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-rw-r--r--camel/camel-multipart.c574
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diff --git a/camel/camel-multipart.c b/camel/camel-multipart.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/* camel-multipart.c : Abstract class for a multipart */
-
-
-/*
- *
- * Author :
- * Bertrand Guiheneuf <bertrand@helixcode.com>
- *
- * Copyright 1999, 2000 HelixCode (http://www.helixcode.com) .
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- * USA
- */
-
-#include <config.h>
-#include "camel-log.h"
-#include "gmime-content-field.h"
-#include "gmime-utils.h"
-#include "camel-stream-mem.h"
-#include "camel-seekable-substream.h"
-#include "camel-mime-body-part.h"
-#include "camel-multipart.h"
-
-
-static void _add_part (CamelMultipart *multipart,
- CamelMimeBodyPart *part);
-static void _add_part_at (CamelMultipart *multipart,
- CamelMimeBodyPart *part,
- guint index);
-static void _remove_part (CamelMultipart *multipart,
- CamelMimeBodyPart *part);
-static CamelMimeBodyPart * _remove_part_at (CamelMultipart *multipart,
- guint index);
-static CamelMimeBodyPart * _get_part (CamelMultipart *multipart,
- guint index);
-static guint _get_number (CamelMultipart *multipart);
-static void _set_parent (CamelMultipart *multipart,
- CamelMimePart *parent);
-static CamelMimePart * _get_parent (CamelMultipart *multipart);
-static void _set_boundary (CamelMultipart *multipart,
- gchar *boundary);
-static const gchar * _get_boundary (CamelMultipart *multipart);
-static void _write_to_stream (CamelDataWrapper *data_wrapper,
- CamelStream *stream);
-static void _set_input_stream (CamelDataWrapper *data_wrapper,
- CamelStream *stream);
-
-static void _finalize (GtkObject *object);
-
-static CamelDataWrapperClass *parent_class=NULL;
-
-
-
-/* Returns the class for a CamelMultipart */
-#define CMP_CLASS(so) CAMEL_MULTIPART_CLASS (GTK_OBJECT(so)->klass)
-
-/* Returns the class for a CamelDataWrapper */
-#define CDW_CLASS(so) CAMEL_DATA_WRAPPER_CLASS (GTK_OBJECT(so)->klass)
-
-
-static void
-camel_multipart_class_init (CamelMultipartClass *camel_multipart_class)
-{
- CamelDataWrapperClass *camel_data_wrapper_class = CAMEL_DATA_WRAPPER_CLASS (camel_multipart_class);
- GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (camel_multipart_class);
-
- parent_class = gtk_type_class (camel_data_wrapper_get_type ());
-
- /* virtual method definition */
- camel_multipart_class->add_part = _add_part;
- camel_multipart_class->add_part_at = _add_part_at;
- camel_multipart_class->remove_part = _remove_part;
- camel_multipart_class->remove_part_at = _remove_part_at;
- camel_multipart_class->get_part = _get_part;
- camel_multipart_class->get_number = _get_number;
- camel_multipart_class->set_parent = _set_parent;
- camel_multipart_class->get_parent = _get_parent;
- camel_multipart_class->set_boundary = _set_boundary;
- camel_multipart_class->get_boundary = _get_boundary;
-
- /* virtual method overload */
- camel_data_wrapper_class->write_to_stream = _write_to_stream;
- camel_data_wrapper_class->set_input_stream = _set_input_stream;
-
- gtk_object_class->finalize = _finalize;
-}
-
-static void
-camel_multipart_init (gpointer object, gpointer klass)
-{
- CamelMultipart *multipart = CAMEL_MULTIPART (object);
- camel_data_wrapper_set_mime_type ( CAMEL_DATA_WRAPPER (multipart), "multipart");
- camel_multipart_set_boundary (multipart, "__camel_boundary__");
- multipart->preface = NULL;
- multipart->postface = NULL;
-
-}
-
-
-
-
-GtkType
-camel_multipart_get_type (void)
-{
- static GtkType camel_multipart_type = 0;
-
- if (!camel_multipart_type) {
- GtkTypeInfo camel_multipart_info =
- {
- "CamelMultipart",
- sizeof (CamelMultipart),
- sizeof (CamelMultipartClass),
- (GtkClassInitFunc) camel_multipart_class_init,
- (GtkObjectInitFunc) camel_multipart_init,
- /* reserved_1 */ NULL,
- /* reserved_2 */ NULL,
- (GtkClassInitFunc) NULL,
- };
-
- camel_multipart_type = gtk_type_unique (camel_data_wrapper_get_type (), &camel_multipart_info);
- }
-
- return camel_multipart_type;
-}
-
-static void
-_unref_part (gpointer data, gpointer user_data)
-{
- GtkObject *body_part = GTK_OBJECT (data);
-
- gtk_object_unref (body_part);
-}
-
-static void
-_finalize (GtkObject *object)
-{
- CamelMultipart *multipart = CAMEL_MULTIPART (object);
-
- CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::finalize\n");
-
- if (multipart->parent) gtk_object_unref (GTK_OBJECT (multipart->parent));
-
- g_list_foreach (multipart->parts, _unref_part, NULL);
-
- if (multipart->boundary) g_free (multipart->boundary);
- if (multipart->preface) g_free (multipart->preface);
- if (multipart->postface) g_free (multipart->postface);
-
- GTK_OBJECT_CLASS (parent_class)->finalize (object);
- CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::finalize\n");
-}
-
-
-
-CamelMultipart *
-camel_multipart_new (void)
-{
- CamelMultipart *multipart;
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Entering new()\n");
-
- multipart = (CamelMultipart *)gtk_type_new (CAMEL_MULTIPART_TYPE);
- multipart->preface = NULL;
- multipart->postface = NULL;
-
-
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Leaving new()\n");
- return multipart;
-}
-
-
-static void
-_add_part (CamelMultipart *multipart, CamelMimeBodyPart *part)
-{
- multipart->parts = g_list_append (multipart->parts, part);
- if (part) gtk_object_ref (GTK_OBJECT (part));
-}
-
-void
-camel_multipart_add_part (CamelMultipart *multipart, CamelMimeBodyPart *part)
-{
- CMP_CLASS (multipart)->add_part (multipart, part);
-}
-
-
-static void
-_add_part_at (CamelMultipart *multipart, CamelMimeBodyPart *part, guint index)
-{
- multipart->parts = g_list_insert (multipart->parts, part, index);
- if (part) gtk_object_ref (GTK_OBJECT (part));
-}
-
-void
-camel_multipart_add_part_at (CamelMultipart *multipart, CamelMimeBodyPart *part, guint index)
-{
- CMP_CLASS (multipart)->add_part_at (multipart, part, index);
-}
-
-static void
-_remove_part (CamelMultipart *multipart, CamelMimeBodyPart *part)
-{
- if (!multipart->parts) {
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::remove_part part list id void\n");
- return;
- }
- multipart->parts = g_list_remove (multipart->parts, part);
- if (part) gtk_object_unref (GTK_OBJECT (part));
-}
-
-void
-camel_multipart_remove_part (CamelMultipart *multipart, CamelMimeBodyPart *part)
-{
- CMP_CLASS (multipart)->remove_part (multipart, part);
-}
-
-
-static CamelMimeBodyPart *
-_remove_part_at (CamelMultipart *multipart, guint index)
-{
- GList *parts_list;
- GList *part_to_remove;
- CamelMimeBodyPart *removed_body_part;
-
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Entering remove_part_at\n");
- CAMEL_LOG_TRACE ("CamelMultipart::remove_part_at : Removing part number %d\n", index);
-
- if (!(multipart->parts)) {
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::remove_part_at part list is void \n");
- return NULL;
- }
-
- parts_list = multipart->parts;
- part_to_remove = g_list_nth (parts_list, index);
- if (!part_to_remove) {
- CAMEL_LOG_WARNING ("CamelMultipart::remove_part_at : part to remove is NULL\n");
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::remove_part_at : index = %d, number of parts=%d\n",
- index, g_list_length (parts_list));
- return NULL;
- }
- removed_body_part = CAMEL_MIME_BODY_PART (part_to_remove->data);
-
- multipart->parts = g_list_remove_link (parts_list, part_to_remove);
- if (part_to_remove->data) gtk_object_unref (GTK_OBJECT (part_to_remove->data));
- g_list_free_1 (part_to_remove);
-
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Leaving remove_part_at\n");
- return removed_body_part;
-
-}
-
-CamelMimeBodyPart *
-camel_multipart_remove_part_at (CamelMultipart *multipart, guint index)
-{
- return CMP_CLASS (multipart)->remove_part_at (multipart, index);
-}
-
-
-static CamelMimeBodyPart *
-_get_part (CamelMultipart *multipart, guint index)
-{
- GList *part;
- if (!(multipart->parts)) {
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::get_part part list is void \n");
- return NULL;
- }
-
- part = g_list_nth (multipart->parts, index);
- if (part) return CAMEL_MIME_BODY_PART (part->data);
- else {
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::get_part part number %d not found\n", index);
- return NULL;
- }
-}
-
-CamelMimeBodyPart *
-camel_multipart_get_part (CamelMultipart *multipart, guint index)
-{
- return CMP_CLASS (multipart)->get_part (multipart, index);
-}
-
-
-static guint
-_get_number (CamelMultipart *multipart)
-{
- return g_list_length (multipart->parts);
-}
-
-guint
-camel_multipart_get_number (CamelMultipart *multipart)
-{
- return CMP_CLASS (multipart)->get_number (multipart);
-}
-
-
-static void
-_set_parent (CamelMultipart *multipart, CamelMimePart *parent)
-{
- multipart->parent = parent;
- if (parent) gtk_object_ref (GTK_OBJECT (parent));
-}
-
-void
-camel_multipart_set_parent (CamelMultipart *multipart, CamelMimePart *parent)
-{
- CMP_CLASS (multipart)->set_parent (multipart, parent);
-}
-
-
-static CamelMimePart *
-_get_parent (CamelMultipart *multipart)
-{
- return multipart->parent;
-}
-
-
-CamelMimePart *
-camel_multipart_get_parent (CamelMultipart *multipart)
-{
- return CMP_CLASS (multipart)->get_parent (multipart);
-}
-
-
-
-
-
-static void
-_set_boundary (CamelMultipart *multipart, gchar *boundary)
-{
- gmime_content_field_set_parameter (CAMEL_DATA_WRAPPER (multipart)->mime_type, "boundary", boundary);
-}
-
-void
-camel_multipart_set_boundary (CamelMultipart *multipart, gchar *boundary)
-{
- CMP_CLASS (multipart)->set_boundary (multipart, boundary);
-}
-
-
-static const gchar *
-_get_boundary (CamelMultipart *multipart)
-{
- const gchar *boundary;
- CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_get_boundary\n");
- if (!CAMEL_DATA_WRAPPER (multipart)->mime_type) {
- CAMEL_LOG_WARNING ("CamelMultipart::_get_boundary CAMEL_DATA_WRAPPER (multipart)->mime_type is NULL\n");
- return NULL;
- }
- boundary = gmime_content_field_get_parameter (CAMEL_DATA_WRAPPER (multipart)->mime_type, "boundary");
- CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::boundary found : \"%s\"\n", boundary);
- CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::_get_boundary\n");
- return boundary;
-}
-
-
-const gchar *
-camel_multipart_get_boundary (CamelMultipart *multipart)
-{
- return CMP_CLASS (multipart)->get_boundary (multipart);
-}
-
-
-struct _print_part_user_data {
- CamelStream *stream;
- const gchar *boundary;
-};
-
-
-
-static void
-_print_part (gpointer data, gpointer user_data)
-{
- CamelMimeBodyPart *body_part = CAMEL_MIME_BODY_PART (data);
- struct _print_part_user_data *ud = (struct _print_part_user_data *)user_data;
-
- if (ud->boundary) camel_stream_write_strings (ud->stream, "\n--", ud->boundary, "\n", NULL);
- else camel_stream_write_strings (ud->stream, "\n--\n", NULL);
- camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (body_part), ud->stream);
-
-
-}
-
-
-
-static void
-_write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- CamelMultipart *multipart = CAMEL_MULTIPART (data_wrapper);
- struct _print_part_user_data ud;
- const gchar *boundary;
-
- CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_write_to_stream entering\n");
- boundary = camel_multipart_get_boundary (multipart);
- CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_write_to_stream, boundary = %s\n", boundary);
- g_return_if_fail (boundary);
- ud.boundary = boundary;
- ud.stream = stream;
- if (multipart->preface) camel_stream_write_strings (stream, multipart->preface, NULL);
- g_list_foreach (multipart->parts, _print_part, (gpointer)&ud);
- camel_stream_write_strings (stream, "\n--", boundary, "--\n", NULL);
- if (multipart->postface) camel_stream_write_strings (stream, multipart->postface, NULL);
- CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::_write_to_stream leaving \n");
-}
-
-
-
-
-
-
-
-/**********************/
-/* new implementation */
-
-
-/**
- * _localize_part: localize one part in a multipart environement.
- * @stream: the stream to read the lines from.
- * @normal_boundary: end of part bundary.
- * @end_boundary: end of multipart boundary.
- * @end_position : end position of the mime part
- *
- * This routine is a bit special: RFC 2046 says that, in a multipart
- * environment, the last crlf before a boundary belongs to the boundary.
- * Thus, if there is no blank line before the boundary, the last crlf
- * of the last line of the part is removed.
- *
- * Return value: true if the last boundary element has been found or if no more data was available from the stream, flase otherwise
- **/
-
-static gboolean
-_localize_part (CamelStream *stream,
- gchar *normal_boundary,
- gchar *end_boundary,
- guint32 *end_position)
-{
- gchar *new_line = NULL;
- gboolean end_of_part = FALSE;
- gboolean last_part = FALSE;
- guint32 last_position;
-
- /* Note for future enhancements */
- /* RFC 2046 precises that when parsing the content of a multipart
- * element, the program should not think it will find the last boundary,
- * and in particular, the message could have been damaged during
- * transport, the parsing should still be OK */
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Entering _localize_part\n");
-
- g_assert (CAMEL_IS_SEEKABLE_STREAM (stream));
-
- last_position = camel_seekable_stream_get_current_position (CAMEL_SEEKABLE_STREAM (stream));
- new_line = gmime_read_line_from_stream (stream);
-
- while (new_line && !end_of_part && !last_part) {
- end_of_part = (strcmp (new_line, normal_boundary) == 0);
- last_part = (strcmp (new_line, end_boundary) == 0);
- if (!end_of_part && !last_part) {
-
- g_free (new_line);
-
- last_position =
- camel_seekable_stream_get_current_position (CAMEL_SEEKABLE_STREAM (stream));
-
- new_line = gmime_read_line_from_stream (stream);
- }
- }
-
- if (new_line) g_free (new_line);
- else last_part = TRUE;
-
- *end_position = last_position;
-
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart:: Leaving _localize_part\n");
- return (last_part);
-}
-
-
-
-
-static void
-_set_input_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- CamelMultipart *multipart = CAMEL_MULTIPART (data_wrapper);
- CamelSeekableStream *seekable_stream = CAMEL_SEEKABLE_STREAM (stream);
- const gchar *boundary;
- gchar *real_boundary_line;
- gchar *end_boundary_line;
- gboolean end_of_multipart;
- CamelMimeBodyPart *body_part;
- guint32 part_begining, part_end;
- CamelSeekableSubstream *body_part_input_stream;
- guint32 saved_stream_pos;
-
-
- CAMEL_LOG_FULL_DEBUG ("Entering CamelMultipart::_set_input_stream\n");
-
- /* call parent class implementation */
- parent_class->set_input_stream (data_wrapper, stream);
-
- boundary = camel_multipart_get_boundary (multipart);
- g_return_if_fail (boundary);
-
- real_boundary_line = g_strdup_printf ("--%s", boundary);
- end_boundary_line = g_strdup_printf ("--%s--", boundary);
-
-
- /* read the prefix if any */
- end_of_multipart = _localize_part (stream,
- real_boundary_line,
- end_boundary_line,
- &part_end);
- if (multipart->preface) g_free (multipart->preface);
-
- /* if ( (new_part->str)[0] != '\0') multipart->preface = g_strdup (new_part->str); */
-
- /* read all the real parts */
- while (!end_of_multipart) {
- /* determine the position of the begining of the part */
- part_begining = camel_seekable_stream_get_current_position (seekable_stream);
-
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::set_input_stream, detected a new part\n");
- body_part = camel_mime_body_part_new ();
-
- end_of_multipart = _localize_part (stream,
- real_boundary_line,
- end_boundary_line,
- &part_end);
- body_part_input_stream =
- camel_seekable_substream_new_with_seekable_stream_and_bounds (seekable_stream,
- part_begining,
- part_end);
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::set_input_stream, use a substream,\n"
- "\tbegining = %d\n"
- "\tend = %d\n",part_begining, part_end);
-
- /* the seekable substream may change the position of the stream
- so we must save it before calling set_input_stream */
- saved_stream_pos = camel_seekable_stream_get_current_position (seekable_stream);
-
- camel_data_wrapper_set_input_stream (CAMEL_DATA_WRAPPER (body_part),
- CAMEL_STREAM (body_part_input_stream));
- CAMEL_LOG_FULL_DEBUG ("CamelMultipart::set_input_stream,"
- "new body part has input stream : %p\n", body_part_input_stream);
-
- /* restore the stream position */
- camel_seekable_stream_seek (seekable_stream, saved_stream_pos, CAMEL_STREAM_SET);
-
- /* add the body part to the multipart object */
- camel_multipart_add_part (multipart, body_part);
-
- }
-
- /* g_string_assign (new_part, ""); */
- /* _localize_part (new_part, stream, real_boundary_line, end_boundary_line); */
-
- if (multipart->postface) g_free (multipart->postface);
- /* if ( (new_part->str)[0] != '\0') multipart->postface = g_strdup (new_part->str); */
-
- /* g_string_free (new_part, TRUE); */
-
- g_free (real_boundary_line);
- g_free (end_boundary_line);
- CAMEL_LOG_FULL_DEBUG ("Leaving CamelMultipart::_set_input_stream\n");
-}