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author | Milan Crha <mcrha@redhat.com> | 2010-12-13 23:30:21 +0800 |
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committer | Milan Crha <mcrha@redhat.com> | 2010-12-13 23:30:21 +0800 |
commit | a8bde44b69e42fdb5640930e28c5005b897053df (patch) | |
tree | fea363167793260e40ae0ddff89dce6aef9f1a93 /mail/em-inline-filter.c | |
parent | da223fce69fe73305c0ab03abd4f092a72686556 (diff) | |
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Bug #436914 - Reply to inline GPG quotes raw GPG message
Diffstat (limited to 'mail/em-inline-filter.c')
-rw-r--r-- | mail/em-inline-filter.c | 388 |
1 files changed, 0 insertions, 388 deletions
diff --git a/mail/em-inline-filter.c b/mail/em-inline-filter.c deleted file mode 100644 index 7222c03489..0000000000 --- a/mail/em-inline-filter.c +++ /dev/null @@ -1,388 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) version 3. - * - * 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with the program; if not, see <http://www.gnu.org/licenses/> - * - * - * Authors: - * Michael Zucchi <notzed@ximian.com> - * - * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com) - * - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <string.h> - -#include "em-inline-filter.h" - -#include "em-utils.h" -#include "em-format/em-format.h" - -#define d(x) - -G_DEFINE_TYPE (EMInlineFilter, em_inline_filter, CAMEL_TYPE_MIME_FILTER) - -enum { - EMIF_PLAIN, - EMIF_BINHEX, - EMIF_POSTSCRIPT, - EMIF_PGPSIGNED, - EMIF_PGPENCRYPTED -}; - -static const struct { - const gchar *type; - const gchar *subtype; - CamelTransferEncoding encoding; - guint plain:1; -} emif_types[] = { - { "text", "plain", CAMEL_TRANSFER_ENCODING_DEFAULT, 1, }, - { "application", "mac-binhex40", CAMEL_TRANSFER_ENCODING_7BIT, 0, }, - { "application", "postscript", CAMEL_TRANSFER_ENCODING_7BIT, 0, }, - { "application", "x-inlinepgp-signed", CAMEL_TRANSFER_ENCODING_DEFAULT, 0, }, - { "application", "x-inlinepgp-encrypted", CAMEL_TRANSFER_ENCODING_DEFAULT, 0, }, -}; - -static void -inline_filter_add_part (EMInlineFilter *emif, const gchar *data, gint len) -{ - CamelTransferEncoding encoding; - CamelContentType *content_type; - CamelDataWrapper *dw; - const gchar *mimetype; - CamelMimePart *part; - CamelStream *mem; - gchar *type; - - if (emif->state == EMIF_PLAIN || emif->state == EMIF_PGPSIGNED || emif->state == EMIF_PGPENCRYPTED) - encoding = emif->base_encoding; - else - encoding = emif_types[emif->state].encoding; - - g_byte_array_append (emif->data, (guchar *)data, len); - /* check the part will actually have content */ - if (emif->data->len <= 0) { - return; - } - - mem = camel_stream_mem_new_with_byte_array (emif->data); - emif->data = g_byte_array_new (); - - dw = camel_data_wrapper_new (); - if (encoding == emif->base_encoding && (encoding == CAMEL_TRANSFER_ENCODING_BASE64 || encoding == CAMEL_TRANSFER_ENCODING_QUOTEDPRINTABLE)) { - CamelMimeFilter *enc_filter = camel_mime_filter_basic_new (encoding == CAMEL_TRANSFER_ENCODING_BASE64 ? CAMEL_MIME_FILTER_BASIC_BASE64_ENC : CAMEL_MIME_FILTER_BASIC_QP_ENC); - CamelStream *filter_stream; - - filter_stream = camel_stream_filter_new (mem); - camel_stream_filter_add (CAMEL_STREAM_FILTER (filter_stream), enc_filter); - - /* properly encode content */ - camel_data_wrapper_construct_from_stream_sync ( - dw, filter_stream, NULL, NULL); - - g_object_unref (enc_filter); - g_object_unref (filter_stream); - } else { - camel_data_wrapper_construct_from_stream_sync ( - dw, mem, NULL, NULL); - } - g_object_unref (mem); - - if (emif_types[emif->state].plain && emif->base_type) { - /* create a copy */ - type = camel_content_type_format (emif->base_type); - content_type = camel_content_type_decode (type); - g_free (type); - } else { - /* we want to preserve all params */ - type = camel_content_type_format (emif->base_type); - content_type = camel_content_type_decode (type); - g_free (type); - - g_free (content_type->type); - g_free (content_type->subtype); - content_type->type = g_strdup (emif_types[emif->state].type); - content_type->subtype = g_strdup (emif_types[emif->state].subtype); - } - - camel_data_wrapper_set_mime_type_field (dw, content_type); - camel_content_type_unref (content_type); - dw->encoding = encoding; - - part = camel_mime_part_new (); - camel_medium_set_content ((CamelMedium *)part, dw); - camel_mime_part_set_encoding (part, encoding); - g_object_unref (dw); - - if (emif->filename) - camel_mime_part_set_filename (part, emif->filename); - - /* pre-snoop the mime type of unknown objects, and poke and hack it into place */ - if (camel_content_type_is(dw->mime_type, "application", "octet-stream") - && (mimetype = em_format_snoop_type (part)) - && strcmp(mimetype, "application/octet-stream") != 0) { - camel_data_wrapper_set_mime_type (dw, mimetype); - camel_mime_part_set_content_type (part, mimetype); - if (emif->filename) - camel_mime_part_set_filename (part, emif->filename); - } - - g_free (emif->filename); - emif->filename = NULL; - - emif->parts = g_slist_append (emif->parts, part); -} - -static gint -inline_filter_scan (CamelMimeFilter *f, gchar *in, gsize len, gint final) -{ - EMInlineFilter *emif = (EMInlineFilter *)f; - gchar *inptr = in, *inend = in+len; - gchar *data_start = in; - gchar *start = in; - - while (inptr < inend) { - gint rest_len; - - start = inptr; - - while (inptr < inend && *inptr != '\n') - inptr++; - - if (inptr == inend && start == inptr) { - if (!final) { - camel_mime_filter_backup (f, start, inend-start); - inend = start; - } - break; - } - - rest_len = inend - start; - if (inptr < inend) - *inptr++ = 0; - - #define restore_inptr() G_STMT_START { if (inptr < inend) inptr[-1] = '\n'; } G_STMT_END - - switch (emif->state) { - case EMIF_PLAIN: - if (rest_len >= 45 && strncmp (start, "(This file must be converted with BinHex 4.0)", 45) == 0) { - restore_inptr (); - inline_filter_add_part (emif, data_start, start-data_start); - data_start = start; - emif->state = EMIF_BINHEX; - } else if (rest_len >= 11 && strncmp (start, "%!PS-Adobe-", 11) == 0) { - restore_inptr (); - inline_filter_add_part (emif, data_start, start-data_start); - data_start = start; - emif->state = EMIF_POSTSCRIPT; - } else if (rest_len >= 34 && strncmp (start, "-----BEGIN PGP SIGNED MESSAGE-----", 34) == 0) { - restore_inptr (); - inline_filter_add_part (emif, data_start, start-data_start); - data_start = start; - emif->state = EMIF_PGPSIGNED; - } else if (rest_len >= 27 && strncmp (start, "-----BEGIN PGP MESSAGE-----", 27) == 0) { - restore_inptr (); - inline_filter_add_part (emif, data_start, start-data_start); - data_start = start; - emif->state = EMIF_PGPENCRYPTED; - } - - break; - case EMIF_BINHEX: - if (inptr > (start+1) && inptr[-2] == ':') { - restore_inptr (); - inline_filter_add_part (emif, data_start, inptr-data_start); - data_start = inptr; - emif->state = EMIF_PLAIN; - } - break; - case EMIF_POSTSCRIPT: - if (rest_len >= 5 && strncmp (start, "%%EOF", 5) == 0) { - restore_inptr (); - inline_filter_add_part (emif, data_start, inptr-data_start); - data_start = inptr; - emif->state = EMIF_PLAIN; - } - break; - case EMIF_PGPSIGNED: - if (rest_len >= 27 && strncmp (start, "-----END PGP SIGNATURE-----", 27) == 0) { - restore_inptr (); - inline_filter_add_part (emif, data_start, inptr-data_start); - data_start = inptr; - emif->state = EMIF_PLAIN; - } - break; - case EMIF_PGPENCRYPTED: - if (rest_len >= 25 && strncmp (start, "-----END PGP MESSAGE-----", 25) == 0) { - restore_inptr (); - inline_filter_add_part (emif, data_start, inptr-data_start); - data_start = inptr; - emif->state = EMIF_PLAIN; - } - break; - } - - restore_inptr (); - - #undef restore_inptr - } - - if (final) { - /* always stop as plain, especially when not read those tags fully */ - emif->state = EMIF_PLAIN; - - inline_filter_add_part (emif, data_start, inend - data_start); - } else if (start > data_start) { - /* backup the last line, in case the tag is divided within buffers */ - camel_mime_filter_backup (f, start, inend - start); - g_byte_array_append (emif->data, (guchar *)data_start, start - data_start); - } else { - g_byte_array_append (emif->data, (guchar *)data_start, inend - data_start); - } - - return 0; -} - -static void -inline_filter_finalize (GObject *object) -{ - EMInlineFilter *emif = EM_INLINE_FILTER (object); - - if (emif->base_type) - camel_content_type_unref (emif->base_type); - - camel_mime_filter_reset (CAMEL_MIME_FILTER (object)); - g_byte_array_free (emif->data, TRUE); - g_free (emif->filename); - - /* Chain up to parent's finalize() method. */ - G_OBJECT_CLASS (em_inline_filter_parent_class)->finalize (object); -} - -static void -inline_filter_filter (CamelMimeFilter *filter, - const gchar *in, - gsize len, - gsize prespace, - gchar **out, - gsize *outlen, - gsize *outprespace) -{ - inline_filter_scan (filter, (gchar *)in, len, FALSE); - - *out = (gchar *)in; - *outlen = len; - *outprespace = prespace; -} - -static void -inline_filter_complete (CamelMimeFilter *filter, - const gchar *in, - gsize len, - gsize prespace, - gchar **out, - gsize *outlen, - gsize *outprespace) -{ - inline_filter_scan (filter, (gchar *)in, len, TRUE); - - *out = (gchar *)in; - *outlen = len; - *outprespace = prespace; -} - -static void -inline_filter_reset (CamelMimeFilter *filter) -{ - EMInlineFilter *emif = EM_INLINE_FILTER (filter); - GSList *l; - - l = emif->parts; - while (l) { - GSList *n = l->next; - - g_object_unref (l->data); - g_slist_free_1 (l); - - l = n; - } - emif->parts = NULL; - g_byte_array_set_size (emif->data, 0); -} - -static void -em_inline_filter_class_init (EMInlineFilterClass *class) -{ - GObjectClass *object_class; - CamelMimeFilterClass *mime_filter_class; - - object_class = G_OBJECT_CLASS (class); - object_class->finalize = inline_filter_finalize; - - mime_filter_class = CAMEL_MIME_FILTER_CLASS (class); - mime_filter_class->filter = inline_filter_filter; - mime_filter_class->complete = inline_filter_complete; - mime_filter_class->reset = inline_filter_reset; -} - -static void -em_inline_filter_init (EMInlineFilter *emif) -{ - emif->data = g_byte_array_new (); -} - -/** - * em_inline_filter_new: - * @base_encoding: The base transfer-encoding of the - * raw data being processed. - * @base_type: The base content-type of the raw data, should always be - * text/plain. - * - * Create a filter which will scan a (text) stream for - * embedded parts. You can then retrieve the contents - * as a CamelMultipart object. - * - * Return value: - **/ -EMInlineFilter * -em_inline_filter_new (CamelTransferEncoding base_encoding, CamelContentType *base_type) -{ - EMInlineFilter *emif; - - emif = g_object_new (EM_TYPE_INLINE_FILTER, NULL); - emif->base_encoding = base_encoding; - if (base_type) { - emif->base_type = base_type; - camel_content_type_ref (emif->base_type); - } - - return emif; -} - -CamelMultipart * -em_inline_filter_get_multipart (EMInlineFilter *emif) -{ - GSList *l = emif->parts; - CamelMultipart *mp; - - mp = camel_multipart_new (); - while (l) { - camel_multipart_add_part (mp, l->data); - l = l->next; - } - - return mp; -} |