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-rw-r--r--camel/camel-mime-part.c740
1 files changed, 0 insertions, 740 deletions
diff --git a/camel/camel-mime-part.c b/camel/camel-mime-part.c
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--- a/camel/camel-mime-part.c
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-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */
-/* camelMimePart.c : Abstract class for a mime_part */
-
-/*
- * 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 "camel-mime-part.h"
-#include <stdio.h>
-#include "string-utils.h"
-#include "hash-table-utils.h"
-#include "camel-mime-part-utils.h"
-#include <ctype.h>
-#include "camel-mime-parser.h"
-#include "camel-stream-mem.h"
-#include "camel-stream-filter.h"
-#include "camel-mime-filter-basic.h"
-#include "camel-mime-filter-crlf.h"
-#include "camel-mime-filter-charset.h"
-#include "camel-exception.h"
-
-#define d(x) /*(printf("%s(%d): ", __FILE__, __LINE__),(x))*/
-
-typedef enum {
- HEADER_UNKNOWN,
- HEADER_DESCRIPTION,
- HEADER_DISPOSITION,
- HEADER_CONTENT_ID,
- HEADER_ENCODING,
- HEADER_CONTENT_MD5,
- HEADER_CONTENT_LANGUAGES,
- HEADER_CONTENT_TYPE
-} CamelHeaderType;
-
-
-static GHashTable *header_name_table;
-static GHashTable *header_formatted_table;
-
-static CamelMediumClass *parent_class=NULL;
-
-/* Returns the class for a CamelMimePart */
-#define CMP_CLASS(so) CAMEL_MIME_PART_CLASS (CAMEL_OBJECT_GET_CLASS(so))
-#define CDW_CLASS(so) CAMEL_DATA_WRAPPER_CLASS (CAMEL_OBJECT_GET_CLASS(so))
-#define CMD_CLASS(so) CAMEL_MEDIUM_CLASS (CAMEL_OBJECT_GET_CLASS(so))
-
-/* from CamelDataWrapper */
-static int write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream);
-static int construct_from_stream (CamelDataWrapper *dw, CamelStream *s);
-
-/* from CamelMedia */
-static void add_header (CamelMedium *medium, const char *header_name, const void *header_value);
-static void set_header (CamelMedium *medium, const char *header_name, const void *header_value);
-static void remove_header (CamelMedium *medium, const char *header_name);
-static const void *get_header (CamelMedium *medium, const char *header_name);
-
-static void set_content_object (CamelMedium *medium, CamelDataWrapper *content);
-
-/* from camel mime parser */
-static int construct_from_parser (CamelMimePart *, CamelMimeParser *);
-
-/* forward references */
-static void set_disposition (CamelMimePart *mime_part, const gchar *disposition);
-
-
-/* loads in a hash table the set of header names we */
-/* recognize and associate them with a unique enum */
-/* identifier (see CamelHeaderType above) */
-static void
-init_header_name_table()
-{
- header_name_table = g_hash_table_new (g_strcase_hash, g_strcase_equal);
- g_hash_table_insert (header_name_table, "Content-Description", (gpointer)HEADER_DESCRIPTION);
- g_hash_table_insert (header_name_table, "Content-Disposition", (gpointer)HEADER_DISPOSITION);
- g_hash_table_insert (header_name_table, "Content-id", (gpointer)HEADER_CONTENT_ID);
- g_hash_table_insert (header_name_table, "Content-Transfer-Encoding", (gpointer)HEADER_ENCODING);
- g_hash_table_insert (header_name_table, "Content-MD5", (gpointer)HEADER_CONTENT_MD5);
- g_hash_table_insert (header_name_table, "Content-Type", (gpointer)HEADER_CONTENT_TYPE);
-
- header_formatted_table = g_hash_table_new(g_strcase_hash, g_strcase_equal);
- g_hash_table_insert(header_formatted_table, "Content-Type", (void *)1);
- g_hash_table_insert(header_formatted_table, "Content-Disposition", (void *)1);
-}
-
-static void
-camel_mime_part_class_init (CamelMimePartClass *camel_mime_part_class)
-{
- CamelMediumClass *camel_medium_class = CAMEL_MEDIUM_CLASS (camel_mime_part_class);
- CamelDataWrapperClass *camel_data_wrapper_class = CAMEL_DATA_WRAPPER_CLASS (camel_mime_part_class);
-
- parent_class = CAMEL_MEDIUM_CLASS (camel_type_get_global_classfuncs (camel_medium_get_type ()));
- init_header_name_table();
-
- camel_mime_part_class->construct_from_parser = construct_from_parser;
-
- /* virtual method overload */
- camel_medium_class->add_header = add_header;
- camel_medium_class->set_header = set_header;
- camel_medium_class->get_header = get_header;
- camel_medium_class->remove_header = remove_header;
- camel_medium_class->set_content_object = set_content_object;
-
- camel_data_wrapper_class->write_to_stream = write_to_stream;
- camel_data_wrapper_class->construct_from_stream= construct_from_stream;
-}
-
-static void
-camel_mime_part_init (gpointer object, gpointer klass)
-{
- CamelMimePart *camel_mime_part = CAMEL_MIME_PART (object);
-
- camel_mime_part->content_type = header_content_type_new ("text", "plain");
- camel_mime_part->description = NULL;
- camel_mime_part->disposition = NULL;
- camel_mime_part->content_id = NULL;
- camel_mime_part->content_MD5 = NULL;
- camel_mime_part->content_languages = NULL;
- camel_mime_part->encoding = CAMEL_MIME_PART_ENCODING_DEFAULT;
-}
-
-
-static void
-camel_mime_part_finalize (CamelObject *object)
-{
- CamelMimePart *mime_part = CAMEL_MIME_PART (object);
-
- g_free (mime_part->description);
- g_free (mime_part->content_id);
- g_free (mime_part->content_MD5);
- string_list_free (mime_part->content_languages);
- header_disposition_unref(mime_part->disposition);
-
- if (mime_part->content_type)
- header_content_type_unref (mime_part->content_type);
-
- header_raw_clear(&mime_part->headers);
-}
-
-
-
-CamelType
-camel_mime_part_get_type (void)
-{
- static CamelType camel_mime_part_type = CAMEL_INVALID_TYPE;
-
- if (camel_mime_part_type == CAMEL_INVALID_TYPE) {
- camel_mime_part_type = camel_type_register (CAMEL_MEDIUM_TYPE, "CamelMimePart",
- sizeof (CamelMimePart),
- sizeof (CamelMimePartClass),
- (CamelObjectClassInitFunc) camel_mime_part_class_init,
- NULL,
- (CamelObjectInitFunc) camel_mime_part_init,
- (CamelObjectFinalizeFunc) camel_mime_part_finalize);
- }
-
- return camel_mime_part_type;
-}
-
-
-/* **** */
-
-static gboolean
-process_header(CamelMedium *medium, const char *header_name, const char *header_value)
-{
- CamelMimePart *mime_part = CAMEL_MIME_PART (medium);
- CamelHeaderType header_type;
- char *text;
-
- /* Try to parse the header pair. If it corresponds to something */
- /* known, the job is done in the parsing routine. If not, */
- /* we simply add the header in a raw fashion */
-
- header_type = (CamelHeaderType) g_hash_table_lookup (header_name_table, header_name);
- switch (header_type) {
- case HEADER_DESCRIPTION: /* raw header->utf8 conversion */
- text = header_decode_string(header_value);
- g_free(mime_part->description);
- mime_part->description = g_strstrip (text);
- break;
- case HEADER_DISPOSITION:
- set_disposition(mime_part, header_value);
- break;
- case HEADER_CONTENT_ID:
- text = header_msgid_decode(header_value);
- g_free(mime_part->content_id);
- mime_part->content_id = text;
- break;
- case HEADER_ENCODING:
- text = header_token_decode(header_value);
- mime_part->encoding = camel_mime_part_encoding_from_string (text);
- g_free(text);
- break;
- case HEADER_CONTENT_MD5:
- g_free(mime_part->content_MD5);
- mime_part->content_MD5 = g_strdup(header_value);
- break;
- case HEADER_CONTENT_TYPE:
- if (mime_part->content_type)
- header_content_type_unref (mime_part->content_type);
- mime_part->content_type = header_content_type_decode (header_value);
- break;
- default:
- return FALSE;
- }
- return TRUE;
-}
-
-static void
-set_header (CamelMedium *medium, const char *header_name, const void *header_value)
-{
- CamelMimePart *part = CAMEL_MIME_PART (medium);
-
- process_header(medium, header_name, header_value);
- header_raw_replace(&part->headers, header_name, header_value, -1);
-}
-
-static void
-add_header (CamelMedium *medium, const char *header_name, const void *header_value)
-{
- CamelMimePart *part = CAMEL_MIME_PART (medium);
-
- /* Try to parse the header pair. If it corresponds to something */
- /* known, the job is done in the parsing routine. If not, */
- /* we simply add the header in a raw fashion */
-
- /* If it was one of the headers we handled, it must be unique, set it instead of add */
- if (process_header(medium, header_name, header_value))
- header_raw_replace(&part->headers, header_name, header_value, -1);
- else
- header_raw_append(&part->headers, header_name, header_value, -1);
-}
-
-static void
-remove_header (CamelMedium *medium, const char *header_name)
-{
- CamelMimePart *part = (CamelMimePart *)medium;
-
- process_header(medium, header_name, NULL);
- header_raw_remove(&part->headers, header_name);
-}
-
-static const void *
-get_header (CamelMedium *medium, const char *header_name)
-{
- CamelMimePart *part = (CamelMimePart *)medium;
-
- return header_raw_find(&part->headers, header_name, NULL);
-}
-
-
-/* **** Content-Description */
-void
-camel_mime_part_set_description (CamelMimePart *mime_part, const gchar *description)
-{
- char *text = header_encode_string (description);
-
- camel_medium_set_header (CAMEL_MEDIUM (mime_part),
- "Content-Description", text);
- g_free (text);
-}
-
-const gchar *
-camel_mime_part_get_description (CamelMimePart *mime_part)
-{
- return mime_part->description;
-}
-
-/* **** Content-Disposition */
-
-static void
-set_disposition (CamelMimePart *mime_part, const gchar *disposition)
-{
- header_disposition_unref(mime_part->disposition);
- if (disposition)
- mime_part->disposition = header_disposition_decode(disposition);
- else
- mime_part->disposition = NULL;
-}
-
-
-void
-camel_mime_part_set_disposition (CamelMimePart *mime_part, const gchar *disposition)
-{
- char *text;
-
- /* we poke in a new disposition (so we dont lose 'filename', etc) */
- if (mime_part->disposition == NULL) {
- set_disposition(mime_part, disposition);
- }
- if (mime_part->disposition != NULL) {
- g_free(mime_part->disposition->disposition);
- mime_part->disposition->disposition = g_strdup(disposition);
- }
- text = header_disposition_format(mime_part->disposition);
-
- camel_medium_set_header (CAMEL_MEDIUM (mime_part),
- "Content-Disposition", text);
-
- g_free(text);
-}
-
-const gchar *
-camel_mime_part_get_disposition (CamelMimePart *mime_part)
-{
- if (mime_part->disposition)
- return (mime_part->disposition)->disposition;
- else
- return NULL;
-}
-
-
-/* **** Content-Disposition: filename="xxx" */
-
-void
-camel_mime_part_set_filename (CamelMimePart *mime_part, const gchar *filename)
-{
- char *str;
- if (mime_part->disposition == NULL)
- mime_part->disposition = header_disposition_decode("attachment");
-
- header_set_param(&mime_part->disposition->params, "filename", filename);
- str = header_disposition_format(mime_part->disposition);
-
- camel_medium_set_header (CAMEL_MEDIUM (mime_part),
- "Content-Disposition", str);
- g_free(str);
-}
-
-const gchar *
-camel_mime_part_get_filename (CamelMimePart *mime_part)
-{
- if (mime_part->disposition) {
- const gchar *name = header_param (mime_part->disposition->params, "filename");
- if (name)
- return name;
- }
-
- return header_content_type_param (mime_part->content_type, "name");
-}
-
-
-/* **** Content-ID: */
-
-void
-camel_mime_part_set_content_id (CamelMimePart *mime_part, const char *contentid)
-{
- camel_medium_set_header (CAMEL_MEDIUM (mime_part), "Content-ID",
- contentid);
-}
-
-const gchar *
-camel_mime_part_get_content_id (CamelMimePart *mime_part)
-{
- return mime_part->content_id;
-}
-
-/* **** Content-MD5: */
-
-void
-camel_mime_part_set_content_MD5 (CamelMimePart *mime_part, const char *md5)
-{
- camel_medium_set_header (CAMEL_MEDIUM (mime_part), "Content-MD5", md5);
-}
-
-const gchar *
-camel_mime_part_get_content_MD5 (CamelMimePart *mime_part)
-{
- return mime_part->content_MD5;
-}
-
-/* **** Content-Transfer-Encoding: */
-
-void
-camel_mime_part_set_encoding (CamelMimePart *mime_part,
- CamelMimePartEncodingType encoding)
-{
- const char *text;
-
- text = camel_mime_part_encoding_to_string (encoding);
- camel_medium_set_header (CAMEL_MEDIUM (mime_part),
- "Content-Transfer-Encoding", text);
-}
-
-const CamelMimePartEncodingType
-camel_mime_part_get_encoding (CamelMimePart *mime_part)
-{
- return mime_part->encoding;
-}
-
-/* FIXME: do something with this stuff ... */
-
-void
-camel_mime_part_set_content_languages (CamelMimePart *mime_part, GList *content_languages)
-{
- if (mime_part->content_languages) string_list_free (mime_part->content_languages);
- mime_part->content_languages = content_languages;
-
- /* FIXME: translate to a header and set it */
-}
-
-const GList *
-camel_mime_part_get_content_languages (CamelMimePart *mime_part)
-{
- return mime_part->content_languages;
-}
-
-
-/* **** */
-
-/* **** Content-Type: */
-
-void
-camel_mime_part_set_content_type (CamelMimePart *mime_part, gchar *content_type)
-{
- camel_medium_set_header (CAMEL_MEDIUM (mime_part),
- "Content-Type", content_type);
-}
-
-CamelContentType *
-camel_mime_part_get_content_type (CamelMimePart *mime_part)
-{
- return mime_part->content_type;
-}
-
-/*********/
-
-
-
-static void
-set_content_object (CamelMedium *medium, CamelDataWrapper *content)
-{
- CamelMimePart *mime_part = CAMEL_MIME_PART (medium);
- CamelContentType *object_content_type;
-
- parent_class->set_content_object (medium, content);
-
- object_content_type = camel_data_wrapper_get_mime_type_field (content);
- if (mime_part->content_type != object_content_type) {
- char *txt;
-
- txt = header_content_type_format (object_content_type);
- camel_medium_set_header (CAMEL_MEDIUM (mime_part), "Content-Type", txt);
- g_free(txt);
- }
-}
-
-/**********************************************************************/
-
-static int
-write_to_stream(CamelDataWrapper *data_wrapper, CamelStream *stream)
-{
- CamelMimePart *mp = CAMEL_MIME_PART(data_wrapper);
- CamelMedium *medium = CAMEL_MEDIUM(data_wrapper);
- CamelDataWrapper *content;
- int total = 0;
- int count;
-
- d(printf("mime_part::write_to_stream\n"));
-
- /* FIXME: something needs to be done about this ... */
- /* FIXME: need to count these bytes too */
-#ifndef NO_WARNINGS
-#warning content-languages should be stored as a header
-#endif
-
- if (mp->headers) {
- struct _header_raw *h = mp->headers;
- char *val;
-
- /* fold/write the headers. But dont fold headers that are already formatted
- (e.g. ones with parameter-lists, that we know about, and have created) */
- while (h) {
- val = h->value;
- if (val == NULL) {
- g_warning("h->value is NULL here for %s", h->name);
- count = 0;
- } else if (g_hash_table_lookup(header_formatted_table, val) == NULL) {
- val = header_fold(val, strlen(h->name));
- count = camel_stream_printf(stream, "%s%s%s\n", h->name, isspace(val[0]) ? ":" : ": ", val);
- g_free(val);
- } else {
- count = camel_stream_printf(stream, "%s%s%s\n", h->name, isspace(val[0]) ? ":" : ": ", val);
- }
- if (count == -1)
- return -1;
- total += count;
- h = h->next;
- }
- }
-
- count = camel_stream_write(stream, "\n", 1);
- if (count == -1)
- return -1;
- total += count;
-
- content = camel_medium_get_content_object(medium);
- if (content) {
- /* I dont really like this here, but i dont know where else it might go ... */
-#define CAN_THIS_GO_ELSEWHERE
-#ifdef CAN_THIS_GO_ELSEWHERE
- CamelMimeFilter *filter = NULL;
- CamelStreamFilter *filter_stream = NULL;
- CamelMimeFilter *charenc = NULL;
- const char *charset;
-
- switch(mp->encoding) {
- case CAMEL_MIME_PART_ENCODING_BASE64:
- filter = (CamelMimeFilter *)camel_mime_filter_basic_new_type(CAMEL_MIME_FILTER_BASIC_BASE64_ENC);
- break;
- case CAMEL_MIME_PART_ENCODING_QUOTEDPRINTABLE:
- filter = (CamelMimeFilter *)camel_mime_filter_basic_new_type(CAMEL_MIME_FILTER_BASIC_QP_ENC);
- break;
- default:
- break;
- }
-
- if (header_content_type_is(mp->content_type, "text", "*")) {
- charset = header_content_type_param(mp->content_type, "charset");
- if (!(charset == NULL || !strcasecmp(charset, "us-ascii") || !strcasecmp(charset, "utf-8"))) {
- charenc = (CamelMimeFilter *)camel_mime_filter_charset_new_convert("utf-8", charset);
- }
- }
-
- if (filter || charenc) {
- filter_stream = camel_stream_filter_new_with_stream(stream);
-
- /* if we have a character encoder, add that always */
- if (charenc) {
- camel_stream_filter_add(filter_stream, charenc);
- camel_object_unref((CamelObject *)charenc);
- }
-
- /* we only re-do crlf on encoded blocks */
- if (filter && header_content_type_is(mp->content_type, "text", "*")) {
- CamelMimeFilter *crlf = camel_mime_filter_crlf_new(CAMEL_MIME_FILTER_CRLF_ENCODE,
- CAMEL_MIME_FILTER_CRLF_MODE_CRLF_ONLY);
-
- camel_stream_filter_add(filter_stream, crlf);
- camel_object_unref((CamelObject *)crlf);
-
- }
-
- if (filter) {
- camel_stream_filter_add(filter_stream, filter);
- camel_object_unref((CamelObject *)filter);
- }
-
- stream = (CamelStream *)filter_stream;
- }
-
-#endif
- count = camel_data_wrapper_write_to_stream(content, stream);
- if (filter_stream) {
- camel_stream_flush((CamelStream *)filter_stream);
- camel_object_unref((CamelObject *)filter_stream);
- }
- if (count == -1)
- return -1;
- total += count;
- } else {
- g_warning("No content for medium, nothing to write");
- }
- return total;
-}
-
-/* mime_part */
-static int
-construct_from_parser(CamelMimePart *dw, CamelMimeParser *mp)
-{
- struct _header_raw *headers;
- char *buf;
- int len;
-
- d(printf("mime_part::construct_from_parser()\n"));
-
- switch (camel_mime_parser_step(mp, &buf, &len)) {
- case HSCAN_MESSAGE:
- /* set the default type of a message always */
- if (dw->content_type)
- header_content_type_unref (dw->content_type);
- dw->content_type = header_content_type_decode ("message/rfc822");
- case HSCAN_HEADER:
- case HSCAN_MULTIPART:
- /* we have the headers, build them into 'us' */
- headers = camel_mime_parser_headers_raw(mp);
- while (headers) {
- camel_medium_add_header((CamelMedium *)dw, headers->name, headers->value);
- headers = headers->next;
- }
- camel_mime_part_construct_content_from_parser(dw, mp);
- break;
- default:
- g_warning("Invalid state encountered???: %d", camel_mime_parser_state(mp));
- }
-
- d(printf("mime_part::construct_from_parser() leaving\n"));
-#ifndef NO_WARNINGS
-#warning "Need to work out how to detect a (fatally) bad parse in the parser"
-#endif
- return 0;
-}
-
-/**
- * camel_mime_part_construct_from_parser:
- * @mime_part:
- * @mp:
- *
- *
- *
- * Return value:
- **/
-int
-camel_mime_part_construct_from_parser(CamelMimePart *mime_part, CamelMimeParser *mp)
-{
- return CMP_CLASS (mime_part)->construct_from_parser (mime_part, mp);
-}
-
-static int
-construct_from_stream(CamelDataWrapper *dw, CamelStream *s)
-{
- CamelMimeParser *mp;
- int ret;
-
- d(printf("mime_part::construct_from_stream()\n"));
-
- mp = camel_mime_parser_new();
- if (camel_mime_parser_init_with_stream(mp, s) == -1) {
- g_warning("Cannot create parser for stream");
- ret = -1;
- } else {
- ret = camel_mime_part_construct_from_parser((CamelMimePart *)dw, mp);
- }
- camel_object_unref((CamelObject *)mp);
- return ret;
-}
-
-/* this must be kept in sync with the header */
-static const char *encodings[] = {
- "",
- "7bit",
- "8bit",
- "base64",
- "quoted-printable",
- "binary"
-};
-
-const char *
-camel_mime_part_encoding_to_string (CamelMimePartEncodingType encoding)
-{
- if (encoding >= sizeof(encodings)/sizeof(encodings[0]))
- encoding = 0;
-
- return encodings[encoding];
-}
-
-/* FIXME I am not sure this is the correct way to do this. */
-CamelMimePartEncodingType
-camel_mime_part_encoding_from_string (const gchar *string)
-{
- int i;
-
- if (string != NULL) {
- for (i=0;i<sizeof(encodings)/sizeof(encodings[0]);i++)
- if (!strcasecmp(string, encodings[i]))
- return i;
- }
-
- return CAMEL_MIME_PART_ENCODING_DEFAULT;
-}
-
-
-/******************************/
-/** Misc utility functions **/
-
-/**
- * camel_mime_part_new:
- *
- * Return value: a new CamelMimePart
- **/
-CamelMimePart *
-camel_mime_part_new (void)
-{
- return (CamelMimePart *)camel_object_new (CAMEL_MIME_PART_TYPE);
-}
-
-/**
- * camel_mime_part_set_content:
- * @camel_mime_part: Mime part
- * @data: data to put into the part
- * @length: length of @data
- * @type: Content-Type of the data
- *
- * Utility function used to set the content of a mime part object to
- * be the provided data. If @length is 0, this routine can be used as
- * a way to remove old content (in which case @data and @type are
- * ignored and may be %NULL).
- **/
-void
-camel_mime_part_set_content (CamelMimePart *camel_mime_part,
- const char *data, int length,
- const char *type) /* why on earth is the type last? */
-{
- CamelMedium *medium = CAMEL_MEDIUM (camel_mime_part);
-
- if (length) {
- CamelDataWrapper *dw;
- CamelStream *stream;
-
- dw = camel_data_wrapper_new ();
- camel_data_wrapper_set_mime_type (dw, type);
- stream = camel_stream_mem_new_with_buffer (data, length);
- camel_data_wrapper_construct_from_stream (dw, stream);
- camel_object_unref (CAMEL_OBJECT (stream));
- camel_medium_set_content_object (medium, dw);
- camel_object_unref (CAMEL_OBJECT (dw));
- } else {
- if (medium->content)
- camel_object_unref (CAMEL_OBJECT (medium->content));
- medium->content = NULL;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-03 15:00:31 +0800