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-rw-r--r--camel/camel-multipart.c488
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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 */
-
-#warning This should be a mostly abstract class, but it is not!
-
-/*
- *
- * Author :
- * Bertrand Guiheneuf <bertrand@helixcode.com>
- *
- * Copyright 1999, 2000 Helix Code, Inc. (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 "gmime-content-field.h"
-#include "camel-stream-mem.h"
-#include "camel-multipart.h"
-#include "camel-mime-part.h"
-#include "camel-exception.h"
-#include "md5-utils.h"
-
-#include <unistd.h> /* for getpid */
-#include <time.h> /* for time */
-
-#define d(x)
-
-static void add_part (CamelMultipart *multipart,
- CamelMimePart *part);
-static void add_part_at (CamelMultipart *multipart,
- CamelMimePart *part,
- guint index);
-static void remove_part (CamelMultipart *multipart,
- CamelMimePart *part);
-static CamelMimePart * remove_part_at (CamelMultipart *multipart,
- guint index);
-static CamelMimePart * get_part (CamelMultipart *multipart,
- guint index);
-static guint get_number (CamelMultipart *multipart);
-static void set_boundary (CamelMultipart *multipart,
- gchar *boundary);
-static const gchar * get_boundary (CamelMultipart *multipart);
-static int write_to_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_boundary = set_boundary;
- camel_multipart_class->get_boundary = get_boundary;
-
- /* virtual method overload */
- camel_data_wrapper_class->write_to_stream = write_to_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/mixed");
- 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 *part = GTK_OBJECT (data);
-
- gtk_object_unref (part);
-}
-
-static void
-finalize (GtkObject *object)
-{
- CamelMultipart *multipart = CAMEL_MULTIPART (object);
-
- 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_multipart_new:
- *
- * Create a new CamelMultipart object.
- *
- * Return value: a new CamelMultipart
- **/
-CamelMultipart *
-camel_multipart_new (void)
-{
- CamelMultipart *multipart;
-
- multipart = (CamelMultipart *)gtk_type_new (CAMEL_MULTIPART_TYPE);
- multipart->preface = NULL;
- multipart->postface = NULL;
-
- return multipart;
-}
-
-
-static void
-add_part (CamelMultipart *multipart, CamelMimePart *part)
-{
- multipart->parts = g_list_append (multipart->parts, part);
- gtk_object_ref (GTK_OBJECT (part));
-}
-
-/**
- * camel_multipart_add_part:
- * @multipart: a CamelMultipart
- * @part: the part to add
- *
- * Appends the part to the multipart object.
- **/
-void
-camel_multipart_add_part (CamelMultipart *multipart, CamelMimePart *part)
-{
- g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
- g_return_if_fail (CAMEL_IS_MIME_PART (part));
-
- CMP_CLASS (multipart)->add_part (multipart, part);
-}
-
-
-static void
-add_part_at (CamelMultipart *multipart, CamelMimePart *part, guint index)
-{
- multipart->parts = g_list_insert (multipart->parts, part, index);
- gtk_object_ref (GTK_OBJECT (part));
-}
-
-/**
- * camel_multipart_add_part_at:
- * @multipart: a CamelMultipart
- * @part: the part to add
- * @index: index to add the multipart at
- *
- * Adds the part to the multipart object after the @index'th
- * element. If @index is greater than the number of parts, it is
- * equivalent to camel_multipart_add_part().
- **/
-void
-camel_multipart_add_part_at (CamelMultipart *multipart,
- CamelMimePart *part, guint index)
-{
- g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
- g_return_if_fail (CAMEL_IS_MIME_PART (part));
-
- CMP_CLASS (multipart)->add_part_at (multipart, part, index);
-}
-
-
-static void
-remove_part (CamelMultipart *multipart, CamelMimePart *part)
-{
- if (!multipart->parts)
- return;
- multipart->parts = g_list_remove (multipart->parts, part);
- gtk_object_unref (GTK_OBJECT (part));
-}
-
-/**
- * camel_multipart_remove_part:
- * @multipart: a CamelMultipart
- * @part: the part to remove
- *
- * Removes @part from @multipart.
- **/
-void
-camel_multipart_remove_part (CamelMultipart *multipart,
- CamelMimePart *part)
-{
- g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
- g_return_if_fail (CAMEL_IS_MIME_PART (part));
-
- CMP_CLASS (multipart)->remove_part (multipart, part);
-}
-
-
-static CamelMimePart *
-remove_part_at (CamelMultipart *multipart, guint index)
-{
- GList *parts_list;
- GList *part_to_remove;
- CamelMimePart *removed_part;
-
- if (!(multipart->parts))
- return NULL;
-
- parts_list = multipart->parts;
- part_to_remove = g_list_nth (parts_list, index);
- if (!part_to_remove) {
- g_warning ("CamelMultipart::remove_part_at: "
- "part to remove is NULL\n");
- return NULL;
- }
- removed_part = CAMEL_MIME_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);
-
- return removed_part;
-}
-
-/**
- * camel_multipart_remove_part_at:
- * @multipart: a CamelMultipart
- * @index: a zero-based index indicating the part to remove
- *
- * Remove the indicated part from the multipart object.
- *
- * Return value: the removed part. Note that it is gtk_object_unref()ed
- * before being returned, which may cause it to be destroyed.
- **/
-CamelMimePart *
-camel_multipart_remove_part_at (CamelMultipart *multipart, guint index)
-{
- g_return_val_if_fail (CAMEL_IS_MULTIPART (multipart), NULL);
-
- return CMP_CLASS (multipart)->remove_part_at (multipart, index);
-}
-
-
-static CamelMimePart *
-get_part (CamelMultipart *multipart, guint index)
-{
- GList *part;
-
- if (!(multipart->parts))
- return NULL;
-
- part = g_list_nth (multipart->parts, index);
- if (part)
- return CAMEL_MIME_PART (part->data);
- else
- return NULL;
-}
-
-/**
- * camel_multipart_get_part:
- * @multipart: a CamelMultipart
- * @index: a zero-based index indicating the part to get
- *
- * Return value: the indicated subpart, or %NULL
- **/
-CamelMimePart *
-camel_multipart_get_part (CamelMultipart *multipart, guint index)
-{
- g_return_val_if_fail (CAMEL_IS_MULTIPART (multipart), NULL);
-
- return CMP_CLASS (multipart)->get_part (multipart, index);
-}
-
-
-static guint
-get_number (CamelMultipart *multipart)
-{
- return g_list_length (multipart->parts);
-}
-
-/**
- * camel_multipart_get_number:
- * @multipart: a CamelMultipart
- *
- * Return value: the number of subparts in @multipart
- **/
-guint
-camel_multipart_get_number (CamelMultipart *multipart)
-{
- g_return_val_if_fail (CAMEL_IS_MULTIPART (multipart), 0);
-
- return CMP_CLASS (multipart)->get_number (multipart);
-}
-
-
-static void
-set_boundary (CamelMultipart *multipart, gchar *boundary)
-{
- CamelDataWrapper *cdw = CAMEL_DATA_WRAPPER (multipart);
- char *bgen, digest[16], bbuf[27], *p;
- int state, save;
-
- g_return_if_fail (cdw->mime_type != NULL);
-
- if (!boundary) {
- /* Generate a fairly random boundary string. */
- bgen = g_strdup_printf ("%p:%lu:%lu", multipart,
- (unsigned long) getpid(),
- (unsigned long) time(0));
- md5_get_digest (bgen, strlen (bgen), digest);
- g_free (bgen);
- strcpy (bbuf, "=-");
- p = bbuf + 2;
- state = save = 0;
- p += base64_encode_step (digest, 16, p, &state, &save);
- *p = '\0';
-
- boundary = bbuf;
- }
-
- gmime_content_field_set_parameter (cdw->mime_type, "boundary",
- boundary);
-}
-
-/**
- * camel_multipart_set_boundary:
- * @multipart: a CamelMultipart
- * @boundary: the message boundary, or %NULL
- *
- * Sets the message boundary for @multipart to @boundary. This should
- * be a string which does not occur anywhere in any of @multipart's
- * subparts. If @boundary is %NULL, a randomly-generated boundary will
- * be used.
- **/
-void
-camel_multipart_set_boundary (CamelMultipart *multipart, gchar *boundary)
-{
- g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
-
- CMP_CLASS (multipart)->set_boundary (multipart, boundary);
-}
-
-
-static const gchar *
-get_boundary (CamelMultipart *multipart)
-{
- CamelDataWrapper *cdw = CAMEL_DATA_WRAPPER (multipart);
-
- g_return_val_if_fail (cdw->mime_type != NULL, NULL);
- return gmime_content_field_get_parameter (cdw->mime_type, "boundary");
-}
-
-/**
- * camel_multipart_get_boundary:
- * @multipart: a CamelMultipart
- *
- * Return value: @multipart's message boundary
- **/
-const gchar *
-camel_multipart_get_boundary (CamelMultipart *multipart)
-{
- return CMP_CLASS (multipart)->get_boundary (multipart);
-}
-
-/* this is MIME specific, doesn't belong here really */
-static int
-write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- CamelMultipart *multipart = CAMEL_MULTIPART (data_wrapper);
- const gchar *boundary;
- int total = 0;
- int count;
- GList *node;
-
- /* get the bundary text */
- boundary = camel_multipart_get_boundary (multipart);
-
- /* we cannot write a multipart without a boundary string */
- g_return_val_if_fail (boundary && *boundary, -1);
-
- /*
- * write the preface text (usually something like
- * "This is a mime message, if you see this, then
- * your mail client probably doesn't support ...."
- */
- if (multipart->preface) {
- count = camel_stream_write_string (stream, multipart->preface);
- if (count == -1)
- return -1;
- total += count;
- }
-
- /*
- * Now, write all the parts, separated by the boundary
- * delimiter
- */
- node = multipart->parts;
- while (node) {
- count = camel_stream_printf (stream, "\n--%s\n", boundary);
- if (count == -1)
- return -1;
- total += count;
-
- count = camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (node->data), stream);
- if (count == -1)
- return -1;
- total += count;
- node = node->next;
- }
-
- /* write the terminating boudary delimiter */
- count = camel_stream_printf (stream, "\n--%s--\n", boundary);
- if (count == -1)
- return -1;
- total += count;
-
- /* and finally the postface */
- if (multipart->postface) {
- count = camel_stream_write_string (stream, multipart->postface);
- if (count == -1)
- return -1;
- total += count;
- }
-
- return total;
-}
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