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- /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /* mimeeobj.c --- definition of the MimeExternalObject class (see mimei.h)
- Created: Jamie Zawinski <jwz@netscape.com>, 15-May-96.
- */
-
-
- #include "mimeeobj.h"
- #include "xpgetstr.h"
-
- #define MIME_SUPERCLASS mimeLeafClass
- MimeDefClass(MimeExternalObject, MimeExternalObjectClass,
- mimeExternalObjectClass, &MIME_SUPERCLASS);
-
- extern int MK_MSG_ATTACHMENT;
-
- #if defined(XP_MAC) && !defined(MOZILLA_30)
- extern MimeObjectClass mimeMultipartAppleDoubleClass;
- #endif
-
- static int MimeExternalObject_initialize (MimeObject *);
- static void MimeExternalObject_finalize (MimeObject *);
- static int MimeExternalObject_parse_begin (MimeObject *);
- static int MimeExternalObject_parse_buffer (char *, int32, MimeObject *);
- static int MimeExternalObject_parse_line (char *, int32, MimeObject *);
- static int MimeExternalObject_parse_decoded_buffer (char*, int32, MimeObject*);
- static XP_Bool MimeExternalObject_displayable_inline_p (MimeObjectClass *class,
- MimeHeaders *hdrs);
-
- static int
- MimeExternalObjectClassInitialize(MimeExternalObjectClass *class)
- {
- MimeObjectClass *oclass = (MimeObjectClass *) class;
- MimeLeafClass *lclass = (MimeLeafClass *) class;
-
- XP_ASSERT(!oclass->class_initialized);
- 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;
-
- status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_begin(obj);
- if (status < 0) return status;
-
- #if defined (XP_MAC) && !defined(MOZILLA_30)
- if (obj->parent && mime_typep(obj->parent,
- (MimeObjectClass *) &mimeMultipartAppleDoubleClass))
- goto done;
- #endif /* defined (XP_MAC) && !defined(MOZILLA_30) */
-
- /* 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 &&
- 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;
- XP_ASSERT(obj->options->state->first_data_written_p);
- }
-
-
- /* 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 &&
- obj->output_p &&
- obj->options->write_html_p &&
- obj->options->output_fn)
- {
- MimeDisplayOptions newopt = *obj->options; /* copy it */
- char *id = 0;
- char *id_url = 0;
- char *id_name = 0;
- XP_Bool all_headers_p = obj->options->headers == MimeHeadersAll;
-
- id = mime_part_address (obj);
- if (! id) return MK_OUT_OF_MEMORY;
-
- if (obj->options && obj->options->url)
- {
- const char *url = obj->options->url;
- id_url = mime_set_url_part(url, id, TRUE);
- if (!id_url)
- {
- XP_FREE(id);
- return MK_OUT_OF_MEMORY;
- }
- }
-
- if (!XP_STRCMP (id, "0"))
- {
- XP_FREE(id);
- id = XP_STRDUP(XP_GetString(MK_MSG_ATTACHMENT));
- }
- else
- {
- const char *p = "Part "; /* #### i18n */
- char *s = (char *)XP_ALLOC(XP_STRLEN(p) + XP_STRLEN(id) + 1);
- if (!s)
- {
- XP_FREE(id);
- XP_FREE(id_url);
- return MK_OUT_OF_MEMORY;
- }
- /* we have a valid id */
- if (id)
- id_name = mime_find_suggested_name_of_part(id, obj);
- XP_STRCPY(s, p);
- XP_STRCAT(s, id);
- XP_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. */
- obj->options->state &&
- obj->options->state->root == obj->parent)
- all_headers_p = FALSE;
-
- newopt.fancy_headers_p = TRUE;
- newopt.headers = (all_headers_p ? MimeHeadersAll : MimeHeadersSome);
-
- {
- char p[] = "<P>";
- status = MimeObject_write(obj, p, 3, FALSE);
- if (status < 0) goto FAIL;
- }
-
- status = MimeHeaders_write_attachment_box (obj->headers, &newopt,
- obj->content_type,
- obj->encoding,
- id_name? id_name : id, id_url, 0);
- FREEIF(id_name);
- if (status < 0) goto FAIL;
-
- {
- char p[] = "<P>";
- status = MimeObject_write(obj, p, 3, FALSE);
- if (status < 0) goto FAIL;
- }
-
- FAIL:
- FREEIF(id);
- FREEIF(id_url);
- FREEIF(id_name);
- if (status < 0) return status;
- }
-
- #if defined (XP_MAC) && !defined(MOZILLA_30)
- done:
- #endif /* defined (XP_MAC) && !defined(MOZILLA_30) */
-
- return 0;
- }
-
- static int
- MimeExternalObject_parse_buffer (char *buffer, int32 size, MimeObject *obj)
- {
- XP_ASSERT(!obj->closed_p);
- 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 (char *buf, int32 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)
- {
- XP_ASSERT(0);
- return -1;
- }
-
- return MimeObject_write(obj, buf, size, TRUE);
- }
-
-
- static int
- MimeExternalObject_parse_line (char *line, int32 length, MimeObject *obj)
- {
- /* This method should never be called (externals do no line buffering).
- */
- XP_ASSERT(0);
- return -1;
- }
-
- static XP_Bool
- MimeExternalObject_displayable_inline_p (MimeObjectClass *class,
- MimeHeaders *hdrs)
- {
- return FALSE;
- }
-