/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * mail-display.c: Mail display widget * * Author: * Miguel de Icaza * Bertrand Guiheneuf (bg@aful.org) * * (C) 2000 Helix Code, Inc. */ #include #include #include #include #include #include #include "e-util/e-util.h" #include "e-util/e-html-utils.h" #include "mail-display.h" #include "mail.h" #include #include #include #include #include #define PARENT_TYPE (gtk_vbox_get_type ()) static GtkObjectClass *mail_display_parent_class; static void redisplay (MailDisplay *md); /*----------------------------------------------------------------------* * Callbacks *----------------------------------------------------------------------*/ static void save_data_eexist_cb (int reply, gpointer user_data) { gboolean *ok = user_data; *ok = reply == 0; gtk_main_quit (); } static gboolean write_data_to_file (CamelMimePart *part, const char *name, gboolean unique) { CamelDataWrapper *data; CamelStream *stream_fs; int fd; g_return_val_if_fail (CAMEL_IS_MIME_PART (part), FALSE); data = camel_medium_get_content_object (CAMEL_MEDIUM (part)); fd = open (name, O_WRONLY | O_CREAT | O_EXCL, S_IRUSR | S_IWUSR); if (fd == -1 && errno == EEXIST && !unique) { gboolean ok = FALSE; gnome_ok_cancel_dialog_modal ( "A file by that name already exists.\nOverwrite it?", save_data_eexist_cb, &ok); GDK_THREADS_ENTER(); gtk_main (); GDK_THREADS_LEAVE(); if (!ok) return FALSE; fd = open (name, O_WRONLY | O_TRUNC); } if (fd == -1) { char *msg; msg = g_strdup_printf ("Could not open file %s:\n%s", name, g_strerror (errno)); gnome_error_dialog (msg); g_free (msg); return FALSE; } stream_fs = camel_stream_fs_new_with_fd (fd); if (camel_data_wrapper_write_to_stream (data, stream_fs) == -1 || camel_stream_flush (stream_fs) == -1) { char *msg; msg = g_strdup_printf ("Could not write data: %s", strerror (errno)); gnome_error_dialog (msg); g_free (msg); camel_object_unref (CAMEL_OBJECT (stream_fs)); return FALSE; } camel_object_unref (CAMEL_OBJECT (stream_fs)); return TRUE; } static char * make_safe_filename (const char *prefix, CamelMimePart *part) { GMimeContentField *type; const char *name = NULL; char *safe, *p; type = camel_mime_part_get_content_type (part); if (type) name = gmime_content_field_get_parameter (type, "name"); if (!name) name = camel_mime_part_get_filename (part); if (!name) name = "attachment"; p = strrchr (name, '/'); if (p) safe = g_strdup_printf ("%s%s", prefix, p); else safe = g_strdup_printf ("%s/%s", prefix, name); for (p = strrchr (safe, '/') + 1; *p; p++) { if (!isascii ((unsigned char)*p) || strchr (" /'\"`&();|<>${}!", *p)) *p = '_'; } return safe; } static CamelMimePart * part_for_url (const char *url, MailDisplay *md) { GHashTable *urls; urls = g_datalist_get_data (md->data, "urls"); g_return_val_if_fail (urls != NULL, NULL); return g_hash_table_lookup (urls, url); } static void launch_external (const char *url, MailDisplay *md) { const char *command = url + 21; char *tmpl, *tmpdir, *filename, *argv[2]; CamelMimePart *part = part_for_url (url, md); tmpl = g_strdup ("/tmp/evolution.XXXXXX"); #ifdef HAVE_MKDTEMP tmpdir = mkdtemp (tmpl); #else tmpdir = mktemp (tmpl); if (tmpdir) { if (mkdir (tmpdir, S_IRWXU) == -1) tmpdir = NULL; } #endif if (!tmpdir) { char *msg = g_strdup_printf ("Could not create temporary " "directory: %s", g_strerror (errno)); gnome_error_dialog (msg); g_free (msg); return; } filename = make_safe_filename (tmpdir, part); if (!write_data_to_file (part, filename, TRUE)) { g_free (tmpl); g_free (filename); return; } argv[0] = (char *)command; argv[1] = filename; gnome_execute_async (tmpdir, 2, argv); g_free (tmpdir); g_free (filename); } static void save_data_cb (GtkWidget *widget, gpointer user_data) { GtkFileSelection *file_select = (GtkFileSelection *) gtk_widget_get_ancestor (widget, GTK_TYPE_FILE_SELECTION); write_data_to_file (user_data, gtk_file_selection_get_filename (file_select), FALSE); gtk_widget_destroy (GTK_WIDGET (file_select)); } static void save_data (const char *cid, MailDisplay *md) { GtkFileSelection *file_select; char *filename; CamelMimePart *part; part = part_for_url (cid, md); g_return_if_fail (part != NULL); filename = make_safe_filename (g_get_home_dir (), part); file_select = GTK_FILE_SELECTION (gtk_file_selection_new ("Save Attachment")); gtk_file_selection_set_filename (file_select, filename); g_free (filename); gtk_signal_connect (GTK_OBJECT (file_select->ok_button), "clicked", GTK_SIGNAL_FUNC (save_data_cb), part); gtk_signal_connect_object (GTK_OBJECT (file_select->cancel_button), "clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy), GTK_OBJECT (file_select)); gtk_widget_show (GTK_WIDGET (file_select)); } static gboolean idle_redisplay (gpointer data) { MailDisplay *md = data; md->idle_id = 0; redisplay (md); return FALSE; } static void queue_redisplay (MailDisplay *md) { if (!md->idle_id) { md->idle_id = g_idle_add_full (G_PRIORITY_LOW, idle_redisplay, md, NULL); } } static void on_link_clicked (GtkHTML *html, const char *url, gpointer user_data) { MailDisplay *md = user_data; if (!g_strncasecmp (url, "news:", 5) || !g_strncasecmp (url, "nntp:", 5)) g_warning ("Can't handle news URLs yet."); else if (!g_strncasecmp (url, "mailto:", 7)) send_to_url (url); else if (!strncmp (url, "cid:", 4)) save_data (url, md); else if (!strncmp (url, "x-evolution-external:", 21)) launch_external (url, md); else if (!strcmp (url, "x-evolution-decode-pgp:")) { g_datalist_set_data (md->data, "show_pgp", GINT_TO_POINTER (1)); queue_redisplay (md); } else gnome_url_show (url); } static gboolean on_object_requested (GtkHTML *html, GtkHTMLEmbedded *eb, gpointer data) { MailDisplay *md = data; GHashTable *urls; CamelMedium *medium; CamelDataWrapper *wrapper; OAF_ServerInfo *component; GtkWidget *embedded; BonoboObjectClient *server; Bonobo_PersistStream persist; CORBA_Environment ev; GByteArray *ba; CamelStream *cstream; BonoboStream *bstream; if (strncmp (eb->classid, "cid:", 4) != 0) return FALSE; urls = g_datalist_get_data (md->data, "urls"); g_return_val_if_fail (urls != NULL, FALSE); medium = g_hash_table_lookup (urls, eb->classid); g_return_val_if_fail (CAMEL_IS_MEDIUM (medium), FALSE); wrapper = camel_medium_get_content_object (medium); component = gnome_vfs_mime_get_default_component (eb->type); if (!component) return FALSE; embedded = bonobo_widget_new_subdoc (component->iid, NULL); if (!embedded) embedded = bonobo_widget_new_control (component->iid, NULL); CORBA_free (component); if (!embedded) return FALSE; server = bonobo_widget_get_server (BONOBO_WIDGET (embedded)); persist = (Bonobo_PersistStream) bonobo_object_client_query_interface ( server, "IDL:Bonobo/PersistStream:1.0", NULL); if (persist == CORBA_OBJECT_NIL) { gtk_object_sink (GTK_OBJECT (embedded)); return FALSE; } /* Write the data to a CamelStreamMem... */ ba = g_byte_array_new (); cstream = camel_stream_mem_new_with_byte_array (ba); camel_data_wrapper_write_to_stream (wrapper, cstream); /* ...convert the CamelStreamMem to a BonoboStreamMem... */ bstream = bonobo_stream_mem_create (ba->data, ba->len, TRUE, FALSE); camel_object_unref (CAMEL_OBJECT (cstream)); /* ...and hydrate the PersistStream from the BonoboStream. */ CORBA_exception_init (&ev); Bonobo_PersistStream_load (persist, bonobo_object_corba_objref ( BONOBO_OBJECT (bstream)), eb->type, &ev); bonobo_object_unref (BONOBO_OBJECT (bstream)); Bonobo_Unknown_unref (persist, &ev); CORBA_Object_release (persist, &ev); if (ev._major != CORBA_NO_EXCEPTION) { gtk_object_sink (GTK_OBJECT (embedded)); CORBA_exception_free (&ev); return FALSE; } CORBA_exception_free (&ev); gtk_widget_show (embedded); gtk_container_add (GTK_CONTAINER (eb), embedded); return TRUE; } static void on_url_requested (GtkHTML *html, const char *url, GtkHTMLStream *handle, gpointer user_data) { MailDisplay *md = user_data; GHashTable *urls; urls = g_datalist_get_data (md->data, "urls"); g_return_if_fail (urls != NULL); user_data = g_hash_table_lookup (urls, url); if (user_data == NULL) return; if (strncmp (url, "cid:", 4) == 0) { CamelMedium *medium = user_data; CamelDataWrapper *data; CamelStream *stream_mem; GByteArray *ba; g_return_if_fail (CAMEL_IS_MEDIUM (medium)); data = camel_medium_get_content_object (medium); ba = g_byte_array_new (); stream_mem = camel_stream_mem_new_with_byte_array (ba); camel_data_wrapper_write_to_stream (data, stream_mem); gtk_html_write (html, handle, ba->data, ba->len); camel_object_unref (CAMEL_OBJECT (stream_mem)); } else if (strncmp (url, "x-evolution-data:", 17) == 0) { GByteArray *ba = user_data; g_return_if_fail (ba != NULL); gtk_html_write (html, handle, ba->data, ba->len); } } void mail_html_write (GtkHTML *html, GtkHTMLStream *stream, const char *format, ...) { char *buf; va_list ap; va_start (ap, format); buf = g_strdup_vprintf (format, ap); va_end (ap); gtk_html_write (html, stream, buf, strlen (buf)); g_free (buf); } void mail_text_write (GtkHTML *html, GtkHTMLStream *stream, const char *format, ...) { char *buf, *htmltext; va_list ap; va_start (ap, format); buf = g_strdup_vprintf (format, ap); va_end (ap); htmltext = e_text_to_html (buf, E_TEXT_TO_HTML_CONVERT_URLS | E_TEXT_TO_HTML_CONVERT_NL | E_TEXT_TO_HTML_CONVERT_SPACES); gtk_html_write (html, stream, "", 4); gtk_html_write (html, stream, htmltext, strlen (htmltext)); gtk_html_write (html, stream, "", 5); g_free (htmltext); g_free (buf); } void mail_error_write (GtkHTML *html, GtkHTMLStream *stream, const char *format, ...) { char *buf, *htmltext; va_list ap; va_start (ap, format); buf = g_strdup_vprintf (format, ap); va_end (ap); htmltext = e_text_to_html (buf, E_TEXT_TO_HTML_CONVERT_NL); gtk_html_write (html, stream, "", 20); gtk_html_write (html, stream, htmltext, strlen (htmltext)); gtk_html_write (html, stream, "
", 16); g_free (htmltext); g_free (buf); } static void clear_data (CamelObject *object, gpointer event_data, gpointer user_data) { GData *data = user_data; g_datalist_clear (&data); } static void redisplay (MailDisplay *md) { GtkAdjustment *adj; md->stream = gtk_html_begin (md->html); mail_html_write (md->html, md->stream, "%s%s", HTML_HEADER, "\n"); if (md->current_message) { camel_object_ref (CAMEL_OBJECT (md->current_message)); mail_format_mime_message (md->current_message, md); } mail_html_write (md->html, md->stream, "\n"); gtk_html_end (md->html, md->stream, GTK_HTML_STREAM_OK); md->stream = NULL; adj = e_scroll_frame_get_vadjustment (md->scroll); gtk_adjustment_set_value (adj, 0); e_scroll_frame_set_vadjustment (md->scroll, adj); adj = e_scroll_frame_get_hadjustment (md->scroll); gtk_adjustment_set_value (adj, 0); e_scroll_frame_set_hadjustment (md->scroll, adj); } /** * mail_display_set_message: * @mail_display: the mail display object * @medium: the input camel medium, or %NULL * * Makes the mail_display object show the contents of the medium * param. **/ void mail_display_set_message (MailDisplay *md, CamelMedium *medium) { /* For the moment, we deal only with CamelMimeMessage, but in * the future, we should be able to deal with any medium. */ if (medium && !CAMEL_IS_MIME_MESSAGE (medium)) return; /* Clean up from previous message. */ if (md->current_message) camel_object_unref (CAMEL_OBJECT (md->current_message)); md->current_message = (CamelMimeMessage*)medium; g_datalist_init (md->data); redisplay (md); if (medium) { camel_object_hook_event (CAMEL_OBJECT (medium), "finalize", clear_data, *(md->data)); } } /*----------------------------------------------------------------------* * Standard Gtk+ Class functions *----------------------------------------------------------------------*/ static void mail_display_init (GtkObject *object) { MailDisplay *mail_display = MAIL_DISPLAY (object); /* various other initializations */ mail_display->current_message = NULL; } static void mail_display_destroy (GtkObject *object) { MailDisplay *mail_display = MAIL_DISPLAY (object); g_datalist_clear (mail_display->data); g_free (mail_display->data); mail_display_parent_class->destroy (object); } static void mail_display_class_init (GtkObjectClass *object_class) { object_class->destroy = mail_display_destroy; mail_display_parent_class = gtk_type_class (PARENT_TYPE); } GtkWidget * mail_display_new (void) { MailDisplay *mail_display = gtk_type_new (mail_display_get_type ()); GtkWidget *scroll, *html; gtk_box_set_homogeneous (GTK_BOX (mail_display), FALSE); gtk_widget_show (GTK_WIDGET (mail_display)); scroll = e_scroll_frame_new (NULL, NULL); e_scroll_frame_set_policy (E_SCROLL_FRAME (scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); e_scroll_frame_set_shadow_type (E_SCROLL_FRAME (scroll), GTK_SHADOW_IN); gtk_box_pack_start_defaults (GTK_BOX (mail_display), GTK_WIDGET (scroll)); gtk_widget_show (GTK_WIDGET (scroll)); html = gtk_html_new (); gtk_html_set_editable (GTK_HTML (html), FALSE); gtk_signal_connect (GTK_OBJECT (html), "url_requested", GTK_SIGNAL_FUNC (on_url_requested), mail_display); gtk_signal_connect (GTK_OBJECT (html), "object_requested", GTK_SIGNAL_FUNC (on_object_requested), mail_display); gtk_signal_connect (GTK_OBJECT (html), "link_clicked", GTK_SIGNAL_FUNC (on_link_clicked), mail_display); gtk_container_add (GTK_CONTAINER (scroll), html); gtk_widget_show (GTK_WIDGET (html)); mail_display->scroll = E_SCROLL_FRAME (scroll); mail_display->html = GTK_HTML (html); mail_display->stream = NULL; mail_display->data = g_new0 (GData *, 1); g_datalist_init (mail_display->data); return GTK_WIDGET (mail_display); } E_MAKE_TYPE (mail_display, "MailDisplay", MailDisplay, mail_display_class_init, mail_display_init, PARENT_TYPE);