1 /* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
2 /* camel-multipart.c : Abstract class for a multipart */
6 * Bertrand Guiheneuf <bertrand@helixcode.com>
8 * Copyright 1999, 2000 Ximian, Inc. (www.ximian.com)
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of version 2 of the GNU Lesser General Public
12 * License as published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
30 #include <string.h> /* strlen() */
31 #include <time.h> /* for time */
32 #include <unistd.h> /* for getpid */
34 #include <libedataserver/md5-utils.h>
36 #include "camel-exception.h"
37 #include "camel-mime-part.h"
38 #include "camel-multipart.h"
39 #include "camel-stream-mem.h"
43 static gboolean is_offline (CamelDataWrapper *data_wrapper);
44 static void add_part (CamelMultipart *multipart,
46 static void add_part_at (CamelMultipart *multipart,
49 static void remove_part (CamelMultipart *multipart,
51 static CamelMimePart * remove_part_at (CamelMultipart *multipart,
53 static CamelMimePart * get_part (CamelMultipart *multipart,
55 static guint get_number (CamelMultipart *multipart);
56 static void set_boundary (CamelMultipart *multipart,
57 const char *boundary);
58 static const gchar * get_boundary (CamelMultipart *multipart);
59 static ssize_t write_to_stream (CamelDataWrapper *data_wrapper,
61 static void unref_part (gpointer data, gpointer user_data);
63 static int construct_from_parser(CamelMultipart *multipart, struct _CamelMimeParser *mp);
65 static CamelDataWrapperClass *parent_class = NULL;
69 /* Returns the class for a CamelMultipart */
70 #define CMP_CLASS(so) CAMEL_MULTIPART_CLASS (CAMEL_OBJECT_GET_CLASS(so))
72 /* Returns the class for a CamelDataWrapper */
73 #define CDW_CLASS(so) CAMEL_DATA_WRAPPER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
77 camel_multipart_class_init (CamelMultipartClass *camel_multipart_class)
79 CamelDataWrapperClass *camel_data_wrapper_class =
80 CAMEL_DATA_WRAPPER_CLASS (camel_multipart_class);
82 parent_class = (CamelDataWrapperClass *) camel_data_wrapper_get_type ();
84 /* virtual method definition */
85 camel_multipart_class->add_part = add_part;
86 camel_multipart_class->add_part_at = add_part_at;
87 camel_multipart_class->remove_part = remove_part;
88 camel_multipart_class->remove_part_at = remove_part_at;
89 camel_multipart_class->get_part = get_part;
90 camel_multipart_class->get_number = get_number;
91 camel_multipart_class->set_boundary = set_boundary;
92 camel_multipart_class->get_boundary = get_boundary;
93 camel_multipart_class->construct_from_parser = construct_from_parser;
95 /* virtual method overload */
96 camel_data_wrapper_class->write_to_stream = write_to_stream;
97 camel_data_wrapper_class->decode_to_stream = write_to_stream;
98 camel_data_wrapper_class->is_offline = is_offline;
102 camel_multipart_init (gpointer object, gpointer klass)
104 CamelMultipart *multipart = CAMEL_MULTIPART (object);
106 camel_data_wrapper_set_mime_type (CAMEL_DATA_WRAPPER (multipart),
108 multipart->preface = NULL;
109 multipart->postface = NULL;
113 camel_multipart_finalize (CamelObject *object)
115 CamelMultipart *multipart = CAMEL_MULTIPART (object);
117 g_list_foreach (multipart->parts, unref_part, NULL);
119 /*if (multipart->boundary)
120 g_free (multipart->boundary);*/
121 if (multipart->preface)
122 g_free (multipart->preface);
123 if (multipart->postface)
124 g_free (multipart->postface);
129 camel_multipart_get_type (void)
131 static CamelType camel_multipart_type = CAMEL_INVALID_TYPE;
133 if (camel_multipart_type == CAMEL_INVALID_TYPE) {
134 camel_multipart_type = camel_type_register (camel_data_wrapper_get_type (), "CamelMultipart",
135 sizeof (CamelMultipart),
136 sizeof (CamelMultipartClass),
137 (CamelObjectClassInitFunc) camel_multipart_class_init,
139 (CamelObjectInitFunc) camel_multipart_init,
140 (CamelObjectFinalizeFunc) camel_multipart_finalize);
143 return camel_multipart_type;
147 unref_part (gpointer data, gpointer user_data)
149 CamelObject *part = data;
151 camel_object_unref (part);
155 * camel_multipart_new:
157 * Create a new #CamelMultipart object.
159 * Returns a new #CamelMultipart object
162 camel_multipart_new (void)
164 CamelMultipart *multipart;
166 multipart = (CamelMultipart *)camel_object_new (CAMEL_MULTIPART_TYPE);
167 multipart->preface = NULL;
168 multipart->postface = NULL;
175 add_part (CamelMultipart *multipart, CamelMimePart *part)
177 multipart->parts = g_list_append (multipart->parts, part);
178 camel_object_ref (part);
183 * camel_multipart_add_part:
184 * @multipart: a #CamelMultipart object
185 * @part: a #CamelMimePart to add
187 * Appends the part to the multipart object.
190 camel_multipart_add_part (CamelMultipart *multipart, CamelMimePart *part)
192 g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
193 g_return_if_fail (CAMEL_IS_MIME_PART (part));
195 CMP_CLASS (multipart)->add_part (multipart, part);
200 add_part_at (CamelMultipart *multipart, CamelMimePart *part, guint index)
202 multipart->parts = g_list_insert (multipart->parts, part, index);
203 camel_object_ref (part);
207 * camel_multipart_add_part_at:
208 * @multipart: a #CamelMultipart object
209 * @part: a #CamelMimePart to add
210 * @index: index to add the multipart at
212 * Adds the part to the multipart object after the @index'th
213 * element. If @index is greater than the number of parts, it is
214 * equivalent to #camel_multipart_add_part.
217 camel_multipart_add_part_at (CamelMultipart *multipart,
218 CamelMimePart *part, guint index)
220 g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
221 g_return_if_fail (CAMEL_IS_MIME_PART (part));
223 CMP_CLASS (multipart)->add_part_at (multipart, part, index);
228 remove_part (CamelMultipart *multipart, CamelMimePart *part)
230 if (!multipart->parts)
232 multipart->parts = g_list_remove (multipart->parts, part);
233 camel_object_unref (part);
237 * camel_multipart_remove_part:
238 * @multipart: a #CamelMultipart object
239 * @part: a #CamelMimePart to remove
241 * Removes @part from @multipart.
244 camel_multipart_remove_part (CamelMultipart *multipart,
247 g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
248 g_return_if_fail (CAMEL_IS_MIME_PART (part));
250 CMP_CLASS (multipart)->remove_part (multipart, part);
254 static CamelMimePart *
255 remove_part_at (CamelMultipart *multipart, guint index)
258 GList *part_to_remove;
259 CamelMimePart *removed_part;
261 if (!(multipart->parts))
264 parts_list = multipart->parts;
265 part_to_remove = g_list_nth (parts_list, index);
266 if (!part_to_remove) {
267 g_warning ("CamelMultipart::remove_part_at: "
268 "part to remove is NULL\n");
271 removed_part = CAMEL_MIME_PART (part_to_remove->data);
273 multipart->parts = g_list_remove_link (parts_list, part_to_remove);
274 if (part_to_remove->data)
275 camel_object_unref (part_to_remove->data);
276 g_list_free_1 (part_to_remove);
282 * camel_multipart_remove_part_at:
283 * @multipart: a #CamelMultipart object
284 * @index: a zero-based index indicating the part to remove
286 * Remove the indicated part from the multipart object.
288 * Returns the removed part. Note that it is #camel_object_unref'ed
289 * before being returned, which may cause it to be destroyed.
292 camel_multipart_remove_part_at (CamelMultipart *multipart, guint index)
294 g_return_val_if_fail (CAMEL_IS_MULTIPART (multipart), NULL);
296 return CMP_CLASS (multipart)->remove_part_at (multipart, index);
300 static CamelMimePart *
301 get_part (CamelMultipart *multipart, guint index)
305 if (!(multipart->parts))
308 part = g_list_nth (multipart->parts, index);
310 return CAMEL_MIME_PART (part->data);
316 * camel_multipart_get_part:
317 * @multipart: a #CamelMultipart object
318 * @index: a zero-based index indicating the part to get
320 * Returns the indicated subpart, or %NULL
323 camel_multipart_get_part (CamelMultipart *multipart, guint index)
325 g_return_val_if_fail (CAMEL_IS_MULTIPART (multipart), NULL);
327 return CMP_CLASS (multipart)->get_part (multipart, index);
332 get_number (CamelMultipart *multipart)
334 return g_list_length (multipart->parts);
338 * camel_multipart_get_number:
339 * @multipart: a #CamelMultipart object
341 * Returns the number of subparts in @multipart
344 camel_multipart_get_number (CamelMultipart *multipart)
346 g_return_val_if_fail (CAMEL_IS_MULTIPART (multipart), 0);
348 return CMP_CLASS (multipart)->get_number (multipart);
353 set_boundary (CamelMultipart *multipart, const char *boundary)
355 CamelDataWrapper *cdw = CAMEL_DATA_WRAPPER (multipart);
356 char *bgen, digest[16], bbuf[27], *p;
359 g_return_if_fail (cdw->mime_type != NULL);
362 /* Generate a fairly random boundary string. */
363 bgen = g_strdup_printf ("%p:%lu:%lu", multipart,
364 (unsigned long) getpid(),
365 (unsigned long) time(0));
366 md5_get_digest (bgen, strlen (bgen), digest);
371 p += camel_base64_encode_step (digest, 16, FALSE, p, &state, &save);
377 camel_content_type_set_param (cdw->mime_type, "boundary", boundary);
381 * camel_multipart_set_boundary:
382 * @multipart: a #CamelMultipart object
383 * @boundary: the message boundary, or %NULL
385 * Sets the message boundary for @multipart to @boundary. This should
386 * be a string which does not occur anywhere in any of @multipart's
387 * subparts. If @boundary is %NULL, a randomly-generated boundary will
391 camel_multipart_set_boundary (CamelMultipart *multipart, const char *boundary)
393 g_return_if_fail (CAMEL_IS_MULTIPART (multipart));
395 CMP_CLASS (multipart)->set_boundary (multipart, boundary);
400 get_boundary (CamelMultipart *multipart)
402 CamelDataWrapper *cdw = CAMEL_DATA_WRAPPER (multipart);
404 g_return_val_if_fail (cdw->mime_type != NULL, NULL);
405 return camel_content_type_param (cdw->mime_type, "boundary");
409 * camel_multipart_get_boundary:
410 * @multipart: a #CamelMultipart object
412 * Returns the boundary
415 camel_multipart_get_boundary (CamelMultipart *multipart)
417 return CMP_CLASS (multipart)->get_boundary (multipart);
421 is_offline (CamelDataWrapper *data_wrapper)
423 CamelMultipart *multipart = CAMEL_MULTIPART (data_wrapper);
425 CamelDataWrapper *part;
427 if (parent_class->is_offline (data_wrapper))
429 for (node = multipart->parts; node; node = node->next) {
431 if (camel_data_wrapper_is_offline (part))
438 /* this is MIME specific, doesn't belong here really */
440 write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream)
442 CamelMultipart *multipart = CAMEL_MULTIPART (data_wrapper);
443 const gchar *boundary;
448 /* get the bundary text */
449 boundary = camel_multipart_get_boundary (multipart);
451 /* we cannot write a multipart without a boundary string */
452 g_return_val_if_fail (boundary, -1);
455 * write the preface text (usually something like
456 * "This is a mime message, if you see this, then
457 * your mail client probably doesn't support ...."
459 if (multipart->preface) {
460 count = camel_stream_write_string (stream, multipart->preface);
467 * Now, write all the parts, separated by the boundary
470 node = multipart->parts;
472 count = camel_stream_printf (stream, "\n--%s\n", boundary);
477 count = camel_data_wrapper_write_to_stream (CAMEL_DATA_WRAPPER (node->data), stream);
484 /* write the terminating boudary delimiter */
485 count = camel_stream_printf (stream, "\n--%s--\n", boundary);
490 /* and finally the postface */
491 if (multipart->postface) {
492 count = camel_stream_write_string (stream, multipart->postface);
502 * camel_multipart_set_preface:
503 * @multipart: a #CamelMultipart object
504 * @preface: the multipart preface
506 * Set the preface text for this multipart. Will be written out infront
507 * of the multipart. This text should only include US-ASCII strings, and
508 * be relatively short, and will be ignored by any MIME mail client.
511 camel_multipart_set_preface(CamelMultipart *multipart, const char *preface)
513 if (multipart->preface != preface) {
514 g_free(multipart->preface);
516 multipart->preface = g_strdup(preface);
518 multipart->preface = NULL;
523 * camel_multipart_set_postface:
524 * @multipart: a #CamelMultipart object
525 * @postface: multipat postface
527 * Set the postfix text for this multipart. Will be written out after
528 * the last boundary of the multipart, and ignored by any MIME mail
531 * Generally postface texts should not be sent with multipart messages.
534 camel_multipart_set_postface(CamelMultipart *multipart, const char *postface)
536 if (multipart->postface != postface) {
537 g_free(multipart->postface);
539 multipart->postface = g_strdup(postface);
541 multipart->postface = NULL;
546 construct_from_parser(CamelMultipart *multipart, struct _CamelMimeParser *mp)
549 CamelContentType *content_type;
550 CamelMimePart *bodypart;
554 g_assert(camel_mime_parser_state(mp) == CAMEL_MIME_PARSER_STATE_MULTIPART);
556 /* FIXME: we should use a came-mime-mutlipart, not jsut a camel-multipart, but who cares */
557 d(printf("Creating multi-part\n"));
559 content_type = camel_mime_parser_content_type(mp);
560 camel_multipart_set_boundary(multipart,
561 camel_content_type_param(content_type, "boundary"));
563 while (camel_mime_parser_step(mp, &buf, &len) != CAMEL_MIME_PARSER_STATE_MULTIPART_END) {
564 camel_mime_parser_unstep(mp);
565 bodypart = camel_mime_part_new();
566 camel_mime_part_construct_from_parser(bodypart, mp);
567 camel_multipart_add_part(multipart, bodypart);
568 camel_object_unref((CamelObject *)bodypart);
571 /* these are only return valid data in the MULTIPART_END state */
572 camel_multipart_set_preface(multipart, camel_mime_parser_preface (mp));
573 camel_multipart_set_postface(multipart, camel_mime_parser_postface (mp));
575 err = camel_mime_parser_errno(mp);
585 * camel_multipart_construct_from_parser:
586 * @multipart: a #CamelMultipart object
587 * @parser: a #CamelMimeParser object
589 * Construct a multipart from a parser.
591 * Returns %0 on success or %-1 on fail
594 camel_multipart_construct_from_parser(CamelMultipart *multipart, struct _CamelMimeParser *mp)
596 g_return_val_if_fail(CAMEL_IS_MULTIPART(multipart), -1);
598 return CMP_CLASS(multipart)->construct_from_parser(multipart, mp);