field_row_begin (const char *description, gint flags, GtkHTML *html, GtkHTMLStream *stream)
{
char *encoded_desc;
int bold = (flags & WRITE_BOLD) == WRITE_BOLD;
encoded_desc = e_utf8_from_gtk_string (GTK_WIDGET (html), description);
mail_html_write (html, stream, "<tr><%s align=\"right\" valign=\"top\">%s</%s>",
bold ? "th" : "td", encoded_desc, bold ? "th" : "td");
g_free (encoded_desc);
}
static void
write_date (CamelMimeMessage *message, int flags, GtkHTML *html, GtkHTMLStream *stream)
{
char *datestr;
time_t date;
int offset;
write_field_row_begin (_("Date:"), flags, html, stream);
date = camel_mime_message_get_date (message, &offset);
datestr = header_format_date (date, offset);
mail_html_write (html, stream, "<td>%s</td> </tr>", datestr);
g_free (datestr);
}
static void
write_subject (const char *subject, int flags, GtkHTML *html, GtkHTMLStream *stream)
{
char *encoded_subj;
if (subject)
encoded_subj = e_text_to_html (subject, E_TEXT_TO_HTML_CONVERT_NL | E_TEXT_TO_HTML_CONVERT_URLS);
else
encoded_subj = "";
write_field_row_begin (_("Subject:"), flags, html, stream);
mail_html_write (html, stream, "<td>%s</td> </tr>", encoded_subj);
if (subject)
g_free (encoded_subj);
}
static gchar *
elide_quotes (const gchar *str)
{
gchar *cpy = g_strdup (str);
gchar *c = cpy;
if (c) {
while (*c) {
if (*c == '"')
*c = '\'';
++c;
}
}
return cpy;
}
static void
write_address(MailDisplay *md, const CamelInternetAddress *addr, const char *field_name, int flags)
{
const char *name, *email;
gint i;
if (addr == NULL || !camel_internet_address_get (addr, 0, NULL, NULL))
return;
write_field_row_begin (field_name, flags, md->html, md->stream);
i = 0;
while (camel_internet_address_get (addr, i, &name, &email)) {
gboolean have_name = name && *name;
gboolean have_email = email && *email;
gchar *name_arg = NULL;
gchar *email_arg = NULL;
gchar *name_disp = NULL;
gchar *email_disp = NULL;
if (have_name) {
name_arg = elide_quotes (name);
name_disp = e_text_to_html (name, 0);
}
if (have_email) {
email_arg = elide_quotes (email);
email_disp = e_text_to_html (email, 0);
}
mail_html_write (md->html, md->stream, i ? ", " : "<td>");
if (have_email || have_name) {
if (!have_email) {
email_arg = g_strdup ("???");
email_disp = g_strdup ("???");
}
if (have_name) {
mail_html_write (md->html, md->stream,
"%s <<a href=\"mailto:%s <%s>\">%s</a>>",
name_disp, name_arg, email_arg, email_disp);
} else {
mail_html_write (md->html, md->stream,
"<a href=\"mailto:%s\">%s</a>",
email_arg, email_disp);
}
} else {
mail_html_write (md->html, md->stream, "<i>Bad Address</i>");
}
g_free (name_arg);
g_free (email_arg);
g_free (name_disp);
g_free (email_disp);
++i;
}
mail_html_write (md->html, md->stream, "</td></tr>"); /* Finish up the table row */
}
static void
write_headers (CamelMimeMessage *message, MailDisplay *md)
{
mail_html_write (md->html, md->stream,
"<font color=\"#000000\">"
"<table bgcolor=\"#000000\" width=\"100%%\" "
"cellspacing=0 cellpadding=1><tr><td>"
"<table bgcolor=\"#EEEEEE\" width=\"100%%\" cellpadding=0 cellspacing=0>"
"<tr><td><table>\n");
write_address(md, camel_mime_message_get_from(message),
_("From:"), WRITE_BOLD);
write_address(md, camel_mime_message_get_reply_to(message),
_("Reply-To:"), 0);
write_address(md, camel_mime_message_get_recipients(message, CAMEL_RECIPIENT_TYPE_TO),
_("To:"), WRITE_BOLD);
write_address(md, camel_mime_message_get_recipients(message, CAMEL_RECIPIENT_TYPE_CC),
_("Cc:"), WRITE_BOLD);
write_subject (camel_mime_message_get_subject (message), WRITE_BOLD, md->html, md->stream);
write_date (message,WRITE_BOLD, md->html, md->stream);
mail_html_write (md->html, md->stream,
"</table></td></tr></table></td></tr></table></font>");
}
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 (CAMEL_OBJECT (stream));
camel_object_unref (CAMEL_OBJECT (wrapper));
}
gboolean
mail_content_loaded (CamelDataWrapper *wrapper, MailDisplay *md)
{
if (!camel_data_wrapper_is_offline (wrapper))
return TRUE;
camel_object_ref (CAMEL_OBJECT (wrapper));
mail_display_redisplay_when_loaded (md, wrapper, load_offline_content, wrapper);
return FALSE;
}
/* Return the contents of a data wrapper, or %NULL if it contains only
* whitespace.
*/
static char *
get_data_wrapper_text (CamelDataWrapper *wrapper)
{
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);
camel_data_wrapper_write_to_stream (wrapper, memstream);
camel_object_unref (CAMEL_OBJECT (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;
}
g_byte_array_append (ba, "", 1);
text = ba->data;
g_byte_array_free (ba, FALSE);
return text;
}
/*----------------------------------------------------------------------*
* Mime handling functions
*----------------------------------------------------------------------*/
struct {
char *start;
char * (*handler) (char *start, MailDisplay *md);
} text_specials[] = {
{ "-----BEGIN PGP MESSAGE-----\n", try_inline_pgp },
{ "-----BEGIN PGP SIGNED MESSAGE-----\n", try_inline_pgp_sig },
{ "begin ", try_uudecoding },
{ "(This file must be converted with BinHex 4.0)\n", try_inline_binhex }
};
#define NSPECIALS (sizeof (text_specials) / sizeof (*text_specials))
static gboolean
handle_text_plain (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
char *text, *p, *start;
CamelContentType *type;
gboolean check_specials;
const char *format;
int i;
text = get_data_wrapper_text (wrapper);
if (!text)
return FALSE;
/* Check for RFC 2646 flowed text. */
type = camel_mime_part_get_content_type (part);
format = header_content_type_param (type, "format");
if (format && !g_strcasecmp (format, "flowed"))
return handle_text_plain_flowed (text, md);
mail_html_write (md->html, md->stream, "\n<!-- text/plain -->\n<font size=\"-3\"> </font><br>\n");
/* Only look for binhex and stuff if this is real text/plain.
* (and not, say, application/mac-binhex40 that mail-identify
* has decided to call text/plain because it starts with English
* text...)
*/
check_specials = (g_strcasecmp (mime_type, "text/plain") == 0);
p = text;
while (p && check_specials) {
/* Look for special cases. */
for (i = 0; i < NSPECIALS; i++) {
start = strstr (p, text_specials[i].start);
if (start && (start == p || start[-1] == '\n'))
break;
}
if (!start)
break;
/* Deal with special case */
if (start != p) {
/* the %.*s thing just grabs upto start-p chars; go read ANSI C */
mail_text_write (md->html, md->stream, "%.*s", start-p, p);
}
p = text_specials[i].handler (start, md);
if (p == start) {
/* Oops. That failed. Output this line normally and
* skip over it.
*/
p = strchr (start, '\n');
if (!p++)
break;
mail_text_write (md->html, md->stream, "%.*s", p-start, start);
} else if (p)
mail_html_write (md->html, md->stream, "<hr>");
}
/* Finish up (or do the whole thing if there were no specials). */
if (p)
mail_text_write (md->html, md->stream, "%s", p);
g_free (text);
return TRUE;
}
static gboolean
handle_text_plain_flowed (char *buf, MailDisplay *md)
{
char *text, *line, *eol, *p;
int prevquoting = 0, quoting, len, br_pending = 0;
guint32 citation_color = mail_config_get_citation_color ();
mail_html_write (md->html, md->stream,
"\n<!-- text/plain, flowed -->\n<font size=\"-3\"> </font><br>\n<tt>\n");
for (line = buf; *line; line = eol + 1) {
/* Process next line */
eol = strchr (line, '\n');
if (eol)
*eol = '\0';
quoting = 0;
for (p = line; *p == '>'; p++)
quoting++;
if (quoting != prevquoting) {
if (prevquoting == 0) {
mail_html_write (md->html, md->stream,
"<font color=\"#%06x\">",
citation_color);
if (br_pending)
br_pending--;
}
while (quoting > prevquoting) {
mail_html_write (md->html, md->stream,
"<blockquote>");
prevquoting++;
}
while (quoting < prevquoting) {
mail_html_write (md->html, md->stream,
"</blockquote>");
prevquoting--;
}
if (quoting == 0) {
mail_html_write (md->html, md->stream,
"</font>\n");
if (br_pending)
br_pending--;
}
}
if (*p == ' ')
p++;
len = strlen (p);
if (len == 0) {
br_pending++;
continue;
}
while (br_pending) {
mail_html_write (md->html, md->stream, "<br>\n");
br_pending--;
}
/* replace '<' with '<', etc. */
text = e_text_to_html (p, E_TEXT_TO_HTML_CONVERT_SPACES |
E_TEXT_TO_HTML_CONVERT_URLS);
if (text && *text)
mail_html_write (md->html, md->stream, "%s", text);
g_free (text);
if (p[len - 1] != ' ' || !strcmp (p, "-- "))
br_pending++;
if (!eol)
break;
}
g_free (buf);
mail_html_write (md->html, md->stream, "</tt>\n");
return TRUE;
}
static CamelMimePart *
fake_mime_part_from_data (const char *data, int len, const char *type)
{
CamelStream *memstream;
CamelDataWrapper *wrapper;
CamelMimePart *part;
memstream = camel_stream_mem_new_with_buffer (data, len);
wrapper = camel_data_wrapper_new ();
camel_data_wrapper_construct_from_stream (wrapper, memstream);
camel_data_wrapper_set_mime_type (wrapper, type);
camel_object_unref (CAMEL_OBJECT (memstream));
part = camel_mime_part_new ();
camel_medium_set_content_object (CAMEL_MEDIUM (part), wrapper);
camel_object_unref (CAMEL_OBJECT (wrapper));
camel_mime_part_set_disposition (part, "inline");
return part;
}
static void
destroy_part (CamelObject *root, gpointer event_data, gpointer user_data)
{
camel_object_unref (user_data);
}
static void
decode_pgp (CamelStream *ciphertext, CamelStream *plaintext, MailDisplay *md)
{
CamelException ex;
camel_exception_init (&ex);
/* FIXME: multipart parts */
/* another FIXME: this doesn't have to return plaintext you realize... */
if (g_datalist_get_data (md->data, "show_pgp")) {
CamelPgpContext *ctx;
ctx = camel_pgp_context_new (session, mail_config_get_pgp_type (),
mail_config_get_pgp_path ());
if (ctx) {
camel_pgp_decrypt (ctx, ciphertext, plaintext, &ex);
camel_object_unref (CAMEL_OBJECT (ctx));
camel_stream_reset (plaintext);
} else {
camel_exception_setv (&ex, CAMEL_EXCEPTION_SYSTEM,
_("No GPG/PGP program configured."));
}
if (!camel_exception_is_set (&ex))
return;
}
mail_html_write (md->html, md->stream,
"<table><tr valign=top><td>"
"<a href=\"x-evolution-decode-pgp:\">"
"<img src=\"%s\"></a></td><td>",
get_url_for_icon ("gnome-lockscreen.png", md));
if (camel_exception_is_set (&ex)) {
mail_html_write (md->html, md->stream, "%s<br><br>\n",
_("Encrypted message not displayed"));
mail_error_write (md->html, md->stream,
camel_exception_get_description (&ex));
camel_exception_clear (&ex);
} else {
mail_html_write (md->html, md->stream, "%s<br><br>\n%s",
_("Encrypted message"),
_("Click icon to decrypt."));
}
mail_html_write (md->html, md->stream, "</td></tr></table>");
}
static char *
try_inline_pgp (char *start, MailDisplay *md)
{
CamelStream *ciphertext, *plaintext;
GByteArray *buffer;
char *end;
end = strstr (start, "-----END PGP MESSAGE-----");
if (!end)
return start;
end += strlen ("-----END PGP MESSAGE-----") - 1;
mail_html_write (md->html, md->stream, "<hr>");
/* FIXME: uhm, pgp decrypted data doesn't have to be plaintext
* however, I suppose that since it was 'inline', it probably is */
ciphertext = camel_stream_mem_new ();
camel_stream_write (ciphertext, start, end - start);
camel_stream_reset (ciphertext);
plaintext = camel_stream_mem_new ();
decode_pgp (ciphertext, plaintext, md);
camel_object_unref (CAMEL_OBJECT (ciphertext));
buffer = CAMEL_STREAM_MEM (plaintext)->buffer;
if (buffer && buffer->len) {
mail_html_write (md->html, md->stream,
"<table width=\"100%%\" border=2 "
"cellpadding=4><tr><td>");
mail_text_write (md->html, md->stream, "%.*s", buffer->len, buffer->data);
mail_html_write (md->html, md->stream, "</td></tr></table>");
}
camel_object_unref (CAMEL_OBJECT (plaintext));
return end;
}
static char *
try_inline_pgp_sig (char *start, MailDisplay *md)
{
CamelCipherValidity *valid = NULL;
CamelPgpContext *context;
char *end;
end = strstr (start, "-----END PGP SIGNATURE-----");
if (!end)
return start;
end += strlen ("-----END PGP SIGNATURE-----");
mail_html_write (md->html, md->stream, "<hr>");
context = camel_pgp_context_new (session, mail_config_get_pgp_type (),
mail_config_get_pgp_path ());
if (context) {
CamelStream *ciphertext;
CamelException *ex;
ex = camel_exception_new ();
ciphertext = camel_stream_mem_new ();
camel_stream_write (ciphertext, start, end - start);
camel_stream_reset (ciphertext);
valid = camel_pgp_verify (context, ciphertext, NULL, ex);
camel_object_unref (CAMEL_OBJECT (ciphertext));
camel_object_unref (CAMEL_OBJECT (context));
camel_exception_free (ex);
}
mail_text_write (md->html, md->stream, "%.*s", end - start, start);
/* Now display the "seal-of-authenticity" or something... */
if (valid && camel_cipher_validity_get_valid (valid)) {
mail_html_write (md->html, md->stream,
"<hr>\n<table><tr valign=top>"
"<td><img src=\"%s\"></td>"
"<td><font size=-1>%s<br><br>",
get_url_for_icon ("wax-seal2.png", md),
_("This message is digitally signed and "
"has been found to be authentic."));
} else {
mail_html_write (md->html, md->stream,
"<hr>\n<table><tr valign=top>"
"<td><img src=\"%s\"></td>"
"<td><font size=-1>%s<br><br>",
get_url_for_icon ("wax-seal-broken.png", md),
_("This message is digitally signed but can "
"not be proven to be authentic."));
}
if (valid && camel_cipher_validity_get_description (valid)) {
mail_error_write (md->html, md->stream,
camel_cipher_validity_get_description (valid));
mail_html_write (md->html, md->stream, "<br><br>");
}
mail_html_write (md->html, md->stream, "</font></td></table>");
camel_cipher_validity_free (valid);
return end;
}
static char *
try_uudecoding (char *start, MailDisplay *md)
{
int mode, len, state = 0;
char *filename, *estart, *p, *out, uulen = 0;
guint32 save = 0;
CamelMimePart *part;
/* Make sure it's a real uudecode begin line:
* begin [0-7]+ .*
*/
mode = strtoul (start + 6, &p, 8);
if (p == start + 6 || *p != ' ')
return start;
estart = strchr (start, '\n');
if (!estart)
return start;
while (isspace ((unsigned char)*p))
p++;
filename = g_strndup (p, estart++ - p);
/* Make sure there's an end line. */
p = strstr (p, "\nend\n");
if (!p) {
g_free (filename);
return start;
}
out = g_malloc (p - estart);
len = uudecode_step (estart, p - estart, out, &state, &save, &uulen);
part = fake_mime_part_from_data (out, len, "application/octet-stream");
g_free (out);
camel_mime_part_set_filename (part, filename);
g_free (filename);
camel_object_hook_event (CAMEL_OBJECT (md->current_message),
"finalize", destroy_part, part);
mail_html_write (md->html, md->stream, "<hr>");
format_mime_part (part, md);
return p + 4;
}
static char *
try_inline_binhex (char *start, MailDisplay *md)
{
char *p;
CamelMimePart *part;
/* Find data start. */
p = strstr (start, "\n:");
if (!p)
return start;
/* And data end. */
p = strchr (p + 2, ':');
if (!p || (*(p + 1) != '\n' && *(p + 1) != '\0'))
return start;
p += 2;
part = fake_mime_part_from_data (start, p - start,
"application/mac-binhex40");
camel_object_hook_event (CAMEL_OBJECT (md->current_message),
"finalize", destroy_part, part);
mail_html_write (md->html, md->stream, "<hr>");
format_mime_part (part, md);
return p;
}
/* text/enriched (RFC 1896) or text/richtext (included in RFC 1341) */
static gboolean
handle_text_enriched (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
static GHashTable *translations = NULL;
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
GString *string;
GByteArray *ba;
char *text, *p, *xed;
int len, nofill = 0;
gboolean enriched;
if (!translations) {
translations = g_hash_table_new (g_strcase_hash,
g_strcase_equal);
g_hash_table_insert (translations, "bold", "<b>");
g_hash_table_insert (translations, "/bold", "</b>");
g_hash_table_insert (translations, "italic", "<i>");
g_hash_table_insert (translations, "/italic", "</i>");
g_hash_table_insert (translations, "fixed", "<tt>");
g_hash_table_insert (translations, "/fixed", "</tt>");
g_hash_table_insert (translations, "smaller", "<font size=-1>");
g_hash_table_insert (translations, "/smaller", "</font>");
g_hash_table_insert (translations, "bigger", "<font size=+1>");
g_hash_table_insert (translations, "/bigger", "</font>");
g_hash_table_insert (translations, "underline", "<u>");
g_hash_table_insert (translations, "/underline", "</u>");
g_hash_table_insert (translations, "center", "<p align=center>");
g_hash_table_insert (translations, "/center", "</p>");
g_hash_table_insert (translations, "flushleft", "<p align=left>");
g_hash_table_insert (translations, "/flushleft", "</p>");
g_hash_table_insert (translations, "flushright", "<p align=right>");
g_hash_table_insert (translations, "/flushright", "</p>");
g_hash_table_insert (translations, "excerpt", "<blockquote>");
g_hash_table_insert (translations, "/excerpt", "</blockquote>");
g_hash_table_insert (translations, "paragraph", "<p>");
g_hash_table_insert (translations, "signature", "<address>");
g_hash_table_insert (translations, "/signature", "</address>");
g_hash_table_insert (translations, "comment", "<!-- ");
g_hash_table_insert (translations, "/comment", " -->");
g_hash_table_insert (translations, "param", "<!-- ");
g_hash_table_insert (translations, "/param", " -->");
g_hash_table_insert (translations, "np", "<hr>");
}
text = get_data_wrapper_text (wrapper);
if (!text)
return FALSE;
if (!g_strcasecmp (mime_type, "text/richtext")) {
enriched = FALSE;
mail_html_write (md->html, md->stream,
"\n<!-- text/richtext -->\n");
} else {
enriched = TRUE;
mail_html_write (md->html, md->stream,
"\n<!-- text/enriched -->\n");
}
/* This is not great code, but I don't feel like fixing it right
* now. I mean, it's just text/enriched...
*/
p = text;
string = g_string_sized_new (2 * strlen (p));
while (p) {
len = strcspn (p, " <>&\n");
if (len)
g_string_sprintfa (string, "%.*s", len, p);
p += len;
if (!*p)
break;
switch (*p++) {
case ' ':
while (*p == ' ') {
g_string_append (string, " ");
p++;
}
g_string_append (string, " ");
break;
case '\n':
g_string_append (string, " ");
if (enriched && nofill <= 0) {
while (*p == '\n') {
g_string_append (string, "<br>");
p++;
}
}
break;
case '>':
g_string_append (string, ">");
break;
case '&':
g_string_append (string, "&");
break;
case '<':
if (enriched) {
if (*p == '<') {
g_string_append (string, "<");
p++;
break;
}
} else {
if (strncmp (p, "lt>", 3) == 0) {
g_string_append (string, "<");
p += 3;
break;
} else if (strncmp (p, "nl>", 3) == 0) {
g_string_append (string, "<br>");
p += 3;
break;
}
}
if (strncmp (p, "nofill>", 7) == 0) {
nofill++;
g_string_append (string, "<pre>");
} else if (strncmp (p, "/nofill>", 8) == 0) {
nofill--;
g_string_append (string, "</pre>");
} else {
char *copy, *match;
len = strcspn (p, ">");
copy = g_strndup (p, len);
match = g_hash_table_lookup (translations,
copy);
g_free (copy);
if (match)
g_string_append (string, match);
}
p = strchr (p, '>');
if (p)
p++;
}
}
g_free (text);
ba = g_byte_array_new ();
g_byte_array_append (ba, (const guint8 *)string->str,
strlen (string->str));
g_string_free (string, TRUE);
xed = g_strdup_printf ("x-evolution-data:%p", part);
mail_html_write (md->html, md->stream,
"<iframe src=\"%s\" frameborder=0 scrolling=no>"
"</iframe>", xed);
add_url ("data_urls", xed, ba, md);
return TRUE;
}
static gboolean
handle_text_html (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
const char *location;
mail_html_write (md->html, md->stream, "\n<!-- text/html -->\n");
/* FIXME: deal with relative URLs */
location = get_location (part, md);
if (!location)
location = get_cid (part, md);
mail_html_write (md->html, md->stream,
"<iframe src=\"%s\" frameborder=0 scrolling=no>"
"</iframe>", location);
return TRUE;
}
static gboolean
handle_image (CamelMimePart *part, const char *mime_type, MailDisplay *md)
{
mail_html_write (md->html, md->stream, "<img src=\"%s\">",
get_cid (part, md));
return TRUE;
}
static gboolean
handle_multipart_mixed (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *mp;
int i, nparts;
gboolean output = FALSE;
g_return_val_if_fail (CAMEL_IS_MULTIPART (wrapper), FALSE);
mp = CAMEL_MULTIPART (wrapper);
nparts = camel_multipart_get_number (mp);
for (i = 0; i < nparts; i++) {
if (i != 0 && output)
mail_html_write (md->html, md->stream, "<hr>\n");
part = camel_multipart_get_part (mp, i);
output = format_mime_part (part, md);
}
return TRUE;
}
static gboolean
handle_multipart_encrypted (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
CamelDataWrapper *wrapper;
CamelMimePart *mime_part;
CamelException ex;
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
g_return_val_if_fail (CAMEL_IS_MULTIPART (wrapper), FALSE);
/* Currently we only handle RFC2015-style PGP encryption. */
if (!camel_pgp_mime_is_rfc2015_encrypted (part))
return handle_multipart_mixed (part, mime_type, md);
camel_exception_init (&ex);
mime_part = mail_crypto_pgp_mime_part_decrypt (part, &ex);
if (camel_exception_is_set (&ex)) {
/* I guess we just treat this as a multipart/mixed */
camel_exception_clear (&ex);
return handle_multipart_mixed (part, mime_type, md);
} else {
gboolean retcode;
retcode = format_mime_part (mime_part, md);
camel_object_unref (CAMEL_OBJECT (mime_part));
return retcode;
}
}
static gboolean
handle_multipart_signed (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
CamelDataWrapper *wrapper;
CamelMultipart *mp;
CamelException *ex;
gboolean output = FALSE;
CamelCipherValidity *valid;
int nparts, i;
wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
g_return_val_if_fail (CAMEL_IS_MULTIPART (wrapper), FALSE);
/* Currently we only handle RFC2015-style PGP signatures. */
if (!camel_pgp_mime_is_rfc2015_signed (part))
return handle_multipart_mixed (part, mime_type, md);
ex = camel_exception_new ();
valid = mail_crypto_pgp_mime_part_verify (part, ex);
/* now display all the subparts *except* the signature */
mp = CAMEL_MULTIPART (wrapper);
nparts = camel_multipart_get_number (mp);
for (i = 0; i < nparts - 1; i++) {
if (i != 0 && output)
mail_html_write (md->html, md->stream, "<hr>\n");
part = camel_multipart_get_part (mp, i);
output = format_mime_part (part, md);
}
/* Now display the "seal-of-authenticity" or something... */
if (valid && camel_cipher_validity_get_valid (valid)) {
mail_html_write (md->html, md->stream,
"<hr>\n<table><tr valign=top>"
"<td><img src=\"%s\"></td>"
"<td><font size=-1>%s<br><br>",
get_url_for_icon ("wax-seal2.png", md),
_("This message is digitally signed and "
"has been found to be authentic."));
} else {
mail_html_write (md->html, md->stream,
"<hr>\n<table><tr valign=top>"
"<td><img src=\"%s\"></td>"
"<td><font size=-1>%s<br><br>",
get_url_for_icon ("wax-seal-broken.png", md),
_("This message is digitally signed but can "
"not be proven to be authentic."));
}
if (valid && camel_cipher_validity_get_description (valid)) {
mail_error_write (md->html, md->stream,
camel_cipher_validity_get_description (valid));
mail_html_write (md->html, md->stream, "<br><br>");
}
mail_html_write (md->html, md->stream, "</font></td></table>");
camel_exception_free (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)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *mp;
CamelMimePart *body_part, *display_part = NULL;
CamelContentType *content_type;
const char *start;
int i, nparts;
g_return_val_if_fail (CAMEL_IS_MULTIPART (wrapper), FALSE);
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 (!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);
}
/* 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);
}
/* Now, display the displayed part. */
return format_mime_part (display_part, md);
}
/* 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);
g_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)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *multipart;
CamelMimePart *mime_part;
g_return_val_if_fail (CAMEL_IS_MULTIPART (wrapper), FALSE);
multipart = CAMEL_MULTIPART (wrapper);
mime_part = find_preferred_alternative (multipart, FALSE);
if (mime_part)
return format_mime_part (mime_part, md);
else
return handle_multipart_mixed (part, mime_type, md);
}
/* RFC 1740 */
static gboolean
handle_multipart_appledouble (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
CamelMultipart *multipart;
g_return_val_if_fail (CAMEL_IS_MULTIPART (wrapper), FALSE);
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);
}
static gboolean
handle_message_rfc822 (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
CamelDataWrapper *wrapper =
camel_medium_get_content_object (CAMEL_MEDIUM (part));
g_return_val_if_fail (CAMEL_IS_MIME_MESSAGE (wrapper), FALSE);
mail_html_write (md->html, md->stream, "<blockquote>");
mail_format_mime_message (CAMEL_MIME_MESSAGE (wrapper), md);
mail_html_write (md->html, md->stream, "</blockquote>");
return TRUE;
}
static gboolean
handle_message_external_body (CamelMimePart *part, const char *mime_type,
MailDisplay *md)
{
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 (!g_strcasecmp (access_type, "ftp") ||
!g_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_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 (!g_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)
{
mail_html_write (md->html, md->stream,
"<object classid=\"%s\" type=\"%s\"></object>",
get_cid (part, md), mime_type);
return TRUE;
}
char *
mail_get_message_body (CamelDataWrapper *data, gboolean want_plain, gboolean *is_html)
{
CamelMultipart *mp;
CamelMimePart *subpart;
int i, nparts;
char *subtext, *old;
const char *boundary;
char *text = NULL;
CamelContentType *mime_type;
/* We only include text, message, and multipart bodies. */
mime_type = camel_data_wrapper_get_mime_type_field (data);
/* FIXME: This is wrong. We don't want to include large
* images. But if we don't do it this way, we don't get
* the headers...
*/
if (header_content_type_is (mime_type, "message", "*")) {
*is_html = FALSE;
return get_data_wrapper_text (data);
}
if (header_content_type_is (mime_type, "text", "*")) {
*is_html = header_content_type_is (mime_type, "text", "html");
return get_data_wrapper_text (data);
}
/* 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 (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, is_html);
}
nparts = camel_multipart_get_number (mp);
/* Otherwise, concatenate all the parts that we can. If we find
* an HTML part in there though, return just that: We don't want
* to deal with merging HTML and non-HTML parts.
*/
boundary = camel_multipart_get_boundary (mp);
for (i = 0; i < nparts; i++) {
subpart = camel_multipart_get_part (mp, i);
if (!mail_part_is_inline (subpart))
continue;
data = camel_medium_get_content_object (
CAMEL_MEDIUM (subpart));
subtext = mail_get_message_body (data, want_plain, is_html);
if (!subtext)
continue;
if (*is_html) {
g_free (text);
return subtext;
}
if (text) {
old = text;
text = g_strdup_printf ("%s\n--%s\n%s", old,
boundary, subtext);
g_free (subtext);
g_free (old);
} else
text = subtext;
}
return text;
}