pjs/mailnews/mime/src/mimeeobj.cpp

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
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#include "nsCOMPtr.h"
#include "mimeeobj.h"
#include "prmem.h"
#include "plstr.h"
#include "prlog.h"
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#include "nsMimeStringResources.h"
#include "mimemoz2.h"
#include "nsCRT.h"
#include "mimemapl.h"
#include "nsMimeTypes.h"
#define MIME_SUPERCLASS mimeLeafClass
MimeDefClass(MimeExternalObject, MimeExternalObjectClass,
mimeExternalObjectClass, &MIME_SUPERCLASS);
static int MimeExternalObject_initialize (MimeObject *);
static void MimeExternalObject_finalize (MimeObject *);
static int MimeExternalObject_parse_begin (MimeObject *);
static int MimeExternalObject_parse_buffer (const char *, PRInt32, MimeObject *);
static int MimeExternalObject_parse_line (char *, PRInt32, MimeObject *);
static int MimeExternalObject_parse_decoded_buffer (const char*, PRInt32, MimeObject*);
static PRBool MimeExternalObject_displayable_inline_p (MimeObjectClass *clazz,
MimeHeaders *hdrs);
static int
MimeExternalObjectClassInitialize(MimeExternalObjectClass *clazz)
{
MimeObjectClass *oclass = (MimeObjectClass *) clazz;
MimeLeafClass *lclass = (MimeLeafClass *) clazz;
NS_ASSERTION(!oclass->class_initialized, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
oclass->initialize = MimeExternalObject_initialize;
oclass->finalize = MimeExternalObject_finalize;
oclass->parse_begin = MimeExternalObject_parse_begin;
oclass->parse_buffer = MimeExternalObject_parse_buffer;
oclass->parse_line = MimeExternalObject_parse_line;
oclass->displayable_inline_p = MimeExternalObject_displayable_inline_p;
lclass->parse_decoded_buffer = MimeExternalObject_parse_decoded_buffer;
return 0;
}
static int
MimeExternalObject_initialize (MimeObject *object)
{
return ((MimeObjectClass*)&MIME_SUPERCLASS)->initialize(object);
}
static void
MimeExternalObject_finalize (MimeObject *object)
{
((MimeObjectClass*)&MIME_SUPERCLASS)->finalize(object);
}
static int
MimeExternalObject_parse_begin (MimeObject *obj)
{
int status;
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status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_begin(obj);
if (status < 0) return status;
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// If we're writing this object, and we're doing it in raw form, then
// now is the time to inform the backend what the type of this data is.
//
if (obj->output_p &&
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obj->options &&
!obj->options->write_html_p &&
!obj->options->state->first_data_written_p)
{
status = MimeObject_output_init(obj, 0);
if (status < 0) return status;
NS_ASSERTION(obj->options->state->first_data_written_p, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
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}
//
// If we're writing this object as HTML, do all the work now -- just write
// out a table with a link in it. (Later calls to the `parse_buffer' method
// will simply discard the data of the object itself.)
//
if (obj->options &&
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obj->output_p &&
obj->options->write_html_p &&
obj->options->output_fn)
{
MimeDisplayOptions newopt = *obj->options; // copy it
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char *id = 0;
char *id_url = 0;
char *id_name = 0;
nsXPIDLCString id_imap;
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PRBool all_headers_p = obj->options->headers == MimeHeadersAll;
id = mime_part_address (obj);
if (obj->options->missing_parts)
id_imap.Adopt(mime_imap_part_address (obj));
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if (! id) return MIME_OUT_OF_MEMORY;
if (obj->options && obj->options->url)
{
const char *url = obj->options->url;
if (id_imap && id)
{
// if this is an IMAP part.
id_url = mime_set_url_imap_part(url, id_imap.get(), id);
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}
else
{
// This is just a normal MIME part as usual.
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id_url = mime_set_url_part(url, id, PR_TRUE);
}
if (!id_url)
{
PR_Free(id);
return MIME_OUT_OF_MEMORY;
}
}
if (!nsCRT::strcmp (id, "0"))
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{
PR_Free(id);
id = MimeGetStringByID(MIME_MSG_ATTACHMENT);
}
else
{
const char *p = "Part ";
char *s = (char *)PR_MALLOC(strlen(p) + strlen(id) + 1);
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if (!s)
{
PR_Free(id);
PR_Free(id_url);
return MIME_OUT_OF_MEMORY;
}
// we have a valid id
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if (id)
id_name = mime_find_suggested_name_of_part(id, obj);
PL_strcpy(s, p);
PL_strcat(s, id);
PR_Free(id);
id = s;
}
if (all_headers_p &&
// Don't bother showing all headers on this part if it's the only
// part in the message: in that case, we've already shown these
// headers.
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obj->options->state &&
obj->options->state->root == obj->parent)
all_headers_p = PR_FALSE;
newopt.fancy_headers_p = PR_TRUE;
newopt.headers = (all_headers_p ? MimeHeadersAll : MimeHeadersSome);
/******
RICHIE SHERRY
GOTTA STILL DO THIS FOR QUOTING!
status = MimeHeaders_write_attachment_box (obj->headers, &newopt,
obj->content_type,
obj->encoding,
id_name? id_name : id, id_url, 0)
*****/
// obj->options really owns the storage for this.
newopt.part_to_load = nsnull;
newopt.default_charset = nsnull;
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PR_FREEIF(id);
PR_FREEIF(id_url);
PR_FREEIF(id_name);
if (status < 0) return status;
}
return 0;
}
static int
MimeExternalObject_parse_buffer (const char *buffer, PRInt32 size, MimeObject *obj)
{
NS_ASSERTION(!obj->closed_p, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
if (obj->closed_p) return -1;
if (obj->output_p &&
obj->options &&
!obj->options->write_html_p)
{
/* The data will be base64-decoded and passed to
MimeExternalObject_parse_decoded_buffer. */
return ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_buffer(buffer, size,
obj);
}
else
{
/* Otherwise, simply ignore the data. */
return 0;
}
}
static int
MimeExternalObject_parse_decoded_buffer (const char *buf, PRInt32 size,
MimeObject *obj)
{
/* This is called (by MimeLeafClass->parse_buffer) with blocks of data
that have already been base64-decoded. This will only be called in
the case where we're not emitting HTML, and want access to the raw
data itself.
We override the `parse_decoded_buffer' method provided by MimeLeaf
because, unlike most children of MimeLeaf, we do not want to line-
buffer the decoded data -- we want to simply pass it along to the
backend, without going through our `parse_line' method.
*/
if (!obj->output_p ||
!obj->options ||
obj->options->write_html_p)
{
NS_ASSERTION(0, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
return -1;
}
return MimeObject_write(obj, buf, size, PR_TRUE);
}
static int
MimeExternalObject_parse_line (char *line, PRInt32 length, MimeObject *obj)
{
/* This method should never be called (externals do no line buffering).
*/
NS_ASSERTION(0, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
return -1;
}
static PRBool
MimeExternalObject_displayable_inline_p (MimeObjectClass *clazz,
MimeHeaders *hdrs)
{
return PR_FALSE;
}