diff options
Diffstat (limited to 'camel/camel-mime-message.c')
| -rw-r--r-- | camel/camel-mime-message.c | 904 |
1 files changed, 0 insertions, 904 deletions
diff --git a/camel/camel-mime-message.c b/camel/camel-mime-message.c deleted file mode 100644 index 7f7a35466d..0000000000 --- a/camel/camel-mime-message.c +++ /dev/null @@ -1,904 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8; fill-column: 160 -*- */ -/* camel-mime-message.c : class for a mime_message */ - -/* - * Authors: Bertrand Guiheneuf <bertrand@helixcode.com> - * Michael Zucchi <notzed@ximian.com> - * Jeffrey Stedfast <fejj@ximian.com> - * - * Copyright 1999, 2000 Ximian, Inc. (www.ximian.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * 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 - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <ctype.h> -#include <stdio.h> -#include <string.h> - -#include <gal/util/e-iconv.h> - -#include <errno.h> - -#include "camel-mime-message.h" -#include "camel-multipart.h" -#include "camel-stream-mem.h" -#include "string-utils.h" -#include "hash-table-utils.h" -#include "camel-url.h" - -#include "camel-stream-filter.h" -#include "camel-stream-null.h" -#include "camel-mime-filter-charset.h" -#include "camel-mime-filter-bestenc.h" - -#include "e-time-utils.h" - -#define d(x) - -/* these 2 below should be kept in sync */ -typedef enum { - HEADER_UNKNOWN, - HEADER_FROM, - HEADER_REPLY_TO, - HEADER_SUBJECT, - HEADER_TO, - HEADER_RESENT_TO, - HEADER_CC, - HEADER_RESENT_CC, - HEADER_BCC, - HEADER_RESENT_BCC, - HEADER_DATE, - HEADER_MESSAGE_ID -} CamelHeaderType; - -static char *header_names[] = { - /* dont include HEADER_UNKNOWN string */ - "From", "Reply-To", "Subject", "To", "Resent-To", "Cc", "Resent-Cc", - "Bcc", "Resent-Bcc", "Date", "Message-Id", NULL -}; - -static GHashTable *header_name_table; - -static CamelMimePartClass *parent_class = NULL; - -static char *recipient_names[] = { - "To", "Cc", "Bcc", "Resent-To", "Resent-Cc", "Resent-Bcc", NULL -}; - -static int write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream); -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 int construct_from_parser (CamelMimePart *, CamelMimeParser *); -static void unref_recipient (gpointer key, gpointer value, gpointer user_data); - -/* Returns the class for a CamelMimeMessage */ -#define CMM_CLASS(so) CAMEL_MIME_MESSAGE_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)) - -static void -camel_mime_message_class_init (CamelMimeMessageClass *camel_mime_message_class) -{ - CamelDataWrapperClass *camel_data_wrapper_class = CAMEL_DATA_WRAPPER_CLASS (camel_mime_message_class); - CamelMimePartClass *camel_mime_part_class = CAMEL_MIME_PART_CLASS (camel_mime_message_class); - CamelMediumClass *camel_medium_class = CAMEL_MEDIUM_CLASS (camel_mime_message_class); - int i; - - parent_class = CAMEL_MIME_PART_CLASS(camel_type_get_global_classfuncs (camel_mime_part_get_type ())); - - header_name_table = g_hash_table_new (g_strcase_hash, g_strcase_equal); - for (i=0;header_names[i];i++) - g_hash_table_insert (header_name_table, header_names[i], (gpointer)i+1); - - /* virtual method overload */ - camel_data_wrapper_class->write_to_stream = write_to_stream; - - camel_medium_class->add_header = add_header; - camel_medium_class->set_header = set_header; - camel_medium_class->remove_header = remove_header; - - camel_mime_part_class->construct_from_parser = construct_from_parser; -} - - -static void -camel_mime_message_init (gpointer object, gpointer klass) -{ - CamelMimeMessage *mime_message = (CamelMimeMessage *)object; - int i; - - camel_data_wrapper_set_mime_type (CAMEL_DATA_WRAPPER (object), "message/rfc822"); - - mime_message->recipients = g_hash_table_new(g_strcase_hash, g_strcase_equal); - for (i=0;recipient_names[i];i++) { - g_hash_table_insert(mime_message->recipients, recipient_names[i], camel_internet_address_new()); - } - - mime_message->subject = NULL; - mime_message->reply_to = NULL; - mime_message->from = NULL; - mime_message->date = CAMEL_MESSAGE_DATE_CURRENT; - mime_message->date_offset = 0; - mime_message->date_received = CAMEL_MESSAGE_DATE_CURRENT; - mime_message->date_received_offset = 0; - mime_message->message_id = NULL; -} - -static void -camel_mime_message_finalize (CamelObject *object) -{ - CamelMimeMessage *message = CAMEL_MIME_MESSAGE (object); - - g_free (message->subject); - - g_free (message->message_id); - - if (message->reply_to) - camel_object_unref ((CamelObject *)message->reply_to); - - if (message->from) - camel_object_unref ((CamelObject *)message->from); - - g_hash_table_foreach (message->recipients, unref_recipient, NULL); - g_hash_table_destroy (message->recipients); -} - - -CamelType -camel_mime_message_get_type (void) -{ - static CamelType camel_mime_message_type = CAMEL_INVALID_TYPE; - - if (camel_mime_message_type == CAMEL_INVALID_TYPE) { - camel_mime_message_type = camel_type_register (camel_mime_part_get_type(), "CamelMimeMessage", - sizeof (CamelMimeMessage), - sizeof (CamelMimeMessageClass), - (CamelObjectClassInitFunc) camel_mime_message_class_init, - NULL, - (CamelObjectInitFunc) camel_mime_message_init, - (CamelObjectFinalizeFunc) camel_mime_message_finalize); - } - - return camel_mime_message_type; -} - -static void -unref_recipient (gpointer key, gpointer value, gpointer user_data) -{ - camel_object_unref (CAMEL_OBJECT (value)); -} - -CamelMimeMessage * -camel_mime_message_new (void) -{ - CamelMimeMessage *mime_message; - mime_message = CAMEL_MIME_MESSAGE (camel_object_new (CAMEL_MIME_MESSAGE_TYPE)); - - return mime_message; -} - -/* **** Date: */ - -void -camel_mime_message_set_date (CamelMimeMessage *message, time_t date, int offset) -{ - char *datestr; - - g_assert(message); - - if (date == CAMEL_MESSAGE_DATE_CURRENT) { - struct tm local; - int tz; - - date = time(0); - e_localtime_with_offset(date, &local, &tz); - offset = (((tz/60/60) * 100) + (tz/60 % 60)); - } - message->date = date; - message->date_offset = offset; - - datestr = header_format_date (date, offset); - CAMEL_MEDIUM_CLASS (parent_class)->set_header ((CamelMedium *)message, "Date", datestr); - g_free (datestr); -} - -time_t -camel_mime_message_get_date (CamelMimeMessage *msg, int *offset) -{ - if (offset) - *offset = msg->date_offset; - - return msg->date; -} - -time_t -camel_mime_message_get_date_received (CamelMimeMessage *msg, int *offset) -{ - if (msg->date_received == CAMEL_MESSAGE_DATE_CURRENT) { - const char *received; - - received = camel_medium_get_header ((CamelMedium *)msg, "received"); - if (received) - received = strrchr (received, ';'); - if (received) - msg->date_received = header_decode_date (received + 1, &msg->date_received_offset); - } - - if (offset) - *offset = msg->date_received_offset; - - return msg->date_received; -} - -/* **** Message-Id: */ - -void -camel_mime_message_set_message_id (CamelMimeMessage *mime_message, const char *message_id) -{ - char *id; - - g_assert (mime_message); - - g_free (mime_message->message_id); - - if (message_id) { - id = g_strstrip (g_strdup (message_id)); - } else { - id = header_msgid_generate (); - } - - mime_message->message_id = id; - id = g_strdup_printf ("<%s>", mime_message->message_id); - CAMEL_MEDIUM_CLASS (parent_class)->set_header (CAMEL_MEDIUM (mime_message), "Message-Id", id); - g_free (id); -} - -const char * -camel_mime_message_get_message_id (CamelMimeMessage *mime_message) -{ - g_assert (mime_message); - - return mime_message->message_id; -} - -/* **** Reply-To: */ - -void -camel_mime_message_set_reply_to (CamelMimeMessage *msg, const CamelInternetAddress *reply_to) -{ - char *addr; - - g_assert(msg); - - if (msg->reply_to) { - camel_object_unref ((CamelObject *)msg->reply_to); - msg->reply_to = NULL; - } - - if (reply_to == NULL) { - CAMEL_MEDIUM_CLASS (parent_class)->remove_header (CAMEL_MEDIUM (msg), "Reply-To"); - return; - } - - msg->reply_to = (CamelInternetAddress *)camel_address_new_clone ((CamelAddress *)reply_to); - addr = camel_address_encode ((CamelAddress *)msg->reply_to); - CAMEL_MEDIUM_CLASS (parent_class)->set_header (CAMEL_MEDIUM (msg), "Reply-To", addr); - g_free (addr); -} - -const CamelInternetAddress * -camel_mime_message_get_reply_to (CamelMimeMessage *mime_message) -{ - g_assert (mime_message); - - /* TODO: ref for threading? */ - - return mime_message->reply_to; -} - -/* **** Subject: */ - -void -camel_mime_message_set_subject (CamelMimeMessage *mime_message, const char *subject) -{ - char *text; - - g_assert(mime_message); - - g_free (mime_message->subject); - mime_message->subject = g_strstrip (g_strdup (subject)); - text = header_encode_string((unsigned char *)mime_message->subject); - CAMEL_MEDIUM_CLASS(parent_class)->set_header(CAMEL_MEDIUM (mime_message), "Subject", text); - g_free (text); -} - -const char * -camel_mime_message_get_subject (CamelMimeMessage *mime_message) -{ - g_assert(mime_message); - - return mime_message->subject; -} - -/* *** From: */ - -/* Thought: Since get_from/set_from are so rarely called, it is probably not useful - to cache the from (and reply_to) addresses as InternetAddresses internally, we - could just get it from the headers and reprocess every time. */ -void -camel_mime_message_set_from (CamelMimeMessage *msg, const CamelInternetAddress *from) -{ - char *addr; - - g_assert(msg); - - if (msg->from) { - camel_object_unref((CamelObject *)msg->from); - msg->from = NULL; - } - - if (from == NULL || camel_address_length((CamelAddress *)from) == 0) { - CAMEL_MEDIUM_CLASS(parent_class)->remove_header(CAMEL_MEDIUM(msg), "From"); - return; - } - - msg->from = (CamelInternetAddress *)camel_address_new_clone((CamelAddress *)from); - addr = camel_address_encode((CamelAddress *)msg->from); - CAMEL_MEDIUM_CLASS (parent_class)->set_header(CAMEL_MEDIUM(msg), "From", addr); - g_free(addr); -} - -const CamelInternetAddress * -camel_mime_message_get_from (CamelMimeMessage *mime_message) -{ - g_assert (mime_message); - - /* TODO: we should really ref this for multi-threading to work */ - - return mime_message->from; -} - -/* **** To: Cc: Bcc: */ - -void -camel_mime_message_set_recipients(CamelMimeMessage *mime_message, const char *type, const CamelInternetAddress *r) -{ - char *text; - CamelInternetAddress *addr; - - g_assert(mime_message); - - addr = g_hash_table_lookup (mime_message->recipients, type); - if (addr == NULL) { - g_warning ("trying to set a non-valid receipient type: %s", type); - return; - } - - if (r == NULL || camel_address_length ((CamelAddress *)r) == 0) { - camel_address_remove ((CamelAddress *)addr, -1); - CAMEL_MEDIUM_CLASS (parent_class)->remove_header (CAMEL_MEDIUM (mime_message), type); - return; - } - - /* note this does copy, and not append (cat) */ - camel_address_copy ((CamelAddress *)addr, (const CamelAddress *)r); - - /* and sync our headers */ - text = camel_address_encode (CAMEL_ADDRESS (addr)); - CAMEL_MEDIUM_CLASS (parent_class)->set_header (CAMEL_MEDIUM (mime_message), type, text); - g_free(text); -} - -void -camel_mime_message_set_source (CamelMimeMessage *mime_message, const char *src) -{ - CamelURL *url; - char *uri; - - g_assert (mime_message); - - url = camel_url_new (src, NULL); - if (url) { - uri = camel_url_to_string (url, CAMEL_URL_HIDE_ALL); - camel_medium_add_header (CAMEL_MEDIUM (mime_message), "X-Evolution-Source", uri); - g_free (uri); - camel_url_free (url); - } -} - -const char * -camel_mime_message_get_source (CamelMimeMessage *mime_message) -{ - const char *src; - - g_assert(mime_message); - - src = camel_medium_get_header (CAMEL_MEDIUM (mime_message), "X-Evolution-Source"); - if (src) { - while (*src && isspace ((unsigned) *src)) - ++src; - } - return src; -} - -const CamelInternetAddress * -camel_mime_message_get_recipients (CamelMimeMessage *mime_message, const char *type) -{ - g_assert(mime_message); - - return g_hash_table_lookup (mime_message->recipients, type); -} - -/* mime_message */ -static int -construct_from_parser (CamelMimePart *dw, CamelMimeParser *mp) -{ - char *buf; - int len; - int state; - int ret; - int err; - - d(printf("constructing mime-message\n")); - - d(printf("mime_message::construct_from_parser()\n")); - - /* let the mime-part construct the guts ... */ - ret = ((CamelMimePartClass *)parent_class)->construct_from_parser(dw, mp); - - if (ret == -1) - return -1; - - /* ... then clean up the follow-on state */ - state = camel_mime_parser_step (mp, &buf, &len); - switch (state) { - case HSCAN_EOF: case HSCAN_FROM_END: /* these doesn't belong to us */ - camel_mime_parser_unstep (mp); - case HSCAN_MESSAGE_END: - break; - default: - g_error ("Bad parser state: Expecing MESSAGE_END or EOF or EOM, got: %d", camel_mime_parser_state (mp)); - camel_mime_parser_unstep (mp); - return -1; - } - - d(printf("mime_message::construct_from_parser() leaving\n")); -#ifndef NO_WARNINGS -#warning "return a real error code" -#endif - err = camel_mime_parser_errno(mp); - if (err != 0) { - errno = err; - ret = -1; - } - - return ret; -} - -static int -write_to_stream (CamelDataWrapper *data_wrapper, CamelStream *stream) -{ - CamelMimeMessage *mm = CAMEL_MIME_MESSAGE (data_wrapper); - - /* force mandatory headers ... */ - if (mm->from == NULL) { - /* FIXME: should we just abort? Should we make one up? */ - g_warning ("No from set for message"); - camel_medium_set_header ((CamelMedium *)mm, "From", ""); - } - if (!camel_medium_get_header ((CamelMedium *)mm, "Date")) - camel_mime_message_set_date (mm, CAMEL_MESSAGE_DATE_CURRENT, 0); - - if (mm->subject == NULL) - camel_mime_message_set_subject (mm, "No Subject"); - - if (mm->message_id == NULL) - camel_mime_message_set_message_id (mm, NULL); - - /* FIXME: "To" header needs to be set explicitly as well ... */ - - if (!camel_medium_get_header ((CamelMedium *)mm, "Mime-Version")) - camel_medium_set_header ((CamelMedium *)mm, "Mime-Version", "1.0"); - - return CAMEL_DATA_WRAPPER_CLASS (parent_class)->write_to_stream (data_wrapper, stream); -} - -/* FIXME: check format of fields. */ -static gboolean -process_header (CamelMedium *medium, const char *header_name, const char *header_value) -{ - CamelHeaderType header_type; - CamelMimeMessage *message = CAMEL_MIME_MESSAGE (medium); - CamelInternetAddress *addr; - const char *charset; - - header_type = (CamelHeaderType)g_hash_table_lookup (header_name_table, header_name); - switch (header_type) { - case HEADER_FROM: - if (message->from) - camel_object_unref (CAMEL_OBJECT (message->from)); - message->from = camel_internet_address_new (); - camel_address_decode (CAMEL_ADDRESS (message->from), header_value); - break; - case HEADER_REPLY_TO: - if (message->reply_to) - camel_object_unref (CAMEL_OBJECT (message->reply_to)); - message->reply_to = camel_internet_address_new (); - camel_address_decode (CAMEL_ADDRESS (message->reply_to), header_value); - break; - case HEADER_SUBJECT: - g_free (message->subject); - if (((CamelMimePart *)message)->content_type) - charset = e_iconv_charset_name(header_content_type_param(((CamelMimePart *)message)->content_type, "charset")); - else - charset = NULL; - message->subject = g_strstrip (header_decode_string (header_value, charset)); - break; - case HEADER_TO: - case HEADER_CC: - case HEADER_BCC: - case HEADER_RESENT_TO: - case HEADER_RESENT_CC: - case HEADER_RESENT_BCC: - addr = g_hash_table_lookup (message->recipients, header_name); - if (header_value) - camel_address_decode (CAMEL_ADDRESS (addr), header_value); - else - camel_address_remove (CAMEL_ADDRESS (addr), -1); - break; - case HEADER_DATE: - if (header_value) { - message->date = header_decode_date (header_value, &message->date_offset); - } else { - message->date = CAMEL_MESSAGE_DATE_CURRENT; - message->date_offset = 0; - } - break; - case HEADER_MESSAGE_ID: - g_free (message->message_id); - if (header_value) - message->message_id = header_msgid_decode (header_value); - else - message->message_id = NULL; - break; - default: - return FALSE; - } - - return TRUE; -} - -static void -set_header (CamelMedium *medium, const char *header_name, const void *header_value) -{ - process_header (medium, header_name, header_value); - parent_class->parent_class.set_header (medium, header_name, header_value); -} - -static void -add_header (CamelMedium *medium, const char *header_name, const void *header_value) -{ - /* if we process it, then it must be forced unique as well ... */ - if (process_header (medium, header_name, header_value)) - parent_class->parent_class.set_header (medium, header_name, header_value); - else - parent_class->parent_class.add_header (medium, header_name, header_value); -} - -static void -remove_header (CamelMedium *medium, const char *header_name) -{ - process_header (medium, header_name, NULL); - parent_class->parent_class.remove_header (medium, header_name); -} - -typedef gboolean (*CamelPartFunc)(CamelMimeMessage *, CamelMimePart *, void *data); - -static gboolean -message_foreach_part_rec (CamelMimeMessage *msg, CamelMimePart *part, CamelPartFunc callback, void *data) -{ - CamelDataWrapper *containee; - int parts, i; - int go = TRUE; - - if (callback (msg, part, data) == FALSE) - return FALSE; - - containee = camel_medium_get_content_object (CAMEL_MEDIUM (part)); - - if (containee == NULL) - return go; - - /* using the object types is more accurate than using the mime/types */ - if (CAMEL_IS_MULTIPART (containee)) { - parts = camel_multipart_get_number (CAMEL_MULTIPART (containee)); - for (i = 0; go && i < parts; i++) { - CamelMimePart *part = camel_multipart_get_part (CAMEL_MULTIPART (containee), i); - - go = message_foreach_part_rec (msg, part, callback, data); - } - } else if (CAMEL_IS_MIME_MESSAGE (containee)) { - go = message_foreach_part_rec (msg, (CamelMimePart *)containee, callback, data); - } - - return go; -} - -/* dont make this public yet, it might need some more thinking ... */ -/* MPZ */ -static void -camel_mime_message_foreach_part (CamelMimeMessage *msg, CamelPartFunc callback, void *data) -{ - message_foreach_part_rec (msg, (CamelMimePart *)msg, callback, data); -} - -static gboolean -check_8bit (CamelMimeMessage *msg, CamelMimePart *part, void *data) -{ - CamelMimePartEncodingType encoding; - int *has8bit = data; - - /* check this part, and stop as soon as we are done */ - encoding = camel_mime_part_get_encoding (part); - - *has8bit = encoding == CAMEL_MIME_PART_ENCODING_8BIT || encoding == CAMEL_MIME_PART_ENCODING_BINARY; - - return !(*has8bit); -} - -gboolean -camel_mime_message_has_8bit_parts (CamelMimeMessage *msg) -{ - int has8bit = FALSE; - - camel_mime_message_foreach_part (msg, check_8bit, &has8bit); - - return has8bit; -} - -/* finds the best charset and transfer encoding for a given part */ -static CamelMimePartEncodingType -find_best_encoding (CamelMimePart *part, CamelBestencRequired required, CamelBestencEncoding enctype, char **charsetp) -{ - const char *charsetin = NULL; - char *charset = NULL; - CamelStream *null; - CamelStreamFilter *filter; - CamelMimeFilterCharset *charenc = NULL; - CamelMimeFilterBestenc *bestenc; - int idb, idc = -1; - gboolean istext; - unsigned int flags, callerflags; - CamelMimePartEncodingType encoding; - CamelDataWrapper *content; - - /* we use all these weird stream things so we can do it with streams, and - not have to read the whole lot into memory - although i have a feeling - it would make things a fair bit simpler to do so ... */ - - d(printf("starting to check part\n")); - - content = camel_medium_get_content_object ((CamelMedium *)part); - if (content == NULL) { - /* charset might not be right here, but it'll get the right stuff - if it is ever set */ - *charsetp = NULL; - return CAMEL_MIME_PART_ENCODING_DEFAULT; - } - - istext = header_content_type_is (part->content_type, "text", "*"); - if (istext) { - flags = CAMEL_BESTENC_GET_CHARSET | CAMEL_BESTENC_GET_ENCODING; - } else { - flags = CAMEL_BESTENC_GET_ENCODING; - } - - /* when building the message, any encoded parts are translated already */ - flags |= CAMEL_BESTENC_LF_IS_CRLF; - /* and get any flags the caller passed in */ - callerflags = (required & CAMEL_BESTENC_NO_FROM); - flags |= callerflags; - - /* first a null stream, so any filtering is thrown away; we only want the sideeffects */ - null = (CamelStream *)camel_stream_null_new (); - filter = camel_stream_filter_new_with_stream (null); - - /* if we're not looking for the best charset, then use the one we have */ - if (istext && (required & CAMEL_BESTENC_GET_CHARSET) == 0 - && (charsetin = header_content_type_param (part->content_type, "charset"))) { - /* if libunicode doesn't support it, we dont really have utf8 anyway, so - we dont need a converter */ - charenc = camel_mime_filter_charset_new_convert ("UTF-8", charsetin); - if (charenc != NULL) - idc = camel_stream_filter_add (filter, (CamelMimeFilter *)charenc); - charsetin = NULL; - } - - bestenc = camel_mime_filter_bestenc_new (flags); - idb = camel_stream_filter_add (filter, (CamelMimeFilter *)bestenc); - d(printf("writing to checking stream\n")); - camel_data_wrapper_write_to_stream (content, (CamelStream *)filter); - camel_stream_filter_remove (filter, idb); - if (idc != -1) { - camel_stream_filter_remove (filter, idc); - camel_object_unref ((CamelObject *)charenc); - charenc = NULL; - } - - if (istext) - charsetin = camel_mime_filter_bestenc_get_best_charset (bestenc); - - d(printf("charsetin = %s\n", charsetin ? charsetin : "(null)")); - - /* if we have US-ASCII, or we're not doing text, we dont need to bother with the rest */ - if (charsetin != NULL && (required & CAMEL_BESTENC_GET_CHARSET) != 0) { - charset = g_strdup (charsetin); - - d(printf("have charset, trying conversion/etc\n")); - - /* now the 'bestenc' can has told us what the best encoding is, we can use that to create - a charset conversion filter as well, and then re-add the bestenc to filter the - result to find the best encoding to use as well */ - - charenc = camel_mime_filter_charset_new_convert ("UTF-8", charset); - - /* eek, libunicode doesn't undertand this charset anyway, then the 'utf8' we - thought we had is really the native format, in which case, we just treat - it as binary data (and take the result we have so far) */ - - if (charenc != NULL) { - /* otherwise, try another pass, converting to the real charset */ - - camel_mime_filter_reset ((CamelMimeFilter *)bestenc); - camel_mime_filter_bestenc_set_flags (bestenc, CAMEL_BESTENC_GET_ENCODING | - CAMEL_BESTENC_LF_IS_CRLF | callerflags); - - camel_stream_filter_add (filter, (CamelMimeFilter *)charenc); - camel_stream_filter_add (filter, (CamelMimeFilter *)bestenc); - - /* and write it to the new stream */ - camel_data_wrapper_write_to_stream (content, (CamelStream *)filter); - - camel_object_unref ((CamelObject *)charenc); - } - } - - encoding = camel_mime_filter_bestenc_get_best_encoding (bestenc, enctype); - - camel_object_unref ((CamelObject *)filter); - camel_object_unref ((CamelObject *)bestenc); - camel_object_unref ((CamelObject *)null); - - d(printf("done, best encoding = %d\n", encoding)); - - if (charsetp) - *charsetp = charset; - else - g_free (charset); - - return encoding; -} - -struct _enc_data { - CamelBestencRequired required; - CamelBestencEncoding enctype; -}; - -static gboolean -best_encoding (CamelMimeMessage *msg, CamelMimePart *part, void *datap) -{ - struct _enc_data *data = datap; - CamelMimePartEncodingType encoding; - CamelDataWrapper *wrapper; - char *charset; - - wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part)); - if (!wrapper) - return FALSE; - - /* we only care about actual content objects */ - if (!CAMEL_IS_MULTIPART (wrapper) && !CAMEL_IS_MIME_MESSAGE (wrapper)) { - encoding = find_best_encoding (part, data->required, data->enctype, &charset); - /* we always set the encoding, if we got this far. GET_CHARSET implies - also GET_ENCODING */ - camel_mime_part_set_encoding (part, encoding); - - if ((data->required & CAMEL_BESTENC_GET_CHARSET) != 0) { - if (header_content_type_is (part->content_type, "text", "*")) { - char *newct; - - /* FIXME: ick, the part content_type interface needs fixing bigtime */ - header_content_type_set_param (part->content_type, "charset", - charset ? charset : "us-ascii"); - newct = header_content_type_format (part->content_type); - if (newct) { - d(printf("Setting content-type to %s\n", newct)); - - camel_mime_part_set_content_type (part, newct); - g_free (newct); - } - } - } - } - - return TRUE; -} - -void -camel_mime_message_set_best_encoding (CamelMimeMessage *msg, CamelBestencRequired required, CamelBestencEncoding enctype) -{ - struct _enc_data data; - - if ((required & (CAMEL_BESTENC_GET_ENCODING|CAMEL_BESTENC_GET_CHARSET)) == 0) - return; - - data.required = required; - data.enctype = enctype; - - camel_mime_message_foreach_part (msg, best_encoding, &data); -} - -void -camel_mime_message_encode_8bit_parts (CamelMimeMessage *mime_message) -{ - camel_mime_message_set_best_encoding (mime_message, CAMEL_BESTENC_GET_ENCODING, CAMEL_BESTENC_7BIT); -} - - -struct _check_content_id { - CamelMimePart *part; - const char *content_id; -}; - -static gboolean -check_content_id (CamelMimeMessage *message, CamelMimePart *part, void *data) -{ - struct _check_content_id *check = (struct _check_content_id *) data; - const char *content_id; - gboolean found; - - content_id = camel_mime_part_get_content_id (part); - - found = content_id && !strcmp (content_id, check->content_id) ? TRUE : FALSE; - if (found) { - check->part = part; - camel_object_ref (CAMEL_OBJECT (part)); - } - - return !found; -} - -CamelMimePart * -camel_mime_message_get_part_by_content_id (CamelMimeMessage *message, const char *id) -{ - struct _check_content_id check; - - g_return_val_if_fail (CAMEL_IS_MIME_MESSAGE (message), NULL); - - if (id == NULL) - return NULL; - - check.content_id = id; - check.part = NULL; - - camel_mime_message_foreach_part (message, check_content_id, &check); - - return check.part; -} |