/* * e-mail-request.c * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU Lesser 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 Lesser General Public License * along with this program; if not, see . * */ #define LIBSOUP_USE_UNSTABLE_REQUEST_API #include "e-mail-request.h" #include "em-utils.h" #include #include #include #include #include #include #include "shell/e-shell.h" #include "em-format/e-mail-formatter.h" #include "em-format/e-mail-formatter-utils.h" #include "em-format/e-mail-formatter-print.h" #include "e-mail-ui-session.h" #define d(x) #define dd(x) #define E_MAIL_REQUEST_GET_PRIVATE(obj) \ (G_TYPE_INSTANCE_GET_PRIVATE \ ((obj), E_TYPE_MAIL_REQUEST, EMailRequestPrivate)) struct _EMailRequestPrivate { GBytes *bytes; gchar *mime_type; GHashTable *uri_query; gchar *uri_base; gchar *full_uri; gchar *ret_mime_type; }; static const gchar *data_schemes[] = { "mail", NULL }; G_DEFINE_TYPE (EMailRequest, e_mail_request, SOUP_TYPE_REQUEST) static void handle_mail_request (GSimpleAsyncResult *simple, GObject *object, GCancellable *cancellable) { EMailRequest *request = E_MAIL_REQUEST (object); EMailFormatter *formatter; EMailPartList *part_list; CamelObjectBag *registry; GInputStream *input_stream; GOutputStream *output_stream; const gchar *val; const gchar *default_charset, *charset; EMailFormatterContext context = { 0 }; if (g_cancellable_is_cancelled (cancellable)) return; registry = e_mail_part_list_get_registry (); part_list = camel_object_bag_get (registry, request->priv->uri_base); if (camel_debug_start ("emformat:requests")) { printf ("%s: found part-list %p for full_uri '%s'\n", G_STRFUNC, part_list, request->priv->full_uri); camel_debug_end (); } if (!part_list) return; val = g_hash_table_lookup ( request->priv->uri_query, "headers_collapsed"); if (val != NULL && atoi (val) == 1) context.flags |= E_MAIL_FORMATTER_HEADER_FLAG_COLLAPSED; val = g_hash_table_lookup ( request->priv->uri_query, "headers_collapsable"); if (val != NULL && atoi (val) == 1) context.flags |= E_MAIL_FORMATTER_HEADER_FLAG_COLLAPSABLE; val = g_hash_table_lookup (request->priv->uri_query, "mode"); if (val != NULL) context.mode = atoi (val); default_charset = g_hash_table_lookup ( request->priv->uri_query, "formatter_default_charset"); charset = g_hash_table_lookup ( request->priv->uri_query, "formatter_charset"); context.part_list = g_object_ref (part_list); context.uri = request->priv->full_uri; if (context.mode == E_MAIL_FORMATTER_MODE_PRINTING) formatter = e_mail_formatter_print_new (); else formatter = e_mail_formatter_new (); if (default_charset != NULL && *default_charset != '\0') e_mail_formatter_set_default_charset (formatter, default_charset); if (charset != NULL && *charset != '\0') e_mail_formatter_set_charset (formatter, charset); output_stream = g_memory_output_stream_new_resizable (); val = g_hash_table_lookup (request->priv->uri_query, "part_id"); if (val != NULL) { EMailPart *part; const gchar *mime_type; gchar *part_id; part_id = soup_uri_decode (val); part = e_mail_part_list_ref_part (part_list, part_id); if (!part) { if (camel_debug_start ("emformat:requests")) { printf ("%s: part with id '%s' not found\n", G_STRFUNC, part_id); camel_debug_end (); } g_free (part_id); goto no_part; } g_free (part_id); mime_type = g_hash_table_lookup ( request->priv->uri_query, "mime_type"); if (context.mode == E_MAIL_FORMATTER_MODE_SOURCE) mime_type = "application/vnd.evolution.source"; if (context.mode == E_MAIL_FORMATTER_MODE_CID) { CamelDataWrapper *dw; CamelMimePart *mime_part; mime_part = e_mail_part_ref_mime_part (part); dw = camel_medium_get_content (CAMEL_MEDIUM (mime_part)); g_return_if_fail (dw); camel_data_wrapper_decode_to_output_stream_sync ( dw, output_stream, cancellable, NULL); g_object_unref (mime_part); } else { if (mime_type == NULL) mime_type = e_mail_part_get_mime_type (part); e_mail_formatter_format_as ( formatter, &context, part, output_stream, mime_type, cancellable); } g_object_unref (part); } else { e_mail_formatter_format_sync ( formatter, part_list, output_stream, context.flags, context.mode, cancellable); } no_part: g_clear_object (&context.part_list); g_output_stream_close (output_stream, NULL, NULL); if (request->priv->bytes != NULL) g_bytes_unref (request->priv->bytes); request->priv->bytes = g_memory_output_stream_steal_as_bytes ( G_MEMORY_OUTPUT_STREAM (output_stream)); if (g_bytes_get_size (request->priv->bytes) == 0) { gchar *data; g_bytes_unref (request->priv->bytes); data = g_strdup_printf ( "

%s

", _("The message has no text content.")); /* Takes ownership of the string. */ request->priv->bytes = g_bytes_new_take ( data, strlen (data) + 1); } input_stream = g_memory_input_stream_new_from_bytes (request->priv->bytes); g_simple_async_result_set_op_res_gpointer ( simple, g_object_ref (input_stream), (GDestroyNotify) g_object_unref); g_object_unref (input_stream); g_object_unref (output_stream); g_object_unref (part_list); g_object_unref (formatter); } static GInputStream * get_empty_image_stream (void) { GdkPixbuf *pixbuf; gchar *buffer; gsize length; pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, 1, 1); gdk_pixbuf_fill (pixbuf, 0x00000000); /* transparent black */ gdk_pixbuf_save_to_buffer (pixbuf, &buffer, &length, "png", NULL, NULL); g_object_unref (pixbuf); return g_memory_input_stream_new_from_data (buffer, length, g_free); } static void handle_contact_photo_request (GSimpleAsyncResult *simple, GObject *object, GCancellable *cancellable) { EMailRequest *request = E_MAIL_REQUEST (object); EShell *shell; EShellBackend *shell_backend; EMailBackend *mail_backend; EMailSession *mail_session; EPhotoCache *photo_cache; CamelInternetAddress *cia; GInputStream *stream = NULL; const gchar *email_address; const gchar *escaped_string; gchar *unescaped_string; GError *error = NULL; /* XXX Is this really the only way to obtain * the mail session instance from here? */ shell = e_shell_get_default (); shell_backend = e_shell_get_backend_by_name (shell, "mail"); mail_backend = E_MAIL_BACKEND (shell_backend); mail_session = e_mail_backend_get_session (mail_backend); photo_cache = e_mail_ui_session_get_photo_cache ( E_MAIL_UI_SESSION (mail_session)); request->priv->mime_type = g_strdup ("image/*"); escaped_string = g_hash_table_lookup ( request->priv->uri_query, "mailaddr"); if (escaped_string == NULL || *escaped_string == '\0') goto exit; cia = camel_internet_address_new (); unescaped_string = g_uri_unescape_string (escaped_string, NULL); camel_address_decode (CAMEL_ADDRESS (cia), unescaped_string); g_free (unescaped_string); if (camel_internet_address_get (cia, 0, NULL, &email_address)) e_photo_cache_get_photo_sync ( photo_cache, email_address, cancellable, &stream, &error); g_object_unref (cia); /* Ignore cancellations. */ if (g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) { g_clear_error (&error); } else if (error != NULL) { g_warning ("%s: %s", G_STRFUNC, error->message); g_clear_error (&error); } exit: if (stream == NULL) stream = get_empty_image_stream (); g_simple_async_result_set_op_res_gpointer ( simple, g_object_ref (stream), (GDestroyNotify) g_object_unref); g_object_unref (stream); } static void mail_request_finalize (GObject *object) { EMailRequestPrivate *priv; priv = E_MAIL_REQUEST_GET_PRIVATE (object); if (priv->bytes != NULL) g_bytes_unref (priv->bytes); if (priv->uri_query != NULL) g_hash_table_destroy (priv->uri_query); g_free (priv->mime_type); g_free (priv->uri_base); g_free (priv->full_uri); g_free (priv->ret_mime_type); /* Chain up to parent's finalize() method. */ G_OBJECT_CLASS (e_mail_request_parent_class)->finalize (object); } static gboolean mail_request_check_uri (SoupRequest *request, SoupURI *uri, GError **error) { return (strcmp (uri->scheme, "mail") == 0); } static void mail_request_send_async (SoupRequest *request, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { EMailRequestPrivate *priv; GSimpleAsyncResult *simple; SoupURI *uri; priv = E_MAIL_REQUEST_GET_PRIVATE (request); uri = soup_request_get_uri (request); d (printf ("received request for %s\n", soup_uri_to_string (uri, FALSE))); if (uri->query) { priv->uri_query = soup_form_decode (uri->query); } else { priv->uri_query = NULL; } priv->full_uri = soup_uri_to_string (uri, FALSE); priv->uri_base = g_strdup_printf ( "%s://%s%s", uri->scheme, uri->host, uri->path); simple = g_simple_async_result_new ( G_OBJECT (request), callback, user_data, mail_request_send_async); g_simple_async_result_set_check_cancellable (simple, cancellable); if (g_strcmp0 (uri->host, "contact-photo") == 0) { g_simple_async_result_run_in_thread ( simple, handle_contact_photo_request, G_PRIORITY_DEFAULT, cancellable); } else { /* Process e-mail mail requests in this thread, which should be * the main/UI thread, because any EMailFormatter can create * GtkWidget-s, or manipulate with them, which should be always * done in the main/UI thread. */ handle_mail_request (simple, G_OBJECT (request), cancellable); g_simple_async_result_complete_in_idle (simple); } g_object_unref (simple); } static GInputStream * mail_request_send_finish (SoupRequest *request, GAsyncResult *result, GError **error) { GSimpleAsyncResult *simple; GInputStream *stream; simple = G_SIMPLE_ASYNC_RESULT (result); stream = g_simple_async_result_get_op_res_gpointer (simple); /* Reset the stream before passing it back to webkit */ if (G_IS_SEEKABLE (stream)) g_seekable_seek ( G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, NULL); if (stream == NULL) { /* We must always return something */ stream = g_memory_input_stream_new (); } else { g_object_ref (stream); } return stream; } static goffset mail_request_get_content_length (SoupRequest *request) { EMailRequestPrivate *priv; goffset content_length = -1; /* -1 means unknown */ priv = E_MAIL_REQUEST_GET_PRIVATE (request); if (priv->bytes != NULL) content_length = g_bytes_get_size (priv->bytes); return content_length; } static const gchar * mail_request_get_content_type (SoupRequest *request) { EMailRequestPrivate *priv; gchar *mime_type; priv = E_MAIL_REQUEST_GET_PRIVATE (request); if (priv->mime_type != NULL) { mime_type = g_strdup (priv->mime_type); } else { mime_type = g_strdup ("text/html"); } if (g_strcmp0 (mime_type, "text/html") == 0) { priv->ret_mime_type = g_strconcat ( mime_type, "; charset=\"UTF-8\"", NULL); g_free (mime_type); } else { priv->ret_mime_type = mime_type; } d (printf ("Content-Type: %s\n", priv->ret_mime_type)); return priv->ret_mime_type; } static void e_mail_request_class_init (EMailRequestClass *class) { GObjectClass *object_class; SoupRequestClass *request_class; g_type_class_add_private (class, sizeof (EMailRequestPrivate)); object_class = G_OBJECT_CLASS (class); object_class->finalize = mail_request_finalize; request_class = SOUP_REQUEST_CLASS (class); request_class->schemes = data_schemes; request_class->send_async = mail_request_send_async; request_class->send_finish = mail_request_send_finish; request_class->get_content_type = mail_request_get_content_type; request_class->get_content_length = mail_request_get_content_length; request_class->check_uri = mail_request_check_uri; } static void e_mail_request_init (EMailRequest *request) { request->priv = E_MAIL_REQUEST_GET_PRIVATE (request); }