diff options
Diffstat (limited to 'mail/mail-format.c')
| -rw-r--r-- | mail/mail-format.c | 2131 |
1 files changed, 0 insertions, 2131 deletions
diff --git a/mail/mail-format.c b/mail/mail-format.c deleted file mode 100644 index 92428af592..0000000000 --- a/mail/mail-format.c +++ /dev/null @@ -1,2131 +0,0 @@ -/* -*- 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; -} |