/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * Authors: Dan Winship * Jeffrey Stedfast * * Copyright 2000, 2003 Ximian, Inc. * * 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 #endif #include /* for strstr */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #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 "" 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 "
"); mail_format_data_wrapper_write_to_stream (wrapper, md, (CamelStream *) filtered_stream); camel_object_unref (filtered_stream); camel_stream_write_string ((CamelStream *) stream, "
"); } 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, ""); if (!md->printing) { camel_stream_printf ((CamelStream *) stream, "", get_cid (part, md), mime_type); } camel_stream_write_string ((CamelStream *) stream, "
" "" "
" "
"); /* 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, "
" "
" "
\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, "%s%s:%s ", bold ? "" : "", name, bold ? "" : ""); } else { camel_stream_printf ((CamelStream *) stream, "<%s align=\"right\" valign=\"top\">%s:" " ", 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) { write_field_row_begin (stream, _("Date"), flags); camel_stream_printf ((CamelStream *) stream, "%s ", datestr); } } 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", 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 <%s>", name_disp, addr_url, email_disp); } } else { if (md->printing) { camel_stream_write_string ((CamelStream *) stream, email_disp); } else { camel_stream_printf ((CamelStream *) stream, "%s", addr_url, email_disp); } } } else { camel_stream_printf ((CamelStream *) stream, "%s", _("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, ""); } /* 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, ""); /* Top margin */ camel_stream_write_string ((CamelStream *) stream, ""); /* Left margin */ camel_stream_write_string ((CamelStream *) stream, ""); /* Black border */ camel_stream_write_string ((CamelStream *) stream, "" /* Right margin */ "" "
" "
" "
"); /* Main header box */ camel_stream_printf ((CamelStream *) stream, "
" /* Internal header table */ ""); if (!md->printing && evo_icon) { camel_stream_printf ((CamelStream *) stream, "", mail_display_get_url_for_icon (md, EVOLUTION_ICONSDIR "/monkey-16.png")); } camel_stream_write_string ((CamelStream *) stream, /* Main header box */ "
\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, "
" "
" /* Black border */ "
" "
\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, MailDisplay *mail_display, CamelStream *stream) { CamelStreamFilter *filtered_stream; ssize_t written; filtered_stream = camel_stream_filter_new_with_stream (stream); if (wrapper->rawtext || (mail_display && mail_display->charset)) { CamelMimeFilterCharset *filter; CamelContentType *content_type; GConfClient *gconf; char *charset; gconf = mail_config_get_gconf_client (); content_type = camel_data_wrapper_get_mime_type_field (wrapper); if (!wrapper->rawtext) { /* data wrapper had been successfully converted to UTF-8 using the mime part's charset, but the user thinks he knows best so we'll let him shoot himself in the foot here... */ /* get the original charset of the mime part */ charset = (char *) (content_type ? header_content_type_param (content_type, "charset") : NULL); if (!charset) charset = gconf_client_get_string (gconf, "/apps/evolution/mail/format/charset", NULL); else charset = g_strdup (charset); /* since the content is already in UTF-8, we need to decode into the original charset before we can convert back to UTF-8 using the charset the user is overriding with... */ if ((filter = camel_mime_filter_charset_new_convert ("utf-8", charset))) { camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (filter)); camel_object_unref (filter); } g_free (charset); } /* find out the charset the user wants to override to */ if (mail_display && mail_display->charset) charset = g_strdup (mail_display->charset); else if (content_type && (charset = (char *) header_content_type_param (content_type, "charset"))) charset = g_strdup (charset); else charset = gconf_client_get_string (gconf, "/apps/evolution/mail/format/charset", NULL); if ((filter = camel_mime_filter_charset_new_convert (charset, "utf-8"))) { camel_stream_filter_add (filtered_stream, CAMEL_MIME_FILTER (filter)); camel_object_unref (filter); } g_free (charset); } written = camel_data_wrapper_write_to_stream (wrapper, CAMEL_STREAM (filtered_stream)); camel_stream_flush (CAMEL_STREAM (filtered_stream)); camel_object_unref (filtered_stream); return written; } /* 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, 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 "
" "\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 "\n"); wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part)); mail_format_data_wrapper_write_to_stream (wrapper, md, (CamelStream *) filtered_stream); camel_stream_write_string ((CamelStream *) stream, "\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\n"); } else { camel_stream_write_string ((CamelStream *) stream, "\n\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 "\n"); wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part)); mail_format_data_wrapper_write_to_stream (wrapper, md, (CamelStream *) filtered_stream); camel_stream_write_string ((CamelStream *) stream, "\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\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, "", location, location); return TRUE; } static gboolean handle_image (CamelMimePart *part, const char *mime_type, MailDisplay *md, MailDisplayStream *stream) { camel_stream_printf ((CamelStream *) stream, "", 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; CamelException ex; gboolean handled; /* Currently we only handle RFC2015-style PGP encryption. */ if (!camel_pgp_mime_is_rfc2015_encrypted (part)) 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, "
" "" "" "" "
" "
" "
", 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, "
" "" "" "
\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, "
" "%s

", 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, "
" "%s

", 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, "", good || md->printing ? "" : " color=red"); mail_text_write (stream, md, part, 0, md->printing, message); camel_stream_write_string ((CamelStream *) stream, ""); } camel_stream_write_string ((CamelStream *) stream, "
"); 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, "
"); mail_format_mime_message (CAMEL_MIME_MESSAGE (wrapper), md, stream); camel_stream_write_string ((CamelStream *) stream, "
"); 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, "", 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 "
", wrap it around the
	 * headers too so we won't get a blank line between them for the
	 * 

to

 switch.
	 */
	if (!strncasecmp (text, "
", 5))
		g_string_append_printf (retval, "
");
	
	/* 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, "%sFrom: %s
", 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, "%sTo: %s
", 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, "%sCc: %s
", 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, "%sSubject: %s
", 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, "%sDate: %s
", citation, html); g_free (html); g_free (buf); if (!strncasecmp (text, "
", 5))
		g_string_append_printf (retval, "%s
%s", citation, text + 5); else g_string_append_printf (retval, "%s
%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; 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 = "
\n> ----
\n>
\n"; else div = "
\n----
\n
\n"; } else div = "


"; 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; }