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-rw-r--r--camel/camel-mime-part-utils.c243
1 files changed, 0 insertions, 243 deletions
diff --git a/camel/camel-mime-part-utils.c b/camel/camel-mime-part-utils.c
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--- a/camel/camel-mime-part-utils.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */
-/* camel-mime-part-utils : Utility for mime parsing and so on
- *
- * Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
- * Michael Zucchi <notzed@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 <string.h>
-#include "string-utils.h"
-#include "camel-mime-part-utils.h"
-#include "camel-mime-message.h"
-#include "camel-multipart.h"
-#include "camel-seekable-substream.h"
-#include "camel-stream-filter.h"
-#include "camel-stream-mem.h"
-#include "camel-mime-filter-basic.h"
-#include "camel-mime-filter-charset.h"
-#include "camel-mime-filter-crlf.h"
-
-#define d(x) /*(printf("%s(%d): ", __FILE__, __LINE__),(x))*/
-
-/* simple data wrapper */
-static void
-simple_data_wrapper_construct_from_parser(CamelDataWrapper *dw, CamelMimeParser *mp)
-{
- GByteArray *buffer;
- char *buf;
- int len;
- off_t start = 0, end;
- CamelMimeFilter *fdec = NULL, *fcrlf = NULL, *fch = NULL;
- struct _header_content_type *ct;
- int decid=-1, crlfid=-1, chrid=-1;
- CamelStream *source;
- CamelSeekableStream *seekable_source = NULL;
- char *encoding;
-
- d(printf("constructing data-wrapper\n"));
-
- /* Ok, try and be smart. If we're storing a small message (typical) convert it,
- and store it in memory as we parse it ... if not, throw away the conversion
- and scan till the end ... */
-
- /* if we can't seek, dont have a stream/etc, then we must cache it */
- source = camel_mime_parser_stream(mp);
- if (source) {
- camel_object_ref((CamelObject *)source);
- if (CAMEL_IS_SEEKABLE_STREAM (source)) {
- seekable_source = CAMEL_SEEKABLE_STREAM (source);
- }
- }
-
- /* first, work out conversion, if any, required, we dont care about what we dont know about */
- encoding = header_content_encoding_decode(camel_mime_parser_header(mp, "content-transfer-encoding", NULL));
- if (encoding) {
- if (!strcasecmp(encoding, "base64")) {
- d(printf("Adding base64 decoder ...\n"));
- fdec = (CamelMimeFilter *)camel_mime_filter_basic_new_type(CAMEL_MIME_FILTER_BASIC_BASE64_DEC);
- decid = camel_mime_parser_filter_add(mp, fdec);
- } else if (!strcasecmp(encoding, "quoted-printable")) {
- d(printf("Adding quoted-printable decoder ...\n"));
- fdec = (CamelMimeFilter *)camel_mime_filter_basic_new_type(CAMEL_MIME_FILTER_BASIC_QP_DEC);
- decid = camel_mime_parser_filter_add(mp, fdec);
- }
- g_free(encoding);
- }
-
- /* If we're doing text, we also need to do CRLF->LF and may have to convert it to UTF8 as well. */
- ct = camel_mime_parser_content_type(mp);
- if (header_content_type_is(ct, "text", "*")) {
- const char *charset = header_content_type_param(ct, "charset");
-
- if (fdec) {
- d(printf("Adding CRLF conversion filter\n"));
- fcrlf = (CamelMimeFilter *)camel_mime_filter_crlf_new(CAMEL_MIME_FILTER_CRLF_DECODE,
- CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
- crlfid = camel_mime_parser_filter_add(mp, fcrlf);
- }
-
- if (charset!=NULL
- && !(strcasecmp(charset, "us-ascii")==0
- || strcasecmp(charset, "utf-8")==0)) {
- d(printf("Adding conversion filter from %s to UTF-8\n", charset));
- fch = (CamelMimeFilter *)camel_mime_filter_charset_new_convert(charset, "UTF-8");
- if (fch) {
- chrid = camel_mime_parser_filter_add(mp, (CamelMimeFilter *)fch);
- } else {
- g_warning("Cannot convert '%s' to 'UTF-8', message display may be corrupt", charset);
- }
- }
-
- }
-
- buffer = g_byte_array_new();
-
- if (seekable_source /* !cache */) {
- start = camel_mime_parser_tell(mp) + seekable_source->bound_start;
- }
- while ( camel_mime_parser_step(mp, &buf, &len) != HSCAN_BODY_END ) {
- d(printf("appending o/p data: %d: %.*s\n", len, len, buf));
- if (buffer) {
- if (buffer->len > 20480 && seekable_source) {
- /* is this a 'big' message? Yes? We dont want to convert it all then.*/
- camel_mime_parser_filter_remove(mp, decid);
- camel_mime_parser_filter_remove(mp, chrid);
- decid = -1;
- chrid = -1;
- g_byte_array_free(buffer, TRUE);
- buffer = NULL;
- } else {
- g_byte_array_append(buffer, buf, len);
- }
- }
- }
-
- if (buffer) {
- CamelStream *mem;
-
- d(printf("Small message part, kept in memory!\n"));
-
- mem = camel_stream_mem_new_with_byte_array(buffer);
- camel_data_wrapper_construct_from_stream (dw, mem);
- camel_object_unref ((CamelObject *)mem);
- } else {
- CamelStream *sub;
- CamelStreamFilter *filter;
-
- d(printf("Big message part, left on disk ...\n"));
-
- end = camel_mime_parser_tell(mp) + seekable_source->bound_start;
- sub = camel_seekable_substream_new_with_seekable_stream_and_bounds (seekable_source, start, end);
- if (fdec || fch) {
- filter = camel_stream_filter_new_with_stream(sub);
- if (fdec) {
- camel_mime_filter_reset(fdec);
- camel_stream_filter_add(filter, fdec);
- }
- if (fcrlf) {
- camel_mime_filter_reset(fcrlf);
- camel_stream_filter_add(filter, fcrlf);
- }
- if (fch) {
- camel_mime_filter_reset(fch);
- camel_stream_filter_add(filter, fch);
- }
- camel_data_wrapper_construct_from_stream (dw, (CamelStream *)filter);
- camel_object_unref ((CamelObject *)filter);
- } else {
- camel_data_wrapper_construct_from_stream (dw, sub);
- }
- camel_object_unref ((CamelObject *)sub);
- }
-
- camel_mime_parser_filter_remove(mp, decid);
- camel_mime_parser_filter_remove(mp, crlfid);
- camel_mime_parser_filter_remove(mp, chrid);
-
- if (fdec)
- camel_object_unref((CamelObject *)fdec);
- if (fcrlf)
- camel_object_unref((CamelObject *)fcrlf);
- if (fch)
- camel_object_unref((CamelObject *)fch);
- if (source)
- camel_object_unref((CamelObject *)source);
-
-}
-
-/* This replaces the data wrapper repository ... and/or could be replaced by it? */
-void
-camel_mime_part_construct_content_from_parser(CamelMimePart *dw, CamelMimeParser *mp)
-{
- CamelDataWrapper *content = NULL;
- char *buf;
- int len;
-
- switch (camel_mime_parser_state(mp)) {
- case HSCAN_HEADER:
- d(printf("Creating body part\n"));
- content = camel_data_wrapper_new();
- simple_data_wrapper_construct_from_parser(content, mp);
- break;
- case HSCAN_MESSAGE:
- d(printf("Creating message part\n"));
- content = (CamelDataWrapper *)camel_mime_message_new();
- camel_mime_part_construct_from_parser((CamelMimePart *)content, mp);
- break;
- case HSCAN_MULTIPART: {
- CamelDataWrapper *bodypart;
-
-#ifndef NO_WARNINGS
-#warning This should use a camel-mime-multipart
-#endif
- d(printf("Creating multi-part\n"));
- content = (CamelDataWrapper *)camel_multipart_new();
-
- /* FIXME: use the real boundary? */
- camel_multipart_set_boundary((CamelMultipart *)content, NULL);
- while (camel_mime_parser_step(mp, &buf, &len) != HSCAN_MULTIPART_END) {
- camel_mime_parser_unstep(mp);
- bodypart = (CamelDataWrapper *)camel_mime_part_new();
- camel_mime_part_construct_from_parser((CamelMimePart *)bodypart, mp);
- camel_multipart_add_part((CamelMultipart *)content, (CamelMimePart *)bodypart);
- camel_object_unref ((CamelObject *)bodypart);
- }
-
- /* these are only return valid data in the MULTIPART_END state */
- camel_multipart_set_preface((CamelMultipart *)content, camel_mime_parser_preface(mp));
- camel_multipart_set_postface((CamelMultipart *)content, camel_mime_parser_postface(mp));
-
- d(printf("Created multi-part\n"));
- break; }
- default:
- g_warning("Invalid state encountered???: %d", camel_mime_parser_state(mp));
- }
- if (content) {
-#ifndef NO_WARNINGS
-#warning there just has got to be a better way ... to transfer the mime-type to the datawrapper
-#endif
- /* would you believe you have to set this BEFORE you set the content object??? oh my god !!!! */
- camel_data_wrapper_set_mime_type_field (content,
- camel_mime_part_get_content_type ((CamelMimePart *)dw));
- camel_medium_set_content_object((CamelMedium *)dw, content);
- camel_object_unref ((CamelObject *)content);
- }
-}
-