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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "mimeeobj.h"
#define MIME_SUPERCLASS mimeLeafClass
MimeDefClass(MimeExternalObject, MimeExternalObjectClass,
mimeExternalObjectClass, &MIME_SUPERCLASS);
static int MimeExternalObject_parse_begin(MimeObject*);
static int MimeExternalObject_parse_buffer(const char*, int32_t, MimeClosure);
static int MimeExternalObject_parse_line(const char*, int32_t, MimeObject*);
static int MimeExternalObject_parse_decoded_buffer(const char*, int32_t,
MimeClosure);
static bool MimeExternalObject_displayable_inline_p(MimeObjectClass* clazz,
MimeHeaders* hdrs);
static int MimeExternalObjectClassInitialize(MimeObjectClass* oclass) {
MimeLeafClass* lclass = (MimeLeafClass*)oclass;
NS_ASSERTION(!oclass->class_initialized,
"1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
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_parse_begin(MimeObject* obj) {
int status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_begin(obj);
if (status < 0) return status;
// 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;
NS_ASSERTION(obj->options->state->first_data_written_p,
"1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
}
return 0;
}
static int MimeExternalObject_parse_buffer(const char* buffer, int32_t size,
MimeClosure closure) {
MimeObject* obj = closure.AsMimeObject();
if (!obj) {
return -1;
}
NS_ASSERTION(!obj->closed_p, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
if (obj->closed_p) return -1;
// Currently, we always want to stream, in order to determine the size of the
// MIME object.
/* The data will be base64-decoded and passed to
MimeExternalObject_parse_decoded_buffer. */
return ((MimeObjectClass*)&MIME_SUPERCLASS)
->parse_buffer(buffer, size, closure);
}
static int MimeExternalObject_parse_decoded_buffer(const char* buf,
int32_t size,
MimeClosure closure) {
/* 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.
*/
/* Don't do a roundtrip through XPConnect when we're only interested in
* metadata and size. This includes when we are writing HTML (otherwise, the
* contents of binary attachments will just get dumped into messages when
* reading them) and the JS emitter (which doesn't care about attachment data
* at all). 0 means ok, the caller just checks for negative return value.
*/
MimeObject* obj = closure.AsMimeObject();
if (!obj) {
return -1;
}
if (obj->options &&
(obj->options->metadata_only || obj->options->write_html_p))
return 0;
else
return MimeObject_write(obj, buf, size, true);
}
static int MimeExternalObject_parse_line(const char* line, int32_t length,
MimeObject* obj) {
NS_ERROR(
"This method should never be called (externals do no line buffering).");
return -1;
}
static bool MimeExternalObject_displayable_inline_p(MimeObjectClass* clazz,
MimeHeaders* hdrs) {
return false;
}
#undef MIME_SUPERCLASS
#define MIME_SUPERCLASS mimeExternalObjectClass
MimeDefClass(MimeSuppressedCrypto, MimeSuppressedCryptoClass,
mimeSuppressedCryptoClass, &MIME_SUPERCLASS);
static int MimeSuppressedCryptoClassInitialize(MimeObjectClass* oclass) {
return MimeExternalObjectClassInitialize(oclass);
}
#undef MIME_SUPERCLASS