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Diffstat (limited to 'camel/camel-mime-part-utils.c')
| -rw-r--r-- | camel/camel-mime-part-utils.c | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/camel/camel-mime-part-utils.c b/camel/camel-mime-part-utils.c deleted file mode 100644 index d1c41377d1..0000000000 --- a/camel/camel-mime-part-utils.c +++ /dev/null @@ -1,333 +0,0 @@ -/* -*- 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@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 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 - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdio.h> -#include <string.h> -#include <unistd.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-fs.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" -#include "camel-html-parser.h" -#include "camel-charset-map.h" - -#define d(x) /*(printf("%s(%d): ", __FILE__, __LINE__),(x))*/ - -/* example: <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> */ - -static const char * -check_html_charset (CamelMimeParser *mp, CamelMimeFilterBasicType enctype) -{ - const char *buf; - off_t offset; - int length; - CamelHTMLParser *hp; - const char *charset = NULL; - camel_html_parser_t state; - struct _header_content_type *ct; - CamelMimeFilterBasic *fdec = NULL; - - /* if we can't find the charset within the first 2k, we ain't gonna find it */ - offset = camel_mime_parser_tell(mp); - length = camel_mime_parser_read(mp, &buf, 2048); - - d(printf("Checking html for meta content-type: '%.*s'", len, buf)); - - if (length == 0) { - camel_mime_parser_seek(mp, offset, SEEK_SET); - return NULL; - } - - /* if we need to first base64/qp decode, do this here, sigh */ - hp = camel_html_parser_new(); - if (enctype != 0) { - int dummy, len; - char *buffer; - - fdec = camel_mime_filter_basic_new_type(enctype); - camel_mime_filter_filter((CamelMimeFilter *)fdec, (char *)buf, length, 0, &buffer, &len, &dummy); - camel_html_parser_set_data(hp, buffer, len, TRUE); - } else { - camel_html_parser_set_data(hp, buf, length, TRUE); - } - - do { - const char *data; - int len; - const char *val; - - state = camel_html_parser_step(hp, &data, &len); - - /* example: <META http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> */ - - switch(state) { - case CAMEL_HTML_PARSER_ELEMENT: - val = camel_html_parser_tag(hp); - d(printf("Got tag: %s\n", tag)); - if (g_strcasecmp(val, "meta") == 0 - && (val = camel_html_parser_attr(hp, "http-equiv")) - && g_strcasecmp(val, "content-type") == 0 - && (val = camel_html_parser_attr(hp, "content")) - && (ct = header_content_type_decode(val))) { - charset = header_content_type_param(ct, "charset"); - if (charset) - charset = camel_charset_to_iconv (charset); - header_content_type_unref(ct); - } - break; - default: - /* ignore everything else */ - break; - } - } while (charset == NULL && state != CAMEL_HTML_PARSER_EOF); - - camel_object_unref((CamelObject *)hp); - if (fdec) - camel_object_unref((CamelObject *)fdec); - - camel_mime_parser_seek(mp, offset, SEEK_SET); - - return charset; -} - -/* simple data wrapper */ -static void -simple_data_wrapper_construct_from_parser (CamelDataWrapper *dw, CamelMimeParser *mp) -{ - CamelMimeFilter *fdec = NULL, *fcrlf = NULL, *fch = NULL; - int len, decid = -1, crlfid = -1, chrid = -1; - struct _header_content_type *ct; - CamelSeekableStream *seekable_source = NULL; - CamelStream *source; - GByteArray *buffer; - off_t start = 0, end; - char *encoding, *buf; - CamelMimeFilterBasicType enctype = 0; - - 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")); - enctype = CAMEL_MIME_FILTER_BASIC_BASE64_DEC; - } else if (!strcasecmp(encoding, "quoted-printable")) { - d(printf("Adding quoted-printable decoder ...\n")); - enctype = CAMEL_MIME_FILTER_BASIC_QP_DEC; - } - g_free (encoding); - - if (enctype != 0) { - fdec = (CamelMimeFilter *)camel_mime_filter_basic_new_type(enctype); - decid = camel_mime_parser_filter_add (mp, fdec); - } - } - - /* 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); - } - - /* Possible Lame Mailer Alert... check the META tags for a charset */ - if (!charset && header_content_type_is (ct, "text", "html")) - charset = check_html_charset (mp, enctype); - - /* if the charset is not us-ascii or utf-8, then we need to convert to utf-8 */ - if (charset && !(g_strcasecmp (charset, "us-ascii") == 0 || g_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); - } -} |